Updated to support IIP v3.3

Esiur.Stores.MongoDB/MongoDBStore.cs

@@ -7,6 +7,10 @@ using MongoDB.Bson;
 using Esiur.Data;
 using System.Collections.Generic;
 using System.Reflection;
+using System.Threading.Tasks;
+using Esiur.Resource.Template;
+using System.Linq;
+using Esiur.Security.Permissions;
 
 namespace Esiur.Stores.MongoDB
 {
@@ -17,6 +21,7 @@ namespace Esiur.Stores.MongoDB
         public event DestroyedEvent OnDestroy;
         MongoClient client;
         IMongoDatabase database;
+        IMongoCollection<BsonDocument> resourcesCollection;
 
         Dictionary<string, IResource> resources = new Dictionary<string, IResource>();
 
@@ -25,28 +30,70 @@ namespace Esiur.Stores.MongoDB
         {
             get { return resources.Count; }
         }
+
         public void Destroy()
         {
 
         }
 
+        
+        public bool Record(IResource resource, string propertyName, object value, ulong age, DateTime date)
+        {
+            var objectId = resource.Instance.Attributes["objectId"].ToString();
+            //var bsonObjectId = new BsonObjectId(new ObjectId(objectId));
+
+            var record = this.database.GetCollection<BsonDocument>("record_" + objectId);
+
+            record.InsertOne(new BsonDocument()
+            {
+                {"property", propertyName}, {"age", BsonValue.Create(age) }, {"date", date}, {"value", Compose(value) }
+            });
+
+            var col = this.database.GetCollection<BsonDocument>("resources");
+
+
+
+            var filter = Builders<BsonDocument>.Filter.Eq("_id", new BsonObjectId(new ObjectId(objectId)));
+            var update = Builders<BsonDocument>.Update
+                .Set("values." + propertyName, new BsonDocument { { "age", BsonValue.Create(age) },
+                                     { "modification", date },
+                                     { "value", Compose(value) } });
+
+            col.UpdateOne(filter, update);
+
+            return true;
+        }
+
         public MongoDBStore()
         {
             client = new MongoClient();
             this.database = client.GetDatabase("esiur");
+            this.resourcesCollection = this.database.GetCollection<BsonDocument>("resources");
+
         }
 
         public MongoDBStore(string connectionString, string database)
         {
             client = new MongoClient(connectionString);
             this.database = client.GetDatabase(database);
+            this.resourcesCollection = this.database.GetCollection<BsonDocument>("resources");
         }
 
+        public bool Remove(IResource resource)
+        {
+            var objectId = resource.Instance.Attributes["objectId"].ToString();
+            var filter = Builders<BsonDocument>.Filter.Eq("_id", new BsonObjectId(new ObjectId(objectId)));
+
+            this.database.DropCollection("record_" + objectId);
+            resourcesCollection.DeleteOne(filter);
+
+            return true;
+        }
 
         AsyncReply<IResource> Fetch(string id)
         {
             var filter = Builders<BsonDocument>.Filter.Eq("_id", new BsonObjectId(new ObjectId(id)));
-            var list = this.database.GetCollection<BsonDocument>("resources").Find(filter).ToList();
+            var list = resourcesCollection.Find(filter).ToList();
             if (list.Count == 0)
                 return new AsyncReply<IResource>(null);
             var document = list[0];
@@ -60,6 +107,11 @@ namespace Esiur.Stores.MongoDB
 
             var parents = document["parents"].AsBsonArray;
             var children = document["children"].AsBsonArray;
+            //var managers = document["managers"].AsBsonArray;
+
+            var attributes = Parse(document["attributes"]).Then(x=> {
+                resource.Instance.SetAttributes(x as Structure);
+            });
 
             var bag = new AsyncBag<object>();
 
@@ -69,7 +121,8 @@ namespace Esiur.Stores.MongoDB
                 bag.Add(ap);
                 ap.Then((x) =>
                 {
-                    resource.Instance.Parents.Add(x);
+                    if (!resource.Instance.Parents.Contains(x))
+                        resource.Instance.Parents.Add(x);
                 });
             }
 
@@ -80,28 +133,41 @@ namespace Esiur.Stores.MongoDB
                 bag.Add(ac);
                 ac.Then((x) =>
                 {
-                    resource.Instance.Children.Add(x);
+                    if (!resource.Instance.Children.Contains(x))
+                        resource.Instance.Children.Add(x);
                 });
             }
 
+            /*
+            // load managers
+            foreach(var m in managers)
+            {
+                IPermissionsManager pm = (IPermissionsManager)Activator.CreateInstance(Type.GetType(m["classname"].AsString));
+                var sr = Parse(m["settings"]);
+                bag.Add(sr);
+                sr.Then((x) =>
+                {
+                    pm.Initialize((Structure)x, resource);
+                    resource.Instance.Managers.Add(pm);
+                });
+            }
+            */
+
             // Load values
             var values = document["values"].AsBsonDocument;
 
 
             foreach (var v in values)
             {
-#if NETSTANDARD1_5
-                var pi = resource.GetType().GetTypeInfo().GetProperty(v.Name);
-#else
-                var pi = resource.GetType().GetProperty(pt.Name);
-#endif
  
-                var av = Parse(v.Value);
+
+                var valueInfo = v.Value as BsonDocument;
+
+                var av = Parse(valueInfo["value"]);
                 bag.Add(av);
                 av.Then((x) =>
                 {
-                    if (pi.CanWrite)
-                        pi.SetValue(resource, DC.CastConvert(x, pi.PropertyType));
+                    resource.Instance.LoadProperty(v.Name, (ulong)valueInfo["age"].AsInt64, valueInfo["modification"].ToUniversalTime(), x);
                 });
             }
 
@@ -163,8 +229,13 @@ namespace Esiur.Stores.MongoDB
 
                 return bag;
             }
+            else if (value.BsonType == BsonType.DateTime)
+            {
+                return new AsyncReply(value.ToUniversalTime());
+            }
             else
             {
+            
                 return new AsyncReply(value.RawValue);
             }
         }
@@ -194,6 +265,8 @@ namespace Esiur.Stores.MongoDB
         public bool Put(IResource resource)
         {
 
+            var attrs = resource.Instance.GetAttributes();
+
             foreach (var kv in resources)
                 if (kv.Value == resource)
                 {
@@ -203,6 +276,7 @@ namespace Esiur.Stores.MongoDB
 
             var parents = new BsonArray();
             var children = new BsonArray();
+
             var template = resource.Instance.Template;
 
             foreach (IResource c in resource.Instance.Children)
@@ -211,20 +285,11 @@ namespace Esiur.Stores.MongoDB
             foreach (IResource p in resource.Instance.Parents)
                 parents.Add(p.Instance.Link);
             
-            var document = new BsonDocument
-            {
-                { "parents", parents },
-                { "children", children },
-                { "classname", resource.GetType().AssemblyQualifiedName },
-                { "name", resource.Instance.Name }
-            };
+
+            var attrsDoc = ComposeStructure(attrs);
 
            
-            var col = this.database.GetCollection<BsonDocument>("resources");
 
-            col.InsertOne(document);
-
-            resource.Instance.Attributes["objectId"] = document["_id"].ToString();
             
             var values = new BsonDocument();
 
@@ -237,18 +302,33 @@ namespace Esiur.Stores.MongoDB
 #endif
                 var rt = pi.GetValue(resource, null);
  
-                values.Add(pt.Name, Compose(rt));
+                values.Add(pt.Name,
+                  new BsonDocument { { "age", BsonValue.Create(resource.Instance.GetAge(pt.Index)) },
+                                     { "modification", resource.Instance.GetModificationDate(pt.Index) },
+                                     { "value", Compose(rt) } });
             }
 
-            var filter = Builders<BsonDocument>.Filter.Eq("_id", document["_id"]);
-            var update = Builders<BsonDocument>.Update
-                .Set("values", values);
+//            var filter = Builders<BsonDocument>.Filter.Eq("_id", document["_id"]);
+//            var update = Builders<BsonDocument>.Update
+//                .Set("values", values);
+//            col.UpdateOne(filter, update);
 
-            col.UpdateOne(filter, update);
 
-            //document.Add("values", values);
+            var document = new BsonDocument
+            {
+                { "parents", parents },
+                { "children", children },
+                { "attributes", attrsDoc },
+                { "classname", resource.GetType().FullName + "," + resource.GetType().GetTypeInfo().Assembly.GetName().Name },
+                { "name", resource.Instance.Name },
+                { "values", values }
+            };
+
+
+            resourcesCollection.InsertOne(document);
+
+            resource.Instance.Attributes["objectId"] = document["_id"].ToString();
 
-            //col.ReplaceOne(document, document);
             return true;
         }
 
@@ -356,17 +436,19 @@ namespace Esiur.Stores.MongoDB
             {
                 var filter = new BsonDocument();
 
-                var list = this.database.GetCollection<BsonDocument>("resources").Find(filter).ToList();
+                var list = resourcesCollection.Find(filter).ToList();
 
+                Console.WriteLine(list.Count);
 
                 // if (list.Count == 0)
                 //   return new AsyncBag<IResource>(new IResource[0]);
 
                 var bag = new AsyncBag<IResource>();
 
-                foreach (var r in list)
+                for(var i = 0; i < list.Count; i++)
                 {
-                    bag.Add(Get("id/" + r["_id"].AsObjectId.ToString()));
+                    Console.WriteLine("Loading {0}/{1}", i, list.Count);
+                    bag.Add(Get("id/" + list[i]["_id"].AsObjectId.ToString()));
                 }
 
                 bag.Seal();
@@ -392,6 +474,8 @@ namespace Esiur.Stores.MongoDB
 
         public void SaveResource(IResource resource)
         {
+            var attrs = resource.Instance.GetAttributes();
+
             var parents = new BsonArray();
             var children = new BsonArray();
             var template = resource.Instance.Template;
@@ -402,6 +486,7 @@ namespace Esiur.Stores.MongoDB
             foreach (IResource p in resource.Instance.Parents)
                 parents.Add(p.Instance.Link);
  
+
             var values = new BsonDocument();
 
             foreach (var pt in template.Properties)
@@ -413,27 +498,181 @@ namespace Esiur.Stores.MongoDB
 #endif
                 var rt = pi.GetValue(resource, null);
 
-                values.Add(pt.Name, Compose(rt));
+                values.Add(pt.Name,
+                                      new BsonDocument { { "age", BsonValue.Create(resource.Instance.GetAge(pt.Index)) },
+                                     { "modification", resource.Instance.GetModificationDate(pt.Index) },
+                                     { "value", Compose(rt) } });
+
             }
 
+            var attrsDoc = ComposeStructure(attrs);
+
             var document = new BsonDocument
             {
                 { "parents", parents },
                 { "children", children },
-                { "classname", resource.GetType().AssemblyQualifiedName },
+                {"attributes", attrsDoc },
+                { "classname", resource.GetType().FullName + "," + resource.GetType().GetTypeInfo().Assembly.GetName().Name },
                 { "name", resource.Instance.Name },
                 { "_id", new BsonObjectId(new ObjectId(resource.Instance.Attributes["objectId"].ToString())) },
                 {"values", values }
             };
 
 
-            var col = this.database.GetCollection<BsonDocument>("resources");
 
             var filter = Builders<BsonDocument>.Filter.Eq("_id", document["_id"]);
+
+            /*
             var update = Builders<BsonDocument>.Update
                 .Set("values", values);
 
-            col.UpdateOne(filter, update);
+            var update = Builders<BsonDocument>.Update.Set("values", values).Set("parents", parents;
+                        col.UpdateOne(filter, update);
+
+            */
+
+            resourcesCollection.ReplaceOne(filter, document);
+        }
+
+        public AsyncReply<PropertyValue[]> GetPropertyRecordByAge(IResource resource, string propertyName, ulong fromAge, ulong toAge)
+        {
+            var objectId = resource.Instance.Attributes["objectId"].ToString();
+
+            var record = this.database.GetCollection<BsonDocument>("record_" + objectId);
+            var builder = Builders<BsonDocument>.Filter;
+
+            var filter = builder.Gte("age", fromAge) & builder.Lte("age", toAge) & builder.Eq("property", propertyName);
+
+            var reply = new AsyncReply<PropertyValue[]>();
+
+            record.FindAsync(filter).ContinueWith((x) =>
+            {
+                var values = ((Task<IAsyncCursor<BsonDocument>>)x).Result.ToList();
+
+                var bag = new AsyncBag<object>();
+
+                foreach(var v in values)
+                    bag.Add(Parse(v["value"]));
+                
+                bag.Seal();
+
+                bag.Then((results) =>
+                {
+                    var list = new List<PropertyValue>();
+                    for(var i = 0; i < results.Length; i++)
+                        list.Add(new PropertyValue(results[i], (ulong)values[i]["age"].AsInt64, values[i]["date"].ToUniversalTime()));
+
+                    reply.Trigger(list.ToArray());
+                });
+
+            });
+
+            return reply;
+        }
+
+        public AsyncReply<PropertyValue[]> GetPropertyRecordByDate(IResource resource, string propertyName, DateTime fromDate, DateTime toDate)
+        {
+            var objectId = resource.Instance.Attributes["objectId"].ToString();
+
+            var record = this.database.GetCollection<BsonDocument>("record_" + objectId);
+            var builder = Builders<BsonDocument>.Filter;
+
+            var filter = builder.Gte("date", fromDate) & builder.Lte("date", toDate) & builder.Eq("property", propertyName);
+
+            var reply = new AsyncReply<PropertyValue[]>();
+
+            record.FindAsync(filter).ContinueWith((x) =>
+            {
+                var values = ((Task<IAsyncCursor<BsonDocument>>)x).Result.ToList();
+
+                var bag = new AsyncBag<object>();
+
+                foreach (var v in values)
+                    bag.Add(Parse(v["value"]));
+
+                bag.Seal();
+
+                bag.Then((results) =>
+                {
+                    var list = new List<PropertyValue>();
+                    for (var i = 0; i < results.Length; i++)
+                        list.Add(new PropertyValue(results[i], (ulong)values[i]["age"].AsInt64, values[i]["date"].ToUniversalTime()));
+
+                    reply.Trigger(list.ToArray());
+                });
+
+            });
+
+            return reply;
+        }
+
+        AsyncReply<KeyList<PropertyTemplate, PropertyValue[]>> GetRecordByAge(IResource resource, ulong fromAge, ulong toAge)
+        {
+            var properties = resource.Instance.Template.Properties.Where(x => x.Storage == StorageMode.Recordable).ToList();
+
+            var reply = new AsyncReply<KeyList<PropertyTemplate, PropertyValue[]>>();
+
+            AsyncBag<PropertyValue> bag = new AsyncBag<PropertyValue>();
+
+            foreach (var p in properties)
+                bag.Add(GetPropertyRecordByAge(resource, p.Name, fromAge, toAge));
+
+            bag.Seal();
+
+            bag.Then(x =>
+            {
+                var list = new KeyList<PropertyTemplate, PropertyValue>();
+
+                for (var i = 0; i < x.Length; i++)
+                    list.Add(properties[i], x[i]);
+
+                reply.Trigger(list);
+            });
+            
+            return reply;
+        }
+
+        public AsyncReply<KeyList<PropertyTemplate, PropertyValue[]>> GetRecord(IResource resource, DateTime fromDate, DateTime toDate)
+        {
+            var properties = resource.Instance.Template.Properties.Where(x => x.Storage == StorageMode.Recordable).ToList();
+
+            var reply = new AsyncReply<KeyList<PropertyTemplate, PropertyValue[]>>();
+
+            AsyncBag<PropertyValue[]> bag = new AsyncBag<PropertyValue[]>();
+
+            foreach (var p in properties)
+                bag.Add(GetPropertyRecordByDate(resource, p.Name, fromDate, toDate));
+
+            bag.Seal();
+
+            bag.Then(x =>
+            {
+                var list = new KeyList<PropertyTemplate, PropertyValue[]>();
+
+                for (var i = 0; i < x.Length; i++)
+                    list.Add(properties[i], x[i]);
+
+                reply.Trigger(list);
+            });
+
+            return reply;
+        }
+
+        public bool Modify(IResource resource, string propertyName, object value, ulong age, DateTime dateTime)
+        {
+            
+
+            var objectId = resource.Instance.Attributes["objectId"].ToString();
+
+            var filter = Builders<BsonDocument>.Filter.Eq("_id", new BsonObjectId(new ObjectId(objectId)));
+            var update = Builders<BsonDocument>.Update
+                .Set("values." + propertyName, new BsonDocument { { "age", BsonValue.Create(age) },
+                                     { "modification", dateTime },
+                                     { "value", Compose(value) } });
+
+            resourcesCollection.UpdateOne(filter, update);
+
+            return true;
 
         }
     }

Esiur/Data/AutoList.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -8,7 +32,7 @@ using System.Reflection;
 
 namespace Esiur.Data
 {
-    public class AutoList<T, ST> : IEnumerable
+    public class AutoList<T, ST> : IEnumerable<T>
     {
 
         private readonly object syncRoot = new object();        
@@ -45,6 +69,10 @@ namespace Esiur.Data
             list.Sort(comparer);
         }
 
+        public void Sort(Comparison<T> comparison)
+        {
+            list.Sort(comparison);
+        }
 
         public IEnumerable<T> Where(Func<T, bool> predicate)
         {
@@ -80,9 +108,9 @@ namespace Esiur.Data
         /// </summary>
         /// <param name="values">Populate the list with items</param>
         /// <returns></returns>
-        public AutoList(T[] values)
+        public AutoList(ST state, T[] values)
         {
-
+            this.state = state;
                 #if NETSTANDARD1_5
                             removableList = (typeof(IDestructible).GetTypeInfo().IsAssignableFrom(typeof(T).GetTypeInfo()));
                 #else
@@ -168,11 +196,6 @@ namespace Esiur.Data
             Remove((T)sender);
         }
         
-        public IEnumerator GetEnumerator()
-        {
-            return list.GetEnumerator();
-        }
-
         /// <summary>
         /// Clear the list
         /// </summary>
@@ -249,5 +272,15 @@ namespace Esiur.Data
                     return true;
             return false;
         }
+
+        public IEnumerator<T> GetEnumerator()
+        {
+            return ((IEnumerable<T>)list).GetEnumerator();
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return ((IEnumerable<T>)list).GetEnumerator();
+        }
     }
 }

Esiur/Data/BinaryList.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Data/Codec.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Text;
 using Esiur.Misc;
@@ -9,6 +33,7 @@ using Esiur.Net.IIP;
 using Esiur.Resource;
 using System.Linq;
 using System.Reflection;
+using Esiur.Resource.Template;
 
 namespace Esiur.Data
 {
@@ -98,13 +123,13 @@ namespace Esiur.Data
         public static byte[] ComposeStructureArray(Structure[] structures, DistributedConnection connection, bool prependLength = false)
         {
             if (structures == null || structures?.Length == 0)
-                return new byte[0];
+                return prependLength ? new byte[] { 0, 0, 0, 0 } : new byte[0];
  
             var rt = new BinaryList();
             var comparsion = StructureComparisonResult.Structure;
 
             rt.Append((byte)comparsion);
-            rt.Append(ComposeStructure(structures[0], connection));
+            rt.Append(ComposeStructure(structures[0], connection, true, true, true));
 
             for (var i = 1; i < structures.Length; i++)
             {
@@ -112,11 +137,11 @@ namespace Esiur.Data
                 rt.Append((byte)comparsion);
 
                 if (comparsion == StructureComparisonResult.Structure)
-                    rt.Append(ComposeStructure(structures[i], connection));
+                    rt.Append(ComposeStructure(structures[i], connection, true, true, true));
                 else if (comparsion == StructureComparisonResult.StructureSameKeys)
-                    rt.Append(ComposeStructure(structures[i], connection, false));
+                    rt.Append(ComposeStructure(structures[i], connection, false, true, true));
                 else if (comparsion == StructureComparisonResult.StructureSameTypes)
-                    rt.Append(ComposeStructure(structures[i], connection, false, false));
+                    rt.Append(ComposeStructure(structures[i], connection, false, false, true));
             }
 
             if (prependLength)
@@ -147,9 +172,10 @@ namespace Esiur.Data
             var result = (StructureComparisonResult)data[offset++];
 
             AsyncReply previous = null;
-            string[] previousKeys = null;
-            DataType[] previousTypes = null;
+           // string[] previousKeys = null;
+           // DataType[] previousTypes = null;
 
+            Structure.StructureMetadata metadata = new Structure.StructureMetadata();
 
 
             if (result == StructureComparisonResult.Null)
@@ -157,8 +183,8 @@ namespace Esiur.Data
             else if (result == StructureComparisonResult.Structure)
             {
                 uint cs = data.GetUInt32(offset);
-                cs += 4;
-                previous = ParseStructure(data, offset, cs, connection, out previousKeys, out previousTypes);
+                offset += 4;
+                previous = ParseStructure(data, offset, cs, connection, out metadata);
                 offset += cs;
             }
  
@@ -174,22 +200,22 @@ namespace Esiur.Data
                 else if (result == StructureComparisonResult.Structure)
                 {
                     uint cs = data.GetUInt32(offset);
-                    cs += 4;
-                    previous = ParseStructure(data, offset, cs, connection, out previousKeys, out previousTypes);
+                    offset += 4;
+                    previous = ParseStructure(data, offset, cs, connection, out metadata);// out previousKeys, out previousTypes);
                     offset += cs;
                 }
                 else if (result == StructureComparisonResult.StructureSameKeys)
                 {
                     uint cs = data.GetUInt32(offset);
-                    cs += 4;
-                    previous = ParseStructure(data, offset, cs, connection, out previousKeys, out previousTypes, previousKeys);
+                    offset += 4;
+                    previous = ParseStructure(data, offset, cs, connection, out metadata, metadata.Keys);
                     offset += cs;
                 }
                 else if (result == StructureComparisonResult.StructureSameTypes)
                 {
                     uint cs = data.GetUInt32(offset);
-                    cs += 4;
-                    previous = ParseStructure(data, offset, cs, connection, out previousKeys, out previousTypes, previousKeys, previousTypes);
+                    offset += 4;
+                    previous = ParseStructure(data, offset, cs, connection, out metadata, metadata.Keys, metadata.Types);
                     offset += cs;
                 }
 
@@ -243,9 +269,8 @@ namespace Esiur.Data
         /// <returns>Value</returns>
         public static AsyncReply<Structure> ParseStructure(byte[] data, uint offset, uint contentLength, DistributedConnection connection)
         {
-            string[] pk;
-            DataType[] pt;
-            return ParseStructure(data, offset, contentLength, connection, out pk, out pt);
+            Structure.StructureMetadata metadata;
+            return ParseStructure(data, offset, contentLength, connection, out metadata);
         }
 
         /// <summary>
@@ -260,7 +285,7 @@ namespace Esiur.Data
         /// <param name="keys">Array of keys, in case the data doesn't include keys</param>
         /// <param name="types">Array of DataTypes, in case the data doesn't include DataTypes</param>
         /// <returns>Structure</returns>
-        public static AsyncReply<Structure> ParseStructure(byte[] data, uint offset, uint length, DistributedConnection connection, out string[] parsedKeys, out DataType[] parsedTypes, string[] keys = null, DataType[] types = null)
+        public static AsyncReply<Structure> ParseStructure(byte[] data, uint offset, uint length, DistributedConnection connection, out Structure.StructureMetadata metadata, string[] keys = null, DataType[] types = null)// out string[] parsedKeys, out DataType[] parsedTypes, string[] keys = null, DataType[] types = null)
         {
             var reply = new AsyncReply<Structure>();
             var bag = new AsyncBag<object>();
@@ -293,8 +318,8 @@ namespace Esiur.Data
 
                     uint rt;
                     bag.Add(Codec.Parse(data, offset, out rt, connection));
-                    length -= rt + 1;
-                    offset += rt + 1;
+                    length -= rt;
+                    offset += rt;
                 }
             }
             else
@@ -324,8 +349,8 @@ namespace Esiur.Data
                 reply.Trigger(s);
             });
 
-            parsedKeys = keylist.ToArray();
-            parsedTypes = typelist.ToArray();
+            metadata = new Structure.StructureMetadata() { Keys = keylist.ToArray(), Types = typelist.ToArray() };
+
             return reply;
         }
 
@@ -544,7 +569,6 @@ namespace Esiur.Data
         {
             Null,
             Distributed,
-            DistributedSameClass,
             Local,
             Same
         }
@@ -585,21 +609,12 @@ namespace Esiur.Data
         {
             if (next == null)
                 return ResourceComparisonResult.Null;
-
-            if (next == initial)
+            else if (next == initial)
                 return ResourceComparisonResult.Same;
-
-            if (IsLocalResource(next, connection))
+            else if (IsLocalResource(next, connection))
                 return ResourceComparisonResult.Local;
-
-            if (initial == null)
+            else
                 return ResourceComparisonResult.Distributed;
-
-            if (initial.Instance.Template.ClassId == next.Instance.Template.ClassId)
-                return ResourceComparisonResult.DistributedSameClass;
-
-            return ResourceComparisonResult.Distributed;
-
         }
 
         /// <summary>
@@ -629,7 +644,7 @@ namespace Esiur.Data
         public static byte[] ComposeResourceArray(IResource[] resources, DistributedConnection connection, bool prependLength = false)
         {
             if (resources == null || resources?.Length == 0)
-                return new byte[0];
+                return prependLength ? new byte[] { 0, 0, 0, 0 } : new byte[0];
 
             var rt = new BinaryList();
             var comparsion = Compare(null, resources[0], connection);
@@ -639,26 +654,16 @@ namespace Esiur.Data
             if (comparsion == ResourceComparisonResult.Local)
                 rt.Append((resources[0] as DistributedResource).Id);
             else if (comparsion == ResourceComparisonResult.Distributed)
-            {
-                rt.Append(resources[0].Instance.Template.ClassId);
                 rt.Append(resources[0].Instance.Id);
-            }
             
             for (var i = 1; i < resources.Length; i++)
             {
                 comparsion = Compare(resources[i - 1], resources[i], connection);
                 rt.Append((byte)comparsion);
                 if (comparsion == ResourceComparisonResult.Local)
-                    rt.Append((resources[0] as DistributedResource).Id);
+                    rt.Append((resources[i] as DistributedResource).Id);
                 else if (comparsion == ResourceComparisonResult.Distributed)
-                {
-                    rt.Append(resources[0].Instance.Template.ClassId);
-                    rt.Append(resources[0].Instance.Id);
-                }
-                else if (comparsion == ResourceComparisonResult.DistributedSameClass)
-                {
-                    rt.Append(resources[0].Instance.Id);
-                }
+                    rt.Append(resources[i].Instance.Id);
             }
 
             if (prependLength)
@@ -690,7 +695,6 @@ namespace Esiur.Data
             var result = (ResourceComparisonResult)data[offset++];
 
             AsyncReply previous = null;
-            Guid previousGuid = Guid.Empty;
 
             if (result == ResourceComparisonResult.Null)
                 previous = new AsyncReply<IResource>(null);
@@ -701,9 +705,7 @@ namespace Esiur.Data
             }
             else if (result == ResourceComparisonResult.Distributed)
             {
-                previousGuid = data.GetGuid(offset);
-                offset += 16;
-                //previous = connection.Fetch(previousGuid, data.GetUInt32(offset));
+                previous = connection.Fetch(data.GetUInt32(offset));
                 offset += 4;
             }
 
@@ -714,32 +716,30 @@ namespace Esiur.Data
             {
                 result = (ResourceComparisonResult)data[offset++];
 
+                AsyncReply current = null;
+
                 if (result == ResourceComparisonResult.Null)
-                    previous = new AsyncReply<IResource>(null);
-                //else if (result == ResourceComparisonResult.Same)
-                //  reply.Add(previous);
+                {
+                    current = new AsyncReply<IResource>(null);
+                }
+                else if (result == ResourceComparisonResult.Same)
+                {
+                    current = previous;
+                }
                 else if (result == ResourceComparisonResult.Local)
                 {
-                    // overwrite previous
-                    previous = Warehouse.Get(data.GetUInt32(offset));
+                    current = Warehouse.Get(data.GetUInt32(offset));
                     offset += 4;
                 }
                 else if (result == ResourceComparisonResult.Distributed)
                 {
-                    // overwrite previous
-                    previousGuid = data.GetGuid(offset);
-                    offset += 16;
-                    //previous = connection.Fetch(previousGuid, data.GetUInt32(offset));
-                    offset += 4;
-                }
-                else if (result == ResourceComparisonResult.DistributedSameClass)
-                {
-                    // overwrite previous
-                    //previous = connection.Fetch(previousGuid, data.GetUInt32(offset));
+                    current = connection.Fetch(data.GetUInt32(offset));
                     offset += 4;
                 }
 
-                reply.Add(previous);
+                reply.Add(current);
+
+                previous = current;
             }
 
             reply.Seal();
@@ -763,7 +763,12 @@ namespace Esiur.Data
                 rt.InsertRange(0, DC.ToBytes(rt.Count));
             return rt.ToArray();
         }
-
+        /// <summary>
+        /// Parse an array of variables.
+        /// </summary>
+        /// <param name="data">Array of bytes.</param>
+        /// <param name="connection">DistributedConnection is required to fetch resources.</param>
+        /// <returns>Array of variables.</returns>
         public static AsyncBag<object> ParseVarArray(byte[] data, DistributedConnection connection)
         {
             return ParseVarArray(data, 0, (uint)data.Length, connection);
@@ -801,6 +806,180 @@ namespace Esiur.Data
             return rt;
         }
 
+        /// <summary>
+        /// Compose an array of property values.
+        /// </summary>
+        /// <param name="array">PropertyValue array.</param>
+        /// <param name="connection">DistributedConnection is required to check locality.</param>
+        /// <param name="prependLength">If True, prepend the length as UInt32 at the beginning of the output.</param>
+        /// <returns>Array of bytes in the network byte order.</returns>
+        /// //, bool includeAge = true
+        public static byte[] ComposePropertyValueArray(PropertyValue[] array, DistributedConnection connection, bool prependLength = false)
+        {
+            var rt = new List<byte>();
+            for (var i = 0; i < array.Length; i++)
+                rt.AddRange(ComposePropertyValue(array[i], connection));
+            if (prependLength)
+                rt.InsertRange(0, DC.ToBytes(rt.Count));
+            return rt.ToArray();
+        }
+
+        /// <summary>
+        /// Compose a property value.
+        /// </summary>
+        /// <param name="propertyValue">Property value</param>
+        /// <param name="connection">DistributedConnection is required to check locality.</param>
+        /// <returns>Array of bytes in the network byte order.</returns>
+        public static byte[] ComposePropertyValue(PropertyValue propertyValue, DistributedConnection connection)//, bool includeAge = true)
+        {
+            // age, date, value
+            //if (includeAge)
+                return BinaryList.ToBytes(propertyValue.Age, propertyValue.Date, Compose(propertyValue.Value, connection));
+            //else
+              //  return BinaryList.ToBytes(propertyValue.Date, Compose(propertyValue.Value, connection));
+
+        }
+
+
+        /// <summary>
+        /// Parse property value.
+        /// </summary>
+        /// <param name="data">Array of bytes.</param>
+        /// <param name="offset">Zero-indexed offset.</param>
+        /// <param name="connection">DistributedConnection is required to fetch resources.</param>
+        /// <param name="cs">Output content size.</param>
+         /// <returns>PropertyValue.</returns>
+        public static AsyncReply<PropertyValue> ParsePropertyValue(byte[] data, uint offset, out uint cs, DistributedConnection connection)//, bool ageIncluded = true)
+        {
+            var reply = new AsyncReply<PropertyValue>();
+
+            var age = data.GetUInt64(offset);
+            offset += 8;
+  
+            DateTime date = data.GetDateTime(offset);
+            offset += 8;
+
+            uint valueSize;
+
+            Parse(data, offset, out valueSize, connection).Then(value =>
+            {
+                reply.Trigger(new PropertyValue(value, age, date));
+            });
+
+            cs = 16 + valueSize;
+            return reply;
+        }
+
+        /// <summary>
+        /// Parse an array of PropertyValue.
+        /// </summary>
+        /// <param name="data">Array of bytes.</param>
+        /// <param name="connection">DistributedConnection is required to fetch resources.</param>
+        /// <returns>Array of variables.</returns>
+        public static AsyncBag<PropertyValue> ParsePropertyValueArray(byte[] data, DistributedConnection connection)
+        {
+            return ParsePropertyValueArray(data, 0, (uint)data.Length, connection);
+        }
+
+        /// <summary>
+        /// Parse resource history
+        /// </summary>
+        /// <param name="data">Array of bytes.</param>
+        /// <param name="offset">Zero-indexed offset.</param>
+        /// <param name="length">Number of bytes to parse.</param>
+        /// <param name="resource">Resource</param>
+        /// <param name="fromAge">Starting age.</param>
+        /// <param name="toAge">Ending age.</param>
+        /// <param name="connection">DistributedConnection is required to fetch resources.</param>
+        /// <returns></returns>
+        public static AsyncReply<KeyList<PropertyTemplate, PropertyValue[]>> ParseHistory(byte[] data, uint offset, uint length, IResource resource, DistributedConnection connection)
+        {
+            //var count = (int)toAge - (int)fromAge;
+
+            var list = new KeyList<PropertyTemplate, PropertyValue[]>();
+
+            var reply = new AsyncReply<KeyList<PropertyTemplate, PropertyValue[]>>();
+
+            var bagOfBags = new AsyncBag<PropertyValue[]>();
+
+            var ends = offset + length;
+            while (offset < ends)
+            {
+                var index = data[offset++];
+                var pt = resource.Instance.Template.GetPropertyTemplate(index);
+                list.Add(pt, null);
+                var cs = DC.GetUInt32(data, offset);
+                offset += 4;
+                bagOfBags.Add(ParsePropertyValueArray(data, offset, cs, connection));
+                offset += cs;
+            }
+
+            bagOfBags.Seal();
+
+            bagOfBags.Then(x =>
+            {
+                for(var i = 0; i < list.Count; i++)
+                    list[list.Keys.ElementAt(i)] = x[i];
+
+                reply.Trigger(list);
+            });
+
+            return reply;
+            
+        }
+
+        /// <summary>
+        /// Compose resource history
+        /// </summary>
+        /// <param name="history">History</param>
+        /// <param name="connection">DistributedConnection is required to fetch resources.</param>
+        /// <returns></returns>
+        public static byte[] ComposeHistory(KeyList<PropertyTemplate, PropertyValue[]> history, DistributedConnection  connection, bool prependLength = false)
+        {
+            var rt = new BinaryList();
+
+            for (var i = 0; i < history.Count; i++)
+                rt.Append((byte)history.Keys.ElementAt(i).Index, 
+                          ComposePropertyValueArray(history.Values.ElementAt(i), connection, true));
+
+            if (prependLength)
+                rt.Insert(0, (uint)rt.Length);
+
+            return rt.ToArray();
+        }
+
+        /// <summary>
+        /// Parse an array of PropertyValue.
+        /// </summary>
+        /// <param name="data">Array of bytes.</param>
+        /// <param name="offset">Zero-indexed offset.</param>
+        /// <param name="length">Number of bytes to parse.</param>
+        /// <param name="connection">DistributedConnection is required to fetch resources.</param>
+        /// <param name="ageIncluded">Whether property age is represented in the data.</param>
+        /// <returns></returns>
+        public static AsyncBag<PropertyValue> ParsePropertyValueArray(byte[] data, uint offset, uint length, DistributedConnection connection)//, bool ageIncluded = true)
+        {
+            var rt = new AsyncBag<PropertyValue>();
+
+            while (length > 0)
+            {
+                uint cs;
+
+                rt.Add(ParsePropertyValue(data, offset, out cs, connection));//, ageIncluded));
+
+                if (cs > 0)
+                {
+                    offset += (uint)cs;
+                    length -= (uint)cs;
+                }
+                else
+                    throw new Exception("Error while parsing ValueInfo structured data");
+            }
+
+            rt.Seal();
+            return rt;
+        }
+
         /// <summary>
         /// Compose a variable
         /// </summary>
@@ -811,6 +990,11 @@ namespace Esiur.Data
         public static byte[] Compose(object value, DistributedConnection connection, bool prependType = true)
         {
 
+            if (value is Func<DistributedConnection, object>)
+                value = (value as Func<DistributedConnection, object>)(connection);
+            else if (value is DistributedPropertyContext)
+                value = (value as DistributedPropertyContext).Method(connection);
+            
             var type = GetDataType(value, connection);
             var rt = new BinaryList();
 
@@ -873,11 +1057,15 @@ namespace Esiur.Data
         /// <param name="type">Sub-class type.</param>
         /// <param name="iface">Super-interface type.</param>
         /// <returns>True, if <paramref name="type"/> implements <paramref name="iface"/>.</returns>
-        private static bool ImplementsInterface(Type type, Type iface)
+        public static bool ImplementsInterface(Type type, Type iface)
         {
 
+          
             while (type != null)
             {
+                if (type == iface)
+                    return true;
+
 #if NETSTANDARD1_5
                 if (type.GetTypeInfo().GetInterfaces().Contains(iface))
                     return true;
@@ -977,7 +1165,7 @@ namespace Esiur.Data
                 }
             }
             else
-                return DataType.Void;
+                type = DataType.Void;
 
             
             if (isArray)

Esiur/Data/DataConverter.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -225,14 +249,14 @@ namespace Esiur.Data
             UInt64 rt = 0;
             byte* p = (byte*)&rt;
 
-            *(p + 7) = data[0];
-            *(p + 6) = data[1];
-            *(p + 5) = data[2];
-            *(p + 4) = data[3];
-            *(p + 3) = data[4];
-            *(p + 2) = data[5];
-            *(p + 1) = data[6];
-            *(p) = data[7];
+            *(p + 7) = data[offset++];
+            *(p + 6) = data[offset++];
+            *(p + 5) = data[offset++];
+            *(p + 4) = data[offset++];
+            *(p + 3) = data[offset++];
+            *(p + 2) = data[offset++];
+            *(p + 1) = data[offset++];
+            *(p) = data[offset++];
 
             return rt;
 
@@ -252,14 +276,14 @@ namespace Esiur.Data
             Int64 rt = 0;
             byte* p = (byte*)&rt;
 
-            *(p + 7) = data[0];
-            *(p + 6) = data[1];
-            *(p + 5) = data[2];
-            *(p + 4) = data[3];
-            *(p + 3) = data[4];
-            *(p + 2) = data[5];
-            *(p + 1) = data[6];
-            *(p) = data[7];
+            *(p + 7) = data[offset++];
+            *(p + 6) = data[offset++];
+            *(p + 5) = data[offset++];
+            *(p + 4) = data[offset++];
+            *(p + 3) = data[offset++];
+            *(p + 2) = data[offset++];
+            *(p + 1) = data[offset++];
+            *(p) = data[offset++];
 
             return rt;
 
@@ -311,14 +335,14 @@ namespace Esiur.Data
             double rt = 0;
             byte* p = (byte*)&rt;
 
-            *(p + 7) = data[0];
-            *(p + 6) = data[1];
-            *(p + 5) = data[2];
-            *(p + 4) = data[3];
-            *(p + 3) = data[4];
-            *(p + 2) = data[5];
-            *(p + 1) = data[6];
-            *(p) = data[7];
+            *(p + 7) = data[offset++];
+            *(p + 6) = data[offset++];
+            *(p + 5) = data[offset++];
+            *(p + 4) = data[offset++];
+            *(p + 3) = data[offset++];
+            *(p + 2) = data[offset++];
+            *(p + 1) = data[offset++];
+            *(p) = data[offset++];
 
             return rt;
         }
@@ -792,33 +816,48 @@ namespace Esiur.Data
             return rt.ToArray();
         }
 
-        public static byte[] ToBytes(int value)
+        public static unsafe byte[] ToBytes(int value)
         {
-            byte[] ret = BitConverter.GetBytes(value);
+            var rt = new byte[4];
+            byte* p = (byte*)&value;
 
-            Array.Reverse(ret);
+            rt[0] = *(p + 3);
+            rt[1] = *(p + 2);
+            rt[2] = *(p + 1);
+            rt[3] = *(p + 0);
 
-            return ret;
+            return rt;
         }
 
-        public static byte[] ToBytes(short value)
+        public static unsafe byte[] ToBytes(short value)
         {
-            byte[] ret = BitConverter.GetBytes(value);
+            var rt = new byte[2];
+            byte* p = (byte*)&value;
 
-            Array.Reverse(ret);
+            rt[0] = *(p + 1);
+            rt[1] = *(p + 0);
 
-            return ret;
+            return rt;
         }
 
-        public static byte[] ToBytes(float value)
+        public static unsafe byte[] ToBytes(float value)
+
         {
-            byte[] ret = BitConverter.GetBytes(value);
+            var rt = new byte[4];
 
-            Array.Reverse(ret);
+            //float rt = 0;
+            byte* p = (byte*)&value;
+            rt[0] = *(p + 3);
+            rt[1] = *(p + 2);
+            rt[2] = *(p + 1);
+            rt[3] = *(p);
 
-            return ret;
+            return rt;
         }
 
+
+   
+
         /*
         public static byte[] ToBytes(Structure[] values)
         {
@@ -888,58 +927,108 @@ namespace Esiur.Data
             return Encoding.UTF8.GetBytes(value);
         }
 
-        public static byte[] ToBytes(double value)
+        public unsafe static byte[] ToBytes(double value)
         {
-            byte[] ret = BitConverter.GetBytes(value);
+            var rt = new byte[8];
 
-            Array.Reverse(ret);
+            byte* p = (byte*)&value;
 
-            return ret;
+            rt[0] = *(p + 7);
+            rt[1] = *(p + 6);
+            rt[2] = *(p + 5);
+            rt[3] = *(p + 4);
+            rt[4] = *(p + 3);
+            rt[5] = *(p + 2);
+            rt[6] = *(p + 1);
+            rt[7] = *(p + 0);
+
+            return rt;
         }
 
-        public static byte[] ToBytes(long value)
+        public static unsafe byte[] ToBytes(long value)
         {
-            byte[] ret = BitConverter.GetBytes(value);
+            var rt = new byte[8];
 
-            Array.Reverse(ret);
+            byte* p = (byte*)&value;
+
+            rt[0] = *(p + 7);
+            rt[1] = *(p + 6);
+            rt[2] = *(p + 5);
+            rt[3] = *(p + 4);
+            rt[4] = *(p + 3);
+            rt[5] = *(p + 2);
+            rt[6] = *(p + 1);
+            rt[7] = *(p + 0);
+
+            return rt;
 
-            return ret;
         }
 
-        public static byte[] ToBytes(DateTime value)
+        public static unsafe byte[] ToBytes(DateTime value)
         {
-            byte[] ret = BitConverter.GetBytes(value.ToUniversalTime().Ticks);
-            Array.Reverse(ret);
-            return ret;
+
+            var rt = new byte[8];
+            var v = value.ToUniversalTime().Ticks;
+
+            byte* p = (byte*)&v;
+
+            rt[0] = *(p + 7);
+            rt[1] = *(p + 6);
+            rt[2] = *(p + 5);
+            rt[3] = *(p + 4);
+            rt[4] = *(p + 3);
+            rt[5] = *(p + 2);
+            rt[6] = *(p + 1);
+            rt[7] = *(p + 0);
+
+            return rt;
+
         }
 
 
-        public static byte[] ToBytes(ulong value)
+        public static unsafe byte[] ToBytes(ulong value)
         {
-            byte[] ret = BitConverter.GetBytes(value);
+            var rt = new byte[8];
 
-            Array.Reverse(ret);
+            byte* p = (byte*)&value;
 
-            return ret;
+            rt[0] = *(p + 7);
+            rt[1] = *(p + 6);
+            rt[2] = *(p + 5);
+            rt[3] = *(p + 4);
+            rt[4] = *(p + 3);
+            rt[5] = *(p + 2);
+            rt[6] = *(p + 1);
+            rt[7] = *(p + 0);
+
+            return rt;
         }
 
-        public static byte[] ToBytes(uint value)
+        public static unsafe byte[] ToBytes(uint value)
         {
 
-            byte[] ret = BitConverter.GetBytes(value);
+            var rt = new byte[4];
 
-            Array.Reverse(ret);
+            byte* p = (byte*)&value;
 
-            return ret;
+            rt[0] = *(p + 3);
+            rt[1] = *(p + 2);
+            rt[2] = *(p + 1);
+            rt[3] = *(p + 0);
+
+            return rt;
         }
 
-        public static byte[] ToBytes(ushort value)
+        public static unsafe byte[] ToBytes(ushort value)
         {
-            byte[] ret = BitConverter.GetBytes(value);
+            var rt = new byte[2];
 
-            Array.Reverse(ret);
+            byte* p = (byte*)&value;
 
-            return ret;
+            rt[0] = *(p + 1);
+            rt[1] = *(p);
+
+            return rt;
         }
 
         public static byte[] ToBytes(decimal value)

Esiur/Data/DataType.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Data/KeyList.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.IO;
 using System.Collections;
 using System.Security.Cryptography;
@@ -17,10 +41,10 @@ namespace Esiur.Data
         private readonly object syncRoot = new object();
         private Dictionary<KT, T> dic;
 
-        public delegate void Modified(KT key, T oldValue, T newValue);
-        public delegate void Added(T value);
-        public delegate void Removed(KT key, T value);
-        public delegate void Cleared();
+        public delegate void Modified(KT key, T oldValue, T newValue, KeyList<KT, T> sender);
+        public delegate void Added(T value, KeyList<KT, T> sender);
+        public delegate void Removed(KT key, T value, KeyList<KT, T> sender);
+        public delegate void Cleared(KeyList<KT, T> sender);
 
         public event Modified OnModified;
         public event Removed OnRemoved;
@@ -77,14 +101,14 @@ namespace Esiur.Data
                             ((IDestructible)oldValue).OnDestroy -= ItemDestroyed;
                     dic[key] = value;
                     if (OnModified != null)
-                        OnModified(key, oldValue, value);
+                        OnModified(key, oldValue, value, this);
                 }
                 else
                 {
                     dic.Add(key, value);
 
                     if (OnAdd != null)
-                        OnAdd(value);
+                        OnAdd(value, this);
                 }
             }
         }
@@ -136,7 +160,7 @@ namespace Esiur.Data
                 dic.Clear();
 
             if (OnCleared != null)
-                OnCleared();
+                OnCleared(this);
         }
 
         public Dictionary<KT, T>.KeyCollection Keys
@@ -167,7 +191,13 @@ namespace Esiur.Data
                 dic.Remove(key);
 
             if (OnRemoved != null)
-                OnRemoved(key, value);
+                OnRemoved(key, value, this);
+        }
+
+        public object Owner
+        {
+            get;
+            set;
         }
 
         public int Count
@@ -187,13 +217,16 @@ namespace Esiur.Data
             return dic.ContainsValue(Value);
         }
 
-        public KeyList()
+        
+        public KeyList(object owner = null)
         {
             #if NETSTANDARD1_5
                         removableList = (typeof(IDestructible).GetTypeInfo().IsAssignableFrom(typeof(T).GetTypeInfo()));
-            #else
+#else
                         removableList = (typeof(IDestructible).IsAssignableFrom(typeof(T)));
-            #endif
+#endif
+
+            this.Owner = owner;
 
             if (typeof(KT) == typeof(string))
                 dic = (Dictionary<KT, T>)(object)new Dictionary<string, T>(StringComparer.OrdinalIgnoreCase);

Esiur/Data/NotModified.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Data/PropertyValue.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Esiur.Data
+{
+    public class PropertyValue
+    {
+        /// <summary>
+        /// Get or set the value.
+        /// </summary>
+        public object Value { get; set; }
+        /// <summary>
+        /// Get or set date of modification or occurrence.
+        /// </summary>
+        public DateTime Date { get; set; }
+        /// <summary>
+        /// Get or set property age.
+        /// </summary>
+        public ulong Age { get; set; }
+
+        /// <summary>
+        /// Create an instance of PropertyValue.
+        /// </summary>
+        /// <param name="value">Value.</param>
+        /// <param name="age">Age.</param>
+        /// <param name="date">Date.</param>
+        public PropertyValue(object value, ulong age, DateTime date)
+        {
+            Value = value;
+            Age = age;
+            Date = date;
+        }
+    }
+}

Esiur/Data/StringKeyList.cs

@@ -1,10 +1,35 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.IO;
 using System.Collections;
 using System.Collections.Generic;
 using System.Security.Cryptography;
 using System.Text;
 using System.Reflection;
+using System.Linq;
 
 namespace Esiur.Data
 {
@@ -64,15 +89,16 @@ namespace Esiur.Data
             {
                 var key = Key.ToLower();
 
-                if (OnModified != null)
-                    OnModified(Key, value);
+                var toRemove = m_Variables.Where(x => x.Key.ToLower() == key);
 
+                foreach (var item in toRemove)
+                    m_Variables.Remove(item);
 
-                foreach (var kv in m_Variables)
-                    if (kv.Key.ToLower() == key)
-                        m_Variables.Remove(kv);
 
                 m_Variables.Add(new KeyValuePair<string, string>(Key, value));
+
+                OnModified?.Invoke(Key, value);
+
             }
         }
 

Esiur/Data/Structure.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
@@ -13,6 +37,12 @@ namespace Esiur.Data
     public class Structure : IEnumerable<KeyValuePair<string, object>>
     {
 
+        public struct StructureMetadata
+        {
+            public string[] Keys;
+            public DataType[] Types;
+        }
+
         private Dictionary<string, object> dic = new Dictionary<string, object>(StringComparer.OrdinalIgnoreCase);
         private object syncRoot = new object();
 
@@ -56,10 +86,10 @@ namespace Esiur.Data
             get { return syncRoot; }
         }
 
-        public string[] GetKeys()
-        {
-            return dic.Keys.ToArray();
-        }
+        public string[] GetKeys() => dic.Keys.ToArray();//GetKeys()
+        //{
+          //  return dic.Keys.ToArray();
+        //}
         
         public object this[string index]
         {

Esiur/Engine/AsyncBag.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -8,36 +32,54 @@ namespace Esiur.Engine
 {
     public class AsyncBag<T>:AsyncReply
     {
-        Dictionary<AsyncReply, T> results = new Dictionary<AsyncReply, T>();
+        //Dictionary<AsyncReply, T> results = new Dictionary<AsyncReply, T>();
+
+        List<AsyncReply> replies = new List<AsyncReply>();
+        List<T> results = new List<T>();
+
         int count = 0;
         bool sealedBag = false;
 
-        public void Then(Action<T[]> callback)
+        public AsyncBag<T> Then(Action<T[]> callback)
         {
             base.Then(new Action<object>(o => callback((T[])o)));
+            return this;
         }
 
         public void Seal()
         {
+            if (sealedBag)
+                return;
+
             sealedBag = true;
 
             if (results.Count == 0)
                 Trigger(new T[0]);
 
-            for(var i = 0; i < results.Count; i++)
+            for (var i = 0; i < results.Count; i++)
             //foreach(var reply in results.Keys)
-                results.Keys.ElementAt(i).Then((r) => {
-                    results[results.Keys.ElementAt(i)] = (T)r;
+            {
+                var k = replies[i];// results.Keys.ElementAt(i);
+                var index = i;
+
+                k.Then((r) =>
+                {
+                    results[index] = (T)r;
                     count++;
                     if (count == results.Count)
-                        Trigger(results.Values.ToArray());
+                        Trigger(results.ToArray());
                 });
+            }
         }
 
         public void Add(AsyncReply reply)
         {
             if (!sealedBag)
-                results.Add(reply, default(T));            
+            {
+                results.Add(default(T));
+                replies.Add(reply);
+            }
+                //results.Add(reply, default(T));            
         }
 
         public AsyncBag()

Esiur/Engine/AsyncException.cs

@@ -0,0 +1,85 @@
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Esiur.Engine
+{
+    public enum ExceptionCode : ushort
+    {
+        HostNotReachable,
+        AccessDenied,
+        ResourceNotFound,
+        AttachDenied,
+        InvalidMethod,
+        InvokeDenied,
+        CreateDenied,
+        AddParentDenied,
+        AddChildDenied,
+        ViewAttributeDenied,
+        UpdateAttributeDenied,
+        StoreNotFound,
+        ParentNotFound,
+        ChildNotFound,
+        ResourceIsNotStore,
+        DeleteDenied,
+        DeleteFailed,
+        UpdateAttributeFailed,
+        GetAttributesFailed,
+        ClearAttributesFailed,
+        TemplateNotFound,
+        RenameDenied,
+        ClassNotFound,
+        MethodNotFound,
+        PropertyNotFound,
+        SetPropertyDenied,
+        ReadOnlyProperty
+    }
+
+    public class AsyncException: Exception
+    {
+
+
+        AsyncReply.ErrorType type;
+        ExceptionCode code;
+
+        public AsyncReply.ErrorType Type => type;
+        public ExceptionCode Code => code;
+
+        public AsyncException(AsyncReply.ErrorType type, ushort code, string message)
+            : base(type == AsyncReply.ErrorType.Management ? ((ExceptionCode)code).ToString() : message)
+        {
+            this.type = type;
+            this.code = (ExceptionCode)code;
+
+        }
+
+        public override string ToString()
+        {
+            return code.ToString() + ": " + Message;
+        }
+    }
+}

Esiur/Engine/AsyncQueue.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -12,9 +36,11 @@ namespace Esiur.Engine
         //Action<T> callback;
         object queueLock = new object();
 
-        public void Then(Action<T> callback)
+        public AsyncQueue<T> Then(Action<T> callback)
         {
             base.Then(new Action<object>(o => callback((T)o)));
+
+            return this;
         }
 
         public void Add(AsyncReply<T> reply)

Esiur/Engine/AsyncReply.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -8,12 +32,34 @@ namespace Esiur.Engine
 {
     public class AsyncReply
     {
+        public enum ErrorType
+        {
+            Management,
+            Exception
+        }
+
+        public enum ProgressType
+        {
+            Execution,
+            Network,
+        }
+
         protected List<Action<object>> callbacks = new List<Action<object>>();
         protected object result;
+
+        protected List<Action<AsyncException>> errorCallbacks = new List<Action<AsyncException>>();
+
+        protected List<Action<ProgressType, int, int>> progressCallbacks = new List<Action<ProgressType, int, int>>();
+
+        protected List<Action<object>> chunkCallbacks = new List<Action<object>>();
+
         object callbacksLock = new object();
 
-        //bool fired = false;
         protected bool resultReady = false;
+        AsyncException exception;
+
+        TaskCompletionSource<object> tcs = new TaskCompletionSource<object>();
+
 
         public bool Ready
         {
@@ -25,40 +71,111 @@ namespace Esiur.Engine
             get { return result; }
         }
 
-        public void Then(Action<object> callback)
+        public AsyncReply Then(Action<object> callback)
         {
             callbacks.Add(callback);
 
             if (resultReady)
                 callback(result);
-            //    Trigger(this.result);
+
+            return this;
+        }
+
+        public AsyncReply Error(Action<AsyncException> callback)
+        {
+            errorCallbacks.Add(callback);
+
+            if (exception != null)
+            {
+                callback(exception);
+                tcs.SetException(exception);
+            }
+
+            return this;
+        }
+
+        public AsyncReply Progress(Action<ProgressType, int, int> callback)
+        {
+            progressCallbacks.Add(callback);
+            return this;
+        }
+
+        public AsyncReply Chunk(Action<object> callback)
+        {
+            chunkCallbacks.Add(callback);
+            return this;
         }
 
         public void Trigger(object result)
         {
-            //if (!fired)
-            //{
-            this.result = result;
-            resultReady = true;
 
             lock (callbacksLock)
             {
+                if (resultReady)
+                    return;
+
+                this.result = result;
+                resultReady = true;
+
                 foreach (var cb in callbacks)
                     cb(result);
-                //callbacks.Clear();
+
+                tcs.TrySetResult(result);
+
+            }
+
+        }
+
+        public void TriggerError(AsyncException exception)
+        {
+            if (resultReady)
+                return;
+
+            this.exception = exception;
+
+
+            lock (callbacksLock)
+            {
+                foreach (var cb in errorCallbacks)
+                    cb(exception);
+            }
+
+            tcs.TrySetException(exception);
+        }
+
+        public void TriggerProgress(ProgressType type, int value, int max)
+        {
+            if (resultReady)
+                return;
+
+            lock (callbacksLock)
+            {
+                foreach (var cb in progressCallbacks)
+                    cb(type, value, max);
+
+            }
+        }
+
+        public void TriggerChunk(object value)
+        {
+            if (resultReady)
+                return;
+
+            lock (callbacksLock)
+            {
+                foreach (var cb in chunkCallbacks)
+                    cb(value);
+
+            }
+        }
+
+
+        public Task Task
+        {
+            get
+            {
+                return tcs.Task;
             }
-            /*
-                if (callback == null)
-                {
-                    fireAtChance = true;
-                }
-                else
-                {
-                    callback(result);
-                    fired = true;
-                }
-                */
-            //}
         }
 
         public AsyncReply()
@@ -69,6 +186,7 @@ namespace Esiur.Engine
         public AsyncReply(object result)
         {
             resultReady = true;
+            tcs.SetResult(result);
             this.result = result;
         }
     }

Esiur/Engine/AsyncReplyGeneric.cs

@@ -1,17 +1,44 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using Esiur.Resource;
+using System.Reflection;
 
 namespace Esiur.Engine
 {
     public class AsyncReply<T>: AsyncReply
     {
-        public void Then(Action<T> callback)
+        
+        public AsyncReply<T> Then(Action<T> callback)
         {
            base.Then(new Action<object>(o => callback((T)o)));
+            return this;
         }
 
         public void Trigger(T result)
@@ -24,6 +51,22 @@ namespace Esiur.Engine
             
         }
 
+        public new Task<T> Task
+        {
+            get
+            {
+                return base.Task.ContinueWith<T>((t) =>
+                {
+
+#if NETSTANDARD1_5
+                    return (T)t.GetType().GetTypeInfo().GetProperty("Result").GetValue(t);
+#else
+                    return (T)t.GetType().GetProperty("Result").GetValue(t);
+#endif
+                });
+            }
+        }
+
         public AsyncReply(T result)
             : base(result)
         {

Esiur/Engine/IDestructible.cs

@@ -1,4 +1,27 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Engine/LogType.cs

@@ -1,4 +1,29 @@
-using System;
+
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Esiur.csproj

@@ -6,7 +6,7 @@
     <Copyright>Ahmed Kh. Zamil</Copyright>
     <PackageLicenseUrl>https://github.com/esiur/esiur-dotnet/blob/master/LICENSE</PackageLicenseUrl>
     <PackageProjectUrl>http://www.esiur.com</PackageProjectUrl>
-    <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
+    <GeneratePackageOnBuild>False</GeneratePackageOnBuild>
     <Version>1.0.0</Version>
     <RepositoryUrl>https://github.com/esiur/esiur-dotnet</RepositoryUrl>
     <Authors>Ahmed Kh. Zamil</Authors>

Esiur/Misc/Global.cs

@@ -1,3 +1,27 @@
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+
+*/
 using System;
 using System.IO;
 using System.Collections;
@@ -31,7 +55,7 @@ namespace Esiur.Misc
 
         public delegate void LogEvent(string service, LogType type, string message);
 
-        public static LogEvent SystemLog;
+        public static event LogEvent SystemLog;
 
         static Random random = new Random();
 
@@ -88,8 +112,7 @@ namespace Esiur.Misc
             //if (type != LogType.Debug)
             Console.WriteLine(service + " " + message);
 
-            if (SystemLog != null)
-                SystemLog(service, type, message);
+            SystemLog?.Invoke(service, type, message);
         }
 
         /*
@@ -398,8 +421,8 @@ namespace Esiur.Misc
                 Enumerable.Repeat(chars, length)
                           .Select(s => s[random.Next(s.Length)])
                           .ToArray());
-            if (result.Length < length)
-                Console.WriteLine();
+            //if (result.Length < length)
+              //  Console.WriteLine();
             return result;
             /*
             int len = 0;

Esiur/Net/DataLink/PacketFilter.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/DataLink/PacketServer.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/DataLink/PacketSource.cs

@@ -1,4 +1,28 @@
-using Esiur.Net.Packets;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Net.Packets;
 using System;
 using System.Collections.Generic;
 using System.Linq;

Esiur/Net/HTTP/HTTPConnection.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Diagnostics;
 using System.IO;
 using System.Net.Sockets;

Esiur/Net/HTTP/HTTPFilter.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Diagnostics;
 using System.IO;
 using System.Net.Sockets;

Esiur/Net/HTTP/HTTPServer.cs

@@ -1,3 +1,27 @@
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
 using System;
 using System.Diagnostics;
 using System.IO;
@@ -157,7 +181,7 @@ namespace Esiur.Net.HTTP
 
         protected override void ClientDisconnected(HTTPConnection sender)
         {
-            Console.WriteLine("OUT: " + this.Connections.Count);
+            //Console.WriteLine("OUT: " + this.Connections.Count);
 
             foreach (IResource resource in Instance.Children)
             {
@@ -369,7 +393,7 @@ namespace Esiur.Net.HTTP
             //sender.SessionEnded += SessionExpired;
             sender.SetParent(this);
 
-            Console.WriteLine("IN: " + this.Connections.Count);
+            //Console.WriteLine("IN: " + this.Connections.Count);
 
             foreach (IResource resource in Instance.Children)
             {

Esiur/Net/HTTP/HTTPSession.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Diagnostics;
 using System.IO;
 using System.Net.Sockets;
@@ -61,7 +85,7 @@ namespace Esiur.Net.HTTP
             OnEnd?.Invoke(this);
         }
 
-        void VariablesModified(string key, object oldValue, object newValue)
+        void VariablesModified(string key, object oldValue, object newValue, KeyList<string, object> sender)
         {
             OnModify?.Invoke(this, key, oldValue, newValue);
         }

Esiur/Net/HTTP/IIPoWS.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+
+*/
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -27,11 +51,21 @@ namespace Esiur.Net.HTTP
                         var httpServer = sender.Parent;
                         var iipServer = r as DistributedServer;
                         var tcpSocket = sender.Unassign();
+                        if (tcpSocket == null)
+                            return;
+
                         var wsSocket = new WSSocket(tcpSocket);
-                        httpServer.Connections.Remove(sender);
+                        httpServer.RemoveConnection(sender);
+
+                        //httpServer.Connections.Remove(sender);
                         var iipConnection = new DistributedConnection();
-                        iipConnection.Server = iipServer;
+  //                      iipConnection.OnReady += IipConnection_OnReady;
+//                        iipConnection.Server = iipServer;
+    //                    iipConnection.Assign(wsSocket);
+
+                        iipServer.AddConnection(iipConnection);
                         iipConnection.Assign(wsSocket);
+                        wsSocket.Begin();
                     }
                 });
 
@@ -41,6 +75,11 @@ namespace Esiur.Net.HTTP
             return false;
         }
 
+        private void IipConnection_OnReady(DistributedConnection sender)
+        {
+            Warehouse.Put(sender, sender.RemoteUsername, null, sender.Server);
+        }
+
         public override AsyncReply<bool> Trigger(ResourceTrigger trigger)
         {
             return new AsyncReply<bool>(true);

Esiur/Net/IIP/DistributedConnection.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Text;
 using System.Net;
@@ -14,6 +38,7 @@ using Esiur.Security.Authority;
 using Esiur.Resource.Template;
 using System.Linq;
 using System.Diagnostics;
+using static Esiur.Net.Packets.IIPPacket;
 
 namespace Esiur.Net.IIP
 {
@@ -35,35 +60,36 @@ namespace Esiur.Net.IIP
         IIPPacket packet = new IIPPacket();
         IIPAuthPacket authPacket = new IIPAuthPacket();
 
-        byte[] sessionId;
-        AuthenticationType hostType;
-        string domain;
-        string localUsername, remoteUsername;
-        byte[] localPassword;
+        Session session;
 
+        byte[] localPassword;
         byte[] localNonce, remoteNonce;
 
         bool ready, readyToEstablish;
 
         DateTime loginDate;
-        KeyList<string, object> variables = new KeyList<string, object>();
 
         /// <summary>
         /// Local username to authenticate ourselves.  
         /// </summary>
-        public string LocalUsername { get; set; }
+        public string LocalUsername => session.LocalAuthentication.Username;// { get; set; }
 
         /// <summary>
         /// Peer's username.
         /// </summary>
-        public string RemoteUsername { get; set; }
+        public string RemoteUsername => session.RemoteAuthentication.Username;// { get; set; }
 
         /// <summary>
         /// Working domain.
         /// </summary>
-        public string Domain { get { return domain; } }
+        //public string Domain { get { return domain; } }
 
 
+        /// <summary>
+        /// The session related to this connection.
+        /// </summary>
+        public Session Session => session;
+
         /// <summary>
         /// Distributed server responsible for this connection, usually for incoming connections.
         /// </summary>
@@ -73,14 +99,50 @@ namespace Esiur.Net.IIP
             set;
         }
 
+        public bool Remove(IResource resource)
+        {
+            // nothing to do
+            return true;
+        }
+
         /// <summary>
         /// Send data to the other end as parameters
         /// </summary>
         /// <param name="values">Values will be converted to bytes then sent.</param>
         internal void SendParams(params object[] values)
         {
-            var ar = BinaryList.ToBytes(values);
-            Send(ar);
+            var data = BinaryList.ToBytes(values);
+
+            if (ready)
+            {
+                var cmd = (IIPPacketCommand)(data[0] >> 6);
+
+                if (cmd == IIPPacketCommand.Event)
+                {
+                    var evt = (IIPPacketEvent)(data[0] & 0x3f);
+                    //Console.Write("Sent: " + cmd.ToString() + " " + evt.ToString());
+                }
+                else if (cmd == IIPPacketCommand.Report)
+                {
+                    var r = (IIPPacketReport)(data[0] & 0x3f);
+                    //Console.Write("Sent: " + cmd.ToString() + " " + r.ToString());
+
+                }
+                else
+                {
+                    var act = (IIPPacketAction)(data[0] & 0x3f);
+                    //Console.Write("Sent: " + cmd.ToString() + " " + act.ToString());
+
+                }
+
+                //foreach (var param in values)
+                //    Console.Write(", " + param);
+
+                //Console.WriteLine();
+            }
+
+
+            Send(data);
 
             //StackTrace stackTrace = new StackTrace(;
 
@@ -104,13 +166,7 @@ namespace Esiur.Net.IIP
         /// <summary>
         /// KeyList to store user variables related to this connection.
         /// </summary>
-        public KeyList<string, object> Variables
-        {
-            get
-            {
-                return variables;
-            }
-        }
+        public KeyList<string, object> Variables { get; } = new KeyList<string, object>();
 
         /// <summary>
         /// IResource interface.
@@ -129,12 +185,17 @@ namespace Esiur.Net.IIP
         {
             base.Assign(socket);
 
+            session.RemoteAuthentication.Source.Attributes.Add(SourceAttributeType.IPv4, socket.RemoteEndPoint.Address);
+            session.RemoteAuthentication.Source.Attributes.Add(SourceAttributeType.Port, socket.RemoteEndPoint.Port);
+            session.LocalAuthentication.Source.Attributes.Add(SourceAttributeType.IPv4, socket.LocalEndPoint.Address);
+            session.LocalAuthentication.Source.Attributes.Add(SourceAttributeType.Port, socket.LocalEndPoint.Port);
 
-            if (hostType == AuthenticationType.Client)
+            if (session.LocalAuthentication.Type == AuthenticationType.Client)
             {
                 // declare (Credentials -> No Auth, No Enctypt)
-                var un = DC.ToBytes(localUsername);
-                var dmn = DC.ToBytes(domain);
+ 
+                var un = DC.ToBytes(session.LocalAuthentication.Username);
+                var dmn = DC.ToBytes(session.LocalAuthentication.Domain);// domain);
 
                 if (socket.State == SocketState.Established)
                 {
@@ -160,10 +221,14 @@ namespace Esiur.Net.IIP
         /// <param name="password">Password.</param>
         public DistributedConnection(ISocket socket, string domain, string username, string password)
         {
+            this.session = new Session(   new ClientAuthentication()
+                                        , new HostAuthentication());
             //Instance.Name = Global.GenerateCode(12);
-            this.hostType = AuthenticationType.Client;
-            this.domain = domain;
-            this.localUsername = username;
+            //this.hostType = AuthenticationType.Client;
+            //this.domain = domain;
+            //this.localUsername = username;
+            session.LocalAuthentication.Domain = domain;
+            session.LocalAuthentication.Username = username;
             this.localPassword = DC.ToBytes(password);
 
             init();
@@ -178,6 +243,7 @@ namespace Esiur.Net.IIP
         {
             //myId = Global.GenerateCode(12);
             // localParams.Host = DistributedParameters.HostType.Host;
+            session = new Session(new HostAuthentication(), new ClientAuthentication());
             init();
         }
 
@@ -185,7 +251,7 @@ namespace Esiur.Net.IIP
 
         public string Link(IResource resource)
         {
-            if (resource is DistributedConnection)
+            if (resource is DistributedResource)
             {
                 var r = resource as DistributedResource;
                 if (r.Instance.Store == this)
@@ -203,7 +269,7 @@ namespace Esiur.Net.IIP
                 if (x.Type == DistributedResourceQueueItem.DistributedResourceQueueItemType.Event)
                     x.Resource._EmitEventByIndex(x.Index, (object[])x.Value);
                 else
-                    x.Resource.UpdatePropertyByIndex(x.Index, x.Value);
+                    x.Resource._UpdatePropertyByIndex(x.Index, x.Value);
             });
 
             var r = new Random();
@@ -213,279 +279,420 @@ namespace Esiur.Net.IIP
 
 
 
+        private uint processPacket(byte[] msg, uint offset, uint ends, NetworkBuffer data, int chunkId)
+        {
+            var packet = new IIPPacket();
+
+            
+
+            // packets++;
+
+            if (ready)
+            {
+                var rt = packet.Parse(msg, offset, ends);
+                //Console.WriteLine("Rec: " + chunkId + " " + packet.ToString());
+                
+                /*
+                if (packet.Command == IIPPacketCommand.Event)
+                    Console.WriteLine("Rec: " + packet.Command.ToString() + " " + packet.Event.ToString());
+                else if (packet.Command == IIPPacketCommand.Report)
+                    Console.WriteLine("Rec: " + packet.Command.ToString() + " " + packet.Report.ToString());
+                else
+                    Console.WriteLine("Rec: " + packet.Command.ToString() + " " + packet.Action.ToString() + " " + packet.ResourceId + " " + offset + "/" + ends);
+                  */
+                  
+
+                //packs.Add(packet.Command.ToString() + " " + packet.Action.ToString() + " " + packet.Event.ToString());
+
+                //if (packs.Count > 1)
+                  //  Console.WriteLine("P2");
+
+                if (rt <= 0)
+                {
+                    var size = ends - offset;
+                    data.HoldFor(msg, offset, size, size + (uint)(-rt));
+                    return ends;
+                }
+                else
+                {
+                    offset += (uint)rt;
+
+                    if (packet.Command == IIPPacket.IIPPacketCommand.Event)
+                    {
+                        switch (packet.Event)
+                        {
+                            case IIPPacket.IIPPacketEvent.ResourceReassigned:
+                                IIPEventResourceReassigned(packet.ResourceId, packet.NewResourceId);
+                                break;
+                            case IIPPacket.IIPPacketEvent.ResourceDestroyed:
+                                IIPEventResourceDestroyed(packet.ResourceId);
+                                break;
+                            case IIPPacket.IIPPacketEvent.PropertyUpdated:
+                                IIPEventPropertyUpdated(packet.ResourceId, packet.MethodIndex, packet.Content);
+                                break;
+                            case IIPPacket.IIPPacketEvent.EventOccurred:
+                                IIPEventEventOccurred(packet.ResourceId, packet.MethodIndex, packet.Content);
+                                break;
+
+                            case IIPPacketEvent.ChildAdded:
+                                IIPEventChildAdded(packet.ResourceId, packet.ChildId);
+                                break;
+                            case IIPPacketEvent.ChildRemoved:
+                                IIPEventChildRemoved(packet.ResourceId, packet.ChildId);
+                                break;
+                            case IIPPacketEvent.Renamed:
+                                IIPEventRenamed(packet.ResourceId, packet.Content);
+                                break;
+                            case IIPPacketEvent.AttributesUpdated:
+                                IIPEventAttributesUpdated(packet.ResourceId, packet.Content);
+                                break;
+                        }
+                    }
+                    else if (packet.Command == IIPPacket.IIPPacketCommand.Request)
+                    {
+                        switch (packet.Action)
+                        {
+                            // Manage
+                            case IIPPacket.IIPPacketAction.AttachResource:
+                                IIPRequestAttachResource(packet.CallbackId, packet.ResourceId);
+                                break;
+                            case IIPPacket.IIPPacketAction.ReattachResource:
+                                IIPRequestReattachResource(packet.CallbackId, packet.ResourceId, packet.ResourceAge);
+                                break;
+                            case IIPPacket.IIPPacketAction.DetachResource:
+                                IIPRequestDetachResource(packet.CallbackId, packet.ResourceId);
+                                break;
+                            case IIPPacket.IIPPacketAction.CreateResource:
+                                IIPRequestCreateResource(packet.CallbackId, packet.StoreId, packet.ResourceId, packet.Content);
+                                break;
+                            case IIPPacket.IIPPacketAction.DeleteResource:
+                                IIPRequestDeleteResource(packet.CallbackId, packet.ResourceId);
+                                break;
+                            case IIPPacketAction.AddChild:
+                                IIPRequestAddChild(packet.CallbackId, packet.ResourceId, packet.ChildId);
+                                break;
+                            case IIPPacketAction.RemoveChild:
+                                IIPRequestRemoveChild(packet.CallbackId, packet.ResourceId, packet.ChildId);
+                                break;
+                            case IIPPacketAction.RenameResource:
+                                IIPRequestRenameResource(packet.CallbackId, packet.ResourceId, packet.Content);
+                                break;
+
+                            // Inquire
+                            case IIPPacket.IIPPacketAction.TemplateFromClassName:
+                                IIPRequestTemplateFromClassName(packet.CallbackId, packet.ClassName);
+                                break;
+                            case IIPPacket.IIPPacketAction.TemplateFromClassId:
+                                IIPRequestTemplateFromClassId(packet.CallbackId, packet.ClassId);
+                                break;
+                            case IIPPacket.IIPPacketAction.TemplateFromResourceId:
+                                IIPRequestTemplateFromResourceId(packet.CallbackId, packet.ResourceId);
+                                break;
+                            case IIPPacketAction.QueryLink:
+                                IIPRequestQueryResources(packet.CallbackId, packet.ResourceLink);
+                                break;
+
+                            case IIPPacketAction.ResourceChildren:
+                                IIPRequestResourceChildren(packet.CallbackId, packet.ResourceId);
+                                break;
+                            case IIPPacketAction.ResourceParents:
+                                IIPRequestResourceParents(packet.CallbackId, packet.ResourceId);
+                                break;
+                            
+                            case IIPPacket.IIPPacketAction.ResourceHistory:
+                                IIPRequestInquireResourceHistory(packet.CallbackId, packet.ResourceId, packet.FromDate, packet.ToDate);
+                                break;
+
+                            // Invoke
+                            case IIPPacket.IIPPacketAction.InvokeFunction:
+                                IIPRequestInvokeFunction(packet.CallbackId, packet.ResourceId, packet.MethodIndex, packet.Content);
+                                break;
+                            case IIPPacket.IIPPacketAction.GetProperty:
+                                IIPRequestGetProperty(packet.CallbackId, packet.ResourceId, packet.MethodIndex);
+                                break;
+                            case IIPPacket.IIPPacketAction.GetPropertyIfModified:
+                                IIPRequestGetPropertyIfModifiedSince(packet.CallbackId, packet.ResourceId, packet.MethodIndex, packet.ResourceAge);
+                                break;
+                            case IIPPacket.IIPPacketAction.SetProperty:
+                                IIPRequestSetProperty(packet.CallbackId, packet.ResourceId, packet.MethodIndex, packet.Content);
+                                break;
+
+                            // Attribute
+                            case IIPPacketAction.GetAllAttributes:
+                                IIPRequestGetAttributes(packet.CallbackId, packet.ResourceId, packet.Content, true);
+                                break;
+                            case IIPPacketAction.UpdateAllAttributes:
+                                IIPRequestUpdateAttributes(packet.CallbackId, packet.ResourceId, packet.Content, true);
+                                break;
+                            case IIPPacketAction.ClearAllAttributes:
+                                IIPRequestClearAttributes(packet.CallbackId, packet.ResourceId, packet.Content, true);
+                                break;
+                            case IIPPacketAction.GetAttributes:
+                                IIPRequestGetAttributes(packet.CallbackId, packet.ResourceId, packet.Content, false);
+                                break;
+                            case IIPPacketAction.UpdateAttributes:
+                                IIPRequestUpdateAttributes(packet.CallbackId, packet.ResourceId, packet.Content, false);
+                                break;
+                            case IIPPacketAction.ClearAttributes:
+                                IIPRequestClearAttributes(packet.CallbackId, packet.ResourceId, packet.Content, false);
+                                break;
+                        }
+                    }
+                    else if (packet.Command == IIPPacket.IIPPacketCommand.Reply)
+                    {
+                        switch (packet.Action)
+                        {
+                            // Manage
+                            case IIPPacket.IIPPacketAction.AttachResource:
+                                IIPReply(packet.CallbackId, packet.ClassId, packet.ResourceAge, packet.ResourceLink, packet.Content);
+                                break;
+
+                            case IIPPacket.IIPPacketAction.ReattachResource:
+                                IIPReply(packet.CallbackId, packet.ResourceAge, packet.Content);
+
+                                break;
+                            case IIPPacket.IIPPacketAction.DetachResource:
+                                IIPReply(packet.CallbackId);
+                                break;
+
+                            case IIPPacket.IIPPacketAction.CreateResource:
+                                IIPReply(packet.CallbackId, packet.ResourceId);
+                                break;
+
+                            case IIPPacket.IIPPacketAction.DeleteResource:
+                            case IIPPacketAction.AddChild:
+                            case IIPPacketAction.RemoveChild:
+                            case IIPPacketAction.RenameResource:
+                                IIPReply(packet.CallbackId);
+                                break;
+
+                           // Inquire
+
+                            case IIPPacket.IIPPacketAction.TemplateFromClassName:
+                            case IIPPacket.IIPPacketAction.TemplateFromClassId:
+                            case IIPPacket.IIPPacketAction.TemplateFromResourceId:
+                                IIPReply(packet.CallbackId, ResourceTemplate.Parse(packet.Content));
+                                break;
+
+                            case IIPPacketAction.QueryLink:
+                            case IIPPacketAction.ResourceChildren:
+                            case IIPPacketAction.ResourceParents:
+                            case IIPPacketAction.ResourceHistory:
+                                IIPReply(packet.CallbackId, packet.Content);
+                                break;
+
+                            // Invoke
+                            case IIPPacket.IIPPacketAction.InvokeFunction:
+                                IIPReplyInvoke(packet.CallbackId, packet.Content);
+
+                                break;
+                            case IIPPacket.IIPPacketAction.GetProperty:
+                                IIPReply(packet.CallbackId, packet.Content);
+                                break;
+
+                            case IIPPacket.IIPPacketAction.GetPropertyIfModified:
+                                IIPReply(packet.CallbackId, packet.Content);
+                                break;
+                            case IIPPacket.IIPPacketAction.SetProperty:
+                                IIPReply(packet.CallbackId);
+                                break;
+
+                            // Attribute
+                            case IIPPacketAction.GetAllAttributes:
+                            case IIPPacketAction.GetAttributes:
+                                IIPReply(packet.CallbackId, packet.Content);
+                                break;
+
+                            case IIPPacketAction.UpdateAllAttributes:
+                            case IIPPacketAction.UpdateAttributes:
+                            case IIPPacketAction.ClearAllAttributes:
+                            case IIPPacketAction.ClearAttributes:
+                                IIPReply(packet.CallbackId);
+                                break;
+
+                        }
+
+                    }
+                    else if (packet.Command == IIPPacketCommand.Report)
+                    {
+                        switch (packet.Report)
+                        {
+                            case IIPPacketReport.ManagementError:
+                                IIPReportError(packet.CallbackId, AsyncReply.ErrorType.Management, packet.ErrorCode, null);
+                                break;
+                            case IIPPacketReport.ExecutionError:
+                                IIPReportError(packet.CallbackId, AsyncReply.ErrorType.Exception, packet.ErrorCode, packet.ErrorMessage);
+                                break;
+                            case IIPPacketReport.ProgressReport:
+                                IIPReportProgress(packet.CallbackId, AsyncReply.ProgressType.Execution, packet.ProgressValue, packet.ProgressMax);
+                                break;
+                            case IIPPacketReport.ChunkStream:
+                                IIPReportChunk(packet.CallbackId, packet.Content);
+
+                                break;
+                        }
+                    }
+                }
+            }
+
+            else
+            {
+                var rt = authPacket.Parse(msg, offset, ends);
+
+                //Console.WriteLine(session.LocalAuthentication.Type.ToString() + " " + offset + " " + ends + " " + rt + " " + authPacket.ToString());
+
+                if (rt <= 0)
+                {
+                    data.HoldFor(msg, ends + (uint)(-rt));
+                    return ends;
+                }
+                else
+                {
+                    offset += (uint)rt;
+
+                    if (session.LocalAuthentication.Type == AuthenticationType.Host)
+                    {
+                        if (authPacket.Command == IIPAuthPacket.IIPAuthPacketCommand.Declare)
+                        {
+                            if (authPacket.RemoteMethod == IIPAuthPacket.IIPAuthPacketMethod.Credentials && authPacket.LocalMethod == IIPAuthPacket.IIPAuthPacketMethod.None)
+                            {
+                                Server.Membership.UserExists(authPacket.RemoteUsername, authPacket.Domain).Then(x =>
+                                {
+                                    if (x)
+                                    {
+                                        session.RemoteAuthentication.Username = authPacket.RemoteUsername;
+                                        remoteNonce = authPacket.RemoteNonce;
+                                        session.RemoteAuthentication.Domain = authPacket.Domain;
+                                        SendParams((byte)0xa0, localNonce);
+                                    }
+                                    else
+                                    {
+                                        //Console.WriteLine("User not found");
+                                        SendParams((byte)0xc0, (byte)1, (ushort)14, DC.ToBytes("User not found"));
+                                    }
+                                });
+
+                            }
+                        }
+                        else if (authPacket.Command == IIPAuthPacket.IIPAuthPacketCommand.Action)
+                        {
+                            if (authPacket.Action == IIPAuthPacket.IIPAuthPacketAction.AuthenticateHash)
+                            {
+                                var remoteHash = authPacket.Hash;
+
+                                Server.Membership.GetPassword(session.RemoteAuthentication.Username,
+                                                              session.RemoteAuthentication.Domain).Then((pw) =>
+                                                              {
+                                                                  if (pw != null)
+                                                                  {
+                                                                      var hashFunc = SHA256.Create();
+                                                                      var hash = hashFunc.ComputeHash(BinaryList.ToBytes(pw, remoteNonce, localNonce));
+                                                                      if (hash.SequenceEqual(remoteHash))
+                                                                      {
+                                                                              // send our hash
+                                                                              var localHash = hashFunc.ComputeHash(BinaryList.ToBytes(localNonce, remoteNonce, pw));
+
+                                                                          SendParams((byte)0, localHash);
+
+                                                                          readyToEstablish = true;
+                                                                      }
+                                                                      else
+                                                                      {
+                                                                          Global.Log("auth", LogType.Warning, "U:" + RemoteUsername + " IP:" + Socket.RemoteEndPoint.Address.ToString() + " S:DENIED");
+                                                                          //Console.WriteLine("Incorrect password");
+                                                                          SendParams((byte)0xc0, (byte)1, (ushort)5, DC.ToBytes("Error"));
+                                                                      }
+                                                                  }
+                                                              });
+                            }
+                            else if (authPacket.Action == IIPAuthPacket.IIPAuthPacketAction.NewConnection)
+                            {
+                                if (readyToEstablish)
+                                {
+                                    var r = new Random();
+                                    session.Id = new byte[32];
+                                    r.NextBytes(session.Id);
+                                    SendParams((byte)0x28, session.Id);
+                                    ready = true;
+                                    OnReady?.Invoke(this);
+                                    Server.Membership.Login(session);
+
+                                    Global.Log("auth", LogType.Warning, "U:" + RemoteUsername + " IP:" + Socket.RemoteEndPoint.Address.ToString() + " S:AUTH");
+
+                                }
+                            }
+                        }
+                    }
+                    else if (session.LocalAuthentication.Type == AuthenticationType.Client)
+                    {
+                        if (authPacket.Command == IIPAuthPacket.IIPAuthPacketCommand.Acknowledge)
+                        {
+                            remoteNonce = authPacket.RemoteNonce;
+
+                            // send our hash
+                            var hashFunc = SHA256.Create();
+                            var localHash = hashFunc.ComputeHash(BinaryList.ToBytes(localPassword, localNonce, remoteNonce));
+
+                            SendParams((byte)0, localHash);
+                        }
+                        else if (authPacket.Command == IIPAuthPacket.IIPAuthPacketCommand.Action)
+                        {
+                            if (authPacket.Action == IIPAuthPacket.IIPAuthPacketAction.AuthenticateHash)
+                            {
+                                // check if the server knows my password
+                                var hashFunc = SHA256.Create();
+                                var remoteHash = hashFunc.ComputeHash(BinaryList.ToBytes(remoteNonce, localNonce, localPassword));
+
+                                if (remoteHash.SequenceEqual(authPacket.Hash))
+                                {
+                                    // send establish request
+                                    SendParams((byte)0x20, (ushort)0);
+                                }
+                                else
+                                {
+                                    SendParams((byte)0xc0, 1, (ushort)5, DC.ToBytes("Error"));
+                                }
+                            }
+                            else if (authPacket.Action == IIPAuthPacket.IIPAuthPacketAction.ConnectionEstablished)
+                            {
+                                session.Id = authPacket.SessionId;
+
+                                ready = true;
+                                OnReady?.Invoke(this);
+
+                            }
+                        }
+                        else if (authPacket.Command == IIPAuthPacket.IIPAuthPacketCommand.Error)
+                        {
+                            OnError?.Invoke(this, authPacket.ErrorCode, authPacket.ErrorMessage);
+                            Close();
+                        }
+                    }
+                }
+            }
+
+            return offset;
+
+            //if (offset < ends)
+              //  processPacket(msg, offset, ends, data, chunkId);
+        }
+
         protected override void DataReceived(NetworkBuffer data)
         {
             // Console.WriteLine("DR " + hostType + " " + data.Available + " " + RemoteEndPoint.ToString());
             var msg = data.Read();
             uint offset = 0;
             uint ends = (uint)msg.Length;
+ 
+            var packs = new List<string>();
+
+            var chunkId = (new Random()).Next(1000, 1000000);
+
+            
+
             while (offset < ends)
             {
-
-                if (ready)
-                {
-                    var rt = packet.Parse(msg, offset, ends);
-                    if (rt <= 0)
-                    {
-                        data.HoldFor(msg, offset, ends - offset, (uint)(-rt));
-                        return;
-                    }
-                    else
-                    {
-                        offset += (uint)rt;
-
-                        if (packet.Command == IIPPacket.IIPPacketCommand.Event)
-                        {
-                            switch (packet.Event)
-                            {
-                                case IIPPacket.IIPPacketEvent.ResourceReassigned:
-                                    IIPEventResourceReassigned(packet.ResourceId, packet.NewResourceId);
-                                    break;
-                                case IIPPacket.IIPPacketEvent.ResourceDestroyed:
-                                    IIPEventResourceDestroyed(packet.ResourceId);
-                                    break;
-                                case IIPPacket.IIPPacketEvent.PropertyUpdated:
-                                    IIPEventPropertyUpdated(packet.ResourceId, packet.MethodIndex, packet.Content);
-                                    break;
-                                case IIPPacket.IIPPacketEvent.EventOccured:
-                                    IIPEventEventOccured(packet.ResourceId, packet.MethodIndex, packet.Content);
-                                    break;
-                            }
-                        }
-                        else if (packet.Command == IIPPacket.IIPPacketCommand.Request)
-                        {
-                            switch (packet.Action)
-                            {
-                                case IIPPacket.IIPPacketAction.AttachResource:
-                                    IIPRequestAttachResource(packet.CallbackId, packet.ResourceId);
-                                    break;
-                                case IIPPacket.IIPPacketAction.ReattachResource:
-                                    IIPRequestReattachResource(packet.CallbackId, packet.ResourceId, packet.ResourceAge);
-                                    break;
-                                case IIPPacket.IIPPacketAction.DetachResource:
-                                    IIPRequestDetachResource(packet.CallbackId, packet.ResourceId);
-                                    break;
-                                case IIPPacket.IIPPacketAction.CreateResource:
-                                    IIPRequestCreateResource(packet.CallbackId, packet.ClassName);
-                                    break;
-                                case IIPPacket.IIPPacketAction.DeleteResource:
-                                    IIPRequestDeleteResource(packet.CallbackId, packet.ResourceId);
-                                    break;
-                                case IIPPacket.IIPPacketAction.TemplateFromClassName:
-                                    IIPRequestTemplateFromClassName(packet.CallbackId, packet.ClassName);
-                                    break;
-                                case IIPPacket.IIPPacketAction.TemplateFromClassId:
-                                    IIPRequestTemplateFromClassId(packet.CallbackId, packet.ClassId);
-                                    break;
-                                case IIPPacket.IIPPacketAction.TemplateFromResourceLink:
-                                    IIPRequestTemplateFromResourceLink(packet.CallbackId, packet.ResourceLink);
-                                    break;
-                                case IIPPacket.IIPPacketAction.TemplateFromResourceId:
-                                    IIPRequestTemplateFromResourceId(packet.CallbackId, packet.ResourceId);
-                                    break;
-                                case IIPPacket.IIPPacketAction.ResourceIdFromResourceLink:
-                                    IIPRequestResourceIdFromResourceLink(packet.CallbackId, packet.ResourceLink);
-                                    break;
-                                case IIPPacket.IIPPacketAction.InvokeFunction:
-                                    IIPRequestInvokeFunction(packet.CallbackId, packet.ResourceId, packet.MethodIndex, packet.Content);
-                                    break;
-                                case IIPPacket.IIPPacketAction.GetProperty:
-                                    IIPRequestGetProperty(packet.CallbackId, packet.ResourceId, packet.MethodIndex);
-                                    break;
-                                case IIPPacket.IIPPacketAction.GetPropertyIfModified:
-                                    IIPRequestGetPropertyIfModifiedSince(packet.CallbackId, packet.ResourceId, packet.MethodIndex, packet.ResourceAge);
-                                    break;
-                                case IIPPacket.IIPPacketAction.SetProperty:
-                                    IIPRequestSetProperty(packet.CallbackId, packet.ResourceId, packet.MethodIndex, packet.Content);
-                                    break;
-                            }
-                        }
-                        else if (packet.Command == IIPPacket.IIPPacketCommand.Reply)
-                        {
-                            switch (packet.Action)
-                            {
-                                case IIPPacket.IIPPacketAction.AttachResource:
-                                    IIPReply(packet.CallbackId, packet.ClassId, packet.ResourceAge, packet.ResourceLink, packet.Content);
-
-                                    //IIPReplyAttachResource(packet.CallbackId, packet.ResourceAge, Codec.ParseValues(packet.Content));
-                                    break;
-                                case IIPPacket.IIPPacketAction.ReattachResource:
-                                    //IIPReplyReattachResource(packet.CallbackId, packet.ResourceAge, Codec.ParseValues(packet.Content));
-                                    IIPReply(packet.CallbackId, packet.ResourceAge, packet.Content);
-
-                                    break;
-                                case IIPPacket.IIPPacketAction.DetachResource:
-                                    //IIPReplyDetachResource(packet.CallbackId);
-                                    IIPReply(packet.CallbackId);
-                                    break;
-                                case IIPPacket.IIPPacketAction.CreateResource:
-                                    //IIPReplyCreateResource(packet.CallbackId, packet.ClassId, packet.ResourceId);
-                                    IIPReply(packet.CallbackId, packet.ClassId, packet.ResourceId);
-                                    break;
-                                case IIPPacket.IIPPacketAction.DeleteResource:
-                                    //IIPReplyDeleteResource(packet.CallbackId);
-                                    IIPReply(packet.CallbackId);
-                                    break;
-                                case IIPPacket.IIPPacketAction.TemplateFromClassName:
-                                    //IIPReplyTemplateFromClassName(packet.CallbackId, ResourceTemplate.Parse(packet.Content));
-                                    IIPReply(packet.CallbackId, ResourceTemplate.Parse(packet.Content));
-                                    break;
-                                case IIPPacket.IIPPacketAction.TemplateFromClassId:
-                                    //IIPReplyTemplateFromClassId(packet.CallbackId, ResourceTemplate.Parse(packet.Content));
-                                    IIPReply(packet.CallbackId, ResourceTemplate.Parse(packet.Content));
-                                    break;
-                                case IIPPacket.IIPPacketAction.TemplateFromResourceLink:
-                                    //IIPReplyTemplateFromResourceLink(packet.CallbackId, ResourceTemplate.Parse(packet.Content));
-                                    IIPReply(packet.CallbackId, ResourceTemplate.Parse(packet.Content));
-                                    break;
-                                case IIPPacket.IIPPacketAction.TemplateFromResourceId:
-                                    //IIPReplyTemplateFromResourceId(packet.CallbackId, ResourceTemplate.Parse(packet.Content));
-                                    IIPReply(packet.CallbackId, ResourceTemplate.Parse(packet.Content));
-                                    break;
-                                case IIPPacket.IIPPacketAction.ResourceIdFromResourceLink:
-                                    //IIPReplyResourceIdFromResourceLink(packet.CallbackId, packet.ClassId, packet.ResourceId, packet.ResourceAge);
-                                    IIPReply(packet.CallbackId, packet.ClassId, packet.ResourceId, packet.ResourceAge);
-                                    break;
-                                case IIPPacket.IIPPacketAction.InvokeFunction:
-                                    //IIPReplyInvokeFunction(packet.CallbackId, Codec.Parse(packet.Content, 0));
-                                    IIPReply(packet.CallbackId, packet.Content);
-                                    break;
-                                case IIPPacket.IIPPacketAction.GetProperty:
-                                    //IIPReplyGetProperty(packet.CallbackId, Codec.Parse(packet.Content, 0));
-                                    IIPReply(packet.CallbackId, packet.Content);
-                                    break;
-                                case IIPPacket.IIPPacketAction.GetPropertyIfModified:
-                                    //IIPReplyGetPropertyIfModifiedSince(packet.CallbackId, Codec.Parse(packet.Content, 0));
-                                    IIPReply(packet.CallbackId, packet.Content);
-                                    break;
-                                case IIPPacket.IIPPacketAction.SetProperty:
-                                    //IIPReplySetProperty(packet.CallbackId);
-                                    IIPReply(packet.CallbackId);
-                                    break;
-                            }
-
-                        }
-
-                    }
-                }
-
-                else
-                {
-                    var rt = authPacket.Parse(msg, offset, ends);
-
-                    Console.WriteLine(hostType.ToString() + " " + offset + " " + ends + " " + rt + " " + authPacket.ToString());
-
-                    if (rt <= 0)
-                    {
-                        data.HoldFor(msg, ends + (uint)(-rt));
-                        return;
-                    }
-                    else
-                    {
-                        offset += (uint)rt;
-
-                        if (hostType == AuthenticationType.Host)
-                        {
-                            if (authPacket.Command == IIPAuthPacket.IIPAuthPacketCommand.Declare)
-                            {
-                                if (authPacket.RemoteMethod == IIPAuthPacket.IIPAuthPacketMethod.Credentials && authPacket.LocalMethod == IIPAuthPacket.IIPAuthPacketMethod.None)
-                                {
-                                    remoteUsername = authPacket.RemoteUsername;
-                                    remoteNonce = authPacket.RemoteNonce;
-                                    domain = authPacket.Domain;
-                                    SendParams((byte)0xa0, localNonce);
-                                }
-                            }
-                            else if (authPacket.Command == IIPAuthPacket.IIPAuthPacketCommand.Action)
-                            {
-                                if (authPacket.Action == IIPAuthPacket.IIPAuthPacketAction.AuthenticateHash)
-                                {
-                                    var remoteHash = authPacket.Hash;
-
-                                    Server.Membership.GetPassword(remoteUsername, domain).Then((pw) =>
-                                    {
-
-
-                                        if (pw != null)
-                                        {
-                                            var hashFunc = SHA256.Create();
-                                            var hash = hashFunc.ComputeHash(BinaryList.ToBytes(pw, remoteNonce, localNonce));
-                                            if (hash.SequenceEqual(remoteHash))
-                                            {
-                                                // send our hash
-                                                var localHash = hashFunc.ComputeHash(BinaryList.ToBytes(localNonce, remoteNonce, pw));
-
-                                                SendParams((byte)0, localHash);
-
-                                                readyToEstablish = true;
-                                            }
-                                            else
-                                            {
-                                                Console.WriteLine("Incorrect password");
-                                                SendParams((byte)0xc0, (byte)1, (ushort)5, DC.ToBytes("Error"));
-                                            }
-                                        }
-                                    });
-                                }
-                                else if (authPacket.Action == IIPAuthPacket.IIPAuthPacketAction.NewConnection)
-                                {
-                                    if (readyToEstablish)
-                                    {
-                                        var r = new Random();
-                                        sessionId = new byte[32];
-                                        r.NextBytes(sessionId);
-                                        SendParams((byte)0x28, sessionId);
-                                        ready = true;
-                                        OnReady?.Invoke(this);
-                                    }
-                                }
-                            }
-                        }
-                        else if (hostType == AuthenticationType.Client)
-                        {
-                            if (authPacket.Command == IIPAuthPacket.IIPAuthPacketCommand.Acknowledge)
-                            {
-                                remoteNonce = authPacket.RemoteNonce;
-
-                                // send our hash
-                                var hashFunc = SHA256.Create();
-                                var localHash = hashFunc.ComputeHash(BinaryList.ToBytes(localPassword, localNonce, remoteNonce));
-
-                                SendParams((byte)0, localHash);
-                            }
-                            else if (authPacket.Command == IIPAuthPacket.IIPAuthPacketCommand.Action)
-                            {
-                                if (authPacket.Action == IIPAuthPacket.IIPAuthPacketAction.AuthenticateHash)
-                                {
-                                    // check if the server knows my password
-                                    var hashFunc = SHA256.Create();
-                                    var remoteHash = hashFunc.ComputeHash(BinaryList.ToBytes(remoteNonce, localNonce, localPassword));
-
-                                    if (remoteHash.SequenceEqual(authPacket.Hash))
-                                    {
-                                        // send establish request
-                                        SendParams((byte)0x20, (ushort)0);
-                                    }
-                                    else
-                                    {
-                                        SendParams((byte)0xc0, 1, (ushort)5, DC.ToBytes("Error"));
-                                    }
-                                }
-                                else if (authPacket.Action == IIPAuthPacket.IIPAuthPacketAction.ConnectionEstablished)
-                                {
-                                    sessionId = authPacket.SessionId;
-                                    ready = true;
-                                    OnReady?.Invoke(this);
-                                }
-                            }
-                            else if (authPacket.Command == IIPAuthPacket.IIPAuthPacketCommand.Error)
-                            {
-                                OnError?.Invoke(this, authPacket.ErrorCode, authPacket.ErrorMessage);
-                                Close();
-                            }
-                        }
-                    }
-                }
+                offset = processPacket(msg, offset, ends, data, chunkId);
             }
 
         }
@@ -510,5 +717,17 @@ namespace Esiur.Net.IIP
             resources.Add(Convert.ToUInt32(resource.Instance.Name), (DistributedResource)resource);
             return true;
         }
+
+        public bool Record(IResource resource, string propertyName, object value, ulong age, DateTime dateTime)
+        {
+            // nothing to do
+            return true;
+        }
+
+        public bool Modify(IResource resource, string propertyName, object value, ulong age, DateTime dateTime)
+        {
+            // nothing to do
+            return true;
+        }
     }
 }

Esiur/Net/IIP/DistributedPropertyContext.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Esiur.Net.IIP
+{
+    public class DistributedPropertyContext
+    {
+        public object Value { get; private set; }
+        public DistributedConnection Connection { get; private set; }
+        public Func<DistributedConnection, object> Method { get; private set; }
+
+        public DistributedPropertyContext(DistributedConnection connection, object value)
+        {
+            this.Value = value;
+            this.Connection = connection;
+        }
+
+        public DistributedPropertyContext(Func<DistributedConnection, object> method)
+        {
+            this.Method = method;
+        }
+    }
+}

Esiur/Net/IIP/DistributedResource.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Text;
 using System.Reflection;
@@ -41,12 +65,12 @@ namespace Esiur.Net.IIP
         //Structure properties = new Structure();
 
         string link;
-        uint age;
-        uint[] ages;
+        //ulong age;
+        //ulong[] ages;
         object[] properties;
         DistributedResourceEvent[] events;
 
-        ResourceTemplate template;
+        //ResourceTemplate template;
 
  
         //DistributedResourceStack stack;
@@ -54,13 +78,23 @@ namespace Esiur.Net.IIP
  
         bool destroyed;
 
+        /*
+        Dictionary<AsyncReply, object> afterAttachmentTriggers = new Dictionary<AsyncReply, object>();
+
+        internal void AddAfterAttachement(AsyncReply trigger, object value)
+        {
+            afterAttachmentTriggers.Add(trigger, value);
+        }
+        */
+
+
         /// <summary>
         /// Resource template for the remotely located resource.
         /// </summary>
-        public ResourceTemplate Template
-        {
-            get { return template; }
-        }
+        //public ResourceTemplate Template
+        //{
+        //    get { return template; }
+        //}
 
 
         /// <summary>
@@ -132,13 +166,15 @@ namespace Esiur.Net.IIP
             /// <param name="template">Resource template.</param>
             /// <param name="instanceId">Instance Id given by the other end.</param>
             /// <param name="age">Resource age.</param>
-        public DistributedResource(DistributedConnection connection, ResourceTemplate template, uint instanceId, uint age, string link)
+        public DistributedResource(DistributedConnection connection, uint instanceId, ulong age, string link)
         {
             this.link = link;
             this.connection = connection;
             this.instanceId = instanceId;
-            this.template = template;
-            this.age = age;
+            //this.Instance.Template = template;
+            //this.Instance.Age = age;
+            //this.template = template;
+            //this.age = age;
         }
 
         internal void _Ready()
@@ -146,26 +182,56 @@ namespace Esiur.Net.IIP
             isReady = true;
         }
 
-        internal bool _Attached(object[] properties)
+        /// <summary>
+        /// Export all properties with ResourceProperty attributed as bytes array.
+        /// </summary>
+        /// <returns></returns>
+        internal PropertyValue[] _Serialize()
         {
 
+            var props = new PropertyValue[properties.Length];
+
+
+            for (byte i = 0; i < properties.Length; i++)
+                props[i] = new PropertyValue(properties[i], Instance.GetAge(i), Instance.GetModificationDate(i));
+
+            return props;
+        }
+
+        internal bool _Attached(PropertyValue[] properties)
+        {
             if (isAttached)
                 return false;
             else
             {
-                this.properties = properties;
-                ages = new uint[properties.Length];
-                this.events = new DistributedResourceEvent[template.Events.Length];
+                this.properties = new object[properties.Length];
+
+                this.events = new DistributedResourceEvent[Instance.Template.Events.Length];
+
+                for (byte i = 0; i < properties.Length; i++)
+                {
+                    Instance.SetAge(i, properties[i].Age);
+                    Instance.SetModificationDate(i, properties[i].Date);
+                    this.properties[i] = properties[i].Value;
+                }
+
+                // trigger holded events/property updates.
+                //foreach (var r in afterAttachmentTriggers)
+                //    r.Key.Trigger(r.Value);
+
+                //afterAttachmentTriggers.Clear();
+
                 isAttached = true;
+
             }
            return true;
         }
 
         internal void _EmitEventByIndex(byte index, object[] args)
         {
-            var et = template.GetEventTemplate(index);
+            var et = Instance.Template.GetEventTemplate(index);
             events[index]?.Invoke(this, args);
-            Instance.EmitResourceEvent(et.Name, null, args);
+            Instance.EmitResourceEvent(null, null, et.Name, args);
         }
 
         public AsyncReply _Invoke(byte index, object[] args)
@@ -173,29 +239,37 @@ namespace Esiur.Net.IIP
             if (destroyed)
                 throw new Exception("Trying to access destroyed object");
 
-            if (index >= template.Functions.Length)
+            if (index >= Instance.Template.Functions.Length)
                 throw new Exception("Function index is incorrect");
 
-            var reply = new AsyncReply();
+            // var reply = new AsyncReply();
 
-            var parameters = Codec.ComposeVarArray(args, connection, true);
-            connection.SendRequest(Packets.IIPPacket.IIPPacketAction.InvokeFunction, instanceId, index, parameters).Then((res) =>
+            return connection.SendInvoke(instanceId, index, args);
+
+            //var parameters = Codec.ComposeVarArray(args, connection, true);
+            //return connection.SendRequest(Packets.IIPPacket.IIPPacketAction.InvokeFunction, instanceId, index, parameters);
+            
+            /*.Then((res) =>
             {
                 Codec.Parse((byte[])res[0], 0, connection).Then((rt) =>
                 {
                     reply.Trigger(rt);
                 });
-            });
+            }).Error((ex) => {
+                reply.TriggerError(ex);
+            }).Progress((t, pv, pm)=> {
+                reply.TriggerProgress(t, pv, pm);
+            }).Chunk(v => reply.TriggerChunk(v));
 
  
             return reply;
-
+            */
         }
 
  
         public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result)
         {
-            var ft = template.GetFunctionTemplate(binder.Name);
+            var ft = Instance.Template.GetFunctionTemplate(binder.Name);
 
             var reply = new AsyncReply();
 
@@ -233,7 +307,7 @@ namespace Esiur.Net.IIP
             if (!isAttached)
                 return false;
 
-            var pt = template.GetPropertyTemplate(binder.Name);
+            var pt = Instance.Template.GetPropertyTemplate(binder.Name);
 
             if (pt != null)
             {
@@ -242,7 +316,7 @@ namespace Esiur.Net.IIP
             }
             else
             {
-                var et = template.GetEventTemplate(binder.Name);
+                var et = Instance.Template.GetEventTemplate(binder.Name);
                 if (et == null)
                     return false;
 
@@ -253,11 +327,11 @@ namespace Esiur.Net.IIP
         }
 
 
-        internal void UpdatePropertyByIndex(byte index, object value)
+        internal void _UpdatePropertyByIndex(byte index, object value)
         {
-            var pt = template.GetPropertyTemplate(index);
+            var pt = Instance.Template.GetPropertyTemplate(index);
             properties[index] = value;
-            Instance.Modified(pt.Name, value);
+            Instance.EmitModification(pt, value);
         }
 
         /// <summary>
@@ -277,9 +351,8 @@ namespace Esiur.Net.IIP
             connection.SendRequest(Packets.IIPPacket.IIPPacketAction.SetProperty, instanceId, index, parameters).Then((res) =>
             {
                 // not really needed, server will always send property modified, this only happens if the programmer forgot to emit in property setter
-                //Update(index, value);
+                properties[index] = value;
                 reply.Trigger(null);
-                // nothing to do here
             });
 
             return reply;
@@ -293,8 +366,7 @@ namespace Esiur.Net.IIP
             if (!isAttached)
                 return false;
 
-            var pt = template.GetPropertyTemplate(binder.Name);
-
+            var pt = Instance.Template.GetPropertyTemplate(binder.Name);
  
             if (pt != null)
             {
@@ -303,7 +375,7 @@ namespace Esiur.Net.IIP
             }
             else
             {
-                var et = template.GetEventTemplate(binder.Name);
+                var et = Instance.Template.GetEventTemplate(binder.Name);
                 if (et == null)
                     return false;
 

Esiur/Net/IIP/DistributedResourceEvent.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/IIP/DistributedResourceQueueItem.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/IIP/DistributedServer.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -16,39 +40,40 @@ namespace Esiur.Net.IIP
     public class DistributedServer : NetworkServer<DistributedConnection>, IResource
     {
 
-        [Storable]
-        [ResourceProperty]
+        //[Storable]
+        //[ResourceProperty]
         public string ip
         {
             get;
             set;
         }
 
-        [Storable]
-        [ResourceProperty]
+        //[Storable]
+        //[ResourceProperty]
         public IMembership Membership
         {
             get;
             set;
         }
-        [Storable]
-        [ResourceProperty]
+
+        //[Storable]
+        //[ResourceProperty]
         public ushort port
         {
             get;
             set;
         }
 
-        [Storable]
-        [ResourceProperty]
+        //[Storable]
+        //[ResourceProperty]
         public uint timeout
         {
             get;
             set;
         }
         
-        [Storable]
-        [ResourceProperty]
+        //[Storable]
+        //[ResourceProperty]
         public uint clock
         {
             get;
@@ -94,24 +119,45 @@ namespace Esiur.Net.IIP
         {
             //throw new NotImplementedException();
  
-         }
+        }
 
         private void SessionModified(DistributedConnection Session, string Key, object NewValue)
         {
 
         }
 
-
-
         protected override void ClientConnected(DistributedConnection sender)
         {
-            Console.WriteLine("DistributedConnection Client Connected");
-            sender.Server = this;
-         }
+            //Console.WriteLine("DistributedConnection Client Connected");
+            
+        }
+
+        private void Sender_OnReady(DistributedConnection sender)
+        {
+            Warehouse.Put(sender, sender.LocalUsername, null, this);
+        }
+
+        public override void RemoveConnection(DistributedConnection connection)
+        {
+            connection.OnReady -= Sender_OnReady;
+            //connection.Server = null;
+            base.RemoveConnection(connection);
+        }
+
+        public override void AddConnection(DistributedConnection connection)
+        {
+            connection.OnReady += Sender_OnReady;
+            connection.Server = this;
+            base.AddConnection(connection);
+        }
 
         protected override void ClientDisconnected(DistributedConnection sender)
         {
-          Console.WriteLine("DistributedConnection Client Disconnected");
+            sender.Destroy();
+
+            Warehouse.Remove(sender);
+
+            //Console.WriteLine("DistributedConnection Client Disconnected");
         }
     }
 }

Esiur/Net/IIP/DistributedSession.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Text;
 using Esiur.Net.Sockets;

Esiur/Net/NetworkBuffer.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -14,6 +38,13 @@ namespace Esiur.Net
         uint neededDataLength = 0;
         //bool trim;
 
+        object syncLock = new object();
+
+        //public object SyncLock
+        //{
+          //  get { return syncLock; }
+        //}
+
         public NetworkBuffer()
         {
             data = new byte[0];
@@ -62,16 +93,19 @@ namespace Esiur.Net
 
         public void HoldFor(byte[] src, uint offset, uint size, uint needed)
         {
-            if (size >= needed)
-                throw new Exception("Size >= Needed !");
+            lock (syncLock)
+            {
+                if (size >= needed)
+                    throw new Exception("Size >= Needed !");
 
-            //trim = true;
-            data = DC.Combine(src, offset, size, data, 0, (uint)data.Length);
-            neededDataLength = needed;
+                //trim = true;
+                data = DC.Combine(src, offset, size, data, 0, (uint)data.Length);
+                neededDataLength = needed;
 
-            // Console.WriteLine("Hold StackTrace: '{0}'", Environment.StackTrace);
+                // Console.WriteLine("Hold StackTrace: '{0}'", Environment.StackTrace);
 
-            Console.WriteLine("Holded {0} {1} {2} {3} - {4}", offset, size, needed, data.Length, GetHashCode());
+                //Console.WriteLine("Holded {0} {1} {2} {3} - {4}", offset, size, needed, data.Length, GetHashCode());
+            }
         }
 
         public void HoldFor(byte[] src, uint needed)
@@ -104,7 +138,11 @@ namespace Esiur.Net
 
         public void Write(byte[] src, uint offset, uint length)
         {
-            DC.Append(ref data, src, offset, length);
+            //if (data.Length > 0)
+              //  Console.WriteLine();
+
+            lock(syncLock)
+                DC.Append(ref data, src, offset, length);
         }
 
         public bool CanRead
@@ -122,46 +160,49 @@ namespace Esiur.Net
 
         public byte[] Read()
         {
-            if (data.Length == 0)
-                return null;
-
-            byte[] rt = null;
-
-            if (neededDataLength == 0)
+            lock (syncLock)
             {
-                rt = data;
-                data = new byte[0];
-            }
-            else
-            {
-                //Console.WriteLine("P STATE:" + data.Length + " " + neededDataLength);
+                if (data.Length == 0)
+                    return null;
 
-                if (data.Length >= neededDataLength)
+                byte[] rt = null;
+
+                if (neededDataLength == 0)
                 {
-                    //Console.WriteLine("data.Length >= neededDataLength " + data.Length + " >= " + neededDataLength + " " + trim);
-
-                    //if (trim)
-                    //{
-                    //  rt = DC.Clip(data, 0, neededDataLength);
-                    //  data = DC.Clip(data, neededDataLength, (uint)data.Length - neededDataLength);
-                    //}
-                    //else
-                    //{
-                    // return all data
                     rt = data;
                     data = new byte[0];
-                    //}
-
-                    neededDataLength = 0;
-                    return rt;
                 }
                 else
                 {
-                    return null;
-                }
-            }
+                    //Console.WriteLine("P STATE:" + data.Length + " " + neededDataLength);
 
-            return rt;
+                    if (data.Length >= neededDataLength)
+                    {
+                        //Console.WriteLine("data.Length >= neededDataLength " + data.Length + " >= " + neededDataLength + " " + trim);
+
+                        //if (trim)
+                        //{
+                        //  rt = DC.Clip(data, 0, neededDataLength);
+                        //  data = DC.Clip(data, neededDataLength, (uint)data.Length - neededDataLength);
+                        //}
+                        //else
+                        //{
+                        // return all data
+                        rt = data;
+                        data = new byte[0];
+                        //}
+
+                        neededDataLength = 0;
+                        return rt;
+                    }
+                    else
+                    {
+                        return null;
+                    }
+                }
+
+                return rt;
+           }
         }
     }
 }

Esiur/Net/NetworkConnection.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.IO;
 using System.Net.Sockets;
 using System.Text;
@@ -29,7 +53,9 @@ namespace Esiur.Net
         public event DataReceivedEvent OnDataReceived;
         public event ConnectionClosedEvent OnClose;
         public event DestroyedEvent OnDestroy;
+        object receivingLock = new object();
 
+        bool processing = false;
 
 
         public void Destroy()
@@ -62,8 +88,8 @@ namespace Esiur.Net
             socket.OnReceive += Socket_OnReceive;
             socket.OnClose += Socket_OnClose;
             socket.OnConnect += Socket_OnConnect;
-            if (socket.State == SocketState.Established)
-                socket.Begin();
+            //if (socket.State == SocketState.Established)
+            //    socket.Begin();
         }
 
         private void Socket_OnConnect()
@@ -90,8 +116,23 @@ namespace Esiur.Net
 
                 lastAction = DateTime.Now;
 
-                while (buffer.Available > 0 && !buffer.Protected)
-                    DataReceived(buffer);
+                if (!processing)
+                {
+                    processing = true;
+
+                    try
+                    {
+                        //lock(buffer.SyncLock)
+                        while (buffer.Available > 0 && !buffer.Protected)
+                            DataReceived(buffer);
+                    }
+                    catch
+                    {
+
+                    }
+
+                    processing = false;
+                }
                 
             }
             catch (Exception ex)
@@ -234,9 +275,9 @@ namespace Esiur.Net
                     sock.Send(msg);
                 }
             }
-            catch
+            catch (Exception ex)
             {
-
+                Console.WriteLine(ex.ToString());
             }
         }
 

Esiur/Net/NetworkServer.cs

@@ -1,3 +1,27 @@
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
 using System;
 using System.Threading;
 using System.Collections.Generic;
@@ -10,7 +34,6 @@ using System.Threading.Tasks;
 
 namespace Esiur.Net
 {
-    //public abstract class NetworkServer<TConnection, TSession> : IResource where TSession : NetworkSession, new() where TConnection : NetworkConnection<TSession>, new()
 
     public abstract class NetworkServer<TConnection>: IDestructible where TConnection : NetworkConnection, new()
     {
@@ -25,8 +48,6 @@ namespace Esiur.Net
         protected abstract void ClientConnected(TConnection sender);
         protected abstract void ClientDisconnected(TConnection sender);
 
-       // private int port;
-       // private IPAddress ip = null;
 
         private uint timeout;
         private Timer timer;
@@ -201,7 +222,7 @@ namespace Esiur.Net
                   //  Thread.Sleep(100);
                 //}
 
-                Console.WriteLine("Listener stopped");
+                //Console.WriteLine("Listener stopped");
 
                 var cons = connections.ToArray();
 
@@ -211,14 +232,13 @@ namespace Esiur.Net
                         con.Close();
                 //}
 
-                Console.WriteLine("Sockets Closed");
+                //Console.WriteLine("Sockets Closed");
 
-                while (connections.Count > 0)
-                {
-                    Console.WriteLine("Waiting... " + connections.Count);
-                    
-                    //Thread.Sleep(1000);
-                }
+                //while (connections.Count > 0)
+                //{
+                //    Console.WriteLine("Waiting... " + connections.Count);  
+                //    Thread.Sleep(1000);
+                //}
 
             }
             finally
@@ -228,6 +248,21 @@ namespace Esiur.Net
         }
 
 
+        public virtual void RemoveConnection(TConnection connection)
+        {
+            connection.OnDataReceived -= OnDataReceived;
+            connection.OnConnect -= OnClientConnect;
+            connection.OnClose -= OnClientClose;
+            connections.Remove(connection);
+        }
+
+        public virtual void AddConnection(TConnection connection)
+        {
+            connection.OnDataReceived += OnDataReceived;
+            connection.OnConnect += OnClientConnect;
+            connection.OnClose += OnClientClose;
+            connections.Add(connection);
+        }
 
         private void NewConnection(ISocket sock)
         {
@@ -246,20 +281,17 @@ namespace Esiur.Net
 
                     if (sock == null)
                     {
-                        Console.Write("sock == null");
+                        //Console.Write("sock == null");
                         return;
                     }
 
-                    //sock.ReceiveBufferSize = 102400;
-                    //sock.SendBufferSize = 102400;
+                //sock.ReceiveBufferSize = 102400;
+                //sock.SendBufferSize = 102400;
+
 
                     TConnection c = new TConnection();
-                    c.OnDataReceived += OnDataReceived;
-                    c.OnConnect += OnClientConnect;
-                    c.OnClose += OnClientClose;
+                    AddConnection(c);
 
-
-                    connections.Add(c);
                     c.Assign(sock);
 
                     ClientConnected(c);
@@ -267,13 +299,14 @@ namespace Esiur.Net
                     // Accept more
                     listener.Accept().Then(NewConnection);
 
+                    sock.Begin();
 
 
             }
             catch (Exception ex)
             {
-                Console.WriteLine("TSERVER " + ex.ToString());
-                Global.Log("TServer", LogType.Error, ex.ToString());
+                //Console.WriteLine("TSERVER " + ex.ToString());
+                Global.Log("NetworkServer", LogType.Error, ex.ToString());
             }
 
             //isRunning = false;
@@ -317,6 +350,7 @@ namespace Esiur.Net
             try
             {
                 sender.Destroy();
+                RemoveConnection((TConnection)sender);
                 ClientDisconnected((TConnection)sender);
             }
             catch (Exception ex)

Esiur/Net/NetworkSession.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Diagnostics;
 using System.IO;
 using System.Net.Sockets;
@@ -61,7 +85,7 @@ namespace Esiur.Net
             OnEnd?.Invoke(this);
         }
 
-        void VariablesModified(string key, object oldValue, object newValue)
+        void VariablesModified(string key, object oldValue, object newValue, KeyList<string, object> sender)
         {
             OnModify?.Invoke(this, key, oldValue, newValue);
         }

Esiur/Net/Packets/HTTPRequestPacket.cs

@@ -1,4 +1,29 @@
-using System;
+
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -218,7 +243,7 @@ namespace Esiur.Net.Packets
                         return postSize - (data.Length - headerSize);
                     
 
-                    if (Headers["content-type"] == "application/x-www-form-urlencoded"
+                    if (Headers["content-type"].StartsWith("application/x-www-form-urlencoded")
                         || Headers["content-type"] == ""
                         || Headers["content-type"] == null)
                     {

Esiur/Net/Packets/HTTPResponsePacket.cs

@@ -1,4 +1,27 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/Packets/IIPAuthPacket.cs

@@ -1,4 +1,28 @@
- using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
 using System;
 using System.Collections.Generic;
 using System.Linq;

Esiur/Net/Packets/IIPPacket.cs

@@ -1,4 +1,28 @@
- using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
 using Esiur.Engine;
 using Esiur.Misc;
 using Esiur.Net.Packets;
@@ -12,12 +36,39 @@ namespace Esiur.Net.Packets
 {
     class IIPPacket : Packet
     {
+
+        public override string ToString()
+        {
+            var rt = Command.ToString();
+
+            if (Command == IIPPacketCommand.Event)
+            {
+                rt += " " + Event.ToString();
+                //if (Event == IIPPacketEvent.AttributesUpdated)
+                //  rt += 
+            }
+            else if (Command == IIPPacketCommand.Request)
+            {
+                rt += " " + Action.ToString();
+                if (Action == IIPPacketAction.AttachResource)
+                {
+                    rt += " CID: " + CallbackId + " RID: " + ResourceId; 
+                }
+            }
+            else if (Command == IIPPacketCommand.Reply)
+                rt += " " + Action.ToString();
+            else if (Command == IIPPacketCommand.Report)
+                rt += " " + Report.ToString();
+
+            return rt;
+        }
+
         public enum IIPPacketCommand : byte
         {
             Event = 0,
             Request,
             Reply,
-            Error,
+            Report,
         }
 
         public enum IIPPacketEvent: byte
@@ -25,10 +76,15 @@ namespace Esiur.Net.Packets
             // Event Manage
             ResourceReassigned = 0,
             ResourceDestroyed,
-            
+            ChildAdded,
+            ChildRemoved,
+            Renamed,
             // Event Invoke
             PropertyUpdated = 0x10,
-            EventOccured,
+            EventOccurred,
+
+            // Attribute
+            AttributesUpdated = 0x18
         }
 
         public enum IIPPacketAction : byte
@@ -39,21 +95,48 @@ namespace Esiur.Net.Packets
             DetachResource,
             CreateResource,
             DeleteResource,
+            AddChild,
+            RemoveChild,
+            RenameResource,
 
             // Request Inquire
             TemplateFromClassName = 0x8,
             TemplateFromClassId,
-            TemplateFromResourceLink,
             TemplateFromResourceId,
-            ResourceIdFromResourceLink,
+            QueryLink,
+            ResourceHistory,
+            ResourceChildren,
+            ResourceParents,
 
             // Request Invoke
             InvokeFunction = 0x10,
             GetProperty,
             GetPropertyIfModified,
             SetProperty,
+
+            // Request Attribute
+            GetAllAttributes = 0x18,
+            UpdateAllAttributes,
+            ClearAllAttributes,
+            GetAttributes,
+            UpdateAttributes,
+            ClearAttributes
         }
 
+        public enum IIPPacketReport: byte
+        {
+            ManagementError,
+            ExecutionError,
+            ProgressReport = 0x8,
+            ChunkStream = 0x9
+        }
+         
+
+        public IIPPacketReport Report
+        {
+            get;
+            set;
+        }
 
         public IIPPacketCommand Command
         {
@@ -72,13 +155,33 @@ namespace Esiur.Net.Packets
             set;
         }
 
+        public IIPPacketCommand PreviousCommand
+        {
+            get;
+            set;
+        }
+        public IIPPacketAction PreviousAction
+        {
+            get;
+            set;
+        }
+
+        public IIPPacketEvent PreviousEvent
+        {
+            get;
+            set;
+        }
+
 
         public uint ResourceId { get; set; }
         public uint NewResourceId { get; set; }
+        //public uint ParentId { get; set; }
+        public uint ChildId { get; set; }
+        public uint StoreId { get; set; }
 
-        public uint ResourceAge { get; set; }
+        public ulong ResourceAge { get; set; }
         public byte[] Content { get; set; }
-        public byte ErrorCode { get; set; }
+        public ushort ErrorCode { get; set; }
         public string ErrorMessage { get; set; }
         public string ClassName { get; set; }
         public string ResourceLink { get; set; }
@@ -86,8 +189,15 @@ namespace Esiur.Net.Packets
         public byte MethodIndex { get; set; }
         public string MethodName { get; set; }
         public uint CallbackId { get; set; }
+        public int ProgressValue { get; set; }
+        public int ProgressMax { get; set; }
+        public DateTime FromDate { get; set; }
+        public DateTime ToDate { get; set; }
+        public ulong FromAge { get; set; }
+        public ulong ToAge { get; set; }
 
         private uint dataLengthNeeded;
+        private uint originalOffset;
 
         public override bool Compose()
         {
@@ -98,7 +208,9 @@ namespace Esiur.Net.Packets
         {
             if (offset + needed > ends)
             {
-                dataLengthNeeded = needed - (ends - offset);
+                //dataLengthNeeded = needed - (ends - offset);
+                dataLengthNeeded = needed - (ends - originalOffset);
+
                 return true;
             }
             else
@@ -107,11 +219,13 @@ namespace Esiur.Net.Packets
 
         public override long Parse(byte[] data, uint offset, uint ends)
         {
-            var oOffset = offset;
+            originalOffset = offset;
 
             if (NotEnough(offset, ends, 1))
                 return -dataLengthNeeded;
 
+            PreviousCommand = Command;
+
             Command = (IIPPacketCommand)(data[offset] >> 6);
             
             if (Command == IIPPacketCommand.Event)
@@ -124,8 +238,19 @@ namespace Esiur.Net.Packets
                 ResourceId = data.GetUInt32(offset);
                 offset += 4;
             }
+            else if (Command == IIPPacketCommand.Report)
+            {
+                Report = (IIPPacketReport)(data[offset++] & 0x3f);
+
+                if (NotEnough(offset, ends, 4))
+                    return -dataLengthNeeded;
+
+                CallbackId = data.GetUInt32(offset);
+                offset += 4;
+            }
             else
             {
+                PreviousAction = Action;
                 Action = (IIPPacketAction)(data[offset++] & 0x3f);
 
                 if (NotEnough(offset, ends, 4))
@@ -150,6 +275,30 @@ namespace Esiur.Net.Packets
                 {
                     // nothing to parse
                 }
+                else if (Event == IIPPacketEvent.ChildAdded
+                        || Event == IIPPacketEvent.ChildRemoved)
+                {
+                    if (NotEnough(offset, ends, 4))
+                        return -dataLengthNeeded;
+
+                    ChildId = data.GetUInt32(offset);
+                    offset += 4;
+                }
+                else if(Event == IIPPacketEvent.Renamed)
+                {
+                    if (NotEnough(offset, ends, 2))
+                        return -dataLengthNeeded;
+
+                    var cl = data.GetUInt16(offset);
+                    offset += 2;
+
+                    if (NotEnough(offset, ends, cl))
+                        return -dataLengthNeeded;
+
+                    Content = data.Clip(offset, cl);
+
+                    offset += cl;
+                }
                 else if (Event == IIPPacketEvent.PropertyUpdated)
                 {
                     if (NotEnough(offset, ends, 2))
@@ -183,7 +332,7 @@ namespace Esiur.Net.Packets
                         offset += (uint)size;
                     }
                 }
-                else if (Event == IIPPacketEvent.EventOccured)
+                else if (Event == IIPPacketEvent.EventOccurred)
                 {
                     if (NotEnough(offset, ends, 5)) 
                         return -dataLengthNeeded;
@@ -197,6 +346,22 @@ namespace Esiur.Net.Packets
                     offset += cl;
 
                 }
+                // Attribute
+                else if (Event == IIPPacketEvent.AttributesUpdated)
+                {
+                    if (NotEnough(offset, ends, 4))
+                        return -dataLengthNeeded;
+
+                    var cl = data.GetUInt32(offset);
+                    offset += 4;
+
+                    if (NotEnough(offset, ends, cl))
+                        return -dataLengthNeeded;
+
+                    Content = data.Clip(offset, cl);
+
+                    offset += cl;
+                }
             }
             else if (Command == IIPPacketCommand.Request)
             {
@@ -210,14 +375,14 @@ namespace Esiur.Net.Packets
                 }
                 else if (Action == IIPPacketAction.ReattachResource)
                 {
-                    if (NotEnough(offset, ends, 8))
+                    if (NotEnough(offset, ends, 12))
                         return -dataLengthNeeded;
 
                     ResourceId = data.GetUInt32(offset);
                     offset += 4;
 
-                    ResourceAge = data.GetUInt32(offset);
-                    offset += 4;
+                    ResourceAge = data.GetUInt64(offset);
+                    offset += 8;
 
                 }
                 else if (Action == IIPPacketAction.DetachResource)
@@ -231,16 +396,21 @@ namespace Esiur.Net.Packets
                 }
                 else if (Action == IIPPacketAction.CreateResource)
                 {
-                    if (NotEnough(offset, ends, 1))
+                    if (NotEnough(offset, ends, 12))
                         return -dataLengthNeeded;
 
-                    var cl = data[offset++];
+                    StoreId = data.GetUInt32(offset);
+                    offset += 4;
+                    ResourceId = data.GetUInt32(offset);
+                    offset += 4;
+
+                    var cl = data.GetUInt32(offset);
+                    offset += 4;
 
                     if (NotEnough(offset, ends, cl))
                         return -dataLengthNeeded;
 
-                    ClassName = data.GetString(offset, cl);
-                    offset += cl;
+                    this.Content = data.Clip(offset, cl);
                 }
                 else if (Action == IIPPacketAction.DeleteResource)
                 {
@@ -251,6 +421,33 @@ namespace Esiur.Net.Packets
                     offset += 4;
 
                 }
+                else if (Action == IIPPacketAction.AddChild
+                        || Action == IIPPacketAction.RemoveChild)
+                {
+                    if (NotEnough(offset, ends, 8))
+                        return -dataLengthNeeded;
+
+                    ResourceId = data.GetUInt32(offset);
+                    offset += 4;
+                    ChildId = data.GetUInt32(offset);
+                    offset += 4;
+                }
+                else if (Action == IIPPacketAction.RenameResource)
+                {
+                    if (NotEnough(offset, ends, 6))
+                        return -dataLengthNeeded;
+
+                    ResourceId = data.GetUInt32(offset);
+                    offset += 4;
+                    var cl = data.GetUInt16(offset);
+                    offset += 2;
+
+                    if (NotEnough(offset, ends, cl))
+                        return -dataLengthNeeded;
+
+                    Content = data.Clip(offset, cl);
+                    offset += cl;
+                }
                 else if (Action == IIPPacketAction.TemplateFromClassName)
                 {
                     if (NotEnough(offset, ends, 1))
@@ -274,20 +471,6 @@ namespace Esiur.Net.Packets
                     offset += 16;
 
                 }
-                else if (Action == IIPPacketAction.TemplateFromResourceLink)
-                {
-                    if (NotEnough(offset, ends, 2))
-                        return -dataLengthNeeded;
-
-                    var cl = data.GetUInt16(offset);
-                    offset += 2;
-
-                    if (NotEnough(offset, ends, cl))
-                        return -dataLengthNeeded;
-
-                    ResourceLink = data.GetString(offset, cl);
-                    offset += cl;
-                }
                 else if (Action == IIPPacketAction.TemplateFromResourceId)
                 {
                     if (NotEnough(offset, ends, 4))
@@ -296,7 +479,7 @@ namespace Esiur.Net.Packets
                     ResourceId = data.GetUInt32(offset);
                     offset += 4;
                 }
-                else if (Action == IIPPacketAction.ResourceIdFromResourceLink)
+                else if (Action == IIPPacketAction.QueryLink)
                 {
                     if (NotEnough(offset, ends, 2))
                         return -dataLengthNeeded;
@@ -310,6 +493,30 @@ namespace Esiur.Net.Packets
                     ResourceLink = data.GetString(offset, cl);
                     offset += cl;
                 }
+                else if (Action == IIPPacketAction.ResourceChildren
+                        || Action == IIPPacketAction.ResourceParents)
+                {
+                    if (NotEnough(offset, ends, 4))
+                        return -dataLengthNeeded;
+
+                    ResourceId = data.GetUInt32(offset);
+                    offset += 4;
+                }
+                else if (Action == IIPPacketAction.ResourceHistory)
+                {
+                    if (NotEnough(offset, ends, 20))
+                        return -dataLengthNeeded;
+
+                    ResourceId = data.GetUInt32(offset);
+                    offset += 4;
+
+                    FromDate = data.GetDateTime(offset);
+                    offset += 8;
+
+                    ToDate = data.GetDateTime(offset);
+                    offset += 8;
+
+                }
                 else if (Action == IIPPacketAction.InvokeFunction)
                 {
                     if (NotEnough(offset, ends, 9))
@@ -351,8 +558,8 @@ namespace Esiur.Net.Packets
 
                     MethodIndex = data[offset++];
 
-                    ResourceAge = data.GetUInt32(offset);
-                    offset += 4;
+                    ResourceAge = data.GetUInt64(offset);
+                    offset += 8;
 
                 }
                 else if (Action == IIPPacketAction.SetProperty)
@@ -392,6 +599,26 @@ namespace Esiur.Net.Packets
                         offset += (uint)size;
                     }
                 }
+                // Attributes
+                else if (Action == IIPPacketAction.UpdateAllAttributes
+                        || Action == IIPPacketAction.GetAttributes
+                        || Action == IIPPacketAction.UpdateAttributes
+                        || Action == IIPPacketAction.ClearAttributes)
+                {
+                    if (NotEnough(offset, ends, 8))
+                        return -dataLengthNeeded;
+
+                    ResourceId = data.GetUInt32(offset);
+                    offset += 4;
+                    var cl = data.GetUInt32(offset);
+                    offset += 4;
+
+                    if (NotEnough(offset, ends, cl))
+                        return -dataLengthNeeded;
+
+                    Content = data.Clip(offset, cl);
+                    offset += cl;
+                }
             }
             else if (Command == IIPPacketCommand.Reply)
             {
@@ -405,8 +632,8 @@ namespace Esiur.Net.Packets
                     ClassId = data.GetGuid(offset);
                     offset += 16;
 
-                    ResourceAge = data.GetUInt32(offset);
-                    offset += 4;
+                    ResourceAge = data.GetUInt64(offset);
+                    offset += 8;
 
                     uint cl = data.GetUInt16(offset);
                     offset += 2;
@@ -438,8 +665,8 @@ namespace Esiur.Net.Packets
                     if (NotEnough(offset, ends, 20))
                         return -dataLengthNeeded;
 
-                    ClassId = data.GetGuid(offset);
-                    offset += 16;
+                    //ClassId = data.GetGuid(offset);
+                    //offset += 16;
 
                     ResourceId = data.GetUInt32(offset);
                     offset += 4;
@@ -449,10 +676,17 @@ namespace Esiur.Net.Packets
                 {
                     // nothing to do
                 }
+                        // Inquire
                 else if (Action == IIPPacketAction.TemplateFromClassName
                         || Action == IIPPacketAction.TemplateFromClassId
-                        || Action == IIPPacketAction.TemplateFromResourceLink
-                        || Action == IIPPacketAction.TemplateFromResourceId)
+                        || Action == IIPPacketAction.TemplateFromResourceId
+                        || Action == IIPPacketAction.QueryLink
+                        || Action == IIPPacketAction.ResourceChildren
+                        || Action == IIPPacketAction.ResourceParents
+                        || Action == IIPPacketAction.ResourceHistory
+                        // Attribute
+                        || Action == IIPPacketAction.GetAllAttributes
+                        || Action == IIPPacketAction.GetAttributes)
                 {
                     if (NotEnough(offset, ends, 4))
                         return -dataLengthNeeded;
@@ -466,20 +700,6 @@ namespace Esiur.Net.Packets
                     Content = data.Clip(offset, cl);
                     offset += cl;
                 }
-                else if (Action == IIPPacketAction.ResourceIdFromResourceLink)
-                {
-                    if (NotEnough(offset, ends, 24))
-                        return -dataLengthNeeded;
-
-                    ClassId = data.GetGuid(offset);
-                    offset += 16;
-
-                    ResourceId = data.GetUInt32(offset);
-                    offset += 4;
-
-                    ResourceAge = data.GetUInt32(offset);
-                    offset += 4;
-                }
                 else if (Action == IIPPacketAction.InvokeFunction 
                     || Action == IIPPacketAction.GetProperty
                     || Action == IIPPacketAction.GetPropertyIfModified)
@@ -518,33 +738,80 @@ namespace Esiur.Net.Packets
                     // nothing to do
                 }
             }
-            else if (Command == IIPPacketCommand.Error)
+            else if (Command == IIPPacketCommand.Report)
             {
-                // Error
-                if (NotEnough(offset, ends, 4))
-                    return -dataLengthNeeded;
+                if (Report == IIPPacketReport.ManagementError)
+                {
+                    if (NotEnough(offset, ends, 2))
+                        return -dataLengthNeeded;
 
-                CallbackId = data.GetUInt32(offset);
+                    ErrorCode = data.GetUInt16(offset);
+                    offset += 2;
+                }
+                else if (Report == IIPPacketReport.ExecutionError)
+                {
+                    if (NotEnough(offset, ends, 2))
+                        return -dataLengthNeeded;
 
-                if (NotEnough(offset, ends, 1))
-                    return -dataLengthNeeded;
+                    ErrorCode = data.GetUInt16(offset);
+                    offset += 2;
 
-                ErrorCode = data[offset++];
+                    if (NotEnough(offset, ends, 2))
+                        return -dataLengthNeeded;
 
-                if (NotEnough(offset, ends, 4))
-                    return -dataLengthNeeded;
+                    var cl = data.GetUInt16(offset);
+                    offset += 2;
 
-                var cl = data.GetUInt32(offset);
-                offset += 4;
+                    if (NotEnough(offset, ends, cl))
+                        return -dataLengthNeeded;
 
-                if (NotEnough(offset, ends, cl))
-                    return -dataLengthNeeded;
+                    ErrorMessage = data.GetString(offset, cl);
+                    offset += cl;
+                }
+                else if (Report == IIPPacketReport.ProgressReport)
+                {
+                    if (NotEnough(offset, ends, 8))
+                        return -dataLengthNeeded;
 
-                ErrorMessage = data.GetString(offset, cl);
-                offset += cl;
+                    ProgressValue = data.GetInt32(offset);
+                    offset += 4;
+                    ProgressMax = data.GetInt32(offset);
+                    offset += 4;
+                }
+                else if (Report == IIPPacketReport.ChunkStream)
+                {
+                    if (NotEnough(offset, ends, 1))
+                        return -dataLengthNeeded;
+
+                    var dt = (DataType)data[offset++];
+                    var size = dt.Size();// Codec.SizeOf(dt);
+
+                    if (size < 0)
+                    {
+                        if (NotEnough(offset, ends, 4))
+                            return -dataLengthNeeded;
+
+                        var cl = data.GetUInt32(offset);
+                        offset += 4;
+
+                        if (NotEnough(offset, ends, cl))
+                            return -dataLengthNeeded;
+
+                        Content = data.Clip(offset - 5, cl + 5);
+                        offset += cl;
+                    }
+                    else
+                    {
+                        if (NotEnough(offset, ends, (uint)size))
+                            return -dataLengthNeeded;
+
+                        Content = data.Clip(offset - 1, (uint)size + 1);
+                        offset += (uint)size;
+                    }
+                }
             } 
 
-            return offset - oOffset;
+            return offset - originalOffset;
         }
     }
 }

Esiur/Net/Packets/WebsocketPacket.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -138,9 +162,10 @@ namespace Esiur.Net.Packets
                     offset += 8;
                 }
 
+                /*
                 if (Mask)
                 {
-                    MaskKey = new byte[4];
+                                    MaskKey = new byte[4];
                     MaskKey[0] = data[offset++];
                     MaskKey[1] = data[offset++];
                     MaskKey[2] = data[offset++];
@@ -149,6 +174,7 @@ namespace Esiur.Net.Packets
                     //MaskKey = DC.GetUInt32(data, offset);
                     //offset += 4;
                 }
+                */
 
                 needed += PayloadLength;
                 if (length < needed)
@@ -156,23 +182,26 @@ namespace Esiur.Net.Packets
                     //Console.WriteLine("stage 4");
                     return length - needed;
                 }
-
-                //                if ((int)PayloadLength > (ends - offset))
-                //              {
-                //                return -((int)PayloadLength - (ends - offset));
-                //          }
                 else
                 {
-                    Message = DC.Clip(data, offset, (uint)PayloadLength);
 
                     if (Mask)
                     {
+                        MaskKey = new byte[4];
+                        MaskKey[0] = data[offset++];
+                        MaskKey[1] = data[offset++];
+                        MaskKey[2] = data[offset++];
+                        MaskKey[3] = data[offset++];
+
+                        Message = DC.Clip(data, offset, (uint)PayloadLength);
+
                         //var aMask = BitConverter.GetBytes(MaskKey);
                         for (int i = 0; i < Message.Length; i++)
-                        {
                             Message[i] = (byte)(Message[i] ^ MaskKey[i % 4]);
-                        }
                     }
+                    else
+                        Message = DC.Clip(data, offset, (uint)PayloadLength);
+
 
                     return (offset - oOffset) + (int)PayloadLength;
                 }

Esiur/Net/Sockets/ISocket.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.IO;
 using System.Net.Sockets;
 using System.Text;

Esiur/Net/Sockets/SSLSocket.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/Sockets/SocketState.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/Sockets/TCPSocket.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -27,7 +51,7 @@ namespace Esiur.Net.Sockets
         Queue<byte[]> sendBufferQueue = new Queue<byte[]>();
 
         bool asyncSending;
-
+        bool began = false;
 
         SocketState state = SocketState.Initial;
 
@@ -36,6 +60,7 @@ namespace Esiur.Net.Sockets
         public event ISocketCloseEvent OnClose;
         public event DestroyedEvent OnDestroy;
 
+        SocketAsyncEventArgs socketArgs = new SocketAsyncEventArgs();
 
         private void Connected(Task t)
         {
@@ -46,7 +71,18 @@ namespace Esiur.Net.Sockets
 
         public bool Begin()
         {
-            sock.ReceiveAsync(receiveBufferSegment, SocketFlags.None).ContinueWith(DataReceived);
+            if (began)
+                return false;
+
+            began = true;
+
+            socketArgs.SetBuffer(receiveBuffer, 0, receiveBuffer.Length);
+            socketArgs.Completed += SocketArgs_Completed;
+
+            if (!sock.ReceiveAsync(socketArgs))
+                SocketArgs_Completed(null, socketArgs);
+
+            //sock.ReceiveAsync(receiveBufferSegment, SocketFlags.None).ContinueWith(DataReceived);
             return true;
         }
 
@@ -80,11 +116,21 @@ namespace Esiur.Net.Sockets
                     return;
                 }
 
+                //if (receiveNetworkBuffer.Protected)
+                  //  Console.WriteLine();
 
+                //lock (receiveNetworkBuffer.SyncLock)
                 receiveNetworkBuffer.Write(receiveBuffer, 0, (uint)task.Result);
+
+                //Console.WriteLine("TC IN: " + (uint)task.Result + " " + DC.ToHex(receiveBuffer, 0, (uint)task.Result));
+
                 OnReceive?.Invoke(receiveNetworkBuffer);
                 if (state == SocketState.Established)
+                {
                     sock.ReceiveAsync(receiveBufferSegment, SocketFlags.None).ContinueWith(DataReceived);
+                    
+                }
+
             }
             catch (Exception ex)
             {
@@ -98,6 +144,56 @@ namespace Esiur.Net.Sockets
             }
         }
 
+        private void SocketArgs_Completed(object sender, SocketAsyncEventArgs e)
+        {
+            try
+            {
+                // SocketError err;
+               
+                if (state == SocketState.Closed || state == SocketState.Terminated)
+                    return;
+
+                if (e.BytesTransferred == 0)
+                {
+                    Close();
+                    return;
+                }
+
+                //if (receiveNetworkBuffer.Protected)
+                //    Console.WriteLine();
+
+                
+                //lock (receiveNetworkBuffer.SyncLock)
+                receiveNetworkBuffer.Write(receiveBuffer, 0, (uint)e.BytesTransferred);
+
+                //Console.WriteLine("TC IN: " + (uint)e.BytesTransferred + " " + DC.ToHex(receiveBuffer, 0, (uint)e.BytesTransferred));
+
+
+
+
+                OnReceive?.Invoke(receiveNetworkBuffer);
+
+                if (state == SocketState.Established)
+                {
+                    if (!sock.ReceiveAsync(socketArgs))
+                    {
+                        //Console.WriteLine("Sync");
+                        SocketArgs_Completed(sender, e);
+                    }
+                }
+
+            }
+            catch (Exception ex)
+            {
+                if (state != SocketState.Closed && !sock.Connected)
+                {
+                    state = SocketState.Terminated;
+                    Close();
+                }
+
+                Global.Log("TCPSocket", LogType.Error, ex.ToString());
+            }
+        }
 
         public IPEndPoint LocalEndPoint
         {
@@ -234,18 +330,19 @@ namespace Esiur.Net.Sockets
 
         public void Send(byte[] message, int offset, int size)
         {
-            lock (sendLock)
-            {
-                if (asyncSending)
+            if (sock.Connected)
+                lock (sendLock)
                 {
-                    sendBufferQueue.Enqueue(message.Clip((uint)offset, (uint)size));
+                    if (asyncSending)
+                    {
+                        sendBufferQueue.Enqueue(message.Clip((uint)offset, (uint)size));
+                    }
+                    else
+                    {
+                        asyncSending = true;
+                        sock.SendAsync(new ArraySegment<byte>(message, offset, size), SocketFlags.None).ContinueWith(DataSent);
+                    }
                 }
-                else
-                {
-                    asyncSending = true;
-                    sock.SendAsync(new ArraySegment<byte>(message, offset, size), SocketFlags.None).ContinueWith(DataSent);
-                }
-            }
         }
 
 

Esiur/Net/Sockets/WSSocket.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -9,6 +33,7 @@ using Esiur.Misc;
 using System.IO;
 using Esiur.Engine;
 using Esiur.Resource;
+using Esiur.Data;
 
 namespace Esiur.Net.Sockets
 {
@@ -28,6 +53,8 @@ namespace Esiur.Net.Sockets
 
         long totalSent, totalReceived;
 
+        bool processing = false;
+
         public IPEndPoint LocalEndPoint
         {
             get { return (IPEndPoint)sock.LocalEndPoint; }
@@ -70,9 +97,17 @@ namespace Esiur.Net.Sockets
             if (buffer.Protected)
                 return;
 
+            if (processing)
+                return;
+
+           
             var msg = buffer.Read();
 
+            if (msg == null)
+                return;
+
             var wsPacketLength = pkt_receive.Parse(msg, 0, (uint)msg.Length);
+            //Console.WriteLine("WSP: " + wsPacketLength);
 
             if (wsPacketLength < 0)
             {
@@ -114,12 +149,16 @@ namespace Esiur.Net.Sockets
 
                     receiveNetworkBuffer.Write(pkt_receive.Message);
                     offset += (uint)wsPacketLength;
+
+                    //Console.WriteLine("WS IN: " + pkt_receive.Opcode.ToString() + " " + pkt_receive.Message.Length + " | " + offset + " " + string.Join(" ", pkt_receive.Message));//  DC.ToHex(pkt_receive.Message));
+
                 }
                 else
                     Console.WriteLine("Unknown WS opcode:" + pkt_receive.Opcode);
 
                 if (offset == msg.Length)
                 {
+                //    Console.WriteLine("WS IN: " + receiveNetworkBuffer.Available);
                     OnReceive?.Invoke(receiveNetworkBuffer);
                     return;
                 }
@@ -132,11 +171,18 @@ namespace Esiur.Net.Sockets
                 //receiveNetworkBuffer.HoldFor(msg, offset, (uint)(msg.Length - offset), (uint)msg.Length + (uint)-wsPacketLength);
                 // save the incomplete packet to the heldBuffer queue
 
-                receiveNetworkBuffer.HoldFor(msg, offset, (uint)(msg.Length - offset), (uint)(msg.Length - offset) + (uint)-wsPacketLength);
+                buffer.HoldFor(msg, offset, (uint)(msg.Length - offset), (uint)(msg.Length - offset) + (uint)-wsPacketLength);
 
             }
 
+            //Console.WriteLine("WS IN: " + receiveNetworkBuffer.Available);
+
             OnReceive?.Invoke(receiveNetworkBuffer);
+
+            processing = false;
+
+            if (buffer.Available > 0 && !buffer.Protected)
+                Sock_OnReceive(buffer);
         }
 
         private void Sock_OnConnect()

Esiur/Net/TCP/TCPConnection.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/TCP/TCPFilter.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/TCP/TCPServer.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/TCP/TCPSession.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/UDP/UDPFilter.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Net/UDP/UDPServer.cs

@@ -1,3 +1,27 @@
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
 using System;
 using System.Net;
 using System.Net.Sockets;

Esiur/Properties/PublishProfiles/FolderProfile.pubxml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+https://go.microsoft.com/fwlink/?LinkID=208121. 
+-->
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <PublishProtocol>FileSystem</PublishProtocol>
+    <Configuration>Release</Configuration>
+    <TargetFramework>netstandard1.5</TargetFramework>
+    <PublishDir>M:\opt\esiur</PublishDir>
+    <Platform>Any CPU</Platform>
+  </PropertyGroup>
+</Project>

Esiur/Resource/IResource.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Resource/IStore.cs

@@ -1,4 +1,30 @@
-using Esiur.Engine;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
+using Esiur.Engine;
+using Esiur.Resource.Template;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -13,5 +39,15 @@ namespace Esiur.Resource
         AsyncReply<IResource> Retrieve(uint iid);
         bool Put(IResource resource);
         string Link(IResource resource);
+        bool Record(IResource resource, string propertyName, object value, ulong age, DateTime dateTime);
+        bool Modify(IResource resource, string propertyName, object value, ulong age, DateTime dateTime);
+        bool Remove(IResource resource);
+        //AsyncReply<PropertyValue[]> GetPropertyRecord(IResource resource, string propertyName, ulong fromAge, ulong toAge);
+        //AsyncReply<PropertyValue[]> GetPropertyRecordByDate(IResource resource, string propertyName, DateTime fromDate, DateTime toDate);
+
+        //AsyncReply<KeyList<PropertyTemplate, PropertyValue[]>> GetRecord(IResource resource, ulong fromAge, ulong toAge);
+        // AsyncReply<KeyList<PropertyTemplate, PropertyValue[]>> GetRecordByDate(IResource resource, DateTime fromDate, DateTime toDate);
+
+        AsyncReply<KeyList<PropertyTemplate, PropertyValue[]>> GetRecord(IResource resource, DateTime fromDate, DateTime toDate);
     }
 }

Esiur/Resource/Instance.cs

@@ -10,6 +10,7 @@ using Esiur.Net.IIP;
 using Esiur.Misc;
 using Esiur.Security.Permissions;
 using Esiur.Resource.Template;
+using Esiur.Security.Authority;
 
 namespace Esiur.Resource
 {
@@ -21,23 +22,29 @@ namespace Esiur.Resource
         IResource resource;
         IStore store;
         AutoList<IResource, Instance> parents;// = new AutoList<IResource>();
-        bool inherit;
+        //bool inherit;
         ResourceTemplate template;
 
-        AutoList<IPermissionManager, Instance> managers;// = new AutoList<IPermissionManager, Instance>();
+        AutoList<IPermissionsManager, Instance> managers;// = new AutoList<IPermissionManager, Instance>();
+
+ 
+        public delegate void ResourceModifiedEvent(IResource resource, string propertyName, object newValue);
+        //public delegate void ResourceEventOccurredEvent(IResource resource, string eventName, string[] users, DistributedConnection[] connections, object[] args);
+
+        public delegate void ResourceEventOccurredEvent(IResource resource, object issuer, Session[] receivers, string eventName, object[] args);
 
-        public delegate void ResourceModifiedEvent(IResource resource, string propertyName, object newValue, object oldValue);
-        public delegate void ResourceEventOccurredEvent(IResource resource, string eventName, string[] receivers, object[] args);
         public delegate void ResourceDestroyedEvent(IResource resource);
 
         public event ResourceModifiedEvent ResourceModified;
-        public event ResourceEventOccurredEvent ResourceEventOccured;
+        public event ResourceEventOccurredEvent ResourceEventOccurred;
         public event ResourceDestroyedEvent ResourceDestroyed;
 
-        KeyList<string, object> attributes = new KeyList<string, object>();
+        KeyList<string, object> attributes;
 
-        List<uint> ages = new List<uint>();
-        private uint age;
+        List<ulong> ages = new List<ulong>();
+        List<DateTime> modificationDates = new List<DateTime>();
+        private ulong instanceAge;
+        private DateTime instanceModificationDate;
 
         uint id;
 
@@ -53,12 +60,151 @@ namespace Esiur.Resource
             }
         }
 
+        public override string ToString()
+        {
+            return name + " (" + Link + ")";
+        }
+
+        public bool RemoveAttributes(string[] attributes = null)
+        {
+            if (attributes == null)
+                this.attributes.Clear();
+            else
+            {
+                foreach (var attr in attributes)
+                    this.attributes.Remove(attr);
+            }
+
+            return true;
+        }
+
+        public Structure GetAttributes(string[] attributes = null)
+        {
+            var st = new Structure();
+
+            if (attributes == null)
+            {
+                var clone = this.attributes.Keys.ToList();
+                clone.Add("managers");
+                attributes = clone.ToArray();// this.attributes.Keys.ToList().Add("managers");
+            }
+
+            foreach(var attr in attributes)
+            {
+                if (attr == "name")
+                    st["name"] = this.name;
+                else if (attr == "managers")
+                {
+                    var mngrs = new List<Structure>();
+
+                    foreach (var manager in this.managers)
+                        mngrs.Add(new Structure()
+                        {
+                            ["type"] = manager.GetType().FullName + "," + manager.GetType().GetTypeInfo().Assembly.GetName().Name,
+                            ["settings"] = manager.Settings
+                        });
+
+                    st["managers"] = mngrs.ToArray();
+                }
+                else if (attr == "parents")
+                {
+                    st["parents"] = parents.ToArray();
+                }
+                else if (attr == "children")
+                {
+                    st["children"] = children.ToArray();
+                }
+                else if (attr == "childrenCount")
+                {
+                    st["childrenCount"] = children.Count;
+                }
+                else if (attr == "type")
+                {
+                    st["type"] = resource.GetType().FullName;
+                }
+                else
+                    st[attr] = this.attributes[attr];
+            }
+
+            return st;
+        }
+
+        public bool SetAttributes(Structure attributes, bool clearAttributes = false)
+        {            
+            try
+            {
+
+                if (clearAttributes)
+                    this.attributes.Clear();
+
+                foreach (var attr in attributes)
+                    if (attr.Key == "name")
+                        this.name = attr.Value as string;
+                    else if (attr.Key == "managers")
+                    {
+                        this.managers.Clear();
+
+                        var mngrs = attr.Value as object[];
+
+                        foreach (var mngr in mngrs)
+                        {
+                            var m = mngr as Structure;
+                            var type = Type.GetType(m["type"] as string);
+                            if (Codec.ImplementsInterface(type, typeof(IPermissionsManager)))
+                            {
+                                var settings = m["settings"] as Structure;
+                                var manager = Activator.CreateInstance(type) as IPermissionsManager;
+                                manager.Initialize(settings, this.resource);
+                                this.managers.Add(manager);
+                            }
+                            else
+                                return false;
+                        }
+                    }
+                    else
+                    {
+                        this.attributes[attr.Key] = attr.Value;
+                    }
+                
+            }
+            catch
+            {
+                return false;
+            }
+
+            return true;
+        }
+        
+        /*
+        public Structure GetAttributes()
+        {
+            var st = new Structure();
+            foreach (var a in attributes.Keys)
+                st[a] = attributes[a];
+
+            st["name"] = name;
+
+            var mngrs = new List<Structure>();
+
+            foreach (var manager in managers)
+            {
+                var mngr = new Structure();
+                mngr["settings"] = manager.Settings;
+                mngr["type"] = manager.GetType().FullName;
+                mngrs.Add(mngr);
+            }
+
+            st["managers"] = mngrs;
+
+            return st;
+        }*/
+
         /// <summary>
         /// Get the age of a given property index.
         /// </summary>
         /// <param name="index">Zero-based property index.</param>
         /// <returns>Age.</returns>
-        public uint GetAge(byte index)
+        public ulong GetAge(byte index)
         {
             if (index < ages.Count)
                 return ages[index];
@@ -67,12 +213,107 @@ namespace Esiur.Resource
         }
 
         /// <summary>
-        /// Age of the instance, increments by 1 in every modification.
+        /// Set the age of a property.
         /// </summary>
-        public uint Age
+        /// <param name="index">Zero-based property index.</param>
+        /// <param name="value">Age.</param>
+        public void SetAge(byte index, ulong value)
         {
-            get { return age; }
-            internal set { age = value; }
+            if (index < ages.Count)
+            {
+                ages[index] = value;
+                if (value > instanceAge)
+                    instanceAge = value;
+            }
+        }
+
+        /// <summary>
+        /// Set the modification date of a property.
+        /// </summary>
+        /// <param name="index">Zero-based property index.</param>
+        /// <param name="value">Modification date.</param>
+        public void SetModificationDate(byte index, DateTime value)
+        {
+            if (index < modificationDates.Count)
+            {
+                modificationDates[index] = value;
+                if (value > instanceModificationDate)
+                    instanceModificationDate = value;
+            }
+        }
+
+        /// <summary>
+        /// Get modification date of a specific property.
+        /// </summary>
+        /// <param name="index">Zero-based property index</param>
+        /// <returns>Modification date.</returns>
+        public DateTime GetModificationDate(byte index)
+        {
+            if (index < modificationDates.Count)
+                return modificationDates[index];
+            else
+                return DateTime.MinValue;
+        }
+
+        
+        /// <summary>
+        /// Load property value (used by stores)
+        /// </summary>
+        /// <param name="name">Property name</param>
+        /// <param name="age">Property age</param>
+        /// <param name="value">Property value</param>
+        /// <returns></returns>
+        public bool LoadProperty(string name, ulong age, DateTime modificationDate, object value)
+        {
+            var pt = template.GetPropertyTemplate(name);
+
+            if (pt == null)
+                return false;
+
+#if NETSTANDARD1_5
+            var pi = resource.GetType().GetTypeInfo().GetProperty(name);
+#else
+            var pi = resource.GetType().GetProperty(pt.Name);
+#endif
+            if (pi.PropertyType == typeof(DistributedPropertyContext))
+                return false;
+
+       
+            try
+            {
+                if (pi.CanWrite)
+                    pi.SetValue(resource, DC.CastConvert(value, pi.PropertyType));
+            }
+            catch(Exception ex)
+            {
+                //Console.WriteLine(resource.ToString() + " " + name);
+                Global.Log(ex);
+            }
+
+            SetAge(pt.Index, age);
+            SetModificationDate(pt.Index, modificationDate);
+
+            return true;
+        }
+
+        /// <summary>
+        /// Age of the instance, incremented by 1 in every modification.
+        /// </summary>
+        public ulong Age
+        {
+            get { return instanceAge; }
+            internal set { instanceAge = value; }
+        }
+
+        /// <summary>
+        /// Last modification date.
+        /// </summary>
+        public DateTime ModificationDate
+        {
+            get
+            {
+                return instanceModificationDate;
+            }
         }
 
         /// <summary>
@@ -88,18 +329,18 @@ namespace Esiur.Resource
         /// </summary>
         /// <param name="properties"></param>
         /// <returns></returns>
-        public bool Deserialize(object[] properties)
+        public bool Deserialize(PropertyValue[] properties)
         {
-            foreach (var pt in template.Properties)
+            for (byte i = 0; i < properties.Length; i++)
             {
-#if NETSTANDARD1_5
-                var pi = resource.GetType().GetTypeInfo().GetProperty(pt.Name);
-#else
-                var pi = resource.GetType().GetProperty(pt.Name);
-#endif
-                if (!(properties[pt.Index] is NotModified))
-                    pi.SetValue(resource, properties[pt.Index]);
+                var pt = this.template.GetPropertyTemplate(i);
+                if (pt != null)
+                {
+                    var pv = properties[i];
+                    LoadProperty(pt.Name, pv.Age, pv.Date, pv.Value);
+                }
             }
+
             return true;
         }
 
@@ -107,9 +348,9 @@ namespace Esiur.Resource
         /// Export all properties with ResourceProperty attributed as bytes array.
         /// </summary>
         /// <returns></returns>
-        public object[] Serialize()
+        public PropertyValue[] Serialize()
         {
-            List<object> props = new List<object>();
+            List<PropertyValue> props = new List<PropertyValue>();
 
             foreach (var pt in template.Properties)
             {
@@ -119,7 +360,7 @@ namespace Esiur.Resource
                 var pi = resource.GetType().GetProperty(pt.Name);
 #endif
                 var rt = pi.GetValue(resource, null);
-                props.Add(rt);
+                props.Add(new PropertyValue(rt, ages[pt.Index], modificationDates[pt.Index]));
             }
 
             return props.ToArray();
@@ -191,10 +432,10 @@ namespace Esiur.Resource
         }
         */
 
-            /// <summary>
-            /// If True, the instance can be stored to disk.
-            /// </summary>
-            /// <returns></returns>
+        /// <summary>
+        /// If True, the instance can be stored to disk.
+        /// </summary>
+        /// <returns></returns>
         public bool IsStorable()
         {
 #if NETSTANDARD1_5
@@ -207,27 +448,47 @@ namespace Esiur.Resource
         }
 
 
+        internal void EmitModification(PropertyTemplate pt, object value)
+        {
+            instanceAge++;
+            var now = DateTime.UtcNow;
+
+            ages[pt.Index] = instanceAge;
+            modificationDates[pt.Index] = now;
+
+            if (pt.Storage == StorageMode.NonVolatile)
+            {
+                store.Modify(resource, pt.Name, value, ages[pt.Index], now);
+            }
+            else if (pt.Storage == StorageMode.Recordable)
+            { 
+                store.Record(resource, pt.Name, value, ages[pt.Index], now);
+            }
+
+            ResourceModified?.Invoke(resource, pt.Name, value);
+        }
+
         /// <summary>
         /// Notify listeners that a property was modified.
         /// </summary>
         /// <param name="propertyName"></param>
         /// <param name="newValue"></param>
         /// <param name="oldValue"></param>
-        public void Modified([CallerMemberName] string propertyName = "", object newValue = null, object oldValue = null)
+        public void Modified([CallerMemberName] string propertyName = "")//, object newValue = null)//, object oldValue = null)
         {
-            if (newValue == null)
+            object value;
+            if (GetPropertyValue(propertyName, out value))
             {
-                object val;
-                if (GetPropertyValue(propertyName, out val))
-                    ResourceModified?.Invoke(resource, propertyName, val, oldValue);
+                var pt = template.GetPropertyTemplate(propertyName);
+                EmitModification(pt, value);
             }
-            else
-                ResourceModified?.Invoke(resource, propertyName, newValue, oldValue);
         }
 
-        internal void EmitResourceEvent(string name, string[] receivers, object[] args)
+        //        internal void EmitResourceEvent(string name, string[] users, DistributedConnection[] connections, object[] args)
+
+        internal void EmitResourceEvent(object issuer, Session[] receivers, string name, object[] args)
         {
-            ResourceEventOccured?.Invoke(resource, name, receivers, args);
+            ResourceEventOccurred?.Invoke(resource, issuer, receivers, name, args);
         }
 
         /// <summary>
@@ -259,7 +520,7 @@ namespace Esiur.Resource
                 {
                     value = pi.GetValue(resource, null);
                     //if (value is Func<IManager, object>)
-                      //  value = (value as Func<IManager, object>)(sender);
+                    //  value = (value as Func<IManager, object>)(sender);
                     return true;
                 }
             }
@@ -269,10 +530,11 @@ namespace Esiur.Resource
         }
 
 
+        /*
         public bool Inherit
         {
             get { return inherit; }
-        }
+        }*/
 
         /// <summary>
         /// List of parents.
@@ -335,6 +597,7 @@ namespace Esiur.Resource
         public string Name
         {
             get { return name; }
+            set { name = value; }
         }
 
 
@@ -352,37 +615,85 @@ namespace Esiur.Resource
         public ResourceTemplate Template
         {
             get { return template; }
+
+            /*
+            internal set
+            {
+                template = Warehouse.GetTemplate(resource.GetType());
+
+                // set ages
+                for (byte i = 0; i < template.Properties.Length; i++)
+                {
+                    ages.Add(0);
+                    modificationDates.Add(DateTime.MinValue);
+                }
+            }
+            */
         }
 
-       /// <summary>
-       /// Create new instance.
-       /// </summary>
-       /// <param name="id">Instance Id.</param>
-       /// <param name="name">Name of the instance.</param>
-       /// <param name="resource">Resource to manage.</param>
-       /// <param name="store">Store responsible for the resource.</param>
-        public Instance(uint id, string name, IResource resource, IStore store)
+        /// <summary>
+        /// Check for permission.
+        /// </summary>
+        /// <param name="session">Caller sessions.</param>
+        /// <param name="action">Action type</param>
+        /// <param name="member">Function, property or event to check for permission.</param>
+        /// <param name="inquirer">Permission inquirer.</param>
+        /// <returns>Ruling.</returns>
+        public Ruling Applicable(Session session, ActionType action, MemberTemplate member, object inquirer = null)
+        {
+            foreach (IPermissionsManager manager in managers)
+            {
+                var r = manager.Applicable(this.resource, session, action, member, inquirer);
+                if (r != Ruling.DontCare)
+                    return r;
+            }
+
+            return Ruling.DontCare;
+
+        }
+
+        /// <summary>
+        /// Execution managers.
+        /// </summary>
+        public AutoList<IPermissionsManager, Instance> Managers => managers;
+
+        /// <summary>
+        /// Create new instance.
+        /// </summary>
+        /// <param name="id">Instance Id.</param>
+        /// <param name="name">Name of the instance.</param>
+        /// <param name="resource">Resource to manage.</param>
+        /// <param name="store">Store responsible for the resource.</param>
+        public Instance(uint id, string name, IResource resource, IStore store, ResourceTemplate customTemplate = null, ulong age = 0)
         {
             this.store = store;
             this.resource = resource;
             this.id = id;
             this.name = name;
+            this.instanceAge = age;
 
+            this.attributes = new KeyList<string, object>(this);
             children = new AutoList<IResource, Instance>(this);
             parents = new AutoList<IResource, Instance>(this);
-            managers = new AutoList<IPermissionManager, Instance>(this);
+            managers = new AutoList<IPermissionsManager, Instance>(this);
             children.OnAdd += Children_OnAdd;
             children.OnRemoved += Children_OnRemoved;
+            parents.OnAdd += Parents_OnAdd;
+            parents.OnRemoved += Parents_OnRemoved;
 
             resource.OnDestroy += Resource_OnDestroy;
 
-            template = Warehouse.GetTemplate(resource.GetType());
+            if (customTemplate != null)
+                this.template = customTemplate;
+            else
+                this.template = Warehouse.GetTemplate(resource.GetType());
             
-
-            // set ages
+              // set ages
             for (byte i = 0; i < template.Properties.Length; i++)
+            {
                 ages.Add(0);
-
+                modificationDates.Add(DateTime.MinValue);
+            }
  
             // connect events
             Type t = resource.GetType();
@@ -396,16 +707,62 @@ namespace Esiur.Resource
 
             foreach (var evt in events)
             {
-                if (evt.EventHandlerType != typeof(ResourceEventHanlder))
-                    continue;
+                //if (evt.EventHandlerType != typeof(ResourceEventHanlder))
+                //    continue;
 
-                var ca = (ResourceEvent[])evt.GetCustomAttributes(typeof(ResourceEvent), true);
 
-                if (ca.Length == 0)
-                    continue;
+                if (evt.EventHandlerType == typeof(ResourceEventHanlder))
+                {
+                    var ca = (ResourceEvent[])evt.GetCustomAttributes(typeof(ResourceEvent), true);
+                    if (ca.Length == 0)
+                        continue;
+
+                    ResourceEventHanlder proxyDelegate = (args) => EmitResourceEvent(null, null, evt.Name, args);
+                    evt.AddEventHandler(resource, proxyDelegate);
+
+                }
+                else if (evt.EventHandlerType == typeof(CustomResourceEventHanlder))
+                {
+                    var ca = (ResourceEvent[])evt.GetCustomAttributes(typeof(ResourceEvent), true);
+                    if (ca.Length == 0)
+                        continue;
+
+                    CustomResourceEventHanlder proxyDelegate = (issuer, receivers, args) => EmitResourceEvent(issuer, receivers, evt.Name, args);
+                    evt.AddEventHandler(resource, proxyDelegate);
+                }
+         
+
+                /*
+                else if (evt.EventHandlerType == typeof(CustomUsersEventHanlder))
+                {
+                    var ca = (ResourceEvent[])evt.GetCustomAttributes(typeof(ResourceEvent), true);
+                    if (ca.Length == 0)
+                        continue;
+
+                    CustomUsersEventHanlder proxyDelegate = (users, args) => EmitResourceEvent(evt.Name, users, null, args);
+                    evt.AddEventHandler(resource, proxyDelegate);
+                }
+                else if (evt.EventHandlerType == typeof(CustomConnectionsEventHanlder))
+                {
+                    var ca = (ResourceEvent[])evt.GetCustomAttributes(typeof(ResourceEvent), true);
+                    if (ca.Length == 0)
+                        continue;
+
+                    CustomConnectionsEventHanlder proxyDelegate = (connections, args) => EmitResourceEvent(evt.Name, null, connections, args);
+                    evt.AddEventHandler(resource, proxyDelegate);
+                }
+                else if (evt.EventHandlerType == typeof(CustomReceiversEventHanlder))
+                {
+                    var ca = (ResourceEvent[])evt.GetCustomAttributes(typeof(ResourceEvent), true);
+                    if (ca.Length == 0)
+                        continue;
+
+                    CustomReceiversEventHanlder proxyDelegate = (users, connections, args) => EmitResourceEvent(evt.Name, users, connections, args);
+                    evt.AddEventHandler(resource, proxyDelegate);
+
+                }
+                */
 
-                ResourceEventHanlder proxyDelegate = (receivers, args) => EmitResourceEvent(evt.Name, receivers, args);
-                evt.AddEventHandler(resource, proxyDelegate);
             }
         }
 
@@ -416,9 +773,22 @@ namespace Esiur.Resource
 
         private void Children_OnAdd(Instance parent, IResource value)
         {
-            value.Instance.parents.Add(resource);
+            if (!value.Instance.parents.Contains(resource))
+                value.Instance.parents.Add(resource);
         }
 
+        private void Parents_OnRemoved(Instance parent, IResource value)
+        {
+            value.Instance.children.Remove(resource);
+        }
+
+        private void Parents_OnAdd(Instance parent, IResource value)
+        {
+            if (!value.Instance.children.Contains(resource))
+                value.Instance.children.Add(resource);
+        }
+
+
         private void Resource_OnDestroy(object sender)
         {
             ResourceDestroyed?.Invoke((IResource)sender);

Esiur/Resource/Resource.cs

@@ -0,0 +1,47 @@
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Esiur.Engine;
+
+namespace Esiur.Resource
+{
+    public class Resource : IResource
+    {
+        public Instance Instance { get; set; }
+
+        public event DestroyedEvent OnDestroy;
+
+        public virtual void Destroy()
+        {
+            
+        }
+
+        public virtual AsyncReply<bool> Trigger(ResourceTrigger trigger)
+        {
+            return new AsyncReply<bool>(true);
+        }
+    }
+}

Esiur/Resource/ResourceEvent.cs

@@ -1,4 +1,27 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Resource/ResourceEventHandler.cs

@@ -1,5 +1,30 @@
-using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+using Esiur.Data;
 using Esiur.Engine;
+using Esiur.Net.IIP;
+using Esiur.Security.Authority;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -8,6 +33,13 @@ using System.Threading.Tasks;
 
 namespace Esiur.Resource
 {
-    public delegate void ResourceEventHanlder(string[] receivers, params object[] args);
+    public delegate void ResourceEventHanlder(params object[] args);
+   // public delegate void CustomUsersEventHanlder(string[] usernames, params object[] args);
+    //public delegate void CustomReceiversEventHanlder(DistributedConnection[] connections, params object[] args);
+    //public delegate void CustomInquirerEventHanlder(object inquirer, params object[] args);
+
+    public delegate void CustomResourceEventHanlder(object issuer, Session[] receivers, params object[] args);
+
+    // public delegate void CustomReceiversEventHanlder(string[] usernames, DistributedConnection[] connections, params object[] args);
 
 }

Esiur/Resource/ResourceFunction.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Resource/ResourceProperty.cs

@@ -1,4 +1,29 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Resource.Template;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -12,7 +37,15 @@ namespace Esiur.Resource
     {
         string readExpansion;
         string writeExpansion;
+        // bool recordable;
+        //bool storable;
 
+        //public bool Recordable => recordable;
+
+        //public bool Storable => storable;
+        StorageMode storage;
+
+        public StorageMode Storage => storage;
 
         public string ReadExpansion
         {
@@ -30,10 +63,11 @@ namespace Esiur.Resource
             }
         }
 
-        public ResourceProperty(string readExpansion = null, string writeExpansion = null)
+        public ResourceProperty(StorageMode storage = StorageMode.Volatile, string readExpansion = null, string writeExpansion = null)
         {
             this.readExpansion = readExpansion;
             this.writeExpansion = writeExpansion;
+            this.storage = storage;
         }
     }
 }

Esiur/Resource/ResourceTrigger.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Resource/Storable.cs

@@ -1,4 +1,28 @@
-using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
 using Esiur.Engine;
 using System;
 using System.Collections.Generic;

Esiur/Resource/StorageMode.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Esiur.Resource
+{
+    public enum StorageMode : byte
+    {
+        Volatile = 0,
+        NonVolatile,
+        Recordable
+    }
+}

Esiur/Resource/Template/EventTemplate.cs

@@ -28,6 +28,11 @@ namespace Esiur.Resource.Template
                 return BinaryList.ToBytes((byte)0x40, (byte)name.Length, name);
         }
 
-        public EventTemplate() { Type = MemberType.Event; }
+
+        public EventTemplate(ResourceTemplate template, byte index, string name, string expansion)
+            :base(template, MemberType.Property, index, name)
+        {
+            this.Expansion = expansion;
+        }
     }
 }

Esiur/Resource/Template/FunctionTemplate.cs

@@ -37,6 +37,11 @@ namespace Esiur.Resource.Template
         }
 
 
-        public FunctionTemplate() { Type = MemberType.Function; }
+        public FunctionTemplate(ResourceTemplate template, byte index, string name,bool isVoid, string expansion)
+            :base(template, MemberType.Property, index, name)
+        {
+            this.IsVoid = isVoid;
+            this.Expansion = expansion;
+        }
     }
 }

Esiur/Resource/Template/MemberTemplate.cs

@@ -16,9 +16,26 @@ namespace Esiur.Resource.Template
             Event = 2,
         }
 
-        public byte Index { get; set; }
-        public string Name { get; set; }
-        public MemberType Type { get; set; }
+        public byte Index => index;
+        public string Name => name;
+        public MemberType Type => type;
+
+        ResourceTemplate template;
+        string name;
+        MemberType type;
+        byte index;
+
+        public ResourceTemplate Template => template;
+
+        public MemberTemplate(ResourceTemplate template, MemberType type, byte index, string name)
+        {
+            this.template = template;
+            this.type = type;
+            this.index = index;
+            this.name = name;
+        }
+
+        public string Fullname => template.ClassName + "." + Name;
 
         public virtual byte[] Compose()
         {

Esiur/Resource/Template/PropertyTemplate.cs

@@ -16,6 +16,7 @@ namespace Esiur.Resource.Template
             ReadWrite
         }
 
+
         //bool ReadOnly;
         //IIPTypes::DataType ReturnType;
         public PropertyPermission Permission {
@@ -23,6 +24,19 @@ namespace Esiur.Resource.Template
             set;
         }
 
+        /*
+        public bool Recordable
+        {
+            get;
+            set;
+        }*/
+
+        public StorageMode Storage
+        {
+            get;
+            set;
+        }
+
         public string ReadExpansion
         {
             get;
@@ -35,37 +49,46 @@ namespace Esiur.Resource.Template
             set;
         }
 
+        /*
         public bool Storable
         {
             get;
             set;
-        }
+        }*/
 
 
         public override byte[] Compose()
         {
             var name = base.Compose();
+            var pv = ((byte)(Permission) << 1) | (Storage == StorageMode.Recordable ? 1 : 0);
 
             if (WriteExpansion != null && ReadExpansion != null)
             {
                 var rexp = DC.ToBytes(ReadExpansion);
                 var wexp = DC.ToBytes(WriteExpansion);
-                return BinaryList.ToBytes((byte)(0x38 | (byte)Permission), wexp.Length, wexp, rexp.Length, rexp, (byte)name.Length, name);
+                return BinaryList.ToBytes((byte)(0x38 | pv), wexp.Length, wexp, rexp.Length, rexp, (byte)name.Length, name);
             }
             else if (WriteExpansion != null)
             {
                 var wexp = DC.ToBytes(WriteExpansion);
-                return BinaryList.ToBytes((byte)(0x30 | (byte)Permission), wexp.Length, wexp, (byte)name.Length, name);
+                return BinaryList.ToBytes((byte)(0x30 | pv), wexp.Length, wexp, (byte)name.Length, name);
             }
             else if (ReadExpansion != null)
             {
                 var rexp = DC.ToBytes(ReadExpansion);
-                return BinaryList.ToBytes((byte)(0x28 | (byte)Permission), rexp.Length, rexp, (byte)name.Length, name);
+                return BinaryList.ToBytes((byte)(0x28 | pv), rexp.Length, rexp, (byte)name.Length, name);
             }
             else
-                return BinaryList.ToBytes((byte)(0x20 | (byte)Permission), (byte)name.Length, name);
+                return BinaryList.ToBytes((byte)(0x20 | pv), (byte)name.Length, name);
         }
 
-        public PropertyTemplate() { Type = MemberType.Property; }
+        public PropertyTemplate(ResourceTemplate template, byte index, string name, string read, string write, StorageMode storage)
+            :base(template, MemberType.Property, index, name)
+        {
+            //this.Recordable = recordable;
+            this.Storage = storage;
+            this.ReadExpansion = read;
+            this.WriteExpansion = write;
+        }
     }
 }

Esiur/Resource/Template/ResourceTemplate.cs

@@ -155,12 +155,8 @@ namespace Esiur.Resource.Template
                 var ps = (ResourceProperty[])pi.GetCustomAttributes(typeof(ResourceProperty), true);
                 if (ps.Length > 0)
                 {
-                    var pt = new PropertyTemplate();
-                    pt.Name = pi.Name;
-                    pt.Index = i++;
-                    pt.ReadExpansion = ps[0].ReadExpansion;
-                    pt.WriteExpansion = ps[0].WriteExpansion;
-                    properties.Add(pt);
+                    var pt = new PropertyTemplate(this, i++, pi.Name, ps[0].ReadExpansion, ps[0].WriteExpansion, ps[0].Storage);
+                     properties.Add(pt);
                 }
             }
 
@@ -171,10 +167,7 @@ namespace Esiur.Resource.Template
                 var es = (ResourceEvent[])ei.GetCustomAttributes(typeof(ResourceEvent), true);
                 if (es.Length > 0)
                 {
-                    var et = new EventTemplate();
-                    et.Name = ei.Name;
-                    et.Index = i++;
-                    et.Expansion = es[0].Expansion;
+                    var et = new EventTemplate(this, i++, ei.Name, es[0].Expansion);
                     events.Add(et);
                 }
             }
@@ -185,11 +178,7 @@ namespace Esiur.Resource.Template
                 var fs = (ResourceFunction[])mi.GetCustomAttributes(typeof(ResourceFunction), true);
                 if (fs.Length > 0)
                 {
-                    var ft = new FunctionTemplate();
-                    ft.Name = mi.Name;
-                    ft.Index = i++;
-                    ft.IsVoid = mi.ReturnType == typeof(void);
-                    ft.Expansion = fs[0].Expansion;
+                    var ft = new FunctionTemplate(this, i++, mi.Name, mi.ReturnType == typeof(void), fs[0].Expansion);
                     functions.Add(ft);
                 }
             }
@@ -258,69 +247,76 @@ namespace Esiur.Resource.Template
 
                 if (type == 0) // function
                 {
-                    var ft = new FunctionTemplate();
-                    ft.Index = functionIndex++;
-                    var expansion = ((data[offset] & 0x10) == 0x10);
-                    ft.IsVoid = ((data[offset++] & 0x08) == 0x08);
-                    ft.Name = data.GetString(offset + 1, data[offset]);// Encoding.ASCII.GetString(data, (int)offset + 1, data[offset]);
+                    string expansion = null;
+                    var hasExpansion = ((data[offset] & 0x10) == 0x10);
+                    var isVoid = ((data[offset++] & 0x08) == 0x08);
+                    var name = data.GetString(offset + 1, data[offset]);// Encoding.ASCII.GetString(data, (int)offset + 1, data[offset]);
                     offset += (uint)data[offset] + 1;
                     
-                    if (expansion) // expansion ?
+                    if (hasExpansion) // expansion ?
                     {
                         var cs = data.GetUInt32(offset);
                         offset += 4;
-                        ft.Expansion = data.GetString(offset, cs);  
+                        expansion = data.GetString(offset, cs);  
                         offset += cs;
                     }
 
+                    var ft = new FunctionTemplate(od, functionIndex++, name, isVoid, expansion);
+
                     od.functions.Add(ft);
                 }
                 else if (type == 1)    // property
                 {
 
-                    var pt = new PropertyTemplate();
-                    pt.Index = propertyIndex++;
-                    var readExpansion = ((data[offset] & 0x8) == 0x8);
-                    var writeExpansion = ((data[offset] & 0x10) == 0x10);
-                    pt.Permission = (PropertyTemplate.PropertyPermission)((data[offset++] >> 1) & 0x3);
-                    pt.Name = data.GetString(offset + 1, data[offset]);// Encoding.ASCII.GetString(data, (int)offset + 1, data[offset]);
+                    string readExpansion = null, writeExpansion = null;
+
+                    var hasReadExpansion = ((data[offset] & 0x8) == 0x8);
+                    var hasWriteExpansion = ((data[offset] & 0x10) == 0x10);
+                    var recordable = ((data[offset] & 1) == 1);
+                    var permission = (PropertyTemplate.PropertyPermission)((data[offset++] >> 1) & 0x3);
+                    var name = data.GetString(offset + 1, data[offset]);// Encoding.ASCII.GetString(data, (int)offset + 1, data[offset]);
+                    
                     offset += (uint)data[offset] + 1;
 
-                    if (readExpansion) // expansion ?
+                    if (hasReadExpansion) // expansion ?
                     {
                         var cs = data.GetUInt32(offset);
                         offset += 4;
-                        pt.ReadExpansion = data.GetString(offset, cs);
+                        readExpansion = data.GetString(offset, cs);
                         offset += cs;
                     }
 
-                    if (writeExpansion) // expansion ?
+                    if (hasWriteExpansion) // expansion ?
                     {
                         var cs = data.GetUInt32(offset);
                         offset += 4;
-                        pt.WriteExpansion = data.GetString(offset, cs);
+                        writeExpansion = data.GetString(offset, cs);
                         offset += cs;
                     }
 
+                    var pt = new PropertyTemplate(od, propertyIndex++, name, readExpansion, writeExpansion, recordable ? StorageMode.Recordable : StorageMode.Volatile);
+
                     od.properties.Add(pt);
                 }
                 else if (type == 2) // Event
                 {
-                    var et = new EventTemplate();
-                    et.Index = eventIndex++;
-                    var expansion = ((data[offset++] & 0x10) == 0x10);
 
-                    et.Name = data.GetString(offset + 1, data[offset]);// Encoding.ASCII.GetString(data, (int)offset + 1, (int)data[offset]);
+                    string expansion = null;
+                    var hasExpansion = ((data[offset++] & 0x10) == 0x10);
+
+                    var name = data.GetString(offset + 1, data[offset]);// Encoding.ASCII.GetString(data, (int)offset + 1, (int)data[offset]);
                     offset += (uint)data[offset] + 1;
 
-                    if (expansion) // expansion ?
+                    if (hasExpansion) // expansion ?
                     {
                         var cs = data.GetUInt32(offset);
                         offset += 4;
-                        et.Expansion = data.GetString(offset, cs);
+                        expansion = data.GetString(offset, cs);
                         offset += cs;
                     }
 
+                    var et = new EventTemplate(od, eventIndex++, name, expansion);
+
                     od.events.Add(et);
 
                 }

Esiur/Resource/Warehouse.cs

@@ -1,6 +1,31 @@
-using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
 using Esiur.Engine;
 using Esiur.Resource.Template;
+using Esiur.Security.Permissions;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -14,12 +39,20 @@ namespace Esiur.Resource
     {
         //static byte prefixCounter;
 
-        static List<IStore> stores = new List<IStore>();
+        static AutoList<IResource, Instance> stores = new AutoList<IResource, Instance>(null);
         static Dictionary<uint, IResource> resources = new Dictionary<uint, IResource>();
         static uint resourceCounter = 0;
 
         static KeyList<Guid, ResourceTemplate> templates = new KeyList<Guid, ResourceTemplate>();
 
+        static bool storeIsOpen = false;
+
+        public delegate void StoreConnectedEvent(IStore store, string name);
+        public delegate void StoreDisconnectedEvent(IStore store);
+        
+        public static event StoreConnectedEvent StoreConnected;
+        public static event StoreDisconnectedEvent StoreDisconnected;
+
 
         /// <summary>
         /// Get a store by its name.
@@ -30,7 +63,7 @@ namespace Esiur.Resource
         {
             foreach (var s in stores)
                 if (s.Instance.Name == name)
-                    return s;
+                    return s as IStore;
             return null;
         }
 
@@ -44,7 +77,7 @@ namespace Esiur.Resource
             if (resources.ContainsKey(id))
                 return new AsyncReply<IResource>(resources[id]);
             else
-                return null;
+                return new AsyncReply<IResource>(null);
         }
 
         /// <summary>
@@ -59,22 +92,38 @@ namespace Esiur.Resource
             foreach (var store in stores)
                 bag.Add(store.Trigger(ResourceTrigger.Initialize));
 
-            foreach (var store in stores)
-                bag.Add(store.Trigger(ResourceTrigger.SystemInitialized));
 
             bag.Seal();
 
             var rt = new AsyncReply<bool>();
             bag.Then((x) =>
             {
-                foreach(var b in x)
+                foreach (var b in x)
                     if (!b)
                     {
                         rt.Trigger(false);
                         return;
                     }
 
-                rt.Trigger(true);
+                var rBag = new AsyncBag<bool>();
+                foreach (var rk in resources)
+                    rBag.Add(rk.Value.Trigger(ResourceTrigger.SystemInitialized));
+
+                rBag.Seal();
+
+                rBag.Then(y =>
+                {
+                    foreach (var b in y)
+                        if (!b)
+                        {
+                            rt.Trigger(false);
+                            return;
+                        }
+
+                    rt.Trigger(true);
+                    storeIsOpen = true;
+                });
+
             });
 
             return rt;
@@ -122,6 +171,63 @@ namespace Esiur.Resource
             return rt;
         }
 
+
+        private static IResource[] QureyIn(string[] path, int index, AutoList<IResource, Instance> resources)
+        {
+            var rt = new List<IResource>();
+
+            if (index == path.Length - 1)
+            {
+                if (path[index] == "")
+                    foreach (IResource child in resources)
+                      rt.Add(child);
+                 else
+                    foreach (IResource child in resources)
+                        if (child.Instance.Name == path[index])
+                            rt.Add(child);
+            }
+            else
+                foreach (IResource child in resources)
+                    if (child.Instance.Name == path[index])
+                        rt.AddRange(QureyIn(path, index+1, child.Instance.Children));
+
+            return rt.ToArray();
+        }
+
+        public static AsyncReply<IResource[]> Query(string path)
+        {
+
+
+            if (path == null || path == "")
+            {
+                var roots = stores.Where(s => s.Instance.Parents.Count == 0).ToArray();
+                return new AsyncReply<IResource[]>(roots);
+            }
+            else
+            {
+                var rt = new AsyncReply<IResource[]>();
+                Get(path).Then(x =>
+                {
+                    var p = path.Split('/');
+
+                    if (x == null)
+                    {
+                        rt.Trigger(QureyIn(p, 0, stores));
+                    }
+                    else
+                    {
+                        var ar = QureyIn(p, 0, stores).Where(r => r != x).ToList();
+                        ar.Insert(0, x);
+                        rt.Trigger(ar.ToArray());
+                    }
+                });
+
+                return rt;
+
+            }
+
+        }
+
         /// <summary>
         /// Get a resource by its path.
         /// Resource path is sperated by '/' character, e.g. "system/http".
@@ -169,9 +275,12 @@ namespace Esiur.Resource
         /// <param name="name">Resource name.</param>
         /// <param name="store">IStore that manages the resource. Can be null if the resource is a store.</param>
         /// <param name="parent">Parent resource. if not presented the store becomes the parent for the resource.</param>
-        public static void Put(IResource resource, string name, IStore store = null, IResource parent = null)
+        public static void Put(IResource resource, string name, IStore store = null, IResource parent = null, ResourceTemplate customTemplate = null, ulong age = 0, IPermissionsManager manager = null)
         {
-            resource.Instance = new Instance(resourceCounter++, name, resource, store);
+            resource.Instance = new Instance(resourceCounter++, name, resource, store, customTemplate, age);
+
+            if (manager != null)
+                resource.Instance.Managers.Add(manager);
 
             if (store == parent)
                 parent = null;
@@ -185,18 +294,26 @@ namespace Esiur.Resource
                 parent.Instance.Children.Add(resource);
 
                 
+
             if (resource is IStore)
+            {
                 stores.Add(resource as IStore);
+                StoreConnected?.Invoke(resource as IStore, name);
+            }
             else
                 store.Put(resource);
 
             resources.Add(resource.Instance.Id, resource);
+
+            if (!storeIsOpen)
+                 resource.Trigger(ResourceTrigger.Initialize);
+
         }
 
-        public static T New<T>(string name, IStore store = null, IResource parent = null)
+        public static T New<T>(string name, IStore store = null, IResource parent = null, IPermissionsManager manager = null)
         {
             var res = Activator.CreateInstance(typeof(T)) as IResource;
-            Put(res, name, store, parent);
+            Put(res, name, store, parent, null, 0, manager);
             return (T)res;
         }
 
@@ -206,7 +323,7 @@ namespace Esiur.Resource
         /// <param name="template">Resource template.</param>
         public static void PutTemplate(ResourceTemplate template)
         {
-            if (templates.ContainsKey(template.ClassId))
+            if (!templates.ContainsKey(template.ClassId))
                 templates.Add(template.ClassId, template);
         }
 
@@ -254,5 +371,36 @@ namespace Esiur.Resource
 
             return null; 
         }
+
+        public static bool Remove(IResource resource)
+        {
+
+            if (resource.Instance == null)
+                return false;
+
+            if (resources.ContainsKey(resource.Instance.Id)) 
+                resources.Remove(resource.Instance.Id);
+            else
+                return false;
+
+            if (resource is IStore)
+            {
+                stores.Remove(resource as IStore);
+
+                // remove all objects associated with the store
+                var toBeRemoved = resources.Values.Where(x => x.Instance.Store == resource);
+                foreach (var o in toBeRemoved)
+                    Remove(o);
+
+                StoreDisconnected?.Invoke(resource as IStore);
+            }
+            
+            if (resource.Instance.Store != null)
+                resource.Instance.Store.Remove(resource);
+
+            resource.Destroy();
+
+            return true;
+         }
     }
 }

Esiur/Security/Authority/AlienAuthentication.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -8,8 +32,8 @@ namespace Esiur.Security.Authority
 {
     public class AlienAuthentication : Authentication
     {
-        public AlienAuthentication(Certificate certificate, AuthenticationState state) : 
-            base(certificate, state, AuthenticationType.Alien)
+        public AlienAuthentication() : 
+            base(AuthenticationType.Alien)
         {
 
         }

Esiur/Security/Authority/Authentication.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -8,28 +32,31 @@ namespace Esiur.Security.Authority
 {
     public class Authentication
     {
-        Certificate certificate;
-        AuthenticationState state;
-        AuthenticationType type;
+         AuthenticationType type;
          
-        public Certificate Certificate
-        {
-            get { return certificate; }
-        }
+
+        public string Username { get; set; }
+        public Certificate Certificate { get; set; } 
+        public string Domain { get; set; }
+
+        public string FullName => Username + "@" + Domain;
+
+        public Source Source { get; } = new Source();
 
         public AuthenticationState State
         {
-            get { return state; }
+            get;
+            set;
         }
 
         public AuthenticationType Type
         {
-            get { return type; }
+            get => type;
         }
 
-        public Authentication(Certificate certificate, AuthenticationState state, AuthenticationType type)
+        public Authentication(AuthenticationType type)
         {
-
+            this.type = type;
         }
     }
 }

Esiur/Security/Authority/AuthenticationState.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Security/Authority/AuthenticationType.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Security/Authority/CACertificate.cs

@@ -1,4 +1,28 @@
-using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
 using Esiur.Engine;
 using Esiur.Misc;
 using Esiur.Security.Cryptography;

Esiur/Security/Authority/Certificate.cs

@@ -1,4 +1,28 @@
-using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
 using Esiur.Engine;
 using Esiur.Misc;
 using Esiur.Security.Cryptography;

Esiur/Security/Authority/CertificateType.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Security/Authority/ClientAuthentication.cs

@@ -1,4 +1,27 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -8,10 +31,42 @@ namespace Esiur.Security.Authority
 {
     public class ClientAuthentication : Authentication
     {
-        public ClientAuthentication(byte[] credentials, UserCertificate certificate, AuthenticationState state) 
-            : base(certificate, state, AuthenticationType.Client)
+        /*
+        string username;
+        byte[] password;
+        string domain;
+        byte[] token;
+        UserCertificate certificate;
+
+        public string Username => username;
+        public byte[] Password => password;
+        //public string Domain => domain;
+        public byte[] Token => token;
+
+        public byte[] Nounce { get; set; }
+        */
+
+        public ClientAuthentication()
+            :base(AuthenticationType.Client)
         {
 
         }
+
+
+        /*
+        public ClientAuthentication(byte[] token)
+            : base(AuthenticationType.Client)
+        {
+            this.token = token;
+        }
+
+        public ClientAuthentication(string username, byte[] password) 
+            : base(AuthenticationType.Client)
+        {
+            this.username = username;
+            this.password = password;
+            //this.domain = domain;
+        }
+        */
     }
 }

Esiur/Security/Authority/CoHostAuthentication.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -8,8 +32,8 @@ namespace Esiur.Security.Authority
 {
     public class CoHostAuthentication : Authentication
     {
-        public CoHostAuthentication(DomainCertificate certificate, AuthenticationState state) 
-            : base(certificate, state, AuthenticationType.CoHost)
+        public CoHostAuthentication() 
+            : base(AuthenticationType.CoHost)
         {
 
         }

Esiur/Security/Authority/DomainCertificate.cs

@@ -1,4 +1,28 @@
-using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
 using Esiur.Misc;
 using Esiur.Security.Cryptography;
 using Esiur.Security.Integrity;

Esiur/Security/Authority/HostAuthentication.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -8,10 +32,12 @@ namespace Esiur.Security.Authority
 {
     public class HostAuthentication : Authentication
     {
-        public HostAuthentication(DomainCertificate certificate, AuthenticationState state) 
-            : base(certificate, state, AuthenticationType.Host)
+
+        public HostAuthentication()
+            :base(AuthenticationType.Host)
         {
 
         }
-    }
+         
+     }
 }

Esiur/Security/Authority/Session.cs

@@ -1,4 +1,27 @@
-using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+using Esiur.Data;
 using Esiur.Engine;
 using Esiur.Net;
 using Esiur.Resource;
@@ -12,12 +35,27 @@ namespace Esiur.Security.Authority
 {
     public class Session
     {
-        Authentication Authentication { get; }
-        Source Source { get; }
-        string Id { get; }
-        DateTime Creation { get; }
-        DateTime Modification { get; }
-        //KeyList<string, object> Variables { get; }
+        public Authentication LocalAuthentication => localAuth;
+        public Authentication RemoteAuthentication => remoteAuth;
+
+       // public Source Source { get; }
+        public byte[] Id { get; set; }
+        public DateTime Creation { get; }
+        public DateTime Modification { get; }
+        public KeyList<string, object> Variables {get;} = new KeyList<string, object>();
+
+         //KeyList<string, object> Variables { get; }
         //IStore Store { get; }
+
+        //string id;
+        Authentication localAuth, remoteAuth;
+        //string domain;
+
+        public Session(Authentication localAuthentication, Authentication remoteAuthentication)
+        {
+             
+            this.localAuth = localAuthentication;
+            this.remoteAuth = remoteAuthentication;
+        }
     }
 }

Esiur/Security/Authority/Source.cs

@@ -1,4 +1,28 @@
-using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -10,21 +34,26 @@ namespace Esiur.Security.Authority
     public class Source
     {
 
-        string id;
-        KeyList<SourceAttributeType, Structure> attributes;
+       //string id;
+        KeyList<SourceAttributeType, object> attributes;
 
-        string Id { get { return id; } }
+        public string Id { get; set; }
 
-        KeyList<SourceAttributeType, Structure> Attributes
+        public KeyList<SourceAttributeType, object> Attributes
         {
-            get { return attributes; }
+            get => attributes; 
         }
 
-        public Source(string id, KeyList<SourceAttributeType, Structure> attributes)
+        public Source(string id, KeyList<SourceAttributeType, object> attributes)
         {
-            this.id = id;
+            Id = id;
             this.attributes = attributes;
         }
 
+        public Source()
+        {
+            attributes = new KeyList<SourceAttributeType, object>();
+        }
+
     }
 }

Esiur/Security/Authority/SourceAttributeType.cs

@@ -1,4 +1,28 @@
-using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -11,7 +35,10 @@ namespace Esiur.Security.Authority
     {
         Mobility, // Stationary/Mobile
         CPU, // Arc, Speed, Cores
-        IP, // IPv4, IPv6 Address
+        IPv4, // IPv4, IPv6 Address
+        IPv6, // IPv4, IPv6 Address
+        Port, // TCP or UDP port
+        Proxy, // Proxy
         Route, // Trace Root
         Location, // Lon, Lat, Alt, Accuracy
         OS, // OS name, version, distro, kernel

Esiur/Security/Authority/UserCertificate.cs

@@ -1,4 +1,28 @@
-using Esiur.Data;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
 using Esiur.Security.Cryptography;
 using Esiur.Security.Integrity;
 using System;

Esiur/Security/Cryptography/AsymetricEncryptionAlgorithmType.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Security/Cryptography/SymetricEncryptionAlgorithmType.cs

@@ -1,4 +1,27 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Security/Integrity/HashFunctionType.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

Esiur/Security/Membership/IDomain.cs

@@ -1,4 +1,28 @@
-using Esiur.Resource;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Resource;
 using Esiur.Security.Authority;
 using System;
 using System.Collections.Generic;

Esiur/Security/Membership/IMembership.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -22,8 +46,10 @@ namespace Esiur.Security.Membership
         //DomainCertificate[] GetDomainCertificates(string domain);
 
 
-        bool UserExists(string username);
+        AsyncReply<bool> UserExists(string username, string domain);
         AsyncReply<byte[]> GetPassword(string username, string domain);
+        AsyncReply<bool> Login(Session session);
+        AsyncReply<bool> Logout(Session session);
 
         //ClientAuthentication Authenticate(string username, byte[] credentials, int flag);
         //HostAuthentication Authenticate(DomainCertificate domainCertificate);

Esiur/Security/Membership/IUser.cs

@@ -1,4 +1,28 @@
-using Esiur.Engine;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Engine;
 using System;
 using System.Collections.Generic;
 using System.Linq;

Esiur/Security/Permissions/ActionType.cs

@@ -1,4 +1,28 @@
-using System;
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -11,7 +35,16 @@ namespace Esiur.Security.Permissions
         Attach,
         Delete,
         Execute,
-        Get,
-        Set,
+        GetProperty,
+        SetProperty,
+        CreateResource,
+        UpdateAttributes,
+        InquireAttributes,
+        AddParent,
+        RemoveParent,
+        AddChild,
+        RemoveChild,
+        Rename,
+        ReceiveEvent
     }
 }

Esiur/Security/Permissions/IPermissionManager.cs

@@ -1,18 +0,0 @@
-using Esiur.Engine;
-using Esiur.Net;
-using Esiur.Resource;
-using Esiur.Resource.Template;
-using Esiur.Security.Authority;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace Esiur.Security.Permissions
-{
-    public interface IPermissionManager
-    {
-        bool Applicable(IResource resource, Session session, ActionType action, MemberTemplate member);
-    }
-}

Esiur/Security/Permissions/IPermissionsManager.cs

@@ -0,0 +1,56 @@
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using Esiur.Data;
+using Esiur.Engine;
+using Esiur.Net;
+using Esiur.Resource;
+using Esiur.Resource.Template;
+using Esiur.Security.Authority;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Esiur.Security.Permissions
+{
+    public interface IPermissionsManager
+    {
+        /// <summary>
+        /// Check for permission.
+        /// </summary>
+        /// <param name="resource">IResource.</param>
+        /// <param name="session">Caller sessions.</param>
+        /// <param name="action">Action type</param>
+        /// <param name="member">Function, property or event to check for permission.</param>
+        /// <param name="inquirer">Permission inquirer object.</param>
+        /// <returns>Allowed or denined.</returns>
+        Ruling Applicable(IResource resource, Session session, ActionType action, MemberTemplate member, object inquirer = null);
+
+        bool Initialize(Structure settings, IResource resource);
+
+        Structure Settings { get; }
+    }
+}

Esiur/Security/Permissions/ParentalPermissionsManager.cs

@@ -0,0 +1,60 @@
+/*
+ 
+Copyright (c) 2017 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Esiur.Data;
+using Esiur.Engine;
+using Esiur.Resource;
+using Esiur.Resource.Template;
+using Esiur.Security.Authority;
+
+namespace Esiur.Security.Permissions
+{
+    public class ParentalPermissionsManager : IPermissionsManager
+    {
+        Structure settings;
+
+        public Structure Settings => settings;
+
+        public Ruling Applicable(IResource resource, Session session, ActionType action, MemberTemplate member, object inquirer = null)
+        {
+
+            foreach (IResource parent in resource.Instance.Parents)
+            {
+                var ruling = parent.Instance.Applicable(session, action, member, inquirer);
+                if (ruling != Ruling.DontCare)
+                    return ruling;
+            }
+
+            return Ruling.DontCare;
+        }
+
+        public bool Initialize(Structure settings, IResource resource)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Esiur/Security/Permissions/Ruling.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Esiur.Security.Permissions
+{
+    public enum Ruling
+    {
+        Denied,
+        Allowed,
+        DontCare
+    }
+}