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This commit is contained in:
Ahmed Zamil
2019-12-02 03:16:19 +03:00
parent ba1fc9c18e
commit 66fd62c449
122 changed files with 443 additions and 409 deletions
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312
Esyur/Net/Packets/HTTPRequestPacket.cs Normal file
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/*
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 Esyur.Misc;
using Esyur.Data;
using System.Net;
namespace Esyur.Net.Packets
{
public class HTTPRequestPacket : Packet
{
public enum HTTPMethod:byte
{
GET,
POST,
HEAD,
PUT,
DELETE,
OPTIONS,
TRACE,
CONNECT,
UNKNOWN
}
public StringKeyList Query;
public HTTPMethod Method;
public StringKeyList Headers;
public bool WSMode;
public string Version;
public StringKeyList Cookies; // String
public string URL; /// With query
public string Filename; /// Without query
//public byte[] PostContents;
public KeyList<string, object> PostForms;
public byte[] Message;
private HTTPMethod getMethod(string method)
{
switch (method.ToLower())
{
case "get":
return HTTPMethod.GET;
case "post":
return HTTPMethod.POST;
case "head":
return HTTPMethod.HEAD;
case "put":
return HTTPMethod.PUT;
case "delete":
return HTTPMethod.DELETE;
case "options":
return HTTPMethod.OPTIONS;
case "trace":
return HTTPMethod.TRACE;
case "connect":
return HTTPMethod.CONNECT;
default:
return HTTPMethod.UNKNOWN;
}
}
public override string ToString()
{
return "HTTPRequestPacket"
+ "\n\tVersion: " + Version
+ "\n\tMethod: " + Method
+ "\n\tURL: " + URL
+ "\n\tMessage: " + (Message != null ? Message.Length.ToString() : "NULL");
}
public override long Parse(byte[] data, uint offset, uint ends)
{
string[] sMethod = null;
string[] sLines = null;
uint headerSize = 0;
for (uint i = offset; i < ends - 3; i++)
{
if (data[i] == '\r' && data[i + 1] == '\n'
&& data[i + 2] == '\r' && data[i + 3] == '\n')
{
sLines = Encoding.ASCII.GetString(data, (int)offset,(int)( i - offset)).Split(new string[] { "\r\n" },
StringSplitOptions.None);
headerSize = i + 4;
break;
}
}
if (headerSize == 0)
return -1;
Cookies = new StringKeyList();
PostForms = new KeyList<string, object>();
Query = new StringKeyList();
Headers = new StringKeyList();
sMethod = sLines[0].Split(' ');
Method = getMethod(sMethod[0].Trim());
if (sMethod.Length == 3)
{
sMethod[1] = WebUtility.UrlDecode(sMethod[1]);
if (sMethod[1].Length >= 7)
{
if (sMethod[1].Substring(0, 7) == "http://")
{
sMethod[1] = sMethod[1].Substring(sMethod[1].IndexOf("/", 7));
}
}
URL = sMethod[1].Trim();
if (URL.IndexOf("?", 0) != -1)
{
Filename = URL.Split(new char[] { '?' }, 2)[0];
}
else
{
Filename = URL;
}
if (Filename.IndexOf("%", 0) != -1)
{
Filename = WebUtility.UrlDecode(Filename);
}
Version = sMethod[2].Trim();
}
// Read all headers
for (int i = 1; i < sLines.Length; i++)
{
if (sLines[i] == String.Empty)
{
// Invalid header
return 0;
}
if (sLines[i].IndexOf(':') == -1)
{
// Invalid header
return 0;
}
string[] header = sLines[i].Split(new char[] { ':' }, 2);
header[0] = header[0].ToLower();
Headers[header[0]] = header[1].Trim();
if (header[0] == "cookie")
{
string[] cookies = header[1].Split(';');
foreach (string cookie in cookies)
{
if (cookie.IndexOf('=') != -1)
{
string[] splitCookie = cookie.Split('=');
splitCookie[0] = splitCookie[0].Trim();
splitCookie[1] = splitCookie[1].Trim();
if (!(Cookies.ContainsKey(splitCookie[0].Trim())))
Cookies.Add(splitCookie[0], splitCookie[1]);
}
else
{
if (!(Cookies.ContainsKey(cookie.Trim())))
{
Cookies.Add(cookie.Trim(), String.Empty);
}
}
}
}
}
// Query String
if (URL.IndexOf("?", 0) != -1)
{
string[] SQ = URL.Split(new char[] { '?' }, 2)[1].Split('&');
foreach (string S in SQ)
{
if (S.IndexOf("=", 0) != -1)
{
string[] qp = S.Split(new char[] { '=' }, 2);
if (!Query.ContainsKey(WebUtility.UrlDecode(qp[0])))
{
Query.Add(WebUtility.UrlDecode(qp[0]), WebUtility.UrlDecode(qp[1]));
}
}
else
{
if (!(Query.ContainsKey(WebUtility.UrlDecode(S))))
{
Query.Add(WebUtility.UrlDecode(S), null);
}
}
}
}
// Post Content-Length
if (Method == HTTPMethod.POST)
{
try
{
uint postSize = uint.Parse((string)Headers["content-length"]);
// check limit
if (postSize > data.Length - headerSize)
return postSize - (data.Length - headerSize);
if (Headers["content-type"].StartsWith("application/x-www-form-urlencoded")
|| Headers["content-type"] == ""
|| Headers["content-type"] == null)
{
string[] PostVars = null;
PostVars = Encoding.UTF8.GetString(data, (int)headerSize, (int)postSize).Split('&');
for (int J = 0; J < PostVars.Length; J++)
{
if (PostVars[J].IndexOf("=") != -1)
{
string key = WebUtility.HtmlDecode(
WebUtility.UrlDecode(PostVars[J].Split(new char[] { '=' }, 2)[0]));
if (PostForms.Contains(key))
PostForms[key] = WebUtility.HtmlDecode(
WebUtility.UrlDecode(PostVars[J].Split(new char[] { '=' }, 2)[1]));
else
PostForms.Add(key, WebUtility.HtmlDecode(
WebUtility.UrlDecode(PostVars[J].Split(new char[] { '=' }, 2)[1])));
}
else
if (PostForms.Contains("unknown"))
PostForms["unknown"] = PostForms["unknown"]
+ "&" + WebUtility.HtmlDecode(WebUtility.UrlDecode(PostVars[J]));
else
PostForms.Add("unknown", WebUtility.HtmlDecode(WebUtility.UrlDecode(PostVars[J])));
}
}
else if (Headers["content-type"].StartsWith("multipart/form-data"))
{
int st = 1;
int ed = 0;
string strBoundry = "--" + Headers["content-type"].Substring(
Headers["content-type"].IndexOf("boundary=", 0) + 9);
string[] sc = Encoding.UTF8.GetString(data, (int)headerSize, (int)postSize).Split(
new string[] { strBoundry }, StringSplitOptions.None);
for (int j = 1; j < sc.Length - 1; j++)
{
string[] ps = sc[j].Split(new string[] { "\r\n\r\n" }, 2, StringSplitOptions.None);
ps[1] = ps[1].Substring(0, ps[1].Length - 2); // remove the empty line
st = ps[0].IndexOf("name=", 0) + 6;
ed = ps[0].IndexOf("\"", st);
PostForms.Add(ps[0].Substring(st, ed - st), ps[1]);
}
}
else
{
//PostForms.Add(Headers["content-type"], Encoding.Default.GetString( ));
Message = DC.Clip(data, headerSize, postSize);
}
return headerSize + postSize;
}
catch
{
return 0;
}
}
return headerSize;
}
}
}

307
Esyur/Net/Packets/HTTPResponsePacket.cs Normal file
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/*
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 Esyur.Misc;
using Esyur.Data;
namespace Esyur.Net.Packets
{
public class HTTPResponsePacket : Packet
{
public enum ComposeOptions : int
{
AllCalculateLength,
AllDontCalculateLength,
SpecifiedHeadersOnly,
DataOnly
}
public enum ResponseCode : int
{
HTTP_SWITCHING = 101,
HTTP_OK = 200,
HTTP_NOTFOUND = 404,
HTTP_SERVERERROR = 500,
HTTP_MOVED = 301,
HTTP_NOTMODIFIED = 304,
HTTP_REDIRECT = 307
}
public class HTTPCookie
{
public string Name;
public string Value;
public DateTime Expires;
public string Path;
public bool HttpOnly;
public string Domain;
public HTTPCookie(string Name, string Value)
{
this.Name = Name;
this.Value = Value;
}
public HTTPCookie(string Name, string Value, DateTime Expires)
{
this.Name = Name;
this.Value = Value;
this.Expires = Expires;
}
public override string ToString()
{
//Set-Cookie: ckGeneric=CookieBody; expires=Sun, 30-Dec-2001 21:00:00 GMT; domain=.com.au; path=/
//Set-Cookie: SessionID=another; expires=Fri, 29 Jun 2006 20:47:11 UTC; path=/
string Cookie = Name + "=" + Value;
if (Expires.Ticks != 0)
{
Cookie += "; expires=" + Expires.ToUniversalTime().ToString("ddd, dd MMM yyyy HH:mm:ss") + " GMT";
}
if (Domain != null)
{
Cookie += "; domain=" + Domain;
}
if (Path != null)
{
Cookie += "; path=" + Path;
}
if (HttpOnly)
{
Cookie += "; HttpOnly";
}
return Cookie;
}
}
public StringKeyList Headers = new StringKeyList(true);
public string Version = "HTTP/1.1";
public byte[] Message;
public ResponseCode Number;
public string Text;
//public DStringDictionary Cookies;
public List<HTTPCookie> Cookies = new List<HTTPCookie>();
public bool Handled;
//public bool ResponseHandled; //flag this as true if you are handling it yourself
//private bool createSession;
//private HTTPServer Server;
//public HTTPSession Session;
public override string ToString()
{
return "HTTPResponsePacket"
+ "\n\tVersion: " + Version
//+ "\n\tMethod: " + Method
//+ "\n\tURL: " + URL
+ "\n\tMessage: " + (Message != null ? Message.Length.ToString() : "NULL");
}
private string MakeHeader(ComposeOptions Options)
{
string header = Version + " " + (int)Number + " " + Text + "\r\n"
+ "Server: Delta Web Server\r\n"
//Fri, 30 Oct 2007 14:19:41 GMT"
+ "Date: " + DateTime.Now.ToUniversalTime().ToString("r") + "\r\n";
if (Options == ComposeOptions.AllCalculateLength && Message != null)
{
Headers["Content-Length"] = Message.Length.ToString();
}
foreach (var kv in Headers)
{
header += kv.Key + ": " + kv.Value + "\r\n";
}
// Set-Cookie: ckGeneric=CookieBody; expires=Sun, 30-Dec-2007 21:00:00 GMT; path=/
// Set-Cookie: ASPSESSIONIDQABBDSQA=IPDPMMMALDGFLMICEJIOCIPM; path=/
foreach (var Cookie in Cookies)
{
header += "Set-Cookie: " + Cookie.ToString() + "\r\n";
}
header += "\r\n";
return header;
}
public bool Compose(ComposeOptions options)
{
List<byte> msg = new List<byte>();
if (options != ComposeOptions.DataOnly)
{
msg.AddRange(Encoding.UTF8.GetBytes(MakeHeader(options)));
}
if (options != ComposeOptions.SpecifiedHeadersOnly)
{
if (Message != null)
msg.AddRange(Message);
}
Data = msg.ToArray();
return true;
}
public override bool Compose()
{
return Compose(ComposeOptions.AllDontCalculateLength);
}
public override long Parse(byte[] data, uint offset, uint ends)
{
string[] sMethod = null;
string[] sLines = null;
uint headerSize = 0;
for (uint i = offset; i < ends - 3; i++)
{
if (data[i] == '\r' && data[i + 1] == '\n'
&& data[i + 2] == '\r' && data[i + 3] == '\n')
{
sLines = Encoding.ASCII.GetString(data, (int)offset, (int)(i - offset)).Split(new string[] { "\r\n" },
StringSplitOptions.None);
headerSize = i + 4;
break;
}
}
if (headerSize == 0)
return -1;
//Cookies = new DStringDictionary();
//Headers = new DStringDictionary(true);
sMethod = sLines[0].Split(' ');
if (sMethod.Length == 3)
{
Version = sMethod[0].Trim();
Number = (ResponseCode)(Convert.ToInt32(sMethod[1].Trim()));
Text = sMethod[2];
}
// Read all headers
for (int i = 1; i < sLines.Length; i++)
{
if (sLines[i] == String.Empty)
{
// Invalid header
return 0;
}
if (sLines[i].IndexOf(':') == -1)
{
// Invalid header
return 0;
}
string[] header = sLines[i].Split(new char[] { ':' }, 2);
header[0] = header[0].ToLower();
Headers[header[0]] = header[1].Trim();
//Set-Cookie: NAME=VALUE; expires=DATE;
if (header[0] == "set-cookie")
{
string[] cookie = header[1].Split(';');
if (cookie.Length >= 1)
{
string[] splitCookie = cookie[0].Split('=');
HTTPCookie c = new HTTPCookie(splitCookie[0], splitCookie[1]);
for (int j = 1; j < cookie.Length; j++)
{
splitCookie = cookie[j].Split('=');
switch (splitCookie[0].ToLower())
{
case "domain":
c.Domain = splitCookie[1];
break;
case "path":
c.Path = splitCookie[1];
break;
case "httponly":
c.HttpOnly = true;
break;
case "expires":
// Wed, 13-Jan-2021 22:23:01 GMT
c.Expires = DateTime.Parse(splitCookie[1]);
break;
}
}
}
}
}
// Content-Length
try
{
uint contentLength = uint.Parse((string)Headers["content-length"]);
// check limit
if (contentLength > data.Length - headerSize)
{
return contentLength - (data.Length - headerSize);
}
Message = DC.Clip(data, offset, contentLength);
return headerSize + contentLength;
}
catch
{
return 0;
}
}
}
}

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Esyur/Net/Packets/IIPAuthPacket.cs Normal file
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/*
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 Esyur.Data;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
namespace Esyur.Net.Packets
{
class IIPAuthPacket : Packet
{
public enum IIPAuthPacketCommand: byte
{
Action = 0,
Declare,
Acknowledge,
Error,
}
public enum IIPAuthPacketAction: byte
{
// Authenticate
AuthenticateHash,
//Challenge,
//CertificateRequest,
//CertificateReply,
//EstablishRequest,
//EstablishReply
NewConnection = 0x20,
ResumeConnection,
ConnectionEstablished = 0x28
}
public enum IIPAuthPacketMethod: byte
{
None,
Certificate,
Credentials,
Token
}
public IIPAuthPacketCommand Command
{
get;
set;
}
public IIPAuthPacketAction Action
{
get;
set;
}
public byte ErrorCode { get; set; }
public string ErrorMessage { get; set; }
public IIPAuthPacketMethod LocalMethod
{
get;
set;
}
public byte[] SourceInfo
{
get;
set;
}
public byte[] Hash
{
get;
set;
}
public byte[] SessionId
{
get;
set;
}
public IIPAuthPacketMethod RemoteMethod
{
get;
set;
}
public string Domain
{
get;
set;
}
public long CertificateId
{
get;set;
}
public string LocalUsername
{
get;
set;
}
public string RemoteUsername
{
get;
set;
}
public byte[] LocalPassword
{
get;
set;
}
public byte[] RemotePassword
{
get;
set;
}
public byte[] LocalToken
{
get;
set;
}
public byte[] RemoteToken
{
get;
set;
}
public byte[] AsymetricEncryptionKey
{
get;
set;
}
public byte[] LocalNonce
{
get;
set;
}
public byte[] RemoteNonce
{
get;
set;
}
private uint dataLengthNeeded;
bool NotEnough(uint offset, uint ends, uint needed)
{
if (offset + needed > ends)
{
dataLengthNeeded = needed - (ends - offset);
return true;
}
else
return false;
}
public override string ToString()
{
return Command.ToString() + " " + Action.ToString();
}
public override long Parse(byte[] data, uint offset, uint ends)
{
var oOffset = offset;
if (NotEnough(offset, ends, 1))
return -dataLengthNeeded;
Command = (IIPAuthPacketCommand)(data[offset] >> 6);
if (Command == IIPAuthPacketCommand.Action)
{
Action = (IIPAuthPacketAction)(data[offset++] & 0x3f);
if (Action == IIPAuthPacketAction.AuthenticateHash)
{
if (NotEnough(offset, ends, 32))
return -dataLengthNeeded;
Hash = data.Clip(offset, 32);
//var hash = new byte[32];
//Buffer.BlockCopy(data, (int)offset, hash, 0, 32);
//Hash = hash;
offset += 32;
}
else if (Action == IIPAuthPacketAction.NewConnection)
{
if (NotEnough(offset, ends, 2))
return -dataLengthNeeded;
var length = data.GetUInt16(offset);
offset += 2;
if (NotEnough(offset, ends, length))
return -dataLengthNeeded;
SourceInfo = data.Clip(offset, length);
//var sourceInfo = new byte[length];
//Buffer.BlockCopy(data, (int)offset, sourceInfo, 0, length);
//SourceInfo = sourceInfo;
offset += 32;
}
else if (Action == IIPAuthPacketAction.ResumeConnection
|| Action == IIPAuthPacketAction.ConnectionEstablished)
{
//var sessionId = new byte[32];
if (NotEnough(offset, ends, 32))
return -dataLengthNeeded;
SessionId = data.Clip(offset, 32);
//Buffer.BlockCopy(data, (int)offset, sessionId, 0, 32);
//SessionId = sessionId;
offset += 32;
}
}
else if (Command == IIPAuthPacketCommand.Declare)
{
RemoteMethod = (IIPAuthPacketMethod)((data[offset] >> 4) & 0x3);
LocalMethod = (IIPAuthPacketMethod)((data[offset] >> 2) & 0x3);
var encrypt = ((data[offset++] & 0x2) == 0x2);
if (NotEnough(offset, ends, 1))
return -dataLengthNeeded;
var domainLength = data[offset++];
if (NotEnough(offset, ends, domainLength))
return -dataLengthNeeded;
var domain = data.GetString(offset, domainLength);
Domain = domain;
offset += domainLength;
if (RemoteMethod == IIPAuthPacketMethod.Credentials)
{
if (LocalMethod == IIPAuthPacketMethod.None)
{
if (NotEnough(offset, ends, 33))
return -dataLengthNeeded;
//var remoteNonce = new byte[32];
//Buffer.BlockCopy(data, (int)offset, remoteNonce, 0, 32);
//RemoteNonce = remoteNonce;
RemoteNonce = data.Clip(offset, 32);
offset += 32;
var length = data[offset++];
if (NotEnough(offset, ends, length))
return -dataLengthNeeded;
RemoteUsername = data.GetString(offset, length);
offset += length;
}
}
if (encrypt)
{
if (NotEnough(offset, ends, 2))
return -dataLengthNeeded;
var keyLength = data.GetUInt16(offset);
offset += 2;
if (NotEnough(offset, ends, keyLength))
return -dataLengthNeeded;
//var key = new byte[keyLength];
//Buffer.BlockCopy(data, (int)offset, key, 0, keyLength);
//AsymetricEncryptionKey = key;
AsymetricEncryptionKey = data.Clip(offset, keyLength);
offset += keyLength;
}
}
else if (Command == IIPAuthPacketCommand.Acknowledge)
{
RemoteMethod = (IIPAuthPacketMethod)((data[offset] >> 4) & 0x3);
LocalMethod = (IIPAuthPacketMethod)((data[offset] >> 2) & 0x3);
var encrypt = ((data[offset++] & 0x2) == 0x2);
if (NotEnough(offset, ends, 1))
return -dataLengthNeeded;
if (RemoteMethod == IIPAuthPacketMethod.Credentials)
{
if (LocalMethod == IIPAuthPacketMethod.None)
{
if (NotEnough(offset, ends, 32))
return -dataLengthNeeded;
/*
var remoteNonce = new byte[32];
Buffer.BlockCopy(data, (int)offset, remoteNonce, 0, 32);
RemoteNonce = remoteNonce;
*/
RemoteNonce = data.Clip(offset, 32);
offset += 32;
}
}
if (encrypt)
{
if (NotEnough(offset, ends, 2))
return -dataLengthNeeded;
var keyLength = data.GetUInt16(offset);
offset += 2;
if (NotEnough(offset, ends, keyLength))
return -dataLengthNeeded;
//var key = new byte[keyLength];
//Buffer.BlockCopy(data, (int)offset, key, 0, keyLength);
//AsymetricEncryptionKey = key;
AsymetricEncryptionKey = data.Clip(offset, keyLength);
offset += keyLength;
}
}
else if (Command == IIPAuthPacketCommand.Error)
{
if (NotEnough(offset, ends, 4))
return -dataLengthNeeded;
offset++;
ErrorCode = data[offset++];
var cl = data.GetUInt16(offset);
offset += 2;
if (NotEnough(offset, ends, cl))
return -dataLengthNeeded;
ErrorMessage = data.GetString(offset, cl);
offset += cl;
}
return offset - oOffset;
}
}
}

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Esyur/Net/Packets/IIPPacket.cs Normal file
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/*
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 Esyur.Data;
using Esyur.Core;
using Esyur.Misc;
using Esyur.Net.Packets;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Esyur.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,
Report,
}
public enum IIPPacketEvent : byte
{
// Event Manage
ResourceReassigned = 0,
ResourceDestroyed,
ChildAdded,
ChildRemoved,
Renamed,
// Event Invoke
PropertyUpdated = 0x10,
EventOccurred,
// Attribute
AttributesUpdated = 0x18
}
public enum IIPPacketAction : byte
{
// Request Manage
AttachResource = 0,
ReattachResource,
DetachResource,
CreateResource,
DeleteResource,
AddChild,
RemoveChild,
RenameResource,
// Request Inquire
TemplateFromClassName = 0x8,
TemplateFromClassId,
TemplateFromResourceId,
QueryLink,
ResourceHistory,
ResourceChildren,
ResourceParents,
// Request Invoke
InvokeFunctionArrayArguments = 0x10,
GetProperty,
GetPropertyIfModified,
SetProperty,
InvokeFunctionNamedArguments,
// 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
{
get;
set;
}
public IIPPacketAction Action
{
get;
set;
}
public IIPPacketEvent Event
{
get;
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 ulong ResourceAge { get; set; }
public byte[] Content { get; set; }
public ushort ErrorCode { get; set; }
public string ErrorMessage { get; set; }
public string ClassName { get; set; }
public string ResourceLink { get; set; }
public Guid ClassId { get; set; }
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()
{
return base.Compose();
}
bool NotEnough(uint offset, uint ends, uint needed)
{
if (offset + needed > ends)
{
dataLengthNeeded = needed - (ends - offset);
//dataLengthNeeded = needed - (ends - originalOffset);
return true;
}
else
return false;
}
public override long Parse(byte[] data, uint offset, uint ends)
{
originalOffset = offset;
if (NotEnough(offset, ends, 1))
return -dataLengthNeeded;
PreviousCommand = Command;
Command = (IIPPacketCommand)(data[offset] >> 6);
if (Command == IIPPacketCommand.Event)
{
Event = (IIPPacketEvent)(data[offset++] & 0x3f);
if (NotEnough(offset, ends, 4))
return -dataLengthNeeded;
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))
return -dataLengthNeeded;
CallbackId = data.GetUInt32(offset);
offset += 4;
}
if (Command == IIPPacketCommand.Event)
{
if (Event == IIPPacketEvent.ResourceReassigned)
{
if (NotEnough(offset, ends, 4))
return -dataLengthNeeded;
NewResourceId = data.GetUInt32(offset);
offset += 4;
}
else if (Event == IIPPacketEvent.ResourceDestroyed)
{
// 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))
return -dataLengthNeeded;
MethodIndex = data[offset++];
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;
}
}
else if (Event == IIPPacketEvent.EventOccurred)
{
if (NotEnough(offset, ends, 5))
return -dataLengthNeeded;
MethodIndex = data[offset++];
var cl = data.GetUInt32(offset);
offset += 4;
Content = data.Clip(offset, cl);
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)
{
if (Action == IIPPacketAction.AttachResource)
{
if (NotEnough(offset, ends, 4))
return -dataLengthNeeded;
ResourceId = data.GetUInt32(offset);
offset += 4;
}
else if (Action == IIPPacketAction.ReattachResource)
{
if (NotEnough(offset, ends, 12))
return -dataLengthNeeded;
ResourceId = data.GetUInt32(offset);
offset += 4;
ResourceAge = data.GetUInt64(offset);
offset += 8;
}
else if (Action == IIPPacketAction.DetachResource)
{
if (NotEnough(offset, ends, 4))
return -dataLengthNeeded;
ResourceId = data.GetUInt32(offset);
offset += 4;
}
else if (Action == IIPPacketAction.CreateResource)
{
if (NotEnough(offset, ends, 12))
return -dataLengthNeeded;
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;
this.Content = data.Clip(offset, cl);
}
else if (Action == IIPPacketAction.DeleteResource)
{
if (NotEnough(offset, ends, 4))
return -dataLengthNeeded;
ResourceId = data.GetUInt32(offset);
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))
return -dataLengthNeeded;
var cl = data[offset++];
if (NotEnough(offset, ends, cl))
return -dataLengthNeeded;
ClassName = data.GetString(offset, cl);
offset += cl;
}
else if (Action == IIPPacketAction.TemplateFromClassId)
{
if (NotEnough(offset, ends, 16))
return -dataLengthNeeded;
ClassId = data.GetGuid(offset);
offset += 16;
}
else if (Action == IIPPacketAction.TemplateFromResourceId)
{
if (NotEnough(offset, ends, 4))
return -dataLengthNeeded;
ResourceId = data.GetUInt32(offset);
offset += 4;
}
else if (Action == IIPPacketAction.QueryLink)
{
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.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.InvokeFunctionArrayArguments
|| Action == IIPPacketAction.InvokeFunctionNamedArguments)
{
if (NotEnough(offset, ends, 9))
return -dataLengthNeeded;
ResourceId = data.GetUInt32(offset);
offset += 4;
MethodIndex = data[offset++];
var cl = data.GetUInt32(offset);
offset += 4;
if (NotEnough(offset, ends, cl))
return -dataLengthNeeded;
Content = data.Clip(offset, cl);
offset += cl;
}
else if (Action == IIPPacketAction.GetProperty)
{
if (NotEnough(offset, ends, 5))
return -dataLengthNeeded;
ResourceId = data.GetUInt32(offset);
offset += 4;
MethodIndex = data[offset++];
}
else if (Action == IIPPacketAction.GetPropertyIfModified)
{
if (NotEnough(offset, ends, 9))
return -dataLengthNeeded;
ResourceId = data.GetUInt32(offset);
offset += 4;
MethodIndex = data[offset++];
ResourceAge = data.GetUInt64(offset);
offset += 8;
}
else if (Action == IIPPacketAction.SetProperty)
{
if (NotEnough(offset, ends, 6))
return -dataLengthNeeded;
ResourceId = data.GetUInt32(offset);
offset += 4;
MethodIndex = data[offset++];
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;
}
}
// 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)
{
if (Action == IIPPacketAction.AttachResource
|| Action == IIPPacketAction.ReattachResource)
{
if (NotEnough(offset, ends, 26))
return -dataLengthNeeded;
ClassId = data.GetGuid(offset);
offset += 16;
ResourceAge = data.GetUInt64(offset);
offset += 8;
uint cl = data.GetUInt16(offset);
offset += 2;
if (NotEnough(offset, ends, cl))
return -dataLengthNeeded;
ResourceLink = data.GetString(offset, cl);
offset += cl;
if (NotEnough(offset, ends, 4))
return -dataLengthNeeded;
cl = data.GetUInt32(offset);
offset += 4;
if (NotEnough(offset, ends, cl))
return -dataLengthNeeded;
Content = data.Clip(offset, cl);
offset += cl;
}
else if (Action == IIPPacketAction.DetachResource)
{
// nothing to do
}
else if (Action == IIPPacketAction.CreateResource)
{
if (NotEnough(offset, ends, 20))
return -dataLengthNeeded;
//ClassId = data.GetGuid(offset);
//offset += 16;
ResourceId = data.GetUInt32(offset);
offset += 4;
}
else if (Action == IIPPacketAction.DetachResource)
{
// nothing to do
}
// Inquire
else if (Action == IIPPacketAction.TemplateFromClassName
|| Action == IIPPacketAction.TemplateFromClassId
|| 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;
var cl = data.GetUInt32(offset);
offset += 4;
if (NotEnough(offset, ends, cl))
return -dataLengthNeeded;
Content = data.Clip(offset, cl);
offset += cl;
}
else if (Action == IIPPacketAction.InvokeFunctionArrayArguments
|| Action == IIPPacketAction.InvokeFunctionNamedArguments
|| Action == IIPPacketAction.GetProperty
|| Action == IIPPacketAction.GetPropertyIfModified)
{
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;
}
}
else if (Action == IIPPacketAction.SetProperty)
{
// nothing to do
}
}
else if (Command == IIPPacketCommand.Report)
{
if (Report == IIPPacketReport.ManagementError)
{
if (NotEnough(offset, ends, 2))
return -dataLengthNeeded;
ErrorCode = data.GetUInt16(offset);
offset += 2;
}
else if (Report == IIPPacketReport.ExecutionError)
{
if (NotEnough(offset, ends, 2))
return -dataLengthNeeded;
ErrorCode = data.GetUInt16(offset);
offset += 2;
if (NotEnough(offset, ends, 2))
return -dataLengthNeeded;
var cl = data.GetUInt16(offset);
offset += 2;
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;
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 - originalOffset;
}
}
}

22
Esyur/Net/Packets/IIPPacketAttachInfo.cs Normal file
View File

@ -0,0 +1,22 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Esyur.Net.Packets
{
struct IIPPacketAttachInfo
{
public string Link;
public ulong Age;
public byte[] Content;
public Guid ClassId;
public IIPPacketAttachInfo(Guid classId, ulong age, string link, byte[] content)
{
ClassId = classId;
Age = age;
Content = content;
Link = link;
}
}
}

369
Esyur/Net/Packets/Packet.cs Normal file
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@ -0,0 +1,369 @@
/********************************************************************************\
* Uruky Project *
* *
* Copyright (C) 2006 Ahmed Zamil - ahmed@dijlh.com *
* http://www.dijlh.com *
* *
* 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. *
* *
* File: Packet.cs *
* Description: Ethernet/ARP/IPv4/TCP/UDP Packet Decoding & Encoding Class *
* Compatibility: .Net Framework 2.0 / Mono 1.1.8 *
* *
\********************************************************************************/
using System;
using System.Text;
using Esyur.Misc;
using Esyur.Net.DataLink;
using System.Net.NetworkInformation;
using Esyur.Data;
namespace Esyur.Net.Packets
{
internal static class Functions
{
public static void AddData(ref byte[] dest, byte[] src)
{
int I = 0;
if (src == null)
{
return;
}
if (dest != null)
{
I = dest.Length;
Array.Resize(ref dest, dest.Length + src.Length);
//dest = (byte[])Resize(dest, dest.Length + src.Length);
}
else
{
dest = new byte[src.Length];
}
Array.Copy(src, 0, dest, I, src.Length);
}
/*
public static Array Resize(Array array, int newSize)
{
Type myType = Type.GetType(array.GetType().FullName.TrimEnd('[', ']'));
Array nA = Array.CreateInstance(myType, newSize);
Array.Copy(array, nA, (newSize > array.Length ? array.Length : newSize));
return nA;
} */
//Computes the checksum used in IP, ARP..., ie the
// "The 16 bit one's complement of the one 's complement sum
//of all 16 bit words" as seen in RFCs
// Returns a 4 characters hex string
// data's lenght must be multiple of 4, else zero padding
public static ushort IP_CRC16(byte[] data)
{
ulong Sum = 0;
bool Padding = false;
/// * Padding if needed
if (data.Length % 2 != 0)
{
Array.Resize(ref data, data.Length + 1);
//data = (byte[])Resize(data, data.Length + 1);
Padding = true;
}
int count = data.Length;
///* add 16-bit words */
while (count > 0) //1)
{
///* this is the inner loop */
Sum += GetInteger(data[count - 2], data[count - 1]);
///* Fold 32-bit sum to 16-bit */
while (Sum >> 16 != 0)
{
Sum = (Sum & 0XFFFF) + (Sum >> 16);
}
count -= 2;
}
/// * reverse padding
if (Padding)
{
Array.Resize(ref data, data.Length - 1);
//data = (byte[])Resize(data, data.Length - 1);
}
///* Return one's compliment of final sum.
//return (ushort)(ushort.MaxValue - (ushort)Sum);
return (ushort)(~Sum);
}
public static ushort GetInteger(byte B1, byte B2)
{
return BitConverter.ToUInt16(new byte[] { B2, B1 }, 0);
//return System.Convert.ToUInt16("&h" + GetHex(B1) + GetHex(B2));
}
public static uint GetLong(byte B1, byte B2, byte B3, byte B4)
{
return BitConverter.ToUInt32(new byte[] { B4, B3, B2, B1 }, 0);
//return System.Convert.ToUInt32("&h" + GetHex(B1) + GetHex(B2) + GetHex(B3) + GetHex(B4));
}
public static string GetHex(byte B)
{
return (((B < 15) ? 0 + System.Convert.ToString(B, 16).ToUpper() : System.Convert.ToString(B, 16).ToUpper()));
}
public static bool GetBit(uint B, byte Pos)
{
//return BitConverter.ToBoolean(BitConverter.GetBytes(B), Pos + 1);
return (B & (uint)(Math.Pow(2, (Pos - 1)))) == (Math.Pow(2, (Pos - 1)));
}
public static ushort RemoveBit(ushort I, byte Pos)
{
return (ushort)RemoveBit((uint)I, Pos);
}
public static uint RemoveBit(uint I, byte Pos)
{
if (GetBit(I, Pos))
{
return I - (uint)(Math.Pow(2, (Pos - 1)));
}
else
{
return I;
}
}
public static void SplitInteger(ushort I, ref byte BLeft, ref byte BRight)
{
byte[] b = BitConverter.GetBytes(I);
BLeft = b[1];
BRight = b[0];
//BLeft = I >> 8;
//BRight = (I << 8) >> 8;
}
public static void SplitLong(uint I, ref byte BLeft, ref byte BLeftMiddle, ref byte BRightMiddle, ref byte BRight)
{
byte[] b = BitConverter.GetBytes(I);
BLeft = b[3];
BLeftMiddle = b[2];
BRightMiddle = b[1];
BRight = b[0];
//BLeft = I >> 24;
//BLeftMiddle = (I << 8) >> 24;
//BRightMiddle = (I << 16) >> 24;
//BRight = (I << 24) >> 24;
}
}
public class PosixTime
{
ulong seconds;
ulong microseconds;
PosixTime(ulong Seconds, ulong Microseconds)
{
seconds = Seconds;
microseconds = Microseconds;
}
public override string ToString()
{
return seconds + "." + microseconds;
}
}
public class Packet
{
//public EtherServer2.EthernetSource Source;
public PacketSource Source;
public DateTime Timestamp;
public enum PPPType : ushort
{
IP = 0x0021, // Internet Protocol version 4 [RFC1332]
SDTP = 0x0049, // Serial Data Transport Protocol (PPP-SDTP) [RFC1963]
IPv6HeaderCompression = 0x004f, // IPv6 Header Compression
IPv6 = 0x0057, // Internet Protocol version 6 [RFC5072]
W8021dHelloPacket = 0x0201, // 802.1d Hello Packets [RFC3518]
IPv6ControlProtocol = 0x8057, // IPv6 Control Protocol [RFC5072]
}
public enum ProtocolType : ushort
{
IP = 0x800, // IPv4
ARP = 0x806, // Address Resolution Protocol
IPv6 = 0x86DD, // IPv6
FrameRelayARP = 0x0808, // Frame Relay ARP [RFC1701]
VINESLoopback = 0x0BAE, // VINES Loopback [RFC1701]
VINESEcho = 0x0BAF, // VINES ECHO [RFC1701]
TransEtherBridging = 0x6558, // TransEther Bridging [RFC1701]
RawFrameRelay = 0x6559, // Raw Frame Relay [RFC1701]
IEE8021QVLAN = 0x8100, // IEEE 802.1Q VLAN-tagged frames (initially Wellfleet)
SNMP = 0x814C, // SNMP [JKR1]
TCPIP_Compression = 0x876B, // TCP/IP Compression [RFC1144]
IPAutonomousSystems = 0x876C, // IP Autonomous Systems [RFC1701]
SecureData = 0x876D, // Secure Data [RFC1701]
PPP = 0x880B, // PPP [IANA]
MPLS = 0x8847, // MPLS [RFC5332]
MPLS_UpstreamAssignedLabel = 0x8848, // MPLS with upstream-assigned label [RFC5332]
PPPoEDiscoveryStage = 0x8863, // PPPoE Discovery Stage [RFC2516]
PPPoESessionStage = 0x8864, // PPPoE Session Stage [RFC2516]
}
/*
public static void GetPacketMACAddresses(Packet packet, out byte[] srcMAC, out byte[] dstMAC)
{
// get the node address
Packet root = packet.RootPacket;
if (root is TZSPPacket)
{
TZSPPacket tp = (TZSPPacket)root;
if (tp.Protocol == TZSPPacket.TZSPEncapsulatedProtocol.Ethernet)
{
EthernetPacket ep = (EthernetPacket)tp.SubPacket;
srcMAC = ep.SourceMAC;
dstMAC = ep.DestinationMAC;
}
else if (tp.Protocol == TZSPPacket.TZSPEncapsulatedProtocol.IEEE802_11)
{
W802_11Packet wp = (W802_11Packet)tp.SubPacket;
srcMAC = wp.SA;
dstMAC = wp.DA;
}
else
{
srcMAC = null;
dstMAC = null;
}
}
else if (root is EthernetPacket)
{
EthernetPacket ep = (EthernetPacket)root;
srcMAC = ep.SourceMAC;
dstMAC = ep.DestinationMAC;
}
else if (root is W802_11Packet)
{
W802_11Packet wp = (W802_11Packet)root;
srcMAC = wp.SA;
dstMAC = wp.DA;
}
else
{
srcMAC = null;
dstMAC = null;
}
}
public static void GetPacketAddresses(Packet packet, ref string srcMAC, ref string dstMAC, ref string srcIP, ref string dstIP)
{
if (packet is TCPv4Packet)
{
if (packet.ParentPacket is IPv4Packet)
{
IPv4Packet ip = (IPv4Packet)packet.ParentPacket;
srcIP = ip.SourceIP.ToString();
dstIP = ip.DestinationIP.ToString();
}
}
// get the node address
Packet root = packet.RootPacket;
if (root is TZSPPacket)
{
TZSPPacket tp = (TZSPPacket)root;
if (tp.Protocol == TZSPPacket.TZSPEncapsulatedProtocol.Ethernet)
{
EthernetPacket ep = (EthernetPacket)tp.SubPacket;
srcMAC = DC.GetPhysicalAddress(ep.SourceMAC, 0).ToString();
dstMAC = DC.GetPhysicalAddress(ep.DestinationMAC, 0).ToString();
}
else if (tp.Protocol == TZSPPacket.TZSPEncapsulatedProtocol.IEEE802_11)
{
W802_11Packet wp = (W802_11Packet)tp.SubPacket;
srcMAC = DC.GetPhysicalAddress(wp.SA, 0).ToString();
dstMAC = DC.GetPhysicalAddress(wp.DA, 0).ToString();
}
}
else if (root is EthernetPacket)
{
EthernetPacket ep = (EthernetPacket)root;
srcMAC = DC.GetPhysicalAddress(ep.SourceMAC, 0).ToString();
dstMAC = DC.GetPhysicalAddress(ep.DestinationMAC, 0).ToString();
}
else if (root is W802_11Packet)
{
W802_11Packet wp = (W802_11Packet)root;
srcMAC = DC.GetPhysicalAddress(wp.SA, 0).ToString();
dstMAC = DC.GetPhysicalAddress(wp.DA, 0).ToString();
}
}
*/
PosixTime Timeval;
public byte[] Header;
public byte[] Preamble;
//public byte[] Payload;
public byte[] Data;
public Packet SubPacket;
public Packet ParentPacket;
public virtual long Parse(byte[] data, uint offset, uint ends) { return 0; }
public virtual bool Compose() { return false; }
public Packet RootPacket
{
get
{
Packet root = this;
while (root.ParentPacket != null)
root = root.ParentPacket;
return root;
}
}
public Packet LeafPacket
{
get
{
Packet leaf = this;
while (leaf.SubPacket != null)
leaf = leaf.SubPacket;
return leaf;
}
}
}
}
/************************************ EOF *************************************/

217
Esyur/Net/Packets/WebsocketPacket.cs Normal file
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@ -0,0 +1,217 @@
/*
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 Esyur.Misc;
using Esyur.Data;
namespace Esyur.Net.Packets
{
public class WebsocketPacket : Packet
{
public enum WSOpcode : byte
{
ContinuationFrame = 0x0, // %x0 denotes a continuation frame
TextFrame = 0x1, // %x1 denotes a text frame
BinaryFrame = 0x2, // %x2 denotes a binary frame
// %x3-7 are reserved for further non-control frames
ConnectionClose = 0x8, // %x8 denotes a connection close
Ping = 0x9, // %x9 denotes a ping
Pong = 0xA, // %xA denotes a pong
//* %xB-F are reserved for further control frames
}
public bool FIN;
public bool RSV1;
public bool RSV2;
public bool RSV3;
public WSOpcode Opcode;
public bool Mask;
public long PayloadLength;
// public UInt32 MaskKey;
public byte[] MaskKey;
public byte[] Message;
public override string ToString()
{
return "WebsocketPacket"
+ "\n\tFIN: " + FIN
+ "\n\tOpcode: " + Opcode
+ "\n\tPayload: " + PayloadLength
+ "\n\tMaskKey: " + MaskKey
+ "\n\tMessage: " + (Message != null ? Message.Length.ToString() : "NULL");
}
public override bool Compose()
{
var pkt = new List<byte>();
pkt.Add((byte)((FIN ? 0x80 : 0x0) |
(RSV1 ? 0x40 : 0x0) |
(RSV2 ? 0x20 : 0x0) |
(RSV3 ? 0x10 : 0x0) |
(byte)Opcode));
// calculate length
if (Message.Length > UInt16.MaxValue)
// 4 bytes
{
pkt.Add((byte)((Mask ? 0x80 : 0x0) | 127));
pkt.AddRange(DC.ToBytes((UInt64)Message.LongCount()));
}
else if (Message.Length > 125)
// 2 bytes
{
pkt.Add((byte)((Mask ? 0x80 : 0x0) | 126));
pkt.AddRange(DC.ToBytes((UInt16)Message.Length));
}
else
{
pkt.Add((byte)((Mask ? 0x80 : 0x0) | Message.Length));
}
if (Mask)
{
pkt.AddRange(MaskKey);
}
pkt.AddRange(Message);
Data = pkt.ToArray();
return true;
}
public override long Parse(byte[] data, uint offset, uint ends)
{
try
{
long needed = 2;
var length = (ends - offset);
if (length < needed)
{
//Console.WriteLine("stage 1 " + needed);
return length - needed;
}
uint oOffset = offset;
FIN = ((data[offset] & 0x80) == 0x80);
RSV1 = ((data[offset] & 0x40) == 0x40);
RSV2 = ((data[offset] & 0x20) == 0x20);
RSV3 = ((data[offset] & 0x10) == 0x10);
Opcode = (WSOpcode)(data[offset++] & 0xF);
Mask = ((data[offset] & 0x80) == 0x80);
PayloadLength = (long)(data[offset++] & 0x7F);
if (Mask)
needed += 4;
if (PayloadLength == 126)
{
needed += 2;
if (length < needed)
{
//Console.WriteLine("stage 2 " + needed);
return length - needed;
}
PayloadLength = DC.GetUInt16(data, offset);
offset += 2;
}
else if (PayloadLength == 127)
{
needed += 8;
if (length < needed)
{
//Console.WriteLine("stage 3 " + needed);
return length - needed;
}
PayloadLength = DC.GetInt64(data, offset);
offset += 8;
}
/*
if (Mask)
{
MaskKey = new byte[4];
MaskKey[0] = data[offset++];
MaskKey[1] = data[offset++];
MaskKey[2] = data[offset++];
MaskKey[3] = data[offset++];
//MaskKey = DC.GetUInt32(data, offset);
//offset += 4;
}
*/
needed += PayloadLength;
if (length < needed)
{
//Console.WriteLine("stage 4");
return length - needed;
}
else
{
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;
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
Console.WriteLine(offset + "::" + DC.ToHex(data));
throw ex;
}
}
}
}