1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
messageformatter.cpp - msn p2p protocol
Copyright (c) 2005 by Gregg Edghill <gregg.edghill@gmail.com>
*************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
*************************************************************************
*/
#include "messageformatter.h"
#include "p2p.h"
// TQt includes
#include <tqdatastream.h>
#include <tqregexp.h>
// Kde includes
#include <kdebug.h>
using P2P::MessageFormatter;
using P2P::Message;
MessageFormatter::MessageFormatter(TQObject *tqparent, const char *name) : TQObject(tqparent, name)
{}
MessageFormatter::~MessageFormatter()
{}
Message MessageFormatter::readMessage(const TQByteArray& stream, bool compact)
{
Message inbound;
TQ_UINT32 index = 0;
if(compact == false)
{
// Determine the end position of the message header.
while(index < stream.size())
{
if(stream[index++] == '\n'){
if(stream[index - 3] == '\n')
break;
}
}
// Retrieve the message header.
TQString messageHeader = TQCString(stream.data(), index);
// Retrieve the message mime version, content type,
// and p2p destination.
TQRegExp regex("Content-Type: ([A-Za-z0-9$!*/\\-]*)");
regex.search(messageHeader);
TQString contentType = regex.cap(1);
if(contentType != "application/x-msnmsgrp2p")
return inbound;
// kdDebug(14140) << k_funcinfo << endl;
regex = TQRegExp("MIME-Version: (\\d.\\d)");
regex.search(messageHeader);
inbound.mimeVersion = regex.cap(1);
inbound.contentType = contentType;
regex = TQRegExp("P2P-Dest: ([^\r\n]*)");
regex.search(messageHeader);
TQString destination = regex.cap(1);
}
TQDataStream reader(stream, IO_ReadOnly);
reader.setByteOrder(TQDataStream::LittleEndian);
// Seek to the start position of the message
// transport header.
reader.tqdevice()->tqat(index);
// Read the message transport headers from the stream.
reader >> inbound.header.sessionId;
reader >> inbound.header.identifier;
reader >> inbound.header.dataOffset;
reader >> inbound.header.totalDataSize;
reader >> inbound.header.dataSize;
reader >> inbound.header.flag;
reader >> inbound.header.ackSessionIdentifier;
reader >> inbound.header.ackUniqueIdentifier;
reader >> inbound.header.ackDataSize;
/*kdDebug(14140)
<< "session id, " << inbound.header.sessionId << endl
<< "identifier, " << inbound.header.identifier << endl
<< "data offset, " << inbound.header.dataOffset << endl
<< "total size, " << inbound.header.totalDataSize << endl
<< "data size, " << inbound.header.dataSize << endl
<< "flag, " << inbound.header.flag << endl
<< "ack session identifier, " << inbound.header.ackSessionIdentifier << endl
<< "ack unique identifier, " << inbound.header.ackUniqueIdentifier << endl
<< "ack data size, " << inbound.header.ackDataSize
<< endl;*/
// Read the message body from the stream.
if(inbound.header.dataSize > 0){
inbound.body.resize(inbound.header.dataSize);
reader.readRawBytes(inbound.body.data(), inbound.header.dataSize);
}
if(compact == false)
{
reader.setByteOrder(TQDataStream::BigEndian);
// Read the message application identifier from the stream.
reader >> inbound.applicationIdentifier;
/* kdDebug(14140)
<< "application identifier, " << inbound.applicationIdentifier
<< endl;*/
}
return inbound;
}
void MessageFormatter::writeMessage(const Message& message, TQByteArray& stream, bool compact)
{
// kdDebug(14140) << k_funcinfo << endl;
TQDataStream writer(stream, IO_WriteOnly);
writer.setByteOrder(TQDataStream::LittleEndian);
if(compact == false)
{
const TQCString messageHeader = TQString("MIME-Version: 1.0\r\n"
"Content-Type: application/x-msnmsgrp2p\r\n"
"P2P-Dest: " + message.destination + "\r\n"
"\r\n").utf8();
// Set the capacity of the message buffer.
stream.resize(messageHeader.length() + 48 + message.body.size() + 4);
// Write the message header to the stream
writer.writeRawBytes(messageHeader.data(), messageHeader.length());
}
else
{
// Set the capacity of the message buffer.
stream.resize(4 + 48 + message.body.size());
// Write the message size to the stream.
writer << (TQ_INT32)(48+message.body.size());
}
// Write the transport headers to the stream.
writer << message.header.sessionId;
writer << message.header.identifier;
writer << message.header.dataOffset;
writer << message.header.totalDataSize;
writer << message.header.dataSize;
writer << message.header.flag;
writer << message.header.ackSessionIdentifier;
writer << message.header.ackUniqueIdentifier;
writer << message.header.ackDataSize;
/* kdDebug(14140)
<< "session id, " << message.header.sessionId << endl
<< "identifier, " << message.header.identifier << endl
<< "data offset, " << message.header.dataOffset << endl
<< "total size, " << message.header.totalDataSize << endl
<< "data size, " << message.header.dataSize << endl
<< "flag, " << message.header.flag << endl
<< "ack session identifier, " << message.header.ackSessionIdentifier << endl
<< "ack unique identifier, " << message.header.ackUniqueIdentifier << endl
<< "ack data size, " << message.header.ackDataSize
<< endl;
*/
if(message.body.size() > 0){
// Write the messge body to the stream.
writer.writeRawBytes(message.body.data(), message.body.size());
}
if(compact == false)
{
// Seek to the message application identifier section.
writer.setByteOrder(TQDataStream::BigEndian);
// Write the message application identifier to the stream.
writer << message.applicationIdentifier;
/* kdDebug(14140)
<< "application identifier, " << message.applicationIdentifier
<< endl;
*/
}
}
#include "messageformatter.moc"
|
