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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
// ---------------------------------------------------------------------------80
// ICQ plugin for Miranda Instant Messenger
// ________________________________________
//
// Copyright 2000,2001 Richard Hughes, Roland Rabien, Tristan Van de Vreede
// Copyright 2001,2002 Jon Keating, Richard Hughes
// Copyright 2002,2003,2004 Martin berg, Sam Kothari, Robert Rainwater
// Copyright 2004,2005,2006 Joe Kucera
//
// 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.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// -----------------------------------------------------------------------------
//
// File name : $Source: /cvsroot/miranda/miranda/protocols/IcqOscarJ/icq_http.c,v $
// Revision : $Revision: 12606 $
// Last change on : $Date: 2010-09-06 15:38:27 +0300 (Пн, 06 сен 2010) $
// Last change by : $Author: borkra $
//
// DESCRIPTION:
//
// HTTP Gateway Handling routines
//
// -----------------------------------------------------------------------------
#include "icqoscar.h"
int icq_httpGatewayInit(HANDLE hConn, NETLIBOPENCONNECTION *nloc, NETLIBHTTPREQUEST *nlhr)
{
// initial response from ICQ http gateway
WORD wLen, wVersion, wType;
WORD wIpLen;
DWORD dwSid1, dwSid2, dwSid3, dwSid4;
BYTE *buf;
char szSid[33], szHttpServer[256], szHttpGetUrl[300], szHttpPostUrl[300];
NETLIBHTTPPROXYINFO nlhpi = {0};
if (nlhr->dataLength < 31)
{
SetLastError(ERROR_INVALID_DATA);
return 0;
}
buf = (PBYTE)nlhr->pData;
unpackWord(&buf, &wLen);
unpackWord(&buf, &wVersion); /* always 0x0443 */
unpackWord(&buf, &wType); /* hello reply */
buf += 6; /* dunno */
unpackDWord(&buf, &dwSid1);
unpackDWord(&buf, &dwSid2);
unpackDWord(&buf, &dwSid3);
unpackDWord(&buf, &dwSid4);
null_snprintf(szSid, 33, "%08x%08x%08x%08x", dwSid1, dwSid2, dwSid3, dwSid4);
unpackWord(&buf, &wIpLen);
if(nlhr->dataLength < 30 + wIpLen || wIpLen == 0 || wIpLen > sizeof(szHttpServer) - 1)
{
SetLastError(ERROR_INVALID_DATA);
return 0;
}
SetGatewayIndex(hConn, 1); // new master connection begins here
memcpy(szHttpServer, buf, wIpLen);
szHttpServer[wIpLen] = '\0';
nlhpi.cbSize = sizeof(nlhpi);
nlhpi.flags = NLHPIF_USEPOSTSEQUENCE;
nlhpi.szHttpGetUrl = szHttpGetUrl;
nlhpi.szHttpPostUrl = szHttpPostUrl;
nlhpi.firstPostSequence = 1;
null_snprintf(szHttpGetUrl, 300, "http://%s/monitor?sid=%s", szHttpServer, szSid);
null_snprintf(szHttpPostUrl, 300, "http://%s/data?sid=%s&seq=", szHttpServer, szSid);
return CallService(MS_NETLIB_SETHTTPPROXYINFO, (WPARAM)hConn, (LPARAM)&nlhpi);
}
int icq_httpGatewayBegin(HANDLE hConn, NETLIBOPENCONNECTION* nloc)
{ // open our "virual data connection"
icq_packet packet;
size_t serverNameLen;
serverNameLen = strlennull(nloc->szHost);
packet.wLen = (WORD)(serverNameLen + 4);
write_httphdr(&packet, HTTP_PACKETTYPE_LOGIN, GetGatewayIndex(hConn));
packWord(&packet, (WORD)serverNameLen);
packBuffer(&packet, (LPBYTE)nloc->szHost, (WORD)serverNameLen);
packWord(&packet, nloc->wPort);
INT_PTR res = Netlib_Send(hConn, (char*)packet.pData, packet.wLen, MSG_DUMPPROXY|MSG_NOHTTPGATEWAYWRAP);
SAFE_FREE((void**)&packet.pData);
return res != SOCKET_ERROR;
}
int icq_httpGatewayWrapSend(HANDLE hConn, PBYTE buf, int len, int flags, MIRANDASERVICE pfnNetlibSend)
{
PBYTE sendBuf = buf;
int sendLen = len;
int sendResult = 0;
while (sendLen > 0)
{ // imitate polite behaviour of icq5.1 and split large packets
icq_packet packet;
WORD curLen;
int curResult;
if (sendLen > 512) curLen = 512; else curLen = (WORD)sendLen;
// send wrapped data
packet.wLen = curLen;
write_httphdr(&packet, HTTP_PACKETTYPE_FLAP, GetGatewayIndex(hConn));
packBuffer(&packet, sendBuf, (WORD)curLen);
NETLIBBUFFER nlb={ (char*)packet.pData, packet.wLen, flags };
curResult = pfnNetlibSend((WPARAM)hConn, (LPARAM)&nlb);
SAFE_FREE((void**)&packet.pData);
// sending failed, end loop
if (curResult <= 0)
return curResult;
// calculare real number of data bytes sent
if (curResult > 14) sendResult += curResult - 14;
// move on
sendLen -= curLen;
sendBuf += curLen;
}
return sendResult;
}
PBYTE icq_httpGatewayUnwrapRecv(NETLIBHTTPREQUEST* nlhr, PBYTE buf, int len, int* outBufLen, void *(*NetlibRealloc)(void *, size_t))
{
WORD wLen, wType;
DWORD dwPackSeq;
PBYTE tbuf;
int i, copyBytes;
tbuf = buf;
for(i = 0;;)
{
if (tbuf - buf + 2 > len)
break;
unpackWord(&tbuf, &wLen);
if (wLen < 12)
break;
if (tbuf - buf + wLen > len)
break;
tbuf += 2; /* version */
unpackWord(&tbuf, &wType);
tbuf += 4; /* flags */
unpackDWord(&tbuf, &dwPackSeq);
if (wType == HTTP_PACKETTYPE_FLAP)
{ // it is normal data packet
copyBytes = wLen - 12;
if (copyBytes > len - i)
{
/* invalid data - do our best to get something out of it */
copyBytes = len - i;
}
memcpy(buf + i, tbuf, copyBytes);
i += copyBytes;
}
else if (wType == HTTP_PACKETTYPE_LOGINREPLY)
{ // our "virtual connection" was established, good
BYTE bRes;
unpackByte(&tbuf, &bRes);
wLen -= 1;
if (!bRes)
Netlib_Logf( NULL, "Gateway Connection #%d Established.", dwPackSeq);
else
Netlib_Logf( NULL, "Gateway Connection #%d Failed, error: %d", dwPackSeq, bRes);
}
else if (wType == HTTP_PACKETTYPE_CLOSEREPLY)
{ // "virtual connection" closed - only received if any other "virual connection" still active
Netlib_Logf( NULL, "Gateway Connection #%d Closed.", dwPackSeq);
}
tbuf += wLen - 12;
}
*outBufLen = i;
return buf;
}
int icq_httpGatewayWalkTo(HANDLE hConn, NETLIBOPENCONNECTION* nloc)
{ // this is bad simplification - for avatars to work we need to handle
// two "virtual connections" at the same time
icq_packet packet;
DWORD dwGatewaySeq = GetGatewayIndex(hConn);
packet.wLen = 0;
write_httphdr(&packet, HTTP_PACKETTYPE_CLOSE, dwGatewaySeq);
Netlib_Send(hConn, (char*)packet.pData, packet.wLen, MSG_DUMPPROXY|MSG_NOHTTPGATEWAYWRAP);
// we closed virtual connection, open new one
dwGatewaySeq++;
SetGatewayIndex(hConn, dwGatewaySeq);
return icq_httpGatewayBegin(hConn, nloc);
}
|
