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// ---------------------------------------------------------------------------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 © 2002-2004 Martin Öberg, Sam Kothari, Robert Rainwater
// Copyright © 2004-2010 Joe Kucera
// Copyright © 2012-2018 Miranda NG team
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
// -----------------------------------------------------------------------------
#include "stdafx.h"
void EncryptDirectPacket(directconnect* dc, icq_packet* p);
void packEmptyMsg(icq_packet *packet);
static void packDirectMsgHeader(icq_packet* packet, size_t wDataLen, WORD wCommand, DWORD dwCookie, BYTE bMsgType, BYTE bMsgFlags, WORD wX1, WORD wX2)
{
directPacketInit(packet, 29 + wDataLen);
packByte(packet, 2); /* channel */
packLEDWord(packet, 0); /* space for crypto */
packLEWord(packet, wCommand);
packLEWord(packet, 14); /* unknown */
packLEWord(packet, (WORD)dwCookie);
packLEDWord(packet, 0); /* unknown */
packLEDWord(packet, 0); /* unknown */
packLEDWord(packet, 0); /* unknown */
packByte(packet, bMsgType);
packByte(packet, bMsgFlags);
packLEWord(packet, wX1); /* unknown. Is 1 for getawaymsg, 0 otherwise */
packLEWord(packet, wX2); // this is probably priority
}
void CIcqProto::icq_sendDirectMsgAck(directconnect* dc, WORD wCookie, BYTE bMsgType, BYTE bMsgFlags, char* szCap)
{
icq_packet packet;
packDirectMsgHeader(&packet, bMsgType == MTYPE_PLAIN ? (szCap ? 53 : 11) : 3, DIRECT_ACK, wCookie, bMsgType, bMsgFlags, 0, 0);
packEmptyMsg(&packet); /* empty message */
if (bMsgType == MTYPE_PLAIN) {
packMsgColorInfo(&packet);
if (szCap) {
packLEDWord(&packet, 0x26); /* CLSID length */
packBuffer(&packet, (LPBYTE)szCap, 0x26); /* GUID */
}
}
EncryptDirectPacket(dc, &packet);
sendDirectPacket(dc, &packet);
NetLog_Direct("Sent acknowledgement thru direct connection");
}
DWORD CIcqProto::icq_sendGetAwayMsgDirect(MCONTACT hContact, int type)
{
if (getWord(hContact, "Version", 0) >= 9)
return 0; // v9 DC protocol does not support this message
cookie_message_data *pCookieData = CreateMessageCookie(MTYPE_AUTOAWAY, (BYTE)type);
DWORD dwCookie = AllocateCookie(CKT_MESSAGE, 0, hContact, (void*)pCookieData);
icq_packet packet;
packDirectMsgHeader(&packet, 3, DIRECT_MESSAGE, dwCookie, (BYTE)type, 3, 1, 0);
packEmptyMsg(&packet); // message
return (SendDirectMessage(hContact, &packet)) ? dwCookie : 0;
}
void CIcqProto::icq_sendAwayMsgReplyDirect(directconnect* dc, WORD wCookie, BYTE msgType, const char** szMsg)
{
if (validateStatusMessageRequest(dc->hContact, msgType)) {
NotifyEventHooks(m_modeMsgsEvent, (WPARAM)msgType, (LPARAM)dc->dwRemoteUin);
mir_cslock l(m_modeMsgsMutex);
if (szMsg && *szMsg) {
// prepare Ansi message - only Ansi supported
size_t wMsgLen = mir_strlen(*szMsg) + 1;
char *szAnsiMsg = (char*)_alloca(wMsgLen);
utf8_decode_static(*szMsg, szAnsiMsg, wMsgLen);
wMsgLen = mir_strlen(szAnsiMsg);
icq_packet packet;
packDirectMsgHeader(&packet, 3 + wMsgLen, DIRECT_ACK, wCookie, msgType, 3, 0, 0);
packLEWord(&packet, WORD(wMsgLen + 1));
packBuffer(&packet, (LPBYTE)szAnsiMsg, wMsgLen + 1);
EncryptDirectPacket(dc, &packet);
sendDirectPacket(dc, &packet);
}
}
}
void CIcqProto::icq_sendFileAcceptDirect(MCONTACT hContact, filetransfer* ft)
{
// v7 packet
icq_packet packet;
packDirectMsgHeader(&packet, 18, DIRECT_ACK, ft->dwCookie, MTYPE_FILEREQ, 0, 0, 0);
packLEWord(&packet, 1); // description
packByte(&packet, 0);
packWord(&packet, wListenPort);
packLEWord(&packet, 0);
packLEWord(&packet, 1); // filename
packByte(&packet, 0); // TODO: really send filename
packLEDWord(&packet, ft->dwTotalSize); // file size
packLEDWord(&packet, wListenPort); // FIXME: ideally we want to open a new port for this
SendDirectMessage(hContact, &packet);
NetLog_Direct("Sent file accept direct, port %u", wListenPort);
}
void CIcqProto::icq_sendFileDenyDirect(MCONTACT hContact, filetransfer *ft, const char *szReason)
{
// v7 packet
icq_packet packet;
char *szReasonAnsi = nullptr;
if (!utf8_decode(szReason, &szReasonAnsi))
szReasonAnsi = _strdup(szReason); // Legacy fix
size_t cbReasonAnsi = mir_strlen(szReasonAnsi);
packDirectMsgHeader(&packet, 18 + cbReasonAnsi, DIRECT_ACK, ft->dwCookie, MTYPE_FILEREQ, 0, 1, 0);
packLEWord(&packet, WORD(1 + cbReasonAnsi)); // description
if (szReasonAnsi)
packBuffer(&packet, (LPBYTE)szReasonAnsi, cbReasonAnsi);
packByte(&packet, 0);
packWord(&packet, 0);
packLEWord(&packet, 0);
packLEWord(&packet, 1); // filename
packByte(&packet, 0); // TODO: really send filename
packLEDWord(&packet, 0); // file size
packLEDWord(&packet, 0);
SAFE_FREE(&szReasonAnsi);
SendDirectMessage(hContact, &packet);
NetLog_Direct("Sent file deny direct.");
}
int CIcqProto::icq_sendFileSendDirectv7(filetransfer *ft, const char *pszFiles)
{
char *szFilesAnsi = nullptr;
size_t wDescrLen = mir_strlen(ft->szDescription);
if (!utf8_decode(pszFiles, &szFilesAnsi))
szFilesAnsi = _strdup(pszFiles); // Legacy fix
size_t wFilesLen = mir_strlen(szFilesAnsi);
icq_packet packet;
packDirectMsgHeader(&packet, 18 + wDescrLen + wFilesLen, DIRECT_MESSAGE, (WORD)ft->dwCookie, MTYPE_FILEREQ, 0, 0, 0);
packLEWord(&packet, WORD(wDescrLen + 1));
packBuffer(&packet, (LPBYTE)ft->szDescription, wDescrLen + 1);
packLEDWord(&packet, 0); // listen port
packLEWord(&packet, WORD(wFilesLen + 1));
packBuffer(&packet, (LPBYTE)szFilesAnsi, wFilesLen + 1);
packLEDWord(&packet, ft->dwTotalSize);
packLEDWord(&packet, 0); // listen port (again)
SAFE_FREE(&szFilesAnsi);
NetLog_Direct("Sending v%u file transfer request direct", 7);
return SendDirectMessage(ft->hContact, &packet);
}
int CIcqProto::icq_sendFileSendDirectv8(filetransfer *ft, const char *pszFiles)
{
char *szFilesAnsi = nullptr;
size_t wDescrLen = mir_strlen(ft->szDescription);
if (!utf8_decode(pszFiles, &szFilesAnsi))
szFilesAnsi = _strdup(pszFiles); // Legacy fix
size_t wFilesLen = mir_strlen(szFilesAnsi) + 1;
icq_packet packet;
packDirectMsgHeader(&packet, 0x2E + 22 + wDescrLen + wFilesLen, DIRECT_MESSAGE, (WORD)ft->dwCookie, MTYPE_PLUGIN, 0, 0, 0);
packEmptyMsg(&packet); // message
packPluginTypeId(&packet, MTYPE_FILEREQ);
packLEDWord(&packet, WORD(18 + wDescrLen + wFilesLen)); // Remaining length
packLEDWord(&packet, DWORD(wDescrLen)); // Description
packBuffer(&packet, (LPBYTE)ft->szDescription, wDescrLen);
packWord(&packet, 0x8c82); // Unknown (port?), seen 0x80F6
packWord(&packet, 0x0222); // Unknown, seen 0x2e01
packLEWord(&packet, WORD(wFilesLen));
packBuffer(&packet, (LPBYTE)szFilesAnsi, wFilesLen);
packLEDWord(&packet, ft->dwTotalSize);
packLEDWord(&packet, 0x0008c82); // Unknown, (seen 0xf680 ~33000)
SAFE_FREE(&szFilesAnsi);
NetLog_Direct("Sending v%u file transfer request direct", 8);
return SendDirectMessage(ft->hContact, &packet);
}
DWORD CIcqProto::icq_SendDirectMessage(MCONTACT hContact, const char *szMessage, size_t nBodyLength, cookie_message_data *pCookieData, char *szCap)
{
DWORD dwCookie = AllocateCookie(CKT_MESSAGE, 0, hContact, (void*)pCookieData);
// Pack the standard header
icq_packet packet;
packDirectMsgHeader(&packet, nBodyLength + (szCap ? 53 : 11), DIRECT_MESSAGE, dwCookie, (BYTE)pCookieData->bMessageType, 0, 0, 0);
packLEWord(&packet, WORD(nBodyLength + 1)); // Length of message
packBuffer(&packet, (LPBYTE)szMessage, nBodyLength + 1); // Message
packMsgColorInfo(&packet);
if (szCap) {
packLEDWord(&packet, 0x00000026); // length of GUID
packBuffer(&packet, (LPBYTE)szCap, 0x26); // UTF-8 GUID
}
if (SendDirectMessage(hContact, &packet))
return dwCookie; // Success
FreeCookie(dwCookie); // release cookie
return 0; // Failure
}
void CIcqProto::icq_sendXtrazRequestDirect(MCONTACT hContact, DWORD dwCookie, char* szBody, size_t nBodyLen, WORD wType)
{
icq_packet packet;
packDirectMsgHeader(&packet, 11 + getPluginTypeIdLen(wType) + nBodyLen, DIRECT_MESSAGE, dwCookie, MTYPE_PLUGIN, 0, 0, 1);
packEmptyMsg(&packet); // message (unused)
packPluginTypeId(&packet, wType);
packLEDWord(&packet, DWORD(nBodyLen + 4));
packLEDWord(&packet, DWORD(nBodyLen));
packBuffer(&packet, (LPBYTE)szBody, nBodyLen);
SendDirectMessage(hContact, &packet);
}
void CIcqProto::icq_sendXtrazResponseDirect(MCONTACT hContact, WORD wCookie, char* szBody, size_t nBodyLen, WORD wType)
{
icq_packet packet;
packDirectMsgHeader(&packet, getPluginTypeIdLen(wType) + 11 + nBodyLen, DIRECT_ACK, wCookie, MTYPE_PLUGIN, 0, 0, 0);
packEmptyMsg(&packet); // Message (unused)
packPluginTypeId(&packet, wType);
packLEDWord(&packet, DWORD(nBodyLen + 4));
packLEDWord(&packet, DWORD(nBodyLen));
packBuffer(&packet, (LPBYTE)szBody, nBodyLen);
SendDirectMessage(hContact, &packet);
}
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