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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 © 2004-2009 Joe Kucera
// Copyright © 2012-2017 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// -----------------------------------------------------------------------------
#include "stdafx.h"
void CIcqProto::handleAuthorizationFam(BYTE *pBuffer, size_t wBufferLength, snac_header *pSnacHeader, serverthread_info *info)
{
switch (pSnacHeader->wSubtype) {
case ICQ_SIGNON_ERROR:
{
WORD wError;
if (wBufferLength >= 2)
unpackWord(&pBuffer, &wError);
else
wError = 0;
LogFamilyError(ICQ_AUTHORIZATION_FAMILY, wError);
break;
}
case ICQ_SIGNON_AUTH_KEY:
handleAuthKeyResponse(pBuffer, wBufferLength, info);
break;
case ICQ_SIGNON_LOGIN_REPLY:
handleLoginReply(pBuffer, wBufferLength, info);
break;
default:
debugLogA("Warning: Ignoring SNAC(x%02x,x%02x) - Unknown SNAC (Flags: %u, Ref: %u)", ICQ_AUTHORIZATION_FAMILY, pSnacHeader->wSubtype, pSnacHeader->wFlags, pSnacHeader->dwRef);
break;
}
}
static void icq_encryptPassword(const char *szPassword, BYTE *encrypted)
{
BYTE table[] =
{
0xf3, 0x26, 0x81, 0xc4,
0x39, 0x86, 0xdb, 0x92,
0x71, 0xa3, 0xb9, 0xe6,
0x53, 0x7a, 0x95, 0x7c
};
for (int i = 0; szPassword[i]; i++)
encrypted[i] = (szPassword[i] ^ table[i % 16]);
}
void CIcqProto::sendClientAuth(const char *szKey, size_t wKeyLen, BOOL bSecure)
{
char szUin[UINMAXLEN];
icq_packet packet;
size_t wUinLen = mir_strlen(strUID(m_dwLocalUIN, szUin));
packet.wLen = WORD((m_bLegacyFix ? 65 : 70) + sizeof(CLIENT_ID_STRING) + wUinLen + wKeyLen + (m_bSecureConnection ? 4 : 0));
if (bSecure) {
serverPacketInit(&packet, packet.wLen + 10);
packFNACHeader(&packet, ICQ_AUTHORIZATION_FAMILY, ICQ_SIGNON_LOGIN_REQUEST, 0, 0);
}
else {
write_flap(&packet, ICQ_LOGIN_CHAN);
packDWord(&packet, 0x00000001);
}
packTLV(&packet, 0x0001, wUinLen, (LPBYTE)szUin);
if (bSecure) { // Pack MD5 auth digest
packTLV(&packet, 0x0025, wKeyLen, (BYTE*)szKey);
packDWord(&packet, 0x004C0000); // empty TLV(0x4C): unknown
}
else { // Pack old style password hash
BYTE hash[20];
icq_encryptPassword(szKey, hash);
packTLV(&packet, 0x0002, wKeyLen, hash);
}
// Pack client identification details.
packTLV(&packet, 0x0003, (WORD)sizeof(CLIENT_ID_STRING)-1, (LPBYTE)CLIENT_ID_STRING);
packTLVWord(&packet, 0x0017, CLIENT_VERSION_MAJOR);
packTLVWord(&packet, 0x0018, CLIENT_VERSION_MINOR);
packTLVWord(&packet, 0x0019, CLIENT_VERSION_LESSER);
packTLVWord(&packet, 0x001a, CLIENT_VERSION_BUILD);
packTLVWord(&packet, 0x0016, CLIENT_ID_CODE);
packTLVDWord(&packet, 0x0014, CLIENT_DISTRIBUTION);
packTLV(&packet, 0x000f, 0x0002, (LPBYTE)CLIENT_LANGUAGE);
packTLV(&packet, 0x000e, 0x0002, (LPBYTE)CLIENT_COUNTRY);
if (!m_bLegacyFix)
packTLV(&packet, 0x0094, 0x0001, &m_bConnectionLost); // CLIENT_RECONNECT flag
if (m_bSecureConnection)
packDWord(&packet, 0x008C0000); // empty TLV(0x8C): use SSL
sendServPacket(&packet);
}
void CIcqProto::handleAuthKeyResponse(BYTE *buf, size_t wPacketLen, serverthread_info *info)
{
char szKey[64] = {0};
mir_md5_state_t state;
BYTE digest[16];
debugLogA("Received %s", "ICQ_SIGNON_AUTH_KEY");
if (wPacketLen < 2) {
debugLogA("Malformed %s", "ICQ_SIGNON_AUTH_KEY");
icq_LogMessage(LOG_FATAL, LPGEN("Secure login failed.\nInvalid server response."));
SetCurrentStatus(ID_STATUS_OFFLINE);
return;
}
size_t wKeyLen;
unpackWord(&buf, &wKeyLen);
wPacketLen -= 2;
if (!wKeyLen || wKeyLen > wPacketLen || wKeyLen > sizeof(szKey)) {
debugLogA("Invalid length in %s: %u", "ICQ_SIGNON_AUTH_KEY", wKeyLen);
icq_LogMessage(LOG_FATAL, LPGEN("Secure login failed.\nInvalid key length."));
SetCurrentStatus(ID_STATUS_OFFLINE);
return;
}
unpackString(&buf, szKey, wKeyLen);
mir_md5_init(&state);
mir_md5_append(&state, info->szAuthKey, (int)info->wAuthKeyLen);
mir_md5_finish(&state, digest);
mir_md5_init(&state);
mir_md5_append(&state, (LPBYTE)szKey, (int)wKeyLen);
mir_md5_append(&state, digest, 16);
mir_md5_append(&state, (LPBYTE)CLIENT_MD5_STRING, sizeof(CLIENT_MD5_STRING)-1);
mir_md5_finish(&state, digest);
debugLogA("Sending ICQ_SIGNON_LOGIN_REQUEST to login server");
sendClientAuth((char*)digest, 0x10, TRUE);
}
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