login_logout.c

Linux下的多协议即时通讯程序源代码

/**
 * @file login_logout.c
 *
 * purple
 *
 * Purple is the legal property of its developers, whose names are too numerous
 * to list here.  Please refer to the COPYRIGHT file distributed with this
 * source distribution.
 *
 * 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 "debug.h"
#include "internal.h"
#include "server.h"

#include "buddy_info.h"
#include "buddy_list.h"
#include "buddy_status.h"
#include "char_conv.h"
#include "crypt.h"
#include "group.h"
#include "header_info.h"
#include "login_logout.h"
#include "packet_parse.h"
#include "qq.h"
#include "qq_proxy.h"
#include "send_core.h"
#include "utils.h"

#define QQ_LOGIN_DATA_LENGTH		    416
#define QQ_LOGIN_REPLY_OK_PACKET_LEN        139
#define QQ_LOGIN_REPLY_REDIRECT_PACKET_LEN  11

#define QQ_REQUEST_LOGIN_TOKEN_REPLY_OK 	0x00

#define QQ_LOGIN_REPLY_OK                   0x00
#define QQ_LOGIN_REPLY_REDIRECT             0x01
#define QQ_LOGIN_REPLY_PWD_ERROR            0x05
#define QQ_LOGIN_REPLY_MISC_ERROR           0xff	/* defined by myself */

/* for QQ 2003iii 0117, fixed value */
/* static const guint8 login_23_51[29] = {
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0xbf, 0x14, 0x11, 0x20,
	0x03, 0x9d, 0xb2, 0xe6, 0xb3, 0x11, 0xb7, 0x13,
	0x95, 0x67, 0xda, 0x2c, 0x01 
}; */

/* for QQ 2003iii 0304, fixed value */
/*
static const guint8 login_23_51[29] = {
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x9a, 0x93, 0xfe, 0x85,
	0xd3, 0xd9, 0x2a, 0x41, 0xc8, 0x0d, 0xff, 0xb6,
	0x40, 0xb8, 0xac, 0x32, 0x01
};
*/

/* for QQ 2005? copy from lumaqq */
static const gint8 login_23_51[29] = {
	0, 0, 0, 
	0, 0, 0, 0, 0, 0, 0, 0, 0, -122, 
	-52, 76, 53, 44, -45, 115, 108, 20, -10, -10, 
	-81, -61, -6, 51, -92, 1
};

static const gint8 login_53_68[16] = {
	-115, -117, -6, -20, -43, 82, 23, 74, -122, -7, 
	-89, 117, -26, 50, -47, 109
};

static const gint8 login_100_bytes[100] = {
	64, 
	11, 4, 2, 0, 1, 0, 0, 0, 0, 0, 
	3, 9, 0, 0, 0, 0, 0, 0, 0, 1, 
	-23, 3, 1, 0, 0, 0, 0, 0, 1, -13, 
	3, 0, 0, 0, 0, 0, 0, 1, -19, 3, 
	0, 0, 0, 0, 0, 0, 1, -20, 3, 0, 
	0, 0, 0, 0, 0, 3, 5, 0, 0, 0, 
	0, 0, 0, 0, 3, 7, 0, 0, 0, 0, 
	0, 0, 0, 1, -18, 3, 0, 0, 0, 0, 
	0, 0, 1, -17, 3, 0, 0, 0, 0, 0, 
	0, 1, -21, 3, 0, 0, 0, 0, 0
};

/* fixed value, not affected by version, or mac address */
/*
static const guint8 login_53_68[16] = {
	0x82, 0x2a, 0x91, 0xfd, 0xa5, 0xca, 0x67, 0x4c,
	0xac, 0x81, 0x1f, 0x6f, 0x52, 0x05, 0xa7, 0xbf
};
*/


typedef struct _qq_login_reply_ok qq_login_reply_ok_packet;
typedef struct _qq_login_reply_redirect qq_login_reply_redirect_packet;

struct _qq_login_reply_ok {
	guint8 result;
	guint8 *session_key;
	guint32 uid;
	guint8 client_ip[4];	/* those detected by server */
	guint16 client_port;
	guint8 server_ip[4];
	guint16 server_port;
	time_t login_time;
	guint8 unknown1[26];
	guint8 unknown_server1_ip[4];
	guint16 unknown_server1_port;
	guint8 unknown_server2_ip[4];
	guint16 unknown_server2_port;
	guint16 unknown2;	/* 0x0001 */
	guint16 unknown3;	/* 0x0000 */
	guint8 unknown4[32];
	guint8 unknown5[12];
	guint8 last_client_ip[4];
	time_t last_login_time;
	guint8 unknown6[8];
};

struct _qq_login_reply_redirect {
	guint8 result;
	guint32 uid;
	guint8 new_server_ip[4];
	guint16 new_server_port;
};

extern gint			/* defined in send_core.c */
 _create_packet_head_seq(guint8 *buf,
			 guint8 **cursor, PurpleConnection *gc, guint16 cmd, gboolean is_auto_seq, guint16 *seq);
extern gint			/* defined in send_core.c */
 _qq_send_packet(PurpleConnection *gc, guint8 *buf, gint len, guint16 cmd);

/* It is fixed to 16 bytes 0x01 for QQ2003, 
 * Any value works (or a random 16 bytes string) */
static guint8 *_gen_login_key(void)
{
	return (guint8 *) g_strnfill(QQ_KEY_LENGTH, 0x01);
}

/* process login reply which says OK */
static gint _qq_process_login_ok(PurpleConnection *gc, guint8 *data, gint len)
{
	gint bytes;
	guint8 *cursor;
	qq_data *qd;
	qq_login_reply_ok_packet lrop;

	qd = (qq_data *) gc->proto_data;
	cursor = data;
	bytes = 0;

	/* 000-000: reply code */
	bytes += read_packet_b(data, &cursor, len, &lrop.result);
	/* 001-016: session key */
	lrop.session_key = g_memdup(cursor, QQ_KEY_LENGTH);
	cursor += QQ_KEY_LENGTH;
	bytes += QQ_KEY_LENGTH;
	purple_debug(PURPLE_DEBUG_INFO, "QQ", "Get session_key done\n");
	/* 017-020: login uid */
	bytes += read_packet_dw(data, &cursor, len, &lrop.uid);
	/* 021-024: server detected user public IP */
	bytes += read_packet_data(data, &cursor, len, (guint8 *) &lrop.client_ip, 4);
	/* 025-026: server detected user port */
	bytes += read_packet_w(data, &cursor, len, &lrop.client_port);
	/* 027-030: server detected itself ip 127.0.0.1 ? */
	bytes += read_packet_data(data, &cursor, len, (guint8 *) &lrop.server_ip, 4);
	/* 031-032: server listening port */
	bytes += read_packet_w(data, &cursor, len, &lrop.server_port);
	/* 033-036: login time for current session */
	bytes += read_packet_dw(data, &cursor, len, (guint32 *) &lrop.login_time);
	/* 037-062: 26 bytes, unknown */
	bytes += read_packet_data(data, &cursor, len, (guint8 *) &lrop.unknown1, 26);
	/* 063-066: unknown server1 ip address */
	bytes += read_packet_data(data, &cursor, len, (guint8 *) &lrop.unknown_server1_ip, 4);
	/* 067-068: unknown server1 port */
	bytes += read_packet_w(data, &cursor, len, &lrop.unknown_server1_port);
	/* 069-072: unknown server2 ip address */
	bytes += read_packet_data(data, &cursor, len, (guint8 *) &lrop.unknown_server2_ip, 4);
	/* 073-074: unknown server2 port */
	bytes += read_packet_w(data, &cursor, len, &lrop.unknown_server2_port);
	/* 075-076: 2 bytes unknown */
	bytes += read_packet_w(data, &cursor, len, &lrop.unknown2);
	/* 077-078: 2 bytes unknown */
	bytes += read_packet_w(data, &cursor, len, &lrop.unknown3);
	/* 079-110: 32 bytes unknown */
	bytes += read_packet_data(data, &cursor, len, (guint8 *) &lrop.unknown4, 32);
	/* 111-122: 12 bytes unknown */
	bytes += read_packet_data(data, &cursor, len, (guint8 *) &lrop.unknown5, 12);
	/* 123-126: login IP of last session */
	bytes += read_packet_data(data, &cursor, len, (guint8 *) &lrop.last_client_ip, 4);
	/* 127-130: login time of last session */
	bytes += read_packet_dw(data, &cursor, len, (guint32 *) &lrop.last_login_time);
	/* 131-138: 8 bytes unknown */
	bytes += read_packet_data(data, &cursor, len, (guint8 *) &lrop.unknown6, 8);

	if (bytes != QQ_LOGIN_REPLY_OK_PACKET_LEN) {	/* fail parsing login info */
		purple_debug(PURPLE_DEBUG_WARNING, "QQ",
			   "Fail parsing login info, expect %d bytes, read %d bytes\n",
			   QQ_LOGIN_REPLY_OK_PACKET_LEN, bytes);
	}			/* but we still go on as login OK */

	qd->session_key = lrop.session_key;
	qd->session_md5 = _gen_session_md5(qd->uid, qd->session_key);
	qd->my_ip = gen_ip_str(lrop.client_ip);
	qd->my_port = lrop.client_port;
	qd->login_time = lrop.login_time;
	qd->last_login_time = lrop.last_login_time;
	qd->last_login_ip = gen_ip_str(lrop.last_client_ip);

	purple_connection_set_state(gc, PURPLE_CONNECTED);
	qd->logged_in = TRUE;	/* must be defined after sev_finish_login */

	/* now initiate QQ Qun, do it first as it may take longer to finish */
	qq_group_init(gc);

	/* Now goes on updating my icon/nickname, not showing info_window */
	qd->modifying_face = FALSE;
	qq_send_packet_get_info(gc, qd->uid, FALSE);
	/* grab my level */
	qq_send_packet_get_level(gc, qd->uid);

	qq_send_packet_change_status(gc);

	/* refresh buddies */
	qq_send_packet_get_buddies_list(gc, QQ_FRIENDS_LIST_POSITION_START);
	/* refresh groups */
	qq_send_packet_get_all_list_with_group(gc, QQ_FRIENDS_LIST_POSITION_START);

	return QQ_LOGIN_REPLY_OK;
}

/* process login reply packet which includes redirected new server address */
static gint _qq_process_login_redirect(PurpleConnection *gc, guint8 *data, gint len)
{
	gint bytes, ret;