--- a/src/protocols/qq/recv_core.c Sat Aug 19 00:24:14 2006 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,312 +0,0 @@
-/**
-* The QQ2003C protocol plugin
- *
- * for gaim
- *
- * Copyright (C) 2004 Puzzlebird
- *
- * 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 "buddy_info.h"
-#include "buddy_list.h"
-#include "buddy_opt.h"
-#include "buddy_status.h"
-#include "char_conv.h"
-#include "crypt.h"
-#include "group_network.h"
-#include "header_info.h"
-#include "keep_alive.h"
-#include "im.h"
-#include "login_logout.h"
-#include "packet_parse.h"
-#include "qq_proxy.h"
-#include "recv_core.h"
-#include "sendqueue.h"
-#include "sys_msg.h"
-#include "utils.h"
-
-typedef struct _packet_before_login packet_before_login;
-typedef struct _qq_recv_msg_header qq_recv_msg_header;
-
-struct _packet_before_login {
- guint8 *buf;
- gint len;
-};
-
-struct _qq_recv_msg_header {
- guint8 header_tag;
- guint16 source_tag;
- guint16 cmd;
- guint16 seq; /* can be ack_seq or send_seq, depends on cmd */
-};
-
-/* check whether one sequence number is duplicated or not
- * return TRUE if it is duplicated, otherwise FALSE */
-static gboolean _qq_check_packet_set_window(guint16 seq, GaimConnection *gc)
-{
- qq_data *qd;
- guint8 *byte, mask;
-
- g_return_val_if_fail(gc != NULL && gc->proto_data != NULL, FALSE);
- qd = (qq_data *) gc->proto_data;
- byte = &(qd->window[seq / 8]);
- mask = (1 << (seq % 8));
-
- if ((*byte) & mask)
- return TRUE; /* check mask */
- (*byte) |= mask;
- return FALSE; /* set mask */
-} /* _qq_check_packet_set_window */
-
-/* default process, decrypt and dump */
-static void _qq_process_packet_default(guint8 *buf, gint buf_len, guint16 cmd, guint16 seq, GaimConnection *gc)
-{
- qq_data *qd;
- guint8 *data;
- gchar *msg_utf8;
- gint len;
-
- g_return_if_fail(gc != NULL && gc->proto_data != NULL);
- g_return_if_fail(buf != NULL && buf_len != 0);
-
- qd = (qq_data *) gc->proto_data;
- len = buf_len;
- data = g_newa(guint8, len);
- msg_utf8 = NULL;
-
- _qq_show_packet("Processing unknown packet", buf, len);
- if (qq_crypt(DECRYPT, buf, buf_len, qd->session_key, data, &len)) {
- gaim_debug(GAIM_DEBUG_WARNING, "QQ",
- ">>> [%d] %s, %d bytes -> [default] decrypt and dump\n%s",
- seq, qq_get_cmd_desc(cmd), buf_len, hex_dump_to_str(data, len));
- try_dump_as_gbk(data, len);
- } else {
- gaim_debug(GAIM_DEBUG_ERROR, "QQ", "Fail decrypt packet with default process\n");
- }
-}
-
-/* process the incoming packet from qq_pending */
-static void _qq_packet_process(guint8 *buf, gint buf_len, GaimConnection *gc)
-{
- qq_data *qd;
- gint len, bytes_expected, bytes_read;
- guint16 buf_len_read; /* two bytes in the begining of TCP packet */
- guint8 *cursor;
- qq_recv_msg_header header;
- packet_before_login *b4_packet;
-
- g_return_if_fail(gc != NULL && gc->proto_data != NULL);
- g_return_if_fail(buf != NULL && buf_len > 0);
-
- qd = (qq_data *) gc->proto_data;
- bytes_expected = qd->use_tcp ? QQ_TCP_HEADER_LENGTH : QQ_UDP_HEADER_LENGTH;
-
- if (buf_len < bytes_expected) {
- gaim_debug(GAIM_DEBUG_ERROR,
- "QQ", "Received packet is too short, dump and drop\n%s", hex_dump_to_str(buf, buf_len));
- return;
- }
- /* initialize */
- cursor = buf;
- bytes_read = 0;
-
- /* QQ TCP packet returns first 2 bytes the length of this packet */
- if (qd->use_tcp) {
- bytes_read += read_packet_w(buf, &cursor, buf_len, &buf_len_read);
- if (buf_len_read != buf_len) { /* wrong */
- gaim_debug
- (GAIM_DEBUG_ERROR,
- "QQ",
- "TCP read %d bytes, header says %d bytes, use header anyway\n", buf_len, buf_len_read);
- buf_len = buf_len_read; /* we believe header is more accurate */
- }
- }
-
- /* now goes the normal QQ packet as UDP packet */
- bytes_read += read_packet_b(buf, &cursor, buf_len, &header.header_tag);
- bytes_read += read_packet_w(buf, &cursor, buf_len, &header.source_tag);
- bytes_read += read_packet_w(buf, &cursor, buf_len, &header.cmd);
- bytes_read += read_packet_w(buf, &cursor, buf_len, &header.seq);
-
- if (bytes_read != bytes_expected) { /* read error */
- gaim_debug(GAIM_DEBUG_ERROR, "QQ",
- "Fail reading packet header, expect %d bytes, read %d bytes\n",
- bytes_expected, bytes_read);
- return;
- }
-
- if ((buf[buf_len - 1] != QQ_PACKET_TAIL) || (header.header_tag != QQ_PACKET_TAG)) {
- gaim_debug(GAIM_DEBUG_ERROR,
- "QQ", "Unknown QQ proctocol, dump and drop\n%s", hex_dump_to_str(buf, buf_len));
- return;
- }
-
- if (QQ_DEBUG)
- gaim_debug(GAIM_DEBUG_INFO, "QQ",
- "==> [%05d] %s, from (%s)\n",
- header.seq, qq_get_cmd_desc(header.cmd), qq_get_source_str(header.source_tag));
-
- if (header.cmd != QQ_CMD_LOGIN && header.cmd != QQ_CMD_REQUEST_LOGIN_TOKEN) {
- if (!qd->logged_in) { /* packets before login */
- b4_packet = g_new0(packet_before_login, 1);
- /* must duplicate, buffer will be freed after exiting this function */
- b4_packet->buf = g_memdup(buf, buf_len);
- b4_packet->len = buf_len;
- if (qd->before_login_packets == NULL)
- qd->before_login_packets = g_queue_new();
- g_queue_push_head(qd->before_login_packets, b4_packet);
- return; /* do not process it now */
- } else if (!g_queue_is_empty(qd->before_login_packets)) {
- /* logged_in, but we have packets before login */
- b4_packet = (packet_before_login *)
- g_queue_pop_head(qd->before_login_packets);
- _qq_packet_process(b4_packet->buf, b4_packet->len, gc);
- /* in fact this is a recursive call,
- * all packets before login will be processed before goes on */
- g_free(b4_packet->buf); /* the buf is duplicated, need to be freed */
- g_free(b4_packet);
- }
- }
-
- /* this is the length of all the encrypted data (also remove tail tag */
- len = buf_len - (bytes_read) - 1;
-
- /* whether it is an ack */
- switch (header.cmd) {
- case QQ_CMD_RECV_IM:
- case QQ_CMD_RECV_MSG_SYS:
- case QQ_CMD_RECV_MSG_FRIEND_CHANGE_STATUS:
- /* server intiated packet, we need to send ack and check duplicaion
- * this must be put after processing b4_packet
- * as these packets will be passed in twice */
- if (_qq_check_packet_set_window(header.seq, gc)) {
- gaim_debug(GAIM_DEBUG_WARNING,
- "QQ", "dup [%05d] %s, discard...\n", header.seq, qq_get_cmd_desc(header.cmd));
- return;
- }
- break;
- default:{ /* ack packet, we need to update sendqueue */
- /* we do not check duplication for server ack */
- qq_sendqueue_remove(qd, header.seq);
- if (QQ_DEBUG)
- gaim_debug(GAIM_DEBUG_INFO, "QQ",
- "ack [%05d] %s, remove from sendqueue\n",
- header.seq, qq_get_cmd_desc(header.cmd));
- }
- }
-
- /* now process the packet */
- switch (header.cmd) {
- case QQ_CMD_KEEP_ALIVE:
- qq_process_keep_alive_reply(cursor, len, gc);
- break;
- case QQ_CMD_UPDATE_INFO:
- qq_process_modify_info_reply(cursor, len, gc);
- break;
- case QQ_CMD_ADD_FRIEND_WO_AUTH:
- qq_process_add_buddy_reply(cursor, len, header.seq, gc);
- break;
- case QQ_CMD_DEL_FRIEND:
- qq_process_remove_buddy_reply(cursor, len, gc);
- break;
- case QQ_CMD_REMOVE_SELF:
- qq_process_remove_self_reply(cursor, len, gc);
- break;
- case QQ_CMD_BUDDY_AUTH:
- qq_process_add_buddy_auth_reply(cursor, len, gc);
- break;
- case QQ_CMD_GET_USER_INFO:
- qq_process_get_info_reply(cursor, len, gc);
- break;
- case QQ_CMD_CHANGE_ONLINE_STATUS:
- qq_process_change_status_reply(cursor, len, gc);
- break;
- case QQ_CMD_SEND_IM:
- qq_process_send_im_reply(cursor, len, gc);
- break;
- case QQ_CMD_RECV_IM:
- qq_process_recv_im(cursor, len, header.seq, gc);
- break;
- case QQ_CMD_LOGIN:
- qq_process_login_reply(cursor, len, gc);
- break;
- case QQ_CMD_GET_FRIENDS_LIST:
- qq_process_get_buddies_list_reply(cursor, len, gc);
- break;
- case QQ_CMD_GET_FRIENDS_ONLINE:
- qq_process_get_buddies_online_reply(cursor, len, gc);
- break;
- case QQ_CMD_GROUP_CMD:
- qq_process_group_cmd_reply(cursor, len, header.seq, gc);
- break;
- case QQ_CMD_GET_ALL_LIST_WITH_GROUP:
- qq_process_get_all_list_with_group_reply(cursor, len, gc);
- break;
- case QQ_CMD_REQUEST_LOGIN_TOKEN:
- qq_process_request_login_token_reply(cursor, len, gc);
- break;
- case QQ_CMD_RECV_MSG_SYS:
- qq_process_msg_sys(cursor, len, header.seq, gc);
- break;
- case QQ_CMD_RECV_MSG_FRIEND_CHANGE_STATUS:
- qq_process_friend_change_status(cursor, len, gc);
- break;
- default:
- _qq_process_packet_default(cursor, len, header.cmd, header.seq, gc);
- break;
- }
-}
-
-/* clean up the packets before login */
-void qq_b4_packets_free(qq_data *qd)
-{
- packet_before_login *b4_packet;
- g_return_if_fail(qd != NULL);
- /* now clean up my own data structures */
- if (qd->before_login_packets != NULL) {
- while (NULL != (b4_packet = g_queue_pop_tail(qd->before_login_packets))) {
- g_free(b4_packet->buf);
- g_free(b4_packet);
- }
- g_queue_free(qd->before_login_packets);
- }
-}
-
-void qq_input_pending(gpointer data, gint source, GaimInputCondition cond)
-{
- GaimConnection *gc;
- qq_data *qd;
- guint8 *buf;
- gint len;
-
- gc = (GaimConnection *) data;
- g_return_if_fail(gc != NULL && gc->proto_data != NULL && cond == GAIM_INPUT_READ);
-
- qd = (qq_data *) gc->proto_data;
- buf = g_newa(guint8, MAX_PACKET_SIZE);
-
- /* here we have UDP proxy suppport */
- len = qq_proxy_read(qd, buf, MAX_PACKET_SIZE);
- if (len <= 0) {
- gaim_connection_error(gc, _("Unable to read from socket"));
- return;
- } else {
- _qq_packet_process(buf, len, gc);
- }
-}