core/protocols/qq/login_logout.c

changeset 14253
b63ebf84c42b
parent 14083
2b68bb18a66c
equal deleted inserted replaced
14252:d10dda2777a9 14253:b63ebf84c42b
1 /**
2 * The QQ2003C protocol plugin
3 *
4 * for gaim
5 *
6 * Copyright (C) 2004 Puzzlebird
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 #include "debug.h"
24 #include "internal.h"
25 #include "server.h"
26
27 #include "buddy_info.h"
28 #include "buddy_list.h"
29 #include "buddy_status.h"
30 #include "char_conv.h"
31 #include "crypt.h"
32 #include "group.h"
33 #include "header_info.h"
34 #include "login_logout.h"
35 #include "packet_parse.h"
36 #include "qq.h"
37 #include "qq_proxy.h"
38 #include "send_core.h"
39 #include "utils.h"
40
41 #define QQ_LOGIN_DATA_LENGTH 416
42 #define QQ_LOGIN_REPLY_OK_PACKET_LEN 139
43 #define QQ_LOGIN_REPLY_REDIRECT_PACKET_LEN 11
44
45 #define QQ_REQUEST_LOGIN_TOKEN_REPLY_OK 0x00
46
47 #define QQ_LOGIN_REPLY_OK 0x00
48 #define QQ_LOGIN_REPLY_REDIRECT 0x01
49 #define QQ_LOGIN_REPLY_PWD_ERROR 0x05
50 #define QQ_LOGIN_REPLY_MISC_ERROR 0xff /* defined by myself */
51
52 /* for QQ 2003iii 0117, fixed value */
53 /* static const guint8 login_23_51[29] = {
54 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
55 0x00, 0x00, 0x00, 0x00, 0xbf, 0x14, 0x11, 0x20,
56 0x03, 0x9d, 0xb2, 0xe6, 0xb3, 0x11, 0xb7, 0x13,
57 0x95, 0x67, 0xda, 0x2c, 0x01
58 }; */
59
60 /* for QQ 2003iii 0304, fixed value */
61 /*
62 static const guint8 login_23_51[29] = {
63 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
64 0x00, 0x00, 0x00, 0x00, 0x9a, 0x93, 0xfe, 0x85,
65 0xd3, 0xd9, 0x2a, 0x41, 0xc8, 0x0d, 0xff, 0xb6,
66 0x40, 0xb8, 0xac, 0x32, 0x01
67 };
68 */
69
70 /* for QQ 2005? copy from lumaqq */
71 static const gint8 login_23_51[29] = {
72 0, 0, 0,
73 0, 0, 0, 0, 0, 0, 0, 0, 0, -122,
74 -52, 76, 53, 44, -45, 115, 108, 20, -10, -10,
75 -81, -61, -6, 51, -92, 1
76 };
77
78 static const gint8 login_53_68[16] = {
79 -115, -117, -6, -20, -43, 82, 23, 74, -122, -7,
80 -89, 117, -26, 50, -47, 109
81 };
82
83 static const gint8 login_100_bytes[100] = {
84 64,
85 11, 4, 2, 0, 1, 0, 0, 0, 0, 0,
86 3, 9, 0, 0, 0, 0, 0, 0, 0, 1,
87 -23, 3, 1, 0, 0, 0, 0, 0, 1, -13,
88 3, 0, 0, 0, 0, 0, 0, 1, -19, 3,
89 0, 0, 0, 0, 0, 0, 1, -20, 3, 0,
90 0, 0, 0, 0, 0, 3, 5, 0, 0, 0,
91 0, 0, 0, 0, 3, 7, 0, 0, 0, 0,
92 0, 0, 0, 1, -18, 3, 0, 0, 0, 0,
93 0, 0, 1, -17, 3, 0, 0, 0, 0, 0,
94 0, 1, -21, 3, 0, 0, 0, 0, 0
95 };
96
97 /* fixed value, not affected by version, or mac address */
98 /*
99 static const guint8 login_53_68[16] = {
100 0x82, 0x2a, 0x91, 0xfd, 0xa5, 0xca, 0x67, 0x4c,
101 0xac, 0x81, 0x1f, 0x6f, 0x52, 0x05, 0xa7, 0xbf
102 };
103 */
104
105
106 typedef struct _qq_login_reply_ok qq_login_reply_ok_packet;
107 typedef struct _qq_login_reply_redirect qq_login_reply_redirect_packet;
108
109 struct _qq_login_reply_ok {
110 guint8 result;
111 guint8 *session_key;
112 guint32 uid;
113 guint8 client_ip[4]; /* those detected by server */
114 guint16 client_port;
115 guint8 server_ip[4];
116 guint16 server_port;
117 time_t login_time;
118 guint8 unknown1[26];
119 guint8 unknown_server1_ip[4];
120 guint16 unknown_server1_port;
121 guint8 unknown_server2_ip[4];
122 guint16 unknown_server2_port;
123 guint16 unknown2; /* 0x0001 */
124 guint16 unknown3; /* 0x0000 */
125 guint8 unknown4[32];
126 guint8 unknown5[12];
127 guint8 last_client_ip[4];
128 time_t last_login_time;
129 guint8 unknown6[8];
130 };
131
132 struct _qq_login_reply_redirect {
133 guint8 result;
134 guint32 uid;
135 guint8 new_server_ip[4];
136 guint16 new_server_port;
137 };
138
139 extern gint /* defined in send_core.c */
140 _create_packet_head_seq(guint8 *buf,
141 guint8 **cursor, GaimConnection *gc, guint16 cmd, gboolean is_auto_seq, guint16 *seq);
142 extern gint /* defined in send_core.c */
143 _qq_send_packet(GaimConnection *gc, guint8 *buf, gint len, guint16 cmd);
144
145 /* It is fixed to 16 bytes 0x01 for QQ2003,
146 * Any value works (or a random 16 bytes string) */
147 static guint8 *_gen_login_key(void)
148 {
149 return (guint8 *) g_strnfill(QQ_KEY_LENGTH, 0x01);
150 }
151
152 /* process login reply which says OK */
153 static gint _qq_process_login_ok(GaimConnection *gc, guint8 *data, gint len)
154 {
155 gint bytes;
156 guint8 *cursor;
157 qq_data *qd;
158 qq_login_reply_ok_packet lrop;
159
160 g_return_val_if_fail(gc != NULL && gc->proto_data != NULL, QQ_LOGIN_REPLY_MISC_ERROR);
161
162 qd = (qq_data *) gc->proto_data;
163 cursor = data;
164 bytes = 0;
165
166 /* 000-000: reply code */
167 bytes += read_packet_b(data, &cursor, len, &lrop.result);
168 /* 001-016: session key */
169 lrop.session_key = g_memdup(cursor, QQ_KEY_LENGTH);
170 cursor += QQ_KEY_LENGTH;
171 bytes += QQ_KEY_LENGTH;
172 gaim_debug(GAIM_DEBUG_INFO, "QQ", "Get session_key done\n");
173 /* 017-020: login uid */
174 bytes += read_packet_dw(data, &cursor, len, &lrop.uid);
175 /* 021-024: server detected user public IP */
176 bytes += read_packet_data(data, &cursor, len, (guint8 *) & lrop.client_ip, 4);
177 /* 025-026: server detected user port */
178 bytes += read_packet_w(data, &cursor, len, &lrop.client_port);
179 /* 027-030: server detected itself ip 127.0.0.1 ? */
180 bytes += read_packet_data(data, &cursor, len, (guint8 *) & lrop.server_ip, 4);
181 /* 031-032: server listening port */
182 bytes += read_packet_w(data, &cursor, len, &lrop.server_port);
183 /* 033-036: login time for current session */
184 bytes += read_packet_dw(data, &cursor, len, (guint32 *) & lrop.login_time);
185 /* 037-062: 26 bytes, unknown */
186 bytes += read_packet_data(data, &cursor, len, (guint8 *) & lrop.unknown1, 26);
187 /* 063-066: unknown server1 ip address */
188 bytes += read_packet_data(data, &cursor, len, (guint8 *) & lrop.unknown_server1_ip, 4);
189 /* 067-068: unknown server1 port */
190 bytes += read_packet_w(data, &cursor, len, &lrop.unknown_server1_port);
191 /* 069-072: unknown server2 ip address */
192 bytes += read_packet_data(data, &cursor, len, (guint8 *) & lrop.unknown_server2_ip, 4);
193 /* 073-074: unknown server2 port */
194 bytes += read_packet_w(data, &cursor, len, &lrop.unknown_server2_port);
195 /* 075-076: 2 bytes unknown */
196 bytes += read_packet_w(data, &cursor, len, &lrop.unknown2);
197 /* 077-078: 2 bytes unknown */
198 bytes += read_packet_w(data, &cursor, len, &lrop.unknown3);
199 /* 079-110: 32 bytes unknown */
200 bytes += read_packet_data(data, &cursor, len, (guint8 *) & lrop.unknown4, 32);
201 /* 111-122: 12 bytes unknown */
202 bytes += read_packet_data(data, &cursor, len, (guint8 *) & lrop.unknown5, 12);
203 /* 123-126: login IP of last session */
204 bytes += read_packet_data(data, &cursor, len, (guint8 *) & lrop.last_client_ip, 4);
205 /* 127-130: login time of last session */
206 bytes += read_packet_dw(data, &cursor, len, (guint32 *) & lrop.last_login_time);
207 /* 131-138: 8 bytes unknown */
208 bytes += read_packet_data(data, &cursor, len, (guint8 *) & lrop.unknown6, 8);
209
210 if (bytes != QQ_LOGIN_REPLY_OK_PACKET_LEN) { /* fail parsing login info */
211 gaim_debug(GAIM_DEBUG_WARNING, "QQ",
212 "Fail parsing login info, expect %d bytes, read %d bytes\n",
213 QQ_LOGIN_REPLY_OK_PACKET_LEN, bytes);
214 } /* but we still go on as login OK */
215
216 qd->session_key = g_memdup(lrop.session_key, QQ_KEY_LENGTH);
217 qd->my_ip = gen_ip_str(lrop.client_ip);
218 qd->my_port = lrop.client_port;
219 qd->login_time = lrop.login_time;
220 qd->last_login_time = lrop.last_login_time;
221 qd->last_login_ip = gen_ip_str(lrop.last_client_ip);
222
223 g_free(lrop.session_key);
224
225 gaim_connection_set_state(gc, GAIM_CONNECTED);
226 qd->logged_in = TRUE; /* must be defined after sev_finish_login */
227
228 /* now initiate QQ Qun, do it first as it may take longer to finish */
229 qq_group_init(gc);
230
231 /* Now goes on updating my icon/nickname, not showing info_window */
232 qq_send_packet_get_info(gc, qd->uid, FALSE);
233 /* change my status manually, even server may broadcast my online */
234 qd->status = (qd->login_mode == QQ_LOGIN_MODE_HIDDEN) ? QQ_SELF_STATUS_INVISIBLE : QQ_SELF_STATUS_AVAILABLE;
235 qq_send_packet_change_status(gc);
236 /* now refresh buddy list */
237
238 /* changed by gfhuang, using With Qun version, error, not working still */
239 qq_send_packet_get_buddies_list(gc, QQ_FRIENDS_LIST_POSITION_START);
240 /* qq_send_packet_get_all_list_with_group(gc, QQ_FRIENDS_LIST_POSITION_START); */
241
242 return QQ_LOGIN_REPLY_OK;
243 }
244
245 /* process login reply packet which includes redirected new server address */
246 static gint _qq_process_login_redirect(GaimConnection *gc, guint8 *data, gint len)
247 {
248 gint bytes, ret;
249 guint8 *cursor;
250 gchar *new_server_str;
251 qq_data *qd;
252 qq_login_reply_redirect_packet lrrp;
253
254 g_return_val_if_fail(gc != NULL && gc->proto_data != NULL, QQ_LOGIN_REPLY_MISC_ERROR);
255
256 qd = (qq_data *) gc->proto_data;
257 cursor = data;
258 bytes = 0;
259 /* 000-000: reply code */
260 bytes += read_packet_b(data, &cursor, len, &lrrp.result);
261 /* 001-004: login uid */
262 bytes += read_packet_dw(data, &cursor, len, &lrrp.uid);
263 /* 005-008: redirected new server IP */
264 bytes += read_packet_data(data, &cursor, len, lrrp.new_server_ip, 4);
265 /* 009-010: redirected new server port */
266 bytes += read_packet_w(data, &cursor, len, &lrrp.new_server_port);
267
268 if (bytes != QQ_LOGIN_REPLY_REDIRECT_PACKET_LEN) {
269 gaim_debug(GAIM_DEBUG_ERROR, "QQ",
270 "Fail parsing login redirect packet, expect %d bytes, read %d bytes\n",
271 QQ_LOGIN_REPLY_REDIRECT_PACKET_LEN, bytes);
272 ret = QQ_LOGIN_REPLY_MISC_ERROR;
273 } else { /* start new connection */
274 new_server_str = gen_ip_str(lrrp.new_server_ip);
275 gaim_debug(GAIM_DEBUG_WARNING, "QQ",
276 "Redirected to new server: %s:%d\n", new_server_str, lrrp.new_server_port);
277 qq_connect(gc->account, new_server_str, lrrp.new_server_port, qd->use_tcp, TRUE);
278 g_free(new_server_str);
279 ret = QQ_LOGIN_REPLY_REDIRECT;
280 }
281
282 return ret;
283 }
284
285 /* process login reply which says wrong password */
286 static gint _qq_process_login_wrong_pwd(GaimConnection * gc, guint8 * data, gint len)
287 {
288 gchar *server_reply, *server_reply_utf8;
289 server_reply = g_new0(gchar, len);
290 g_memmove(server_reply, data + 1, len - 1);
291 server_reply_utf8 = qq_to_utf8(server_reply, QQ_CHARSET_DEFAULT);
292 gaim_debug(GAIM_DEBUG_ERROR, "QQ", "Wrong password, server msg in UTF8: %s\n", server_reply_utf8);
293 g_free(server_reply);
294 g_free(server_reply_utf8);
295
296 return QQ_LOGIN_REPLY_PWD_ERROR;
297 }
298
299 /* request before login */
300 void qq_send_packet_request_login_token(GaimConnection *gc)
301 {
302 qq_data *qd;
303 guint8 *buf, *cursor;
304 guint16 seq_ret;
305 gint bytes;
306
307 g_return_if_fail(gc != NULL && gc->proto_data != NULL);
308
309 qd = (qq_data *) gc->proto_data;
310 buf = g_newa(guint8, MAX_PACKET_SIZE);
311
312 cursor = buf;
313 bytes = 0;
314 bytes += _create_packet_head_seq(buf, &cursor, gc, QQ_CMD_REQUEST_LOGIN_TOKEN, TRUE, &seq_ret);
315 bytes += create_packet_dw(buf, &cursor, qd->uid);
316 bytes += create_packet_b(buf, &cursor, 0);
317 bytes += create_packet_b(buf, &cursor, QQ_PACKET_TAIL);
318
319 if (bytes == (cursor - buf)) /* packet creation OK */
320 _qq_send_packet(gc, buf, bytes, QQ_CMD_REQUEST_LOGIN_TOKEN);
321 else
322 gaim_debug(GAIM_DEBUG_ERROR, "QQ", "Fail create request login token packet\n");
323 }
324
325 /* TODO: The login packet and its response have changed by QQ2006 Beta2. In that version,
326 * the login OK response packet does not appear to be decryptable with qd->pwkey or qd->inikey.
327 * Fortunately, this older system still works. */
328
329 /* send login packet to QQ server */
330 static void qq_send_packet_login(GaimConnection *gc, guint8 token_length, guint8 *token)
331 {
332 qq_data *qd;
333 guint8 *buf, *cursor, *raw_data, *encrypted_data;
334 guint16 seq_ret;
335 gint encrypted_len, bytes;
336 gint pos;
337
338 g_return_if_fail(gc != NULL && gc->proto_data != NULL);
339
340 qd = (qq_data *) gc->proto_data;
341 buf = g_newa(guint8, MAX_PACKET_SIZE);
342 raw_data = g_newa(guint8, QQ_LOGIN_DATA_LENGTH);
343 encrypted_data = g_newa(guint8, QQ_LOGIN_DATA_LENGTH + 16); /* 16 bytes more */
344 qd->inikey = _gen_login_key();
345
346 /* now generate the encrypted data
347 * 000-015 use pwkey as key to encrypt empty string */
348 qq_crypt(ENCRYPT, (guint8 *) "", 0, qd->pwkey, raw_data, &encrypted_len);
349 /* 016-016 */
350 raw_data[16] = 0x00;
351 /* 017-020, used to be IP, now zero */
352 *((guint32 *) (raw_data + 17)) = 0x00000000;
353 /* 021-022, used to be port, now zero */
354 *((guint16 *) (raw_data + 21)) = 0x0000;
355 /* 023-051, fixed value, unknown */
356 g_memmove(raw_data + 23, login_23_51, 29);
357 /* 052-052, login mode */
358 raw_data[52] = qd->login_mode;
359 /* 053-068, fixed value, maybe related to per machine */
360 g_memmove(raw_data + 53, login_53_68, 16);
361
362 /* 069, login token length */
363 raw_data[69] = token_length;
364 pos = 70;
365 /* 070-093, login token, normally 24 bytes */
366 g_memmove(raw_data + pos, token, token_length);
367 pos += token_length;
368 /* 100 bytes unknown */
369 g_memmove(raw_data + pos, login_100_bytes, 100);
370 pos += 100;
371 /* all zero left */
372 memset(raw_data+pos, 0, QQ_LOGIN_DATA_LENGTH - pos);
373
374 qq_crypt(ENCRYPT, raw_data, QQ_LOGIN_DATA_LENGTH, qd->inikey, encrypted_data, &encrypted_len);
375
376 cursor = buf;
377 bytes = 0;
378 bytes += _create_packet_head_seq(buf, &cursor, gc, QQ_CMD_LOGIN, TRUE, &seq_ret);
379 bytes += create_packet_dw(buf, &cursor, qd->uid);
380 bytes += create_packet_data(buf, &cursor, qd->inikey, QQ_KEY_LENGTH);
381 bytes += create_packet_data(buf, &cursor, encrypted_data, encrypted_len);
382 bytes += create_packet_b(buf, &cursor, QQ_PACKET_TAIL);
383
384 if (bytes == (cursor - buf)) /* packet creation OK */
385 _qq_send_packet(gc, buf, bytes, QQ_CMD_LOGIN);
386 else
387 gaim_debug(GAIM_DEBUG_ERROR, "QQ", "Fail create login packet\n");
388 }
389
390 void qq_process_request_login_token_reply(guint8 *buf, gint buf_len, GaimConnection *gc)
391 {
392 qq_data *qd;
393
394 g_return_if_fail(gc != NULL && gc->proto_data != NULL);
395 g_return_if_fail(buf != NULL && buf_len != 0);
396
397 qd = (qq_data *) gc->proto_data;
398
399 if (buf[0] == QQ_REQUEST_LOGIN_TOKEN_REPLY_OK) {
400 if (buf[1] != buf_len-2) {
401 gaim_debug(GAIM_DEBUG_INFO, "QQ",
402 "Malformed login token reply packet. Packet specifies length of %d, actual length is %d\n", buf[1], buf_len-2);
403 gaim_debug(GAIM_DEBUG_INFO, "QQ",
404 "Attempting to proceed with the actual packet length.\n");
405 }
406 gaim_debug(GAIM_DEBUG_INFO, "QQ",
407 "<<< got a token with %d bytes -> [default] decrypt and dump\n%s",buf_len-2, hex_dump_to_str(buf+2, buf_len-2));
408 qq_send_packet_login(gc, buf_len-2, buf+2);
409 } else {
410 gaim_debug(GAIM_DEBUG_ERROR, "QQ", "Unknown request login token reply code : %d\n", buf[0]);
411 gaim_debug(GAIM_DEBUG_WARNING, "QQ",
412 ">>> %d bytes -> [default] decrypt and dump\n%s",
413 buf_len, hex_dump_to_str(buf, buf_len));
414 try_dump_as_gbk(buf, buf_len);
415 gaim_connection_error(gc, _("Request login token error!"));
416 }
417 }
418
419 /* send logout packets to QQ server */
420 void qq_send_packet_logout(GaimConnection *gc)
421 {
422 gint i;
423 qq_data *qd;
424
425 g_return_if_fail(gc != NULL && gc->proto_data != NULL);
426
427 qd = (qq_data *) gc->proto_data;
428 for (i = 0; i < 4; i++)
429 qq_send_cmd(gc, QQ_CMD_LOGOUT, FALSE, 0xffff, FALSE, qd->pwkey, QQ_KEY_LENGTH);
430
431 qd->logged_in = FALSE; /* update login status AFTER sending logout packets */
432 }
433
434 /* process the login reply packet */
435 void qq_process_login_reply(guint8 *buf, gint buf_len, GaimConnection *gc)
436 {
437 gint len, ret, bytes;
438 guint8 *data;
439 qq_data *qd;
440
441 g_return_if_fail(gc != NULL && gc->proto_data != NULL);
442 g_return_if_fail(buf != NULL && buf_len != 0);
443
444 qd = (qq_data *) gc->proto_data;
445 len = buf_len;
446 data = g_newa(guint8, len);
447
448 if (qq_crypt(DECRYPT, buf, buf_len, qd->pwkey, data, &len)) {
449 /* should be able to decrypt with pwkey */
450 gaim_debug(GAIM_DEBUG_INFO, "QQ", "Decrypt login reply packet with pwkey, %d bytes\n", len);
451 if (data[0] == QQ_LOGIN_REPLY_OK) {
452 ret = _qq_process_login_ok(gc, data, len);
453 } else {
454 gaim_debug(GAIM_DEBUG_ERROR, "QQ", "Unknown login reply code : %d\n", data[0]);
455 ret = QQ_LOGIN_REPLY_MISC_ERROR;
456 }
457 } else { /* decrypt with pwkey error */
458 len = buf_len; /* reset len, decrypt will fail if len is too short */
459 if (qq_crypt(DECRYPT, buf, buf_len, qd->inikey, data, &len)) {
460 /* decrypt ok with inipwd, it might be password error */
461 gaim_debug(GAIM_DEBUG_WARNING, "QQ",
462 "Decrypt login reply packet with inikey, %d bytes\n", len);
463 bytes = 0;
464 switch (data[0]) {
465 case QQ_LOGIN_REPLY_REDIRECT:
466 ret = _qq_process_login_redirect(gc, data, len);
467 break;
468 case QQ_LOGIN_REPLY_PWD_ERROR:
469 ret = _qq_process_login_wrong_pwd(gc, data, len);
470 break;
471 default:
472 gaim_debug(GAIM_DEBUG_ERROR, "QQ", "Unknown reply code: %d\n", data[0]);
473 gaim_debug(GAIM_DEBUG_WARNING, "QQ",
474 ">>> %d bytes -> [default] decrypt and dump\n%s",
475 buf_len, hex_dump_to_str(data, len));
476 try_dump_as_gbk(data, len);
477
478 ret = QQ_LOGIN_REPLY_MISC_ERROR;
479 }
480 } else { /* no idea how to decrypt */
481 gaim_debug(GAIM_DEBUG_ERROR, "QQ", "No idea how to decrypt login reply\n");
482 ret = QQ_LOGIN_REPLY_MISC_ERROR;
483 }
484 }
485
486 switch (ret) {
487 case QQ_LOGIN_REPLY_PWD_ERROR:
488 gc->wants_to_die = TRUE;
489 gaim_connection_error(gc, _("Wrong password!"));
490 break;
491 case QQ_LOGIN_REPLY_MISC_ERROR:
492 gaim_connection_error(gc, _("Unable to login, check debug log"));
493 break;
494 case QQ_LOGIN_REPLY_OK:
495 gaim_debug(GAIM_DEBUG_INFO, "QQ", "Login replys OK, everything is fine\n");
496 break;
497 case QQ_LOGIN_REPLY_REDIRECT:
498 /* the redirect has been done in _qq_process_login_reply */
499 break;
500 default:{;
501 }
502 }
503 }

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