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comparison: libpurple/protocols/yahoo/yahoo_picture.c

libpurple/protocols/yahoo/yahoo_picture.c

branch
release-2.x.y
changeset 38089
da90fe7312d3
parent 38088
f35cd65fd935
child 38090
a00621dae17f
equal deleted inserted replaced
38088:f35cd65fd935 38089:da90fe7312d3
1 /*
2 * purple
3 *
4 * Purple is the legal property of its developers, whose names are too numerous
5 * to list here. Please refer to the COPYRIGHT file distributed with this
6 * source distribution.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
21 *
22 */
23
24 #include "internal.h"
25
26 #include "account.h"
27 #include "accountopt.h"
28 #include "blist.h"
29 #include "debug.h"
30 #include "privacy.h"
31 #include "prpl.h"
32 #include "proxy.h"
33 #include "util.h"
34
35 #include "libymsg.h"
36 #include "yahoo_packet.h"
37 #include "yahoo_friend.h"
38 #include "yahoo_picture.h"
39
40
41 struct yahoo_fetch_picture_data {
42 PurpleConnection *gc;
43 char *who;
44 int checksum;
45 };
46
47 static void
48 yahoo_fetch_picture_cb(PurpleUtilFetchUrlData *url_data, gpointer user_data,
49 const gchar *pic_data, size_t len, const gchar *error_message)
50 {
51 struct yahoo_fetch_picture_data *d;
52 YahooData *yd;
53
54 d = user_data;
55 yd = d->gc->proto_data;
56 yd->url_datas = g_slist_remove(yd->url_datas, url_data);
57
58 if (error_message != NULL) {
59 purple_debug_error("yahoo", "Fetching buddy icon failed: %s\n", error_message);
60 } else if (len == 0) {
61 purple_debug_error("yahoo", "Fetched an icon with length 0. Strange.\n");
62 } else {
63 char *checksum = g_strdup_printf("%i", d->checksum);
64 purple_buddy_icons_set_for_user(purple_connection_get_account(d->gc), d->who, g_memdup(pic_data, len), len, checksum);
65 g_free(checksum);
66 }
67
68 g_free(d->who);
69 g_free(d);
70 }
71
72 void yahoo_process_picture(PurpleConnection *gc, struct yahoo_packet *pkt)
73 {
74 YahooData *yd;
75 GSList *l = pkt->hash;
76 char *who = NULL;
77 gboolean got_icon_info = FALSE, send_icon_info = FALSE;
78 char *url = NULL;
79 int checksum = 0;
80
81 while (l) {
82 struct yahoo_pair *pair = l->data;
83
84 switch (pair->key) {
85 case 1:
86 case 4:
87 if (g_utf8_validate(pair->value, -1, NULL)) {
88 who = pair->value;
89 } else {
90 purple_debug_warning("yahoo", "yahoo_process_picture "
91 "got non-UTF-8 string for key %d\n", pair->key);
92 }
93 break;
94 case 5: /* us */
95 break;
96 case 13: {
97 int tmp;
98 tmp = strtol(pair->value, NULL, 10);
99 if (tmp == 1) {
100 send_icon_info = TRUE;
101 } else if (tmp == 2) {
102 got_icon_info = TRUE;
103 }
104 break;
105 }
106 case 20:
107 if (g_utf8_validate(pair->value, -1, NULL)) {
108 url = pair->value;
109 } else {
110 purple_debug_warning("yahoo", "yahoo_process_picture "
111 "got non-UTF-8 string for key %d\n", pair->key);
112 }
113 break;
114 case 192:
115 checksum = strtol(pair->value, NULL, 10);
116 break;
117 }
118
119 l = l->next;
120 }
121
122 if (!who)
123 return;
124
125 if (!purple_privacy_check(purple_connection_get_account(gc), who)) {
126 purple_debug_info("yahoo", "Picture packet from %s dropped.\n", who);
127 return;
128 }
129
130 /* Yahoo IM 6 spits out 0.png as the URL if the buddy icon is not set */
131 if (who && got_icon_info && url && !g_ascii_strncasecmp(url, "http://", 7)) {
132 /* TODO: make this work p2p, try p2p before the url */
133 PurpleUtilFetchUrlData *url_data;
134 struct yahoo_fetch_picture_data *data;
135 /* use whole URL if using HTTP Proxy */
136 gboolean use_whole_url = yahoo_account_use_http_proxy(gc);
137
138 data = g_new0(struct yahoo_fetch_picture_data, 1);
139 data->gc = gc;
140 data->who = g_strdup(who);
141 data->checksum = checksum;
142 /* TODO: Does this need to be MSIE 5.0? */
143 url_data = purple_util_fetch_url(url, use_whole_url,
144 "Mozilla/4.0 (compatible; MSIE 5.5)", FALSE,
145 yahoo_fetch_picture_cb, data);
146 if (url_data != NULL) {
147 yd = gc->proto_data;
148 yd->url_datas = g_slist_prepend(yd->url_datas, url_data);
149 }
150 } else if (who && send_icon_info) {
151 yahoo_send_picture_info(gc, who);
152 }
153 }
154
155 void yahoo_process_picture_checksum(PurpleConnection *gc, struct yahoo_packet *pkt)
156 {
157 GSList *l = pkt->hash;
158 char *who = NULL;
159 int checksum = 0;
160
161 while (l) {
162 struct yahoo_pair *pair = l->data;
163
164 switch (pair->key) {
165 case 4:
166 if (g_utf8_validate(pair->value, -1, NULL)) {
167 who = pair->value;
168 } else {
169 purple_debug_warning("yahoo", "yahoo_process_picture_checksum "
170 "got non-UTF-8 string for key %d\n", pair->key);
171 }
172 break;
173 case 5:
174 /* us */
175 break;
176 case 192:
177 checksum = strtol(pair->value, NULL, 10);
178 break;
179 }
180 l = l->next;
181 }
182
183 if (who) {
184 PurpleBuddy *b = purple_find_buddy(gc->account, who);
185 const char *locksum = NULL;
186
187 /* FIXME: Cleanup this strtol() stuff if possible. */
188 if (b) {
189 locksum = purple_buddy_icons_get_checksum_for_user(b);
190 if (!locksum || (checksum != strtol(locksum, NULL, 10)))
191 yahoo_send_picture_request(gc, who);
192 }
193 }
194 }
195
196 void yahoo_process_picture_upload(PurpleConnection *gc, struct yahoo_packet *pkt)
197 {
198 PurpleAccount *account = purple_connection_get_account(gc);
199 YahooData *yd = gc->proto_data;
200 GSList *l = pkt->hash;
201 char *url = NULL;
202
203 while (l) {
204 struct yahoo_pair *pair = l->data;
205
206 switch (pair->key) {
207 case 5:
208 /* us */
209 break;
210 case 27:
211 /* filename on our computer. */
212 break;
213 case 20: /* url at yahoo */
214 if (g_utf8_validate(pair->value, -1, NULL)) {
215 url = pair->value;
216 } else {
217 purple_debug_warning("yahoo", "yahoo_process_picture_upload "
218 "got non-UTF-8 string for key %d\n", pair->key);
219 }
220 case 38: /* timestamp */
221 break;
222 }
223 l = l->next;
224 }
225
226 if (url) {
227 g_free(yd->picture_url);
228 yd->picture_url = g_strdup(url);
229 purple_account_set_string(account, YAHOO_PICURL_SETTING, url);
230 purple_account_set_int(account, YAHOO_PICCKSUM_SETTING, yd->picture_checksum);
231 yahoo_send_picture_checksum(gc);
232 yahoo_send_picture_update(gc, 2);
233 }
234 }
235
236 void yahoo_process_avatar_update(PurpleConnection *gc, struct yahoo_packet *pkt)
237 {
238 GSList *l = pkt->hash;
239 char *who = NULL;
240 int avatar = 0;
241
242 while (l) {
243 struct yahoo_pair *pair = l->data;
244
245 switch (pair->key) {
246 case 4:
247 if (g_utf8_validate(pair->value, -1, NULL)) {
248 who = pair->value;
249 } else {
250 purple_debug_warning("yahoo", "yahoo_process_avatar_upload "
251 "got non-UTF-8 string for key %d\n", pair->key);
252 }
253 break;
254 case 5:
255 /* us */
256 break;
257 case 206: /* Older versions. Still needed? */
258 case 213: /* Newer versions */
259 /*
260 * 0 - No icon or avatar
261 * 1 - Using an avatar
262 * 2 - Using an icon
263 */
264 avatar = strtol(pair->value, NULL, 10);
265 break;
266 }
267 l = l->next;
268 }
269
270 if (who) {
271 if (avatar == 2)
272 yahoo_send_picture_request(gc, who);
273 else if ((avatar == 0) || (avatar == 1)) {
274 YahooFriend *f;
275 purple_buddy_icons_set_for_user(gc->account, who, NULL, 0, NULL);
276 if ((f = yahoo_friend_find(gc, who)))
277 yahoo_friend_set_buddy_icon_need_request(f, TRUE);
278 purple_debug_misc("yahoo", "Setting user %s's icon to NULL.\n", who);
279 }
280 }
281 }
282
283 void yahoo_send_picture_info(PurpleConnection *gc, const char *who)
284 {
285 YahooData *yd = gc->proto_data;
286 struct yahoo_packet *pkt;
287
288 if (!yd->picture_url) {
289 purple_debug_warning("yahoo", "Attempted to send picture info without a picture\n");
290 return;
291 }
292
293 pkt = yahoo_packet_new(YAHOO_SERVICE_PICTURE, YAHOO_STATUS_AVAILABLE, yd->session_id);
294 yahoo_packet_hash(pkt, "ssssi", 1, purple_connection_get_display_name(gc),
295 5, who,
296 13, "2", 20, yd->picture_url, 192, yd->picture_checksum);
297 yahoo_packet_send_and_free(pkt, yd);
298 }
299
300 void yahoo_send_picture_request(PurpleConnection *gc, const char *who)
301 {
302 YahooData *yd = gc->proto_data;
303 struct yahoo_packet *pkt;
304
305 pkt = yahoo_packet_new(YAHOO_SERVICE_PICTURE, YAHOO_STATUS_AVAILABLE, yd->session_id);
306 yahoo_packet_hash_str(pkt, 1, purple_connection_get_display_name(gc)); /* me */
307 yahoo_packet_hash_str(pkt, 5, who); /* the other guy */
308 yahoo_packet_hash_str(pkt, 13, "1"); /* 1 = request, 2 = reply */
309 yahoo_packet_send_and_free(pkt, yd);
310 }
311
312 void yahoo_send_picture_checksum(PurpleConnection *gc)
313 {
314 YahooData *yd = gc->proto_data;
315 struct yahoo_packet *pkt;
316
317 pkt = yahoo_packet_new(YAHOO_SERVICE_PICTURE_CHECKSUM, YAHOO_STATUS_AVAILABLE, yd->session_id);
318 yahoo_packet_hash(pkt, "ssi", 1, purple_connection_get_display_name(gc),
319 212, "1", 192, yd->picture_checksum);
320 yahoo_packet_send_and_free(pkt, yd);
321 }
322
323 void yahoo_send_picture_update_to_user(PurpleConnection *gc, const char *who, int type)
324 {
325 YahooData *yd = gc->proto_data;
326 struct yahoo_packet *pkt;
327
328 pkt = yahoo_packet_new(YAHOO_SERVICE_AVATAR_UPDATE, YAHOO_STATUS_AVAILABLE, yd->session_id);
329 yahoo_packet_hash(pkt, "si", 3, who, 213, type);
330 yahoo_packet_send_and_free(pkt, yd);
331 }
332
333 struct yspufe {
334 PurpleConnection *gc;
335 int type;
336 };
337
338 static void yahoo_send_picture_update_foreach(gpointer key, gpointer value, gpointer data)
339 {
340 const char *who = key;
341 YahooFriend *f = value;
342 struct yspufe *d = data;
343
344 if (f->status != YAHOO_STATUS_OFFLINE)
345 yahoo_send_picture_update_to_user(d->gc, who, d->type);
346 }
347
348 void yahoo_send_picture_update(PurpleConnection *gc, int type)
349 {
350 YahooData *yd = gc->proto_data;
351 struct yspufe data;
352
353 data.gc = gc;
354 data.type = type;
355
356 g_hash_table_foreach(yd->friends, yahoo_send_picture_update_foreach, &data);
357 }
358
359 void yahoo_buddy_icon_upload_data_free(struct yahoo_buddy_icon_upload_data *d)
360 {
361 purple_debug_misc("yahoo", "In yahoo_buddy_icon_upload_data_free()\n");
362
363 if (d->str)
364 g_string_free(d->str, TRUE);
365 g_free(d->filename);
366 if (d->watcher)
367 purple_input_remove(d->watcher);
368 if (d->fd != -1)
369 close(d->fd);
370 g_free(d);
371 }
372
373 /* we couldn't care less about the server's response, but yahoo gets grumpy if we close before it sends it */
374 static void yahoo_buddy_icon_upload_reading(gpointer data, gint source, PurpleInputCondition condition)
375 {
376 struct yahoo_buddy_icon_upload_data *d = data;
377 PurpleConnection *gc = d->gc;
378 char buf[1024];
379 int ret;
380
381 if (!PURPLE_CONNECTION_IS_VALID(gc)) {
382 yahoo_buddy_icon_upload_data_free(d);
383 return;
384 }
385
386 ret = read(d->fd, buf, sizeof(buf));
387
388 if (ret < 0 && errno == EAGAIN)
389 return;
390 else if (ret <= 0) {
391 /* There are other problems if d->str->len overflows, so shut up the
392 * warning on 64-bit. */
393 purple_debug_info("yahoo", "Buddy icon upload response (%" G_GSIZE_FORMAT ") bytes (> ~400 indicates failure):\n%.*s\n",
394 d->str->len, (guint)d->str->len, d->str->str);
395
396 yahoo_buddy_icon_upload_data_free(d);
397 return;
398 }
399
400 g_string_append_len(d->str, buf, ret);
401 }
402
403 static void yahoo_buddy_icon_upload_pending(gpointer data, gint source, PurpleInputCondition condition)
404 {
405 struct yahoo_buddy_icon_upload_data *d = data;
406 PurpleConnection *gc = d->gc;
407 gssize wrote;
408
409 if (!PURPLE_CONNECTION_IS_VALID(gc)) {
410 yahoo_buddy_icon_upload_data_free(d);
411 return;
412 }
413
414 wrote = write(d->fd, d->str->str + d->pos, d->str->len - d->pos);
415 if (wrote < 0 && errno == EAGAIN)
416 return;
417 if (wrote <= 0) {
418 purple_debug_info("yahoo", "Error uploading buddy icon.\n");
419 yahoo_buddy_icon_upload_data_free(d);
420 return;
421 }
422 d->pos += wrote;
423 if ((size_t)d->pos >= d->str->len) {
424 purple_debug_misc("yahoo", "Finished uploading buddy icon.\n");
425 purple_input_remove(d->watcher);
426 /* Clean out the sent buffer and reuse it to read the result */
427 g_string_free(d->str, TRUE);
428 d->str = g_string_new("");
429 d->watcher = purple_input_add(d->fd, PURPLE_INPUT_READ, yahoo_buddy_icon_upload_reading, d);
430 }
431 }
432
433 static void yahoo_buddy_icon_upload_connected(gpointer data, gint source, const gchar *error_message)
434 {
435 struct yahoo_buddy_icon_upload_data *d = data;
436 struct yahoo_packet *pkt;
437 gchar *tmp, *header;
438 guchar *pkt_buf;
439 const char *host;
440 int port;
441 gsize pkt_buf_len;
442 PurpleConnection *gc = d->gc;
443 PurpleAccount *account;
444 YahooData *yd;
445 /* use whole URL if using HTTP Proxy */
446 gboolean use_whole_url = yahoo_account_use_http_proxy(gc);
447
448 account = purple_connection_get_account(gc);
449 yd = gc->proto_data;
450
451 /* Buddy icon connect is now complete; clear the PurpleProxyConnectData */
452 yd->buddy_icon_connect_data = NULL;
453
454 if (source < 0) {
455 purple_debug_error("yahoo", "Buddy icon upload failed: %s\n", error_message);
456 yahoo_buddy_icon_upload_data_free(d);
457 return;
458 }
459
460 pkt = yahoo_packet_new(YAHOO_SERVICE_PICTURE_UPLOAD, YAHOO_STATUS_AVAILABLE, yd->session_id);
461
462 tmp = g_strdup_printf("%" G_GSIZE_FORMAT, d->str->len);
463 /* 1 = me, 38 = expire time(?), 0 = me, 28 = size, 27 = filename, 14 = NULL, 29 = data */
464 yahoo_packet_hash_str(pkt, 1, purple_connection_get_display_name(gc));
465 yahoo_packet_hash_str(pkt, 38, "604800"); /* time til expire */
466 purple_account_set_int(account, YAHOO_PICEXPIRE_SETTING, time(NULL) + 604800);
467 yahoo_packet_hash_str(pkt, 0, purple_connection_get_display_name(gc));
468 yahoo_packet_hash_str(pkt, 28, tmp);
469 g_free(tmp);
470 yahoo_packet_hash_str(pkt, 27, d->filename);
471 yahoo_packet_hash_str(pkt, 14, "");
472 /* 4 padding for the 29 key name */
473 pkt_buf_len = yahoo_packet_build(pkt, 4, FALSE, yd->jp, &pkt_buf);
474 yahoo_packet_free(pkt);
475
476 /* header + packet + "29" + 0xc0 + 0x80) + pictureblob */
477
478 host = purple_account_get_string(account, "xfer_host", yd->jp? YAHOOJP_XFER_HOST : YAHOO_XFER_HOST);
479 port = purple_account_get_int(account, "xfer_port", YAHOO_XFER_PORT);
480 tmp = g_strdup_printf("%s:%d", host, port);
481 header = g_strdup_printf("POST %s%s/notifyft HTTP/1.1\r\n"
482 "User-Agent: " YAHOO_CLIENT_USERAGENT "\r\n"
483 "Cookie: T=%s; Y=%s\r\n"
484 "Host: %s\r\n"
485 "Content-Length: %" G_GSIZE_FORMAT "\r\n"
486 "Cache-Control: no-cache\r\n\r\n",
487 use_whole_url ? "http://" : "", use_whole_url ? tmp : "",
488 yd->cookie_t, yd->cookie_y,
489 tmp,
490 pkt_buf_len + 4 + d->str->len);
491 g_free(tmp);
492
493 /* There's no magic here, we just need to prepend in reverse order */
494 g_string_prepend(d->str, "29\xc0\x80");
495
496 g_string_prepend_len(d->str, (char *)pkt_buf, pkt_buf_len);
497 g_free(pkt_buf);
498
499 g_string_prepend(d->str, header);
500 g_free(header);
501
502 /* There are other problems if we're uploading over 4GB of data */
503 purple_debug_info("yahoo", "Buddy icon upload data:\n%.*s\n", (guint)d->str->len, d->str->str);
504
505 d->fd = source;
506 d->watcher = purple_input_add(d->fd, PURPLE_INPUT_WRITE, yahoo_buddy_icon_upload_pending, d);
507
508 yahoo_buddy_icon_upload_pending(d, d->fd, PURPLE_INPUT_WRITE);
509 }
510
511 void yahoo_buddy_icon_upload(PurpleConnection *gc, struct yahoo_buddy_icon_upload_data *d)
512 {
513 PurpleAccount *account = purple_connection_get_account(gc);
514 YahooData *yd = gc->proto_data;
515
516 if (yd->buddy_icon_connect_data != NULL) {
517 /* Cancel any in-progress buddy icon upload */
518 purple_proxy_connect_cancel(yd->buddy_icon_connect_data);
519 yd->buddy_icon_connect_data = NULL;
520 }
521
522 yd->buddy_icon_connect_data = purple_proxy_connect(NULL, account,
523 purple_account_get_string(account, "xfer_host",
524 yd->jp? YAHOOJP_XFER_HOST : YAHOO_XFER_HOST),
525 purple_account_get_int(account, "xfer_port", YAHOO_XFER_PORT),
526 yahoo_buddy_icon_upload_connected, d);
527
528 if (yd->buddy_icon_connect_data == NULL)
529 {
530 purple_debug_error("yahoo", "Uploading our buddy icon failed to connect.\n");
531 yahoo_buddy_icon_upload_data_free(d);
532 }
533 }
534
535 static int yahoo_buddy_icon_calculate_checksum(const guchar *data, gsize len)
536 {
537 /* This code is borrowed from Kopete, which seems to be managing to calculate
538 checksums in such a manner that Yahoo!'s servers are happy */
539
540 const guchar *p = data;
541 int checksum = 0, g, i = len;
542
543 while(i--) {
544 checksum = (checksum << 4) + *p++;
545
546 if((g = (checksum & 0xf0000000)) != 0)
547 checksum ^= g >> 23;
548
549 checksum &= ~g;
550 }
551
552 purple_debug_misc("yahoo", "Calculated buddy icon checksum: %d\n", checksum);
553
554 return checksum;
555 }
556
557 void yahoo_set_buddy_icon(PurpleConnection *gc, PurpleStoredImage *img)
558 {
559 YahooData *yd = gc->proto_data;
560 PurpleAccount *account = gc->account;
561
562 if (img == NULL) {
563 g_free(yd->picture_url);
564 yd->picture_url = NULL;
565
566 /* TODO: don't we have to clear it on the server too?! */
567
568 purple_account_set_string(account, YAHOO_PICURL_SETTING, NULL);
569 purple_account_set_int(account, YAHOO_PICCKSUM_SETTING, 0);
570 purple_account_set_int(account, YAHOO_PICEXPIRE_SETTING, 0);
571 if (yd->logged_in)
572 /* Tell everyone we ain't got one no more */
573 yahoo_send_picture_update(gc, 0);
574
575 } else {
576 gconstpointer data = purple_imgstore_get_data(img);
577 size_t len = purple_imgstore_get_size(img);
578 GString *s = g_string_new_len(data, len);
579 struct yahoo_buddy_icon_upload_data *d;
580 int oldcksum = purple_account_get_int(account, YAHOO_PICCKSUM_SETTING, 0);
581 int expire = purple_account_get_int(account, YAHOO_PICEXPIRE_SETTING, 0);
582 const char *oldurl = purple_account_get_string(account, YAHOO_PICURL_SETTING, NULL);
583
584 yd->picture_checksum = yahoo_buddy_icon_calculate_checksum(data, len);
585
586 if ((yd->picture_checksum == oldcksum) &&
587 (expire > (time(NULL) + 60*60*24)) && oldurl)
588 {
589 purple_debug_misc("yahoo", "buddy icon is up to date. Not reuploading.\n");
590 g_string_free(s, TRUE);
591 g_free(yd->picture_url);
592 yd->picture_url = g_strdup(oldurl);
593 return;
594 }
595
596 /* We use this solely for sending a filename to the server */
597 d = g_new0(struct yahoo_buddy_icon_upload_data, 1);
598 d->gc = gc;
599 d->str = s;
600 d->fd = -1;
601 d->filename = g_strdup(purple_imgstore_get_filename(img));
602
603 if (!yd->logged_in) {
604 yd->picture_upload_todo = d;
605 return;
606 }
607
608 yahoo_buddy_icon_upload(gc, d);
609
610 }
611 }

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