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iq.c @ 7616eec

Last change on this file since 7616eec was 7554702, checked in by dequis <dx@…>, at 2015-11-25T15:56:09Z

jabber: Reply unknown IQs with service-unavailable instead

It was sending 'feature-not-implemented' for <query> with unknown xmlns
(which makes sense, but the RFC says that's wrong. idk.) and nothing at
all for IQs that don't have query/ping/time elements or an xmlns
attribute. Both get service-unavailable now.

Addresses the rest of trac ticket 533:

https://bugs.bitlbee.org/bitlbee/ticket/533

Property mode set to 100644

File size: 31.7 KB

Line
1	/***************************************************************************\
2	* *
3	* BitlBee - An IRC to IM gateway *
4	* Jabber module - IQ packets *
5	* *
6	* Copyright 2006-2012 Wilmer van der Gaast <wilmer@gaast.net> *
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 along *
19	* with this program; if not, write to the Free Software Foundation, Inc., *
20	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
21	* *
22	\***************************************************************************/
23
24	#include "jabber.h"
25	#include "sha1.h"
26
27	static xt_status jabber_parse_roster(struct im_connection ic, struct xt_node node, struct xt_node *orig);
28	static xt_status jabber_iq_display_vcard(struct im_connection ic, struct xt_node node, struct xt_node *orig);
29	static xt_status jabber_gmail_handle_new(struct im_connection ic, struct xt_node node);
30	static xt_status jabber_iq_carbons_response(struct im_connection ic, struct xt_node node, struct xt_node *orig);
31
32	xt_status jabber_pkt_iq(struct xt_node *node, gpointer data)
33	{
34	struct im_connection *ic = data;
35	struct jabber_data *jd = ic->proto_data;
36	struct xt_node c, reply = NULL;
37	char type, s;
38	int st, pack = 1;
39
40	type = xt_find_attr(node, "type");
41
42	if (!type) {
43	imcb_error(ic, "Received IQ packet without type.");
44	imc_logout(ic, TRUE);
45	return XT_ABORT;
46	}
47
48	if (strcmp(type, "result") == 0 \|\| strcmp(type, "error") == 0) {
49	return jabber_cache_handle_packet(ic, node);
50	} else if (strcmp(type, "get") == 0) {
51	if (!((c = xt_find_node(node->children, "query")) \|\|
52	(c = xt_find_node(node->children, "ping")) \|\|
53	(c = xt_find_node(node->children, "time"))) \|\|
54	!(s = xt_find_attr(c, "xmlns"))) {
55
56	reply = jabber_make_error_packet(node, "service-unavailable", "cancel", NULL);
57	st = jabber_write_packet(ic, reply);
58	xt_free_node(reply);
59	return st;
60	}
61
62	reply = xt_new_node("query", NULL, NULL);
63	xt_add_attr(reply, "xmlns", s);
64
65	/* Of course this is a very essential query to support. ;-) */
66	if (strcmp(s, XMLNS_VERSION) == 0) {
67	xt_add_child(reply, xt_new_node("name", set_getstr(&ic->acc->set, "user_agent"), NULL));
68	xt_add_child(reply, xt_new_node("version", BITLBEE_VERSION, NULL));
69	xt_add_child(reply, xt_new_node("os", ARCH, NULL));
70	} else if (strcmp(s, XMLNS_TIME_OLD) == 0) {
71	time_t time_ep;
72	char buf[1024];
73
74	buf[sizeof(buf) - 1] = 0;
75	time_ep = time(NULL);
76
77	strftime(buf, sizeof(buf) - 1, "%Y%m%dT%H:%M:%S", gmtime(&time_ep));
78	xt_add_child(reply, xt_new_node("utc", buf, NULL));
79
80	strftime(buf, sizeof(buf) - 1, "%Z", localtime(&time_ep));
81	xt_add_child(reply, xt_new_node("tz", buf, NULL));
82	} else if (strcmp(s, XMLNS_TIME) == 0) {
83	time_t time_ep;
84	char buf[1024];
85
86	buf[sizeof(buf) - 1] = 0;
87	time_ep = time(NULL);
88
89	xt_free_node(reply);
90	reply = xt_new_node("time", NULL, NULL);
91	xt_add_attr(reply, "xmlns", XMLNS_TIME);
92
93	strftime(buf, sizeof(buf) - 1, "%Y%m%dT%H:%M:%SZ", gmtime(&time_ep));
94	xt_add_child(reply, xt_new_node("utc", buf, NULL));
95
96	strftime(buf, sizeof(buf) - 1, "%z", localtime(&time_ep));
97	if (strlen(buf) >= 5) {
98	buf[6] = '\0';
99	buf[5] = buf[4];
100	buf[4] = buf[3];
101	buf[3] = ':';
102	}
103	xt_add_child(reply, xt_new_node("tzo", buf, NULL));
104	} else if (strcmp(s, XMLNS_PING) == 0) {
105	xt_free_node(reply);
106	reply = jabber_make_packet("iq", "result", xt_find_attr(node, "from"), NULL);
107	if ((s = xt_find_attr(node, "id"))) {
108	xt_add_attr(reply, "id", s);
109	}
110	pack = 0;
111	} else if (strcmp(s, XMLNS_DISCO_INFO) == 0) {
112	const char *features[] = { XMLNS_DISCO_INFO,
113	XMLNS_VERSION,
114	XMLNS_TIME_OLD,
115	XMLNS_TIME,
116	XMLNS_CHATSTATES,
117	XMLNS_MUC,
118	XMLNS_PING,
119	XMLNS_RECEIPTS,
120	XMLNS_SI,
121	XMLNS_BYTESTREAMS,
122	XMLNS_FILETRANSFER,
123	XMLNS_CARBONS,
124	NULL };
125	const char **f;
126
127	c = xt_new_node("identity", NULL, NULL);
128	xt_add_attr(c, "category", "client");
129	xt_add_attr(c, "type", "pc");
130	xt_add_attr(c, "name", set_getstr(&ic->acc->set, "user_agent"));
131	xt_add_child(reply, c);
132
133	for (f = features; *f; f++) {
134	c = xt_new_node("feature", NULL, NULL);
135	xt_add_attr(c, "var", *f);
136	xt_add_child(reply, c);
137	}
138	} else {
139	xt_free_node(reply);
140	reply = jabber_make_error_packet(node, "service-unavailable", "cancel", NULL);
141	pack = 0;
142	}
143	} else if (strcmp(type, "set") == 0) {
144	if ((c = xt_find_node(node->children, "si")) &&
145	(s = xt_find_attr(c, "xmlns")) &&
146	(strcmp(s, XMLNS_SI) == 0)) {
147	return jabber_si_handle_request(ic, node, c);
148	} else if ((c = xt_find_node(node->children, "new-mail")) &&
149	(s = xt_find_attr(c, "xmlns")) &&
150	(strcmp(s, XMLNS_GMAILNOTIFY) == 0)) {
151	return jabber_gmail_handle_new(ic, node);
152	} else if (!(c = xt_find_node(node->children, "query")) \|\|
153	!(s = xt_find_attr(c, "xmlns"))) {
154	return XT_HANDLED;
155	} else if (strcmp(s, XMLNS_ROSTER) == 0) {
156	/* This is a roster push. XMPP servers send this when someone
157	was added to (or removed from) the buddy list. AFAIK they're
158	sent even if we added this buddy in our own session. */
159	int bare_len = strlen(jd->me);
160
161	if ((s = xt_find_attr(node, "from")) == NULL \|\|
162	(strncmp(s, jd->me, bare_len) == 0 &&
163	(s[bare_len] == 0 \|\| s[bare_len] == '/'))) {
164	jabber_parse_roster(ic, node, NULL);
165
166	/* Should we generate a reply here? Don't think it's
167	very important... */
168	} else {
169	imcb_log(ic, "Warning: %s tried to fake a roster push!", s ? s : "(unknown)");
170
171	xt_free_node(reply);
172	reply = jabber_make_error_packet(node, "not-allowed", "cancel", NULL);
173	pack = 0;
174	}
175	} else if (strcmp(s, XMLNS_BYTESTREAMS) == 0) {
176	/* Bytestream Request (stage 2 of file transfer) */
177	return jabber_bs_recv_request(ic, node, c);
178	} else {
179	xt_free_node(reply);
180	reply = jabber_make_error_packet(node, "feature-not-implemented", "cancel", NULL);
181	pack = 0;
182	}
183	}
184
185	/* If we recognized the xmlns and managed to generate a reply,
186	finish and send it. */
187	if (reply) {
188	/* Normally we still have to pack it into an iq-result
189	packet, but for errors, for example, we don't. */
190	if (pack) {
191	reply = jabber_make_packet("iq", "result", xt_find_attr(node, "from"), reply);
192	if ((s = xt_find_attr(node, "id"))) {
193	xt_add_attr(reply, "id", s);
194	}
195	}
196
197	st = jabber_write_packet(ic, reply);
198	xt_free_node(reply);
199	if (!st) {
200	return XT_ABORT;
201	}
202	}
203
204	return XT_HANDLED;
205	}
206
207	static xt_status jabber_do_iq_auth(struct im_connection ic, struct xt_node node, struct xt_node *orig);
208	static xt_status jabber_finish_iq_auth(struct im_connection ic, struct xt_node node, struct xt_node *orig);
209
210	int jabber_init_iq_auth(struct im_connection *ic)
211	{
212	struct jabber_data *jd = ic->proto_data;
213	struct xt_node *node;
214	int st;
215
216	node = xt_new_node("query", NULL, xt_new_node("username", jd->username, NULL));
217	xt_add_attr(node, "xmlns", XMLNS_AUTH);
218	node = jabber_make_packet("iq", "get", NULL, node);
219
220	jabber_cache_add(ic, node, jabber_do_iq_auth);
221	st = jabber_write_packet(ic, node);
222
223	return st;
224	}
225
226	static xt_status jabber_do_iq_auth(struct im_connection ic, struct xt_node node, struct xt_node *orig)
227	{
228	struct jabber_data *jd = ic->proto_data;
229	struct xt_node reply, query;
230	xt_status st;
231	char *s;
232
233	if (!(query = xt_find_node(node->children, "query"))) {
234	imcb_log(ic, "Warning: Received incomplete IQ packet while authenticating");
235	imc_logout(ic, FALSE);
236	return XT_HANDLED;
237	}
238
239	/* Time to authenticate ourselves! */
240	reply = xt_new_node("query", NULL, NULL);
241	xt_add_attr(reply, "xmlns", XMLNS_AUTH);
242	xt_add_child(reply, xt_new_node("username", jd->username, NULL));
243	xt_add_child(reply, xt_new_node("resource", set_getstr(&ic->acc->set, "resource"), NULL));
244
245	if (xt_find_node(query->children, "digest") && (s = xt_find_attr(jd->xt->root, "id"))) {
246	/* We can do digest authentication, it seems, and of
247	course we prefer that. */
248	sha1_state_t sha;
249	char hash_hex[41];
250	unsigned char hash[20];
251	int i;
252
253	sha1_init(&sha);
254	sha1_append(&sha, (unsigned char *) s, strlen(s));
255	sha1_append(&sha, (unsigned char *) ic->acc->pass, strlen(ic->acc->pass));
256	sha1_finish(&sha, hash);
257
258	for (i = 0; i < 20; i++) {
259	sprintf(hash_hex + i * 2, "%02x", hash[i]);
260	}
261
262	xt_add_child(reply, xt_new_node("digest", hash_hex, NULL));
263	} else if (xt_find_node(query->children, "password")) {
264	/* We'll have to stick with plaintext. Let's hope we're using SSL/TLS... */
265	xt_add_child(reply, xt_new_node("password", ic->acc->pass, NULL));
266	} else {
267	xt_free_node(reply);
268
269	imcb_error(ic, "Can't find suitable authentication method");
270	imc_logout(ic, FALSE);
271	return XT_ABORT;
272	}
273
274	reply = jabber_make_packet("iq", "set", NULL, reply);
275	jabber_cache_add(ic, reply, jabber_finish_iq_auth);
276	st = jabber_write_packet(ic, reply);
277
278	return st ? XT_HANDLED : XT_ABORT;
279	}
280
281	static xt_status jabber_finish_iq_auth(struct im_connection ic, struct xt_node node, struct xt_node *orig)
282	{
283	struct jabber_data *jd = ic->proto_data;
284	char *type;
285
286	if (!(type = xt_find_attr(node, "type"))) {
287	imcb_log(ic, "Warning: Received incomplete IQ packet while authenticating");
288	imc_logout(ic, FALSE);
289	return XT_HANDLED;
290	}
291
292	if (strcmp(type, "error") == 0) {
293	imcb_error(ic, "Authentication failure");
294	imc_logout(ic, FALSE);
295	return XT_ABORT;
296	} else if (strcmp(type, "result") == 0) {
297	/* This happens when we just successfully authenticated the
298	old (non-SASL) way. */
299	jd->flags \|= JFLAG_AUTHENTICATED;
300	if (!jabber_get_roster(ic)) {
301	return XT_ABORT;
302	}
303	if (!jabber_iq_disco_server(ic)) {
304	return XT_ABORT;
305	}
306	}
307
308	return XT_HANDLED;
309	}
310
311	xt_status jabber_pkt_bind_sess(struct im_connection ic, struct xt_node node, struct xt_node *orig)
312	{
313	struct jabber_data *jd = ic->proto_data;
314	struct xt_node c, reply = NULL;
315	char *s;
316
317	if (node && (c = xt_find_node(node->children, "bind"))) {
318	c = xt_find_node(c->children, "jid");
319	if (!c \|\| !c->text) {
320	/* Server is crap, but this is no disaster. */
321	} else if (jabber_compare_jid(jd->me, c->text) == 0) {
322	s = strchr(c->text, '/');
323	if (s) {
324	*s = '\0';
325	}
326	jabber_set_me(ic, c->text);
327	if (s) {
328	*s = '/';
329	}
330	} else if (c && c->text_len && (s = strchr(c->text, '/')) &&
331	strcmp(s + 1, set_getstr(&ic->acc->set, "resource")) != 0) {
332	imcb_log(ic, "Server changed session resource string to `%s'", s + 1);
333	}
334	}
335
336	if (jd->flags & JFLAG_WANT_BIND) {
337	reply = xt_new_node("bind", NULL, xt_new_node("resource", set_getstr(&ic->acc->set, "resource"), NULL));
338	xt_add_attr(reply, "xmlns", XMLNS_BIND);
339	jd->flags &= ~JFLAG_WANT_BIND;
340	} else if (jd->flags & JFLAG_WANT_SESSION) {
341	reply = xt_new_node("session", NULL, NULL);
342	xt_add_attr(reply, "xmlns", XMLNS_SESSION);
343	jd->flags &= ~JFLAG_WANT_SESSION;
344	}
345
346	if (reply != NULL) {
347	reply = jabber_make_packet("iq", "set", NULL, reply);
348	jabber_cache_add(ic, reply, jabber_pkt_bind_sess);
349
350	if (!jabber_write_packet(ic, reply)) {
351	return XT_ABORT;
352	}
353	if (jd->flags & JFLAG_GMAILNOTIFY && node == NULL) {
354	jabber_iq_query_server(ic, jd->server, XMLNS_DISCO_INFO);
355	}
356	} else if ((jd->flags & (JFLAG_WANT_BIND \| JFLAG_WANT_SESSION)) == 0) {
357	if (!jabber_get_roster(ic)) {
358	return XT_ABORT;
359	}
360	if (!jabber_iq_disco_server(ic)) {
361	return XT_ABORT;
362	}
363	}
364
365	return XT_HANDLED;
366	}
367
368	int jabber_get_roster(struct im_connection *ic)
369	{
370	struct xt_node *node;
371	int st;
372
373	imcb_log(ic, "Authenticated, requesting buddy list");
374
375	node = xt_new_node("query", NULL, NULL);
376	xt_add_attr(node, "xmlns", XMLNS_ROSTER);
377	node = jabber_make_packet("iq", "get", NULL, node);
378
379	jabber_cache_add(ic, node, jabber_parse_roster);
380	st = jabber_write_packet(ic, node);
381
382	return st;
383	}
384
385	xt_status jabber_iq_query_gmail(struct im_connection *ic);
386
387	static xt_status jabber_gmail_handle_new(struct im_connection ic, struct xt_node node)
388	{
389	struct xt_node *response;
390	struct jabber_data *jd = ic->proto_data;
391
392	response = jabber_make_packet("iq", "result", jd->me, NULL);
393
394	jabber_cache_add(ic, response, NULL);
395	if (!jabber_write_packet(ic, response)) {
396	return XT_ABORT;
397	}
398
399	jabber_iq_query_gmail(ic);
400
401	return XT_HANDLED;
402	}
403
404	static xt_status jabber_parse_roster(struct im_connection ic, struct xt_node node, struct xt_node *orig)
405	{
406	struct jabber_data *jd = ic->proto_data;
407	struct xt_node query, c;
408	int initial = (orig != NULL);
409
410	if (!(query = xt_find_node(node->children, "query"))) {
411	imcb_log(ic, "Warning: Received NULL roster packet");
412	return XT_HANDLED;
413	}
414
415	c = query->children;
416	while ((c = xt_find_node(c, "item"))) {
417	struct xt_node *group = xt_find_node(c->children, "group");
418	char *jid = xt_find_attr(c, "jid");
419	char *name = xt_find_attr(c, "name");
420	char *sub = xt_find_attr(c, "subscription");
421	char *mention_name = xt_find_attr(c, "mention_name");
422
423	if (jid && sub) {
424	if ((strcmp(sub, "both") == 0 \|\| strcmp(sub, "to") == 0)) {
425	imcb_add_buddy(ic, jid, (group && group->text_len) ?
426	group->text : NULL);
427
428	if (name) {
429	imcb_rename_buddy(ic, jid, name);
430	}
431
432	/* This could also be used to set the full name as nick for fb/gtalk,
433	* but i'm keeping the old (ugly?) default behavior just to be safe */
434	if (mention_name && (jd->flags & JFLAG_HIPCHAT)) {
435	imcb_buddy_nick_hint(ic, jid, mention_name);
436	}
437	} else if (strcmp(sub, "remove") == 0) {
438	jabber_buddy_remove_bare(ic, jid);
439	imcb_remove_buddy(ic, jid, NULL);
440	}
441	}
442
443	c = c->next;
444	}
445
446	if (initial) {
447	imcb_connected(ic);
448	}
449
450	return XT_HANDLED;
451	}
452
453	int jabber_get_vcard(struct im_connection ic, char bare_jid)
454	{
455	struct xt_node *node;
456
457	if (strchr(bare_jid, '/')) {
458	return 1; /* This was an error, but return 0 should only be done if the connection died... */
459
460	}
461	node = xt_new_node("vCard", NULL, NULL);
462	xt_add_attr(node, "xmlns", XMLNS_VCARD);
463	node = jabber_make_packet("iq", "get", bare_jid, node);
464
465	jabber_cache_add(ic, node, jabber_iq_display_vcard);
466	return jabber_write_packet(ic, node);
467	}
468
469	static xt_status jabber_iq_display_vcard(struct im_connection ic, struct xt_node node, struct xt_node *orig)
470	{
471	struct xt_node vc, c, sc; / subchild, ic is already in use ;-) */
472	GString *reply;
473	char *s;
474
475	if ((s = xt_find_attr(node, "type")) == NULL \|\|
476	strcmp(s, "result") != 0 \|\|
477	(vc = xt_find_node(node->children, "vCard")) == NULL) {
478	s = xt_find_attr(orig, "to"); /* If this returns NULL something's wrong.. */
479	imcb_log(ic, "Could not retrieve vCard of %s", s ? s : "(NULL)");
480	return XT_HANDLED;
481	}
482
483	s = xt_find_attr(orig, "to");
484	reply = g_string_new("vCard information for ");
485	reply = g_string_append(reply, s ? s : "(NULL)");
486	reply = g_string_append(reply, ":\n");
487
488	/* I hate this format, I really do... */
489
490	if ((c = xt_find_node(vc->children, "FN")) && c->text_len) {
491	g_string_append_printf(reply, "Name: %s\n", c->text);
492	}
493
494	if ((c = xt_find_node(vc->children, "N")) && c->children) {
495	reply = g_string_append(reply, "Full name:");
496
497	if ((sc = xt_find_node(c->children, "PREFIX")) && sc->text_len) {
498	g_string_append_printf(reply, " %s", sc->text);
499	}
500	if ((sc = xt_find_node(c->children, "GIVEN")) && sc->text_len) {
501	g_string_append_printf(reply, " %s", sc->text);
502	}
503	if ((sc = xt_find_node(c->children, "MIDDLE")) && sc->text_len) {
504	g_string_append_printf(reply, " %s", sc->text);
505	}
506	if ((sc = xt_find_node(c->children, "FAMILY")) && sc->text_len) {
507	g_string_append_printf(reply, " %s", sc->text);
508	}
509	if ((sc = xt_find_node(c->children, "SUFFIX")) && sc->text_len) {
510	g_string_append_printf(reply, " %s", sc->text);
511	}
512
513	reply = g_string_append_c(reply, '\n');
514	}
515
516	if ((c = xt_find_node(vc->children, "NICKNAME")) && c->text_len) {
517	g_string_append_printf(reply, "Nickname: %s\n", c->text);
518	}
519
520	if ((c = xt_find_node(vc->children, "BDAY")) && c->text_len) {
521	g_string_append_printf(reply, "Date of birth: %s\n", c->text);
522	}
523
524	/* Slightly alternative use of for... ;-) */
525	for (c = vc->children; (c = xt_find_node(c, "EMAIL")); c = c->next) {
526	if ((sc = xt_find_node(c->children, "USERID")) == NULL \|\| sc->text_len == 0) {
527	continue;
528	}
529
530	if (xt_find_node(c->children, "HOME")) {
531	s = "Home";
532	} else if (xt_find_node(c->children, "WORK")) {
533	s = "Work";
534	} else {
535	s = "Misc.";
536	}
537
538	g_string_append_printf(reply, "%s e-mail address: %s\n", s, sc->text);
539	}
540
541	if ((c = xt_find_node(vc->children, "URL")) && c->text_len) {
542	g_string_append_printf(reply, "Homepage: %s\n", c->text);
543	}
544
545	/* Slightly alternative use of for... ;-) */
546	for (c = vc->children; (c = xt_find_node(c, "ADR")); c = c->next) {
547	if (xt_find_node(c->children, "HOME")) {
548	s = "Home";
549	} else if (xt_find_node(c->children, "WORK")) {
550	s = "Work";
551	} else {
552	s = "Misc.";
553	}
554
555	g_string_append_printf(reply, "%s address: ", s);
556
557	if ((sc = xt_find_node(c->children, "STREET")) && sc->text_len) {
558	g_string_append_printf(reply, "%s ", sc->text);
559	}
560	if ((sc = xt_find_node(c->children, "EXTADR")) && sc->text_len) {
561	g_string_append_printf(reply, "%s, ", sc->text);
562	}
563	if ((sc = xt_find_node(c->children, "PCODE")) && sc->text_len) {
564	g_string_append_printf(reply, "%s, ", sc->text);
565	}
566	if ((sc = xt_find_node(c->children, "LOCALITY")) && sc->text_len) {
567	g_string_append_printf(reply, "%s, ", sc->text);
568	}
569	if ((sc = xt_find_node(c->children, "REGION")) && sc->text_len) {
570	g_string_append_printf(reply, "%s, ", sc->text);
571	}
572	if ((sc = xt_find_node(c->children, "CTRY")) && sc->text_len) {
573	g_string_append_printf(reply, "%s", sc->text);
574	}
575
576	if (reply->str[reply->len - 2] == ',') {
577	reply = g_string_truncate(reply, reply->len - 2);
578	}
579
580	reply = g_string_append_c(reply, '\n');
581	}
582
583	for (c = vc->children; (c = xt_find_node(c, "TEL")); c = c->next) {
584	if ((sc = xt_find_node(c->children, "NUMBER")) == NULL \|\| sc->text_len == 0) {
585	continue;
586	}
587
588	if (xt_find_node(c->children, "HOME")) {
589	s = "Home";
590	} else if (xt_find_node(c->children, "WORK")) {
591	s = "Work";
592	} else {
593	s = "Misc.";
594	}
595
596	g_string_append_printf(reply, "%s phone number: %s\n", s, sc->text);
597	}
598
599	if ((c = xt_find_node(vc->children, "DESC")) && c->text_len) {
600	g_string_append_printf(reply, "Other information:\n%s", c->text);
601	}
602
603	/* sigh */
604
605	imcb_log(ic, "%s", reply->str);
606	g_string_free(reply, TRUE);
607
608	return XT_HANDLED;
609	}
610
611	static xt_status jabber_add_to_roster_callback(struct im_connection ic, struct xt_node node, struct xt_node *orig);
612
613	int jabber_add_to_roster(struct im_connection ic, const char handle, const char name, const char group)
614	{
615	struct xt_node *node;
616	int st;
617
618	/* Build the item entry */
619	node = xt_new_node("item", NULL, NULL);
620	xt_add_attr(node, "jid", handle);
621	if (name) {
622	xt_add_attr(node, "name", name);
623	}
624	if (group) {
625	xt_add_child(node, xt_new_node("group", group, NULL));
626	}
627
628	/* And pack it into a roster-add packet */
629	node = xt_new_node("query", NULL, node);
630	xt_add_attr(node, "xmlns", XMLNS_ROSTER);
631	node = jabber_make_packet("iq", "set", NULL, node);
632	jabber_cache_add(ic, node, jabber_add_to_roster_callback);
633
634	st = jabber_write_packet(ic, node);
635
636	return st;
637	}
638
639	static xt_status jabber_add_to_roster_callback(struct im_connection ic, struct xt_node node, struct xt_node *orig)
640	{
641	char s, jid = NULL;
642	struct xt_node *c;
643
644	if ((c = xt_find_node(orig->children, "query")) &&
645	(c = xt_find_node(c->children, "item")) &&
646	(jid = xt_find_attr(c, "jid")) &&
647	(s = xt_find_attr(node, "type")) &&
648	strcmp(s, "result") == 0) {
649	if (bee_user_by_handle(ic->bee, ic, jid) == NULL) {
650	imcb_add_buddy(ic, jid, NULL);
651	}
652	} else {
653	imcb_log(ic, "Error while adding `%s' to your contact list.",
654	jid ? jid : "(unknown handle)");
655	}
656
657	return XT_HANDLED;
658	}
659
660	int jabber_remove_from_roster(struct im_connection ic, char handle)
661	{
662	struct xt_node *node;
663	int st;
664
665	/* Build the item entry */
666	node = xt_new_node("item", NULL, NULL);
667	xt_add_attr(node, "jid", handle);
668	xt_add_attr(node, "subscription", "remove");
669
670	/* And pack it into a roster-add packet */
671	node = xt_new_node("query", NULL, node);
672	xt_add_attr(node, "xmlns", XMLNS_ROSTER);
673	node = jabber_make_packet("iq", "set", NULL, node);
674
675	st = jabber_write_packet(ic, node);
676
677	xt_free_node(node);
678	return st;
679	}
680
681	xt_status jabber_iq_parse_features(struct im_connection ic, struct xt_node node, struct xt_node *orig);
682
683	xt_status jabber_iq_query_features(struct im_connection ic, char bare_jid)
684	{
685	struct xt_node node, query;
686	struct jabber_buddy *bud;
687
688	if ((bud = jabber_buddy_by_jid(ic, bare_jid, 0)) == NULL) {
689	/* Who cares about the unknown... */
690	imcb_log(ic, "Couldn't find buddy: %s", bare_jid);
691	return XT_HANDLED;
692	}
693
694	if (bud->features) { /* been here already */
695	return XT_HANDLED;
696	}
697
698	node = xt_new_node("query", NULL, NULL);
699	xt_add_attr(node, "xmlns", XMLNS_DISCO_INFO);
700
701	if (!(query = jabber_make_packet("iq", "get", bare_jid, node))) {
702	imcb_log(ic, "WARNING: Couldn't generate feature query");
703	xt_free_node(node);
704	return XT_HANDLED;
705	}
706
707	jabber_cache_add(ic, query, jabber_iq_parse_features);
708
709	return jabber_write_packet(ic, query) ? XT_HANDLED : XT_ABORT;
710	}
711
712	xt_status jabber_iq_parse_features(struct im_connection ic, struct xt_node node, struct xt_node *orig)
713	{
714	struct xt_node *c;
715	struct jabber_buddy *bud;
716	char feature, xmlns, *from;
717
718	if (!(from = xt_find_attr(node, "from")) \|\|
719	!(c = xt_find_node(node->children, "query")) \|\|
720	!(xmlns = xt_find_attr(c, "xmlns")) \|\|
721	!(strcmp(xmlns, XMLNS_DISCO_INFO) == 0)) {
722	imcb_log(ic, "WARNING: Received incomplete IQ-result packet for discover");
723	return XT_HANDLED;
724	}
725	if ((bud = jabber_buddy_by_jid(ic, from, 0)) == NULL) {
726	/* Who cares about the unknown... */
727	imcb_log(ic, "Couldn't find buddy: %s", from);
728	return XT_HANDLED;
729	}
730
731	c = c->children;
732	while ((c = xt_find_node(c, "feature"))) {
733	feature = xt_find_attr(c, "var");
734	if (feature) {
735	bud->features = g_slist_append(bud->features, g_strdup(feature));
736	}
737	c = c->next;
738	}
739
740	return XT_HANDLED;
741	}
742
743	xt_status jabber_iq_parse_gmail(struct im_connection ic, struct xt_node node, struct xt_node *orig);
744
745	xt_status jabber_iq_query_gmail(struct im_connection *ic)
746	{
747	struct xt_node node, query;
748	struct jabber_data *jd = ic->proto_data;
749
750	node = xt_new_node("query", NULL, NULL);
751	xt_add_attr(node, "xmlns", XMLNS_GMAILNOTIFY);
752	if (jd->gmail_time) {
753	char *formatted = g_strdup_printf("%" G_GUINT64_FORMAT, (jd->gmail_time + 1));
754	xt_add_attr(node, "newer-than-time", formatted);
755	g_free(formatted);
756	}
757	if (jd->gmail_tid) {
758	xt_add_attr(node, "newer-than-tid", jd->gmail_tid);
759	}
760
761	if (!(query = jabber_make_packet("iq", "get", jd->me, node))) {
762	imcb_log(ic, "WARNING: Couldn't generate server query");
763	xt_free_node(node);
764	}
765
766	jabber_cache_add(ic, query, jabber_iq_parse_gmail);
767
768	return jabber_write_packet(ic, query) ? XT_HANDLED : XT_ABORT;
769	}
770
771	xt_status jabber_iq_parse_server_features(struct im_connection ic, struct xt_node node, struct xt_node *orig);
772
773	xt_status jabber_iq_query_server(struct im_connection ic, char jid, char *xmlns)
774	{
775	struct xt_node node, query;
776	struct jabber_data *jd = ic->proto_data;
777
778	node = xt_new_node("query", NULL, NULL);
779	xt_add_attr(node, "xmlns", xmlns);
780
781	if (!(query = jabber_make_packet("iq", "get", jid, node))) {
782	imcb_log(ic, "WARNING: Couldn't generate server query");
783	xt_free_node(node);
784	}
785
786	jd->have_streamhosts--;
787	jabber_cache_add(ic, query, jabber_iq_parse_server_features);
788
789	return jabber_write_packet(ic, query) ? XT_HANDLED : XT_ABORT;
790	}
791
792	xt_status jabber_iq_parse_gmail(struct im_connection ic, struct xt_node node, struct xt_node *orig)
793	{
794	struct xt_node *c;
795	struct jabber_data *jd = ic->proto_data;
796	char xmlns, from;
797	guint64 l_time = 0;
798	char *tid = NULL;
799	int max = 0;
800
801	if (!(c = xt_find_node(node->children, "mailbox")) \|\|
802	!(from = xt_find_attr(node, "from")) \|\|
803	!(xmlns = xt_find_attr(c, "xmlns")) \|\|
804	(g_strcmp0(xmlns, XMLNS_GMAILNOTIFY) != 0)) {
805	imcb_log(ic, "WARNING: Received incomplete mailbox packet for gmail notify");
806	return XT_HANDLED;
807	}
808
809	max = set_getint(&ic->acc->set, "mail_notifications_limit");
810	c = c->children;
811
812	while ((max-- > 0) && (c = xt_find_node(c, "mail-thread-info"))) {
813	struct xt_node *s;
814	char *subject = "<no subject>";
815	char *sender = "<no sender>";
816	guint64 t_time;
817
818	t_time = g_ascii_strtoull(xt_find_attr(c, "date"), NULL, 10);
819	if (t_time && t_time > l_time) {
820	l_time = t_time;
821	tid = xt_find_attr(c, "tid");
822	}
823
824	if ((s = xt_find_node(c->children, "senders")) &&
825	(s = xt_find_node_by_attr(s->children, "sender", "unread", "1"))) {
826	sender = xt_find_attr(s, "name");
827	}
828
829	if ((s = xt_find_node(c->children, "subject")) && s->text) {
830	subject = s->text;
831	}
832
833	imcb_notify_email(ic, "New mail from %s: %s", sender, subject);
834
835	c = c->next;
836	}
837
838	if (l_time && (!jd->gmail_time \|\| l_time > jd->gmail_time)) {
839	jd->gmail_time = l_time;
840	if (tid) {
841	g_free(jd->gmail_tid);
842	jd->gmail_tid = g_strdup(tid);
843	}
844	}
845
846	return XT_HANDLED;
847	}
848
849	/*
850	* Query the server for "items", query each "item" for identities, query each "item" that's a proxy for it's bytestream info
851	*/
852	xt_status jabber_iq_parse_server_features(struct im_connection ic, struct xt_node node, struct xt_node *orig)
853	{
854	struct xt_node *c;
855	struct jabber_data *jd = ic->proto_data;
856	char xmlns, from;
857
858	if (!(c = xt_find_node(node->children, "query")) \|\|
859	!(from = xt_find_attr(node, "from")) \|\|
860	!(xmlns = xt_find_attr(c, "xmlns"))) {
861	imcb_log(ic, "WARNING: Received incomplete IQ-result packet for discover");
862	return XT_HANDLED;
863	}
864
865	jd->have_streamhosts++;
866
867	if (strcmp(xmlns, XMLNS_DISCO_ITEMS) == 0) {
868	char *itemjid;
869
870	/* answer from server */
871
872	c = c->children;
873	while ((c = xt_find_node(c, "item"))) {
874	itemjid = xt_find_attr(c, "jid");
875
876	if (itemjid) {
877	jabber_iq_query_server(ic, itemjid, XMLNS_DISCO_INFO);
878	}
879
880	c = c->next;
881	}
882	} else if (strcmp(xmlns, XMLNS_DISCO_INFO) == 0) {
883	char category, type;
884
885	/* answer from potential proxy */
886
887	c = c->children;
888	while ((c = xt_find_node(c, "identity"))) {
889	category = xt_find_attr(c, "category");
890	type = xt_find_attr(c, "type");
891
892	if (type && (strcmp(type, "bytestreams") == 0) &&
893	category && (strcmp(category, "proxy") == 0)) {
894	jabber_iq_query_server(ic, from, XMLNS_BYTESTREAMS);
895	}
896
897	c = c->next;
898	}
899
900	if (jd->flags & JFLAG_GMAILNOTIFY) {
901	/* search for gmail notification feature */
902	c = xt_find_node(node->children, "query");
903	c = c->children;
904	while ((c = xt_find_node(c, "feature"))) {
905	if (strcmp(xt_find_attr(c, "var"), XMLNS_GMAILNOTIFY) == 0) {
906	jabber_iq_query_gmail(ic);
907	}
908	c = c->next;
909	}
910	}
911
912	} else if (strcmp(xmlns, XMLNS_BYTESTREAMS) == 0) {
913	char host, jid, *port_s;
914	int port;
915
916	/* answer from proxy */
917
918	if ((c = xt_find_node(c->children, "streamhost")) &&
919	(host = xt_find_attr(c, "host")) &&
920	(port_s = xt_find_attr(c, "port")) &&
921	(sscanf(port_s, "%d", &port) == 1) &&
922	(jid = xt_find_attr(c, "jid"))) {
923	jabber_streamhost_t *sh = g_new0(jabber_streamhost_t, 1);
924
925	sh->jid = g_strdup(jid);
926	sh->host = g_strdup(host);
927	g_snprintf(sh->port, sizeof(sh->port), "%u", port);
928
929	imcb_log(ic, "Proxy found: jid %s host %s port %u", jid, host, port);
930	jd->streamhosts = g_slist_append(jd->streamhosts, sh);
931	}
932	}
933
934	if (jd->have_streamhosts == 0) {
935	jd->have_streamhosts++;
936	}
937
938	return XT_HANDLED;
939	}
940
941	static xt_status jabber_iq_version_response(struct im_connection *ic,
942	struct xt_node node, struct xt_node orig);
943
944	void jabber_iq_version_send(struct im_connection ic, struct jabber_buddy bud, void *data)
945	{
946	struct xt_node node, query;
947
948	node = xt_new_node("query", NULL, NULL);
949	xt_add_attr(node, "xmlns", XMLNS_VERSION);
950	query = jabber_make_packet("iq", "get", bud->full_jid, node);
951	jabber_cache_add(ic, query, jabber_iq_version_response);
952
953	jabber_write_packet(ic, query);
954	}
955
956	static xt_status jabber_iq_version_response(struct im_connection *ic,
957	struct xt_node node, struct xt_node orig)
958	{
959	struct xt_node *query;
960	GString *rets;
961	char *s;
962	char *ret[2] = {};
963	bee_user_t *bu;
964	struct jabber_buddy *bud = NULL;
965
966	if ((s = xt_find_attr(node, "from")) &&
967	(bud = jabber_buddy_by_jid(ic, s, 0)) &&
968	(query = xt_find_node(node->children, "query")) &&
969	(bu = bee_user_by_handle(ic->bee, ic, bud->bare_jid))) {
970	rets = g_string_new("Resource ");
971	g_string_append(rets, bud->resource);
972	} else {
973	return XT_HANDLED;
974	}
975
976	for (query = query->children; query; query = query->next) {
977	if (query->text_len > 0) {
978	g_string_append_printf(rets, " %s: %s,", query->name, query->text);
979	}
980	}
981
982	g_string_truncate(rets, rets->len - 1);
983	ret[0] = rets->str;
984	imcb_buddy_action_response(bu, "VERSION", ret, NULL);
985	g_string_free(rets, TRUE);
986
987	return XT_HANDLED;
988	}
989
990	static xt_status jabber_iq_disco_server_response(struct im_connection *ic,
991	struct xt_node node, struct xt_node orig);
992
993	int jabber_iq_disco_server(struct im_connection *ic)
994	{
995	struct xt_node node, iq;
996	struct jabber_data *jd = ic->proto_data;
997
998	node = xt_new_node("query", NULL, NULL);
999	xt_add_attr(node, "xmlns", XMLNS_DISCO_INFO);
1000	iq = jabber_make_packet("iq", "get", jd->server, node);
1001
1002	jabber_cache_add(ic, iq, jabber_iq_disco_server_response);
1003	return jabber_write_packet(ic, iq);
1004	}
1005
1006	static xt_status jabber_iq_disco_server_response(struct im_connection *ic,
1007	struct xt_node node, struct xt_node orig)
1008	{
1009	struct jabber_data *jd = ic->proto_data;
1010	struct xt_node query, id;
1011
1012	if (!(query = xt_find_node(node->children, "query"))) {
1013	return XT_HANDLED;
1014	}
1015
1016	if (xt_find_node_by_attr(query->children, "feature", "var", XMLNS_CARBONS) &&
1017	set_getbool(&ic->acc->set, "carbons")) {
1018
1019	struct xt_node enable, iq;
1020
1021	enable = xt_new_node("enable", NULL, NULL);
1022	xt_add_attr(enable, "xmlns", XMLNS_CARBONS);
1023	iq = jabber_make_packet("iq", "set", NULL, enable);
1024
1025	jabber_cache_add(ic, iq, jabber_iq_carbons_response);
1026	jabber_write_packet(ic, iq);
1027	}
1028
1029	if ((id = xt_find_node(query->children, "identity"))) {
1030	char cat, type, *name;
1031
1032	if (!(cat = xt_find_attr(id, "category")) \|\|
1033	!(type = xt_find_attr(id, "type")) \|\|
1034	!(name = xt_find_attr(id, "name"))) {
1035	return XT_HANDLED;
1036	}
1037
1038	if (strcmp(cat, "server") == 0 && strcmp(type, "im") == 0 &&
1039	strstr(name, "Google") != NULL) {
1040	jd->flags \|= JFLAG_GTALK;
1041	}
1042	}
1043
1044	return XT_HANDLED;
1045	}
1046
1047	static xt_status jabber_iq_carbons_response(struct im_connection *ic,
1048	struct xt_node node, struct xt_node orig)
1049	{
1050	struct jabber_error *err;
1051
1052	if ((err = jabber_error_parse(xt_find_node(node->children, "error"), XMLNS_STANZA_ERROR))) {
1053	imcb_error(ic, "Error enabling carbons: %s%s%s",
1054	err->code, err->text ? ": " : "", err->text ? err->text : "");
1055	jabber_error_free(err);
1056	} else {
1057	imcb_log(ic, "Carbons enabled");
1058	}
1059
1060	return XT_HANDLED;
1061	}

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source: protocols/jabber/iq.c @ 7616eec

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