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source: protocols/jabber/iq.c @ 1a8875f

Last change on this file since 1a8875f was 2e78f75, checked in by Jelmer Vernooĳ <jelmer@…>, at 2016-05-15T17:16:38Z

Remove the ARCH / CPU defines.

These only reflect on what arch/cpu bitlbee was built, not on which
it is running. This makes the Debian package unreproducible.
See e.g.
https://tests.reproducible-builds.org/rb-pkg/testing/i386/bitlbee.html

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

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