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source: protocols/msn/ns.c @ 75e49de

Last change on this file since 75e49de was 89e0c94, checked in by dequis <dx@…>, at 2015-03-19T10:25:33Z
get_rfc822_header: allow headers at the end of a string
Property mode set to `100644`
File size: 17.0 KB

Line
1	/********************************************************************\
2	* BitlBee -- An IRC to other IM-networks gateway *
3	* *
4	* Copyright 2002-2012 Wilmer van der Gaast and others *
5	\********************************************************************/
6
7	/* MSN module - Notification server callbacks */
8
9	/*
10	This program is free software; you can redistribute it and/or modify
11	it under the terms of the GNU General Public License as published by
12	the Free Software Foundation; either version 2 of the License, or
13	(at your option) any later version.
14
15	This program is distributed in the hope that it will be useful,
16	but WITHOUT ANY WARRANTY; without even the implied warranty of
17	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18	GNU General Public License for more details.
19
20	You should have received a copy of the GNU General Public License with
21	the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
22	if not, write to the Free Software Foundation, Inc., 51 Franklin St.,
23	Fifth Floor, Boston, MA 02110-1301 USA
24	*/
25
26	#include <ctype.h>
27	#include <sys/utsname.h>
28	#include "nogaim.h"
29	#include "msn.h"
30	#include "md5.h"
31	#include "sha1.h"
32	#include "soap.h"
33	#include "xmltree.h"
34
35	static gboolean msn_ns_connected(gpointer data, gint source, b_input_condition cond);
36	static gboolean msn_ns_callback(gpointer data, gint source, b_input_condition cond);
37
38	static void msn_ns_send_adl_start(struct im_connection *ic);
39	static void msn_ns_send_adl(struct im_connection *ic);
40
41	int msn_ns_write(struct im_connection ic, int fd, const char fmt, ...)
42	{
43	struct msn_data *md = ic->proto_data;
44	va_list params;
45	char *out;
46	size_t len;
47	int st;
48
49	va_start(params, fmt);
50	out = g_strdup_vprintf(fmt, params);
51	va_end(params);
52
53	if (fd < 0) {
54	fd = md->fd;
55	}
56
57	if (getenv("BITLBEE_DEBUG")) {
58	fprintf(stderr, "\x1b[91m>>>[NS%d] %s\n\x1b[97m", fd, out);
59	}
60
61	len = strlen(out);
62
63	if (md->is_http) {
64	st = len;
65	msn_gw_write(md->gw, out, len);
66	} else {
67	st = write(fd, out, len);
68	}
69
70	g_free(out);
71	if (st != len) {
72	imcb_error(ic, "Short write() to main server");
73	imc_logout(ic, TRUE);
74	return 0;
75	}
76
77	return 1;
78	}
79
80	gboolean msn_ns_connect(struct im_connection ic, const char host, int port)
81	{
82	struct msn_data *handler = ic->proto_data;
83
84	if (handler->fd >= 0) {
85	closesocket(handler->fd);
86	}
87
88	if (handler->is_http) {
89	handler->gw = msn_gw_new(handler);
90	handler->gw->callback = msn_ns_callback;
91	msn_ns_connected(handler, -1, B_EV_IO_READ);
92	} else {
93	handler->fd = proxy_connect(host, port, msn_ns_connected, handler);
94	if (handler->fd < 0) {
95	imcb_error(ic, "Could not connect to server");
96	imc_logout(ic, TRUE);
97	return FALSE;
98	}
99	}
100
101	return TRUE;
102	}
103
104	static gboolean msn_ns_connected(gpointer data, gint source, b_input_condition cond)
105	{
106	struct msn_data *md = data;
107	struct msn_data *handler = md;
108	struct im_connection *ic = md->ic;
109
110	if (source == -1 && !md->is_http) {
111	imcb_error(ic, "Could not connect to server");
112	imc_logout(ic, TRUE);
113	return FALSE;
114	}
115
116	g_free(handler->rxq);
117	handler->rxlen = 0;
118	handler->rxq = g_new0(char, 1);
119
120	if (md->uuid == NULL) {
121	struct utsname name;
122	sha1_state_t sha[1];
123
124	/* UUID == SHA1("BitlBee" + my hostname + MSN username) */
125	sha1_init(sha);
126	sha1_append(sha, (void *) "BitlBee", 7);
127	if (uname(&name) == 0) {
128	sha1_append(sha, (void *) name.nodename, strlen(name.nodename));
129	}
130	sha1_append(sha, (void *) ic->acc->user, strlen(ic->acc->user));
131	md->uuid = sha1_random_uuid(sha);
132	memcpy(md->uuid, "b171be3e", 8); /* :-P */
133	}
134
135	if (msn_ns_write(ic, source, "VER %d %s CVR0\r\n", ++md->trId, MSNP_VER)) {
136	if (!handler->is_http) {
137	handler->inpa = b_input_add(handler->fd, B_EV_IO_READ, msn_ns_callback, handler);
138	}
139	imcb_log(ic, "Connected to server, waiting for reply");
140	}
141
142	return FALSE;
143	}
144
145	void msn_ns_close(struct msn_data *handler)
146	{
147	if (handler->gw) {
148	if (handler->gw->waiting) {
149	/* mark it as closed, let the request callback clean it */
150	handler->gw->open = FALSE;
151	} else {
152	msn_gw_free(handler->gw);
153	}
154	}
155	if (handler->fd >= 0) {
156	closesocket(handler->fd);
157	b_event_remove(handler->inpa);
158	}
159
160	handler->fd = handler->inpa = -1;
161	g_free(handler->rxq);
162	g_free(handler->cmd_text);
163
164	handler->rxlen = 0;
165	handler->rxq = NULL;
166	handler->cmd_text = NULL;
167	}
168
169	static gboolean msn_ns_callback(gpointer data, gint source, b_input_condition cond)
170	{
171	struct msn_data *handler = data;
172	struct im_connection *ic = handler->ic;
173	char *bytes;
174	int st;
175
176	if (handler->is_http) {
177	st = msn_gw_read(handler->gw, &bytes);
178	} else {
179	bytes = g_malloc(1024);
180	st = read(handler->fd, bytes, 1024);
181	}
182
183	if (st <= 0) {
184	imcb_error(ic, "Error while reading from server");
185	imc_logout(ic, TRUE);
186	return FALSE;
187	}
188
189	msn_queue_feed(handler, bytes, st);
190
191	g_free(bytes);
192
193	/* Ignore ret == 0, it's already disconnected then. */
194	msn_handler(handler);
195
196	return TRUE;
197
198	}
199
200	int msn_ns_command(struct msn_data handler, char *cmd, int num_parts)
201	{
202	struct im_connection *ic = handler->ic;
203	struct msn_data *md = handler;
204
205	if (num_parts == 0) {
206	/* Hrrm... Empty command...? Ignore? */
207	return(1);
208	}
209
210	if (strcmp(cmd[0], "VER") == 0) {
211	if (cmd[2] && strncmp(cmd[2], MSNP_VER, 5) != 0) {
212	imcb_error(ic, "Unsupported protocol");
213	imc_logout(ic, FALSE);
214	return(0);
215	}
216
217	return(msn_ns_write(ic, handler->fd, "CVR %d 0x0409 mac 10.2.0 ppc macmsgs 3.5.1 macmsgs %s VmVyc2lvbjogMQ0KWGZyQ291bnQ6IDINClhmclNlbnRVVENUaW1lOiA2MzU2MTQ3OTU5NzgzOTAwMDANCklzR2VvWGZyOiB0cnVlDQo=\r\n",
218	++md->trId, ic->acc->user));
219	} else if (strcmp(cmd[0], "CVR") == 0) {
220	/* We don't give a damn about the information we just received */
221	return msn_ns_write(ic, handler->fd, "USR %d SSO I %s\r\n", ++md->trId, ic->acc->user);
222	} else if (strcmp(cmd[0], "XFR") == 0) {
223	char *server;
224	int port;
225
226	if (num_parts >= 6 && strcmp(cmd[2], "NS") == 0) {
227	b_event_remove(handler->inpa);
228	handler->inpa = -1;
229
230	server = strchr(cmd[3], ':');
231	if (!server) {
232	imcb_error(ic, "Syntax error");
233	imc_logout(ic, TRUE);
234	return(0);
235	}
236	*server = 0;
237	port = atoi(server + 1);
238	server = cmd[3];
239
240	imcb_log(ic, "Transferring to other server");
241	return msn_ns_connect(ic, server, port);
242	} else {
243	imcb_error(ic, "Syntax error");
244	imc_logout(ic, TRUE);
245	return(0);
246	}
247	} else if (strcmp(cmd[0], "USR") == 0) {
248	if (num_parts >= 6 && strcmp(cmd[2], "SSO") == 0 &&
249	strcmp(cmd[3], "S") == 0) {
250	g_free(md->pp_policy);
251	md->pp_policy = g_strdup(cmd[4]);
252	msn_soap_passport_sso_request(ic, cmd[5]);
253	} else if (strcmp(cmd[2], "OK") == 0) {
254	/* If the number after the handle is 0, the e-mail
255	address is unverified, which means we can't change
256	the display name. */
257	if (cmd[4][0] == '0') {
258	md->flags \|= MSN_EMAIL_UNVERIFIED;
259	}
260
261	imcb_log(ic, "Authenticated, getting buddy list");
262	msn_soap_memlist_request(ic);
263	} else {
264	imcb_error(ic, "Unknown authentication type");
265	imc_logout(ic, FALSE);
266	return(0);
267	}
268	} else if (strcmp(cmd[0], "MSG") == 0) {
269	if (num_parts < 4) {
270	imcb_error(ic, "Syntax error");
271	imc_logout(ic, TRUE);
272	return(0);
273	}
274
275	handler->msglen = atoi(cmd[3]);
276
277	if (handler->msglen <= 0) {
278	imcb_error(ic, "Syntax error");
279	imc_logout(ic, TRUE);
280	return(0);
281	}
282	} else if (strcmp(cmd[0], "ADL") == 0) {
283	if (num_parts >= 3 && strcmp(cmd[2], "OK") == 0) {
284	msn_ns_send_adl(ic);
285	return msn_ns_finish_login(ic);
286	} else if (num_parts >= 3) {
287	handler->msglen = atoi(cmd[2]);
288	}
289	} else if (strcmp(cmd[0], "CHL") == 0) {
290	char *resp;
291	int st;
292
293	if (num_parts < 3) {
294	imcb_error(ic, "Syntax error");
295	imc_logout(ic, TRUE);
296	return(0);
297	}
298
299	resp = msn_p11_challenge(cmd[2]);
300
301	st = msn_ns_write(ic, -1, "QRY %d %s %zd\r\n%s",
302	++md->trId, MSNP11_PROD_ID,
303	strlen(resp), resp);
304	g_free(resp);
305	return st;
306	} else if (strcmp(cmd[0], "QRY") == 0) {
307	/* CONGRATULATIONS */
308	} else if (strcmp(cmd[0], "OUT") == 0) {
309	int allow_reconnect = TRUE;
310
311	if (cmd[1] && strcmp(cmd[1], "OTH") == 0) {
312	imcb_error(ic, "Someone else logged in with your account");
313	allow_reconnect = FALSE;
314	} else if (cmd[1] && strcmp(cmd[1], "SSD") == 0) {
315	imcb_error(ic, "Terminating session because of server shutdown");
316	} else {
317	imcb_error(ic, "Session terminated by remote server (%s)",
318	cmd[1] ? cmd[1] : "reason unknown)");
319	}
320
321	imc_logout(ic, allow_reconnect);
322	return(0);
323	} else if (strcmp(cmd[0], "GCF") == 0) {
324	/* Coming up is cmd[2] bytes of stuff we're supposed to
325	censore. Meh. */
326	handler->msglen = atoi(cmd[2]);
327	} else if ((strcmp(cmd[0], "NFY") == 0) \|\| (strcmp(cmd[0], "SDG") == 0)) {
328	if (num_parts >= 3) {
329	handler->msglen = atoi(cmd[2]);
330	}
331	} else if (strcmp(cmd[0], "PUT") == 0) {
332	if (num_parts >= 4) {
333	handler->msglen = atoi(cmd[3]);
334	}
335	} else if (strcmp(cmd[0], "QNG") == 0) {
336	ic->flags \|= OPT_PONGED;
337	} else if (g_ascii_isdigit(cmd[0][0])) {
338	int num = atoi(cmd[0]);
339	const struct msn_status_code *err = msn_status_by_number(num);
340
341	imcb_error(ic, "Error reported by MSN server: %s", err->text);
342
343	if (err->flags & STATUS_FATAL) {
344	imc_logout(ic, TRUE);
345	return(0);
346	}
347
348	/* Oh yes, errors can have payloads too now. Discard them for now. */
349	if (num_parts >= 3) {
350	handler->msglen = atoi(cmd[2]);
351	}
352	} else {
353	imcb_error(ic, "Received unknown command from main server: %s", cmd[0]);
354	}
355
356	return(1);
357	}
358
359	int msn_ns_message(struct msn_data handler, char msg, int msglen, char **cmd, int num_parts)
360	{
361	struct im_connection *ic = handler->ic;
362	char *body;
363	int blen = 0;
364
365	if (!num_parts) {
366	return(1);
367	}
368
369	if ((body = strstr(msg, "\r\n\r\n"))) {
370	body += 4;
371	blen = msglen - (body - msg);
372	}
373
374	if (strcmp(cmd[0], "MSG") == 0) {
375	if (g_strcasecmp(cmd[1], "Hotmail") == 0) {
376	char *ct = get_rfc822_header(msg, "Content-Type:", msglen);
377
378	if (!ct) {
379	return(1);
380	}
381
382	if (g_strncasecmp(ct, "application/x-msmsgssystemmessage", 33) == 0) {
383	char *mtype;
384	char *arg1;
385
386	if (!body) {
387	return(1);
388	}
389
390	mtype = get_rfc822_header(body, "Type:", blen);
391	arg1 = get_rfc822_header(body, "Arg1:", blen);
392
393	if (mtype && strcmp(mtype, "1") == 0) {
394	if (arg1) {
395	imcb_log(ic, "The server is going down for maintenance in %s minutes.",
396	arg1);
397	}
398	}
399
400	g_free(arg1);
401	g_free(mtype);
402	} else if (g_strncasecmp(ct, "text/x-msmsgsprofile", 20) == 0) {
403	/* We don't care about this profile for now... */
404	} else if (g_strncasecmp(ct, "text/x-msmsgsinitialemailnotification", 37) == 0) {
405	if (set_getbool(&ic->acc->set, "mail_notifications")) {
406	char *inbox = get_rfc822_header(body, "Inbox-Unread:", blen);
407	char *folders = get_rfc822_header(body, "Folders-Unread:", blen);
408
409	if (inbox && folders) {
410	imcb_log(ic,
411	"INBOX contains %s new messages, plus %s messages in other folders.", inbox,
412	folders);
413	}
414
415	g_free(inbox);
416	g_free(folders);
417	}
418	} else if (g_strncasecmp(ct, "text/x-msmsgsemailnotification", 30) == 0) {
419	if (set_getbool(&ic->acc->set, "mail_notifications")) {
420	char *from = get_rfc822_header(body, "From-Addr:", blen);
421	char *fromname = get_rfc822_header(body, "From:", blen);
422
423	if (from && fromname) {
424	imcb_log(ic, "Received an e-mail message from %s <%s>.", fromname,
425	from);
426	}
427
428	g_free(from);
429	g_free(fromname);
430	}
431	} else if (g_strncasecmp(ct, "text/x-msmsgsactivemailnotification", 35) == 0) {
432	/* Notification that a message has been read... Ignore it */
433	} else {
434	debug("Can't handle %s packet from notification server", ct);
435	}
436
437	g_free(ct);
438	}
439	} else if (strcmp(cmd[0], "ADL") == 0) {
440	struct xt_node adl, d, *c;
441
442	if (!(adl = xt_from_string(msg, msglen))) {
443	return 1;
444	}
445
446	for (d = adl->children; d; d = d->next) {
447	char *dn;
448	if (strcmp(d->name, "d") != 0 \|\|
449	(dn = xt_find_attr(d, "n")) == NULL) {
450	continue;
451	}
452	for (c = d->children; c; c = c->next) {
453	bee_user_t *bu;
454	struct msn_buddy_data *bd;
455	char cn, handle, f, l;
456	int flags;
457
458	if (strcmp(c->name, "c") != 0 \|\|
459	(l = xt_find_attr(c, "l")) == NULL \|\|
460	(cn = xt_find_attr(c, "n")) == NULL) {
461	continue;
462	}
463
464	/* FIXME: Use "t" here, guess I should just add it
465	as a prefix like elsewhere in the protocol. */
466	handle = g_strdup_printf("%s@%s", cn, dn);
467	if (!((bu = bee_user_by_handle(ic->bee, ic, handle)) \|\|
468	(bu = bee_user_new(ic->bee, ic, handle, 0)))) {
469	g_free(handle);
470	continue;
471	}
472	g_free(handle);
473	bd = bu->data;
474
475	if ((f = xt_find_attr(c, "f"))) {
476	http_decode(f);
477	imcb_rename_buddy(ic, bu->handle, f);
478	}
479
480	flags = atoi(l) & 15;
481	if (bd->flags != flags) {
482	bd->flags = flags;
483	msn_buddy_ask(bu);
484	}
485	}
486	}
487	} else if (strcmp(cmd[0], "SDG") == 0) {
488	char **parts = g_strsplit(msg, "\r\n\r\n", 4);
489	char *from = NULL;
490	char *mt = NULL;
491	char *who = NULL;
492	char *s = NULL;
493
494	if ((from = get_rfc822_header(parts[0], "From", 0)) &&
495	(mt = get_rfc822_header(parts[2], "Message-Type", 0)) &&
496	(s = strchr(from, ';'))) {
497
498	who = g_strndup(from + 2, s - from - 2);
499
500	if (strcmp(mt, "Control/Typing") == 0) {
501	imcb_buddy_typing(ic, who, OPT_TYPING);
502	} else if (strcmp(mt, "Text") == 0) {
503	imcb_buddy_msg(ic, who, parts[3], 0, 0);
504	}
505	}
506	g_free(from);
507	g_free(mt);
508	g_free(who);
509	return 1;
510	}
511
512	return 1;
513	}
514
515	void msn_auth_got_passport_token(struct im_connection ic, const char token, const char *error)
516	{
517	struct msn_data *md;
518
519	/* Dead connection? */
520	if (g_slist_find(msn_connections, ic) == NULL) {
521	return;
522	}
523
524	md = ic->proto_data;
525
526	if (token) {
527	msn_ns_write(ic, -1, "USR %d SSO S %s %s {%s}\r\n", ++md->trId, md->tokens[0], token, md->uuid);
528	} else {
529	imcb_error(ic, "Error during Passport authentication: %s", error);
530	imc_logout(ic, TRUE);
531	}
532	}
533
534	void msn_auth_got_contact_list(struct im_connection *ic)
535	{
536	/* Dead connection? */
537	if (g_slist_find(msn_connections, ic) == NULL) {
538	return;
539	}
540
541	msn_ns_send_adl_start(ic);
542	msn_ns_finish_login(ic);
543	}
544
545	static gboolean msn_ns_send_adl_1(gpointer key, gpointer value, gpointer data)
546	{
547	struct xt_node adl = data, d, c, s;
548	struct bee_user *bu = value;
549	struct msn_buddy_data *bd = bu->data;
550	struct msn_data *md = bu->ic->proto_data;
551	char handle[strlen(bu->handle) + 1];
552	char *domain;
553	char l[4];
554
555	if ((bd->flags & 7) == 0 \|\| (bd->flags & MSN_BUDDY_ADL_SYNCED)) {
556	return FALSE;
557	}
558
559	strcpy(handle, bu->handle);
560	if ((domain = strchr(handle, '@')) == NULL) { /* WTF */
561	return FALSE;
562	}
563	*domain = '\0';
564	domain++;
565
566	if ((d = adl->children) == NULL \|\|
567	g_strcasecmp(xt_find_attr(d, "n"), domain) != 0) {
568	d = xt_new_node("d", NULL, NULL);
569	xt_add_attr(d, "n", domain);
570	xt_insert_child(adl, d);
571	}
572
573	g_snprintf(l, sizeof(l), "%d", bd->flags & 7);
574	c = xt_new_node("c", NULL, NULL);
575	xt_add_attr(c, "n", handle);
576	xt_add_attr(c, "t", "1"); /* FIXME: Network type, i.e. 32 for Y!MSG */
577	s = xt_new_node("s", NULL, NULL);
578	xt_add_attr(s, "n", "IM");
579	xt_add_attr(s, "l", l);
580	xt_insert_child(c, s);
581	xt_insert_child(d, c);
582
583	/* Do this in batches of 100. */
584	bd->flags \|= MSN_BUDDY_ADL_SYNCED;
585	return (--md->adl_todo % 140) == 0;
586	}
587
588	static void msn_ns_send_adl(struct im_connection *ic)
589	{
590	struct xt_node *adl;
591	struct msn_data *md = ic->proto_data;
592	char *adls;
593
594	adl = xt_new_node("ml", NULL, NULL);
595	xt_add_attr(adl, "l", "1");
596	g_tree_foreach(md->domaintree, msn_ns_send_adl_1, adl);
597	if (adl->children == NULL) {
598	/* This tells the caller that we're done now. */
599	md->adl_todo = -1;
600	xt_free_node(adl);
601	return;
602	}
603
604	adls = xt_to_string(adl);
605	xt_free_node(adl);
606	msn_ns_write(ic, -1, "ADL %d %zd\r\n%s", ++md->trId, strlen(adls), adls);
607	g_free(adls);
608	}
609
610	static void msn_ns_send_adl_start(struct im_connection *ic)
611	{
612	struct msn_data *md;
613	GSList *l;
614
615	/* Dead connection? */
616	if (g_slist_find(msn_connections, ic) == NULL) {
617	return;
618	}
619
620	md = ic->proto_data;
621	md->adl_todo = 0;
622	for (l = ic->bee->users; l; l = l->next) {
623	bee_user_t *bu = l->data;
624	struct msn_buddy_data *bd = bu->data;
625
626	if (bu->ic != ic \|\| (bd->flags & 7) == 0) {
627	continue;
628	}
629
630	bd->flags &= ~MSN_BUDDY_ADL_SYNCED;
631	md->adl_todo++;
632	}
633
634	msn_ns_send_adl(ic);
635	}
636
637	int msn_ns_finish_login(struct im_connection *ic)
638	{
639	struct msn_data *md = ic->proto_data;
640
641	if (ic->flags & OPT_LOGGED_IN) {
642	return 1;
643	}
644
645	if (md->adl_todo < 0) {
646	md->flags \|= MSN_DONE_ADL;
647	}
648
649	if ((md->flags & MSN_DONE_ADL) && (md->flags & MSN_GOT_PROFILE)) {
650	imcb_connected(ic);
651	}
652
653	return 1;
654	}
655
656	// TODO: typing notifications, nudges lol, etc
657	int msn_ns_sendmessage(struct im_connection ic, bee_user_t bu, const char *text)
658	{
659	struct msn_data *md = ic->proto_data;
660	int retval = 0;
661	char *buf;
662
663	if (strncmp(text, "\r\r\r", 3) == 0) {
664	/* Err. Shouldn't happen but I guess it can. Don't send others
665	any of the "SHAKE THAT THING" messages. :-D */
666	return 1;
667	}
668
669	buf = g_strdup_printf(MSN_MESSAGE_HEADERS, bu->handle, ic->acc->user, md->uuid, strlen(text), text);
670	retval = msn_ns_write(ic, -1, "SDG %d %zd\r\n%s", ++md->trId, strlen(buf), buf);
671	g_free(buf);
672	return retval;
673	}

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