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1 | /* | |
2 | * aim_im.c | |
3 | * | |
4 | * The routines for sending/receiving Instant Messages. | |
5 | * | |
6 | */ | |
7 | ||
8 | #include <faim/aim.h> | |
9 | ||
10 | /* | |
11 | * Send an ICBM (instant message). | |
12 | * | |
13 | * | |
14 | * Possible flags: | |
15 | * AIM_IMFLAGS_AWAY -- Marks the message as an autoresponse | |
16 | * AIM_IMFLAGS_ACK -- Requests that the server send an ack | |
17 | * when the message is received (of type 0x0004/0x000c) | |
18 | * | |
19 | */ | |
20 | faim_export unsigned long aim_send_im(struct aim_session_t *sess, | |
21 | struct aim_conn_t *conn, | |
22 | char *destsn, u_int flags, char *msg) | |
23 | { | |
24 | ||
25 | int curbyte,i; | |
26 | struct command_tx_struct *newpacket; | |
27 | ||
28 | if (strlen(msg) >= MAXMSGLEN) | |
29 | return -1; | |
30 | ||
31 | if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, strlen(msg)+256))) | |
32 | return -1; | |
33 | ||
34 | newpacket->lock = 1; /* lock struct */ | |
35 | ||
36 | curbyte = 0; | |
37 | curbyte += aim_putsnac(newpacket->data+curbyte, | |
38 | 0x0004, 0x0006, 0x0000, sess->snac_nextid); | |
39 | ||
40 | /* | |
41 | * Generate a random message cookie | |
42 | * | |
43 | * We could cache these like we do SNAC IDs. (In fact, it | |
44 | * might be a good idea.) In the message error functions, | |
45 | * the 8byte message cookie is returned as well as the | |
46 | * SNAC ID. | |
47 | * | |
48 | */ | |
49 | for (i=0;i<8;i++) | |
50 | curbyte += aimutil_put8(newpacket->data+curbyte, (u_char) rand()); | |
51 | ||
52 | /* | |
53 | * Channel ID | |
54 | */ | |
55 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0001); | |
56 | ||
57 | /* | |
58 | * Destination SN (prepended with byte length) | |
59 | */ | |
60 | curbyte += aimutil_put8(newpacket->data+curbyte,strlen(destsn)); | |
61 | curbyte += aimutil_putstr(newpacket->data+curbyte, destsn, strlen(destsn)); | |
62 | ||
63 | /* | |
64 | * metaTLV start. | |
65 | */ | |
66 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); | |
67 | curbyte += aimutil_put16(newpacket->data+curbyte, strlen(msg) + 0x10); | |
68 | ||
69 | /* | |
70 | * Flag data / ICBM Parameters? | |
71 | */ | |
72 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x05); | |
73 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
74 | ||
75 | /* number of bytes to follow */ | |
76 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0004); | |
77 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
78 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
79 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
80 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x02); | |
81 | ||
82 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0101); | |
83 | ||
84 | /* | |
85 | * Message block length. | |
86 | */ | |
87 | curbyte += aimutil_put16(newpacket->data+curbyte, strlen(msg) + 0x04); | |
88 | ||
89 | /* | |
90 | * Character set data? | |
91 | */ | |
92 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); | |
93 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); | |
94 | ||
95 | /* | |
96 | * Message. Not terminated. | |
97 | */ | |
98 | curbyte += aimutil_putstr(newpacket->data+curbyte,msg, strlen(msg)); | |
99 | ||
100 | /* | |
101 | * Set the Request Acknowledge flag. | |
102 | */ | |
103 | if (flags & AIM_IMFLAGS_ACK) { | |
104 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0003); | |
105 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0000); | |
106 | } | |
107 | ||
108 | /* | |
109 | * Set the Autoresponse flag. | |
110 | */ | |
111 | if (flags & AIM_IMFLAGS_AWAY) { | |
112 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0004); | |
113 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0000); | |
114 | } | |
115 | ||
116 | newpacket->commandlen = curbyte; | |
117 | newpacket->lock = 0; | |
118 | ||
119 | aim_tx_enqueue(sess, newpacket); | |
120 | ||
121 | aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, destsn, strlen(destsn)+1); | |
122 | aim_cleansnacs(sess, 60); /* clean out all SNACs over 60sec old */ | |
123 | ||
124 | return sess->snac_nextid; | |
125 | } | |
126 | ||
127 | faim_internal int aim_parse_outgoing_im_middle(struct aim_session_t *sess, | |
128 | struct command_rx_struct *command) | |
129 | { | |
130 | unsigned int i = 0, z; | |
131 | rxcallback_t userfunc = NULL; | |
132 | unsigned char cookie[8]; | |
133 | int channel; | |
134 | struct aim_tlvlist_t *tlvlist; | |
135 | char sn[MAXSNLEN]; | |
136 | unsigned short icbmflags = 0; | |
137 | unsigned char flag1 = 0, flag2 = 0; | |
138 | unsigned char *msgblock = NULL, *msg = NULL; | |
139 | ||
140 | i = 10; | |
141 | ||
142 | /* ICBM Cookie. */ | |
143 | for (z=0; z<8; z++,i++) | |
144 | cookie[z] = command->data[i]; | |
145 | ||
146 | /* Channel ID */ | |
147 | channel = aimutil_get16(command->data+i); | |
148 | i += 2; | |
149 | ||
150 | if (channel != 0x01) { | |
151 | printf("faim: icbm: ICBM recieved on unsupported channel. Ignoring. (chan = %04x)\n", channel); | |
152 | return 1; | |
153 | } | |
154 | ||
155 | strncpy(sn, (char *) command->data+i+1, (int) *(command->data+i)); | |
156 | i += 1 + (int) *(command->data+i); | |
157 | ||
158 | tlvlist = aim_readtlvchain(command->data+i, command->commandlen-i); | |
159 | ||
160 | if (aim_gettlv(tlvlist, 0x0003, 1)) | |
161 | icbmflags |= AIM_IMFLAGS_ACK; | |
162 | if (aim_gettlv(tlvlist, 0x0004, 1)) | |
163 | icbmflags |= AIM_IMFLAGS_AWAY; | |
164 | ||
165 | if (aim_gettlv(tlvlist, 0x0002, 1)) { | |
166 | int j = 0; | |
167 | ||
168 | msgblock = (unsigned char *)aim_gettlv_str(tlvlist, 0x0002, 1); | |
169 | ||
170 | /* no, this really is correct. I'm not high or anything either. */ | |
171 | j += 2; | |
172 | j += 2 + aimutil_get16(msgblock+j); | |
173 | j += 2; | |
174 | ||
175 | j += 2; /* final block length */ | |
176 | ||
177 | flag1 = aimutil_get16(msgblock); | |
178 | j += 2; | |
179 | flag2 = aimutil_get16(msgblock); | |
180 | j += 2; | |
181 | ||
182 | msg = msgblock+j; | |
183 | } | |
184 | ||
185 | if ((userfunc = aim_callhandler(command->conn, 0x0004, 0x0006)) || (i = 0)) | |
186 | i = userfunc(sess, command, channel, sn, msg, icbmflags, flag1, flag2); | |
187 | ||
188 | if (msgblock) | |
189 | free(msgblock); | |
190 | aim_freetlvchain(&tlvlist); | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
195 | /* | |
196 | * It can easily be said that parsing ICBMs is THE single | |
197 | * most difficult thing to do in the in AIM protocol. In | |
198 | * fact, I think I just did say that. | |
199 | * | |
200 | * Below is the best damned solution I've come up with | |
201 | * over the past sixteen months of battling with it. This | |
202 | * can parse both away and normal messages from every client | |
203 | * I have access to. Its not fast, its not clean. But it works. | |
204 | * | |
205 | * We should also support at least minimal parsing of | |
206 | * Channel 2, so that we can at least know the name of the | |
207 | * room we're invited to, but obviously can't attend... | |
208 | * | |
209 | */ | |
210 | faim_internal int aim_parse_incoming_im_middle(struct aim_session_t *sess, | |
211 | struct command_rx_struct *command) | |
212 | { | |
213 | u_int i = 0,z; | |
214 | rxcallback_t userfunc = NULL; | |
215 | u_char cookie[8]; | |
216 | int channel; | |
217 | struct aim_tlvlist_t *tlvlist; | |
218 | struct aim_userinfo_s userinfo; | |
219 | u_short wastebits; | |
220 | ||
221 | memset(&userinfo, 0x00, sizeof(struct aim_userinfo_s)); | |
222 | ||
223 | i = 10; /* Skip SNAC header */ | |
224 | ||
225 | /* | |
226 | * Read ICBM Cookie. And throw away. | |
227 | */ | |
228 | for (z=0; z<8; z++,i++) | |
229 | cookie[z] = command->data[i]; | |
230 | ||
231 | /* | |
232 | * Channel ID. | |
233 | * | |
234 | * Channel 0x0001 is the message channel. There are | |
235 | * other channels for things called "rendevous" | |
236 | * which represent chat and some of the other new | |
237 | * features of AIM2/3/3.5. | |
238 | * | |
239 | * Channel 0x0002 is the Rendevous channel, which | |
240 | * is where Chat Invitiations and various client-client | |
241 | * connection negotiations come from. | |
242 | * | |
243 | */ | |
244 | channel = aimutil_get16(command->data+i); | |
245 | i += 2; | |
246 | ||
247 | /* | |
248 | * | |
249 | */ | |
250 | if ((channel != 0x01) && (channel != 0x02)) | |
251 | { | |
252 | printf("faim: icbm: ICBM received on an unsupported channel. Ignoring.\n (chan = %04x)", channel); | |
253 | return 1; | |
254 | } | |
255 | ||
256 | /* | |
257 | * Extract the standard user info block. | |
258 | * | |
259 | * Note that although this contains TLVs that appear contiguous | |
260 | * with the TLVs read below, they are two different pieces. The | |
261 | * userinfo block contains the number of TLVs that contain user | |
262 | * information, the rest are not even though there is no seperation. | |
263 | * aim_extractuserinfo() returns the number of bytes used by the | |
264 | * userinfo tlvs, so you can start reading the rest of them right | |
265 | * afterward. | |
266 | * | |
267 | * That also means that TLV types can be duplicated between the | |
268 | * userinfo block and the rest of the message, however there should | |
269 | * never be two TLVs of the same type in one block. | |
270 | * | |
271 | */ | |
272 | i += aim_extractuserinfo(command->data+i, &userinfo); | |
273 | ||
274 | /* | |
275 | * Read block of TLVs (not including the userinfo data). All | |
276 | * further data is derived from what is parsed here. | |
277 | */ | |
278 | tlvlist = aim_readtlvchain(command->data+i, command->commandlen-i); | |
279 | ||
280 | /* | |
281 | * From here on, its depends on what channel we're on. | |
282 | */ | |
283 | if (channel == 1) | |
284 | { | |
285 | u_int j = 0, y = 0, z = 0; | |
286 | char *msg = NULL; | |
287 | u_int icbmflags = 0; | |
288 | struct aim_tlv_t *msgblocktlv; | |
289 | u_char *msgblock; | |
290 | u_short flag1,flag2; | |
291 | ||
292 | /* | |
293 | * Check Autoresponse status. If it is an autoresponse, | |
294 | * it will contain a type 0x0004 TLV, with zero length. | |
295 | */ | |
296 | if (aim_gettlv(tlvlist, 0x0004, 1)) | |
297 | icbmflags |= AIM_IMFLAGS_AWAY; | |
298 | ||
299 | /* | |
300 | * Check Ack Request status. | |
301 | */ | |
302 | if (aim_gettlv(tlvlist, 0x0003, 1)) | |
303 | icbmflags |= AIM_IMFLAGS_ACK; | |
304 | ||
305 | /* | |
306 | * Message block. | |
307 | */ | |
308 | msgblocktlv = aim_gettlv(tlvlist, 0x0002, 1); | |
309 | if (!msgblocktlv || !msgblocktlv->value) { | |
310 | printf("faim: icbm: major error! no message block TLV found!\n"); | |
311 | aim_freetlvchain(&tlvlist); | |
312 | return 1; | |
313 | } | |
314 | ||
315 | /* | |
316 | * Extracting the message from the unknown cruft. | |
317 | * | |
318 | * This is a bit messy, and I'm not really qualified, | |
319 | * even as the author, to comment on it. At least | |
320 | * its not as bad as a while loop shooting into infinity. | |
321 | * | |
322 | * "Do you believe in magic?" | |
323 | * | |
324 | */ | |
325 | msgblock = msgblocktlv->value; | |
326 | j = 0; | |
327 | ||
328 | wastebits = aimutil_get8(msgblock+j++); | |
329 | wastebits = aimutil_get8(msgblock+j++); | |
330 | ||
331 | y = aimutil_get16(msgblock+j); | |
332 | j += 2; | |
333 | for (z = 0; z < y; z++) | |
334 | wastebits = aimutil_get8(msgblock+j++); | |
335 | wastebits = aimutil_get8(msgblock+j++); | |
336 | wastebits = aimutil_get8(msgblock+j++); | |
337 | ||
338 | /* | |
339 | * Message string length, including flag words. | |
340 | */ | |
341 | i = aimutil_get16(msgblock+j); | |
342 | j += 2; | |
343 | ||
344 | /* | |
345 | * Flag words. | |
346 | * | |
347 | * Its rumored that these can kick in some funky | |
348 | * 16bit-wide char stuff that used to really kill | |
349 | * libfaim. Hopefully the latter is no longer true. | |
350 | * | |
351 | * Though someone should investiagte the former. | |
352 | * | |
353 | */ | |
354 | flag1 = aimutil_get16(msgblock+j); | |
355 | j += 2; | |
356 | flag2 = aimutil_get16(msgblock+j); | |
357 | j += 2; | |
358 | ||
359 | if (flag1 || flag2) | |
360 | printf("faim: icbm: **warning: encoding flags are being used! {%04x, %04x}\n", flag1, flag2); | |
361 | ||
362 | /* | |
363 | * Message string. | |
364 | */ | |
365 | i -= 4; | |
366 | msg = (char *)malloc(i+1); | |
367 | memcpy(msg, msgblock+j, i); | |
368 | msg[i] = '\0'; | |
369 | ||
370 | /* | |
371 | * Call client. | |
372 | */ | |
373 | userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); | |
374 | if (userfunc) | |
375 | i = userfunc(sess, command, channel, &userinfo, msg, icbmflags, flag1, flag2); | |
376 | else | |
377 | i = 0; | |
378 | ||
379 | free(msg); | |
380 | } | |
381 | else if (channel == 0x0002) | |
382 | { | |
383 | struct aim_tlv_t *block1; | |
384 | struct aim_tlvlist_t *list2; | |
385 | unsigned short reqclass = 0; | |
386 | unsigned short status = 0; | |
387 | ||
388 | /* | |
389 | * There's another block of TLVs embedded in the type 5 here. | |
390 | */ | |
391 | block1 = aim_gettlv(tlvlist, 0x0005, 1); | |
392 | if (!block1) { | |
393 | printf("faim: no tlv 0x0005 in rendezvous transaction!\n"); | |
394 | aim_freetlvchain(&tlvlist); | |
395 | return 1; /* major problem */ | |
396 | } | |
397 | ||
398 | /* | |
399 | * First two bytes represent the status of the connection. | |
400 | * | |
401 | * 0 is a request, 2 is an accept | |
402 | */ | |
403 | status = aimutil_get16(block1->value+0); | |
404 | ||
405 | /* | |
406 | * Next comes the cookie. Should match the ICBM cookie. | |
407 | */ | |
408 | if (memcmp(block1->value+2, cookie, 8) != 0) | |
409 | printf("faim: rend: warning cookies don't match!\n"); | |
410 | ||
411 | /* | |
412 | * The next 16bytes are a capability block so we can | |
413 | * identify what type of rendezvous this is. | |
414 | * | |
415 | * Thanks to Eric Warmenhoven <warmenhoven@linux.com> (of GAIM) | |
416 | * for pointing some of this out to me. In fact, a lot of | |
417 | * the client-to-client info comes from the work of the GAIM | |
418 | * developers. Thanks! | |
419 | * | |
420 | * Read off one capability string and we should have it ID'd. | |
421 | * | |
422 | */ | |
423 | reqclass = aim_getcap(block1->value+2+8, 0x10); | |
424 | if (reqclass == 0x0000) { | |
425 | printf("faim: rend: no ID block\n"); | |
426 | aim_freetlvchain(&tlvlist); | |
427 | return 1; | |
428 | } | |
429 | ||
430 | /* | |
431 | * What follows may be TLVs or nothing, depending on the | |
432 | * purpose of the message. | |
433 | * | |
434 | * Ack packets for instance have nothing more to them. | |
435 | */ | |
436 | list2 = aim_readtlvchain(block1->value+2+8+16, block1->length-2-8-16); | |
437 | ||
438 | if (!list2 || ((reqclass != AIM_CAPS_IMIMAGE) && !(aim_gettlv(list2, 0x2711, 1)))) { | |
439 | struct aim_msgcookie_t *cook; | |
440 | int type; | |
441 | ||
442 | type = aim_msgcookie_gettype(reqclass); /* XXX: fix this shitty code */ | |
443 | ||
444 | if ((cook = aim_uncachecookie(sess, cookie, type)) == NULL) { | |
445 | printf("faim: non-data rendezvous thats not in cache!\n"); | |
446 | aim_freetlvchain(&list2); | |
447 | aim_freetlvchain(&tlvlist); | |
448 | return 1; | |
449 | } | |
450 | ||
451 | if (cook->type == AIM_CAPS_SENDFILE) { | |
452 | struct aim_filetransfer_priv *ft; | |
453 | ||
454 | if (cook->data) { | |
455 | int errorcode = -1; /* XXX shouldnt this be 0? */ | |
456 | ||
457 | ft = (struct aim_filetransfer_priv *)cook->data; | |
458 | ||
459 | if (aim_gettlv(list2, 0x000b, 1)) | |
460 | errorcode = aim_gettlv16(list2, 0x000b, 1); | |
461 | ||
462 | if (errorcode) { | |
463 | printf("faim: transfer from %s (%s) for %s cancelled (error code %d)\n", ft->sn, ft->ip, ft->fh.name, errorcode); | |
464 | } else if (status == 0x0002) { /* connection accepted */ | |
465 | printf("faim: transfer from %s (%s) for %s accepted\n", ft->sn, ft->ip, ft->fh.name); | |
466 | } | |
467 | free(cook->data); | |
468 | } else { | |
469 | printf("faim: not data attached to file transfer\n"); | |
470 | } | |
471 | } else if (cook->type == AIM_CAPS_VOICE) { | |
472 | printf("faim: voice request cancelled\n"); | |
473 | } else { | |
474 | printf("faim: unknown cookie cache type %d\n", cook->type); | |
475 | } | |
476 | ||
477 | free(cook); | |
478 | if (list2) | |
479 | aim_freetlvchain(&list2); | |
480 | aim_freetlvchain(&tlvlist); | |
481 | return 1; | |
482 | } | |
483 | ||
484 | /* | |
485 | * The rest of the handling depends on what type it is. | |
486 | */ | |
487 | if (reqclass & AIM_CAPS_BUDDYICON) { | |
488 | ||
489 | /* | |
490 | * Call client. | |
491 | */ | |
492 | #if 0 | |
493 | userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); | |
494 | if (userfunc || (i = 0)) | |
495 | i = userfunc(sess, | |
496 | command, | |
497 | channel, | |
498 | reqclass, | |
499 | &userinfo, | |
500 | ip, | |
501 | cookie); | |
502 | #endif | |
503 | ||
504 | } else if (reqclass & AIM_CAPS_VOICE) { | |
505 | struct aim_msgcookie_t *cachedcook; | |
506 | ||
507 | printf("faim: rend: voice!\n"); | |
508 | ||
509 | if(!(cachedcook = (struct aim_msgcookie_t*)calloc(1, sizeof(struct aim_msgcookie_t)))) | |
510 | return 1; | |
511 | ||
512 | memcpy(cachedcook->cookie, cookie, 8); | |
513 | cachedcook->type = AIM_COOKIETYPE_OFTVOICE; | |
514 | cachedcook->data = NULL; | |
515 | ||
516 | if (aim_cachecookie(sess, cachedcook) != 0) | |
517 | printf("faim: ERROR caching message cookie\n"); | |
518 | ||
519 | /* XXX: implement all this */ | |
520 | ||
521 | /* | |
522 | * Call client. | |
523 | */ | |
524 | userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); | |
525 | if (userfunc || (i = 0)) { | |
526 | i = userfunc(sess, command, channel, reqclass, &userinfo); | |
527 | } | |
528 | } else if ((reqclass & AIM_CAPS_IMIMAGE) || (reqclass & AIM_CAPS_BUDDYICON)) { | |
529 | char ip[30]; | |
530 | struct aim_directim_priv *priv; | |
531 | ||
532 | memset(ip, 0, 30); | |
533 | ||
534 | if (aim_gettlv(list2, 0x0003, 1) && aim_gettlv(list2, 0x0005, 1)) { | |
535 | struct aim_tlv_t *iptlv, *porttlv; | |
536 | ||
537 | iptlv = aim_gettlv(list2, 0x0003, 1); | |
538 | porttlv = aim_gettlv(list2, 0x0005, 1); | |
539 | ||
540 | snprintf(ip, 30, "%d.%d.%d.%d:%d", | |
541 | aimutil_get8(iptlv->value+0), | |
542 | aimutil_get8(iptlv->value+1), | |
543 | aimutil_get8(iptlv->value+2), | |
544 | aimutil_get8(iptlv->value+3), | |
545 | 4443 /*aimutil_get16(porttlv->value)*/); | |
546 | } | |
547 | ||
548 | printf("faim: rend: directIM request from %s (%s)\n", | |
549 | userinfo.sn, | |
550 | ip); | |
551 | ||
552 | /* XXX: there are a couple of different request packets for | |
553 | * different things */ | |
554 | ||
555 | priv = (struct aim_directim_priv *)calloc(1, sizeof(struct aim_directim_priv)); | |
556 | memcpy(priv->ip, ip, sizeof(priv->ip)); | |
557 | memcpy(priv->sn, userinfo.sn, sizeof(priv->sn)); | |
558 | memcpy(priv->cookie, cookie, sizeof(priv->cookie)); | |
559 | ||
560 | /* | |
561 | * Call client. | |
562 | */ | |
563 | userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); | |
564 | if (userfunc || (i = 0)) | |
565 | i = userfunc(sess, | |
566 | command, | |
567 | channel, | |
568 | reqclass, | |
569 | &userinfo, priv); | |
570 | ||
571 | } else if (reqclass & AIM_CAPS_CHAT) { | |
572 | struct aim_tlv_t *miscinfo; | |
573 | struct aim_chat_roominfo roominfo; | |
574 | char *msg=NULL,*encoding=NULL,*lang=NULL; | |
575 | ||
576 | miscinfo = aim_gettlv(list2, 0x2711, 1); | |
577 | aim_chat_readroominfo(miscinfo->value, &roominfo); | |
578 | ||
579 | if (aim_gettlv(list2, 0x000c, 1)) | |
580 | msg = aim_gettlv_str(list2, 0x000c, 1); | |
581 | ||
582 | if (aim_gettlv(list2, 0x000d, 1)) | |
583 | encoding = aim_gettlv_str(list2, 0x000d, 1); | |
584 | ||
585 | if (aim_gettlv(list2, 0x000e, 1)) | |
586 | lang = aim_gettlv_str(list2, 0x000e, 1); | |
587 | ||
588 | /* | |
589 | * Call client. | |
590 | */ | |
591 | userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); | |
592 | if (userfunc || (i = 0)) | |
593 | i = userfunc(sess, | |
594 | command, | |
595 | channel, | |
596 | reqclass, | |
597 | &userinfo, | |
598 | &roominfo, | |
599 | msg, | |
600 | encoding?encoding+1:NULL, | |
601 | lang?lang+1:NULL); | |
602 | free(roominfo.name); | |
603 | free(msg); | |
604 | free(encoding); | |
605 | free(lang); | |
606 | } else if (reqclass & AIM_CAPS_GETFILE) { | |
607 | char ip[30]; | |
608 | struct aim_msgcookie_t *cachedcook; | |
609 | struct aim_tlv_t *miscinfo; | |
610 | ||
611 | if (!(cachedcook = calloc(1, sizeof(struct aim_msgcookie_t)))) | |
612 | return 0; | |
613 | ||
614 | memset(ip, 0, 30); | |
615 | ||
616 | if (!(miscinfo = aim_gettlv(list2, 0x2711, 1))) { | |
617 | free(cachedcook); | |
618 | return 0; | |
619 | } | |
620 | ||
621 | if (aim_gettlv(list2, 0x0003, 1) && aim_gettlv(list2, 0x0005, 1)) { | |
622 | struct aim_tlv_t *iptlv, *porttlv; | |
623 | ||
624 | if (!(iptlv = aim_gettlv(list2, 0x0003, 1)) || !(porttlv = aim_gettlv(list2, 0x0005, 1))) { | |
625 | free(cachedcook); | |
626 | return 0; | |
627 | } | |
628 | ||
629 | snprintf(ip, 30, "%d.%d.%d.%d:%d", | |
630 | aimutil_get8(iptlv->value+0), | |
631 | aimutil_get8(iptlv->value+1), | |
632 | aimutil_get8(iptlv->value+2), | |
633 | aimutil_get8(iptlv->value+3), | |
634 | aimutil_get16(porttlv->value)); | |
635 | } | |
636 | ||
637 | printf("faim: rend: file get request from %s (%s)\n", userinfo.sn, ip); | |
638 | ||
639 | /* | |
640 | * Call client. | |
641 | */ | |
642 | userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); | |
643 | if (userfunc || (i = 0)) | |
644 | i = userfunc(sess, | |
645 | command, | |
646 | channel, | |
647 | reqclass, | |
648 | &userinfo, | |
649 | ip, | |
650 | cookie); | |
651 | ||
652 | } else if (reqclass & AIM_CAPS_SENDFILE) { | |
653 | #if 0 | |
654 | char ip[30]; | |
655 | char *desc = NULL; | |
656 | struct aim_msgcookie_t *cachedcook; | |
657 | struct aim_filetransfer_priv *ft; | |
658 | struct aim_tlv_t *miscinfo; | |
659 | ||
660 | memset(ip, 0, sizeof(ip)); | |
661 | ||
662 | if (!(miscinfo = aim_gettlv(list2, 0x2711, 1))) | |
663 | return 0; | |
664 | ||
665 | if (aim_gettlv(list2, 0x0003, 1) && aim_gettlv(list2, 0x0003, 1)) { | |
666 | struct aim_tlv_t *iptlv, *porttlv; | |
667 | ||
668 | iptlv = aim_gettlv(list2, 0x0003, 1); | |
669 | porttlv = aim_gettlv(list2, 0x0005, 1); | |
670 | ||
671 | snprintf(ip, sizeof(ip)-1, "%d.%d.%d.%d:%d", | |
672 | aimutil_get8(iptlv->value+0), | |
673 | aimutil_get8(iptlv->value+1), | |
674 | aimutil_get8(iptlv->value+2), | |
675 | aimutil_get8(iptlv->value+3), | |
676 | aimutil_get16(porttlv->value)); | |
677 | } | |
678 | ||
679 | if (aim_gettlv(list2, 0x000c, 1)) { | |
680 | desc = aim_gettlv_str(list2, 0x000c, 1); | |
681 | } | |
682 | ||
683 | printf("faim: rend: file transfer request from %s for %s: %s (%s)\n", | |
684 | userinfo.sn, | |
685 | miscinfo->value+8, | |
686 | desc, | |
687 | ip); | |
688 | ||
689 | memcpy(cachedcook->cookie, cookie, 8); | |
690 | ||
691 | ft = malloc(sizeof(struct aim_filetransfer_priv)); | |
692 | strncpy(ft->sn, userinfo.sn, sizeof(ft->sn)); | |
693 | strncpy(ft->ip, ip, sizeof(ft->ip)); | |
694 | strncpy(ft->fh.name, miscinfo->value+8, sizeof(ft->fh.name)); | |
695 | cachedcook->type = AIM_COOKIETYPE_OFTSEND; | |
696 | cachedcook->data = ft; | |
697 | ||
698 | if (aim_cachecookie(sess, cachedcook) != 0) | |
699 | printf("faim: ERROR caching message cookie\n"); | |
700 | ||
701 | ||
702 | aim_accepttransfer(sess, command->conn, ft->sn, cookie, AIM_CAPS_SENDFILE); | |
703 | ||
704 | if (desc) | |
705 | free(desc); | |
706 | #endif | |
707 | /* | |
708 | * Call client. | |
709 | */ | |
710 | userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); | |
711 | if (userfunc || (i = 0)) | |
712 | i = userfunc(sess, | |
713 | command, | |
714 | channel, | |
715 | reqclass, | |
716 | &userinfo); | |
717 | } else { | |
718 | printf("faim: rend: unknown rendezvous 0x%04x\n", reqclass); | |
719 | } | |
720 | ||
721 | aim_freetlvchain(&list2); | |
722 | } | |
723 | ||
724 | /* | |
725 | * Free up the TLV chain. | |
726 | */ | |
727 | aim_freetlvchain(&tlvlist); | |
728 | ||
729 | ||
730 | return i; | |
731 | } | |
732 | ||
733 | /* | |
734 | * Possible codes: | |
735 | * AIM_TRANSFER_DENY_NOTSUPPORTED -- "client does not support" | |
736 | * AIM_TRANSFER_DENY_DECLINE -- "client has declined transfer" | |
737 | * AIM_TRANSFER_DENY_NOTACCEPTING -- "client is not accepting transfers" | |
738 | * | |
739 | */ | |
740 | faim_export unsigned long aim_denytransfer(struct aim_session_t *sess, | |
741 | struct aim_conn_t *conn, | |
742 | char *sender, | |
743 | char *cookie, | |
744 | unsigned short code) | |
745 | { | |
746 | struct command_tx_struct *newpacket; | |
747 | int curbyte, i; | |
748 | ||
749 | if(!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+8+2+1+strlen(sender)+6))) | |
750 | return -1; | |
751 | ||
752 | newpacket->lock = 1; | |
753 | ||
754 | curbyte = aim_putsnac(newpacket->data, 0x0004, 0x000b, 0x0000, sess->snac_nextid); | |
755 | for (i = 0; i < 8; i++) | |
756 | curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]); | |
757 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); | |
758 | curbyte += aimutil_put8(newpacket->data+curbyte, strlen(sender)); | |
759 | curbyte += aimutil_putstr(newpacket->data+curbyte, sender, strlen(sender)); | |
760 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0003, code); | |
761 | ||
762 | newpacket->lock = 0; | |
763 | aim_tx_enqueue(sess, newpacket); | |
764 | ||
765 | return (sess->snac_nextid++); | |
766 | } | |
767 | ||
768 | /* | |
769 | * Not real sure what this does, nor does anyone I've talk to. | |
770 | * | |
771 | * Didn't use to send it. But now I think it might be a good | |
772 | * idea. | |
773 | * | |
774 | */ | |
775 | faim_export unsigned long aim_seticbmparam(struct aim_session_t *sess, | |
776 | struct aim_conn_t *conn) | |
777 | { | |
778 | struct command_tx_struct *newpacket; | |
779 | int curbyte; | |
780 | ||
781 | if(!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+16))) | |
782 | return -1; | |
783 | ||
784 | newpacket->lock = 1; | |
785 | ||
786 | curbyte = aim_putsnac(newpacket->data, 0x0004, 0x0002, 0x0000, sess->snac_nextid); | |
787 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); | |
788 | curbyte += aimutil_put32(newpacket->data+curbyte, 0x00000003); | |
789 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x1f); | |
790 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x40); | |
791 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x03); | |
792 | curbyte += aimutil_put8(newpacket->data+curbyte, 0xe7); | |
793 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x03); | |
794 | curbyte += aimutil_put8(newpacket->data+curbyte, 0xe7); | |
795 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); | |
796 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); | |
797 | ||
798 | newpacket->lock = 0; | |
799 | aim_tx_enqueue(sess, newpacket); | |
800 | ||
801 | return (sess->snac_nextid++); | |
802 | } | |
803 | ||
804 | faim_internal int aim_parse_msgerror_middle(struct aim_session_t *sess, | |
805 | struct command_rx_struct *command) | |
806 | { | |
807 | u_long snacid = 0x000000000; | |
808 | struct aim_snac_t *snac = NULL; | |
809 | int ret = 0; | |
810 | rxcallback_t userfunc = NULL; | |
811 | char *dest; | |
812 | unsigned short reason = 0; | |
813 | ||
814 | /* | |
815 | * Get SNAC from packet and look it up | |
816 | * the list of unrepliedto/outstanding | |
817 | * SNACs. | |
818 | * | |
819 | * After its looked up, the SN that the | |
820 | * message should've gone to will be | |
821 | * in the ->data element of the snac struct. | |
822 | * | |
823 | */ | |
824 | snacid = aimutil_get32(command->data+6); | |
825 | snac = aim_remsnac(sess, snacid); | |
826 | ||
827 | if (!snac) { | |
828 | printf("faim: msgerr: got an ICBM-failed error on an unknown SNAC ID! (%08lx)\n", snacid); | |
829 | dest = NULL; | |
830 | } else | |
831 | dest = snac->data; | |
832 | ||
833 | reason = aimutil_get16(command->data+10); | |
834 | ||
835 | /* | |
836 | * Call client. | |
837 | */ | |
838 | userfunc = aim_callhandler(command->conn, 0x0004, 0x0001); | |
839 | if (userfunc) | |
840 | ret = userfunc(sess, command, dest, reason); | |
841 | else | |
842 | ret = 0; | |
843 | ||
844 | if (snac) { | |
845 | free(snac->data); | |
846 | free(snac); | |
847 | } | |
848 | ||
849 | return ret; | |
850 | } | |
851 | ||
852 | ||
853 | faim_internal int aim_parse_missedcall(struct aim_session_t *sess, | |
854 | struct command_rx_struct *command) | |
855 | { | |
856 | int i, ret = 1; | |
857 | rxcallback_t userfunc = NULL; | |
858 | unsigned short channel, nummissed, reason; | |
859 | struct aim_userinfo_s userinfo; | |
860 | ||
861 | i = 10; /* Skip SNAC header */ | |
862 | ||
863 | ||
864 | /* | |
865 | * XXX: supposedly, this entire packet can repeat as many times | |
866 | * as necessary. Should implement that. | |
867 | */ | |
868 | ||
869 | /* | |
870 | * Channel ID. | |
871 | */ | |
872 | channel = aimutil_get16(command->data+i); | |
873 | i += 2; | |
874 | ||
875 | /* | |
876 | * Extract the standard user info block. | |
877 | */ | |
878 | i += aim_extractuserinfo(command->data+i, &userinfo); | |
879 | ||
880 | nummissed = aimutil_get16(command->data+i); | |
881 | i += 2; | |
882 | ||
883 | reason = aimutil_get16(command->data+i); | |
884 | i += 2; | |
885 | ||
886 | /* | |
887 | * Call client. | |
888 | */ | |
889 | userfunc = aim_callhandler(command->conn, 0x0004, 0x000a); | |
890 | if (userfunc) | |
891 | ret = userfunc(sess, command, channel, &userinfo, nummissed, reason); | |
892 | else | |
893 | ret = 0; | |
894 | ||
895 | return ret; | |
896 | } |