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1 | /* | |
2 | * aim_im.c | |
3 | * | |
4 | * The routines for sending/receiving Instant Messages. | |
5 | * | |
6 | */ | |
7 | ||
8 | #define FAIM_INTERNAL | |
9 | #include <aim.h> | |
10 | ||
11 | /* | |
12 | * Takes a msghdr (and a length) and returns a client type | |
13 | * code. Note that this is *only a guess* and has a low likelihood | |
14 | * of actually being accurate. | |
15 | * | |
16 | * Its based on experimental data, with the help of Eric Warmenhoven | |
17 | * who seems to have collected a wide variety of different AIM clients. | |
18 | * | |
19 | * | |
20 | * Heres the current collection: | |
21 | * 0501 0003 0101 0101 01 AOL Mobile Communicator, WinAIM 1.0.414 | |
22 | * 0501 0003 0101 0201 01 WinAIM 2.0.847, 2.1.1187, 3.0.1464, | |
23 | * 4.3.2229, 4.4.2286 | |
24 | * 0501 0004 0101 0102 0101 WinAIM 4.1.2010, libfaim (right here) | |
25 | * 0501 0001 0101 01 AOL v6.0, CompuServe 2000 v6.0, any | |
26 | * TOC client | |
27 | */ | |
28 | faim_export unsigned short aim_fingerprintclient(unsigned char *msghdr, int len) | |
29 | { | |
30 | static const struct { | |
31 | unsigned short clientid; | |
32 | int len; | |
33 | unsigned char data[10]; | |
34 | } fingerprints[] = { | |
35 | /* AOL Mobile Communicator, WinAIM 1.0.414 */ | |
36 | { AIM_CLIENTTYPE_MC, | |
37 | 9, {0x05, 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01}}, | |
38 | ||
39 | /* WinAIM 2.0.847, 2.1.1187, 3.0.1464, 4.3.2229, 4.4.2286 */ | |
40 | { AIM_CLIENTTYPE_WINAIM, | |
41 | 9, {0x05, 0x01, 0x00, 0x03, 0x01, 0x01, 0x02, 0x01, 0x01}}, | |
42 | ||
43 | /* WinAIM 4.1.2010, libfaim */ | |
44 | { AIM_CLIENTTYPE_WINAIM41, | |
45 | 10, {0x05, 0x01, 0x00, 0x04, 0x01, 0x01, 0x01, 0x02, 0x01, 0x01}}, | |
46 | ||
47 | /* AOL v6.0, CompuServe 2000 v6.0, any TOC client */ | |
48 | { AIM_CLIENTTYPE_AOL_TOC, | |
49 | 7, {0x05, 0x01, 0x00, 0x01, 0x01, 0x01, 0x01}}, | |
50 | ||
51 | { 0, 0} | |
52 | }; | |
53 | int i; | |
54 | ||
55 | if (!msghdr || (len <= 0)) | |
56 | return 0; | |
57 | ||
58 | for (i = 0; fingerprints[i].len; i++) { | |
59 | if (fingerprints[i].len != len) | |
60 | continue; | |
61 | if (memcmp(fingerprints[i].data, msghdr, fingerprints[i].len) == 0) | |
62 | return fingerprints[i].clientid; | |
63 | } | |
64 | ||
65 | return AIM_CLIENTTYPE_UNKNOWN; | |
66 | } | |
67 | ||
68 | /* This should be endian-safe now... but who knows... */ | |
69 | faim_export unsigned short aim_iconsum(const unsigned char *buf, int buflen) | |
70 | { | |
71 | unsigned long sum; | |
72 | int i; | |
73 | ||
74 | for (i = 0, sum = 0; i < buflen; i += 2) | |
75 | sum += (buf[i+1] << 8) + buf[i]; | |
76 | ||
77 | sum = ((sum & 0xffff0000) >> 16) + (sum & 0x0000ffff); | |
78 | ||
79 | return sum & 0xffff; | |
80 | } | |
81 | ||
82 | /* | |
83 | * Send an ICBM (instant message). | |
84 | * | |
85 | * | |
86 | * Possible flags: | |
87 | * AIM_IMFLAGS_AWAY -- Marks the message as an autoresponse | |
88 | * AIM_IMFLAGS_ACK -- Requests that the server send an ack | |
89 | * when the message is received (of type 0x0004/0x000c) | |
90 | * AIM_IMFLAGS_UNICODE--Instead of ASCII7, the passed message is | |
91 | * made up of UNICODE duples. If you set | |
92 | * this, you'd better be damn sure you know | |
93 | * what you're doing. | |
94 | * AIM_IMFLAGS_ISO_8859_1 -- The message contains the ASCII8 subset | |
95 | * known as ISO-8859-1. | |
96 | * | |
97 | * Generally, you should use the lowest encoding possible to send | |
98 | * your message. If you only use basic punctuation and the generic | |
99 | * Latin alphabet, use ASCII7 (no flags). If you happen to use non-ASCII7 | |
100 | * characters, but they are all clearly defined in ISO-8859-1, then | |
101 | * use that. Keep in mind that not all characters in the PC ASCII8 | |
102 | * character set are defined in the ISO standard. For those cases (most | |
103 | * notably when the (r) symbol is used), you must use the full UNICODE | |
104 | * encoding for your message. In UNICODE mode, _all_ characters must | |
105 | * occupy 16bits, including ones that are not special. (Remember that | |
106 | * the first 128 UNICODE symbols are equivelent to ASCII7, however they | |
107 | * must be prefixed with a zero high order byte.) | |
108 | * | |
109 | * I strongly discourage the use of UNICODE mode, mainly because none | |
110 | * of the clients I use can parse those messages (and besides that, | |
111 | * wchars are difficult and non-portable to handle in most UNIX environments). | |
112 | * If you really need to include special characters, use the HTML UNICODE | |
113 | * entities. These are of the form ߪ where 2026 is the hex | |
114 | * representation of the UNICODE index (in this case, UNICODE | |
115 | * "Horizontal Ellipsis", or 133 in in ASCII8). | |
116 | * | |
117 | */ | |
118 | faim_export unsigned long aim_send_im_ext(struct aim_session_t *sess, struct aim_conn_t *conn, struct aim_sendimext_args *args) | |
119 | { | |
120 | int curbyte,i; | |
121 | struct command_tx_struct *newpacket; | |
122 | ||
123 | if (!sess || !conn || !args) | |
124 | return -1; | |
125 | ||
126 | if (!args->msg || (args->msglen <= 0)) | |
127 | return -1; | |
128 | ||
129 | if (args->msglen >= MAXMSGLEN) | |
130 | return -1; | |
131 | ||
132 | if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, args->msglen+512))) | |
133 | return -1; | |
134 | ||
135 | newpacket->lock = 1; /* lock struct */ | |
136 | ||
137 | curbyte = 0; | |
138 | curbyte += aim_putsnac(newpacket->data+curbyte, | |
139 | 0x0004, 0x0006, 0x0000, sess->snac_nextid); | |
140 | ||
141 | /* | |
142 | * Generate a random message cookie | |
143 | * | |
144 | * We could cache these like we do SNAC IDs. (In fact, it | |
145 | * might be a good idea.) In the message error functions, | |
146 | * the 8byte message cookie is returned as well as the | |
147 | * SNAC ID. | |
148 | * | |
149 | */ | |
150 | for (i = 0; i < 8; i++) | |
151 | curbyte += aimutil_put8(newpacket->data+curbyte, (u_char) rand()); | |
152 | ||
153 | /* | |
154 | * Channel ID | |
155 | */ | |
156 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0001); | |
157 | ||
158 | /* | |
159 | * Destination SN (prepended with byte length) | |
160 | */ | |
161 | curbyte += aimutil_put8(newpacket->data+curbyte, strlen(args->destsn)); | |
162 | curbyte += aimutil_putstr(newpacket->data+curbyte, args->destsn, strlen(args->destsn)); | |
163 | ||
164 | /* | |
165 | * metaTLV start. | |
166 | */ | |
167 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); | |
168 | curbyte += aimutil_put16(newpacket->data+curbyte, args->msglen + 0x10); | |
169 | ||
170 | /* | |
171 | * Flag data / ICBM Parameters? | |
172 | * | |
173 | * I don't know what these are... | |
174 | * | |
175 | */ | |
176 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x05); | |
177 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
178 | ||
179 | /* number of bytes to follow */ | |
180 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0004); | |
181 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
182 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
183 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
184 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x02); | |
185 | ||
186 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0101); | |
187 | ||
188 | /* | |
189 | * Message block length. | |
190 | */ | |
191 | curbyte += aimutil_put16(newpacket->data+curbyte, args->msglen + 0x04); | |
192 | ||
193 | /* | |
194 | * Character set. | |
195 | */ | |
196 | if (args->flags & AIM_IMFLAGS_UNICODE) | |
197 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); | |
198 | else if (args->flags & AIM_IMFLAGS_ISO_8859_1) | |
199 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0003); | |
200 | else | |
201 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); | |
202 | ||
203 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); | |
204 | ||
205 | /* | |
206 | * Message. Not terminated. | |
207 | */ | |
208 | curbyte += aimutil_putstr(newpacket->data+curbyte, args->msg, args->msglen); | |
209 | ||
210 | /* | |
211 | * Set the Request Acknowledge flag. | |
212 | */ | |
213 | if (args->flags & AIM_IMFLAGS_ACK) { | |
214 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0003); | |
215 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0000); | |
216 | } | |
217 | ||
218 | /* | |
219 | * Set the Autoresponse flag. | |
220 | */ | |
221 | if (args->flags & AIM_IMFLAGS_AWAY) { | |
222 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0004); | |
223 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0000); | |
224 | } | |
225 | ||
226 | /* | |
227 | * Set the Buddy Icon Requested flag. | |
228 | */ | |
229 | if (args->flags & AIM_IMFLAGS_BUDDYREQ) { | |
230 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0009); | |
231 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0000); | |
232 | } | |
233 | ||
234 | /* | |
235 | * Set the I HAVE A REALLY PURTY ICON flag (with timestamp). | |
236 | */ | |
237 | if (args->flags & AIM_IMFLAGS_HASICON) { | |
238 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0008); | |
239 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x000c); | |
240 | curbyte += aimutil_put32(newpacket->data+curbyte, args->iconlen); | |
241 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001); | |
242 | curbyte += aimutil_put16(newpacket->data+curbyte, args->iconsum); | |
243 | curbyte += aimutil_put32(newpacket->data+curbyte, args->iconstamp); | |
244 | } | |
245 | ||
246 | newpacket->commandlen = curbyte; | |
247 | newpacket->lock = 0; | |
248 | ||
249 | aim_tx_enqueue(sess, newpacket); | |
250 | ||
251 | #if 1 /* XXX do this with autoconf or something... */ | |
252 | aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, args->destsn, strlen(args->destsn)+1); | |
253 | aim_cleansnacs(sess, 60); /* clean out all SNACs over 60sec old */ | |
254 | #endif | |
255 | ||
256 | return sess->snac_nextid; | |
257 | } | |
258 | ||
259 | /* | |
260 | * Simple wrapper for aim_send_im_ext() | |
261 | * | |
262 | * You cannot use aim_send_im if you need the HASICON flag. You must | |
263 | * use aim_send_im_ext directly for that. | |
264 | * | |
265 | * aim_send_im also cannot be used if you require UNICODE messages, because | |
266 | * that requires an explicit message length. Use aim_send_im_ext(). | |
267 | * | |
268 | */ | |
269 | faim_export unsigned long aim_send_im(struct aim_session_t *sess, struct aim_conn_t *conn, const char *destsn, unsigned short flags, const char *msg) | |
270 | { | |
271 | struct aim_sendimext_args args; | |
272 | ||
273 | args.destsn = destsn; | |
274 | args.flags = flags; | |
275 | args.msg = msg; | |
276 | args.msglen = strlen(msg); | |
277 | ||
278 | return aim_send_im_ext(sess, conn, &args); | |
279 | } | |
280 | ||
281 | faim_export int aim_send_icon(struct aim_session_t *sess, struct aim_conn_t *conn, const char *sn, const unsigned char *icon, int iconlen, time_t stamp, unsigned short iconsum) | |
282 | { | |
283 | struct command_tx_struct *np; | |
284 | int i,curbyte = 0; | |
285 | unsigned char ck[8]; | |
286 | ||
287 | if (!sess || !conn || !sn || !icon || (iconlen <= 0) || (iconlen >= MAXICONLEN)) | |
288 | return -1; | |
289 | ||
290 | if (conn->type != AIM_CONN_TYPE_BOS) | |
291 | return -1; | |
292 | ||
293 | for (i = 0, curbyte = 0; i < 8; i++) | |
294 | curbyte += aimutil_put8(ck+curbyte, (u_char)rand()); | |
295 | ||
296 | if (!(np = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+8+2+1+strlen(sn)+2+2+2+8+16+2+2+2+2+2+2+2+4+4+4+iconlen+strlen(AIM_ICONIDENT)+2+2))) | |
297 | return -1; | |
298 | ||
299 | np->lock = 1; | |
300 | ||
301 | curbyte = aim_putsnac(np->data, 0x0004, 0x0006, 0x0000, sess->snac_nextid); | |
302 | ||
303 | /* | |
304 | * Cookie | |
305 | */ | |
306 | memcpy(np->data+curbyte, ck, 8); | |
307 | curbyte += 8; | |
308 | ||
309 | /* | |
310 | * Channel (2) | |
311 | */ | |
312 | curbyte += aimutil_put16(np->data+curbyte, 0x0002); | |
313 | ||
314 | /* | |
315 | * Dest sn | |
316 | */ | |
317 | curbyte += aimutil_put8(np->data+curbyte, strlen(sn)); | |
318 | curbyte += aimutil_putstr(np->data+curbyte, sn, strlen(sn)); | |
319 | ||
320 | /* | |
321 | * TLV t(0005) | |
322 | */ | |
323 | curbyte += aimutil_put16(np->data+curbyte, 0x0005); | |
324 | curbyte += aimutil_put16(np->data+curbyte, 2+8+16+6+4+4+iconlen+4+4+4+strlen(AIM_ICONIDENT)); | |
325 | ||
326 | curbyte += aimutil_put16(np->data+curbyte, 0x0000); | |
327 | ||
328 | memcpy(np->data+curbyte, ck, 8); | |
329 | curbyte += 8; | |
330 | ||
331 | curbyte += aim_putcap(np->data+curbyte, 16, AIM_CAPS_BUDDYICON); | |
332 | ||
333 | /* TLV t(000a) */ | |
334 | curbyte += aimutil_put16(np->data+curbyte, 0x000a); | |
335 | curbyte += aimutil_put16(np->data+curbyte, 0x0002); | |
336 | curbyte += aimutil_put16(np->data+curbyte, 0x0001); | |
337 | ||
338 | /* TLV t(000f) */ | |
339 | curbyte += aimutil_put16(np->data+curbyte, 0x000f); | |
340 | curbyte += aimutil_put16(np->data+curbyte, 0x0000); | |
341 | ||
342 | /* TLV t(2711) */ | |
343 | curbyte += aimutil_put16(np->data+curbyte, 0x2711); | |
344 | curbyte += aimutil_put16(np->data+curbyte, 4+4+4+iconlen+strlen(AIM_ICONIDENT)); | |
345 | curbyte += aimutil_put16(np->data+curbyte, 0x0000); | |
346 | curbyte += aimutil_put16(np->data+curbyte, iconsum); | |
347 | curbyte += aimutil_put32(np->data+curbyte, iconlen); | |
348 | curbyte += aimutil_put32(np->data+curbyte, stamp); | |
349 | memcpy(np->data+curbyte, icon, iconlen); | |
350 | curbyte += iconlen; | |
351 | memcpy(np->data+curbyte, AIM_ICONIDENT, strlen(AIM_ICONIDENT)); | |
352 | curbyte += strlen(AIM_ICONIDENT); | |
353 | ||
354 | /* TLV t(0003) */ | |
355 | curbyte += aimutil_put16(np->data+curbyte, 0x0003); | |
356 | curbyte += aimutil_put16(np->data+curbyte, 0x0000); | |
357 | ||
358 | np->commandlen = curbyte; | |
359 | np->lock = 0; | |
360 | aim_tx_enqueue(sess, np); | |
361 | ||
362 | return 0; | |
363 | } | |
364 | ||
365 | static int outgoingim(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
366 | { | |
367 | unsigned int i, ret = 0; | |
368 | aim_rxcallback_t userfunc; | |
369 | unsigned char cookie[8]; | |
370 | int channel; | |
371 | struct aim_tlvlist_t *tlvlist; | |
372 | char sn[MAXSNLEN]; | |
373 | unsigned short icbmflags = 0; | |
374 | unsigned char flag1 = 0, flag2 = 0; | |
375 | unsigned char *msgblock = NULL, *msg = NULL; | |
376 | ||
377 | /* ICBM Cookie. */ | |
378 | for (i = 0; i < 8; i++) | |
379 | cookie[i] = aimutil_get8(data+i); | |
380 | ||
381 | /* Channel ID */ | |
382 | channel = aimutil_get16(data+i); | |
383 | i += 2; | |
384 | ||
385 | if (channel != 0x01) { | |
386 | faimdprintf(sess, 0, "icbm: ICBM recieved on unsupported channel. Ignoring. (chan = %04x)\n", channel); | |
387 | return 1; | |
388 | } | |
389 | ||
390 | strncpy(sn, (char *) data+i+1, (int) *(data+i)); | |
391 | i += 1 + (int) *(data+i); | |
392 | ||
393 | tlvlist = aim_readtlvchain(data+i, datalen-i); | |
394 | ||
395 | if (aim_gettlv(tlvlist, 0x0003, 1)) | |
396 | icbmflags |= AIM_IMFLAGS_ACK; | |
397 | if (aim_gettlv(tlvlist, 0x0004, 1)) | |
398 | icbmflags |= AIM_IMFLAGS_AWAY; | |
399 | ||
400 | if (aim_gettlv(tlvlist, 0x0002, 1)) { | |
401 | int j = 0; | |
402 | ||
403 | msgblock = (unsigned char *)aim_gettlv_str(tlvlist, 0x0002, 1); | |
404 | ||
405 | /* no, this really is correct. I'm not high or anything either. */ | |
406 | j += 2; | |
407 | j += 2 + aimutil_get16(msgblock+j); | |
408 | j += 2; | |
409 | ||
410 | j += 2; /* final block length */ | |
411 | ||
412 | flag1 = aimutil_get16(msgblock); | |
413 | j += 2; | |
414 | flag2 = aimutil_get16(msgblock); | |
415 | j += 2; | |
416 | ||
417 | msg = msgblock+j; | |
418 | } | |
419 | ||
420 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
421 | ret = userfunc(sess, rx, channel, sn, msg, icbmflags, flag1, flag2); | |
422 | ||
423 | if (msgblock) | |
424 | free(msgblock); | |
425 | aim_freetlvchain(&tlvlist); | |
426 | ||
427 | return ret; | |
428 | } | |
429 | ||
430 | static int incomingim_ch1(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned short channel, struct aim_userinfo_s *userinfo, unsigned char *data, int datalen, unsigned char *cookie) | |
431 | { | |
432 | unsigned short type, length; | |
433 | aim_rxcallback_t userfunc; | |
434 | int i, ret = 0; | |
435 | struct aim_incomingim_ch1_args args; | |
436 | ||
437 | memset(&args, 0, sizeof(args)); | |
438 | ||
439 | /* | |
440 | * This used to be done using tlvchains. For performance reasons, | |
441 | * I've changed it to process the TLVs in-place. This avoids lots | |
442 | * of per-IM memory allocations. | |
443 | */ | |
444 | for (i = 0; i < datalen; ) { | |
445 | ||
446 | type = aimutil_get16(data+i); | |
447 | i += 2; | |
448 | ||
449 | length = aimutil_get16(data+i); | |
450 | i += 2; | |
451 | ||
452 | if (type == 0x0002) { /* Message Block */ | |
453 | unsigned short wastebits; | |
454 | unsigned char *msgblock; | |
455 | int j = 0, y = 0, z = 0; | |
456 | ||
457 | msgblock = data+i; | |
458 | ||
459 | /* | |
460 | * Extracting the message from the unknown cruft. | |
461 | * | |
462 | * This is a bit messy, and I'm not really qualified, | |
463 | * even as the author, to comment on it. At least | |
464 | * its not as bad as a while loop shooting into infinity. | |
465 | * | |
466 | * "Do you believe in magic?" | |
467 | * | |
468 | */ | |
469 | ||
470 | wastebits = aimutil_get8(msgblock+j++); | |
471 | wastebits = aimutil_get8(msgblock+j++); | |
472 | ||
473 | y = aimutil_get16(msgblock+j); | |
474 | j += 2; | |
475 | for (z = 0; z < y; z++) | |
476 | wastebits = aimutil_get8(msgblock+j++); | |
477 | wastebits = aimutil_get8(msgblock+j++); | |
478 | wastebits = aimutil_get8(msgblock+j++); | |
479 | ||
480 | args.finlen = j; | |
481 | if (args.finlen > sizeof(args.fingerprint)) | |
482 | args.finlen = sizeof(args.fingerprint); | |
483 | memcpy(args.fingerprint, msgblock, args.finlen); | |
484 | ||
485 | /* Message string length, including flag words. */ | |
486 | args.msglen = aimutil_get16(msgblock+j); | |
487 | j += 2; | |
488 | ||
489 | /* Flag words. */ | |
490 | args.flag1 = aimutil_get16(msgblock+j); | |
491 | if (args.flag1 == 0x0002) | |
492 | args.icbmflags |= AIM_IMFLAGS_UNICODE; | |
493 | else if (args.flag1 == 0x0003) | |
494 | args.icbmflags |= AIM_IMFLAGS_ISO_8859_1; | |
495 | j += 2; | |
496 | ||
497 | args.flag2 = aimutil_get16(msgblock+j); | |
498 | j += 2; | |
499 | ||
500 | if ((args.flag1 && (args.flag1 != 0x0002) && (args.flag1 != 0x0003)) || args.flag2) | |
501 | faimdprintf(sess, 0, "icbm: **warning: encoding flags are being used! {%04x, %04x}\n", args.flag1, args.flag2); | |
502 | ||
503 | /* Message string. */ | |
504 | args.msglen -= 4; | |
505 | if (args.icbmflags & AIM_IMFLAGS_UNICODE) { | |
506 | args.msg = malloc(args.msglen+2); | |
507 | memcpy(args.msg, msgblock+j, args.msglen); | |
508 | args.msg[args.msglen] = '\0'; /* wide NULL */ | |
509 | args.msg[args.msglen+1] = '\0'; | |
510 | } else { | |
511 | args.msg = malloc(args.msglen+1); | |
512 | memcpy(args.msg, msgblock+j, args.msglen); | |
513 | args.msg[args.msglen] = '\0'; | |
514 | } | |
515 | ||
516 | } else if (type == 0x0003) { /* Server Ack Requested */ | |
517 | ||
518 | args.icbmflags |= AIM_IMFLAGS_ACK; | |
519 | ||
520 | } else if (type == 0x0004) { /* Message is Auto Response */ | |
521 | ||
522 | args.icbmflags |= AIM_IMFLAGS_AWAY; | |
523 | ||
524 | } else if ((type == 0x0008) && | |
525 | (length == 0x000c)) { /* I-HAVE-A-REALLY-PURTY-ICON Flag */ | |
526 | ||
527 | args.iconstamp = aimutil_get32(data+i+8); | |
528 | args.icbmflags |= AIM_IMFLAGS_HASICON; | |
529 | ||
530 | } else if (type == 0x0009) { | |
531 | ||
532 | args.icbmflags |= AIM_IMFLAGS_BUDDYREQ; | |
533 | ||
534 | } else { | |
535 | fprintf(stderr, "incomingim_ch1: unknown TLV 0x%04x (len %d)\n", type, length); | |
536 | } | |
537 | ||
538 | i += length; | |
539 | } | |
540 | ||
541 | ||
542 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
543 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
544 | ||
545 | free(args.msg); | |
546 | ||
547 | return ret; | |
548 | } | |
549 | ||
550 | static int incomingim_ch2(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned short channel, struct aim_userinfo_s *userinfo, struct aim_tlvlist_t *tlvlist, unsigned char *cookie) | |
551 | { | |
552 | aim_rxcallback_t userfunc; | |
553 | struct aim_tlv_t *block1; | |
554 | struct aim_tlvlist_t *list2; | |
555 | int ret = 0; | |
556 | struct aim_incomingim_ch2_args args; | |
557 | ||
558 | memset(&args, 0, sizeof(args)); | |
559 | ||
560 | /* | |
561 | * There's another block of TLVs embedded in the type 5 here. | |
562 | */ | |
563 | block1 = aim_gettlv(tlvlist, 0x0005, 1); | |
564 | if (!block1 || !block1->value) { | |
565 | faimdprintf(sess, 0, "no tlv 0x0005 in rendezvous transaction!\n"); | |
566 | return 0; | |
567 | } | |
568 | ||
569 | /* | |
570 | * First two bytes represent the status of the connection. | |
571 | * | |
572 | * 0 is a request, 2 is an accept | |
573 | */ | |
574 | args.status = aimutil_get16(block1->value+0); | |
575 | ||
576 | /* | |
577 | * Next comes the cookie. Should match the ICBM cookie. | |
578 | */ | |
579 | if (memcmp(block1->value+2, cookie, 8) != 0) | |
580 | faimdprintf(sess, 0, "rend: warning cookies don't match!\n"); | |
581 | ||
582 | /* | |
583 | * The next 16bytes are a capability block so we can | |
584 | * identify what type of rendezvous this is. | |
585 | * | |
586 | * Thanks to Eric Warmenhoven <warmenhoven@linux.com> (of GAIM) | |
587 | * for pointing some of this out to me. In fact, a lot of | |
588 | * the client-to-client info comes from the work of the GAIM | |
589 | * developers. Thanks! | |
590 | * | |
591 | * Read off one capability string and we should have it ID'd. | |
592 | * | |
593 | */ | |
594 | if ((args.reqclass = aim_getcap(sess, block1->value+2+8, 0x10)) == 0x0000) { | |
595 | faimdprintf(sess, 0, "rend: no ID block\n"); | |
596 | return 0; | |
597 | } | |
598 | ||
599 | /* | |
600 | * What follows may be TLVs or nothing, depending on the | |
601 | * purpose of the message. | |
602 | * | |
603 | * Ack packets for instance have nothing more to them. | |
604 | */ | |
605 | list2 = aim_readtlvchain(block1->value+2+8+16, block1->length-2-8-16); | |
606 | ||
607 | if (!list2 || ((args.reqclass != AIM_CAPS_IMIMAGE) && !(aim_gettlv(list2, 0x2711, 1)))) { | |
608 | struct aim_msgcookie_t *cook; | |
609 | int type; | |
610 | ||
611 | type = aim_msgcookie_gettype(args.reqclass); /* XXX: fix this shitty code */ | |
612 | ||
613 | if ((cook = aim_checkcookie(sess, cookie, type)) == NULL) { | |
614 | faimdprintf(sess, 0, "non-data rendezvous thats not in cache %d/%s!\n", type, cookie); | |
615 | aim_freetlvchain(&list2); | |
616 | return 0; | |
617 | } | |
618 | ||
619 | if (cook->type == AIM_COOKIETYPE_OFTGET) { | |
620 | struct aim_filetransfer_priv *ft; | |
621 | ||
622 | if (cook->data) { | |
623 | int errorcode = -1; /* XXX shouldnt this be 0? */ | |
624 | ||
625 | ft = (struct aim_filetransfer_priv *)cook->data; | |
626 | ||
627 | if (args.status != 0x0002) { | |
628 | ||
629 | if (aim_gettlv(list2, 0x000b, 1)) | |
630 | errorcode = aim_gettlv16(list2, 0x000b, 1); | |
631 | ||
632 | /* XXX this should make it up to the client, you know.. */ | |
633 | if (errorcode) | |
634 | faimdprintf(sess, 0, "transfer from %s (%s) for %s cancelled (error code %d)\n", ft->sn, ft->ip, ft->fh.name, errorcode); | |
635 | } | |
636 | } else { | |
637 | faimdprintf(sess, 0, "no data attached to file transfer\n"); | |
638 | } | |
639 | } else if (cook->type == AIM_CAPS_VOICE) { | |
640 | faimdprintf(sess, 0, "voice request cancelled\n"); | |
641 | } else { | |
642 | faimdprintf(sess, 0, "unknown cookie cache type %d\n", cook->type); | |
643 | } | |
644 | ||
645 | aim_freetlvchain(&list2); | |
646 | ||
647 | return 1; | |
648 | } | |
649 | ||
650 | /* | |
651 | * The rest of the handling depends on what type it is. | |
652 | */ | |
653 | if (args.reqclass & AIM_CAPS_BUDDYICON) { | |
654 | struct aim_tlv_t *miscinfo; | |
655 | int curpos = 0; | |
656 | ||
657 | miscinfo = aim_gettlv(list2, 0x2711, 1); | |
658 | ||
659 | /* aimutil_get32(miscinfo->value+curpos); i don't know what this is */ | |
660 | curpos += 4; | |
661 | args.info.icon.length = aimutil_get32(miscinfo->value+curpos); | |
662 | curpos += 4; | |
663 | args.info.icon.timestamp = aimutil_get32(miscinfo->value+curpos); | |
664 | curpos += 4; | |
665 | args.info.icon.icon = malloc(args.info.icon.length); | |
666 | memcpy(args.info.icon.icon, miscinfo->value+curpos, args.info.icon.length); | |
667 | ||
668 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
669 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
670 | ||
671 | free(args.info.icon.icon); | |
672 | ||
673 | } else if (args.reqclass & AIM_CAPS_VOICE) { | |
674 | struct aim_msgcookie_t *cachedcook; | |
675 | ||
676 | faimdprintf(sess, 0, "rend: voice!\n"); | |
677 | ||
678 | if(!(cachedcook = (struct aim_msgcookie_t*)calloc(1, sizeof(struct aim_msgcookie_t)))) { | |
679 | aim_freetlvchain(&list2); | |
680 | return 0; | |
681 | } | |
682 | ||
683 | memcpy(cachedcook->cookie, cookie, 8); | |
684 | cachedcook->type = AIM_COOKIETYPE_OFTVOICE; | |
685 | cachedcook->data = NULL; | |
686 | ||
687 | if (aim_cachecookie(sess, cachedcook) == -1) | |
688 | faimdprintf(sess, 0, "ERROR caching message cookie\n"); | |
689 | ||
690 | /* XXX: implement all this */ | |
691 | ||
692 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
693 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
694 | ||
695 | } else if (args.reqclass & AIM_CAPS_IMIMAGE) { | |
696 | char ip[30]; | |
697 | struct aim_directim_priv *priv; | |
698 | ||
699 | memset(ip, 0, sizeof(ip)); | |
700 | ||
701 | if (aim_gettlv(list2, 0x0003, 1) && aim_gettlv(list2, 0x0005, 1)) { | |
702 | struct aim_tlv_t *iptlv, *porttlv; | |
703 | ||
704 | iptlv = aim_gettlv(list2, 0x0003, 1); | |
705 | porttlv = aim_gettlv(list2, 0x0005, 1); | |
706 | ||
707 | snprintf(ip, 30, "%d.%d.%d.%d:%d", | |
708 | aimutil_get8(iptlv->value+0), | |
709 | aimutil_get8(iptlv->value+1), | |
710 | aimutil_get8(iptlv->value+2), | |
711 | aimutil_get8(iptlv->value+3), | |
712 | 4443 /*aimutil_get16(porttlv->value)*/); | |
713 | } | |
714 | ||
715 | faimdprintf(sess, 0, "rend: directIM request from %s (%s)\n", | |
716 | userinfo->sn, ip); | |
717 | ||
718 | /* | |
719 | * XXX: there are a couple of different request packets for | |
720 | * different things | |
721 | */ | |
722 | ||
723 | args.info.directim = priv = (struct aim_directim_priv *)calloc(1, sizeof(struct aim_directim_priv)); | |
724 | memcpy(priv->ip, ip, sizeof(priv->ip)); | |
725 | memcpy(priv->sn, userinfo->sn, sizeof(priv->sn)); | |
726 | memcpy(priv->cookie, cookie, sizeof(priv->cookie)); | |
727 | ||
728 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
729 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
730 | ||
731 | } else if (args.reqclass & AIM_CAPS_CHAT) { | |
732 | struct aim_tlv_t *miscinfo; | |
733 | ||
734 | miscinfo = aim_gettlv(list2, 0x2711, 1); | |
735 | aim_chat_readroominfo(miscinfo->value, &args.info.chat.roominfo); | |
736 | ||
737 | if (aim_gettlv(list2, 0x000c, 1)) | |
738 | args.info.chat.msg = aim_gettlv_str(list2, 0x000c, 1); | |
739 | ||
740 | if (aim_gettlv(list2, 0x000d, 1)) | |
741 | args.info.chat.encoding = aim_gettlv_str(list2, 0x000d, 1); | |
742 | ||
743 | if (aim_gettlv(list2, 0x000e, 1)) | |
744 | args.info.chat.lang = aim_gettlv_str(list2, 0x000e, 1); | |
745 | ||
746 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
747 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
748 | ||
749 | free(args.info.chat.roominfo.name); | |
750 | free(args.info.chat.msg); | |
751 | free(args.info.chat.encoding); | |
752 | free(args.info.chat.lang); | |
753 | ||
754 | } else if (args.reqclass & AIM_CAPS_GETFILE) { | |
755 | char ip[30]; | |
756 | struct aim_msgcookie_t *cachedcook; | |
757 | struct aim_tlv_t *miscinfo; | |
758 | struct aim_tlv_t *iptlv, *porttlv; | |
759 | ||
760 | memset(ip, 0, 30); | |
761 | ||
762 | if (!(cachedcook = calloc(1, sizeof(struct aim_msgcookie_t)))) { | |
763 | aim_freetlvchain(&list2); | |
764 | return 0; | |
765 | } | |
766 | ||
767 | if (!(miscinfo = aim_gettlv(list2, 0x2711, 1)) || | |
768 | !(iptlv = aim_gettlv(list2, 0x0003, 1)) || | |
769 | !(porttlv = aim_gettlv(list2, 0x0005, 1))) { | |
770 | faimdprintf(sess, 0, "rend: badly damaged file get request from %s...\n", userinfo->sn); | |
771 | aim_cookie_free(sess, cachedcook); | |
772 | aim_freetlvchain(&list2); | |
773 | return 0; | |
774 | } | |
775 | ||
776 | snprintf(ip, 30, "%d.%d.%d.%d:%d", | |
777 | aimutil_get8(iptlv->value+0), | |
778 | aimutil_get8(iptlv->value+1), | |
779 | aimutil_get8(iptlv->value+2), | |
780 | aimutil_get8(iptlv->value+3), | |
781 | aimutil_get16(porttlv->value)); | |
782 | ||
783 | faimdprintf(sess, 0, "rend: file get request from %s (%s)\n", userinfo->sn, ip); | |
784 | ||
785 | args.info.getfile.ip = ip; | |
786 | args.info.getfile.cookie = cookie; | |
787 | ||
788 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
789 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
790 | ||
791 | } else if (args.reqclass & AIM_CAPS_SENDFILE) { | |
792 | #if 0 | |
793 | char ip[30]; | |
794 | struct aim_msgcookie_t *cachedcook; | |
795 | struct aim_tlv_t *miscinfo; | |
796 | struct aim_tlv_t *iptlv, *porttlv; | |
797 | ||
798 | memset(ip, 0, 30); | |
799 | ||
800 | if (!(cachedcook = calloc(1, sizeof(struct aim_msgcookie_t)))) { | |
801 | aim_freetlvchain(&list2); | |
802 | return 0; | |
803 | } | |
804 | ||
805 | if (!(miscinfo = aim_gettlv(list2, 0x2711, 1)) || | |
806 | !(iptlv = aim_gettlv(list2, 0x0003, 1)) || | |
807 | !(porttlv = aim_gettlv(list2, 0x0005, 1))) { | |
808 | faimdprintf(sess, 0, "rend: badly damaged file get request from %s...\n", userinfo->sn); | |
809 | aim_cookie_free(sess, cachedcook); | |
810 | aim_freetlvchain(&list2); | |
811 | return 0; | |
812 | } | |
813 | ||
814 | snprintf(ip, 30, "%d.%d.%d.%d:%d", | |
815 | aimutil_get8(iptlv->value+0), | |
816 | aimutil_get8(iptlv->value+1), | |
817 | aimutil_get8(iptlv->value+2), | |
818 | aimutil_get8(iptlv->value+3), | |
819 | aimutil_get16(porttlv->value)); | |
820 | ||
821 | if (aim_gettlv(list2, 0x000c, 1)) | |
822 | desc = aim_gettlv_str(list2, 0x000c, 1); | |
823 | ||
824 | faimdprintf(sess, 0, "rend: file transfer request from %s for %s: %s (%s)\n", | |
825 | userinfo->sn, miscinfo->value+8, | |
826 | desc, ip); | |
827 | ||
828 | memcpy(cachedcook->cookie, cookie, 8); | |
829 | ||
830 | ft = malloc(sizeof(struct aim_filetransfer_priv)); | |
831 | strncpy(ft->sn, userinfo.sn, sizeof(ft->sn)); | |
832 | strncpy(ft->ip, ip, sizeof(ft->ip)); | |
833 | strncpy(ft->fh.name, miscinfo->value+8, sizeof(ft->fh.name)); | |
834 | cachedcook->type = AIM_COOKIETYPE_OFTSEND; | |
835 | cachedcook->data = ft; | |
836 | ||
837 | if (aim_cachecookie(sess, cachedcook) == -1) | |
838 | faimdprintf(sess, 0, "ERROR caching message cookie\n"); | |
839 | ||
840 | aim_accepttransfer(sess, rx->conn, ft->sn, cookie, AIM_CAPS_SENDFILE); | |
841 | ||
842 | if (desc) | |
843 | free(desc); | |
844 | ||
845 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
846 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
847 | ||
848 | #endif | |
849 | } else | |
850 | faimdprintf(sess, 0, "rend: unknown rendezvous 0x%04x\n", args.reqclass); | |
851 | ||
852 | aim_freetlvchain(&list2); | |
853 | ||
854 | return ret; | |
855 | } | |
856 | ||
857 | /* | |
858 | * It can easily be said that parsing ICBMs is THE single | |
859 | * most difficult thing to do in the in AIM protocol. In | |
860 | * fact, I think I just did say that. | |
861 | * | |
862 | * Below is the best damned solution I've come up with | |
863 | * over the past sixteen months of battling with it. This | |
864 | * can parse both away and normal messages from every client | |
865 | * I have access to. Its not fast, its not clean. But it works. | |
866 | * | |
867 | */ | |
868 | static int incomingim(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
869 | { | |
870 | int i, ret = 0; | |
871 | unsigned char cookie[8]; | |
872 | int channel; | |
873 | struct aim_userinfo_s userinfo; | |
874 | ||
875 | memset(&userinfo, 0x00, sizeof(struct aim_userinfo_s)); | |
876 | ||
877 | /* | |
878 | * Read ICBM Cookie. And throw away. | |
879 | */ | |
880 | for (i = 0; i < 8; i++) | |
881 | cookie[i] = aimutil_get8(data+i); | |
882 | ||
883 | /* | |
884 | * Channel ID. | |
885 | * | |
886 | * Channel 0x0001 is the message channel. There are | |
887 | * other channels for things called "rendevous" | |
888 | * which represent chat and some of the other new | |
889 | * features of AIM2/3/3.5. | |
890 | * | |
891 | * Channel 0x0002 is the Rendevous channel, which | |
892 | * is where Chat Invitiations and various client-client | |
893 | * connection negotiations come from. | |
894 | * | |
895 | */ | |
896 | channel = aimutil_get16(data+i); | |
897 | i += 2; | |
898 | ||
899 | /* | |
900 | * | |
901 | */ | |
902 | if ((channel != 0x01) && (channel != 0x02)) { | |
903 | faimdprintf(sess, 0, "icbm: ICBM received on an unsupported channel. Ignoring.\n (chan = %04x)", channel); | |
904 | return 1; | |
905 | } | |
906 | ||
907 | /* | |
908 | * Extract the standard user info block. | |
909 | * | |
910 | * Note that although this contains TLVs that appear contiguous | |
911 | * with the TLVs read below, they are two different pieces. The | |
912 | * userinfo block contains the number of TLVs that contain user | |
913 | * information, the rest are not even though there is no seperation. | |
914 | * aim_extractuserinfo() returns the number of bytes used by the | |
915 | * userinfo tlvs, so you can start reading the rest of them right | |
916 | * afterward. | |
917 | * | |
918 | * That also means that TLV types can be duplicated between the | |
919 | * userinfo block and the rest of the message, however there should | |
920 | * never be two TLVs of the same type in one block. | |
921 | * | |
922 | */ | |
923 | i += aim_extractuserinfo(sess, data+i, &userinfo); | |
924 | ||
925 | /* | |
926 | * From here on, its depends on what channel we're on. | |
927 | * | |
928 | * Technically all channels have a TLV list have this, however, | |
929 | * for the common channel 1 case, in-place parsing is used for | |
930 | * performance reasons (less memory allocation). | |
931 | */ | |
932 | if (channel == 1) { | |
933 | ||
934 | ret = incomingim_ch1(sess, mod, rx, snac, channel, &userinfo, data+i, datalen-i, cookie); | |
935 | ||
936 | } else if (channel == 0x0002) { | |
937 | struct aim_tlvlist_t *tlvlist; | |
938 | ||
939 | /* | |
940 | * Read block of TLVs (not including the userinfo data). All | |
941 | * further data is derived from what is parsed here. | |
942 | */ | |
943 | tlvlist = aim_readtlvchain(data+i, datalen-i); | |
944 | ||
945 | ret = incomingim_ch2(sess, mod, rx, snac, channel, &userinfo, tlvlist, cookie); | |
946 | ||
947 | /* | |
948 | * Free up the TLV chain. | |
949 | */ | |
950 | aim_freetlvchain(&tlvlist); | |
951 | } | |
952 | ||
953 | return ret; | |
954 | } | |
955 | ||
956 | /* | |
957 | * Possible codes: | |
958 | * AIM_TRANSFER_DENY_NOTSUPPORTED -- "client does not support" | |
959 | * AIM_TRANSFER_DENY_DECLINE -- "client has declined transfer" | |
960 | * AIM_TRANSFER_DENY_NOTACCEPTING -- "client is not accepting transfers" | |
961 | * | |
962 | */ | |
963 | faim_export unsigned long aim_denytransfer(struct aim_session_t *sess, | |
964 | struct aim_conn_t *conn, | |
965 | char *sender, | |
966 | char *cookie, | |
967 | unsigned short code) | |
968 | { | |
969 | struct command_tx_struct *newpacket; | |
970 | int curbyte, i; | |
971 | ||
972 | if(!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+8+2+1+strlen(sender)+6))) | |
973 | return -1; | |
974 | ||
975 | newpacket->lock = 1; | |
976 | ||
977 | curbyte = aim_putsnac(newpacket->data, 0x0004, 0x000b, 0x0000, sess->snac_nextid); | |
978 | for (i = 0; i < 8; i++) | |
979 | curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]); | |
980 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); | |
981 | curbyte += aimutil_put8(newpacket->data+curbyte, strlen(sender)); | |
982 | curbyte += aimutil_putstr(newpacket->data+curbyte, sender, strlen(sender)); | |
983 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0003, code); | |
984 | ||
985 | newpacket->lock = 0; | |
986 | aim_tx_enqueue(sess, newpacket); | |
987 | ||
988 | return (sess->snac_nextid++); | |
989 | } | |
990 | ||
991 | /* | |
992 | * Not real sure what this does, nor does anyone I've talk to. | |
993 | * | |
994 | * Didn't use to send it. But now I think it might be a good | |
995 | * idea. | |
996 | * | |
997 | */ | |
998 | faim_export unsigned long aim_seticbmparam(struct aim_session_t *sess, | |
999 | struct aim_conn_t *conn) | |
1000 | { | |
1001 | struct command_tx_struct *newpacket; | |
1002 | int curbyte; | |
1003 | ||
1004 | if(!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+16))) | |
1005 | return -1; | |
1006 | ||
1007 | newpacket->lock = 1; | |
1008 | ||
1009 | curbyte = aim_putsnac(newpacket->data, 0x0004, 0x0002, 0x0000, sess->snac_nextid); | |
1010 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); | |
1011 | curbyte += aimutil_put32(newpacket->data+curbyte, 0x00000003); | |
1012 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x1f40); | |
1013 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x03e7); | |
1014 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x03e7); | |
1015 | curbyte += aimutil_put32(newpacket->data+curbyte, 0x00000000); | |
1016 | ||
1017 | newpacket->lock = 0; | |
1018 | aim_tx_enqueue(sess, newpacket); | |
1019 | ||
1020 | return (sess->snac_nextid++); | |
1021 | } | |
1022 | ||
1023 | static int paraminfo(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
1024 | { | |
1025 | unsigned long defflags, minmsginterval; | |
1026 | unsigned short maxicbmlen, maxsenderwarn, maxrecverwarn, maxchannel; | |
1027 | aim_rxcallback_t userfunc; | |
1028 | int i = 0; | |
1029 | ||
1030 | maxchannel = aimutil_get16(data+i); | |
1031 | i += 2; | |
1032 | ||
1033 | defflags = aimutil_get32(data+i); | |
1034 | i += 4; | |
1035 | ||
1036 | maxicbmlen = aimutil_get16(data+i); | |
1037 | i += 2; | |
1038 | ||
1039 | maxsenderwarn = aimutil_get16(data+i); | |
1040 | i += 2; | |
1041 | ||
1042 | maxrecverwarn = aimutil_get16(data+i); | |
1043 | i += 2; | |
1044 | ||
1045 | minmsginterval = aimutil_get32(data+i); | |
1046 | i += 4; | |
1047 | ||
1048 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
1049 | return userfunc(sess, rx, maxchannel, defflags, maxicbmlen, maxsenderwarn, maxrecverwarn, minmsginterval); | |
1050 | ||
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | static int missedcall(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
1055 | { | |
1056 | int i = 0; | |
1057 | aim_rxcallback_t userfunc; | |
1058 | unsigned short channel, nummissed, reason; | |
1059 | struct aim_userinfo_s userinfo; | |
1060 | ||
1061 | /* | |
1062 | * XXX: supposedly, this entire packet can repeat as many times | |
1063 | * as necessary. Should implement that. | |
1064 | */ | |
1065 | ||
1066 | /* | |
1067 | * Channel ID. | |
1068 | */ | |
1069 | channel = aimutil_get16(data+i); | |
1070 | i += 2; | |
1071 | ||
1072 | /* | |
1073 | * Extract the standard user info block. | |
1074 | */ | |
1075 | i += aim_extractuserinfo(sess, data+i, &userinfo); | |
1076 | ||
1077 | nummissed = aimutil_get16(data+i); | |
1078 | i += 2; | |
1079 | ||
1080 | reason = aimutil_get16(data+i); | |
1081 | i += 2; | |
1082 | ||
1083 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
1084 | return userfunc(sess, rx, channel, &userinfo, nummissed, reason); | |
1085 | ||
1086 | return 0; | |
1087 | } | |
1088 | ||
1089 | static int msgack(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
1090 | { | |
1091 | aim_rxcallback_t userfunc; | |
1092 | char sn[MAXSNLEN]; | |
1093 | unsigned char ck[8]; | |
1094 | unsigned short type; | |
1095 | int i = 0; | |
1096 | unsigned char snlen; | |
1097 | ||
1098 | memcpy(ck, data, 8); | |
1099 | i += 8; | |
1100 | ||
1101 | type = aimutil_get16(data+i); | |
1102 | i += 2; | |
1103 | ||
1104 | snlen = aimutil_get8(data+i); | |
1105 | i++; | |
1106 | ||
1107 | memset(sn, 0, sizeof(sn)); | |
1108 | strncpy(sn, (char *)data+i, snlen); | |
1109 | ||
1110 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
1111 | return userfunc(sess, rx, type, sn); | |
1112 | ||
1113 | return 0; | |
1114 | } | |
1115 | ||
1116 | static int snachandler(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
1117 | { | |
1118 | ||
1119 | if (snac->subtype == 0x0005) | |
1120 | return paraminfo(sess, mod, rx, snac, data, datalen); | |
1121 | else if (snac->subtype == 0x0006) | |
1122 | return outgoingim(sess, mod, rx, snac, data, datalen); | |
1123 | else if (snac->subtype == 0x0007) | |
1124 | return incomingim(sess, mod, rx, snac, data, datalen); | |
1125 | else if (snac->subtype == 0x000a) | |
1126 | return missedcall(sess, mod, rx, snac, data, datalen); | |
1127 | else if (snac->subtype == 0x000c) | |
1128 | return msgack(sess, mod, rx, snac, data, datalen); | |
1129 | ||
1130 | return 0; | |
1131 | } | |
1132 | ||
1133 | faim_internal int msg_modfirst(struct aim_session_t *sess, aim_module_t *mod) | |
1134 | { | |
1135 | ||
1136 | mod->family = 0x0004; | |
1137 | mod->version = 0x0000; | |
1138 | mod->flags = 0; | |
1139 | strncpy(mod->name, "messaging", sizeof(mod->name)); | |
1140 | mod->snachandler = snachandler; | |
1141 | ||
1142 | return 0; | |
1143 | } |