bitlbee - personal fork of github.com/bitlbee/bitlbee

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Diffstat (limited to 'protocols/jabber/xmlparse.h')

0 files changed, 0 insertions, 0 deletions

/* * aim_im.c * * The routines for sending/receiving Instant Messages. * * Note the term ICBM (Inter-Client Basic Message) which blankets * all types of genericly routed through-server messages. Within * the ICBM types (family 4), a channel is defined. Each channel * represents a different type of message. Channel 1 is used for * what would commonly be called an "instant message". Channel 2 * is used for negotiating "rendezvous". These transactions end in * something more complex happening, such as a chat invitation, or * a file transfer. * * In addition to the channel, every ICBM contains a cookie. For * standard IMs, these are only used for error messages. However, * the more complex rendezvous messages make suitably more complex * use of this field. * */ #include <aim.h> #include "im.h" #include "info.h" /* * Takes a msghdr (and a length) and returns a client type * code. Note that this is *only a guess* and has a low likelihood * of actually being accurate. * * Its based on experimental data, with the help of Eric Warmenhoven * who seems to have collected a wide variety of different AIM clients. * * * Heres the current collection: * 0501 0003 0101 0101 01 AOL Mobile Communicator, WinAIM 1.0.414 * 0501 0003 0101 0201 01 WinAIM 2.0.847, 2.1.1187, 3.0.1464, * 4.3.2229, 4.4.2286 * 0501 0004 0101 0102 0101 WinAIM 4.1.2010, libfaim (right here) * 0501 0001 0101 01 AOL v6.0, CompuServe 2000 v6.0, any * TOC client * * Note that in this function, only the feature bytes are tested, since * the rest will always be the same. * */ guint16 aim_fingerprintclient(guint8 *msghdr, int len) { static const struct { guint16 clientid; int len; guint8 data[10]; } fingerprints[] = { /* AOL Mobile Communicator, WinAIM 1.0.414 */ { AIM_CLIENTTYPE_MC, 3, {0x01, 0x01, 0x01}}, /* WinAIM 2.0.847, 2.1.1187, 3.0.1464, 4.3.2229, 4.4.2286 */ { AIM_CLIENTTYPE_WINAIM, 3, {0x01, 0x01, 0x02}}, /* WinAIM 4.1.2010, libfaim */ { AIM_CLIENTTYPE_WINAIM41, 4, {0x01, 0x01, 0x01, 0x02}}, /* AOL v6.0, CompuServe 2000 v6.0, any TOC client */ { AIM_CLIENTTYPE_AOL_TOC, 1, {0x01}}, { 0, 0} }; int i; if (!msghdr || (len <= 0)) return AIM_CLIENTTYPE_UNKNOWN; for (i = 0; fingerprints[i].len; i++) { if (fingerprints[i].len != len) continue; if (memcmp(fingerprints[i].data, msghdr, fingerprints[i].len) == 0) return fingerprints[i].clientid; } return AIM_CLIENTTYPE_UNKNOWN; } /* This should be endian-safe now... but who knows... */ guint16 aim_iconsum(const guint8 *buf, int buflen) { guint32 sum; int i; for (i = 0, sum = 0; i + 1 < buflen; i += 2) sum += (buf[i+1] << 8) + buf[i]; if (i < buflen) sum += buf[i]; sum = ((sum & 0xffff0000) >> 16) + (sum & 0x0000ffff); return (guint16)sum; } /* * Send an ICBM (instant message). * * * Possible flags: * AIM_IMFLAGS_AWAY -- Marks the message as an autoresponse * AIM_IMFLAGS_ACK -- Requests that the server send an ack * when the message is received (of type 0x0004/0x000c) * AIM_IMFLAGS_OFFLINE--If destination is offline, store it until they are * online (probably ICQ only). * AIM_IMFLAGS_UNICODE--Instead of ASCII7, the passed message is * made up of UNICODE duples. If you set * this, you'd better be damn sure you know * what you're doing. * AIM_IMFLAGS_ISO_8859_1 -- The message contains the ASCII8 subset * known as ISO-8859-1. * * Generally, you should use the lowest encoding possible to send * your message. If you only use basic punctuation and the generic * Latin alphabet, use ASCII7 (no flags). If you happen to use non-ASCII7 * characters, but they are all clearly defined in ISO-8859-1, then * use that. Keep in mind that not all characters in the PC ASCII8 * character set are defined in the ISO standard. For those cases (most * notably when the (r) symbol is used), you must use the full UNICODE * encoding for your message. In UNICODE mode, _all_ characters must * occupy 16bits, including ones that are not special. (Remember that * the first 128 UNICODE symbols are equivelent to ASCII7, however they * must be prefixed with a zero high order byte.) * * I strongly discourage the use of UNICODE mode, mainly because none * of the clients I use can parse those messages (and besides that, * wchars are difficult and non-portable to handle in most UNIX environments). * If you really need to include special characters, use the HTML UNICODE * entities. These are of the form ߪ where 2026 is the hex * representation of the UNICODE index (in this case, UNICODE * "Horizontal Ellipsis", or 133 in in ASCII8). * * Implementation note: Since this is one of the most-used functions * in all of libfaim, it is written with performance in mind. As such, * it is not as clear as it could be in respect to how this message is * supposed to be layed out. Most obviously, tlvlists should be used * instead of writing out the bytes manually. * * XXX more precise verification that we never send SNACs larger than 8192 * XXX check SNAC size for multipart * */ int aim_send_im_ext(aim_session_t *sess, struct aim_sendimext_args *args) { static const guint8 deffeatures[] = { 0x01, 0x01, 0x01, 0x02 }; aim_conn_t *conn; int i, msgtlvlen; aim_frame_t *fr; aim_snacid_t snacid; if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) return -EINVAL; if (!args) return -EINVAL; if (args->flags & AIM_IMFLAGS_MULTIPART) { if (args->mpmsg->numparts <= 0) return -EINVAL; } else { if (!args->msg || (args->msglen <= 0)) return -EINVAL; if (args->msglen >= MAXMSGLEN) return -E2BIG; } /* Painfully calculate the size of the message TLV */ msgtlvlen = 1 + 1; /* 0501 */ if (args->flags & AIM_IMFLAGS_CUSTOMFEATURES) msgtlvlen += 2 + args->featureslen; else msgtlvlen += 2 + sizeof(deffeatures); if (args->flags & AIM_IMFLAGS_MULTIPART) { aim_mpmsg_section_t *sec; for (sec = args->mpmsg->parts; sec; sec = sec->next) { msgtlvlen += 2 /* 0101 */ + 2 /* block len */; msgtlvlen += 4 /* charset */ + sec->datalen; } } else { msgtlvlen += 2 /* 0101 */ + 2 /* block len */; msgtlvlen += 4 /* charset */ + args->msglen; } if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, msgtlvlen+128))) return -ENOMEM; /* XXX should be optional */ snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, args->destsn, strlen(args->destsn)+1); aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid); /* * Generate a random message cookie * * We could cache these like we do SNAC IDs. (In fact, it * might be a good idea.) In the message error functions, * the 8byte message cookie is returned as well as the * SNAC ID. * */ for (i = 0; i < 8; i++) aimbs_put8(&fr->data, (guint8) rand()); /* * Channel ID */ aimbs_put16(&fr->data, 0x0001); /* * Destination SN (prepended with byte length) */ aimbs_put8(&fr->data, strlen(args->destsn)); aimbs_putraw(&fr->data, (guint8 *)args->destsn, strlen(args->destsn)); /* * Message TLV (type 2). */ aimbs_put16(&fr->data, 0x0002); aimbs_put16(&fr->data, msgtlvlen); /* * Features * */ aimbs_put8(&fr->data, 0x05); aimbs_put8(&fr->data, 0x01); if (args->flags & AIM_IMFLAGS_CUSTOMFEATURES) { aimbs_put16(&fr->data, args->featureslen); aimbs_putraw(&fr->data, args->features, args->featureslen); } else { aimbs_put16(&fr->data, sizeof(deffeatures)); aimbs_putraw(&fr->data, deffeatures, sizeof(deffeatures)); } if (args->flags & AIM_IMFLAGS_MULTIPART) { aim_mpmsg_section_t *sec; for (sec = args->mpmsg->parts; sec; sec = sec->next) { aimbs_put16(&fr->data, 0x0101); aimbs_put16(&fr->data, sec->datalen + 4); aimbs_put16(&fr->data, sec->charset); aimbs_put16(&fr->data, sec->charsubset); aimbs_putraw(&fr->data, sec->data, sec->datalen); } } else { aimbs_put16(&fr->data, 0x0101); /* * Message block length. */ aimbs_put16(&fr->data, args->msglen + 0x04); /* * Character set. */ if (args->flags & AIM_IMFLAGS_CUSTOMCHARSET) { aimbs_put16(&fr->data, args->charset); aimbs_put16(&fr->data, args->charsubset); } else { if (args->flags & AIM_IMFLAGS_UNICODE) aimbs_put16(&fr->data, 0x0002); else if (args->flags & AIM_IMFLAGS_ISO_8859_1) aimbs_put16(&fr->data, 0x0003); else aimbs_put16(&fr->data, 0x0000); aimbs_put16(&fr->data, 0x0000); } /* * Message. Not terminated. */ aimbs_putraw(&fr->data, (guint8 *)args->msg, args->msglen); } /* * Set the Request Acknowledge flag. */ if (args->flags & AIM_IMFLAGS_ACK) { aimbs_put16(&fr->data, 0x0003); aimbs_put16(&fr->data, 0x0000); } /* * Set the Autoresponse flag. */ if (args->flags & AIM_IMFLAGS_AWAY) { aimbs_put16(&fr->data, 0x0004); aimbs_put16(&fr->data, 0x0000); } if (args->flags & AIM_IMFLAGS_OFFLINE) { aimbs_put16(&fr->data, 0x0006); aimbs_put16(&fr->data, 0x0000); } /* * Set the I HAVE A REALLY PURTY ICON flag. */ if (args->flags & AIM_IMFLAGS_HASICON) { aimbs_put16(&fr->data, 0x0008); aimbs_put16(&fr->data, 0x000c); aimbs_put32(&fr->data, args->iconlen); aimbs_put16(&fr->data, 0x0001); aimbs_put16(&fr->data, args->iconsum); aimbs_put32(&fr->data, args->iconstamp); } /* * Set the Buddy Icon Requested flag. */ if (args->flags & AIM_IMFLAGS_BUDDYREQ) { aimbs_put16(&fr->data, 0x0009); aimbs_put16(&fr->data, 0x0000); } aim_tx_enqueue(sess, fr); if (!(sess->flags & AIM_SESS_FLAGS_DONTTIMEOUTONICBM)) aim_cleansnacs(sess, 60); /* clean out SNACs over 60sec old */ return 0; } /* * Simple wrapper for aim_send_im_ext() * * You cannot use aim_send_im if you need the HASICON flag. You must * use aim_send_im_ext directly for that. * * aim_send_im also cannot be used if you require UNICODE messages, because * that requires an explicit message length. Use aim_send_im_ext(). * */ int aim_send_im(aim_session_t *sess, const char *destsn, guint16 flags, const char *msg) { struct aim_sendimext_args args; args.destsn = destsn; args.flags = flags; args.msg = msg; args.msglen = strlen(msg); /* Make these don't get set by accident -- they need aim_send_im_ext */ args.flags &= ~(AIM_IMFLAGS_CUSTOMFEATURES | AIM_IMFLAGS_HASICON | AIM_IMFLAGS_MULTIPART); return aim_send_im_ext(sess, &args); } /* * This is also performance sensitive. (If you can believe it...) * */ int aim_send_icon(aim_session_t *sess, const char *sn, const guint8 *icon, int iconlen, time_t stamp, guint16 iconsum) { aim_conn_t *conn; int i; guint8 ck[8]; aim_frame_t *fr; aim_snacid_t snacid; if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) return -EINVAL; if (!sn || !icon || (iconlen <= 0) || (iconlen >= MAXICONLEN)) return -EINVAL; for (i = 0; i < 8; i++) aimutil_put8(ck+i, (guint8) rand()); if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 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))) return -ENOMEM; snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, NULL, 0); aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid); /* * Cookie */ aimbs_putraw(&fr->data, ck, 8); /* * Channel (2) */ aimbs_put16(&fr->data, 0x0002); /* * Dest sn */ aimbs_put8(&fr->data, strlen(sn)); aimbs_putraw(&fr->data, (guint8 *)sn, strlen(sn)); /* * TLV t(0005) * * Encompasses everything below. */ aimbs_put16(&fr->data, 0x0005); aimbs_put16(&fr->data, 2+8+16+6+4+4+iconlen+4+4+4+strlen(AIM_ICONIDENT)); aimbs_put16(&fr->data, 0x0000); aimbs_putraw(&fr->data, ck, 8); aim_putcap(&fr->data, AIM_CAPS_BUDDYICON); /* TLV t(000a) */ aimbs_put16(&fr->data, 0x000a); aimbs_put16(&fr->data, 0x0002); aimbs_put16(&fr->data, 0x0001); /* TLV t(000f) */ aimbs_put16(&fr->data, 0x000f); aimbs_put16(&fr->data, 0x0000); /* TLV t(2711) */ aimbs_put16(&fr->data, 0x2711); aimbs_put16(&fr->data, 4+4+4+iconlen+strlen(AIM_ICONIDENT)); aimbs_put16(&fr->data, 0x0000); aimbs_put16(&fr->data, iconsum); aimbs_put32(&fr->data, iconlen); aimbs_put32(&fr->data, stamp); aimbs_putraw(&fr->data, icon, iconlen); aimbs_putraw(&fr->data, (guint8 *)AIM_ICONIDENT, strlen(AIM_ICONIDENT)); /* TLV t(0003) */ aimbs_put16(&fr->data, 0x0003); aimbs_put16(&fr->data, 0x0000); aim_tx_enqueue(sess, fr); return 0; } /* * This only works for ICQ 2001b (thats 2001 not 2000). Better, only * send it to clients advertising the RTF capability. In fact, if you send * it to a client that doesn't support that capability, the server will gladly * bounce it back to you. * * You'd think this would be in icq.c, but, well, I'm trying to stick with * the one-group-per-file scheme as much as possible. This could easily * be an exception, since Rendezvous IMs are external of the Oscar core, * and therefore are undefined. Really I just need to think of a good way to * make an interface similar to what AOL actually uses. But I'm not using COM. * */ int aim_send_rtfmsg(aim_session_t *sess, struct aim_sendrtfmsg_args *args) { const char rtfcap[] = {"{97B12751-243C-4334-AD22-D6ABF73F1492}"}; /* AIM_CAPS_ICQRTF capability in string form */ aim_conn_t *conn; int i; guint8 ck[8]; aim_frame_t *fr; aim_snacid_t snacid; int servdatalen; if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) return -EINVAL; if (!args || !args->destsn || !args->rtfmsg) return -EINVAL; servdatalen = 2+2+16+2+4+1+2 + 2+2+4+4+4 + 2+4+2+strlen(args->rtfmsg)+1 + 4+4+4+strlen(rtfcap)+1; for (i = 0; i < 8; i++) aimutil_put8(ck+i, (guint8) rand()); if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+128+servdatalen))) return -ENOMEM; snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, NULL, 0); aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid); /* * Cookie */ aimbs_putraw(&fr->data, ck, 8); /* * Channel (2) */ aimbs_put16(&fr->data, 0x0002); /* * Dest sn */ aimbs_put8(&fr->data, strlen(args->destsn)); aimbs_putraw(&fr->data, (guint8 *)args->destsn, strlen(args->destsn)); /* * TLV t(0005) * * Encompasses everything below. */ aimbs_put16(&fr->data, 0x0005); aimbs_put16(&fr->data, 2+8+16 + 2+2+2 + 2+2 + 2+2+servdatalen); aimbs_put16(&fr->data, 0x0000); aimbs_putraw(&fr->data, ck, 8); aim_putcap(&fr->data, AIM_CAPS_ICQSERVERRELAY); /* * t(000a) l(0002) v(0001) */ aimbs_put16(&fr->data, 0x000a); aimbs_put16(&fr->data, 0x0002); aimbs_put16(&fr->data, 0x0001); /* * t(000f) l(0000) v() */ aimbs_put16(&fr->data, 0x000f); aimbs_put16(&fr->data, 0x0000); /* * Service Data TLV */ aimbs_put16(&fr->data, 0x2711); aimbs_put16(&fr->data, servdatalen); aimbs_putle16(&fr->data, 11 + 16 /* 11 + (sizeof CLSID) */); aimbs_putle16(&fr->data, 9); aim_putcap(&fr->data, AIM_CAPS_EMPTY); aimbs_putle16(&fr->data, 0); aimbs_putle32(&fr->data, 0); aimbs_putle8(&fr->data, 0); aimbs_putle16(&fr->data, 0x03ea); /* trid1 */ aimbs_putle16(&fr->data, 14); aimbs_putle16(&fr->data, 0x03eb); /* trid2 */ aimbs_putle32(&fr->data, 0); aimbs_putle32(&fr->data, 0); aimbs_putle32(&fr->data, 0); aimbs_putle16(&fr->data, 0x0001); aimbs_putle32(&fr->data, 0); aimbs_putle16(&fr->data, strlen(args->rtfmsg)+1); aimbs_putraw(&fr->data, (guint8 *)args->rtfmsg, strlen(args->rtfmsg)+1); aimbs_putle32(&fr->data, args->fgcolor); aimbs_putle32(&fr->data, args->bgcolor); aimbs_putle32(&fr->data, strlen(rtfcap)+1); aimbs_putraw(&fr->data, (guint8 *)rtfcap, strlen(rtfcap)+1); aim_tx_enqueue(sess, fr); return 0; } int aim_request_directim(aim_session_t *sess, const char *destsn, guint8 *ip, guint16 port, guint8 *ckret) { aim_conn_t *conn; guint8 ck[8]; aim_frame_t *fr; aim_snacid_t snacid; aim_tlvlist_t *tl = NULL, *itl = NULL; int hdrlen, i; guint8 *hdr; aim_bstream_t hdrbs; if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) return -EINVAL; if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 256+strlen(destsn)))) return -ENOMEM; snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, NULL, 0); aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid); /* * Generate a random message cookie * * This cookie needs to be alphanumeric and NULL-terminated to be * TOC-compatible. * * XXX have I mentioned these should be generated in msgcookie.c? * */ for (i = 0; i < 7; i++) ck[i] = 0x30 + ((guint8) rand() % 10); ck[7] = '\0'; if (ckret) memcpy(ckret, ck, 8); /* Cookie */ aimbs_putraw(&fr->data, ck, 8); /* Channel */ aimbs_put16(&fr->data, 0x0002); /* Destination SN */ aimbs_put8(&fr->data, strlen(destsn)); aimbs_putraw(&fr->data, (guint8 *)destsn, strlen(destsn)); aim_addtlvtochain_noval(&tl, 0x0003); hdrlen = 2+8+16+6+8+6+4; hdr = g_malloc(hdrlen); aim_bstream_init(&hdrbs, hdr, hdrlen); aimbs_put16(&hdrbs, 0x0000); aimbs_putraw(&hdrbs, ck, 8); aim_putcap(&hdrbs, AIM_CAPS_IMIMAGE); aim_addtlvtochain16(&itl, 0x000a, 0x0001); aim_addtlvtochain_raw(&itl, 0x0003, 4, ip); aim_addtlvtochain16(&itl, 0x0005, port); aim_addtlvtochain_noval(&itl, 0x000f); aim_writetlvchain(&hdrbs, &itl); aim_addtlvtochain_raw(&tl, 0x0005, aim_bstream_curpos(&hdrbs), hdr); aim_writetlvchain(&fr->data, &tl); g_free(hdr); aim_freetlvchain(&itl); aim_freetlvchain(&tl); aim_tx_enqueue(sess, fr); return 0; } int aim_request_sendfile(aim_session_t *sess, const char *sn, const char *filename, guint16 numfiles, guint32 totsize, guint8 *ip, guint16 port, guint8 *ckret) { aim_conn_t *conn; int i; guint8 ck[8]; aim_frame_t *fr; aim_snacid_t snacid; if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) return -EINVAL; if (!sn || !filename) return -EINVAL; if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+8+2+1+strlen(sn)+2+2+2+8+16+6+8+6+4+2+2+2+2+4+strlen(filename)+4))) return -ENOMEM; snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, NULL, 0); aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid); for (i = 0; i < 7; i++) aimutil_put8(ck+i, 0x30 + ((guint8) rand() % 10)); ck[7] = '\0'; if (ckret) memcpy(ckret, ck, 8); /* * Cookie */ aimbs_putraw(&fr->data, ck, 8); /* * Channel (2) */ aimbs_put16(&fr->data, 0x0002); /* * Dest sn */ aimbs_put8(&fr->data, strlen(sn)); aimbs_putraw(&fr->data, (guint8 *)sn, strlen(sn)); /* * TLV t(0005) * * Encompasses everything below. Gee. */ aimbs_put16(&fr->data, 0x0005); aimbs_put16(&fr->data, 2+8+16+6+8+6+4+2+2+2+2+4+strlen(filename)+4); aimbs_put16(&fr->data, 0x0000); aimbs_putraw(&fr->data, ck, 8); aim_putcap(&fr->data, AIM_CAPS_SENDFILE); /* TLV t(000a) */ aimbs_put16(&fr->data, 0x000a); aimbs_put16(&fr->data, 0x0002); aimbs_put16(&fr->data, 0x0001); /* TLV t(0003) (IP) */ aimbs_put16(&fr->data, 0x0003); aimbs_put16(&fr->data, 0x0004); aimbs_putraw(&fr->data, ip, 4); /* TLV t(0005) (port) */ aimbs_put16(&fr->data, 0x0005); aimbs_put16(&fr->data, 0x0002); aimbs_put16(&fr->data, port); /* TLV t(000f) */ aimbs_put16(&fr->data, 0x000f); aimbs_put16(&fr->data, 0x0000); /* TLV t(2711) */ aimbs_put16(&fr->data, 0x2711); aimbs_put16(&fr->data, 2+2+4+strlen(filename)+4); /* ? */ aimbs_put16(&fr->data, 0x0001); aimbs_put16(&fr->data, numfiles); aimbs_put32(&fr->data, totsize); aimbs_putraw(&fr->data, (guint8 *)filename, strlen(filename)); /* ? */ aimbs_put32(&fr->data, 0x00000000); aim_tx_enqueue(sess, fr); return 0; } /** * Request the status message of the given ICQ user. * * @param sess The oscar session. * @param sn The UIN of the user of whom you wish to request info. * @param type The type of info you wish to request. This should be the current * state of the user, as one of the AIM_ICQ_STATE_* defines. * @return Return 0 if no errors, otherwise return the error number. */ int aim_send_im_ch2_geticqmessage(aim_session_t *sess, const char *sn, int type) { aim_conn_t *conn; int i; guint8 ck[8]; aim_frame_t *fr; aim_snacid_t snacid; if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004)) || !sn) return -EINVAL; for (i = 0; i < 8; i++) aimutil_put8(ck+i, (guint8) rand()); if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+8+2+1+strlen(sn) + 4+0x5e + 4))) return -ENOMEM; snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, NULL, 0); aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid); /* Cookie */ aimbs_putraw(&fr->data, ck, 8); /* Channel (2) */ aimbs_put16(&fr->data, 0x0002); /* Dest sn */ aimbs_put8(&fr->data, strlen(sn)); aimbs_putraw(&fr->data, (guint8 *)sn, strlen(sn)); /* TLV t(0005) - Encompasses almost everything below. */ aimbs_put16(&fr->data, 0x0005); /* T */ aimbs_put16(&fr->data, 0x005e); /* L */ { /* V */ aimbs_put16(&fr->data, 0x0000); /* Cookie */ aimbs_putraw(&fr->data, ck, 8); /* Put the 16 byte server relay capability */ aim_putcap(&fr->data, AIM_CAPS_ICQSERVERRELAY); /* TLV t(000a) */ aimbs_put16(&fr->data, 0x000a); aimbs_put16(&fr->data, 0x0002); aimbs_put16(&fr->data, 0x0001); /* TLV t(000f) */ aimbs_put16(&fr->data, 0x000f); aimbs_put16(&fr->data, 0x0000); /* TLV t(2711) */ aimbs_put16(&fr->data, 0x2711); aimbs_put16(&fr->data, 0x0036); { /* V */ aimbs_putle16(&fr->data, 0x001b); /* L */ aimbs_putle16(&fr->data, 0x0008); /* AAA - Protocol version */ aimbs_putle32(&fr->data, 0x00000000); /* Unknown */ aimbs_putle32(&fr->data, 0x00000000); /* Unknown */ aimbs_putle32(&fr->data, 0x00000000); /* Unknown */ aimbs_putle32(&fr->data, 0x00000000); /* Unknown */ aimbs_putle16(&fr->data, 0x0000); /* Unknown */ aimbs_putle16(&fr->data, 0x0003); /* Client features? */ aimbs_putle16(&fr->data, 0x0000); /* Unknown */ aimbs_putle8(&fr->data, 0x00); /* Unkizown */ aimbs_putle16(&fr->data, 0xffff); /* Sequence number? XXX - This should decrement by 1 with each request */ aimbs_putle16(&fr->data, 0x000e); /* L */ aimbs_putle16(&fr->data, 0xffff); /* Sequence number? XXX - This should decrement by 1 with each request */ aimbs_putle32(&fr->data, 0x00000000); /* Unknown */ aimbs_putle32(&fr->data, 0x00000000); /* Unknown */ aimbs_putle32(&fr->data, 0x00000000); /* Unknown */ /* The type of status message being requested */ if (type & AIM_ICQ_STATE_CHAT) aimbs_putle16(&fr->data, 0x03ec); else if(type & AIM_ICQ_STATE_DND) aimbs_putle16(&fr->data, 0x03eb); else if(type & AIM_ICQ_STATE_OUT) aimbs_putle16(&fr->data, 0x03ea); else if(type & AIM_ICQ_STATE_BUSY) aimbs_putle16(&fr->data, 0x03e9); else if(type & AIM_ICQ_STATE_AWAY) aimbs_putle16(&fr->data, 0x03e8); aimbs_putle16(&fr->data, 0x0000); /* Status? */ aimbs_putle16(&fr->data, 0x0001); /* Priority of this message? */ aimbs_putle16(&fr->data, 0x0001); /* L? */ aimbs_putle8(&fr->data, 0x00); /* Null termination? */ } /* End TLV t(2711) */ } /* End TLV t(0005) */ /* TLV t(0003) */ aimbs_put16(&fr->data, 0x0003); aimbs_put16(&fr->data, 0x0000); aim_tx_enqueue(sess, fr); return 0; } /** * answers status message requests * @param sess the oscar session * @param sender the guy whos asking * @param cookie message id which we are answering for * @param message away message * @param state our current away state the way icq requests it (0xE8 for away, 0xE9 occupied, ...) * @return 0 if no error */ int aim_send_im_ch2_statusmessage(aim_session_t *sess, const char *sender, const guint8 *cookie, const char *message, const guint8 state, const guint16 dc) { aim_conn_t *conn; aim_frame_t *fr; aim_snacid_t snacid; if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) return -EINVAL; if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+8+2+1+strlen(sender)+2+0x1d+0x10+9+strlen(message)+1))) return -ENOMEM; snacid = aim_cachesnac(sess, 0x0004, 0x000b, 0x0000, NULL, 0); aim_putsnac(&fr->data, 0x0004, 0x000b, 0x0000, snacid); aimbs_putraw(&fr->data, cookie, 8); aimbs_put16(&fr->data, 0x0002); /* channel */ aimbs_put8(&fr->data, strlen(sender)); aimbs_putraw(&fr->data, (guint8 *)sender, strlen(sender)); aimbs_put16(&fr->data, 0x0003); /* reason: channel specific */ aimbs_putle16(&fr->data, 0x001b); /* length of data SEQ1 */ aimbs_putle16(&fr->data, 0x0008); /* protocol version */ aimbs_putle32(&fr->data, 0x0000); /* no plugin -> 16 times 0x00 */ aimbs_putle32(&fr->data, 0x0000); aimbs_putle32(&fr->data, 0x0000); aimbs_putle32(&fr->data, 0x0000); aimbs_putle16(&fr->data, 0x0000); /* unknown */ aimbs_putle32(&fr->data, 0x0003); /* client features */ aimbs_putle8(&fr->data, 0x00); /* unknown */ aimbs_putle16(&fr->data, dc); /* Sequence number? XXX - This should decrement by 1 with each request */ /* end of SEQ1 */ aimbs_putle16(&fr->data, 0x000e); /* Length of SEQ2 */ aimbs_putle16(&fr->data, dc); /* Sequence number? same as above * XXX - This should decrement by 1 with each request */ aimbs_putle32(&fr->data, 0x00000000); /* Unknown */ aimbs_putle32(&fr->data, 0x00000000); /* Unknown */ aimbs_putle32(&fr->data, 0x00000000); /* Unknown */ /* end of SEQ2 */ /* now for the real fun */ aimbs_putle8(&fr->data, state); /* away state */ aimbs_putle8(&fr->data, 0x03); /* msg-flag: 03 for states */ aimbs_putle16(&fr->data, 0x0000); /* status code ? */ aimbs_putle16(&fr->data, 0x0000); /* priority code */ aimbs_putle16(&fr->data, strlen(message) + 1); /* message length + termination */ aimbs_putraw(&fr->data, (guint8 *) message, strlen(message) + 1); /* null terminated string */ aim_tx_enqueue(sess, fr); return 0; } static int outgoingim(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) { int i, ret = 0; aim_rxcallback_t userfunc; guint8 cookie[8]; guint16 channel; aim_tlvlist_t *tlvlist; char *sn; int snlen; guint16 icbmflags = 0; guint8 flag1 = 0, flag2 = 0; char *msg = NULL; aim_tlv_t *msgblock; /* ICBM Cookie. */ for (i = 0; i < 8; i++) cookie[i] = aimbs_get8(bs); /* Channel ID */ channel = aimbs_get16(bs); if (channel != 0x01) { do_error_dialog(sess->aux_data, "icbm: ICBM recieved on unsupported channel. Ignoring.", "Gaim"); return 0; } snlen = aimbs_get8(bs); sn = aimbs_getstr(bs, snlen); tlvlist = aim_readtlvchain(bs); if (aim_gettlv(tlvlist, 0x0003, 1)) icbmflags |= AIM_IMFLAGS_ACK; if (aim_gettlv(tlvlist, 0x0004, 1)) icbmflags |= AIM_IMFLAGS_AWAY; if ((msgblock = aim_gettlv(tlvlist, 0x0002, 1))) { aim_bstream_t mbs; int featurelen, msglen; aim_bstream_init(&mbs, msgblock->value, msgblock->length); aimbs_get8(&mbs); aimbs_get8(&mbs); for (featurelen = aimbs_get16(&mbs); featurelen; featurelen--) aimbs_get8(&mbs); aimbs_get8(&mbs); aimbs_get8(&mbs); msglen = aimbs_get16(&mbs) - 4; /* final block length */ flag1 = aimbs_get16(&mbs); flag2 = aimbs_get16(&mbs); msg = aimbs_getstr(&mbs, msglen); } if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) ret = userfunc(sess, rx, channel, sn, msg, icbmflags, flag1, flag2); g_free(sn); aim_freetlvchain(&tlvlist); return ret; } /* * Ahh, the joys of nearly ridiculous over-engineering. * * Not only do AIM ICBM's support multiple channels. Not only do they * support multiple character sets. But they support multiple character * sets / encodings within the same ICBM. * * These multipart messages allow for complex space savings techniques, which * seem utterly unnecessary by today's standards. In fact, there is only * one client still in popular use that still uses this method: AOL for the * Macintosh, Version 5.0. Obscure, yes, I know. * * In modern (non-"legacy") clients, if the user tries to send a character * that is not ISO-8859-1 or ASCII, the client will send the entire message * as UNICODE, meaning that every character in the message will occupy the * full 16 bit UNICODE field, even if the high order byte would be zero. * Multipart messages prevent this wasted space by allowing the client to * only send the characters in UNICODE that need to be sent that way, and * the rest of the message can be sent in whatever the native character * set is (probably ASCII). * * An important note is that sections will be displayed in the order that * they appear in the ICBM. There is no facility for merging or rearranging * sections at run time. So if you have, say, ASCII then UNICODE then ASCII, * you must supply two ASCII sections with a UNICODE in the middle, and incur * the associated overhead. * * Normally I would have laughed and given a firm 'no' to supporting this * seldom-used feature, but something is attracting me to it. In the future, * it may be possible to abuse this to send mixed-media messages to other * open source clients (like encryption or something) -- see faimtest for * examples of how to do this. * * I would definitly recommend avoiding this feature unless you really * know what you are doing, and/or you have something neat to do with it. * */ int aim_mpmsg_init(aim_session_t *sess, aim_mpmsg_t *mpm) { memset(mpm, 0, sizeof(aim_mpmsg_t)); return 0; } static int mpmsg_addsection(aim_session_t *sess, aim_mpmsg_t *mpm, guint16 charset, guint16 charsubset, guint8 *data, guint16 datalen) { aim_mpmsg_section_t *sec; if (!(sec = g_new0(aim_mpmsg_section_t,1))) return -1; sec->charset = charset; sec->charsubset = charsubset; sec->data = data; sec->datalen = datalen; sec->next = NULL; if (!mpm->parts) mpm->parts = sec; else { aim_mpmsg_section_t *cur; for (cur = mpm->parts; cur->next; cur = cur->next) ; cur->next = sec; } mpm->numparts++; return 0; } int aim_mpmsg_addraw(aim_session_t *sess, aim_mpmsg_t *mpm, guint16 charset, guint16 charsubset, const guint8 *data, guint16 datalen) { guint8 *dup; if (!(dup = g_malloc(datalen))) return -1; memcpy(dup, data, datalen); if (mpmsg_addsection(sess, mpm, charset, charsubset, dup, datalen) == -1) { g_free(dup); return -1; } return 0; } /* XXX should provide a way of saying ISO-8859-1 specifically */ int aim_mpmsg_addascii(aim_session_t *sess, aim_mpmsg_t *mpm, const char *ascii) { char *dup; if (!(dup = g_strdup(ascii))) return -1; if (mpmsg_addsection(sess, mpm, 0x0000, 0x0000, (guint8 *)dup, (guint16) strlen(ascii)) == -1) { g_free(dup); return -1; } return 0; } int aim_mpmsg_addunicode(aim_session_t *sess, aim_mpmsg_t *mpm, const guint16 *unicode, guint16 unicodelen) { guint8 *buf; aim_bstream_t bs; int i; if (!(buf = g_malloc(unicodelen * 2))) return -1; aim_bstream_init(&bs, buf, unicodelen * 2); /* We assume unicode is in /host/ byte order -- convert to network */ for (i = 0; i < unicodelen; i++) aimbs_put16(&bs, unicode[i]); if (mpmsg_addsection(sess, mpm, 0x0002, 0x0000, buf, aim_bstream_curpos(&bs)) == -1) { g_free(buf); return -1; } return 0; } void aim_mpmsg_free(aim_session_t *sess, aim_mpmsg_t *mpm) { aim_mpmsg_section_t *cur; for (cur = mpm->parts; cur; ) { aim_mpmsg_section_t *tmp; tmp = cur->next; g_free(cur->data); g_free(cur); cur = tmp; } mpm->numparts = 0; mpm->parts = NULL; return; } /* * Start by building the multipart structures, then pick the first * human-readable section and stuff it into args->msg so no one gets * suspicious. * */ static int incomingim_ch1_parsemsgs(aim_session_t *sess, guint8 *data, int len, struct aim_incomingim_ch1_args *args) { static const guint16 charsetpri[] = { 0x0000, /* ASCII first */ 0x0003, /* then ISO-8859-1 */ 0x0002, /* UNICODE as last resort */ }; static const int charsetpricount = 3; int i; aim_bstream_t mbs; aim_mpmsg_section_t *sec; aim_bstream_init(&mbs, data, len); while (aim_bstream_empty(&mbs)) { guint16 msglen, flag1, flag2; char *msgbuf; aimbs_get8(&mbs); /* 01 */ aimbs_get8(&mbs); /* 01 */ /* Message string length, including character set info. */ msglen = aimbs_get16(&mbs); /* Character set info */ flag1 = aimbs_get16(&mbs); flag2 = aimbs_get16(&mbs); /* Message. */ msglen -= 4; /* * For now, we don't care what the encoding is. Just copy * it into a multipart struct and deal with it later. However, * always pad the ending with a NULL. This makes it easier * to treat ASCII sections as strings. It won't matter for * UNICODE or binary data, as you should never read past * the specified data length, which will not include the pad. * * XXX There's an API bug here. For sending, the UNICODE is * given in host byte order (aim_mpmsg_addunicode), but here * the received messages are given in network byte order. * */ msgbuf = aimbs_getstr(&mbs, msglen); mpmsg_addsection(sess, &args->mpmsg, flag1, flag2, (guint8 *)msgbuf, (guint16) msglen); } /* while */ args->icbmflags |= AIM_IMFLAGS_MULTIPART; /* always set */ /* * Clients that support multiparts should never use args->msg, as it * will point to an arbitrary section. * * Here, we attempt to provide clients that do not support multipart * messages with something to look at -- hopefully a human-readable * string. But, failing that, a UNICODE message, or nothing at all. * * Which means that even if args->msg is NULL, it does not mean the * message was blank. * */ for (i = 0; i < charsetpricount; i++) { for (sec = args->mpmsg.parts; sec; sec = sec->next) { if (sec->charset != charsetpri[i]) continue; /* Great. We found one. Fill it in. */ args->charset = sec->charset; args->charsubset = sec->charsubset; args->icbmflags |= AIM_IMFLAGS_CUSTOMCHARSET; /* Set up the simple flags */ if (args->charset == 0x0000) ; /* ASCII */ else if (args->charset == 0x0002) args->icbmflags |= AIM_IMFLAGS_UNICODE; else if (args->charset == 0x0003) args->icbmflags |= AIM_IMFLAGS_ISO_8859_1; else if (args->charset == 0xffff) ; /* no encoding (yeep!) */ if (args->charsubset == 0x0000) ; /* standard subencoding? */ else if (args->charsubset == 0x000b) args->icbmflags |= AIM_IMFLAGS_SUBENC_MACINTOSH; else if (args->charsubset == 0xffff) ; /* no subencoding */ #if 0 /* XXX this isn't really necesary... */ if ( ((args.flag1 != 0x0000) && (args.flag1 != 0x0002) && (args.flag1 != 0x0003) && (args.flag1 != 0xffff)) || ((args.flag2 != 0x0000) && (args.flag2 != 0x000b) && (args.flag2 != 0xffff))) { faimdprintf(sess, 0, "icbm: **warning: encoding flags are being used! {%04x, %04x}\n", args.flag1, args.flag2); } #endif args->msg = (char *)sec->data; args->msglen = sec->datalen; return 0; } } /* No human-readable sections found. Oh well. */ args->charset = args->charsubset = 0xffff; args->msg = NULL; args->msglen = 0; return 0; } static int incomingim_ch1(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, guint16 channel, aim_userinfo_t *userinfo, aim_bstream_t *bs, guint8 *cookie) { guint16 type, length; aim_rxcallback_t userfunc; int ret = 0; struct aim_incomingim_ch1_args args; int endpos; memset(&args, 0, sizeof(args)); aim_mpmsg_init(sess, &args.mpmsg); /* * This used to be done using tlvchains. For performance reasons, * I've changed it to process the TLVs in-place. This avoids lots * of per-IM memory allocations. */ while (aim_bstream_empty(bs)) { type = aimbs_get16(bs); length = aimbs_get16(bs); endpos = aim_bstream_curpos(bs) + length; if (type == 0x0002) { /* Message Block */ /* * This TLV consists of the following: * - 0501 -- Unknown * - Features: Don't know how to interpret these * - 0101 -- Unknown * - Message * */ aimbs_get8(bs); /* 05 */ aimbs_get8(bs); /* 01 */ args.featureslen = aimbs_get16(bs); /* XXX XXX this is all evil! */ args.features = bs->data + bs->offset; aim_bstream_advance(bs, args.featureslen); args.icbmflags |= AIM_IMFLAGS_CUSTOMFEATURES; /* * The rest of the TLV contains one or more message * blocks... */ incomingim_ch1_parsemsgs(sess, bs->data + bs->offset /* XXX evil!!! */, length - 2 - 2 - args.featureslen, &args); } else if (type == 0x0003) { /* Server Ack Requested */ args.icbmflags |= AIM_IMFLAGS_ACK; } else if (type == 0x0004) { /* Message is Auto Response */ args.icbmflags |= AIM_IMFLAGS_AWAY; } else if (type == 0x0006) { /* Message was received offline. */ /* XXX not sure if this actually gets sent. */ args.icbmflags |= AIM_IMFLAGS_OFFLINE; } else if (type == 0x0008) { /* I-HAVE-A-REALLY-PURTY-ICON Flag */ args.iconlen = aimbs_get32(bs); aimbs_get16(bs); /* 0x0001 */ args.iconsum = aimbs_get16(bs); args.iconstamp = aimbs_get32(bs); /* * This looks to be a client bug. MacAIM 4.3 will * send this tag, but with all zero values, in the * first message of a conversation. This makes no * sense whatsoever, so I'm going to say its a bug. * * You really shouldn't advertise a zero-length icon * anyway. * */ if (args.iconlen) args.icbmflags |= AIM_IMFLAGS_HASICON; } else if (type == 0x0009) { args.icbmflags |= AIM_IMFLAGS_BUDDYREQ; } else if (type == 0x0017) { args.extdatalen = length; args.extdata = aimbs_getraw(bs, args.extdatalen); } else { // do_error_dialog(sess->aux_data, "Unknown TLV encountered", "Gaim"); } /* * This is here to protect ourselves from ourselves. That * is, if something above doesn't completly parse its value * section, or, worse, overparses it, this will set the * stream where it needs to be in order to land on the next * TLV when the loop continues. * */ aim_bstream_setpos(bs, endpos); } if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) ret = userfunc(sess, rx, channel, userinfo, &args); aim_mpmsg_free(sess, &args.mpmsg); g_free(args.extdata); return ret; } static void incomingim_ch2_chat_free(aim_session_t *sess, struct aim_incomingim_ch2_args *args) { /* XXX aim_chat_roominfo_free() */ g_free(args->info.chat.roominfo.name); return; } static void incomingim_ch2_chat(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_userinfo_t *userinfo, struct aim_incomingim_ch2_args *args, aim_bstream_t *servdata) { /* * Chat room info. */ if (servdata) aim_chat_readroominfo(servdata, &args->info.chat.roominfo); args->destructor = (void *)incomingim_ch2_chat_free; return; } static void incomingim_ch2_icqserverrelay_free(aim_session_t *sess, struct aim_incomingim_ch2_args *args) { g_free((char *)args->info.rtfmsg.rtfmsg); return; } /* * The relationship between AIM_CAPS_ICQSERVERRELAY and AIM_CAPS_ICQRTF is * kind of odd. This sends the client ICQRTF since that is all that I've seen * SERVERRELAY used for. * * Note that this is all little-endian. Cringe. * * This cap is used for auto status message replies, too [ft] * */ static void incomingim_ch2_icqserverrelay(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_userinfo_t *userinfo, struct aim_incomingim_ch2_args *args, aim_bstream_t *servdata) { guint16 hdrlen, msglen, dc; guint8 msgtype, msgflags; guint8 *plugin; int i = 0, tmp = 0; struct gaim_connection *gc = sess->aux_data; /* at the moment we just can deal with requests, not with cancel or accept */ if (args->status != 0) return; hdrlen = aimbs_getle16(servdata); aim_bstream_advance(servdata, 0x02); /* protocol version */ plugin = aimbs_getraw(servdata, 0x10); /* following data is a message or something plugin specific */ /* as there is no plugin handling, just skip the rest */ aim_bstream_advance(servdata, hdrlen - 0x12); hdrlen = aimbs_getle16(servdata); dc = aimbs_getle16(servdata); /* save the sequence number */ aim_bstream_advance(servdata, hdrlen - 0x02); /* TODO is it a message or something for a plugin? */ for (i = 0; i < 0x10; i++) { tmp |= plugin[i]; } if (!tmp) { /* message follows */ msgtype = aimbs_getle8(servdata); msgflags = aimbs_getle8(servdata); aim_bstream_advance(servdata, 0x04); /* status code and priority code */ msglen = aimbs_getle16(servdata); /* message string length */ args->info.rtfmsg.rtfmsg = aimbs_getstr(servdata, msglen); switch(msgtype) { case AIM_MTYPE_PLAIN: args->info.rtfmsg.fgcolor = aimbs_getle32(servdata); args->info.rtfmsg.bgcolor = aimbs_getle32(servdata); hdrlen = aimbs_getle32(servdata); aim_bstream_advance(servdata, hdrlen); /* XXX This is such a hack. */ args->reqclass = AIM_CAPS_ICQRTF; break; case AIM_MTYPE_AUTOAWAY: case AIM_MTYPE_AUTOBUSY: case AIM_MTYPE_AUTONA: case AIM_MTYPE_AUTODND: case AIM_MTYPE_AUTOFFC: case 0x9c: /* ICQ 5 seems to send this */ aim_send_im_ch2_statusmessage(sess, userinfo->sn, args->cookie, gc->away, sess->aim_icq_state, dc); break; } } /* message or plugin specific */ g_free(plugin); args->destructor = (void *)incomingim_ch2_icqserverrelay_free; return; } typedef void (*ch2_args_destructor_t)(aim_session_t *sess, struct aim_incomingim_ch2_args *args); static int incomingim_ch2(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, guint16 channel, aim_userinfo_t *userinfo, aim_tlvlist_t *tlvlist, guint8 *cookie) { aim_rxcallback_t userfunc; aim_tlv_t *block1, *servdatatlv; aim_tlvlist_t *list2; struct aim_incomingim_ch2_args args; aim_bstream_t bbs, sdbs, *sdbsptr = NULL; guint8 *cookie2; int ret = 0; char clientip1[30] = {""}; char clientip2[30] = {""}; char verifiedip[30] = {""}; memset(&args, 0, sizeof(args)); /* * There's another block of TLVs embedded in the type 5 here. */ block1 = aim_gettlv(tlvlist, 0x0005, 1); aim_bstream_init(&bbs, block1->value, block1->length); /* * First two bytes represent the status of the connection. * * 0 is a request, 1 is a deny (?), 2 is an accept */ args.status = aimbs_get16(&bbs); /* * Next comes the cookie. Should match the ICBM cookie. */ cookie2 = aimbs_getraw(&bbs, 8); if (memcmp(cookie, cookie2, 8) != 0) do_error_dialog(sess->aux_data, "rend: warning cookies don't match!", "Gaim"); memcpy(args.cookie, cookie2, 8); g_free(cookie2); /* * The next 16bytes are a capability block so we can * identify what type of rendezvous this is. */ args.reqclass = aim_getcap(sess, &bbs, 0x10); /* * What follows may be TLVs or nothing, depending on the * purpose of the message. * * Ack packets for instance have nothing more to them. */ list2 = aim_readtlvchain(&bbs); /* * IP address from the perspective of the client. */ if (aim_gettlv(list2, 0x0002, 1)) { aim_tlv_t *iptlv; iptlv = aim_gettlv(list2, 0x0002, 1); g_snprintf(clientip1, sizeof(clientip1), "%d.%d.%d.%d", aimutil_get8(iptlv->value+0), aimutil_get8(iptlv->value+1), aimutil_get8(iptlv->value+2), aimutil_get8(iptlv->value+3)); } /* * Secondary IP address from the perspective of the client. */ if (aim_gettlv(list2, 0x0003, 1)) { aim_tlv_t *iptlv; iptlv = aim_gettlv(list2, 0x0003, 1); g_snprintf(clientip2, sizeof(clientip2), "%d.%d.%d.%d", aimutil_get8(iptlv->value+0), aimutil_get8(iptlv->value+1), aimutil_get8(iptlv->value+2), aimutil_get8(iptlv->value+3)); } /* * Verified IP address (from the perspective of Oscar). * * This is added by the server. */ if (aim_gettlv(list2, 0x0004, 1)) { aim_tlv_t *iptlv; iptlv = aim_gettlv(list2, 0x0004, 1); g_snprintf(verifiedip, sizeof(verifiedip), "%d.%d.%d.%d", aimutil_get8(iptlv->value+0), aimutil_get8(iptlv->value+1), aimutil_get8(iptlv->value+2), aimutil_get8(iptlv->value+3)); } /* * Port number for something. */ if (aim_gettlv(list2, 0x0005, 1)) args.port = aim_gettlv16(list2, 0x0005, 1); /* * Error code. */ if (aim_gettlv(list2, 0x000b, 1)) args.errorcode = aim_gettlv16(list2, 0x000b, 1); /* * Invitation message / chat description. */ if (aim_gettlv(list2, 0x000c, 1)) args.msg = aim_gettlv_str(list2, 0x000c, 1); /* * Character set. */ if (aim_gettlv(list2, 0x000d, 1)) args.encoding = aim_gettlv_str(list2, 0x000d, 1); /* * Language. */ if (aim_gettlv(list2, 0x000e, 1)) args.language = aim_gettlv_str(list2, 0x000e, 1); /* Unknown -- two bytes = 0x0001 */ if (aim_gettlv(list2, 0x000a, 1)) ; /* Unknown -- no value */ if (aim_gettlv(list2, 0x000f, 1)) ; if (strlen(clientip1)) args.clientip = (char *)clientip1; if (strlen(clientip2)) args.clientip2 = (char *)clientip2; if (strlen(verifiedip)) args.verifiedip = (char *)verifiedip; /* * This is must be present in PROPOSALs, but will probably not * exist in CANCELs and ACCEPTs. * * Service Data blocks are module-specific in format. */ if ((servdatatlv = aim_gettlv(list2, 0x2711 /* 10001 */, 1))) { aim_bstream_init(&sdbs, servdatatlv->value, servdatatlv->length); sdbsptr = &sdbs; } if (args.reqclass & AIM_CAPS_ICQSERVERRELAY) incomingim_ch2_icqserverrelay(sess, mod, rx, snac, userinfo, &args, sdbsptr); else if (args.reqclass & AIM_CAPS_CHAT) incomingim_ch2_chat(sess, mod, rx, snac, userinfo, &args, sdbsptr); if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) ret = userfunc(sess, rx, channel, userinfo, &args); if (args.destructor) ((ch2_args_destructor_t)args.destructor)(sess, &args); g_free((char *)args.msg); g_free((char *)args.encoding); g_free((char *)args.language); aim_freetlvchain(&list2); return ret; } static int incomingim_ch4(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, guint16 channel, aim_userinfo_t *userinfo, aim_tlvlist_t *tlvlist, guint8 *cookie) { aim_bstream_t meat; aim_rxcallback_t userfunc; aim_tlv_t *block; struct aim_incomingim_ch4_args args; int ret = 0; /* * Make a bstream for the meaty part. Yum. Meat. */ if (!(block = aim_gettlv(tlvlist, 0x0005, 1))) return -1; aim_bstream_init(&meat, block->value, block->length); args.uin = aimbs_getle32(&meat); args.type = aimbs_getle16(&meat); args.msg = (char *)aimbs_getraw(&meat, aimbs_getle16(&meat)); if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) ret = userfunc(sess, rx, channel, userinfo, &args); g_free(args.msg); return ret; } /* * It can easily be said that parsing ICBMs is THE single * most difficult thing to do in the in AIM protocol. In * fact, I think I just did say that. * * Below is the best damned solution I've come up with * over the past sixteen months of battling with it. This * can parse both away and normal messages from every client * I have access to. Its not fast, its not clean. But it works. * */ static int incomingim(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) { int i, ret = 0; guint8 cookie[8]; guint16 channel; aim_userinfo_t userinfo; memset(&userinfo, 0x00, sizeof(aim_userinfo_t)); /* * Read ICBM Cookie. And throw away. */ for (i = 0; i < 8; i++) cookie[i] = aimbs_get8(bs); /* * Channel ID. * * Channel 0x0001 is the message channel. There are * other channels for things called "rendevous" * which represent chat and some of the other new * features of AIM2/3/3.5. * * Channel 0x0002 is the Rendevous channel, which * is where Chat Invitiations and various client-client * connection negotiations come from. * * Channel 0x0004 is used for ICQ authorization, or * possibly any system notice. * */ channel = aimbs_get16(bs); /* * Extract the standard user info block. * * Note that although this contains TLVs that appear contiguous * with the TLVs read below, they are two different pieces. The * userinfo block contains the number of TLVs that contain user * information, the rest are not even though there is no seperation. * aim_extractuserinfo() returns the number of bytes used by the * userinfo tlvs, so you can start reading the rest of them right * afterward. * * That also means that TLV types can be duplicated between the * userinfo block and the rest of the message, however there should * never be two TLVs of the same type in one block. * */ aim_extractuserinfo(sess, bs, &userinfo); /* * From here on, its depends on what channel we're on. * * Technically all channels have a TLV list have this, however, * for the common channel 1 case, in-place parsing is used for * performance reasons (less memory allocation). */ if (channel == 1) { ret = incomingim_ch1(sess, mod, rx, snac, channel, &userinfo, bs, cookie); } else if (channel == 2) { aim_tlvlist_t *tlvlist; /* * Read block of TLVs (not including the userinfo data). All * further data is derived from what is parsed here. */ tlvlist = aim_readtlvchain(bs); ret = incomingim_ch2(sess, mod, rx, snac, channel, &userinfo, tlvlist, cookie); aim_freetlvchain(&tlvlist); } else if (channel == 4) { aim_tlvlist_t *tlvlist; tlvlist = aim_readtlvchain(bs); ret = incomingim_ch4(sess, mod, rx, snac, channel, &userinfo, tlvlist, cookie); aim_freetlvchain(&tlvlist); } else { do_error_dialog(sess->aux_data, "ICBM received on an unsupported channel. Ignoring.", "Gaim"); return 0; } return ret; } /* * Possible codes: * AIM_TRANSFER_DENY_NOTSUPPORTED -- "client does not support" * AIM_TRANSFER_DENY_DECLINE -- "client has declined transfer" * AIM_TRANSFER_DENY_NOTACCEPTING -- "client is not accepting transfers" * */ int aim_denytransfer(aim_session_t *sess, const char *sender, const guint8 *cookie, guint16 code) { aim_conn_t *conn; aim_frame_t *fr; aim_snacid_t snacid; aim_tlvlist_t *tl = NULL; if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) return -EINVAL; if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+8+2+1+strlen(sender)+6))) return -ENOMEM; snacid = aim_cachesnac(sess, 0x0004, 0x000b, 0x0000, NULL, 0); aim_putsnac(&fr->data, 0x0004, 0x000b, 0x0000, snacid); aimbs_putraw(&fr->data, cookie, 8); aimbs_put16(&fr->data, 0x0002); /* channel */ aimbs_put8(&fr->data, strlen(sender)); aimbs_putraw(&fr->data, (guint8 *)sender, strlen(sender)); aim_addtlvtochain16(&tl, 0x0003, code); aim_writetlvchain(&fr->data, &tl); aim_freetlvchain(&tl); aim_tx_enqueue(sess, fr); return 0; } /* * aim_reqicbmparaminfo() * * Request ICBM parameter information. * */ int aim_reqicbmparams(aim_session_t *sess) { aim_conn_t *conn; if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) return -EINVAL; return aim_genericreq_n(sess, conn, 0x0004, 0x0004); } /* * * I definitly recommend sending this. If you don't, you'll be stuck * with the rather unreasonable defaults. You don't want those. Send this. * */ int aim_seticbmparam(aim_session_t *sess, struct aim_icbmparameters *params) { aim_conn_t *conn; aim_frame_t *fr; aim_snacid_t snacid; if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0004))) return -EINVAL; if (!params) return -EINVAL; if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+16))) return -ENOMEM; snacid = aim_cachesnac(sess, 0x0004, 0x0002, 0x0000, NULL, 0); aim_putsnac(&fr->data, 0x0004, 0x0002, 0x0000, snacid); /* This is read-only (see Parameter Reply). Must be set to zero here. */ aimbs_put16(&fr->data, 0x0000); /* These are all read-write */ aimbs_put32(&fr->data, params->flags); aimbs_put16(&fr->data, params->maxmsglen); aimbs_put16(&fr->data, params->maxsenderwarn); aimbs_put16(&fr->data, params->maxrecverwarn); aimbs_put32(&fr->data, params->minmsginterval); aim_tx_enqueue(sess, fr); return 0; } static int paraminfo(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) { struct aim_icbmparameters params; aim_rxcallback_t userfunc; params.maxchan = aimbs_get16(bs); params.flags = aimbs_get32(bs); params.maxmsglen = aimbs_get16(bs); params.maxsenderwarn = aimbs_get16(bs); params.maxrecverwarn = aimbs_get16(bs); params.minmsginterval = aimbs_get32(bs); if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) return userfunc(sess, rx, &params); return 0; } static int missedcall(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) { int ret = 0; aim_rxcallback_t userfunc; guint16 channel, nummissed, reason; aim_userinfo_t userinfo; while (aim_bstream_empty(bs)) { channel = aimbs_get16(bs); aim_extractuserinfo(sess, bs, &userinfo); nummissed = aimbs_get16(bs); reason = aimbs_get16(bs); if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) ret = userfunc(sess, rx, channel, &userinfo, nummissed, reason); } return ret; } /* * Receive the response from an ICQ status message request. This contains the * ICQ status message. Go figure. */ static int clientautoresp(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) { int ret = 0; aim_rxcallback_t userfunc; guint16 channel, reason; char *sn; guint8 *ck, snlen; ck = aimbs_getraw(bs, 8); channel = aimbs_get16(bs); snlen = aimbs_get8(bs); sn = aimbs_getstr(bs, snlen); reason = aimbs_get16(bs); switch (reason) { case 0x0003: { /* ICQ status message. Maybe other stuff too, you never know with these people. */ guint8 statusmsgtype, *msg; guint16 len; guint32 state; len = aimbs_getle16(bs); /* Should be 0x001b */ aim_bstream_advance(bs, len); /* Unknown */ len = aimbs_getle16(bs); /* Should be 0x000e */ aim_bstream_advance(bs, len); /* Unknown */ statusmsgtype = aimbs_getle8(bs); switch (statusmsgtype) { case 0xe8: state = AIM_ICQ_STATE_AWAY; break; case 0xe9: state = AIM_ICQ_STATE_AWAY | AIM_ICQ_STATE_BUSY; break; case 0xea: state = AIM_ICQ_STATE_AWAY | AIM_ICQ_STATE_OUT; break; case 0xeb: state = AIM_ICQ_STATE_AWAY | AIM_ICQ_STATE_DND | AIM_ICQ_STATE_BUSY; break; case 0xec: state = AIM_ICQ_STATE_CHAT; break; default: state = 0; break; } aimbs_getle8(bs); /* Unknown - 0x03 Maybe this means this is an auto-reply */ aimbs_getle16(bs); /* Unknown - 0x0000 */ aimbs_getle16(bs); /* Unknown - 0x0000 */ len = aimbs_getle16(bs); msg = aimbs_getraw(bs, len); if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) ret = userfunc(sess, rx, channel, sn, reason, state, msg); g_free(msg); } break; default: { if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) ret = userfunc(sess, rx, channel, sn, reason); } break; } /* end switch */ g_free(ck); g_free(sn); return ret; } static int msgack(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) { aim_rxcallback_t userfunc; guint16 type; guint8 snlen, *ck; char *sn; int ret = 0; ck = aimbs_getraw(bs, 8); type = aimbs_get16(bs); snlen = aimbs_get8(bs); sn = aimbs_getstr(bs, snlen); if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) ret = userfunc(sess, rx, type, sn); g_free(sn); g_free(ck); return ret; } /* * Subtype 0x0014 - Send a mini typing notification (mtn) packet. * * This is supported by winaim5 and newer, MacAIM bleh and newer, iChat bleh and newer, * and Gaim 0.60 and newer. * */ int aim_im_sendmtn(aim_session_t *sess, guint16 type1, const char *sn, guint16 type2) { aim_conn_t *conn; aim_frame_t *fr; aim_snacid_t snacid; if (!sess || !(conn = aim_conn_findbygroup(sess, 0x0002))) return -EINVAL; if (!sn) return -EINVAL; if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+11+strlen(sn)+2))) return -ENOMEM; snacid = aim_cachesnac(sess, 0x0004, 0x0014, 0x0000, NULL, 0); aim_putsnac(&fr->data, 0x0004, 0x0014, 0x0000, snacid); /* * 8 days of light * Er, that is to say, 8 bytes of 0's */ aimbs_put16(&fr->data, 0x0000); aimbs_put16(&fr->data, 0x0000); aimbs_put16(&fr->data, 0x0000); aimbs_put16(&fr->data, 0x0000); /* * Type 1 (should be 0x0001 for mtn) */ aimbs_put16(&fr->data, type1); /* * Dest sn */ aimbs_put8(&fr->data, strlen(sn)); aimbs_putraw(&fr->data, (const guint8*)sn, strlen(sn)); /* * Type 2 (should be 0x0000, 0x0001, or 0x0002 for mtn) */ aimbs_put16(&fr->data, type2); aim_tx_enqueue(sess, fr); return 0; } /* * Subtype 0x0014 - Receive a mini typing notification (mtn) packet. * * This is supported by winaim5 and newer, MacAIM bleh and newer, iChat bleh and newer, * and Gaim 0.60 and newer. * */ static int mtn_receive(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) { int ret = 0; aim_rxcallback_t userfunc; char *sn; guint8 snlen; guint16 type1, type2; aim_bstream_advance(bs, 8); /* Unknown - All 0's */ type1 = aimbs_get16(bs); snlen = aimbs_get8(bs); sn = aimbs_getstr(bs, snlen); type2 = aimbs_get16(bs); if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) ret = userfunc(sess, rx, type1, sn, type2); g_free(sn); return ret; } static int snachandler(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) { if (snac->subtype == 0x0005) return paraminfo(sess, mod, rx, snac, bs); else if (snac->subtype == 0x0006) return outgoingim(sess, mod, rx, snac, bs); else if (snac->subtype == 0x0007) return incomingim(sess, mod, rx, snac, bs); else if (snac->subtype == 0x000a) return missedcall(sess, mod, rx, snac, bs); else if (snac->subtype == 0x000b) return clientautoresp(sess, mod, rx, snac, bs); else if (snac->subtype == 0x000c) return msgack(sess, mod, rx, snac, bs); else if (snac->subtype == 0x0014) return mtn_receive(sess, mod, rx, snac, bs); return 0; } int msg_modfirst(aim_session_t *sess, aim_module_t *mod) { mod->family = 0x0004; mod->version = 0x0001; mod->toolid = 0x0110; mod->toolversion = 0x0629; mod->flags = 0; strncpy(mod->name, "messaging", sizeof(mod->name)); mod->snachandler = snachandler; return 0; }


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