src/chatnav.c

   1 /*
   2  * Handle ChatNav.
   3  *
   4  * [The ChatNav(igation) service does various things to keep chat
   5  *  alive.  It provides room information, room searching and creating,
   6  *  as well as giving users the right ("permission") to use chat.]
   7  *
   8  */
   9
  10 #define FAIM_INTERNAL
  11 #include <aim.h>
  12
  13 /*
  14  * conn must be a chatnav connection!
  15  */
  16 faim_export unsigned long aim_chatnav_reqrights(struct aim_session_t *sess,
  17                                                 struct aim_conn_t *conn)
  18 {
  19   aim_genericreq_n(sess, conn, 0x000d, 0x0002);
  20
  21   return sess->snac_nextid;
  22 }
  23
  24 faim_export unsigned long aim_chatnav_clientready(struct aim_session_t *sess,
  25                                                   struct aim_conn_t *conn)
  26 {
  27   struct command_tx_struct *newpacket;
  28   int i;
  29
  30   if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 0x20)))
  31     return -1;
  32
  33   newpacket->lock = 1;
  34
  35   i = aim_putsnac(newpacket->data, 0x0001, 0x0002, 0x0000, sess->snac_nextid);
  36
  37   i+= aimutil_put16(newpacket->data+i, 0x000d);
  38   i+= aimutil_put16(newpacket->data+i, 0x0001);
  39
  40   i+= aimutil_put16(newpacket->data+i, 0x0004);
  41   i+= aimutil_put16(newpacket->data+i, 0x0001);
  42
  43   i+= aimutil_put16(newpacket->data+i, 0x0001);
  44   i+= aimutil_put16(newpacket->data+i, 0x0003);
  45
  46   i+= aimutil_put16(newpacket->data+i, 0x0004);
  47   i+= aimutil_put16(newpacket->data+i, 0x0686);
  48
  49   aim_tx_enqueue(sess, newpacket);
  50
  51   return (sess->snac_nextid++);
  52 }
  53
  54 /*
  55  * Since multiple things can trigger this callback,
  56  * we must lookup the snacid to determine the original
  57  * snac subtype that was called.
  58  */
  59 faim_internal int aim_chatnav_parse_info(struct aim_session_t *sess, struct command_rx_struct *command)
  60 {
  61   struct aim_snac_t *snac;
  62   u_long snacid;
  63   rxcallback_t userfunc;
  64   int ret=1;
  65
  66   snacid = aimutil_get32(command->data+6);
  67   snac = aim_remsnac(sess, snacid);
  68
  69   if (!snac) {
  70     faimdprintf(sess, 0, "faim: chatnav_parse_info: received response to unknown request! (%08lx)\n", snacid);
  71     return 1;
  72   }
  73
  74   if (snac->family != 0x000d) {
  75     faimdprintf(sess, 0, "faim: chatnav_parse_info: recieved response that maps to corrupt request! (fam=%04x)\n", snac->family);
  76     return 1;
  77   }
  78
  79   /*
  80    * We now know what the original SNAC subtype was.
  81    */
  82   switch(snac->type)
  83     {
  84     case 0x0002: /* request chat rights */
  85       {
  86           struct aim_tlvlist_t *tlvlist;
  87           struct aim_chat_exchangeinfo *exchanges = NULL;
  88           int curexchange = 0;
  89           struct aim_tlv_t *exchangetlv;
  90           u_char maxrooms = 0;
  91           struct aim_tlvlist_t *innerlist;
  92
  93           tlvlist = aim_readtlvchain(command->data+10, command->commandlen-10);
  94
  95           /*
  96            * Type 0x0002: Maximum concurrent rooms.
  97            */
  98           if (aim_gettlv(tlvlist, 0x0002, 1))
  99             maxrooms = aim_gettlv8(tlvlist, 0x0002, 1);
 100
 101           /*
 102            * Type 0x0003: Exchange information
 103            *
 104            * There can be any number of these, each one
 105            * representing another exchange.
 106            *
 107            */
 108           curexchange = 0;
 109           while ((exchangetlv = aim_gettlv(tlvlist, 0x0003, curexchange+1)))
 110             {
 111               curexchange++;
 112               exchanges = realloc(exchanges, curexchange * sizeof(struct aim_chat_exchangeinfo));
 113
 114
 115               /* exchange number */
 116               exchanges[curexchange-1].number = aimutil_get16(exchangetlv->value);
 117               innerlist = aim_readtlvchain(exchangetlv->value+2, exchangetlv->length-2);
 118
 119               /*
 120                * Type 0x000d: Unknown.
 121                */
 122               if (aim_gettlv(innerlist, 0x000d, 1))
 123                 ;
 124
 125               /*
 126                * Type 0x0004: Unknown
 127                */
 128               if (aim_gettlv(innerlist, 0x0004, 1))
 129                 ;
 130
 131               /*
 132                * Type 0x0002: Unknown
 133                */
 134               if (aim_gettlv(innerlist, 0x0002, 1)) {
 135                 unsigned short classperms;
 136
 137                 classperms = aim_gettlv16(innerlist, 0x0002, 1);
 138
 139                 faimdprintf(sess, 1, "faim: class permissions %x\n", classperms);
 140               }
 141
 142               /*
 143                * Type 0x00c9: Unknown
 144                */
 145               if (aim_gettlv(innerlist, 0x00c9, 1))
 146                 ;
 147
 148               /*
 149                * Type 0x00ca: Creation Date
 150                */
 151               if (aim_gettlv(innerlist, 0x00ca, 1))
 152                 ;
 153
 154               /*
 155                * Type 0x00d0: Mandatory Channels?
 156                */
 157               if (aim_gettlv(innerlist, 0x00d0, 1))
 158                 ;
 159
 160               /*
 161                * Type 0x00d1: Maximum Message length
 162                */
 163               if (aim_gettlv(innerlist, 0x00d1, 1))
 164                 ;
 165
 166               /*
 167                * Type 0x00d2: Maximum Occupancy?
 168                */
 169               if (aim_gettlv(innerlist, 0x00d2, 1))
 170                 ;
 171
 172               /*
 173                * Type 0x00d3: Exchange Name
 174                */
 175               if (aim_gettlv(innerlist, 0x00d3, 1))
 176                 exchanges[curexchange-1].name = aim_gettlv_str(innerlist, 0x00d3, 1);
 177               else
 178                 exchanges[curexchange-1].name = NULL;
 179
 180               /*
 181                * Type 0x00d5: Creation Permissions
 182                *
 183                * 0  Creation not allowed
 184                * 1  Room creation allowed
 185                * 2  Exchange creation allowed
 186                *
 187                */
 188               if (aim_gettlv(innerlist, 0x00d5, 1)) {
 189                 unsigned char createperms;
 190
 191                 createperms = aim_gettlv8(innerlist, 0x00d5, 1);
 192               }
 193
 194               /*
 195                * Type 0x00d6: Character Set (First Time)
 196                */
 197               if (aim_gettlv(innerlist, 0x00d6, 1))
 198                 exchanges[curexchange-1].charset1 = aim_gettlv_str(innerlist, 0x00d6, 1);
 199               else
 200                 exchanges[curexchange-1].charset1 = NULL;
 201
 202               /*
 203                * Type 0x00d7: Language (First Time)
 204                */
 205               if (aim_gettlv(innerlist, 0x00d7, 1))
 206                 exchanges[curexchange-1].lang1 = aim_gettlv_str(innerlist, 0x00d7, 1);
 207               else
 208                 exchanges[curexchange-1].lang1 = NULL;
 209
 210               /*
 211                * Type 0x00d8: Character Set (Second Time)
 212                */
 213               if (aim_gettlv(innerlist, 0x00d8, 1))
 214                 exchanges[curexchange-1].charset2 = aim_gettlv_str(innerlist, 0x00d8, 1);
 215               else
 216                 exchanges[curexchange-1].charset2 = NULL;
 217
 218               /*
 219                * Type 0x00d9: Language (Second Time)
 220                */
 221               if (aim_gettlv(innerlist, 0x00d9, 1))
 222                 exchanges[curexchange-1].lang2 = aim_gettlv_str(innerlist, 0x00d9, 1);
 223               else
 224                 exchanges[curexchange-1].lang2 = NULL;
 225
 226               aim_freetlvchain(&innerlist);
 227             }
 228
 229           /*
 230            * Call client.
 231            */
 232           if ((userfunc = aim_callhandler(sess, command->conn, 0x000d, 0x0009)))
 233             ret = userfunc(sess, command, snac->type, maxrooms, curexchange, exchanges);
 234           curexchange--;
 235           while(curexchange >= 0)
 236             {
 237               if (exchanges[curexchange].name)
 238                 free(exchanges[curexchange].name);
 239               if (exchanges[curexchange].charset1)
 240                 free(exchanges[curexchange].charset1);
 241               if (exchanges[curexchange].lang1)
 242                 free(exchanges[curexchange].lang1);
 243               if (exchanges[curexchange].charset2)
 244                 free(exchanges[curexchange].charset2);
 245               if (exchanges[curexchange].lang2)
 246                 free(exchanges[curexchange].lang2);
 247               curexchange--;
 248             }
 249           free(exchanges);
 250           aim_freetlvchain(&tlvlist);
 251
 252           break;
 253       }
 254     case 0x0003: /* request exchange info */
 255       faimdprintf(sess, 0, "chatnav_parse_info: resposne to exchange info\n");
 256       break;
 257     case 0x0004: /* request room info */
 258        faimdprintf(sess, 0, "chatnav_parse_info: response to room info\n");
 259       break;
 260     case 0x0005: /* request more room info */
 261        faimdprintf(sess, 0, "chatnav_parse_info: response to more room info\n");
 262       break;
 263     case 0x0006: /* request occupant list */
 264        faimdprintf(sess, 0, "chatnav_parse_info: response to occupant info\n");
 265       break;
 266     case 0x0007: /* search for a room */
 267        faimdprintf(sess, 0, "chatnav_parse_info: search results\n");
 268       break;
 269     case 0x0008: { /* create room */
 270       /*
 271         000d 0009 0000 0000 0010
 272
 273         0004 0053
 274              0004 -- exchange
 275              0c 7a 6f6f 6f6d 7a6f 6f6f 6d34 32 cookie/name
 276              0000 -- instance
 277              02 -- detail level
 278              0007 -- unknown!
 279              006a 000c 7a 6f 6f6f 6d7a 6f6f 6f6d 3432 -- fully qualified name
 280              00c9 0002 0011 -- flags
 281              00ca 0004 39c0 0883 -- create time
 282              00d1 0002 0200 -- max msg len
 283              00d2 0002 0018 -- max occupants
 284              00d3 000c -- name
 285                   7a6f 6f6f 6d7a 6f6f 6f6d 3432
 286              00d5 0001 02 -- creation permission
 287        */
 288       struct aim_tlvlist_t *tlvlist, *innerlist;
 289       char *ck = NULL, *fqcn = NULL, *name = NULL;
 290       unsigned short exchange = 0, instance = 0, unknown = 0, flags = 0, maxmsglen = 0, maxoccupancy = 0;
 291       unsigned long createtime = 0;
 292       unsigned char createperms = 0;
 293       int i, cklen;
 294       struct aim_tlv_t *bigblock;
 295
 296       i = 10;
 297       if (!(tlvlist = aim_readtlvchain(command->data+i, command->commandlen-i))) {
 298         faimdprintf(sess, 0, "unable to read top tlv in create room response\n");
 299         break;
 300       }
 301
 302       if (!(bigblock = aim_gettlv(tlvlist, 0x0004, 1))) {
 303         faimdprintf(sess, 0, "no bigblock in top tlv in create room response\n");
 304         aim_freetlvchain(&tlvlist);
 305         break;
 306       }
 307       i = 0;
 308
 309       exchange = aimutil_get16(bigblock->value+i);
 310       i += 2;
 311
 312       cklen = aimutil_get8(bigblock->value+i);
 313       i++;
 314
 315       ck = malloc(cklen+1);
 316       memcpy(ck, bigblock->value+i, cklen);
 317       ck[cklen] = '\0';
 318       i += cklen;
 319
 320       instance = aimutil_get16(bigblock->value+i);
 321       i += 2;
 322
 323       if (aimutil_get8(bigblock->value+i) != 0x02) {
 324          faimdprintf(sess, 0, "unknown detaillevel in create room response (0x%02x)\n", aimutil_get8(bigblock->value+i));
 325         aim_freetlvchain(&tlvlist);
 326         free(ck);
 327         break;
 328       }
 329       i += 1;
 330
 331       unknown = aimutil_get16(bigblock->value+i);
 332       i += 2;
 333
 334       if (!(innerlist = aim_readtlvchain(bigblock->value+i, bigblock->length-i))) {
 335         faimdprintf(sess, 0, "unable to read inner tlv chain in create room response\n");
 336         aim_freetlvchain(&tlvlist);
 337         free(ck);
 338         break;
 339       }
 340
 341       if (aim_gettlv(innerlist, 0x006a, 1))
 342         fqcn = aim_gettlv_str(innerlist, 0x006a, 1);
 343
 344       if (aim_gettlv(innerlist, 0x00c9, 1))
 345         flags = aim_gettlv16(innerlist, 0x00c9, 1);
 346
 347       if (aim_gettlv(innerlist, 0x00ca, 1))
 348         createtime = aim_gettlv32(innerlist, 0x00ca, 1);
 349
 350       if (aim_gettlv(innerlist, 0x00d1, 1))
 351         maxmsglen = aim_gettlv16(innerlist, 0x00d1, 1);
 352
 353       if (aim_gettlv(innerlist, 0x00d2, 1))
 354         maxoccupancy = aim_gettlv16(innerlist, 0x00d2, 1);
 355
 356       if (aim_gettlv(innerlist, 0x00d3, 1))
 357         name = aim_gettlv_str(innerlist, 0x00d3, 1);
 358
 359       if (aim_gettlv(innerlist, 0x00d5, 1))
 360         createperms = aim_gettlv8(innerlist, 0x00d5, 1);
 361
 362       if ((userfunc = aim_callhandler(sess, command->conn, 0x000d, 0x0009))) {
 363         ret = userfunc(sess, command, snac->type, fqcn, instance, exchange, flags, createtime, maxmsglen, maxoccupancy, createperms, unknown, name, ck);
 364       }
 365
 366       if (ck)
 367         free(ck);
 368       if (name)
 369         free(name);
 370       if (fqcn)
 371         free(fqcn);
 372       aim_freetlvchain(&innerlist);
 373       aim_freetlvchain(&tlvlist);
 374
 375       break;
 376     }
 377     default: /* unknown */
 378       faimdprintf(sess, 0, "chatnav_parse_info: unknown request subtype (%04x)\n", snac->type);
 379     }
 380
 381   if (snac && snac->data)
 382     free(snac->data);
 383   if (snac)
 384     free(snac);
 385
 386   return ret;
 387 }
 388
 389 faim_export unsigned long aim_chatnav_createroom(struct aim_session_t *sess,
 390                                                  struct aim_conn_t *conn,
 391                                                  char *name,
 392                                                  u_short exchange)
 393 {
 394   struct command_tx_struct *newpacket;
 395   int i;
 396
 397   if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+12+strlen("invite")+strlen(name))))
 398     return -1;
 399
 400   newpacket->lock = 1;
 401
 402   i = aim_putsnac(newpacket->data, 0x000d, 0x0008, 0x0000, sess->snac_nextid);
 403
 404   /* exchange */
 405   i+= aimutil_put16(newpacket->data+i, exchange);
 406
 407   /* room cookie */
 408   i+= aimutil_put8(newpacket->data+i, strlen("invite"));
 409   i+= aimutil_putstr(newpacket->data+i, "invite", strlen("invite"));
 410
 411   /* instance */
 412   i+= aimutil_put16(newpacket->data+i, 0xffff);
 413
 414   /* detail level */
 415   i+= aimutil_put8(newpacket->data+i, 0x01);
 416
 417   /* tlvcount */
 418   i+= aimutil_put16(newpacket->data+i, 0x0001);
 419
 420   /* room name */
 421   i+= aim_puttlv_str(newpacket->data+i, 0x00d3, strlen(name), name);
 422
 423   aim_cachesnac(sess, 0x000d, 0x0008, 0x0000, NULL, 0);
 424
 425   aim_tx_enqueue(sess, newpacket);
 426
 427   return sess->snac_nextid;
 428 }