apps/irssi/src/silc/core/silc-servers.c

   1 /*
   2   silc-server.c : irssi
   3
   4   Copyright (C) 2000 - 2003 Timo Sirainen
   5                             Pekka Riikonen <priikone@silcnet.org>
   6
   7   This program is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU General Public License as published by
   9   the Free Software Foundation; either version 2 of the License, or
  10   (at your option) any later version.
  11
  12   This program is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15   GNU General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License
  18   along with this program; if not, write to the Free Software
  19   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20 */
  21
  22 #include "module.h"
  23
  24 #include "net-nonblock.h"
  25 #include "net-sendbuffer.h"
  26 #include "signals.h"
  27 #include "servers.h"
  28 #include "commands.h"
  29 #include "levels.h"
  30 #include "modules.h"
  31 #include "rawlog.h"
  32 #include "misc.h"
  33 #include "settings.h"
  34
  35 #include "servers-setup.h"
  36
  37 #include "silc-servers.h"
  38 #include "silc-channels.h"
  39 #include "silc-queries.h"
  40 #include "silc-nicklist.h"
  41 #include "window-item-def.h"
  42
  43 #include "fe-common/core/printtext.h"
  44 #include "fe-common/core/fe-channels.h"
  45 #include "fe-common/core/keyboard.h"
  46 #include "fe-common/silc/module-formats.h"
  47
  48 #include "silc-commands.h"
  49
  50 void silc_servers_reconnect_init(void);
  51 void silc_servers_reconnect_deinit(void);
  52
  53 static int silc_send_channel(SILC_SERVER_REC *server,
  54                               char *channel, char *msg,
  55                               SilcMessageFlags flags)
  56 {
  57   SILC_CHANNEL_REC *rec;
  58
  59   rec = silc_channel_find(server, channel);
  60   if (rec == NULL || rec->entry == NULL) {
  61     cmd_return_error_value(CMDERR_NOT_JOINED, FALSE);
  62   }
  63
  64   silc_client_send_channel_message(silc_client, server->conn, rec->entry,
  65                                    NULL, flags, msg, strlen(msg), TRUE);
  66   return TRUE;
  67 }
  68
  69 typedef struct {
  70   char *nick;
  71   char *msg;
  72   int len;
  73   SilcMessageFlags flags;
  74   SILC_SERVER_REC *server;
  75 } PRIVMSG_REC;
  76
  77 /* Callback function that sends the private message if the client was
  78    resolved from the server. */
  79
  80 static void silc_send_msg_clients(SilcClient client,
  81                                   SilcClientConnection conn,
  82                                   SilcClientEntry *clients,
  83                                   SilcUInt32 clients_count,
  84                                   void *context)
  85 {
  86   PRIVMSG_REC *rec = context;
  87   SILC_SERVER_REC *server = rec->server;
  88   SilcClientEntry target;
  89   char *nickname = NULL;
  90
  91   if (!clients_count) {
  92     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR,
  93               "%s: There is no such client", rec->nick);
  94   } else {
  95     if (clients_count > 1) {
  96       silc_parse_userfqdn(rec->nick, &nickname, NULL);
  97
  98       /* Find the correct one. The rec->nick might be a formatted nick
  99          so this will find the correct one. */
 100       clients = silc_client_get_clients_local(silc_client, server->conn,
 101                                               nickname, rec->nick,
 102                                               &clients_count);
 103       if (!clients) {
 104         printtext(NULL, NULL, MSGLEVEL_CLIENTERROR,
 105                   "%s: There is no such client", rec->nick);
 106         silc_free(nickname);
 107         goto out;
 108       }
 109       silc_free(nickname);
 110     }
 111
 112     target = clients[0];
 113
 114     /* Still check for exact math for nickname, this compares the
 115        real (formatted) nickname and the nick (maybe formatted) that
 116        use gave. This is to assure that `nick' does not match
 117        `nick@host'. */
 118     if (strcasecmp(rec->nick, clients[0]->nickname)) {
 119       printtext(NULL, NULL, MSGLEVEL_CLIENTERROR,
 120                 "%s: There is no such client", rec->nick);
 121       goto out;
 122     }
 123
 124     /* Send the private message */
 125     silc_client_send_private_message(client, conn, target,
 126                                      rec->flags,
 127                                      rec->msg, rec->len,
 128                                      TRUE);
 129   }
 130
 131  out:
 132   g_free(rec->nick);
 133   g_free(rec->msg);
 134   g_free(rec);
 135 }
 136
 137 static int silc_send_msg(SILC_SERVER_REC *server, char *nick, char *msg,
 138                           int msg_len, SilcMessageFlags flags)
 139 {
 140   PRIVMSG_REC *rec;
 141   SilcClientEntry *clients;
 142   SilcUInt32 clients_count;
 143   char *nickname = NULL;
 144
 145   if (!silc_parse_userfqdn(nick, &nickname, NULL)) {
 146     printformat_module("fe-common/silc", server, NULL,
 147                        MSGLEVEL_CRAP, SILCTXT_BAD_NICK, nick);
 148     return FALSE;
 149   }
 150
 151   /* Find client entry */
 152   clients = silc_client_get_clients_local(silc_client, server->conn,
 153                                           nickname, nick, &clients_count);
 154   if (!clients) {
 155     rec = g_new0(PRIVMSG_REC, 1);
 156     rec->nick = g_strdup(nick);
 157     rec->msg = g_strdup(msg);
 158     rec->server = server;
 159     rec->flags = flags;
 160     rec->len = msg_len;
 161
 162     /* Could not find client with that nick, resolve it from server. */
 163     silc_client_get_clients(silc_client, server->conn,
 164                             nickname, NULL, silc_send_msg_clients, rec);
 165     silc_free(nickname);
 166     return FALSE;
 167   }
 168
 169   /* Send the private message directly */
 170   silc_free(nickname);
 171   silc_client_send_private_message(silc_client, server->conn,
 172                                    clients[0], flags,
 173                                    msg, msg_len, TRUE);
 174   return TRUE;
 175 }
 176
 177 void silc_send_mime(SILC_SERVER_REC *server, WI_ITEM_REC *to,
 178                     const char *data,
 179                     const char *enc, const char *type)
 180 {
 181   SILC_CHANNEL_REC *channel;
 182   QUERY_REC *query;
 183   char *unescaped_data;
 184   SilcUInt32 unescaped_data_len;
 185   char *mime_data;
 186   int mime_data_len;
 187
 188   if (!(IS_SILC_SERVER(server)) || (data == NULL) || (to == NULL) ||
 189       (enc == NULL) || (type == NULL))
 190     return;
 191
 192   unescaped_data = silc_unescape_data(data, &unescaped_data_len);
 193
 194 #define SILC_MIME_HEADER "MIME-Version: 1.0\r\nContent-Type: %s\r\nContent-Transfer-Encoding: %s\r\n\r\n"
 195
 196   mime_data_len = unescaped_data_len + strlen(SILC_MIME_HEADER) - 4
 197     + strlen(enc) + strlen(type);
 198   if (mime_data_len >= SILC_PACKET_MAX_LEN)
 199     return;
 200
 201   /* we risk to large packets here... */
 202   mime_data = silc_calloc(mime_data_len, sizeof(*mime_data));
 203   snprintf(mime_data, mime_data_len, SILC_MIME_HEADER, type, enc);
 204   memmove(mime_data + strlen(SILC_MIME_HEADER) - 4 + strlen(enc) + strlen(type),
 205           unescaped_data, unescaped_data_len);
 206
 207 #undef SILC_MIME_HEADER
 208
 209   if (IS_SILC_CHANNEL(to)) {
 210     channel = SILC_CHANNEL(to);
 211     silc_client_send_channel_message(silc_client, server->conn, channel->entry,
 212                                      NULL, SILC_MESSAGE_FLAG_DATA,
 213                                      mime_data, mime_data_len, TRUE);
 214   } else if (IS_SILC_QUERY(to)) {
 215     query = SILC_QUERY(to);
 216     silc_send_msg(server, query->name, mime_data, mime_data_len,
 217                   SILC_MESSAGE_FLAG_DATA);
 218
 219   }
 220
 221   silc_free(mime_data);
 222   silc_free(unescaped_data);
 223 }
 224
 225 static int isnickflag_func(char flag)
 226 {
 227   return flag == '@' || flag == '+';
 228 }
 229
 230 static int ischannel_func(SERVER_REC *server, const char *data)
 231 {
 232   return FALSE;
 233 }
 234
 235 const char *get_nick_flags(void)
 236 {
 237   return "@\0\0";
 238 }
 239
 240 static void send_message(SILC_SERVER_REC *server, char *target,
 241                          char *msg, int target_type)
 242 {
 243   char *message = NULL;
 244   int len;
 245
 246   g_return_if_fail(server != NULL);
 247   g_return_if_fail(target != NULL);
 248   g_return_if_fail(msg != NULL);
 249
 250   if (!silc_term_utf8()) {
 251     len = silc_utf8_encoded_len(msg, strlen(msg), SILC_STRING_LANGUAGE);
 252     message = silc_calloc(len + 1, sizeof(*message));
 253     g_return_if_fail(message != NULL);
 254     silc_utf8_encode(msg, strlen(msg), SILC_STRING_LANGUAGE, message, len);
 255   }
 256
 257   if (target_type == SEND_TARGET_CHANNEL)
 258     silc_send_channel(server, target, message ? message : msg,
 259                       SILC_MESSAGE_FLAG_UTF8);
 260   else
 261     silc_send_msg(server, target, message ? message : msg,
 262                   message ? strlen(message) : strlen(msg),
 263                   SILC_MESSAGE_FLAG_UTF8);
 264
 265   silc_free(message);
 266 }
 267
 268 void silc_send_heartbeat(SilcSocketConnection sock,
 269                          void *hb_context)
 270 {
 271   SILC_SERVER_REC *server = SILC_SERVER(hb_context);
 272
 273   if (server == NULL)
 274     return;
 275
 276   silc_client_send_packet(silc_client, server->conn, SILC_PACKET_HEARTBEAT,
 277                           NULL, 0);
 278 }
 279
 280 static void sig_connected(SILC_SERVER_REC *server)
 281 {
 282   SilcClientConnection conn;
 283   SilcClientConnectionParams params;
 284   char file[256];
 285   int fd;
 286
 287   if (!IS_SILC_SERVER(server))
 288     return;
 289
 290   /* Try to read detached session data and use it if found. */
 291   memset(&params, 0, sizeof(params));
 292   memset(file, 0, sizeof(file));
 293   snprintf(file, sizeof(file) - 1, "%s/session", get_irssi_dir());
 294   params.detach_data = silc_file_readfile(file, &params.detach_data_len);
 295   if (params.detach_data)
 296     params.detach_data[params.detach_data_len] = 0;
 297
 298   /* Add connection to the client library */
 299   conn = silc_client_add_connection(silc_client, &params,
 300                                     server->connrec->address,
 301                                     server->connrec->port,
 302                                     server);
 303   server->conn = conn;
 304
 305   if (params.detach_data)
 306     keyboard_entry_redirect(NULL,
 307                             "-- Resuming old session, may take a while ...",
 308                             ENTRY_REDIRECT_FLAG_HIDDEN, server);
 309
 310   silc_free(params.detach_data);
 311   unlink(file);
 312
 313   fd = g_io_channel_unix_get_fd(net_sendbuffer_handle(server->handle));
 314
 315   /* Start key exchange with the server */
 316   silc_client_start_key_exchange(silc_client, conn, fd);
 317
 318   /* Put default attributes */
 319   silc_query_attributes_default(silc_client, conn);
 320
 321   /* initialize heartbeat sending */
 322   if (settings_get_int("heartbeat") > 0)
 323     silc_socket_set_heartbeat(conn->sock, settings_get_int("heartbeat"),
 324                                 (void *)server,
 325                                 (SilcSocketConnectionHBCb)silc_send_heartbeat,
 326                                 silc_client->schedule);
 327
 328   server->ftp_sessions = silc_dlist_init();
 329   server->isnickflag = isnickflag_func;
 330   server->ischannel = ischannel_func;
 331   server->get_nick_flags = get_nick_flags;
 332   server->send_message = (void *) send_message;
 333 }
 334
 335 static void sig_disconnected(SILC_SERVER_REC *server)
 336 {
 337   if (!IS_SILC_SERVER(server))
 338     return;
 339
 340   silc_dlist_uninit(server->ftp_sessions);
 341
 342   if (server->conn && server->conn->sock != NULL) {
 343     silc_client_close_connection(silc_client, server->conn);
 344
 345     /* SILC closes the handle */
 346     g_io_channel_unref(net_sendbuffer_handle(server->handle));
 347     net_sendbuffer_destroy(server->handle, FALSE);
 348     server->handle = NULL;
 349   }
 350 }
 351
 352 SERVER_REC *silc_server_init_connect(SERVER_CONNECT_REC *conn)
 353 {
 354   SILC_SERVER_REC *server;
 355
 356   g_return_val_if_fail(IS_SILC_SERVER_CONNECT(conn), NULL);
 357   if (conn->address == NULL || *conn->address == '\0')
 358     return NULL;
 359   if (conn->nick == NULL || *conn->nick == '\0') {
 360     silc_say_error("Cannot connect: nickname is not set");
 361     return NULL;
 362   }
 363
 364   server = g_new0(SILC_SERVER_REC, 1);
 365   server->chat_type = SILC_PROTOCOL;
 366   server->connrec = (SILC_SERVER_CONNECT_REC *)conn;
 367   server_connect_ref(conn);
 368
 369   if (server->connrec->port <= 0)
 370     server->connrec->port = 706;
 371
 372   server_connect_init((SERVER_REC *)server);
 373   return (SERVER_REC *)server;
 374 }
 375
 376 void silc_server_connect(SERVER_REC *server)
 377 {
 378   if (!server_start_connect(server)) {
 379     server_connect_unref(server->connrec);
 380     g_free(server);
 381     return;
 382   }
 383 }
 384
 385 /* Return a string of all channels in server in server->channels_join()
 386    format */
 387
 388 char *silc_server_get_channels(SILC_SERVER_REC *server)
 389 {
 390   GSList *tmp;
 391   GString *chans;
 392   char *ret;
 393
 394   g_return_val_if_fail(server != NULL, FALSE);
 395
 396   chans = g_string_new(NULL);
 397   for (tmp = server->channels; tmp != NULL; tmp = tmp->next) {
 398     CHANNEL_REC *channel = tmp->data;
 399
 400     g_string_sprintfa(chans, "%s,", channel->name);
 401   }
 402
 403   if (chans->len > 0)
 404     g_string_truncate(chans, chans->len-1);
 405
 406   ret = chans->str;
 407   g_string_free(chans, FALSE);
 408
 409   return ret;
 410 }
 411
 412 /* Syntaxes of all SILC commands for HELP files (the help file generation
 413    will snoop these from here). */
 414
 415 /* SYNTAX: BAN <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 416 /* SYNTAX: CMODE <channel> +|-<modes> [{ <arguments>}] */
 417 /* SYNTAX: CUMODE <channel> +|-<modes> <nickname>[@<hostname>] */
 418 /* SYNTAX: GETKEY <nickname or server name> */
 419 /* SYNTAX: INVITE <channel> [<nickname>[@hostname>] */
 420 /* SYNTAX: INVITE <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 421 /* SYNTAX: KEY MSG <nickname> set|unset|list|agreement|negotiate [<arguments>] */
 422 /* SYNTAX: KEY CHANNEL <channel> set|unset|list|change [<arguments>] */
 423 /* SYNTAX: KICK <channel> <nickname>[@<hostname>] [<comment>] */
 424 /* SYNTAX: KILL <nickname>[@<hostname>] [<comment>] [-pubkey] */
 425 /* SYNTAX: OPER <username> [-pubkey] */
 426 /* SYNTAX: SILCOPER <username> [-pubkey] */
 427 /* SYNTAX: TOPIC <channel> [<topic>] */
 428 /* SYNTAX: UMODE +|-<modes> */
 429 /* SYNTAX: WHOIS <nickname>[@<hostname>] [-details] [<count>] */
 430 /* SYNTAX: WHOWAS <nickname>[@<hostname>] [<count>] */
 431 /* SYNTAX: CLOSE <server> [<port>] */
 432 /* SYNTAX: SHUTDOWN */
 433 /* SYNTAX: MOTD [<server>] */
 434 /* SYNTAX: LIST [<channel>] */
 435 /* SYNTAX: ME <message> */
 436 /* SYNTAX: ACTION <channel> <message> */
 437 /* SYNTAX: AWAY [<message>] */
 438 /* SYNTAX: INFO [<server>] */
 439 /* SYNTAX: NICK <nickname> */
 440 /* SYNTAX: NOTICE <message> */
 441 /* SYNTAX: PART [<channel>] */
 442 /* SYNTAX: PING */
 443 /* SYNTAX: SCONNECT <server> [<port>] */
 444 /* SYNTAX: USERS <channel> */
 445 /* SYNTAX: FILE SEND <filepath> <nickname> [<local IP> [<local port>]] [-no-listener]*/
 446 /* SYNTAX: FILE ACCEPT [<nickname>] */
 447 /* SYNTAX: FILE CLOSE [<nickname>] */
 448 /* SYNTAX: FILE */
 449 /* SYNTAX: JOIN <channel> [<passphrase>] [-cipher <cipher>] [-hmac <hmac>] [-founder] [-auth [<pubkeyfile> <privkeyfile> [<privkey passphrase>]]]*/
 450 /* SYNTAX: DETACH */
 451 /* SYNTAX: WATCH [<-add | -del> <nickname>] */
 452 /* SYNTAX: STATS */
 453 /* SYNTAX: ATTR [<-del> <option> [{ <value>}]] */
 454 /* SYNTAX: SMSG [<-channel>] <target> <message> */
 455
 456 void silc_command_exec(SILC_SERVER_REC *server,
 457                        const char *command, const char *args)
 458 {
 459   char *data;
 460   g_return_if_fail(server != NULL);
 461
 462   /* Call the command */
 463   data = g_strconcat(command, " ", args, NULL);
 464   silc_client_command_call(silc_client, server->conn, data);
 465   g_free(data);
 466 }
 467
 468 /* Generic command function to call any SILC command directly. */
 469
 470 static void command_self(const char *data, SILC_SERVER_REC *server,
 471                          WI_ITEM_REC *item)
 472 {
 473   CMD_SILC_SERVER(server);
 474
 475   if (!IS_SILC_SERVER(server) || !server->connected) {
 476     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 477     return;
 478   }
 479
 480   if (IS_SILC_CHANNEL(item)) {
 481     SILC_CHANNEL_REC *chanrec;
 482     chanrec = silc_channel_find(server, item->visible_name);
 483     if (chanrec)
 484       server->conn->current_channel = chanrec->entry;
 485   }
 486
 487   silc_command_exec(server, current_command, data);
 488   signal_stop();
 489 }
 490
 491 /* SCONNECT command.  Calls actually SILC's CONNECT command since Irssi
 492    has CONNECT command for other purposes. */
 493
 494 static void command_sconnect(const char *data, SILC_SERVER_REC *server)
 495 {
 496   CMD_SILC_SERVER(server);
 497   if (!IS_SILC_SERVER(server) || !server->connected) {
 498     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 499     return;
 500   }
 501
 502   silc_command_exec(server, "CONNECT", data);
 503   signal_stop();
 504 }
 505
 506 /* SMSG command, to send digitally signed messages */
 507
 508 static void command_smsg(const char *data, SILC_SERVER_REC *server,
 509                          WI_ITEM_REC *item)
 510 {
 511   GHashTable *optlist;
 512   char *target, *origtarget, *msg;
 513   void *free_arg;
 514   int free_ret, target_type;
 515
 516   g_return_if_fail(data != NULL);
 517   if (server == NULL || !server->connected)
 518     cmd_param_error(CMDERR_NOT_CONNECTED);
 519
 520   if (!cmd_get_params(data, &free_arg, 2 | PARAM_FLAG_OPTIONS |
 521                       PARAM_FLAG_UNKNOWN_OPTIONS | PARAM_FLAG_GETREST,
 522                       "msg", &optlist, &target, &msg))
 523     return;
 524   if (*target == '\0' || *msg == '\0')
 525     cmd_param_error(CMDERR_NOT_ENOUGH_PARAMS);
 526
 527   origtarget = target;
 528   free_ret = FALSE;
 529
 530   if (strcmp(target, "*") == 0) {
 531     if (item == NULL)
 532       cmd_param_error(CMDERR_NOT_JOINED);
 533
 534     target_type = IS_CHANNEL(item) ?
 535       SEND_TARGET_CHANNEL : SEND_TARGET_NICK;
 536     target = (char *) window_item_get_target(item);
 537   } else if (g_hash_table_lookup(optlist, "channel") != NULL) {
 538     target_type = SEND_TARGET_CHANNEL;
 539   } else {
 540     target_type = server_ischannel(SERVER(server), target) ?
 541       SEND_TARGET_CHANNEL : SEND_TARGET_NICK;
 542   }
 543
 544   if (target != NULL) {
 545     char *message = NULL;
 546     int len, result;
 547
 548     if (!silc_term_utf8()) {
 549       len = silc_utf8_encoded_len(msg, strlen(msg), SILC_STRING_LANGUAGE);
 550       message = silc_calloc(len + 1, sizeof(*message));
 551       g_return_if_fail(message != NULL);
 552       silc_utf8_encode(msg, strlen(msg), SILC_STRING_LANGUAGE, message, len);
 553     }
 554
 555     if (target_type == SEND_TARGET_CHANNEL)
 556       result = silc_send_channel(server, target, message ? message : msg,
 557                                  SILC_MESSAGE_FLAG_UTF8 |
 558                                  SILC_MESSAGE_FLAG_SIGNED);
 559     else
 560       result = silc_send_msg(server, target, message ? message : msg,
 561                              message ? strlen(message) : strlen(msg),
 562                              SILC_MESSAGE_FLAG_UTF8 |
 563                              SILC_MESSAGE_FLAG_SIGNED);
 564     silc_free(message);
 565     if (!result)
 566       goto out;
 567   }
 568
 569   signal_emit(target != NULL && target_type == SEND_TARGET_CHANNEL ?
 570               "message signed_own_public" : "message signed_own_private", 4,
 571               server, msg, target, origtarget);
 572 out:
 573   if (free_ret && target != NULL) g_free(target);
 574   cmd_params_free(free_arg);
 575 }
 576
 577 /* FILE command */
 578
 579 SILC_TASK_CALLBACK(silc_client_file_close_later)
 580 {
 581   FtpSession ftp = (FtpSession)context;
 582
 583   SILC_LOG_DEBUG(("Start"));
 584
 585   silc_client_file_close(silc_client, ftp->conn, ftp->session_id);
 586   silc_free(ftp->filepath);
 587   silc_free(ftp);
 588 }
 589
 590 static void silc_client_file_monitor(SilcClient client,
 591                                      SilcClientConnection conn,
 592                                      SilcClientMonitorStatus status,
 593                                      SilcClientFileError error,
 594                                      SilcUInt64 offset,
 595                                      SilcUInt64 filesize,
 596                                      SilcClientEntry client_entry,
 597                                      SilcUInt32 session_id,
 598                                      const char *filepath,
 599                                      void *context)
 600 {
 601   SILC_SERVER_REC *server = (SILC_SERVER_REC *)context;
 602   FtpSession ftp;
 603   char fsize[32];
 604
 605   snprintf(fsize, sizeof(fsize) - 1, "%llu", ((filesize + 1023) / 1024));
 606
 607   silc_dlist_start(server->ftp_sessions);
 608   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 609     if (ftp->session_id == session_id) {
 610       if (!ftp->filepath && filepath)
 611         ftp->filepath = strdup(filepath);
 612       break;
 613     }
 614   }
 615
 616   if (ftp == SILC_LIST_END)
 617     return;
 618
 619   if (status == SILC_CLIENT_FILE_MONITOR_ERROR) {
 620     if (error == SILC_CLIENT_FILE_NO_SUCH_FILE)
 621       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 622                          SILCTXT_FILE_ERROR_NO_SUCH_FILE,
 623                          client_entry->nickname,
 624                          filepath ? filepath : "[N/A]");
 625     else if (error == SILC_CLIENT_FILE_PERMISSION_DENIED)
 626       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 627                          SILCTXT_FILE_ERROR_PERMISSION_DENIED,
 628                          client_entry->nickname);
 629     else
 630       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 631                          SILCTXT_FILE_ERROR, client_entry->nickname);
 632     silc_schedule_task_add(silc_client->schedule, 0,
 633                            silc_client_file_close_later, ftp,
 634                            1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 635     if (ftp == server->current_session)
 636       server->current_session = NULL;
 637     silc_dlist_del(server->ftp_sessions, ftp);
 638   }
 639
 640   if (status == SILC_CLIENT_FILE_MONITOR_KEY_AGREEMENT) {
 641     printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 642                        SILCTXT_FILE_KEY_EXCHANGE, client_entry->nickname);
 643   }
 644
 645   /* Save some transmission data */
 646   if (offset && filesize) {
 647     unsigned long delta = time(NULL) - ftp->starttime;
 648
 649     ftp->percent = ((double)offset / (double)filesize) * (double)100.0;
 650     if (delta)
 651       ftp->kps = (double)((offset / (double)delta) + 1023) / (double)1024;
 652     else
 653       ftp->kps = (double)(offset + 1023) / (double)1024;
 654     ftp->offset = offset;
 655     ftp->filesize = filesize;
 656   }
 657
 658   if (status == SILC_CLIENT_FILE_MONITOR_SEND) {
 659     if (offset == 0) {
 660       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 661                          SILCTXT_FILE_TRANSMIT, filepath, fsize,
 662                          client_entry->nickname);
 663       ftp->starttime = time(NULL);
 664     }
 665     if (offset == filesize) {
 666       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 667                          SILCTXT_FILE_TRANSMITTED, filepath, fsize,
 668                          client_entry->nickname, ftp->kps);
 669       silc_schedule_task_add(silc_client->schedule, 0,
 670                              silc_client_file_close_later, ftp,
 671                              1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 672       if (ftp == server->current_session)
 673         server->current_session = NULL;
 674       silc_dlist_del(server->ftp_sessions, ftp);
 675     }
 676   }
 677
 678   if (status == SILC_CLIENT_FILE_MONITOR_RECEIVE) {
 679     if (offset == 0) {
 680       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 681                          SILCTXT_FILE_RECEIVE, filepath, fsize,
 682                          client_entry->nickname);
 683       ftp->starttime = time(NULL);
 684     }
 685
 686     if (offset == filesize) {
 687       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 688                          SILCTXT_FILE_RECEIVED, filepath, fsize,
 689                          client_entry->nickname, ftp->kps);
 690       silc_schedule_task_add(silc_client->schedule, 0,
 691                              silc_client_file_close_later, ftp,
 692                              1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 693       if (ftp == server->current_session)
 694         server->current_session = NULL;
 695       silc_dlist_del(server->ftp_sessions, ftp);
 696     }
 697   }
 698 }
 699
 700 typedef struct {
 701   SILC_SERVER_REC *server;
 702   char *data;
 703   char *nick;
 704   WI_ITEM_REC *item;
 705 } *FileGetClients;
 706
 707 static void silc_client_command_file_get_clients(SilcClient client,
 708                                                  SilcClientConnection conn,
 709                                                  SilcClientEntry *clients,
 710                                                  SilcUInt32 clients_count,
 711                                                  void *context)
 712 {
 713   FileGetClients internal = (FileGetClients)context;
 714
 715   if (!clients) {
 716     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Unknown nick: %s",
 717               internal->nick);
 718     silc_free(internal->data);
 719     silc_free(internal->nick);
 720     silc_free(internal);
 721     return;
 722   }
 723
 724   signal_emit("command file", 3, internal->data, internal->server,
 725               internal->item);
 726
 727   silc_free(internal->data);
 728   silc_free(internal->nick);
 729   silc_free(internal);
 730 }
 731
 732 static void command_file(const char *data, SILC_SERVER_REC *server,
 733                          WI_ITEM_REC *item)
 734 {
 735   SilcClientConnection conn;
 736   SilcClientEntry *entrys, client_entry;
 737   SilcClientFileError ret;
 738   SilcUInt32 entry_count;
 739   char *nickname = NULL, *tmp;
 740   unsigned char **argv;
 741   SilcUInt32 argc;
 742   SilcUInt32 *argv_lens, *argv_types;
 743   int type = 0;
 744   FtpSession ftp;
 745   char *local_ip = NULL;
 746   SilcUInt32 local_port = 0;
 747   SilcUInt32 session_id;
 748   bool do_not_bind = FALSE;
 749
 750   CMD_SILC_SERVER(server);
 751   if (!server || !IS_SILC_SERVER(server) || !server->connected)
 752     cmd_return_error(CMDERR_NOT_CONNECTED);
 753
 754   conn = server->conn;
 755
 756   /* Now parse all arguments */
 757   tmp = g_strconcat("FILE", " ", data, NULL);
 758   silc_parse_command_line(tmp, &argv, &argv_lens, &argv_types, &argc, 7);
 759   g_free(tmp);
 760
 761   if (argc == 1)
 762     type = 4;
 763
 764   if (argc >= 2) {
 765     if (!strcasecmp(argv[1], "send"))
 766       type = 1;
 767     if (!strcasecmp(argv[1], "accept"))
 768       type = 2;
 769     if (!strcasecmp(argv[1], "close"))
 770       type = 3;
 771   }
 772
 773   if (type == 0)
 774     cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 775
 776   switch (type) {
 777   case 1:
 778     if (argc < 4)
 779       cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 780
 781     /* Parse the typed nickname. */
 782     if (!silc_parse_userfqdn(argv[3], &nickname, NULL)) {
 783       printformat_module("fe-common/silc", server, NULL,
 784                          MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[3]);
 785       goto out;
 786     }
 787
 788     /* Find client entry */
 789     entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 790                                            argv[3], &entry_count);
 791     if (!entrys) {
 792       FileGetClients inter = silc_calloc(1, sizeof(*inter));
 793       inter->server = server;
 794       inter->data = strdup(data);
 795       inter->nick = strdup(nickname);
 796       inter->item = item;
 797       silc_client_get_clients(silc_client, conn, nickname, argv[3],
 798                               silc_client_command_file_get_clients, inter);
 799       goto out;
 800     }
 801     client_entry = entrys[0];
 802     silc_free(entrys);
 803
 804     if (argc >= 5) {
 805       if (!strcasecmp(argv[4], "-no-listener"))
 806         do_not_bind = TRUE;
 807       else
 808         local_ip = argv[4];
 809     }
 810     if (argc >= 6) {
 811       if (!strcasecmp(argv[5], "-no-listener"))
 812         do_not_bind = TRUE;
 813       else
 814         local_port = atoi(argv[5]);
 815     }
 816     if (argc >= 7) {
 817       if (!strcasecmp(argv[6], "-no-listener"))
 818         do_not_bind = TRUE;
 819     }
 820
 821     ret =
 822       silc_client_file_send(silc_client, conn, silc_client_file_monitor,
 823                             server, local_ip, local_port, do_not_bind,
 824                             client_entry, argv[2], &session_id);
 825     if (ret == SILC_CLIENT_FILE_OK) {
 826       ftp = silc_calloc(1, sizeof(*ftp));
 827       ftp->session_id = session_id;
 828
 829       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 830                          SILCTXT_FILE_SEND, client_entry->nickname,
 831                          argv[2]);
 832
 833       ftp->client_entry = client_entry;
 834       ftp->filepath = strdup(argv[2]);
 835       ftp->conn = conn;
 836       ftp->send = TRUE;
 837       silc_dlist_add(server->ftp_sessions, ftp);
 838       server->current_session = ftp;
 839     } else {
 840       if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 841         printformat_module("fe-common/silc", server, NULL,
 842                            MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 843                            client_entry->nickname);
 844       if (ret == SILC_CLIENT_FILE_NO_SUCH_FILE)
 845         printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 846                            SILCTXT_FILE_ERROR_NO_SUCH_FILE,
 847                            client_entry->nickname, argv[2]);
 848     }
 849
 850     break;
 851
 852   case 2:
 853     /* Parse the typed nickname. */
 854     if (argc >= 3) {
 855       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
 856         printformat_module("fe-common/silc", server, NULL,
 857                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
 858         goto out;
 859       }
 860
 861       /* Find client entry */
 862       entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 863                                              argv[2], &entry_count);
 864       if (!entrys) {
 865         FileGetClients inter = silc_calloc(1, sizeof(*inter));
 866         inter->server = server;
 867         inter->data = strdup(data);
 868         inter->nick = strdup(nickname);
 869         inter->item = item;
 870         silc_client_get_clients(silc_client, conn, nickname, argv[2],
 871                                 silc_client_command_file_get_clients, inter);
 872         goto out;
 873       }
 874       client_entry = entrys[0];
 875       silc_free(entrys);
 876     } else {
 877       if (!server->current_session) {
 878         printformat_module("fe-common/silc", server, NULL,
 879                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 880         goto out;
 881       }
 882
 883       ret = silc_client_file_receive(silc_client, conn,
 884                                      silc_client_file_monitor, server, NULL,
 885                                      server->current_session->session_id);
 886       if (ret != SILC_CLIENT_FILE_OK) {
 887         if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 888           printformat_module("fe-common/silc", server, NULL,
 889                              MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 890                              server->current_session->client_entry->nickname);
 891         else
 892           printformat_module("fe-common/silc", server, NULL,
 893                              MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 894                              server->current_session->client_entry->nickname);
 895       }
 896
 897       goto out;
 898     }
 899
 900     silc_dlist_start(server->ftp_sessions);
 901     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 902       if (ftp->client_entry == client_entry && !ftp->filepath) {
 903         ret = silc_client_file_receive(silc_client, conn,
 904                                        silc_client_file_monitor, server,
 905                                        NULL, ftp->session_id);
 906         if (ret != SILC_CLIENT_FILE_OK) {
 907           if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 908             printformat_module("fe-common/silc", server, NULL,
 909                                MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 910                                client_entry->nickname);
 911           else
 912             printformat_module("fe-common/silc", server, NULL,
 913                                MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 914                                client_entry->nickname);
 915         }
 916         break;
 917       }
 918     }
 919
 920     if (ftp == SILC_LIST_END) {
 921       printformat_module("fe-common/silc", server, NULL,
 922                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 923                          client_entry->nickname);
 924       goto out;
 925     }
 926     break;
 927
 928   case 3:
 929     /* Parse the typed nickname. */
 930     if (argc >= 3) {
 931       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
 932         printformat_module("fe-common/silc", server, NULL,
 933                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
 934         goto out;
 935       }
 936
 937       /* Find client entry */
 938       entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 939                                              argv[2], &entry_count);
 940       if (!entrys) {
 941         FileGetClients inter = silc_calloc(1, sizeof(*inter));
 942         inter->server = server;
 943         inter->data = strdup(data);
 944         inter->nick = strdup(nickname);
 945         inter->item = item;
 946         silc_client_get_clients(silc_client, conn, nickname, argv[2],
 947                                 silc_client_command_file_get_clients, inter);
 948         goto out;
 949       }
 950       client_entry = entrys[0];
 951       silc_free(entrys);
 952     } else {
 953       if (!server->current_session) {
 954         printformat_module("fe-common/silc", server, NULL,
 955                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 956         goto out;
 957       }
 958
 959       silc_client_file_close(silc_client, conn,
 960                              server->current_session->session_id);
 961       printformat_module("fe-common/silc", server, NULL,
 962                          MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
 963                          server->current_session->client_entry->nickname,
 964                          server->current_session->filepath ?
 965                          server->current_session->filepath : "[N/A]");
 966       silc_dlist_del(server->ftp_sessions, server->current_session);
 967       silc_free(server->current_session->filepath);
 968       silc_free(server->current_session);
 969       server->current_session = NULL;
 970       goto out;
 971     }
 972
 973     silc_dlist_start(server->ftp_sessions);
 974     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 975       if (ftp->client_entry == client_entry) {
 976         silc_client_file_close(silc_client, conn, ftp->session_id);
 977         printformat_module("fe-common/silc", server, NULL,
 978                            MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
 979                            client_entry->nickname,
 980                            ftp->filepath ? ftp->filepath : "[N/A]");
 981         if (ftp == server->current_session)
 982           server->current_session = NULL;
 983         silc_dlist_del(server->ftp_sessions, ftp);
 984         silc_free(ftp->filepath);
 985         silc_free(ftp);
 986         break;
 987       }
 988     }
 989
 990     if (ftp == SILC_LIST_END) {
 991       printformat_module("fe-common/silc", server, NULL,
 992                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 993                          client_entry->nickname);
 994       goto out;
 995     }
 996     break;
 997
 998   case 4:
 999
1000     if (!silc_dlist_count(server->ftp_sessions)) {
1001       printformat_module("fe-common/silc", server, NULL,
1002                          MSGLEVEL_CRAP, SILCTXT_FILE_NA);
1003       goto out;
1004     }
1005
1006     printformat_module("fe-common/silc", server, NULL,
1007                        MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_HEADER);
1008
1009     silc_dlist_start(server->ftp_sessions);
1010     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
1011       printformat_module("fe-common/silc", server, NULL,
1012                          MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_LINE,
1013                          ftp->client_entry->nickname,
1014                          ftp->send ? "send" : "receive",
1015                          (SilcUInt32)(ftp->offset + 1023) / 1024,
1016                          (SilcUInt32)(ftp->filesize + 1023) / 1024,
1017                          ftp->percent, ftp->kps,
1018                          ftp->filepath ? ftp->filepath : "[N/A]");
1019     }
1020
1021     break;
1022
1023   default:
1024     break;
1025   }
1026
1027  out:
1028   silc_free(nickname);
1029 }
1030
1031 void silc_server_init(void)
1032 {
1033   silc_servers_reconnect_init();
1034
1035   signal_add_first("server connected", (SIGNAL_FUNC) sig_connected);
1036   signal_add("server disconnected", (SIGNAL_FUNC) sig_disconnected);
1037   signal_add("mime-send", (SIGNAL_FUNC)silc_send_mime);
1038   command_bind_silc("whois", MODULE_NAME, (SIGNAL_FUNC) command_self);
1039   command_bind_silc("whowas", MODULE_NAME, (SIGNAL_FUNC) command_self);
1040   command_bind_silc("nick", MODULE_NAME, (SIGNAL_FUNC) command_self);
1041   command_bind_silc("topic", MODULE_NAME, (SIGNAL_FUNC) command_self);
1042   command_bind_silc("cmode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1043   command_bind_silc("cumode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1044   command_bind_silc("users", MODULE_NAME, (SIGNAL_FUNC) command_self);
1045   command_bind_silc("list", MODULE_NAME, (SIGNAL_FUNC) command_self);
1046   command_bind_silc("ban", MODULE_NAME, (SIGNAL_FUNC) command_self);
1047   command_bind_silc("oper", MODULE_NAME, (SIGNAL_FUNC) command_self);
1048   command_bind_silc("silcoper", MODULE_NAME, (SIGNAL_FUNC) command_self);
1049   command_bind_silc("umode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1050   command_bind_silc("invite", MODULE_NAME, (SIGNAL_FUNC) command_self);
1051   command_bind_silc("kill", MODULE_NAME, (SIGNAL_FUNC) command_self);
1052   command_bind_silc("kick", MODULE_NAME, (SIGNAL_FUNC) command_self);
1053   command_bind_silc("info", MODULE_NAME, (SIGNAL_FUNC) command_self);
1054   command_bind_silc("ping", MODULE_NAME, (SIGNAL_FUNC) command_self);
1055   command_bind_silc("motd", MODULE_NAME, (SIGNAL_FUNC) command_self);
1056   command_bind_silc("close", MODULE_NAME, (SIGNAL_FUNC) command_self);
1057   command_bind_silc("shutdown", MODULE_NAME, (SIGNAL_FUNC) command_self);
1058   command_bind_silc("getkey", MODULE_NAME, (SIGNAL_FUNC) command_self);
1059   command_bind_silc("sconnect", MODULE_NAME, (SIGNAL_FUNC) command_sconnect);
1060   command_bind_silc("file", MODULE_NAME, (SIGNAL_FUNC) command_file);
1061   command_bind_silc("detach", MODULE_NAME, (SIGNAL_FUNC) command_self);
1062   command_bind_silc("watch", MODULE_NAME, (SIGNAL_FUNC) command_self);
1063   command_bind_silc("stats", MODULE_NAME, (SIGNAL_FUNC) command_self);
1064   command_bind_silc("attr", MODULE_NAME, (SIGNAL_FUNC) command_attr);
1065   command_bind_silc("smsg", MODULE_NAME, (SIGNAL_FUNC) command_smsg);
1066
1067   command_set_options("connect", "+silcnet");
1068 }
1069
1070 void silc_server_deinit(void)
1071 {
1072   silc_servers_reconnect_deinit();
1073
1074   signal_remove("server connected", (SIGNAL_FUNC) sig_connected);
1075   signal_remove("server disconnected", (SIGNAL_FUNC) sig_disconnected);
1076   signal_remove("mime-send", (SIGNAL_FUNC)silc_send_mime);
1077   command_unbind("whois", (SIGNAL_FUNC) command_self);
1078   command_unbind("whowas", (SIGNAL_FUNC) command_self);
1079   command_unbind("nick", (SIGNAL_FUNC) command_self);
1080   command_unbind("topic", (SIGNAL_FUNC) command_self);
1081   command_unbind("cmode", (SIGNAL_FUNC) command_self);
1082   command_unbind("cumode", (SIGNAL_FUNC) command_self);
1083   command_unbind("users", (SIGNAL_FUNC) command_self);
1084   command_unbind("list", (SIGNAL_FUNC) command_self);
1085   command_unbind("oper", (SIGNAL_FUNC) command_self);
1086   command_unbind("silcoper", (SIGNAL_FUNC) command_self);
1087   command_unbind("umode", (SIGNAL_FUNC) command_self);
1088   command_unbind("invite", (SIGNAL_FUNC) command_self);
1089   command_unbind("kill", (SIGNAL_FUNC) command_self);
1090   command_unbind("kick", (SIGNAL_FUNC) command_self);
1091   command_unbind("info", (SIGNAL_FUNC) command_self);
1092   command_unbind("ping", (SIGNAL_FUNC) command_self);
1093   command_unbind("motd", (SIGNAL_FUNC) command_self);
1094   command_unbind("ban", (SIGNAL_FUNC) command_self);
1095   command_unbind("close", (SIGNAL_FUNC) command_self);
1096   command_unbind("shutdown", (SIGNAL_FUNC) command_self);
1097   command_unbind("getkey", (SIGNAL_FUNC) command_self);
1098   command_unbind("sconnect", (SIGNAL_FUNC) command_sconnect);
1099   command_unbind("file", (SIGNAL_FUNC) command_file);
1100   command_unbind("detach", (SIGNAL_FUNC) command_self);
1101   command_unbind("watch", (SIGNAL_FUNC) command_self);
1102   command_unbind("stats", (SIGNAL_FUNC) command_self);
1103   command_unbind("attr", (SIGNAL_FUNC) command_attr);
1104   command_unbind("smsg", (SIGNAL_FUNC) command_smsg);
1105 }
1106
1107 void silc_server_free_ftp(SILC_SERVER_REC *server,
1108                           SilcClientEntry client_entry)
1109 {
1110   FtpSession ftp;
1111
1112   silc_dlist_start(server->ftp_sessions);
1113   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
1114     if (ftp->client_entry == client_entry) {
1115       silc_dlist_del(server->ftp_sessions, ftp);
1116       silc_free(ftp->filepath);
1117       silc_free(ftp);
1118     }
1119   }
1120 }
1121
1122 bool silc_term_utf8(void)
1123 {
1124   const char *str;
1125   str = settings_get_str("term_type");
1126   if (str)
1127     if (g_strcasecmp(str, "utf-8") == 0)
1128       return TRUE;
1129   return FALSE;
1130 }