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

   1 /*
   2   silc-server.c : irssi
   3
   4   Copyright (C) 2000 - 2001 Timo Sirainen
   5                             Pekka Riikonen <priikone@poseidon.pspt.fi>
   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, int data_len,
 179                     const char *enc, const char *type)
 180 {
 181   SILC_CHANNEL_REC *channel;
 182   QUERY_REC *query;
 183   char *mime_data;
 184   int mime_data_len;
 185
 186   if (!(IS_SILC_SERVER(server)) || (data == NULL) || (to == NULL) ||
 187       (enc == NULL) || (type == NULL))
 188     return;
 189
 190 #define SILC_MIME_HEADER "MIME-Version: 1.0\r\nContent-Type: %s\r\nContent-Transfer-Encoding: %s\r\n\r\n"
 191
 192   mime_data_len = data_len + strlen(SILC_MIME_HEADER) - 4
 193     + strlen(enc) + strlen(type);
 194   if (mime_data_len >= SILC_PACKET_MAX_LEN)
 195     return;
 196
 197   /* we risk to large packets here... */
 198   mime_data = silc_calloc(mime_data_len, sizeof(*mime_data));
 199   snprintf(mime_data, mime_data_len, SILC_MIME_HEADER, type, enc);
 200   memmove(mime_data + strlen(SILC_MIME_HEADER) - 4 + strlen(enc) + strlen(type),
 201           data, data_len);
 202
 203 #undef SILC_MIME_HEADER
 204
 205   if (IS_SILC_CHANNEL(to)) {
 206     channel = SILC_CHANNEL(to);
 207     silc_client_send_channel_message(silc_client, server->conn, channel->entry,
 208                                      NULL, SILC_MESSAGE_FLAG_DATA,
 209                                      mime_data, mime_data_len, TRUE);
 210   } else if (IS_SILC_QUERY(to)) {
 211     query = SILC_QUERY(to);
 212     silc_send_msg(server, query->name, mime_data, mime_data_len,
 213                   SILC_MESSAGE_FLAG_DATA);
 214
 215   }
 216
 217   silc_free(mime_data);
 218 }
 219
 220 static int isnickflag_func(char flag)
 221 {
 222   return flag == '@' || flag == '+';
 223 }
 224
 225 static int ischannel_func(SERVER_REC *server, const char *data)
 226 {
 227   return FALSE;
 228 }
 229
 230 const char *get_nick_flags(void)
 231 {
 232   return "@\0\0";
 233 }
 234
 235 static void send_message(SILC_SERVER_REC *server, char *target,
 236                          char *msg, int target_type)
 237 {
 238   char *message = NULL;
 239   int len;
 240
 241   g_return_if_fail(server != NULL);
 242   g_return_if_fail(target != NULL);
 243   g_return_if_fail(msg != NULL);
 244
 245   if (!silc_term_utf8()) {
 246     len = silc_utf8_encoded_len(msg, strlen(msg), SILC_STRING_LANGUAGE);
 247     message = silc_calloc(len + 1, sizeof(*message));
 248     g_return_if_fail(message != NULL);
 249     silc_utf8_encode(msg, strlen(msg), SILC_STRING_LANGUAGE, message, len);
 250   }
 251
 252   if (target_type == SEND_TARGET_CHANNEL)
 253     silc_send_channel(server, target, message ? message : msg,
 254                       SILC_MESSAGE_FLAG_UTF8);
 255   else
 256     silc_send_msg(server, target, message ? message : msg,
 257                   message ? strlen(message) : strlen(msg),
 258                   SILC_MESSAGE_FLAG_UTF8);
 259
 260   silc_free(message);
 261 }
 262
 263 void silc_send_heartbeat(SilcSocketConnection sock,
 264                          void *hb_context)
 265 {
 266   SILC_SERVER_REC *server = SILC_SERVER(hb_context);
 267
 268   if (server == NULL)
 269     return;
 270
 271   silc_client_send_packet(silc_client, server->conn, SILC_PACKET_HEARTBEAT,
 272                           NULL, 0);
 273 }
 274
 275 static void sig_connected(SILC_SERVER_REC *server)
 276 {
 277   SilcClientConnection conn;
 278   SilcClientConnectionParams params;
 279   char file[256];
 280   int fd;
 281
 282   if (!IS_SILC_SERVER(server))
 283     return;
 284
 285   /* Try to read detached session data and use it if found. */
 286   memset(&params, 0, sizeof(params));
 287   memset(file, 0, sizeof(file));
 288   snprintf(file, sizeof(file) - 1, "%s/session", get_irssi_dir());
 289   params.detach_data = silc_file_readfile(file, &params.detach_data_len);
 290   if (params.detach_data)
 291     params.detach_data[params.detach_data_len] = 0;
 292
 293   /* Add connection to the client library */
 294   conn = silc_client_add_connection(silc_client, &params,
 295                                     server->connrec->address,
 296                                     server->connrec->port,
 297                                     server);
 298   server->conn = conn;
 299
 300   if (params.detach_data)
 301     keyboard_entry_redirect(NULL,
 302                             "-- Resuming old session, may take a while ...",
 303                             ENTRY_REDIRECT_FLAG_HIDDEN, server);
 304
 305   silc_free(params.detach_data);
 306   unlink(file);
 307
 308   fd = g_io_channel_unix_get_fd(net_sendbuffer_handle(server->handle));
 309
 310   /* Start key exchange with the server */
 311   silc_client_start_key_exchange(silc_client, conn, fd);
 312
 313   /* Put default attributes */
 314   silc_query_attributes_default(silc_client, conn);
 315
 316   /* initialize heartbeat sending */
 317   if (settings_get_int("heartbeat") > 0)
 318     silc_socket_set_heartbeat(conn->sock, settings_get_int("heartbeat"),
 319                                 (void *)server,
 320                                 (SilcSocketConnectionHBCb)silc_send_heartbeat,
 321                                 silc_client->schedule);
 322
 323   server->ftp_sessions = silc_dlist_init();
 324   server->isnickflag = isnickflag_func;
 325   server->ischannel = ischannel_func;
 326   server->get_nick_flags = get_nick_flags;
 327   server->send_message = (void *) send_message;
 328 }
 329
 330 static void sig_disconnected(SILC_SERVER_REC *server)
 331 {
 332   if (!IS_SILC_SERVER(server))
 333     return;
 334
 335   silc_dlist_uninit(server->ftp_sessions);
 336
 337   if (server->conn && server->conn->sock != NULL) {
 338     silc_client_close_connection(silc_client, server->conn);
 339
 340     /* SILC closes the handle */
 341     g_io_channel_unref(net_sendbuffer_handle(server->handle));
 342     net_sendbuffer_destroy(server->handle, FALSE);
 343     server->handle = NULL;
 344   }
 345 }
 346
 347 SERVER_REC *silc_server_init_connect(SERVER_CONNECT_REC *conn)
 348 {
 349   SILC_SERVER_REC *server;
 350
 351   g_return_val_if_fail(IS_SILC_SERVER_CONNECT(conn), NULL);
 352   if (conn->address == NULL || *conn->address == '\0')
 353     return NULL;
 354   if (conn->nick == NULL || *conn->nick == '\0') {
 355     silc_say_error("Cannot connect: nickname is not set");
 356     return NULL;
 357   }
 358
 359   server = g_new0(SILC_SERVER_REC, 1);
 360   server->chat_type = SILC_PROTOCOL;
 361   server->connrec = (SILC_SERVER_CONNECT_REC *)conn;
 362   server_connect_ref(conn);
 363
 364   if (server->connrec->port <= 0)
 365     server->connrec->port = 706;
 366
 367   server_connect_init((SERVER_REC *)server);
 368   return (SERVER_REC *)server;
 369 }
 370
 371 void silc_server_connect(SERVER_REC *server)
 372 {
 373   if (!server_start_connect(server)) {
 374     server_connect_unref(server->connrec);
 375     g_free(server);
 376     return;
 377   }
 378 }
 379
 380 /* Return a string of all channels in server in server->channels_join()
 381    format */
 382
 383 char *silc_server_get_channels(SILC_SERVER_REC *server)
 384 {
 385   GSList *tmp;
 386   GString *chans;
 387   char *ret;
 388
 389   g_return_val_if_fail(server != NULL, FALSE);
 390
 391   chans = g_string_new(NULL);
 392   for (tmp = server->channels; tmp != NULL; tmp = tmp->next) {
 393     CHANNEL_REC *channel = tmp->data;
 394
 395     g_string_sprintfa(chans, "%s,", channel->name);
 396   }
 397
 398   if (chans->len > 0)
 399     g_string_truncate(chans, chans->len-1);
 400
 401   ret = chans->str;
 402   g_string_free(chans, FALSE);
 403
 404   return ret;
 405 }
 406
 407 /* Syntaxes of all SILC commands for HELP files (the help file generation
 408    will snoop these from here). */
 409
 410 /* SYNTAX: BAN <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 411 /* SYNTAX: CMODE <channel> +|-<modes> [{ <arguments>}] */
 412 /* SYNTAX: CUMODE <channel> +|-<modes> <nickname>[@<hostname>] */
 413 /* SYNTAX: GETKEY <nickname or server name> */
 414 /* SYNTAX: INVITE <channel> [<nickname>[@hostname>] */
 415 /* SYNTAX: INVITE <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 416 /* SYNTAX: KEY MSG <nickname> set|unset|list|agreement|negotiate [<arguments>] */
 417 /* SYNTAX: KEY CHANNEL <channel> set|unset|list|change [<arguments>] */
 418 /* SYNTAX: KICK <channel> <nickname>[@<hostname>] [<comment>] */
 419 /* SYNTAX: KILL <nickname>[@<hostname>] [<comment>] [-pubkey] */
 420 /* SYNTAX: OPER <username> [-pubkey] */
 421 /* SYNTAX: SILCOPER <username> [-pubkey] */
 422 /* SYNTAX: TOPIC <channel> [<topic>] */
 423 /* SYNTAX: UMODE +|-<modes> */
 424 /* SYNTAX: WHOIS <nickname>[@<hostname>] [-details] [<count>] */
 425 /* SYNTAX: WHOWAS <nickname>[@<hostname>] [<count>] */
 426 /* SYNTAX: CLOSE <server> [<port>] */
 427 /* SYNTAX: SHUTDOWN */
 428 /* SYNTAX: MOTD [<server>] */
 429 /* SYNTAX: LIST [<channel>] */
 430 /* SYNTAX: ME <message> */
 431 /* SYNTAX: ACTION <channel> <message> */
 432 /* SYNTAX: AWAY [<message>] */
 433 /* SYNTAX: INFO [<server>] */
 434 /* SYNTAX: NICK <nickname> */
 435 /* SYNTAX: NOTICE <message> */
 436 /* SYNTAX: PART [<channel>] */
 437 /* SYNTAX: PING */
 438 /* SYNTAX: SCONNECT <server> [<port>] */
 439 /* SYNTAX: USERS <channel> */
 440 /* SYNTAX: FILE SEND <filepath> <nickname> [<local IP> [<local port>]] [-no-listener]*/
 441 /* SYNTAX: FILE ACCEPT [<nickname>] */
 442 /* SYNTAX: FILE CLOSE [<nickname>] */
 443 /* SYNTAX: FILE */
 444 /* SYNTAX: JOIN <channel> [<passphrase>] [-cipher <cipher>] [-hmac <hmac>] [-founder] */
 445 /* SYNTAX: DETACH */
 446 /* SYNTAX: WATCH [<-add | -del> <nickname>] */
 447 /* SYNTAX: STATS */
 448 /* SYNTAX: ATTR [<-del> <option> [{ <value>}]] */
 449 /* SYNTAX: SMSG [<-channel>] <target> <message> */
 450
 451 void silc_command_exec(SILC_SERVER_REC *server,
 452                        const char *command, const char *args)
 453 {
 454   char *data;
 455   g_return_if_fail(server != NULL);
 456
 457   /* Call the command */
 458   data = g_strconcat(command, " ", args, NULL);
 459   silc_client_command_call(silc_client, server->conn, data);
 460   g_free(data);
 461 }
 462
 463 /* Generic command function to call any SILC command directly. */
 464
 465 static void command_self(const char *data, SILC_SERVER_REC *server,
 466                          WI_ITEM_REC *item)
 467 {
 468   CMD_SILC_SERVER(server);
 469
 470   if (!IS_SILC_SERVER(server) || !server->connected) {
 471     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 472     return;
 473   }
 474
 475   if (IS_SILC_CHANNEL(item)) {
 476     SILC_CHANNEL_REC *chanrec;
 477     chanrec = silc_channel_find(server, item->visible_name);
 478     if (chanrec)
 479       server->conn->current_channel = chanrec->entry;
 480   }
 481
 482   silc_command_exec(server, current_command, data);
 483   signal_stop();
 484 }
 485
 486 /* SCONNECT command.  Calls actually SILC's CONNECT command since Irssi
 487    has CONNECT command for other purposes. */
 488
 489 static void command_sconnect(const char *data, SILC_SERVER_REC *server)
 490 {
 491   CMD_SILC_SERVER(server);
 492   if (!IS_SILC_SERVER(server) || !server->connected) {
 493     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 494     return;
 495   }
 496
 497   silc_command_exec(server, "CONNECT", data);
 498   signal_stop();
 499 }
 500
 501 /* SMSG command, to send digitally signed messages */
 502
 503 static void command_smsg(const char *data, SILC_SERVER_REC *server,
 504                          WI_ITEM_REC *item)
 505 {
 506   GHashTable *optlist;
 507   char *target, *origtarget, *msg;
 508   void *free_arg;
 509   int free_ret, target_type;
 510
 511   g_return_if_fail(data != NULL);
 512   if (server == NULL || !server->connected)
 513     cmd_param_error(CMDERR_NOT_CONNECTED);
 514
 515   if (!cmd_get_params(data, &free_arg, 2 | PARAM_FLAG_OPTIONS |
 516                       PARAM_FLAG_UNKNOWN_OPTIONS | PARAM_FLAG_GETREST,
 517                       "msg", &optlist, &target, &msg))
 518     return;
 519   if (*target == '\0' || *msg == '\0')
 520     cmd_param_error(CMDERR_NOT_ENOUGH_PARAMS);
 521
 522   origtarget = target;
 523   free_ret = FALSE;
 524
 525   if (strcmp(target, "*") == 0) {
 526     if (item == NULL)
 527       cmd_param_error(CMDERR_NOT_JOINED);
 528
 529     target_type = IS_CHANNEL(item) ?
 530       SEND_TARGET_CHANNEL : SEND_TARGET_NICK;
 531     target = (char *) window_item_get_target(item);
 532   } else if (g_hash_table_lookup(optlist, "channel") != NULL) {
 533     target_type = SEND_TARGET_CHANNEL;
 534   } else {
 535     target_type = server_ischannel(SERVER(server), target) ?
 536       SEND_TARGET_CHANNEL : SEND_TARGET_NICK;
 537   }
 538
 539   if (target != NULL) {
 540     char *message = NULL;
 541     int len, result;
 542
 543     if (!silc_term_utf8()) {
 544       len = silc_utf8_encoded_len(msg, strlen(msg), SILC_STRING_LANGUAGE);
 545       message = silc_calloc(len + 1, sizeof(*message));
 546       g_return_if_fail(message != NULL);
 547       silc_utf8_encode(msg, strlen(msg), SILC_STRING_LANGUAGE, message, len);
 548     }
 549
 550     if (target_type == SEND_TARGET_CHANNEL)
 551       result = silc_send_channel(server, target, message ? message : msg,
 552                                  SILC_MESSAGE_FLAG_UTF8 |
 553                                  SILC_MESSAGE_FLAG_SIGNED);
 554     else
 555       result = silc_send_msg(server, target, message ? message : msg,
 556                              message ? strlen(message) : strlen(msg),
 557                              SILC_MESSAGE_FLAG_UTF8 |
 558                              SILC_MESSAGE_FLAG_SIGNED);
 559     silc_free(message);
 560     if (!result)
 561       goto out;
 562   }
 563
 564   signal_emit(target != NULL && target_type == SEND_TARGET_CHANNEL ?
 565               "message signed_own_public" : "message signed_own_private", 4,
 566               server, msg, target, origtarget);
 567 out:
 568   if (free_ret && target != NULL) g_free(target);
 569   cmd_params_free(free_arg);
 570 }
 571
 572 /* FILE command */
 573
 574 SILC_TASK_CALLBACK(silc_client_file_close_later)
 575 {
 576   FtpSession ftp = (FtpSession)context;
 577
 578   SILC_LOG_DEBUG(("Start"));
 579
 580   silc_client_file_close(silc_client, ftp->conn, ftp->session_id);
 581   silc_free(ftp->filepath);
 582   silc_free(ftp);
 583 }
 584
 585 static void silc_client_file_monitor(SilcClient client,
 586                                      SilcClientConnection conn,
 587                                      SilcClientMonitorStatus status,
 588                                      SilcClientFileError error,
 589                                      SilcUInt64 offset,
 590                                      SilcUInt64 filesize,
 591                                      SilcClientEntry client_entry,
 592                                      SilcUInt32 session_id,
 593                                      const char *filepath,
 594                                      void *context)
 595 {
 596   SILC_SERVER_REC *server = (SILC_SERVER_REC *)context;
 597   FtpSession ftp;
 598   char fsize[32];
 599
 600   snprintf(fsize, sizeof(fsize) - 1, "%llu", ((filesize + 1023) / 1024));
 601
 602   silc_dlist_start(server->ftp_sessions);
 603   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 604     if (ftp->session_id == session_id) {
 605       if (!ftp->filepath && filepath)
 606         ftp->filepath = strdup(filepath);
 607       break;
 608     }
 609   }
 610
 611   if (ftp == SILC_LIST_END)
 612     return;
 613
 614   if (status == SILC_CLIENT_FILE_MONITOR_ERROR) {
 615     if (error == SILC_CLIENT_FILE_NO_SUCH_FILE)
 616       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 617                          SILCTXT_FILE_ERROR_NO_SUCH_FILE,
 618                          client_entry->nickname,
 619                          filepath ? filepath : "[N/A]");
 620     else if (error == SILC_CLIENT_FILE_PERMISSION_DENIED)
 621       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 622                          SILCTXT_FILE_ERROR_PERMISSION_DENIED,
 623                          client_entry->nickname);
 624     else
 625       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 626                          SILCTXT_FILE_ERROR, client_entry->nickname);
 627     silc_schedule_task_add(silc_client->schedule, 0,
 628                            silc_client_file_close_later, ftp,
 629                            1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 630     if (ftp == server->current_session)
 631       server->current_session = NULL;
 632     silc_dlist_del(server->ftp_sessions, ftp);
 633   }
 634
 635   if (status == SILC_CLIENT_FILE_MONITOR_KEY_AGREEMENT) {
 636     printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 637                        SILCTXT_FILE_KEY_EXCHANGE, client_entry->nickname);
 638   }
 639
 640   /* Save some transmission data */
 641   if (offset && filesize) {
 642     unsigned long delta = time(NULL) - ftp->starttime;
 643
 644     ftp->percent = ((double)offset / (double)filesize) * (double)100.0;
 645     if (delta)
 646       ftp->kps = (double)((offset / (double)delta) + 1023) / (double)1024;
 647     else
 648       ftp->kps = (double)(offset + 1023) / (double)1024;
 649     ftp->offset = offset;
 650     ftp->filesize = filesize;
 651   }
 652
 653   if (status == SILC_CLIENT_FILE_MONITOR_SEND) {
 654     if (offset == 0) {
 655       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 656                          SILCTXT_FILE_TRANSMIT, filepath, fsize,
 657                          client_entry->nickname);
 658       ftp->starttime = time(NULL);
 659     }
 660     if (offset == filesize) {
 661       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 662                          SILCTXT_FILE_TRANSMITTED, filepath, fsize,
 663                          client_entry->nickname, ftp->kps);
 664       silc_schedule_task_add(silc_client->schedule, 0,
 665                              silc_client_file_close_later, ftp,
 666                              1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 667       if (ftp == server->current_session)
 668         server->current_session = NULL;
 669       silc_dlist_del(server->ftp_sessions, ftp);
 670     }
 671   }
 672
 673   if (status == SILC_CLIENT_FILE_MONITOR_RECEIVE) {
 674     if (offset == 0) {
 675       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 676                          SILCTXT_FILE_RECEIVE, filepath, fsize,
 677                          client_entry->nickname);
 678       ftp->starttime = time(NULL);
 679     }
 680
 681     if (offset == filesize) {
 682       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 683                          SILCTXT_FILE_RECEIVED, filepath, fsize,
 684                          client_entry->nickname, ftp->kps);
 685       silc_schedule_task_add(silc_client->schedule, 0,
 686                              silc_client_file_close_later, ftp,
 687                              1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 688       if (ftp == server->current_session)
 689         server->current_session = NULL;
 690       silc_dlist_del(server->ftp_sessions, ftp);
 691     }
 692   }
 693 }
 694
 695 typedef struct {
 696   SILC_SERVER_REC *server;
 697   char *data;
 698   char *nick;
 699   WI_ITEM_REC *item;
 700 } *FileGetClients;
 701
 702 static void silc_client_command_file_get_clients(SilcClient client,
 703                                                  SilcClientConnection conn,
 704                                                  SilcClientEntry *clients,
 705                                                  SilcUInt32 clients_count,
 706                                                  void *context)
 707 {
 708   FileGetClients internal = (FileGetClients)context;
 709
 710   if (!clients) {
 711     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Unknown nick: %s",
 712               internal->nick);
 713     silc_free(internal->data);
 714     silc_free(internal->nick);
 715     silc_free(internal);
 716     return;
 717   }
 718
 719   signal_emit("command file", 3, internal->data, internal->server,
 720               internal->item);
 721
 722   silc_free(internal->data);
 723   silc_free(internal->nick);
 724   silc_free(internal);
 725 }
 726
 727 static void command_file(const char *data, SILC_SERVER_REC *server,
 728                          WI_ITEM_REC *item)
 729 {
 730   SilcClientConnection conn;
 731   SilcClientEntry *entrys, client_entry;
 732   SilcClientFileError ret;
 733   SilcUInt32 entry_count;
 734   char *nickname = NULL, *tmp;
 735   unsigned char **argv;
 736   SilcUInt32 argc;
 737   SilcUInt32 *argv_lens, *argv_types;
 738   int type = 0;
 739   FtpSession ftp;
 740   char *local_ip = NULL;
 741   SilcUInt32 local_port = 0;
 742   SilcUInt32 session_id;
 743   bool do_not_bind = FALSE;
 744
 745   CMD_SILC_SERVER(server);
 746   if (!server || !IS_SILC_SERVER(server) || !server->connected)
 747     cmd_return_error(CMDERR_NOT_CONNECTED);
 748
 749   conn = server->conn;
 750
 751   /* Now parse all arguments */
 752   tmp = g_strconcat("FILE", " ", data, NULL);
 753   silc_parse_command_line(tmp, &argv, &argv_lens, &argv_types, &argc, 7);
 754   g_free(tmp);
 755
 756   if (argc == 1)
 757     type = 4;
 758
 759   if (argc >= 2) {
 760     if (!strcasecmp(argv[1], "send"))
 761       type = 1;
 762     if (!strcasecmp(argv[1], "accept"))
 763       type = 2;
 764     if (!strcasecmp(argv[1], "close"))
 765       type = 3;
 766   }
 767
 768   if (type == 0)
 769     cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 770
 771   switch (type) {
 772   case 1:
 773     if (argc < 4)
 774       cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 775
 776     /* Parse the typed nickname. */
 777     if (!silc_parse_userfqdn(argv[3], &nickname, NULL)) {
 778       printformat_module("fe-common/silc", server, NULL,
 779                          MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[3]);
 780       goto out;
 781     }
 782
 783     /* Find client entry */
 784     entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 785                                            argv[3], &entry_count);
 786     if (!entrys) {
 787       FileGetClients inter = silc_calloc(1, sizeof(*inter));
 788       inter->server = server;
 789       inter->data = strdup(data);
 790       inter->nick = strdup(nickname);
 791       inter->item = item;
 792       silc_client_get_clients(silc_client, conn, nickname, argv[3],
 793                               silc_client_command_file_get_clients, inter);
 794       goto out;
 795     }
 796     client_entry = entrys[0];
 797     silc_free(entrys);
 798
 799     if (argc >= 5) {
 800       if (!strcasecmp(argv[4], "-no-listener"))
 801         do_not_bind = TRUE;
 802       else
 803         local_ip = argv[4];
 804     }
 805     if (argc >= 6) {
 806       if (!strcasecmp(argv[5], "-no-listener"))
 807         do_not_bind = TRUE;
 808       else
 809         local_port = atoi(argv[5]);
 810     }
 811     if (argc >= 7) {
 812       if (!strcasecmp(argv[6], "-no-listener"))
 813         do_not_bind = TRUE;
 814     }
 815
 816     ret =
 817       silc_client_file_send(silc_client, conn, silc_client_file_monitor,
 818                             server, local_ip, local_port, do_not_bind,
 819                             client_entry, argv[2], &session_id);
 820     if (ret == SILC_CLIENT_FILE_OK) {
 821       ftp = silc_calloc(1, sizeof(*ftp));
 822       ftp->session_id = session_id;
 823
 824       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 825                          SILCTXT_FILE_SEND, client_entry->nickname,
 826                          argv[2]);
 827
 828       ftp->client_entry = client_entry;
 829       ftp->filepath = strdup(argv[2]);
 830       ftp->conn = conn;
 831       ftp->send = TRUE;
 832       silc_dlist_add(server->ftp_sessions, ftp);
 833       server->current_session = ftp;
 834     } else {
 835       if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 836         printformat_module("fe-common/silc", server, NULL,
 837                            MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 838                            client_entry->nickname);
 839       if (ret == SILC_CLIENT_FILE_NO_SUCH_FILE)
 840         printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 841                            SILCTXT_FILE_ERROR_NO_SUCH_FILE,
 842                            client_entry->nickname, argv[2]);
 843     }
 844
 845     break;
 846
 847   case 2:
 848     /* Parse the typed nickname. */
 849     if (argc >= 3) {
 850       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
 851         printformat_module("fe-common/silc", server, NULL,
 852                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
 853         goto out;
 854       }
 855
 856       /* Find client entry */
 857       entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 858                                              argv[2], &entry_count);
 859       if (!entrys) {
 860         FileGetClients inter = silc_calloc(1, sizeof(*inter));
 861         inter->server = server;
 862         inter->data = strdup(data);
 863         inter->nick = strdup(nickname);
 864         inter->item = item;
 865         silc_client_get_clients(silc_client, conn, nickname, argv[2],
 866                                 silc_client_command_file_get_clients, inter);
 867         goto out;
 868       }
 869       client_entry = entrys[0];
 870       silc_free(entrys);
 871     } else {
 872       if (!server->current_session) {
 873         printformat_module("fe-common/silc", server, NULL,
 874                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 875         goto out;
 876       }
 877
 878       ret = silc_client_file_receive(silc_client, conn,
 879                                      silc_client_file_monitor, server, NULL,
 880                                      server->current_session->session_id);
 881       if (ret != SILC_CLIENT_FILE_OK) {
 882         if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 883           printformat_module("fe-common/silc", server, NULL,
 884                              MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 885                              server->current_session->client_entry->nickname);
 886         else
 887           printformat_module("fe-common/silc", server, NULL,
 888                              MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 889                              server->current_session->client_entry->nickname);
 890       }
 891
 892       goto out;
 893     }
 894
 895     silc_dlist_start(server->ftp_sessions);
 896     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 897       if (ftp->client_entry == client_entry && !ftp->filepath) {
 898         ret = silc_client_file_receive(silc_client, conn,
 899                                        silc_client_file_monitor, server,
 900                                        NULL, ftp->session_id);
 901         if (ret != SILC_CLIENT_FILE_OK) {
 902           if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 903             printformat_module("fe-common/silc", server, NULL,
 904                                MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 905                                client_entry->nickname);
 906           else
 907             printformat_module("fe-common/silc", server, NULL,
 908                                MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 909                                client_entry->nickname);
 910         }
 911         break;
 912       }
 913     }
 914
 915     if (ftp == SILC_LIST_END) {
 916       printformat_module("fe-common/silc", server, NULL,
 917                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 918                          client_entry->nickname);
 919       goto out;
 920     }
 921     break;
 922
 923   case 3:
 924     /* Parse the typed nickname. */
 925     if (argc >= 3) {
 926       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
 927         printformat_module("fe-common/silc", server, NULL,
 928                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
 929         goto out;
 930       }
 931
 932       /* Find client entry */
 933       entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 934                                              argv[2], &entry_count);
 935       if (!entrys) {
 936         FileGetClients inter = silc_calloc(1, sizeof(*inter));
 937         inter->server = server;
 938         inter->data = strdup(data);
 939         inter->nick = strdup(nickname);
 940         inter->item = item;
 941         silc_client_get_clients(silc_client, conn, nickname, argv[2],
 942                                 silc_client_command_file_get_clients, inter);
 943         goto out;
 944       }
 945       client_entry = entrys[0];
 946       silc_free(entrys);
 947     } else {
 948       if (!server->current_session) {
 949         printformat_module("fe-common/silc", server, NULL,
 950                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 951         goto out;
 952       }
 953
 954       silc_client_file_close(silc_client, conn,
 955                              server->current_session->session_id);
 956       printformat_module("fe-common/silc", server, NULL,
 957                          MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
 958                          server->current_session->client_entry->nickname,
 959                          server->current_session->filepath ?
 960                          server->current_session->filepath : "[N/A]");
 961       silc_dlist_del(server->ftp_sessions, server->current_session);
 962       silc_free(server->current_session->filepath);
 963       silc_free(server->current_session);
 964       server->current_session = NULL;
 965       goto out;
 966     }
 967
 968     silc_dlist_start(server->ftp_sessions);
 969     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 970       if (ftp->client_entry == client_entry) {
 971         silc_client_file_close(silc_client, conn, ftp->session_id);
 972         printformat_module("fe-common/silc", server, NULL,
 973                            MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
 974                            client_entry->nickname,
 975                            ftp->filepath ? ftp->filepath : "[N/A]");
 976         if (ftp == server->current_session)
 977           server->current_session = NULL;
 978         silc_dlist_del(server->ftp_sessions, ftp);
 979         silc_free(ftp->filepath);
 980         silc_free(ftp);
 981         break;
 982       }
 983     }
 984
 985     if (ftp == SILC_LIST_END) {
 986       printformat_module("fe-common/silc", server, NULL,
 987                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 988                          client_entry->nickname);
 989       goto out;
 990     }
 991     break;
 992
 993   case 4:
 994
 995     if (!silc_dlist_count(server->ftp_sessions)) {
 996       printformat_module("fe-common/silc", server, NULL,
 997                          MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 998       goto out;
 999     }
1000
1001     printformat_module("fe-common/silc", server, NULL,
1002                        MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_HEADER);
1003
1004     silc_dlist_start(server->ftp_sessions);
1005     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
1006       printformat_module("fe-common/silc", server, NULL,
1007                          MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_LINE,
1008                          ftp->client_entry->nickname,
1009                          ftp->send ? "send" : "receive",
1010                          (SilcUInt32)(ftp->offset + 1023) / 1024,
1011                          (SilcUInt32)(ftp->filesize + 1023) / 1024,
1012                          ftp->percent, ftp->kps,
1013                          ftp->filepath ? ftp->filepath : "[N/A]");
1014     }
1015
1016     break;
1017
1018   default:
1019     break;
1020   }
1021
1022  out:
1023   silc_free(nickname);
1024 }
1025
1026 void silc_server_init(void)
1027 {
1028   silc_servers_reconnect_init();
1029
1030   signal_add_first("server connected", (SIGNAL_FUNC) sig_connected);
1031   signal_add("server disconnected", (SIGNAL_FUNC) sig_disconnected);
1032   signal_add("mime-send", (SIGNAL_FUNC)silc_send_mime);
1033   command_bind_silc("whois", MODULE_NAME, (SIGNAL_FUNC) command_self);
1034   command_bind_silc("whowas", MODULE_NAME, (SIGNAL_FUNC) command_self);
1035   command_bind_silc("nick", MODULE_NAME, (SIGNAL_FUNC) command_self);
1036   command_bind_silc("topic", MODULE_NAME, (SIGNAL_FUNC) command_self);
1037   command_bind_silc("cmode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1038   command_bind_silc("cumode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1039   command_bind_silc("users", MODULE_NAME, (SIGNAL_FUNC) command_self);
1040   command_bind_silc("list", MODULE_NAME, (SIGNAL_FUNC) command_self);
1041   command_bind_silc("ban", MODULE_NAME, (SIGNAL_FUNC) command_self);
1042   command_bind_silc("oper", MODULE_NAME, (SIGNAL_FUNC) command_self);
1043   command_bind_silc("silcoper", MODULE_NAME, (SIGNAL_FUNC) command_self);
1044   command_bind_silc("umode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1045   command_bind_silc("invite", MODULE_NAME, (SIGNAL_FUNC) command_self);
1046   command_bind_silc("kill", MODULE_NAME, (SIGNAL_FUNC) command_self);
1047   command_bind_silc("kick", MODULE_NAME, (SIGNAL_FUNC) command_self);
1048   command_bind_silc("info", MODULE_NAME, (SIGNAL_FUNC) command_self);
1049   command_bind_silc("ping", MODULE_NAME, (SIGNAL_FUNC) command_self);
1050   command_bind_silc("motd", MODULE_NAME, (SIGNAL_FUNC) command_self);
1051   command_bind_silc("close", MODULE_NAME, (SIGNAL_FUNC) command_self);
1052   command_bind_silc("shutdown", MODULE_NAME, (SIGNAL_FUNC) command_self);
1053   command_bind_silc("getkey", MODULE_NAME, (SIGNAL_FUNC) command_self);
1054   command_bind_silc("sconnect", MODULE_NAME, (SIGNAL_FUNC) command_sconnect);
1055   command_bind_silc("file", MODULE_NAME, (SIGNAL_FUNC) command_file);
1056   command_bind_silc("detach", MODULE_NAME, (SIGNAL_FUNC) command_self);
1057   command_bind_silc("watch", MODULE_NAME, (SIGNAL_FUNC) command_self);
1058   command_bind_silc("stats", MODULE_NAME, (SIGNAL_FUNC) command_self);
1059   command_bind_silc("attr", MODULE_NAME, (SIGNAL_FUNC) command_attr);
1060   command_bind_silc("smsg", MODULE_NAME, (SIGNAL_FUNC) command_smsg);
1061
1062   command_set_options("connect", "+silcnet");
1063 }
1064
1065 void silc_server_deinit(void)
1066 {
1067   silc_servers_reconnect_deinit();
1068
1069   signal_remove("server connected", (SIGNAL_FUNC) sig_connected);
1070   signal_remove("server disconnected", (SIGNAL_FUNC) sig_disconnected);
1071   signal_remove("mime-send", (SIGNAL_FUNC)silc_send_mime);
1072   command_unbind("whois", (SIGNAL_FUNC) command_self);
1073   command_unbind("whowas", (SIGNAL_FUNC) command_self);
1074   command_unbind("nick", (SIGNAL_FUNC) command_self);
1075   command_unbind("topic", (SIGNAL_FUNC) command_self);
1076   command_unbind("cmode", (SIGNAL_FUNC) command_self);
1077   command_unbind("cumode", (SIGNAL_FUNC) command_self);
1078   command_unbind("users", (SIGNAL_FUNC) command_self);
1079   command_unbind("list", (SIGNAL_FUNC) command_self);
1080   command_unbind("oper", (SIGNAL_FUNC) command_self);
1081   command_unbind("silcoper", (SIGNAL_FUNC) command_self);
1082   command_unbind("umode", (SIGNAL_FUNC) command_self);
1083   command_unbind("invite", (SIGNAL_FUNC) command_self);
1084   command_unbind("kill", (SIGNAL_FUNC) command_self);
1085   command_unbind("kick", (SIGNAL_FUNC) command_self);
1086   command_unbind("info", (SIGNAL_FUNC) command_self);
1087   command_unbind("ping", (SIGNAL_FUNC) command_self);
1088   command_unbind("motd", (SIGNAL_FUNC) command_self);
1089   command_unbind("ban", (SIGNAL_FUNC) command_self);
1090   command_unbind("close", (SIGNAL_FUNC) command_self);
1091   command_unbind("shutdown", (SIGNAL_FUNC) command_self);
1092   command_unbind("getkey", (SIGNAL_FUNC) command_self);
1093   command_unbind("sconnect", (SIGNAL_FUNC) command_sconnect);
1094   command_unbind("file", (SIGNAL_FUNC) command_file);
1095   command_unbind("detach", (SIGNAL_FUNC) command_self);
1096   command_unbind("watch", (SIGNAL_FUNC) command_self);
1097   command_unbind("stats", (SIGNAL_FUNC) command_self);
1098   command_unbind("attr", (SIGNAL_FUNC) command_attr);
1099   command_unbind("smsg", (SIGNAL_FUNC) command_smsg);
1100 }
1101
1102 void silc_server_free_ftp(SILC_SERVER_REC *server,
1103                           SilcClientEntry client_entry)
1104 {
1105   FtpSession ftp;
1106
1107   silc_dlist_start(server->ftp_sessions);
1108   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
1109     if (ftp->client_entry == client_entry) {
1110       silc_dlist_del(server->ftp_sessions, ftp);
1111       silc_free(ftp->filepath);
1112       silc_free(ftp);
1113     }
1114   }
1115 }
1116
1117 bool silc_term_utf8(void)
1118 {
1119   const char *str;
1120   str = settings_get_str("term_type");
1121   if (str)
1122     if (g_strcasecmp(str, "utf-8") == 0)
1123       return TRUE;
1124   return FALSE;
1125 }