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

   1 /*
   2   silc-server.c : irssi
   3
   4   Copyright (C) 2000 - 2007 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 #include "channels-setup.h"
  37
  38 #include "client_ops.h"
  39 #include "silc-servers.h"
  40 #include "silc-channels.h"
  41 #include "silc-queries.h"
  42 #include "silc-nicklist.h"
  43 #include "silc-cmdqueue.h"
  44 #include "window-item-def.h"
  45
  46 #include "fe-common/core/printtext.h"
  47 #include "fe-common/core/fe-channels.h"
  48 #include "fe-common/core/keyboard.h"
  49 #include "fe-common/silc/module-formats.h"
  50
  51 #include "silc-commands.h"
  52
  53 void silc_servers_reconnect_init(void);
  54 void silc_servers_reconnect_deinit(void);
  55
  56 int silc_send_channel(SILC_SERVER_REC *server,
  57                       char *channel, char *msg,
  58                       SilcMessageFlags flags)
  59 {
  60   SILC_CHANNEL_REC *rec;
  61
  62   rec = silc_channel_find(server, channel);
  63   if (rec == NULL || rec->entry == NULL) {
  64     cmd_return_error_value(CMDERR_NOT_JOINED, FALSE);
  65   }
  66
  67   return silc_client_send_channel_message(silc_client, server->conn,
  68                                           rec->entry, NULL, flags, sha1hash,
  69                                           msg, strlen(msg));
  70 }
  71
  72 typedef struct {
  73   char *nick;
  74   char *msg;
  75   int len;
  76   SilcMessageFlags flags;
  77   SILC_SERVER_REC *server;
  78 } PRIVMSG_REC;
  79
  80 /* Callback function that sends the private message if the client was
  81    resolved from the server. */
  82
  83 static void silc_send_msg_clients(SilcClient client,
  84                                   SilcClientConnection conn,
  85                                   SilcStatus status,
  86                                   SilcDList clients,
  87                                   void *context)
  88 {
  89   PRIVMSG_REC *rec = context;
  90   SILC_SERVER_REC *server = rec->server;
  91   SilcClientEntry target;
  92
  93   if (!clients) {
  94     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR,
  95               "%s: There is no such client", rec->nick);
  96     goto out;
  97   }
  98
  99   /* Find the correct one. The rec->nick might be a formatted nick
 100      so this will find the correct one. */
 101   target = silc_dlist_get(clients);
 102   clients = silc_client_get_clients_local(silc_client, server->conn,
 103                                           rec->nick, FALSE);
 104   if (!clients) {
 105     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR,
 106               "%s: There is no such client (did you mean %s?)", rec->nick,
 107               target->nickname);
 108     goto out;
 109   }
 110
 111   /* Send the private message */
 112   silc_dlist_start(clients);
 113   target = silc_dlist_get(clients);
 114   silc_client_send_private_message(client, conn, target, rec->flags, sha1hash,
 115                                    rec->msg, rec->len);
 116
 117  out:
 118   silc_client_list_free(silc_client, server->conn, clients);
 119   g_free(rec->nick);
 120   g_free(rec->msg);
 121   g_free(rec);
 122 }
 123
 124 int silc_send_msg(SILC_SERVER_REC *server, char *nick, char *msg,
 125                   int msg_len, SilcMessageFlags flags)
 126 {
 127   PRIVMSG_REC *rec;
 128   SilcDList clients;
 129   SilcClientEntry target;
 130   int ret;
 131
 132   /* Find client entry */
 133   clients = silc_client_get_clients_local(silc_client, server->conn, nick,
 134                                           FALSE);
 135   if (!clients) {
 136     char *nickname = NULL;
 137
 138     rec = g_new0(PRIVMSG_REC, 1);
 139     rec->nick = g_strdup(nick);
 140     rec->msg = g_strdup(msg);
 141     rec->server = server;
 142     rec->flags = flags;
 143     rec->len = msg_len;
 144
 145     silc_client_nickname_parse(silc_client, server->conn, nick, &nickname);
 146     if (!nickname)
 147       nickname = strdup(nick);
 148
 149     /* Could not find client with that nick, resolve it from server. */
 150     silc_client_get_clients_whois(silc_client, server->conn, nickname,
 151                                   NULL, NULL, silc_send_msg_clients, rec);
 152     silc_free(nickname);
 153     return TRUE;
 154   }
 155
 156   /* Send the private message directly */
 157   target = silc_dlist_get(clients);
 158   ret = silc_client_send_private_message(silc_client, server->conn,
 159                                          target, flags, sha1hash,
 160                                          msg, msg_len);
 161
 162   silc_client_list_free(silc_client, server->conn, clients);
 163
 164   return ret;
 165 }
 166
 167 void silc_send_mime(SILC_SERVER_REC *server, int channel, const char *to,
 168                     const char *data, int sign)
 169 {
 170   char *unescaped_data;
 171   SilcUInt32 unescaped_data_len;
 172   int target_type;
 173
 174   if (!(IS_SILC_SERVER(server)) || (data == NULL) || (to == NULL))
 175     return;
 176
 177   if (channel) {
 178     target_type = SEND_TARGET_CHANNEL;
 179   } else {
 180     target_type = server_ischannel(SERVER(server), to) ?
 181       SEND_TARGET_CHANNEL : SEND_TARGET_NICK;
 182   }
 183
 184   unescaped_data = silc_unescape_data(data, &unescaped_data_len);
 185
 186   if (target_type == SEND_TARGET_CHANNEL) {
 187     SILC_CHANNEL_REC *rec;
 188
 189     rec = silc_channel_find(server, to);
 190     if (rec == NULL || rec->entry == NULL) {
 191       cmd_return_error(CMDERR_NOT_JOINED);
 192     }
 193
 194     silc_client_send_channel_message(silc_client, server->conn, rec->entry,
 195                                      NULL, SILC_MESSAGE_FLAG_DATA |
 196                                      (sign ? SILC_MESSAGE_FLAG_SIGNED : 0),
 197                                      sha1hash, unescaped_data,
 198                                      unescaped_data_len);
 199   } else {
 200     silc_send_msg(server, (char *)to, unescaped_data, unescaped_data_len,
 201                   SILC_MESSAGE_FLAG_DATA |
 202                   (sign ? SILC_MESSAGE_FLAG_SIGNED : 0));
 203
 204   }
 205
 206   signal_stop();
 207
 208   silc_free(unescaped_data);
 209 }
 210
 211 static int isnickflag_func(SERVER_REC *server, char flag)
 212 {
 213   return flag == '@' || flag == '+';
 214 }
 215
 216 static int ischannel_func(SERVER_REC *server, const char *data)
 217 {
 218   return FALSE;
 219 }
 220
 221 const char *get_nick_flags(SERVER_REC *server)
 222 {
 223   return "@\0\0";
 224 }
 225
 226 static void send_message(SILC_SERVER_REC *server, char *target,
 227                          char *msg, int target_type)
 228 {
 229   char *message = NULL, *t = NULL;
 230   int len;
 231   SilcBool sign;
 232
 233   g_return_if_fail(server != NULL);
 234   g_return_if_fail(target != NULL);
 235   g_return_if_fail(msg != NULL);
 236
 237   if (!silc_term_utf8()) {
 238     len = silc_utf8_encoded_len(msg, strlen(msg), SILC_STRING_LOCALE);
 239     message = silc_calloc(len + 1, sizeof(*message));
 240     g_return_if_fail(message != NULL);
 241     silc_utf8_encode(msg, strlen(msg), SILC_STRING_LOCALE, message, len);
 242   }
 243
 244   if (target_type == SEND_TARGET_CHANNEL) {
 245     sign = settings_get_bool("sign_channel_messages");
 246     silc_send_channel(server, target, message ? message : msg,
 247                       SILC_MESSAGE_FLAG_UTF8 |
 248                       (sign ? SILC_MESSAGE_FLAG_SIGNED : 0));
 249   } else {
 250     sign = settings_get_bool("sign_private_messages");
 251     if (!silc_term_utf8()) {
 252       len = silc_utf8_encoded_len(target, strlen(target), SILC_STRING_LOCALE);
 253       t = silc_calloc(len + 1, sizeof(*t));
 254       g_return_if_fail(t != NULL);
 255       silc_utf8_encode(target, strlen(target), SILC_STRING_LOCALE, t, len);
 256     }
 257
 258     silc_send_msg(server, t ? t : target, message ? message : msg,
 259                   message ? strlen(message) : strlen(msg),
 260                   SILC_MESSAGE_FLAG_UTF8 |
 261                   (sign ? SILC_MESSAGE_FLAG_SIGNED : 0));
 262   }
 263
 264   silc_free(message);
 265   silc_free(t);
 266 }
 267
 268 /* Connection callback */
 269
 270 static void silc_connect_cb(SilcClient client,
 271                             SilcClientConnection conn,
 272                             SilcClientConnectionStatus status,
 273                             SilcStatus error,
 274                             const char *message,
 275                             void *context)
 276 {
 277   SILC_SERVER_REC *server = context;
 278   FtpSession ftp;
 279   char *file;
 280
 281   SILC_LOG_DEBUG(("Connection callback %p, status %d, error %d, message %s",
 282                   conn, status, error, message ? message : "N/A"));
 283
 284   server->op = NULL;
 285
 286   switch (status) {
 287   case SILC_CLIENT_CONN_SUCCESS:
 288     if (server->disconnected) {
 289       silc_client_close_connection(client, conn);
 290       return;
 291     }
 292
 293     /* We have successfully connected to server */
 294
 295     /* Enable queueing until we have our requested nick */
 296     if (((opt_nickname &&
 297           !silc_utf8_strcasecmp(opt_nickname,
 298                                 conn->local_entry->nickname)) ||
 299          (settings_get_str("nick") &&
 300           !silc_utf8_strcasecmp(settings_get_str("nick"),
 301                                 conn->local_entry->nickname))) &&
 302         silc_utf8_strcasecmp(conn->local_entry->nickname,
 303                              conn->local_entry->username))
 304       silc_queue_enable(conn);
 305
 306     /* Put default attributes */
 307     silc_query_attributes_default(silc_client, conn);
 308
 309     server->connected = TRUE;
 310     server->conn = conn;
 311     server->conn->context = server;
 312     signal_emit("event connected", 1, server);
 313     break;
 314
 315   case SILC_CLIENT_CONN_SUCCESS_RESUME:
 316     if (server->disconnected) {
 317       silc_client_close_connection(client, conn);
 318       return;
 319     }
 320
 321     /* We have successfully resumed old detached session */
 322     server->connected = TRUE;
 323     server->conn = conn;
 324     server->conn->context = server;
 325     signal_emit("event connected", 1, server);
 326
 327     /* Put default attributes */
 328     silc_query_attributes_default(silc_client, conn);
 329
 330     /* Remove the detach data now */
 331     file = silc_get_session_filename(server);
 332     unlink(file);
 333     silc_free(file);
 334     break;
 335
 336   case SILC_CLIENT_CONN_DISCONNECTED:
 337     /* Server disconnected */
 338     if (server->conn && server->conn->local_entry) {
 339       nicklist_rename_unique(SERVER(server),
 340                              server->conn->local_entry, server->nick,
 341                              server->conn->local_entry,
 342                              silc_client->username);
 343       silc_change_nick(server, silc_client->username);
 344     }
 345
 346     if (message)
 347       silc_say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
 348                "Server closed connection: %s (%d) %s",
 349                silc_get_status_message(error), error,
 350                message ? message : "");
 351
 352     /* Close FTP sessions */
 353     silc_dlist_start(server->ftp_sessions);
 354     while ((ftp = silc_dlist_get(server->ftp_sessions)))
 355       silc_client_file_close(client, conn, ftp->session_id);
 356     silc_dlist_uninit(server->ftp_sessions);
 357
 358     if (server->conn)
 359       server->conn->context = NULL;
 360     server->conn = NULL;
 361     server->connection_lost = TRUE;
 362     if (!server->disconnected)
 363       server_disconnect(SERVER(server));
 364     server_unref(SERVER(server));
 365     break;
 366
 367   default:
 368     file = silc_get_session_filename(server);
 369     if (silc_file_size(file) > 0)
 370       printformat_module("fe-common/silc", server, NULL,
 371                          MSGLEVEL_CRAP, SILCTXT_REATTACH_FAILED, file);
 372     silc_free(file);
 373
 374     server->connection_lost = TRUE;
 375     server->conn = NULL;
 376     if (server->conn)
 377       server->conn->context = NULL;
 378     if (!server->disconnected)
 379       server_disconnect(SERVER(server));
 380     server_unref(SERVER(server));
 381     break;
 382   }
 383 }
 384
 385 /* Called after TCP stream has been created */
 386
 387 static void sig_connected_stream_created(SilcSocketStreamStatus status,
 388                                          SilcStream stream, void *context)
 389 {
 390   SILC_SERVER_REC *server = context;
 391   SilcClientConnectionParams params;
 392   char *file;
 393
 394   server->tcp_op = NULL;
 395   if (!stream) {
 396     server->connection_lost = TRUE;
 397     server_disconnect(SERVER(server));
 398     return;
 399   }
 400
 401   if (server->disconnected) {
 402     silc_stream_destroy(stream);
 403     return;
 404   }
 405
 406   /* Set connection parameters */
 407   memset(&params, 0, sizeof(params));
 408   params.nickname = (opt_nickname ? (char *)opt_nickname :
 409                      (char *)settings_get_str("nick"));
 410   params.timeout_secs = settings_get_int("key_exchange_timeout_secs");
 411   params.rekey_secs = settings_get_int("key_exchange_rekey_secs");
 412   params.pfs = settings_get_bool("key_exchange_rekey_pfs");
 413
 414   /* Try to read detached session data and use it if found. */
 415   file = silc_get_session_filename(server);
 416   params.detach_data = silc_file_readfile(file, &params.detach_data_len);
 417   if (params.detach_data)
 418     params.detach_data[params.detach_data_len] = 0;
 419   if (params.detach_data)
 420     printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
 421                         SILCTXT_REATTACH, server->tag);
 422   silc_free(file);
 423
 424   /* Start key exchange */
 425   server->op = silc_client_key_exchange(silc_client, &params,
 426                                         irssi_pubkey, irssi_privkey,
 427                                         stream, SILC_CONN_SERVER,
 428                                         silc_connect_cb, server);
 429   if (!server->op) {
 430     server->connection_lost = TRUE;
 431     server_disconnect(SERVER(server));
 432     silc_stream_destroy(stream);
 433     return;
 434   }
 435
 436   server_ref(SERVER(server));
 437   server->ftp_sessions = silc_dlist_init();
 438   server->isnickflag = isnickflag_func;
 439   server->ischannel = ischannel_func;
 440   server->get_nick_flags = get_nick_flags;
 441   server->send_message = (void *) send_message;
 442 }
 443
 444 static void sig_connected(SILC_SERVER_REC *server)
 445 {
 446   int fd;
 447
 448   if (!IS_SILC_SERVER(server))
 449     return;
 450
 451   /* Wrap the socket to TCP stream */
 452   fd = g_io_channel_unix_get_fd(net_sendbuffer_handle(server->handle));
 453   server->tcp_op =
 454     silc_socket_tcp_stream_create(fd, TRUE, FALSE,
 455                                   silc_client->schedule,
 456                                   sig_connected_stream_created, server);
 457 }
 458
 459 static void sig_disconnected(SILC_SERVER_REC *server)
 460 {
 461   if (!IS_SILC_SERVER(server))
 462     return;
 463
 464   if (server->conn) {
 465     /* Close connection */
 466     silc_client_close_connection(silc_client, server->conn);
 467   } else if (server->op) {
 468     /* Abort on going connecting (key exchange) */
 469     silc_async_abort(server->op, NULL, NULL);
 470     server->op = NULL;
 471   } else if (server->tcp_op) {
 472     /* Abort on going TCP stream creation */
 473     silc_async_abort(server->tcp_op, NULL, NULL);
 474     server->tcp_op = NULL;
 475   }
 476
 477   /* SILC closes the handle */
 478   if (server->handle) {
 479     g_io_channel_unref(net_sendbuffer_handle(server->handle));
 480     net_sendbuffer_destroy(server->handle, FALSE);
 481     server->handle = NULL;
 482   }
 483 }
 484
 485 SERVER_REC *silc_server_init_connect(SERVER_CONNECT_REC *conn)
 486 {
 487   SILC_SERVER_REC *server;
 488
 489   g_return_val_if_fail(IS_SILC_SERVER_CONNECT(conn), NULL);
 490   if (conn->address == NULL || *conn->address == '\0')
 491     return NULL;
 492   if (conn->nick == NULL || *conn->nick == '\0') {
 493     silc_say_error("Cannot connect: nickname is not set");
 494     return NULL;
 495   }
 496
 497   server = g_new0(SILC_SERVER_REC, 1);
 498   server->chat_type = SILC_PROTOCOL;
 499   server->connrec = (SILC_SERVER_CONNECT_REC *)conn;
 500   server_connect_ref(conn);
 501
 502   if (server->connrec->port <= 0)
 503     server->connrec->port = 706;
 504
 505   server_connect_init((SERVER_REC *)server);
 506   return (SERVER_REC *)server;
 507 }
 508
 509 void silc_server_connect(SERVER_REC *server)
 510 {
 511   if (!server_start_connect(server)) {
 512     server_connect_unref(server->connrec);
 513     g_free(server);
 514     return;
 515   }
 516 }
 517
 518 /* Return a string of all channels in server in server->channels_join()
 519    format */
 520
 521 char *silc_server_get_channels(SILC_SERVER_REC *server)
 522 {
 523   GSList *tmp;
 524   GString *chans;
 525   char *ret;
 526
 527   g_return_val_if_fail(server != NULL, FALSE);
 528
 529   chans = g_string_new(NULL);
 530   for (tmp = server->channels; tmp != NULL; tmp = tmp->next) {
 531     CHANNEL_REC *channel = tmp->data;
 532     CHANNEL_SETUP_REC *schannel;
 533
 534     if ((schannel = channel_setup_find(channel->name, server->connrec->chatnet)) &&
 535         schannel->password)
 536       g_string_sprintfa(chans, "%s %s,", channel->name,
 537                         schannel->password);
 538     else
 539       g_string_sprintfa(chans, "%s,", channel->name);
 540   }
 541
 542   if (chans->len > 0)
 543     g_string_truncate(chans, chans->len-1);
 544
 545   ret = chans->str;
 546   g_string_free(chans, FALSE);
 547
 548   return ret;
 549 }
 550
 551 /* Syntaxes of all SILC commands for HELP files (the help file generation
 552    will snoop these from here). */
 553
 554 /* SYNTAX: BAN <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 555 /* SYNTAX: CMODE <channel> +|-<modes> [{ <arguments>}] */
 556 /* SYNTAX: CUMODE <channel> +|-<modes> <nickname>[@<hostname>] */
 557 /* SYNTAX: GETKEY <nickname or server name> */
 558 /* SYNTAX: INVITE <channel> [<nickname>[@hostname>] */
 559 /* SYNTAX: INVITE <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 560 /* SYNTAX: KEY MSG <nickname> set|unset|list|agreement|negotiate [<arguments>] */
 561 /* SYNTAX: KEY CHANNEL <channel> set|unset|list|change [<arguments>] */
 562 /* SYNTAX: KICK <channel> <nickname>[@<hostname>] [<comment>] */
 563 /* SYNTAX: KILL <nickname>[@<hostname>] [<comment>] [-pubkey] */
 564 /* SYNTAX: OPER <username> [-pubkey] */
 565 /* SYNTAX: SILCOPER <username> [-pubkey] */
 566 /* SYNTAX: TOPIC <channel> [<topic>] */
 567 /* SYNTAX: UMODE +|-<modes> */
 568 /* SYNTAX: WHOIS [<nickname>[@<hostname>]] [-details] [-pubkey <pubkeyfile>] [<count>] */
 569 /* SYNTAX: WHOWAS <nickname>[@<hostname>] [<count>] */
 570 /* SYNTAX: CLOSE <server> [<port>] */
 571 /* SYNTAX: MOTD [<server>] */
 572 /* SYNTAX: LIST [<channel>] */
 573 /* SYNTAX: ME <message> */
 574 /* SYNTAX: ACTION [-sign] [-channel] <target> <message> */
 575 /* SYNTAX: AWAY [<message>] */
 576 /* SYNTAX: INFO [<server>] */
 577 /* SYNTAX: NICK <nickname> */
 578 /* SYNTAX: NOTICE [-sign] [-channel] <target> <message> */
 579 /* SYNTAX: PART [<channel>] */
 580 /* SYNTAX: PING */
 581 /* SYNTAX: USERS <channel> */
 582 /* SYNTAX: FILE SEND <filepath> <nickname> [<local IP> [<local port>]] [-no-listener]*/
 583 /* SYNTAX: FILE ACCEPT [<nickname>] */
 584 /* SYNTAX: FILE CLOSE [<nickname>] */
 585 /* SYNTAX: FILE */
 586 /* SYNTAX: JOIN <channel> [<passphrase>] [-cipher <cipher>] [-hmac <hmac>] [-founder] [-auth [<pubkeyfile> <privkeyfile> [<privkey passphrase>]]]*/
 587 /* SYNTAX: DETACH */
 588 /* SYNTAX: WATCH [<-add | -del> <nickname>] [-pubkey +|-<pubkeyfile>] */
 589 /* SYNTAX: STATS */
 590 /* SYNTAX: ATTR [<-del> <option> [{ <value>}]] */
 591 /* SYNTAX: SMSG [<-channel>] <target> <message> */
 592 /* SYNTAX: LISTKEYS [-servers] [-clients] [<public key file>] */
 593
 594 void silc_command_exec(SILC_SERVER_REC *server,
 595                        const char *command, const char *args)
 596 {
 597   char *data;
 598   g_return_if_fail(server != NULL);
 599
 600   /* Call the command */
 601   data = g_strconcat(command, " ", args, NULL);
 602   silc_queue_command_call(silc_client, server->conn, data);
 603   g_free(data);
 604 }
 605
 606 /* Generic command function to call any SILC command directly. */
 607
 608 static void command_self(const char *data, SILC_SERVER_REC *server,
 609                          WI_ITEM_REC *item)
 610 {
 611   CMD_SILC_SERVER(server);
 612
 613   if (!IS_SILC_SERVER(server) || !server->connected) {
 614     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 615     return;
 616   }
 617
 618   if (IS_SILC_CHANNEL(item)) {
 619     SILC_CHANNEL_REC *chanrec;
 620     chanrec = silc_channel_find(server, item->visible_name);
 621     if (chanrec)
 622       server->conn->current_channel = chanrec->entry;
 623   }
 624
 625   silc_command_exec(server, current_command, data);
 626   signal_stop();
 627 }
 628
 629 /* SMSG command, to send digitally signed messages */
 630
 631 static void command_smsg(const char *data, SILC_SERVER_REC *server,
 632                          WI_ITEM_REC *item)
 633 {
 634   GHashTable *optlist;
 635   char *target, *origtarget, *msg;
 636   void *free_arg;
 637   int free_ret, target_type;
 638
 639   g_return_if_fail(data != NULL);
 640   if (server == NULL || !server->connected)
 641     cmd_param_error(CMDERR_NOT_CONNECTED);
 642
 643   if (!cmd_get_params(data, &free_arg, 2 | PARAM_FLAG_OPTIONS |
 644                       PARAM_FLAG_UNKNOWN_OPTIONS | PARAM_FLAG_GETREST,
 645                       "msg", &optlist, &target, &msg))
 646     return;
 647   if (*target == '\0' || *msg == '\0')
 648     cmd_param_error(CMDERR_NOT_ENOUGH_PARAMS);
 649
 650   origtarget = target;
 651   free_ret = FALSE;
 652
 653   if (strcmp(target, "*") == 0) {
 654     if (item == NULL)
 655       cmd_param_error(CMDERR_NOT_JOINED);
 656
 657     target_type = IS_CHANNEL(item) ?
 658       SEND_TARGET_CHANNEL : SEND_TARGET_NICK;
 659     target = (char *) window_item_get_target(item);
 660   } else if (g_hash_table_lookup(optlist, "channel") != NULL) {
 661     target_type = SEND_TARGET_CHANNEL;
 662   } else {
 663     target_type = server_ischannel(SERVER(server), target) ?
 664       SEND_TARGET_CHANNEL : SEND_TARGET_NICK;
 665   }
 666
 667   if (target != NULL) {
 668     char *message = NULL, *t = NULL;
 669     int len, result;
 670
 671     if (!silc_term_utf8()) {
 672       len = silc_utf8_encoded_len(msg, strlen(msg), SILC_STRING_LOCALE);
 673       message = silc_calloc(len + 1, sizeof(*message));
 674       g_return_if_fail(message != NULL);
 675       silc_utf8_encode(msg, strlen(msg), SILC_STRING_LOCALE, message, len);
 676     }
 677
 678     if (target_type == SEND_TARGET_CHANNEL)
 679       result = silc_send_channel(server, target, message ? message : msg,
 680                                  SILC_MESSAGE_FLAG_UTF8 |
 681                                  SILC_MESSAGE_FLAG_SIGNED);
 682     else {
 683       if (!silc_term_utf8()) {
 684         len = silc_utf8_encoded_len(target, strlen(target),
 685                                     SILC_STRING_LOCALE);
 686         t = silc_calloc(len + 1, sizeof(*t));
 687         g_return_if_fail(t != NULL);
 688         silc_utf8_encode(target, strlen(target), SILC_STRING_LOCALE, t, len);
 689       }
 690       result = silc_send_msg(server, t ? t : target, message ? message : msg,
 691                              message ? strlen(message) : strlen(msg),
 692                              SILC_MESSAGE_FLAG_UTF8 |
 693                              SILC_MESSAGE_FLAG_SIGNED);
 694     }
 695     silc_free(message);
 696     silc_free(t);
 697     if (!result)
 698       goto out;
 699   }
 700
 701   signal_emit(target != NULL && target_type == SEND_TARGET_CHANNEL ?
 702               "message signed_own_public" : "message signed_own_private", 4,
 703               server, msg, target, origtarget);
 704 out:
 705   if (free_ret && target != NULL) g_free(target);
 706   cmd_params_free(free_arg);
 707 }
 708
 709 /* FILE command */
 710
 711 SILC_TASK_CALLBACK(silc_client_file_close_later)
 712 {
 713   FtpSession ftp = (FtpSession)context;
 714
 715   SILC_LOG_DEBUG(("Start"));
 716
 717   silc_client_file_close(silc_client, ftp->conn, ftp->session_id);
 718   silc_free(ftp->filepath);
 719   silc_free(ftp);
 720 }
 721
 722 static void silc_client_file_monitor(SilcClient client,
 723                                      SilcClientConnection conn,
 724                                      SilcClientMonitorStatus status,
 725                                      SilcClientFileError error,
 726                                      SilcUInt64 offset,
 727                                      SilcUInt64 filesize,
 728                                      SilcClientEntry client_entry,
 729                                      SilcUInt32 session_id,
 730                                      const char *filepath,
 731                                      void *context)
 732 {
 733   SILC_SERVER_REC *server = (SILC_SERVER_REC *)context;
 734   FtpSession ftp;
 735   char fsize[32];
 736
 737   if (status == SILC_CLIENT_FILE_MONITOR_CLOSED)
 738     return;
 739
 740   snprintf(fsize, sizeof(fsize) - 1, "%llu", ((filesize + 1023) / 1024));
 741
 742   silc_dlist_start(server->ftp_sessions);
 743   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 744     if (ftp->session_id == session_id) {
 745       if (!ftp->filepath && filepath)
 746         ftp->filepath = strdup(filepath);
 747       break;
 748     }
 749   }
 750
 751   if (ftp == SILC_LIST_END)
 752     return;
 753
 754   if (status == SILC_CLIENT_FILE_MONITOR_ERROR ||
 755       status == SILC_CLIENT_FILE_MONITOR_DISCONNECT) {
 756     if (error == SILC_CLIENT_FILE_NO_SUCH_FILE)
 757       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 758                          SILCTXT_FILE_ERROR_NO_SUCH_FILE,
 759                          client_entry->nickname,
 760                          filepath ? filepath : "[N/A]");
 761     else if (error == SILC_CLIENT_FILE_PERMISSION_DENIED)
 762       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 763                          SILCTXT_FILE_ERROR_PERMISSION_DENIED,
 764                          client_entry->nickname);
 765     else
 766       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 767                          SILCTXT_FILE_ERROR, client_entry->nickname);
 768     silc_schedule_task_add_timeout(silc_client->schedule,
 769                                    silc_client_file_close_later, ftp,
 770                                    1, 0);
 771     silc_dlist_del(server->ftp_sessions, ftp);
 772     if (ftp == server->current_session) {
 773       server->current_session = NULL;
 774       silc_dlist_start(server->ftp_sessions);
 775       server->current_session = silc_dlist_get(server->ftp_sessions);
 776     }
 777   }
 778
 779   if (status == SILC_CLIENT_FILE_MONITOR_KEY_AGREEMENT) {
 780     printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 781                        SILCTXT_FILE_KEY_EXCHANGE, client_entry->nickname);
 782   }
 783
 784   /* Save some transmission data */
 785   if (offset && filesize) {
 786     unsigned long delta = time(NULL) - ftp->starttime;
 787
 788     ftp->percent = ((double)offset / (double)filesize) * (double)100.0;
 789     if (delta)
 790       ftp->kps = (double)((offset / (double)delta) + 1023) / (double)1024;
 791     else
 792       ftp->kps = (double)(offset + 1023) / (double)1024;
 793     ftp->offset = offset;
 794     ftp->filesize = filesize;
 795   }
 796
 797   if (status == SILC_CLIENT_FILE_MONITOR_SEND) {
 798     if (offset == 0) {
 799       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 800                          SILCTXT_FILE_TRANSMIT, filepath, fsize,
 801                          client_entry->nickname);
 802       ftp->starttime = time(NULL);
 803     }
 804     if (offset == filesize) {
 805       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 806                          SILCTXT_FILE_TRANSMITTED, filepath, fsize,
 807                          client_entry->nickname, ftp->kps);
 808       silc_schedule_task_add_timeout(silc_client->schedule,
 809                                      silc_client_file_close_later, ftp,
 810                                      1, 0);
 811       silc_dlist_del(server->ftp_sessions, ftp);
 812       if (ftp == server->current_session) {
 813         server->current_session = NULL;
 814         silc_dlist_start(server->ftp_sessions);
 815         server->current_session = silc_dlist_get(server->ftp_sessions);
 816       }
 817
 818     }
 819   }
 820
 821   if (status == SILC_CLIENT_FILE_MONITOR_RECEIVE) {
 822     if (offset == 0) {
 823       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 824                          SILCTXT_FILE_RECEIVE, filepath, fsize,
 825                          client_entry->nickname);
 826       ftp->starttime = time(NULL);
 827     }
 828
 829     if (offset == filesize) {
 830       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 831                          SILCTXT_FILE_RECEIVED, filepath, fsize,
 832                          client_entry->nickname, ftp->kps);
 833       silc_schedule_task_add_timeout(silc_client->schedule,
 834                                      silc_client_file_close_later, ftp,
 835                                      1, 0);
 836       silc_dlist_del(server->ftp_sessions, ftp);
 837       if (ftp == server->current_session) {
 838         server->current_session = NULL;
 839         silc_dlist_start(server->ftp_sessions);
 840         server->current_session = silc_dlist_get(server->ftp_sessions);
 841       }
 842
 843     }
 844   }
 845 }
 846
 847 typedef struct {
 848   SILC_SERVER_REC *server;
 849   char *data;
 850   char *nick;
 851   WI_ITEM_REC *item;
 852 } *FileGetClients;
 853
 854 static void silc_client_command_file_get_clients(SilcClient client,
 855                                                  SilcClientConnection conn,
 856                                                  SilcStatus status,
 857                                                  SilcDList clients,
 858                                                  void *context)
 859 {
 860   FileGetClients internal = (FileGetClients)context;
 861
 862   if (!clients) {
 863     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR,
 864               "There was no such nickname: %s", internal->nick);
 865     silc_free(internal->data);
 866     silc_free(internal->nick);
 867     silc_free(internal);
 868     return;
 869   }
 870
 871   signal_emit("command file", 3, internal->data, internal->server,
 872               internal->item);
 873
 874   silc_free(internal->data);
 875   silc_free(internal->nick);
 876   silc_free(internal);
 877 }
 878
 879 static void command_file(const char *data, SILC_SERVER_REC *server,
 880                          WI_ITEM_REC *item)
 881 {
 882   SilcClientConnection conn;
 883   SilcClientEntry client_entry;
 884   SilcDList entries;
 885   SilcClientFileError ret;
 886   char *nickname = NULL, *tmp;
 887   unsigned char **argv;
 888   SilcUInt32 argc;
 889   SilcUInt32 *argv_lens, *argv_types;
 890   int type = 0;
 891   FtpSession ftp;
 892   char *local_ip = NULL;
 893   SilcUInt32 local_port = 0;
 894   SilcUInt32 session_id;
 895   bool do_not_bind = FALSE;
 896   SilcClientConnectionParams params;
 897
 898   CMD_SILC_SERVER(server);
 899   if (!server || !IS_SILC_SERVER(server) || !server->connected)
 900     cmd_return_error(CMDERR_NOT_CONNECTED);
 901
 902   conn = server->conn;
 903
 904   /* Now parse all arguments */
 905   tmp = g_strconcat("FILE", " ", data, NULL);
 906   silc_parse_command_line(tmp, &argv, &argv_lens, &argv_types, &argc, 7);
 907   g_free(tmp);
 908
 909   if (argc == 1)
 910     type = 4;
 911
 912   if (argc >= 2) {
 913     if (!strcasecmp(argv[1], "send"))
 914       type = 1;
 915     if (!strcasecmp(argv[1], "accept"))
 916       type = 2;
 917     if (!strcasecmp(argv[1], "close"))
 918       type = 3;
 919   }
 920
 921   if (type == 0)
 922     cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 923
 924   switch (type) {
 925   case 1:
 926     if (argc < 4)
 927       cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 928
 929     /* Parse the typed nickname. */
 930     silc_client_nickname_parse(silc_client, conn, argv[3], &nickname);
 931     if (!nickname)
 932       nickname = strdup(argv[3]);
 933
 934     /* Find client entry */
 935     entries = silc_client_get_clients_local(silc_client, conn, argv[3], FALSE);
 936     if (!entries) {
 937       FileGetClients inter = silc_calloc(1, sizeof(*inter));
 938       inter->server = server;
 939       inter->data = strdup(data);
 940       inter->nick = strdup(nickname);
 941       inter->item = item;
 942       silc_client_get_clients(silc_client, conn, nickname, NULL,
 943                               silc_client_command_file_get_clients, inter);
 944       goto out;
 945     }
 946     silc_dlist_start(entries);
 947     client_entry = silc_dlist_get(entries);
 948
 949     if (argc >= 5) {
 950       if (!strcasecmp(argv[4], "-no-listener"))
 951         do_not_bind = TRUE;
 952       else
 953         local_ip = argv[4];
 954     }
 955     if (argc >= 6) {
 956       if (!strcasecmp(argv[5], "-no-listener"))
 957         do_not_bind = TRUE;
 958       else
 959         local_port = atoi(argv[5]);
 960     }
 961     if (argc >= 7) {
 962       if (!strcasecmp(argv[6], "-no-listener"))
 963         do_not_bind = TRUE;
 964     }
 965
 966     memset(&params, 0, sizeof(params));
 967     if (!do_not_bind) {
 968       if (local_ip)
 969         params.local_ip = strdup(local_ip);
 970       params.local_port = local_port;
 971       if (!params.local_ip && settings_get_bool("use_auto_addr")) {
 972         params.local_ip = (char *)settings_get_str("auto_public_ip");
 973         if ((params.local_ip) && (*params.local_ip == '\0')) {
 974           params.local_ip = silc_net_localip();
 975         } else {
 976           params.bind_ip = (char *)settings_get_str("auto_bind_ip");
 977           if ((params.bind_ip) && (*params.bind_ip == '\0'))
 978             params.bind_ip = NULL;
 979           params.local_port = settings_get_int("auto_bind_port");
 980         }
 981       }
 982       if (!params.local_ip)
 983         params.local_ip = silc_net_localip();
 984     }
 985     params.timeout_secs = settings_get_int("key_exchange_timeout_secs");
 986
 987     ret = silc_client_file_send(silc_client, conn, client_entry, &params,
 988                                 irssi_pubkey, irssi_privkey,
 989                                 silc_client_file_monitor, server, argv[2],
 990                                 &session_id);
 991     if (ret == SILC_CLIENT_FILE_OK) {
 992       ftp = silc_calloc(1, sizeof(*ftp));
 993       ftp->session_id = session_id;
 994
 995       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 996                          SILCTXT_FILE_SEND, client_entry->nickname,
 997                          argv[2]);
 998
 999       ftp->client_entry = client_entry;
1000       ftp->filepath = strdup(argv[2]);
1001       ftp->conn = conn;
1002       ftp->send = TRUE;
1003       silc_dlist_add(server->ftp_sessions, ftp);
1004       server->current_session = ftp;
1005     } else {
1006       if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
1007         printformat_module("fe-common/silc", server, NULL,
1008                            MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
1009                            client_entry->nickname);
1010       if (ret == SILC_CLIENT_FILE_NO_SUCH_FILE)
1011         printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
1012                            SILCTXT_FILE_ERROR_NO_SUCH_FILE,
1013                            client_entry->nickname, argv[2]);
1014     }
1015
1016     silc_client_list_free(silc_client, server->conn, entries);
1017     break;
1018
1019   case 2:
1020     /* Parse the typed nickname. */
1021     if (argc >= 3) {
1022       /* Parse the typed nickname. */
1023       silc_client_nickname_parse(silc_client, conn, argv[2], &nickname);
1024       if (!nickname)
1025         nickname = strdup(argv[2]);
1026
1027       /* Find client entry */
1028       entries = silc_client_get_clients_local(silc_client, conn, argv[2],
1029                                               FALSE);
1030       if (!entries) {
1031         FileGetClients inter = silc_calloc(1, sizeof(*inter));
1032         inter->server = server;
1033         inter->data = strdup(data);
1034         inter->nick = strdup(nickname);
1035         inter->item = item;
1036         silc_client_get_clients(silc_client, conn, nickname, NULL,
1037                                 silc_client_command_file_get_clients, inter);
1038         goto out;
1039       }
1040       silc_dlist_start(entries);
1041       client_entry = silc_dlist_get(entries);
1042       silc_client_list_free(silc_client, server->conn, entries);
1043     } else {
1044       if (!server->current_session) {
1045         printformat_module("fe-common/silc", server, NULL,
1046                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
1047         goto out;
1048       }
1049
1050       memset(&params, 0, sizeof(params));
1051       if (settings_get_bool("use_auto_addr")) {
1052         params.local_ip = (char *)settings_get_str("auto_public_ip");
1053         if ((params.local_ip) && (*params.local_ip == '\0')) {
1054           params.local_ip = silc_net_localip();
1055         } else {
1056           params.bind_ip = (char *)settings_get_str("auto_bind_ip");
1057           if ((params.bind_ip) && (*params.bind_ip == '\0'))
1058             params.bind_ip = NULL;
1059           params.local_port = settings_get_int("auto_bind_port");
1060         }
1061       }
1062       if (!params.local_ip)
1063         params.local_ip = silc_net_localip();
1064       params.timeout_secs = settings_get_int("key_exchange_timeout_secs");
1065
1066       ret = silc_client_file_receive(silc_client, conn, &params,
1067                                      irssi_pubkey, irssi_privkey,
1068                                      silc_client_file_monitor, server, NULL,
1069                                      server->current_session->session_id,
1070                                      NULL, NULL);
1071       if (ret != SILC_CLIENT_FILE_OK) {
1072         if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
1073           printformat_module("fe-common/silc", server, NULL,
1074                              MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
1075                              server->current_session->client_entry->nickname);
1076         else {
1077           printformat_module("fe-common/silc", server, NULL,
1078                              MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
1079                              server->current_session->client_entry->nickname);
1080
1081           silc_client_file_close(silc_client, conn,
1082                                  server->current_session->session_id);
1083           silc_dlist_del(server->ftp_sessions, server->current_session);
1084           silc_free(server->current_session->filepath);
1085           silc_free(server->current_session);
1086           server->current_session = NULL;
1087
1088           silc_dlist_start(server->ftp_sessions);
1089           server->current_session = silc_dlist_get(server->ftp_sessions);
1090         }
1091       }
1092
1093       goto out;
1094     }
1095
1096     silc_dlist_start(server->ftp_sessions);
1097     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
1098       if (ftp->client_entry == client_entry && !ftp->filepath) {
1099         memset(&params, 0, sizeof(params));
1100         if (settings_get_bool("use_auto_addr")) {
1101           params.local_ip = (char *)settings_get_str("auto_public_ip");
1102           if ((params.local_ip) && (*params.local_ip == '\0')) {
1103             params.local_ip = silc_net_localip();
1104           } else {
1105             params.bind_ip = (char *)settings_get_str("auto_bind_ip");
1106             if ((params.bind_ip) && (*params.bind_ip == '\0'))
1107               params.bind_ip = NULL;
1108             params.local_port = settings_get_int("auto_bind_port");
1109           }
1110         }
1111         if (!params.local_ip)
1112           params.local_ip = silc_net_localip();
1113         params.timeout_secs = settings_get_int("key_exchange_timeout_secs");
1114
1115         ret = silc_client_file_receive(silc_client, conn, &params,
1116                                        irssi_pubkey, irssi_privkey,
1117                                        silc_client_file_monitor, server,
1118                                        NULL, ftp->session_id, NULL, NULL);
1119         if (ret != SILC_CLIENT_FILE_OK) {
1120           if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
1121             printformat_module("fe-common/silc", server, NULL,
1122                                MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
1123                                client_entry->nickname);
1124           else {
1125             printformat_module("fe-common/silc", server, NULL,
1126                                MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
1127                                client_entry->nickname);
1128             silc_client_file_close(silc_client, conn, ftp->session_id);
1129             silc_dlist_del(server->ftp_sessions, ftp);
1130             if (ftp == server->current_session) {
1131               server->current_session = NULL;
1132               silc_dlist_start(server->ftp_sessions);
1133               server->current_session = silc_dlist_get(server->ftp_sessions);
1134             }
1135             silc_free(ftp->filepath);
1136             silc_free(ftp);
1137           }
1138         }
1139         break;
1140       }
1141     }
1142
1143     if (ftp == SILC_LIST_END) {
1144       printformat_module("fe-common/silc", server, NULL,
1145                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
1146                          client_entry->nickname);
1147       goto out;
1148     }
1149     break;
1150
1151   case 3:
1152     /* Parse the typed nickname. */
1153     if (argc >= 3) {
1154       /* Parse the typed nickname. */
1155       silc_client_nickname_parse(silc_client, conn, argv[2], &nickname);
1156       if (!nickname)
1157         nickname = strdup(argv[2]);
1158
1159       /* Find client entry */
1160       entries = silc_client_get_clients_local(silc_client, conn, argv[2],
1161                                               FALSE);
1162       if (!entries) {
1163         FileGetClients inter = silc_calloc(1, sizeof(*inter));
1164         inter->server = server;
1165         inter->data = strdup(data);
1166         inter->nick = strdup(nickname);
1167         inter->item = item;
1168         silc_client_get_clients(silc_client, conn, nickname, NULL,
1169                                 silc_client_command_file_get_clients, inter);
1170         goto out;
1171       }
1172       silc_dlist_start(entries);
1173       client_entry = silc_dlist_get(entries);
1174       silc_client_list_free(silc_client, server->conn, entries);
1175     } else {
1176       if (!server->current_session) {
1177         printformat_module("fe-common/silc", server, NULL,
1178                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
1179         goto out;
1180       }
1181
1182       silc_client_file_close(silc_client, conn,
1183                              server->current_session->session_id);
1184       printformat_module("fe-common/silc", server, NULL,
1185                          MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
1186                          server->current_session->client_entry->nickname,
1187                          server->current_session->filepath ?
1188                          server->current_session->filepath : "[N/A]");
1189       silc_dlist_del(server->ftp_sessions, server->current_session);
1190       silc_free(server->current_session->filepath);
1191       silc_free(server->current_session);
1192       server->current_session = NULL;
1193
1194       silc_dlist_start(server->ftp_sessions);
1195       server->current_session = silc_dlist_get(server->ftp_sessions);
1196       goto out;
1197     }
1198
1199     silc_dlist_start(server->ftp_sessions);
1200     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
1201       if (ftp->client_entry == client_entry) {
1202         silc_client_file_close(silc_client, conn, ftp->session_id);
1203         printformat_module("fe-common/silc", server, NULL,
1204                            MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
1205                            client_entry->nickname,
1206                            ftp->filepath ? ftp->filepath : "[N/A]");
1207         silc_dlist_del(server->ftp_sessions, ftp);
1208         if (ftp == server->current_session) {
1209           server->current_session = NULL;
1210           silc_dlist_start(server->ftp_sessions);
1211           server->current_session = silc_dlist_get(server->ftp_sessions);
1212         }
1213         silc_free(ftp->filepath);
1214         silc_free(ftp);
1215         break;
1216       }
1217     }
1218
1219     if (ftp == SILC_LIST_END) {
1220       printformat_module("fe-common/silc", server, NULL,
1221                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
1222                          client_entry->nickname);
1223       goto out;
1224     }
1225     break;
1226
1227   case 4:
1228
1229     if (!silc_dlist_count(server->ftp_sessions)) {
1230       printformat_module("fe-common/silc", server, NULL,
1231                          MSGLEVEL_CRAP, SILCTXT_FILE_NA);
1232       goto out;
1233     }
1234
1235     printformat_module("fe-common/silc", server, NULL,
1236                        MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_HEADER);
1237
1238     silc_dlist_start(server->ftp_sessions);
1239     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
1240       printformat_module("fe-common/silc", server, NULL,
1241                          MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_LINE,
1242                          ftp->client_entry->nickname,
1243                          ftp->session_id,
1244                          ftp->send ? "send" : "receive",
1245                          (SilcUInt32)(ftp->offset + 1023) / 1024,
1246                          (SilcUInt32)(ftp->filesize + 1023) / 1024,
1247                          ftp->percent, ftp->kps,
1248                          ftp->filepath ? ftp->filepath : "[N/A]");
1249     }
1250
1251     break;
1252
1253   default:
1254     break;
1255   }
1256
1257  out:
1258   silc_free(nickname);
1259   return;
1260 }
1261
1262 void silc_server_init(void)
1263 {
1264   silc_servers_reconnect_init();
1265
1266   signal_add_first("server connected", (SIGNAL_FUNC) sig_connected);
1267   signal_add("server disconnected", (SIGNAL_FUNC) sig_disconnected);
1268   signal_add("mime-send", (SIGNAL_FUNC)silc_send_mime);
1269   command_bind_silc("whois", MODULE_NAME, (SIGNAL_FUNC) command_self);
1270   command_bind_silc("whowas", MODULE_NAME, (SIGNAL_FUNC) command_self);
1271   command_bind_silc("nick", MODULE_NAME, (SIGNAL_FUNC) command_self);
1272   command_bind_silc("topic", MODULE_NAME, (SIGNAL_FUNC) command_self);
1273   command_bind_silc("cmode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1274   command_bind_silc("cumode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1275   command_bind_silc("users", MODULE_NAME, (SIGNAL_FUNC) command_self);
1276   command_bind_silc("list", MODULE_NAME, (SIGNAL_FUNC) command_self);
1277   command_bind_silc("ban", MODULE_NAME, (SIGNAL_FUNC) command_self);
1278   command_bind_silc("oper", MODULE_NAME, (SIGNAL_FUNC) command_self);
1279   command_bind_silc("silcoper", MODULE_NAME, (SIGNAL_FUNC) command_self);
1280   command_bind_silc("umode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1281   command_bind_silc("invite", MODULE_NAME, (SIGNAL_FUNC) command_self);
1282   command_bind_silc("kill", MODULE_NAME, (SIGNAL_FUNC) command_self);
1283   command_bind_silc("kick", MODULE_NAME, (SIGNAL_FUNC) command_self);
1284   command_bind_silc("info", MODULE_NAME, (SIGNAL_FUNC) command_self);
1285   command_bind_silc("ping", MODULE_NAME, (SIGNAL_FUNC) command_self);
1286   command_bind_silc("motd", MODULE_NAME, (SIGNAL_FUNC) command_self);
1287   command_bind_silc("close", MODULE_NAME, (SIGNAL_FUNC) command_self);
1288   command_bind_silc("getkey", MODULE_NAME, (SIGNAL_FUNC) command_self);
1289   command_bind_silc("file", MODULE_NAME, (SIGNAL_FUNC) command_file);
1290   command_bind_silc("detach", MODULE_NAME, (SIGNAL_FUNC) command_self);
1291   command_bind_silc("watch", MODULE_NAME, (SIGNAL_FUNC) command_self);
1292   command_bind_silc("stats", MODULE_NAME, (SIGNAL_FUNC) command_self);
1293   command_bind_silc("attr", MODULE_NAME, (SIGNAL_FUNC) command_attr);
1294   command_bind_silc("smsg", MODULE_NAME, (SIGNAL_FUNC) command_smsg);
1295
1296   command_set_options("connect", "+silcnet");
1297 }
1298
1299 void silc_server_deinit(void)
1300 {
1301   silc_servers_reconnect_deinit();
1302
1303   signal_remove("server connected", (SIGNAL_FUNC) sig_connected);
1304   signal_remove("server disconnected", (SIGNAL_FUNC) sig_disconnected);
1305   signal_remove("mime-send", (SIGNAL_FUNC)silc_send_mime);
1306   command_unbind("whois", (SIGNAL_FUNC) command_self);
1307   command_unbind("whowas", (SIGNAL_FUNC) command_self);
1308   command_unbind("nick", (SIGNAL_FUNC) command_self);
1309   command_unbind("topic", (SIGNAL_FUNC) command_self);
1310   command_unbind("cmode", (SIGNAL_FUNC) command_self);
1311   command_unbind("cumode", (SIGNAL_FUNC) command_self);
1312   command_unbind("users", (SIGNAL_FUNC) command_self);
1313   command_unbind("list", (SIGNAL_FUNC) command_self);
1314   command_unbind("oper", (SIGNAL_FUNC) command_self);
1315   command_unbind("silcoper", (SIGNAL_FUNC) command_self);
1316   command_unbind("umode", (SIGNAL_FUNC) command_self);
1317   command_unbind("invite", (SIGNAL_FUNC) command_self);
1318   command_unbind("kill", (SIGNAL_FUNC) command_self);
1319   command_unbind("kick", (SIGNAL_FUNC) command_self);
1320   command_unbind("info", (SIGNAL_FUNC) command_self);
1321   command_unbind("ping", (SIGNAL_FUNC) command_self);
1322   command_unbind("motd", (SIGNAL_FUNC) command_self);
1323   command_unbind("ban", (SIGNAL_FUNC) command_self);
1324   command_unbind("close", (SIGNAL_FUNC) command_self);
1325   command_unbind("getkey", (SIGNAL_FUNC) command_self);
1326   command_unbind("file", (SIGNAL_FUNC) command_file);
1327   command_unbind("detach", (SIGNAL_FUNC) command_self);
1328   command_unbind("watch", (SIGNAL_FUNC) command_self);
1329   command_unbind("stats", (SIGNAL_FUNC) command_self);
1330   command_unbind("attr", (SIGNAL_FUNC) command_attr);
1331   command_unbind("smsg", (SIGNAL_FUNC) command_smsg);
1332 }
1333
1334 void silc_server_free_ftp(SILC_SERVER_REC *server,
1335                           SilcClientEntry client_entry)
1336 {
1337   FtpSession ftp;
1338
1339   silc_dlist_start(server->ftp_sessions);
1340   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
1341     if (ftp->client_entry == client_entry) {
1342       silc_dlist_del(server->ftp_sessions, ftp);
1343       silc_free(ftp->filepath);
1344       silc_free(ftp);
1345     }
1346   }
1347 }
1348
1349 bool silc_term_utf8(void)
1350 {
1351   const char *str;
1352   str = settings_get_str("term_charset");
1353   if (str)
1354     if (g_strcasecmp(str, "utf-8") == 0)
1355       return TRUE;
1356   return FALSE;
1357 }