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/silc/module-formats.h"
  45
  46 void silc_servers_reconnect_init(void);
  47 void silc_servers_reconnect_deinit(void);
  48
  49 static void silc_send_channel(SILC_SERVER_REC *server,
  50                               char *channel, char *msg)
  51 {
  52   SILC_CHANNEL_REC *rec;
  53
  54   rec = silc_channel_find(server, channel);
  55   if (rec == NULL || rec->entry == NULL)
  56     return;
  57
  58   silc_client_send_channel_message(silc_client, server->conn, rec->entry,
  59                                    NULL, 0, msg, strlen(msg), TRUE);
  60 }
  61
  62 typedef struct {
  63   char *nick;
  64   char *msg;
  65   SILC_SERVER_REC *server;
  66 } PRIVMSG_REC;
  67
  68 /* Callback function that sends the private message if the client was
  69    resolved from the server. */
  70
  71 static void silc_send_msg_clients(SilcClient client,
  72                                   SilcClientConnection conn,
  73                                   SilcClientEntry *clients,
  74                                   uint32 clients_count,
  75                                   void *context)
  76 {
  77   PRIVMSG_REC *rec = context;
  78   SILC_SERVER_REC *server = rec->server;
  79   SilcClientEntry target;
  80   char *nickname = NULL;
  81
  82   if (!clients_count) {
  83     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Unknown nick: %s", rec->nick);
  84   } else {
  85     if (clients_count > 1) {
  86       silc_parse_userfqdn(rec->nick, &nickname, NULL);
  87
  88       /* Find the correct one. The rec->nick might be a formatted nick
  89          so this will find the correct one. */
  90       clients = silc_client_get_clients_local(silc_client, server->conn,
  91                                               nickname, rec->nick,
  92                                               &clients_count);
  93       if (!clients) {
  94         printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Unknown nick: %s",
  95                   rec->nick);
  96         silc_free(nickname);
  97         goto out;
  98       }
  99       silc_free(nickname);
 100     }
 101
 102     target = clients[0];
 103
 104     /* Send the private message */
 105     silc_client_send_private_message(client, conn, target, 0,
 106                                      rec->msg, strlen(rec->msg),
 107                                      TRUE);
 108   }
 109
 110  out:
 111   g_free(rec->nick);
 112   g_free(rec->msg);
 113   g_free(rec);
 114 }
 115
 116 static void silc_send_msg(SILC_SERVER_REC *server, char *nick, char *msg)
 117 {
 118   PRIVMSG_REC *rec;
 119   SilcClientEntry *clients;
 120   uint32 clients_count;
 121   char *nickname = NULL;
 122
 123   if (!silc_parse_userfqdn(nick, &nickname, NULL)) {
 124     printformat_module("fe-common/silc", server, NULL,
 125                        MSGLEVEL_CRAP, SILCTXT_BAD_NICK, nick);
 126     return;
 127   }
 128
 129   /* Find client entry */
 130   clients = silc_client_get_clients_local(silc_client, server->conn,
 131                                           nickname, nick, &clients_count);
 132   silc_free(nickname);
 133
 134   if (!clients) {
 135     rec = g_new0(PRIVMSG_REC, 1);
 136     rec->nick = g_strdup(nick);
 137     rec->msg = g_strdup(msg);
 138     rec->server = server;
 139
 140     /* Could not find client with that nick, resolve it from server. */
 141     silc_client_get_clients(silc_client, server->conn,
 142                             nickname, NULL, silc_send_msg_clients, rec);
 143     return;
 144   }
 145
 146   /* Send the private message directly */
 147   silc_client_send_private_message(silc_client, server->conn,
 148                                    clients[0], 0, msg, strlen(msg), TRUE);
 149 }
 150
 151 static int isnickflag_func(char flag)
 152 {
 153   return flag == '@' || flag == '+';
 154 }
 155
 156 static int ischannel_func(const char *data)
 157 {
 158   return *data == '#';
 159 }
 160
 161 const char *get_nick_flags(void)
 162 {
 163   return "@\0\0";
 164 }
 165
 166 static void send_message(SILC_SERVER_REC *server, char *target, char *msg)
 167 {
 168   g_return_if_fail(server != NULL);
 169   g_return_if_fail(target != NULL);
 170   g_return_if_fail(msg != NULL);
 171
 172   if (*target == '#')
 173     silc_send_channel(server, target, msg);
 174   else
 175     silc_send_msg(server, target, msg);
 176 }
 177
 178 static void sig_connected(SILC_SERVER_REC *server)
 179 {
 180   SilcClientConnection conn;
 181   int fd;
 182
 183   if (!IS_SILC_SERVER(server))
 184     return;
 185
 186   conn = silc_client_add_connection(silc_client,
 187                                     server->connrec->address,
 188                                     server->connrec->port,
 189                                     server);
 190   server->conn = conn;
 191
 192   fd = g_io_channel_unix_get_fd(net_sendbuffer_handle(server->handle));
 193   if (!silc_client_start_key_exchange(silc_client, conn, fd)) {
 194     /* some internal error occured */
 195     server_disconnect(SERVER(server));
 196     signal_stop();
 197     return;
 198   }
 199
 200   server->isnickflag = isnickflag_func;
 201   server->ischannel = ischannel_func;
 202   server->get_nick_flags = get_nick_flags;
 203   server->send_message = (void *) send_message;
 204 }
 205
 206 static void sig_disconnected(SILC_SERVER_REC *server)
 207 {
 208   if (!IS_SILC_SERVER(server))
 209     return;
 210
 211   if (server->conn && server->conn->sock != NULL) {
 212     silc_client_close_connection(silc_client, NULL, server->conn);
 213
 214     /* SILC closes the handle */
 215     g_io_channel_unref(net_sendbuffer_handle(server->handle));
 216     net_sendbuffer_destroy(server->handle, FALSE);
 217     server->handle = NULL;
 218   }
 219 }
 220
 221 SILC_SERVER_REC *silc_server_connect(SILC_SERVER_CONNECT_REC *conn)
 222 {
 223   SILC_SERVER_REC *server;
 224
 225   g_return_val_if_fail(IS_SILC_SERVER_CONNECT(conn), NULL);
 226   if (conn->address == NULL || *conn->address == '\0')
 227     return NULL;
 228   if (conn->nick == NULL || *conn->nick == '\0') {
 229     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR,
 230               "Cannot connect: nickname is not set");
 231     return NULL;
 232   }
 233
 234   server = g_new0(SILC_SERVER_REC, 1);
 235   server->chat_type = SILC_PROTOCOL;
 236   server->connrec = conn;
 237   if (server->connrec->port <= 0)
 238     server->connrec->port = 706;
 239
 240   if (!server_start_connect((SERVER_REC *) server)) {
 241     server_connect_free(SERVER_CONNECT(conn));
 242     g_free(server);
 243     return NULL;
 244   }
 245
 246   server->ftp_sessions = silc_dlist_init();
 247
 248   return server;
 249 }
 250
 251 /* Return a string of all channels in server in server->channels_join()
 252    format */
 253
 254 char *silc_server_get_channels(SILC_SERVER_REC *server)
 255 {
 256   GSList *tmp;
 257   GString *chans;
 258   char *ret;
 259
 260   g_return_val_if_fail(server != NULL, FALSE);
 261
 262   chans = g_string_new(NULL);
 263   for (tmp = server->channels; tmp != NULL; tmp = tmp->next) {
 264     CHANNEL_REC *channel = tmp->data;
 265
 266     g_string_sprintfa(chans, "%s,", channel->name);
 267   }
 268
 269   if (chans->len > 0)
 270     g_string_truncate(chans, chans->len-1);
 271
 272   ret = chans->str;
 273   g_string_free(chans, FALSE);
 274
 275   return ret;
 276 }
 277
 278 /* Syntaxes of all SILC commands for HELP files (the help file generation
 279    will snoop these from here). */
 280
 281 /* SYNTAX: BAN <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 282 /* SYNTAX: CMODE <channel> +|-<modes> [{ <arguments>}] */
 283 /* SYNTAX: CUMODE <channel> +|-<modes> <nickname>[@<hostname>] [-pubkey|<passwd>] */
 284 /* SYNTAX: GETKEY <nickname or server name> */
 285 /* SYNTAX: INVITE <channel> [<nickname>[@hostname>] */
 286 /* SYNTAX: INVITE <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 287 /* SYNTAX: KEY MSG <nickname> set|unset|list|agreement|negotiate [<arguments>] */
 288 /* SYNTAX: KEY CHANNEL <channel> set|unset|list|agreement|negotiate [<arguments>] */
 289 /* SYNTAX: KICK <channel> <nickname>[@<hostname>] [<comment>] */
 290 /* SYNTAX: KILL <nickname>[@<hostname>] [<comment>] */
 291 /* SYNTAX: OPER <username> [-pubkey] */
 292 /* SYNTAX: SILCOPER <username> [-pubkey] */
 293 /* SYNTAX: TOPIC <channel> [<topic>] */
 294 /* SYNTAX: UMODE +|-<modes> */
 295 /* SYNTAX: WHOIS <nickname>[@<hostname>] [<count>] */
 296 /* SYNTAX: WHOWAS <nickname>[@<hostname>] [<count>] */
 297 /* SYNTAX: CLOSE <server> [<port>] */
 298 /* SYNTAX: SHUTDOWN */
 299 /* SYNTAX: MOTD [<server>] */
 300 /* SYNTAX: LIST [<channel>] */
 301 /* SYNTAX: ME <message> */
 302 /* SYNTAX: ACTION <channel> <message> */
 303 /* SYNTAX: AWAY [<message>] */
 304 /* SYNTAX: INFO [<server>] */
 305 /* SYNTAX: NICK <nickname> */
 306 /* SYNTAX: NOTICE <message> */
 307 /* SYNTAX: PART [<channel>] */
 308 /* SYNTAX: PING */
 309 /* SYNTAX: SCONNECT <server> [<port>] */
 310 /* SYNTAX: USERS <channel> */
 311 /* SYNTAX: FILE SEND <filename> <nickname> */
 312 /* SYNTAX: FILE RECEIVE [<nickname>] */
 313 /* SYNTAX: FILE CLOSE [<nickname>] */
 314 /* SYNTAX: FILE SHOW */
 315
 316 void silc_command_exec(SILC_SERVER_REC *server,
 317                        const char *command, const char *args)
 318 {
 319   uint32 argc = 0;
 320   unsigned char **argv;
 321   uint32 *argv_lens, *argv_types;
 322   char *data, *tmpcmd;
 323   SilcClientCommand *cmd;
 324   SilcClientCommandContext ctx;
 325
 326   g_return_if_fail(server != NULL);
 327
 328   tmpcmd = g_strdup(command);
 329   g_strup(tmpcmd);
 330   cmd = silc_client_command_find(tmpcmd);
 331   g_free(tmpcmd);
 332   if (cmd == NULL)
 333     return;
 334
 335   /* Now parse all arguments */
 336   data = g_strconcat(command, " ", args, NULL);
 337   silc_parse_command_line(data, &argv, &argv_lens,
 338                           &argv_types, &argc, cmd->max_args);
 339   g_free(data);
 340
 341   /* Allocate command context. This and its internals must be free'd
 342      by the command routine receiving it. */
 343   ctx = silc_client_command_alloc();
 344   ctx->client = silc_client;
 345   ctx->conn = server->conn;
 346   ctx->command = cmd;
 347   ctx->argc = argc;
 348   ctx->argv = argv;
 349   ctx->argv_lens = argv_lens;
 350   ctx->argv_types = argv_types;
 351
 352   /* Execute command */
 353   (*cmd->cb)(ctx, NULL);
 354 }
 355
 356 /* Generic command function to call any SILC command directly. */
 357
 358 static void command_self(const char *data, SILC_SERVER_REC *server,
 359                          WI_ITEM_REC *item)
 360 {
 361   if (!IS_SILC_SERVER(server) || !server->connected) {
 362     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 363     return;
 364   }
 365
 366   if (IS_SILC_CHANNEL(item)) {
 367     SILC_CHANNEL_REC *chanrec;
 368     chanrec = silc_channel_find(server, item->name);
 369     if (chanrec)
 370       server->conn->current_channel = chanrec->entry;
 371   }
 372
 373   silc_command_exec(server, current_command, data);
 374   signal_stop();
 375 }
 376
 377 /* SCONNECT command.  Calls actually SILC's CONNECT command since Irssi
 378    has CONNECT command for other purposes. */
 379
 380 static void command_sconnect(const char *data, SILC_SERVER_REC *server)
 381 {
 382   if (!IS_SILC_SERVER(server) || !server->connected) {
 383     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 384     return;
 385   }
 386
 387   silc_command_exec(server, "CONNECT", data);
 388   signal_stop();
 389 }
 390
 391 static void event_text(const char *line, SILC_SERVER_REC *server,
 392                        WI_ITEM_REC *item)
 393 {
 394   char *str;
 395
 396   g_return_if_fail(line != NULL);
 397
 398   if (!IS_SILC_ITEM(item))
 399     return;
 400
 401   str = g_strdup_printf("%s %s", item->name, line);
 402   signal_emit("command msg", 3, str, server, item);
 403   g_free(str);
 404
 405  signal_stop();
 406 }
 407
 408 /* FILE command */
 409
 410 SILC_TASK_CALLBACK(silc_client_file_close_later)
 411 {
 412   FtpSession ftp = (FtpSession)context;
 413
 414   SILC_LOG_DEBUG(("Start"));
 415
 416   silc_client_file_close(silc_client, ftp->conn, ftp->session_id);
 417   silc_free(ftp->filepath);
 418   silc_free(ftp);
 419 }
 420
 421 static void silc_client_file_monitor(SilcClient client,
 422                                      SilcClientConnection conn,
 423                                      SilcClientMonitorStatus status,
 424                                      uint64 offset,
 425                                      uint64 filesize,
 426                                      SilcClientEntry client_entry,
 427                                      uint32 session_id,
 428                                      const char *filepath,
 429                                      void *context)
 430 {
 431   SILC_SERVER_REC *server = (SILC_SERVER_REC *)context;
 432   FtpSession ftp;
 433   char fsize[32];
 434
 435   snprintf(fsize, sizeof(fsize) - 1, "%llu", (filesize / 1024));
 436
 437   silc_dlist_start(server->ftp_sessions);
 438   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 439     if (ftp->client_entry == client_entry) {
 440       ftp->session_id = session_id;
 441
 442       if (!ftp->filepath)
 443         ftp->filepath = strdup(filepath);
 444       break;
 445     }
 446   }
 447
 448   if (status == SILC_CLIENT_FILE_MONITOR_SEND) {
 449     if (offset == 0)
 450       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 451                          SILCTXT_FILE_TRANSMIT, filepath, fsize,
 452                          client_entry->nickname);
 453     if (offset == filesize) {
 454       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 455                          SILCTXT_FILE_TRANSMITTED, filepath, fsize,
 456                          client_entry->nickname, "1024");
 457       if (ftp != SILC_LIST_END) {
 458         silc_schedule_task_add(silc_client->schedule, 0,
 459                                silc_client_file_close_later, ftp,
 460                                1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 461         silc_dlist_del(server->ftp_sessions, ftp);
 462       }
 463     }
 464   }
 465
 466   if (status == SILC_CLIENT_FILE_MONITOR_RECEIVE) {
 467     if (offset == 0)
 468       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 469                          SILCTXT_FILE_RECEIVE, filepath, fsize,
 470                          client_entry->nickname);
 471     if (offset == filesize) {
 472       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 473                          SILCTXT_FILE_RECEIVED, filepath, fsize,
 474                          client_entry->nickname, "1024");
 475       if (ftp != SILC_LIST_END) {
 476         silc_schedule_task_add(silc_client->schedule, 0,
 477                                silc_client_file_close_later, ftp,
 478                                1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 479         silc_dlist_del(server->ftp_sessions, ftp);
 480       }
 481     }
 482   }
 483 }
 484
 485 typedef struct {
 486   SILC_SERVER_REC *server;
 487   char *data;
 488   WI_ITEM_REC *item;
 489 } *FileGetClients;
 490
 491 SILC_CLIENT_CMD_FUNC(file_get_clients)
 492 {
 493   FileGetClients internal = (FileGetClients)context;
 494   signal_emit("command file", 3, internal->data, internal->server,
 495               internal->item);
 496   silc_free(internal->data);
 497   silc_free(internal);
 498 }
 499
 500 static void command_file(const char *data, SILC_SERVER_REC *server,
 501                          WI_ITEM_REC *item)
 502 {
 503   SilcClientConnection conn;
 504   SilcClientEntry client_entry;
 505   char *nickname = NULL, *tmp;
 506   unsigned char **argv;
 507   uint32 argc;
 508   uint32 *argv_lens, *argv_types;
 509   int type;
 510   FtpSession ftp;
 511
 512   if (!server || !IS_SILC_SERVER(server) || !server->connected)
 513     cmd_return_error(CMDERR_NOT_CONNECTED);
 514
 515   conn = server->conn;
 516
 517   /* Now parse all arguments */
 518   tmp = g_strconcat("KEY", " ", data, NULL);
 519   silc_parse_command_line(tmp, &argv, &argv_lens, &argv_types, &argc, 4);
 520   g_free(tmp);
 521
 522   if (argc < 2)
 523     cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 524
 525   type = 0;
 526   if (!strcasecmp(argv[1], "send"))
 527     type = 1;
 528   if (!strcasecmp(argv[1], "receive"))
 529     type = 2;
 530   if (!strcasecmp(argv[1], "close"))
 531     type = 3;
 532   if (!strcasecmp(argv[1], "show"))
 533     type = 4;
 534
 535   if (type == 0)
 536     cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 537
 538   switch (type) {
 539   case 1:
 540     if (argc < 4)
 541       cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 542
 543     /* Parse the typed nickname. */
 544     if (!silc_parse_userfqdn(argv[3], &nickname, NULL)) {
 545       printformat_module("fe-common/silc", server, NULL,
 546                          MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[3]);
 547       goto out;
 548     }
 549
 550     /* Find client entry */
 551     client_entry = silc_idlist_get_client(silc_client, conn, nickname,
 552                                           argv[3], TRUE);
 553     if (!client_entry) {
 554       FileGetClients inter = silc_calloc(1, sizeof(*inter));
 555       inter->server = server;
 556       inter->data = strdup(data);
 557       inter->item = item;
 558
 559       /* Client entry not found, it was requested thus mark this to be
 560          pending command. */
 561       silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY,
 562                                   conn->cmd_ident,
 563                                   NULL, silc_client_command_file_get_clients,
 564                                   inter);
 565       goto out;
 566     }
 567
 568     silc_client_file_send(silc_client, conn, silc_client_file_monitor,
 569                           server, client_entry, argv[2]);
 570     printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 571                        SILCTXT_FILE_SEND, client_entry->nickname,
 572                        argv[2]);
 573
 574     ftp = silc_calloc(1, sizeof(*ftp));
 575     ftp->client_entry = client_entry;
 576     ftp->filepath = strdup(argv[2]);
 577     ftp->conn = conn;
 578     ftp->send = TRUE;
 579     silc_dlist_add(server->ftp_sessions, ftp);
 580     server->current_session = ftp;
 581
 582     break;
 583
 584   case 2:
 585     /* Parse the typed nickname. */
 586     if (argc >= 3) {
 587       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
 588         printformat_module("fe-common/silc", server, NULL,
 589                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
 590         goto out;
 591       }
 592
 593       /* Find client entry */
 594       client_entry = silc_idlist_get_client(silc_client, conn, nickname,
 595                                             argv[2], TRUE);
 596       if (!client_entry) {
 597         FileGetClients inter = silc_calloc(1, sizeof(*inter));
 598         inter->server = server;
 599         inter->data = strdup(data);
 600         inter->item = item;
 601
 602         /* Client entry not found, it was requested thus mark this to be
 603            pending command. */
 604         silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY,
 605                                     conn->cmd_ident,
 606                                     NULL,
 607                                     silc_client_command_file_get_clients,
 608                                     inter);
 609         goto out;
 610       }
 611     } else {
 612       if (!server->current_session) {
 613         printformat_module("fe-common/silc", server, NULL,
 614                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 615         goto out;
 616       }
 617
 618       if (!silc_client_file_receive(silc_client, conn,
 619                                     silc_client_file_monitor, server,
 620                                     server->current_session->client_entry,
 621                                     server->current_session->session_id))
 622         printformat_module("fe-common/silc", server, NULL,
 623                            MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 624                            server->current_session->client_entry->nickname);
 625
 626       goto out;
 627     }
 628
 629     silc_dlist_start(server->ftp_sessions);
 630     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 631       if (ftp->client_entry == client_entry) {
 632         if (!silc_client_file_receive(silc_client, conn,
 633                                       silc_client_file_monitor, server,
 634                                       ftp->client_entry,
 635                                       ftp->session_id))
 636           printformat_module("fe-common/silc", server, NULL,
 637                              MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 638                              server->current_session->client_entry->nickname);
 639         break;
 640       }
 641     }
 642
 643     if (ftp == SILC_LIST_END) {
 644       printformat_module("fe-common/silc", server, NULL,
 645                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 646                          client_entry->nickname);
 647       goto out;
 648     }
 649     break;
 650
 651   case 3:
 652     /* Parse the typed nickname. */
 653     if (argc >= 3) {
 654       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
 655         printformat_module("fe-common/silc", server, NULL,
 656                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
 657         goto out;
 658       }
 659
 660       /* Find client entry */
 661       client_entry = silc_idlist_get_client(silc_client, conn, nickname,
 662                                             argv[2], TRUE);
 663       if (!client_entry) {
 664         FileGetClients inter = silc_calloc(1, sizeof(*inter));
 665         inter->server = server;
 666         inter->data = strdup(data);
 667         inter->item = item;
 668
 669         /* Client entry not found, it was requested thus mark this to be
 670            pending command. */
 671         silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY,
 672                                     conn->cmd_ident,
 673                                     NULL,
 674                                     silc_client_command_file_get_clients,
 675                                     inter);
 676         goto out;
 677       }
 678     } else {
 679       if (!server->current_session) {
 680         printformat_module("fe-common/silc", server, NULL,
 681                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 682         goto out;
 683       }
 684
 685       if (!silc_client_file_close(silc_client, conn,
 686                                   server->current_session->session_id))
 687         printformat_module("fe-common/silc", server, NULL,
 688                            MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 689                            server->current_session->client_entry->nickname);
 690
 691       goto out;
 692     }
 693
 694     silc_dlist_start(server->ftp_sessions);
 695     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 696       if (ftp->client_entry == client_entry) {
 697         if (!silc_client_file_close(silc_client, conn, ftp->session_id))
 698           printformat_module("fe-common/silc", server, NULL,
 699                              MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 700                              server->current_session->client_entry->nickname);
 701         silc_dlist_del(server->ftp_sessions, ftp);
 702         silc_free(ftp->filepath);
 703         silc_free(ftp);
 704         break;
 705       }
 706     }
 707
 708     if (ftp == SILC_LIST_END) {
 709       printformat_module("fe-common/silc", server, NULL,
 710                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 711                          client_entry->nickname);
 712       goto out;
 713     }
 714     break;
 715
 716   case 4:
 717
 718     if (!silc_dlist_count(server->ftp_sessions)) {
 719       printformat_module("fe-common/silc", server, NULL,
 720                          MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 721       goto out;
 722     }
 723
 724     printformat_module("fe-common/silc", server, NULL,
 725                        MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_HEADER);
 726
 727     silc_dlist_start(server->ftp_sessions);
 728     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 729       printformat_module("fe-common/silc", server, NULL,
 730                          MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_LINE,
 731                          ftp->client_entry->nickname,
 732                          ftp->filepath ? ftp->filepath : "[unknown]",
 733                          ftp->send ? "send" : "receive");
 734     }
 735
 736     break;
 737
 738   default:
 739     break;
 740   }
 741
 742  out:
 743   silc_free(nickname);
 744 }
 745
 746 void silc_server_init(void)
 747 {
 748   silc_servers_reconnect_init();
 749
 750   signal_add_first("server connected", (SIGNAL_FUNC) sig_connected);
 751   signal_add("server disconnected", (SIGNAL_FUNC) sig_disconnected);
 752   signal_add("send text", (SIGNAL_FUNC) event_text);
 753   command_bind("whois", MODULE_NAME, (SIGNAL_FUNC) command_self);
 754   command_bind("whowas", MODULE_NAME, (SIGNAL_FUNC) command_self);
 755   command_bind("nick", MODULE_NAME, (SIGNAL_FUNC) command_self);
 756   command_bind("topic", MODULE_NAME, (SIGNAL_FUNC) command_self);
 757   command_bind("cmode", MODULE_NAME, (SIGNAL_FUNC) command_self);
 758   command_bind("cumode", MODULE_NAME, (SIGNAL_FUNC) command_self);
 759   command_bind("users", MODULE_NAME, (SIGNAL_FUNC) command_self);
 760   command_bind("list", MODULE_NAME, (SIGNAL_FUNC) command_self);
 761   command_bind("ban", MODULE_NAME, (SIGNAL_FUNC) command_self);
 762   command_bind("oper", MODULE_NAME, (SIGNAL_FUNC) command_self);
 763   command_bind("silcoper", MODULE_NAME, (SIGNAL_FUNC) command_self);
 764   command_bind("umode", MODULE_NAME, (SIGNAL_FUNC) command_self);
 765   command_bind("invite", MODULE_NAME, (SIGNAL_FUNC) command_self);
 766   command_bind("kill", MODULE_NAME, (SIGNAL_FUNC) command_self);
 767   command_bind("kick", MODULE_NAME, (SIGNAL_FUNC) command_self);
 768   command_bind("info", MODULE_NAME, (SIGNAL_FUNC) command_self);
 769   command_bind("ping", MODULE_NAME, (SIGNAL_FUNC) command_self);
 770   command_bind("motd", MODULE_NAME, (SIGNAL_FUNC) command_self);
 771   command_bind("close", MODULE_NAME, (SIGNAL_FUNC) command_self);
 772   command_bind("shutdown", MODULE_NAME, (SIGNAL_FUNC) command_self);
 773   command_bind("getkey", MODULE_NAME, (SIGNAL_FUNC) command_self);
 774   command_bind("sconnect", MODULE_NAME, (SIGNAL_FUNC) command_sconnect);
 775   command_bind("file", MODULE_NAME, (SIGNAL_FUNC) command_file);
 776
 777   command_set_options("connect", "+silcnet");
 778 }
 779
 780 void silc_server_deinit(void)
 781 {
 782   silc_servers_reconnect_deinit();
 783
 784   signal_remove("server connected", (SIGNAL_FUNC) sig_connected);
 785   signal_remove("server disconnected", (SIGNAL_FUNC) sig_disconnected);
 786   signal_remove("send text", (SIGNAL_FUNC) event_text);
 787   command_unbind("whois", (SIGNAL_FUNC) command_self);
 788   command_unbind("whowas", (SIGNAL_FUNC) command_self);
 789   command_unbind("nick", (SIGNAL_FUNC) command_self);
 790   command_unbind("topic", (SIGNAL_FUNC) command_self);
 791   command_unbind("cmode", (SIGNAL_FUNC) command_self);
 792   command_unbind("cumode", (SIGNAL_FUNC) command_self);
 793   command_unbind("users", (SIGNAL_FUNC) command_self);
 794   command_unbind("list", (SIGNAL_FUNC) command_self);
 795   command_unbind("oper", (SIGNAL_FUNC) command_self);
 796   command_unbind("silcoper", (SIGNAL_FUNC) command_self);
 797   command_unbind("umode", (SIGNAL_FUNC) command_self);
 798   command_unbind("invite", (SIGNAL_FUNC) command_self);
 799   command_unbind("kill", (SIGNAL_FUNC) command_self);
 800   command_unbind("kick", (SIGNAL_FUNC) command_self);
 801   command_unbind("info", (SIGNAL_FUNC) command_self);
 802   command_unbind("ping", (SIGNAL_FUNC) command_self);
 803   command_unbind("motd", (SIGNAL_FUNC) command_self);
 804   command_unbind("ban", (SIGNAL_FUNC) command_self);
 805   command_unbind("close", (SIGNAL_FUNC) command_self);
 806   command_unbind("shutdown", (SIGNAL_FUNC) command_self);
 807   command_unbind("getkey", (SIGNAL_FUNC) command_self);
 808   command_unbind("sconnect", (SIGNAL_FUNC) command_sconnect);
 809   command_unbind("file", (SIGNAL_FUNC) command_file);
 810 }
 811
 812 void silc_server_free_ftp(SILC_SERVER_REC *server,
 813                           SilcClientEntry client_entry)
 814 {
 815   FtpSession ftp;
 816
 817   silc_dlist_start(server->ftp_sessions);
 818   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 819     if (ftp->client_entry == client_entry) {
 820       silc_dlist_del(server->ftp_sessions, ftp);
 821       silc_free(ftp->filepath);
 822       silc_free(ftp);
 823       break;
 824     }
 825   }
 826 }