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 void silc_send_channel(SILC_SERVER_REC *server,
  54                               char *channel, char *msg)
  55 {
  56   SILC_CHANNEL_REC *rec;
  57
  58   rec = silc_channel_find(server, channel);
  59   if (rec == NULL || rec->entry == NULL) {
  60     cmd_return_error(CMDERR_NOT_JOINED);
  61     return;
  62   }
  63
  64   silc_client_send_channel_message(silc_client, server->conn, rec->entry,
  65                                    NULL, SILC_MESSAGE_FLAG_UTF8,
  66                                    msg, strlen(msg), 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 void 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;
 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;
 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 }
 175
 176 void silc_send_mime(SILC_SERVER_REC *server, WI_ITEM_REC *to,
 177                     const char *data, int data_len,
 178                     const char *enc, const char *type)
 179 {
 180   SILC_CHANNEL_REC *channel;
 181   QUERY_REC *query;
 182   char *mime_data;
 183   int mime_data_len;
 184
 185   if (!(IS_SILC_SERVER(server)) || (data == NULL) || (to == NULL) ||
 186       (enc == NULL) || (type == NULL))
 187     return;
 188
 189 #define SILC_MIME_HEADER "MIME-Version: 1.0\r\nContent-Type: %s\r\nContent-Transfer-Encoding: %s\r\n\r\n"
 190
 191   mime_data_len = data_len + strlen(SILC_MIME_HEADER) - 4
 192     + strlen(enc) + strlen(type);
 193   if (mime_data_len >= SILC_PACKET_MAX_LEN)
 194     return;
 195
 196   /* we risk to large packets here... */
 197   mime_data = silc_calloc(mime_data_len, sizeof(*mime_data));
 198   snprintf(mime_data, mime_data_len, SILC_MIME_HEADER, type, enc);
 199   memmove(mime_data + strlen(SILC_MIME_HEADER) - 4 + strlen(enc) + strlen(type),
 200           data, data_len);
 201
 202 #undef SILC_MIME_HEADER
 203
 204   if (IS_SILC_CHANNEL(to)) {
 205     channel = SILC_CHANNEL(to);
 206     silc_client_send_channel_message(silc_client, server->conn, channel->entry,
 207                                      NULL, SILC_MESSAGE_FLAG_DATA,
 208                                      mime_data, mime_data_len, TRUE);
 209   } else if (IS_SILC_QUERY(to)) {
 210     query = SILC_QUERY(to);
 211     silc_send_msg(server, query->name, mime_data, mime_data_len,
 212                   SILC_MESSAGE_FLAG_DATA);
 213
 214   }
 215
 216   silc_free(mime_data);
 217 }
 218
 219 static int isnickflag_func(char flag)
 220 {
 221   return flag == '@' || flag == '+';
 222 }
 223
 224 static int ischannel_func(SERVER_REC *server, const char *data)
 225 {
 226   return FALSE;
 227 }
 228
 229 const char *get_nick_flags(void)
 230 {
 231   return "@\0\0";
 232 }
 233
 234 static void send_message(SILC_SERVER_REC *server, char *target,
 235                          char *msg, int target_type)
 236 {
 237   char *message = NULL;
 238   int len;
 239
 240   g_return_if_fail(server != NULL);
 241   g_return_if_fail(target != NULL);
 242   g_return_if_fail(msg != NULL);
 243
 244   if (!silc_term_utf8()) {
 245     len = silc_utf8_encoded_len(msg, strlen(msg), SILC_STRING_LANGUAGE);
 246     message = silc_calloc(len + 1, sizeof(*message));
 247     g_return_if_fail(message != NULL);
 248     silc_utf8_encode(msg, strlen(msg), SILC_STRING_LANGUAGE, message, len);
 249   }
 250
 251   if (target_type == SEND_TARGET_CHANNEL)
 252     silc_send_channel(server, target, message ? message : msg);
 253   else
 254     silc_send_msg(server, target, message ? message : msg,
 255                   message ? strlen(message) : strlen(msg),
 256                   SILC_MESSAGE_FLAG_UTF8);
 257
 258   silc_free(message);
 259 }
 260
 261 void silc_send_heartbeat(SilcSocketConnection sock,
 262                          void *hb_context)
 263 {
 264   SILC_SERVER_REC *server = SILC_SERVER(hb_context);
 265
 266   if (server == NULL)
 267     return;
 268
 269   silc_client_packet_send(silc_client, sock, SILC_PACKET_HEARTBEAT,
 270                           NULL, 0, NULL, NULL, NULL, 0, FALSE);
 271 }
 272
 273 static void sig_connected(SILC_SERVER_REC *server)
 274 {
 275   SilcClientConnection conn;
 276   SilcClientConnectionParams params;
 277   char file[256];
 278   int fd;
 279
 280   if (!IS_SILC_SERVER(server))
 281     return;
 282
 283   /* Try to read detached session data and use it if found. */
 284   memset(&params, 0, sizeof(params));
 285   memset(file, 0, sizeof(file));
 286   snprintf(file, sizeof(file) - 1, "%s/session", get_irssi_dir());
 287   params.detach_data = silc_file_readfile(file, &params.detach_data_len);
 288   if (params.detach_data)
 289     params.detach_data[params.detach_data_len] = 0;
 290
 291   /* Add connection to the client library */
 292   conn = silc_client_add_connection(silc_client, &params,
 293                                     server->connrec->address,
 294                                     server->connrec->port,
 295                                     server);
 296   server->conn = conn;
 297
 298   if (params.detach_data)
 299     keyboard_entry_redirect(NULL,
 300                             "-- Resuming old session, may take a while ...",
 301                             ENTRY_REDIRECT_FLAG_HIDDEN, server);
 302
 303   silc_free(params.detach_data);
 304   unlink(file);
 305
 306   fd = g_io_channel_unix_get_fd(net_sendbuffer_handle(server->handle));
 307
 308   /* Start key exchange with the server */
 309   silc_client_start_key_exchange(silc_client, conn, fd);
 310
 311   /* Put default attributes */
 312   silc_query_attributes_default(silc_client, conn);
 313
 314   /* initialize heartbeat sending */
 315   if (settings_get_int("heartbeat") > 0)
 316     silc_socket_set_heartbeat(conn->sock, settings_get_int("heartbeat"),
 317                                 (void *)server,
 318                                 (SilcSocketConnectionHBCb)silc_send_heartbeat,
 319                                 silc_client->schedule);
 320
 321   server->ftp_sessions = silc_dlist_init();
 322   server->isnickflag = isnickflag_func;
 323   server->ischannel = ischannel_func;
 324   server->get_nick_flags = get_nick_flags;
 325   server->send_message = (void *) send_message;
 326 }
 327
 328 static void sig_disconnected(SILC_SERVER_REC *server)
 329 {
 330   if (!IS_SILC_SERVER(server))
 331     return;
 332
 333   silc_dlist_uninit(server->ftp_sessions);
 334
 335   if (server->conn && server->conn->sock != NULL) {
 336     silc_client_close_connection(silc_client, server->conn);
 337
 338     /* SILC closes the handle */
 339     g_io_channel_unref(net_sendbuffer_handle(server->handle));
 340     net_sendbuffer_destroy(server->handle, FALSE);
 341     server->handle = NULL;
 342   }
 343 }
 344
 345 SERVER_REC *silc_server_init_connect(SERVER_CONNECT_REC *conn)
 346 {
 347   SILC_SERVER_REC *server;
 348
 349   g_return_val_if_fail(IS_SILC_SERVER_CONNECT(conn), NULL);
 350   if (conn->address == NULL || *conn->address == '\0')
 351     return NULL;
 352   if (conn->nick == NULL || *conn->nick == '\0') {
 353     silc_say_error("Cannot connect: nickname is not set");
 354     return NULL;
 355   }
 356
 357   server = g_new0(SILC_SERVER_REC, 1);
 358   server->chat_type = SILC_PROTOCOL;
 359   server->connrec = (SILC_SERVER_CONNECT_REC *)conn;
 360   server_connect_ref(conn);
 361
 362   if (server->connrec->port <= 0)
 363     server->connrec->port = 706;
 364
 365   server_connect_init((SERVER_REC *)server);
 366   return (SERVER_REC *)server;
 367 }
 368
 369 void silc_server_connect(SERVER_REC *server)
 370 {
 371   if (!server_start_connect(server)) {
 372     server_connect_unref(server->connrec);
 373     g_free(server);
 374     return;
 375   }
 376 }
 377
 378 /* Return a string of all channels in server in server->channels_join()
 379    format */
 380
 381 char *silc_server_get_channels(SILC_SERVER_REC *server)
 382 {
 383   GSList *tmp;
 384   GString *chans;
 385   char *ret;
 386
 387   g_return_val_if_fail(server != NULL, FALSE);
 388
 389   chans = g_string_new(NULL);
 390   for (tmp = server->channels; tmp != NULL; tmp = tmp->next) {
 391     CHANNEL_REC *channel = tmp->data;
 392
 393     g_string_sprintfa(chans, "%s,", channel->name);
 394   }
 395
 396   if (chans->len > 0)
 397     g_string_truncate(chans, chans->len-1);
 398
 399   ret = chans->str;
 400   g_string_free(chans, FALSE);
 401
 402   return ret;
 403 }
 404
 405 /* Syntaxes of all SILC commands for HELP files (the help file generation
 406    will snoop these from here). */
 407
 408 /* SYNTAX: BAN <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 409 /* SYNTAX: CMODE <channel> +|-<modes> [{ <arguments>}] */
 410 /* SYNTAX: CUMODE <channel> +|-<modes> <nickname>[@<hostname>] */
 411 /* SYNTAX: GETKEY <nickname or server name> */
 412 /* SYNTAX: INVITE <channel> [<nickname>[@hostname>] */
 413 /* SYNTAX: INVITE <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 414 /* SYNTAX: KEY MSG <nickname> set|unset|list|agreement|negotiate [<arguments>] */
 415 /* SYNTAX: KEY CHANNEL <channel> set|unset|list|change [<arguments>] */
 416 /* SYNTAX: KICK <channel> <nickname>[@<hostname>] [<comment>] */
 417 /* SYNTAX: KILL <nickname>[@<hostname>] [<comment>] */
 418 /* SYNTAX: OPER <username> [-pubkey] */
 419 /* SYNTAX: SILCOPER <username> [-pubkey] */
 420 /* SYNTAX: TOPIC <channel> [<topic>] */
 421 /* SYNTAX: UMODE +|-<modes> */
 422 /* SYNTAX: WHOIS <nickname>[@<hostname>] [-details] [<count>] */
 423 /* SYNTAX: WHOWAS <nickname>[@<hostname>] [<count>] */
 424 /* SYNTAX: CLOSE <server> [<port>] */
 425 /* SYNTAX: SHUTDOWN */
 426 /* SYNTAX: MOTD [<server>] */
 427 /* SYNTAX: LIST [<channel>] */
 428 /* SYNTAX: ME <message> */
 429 /* SYNTAX: ACTION <channel> <message> */
 430 /* SYNTAX: AWAY [<message>] */
 431 /* SYNTAX: INFO [<server>] */
 432 /* SYNTAX: NICK <nickname> */
 433 /* SYNTAX: NOTICE <message> */
 434 /* SYNTAX: PART [<channel>] */
 435 /* SYNTAX: PING */
 436 /* SYNTAX: SCONNECT <server> [<port>] */
 437 /* SYNTAX: USERS <channel> */
 438 /* SYNTAX: FILE SEND <filepath> <nickname> [<local IP> [<local port>]] */
 439 /* SYNTAX: FILE RECEIVE [<nickname>] */
 440 /* SYNTAX: FILE CLOSE [<nickname>] */
 441 /* SYNTAX: FILE */
 442 /* SYNTAX: JOIN <channel> [<passphrase>] [-cipher <cipher>] [-hmac <hmac>] [-founder] */
 443 /* SYNTAX: DETACH */
 444 /* SYNTAX: WATCH [<-add | -del> <nickname>] */
 445 /* SYNTAX: STATS */
 446 /* SYNTAX: ATTR [<-del> <option> [{ <value>}]] */
 447
 448 void silc_command_exec(SILC_SERVER_REC *server,
 449                        const char *command, const char *args)
 450 {
 451   SilcUInt32 argc = 0;
 452   unsigned char **argv;
 453   SilcUInt32 *argv_lens, *argv_types;
 454   char *data, *tmpcmd;
 455   SilcClientCommand cmd;
 456   SilcClientCommandContext ctx;
 457
 458   g_return_if_fail(server != NULL);
 459
 460   tmpcmd = g_strdup(command);
 461   g_strup(tmpcmd);
 462   cmd = silc_client_command_find(silc_client, tmpcmd);
 463   g_free(tmpcmd);
 464   if (cmd == NULL)
 465     return;
 466
 467   /* Now parse all arguments */
 468   data = g_strconcat(command, " ", args, NULL);
 469   silc_parse_command_line(data, &argv, &argv_lens,
 470                           &argv_types, &argc, cmd->max_args);
 471   g_free(data);
 472
 473   /* Allocate command context. This and its internals must be free'd
 474      by the command routine receiving it. */
 475   ctx = silc_client_command_alloc();
 476   ctx->client = silc_client;
 477   ctx->conn = server->conn;
 478   ctx->command = cmd;
 479   ctx->argc = argc;
 480   ctx->argv = argv;
 481   ctx->argv_lens = argv_lens;
 482   ctx->argv_types = argv_types;
 483
 484   /* Execute command */
 485   silc_client_command_call(cmd, ctx);
 486 }
 487
 488 /* Generic command function to call any SILC command directly. */
 489
 490 static void command_self(const char *data, SILC_SERVER_REC *server,
 491                          WI_ITEM_REC *item)
 492 {
 493   CMD_SILC_SERVER(server);
 494
 495   if (!IS_SILC_SERVER(server) || !server->connected) {
 496     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 497     return;
 498   }
 499
 500   if (IS_SILC_CHANNEL(item)) {
 501     SILC_CHANNEL_REC *chanrec;
 502     chanrec = silc_channel_find(server, item->visible_name);
 503     if (chanrec)
 504       server->conn->current_channel = chanrec->entry;
 505   }
 506
 507   silc_command_exec(server, current_command, data);
 508   signal_stop();
 509 }
 510
 511 /* SCONNECT command.  Calls actually SILC's CONNECT command since Irssi
 512    has CONNECT command for other purposes. */
 513
 514 static void command_sconnect(const char *data, SILC_SERVER_REC *server)
 515 {
 516   CMD_SILC_SERVER(server);
 517   if (!IS_SILC_SERVER(server) || !server->connected) {
 518     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 519     return;
 520   }
 521
 522   silc_command_exec(server, "CONNECT", data);
 523   signal_stop();
 524 }
 525
 526 /* FILE command */
 527
 528 SILC_TASK_CALLBACK(silc_client_file_close_later)
 529 {
 530   FtpSession ftp = (FtpSession)context;
 531
 532   SILC_LOG_DEBUG(("Start"));
 533
 534   silc_client_file_close(silc_client, ftp->conn, ftp->session_id);
 535   silc_free(ftp->filepath);
 536   silc_free(ftp);
 537 }
 538
 539 static void silc_client_file_monitor(SilcClient client,
 540                                      SilcClientConnection conn,
 541                                      SilcClientMonitorStatus status,
 542                                      SilcClientFileError error,
 543                                      SilcUInt64 offset,
 544                                      SilcUInt64 filesize,
 545                                      SilcClientEntry client_entry,
 546                                      SilcUInt32 session_id,
 547                                      const char *filepath,
 548                                      void *context)
 549 {
 550   SILC_SERVER_REC *server = (SILC_SERVER_REC *)context;
 551   FtpSession ftp;
 552   char fsize[32];
 553
 554   snprintf(fsize, sizeof(fsize) - 1, "%llu", ((filesize + 1023) / 1024));
 555
 556   silc_dlist_start(server->ftp_sessions);
 557   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 558     if (ftp->session_id == session_id) {
 559       if (!ftp->filepath && filepath)
 560         ftp->filepath = strdup(filepath);
 561       break;
 562     }
 563   }
 564
 565   if (ftp == SILC_LIST_END)
 566     return;
 567
 568   if (status == SILC_CLIENT_FILE_MONITOR_ERROR) {
 569     if (error == SILC_CLIENT_FILE_NO_SUCH_FILE)
 570       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 571                          SILCTXT_FILE_ERROR_NO_SUCH_FILE,
 572                          client_entry->nickname,
 573                          filepath ? filepath : "[N/A]");
 574     else if (error == SILC_CLIENT_FILE_PERMISSION_DENIED)
 575       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 576                          SILCTXT_FILE_ERROR_PERMISSION_DENIED,
 577                          client_entry->nickname);
 578     else
 579       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 580                          SILCTXT_FILE_ERROR, client_entry->nickname);
 581     silc_schedule_task_add(silc_client->schedule, 0,
 582                            silc_client_file_close_later, ftp,
 583                            1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 584     if (ftp == server->current_session)
 585       server->current_session = NULL;
 586     silc_dlist_del(server->ftp_sessions, ftp);
 587   }
 588
 589   if (status == SILC_CLIENT_FILE_MONITOR_KEY_AGREEMENT) {
 590     printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 591                        SILCTXT_FILE_KEY_EXCHANGE, client_entry->nickname);
 592   }
 593
 594   /* Save some transmission data */
 595   if (offset && filesize) {
 596     unsigned long delta = time(NULL) - ftp->starttime;
 597
 598     ftp->percent = ((double)offset / (double)filesize) * (double)100.0;
 599     if (delta)
 600       ftp->kps = (double)((offset / (double)delta) + 1023) / (double)1024;
 601     else
 602       ftp->kps = (double)(offset + 1023) / (double)1024;
 603     ftp->offset = offset;
 604     ftp->filesize = filesize;
 605   }
 606
 607   if (status == SILC_CLIENT_FILE_MONITOR_SEND) {
 608     if (offset == 0) {
 609       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 610                          SILCTXT_FILE_TRANSMIT, filepath, fsize,
 611                          client_entry->nickname);
 612       ftp->starttime = time(NULL);
 613     }
 614     if (offset == filesize) {
 615       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 616                          SILCTXT_FILE_TRANSMITTED, filepath, fsize,
 617                          client_entry->nickname, ftp->kps);
 618       silc_schedule_task_add(silc_client->schedule, 0,
 619                              silc_client_file_close_later, ftp,
 620                              1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 621       if (ftp == server->current_session)
 622         server->current_session = NULL;
 623       silc_dlist_del(server->ftp_sessions, ftp);
 624     }
 625   }
 626
 627   if (status == SILC_CLIENT_FILE_MONITOR_RECEIVE) {
 628     if (offset == 0) {
 629       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 630                          SILCTXT_FILE_RECEIVE, filepath, fsize,
 631                          client_entry->nickname);
 632       ftp->starttime = time(NULL);
 633     }
 634
 635     if (offset == filesize) {
 636       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 637                          SILCTXT_FILE_RECEIVED, filepath, fsize,
 638                          client_entry->nickname, ftp->kps);
 639       silc_schedule_task_add(silc_client->schedule, 0,
 640                              silc_client_file_close_later, ftp,
 641                              1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 642       if (ftp == server->current_session)
 643         server->current_session = NULL;
 644       silc_dlist_del(server->ftp_sessions, ftp);
 645     }
 646   }
 647 }
 648
 649 typedef struct {
 650   SILC_SERVER_REC *server;
 651   char *data;
 652   char *nick;
 653   WI_ITEM_REC *item;
 654 } *FileGetClients;
 655
 656 static void silc_client_command_file_get_clients(SilcClient client,
 657                                                  SilcClientConnection conn,
 658                                                  SilcClientEntry *clients,
 659                                                  SilcUInt32 clients_count,
 660                                                  void *context)
 661 {
 662   FileGetClients internal = (FileGetClients)context;
 663
 664   if (!clients) {
 665     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Unknown nick: %s",
 666               internal->nick);
 667     silc_free(internal->data);
 668     silc_free(internal->nick);
 669     silc_free(internal);
 670     return;
 671   }
 672
 673   signal_emit("command file", 3, internal->data, internal->server,
 674               internal->item);
 675
 676   silc_free(internal->data);
 677   silc_free(internal->nick);
 678   silc_free(internal);
 679 }
 680
 681 static void command_file(const char *data, SILC_SERVER_REC *server,
 682                          WI_ITEM_REC *item)
 683 {
 684   SilcClientConnection conn;
 685   SilcClientEntry *entrys, client_entry;
 686   SilcClientFileError ret;
 687   SilcUInt32 entry_count;
 688   char *nickname = NULL, *tmp;
 689   unsigned char **argv;
 690   SilcUInt32 argc;
 691   SilcUInt32 *argv_lens, *argv_types;
 692   int type = 0;
 693   FtpSession ftp;
 694   char *local_ip = NULL;
 695   SilcUInt32 local_port = 0;
 696   SilcUInt32 session_id;
 697
 698   CMD_SILC_SERVER(server);
 699   if (!server || !IS_SILC_SERVER(server) || !server->connected)
 700     cmd_return_error(CMDERR_NOT_CONNECTED);
 701
 702   conn = server->conn;
 703
 704   /* Now parse all arguments */
 705   tmp = g_strconcat("FILE", " ", data, NULL);
 706   silc_parse_command_line(tmp, &argv, &argv_lens, &argv_types, &argc, 6);
 707   g_free(tmp);
 708
 709   if (argc == 1)
 710     type = 4;
 711
 712   if (argc >= 2) {
 713     if (!strcasecmp(argv[1], "send"))
 714       type = 1;
 715     if (!strcasecmp(argv[1], "receive"))
 716       type = 2;
 717     if (!strcasecmp(argv[1], "close"))
 718       type = 3;
 719   }
 720
 721   if (type == 0)
 722     cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 723
 724   switch (type) {
 725   case 1:
 726     if (argc < 4)
 727       cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 728
 729     /* Parse the typed nickname. */
 730     if (!silc_parse_userfqdn(argv[3], &nickname, NULL)) {
 731       printformat_module("fe-common/silc", server, NULL,
 732                          MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[3]);
 733       goto out;
 734     }
 735
 736     /* Find client entry */
 737     entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 738                                            argv[3], &entry_count);
 739     if (!entrys) {
 740       FileGetClients inter = silc_calloc(1, sizeof(*inter));
 741       inter->server = server;
 742       inter->data = strdup(data);
 743       inter->nick = strdup(nickname);
 744       inter->item = item;
 745       silc_client_get_clients(silc_client, conn, nickname, argv[3],
 746                               silc_client_command_file_get_clients, inter);
 747       goto out;
 748     }
 749     client_entry = entrys[0];
 750     silc_free(entrys);
 751
 752     if (argc >= 5)
 753       local_ip = argv[4];
 754     if (argc >= 6)
 755       local_port = atoi(argv[5]);
 756
 757     ret =
 758       silc_client_file_send(silc_client, conn, silc_client_file_monitor,
 759                             server, local_ip, local_port,
 760                             client_entry, argv[2], &session_id);
 761     if (ret == SILC_CLIENT_FILE_OK) {
 762       ftp = silc_calloc(1, sizeof(*ftp));
 763       ftp->session_id = session_id;
 764
 765       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 766                          SILCTXT_FILE_SEND, client_entry->nickname,
 767                          argv[2]);
 768
 769       ftp->client_entry = client_entry;
 770       ftp->filepath = strdup(argv[2]);
 771       ftp->conn = conn;
 772       ftp->send = TRUE;
 773       silc_dlist_add(server->ftp_sessions, ftp);
 774       server->current_session = ftp;
 775     } else {
 776       if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 777         printformat_module("fe-common/silc", server, NULL,
 778                            MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 779                            client_entry->nickname);
 780       if (ret == SILC_CLIENT_FILE_NO_SUCH_FILE)
 781         printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 782                            SILCTXT_FILE_ERROR_NO_SUCH_FILE,
 783                            client_entry->nickname, argv[2]);
 784     }
 785
 786     break;
 787
 788   case 2:
 789     /* Parse the typed nickname. */
 790     if (argc >= 3) {
 791       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
 792         printformat_module("fe-common/silc", server, NULL,
 793                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
 794         goto out;
 795       }
 796
 797       /* Find client entry */
 798       entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 799                                              argv[2], &entry_count);
 800       if (!entrys) {
 801         FileGetClients inter = silc_calloc(1, sizeof(*inter));
 802         inter->server = server;
 803         inter->data = strdup(data);
 804         inter->nick = strdup(nickname);
 805         inter->item = item;
 806         silc_client_get_clients(silc_client, conn, nickname, argv[2],
 807                                 silc_client_command_file_get_clients, inter);
 808         goto out;
 809       }
 810       client_entry = entrys[0];
 811       silc_free(entrys);
 812     } else {
 813       if (!server->current_session) {
 814         printformat_module("fe-common/silc", server, NULL,
 815                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 816         goto out;
 817       }
 818
 819       ret = silc_client_file_receive(silc_client, conn,
 820                                      silc_client_file_monitor, server, NULL,
 821                                      server->current_session->session_id);
 822       if (ret != SILC_CLIENT_FILE_OK) {
 823         if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 824           printformat_module("fe-common/silc", server, NULL,
 825                              MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 826                              server->current_session->client_entry->nickname);
 827         else
 828           printformat_module("fe-common/silc", server, NULL,
 829                              MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 830                              server->current_session->client_entry->nickname);
 831       }
 832
 833       goto out;
 834     }
 835
 836     silc_dlist_start(server->ftp_sessions);
 837     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 838       if (ftp->client_entry == client_entry && !ftp->filepath) {
 839         ret = silc_client_file_receive(silc_client, conn,
 840                                        silc_client_file_monitor, server,
 841                                        NULL, ftp->session_id);
 842         if (ret != SILC_CLIENT_FILE_OK) {
 843           if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 844             printformat_module("fe-common/silc", server, NULL,
 845                                MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 846                                client_entry->nickname);
 847           else
 848             printformat_module("fe-common/silc", server, NULL,
 849                                MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 850                                client_entry->nickname);
 851         }
 852         break;
 853       }
 854     }
 855
 856     if (ftp == SILC_LIST_END) {
 857       printformat_module("fe-common/silc", server, NULL,
 858                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 859                          client_entry->nickname);
 860       goto out;
 861     }
 862     break;
 863
 864   case 3:
 865     /* Parse the typed nickname. */
 866     if (argc >= 3) {
 867       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
 868         printformat_module("fe-common/silc", server, NULL,
 869                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
 870         goto out;
 871       }
 872
 873       /* Find client entry */
 874       entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 875                                              argv[2], &entry_count);
 876       if (!entrys) {
 877         FileGetClients inter = silc_calloc(1, sizeof(*inter));
 878         inter->server = server;
 879         inter->data = strdup(data);
 880         inter->nick = strdup(nickname);
 881         inter->item = item;
 882         silc_client_get_clients(silc_client, conn, nickname, argv[2],
 883                                 silc_client_command_file_get_clients, inter);
 884         goto out;
 885       }
 886       client_entry = entrys[0];
 887       silc_free(entrys);
 888     } else {
 889       if (!server->current_session) {
 890         printformat_module("fe-common/silc", server, NULL,
 891                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 892         goto out;
 893       }
 894
 895       silc_client_file_close(silc_client, conn,
 896                              server->current_session->session_id);
 897       printformat_module("fe-common/silc", server, NULL,
 898                          MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
 899                          server->current_session->client_entry->nickname,
 900                          server->current_session->filepath ?
 901                          server->current_session->filepath : "[N/A]");
 902       silc_dlist_del(server->ftp_sessions, server->current_session);
 903       silc_free(server->current_session->filepath);
 904       silc_free(server->current_session);
 905       server->current_session = NULL;
 906       goto out;
 907     }
 908
 909     silc_dlist_start(server->ftp_sessions);
 910     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 911       if (ftp->client_entry == client_entry) {
 912         silc_client_file_close(silc_client, conn, ftp->session_id);
 913         printformat_module("fe-common/silc", server, NULL,
 914                            MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
 915                            client_entry->nickname,
 916                            ftp->filepath ? ftp->filepath : "[N/A]");
 917         if (ftp == server->current_session)
 918           server->current_session = NULL;
 919         silc_dlist_del(server->ftp_sessions, ftp);
 920         silc_free(ftp->filepath);
 921         silc_free(ftp);
 922         break;
 923       }
 924     }
 925
 926     if (ftp == SILC_LIST_END) {
 927       printformat_module("fe-common/silc", server, NULL,
 928                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 929                          client_entry->nickname);
 930       goto out;
 931     }
 932     break;
 933
 934   case 4:
 935
 936     if (!silc_dlist_count(server->ftp_sessions)) {
 937       printformat_module("fe-common/silc", server, NULL,
 938                          MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 939       goto out;
 940     }
 941
 942     printformat_module("fe-common/silc", server, NULL,
 943                        MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_HEADER);
 944
 945     silc_dlist_start(server->ftp_sessions);
 946     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 947       printformat_module("fe-common/silc", server, NULL,
 948                          MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_LINE,
 949                          ftp->client_entry->nickname,
 950                          ftp->send ? "send" : "receive",
 951                          (SilcUInt32)(ftp->offset + 1023) / 1024,
 952                          (SilcUInt32)(ftp->filesize + 1023) / 1024,
 953                          ftp->percent, ftp->kps,
 954                          ftp->filepath ? ftp->filepath : "[N/A]");
 955     }
 956
 957     break;
 958
 959   default:
 960     break;
 961   }
 962
 963  out:
 964   silc_free(nickname);
 965 }
 966
 967 void silc_server_init(void)
 968 {
 969   silc_servers_reconnect_init();
 970
 971   signal_add_first("server connected", (SIGNAL_FUNC) sig_connected);
 972   signal_add("server disconnected", (SIGNAL_FUNC) sig_disconnected);
 973   signal_add("mime-send", (SIGNAL_FUNC)silc_send_mime);
 974   command_bind_silc("whois", MODULE_NAME, (SIGNAL_FUNC) command_self);
 975   command_bind_silc("whowas", MODULE_NAME, (SIGNAL_FUNC) command_self);
 976   command_bind_silc("nick", MODULE_NAME, (SIGNAL_FUNC) command_self);
 977   command_bind_silc("topic", MODULE_NAME, (SIGNAL_FUNC) command_self);
 978   command_bind_silc("cmode", MODULE_NAME, (SIGNAL_FUNC) command_self);
 979   command_bind_silc("cumode", MODULE_NAME, (SIGNAL_FUNC) command_self);
 980   command_bind_silc("users", MODULE_NAME, (SIGNAL_FUNC) command_self);
 981   command_bind_silc("list", MODULE_NAME, (SIGNAL_FUNC) command_self);
 982   command_bind_silc("ban", MODULE_NAME, (SIGNAL_FUNC) command_self);
 983   command_bind_silc("oper", MODULE_NAME, (SIGNAL_FUNC) command_self);
 984   command_bind_silc("silcoper", MODULE_NAME, (SIGNAL_FUNC) command_self);
 985   command_bind_silc("umode", MODULE_NAME, (SIGNAL_FUNC) command_self);
 986   command_bind_silc("invite", MODULE_NAME, (SIGNAL_FUNC) command_self);
 987   command_bind_silc("kill", MODULE_NAME, (SIGNAL_FUNC) command_self);
 988   command_bind_silc("kick", MODULE_NAME, (SIGNAL_FUNC) command_self);
 989   command_bind_silc("info", MODULE_NAME, (SIGNAL_FUNC) command_self);
 990   command_bind_silc("ping", MODULE_NAME, (SIGNAL_FUNC) command_self);
 991   command_bind_silc("motd", MODULE_NAME, (SIGNAL_FUNC) command_self);
 992   command_bind_silc("close", MODULE_NAME, (SIGNAL_FUNC) command_self);
 993   command_bind_silc("shutdown", MODULE_NAME, (SIGNAL_FUNC) command_self);
 994   command_bind_silc("getkey", MODULE_NAME, (SIGNAL_FUNC) command_self);
 995   command_bind_silc("sconnect", MODULE_NAME, (SIGNAL_FUNC) command_sconnect);
 996   command_bind_silc("file", MODULE_NAME, (SIGNAL_FUNC) command_file);
 997   command_bind_silc("detach", MODULE_NAME, (SIGNAL_FUNC) command_self);
 998   command_bind_silc("watch", MODULE_NAME, (SIGNAL_FUNC) command_self);
 999   command_bind_silc("stats", MODULE_NAME, (SIGNAL_FUNC) command_self);
1000   command_bind_silc("attr", MODULE_NAME, (SIGNAL_FUNC) command_attr);
1001
1002   command_set_options("connect", "+silcnet");
1003 }
1004
1005 void silc_server_deinit(void)
1006 {
1007   silc_servers_reconnect_deinit();
1008
1009   signal_remove("server connected", (SIGNAL_FUNC) sig_connected);
1010   signal_remove("server disconnected", (SIGNAL_FUNC) sig_disconnected);
1011   signal_remove("mime-send", (SIGNAL_FUNC)silc_send_mime);
1012   command_unbind("whois", (SIGNAL_FUNC) command_self);
1013   command_unbind("whowas", (SIGNAL_FUNC) command_self);
1014   command_unbind("nick", (SIGNAL_FUNC) command_self);
1015   command_unbind("topic", (SIGNAL_FUNC) command_self);
1016   command_unbind("cmode", (SIGNAL_FUNC) command_self);
1017   command_unbind("cumode", (SIGNAL_FUNC) command_self);
1018   command_unbind("users", (SIGNAL_FUNC) command_self);
1019   command_unbind("list", (SIGNAL_FUNC) command_self);
1020   command_unbind("oper", (SIGNAL_FUNC) command_self);
1021   command_unbind("silcoper", (SIGNAL_FUNC) command_self);
1022   command_unbind("umode", (SIGNAL_FUNC) command_self);
1023   command_unbind("invite", (SIGNAL_FUNC) command_self);
1024   command_unbind("kill", (SIGNAL_FUNC) command_self);
1025   command_unbind("kick", (SIGNAL_FUNC) command_self);
1026   command_unbind("info", (SIGNAL_FUNC) command_self);
1027   command_unbind("ping", (SIGNAL_FUNC) command_self);
1028   command_unbind("motd", (SIGNAL_FUNC) command_self);
1029   command_unbind("ban", (SIGNAL_FUNC) command_self);
1030   command_unbind("close", (SIGNAL_FUNC) command_self);
1031   command_unbind("shutdown", (SIGNAL_FUNC) command_self);
1032   command_unbind("getkey", (SIGNAL_FUNC) command_self);
1033   command_unbind("sconnect", (SIGNAL_FUNC) command_sconnect);
1034   command_unbind("file", (SIGNAL_FUNC) command_file);
1035   command_unbind("detach", (SIGNAL_FUNC) command_self);
1036   command_unbind("watch", (SIGNAL_FUNC) command_self);
1037   command_unbind("stats", (SIGNAL_FUNC) command_self);
1038   command_unbind("attr", (SIGNAL_FUNC) command_attr);
1039 }
1040
1041 void silc_server_free_ftp(SILC_SERVER_REC *server,
1042                           SilcClientEntry client_entry)
1043 {
1044   FtpSession ftp;
1045
1046   silc_dlist_start(server->ftp_sessions);
1047   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
1048     if (ftp->client_entry == client_entry) {
1049       silc_dlist_del(server->ftp_sessions, ftp);
1050       silc_free(ftp->filepath);
1051       silc_free(ftp);
1052     }
1053   }
1054 }
1055
1056 bool silc_term_utf8(void)
1057 {
1058   const char *str;
1059   str = settings_get_str("term_type");
1060   if (str)
1061     if (g_strcasecmp(str, "utf-8") == 0)
1062       return TRUE;
1063   return FALSE;
1064 }