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                               SilcMessageFlags flags)
  56 {
  57   SILC_CHANNEL_REC *rec;
  58
  59   rec = silc_channel_find(server, channel);
  60   if (rec == NULL || rec->entry == NULL) {
  61     cmd_return_error(CMDERR_NOT_JOINED);
  62     return;
  63   }
  64
  65   silc_client_send_channel_message(silc_client, server->conn, rec->entry,
  66                                    NULL, flags, 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                       SILC_MESSAGE_FLAG_UTF8);
 254   else
 255     silc_send_msg(server, target, message ? message : msg,
 256                   message ? strlen(message) : strlen(msg),
 257                   SILC_MESSAGE_FLAG_UTF8);
 258
 259   silc_free(message);
 260 }
 261
 262 void silc_send_heartbeat(SilcSocketConnection sock,
 263                          void *hb_context)
 264 {
 265   SILC_SERVER_REC *server = SILC_SERVER(hb_context);
 266
 267   if (server == NULL)
 268     return;
 269
 270   silc_client_send_packet(silc_client, server->conn, SILC_PACKET_HEARTBEAT,
 271                           NULL, 0);
 272 }
 273
 274 static void sig_connected(SILC_SERVER_REC *server)
 275 {
 276   SilcClientConnection conn;
 277   SilcClientConnectionParams params;
 278   char file[256];
 279   int fd;
 280
 281   if (!IS_SILC_SERVER(server))
 282     return;
 283
 284   /* Try to read detached session data and use it if found. */
 285   memset(&params, 0, sizeof(params));
 286   memset(file, 0, sizeof(file));
 287   snprintf(file, sizeof(file) - 1, "%s/session", get_irssi_dir());
 288   params.detach_data = silc_file_readfile(file, &params.detach_data_len);
 289   if (params.detach_data)
 290     params.detach_data[params.detach_data_len] = 0;
 291
 292   /* Add connection to the client library */
 293   conn = silc_client_add_connection(silc_client, &params,
 294                                     server->connrec->address,
 295                                     server->connrec->port,
 296                                     server);
 297   server->conn = conn;
 298
 299   if (params.detach_data)
 300     keyboard_entry_redirect(NULL,
 301                             "-- Resuming old session, may take a while ...",
 302                             ENTRY_REDIRECT_FLAG_HIDDEN, server);
 303
 304   silc_free(params.detach_data);
 305   unlink(file);
 306
 307   fd = g_io_channel_unix_get_fd(net_sendbuffer_handle(server->handle));
 308
 309   /* Start key exchange with the server */
 310   silc_client_start_key_exchange(silc_client, conn, fd);
 311
 312   /* Put default attributes */
 313   silc_query_attributes_default(silc_client, conn);
 314
 315   /* initialize heartbeat sending */
 316   if (settings_get_int("heartbeat") > 0)
 317     silc_socket_set_heartbeat(conn->sock, settings_get_int("heartbeat"),
 318                                 (void *)server,
 319                                 (SilcSocketConnectionHBCb)silc_send_heartbeat,
 320                                 silc_client->schedule);
 321
 322   server->ftp_sessions = silc_dlist_init();
 323   server->isnickflag = isnickflag_func;
 324   server->ischannel = ischannel_func;
 325   server->get_nick_flags = get_nick_flags;
 326   server->send_message = (void *) send_message;
 327 }
 328
 329 static void sig_disconnected(SILC_SERVER_REC *server)
 330 {
 331   if (!IS_SILC_SERVER(server))
 332     return;
 333
 334   silc_dlist_uninit(server->ftp_sessions);
 335
 336   if (server->conn && server->conn->sock != NULL) {
 337     silc_client_close_connection(silc_client, server->conn);
 338
 339     /* SILC closes the handle */
 340     g_io_channel_unref(net_sendbuffer_handle(server->handle));
 341     net_sendbuffer_destroy(server->handle, FALSE);
 342     server->handle = NULL;
 343   }
 344 }
 345
 346 SERVER_REC *silc_server_init_connect(SERVER_CONNECT_REC *conn)
 347 {
 348   SILC_SERVER_REC *server;
 349
 350   g_return_val_if_fail(IS_SILC_SERVER_CONNECT(conn), NULL);
 351   if (conn->address == NULL || *conn->address == '\0')
 352     return NULL;
 353   if (conn->nick == NULL || *conn->nick == '\0') {
 354     silc_say_error("Cannot connect: nickname is not set");
 355     return NULL;
 356   }
 357
 358   server = g_new0(SILC_SERVER_REC, 1);
 359   server->chat_type = SILC_PROTOCOL;
 360   server->connrec = (SILC_SERVER_CONNECT_REC *)conn;
 361   server_connect_ref(conn);
 362
 363   if (server->connrec->port <= 0)
 364     server->connrec->port = 706;
 365
 366   server_connect_init((SERVER_REC *)server);
 367   return (SERVER_REC *)server;
 368 }
 369
 370 void silc_server_connect(SERVER_REC *server)
 371 {
 372   if (!server_start_connect(server)) {
 373     server_connect_unref(server->connrec);
 374     g_free(server);
 375     return;
 376   }
 377 }
 378
 379 /* Return a string of all channels in server in server->channels_join()
 380    format */
 381
 382 char *silc_server_get_channels(SILC_SERVER_REC *server)
 383 {
 384   GSList *tmp;
 385   GString *chans;
 386   char *ret;
 387
 388   g_return_val_if_fail(server != NULL, FALSE);
 389
 390   chans = g_string_new(NULL);
 391   for (tmp = server->channels; tmp != NULL; tmp = tmp->next) {
 392     CHANNEL_REC *channel = tmp->data;
 393
 394     g_string_sprintfa(chans, "%s,", channel->name);
 395   }
 396
 397   if (chans->len > 0)
 398     g_string_truncate(chans, chans->len-1);
 399
 400   ret = chans->str;
 401   g_string_free(chans, FALSE);
 402
 403   return ret;
 404 }
 405
 406 /* Syntaxes of all SILC commands for HELP files (the help file generation
 407    will snoop these from here). */
 408
 409 /* SYNTAX: BAN <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 410 /* SYNTAX: CMODE <channel> +|-<modes> [{ <arguments>}] */
 411 /* SYNTAX: CUMODE <channel> +|-<modes> <nickname>[@<hostname>] */
 412 /* SYNTAX: GETKEY <nickname or server name> */
 413 /* SYNTAX: INVITE <channel> [<nickname>[@hostname>] */
 414 /* SYNTAX: INVITE <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 415 /* SYNTAX: KEY MSG <nickname> set|unset|list|agreement|negotiate [<arguments>] */
 416 /* SYNTAX: KEY CHANNEL <channel> set|unset|list|change [<arguments>] */
 417 /* SYNTAX: KICK <channel> <nickname>[@<hostname>] [<comment>] */
 418 /* SYNTAX: KILL <nickname>[@<hostname>] [<comment>] [-pubkey] */
 419 /* SYNTAX: OPER <username> [-pubkey] */
 420 /* SYNTAX: SILCOPER <username> [-pubkey] */
 421 /* SYNTAX: TOPIC <channel> [<topic>] */
 422 /* SYNTAX: UMODE +|-<modes> */
 423 /* SYNTAX: WHOIS <nickname>[@<hostname>] [-details] [<count>] */
 424 /* SYNTAX: WHOWAS <nickname>[@<hostname>] [<count>] */
 425 /* SYNTAX: CLOSE <server> [<port>] */
 426 /* SYNTAX: SHUTDOWN */
 427 /* SYNTAX: MOTD [<server>] */
 428 /* SYNTAX: LIST [<channel>] */
 429 /* SYNTAX: ME <message> */
 430 /* SYNTAX: ACTION <channel> <message> */
 431 /* SYNTAX: AWAY [<message>] */
 432 /* SYNTAX: INFO [<server>] */
 433 /* SYNTAX: NICK <nickname> */
 434 /* SYNTAX: NOTICE <message> */
 435 /* SYNTAX: PART [<channel>] */
 436 /* SYNTAX: PING */
 437 /* SYNTAX: SCONNECT <server> [<port>] */
 438 /* SYNTAX: USERS <channel> */
 439 /* SYNTAX: FILE SEND <filepath> <nickname> [<local IP> [<local port>]] [-no-listener]*/
 440 /* SYNTAX: FILE ACCEPT [<nickname>] */
 441 /* SYNTAX: FILE CLOSE [<nickname>] */
 442 /* SYNTAX: FILE */
 443 /* SYNTAX: JOIN <channel> [<passphrase>] [-cipher <cipher>] [-hmac <hmac>] [-founder] */
 444 /* SYNTAX: DETACH */
 445 /* SYNTAX: WATCH [<-add | -del> <nickname>] */
 446 /* SYNTAX: STATS */
 447 /* SYNTAX: ATTR [<-del> <option> [{ <value>}]] */
 448 /* SYNTAX: SMSG [<-channel>] <target> <message> */
 449
 450 void silc_command_exec(SILC_SERVER_REC *server,
 451                        const char *command, const char *args)
 452 {
 453   char *data;
 454   g_return_if_fail(server != NULL);
 455
 456   /* Call the command */
 457   data = g_strconcat(command, " ", args, NULL);
 458   silc_client_command_call(silc_client, server->conn, data);
 459   g_free(data);
 460 }
 461
 462 /* Generic command function to call any SILC command directly. */
 463
 464 static void command_self(const char *data, SILC_SERVER_REC *server,
 465                          WI_ITEM_REC *item)
 466 {
 467   CMD_SILC_SERVER(server);
 468
 469   if (!IS_SILC_SERVER(server) || !server->connected) {
 470     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 471     return;
 472   }
 473
 474   if (IS_SILC_CHANNEL(item)) {
 475     SILC_CHANNEL_REC *chanrec;
 476     chanrec = silc_channel_find(server, item->visible_name);
 477     if (chanrec)
 478       server->conn->current_channel = chanrec->entry;
 479   }
 480
 481   silc_command_exec(server, current_command, data);
 482   signal_stop();
 483 }
 484
 485 /* SCONNECT command.  Calls actually SILC's CONNECT command since Irssi
 486    has CONNECT command for other purposes. */
 487
 488 static void command_sconnect(const char *data, SILC_SERVER_REC *server)
 489 {
 490   CMD_SILC_SERVER(server);
 491   if (!IS_SILC_SERVER(server) || !server->connected) {
 492     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 493     return;
 494   }
 495
 496   silc_command_exec(server, "CONNECT", data);
 497   signal_stop();
 498 }
 499
 500 /* SMSG command, to send digitally signed messages */
 501
 502 static void command_smsg(const char *data, SILC_SERVER_REC *server,
 503                          WI_ITEM_REC *item)
 504 {
 505   GHashTable *optlist;
 506   char *target, *origtarget, *msg;
 507   void *free_arg;
 508   int free_ret, target_type;
 509
 510   g_return_if_fail(data != NULL);
 511   if (server == NULL || !server->connected)
 512     cmd_param_error(CMDERR_NOT_CONNECTED);
 513
 514   if (!cmd_get_params(data, &free_arg, 2 | PARAM_FLAG_OPTIONS |
 515                       PARAM_FLAG_UNKNOWN_OPTIONS | PARAM_FLAG_GETREST,
 516                       "msg", &optlist, &target, &msg))
 517     return;
 518   if (*target == '\0' || *msg == '\0')
 519     cmd_param_error(CMDERR_NOT_ENOUGH_PARAMS);
 520
 521   origtarget = target;
 522   free_ret = FALSE;
 523
 524   if (strcmp(target, "*") == 0) {
 525     if (item == NULL)
 526       cmd_param_error(CMDERR_NOT_JOINED);
 527
 528     target_type = IS_CHANNEL(item) ?
 529       SEND_TARGET_CHANNEL : SEND_TARGET_NICK;
 530     target = (char *) window_item_get_target(item);
 531   } else if (g_hash_table_lookup(optlist, "channel") != NULL) {
 532     target_type = SEND_TARGET_CHANNEL;
 533   } else {
 534     target_type = server_ischannel(SERVER(server), target) ?
 535       SEND_TARGET_CHANNEL : SEND_TARGET_NICK;
 536   }
 537
 538   if (target != NULL) {
 539     char *message = NULL;
 540     int len;
 541
 542     if (!silc_term_utf8()) {
 543       len = silc_utf8_encoded_len(msg, strlen(msg), SILC_STRING_LANGUAGE);
 544       message = silc_calloc(len + 1, sizeof(*message));
 545       g_return_if_fail(message != NULL);
 546       silc_utf8_encode(msg, strlen(msg), SILC_STRING_LANGUAGE, message, len);
 547     }
 548
 549     if (target_type == SEND_TARGET_CHANNEL)
 550       silc_send_channel(server, target, message ? message : msg,
 551                         SILC_MESSAGE_FLAG_UTF8 |
 552                         SILC_MESSAGE_FLAG_SIGNED);
 553     else
 554       silc_send_msg(server, target, message ? message : msg,
 555                     message ? strlen(message) : strlen(msg),
 556                     SILC_MESSAGE_FLAG_UTF8 |
 557                     SILC_MESSAGE_FLAG_SIGNED);
 558     silc_free(message);
 559   }
 560
 561   signal_emit(target != NULL && target_type == SEND_TARGET_CHANNEL ?
 562               "message signed_own_public" : "message signed_own_private", 4,
 563               server, msg, target, origtarget);
 564
 565   if (free_ret && target != NULL) g_free(target);
 566   cmd_params_free(free_arg);
 567 }
 568
 569 /* FILE command */
 570
 571 SILC_TASK_CALLBACK(silc_client_file_close_later)
 572 {
 573   FtpSession ftp = (FtpSession)context;
 574
 575   SILC_LOG_DEBUG(("Start"));
 576
 577   silc_client_file_close(silc_client, ftp->conn, ftp->session_id);
 578   silc_free(ftp->filepath);
 579   silc_free(ftp);
 580 }
 581
 582 static void silc_client_file_monitor(SilcClient client,
 583                                      SilcClientConnection conn,
 584                                      SilcClientMonitorStatus status,
 585                                      SilcClientFileError error,
 586                                      SilcUInt64 offset,
 587                                      SilcUInt64 filesize,
 588                                      SilcClientEntry client_entry,
 589                                      SilcUInt32 session_id,
 590                                      const char *filepath,
 591                                      void *context)
 592 {
 593   SILC_SERVER_REC *server = (SILC_SERVER_REC *)context;
 594   FtpSession ftp;
 595   char fsize[32];
 596
 597   snprintf(fsize, sizeof(fsize) - 1, "%llu", ((filesize + 1023) / 1024));
 598
 599   silc_dlist_start(server->ftp_sessions);
 600   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 601     if (ftp->session_id == session_id) {
 602       if (!ftp->filepath && filepath)
 603         ftp->filepath = strdup(filepath);
 604       break;
 605     }
 606   }
 607
 608   if (ftp == SILC_LIST_END)
 609     return;
 610
 611   if (status == SILC_CLIENT_FILE_MONITOR_ERROR) {
 612     if (error == SILC_CLIENT_FILE_NO_SUCH_FILE)
 613       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 614                          SILCTXT_FILE_ERROR_NO_SUCH_FILE,
 615                          client_entry->nickname,
 616                          filepath ? filepath : "[N/A]");
 617     else if (error == SILC_CLIENT_FILE_PERMISSION_DENIED)
 618       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 619                          SILCTXT_FILE_ERROR_PERMISSION_DENIED,
 620                          client_entry->nickname);
 621     else
 622       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 623                          SILCTXT_FILE_ERROR, client_entry->nickname);
 624     silc_schedule_task_add(silc_client->schedule, 0,
 625                            silc_client_file_close_later, ftp,
 626                            1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 627     if (ftp == server->current_session)
 628       server->current_session = NULL;
 629     silc_dlist_del(server->ftp_sessions, ftp);
 630   }
 631
 632   if (status == SILC_CLIENT_FILE_MONITOR_KEY_AGREEMENT) {
 633     printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 634                        SILCTXT_FILE_KEY_EXCHANGE, client_entry->nickname);
 635   }
 636
 637   /* Save some transmission data */
 638   if (offset && filesize) {
 639     unsigned long delta = time(NULL) - ftp->starttime;
 640
 641     ftp->percent = ((double)offset / (double)filesize) * (double)100.0;
 642     if (delta)
 643       ftp->kps = (double)((offset / (double)delta) + 1023) / (double)1024;
 644     else
 645       ftp->kps = (double)(offset + 1023) / (double)1024;
 646     ftp->offset = offset;
 647     ftp->filesize = filesize;
 648   }
 649
 650   if (status == SILC_CLIENT_FILE_MONITOR_SEND) {
 651     if (offset == 0) {
 652       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 653                          SILCTXT_FILE_TRANSMIT, filepath, fsize,
 654                          client_entry->nickname);
 655       ftp->starttime = time(NULL);
 656     }
 657     if (offset == filesize) {
 658       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 659                          SILCTXT_FILE_TRANSMITTED, filepath, fsize,
 660                          client_entry->nickname, ftp->kps);
 661       silc_schedule_task_add(silc_client->schedule, 0,
 662                              silc_client_file_close_later, ftp,
 663                              1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 664       if (ftp == server->current_session)
 665         server->current_session = NULL;
 666       silc_dlist_del(server->ftp_sessions, ftp);
 667     }
 668   }
 669
 670   if (status == SILC_CLIENT_FILE_MONITOR_RECEIVE) {
 671     if (offset == 0) {
 672       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 673                          SILCTXT_FILE_RECEIVE, filepath, fsize,
 674                          client_entry->nickname);
 675       ftp->starttime = time(NULL);
 676     }
 677
 678     if (offset == filesize) {
 679       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 680                          SILCTXT_FILE_RECEIVED, filepath, fsize,
 681                          client_entry->nickname, ftp->kps);
 682       silc_schedule_task_add(silc_client->schedule, 0,
 683                              silc_client_file_close_later, ftp,
 684                              1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
 685       if (ftp == server->current_session)
 686         server->current_session = NULL;
 687       silc_dlist_del(server->ftp_sessions, ftp);
 688     }
 689   }
 690 }
 691
 692 typedef struct {
 693   SILC_SERVER_REC *server;
 694   char *data;
 695   char *nick;
 696   WI_ITEM_REC *item;
 697 } *FileGetClients;
 698
 699 static void silc_client_command_file_get_clients(SilcClient client,
 700                                                  SilcClientConnection conn,
 701                                                  SilcClientEntry *clients,
 702                                                  SilcUInt32 clients_count,
 703                                                  void *context)
 704 {
 705   FileGetClients internal = (FileGetClients)context;
 706
 707   if (!clients) {
 708     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Unknown nick: %s",
 709               internal->nick);
 710     silc_free(internal->data);
 711     silc_free(internal->nick);
 712     silc_free(internal);
 713     return;
 714   }
 715
 716   signal_emit("command file", 3, internal->data, internal->server,
 717               internal->item);
 718
 719   silc_free(internal->data);
 720   silc_free(internal->nick);
 721   silc_free(internal);
 722 }
 723
 724 static void command_file(const char *data, SILC_SERVER_REC *server,
 725                          WI_ITEM_REC *item)
 726 {
 727   SilcClientConnection conn;
 728   SilcClientEntry *entrys, client_entry;
 729   SilcClientFileError ret;
 730   SilcUInt32 entry_count;
 731   char *nickname = NULL, *tmp;
 732   unsigned char **argv;
 733   SilcUInt32 argc;
 734   SilcUInt32 *argv_lens, *argv_types;
 735   int type = 0;
 736   FtpSession ftp;
 737   char *local_ip = NULL;
 738   SilcUInt32 local_port = 0;
 739   SilcUInt32 session_id;
 740   bool do_not_bind = FALSE;
 741
 742   CMD_SILC_SERVER(server);
 743   if (!server || !IS_SILC_SERVER(server) || !server->connected)
 744     cmd_return_error(CMDERR_NOT_CONNECTED);
 745
 746   conn = server->conn;
 747
 748   /* Now parse all arguments */
 749   tmp = g_strconcat("FILE", " ", data, NULL);
 750   silc_parse_command_line(tmp, &argv, &argv_lens, &argv_types, &argc, 7);
 751   g_free(tmp);
 752
 753   if (argc == 1)
 754     type = 4;
 755
 756   if (argc >= 2) {
 757     if (!strcasecmp(argv[1], "send"))
 758       type = 1;
 759     if (!strcasecmp(argv[1], "accept"))
 760       type = 2;
 761     if (!strcasecmp(argv[1], "close"))
 762       type = 3;
 763   }
 764
 765   if (type == 0)
 766     cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 767
 768   switch (type) {
 769   case 1:
 770     if (argc < 4)
 771       cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
 772
 773     /* Parse the typed nickname. */
 774     if (!silc_parse_userfqdn(argv[3], &nickname, NULL)) {
 775       printformat_module("fe-common/silc", server, NULL,
 776                          MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[3]);
 777       goto out;
 778     }
 779
 780     /* Find client entry */
 781     entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 782                                            argv[3], &entry_count);
 783     if (!entrys) {
 784       FileGetClients inter = silc_calloc(1, sizeof(*inter));
 785       inter->server = server;
 786       inter->data = strdup(data);
 787       inter->nick = strdup(nickname);
 788       inter->item = item;
 789       silc_client_get_clients(silc_client, conn, nickname, argv[3],
 790                               silc_client_command_file_get_clients, inter);
 791       goto out;
 792     }
 793     client_entry = entrys[0];
 794     silc_free(entrys);
 795
 796     if (argc >= 5) {
 797       if (!strcasecmp(argv[4], "-no-listener"))
 798         do_not_bind = TRUE;
 799       else
 800         local_ip = argv[4];
 801     }
 802     if (argc >= 6) {
 803       if (!strcasecmp(argv[5], "-no-listener"))
 804         do_not_bind = TRUE;
 805       else
 806         local_port = atoi(argv[5]);
 807     }
 808     if (argc >= 7) {
 809       if (!strcasecmp(argv[6], "-no-listener"))
 810         do_not_bind = TRUE;
 811     }
 812
 813     ret =
 814       silc_client_file_send(silc_client, conn, silc_client_file_monitor,
 815                             server, local_ip, local_port, do_not_bind,
 816                             client_entry, argv[2], &session_id);
 817     if (ret == SILC_CLIENT_FILE_OK) {
 818       ftp = silc_calloc(1, sizeof(*ftp));
 819       ftp->session_id = session_id;
 820
 821       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 822                          SILCTXT_FILE_SEND, client_entry->nickname,
 823                          argv[2]);
 824
 825       ftp->client_entry = client_entry;
 826       ftp->filepath = strdup(argv[2]);
 827       ftp->conn = conn;
 828       ftp->send = TRUE;
 829       silc_dlist_add(server->ftp_sessions, ftp);
 830       server->current_session = ftp;
 831     } else {
 832       if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 833         printformat_module("fe-common/silc", server, NULL,
 834                            MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 835                            client_entry->nickname);
 836       if (ret == SILC_CLIENT_FILE_NO_SUCH_FILE)
 837         printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
 838                            SILCTXT_FILE_ERROR_NO_SUCH_FILE,
 839                            client_entry->nickname, argv[2]);
 840     }
 841
 842     break;
 843
 844   case 2:
 845     /* Parse the typed nickname. */
 846     if (argc >= 3) {
 847       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
 848         printformat_module("fe-common/silc", server, NULL,
 849                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
 850         goto out;
 851       }
 852
 853       /* Find client entry */
 854       entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 855                                              argv[2], &entry_count);
 856       if (!entrys) {
 857         FileGetClients inter = silc_calloc(1, sizeof(*inter));
 858         inter->server = server;
 859         inter->data = strdup(data);
 860         inter->nick = strdup(nickname);
 861         inter->item = item;
 862         silc_client_get_clients(silc_client, conn, nickname, argv[2],
 863                                 silc_client_command_file_get_clients, inter);
 864         goto out;
 865       }
 866       client_entry = entrys[0];
 867       silc_free(entrys);
 868     } else {
 869       if (!server->current_session) {
 870         printformat_module("fe-common/silc", server, NULL,
 871                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 872         goto out;
 873       }
 874
 875       ret = silc_client_file_receive(silc_client, conn,
 876                                      silc_client_file_monitor, server, NULL,
 877                                      server->current_session->session_id);
 878       if (ret != SILC_CLIENT_FILE_OK) {
 879         if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 880           printformat_module("fe-common/silc", server, NULL,
 881                              MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 882                              server->current_session->client_entry->nickname);
 883         else
 884           printformat_module("fe-common/silc", server, NULL,
 885                              MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 886                              server->current_session->client_entry->nickname);
 887       }
 888
 889       goto out;
 890     }
 891
 892     silc_dlist_start(server->ftp_sessions);
 893     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 894       if (ftp->client_entry == client_entry && !ftp->filepath) {
 895         ret = silc_client_file_receive(silc_client, conn,
 896                                        silc_client_file_monitor, server,
 897                                        NULL, ftp->session_id);
 898         if (ret != SILC_CLIENT_FILE_OK) {
 899           if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
 900             printformat_module("fe-common/silc", server, NULL,
 901                                MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
 902                                client_entry->nickname);
 903           else
 904             printformat_module("fe-common/silc", server, NULL,
 905                                MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 906                                client_entry->nickname);
 907         }
 908         break;
 909       }
 910     }
 911
 912     if (ftp == SILC_LIST_END) {
 913       printformat_module("fe-common/silc", server, NULL,
 914                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 915                          client_entry->nickname);
 916       goto out;
 917     }
 918     break;
 919
 920   case 3:
 921     /* Parse the typed nickname. */
 922     if (argc >= 3) {
 923       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
 924         printformat_module("fe-common/silc", server, NULL,
 925                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
 926         goto out;
 927       }
 928
 929       /* Find client entry */
 930       entrys = silc_client_get_clients_local(silc_client, conn, nickname,
 931                                              argv[2], &entry_count);
 932       if (!entrys) {
 933         FileGetClients inter = silc_calloc(1, sizeof(*inter));
 934         inter->server = server;
 935         inter->data = strdup(data);
 936         inter->nick = strdup(nickname);
 937         inter->item = item;
 938         silc_client_get_clients(silc_client, conn, nickname, argv[2],
 939                                 silc_client_command_file_get_clients, inter);
 940         goto out;
 941       }
 942       client_entry = entrys[0];
 943       silc_free(entrys);
 944     } else {
 945       if (!server->current_session) {
 946         printformat_module("fe-common/silc", server, NULL,
 947                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 948         goto out;
 949       }
 950
 951       silc_client_file_close(silc_client, conn,
 952                              server->current_session->session_id);
 953       printformat_module("fe-common/silc", server, NULL,
 954                          MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
 955                          server->current_session->client_entry->nickname,
 956                          server->current_session->filepath ?
 957                          server->current_session->filepath : "[N/A]");
 958       silc_dlist_del(server->ftp_sessions, server->current_session);
 959       silc_free(server->current_session->filepath);
 960       silc_free(server->current_session);
 961       server->current_session = NULL;
 962       goto out;
 963     }
 964
 965     silc_dlist_start(server->ftp_sessions);
 966     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
 967       if (ftp->client_entry == client_entry) {
 968         silc_client_file_close(silc_client, conn, ftp->session_id);
 969         printformat_module("fe-common/silc", server, NULL,
 970                            MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
 971                            client_entry->nickname,
 972                            ftp->filepath ? ftp->filepath : "[N/A]");
 973         if (ftp == server->current_session)
 974           server->current_session = NULL;
 975         silc_dlist_del(server->ftp_sessions, ftp);
 976         silc_free(ftp->filepath);
 977         silc_free(ftp);
 978         break;
 979       }
 980     }
 981
 982     if (ftp == SILC_LIST_END) {
 983       printformat_module("fe-common/silc", server, NULL,
 984                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
 985                          client_entry->nickname);
 986       goto out;
 987     }
 988     break;
 989
 990   case 4:
 991
 992     if (!silc_dlist_count(server->ftp_sessions)) {
 993       printformat_module("fe-common/silc", server, NULL,
 994                          MSGLEVEL_CRAP, SILCTXT_FILE_NA);
 995       goto out;
 996     }
 997
 998     printformat_module("fe-common/silc", server, NULL,
 999                        MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_HEADER);
1000
1001     silc_dlist_start(server->ftp_sessions);
1002     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
1003       printformat_module("fe-common/silc", server, NULL,
1004                          MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_LINE,
1005                          ftp->client_entry->nickname,
1006                          ftp->send ? "send" : "receive",
1007                          (SilcUInt32)(ftp->offset + 1023) / 1024,
1008                          (SilcUInt32)(ftp->filesize + 1023) / 1024,
1009                          ftp->percent, ftp->kps,
1010                          ftp->filepath ? ftp->filepath : "[N/A]");
1011     }
1012
1013     break;
1014
1015   default:
1016     break;
1017   }
1018
1019  out:
1020   silc_free(nickname);
1021 }
1022
1023 void silc_server_init(void)
1024 {
1025   silc_servers_reconnect_init();
1026
1027   signal_add_first("server connected", (SIGNAL_FUNC) sig_connected);
1028   signal_add("server disconnected", (SIGNAL_FUNC) sig_disconnected);
1029   signal_add("mime-send", (SIGNAL_FUNC)silc_send_mime);
1030   command_bind_silc("whois", MODULE_NAME, (SIGNAL_FUNC) command_self);
1031   command_bind_silc("whowas", MODULE_NAME, (SIGNAL_FUNC) command_self);
1032   command_bind_silc("nick", MODULE_NAME, (SIGNAL_FUNC) command_self);
1033   command_bind_silc("topic", MODULE_NAME, (SIGNAL_FUNC) command_self);
1034   command_bind_silc("cmode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1035   command_bind_silc("cumode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1036   command_bind_silc("users", MODULE_NAME, (SIGNAL_FUNC) command_self);
1037   command_bind_silc("list", MODULE_NAME, (SIGNAL_FUNC) command_self);
1038   command_bind_silc("ban", MODULE_NAME, (SIGNAL_FUNC) command_self);
1039   command_bind_silc("oper", MODULE_NAME, (SIGNAL_FUNC) command_self);
1040   command_bind_silc("silcoper", MODULE_NAME, (SIGNAL_FUNC) command_self);
1041   command_bind_silc("umode", MODULE_NAME, (SIGNAL_FUNC) command_self);
1042   command_bind_silc("invite", MODULE_NAME, (SIGNAL_FUNC) command_self);
1043   command_bind_silc("kill", MODULE_NAME, (SIGNAL_FUNC) command_self);
1044   command_bind_silc("kick", MODULE_NAME, (SIGNAL_FUNC) command_self);
1045   command_bind_silc("info", MODULE_NAME, (SIGNAL_FUNC) command_self);
1046   command_bind_silc("ping", MODULE_NAME, (SIGNAL_FUNC) command_self);
1047   command_bind_silc("motd", MODULE_NAME, (SIGNAL_FUNC) command_self);
1048   command_bind_silc("close", MODULE_NAME, (SIGNAL_FUNC) command_self);
1049   command_bind_silc("shutdown", MODULE_NAME, (SIGNAL_FUNC) command_self);
1050   command_bind_silc("getkey", MODULE_NAME, (SIGNAL_FUNC) command_self);
1051   command_bind_silc("sconnect", MODULE_NAME, (SIGNAL_FUNC) command_sconnect);
1052   command_bind_silc("file", MODULE_NAME, (SIGNAL_FUNC) command_file);
1053   command_bind_silc("detach", MODULE_NAME, (SIGNAL_FUNC) command_self);
1054   command_bind_silc("watch", MODULE_NAME, (SIGNAL_FUNC) command_self);
1055   command_bind_silc("stats", MODULE_NAME, (SIGNAL_FUNC) command_self);
1056   command_bind_silc("attr", MODULE_NAME, (SIGNAL_FUNC) command_attr);
1057   command_bind_silc("smsg", MODULE_NAME, (SIGNAL_FUNC) command_smsg);
1058
1059   command_set_options("connect", "+silcnet");
1060 }
1061
1062 void silc_server_deinit(void)
1063 {
1064   silc_servers_reconnect_deinit();
1065
1066   signal_remove("server connected", (SIGNAL_FUNC) sig_connected);
1067   signal_remove("server disconnected", (SIGNAL_FUNC) sig_disconnected);
1068   signal_remove("mime-send", (SIGNAL_FUNC)silc_send_mime);
1069   command_unbind("whois", (SIGNAL_FUNC) command_self);
1070   command_unbind("whowas", (SIGNAL_FUNC) command_self);
1071   command_unbind("nick", (SIGNAL_FUNC) command_self);
1072   command_unbind("topic", (SIGNAL_FUNC) command_self);
1073   command_unbind("cmode", (SIGNAL_FUNC) command_self);
1074   command_unbind("cumode", (SIGNAL_FUNC) command_self);
1075   command_unbind("users", (SIGNAL_FUNC) command_self);
1076   command_unbind("list", (SIGNAL_FUNC) command_self);
1077   command_unbind("oper", (SIGNAL_FUNC) command_self);
1078   command_unbind("silcoper", (SIGNAL_FUNC) command_self);
1079   command_unbind("umode", (SIGNAL_FUNC) command_self);
1080   command_unbind("invite", (SIGNAL_FUNC) command_self);
1081   command_unbind("kill", (SIGNAL_FUNC) command_self);
1082   command_unbind("kick", (SIGNAL_FUNC) command_self);
1083   command_unbind("info", (SIGNAL_FUNC) command_self);
1084   command_unbind("ping", (SIGNAL_FUNC) command_self);
1085   command_unbind("motd", (SIGNAL_FUNC) command_self);
1086   command_unbind("ban", (SIGNAL_FUNC) command_self);
1087   command_unbind("close", (SIGNAL_FUNC) command_self);
1088   command_unbind("shutdown", (SIGNAL_FUNC) command_self);
1089   command_unbind("getkey", (SIGNAL_FUNC) command_self);
1090   command_unbind("sconnect", (SIGNAL_FUNC) command_sconnect);
1091   command_unbind("file", (SIGNAL_FUNC) command_file);
1092   command_unbind("detach", (SIGNAL_FUNC) command_self);
1093   command_unbind("watch", (SIGNAL_FUNC) command_self);
1094   command_unbind("stats", (SIGNAL_FUNC) command_self);
1095   command_unbind("attr", (SIGNAL_FUNC) command_attr);
1096   command_unbind("smsg", (SIGNAL_FUNC) command_smsg);
1097 }
1098
1099 void silc_server_free_ftp(SILC_SERVER_REC *server,
1100                           SilcClientEntry client_entry)
1101 {
1102   FtpSession ftp;
1103
1104   silc_dlist_start(server->ftp_sessions);
1105   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
1106     if (ftp->client_entry == client_entry) {
1107       silc_dlist_del(server->ftp_sessions, ftp);
1108       silc_free(ftp->filepath);
1109       silc_free(ftp);
1110     }
1111   }
1112 }
1113
1114 bool silc_term_utf8(void)
1115 {
1116   const char *str;
1117   str = settings_get_str("term_type");
1118   if (str)
1119     if (g_strcasecmp(str, "utf-8") == 0)
1120       return TRUE;
1121   return FALSE;
1122 }