updates.
[silc.git] / 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   if (!clients) {
133     rec = g_new0(PRIVMSG_REC, 1);
134     rec->nick = g_strdup(nick);
135     rec->msg = g_strdup(msg);
136     rec->server = server;
137
138     /* Could not find client with that nick, resolve it from server. */
139     silc_client_get_clients(silc_client, server->conn,
140                             nickname, NULL, silc_send_msg_clients, rec);
141     silc_free(nickname);
142     return;
143   }
144
145   /* Send the private message directly */
146   silc_free(nickname);
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 <filepath> <nickname> [<local IP> [<local port>]] */
312 /* SYNTAX: FILE RECEIVE [<nickname>] */
313 /* SYNTAX: FILE CLOSE [<nickname>] */
314 /* SYNTAX: FILE */
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                                      SilcClientFileError error,
425                                      uint64 offset,
426                                      uint64 filesize,
427                                      SilcClientEntry client_entry,
428                                      uint32 session_id,
429                                      const char *filepath,
430                                      void *context)
431 {
432   SILC_SERVER_REC *server = (SILC_SERVER_REC *)context;
433   FtpSession ftp;
434   char fsize[32];
435
436   snprintf(fsize, sizeof(fsize) - 1, "%llu", ((filesize + 1023) / 1024));
437
438   silc_dlist_start(server->ftp_sessions);
439   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
440     if (ftp->session_id == session_id) {
441       if (!ftp->filepath && filepath)
442         ftp->filepath = strdup(filepath);
443       break;
444     }
445   }
446
447   if (ftp == SILC_LIST_END)
448     return;
449
450   if (status == SILC_CLIENT_FILE_MONITOR_ERROR) {
451     if (error == SILC_CLIENT_FILE_NO_SUCH_FILE)
452       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
453                          SILCTXT_FILE_ERROR_NO_SUCH_FILE, 
454                          client_entry->nickname, 
455                          filepath ? filepath : "[N/A]");
456     else if (error == SILC_CLIENT_FILE_PERMISSION_DENIED)
457       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
458                          SILCTXT_FILE_ERROR_PERMISSION_DENIED, 
459                          client_entry->nickname);
460     else
461       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
462                          SILCTXT_FILE_ERROR, client_entry->nickname);
463     silc_schedule_task_add(silc_client->schedule, 0,
464                            silc_client_file_close_later, ftp,
465                            1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
466     if (ftp == server->current_session)
467       server->current_session = NULL;
468     silc_dlist_del(server->ftp_sessions, ftp);
469   }
470
471   if (status == SILC_CLIENT_FILE_MONITOR_KEY_AGREEMENT) {
472     printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
473                        SILCTXT_FILE_KEY_EXCHANGE, client_entry->nickname);
474   }
475
476   /* Save some transmission data */
477   if (offset && filesize) {
478     unsigned long delta = time(NULL) - ftp->starttime;
479
480     ftp->percent = ((double)offset / (double)filesize) * (double)100.0;
481     if (delta)
482       ftp->kps = (double)((offset / (double)delta) + 1023) / (double)1024;
483     else
484       ftp->kps = (double)(offset + 1023) / (double)1024;
485     ftp->offset = offset;
486     ftp->filesize = filesize;
487   }
488
489   if (status == SILC_CLIENT_FILE_MONITOR_SEND) {
490     if (offset == 0) {
491       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
492                          SILCTXT_FILE_TRANSMIT, filepath, fsize,
493                          client_entry->nickname);
494       ftp->starttime = time(NULL);
495     }
496     if (offset == filesize) {
497       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
498                          SILCTXT_FILE_TRANSMITTED, filepath, fsize,
499                          client_entry->nickname, ftp->kps);
500       silc_schedule_task_add(silc_client->schedule, 0,
501                              silc_client_file_close_later, ftp,
502                              1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
503       if (ftp == server->current_session)
504         server->current_session = NULL;
505       silc_dlist_del(server->ftp_sessions, ftp);
506     }
507   }
508
509   if (status == SILC_CLIENT_FILE_MONITOR_RECEIVE) {
510     if (offset == 0) {
511       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
512                          SILCTXT_FILE_RECEIVE, filepath, fsize,
513                          client_entry->nickname);
514       ftp->starttime = time(NULL);
515     }
516
517     if (offset == filesize) {
518       printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
519                          SILCTXT_FILE_RECEIVED, filepath, fsize,
520                          client_entry->nickname, ftp->kps);
521       silc_schedule_task_add(silc_client->schedule, 0,
522                              silc_client_file_close_later, ftp,
523                              1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
524       if (ftp == server->current_session)
525         server->current_session = NULL;
526       silc_dlist_del(server->ftp_sessions, ftp);
527     }
528   }
529 }
530
531 typedef struct {
532   SILC_SERVER_REC *server;
533   char *data;
534   char *nick;
535   WI_ITEM_REC *item;
536 } *FileGetClients;
537
538 static void silc_client_command_file_get_clients(SilcClient client,
539                                                  SilcClientConnection conn,
540                                                  SilcClientEntry *clients,
541                                                  uint32 clients_count,
542                                                  void *context)
543 {
544   FileGetClients internal = (FileGetClients)context;
545
546   if (!clients) {
547     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Unknown nick: %s", 
548               internal->nick);
549     silc_free(internal->data);
550     silc_free(internal->nick);
551     silc_free(internal);
552     return;
553   }
554
555   signal_emit("command file", 3, internal->data, internal->server,
556               internal->item);
557
558   silc_free(internal->data);
559   silc_free(internal->nick);
560   silc_free(internal);
561 }
562
563 static void command_file(const char *data, SILC_SERVER_REC *server,
564                          WI_ITEM_REC *item)
565 {
566   SilcClientConnection conn;
567   SilcClientEntry *entrys, client_entry;
568   SilcClientFileError ret;
569   uint32 entry_count;
570   char *nickname = NULL, *tmp;
571   unsigned char **argv;
572   uint32 argc;
573   uint32 *argv_lens, *argv_types;
574   int type = 0;
575   FtpSession ftp;
576   char *local_ip = NULL;
577   uint32 local_port = 0;
578
579   if (!server || !IS_SILC_SERVER(server) || !server->connected)
580     cmd_return_error(CMDERR_NOT_CONNECTED);
581
582   conn = server->conn;
583
584   /* Now parse all arguments */
585   tmp = g_strconcat("FILE", " ", data, NULL);
586   silc_parse_command_line(tmp, &argv, &argv_lens, &argv_types, &argc, 6);
587   g_free(tmp);
588
589   if (argc == 1)
590     type = 4;
591
592   if (argc >= 2) {
593     if (!strcasecmp(argv[1], "send"))
594       type = 1;
595     if (!strcasecmp(argv[1], "receive"))
596       type = 2;
597     if (!strcasecmp(argv[1], "close"))
598       type = 3;
599   }
600   
601   if (type == 0)
602     cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
603
604   switch (type) {
605   case 1:
606     if (argc < 4)
607       cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
608
609     /* Parse the typed nickname. */
610     if (!silc_parse_userfqdn(argv[3], &nickname, NULL)) {
611       printformat_module("fe-common/silc", server, NULL,
612                          MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[3]);
613       goto out;
614     }
615     
616     /* Find client entry */
617     entrys = silc_client_get_clients_local(silc_client, conn, nickname,
618                                            argv[3], &entry_count);
619     if (!entrys) {
620       FileGetClients inter = silc_calloc(1, sizeof(*inter));
621       inter->server = server;
622       inter->data = strdup(data);
623       inter->nick = strdup(nickname);
624       inter->item = item;
625       silc_client_get_clients(silc_client, conn, nickname, argv[3],
626                               silc_client_command_file_get_clients, inter);
627       goto out;
628     }
629     client_entry = entrys[0];
630     silc_free(entrys);
631
632     if (argc >= 5)
633       local_ip = argv[4];
634     if (argc >= 6)
635       local_port = atoi(argv[5]);
636
637     ftp = silc_calloc(1, sizeof(*ftp));
638     ftp->session_id = 
639       silc_client_file_send(silc_client, conn, silc_client_file_monitor, 
640                             server, local_ip, local_port, 
641                             client_entry, argv[2]);
642
643     printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
644                        SILCTXT_FILE_SEND, client_entry->nickname,
645                        argv[2]);
646
647     ftp->client_entry = client_entry;
648     ftp->filepath = strdup(argv[2]);
649     ftp->conn = conn;
650     ftp->send = TRUE;
651     silc_dlist_add(server->ftp_sessions, ftp);
652     server->current_session = ftp;
653
654     break;
655
656   case 2:
657     /* Parse the typed nickname. */
658     if (argc >= 3) {
659       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
660         printformat_module("fe-common/silc", server, NULL,
661                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
662         goto out;
663       }
664     
665       /* Find client entry */
666       entrys = silc_client_get_clients_local(silc_client, conn, nickname,
667                                              argv[2], &entry_count);
668       if (!entrys) {
669         FileGetClients inter = silc_calloc(1, sizeof(*inter));
670         inter->server = server;
671         inter->data = strdup(data);
672         inter->nick = strdup(nickname);
673         inter->item = item;
674         silc_client_get_clients(silc_client, conn, nickname, argv[2],
675                                 silc_client_command_file_get_clients, inter);
676         goto out;
677       }
678       client_entry = entrys[0];
679       silc_free(entrys);
680     } else {
681       if (!server->current_session) {
682         printformat_module("fe-common/silc", server, NULL,
683                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
684         goto out;
685       }
686
687       ret = silc_client_file_receive(silc_client, conn, 
688                                      silc_client_file_monitor, server,
689                                      server->current_session->session_id);
690       if (ret != SILC_CLIENT_FILE_OK) {
691         if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
692           printformat_module("fe-common/silc", server, NULL,
693                              MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
694                              server->current_session->client_entry->nickname);
695         else
696           printformat_module("fe-common/silc", server, NULL,
697                              MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
698                              server->current_session->client_entry->nickname);
699       }
700
701       goto out;
702     }
703
704     silc_dlist_start(server->ftp_sessions);
705     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
706       if (ftp->client_entry == client_entry && !ftp->filepath) {
707         ret = silc_client_file_receive(silc_client, conn, 
708                                        silc_client_file_monitor, server,
709                                        ftp->session_id);
710         if (ret != SILC_CLIENT_FILE_OK) {
711           if (ret == SILC_CLIENT_FILE_ALREADY_STARTED)
712             printformat_module("fe-common/silc", server, NULL,
713                                MSGLEVEL_CRAP, SILCTXT_FILE_ALREADY_STARTED,
714                                client_entry->nickname);
715           else
716             printformat_module("fe-common/silc", server, NULL,
717                                MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
718                                client_entry->nickname);
719         }
720         break;
721       }
722     }
723
724     if (ftp == SILC_LIST_END) {
725       printformat_module("fe-common/silc", server, NULL,
726                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
727                          client_entry->nickname);
728       goto out;
729     }
730     break;
731
732   case 3:
733     /* Parse the typed nickname. */
734     if (argc >= 3) {
735       if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
736         printformat_module("fe-common/silc", server, NULL,
737                            MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
738         goto out;
739       }
740     
741       /* Find client entry */
742       entrys = silc_client_get_clients_local(silc_client, conn, nickname,
743                                              argv[2], &entry_count);
744       if (!entrys) {
745         FileGetClients inter = silc_calloc(1, sizeof(*inter));
746         inter->server = server;
747         inter->data = strdup(data);
748         inter->nick = strdup(nickname);
749         inter->item = item;
750         silc_client_get_clients(silc_client, conn, nickname, argv[2],
751                                 silc_client_command_file_get_clients, inter);
752         goto out;
753       }
754       client_entry = entrys[0];
755       silc_free(entrys);
756     } else {
757       if (!server->current_session) {
758         printformat_module("fe-common/silc", server, NULL,
759                            MSGLEVEL_CRAP, SILCTXT_FILE_NA);
760         goto out;
761       }
762  
763       silc_client_file_close(silc_client, conn, 
764                              server->current_session->session_id);
765       printformat_module("fe-common/silc", server, NULL,
766                          MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
767                          server->current_session->client_entry->nickname,
768                          server->current_session->filepath ?
769                          server->current_session->filepath : "[N/A]");
770       silc_dlist_del(server->ftp_sessions, server->current_session);
771       silc_free(server->current_session->filepath);
772       silc_free(server->current_session);
773       server->current_session = NULL;
774       goto out;
775     }
776
777     silc_dlist_start(server->ftp_sessions);
778     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
779       if (ftp->client_entry == client_entry) {
780         silc_client_file_close(silc_client, conn, ftp->session_id);
781         printformat_module("fe-common/silc", server, NULL,
782                            MSGLEVEL_CRAP, SILCTXT_FILE_CLOSED,
783                            client_entry->nickname,
784                            ftp->filepath ? ftp->filepath : "[N/A]");
785         if (ftp == server->current_session)
786           server->current_session = NULL;
787         silc_dlist_del(server->ftp_sessions, ftp);
788         silc_free(ftp->filepath);
789         silc_free(ftp);
790         break;
791       }
792     }
793
794     if (ftp == SILC_LIST_END) {
795       printformat_module("fe-common/silc", server, NULL,
796                          MSGLEVEL_CRAP, SILCTXT_FILE_CLIENT_NA,
797                          client_entry->nickname);
798       goto out;
799     }
800     break;
801
802   case 4:
803
804     if (!silc_dlist_count(server->ftp_sessions)) {
805       printformat_module("fe-common/silc", server, NULL,
806                          MSGLEVEL_CRAP, SILCTXT_FILE_NA);
807       goto out;
808     }
809
810     printformat_module("fe-common/silc", server, NULL,
811                        MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_HEADER);
812
813     silc_dlist_start(server->ftp_sessions);
814     while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
815       printformat_module("fe-common/silc", server, NULL,
816                          MSGLEVEL_CRAP, SILCTXT_FILE_SHOW_LINE,
817                          ftp->client_entry->nickname, 
818                          ftp->send ? "send" : "receive",
819                          (uint32)(ftp->offset + 1023) / 1024,
820                          (uint32)(ftp->filesize + 1023) / 1024,
821                          ftp->percent, ftp->kps,
822                          ftp->filepath ? ftp->filepath : "[N/A]");
823     }
824
825     break;
826
827   default:
828     break;
829   }
830
831  out:
832   silc_free(nickname);
833 }
834
835 void silc_server_init(void)
836 {
837   silc_servers_reconnect_init();
838
839   signal_add_first("server connected", (SIGNAL_FUNC) sig_connected);
840   signal_add("server disconnected", (SIGNAL_FUNC) sig_disconnected);
841   signal_add("send text", (SIGNAL_FUNC) event_text);
842   command_bind("whois", MODULE_NAME, (SIGNAL_FUNC) command_self);
843   command_bind("whowas", MODULE_NAME, (SIGNAL_FUNC) command_self);
844   command_bind("nick", MODULE_NAME, (SIGNAL_FUNC) command_self);
845   command_bind("topic", MODULE_NAME, (SIGNAL_FUNC) command_self);
846   command_bind("cmode", MODULE_NAME, (SIGNAL_FUNC) command_self);
847   command_bind("cumode", MODULE_NAME, (SIGNAL_FUNC) command_self);
848   command_bind("users", MODULE_NAME, (SIGNAL_FUNC) command_self);
849   command_bind("list", MODULE_NAME, (SIGNAL_FUNC) command_self);
850   command_bind("ban", MODULE_NAME, (SIGNAL_FUNC) command_self);
851   command_bind("oper", MODULE_NAME, (SIGNAL_FUNC) command_self);
852   command_bind("silcoper", MODULE_NAME, (SIGNAL_FUNC) command_self);
853   command_bind("umode", MODULE_NAME, (SIGNAL_FUNC) command_self);
854   command_bind("invite", MODULE_NAME, (SIGNAL_FUNC) command_self);
855   command_bind("kill", MODULE_NAME, (SIGNAL_FUNC) command_self);
856   command_bind("kick", MODULE_NAME, (SIGNAL_FUNC) command_self);
857   command_bind("info", MODULE_NAME, (SIGNAL_FUNC) command_self);
858   command_bind("ping", MODULE_NAME, (SIGNAL_FUNC) command_self);
859   command_bind("motd", MODULE_NAME, (SIGNAL_FUNC) command_self);
860   command_bind("close", MODULE_NAME, (SIGNAL_FUNC) command_self);
861   command_bind("shutdown", MODULE_NAME, (SIGNAL_FUNC) command_self);
862   command_bind("getkey", MODULE_NAME, (SIGNAL_FUNC) command_self);
863   command_bind("sconnect", MODULE_NAME, (SIGNAL_FUNC) command_sconnect);
864   command_bind("file", MODULE_NAME, (SIGNAL_FUNC) command_file);
865
866   command_set_options("connect", "+silcnet");
867 }
868
869 void silc_server_deinit(void)
870 {
871   silc_servers_reconnect_deinit();
872
873   signal_remove("server connected", (SIGNAL_FUNC) sig_connected);
874   signal_remove("server disconnected", (SIGNAL_FUNC) sig_disconnected);
875   signal_remove("send text", (SIGNAL_FUNC) event_text);
876   command_unbind("whois", (SIGNAL_FUNC) command_self);
877   command_unbind("whowas", (SIGNAL_FUNC) command_self);
878   command_unbind("nick", (SIGNAL_FUNC) command_self);
879   command_unbind("topic", (SIGNAL_FUNC) command_self);
880   command_unbind("cmode", (SIGNAL_FUNC) command_self);
881   command_unbind("cumode", (SIGNAL_FUNC) command_self);
882   command_unbind("users", (SIGNAL_FUNC) command_self);
883   command_unbind("list", (SIGNAL_FUNC) command_self);
884   command_unbind("oper", (SIGNAL_FUNC) command_self);
885   command_unbind("silcoper", (SIGNAL_FUNC) command_self);
886   command_unbind("umode", (SIGNAL_FUNC) command_self);
887   command_unbind("invite", (SIGNAL_FUNC) command_self);
888   command_unbind("kill", (SIGNAL_FUNC) command_self);
889   command_unbind("kick", (SIGNAL_FUNC) command_self);
890   command_unbind("info", (SIGNAL_FUNC) command_self);
891   command_unbind("ping", (SIGNAL_FUNC) command_self);
892   command_unbind("motd", (SIGNAL_FUNC) command_self);
893   command_unbind("ban", (SIGNAL_FUNC) command_self);
894   command_unbind("close", (SIGNAL_FUNC) command_self);
895   command_unbind("shutdown", (SIGNAL_FUNC) command_self);
896   command_unbind("getkey", (SIGNAL_FUNC) command_self);
897   command_unbind("sconnect", (SIGNAL_FUNC) command_sconnect);
898   command_unbind("file", (SIGNAL_FUNC) command_file);
899 }
900
901 void silc_server_free_ftp(SILC_SERVER_REC *server,
902                           SilcClientEntry client_entry)
903 {
904   FtpSession ftp;
905
906   silc_dlist_start(server->ftp_sessions);
907   while ((ftp = silc_dlist_get(server->ftp_sessions)) != SILC_LIST_END) {
908     if (ftp->client_entry == client_entry) {
909       silc_dlist_del(server->ftp_sessions, ftp);
910       silc_free(ftp->filepath);
911       silc_free(ftp);
912     }
913   }
914 }