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 "window-item-def.h"
  41
  42 #include "fe-common/core/printtext.h"
  43 #include "fe-common/silc/module-formats.h"
  44
  45 void silc_servers_reconnect_init(void);
  46 void silc_servers_reconnect_deinit(void);
  47
  48 static void silc_send_channel(SILC_SERVER_REC *server,
  49                               char *channel, char *msg)
  50 {
  51   SILC_CHANNEL_REC *rec;
  52
  53   rec = silc_channel_find(server, channel);
  54   if (rec == NULL || rec->entry == NULL)
  55     return;
  56
  57   silc_client_send_channel_message(silc_client, server->conn, rec->entry,
  58                                    NULL, 0, msg, strlen(msg), TRUE);
  59 }
  60
  61 typedef struct {
  62   char *nick;
  63   char *msg;
  64   SILC_SERVER_REC *server;
  65 } PRIVMSG_REC;
  66
  67 /* Callback function that sends the private message if the client was
  68    resolved from the server. */
  69
  70 static void silc_send_msg_clients(SilcClient client,
  71                                   SilcClientConnection conn,
  72                                   SilcClientEntry *clients,
  73                                   uint32 clients_count,
  74                                   void *context)
  75 {
  76   PRIVMSG_REC *rec = context;
  77   SILC_SERVER_REC *server = rec->server;
  78   SilcClientEntry target;
  79   char *nickname = NULL;
  80
  81   if (!clients_count) {
  82     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Unknown nick: %s", rec->nick);
  83   } else {
  84     if (clients_count > 1) {
  85       silc_parse_userfqdn(rec->nick, &nickname, NULL);
  86
  87       /* Find the correct one. The rec->nick might be a formatted nick
  88          so this will find the correct one. */
  89       clients = silc_client_get_clients_local(silc_client, server->conn,
  90                                               nickname, rec->nick,
  91                                               &clients_count);
  92       if (!clients) {
  93         printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Unknown nick: %s",
  94                   rec->nick);
  95         silc_free(nickname);
  96         goto out;
  97       }
  98       silc_free(nickname);
  99     }
 100
 101     target = clients[0];
 102
 103     /* Send the private message */
 104     silc_client_send_private_message(client, conn, target, 0,
 105                                      rec->msg, strlen(rec->msg),
 106                                      TRUE);
 107   }
 108
 109  out:
 110   g_free(rec->nick);
 111   g_free(rec->msg);
 112   g_free(rec);
 113 }
 114
 115 static void silc_send_msg(SILC_SERVER_REC *server, char *nick, char *msg)
 116 {
 117   PRIVMSG_REC *rec;
 118   SilcClientEntry *clients;
 119   uint32 clients_count;
 120   char *nickname = NULL;
 121
 122   if (!silc_parse_userfqdn(nick, &nickname, NULL)) {
 123     printformat_module("fe-common/silc", server, NULL,
 124                        MSGLEVEL_CRAP, SILCTXT_BAD_NICK, nick);
 125     return;
 126   }
 127
 128   /* Find client entry */
 129   clients = silc_client_get_clients_local(silc_client, server->conn,
 130                                           nickname, nick, &clients_count);
 131   silc_free(nickname);
 132
 133   if (!clients) {
 134     rec = g_new0(PRIVMSG_REC, 1);
 135     rec->nick = g_strdup(nick);
 136     rec->msg = g_strdup(msg);
 137     rec->server = server;
 138
 139     /* Could not find client with that nick, resolve it from server. */
 140     silc_client_get_clients(silc_client, server->conn,
 141                             nickname, NULL, silc_send_msg_clients, rec);
 142     return;
 143   }
 144
 145   /* Send the private message directly */
 146   silc_client_send_private_message(silc_client, server->conn,
 147                                    clients[0], 0, msg, strlen(msg), TRUE);
 148 }
 149
 150 static int isnickflag_func(char flag)
 151 {
 152   return flag == '@' || flag == '+';
 153 }
 154
 155 static int ischannel_func(const char *data)
 156 {
 157   return *data == '#';
 158 }
 159
 160 const char *get_nick_flags(void)
 161 {
 162   return "@\0\0";
 163 }
 164
 165 static void send_message(SILC_SERVER_REC *server, char *target, char *msg)
 166 {
 167   g_return_if_fail(server != NULL);
 168   g_return_if_fail(target != NULL);
 169   g_return_if_fail(msg != NULL);
 170
 171   if (*target == '#')
 172     silc_send_channel(server, target, msg);
 173   else
 174     silc_send_msg(server, target, msg);
 175 }
 176
 177 static void sig_connected(SILC_SERVER_REC *server)
 178 {
 179   SilcClientConnection conn;
 180   int fd;
 181
 182   if (!IS_SILC_SERVER(server))
 183     return;
 184
 185   conn = silc_client_add_connection(silc_client,
 186                                     server->connrec->address,
 187                                     server->connrec->port,
 188                                     server);
 189   server->conn = conn;
 190
 191   fd = g_io_channel_unix_get_fd(net_sendbuffer_handle(server->handle));
 192   if (!silc_client_start_key_exchange(silc_client, conn, fd)) {
 193     /* some internal error occured */
 194     server_disconnect(SERVER(server));
 195     signal_stop();
 196     return;
 197   }
 198
 199   server->isnickflag = isnickflag_func;
 200   server->ischannel = ischannel_func;
 201   server->get_nick_flags = get_nick_flags;
 202   server->send_message = (void *) send_message;
 203 }
 204
 205 static void sig_disconnected(SILC_SERVER_REC *server)
 206 {
 207   if (!IS_SILC_SERVER(server) || server->conn == NULL)
 208     return;
 209
 210   if (server->conn->sock != NULL) {
 211     silc_client_close_connection(silc_client, NULL, server->conn);
 212
 213     /* SILC closes the handle */
 214     g_io_channel_unref(net_sendbuffer_handle(server->handle));
 215     net_sendbuffer_destroy(server->handle, FALSE);
 216     server->handle = NULL;
 217   }
 218 }
 219
 220 SILC_SERVER_REC *silc_server_connect(SILC_SERVER_CONNECT_REC *conn)
 221 {
 222   SILC_SERVER_REC *server;
 223
 224   g_return_val_if_fail(IS_SILC_SERVER_CONNECT(conn), NULL);
 225   if (conn->address == NULL || *conn->address == '\0')
 226     return NULL;
 227   if (conn->nick == NULL || *conn->nick == '\0') {
 228     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR,
 229               "Cannot connect: nickname is not set");
 230     return NULL;
 231   }
 232
 233   server = g_new0(SILC_SERVER_REC, 1);
 234   server->chat_type = SILC_PROTOCOL;
 235   server->connrec = conn;
 236   if (server->connrec->port <= 0)
 237     server->connrec->port = 706;
 238
 239   if (!server_start_connect((SERVER_REC *) server)) {
 240     server_connect_free(SERVER_CONNECT(conn));
 241     g_free(server);
 242     return NULL;
 243   }
 244
 245   return server;
 246 }
 247
 248 /* Return a string of all channels in server in server->channels_join()
 249    format */
 250
 251 char *silc_server_get_channels(SILC_SERVER_REC *server)
 252 {
 253   GSList *tmp;
 254   GString *chans;
 255   char *ret;
 256
 257   g_return_val_if_fail(server != NULL, FALSE);
 258
 259   chans = g_string_new(NULL);
 260   for (tmp = server->channels; tmp != NULL; tmp = tmp->next) {
 261     CHANNEL_REC *channel = tmp->data;
 262
 263     g_string_sprintfa(chans, "%s,", channel->name);
 264   }
 265
 266   if (chans->len > 0)
 267     g_string_truncate(chans, chans->len-1);
 268
 269   ret = chans->str;
 270   g_string_free(chans, FALSE);
 271
 272   return ret;
 273 }
 274
 275 /* Syntaxes of all SILC commands for HELP files (the help file generation
 276    will snoop these from here). */
 277
 278 /* SYNTAX: BAN <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 279 /* SYNTAX: CMODE <channel> +|-<modes> [{ <arguments>}] */
 280 /* SYNTAX: CUMODE <channel> +|-<modes> <nickname>[@<hostname>] [-pubkey|<passwd>] */
 281 /* SYNTAX: GETKEY <nickname or server name> */
 282 /* SYNTAX: INVITE <channel> [<nickname>[@hostname>] */
 283 /* SYNTAX: INVITE <channel> [+|-[<nickname>[@<server>[!<username>[@hostname>]]]]] */
 284 /* SYNTAX: KEY MSG <nickname> set|unset|list|agreement|negotiate [<arguments>] */
 285 /* SYNTAX: KEY CHANNEL <channel> set|unset|list|agreement|negotiate [<arguments>] */
 286 /* SYNTAX: KICK <channel> <nickname>[@<hostname>] [<comment>] */
 287 /* SYNTAX: KILL <channel> <nickname>[@<hostname>] [<comment>] */
 288 /* SYNTAX: OPER <username> [-pubkey] */
 289 /* SYNTAX: SILCOPER <username> [-pubkey] */
 290 /* SYNTAX: TOPIC <channel> [<topic>] */
 291 /* SYNTAX: UMODE +|-<modes> */
 292 /* SYNTAX: WHOIS <nickname>[@<hostname>] [<count>] */
 293 /* SYNTAX: WHOWAS <nickname>[@<hostname>] [<count>] */
 294 /* SYNTAX: CLOSE <server> [<port>] */
 295 /* SYNTAX: SHUTDOWN */
 296 /* SYNTAX: MOTD [<server>] */
 297 /* SYNTAX: LIST [<channel>] */
 298 /* SYNTAX: ME <message> */
 299 /* SYNTAX: ACTION <channel> <message> */
 300 /* SYNTAX: AWAY [<message>] */
 301 /* SYNTAX: INFO [<server>] */
 302 /* SYNTAX: NICK <nickname> */
 303 /* SYNTAX: NOTICE <message> */
 304 /* SYNTAX: PART [<channel>] */
 305 /* SYNTAX: PING */
 306 /* SYNTAX: SCONNECT <server> [<port>] */
 307 /* SYNTAX: USERS <channel> */
 308
 309 void silc_command_exec(SILC_SERVER_REC *server,
 310                        const char *command, const char *args)
 311 {
 312   uint32 argc = 0;
 313   unsigned char **argv;
 314   uint32 *argv_lens, *argv_types;
 315   char *data, *tmpcmd;
 316   SilcClientCommand *cmd;
 317   SilcClientCommandContext ctx;
 318
 319   g_return_if_fail(server != NULL);
 320
 321   tmpcmd = g_strdup(command);
 322   g_strup(tmpcmd);
 323   cmd = silc_client_command_find(tmpcmd);
 324   g_free(tmpcmd);
 325   if (cmd == NULL)
 326     return;
 327
 328   /* Now parse all arguments */
 329   data = g_strconcat(command, " ", args, NULL);
 330   silc_parse_command_line(data, &argv, &argv_lens,
 331                           &argv_types, &argc, cmd->max_args);
 332   g_free(data);
 333
 334   /* Allocate command context. This and its internals must be free'd
 335      by the command routine receiving it. */
 336   ctx = silc_client_command_alloc();
 337   ctx->client = silc_client;
 338   ctx->conn = server->conn;
 339   ctx->command = cmd;
 340   ctx->argc = argc;
 341   ctx->argv = argv;
 342   ctx->argv_lens = argv_lens;
 343   ctx->argv_types = argv_types;
 344
 345   /* Execute command */
 346   (*cmd->cb)(ctx, NULL);
 347 }
 348
 349 /* Generic command function to call any SILC command directly. */
 350
 351 static void command_self(const char *data, SILC_SERVER_REC *server,
 352                          WI_ITEM_REC *item)
 353 {
 354   if (!IS_SILC_SERVER(server) || !server->connected) {
 355     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 356     return;
 357   }
 358
 359   if (IS_SILC_CHANNEL(item)) {
 360     SILC_CHANNEL_REC *chanrec;
 361     chanrec = silc_channel_find(server, item->name);
 362     if (chanrec)
 363       server->conn->current_channel = chanrec->entry;
 364   }
 365
 366   silc_command_exec(server, current_command, data);
 367   signal_stop();
 368 }
 369
 370 /* SCONNECT command.  Calls actually SILC's CONNECT command since Irssi
 371    has CONNECT command for other purposes. */
 372
 373 static void command_sconnect(const char *data, SILC_SERVER_REC *server)
 374 {
 375   if (!IS_SILC_SERVER(server) || !server->connected) {
 376     printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "Not connected to server");
 377     return;
 378   }
 379
 380   silc_command_exec(server, "CONNECT", data);
 381   signal_stop();
 382 }
 383
 384 static void event_text(const char *line, SILC_SERVER_REC *server,
 385                        WI_ITEM_REC *item)
 386 {
 387   char *str;
 388
 389   g_return_if_fail(line != NULL);
 390
 391   if (!IS_SILC_ITEM(item))
 392     return;
 393
 394   str = g_strdup_printf("%s %s", item->name, line);
 395   signal_emit("command msg", 3, str, server, item);
 396   g_free(str);
 397
 398   signal_stop();
 399 }
 400
 401 void silc_server_init(void)
 402 {
 403   silc_servers_reconnect_init();
 404
 405   signal_add_first("server connected", (SIGNAL_FUNC) sig_connected);
 406   signal_add("server disconnected", (SIGNAL_FUNC) sig_disconnected);
 407   signal_add("send text", (SIGNAL_FUNC) event_text);
 408   command_bind("whois", MODULE_NAME, (SIGNAL_FUNC) command_self);
 409   command_bind("whowas", MODULE_NAME, (SIGNAL_FUNC) command_self);
 410   command_bind("nick", MODULE_NAME, (SIGNAL_FUNC) command_self);
 411   command_bind("topic", MODULE_NAME, (SIGNAL_FUNC) command_self);
 412   command_bind("cmode", MODULE_NAME, (SIGNAL_FUNC) command_self);
 413   command_bind("cumode", MODULE_NAME, (SIGNAL_FUNC) command_self);
 414   command_bind("users", MODULE_NAME, (SIGNAL_FUNC) command_self);
 415   command_bind("list", MODULE_NAME, (SIGNAL_FUNC) command_self);
 416   command_bind("ban", MODULE_NAME, (SIGNAL_FUNC) command_self);
 417   command_bind("oper", MODULE_NAME, (SIGNAL_FUNC) command_self);
 418   command_bind("silcoper", MODULE_NAME, (SIGNAL_FUNC) command_self);
 419   command_bind("umode", MODULE_NAME, (SIGNAL_FUNC) command_self);
 420   command_bind("invite", MODULE_NAME, (SIGNAL_FUNC) command_self);
 421   command_bind("kill", MODULE_NAME, (SIGNAL_FUNC) command_self);
 422   command_bind("kick", MODULE_NAME, (SIGNAL_FUNC) command_self);
 423   command_bind("info", MODULE_NAME, (SIGNAL_FUNC) command_self);
 424   command_bind("ping", MODULE_NAME, (SIGNAL_FUNC) command_self);
 425   command_bind("motd", MODULE_NAME, (SIGNAL_FUNC) command_self);
 426   command_bind("close", MODULE_NAME, (SIGNAL_FUNC) command_self);
 427   command_bind("shutdown", MODULE_NAME, (SIGNAL_FUNC) command_self);
 428   command_bind("getkey", MODULE_NAME, (SIGNAL_FUNC) command_self);
 429   command_bind("sconnect", MODULE_NAME, (SIGNAL_FUNC) command_sconnect);
 430
 431   command_set_options("connect", "+silcnet");
 432 }
 433
 434 void silc_server_deinit(void)
 435 {
 436   silc_servers_reconnect_deinit();
 437
 438   signal_remove("server connected", (SIGNAL_FUNC) sig_connected);
 439   signal_remove("server disconnected", (SIGNAL_FUNC) sig_disconnected);
 440   signal_remove("send text", (SIGNAL_FUNC) event_text);
 441   command_unbind("whois", (SIGNAL_FUNC) command_self);
 442   command_unbind("whowas", (SIGNAL_FUNC) command_self);
 443   command_unbind("nick", (SIGNAL_FUNC) command_self);
 444   command_unbind("topic", (SIGNAL_FUNC) command_self);
 445   command_unbind("cmode", (SIGNAL_FUNC) command_self);
 446   command_unbind("cumode", (SIGNAL_FUNC) command_self);
 447   command_unbind("users", (SIGNAL_FUNC) command_self);
 448   command_unbind("list", (SIGNAL_FUNC) command_self);
 449   command_unbind("oper", (SIGNAL_FUNC) command_self);
 450   command_unbind("silcoper", (SIGNAL_FUNC) command_self);
 451   command_unbind("umode", (SIGNAL_FUNC) command_self);
 452   command_unbind("invite", (SIGNAL_FUNC) command_self);
 453   command_unbind("kill", (SIGNAL_FUNC) command_self);
 454   command_unbind("kick", (SIGNAL_FUNC) command_self);
 455   command_unbind("info", (SIGNAL_FUNC) command_self);
 456   command_unbind("ping", (SIGNAL_FUNC) command_self);
 457   command_unbind("motd", (SIGNAL_FUNC) command_self);
 458   command_unbind("ban", (SIGNAL_FUNC) command_self);
 459   command_unbind("close", (SIGNAL_FUNC) command_self);
 460   command_unbind("shutdown", (SIGNAL_FUNC) command_self);
 461   command_unbind("getkey", (SIGNAL_FUNC) command_self);
 462   command_unbind("sconnect", (SIGNAL_FUNC) command_sconnect);
 463 }