updates.
[silc.git] / apps / irssi / src / silc / core / silc-channels.c
index 3f99c37dce6e13d22871b5a22a137a5dcfb986b7..459dedd6a5d1d332b8c95d61f37703b026652749 100644 (file)
@@ -41,6 +41,7 @@
 #include "window-item-def.h"
 
 #include "fe-common/core/printtext.h"
+#include "fe-common/silc/module-formats.h"
 
 SILC_CHANNEL_REC *silc_channel_create(SILC_SERVER_REC *server,
                                      const char *name, int automatic)
@@ -75,15 +76,23 @@ static void silc_channels_join(SILC_SERVER_REC *server,
                               const char *channels, int automatic)
 {
   char **list, **tmp, *channel;
+  SILC_CHANNEL_REC *chanrec;
 
   list = g_strsplit(channels, ",", -1);
   for (tmp = list; *tmp != NULL; tmp++) {
     channel = **tmp == '#' ? g_strdup(*tmp) :
       g_strconcat("#", *tmp, NULL);
-    silc_channel_create(server, channel, FALSE);
+
+    chanrec = silc_channel_find(server, channel);
+    if (chanrec) {
+      g_free(channel);
+      continue;
+    }
+
     silc_command_exec(server, "JOIN", channel);
     g_free(channel);
   }
+
   g_strfreev(list);
 }
 
@@ -98,7 +107,7 @@ static void sig_connected(SILC_SERVER_REC *server)
 
 static void sig_server_quit(SILC_SERVER_REC *server, const char *msg)
 {
-  if (IS_SILC_SERVER(server))
+  if (IS_SILC_SERVER(server) && server->conn && server->conn->sock)
     silc_command_exec(server, "QUIT", msg);
 }
 
@@ -243,12 +252,14 @@ static void event_invite(SILC_SERVER_REC *server, va_list va)
 {
   SilcClientEntry client;
   SilcChannelEntry channel;
+  char *channel_name;
   
-  client = va_arg(va, SilcClientEntry);
   channel = va_arg(va, SilcChannelEntry);
+  channel_name = va_arg(va, char *);
+  client = va_arg(va, SilcClientEntry);
 
-  signal_emit("message invite", 4, server, channel->channel_name,
-             client->nickname, client->username);
+  signal_emit("message invite", 4, server, channel ? channel->channel_name :
+             channel_name, client->nickname, client->username);
 }
 
 /*
@@ -277,15 +288,24 @@ static void event_nick(SILC_SERVER_REC *server, va_list va)
 static void event_cmode(SILC_SERVER_REC *server, va_list va)
 {
   SILC_CHANNEL_REC *chanrec;
+  void *entry;
   SilcClientEntry client;
+  SilcServerEntry server_entry;
   SilcChannelEntry channel;
   char *mode;
   uint32 modei;
+  SilcIdType idtype;
 
-  client = va_arg(va, SilcClientEntry);
+  idtype = va_arg(va, int);
+  entry = va_arg(va, void *);
   modei = va_arg(va, uint32);
+  (void)va_arg(va, char *);
+  (void)va_arg(va, char *);
   channel = va_arg(va, SilcChannelEntry);
-  mode = silc_client_chmode(modei, channel);
+
+  mode = silc_client_chmode(modei, 
+                           channel->channel_key->cipher->name,
+                           channel->hmac->hmac->name);
   
   chanrec = silc_channel_find_entry(server, channel);
   if (chanrec != NULL) {
@@ -294,9 +314,19 @@ static void event_cmode(SILC_SERVER_REC *server, va_list va)
     signal_emit("channel mode changed", 1, chanrec);
   }
   
-  printtext(server, channel->channel_name, MSGLEVEL_MODES,
-           "cmode/%s [%s] by %s", channel->channel_name, mode,
-           client->nickname);
+  if (idtype == SILC_ID_CLIENT) {
+    client = (SilcClientEntry)entry;
+    printformat_module("fe-common/silc", server, channel->channel_name,
+                      MSGLEVEL_MODES, SILCTXT_CHANNEL_CMODE,
+                      channel->channel_name, mode ? mode : "removed all",
+                      client->nickname);
+  } else {
+    server_entry = (SilcServerEntry)entry;
+    printformat_module("fe-common/silc", server, channel->channel_name,
+                      MSGLEVEL_MODES, SILCTXT_CHANNEL_CMODE,
+                      channel->channel_name, mode ? mode : "removed all",
+                      server_entry->server_name);
+  }
   
   g_free(mode);
 }
@@ -327,18 +357,27 @@ static void event_cumode(SILC_SERVER_REC *server, va_list va)
       chanrec->chanop =
        (mode & SILC_CHANNEL_UMODE_CHANOP) != 0;
     }
-    
+
     nick = silc_nicklist_find(chanrec, destclient);
     if (nick != NULL) {
       nick->op = (mode & SILC_CHANNEL_UMODE_CHANOP) != 0;
+      nick->founder = (mode & SILC_CHANNEL_UMODE_CHANFO) != 0;
       signal_emit("nick mode changed", 2, chanrec, nick);
     }
   }
   
-  printtext(server, channel->channel_name, MSGLEVEL_MODES,
-           "cumode/%s/%s [%s] by %s", destclient->nickname, 
-           channel->channel_name, modestr, client->nickname);
-  
+  printformat_module("fe-common/silc", server, channel->channel_name,
+                    MSGLEVEL_MODES, SILCTXT_CHANNEL_CUMODE,
+                    channel->channel_name, destclient->nickname, 
+                    modestr ? modestr : "removed all",
+                    client->nickname);
+
+  if (mode & SILC_CHANNEL_UMODE_CHANFO)
+    printformat_module("fe-common/silc", 
+                      server, channel->channel_name, MSGLEVEL_CRAP,
+                      SILCTXT_CHANNEL_FOUNDER,
+                      channel->channel_name, destclient->nickname);
+
   g_free(modestr);
 }
 
@@ -360,7 +399,7 @@ static void event_motd(SILC_SERVER_REC *server, va_list va)
 
 static void event_channel_change(SILC_SERVER_REC *server, va_list va)
 {
-
+  /* Nothing interesting to do */
 }
 
 /*
@@ -369,7 +408,18 @@ static void event_channel_change(SILC_SERVER_REC *server, va_list va)
 
 static void event_server_signoff(SILC_SERVER_REC *server, va_list va)
 {
-
+  SilcClientEntry *clients;
+  uint32 clients_count;
+  int i;
+  
+  (void)va_arg(va, void *);
+  clients = va_arg(va, SilcClientEntry *);
+  clients_count = va_arg(va, uint32);
+  
+  for (i = 0; i < clients_count; i++)
+    signal_emit("message quit", 4, server, clients[i]->nickname,
+               clients[i]->username ? clients[i]->username : "", 
+               "server signoff");
 }
 
 /*
@@ -378,7 +428,38 @@ static void event_server_signoff(SILC_SERVER_REC *server, va_list va)
 
 static void event_kick(SILC_SERVER_REC *server, va_list va)
 {
+  SilcClientConnection conn = server->conn;
+  SilcClientEntry client_entry;
+  SilcChannelEntry channel_entry;
+  char *tmp;
+  SILC_CHANNEL_REC *chanrec;
+
+  client_entry = va_arg(va, SilcClientEntry);
+  tmp = va_arg(va, char *);
+  channel_entry = va_arg(va, SilcChannelEntry);
 
+  chanrec = silc_channel_find_entry(server, channel_entry);
+  
+  if (client_entry == conn->local_entry) {
+    printformat_module("fe-common/silc", server, channel_entry->channel_name,
+                      MSGLEVEL_CRAP, SILCTXT_CHANNEL_KICKED_YOU, 
+                      channel_entry->channel_name, tmp ? tmp : "");
+    if (chanrec) {
+      chanrec->kicked = TRUE;
+      channel_destroy((CHANNEL_REC *)chanrec);
+    }
+  } else {
+    printformat_module("fe-common/silc", server, channel_entry->channel_name,
+                      MSGLEVEL_CRAP, SILCTXT_CHANNEL_KICKED, 
+                      client_entry->nickname,
+                      channel_entry->channel_name, tmp ? tmp : "");
+
+    if (chanrec) {
+      SILC_NICK_REC *nickrec = silc_nicklist_find(chanrec, client_entry);
+      if (nickrec != NULL)
+       nicklist_remove(CHANNEL(chanrec), NICK(nickrec));
+    }
+  }
 }
 
 /*
@@ -387,16 +468,31 @@ static void event_kick(SILC_SERVER_REC *server, va_list va)
 
 static void event_kill(SILC_SERVER_REC *server, va_list va)
 {
+  SilcClientConnection conn = server->conn;
+  SilcClientEntry client_entry;
+  char *tmp;
 
-}
-
-/*
- * "event ban". Someone was banned or ban list was modified.
- */
-
-static void event_ban(SILC_SERVER_REC *server, va_list va)
-{
+  client_entry = va_arg(va, SilcClientEntry);
+  tmp = va_arg(va, char *);
+  
+  if (client_entry == conn->local_entry) {
+    printformat_module("fe-common/silc", server, NULL,
+                      MSGLEVEL_CRAP, SILCTXT_CHANNEL_KILLED_YOU, 
+                      tmp ? tmp : "");
+  } else {
+    GSList *nicks, *tmpn;
+    nicks = nicklist_get_same_unique(SERVER(server), client_entry);
+    for (tmpn = nicks; tmpn != NULL; tmpn = tmpn->next->next) {
+      CHANNEL_REC *channel = tmpn->data;
+      NICK_REC *nickrec = tmpn->next->data;
+      nicklist_remove(channel, nickrec);
+    }
 
+    printformat_module("fe-common/silc", server, NULL,
+                      MSGLEVEL_CRAP, SILCTXT_CHANNEL_KILLED, 
+                      client_entry->nickname,
+                      tmp ? tmp : "");
+  }
 }
 
 /* PART (LEAVE) command. */
@@ -409,7 +505,7 @@ static void command_part(const char *data, SILC_SERVER_REC *server,
   if (!IS_SILC_SERVER(server) || !server->connected)
     cmd_return_error(CMDERR_NOT_CONNECTED);
 
-  if (*data == '\0') {
+  if (!strcmp(data, "*") || *data == '\0') {
     if (!IS_SILC_CHANNEL(item))
       cmd_return_error(CMDERR_NOT_JOINED);
     data = item->name;
@@ -465,6 +561,58 @@ static void command_me(const char *data, SILC_SERVER_REC *server,
                                   SILC_MESSAGE_FLAG_ACTION, 
                                   argv[1], argv_lens[1], TRUE);
 
+  printformat_module("fe-common/silc", server, chanrec->entry->channel_name,
+                    MSGLEVEL_ACTIONS, SILCTXT_CHANNEL_OWNACTION, 
+                     server->conn->local_entry->nickname, argv[1]);
+
+  for (i = 0; i < argc; i++)
+    silc_free(argv[i]);
+  silc_free(argv_lens);
+  silc_free(argv_types);
+}
+
+/* ACTION local command. Same as ME but takes the channel as mandatory
+   argument. */
+
+static void command_action(const char *data, SILC_SERVER_REC *server,
+                          WI_ITEM_REC *item)
+{
+  SILC_CHANNEL_REC *chanrec;
+  char *tmpcmd = "ME", *tmp;
+  uint32 argc = 0;
+  unsigned char **argv;
+  uint32 *argv_lens, *argv_types;
+  int i;
+  if (!IS_SILC_SERVER(server) || !server->connected)
+    cmd_return_error(CMDERR_NOT_CONNECTED);
+
+  if (!IS_SILC_CHANNEL(item))
+    cmd_return_error(CMDERR_NOT_JOINED);
+
+  /* Now parse all arguments */
+  tmp = g_strconcat(tmpcmd, " ", data, NULL);
+  silc_parse_command_line(tmp, &argv, &argv_lens,
+                         &argv_types, &argc, 3);
+  g_free(tmp);
+
+  if (argc < 3)
+    cmd_return_error(CMDERR_NOT_ENOUGH_PARAMS);
+
+  chanrec = silc_channel_find(server, argv[1]);
+  if (chanrec == NULL) 
+    cmd_return_error(CMDERR_CHAN_NOT_FOUND);
+
+  /* Send the action message */
+  silc_client_send_channel_message(silc_client, server->conn, 
+                                  chanrec->entry, NULL,
+                                  SILC_MESSAGE_FLAG_ACTION, 
+                                  argv[2], argv_lens[2], TRUE);
+
+  printformat_module("fe-common/silc", server, chanrec->entry->channel_name,
+                    MSGLEVEL_ACTIONS, SILCTXT_CHANNEL_OWNACTION, 
+                     server->conn->local_entry->nickname, argv[2]);
+
   for (i = 0; i < argc; i++)
     silc_free(argv[i]);
   silc_free(argv_lens);
@@ -508,12 +656,524 @@ static void command_notice(const char *data, SILC_SERVER_REC *server,
                                   SILC_MESSAGE_FLAG_NOTICE, 
                                   argv[1], argv_lens[1], TRUE);
 
+  printformat_module("fe-common/silc", server, chanrec->entry->channel_name,
+                    MSGLEVEL_NOTICES, SILCTXT_CHANNEL_OWNNOTICE, 
+                     server->conn->local_entry->nickname, argv[1]);
+
   for (i = 0; i < argc; i++)
     silc_free(argv[i]);
   silc_free(argv_lens);
   silc_free(argv_types);
 }
 
+/* AWAY local command.  Sends UMODE command that sets the SILC_UMODE_GONE
+   flag. */
+
+static void command_away(const char *data, SILC_SERVER_REC *server,
+                        WI_ITEM_REC *item)
+{
+  bool set;
+
+  if (!IS_SILC_SERVER(server) || !server->connected)
+    cmd_return_error(CMDERR_NOT_CONNECTED);
+
+  if (*data == '\0') {
+    /* Remove any possible away message */
+    silc_client_set_away_message(silc_client, server->conn, NULL);
+    set = FALSE;
+
+    printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP, 
+                      SILCTXT_UNSET_AWAY);
+  } else {
+    /* Set the away message */
+    silc_client_set_away_message(silc_client, server->conn, (char *)data);
+    set = TRUE;
+
+    printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP, 
+                      SILCTXT_SET_AWAY, data);
+  }
+
+  signal_emit("away mode changed", 1, server);
+
+  silc_command_exec(server, "UMODE", set ? "+g" : "-g");
+}
+
+typedef struct {
+  int type;                    /* 1 = msg, 2 = channel */
+  bool responder;
+  SILC_SERVER_REC *server;
+} *KeyInternal;
+
+/* Key agreement callback that is called after the key agreement protocol
+   has been performed. This is called also if error occured during the
+   key agreement protocol. The `key' is the allocated key material and
+   the caller is responsible of freeing it. The `key' is NULL if error
+   has occured. The application can freely use the `key' to whatever
+   purpose it needs. See lib/silcske/silcske.h for the definition of
+   the SilcSKEKeyMaterial structure. */
+
+static void keyagr_completion(SilcClient client,
+                             SilcClientConnection conn,
+                             SilcClientEntry client_entry,
+                             SilcKeyAgreementStatus status,
+                             SilcSKEKeyMaterial *key,
+                             void *context)
+{
+  KeyInternal i = (KeyInternal)context;
+
+  switch(status) {
+  case SILC_KEY_AGREEMENT_OK:
+    printformat_module("fe-common/silc", i->server, NULL, MSGLEVEL_NOTICES,
+                      SILCTXT_KEY_AGREEMENT_OK, client_entry->nickname);
+
+    if (i->type == 1) {
+      /* Set the private key for this client */
+      silc_client_del_private_message_key(client, conn, client_entry);
+      silc_client_add_private_message_key_ske(client, conn, client_entry,
+                                             NULL, key, i->responder);
+      printformat_module("fe-common/silc", i->server, NULL, MSGLEVEL_NOTICES,
+                        SILCTXT_KEY_AGREEMENT_PRIVMSG, 
+                        client_entry->nickname);
+      silc_ske_free_key_material(key);
+    }
+    
+    break;
+    
+  case SILC_KEY_AGREEMENT_ERROR:
+    printformat_module("fe-common/silc", i->server, NULL, MSGLEVEL_NOTICES,
+                      SILCTXT_KEY_AGREEMENT_ERROR, client_entry->nickname);
+    break;
+    
+  case SILC_KEY_AGREEMENT_FAILURE:
+    printformat_module("fe-common/silc", i->server, NULL, MSGLEVEL_NOTICES,
+                      SILCTXT_KEY_AGREEMENT_FAILURE, client_entry->nickname);
+    break;
+    
+  case SILC_KEY_AGREEMENT_TIMEOUT:
+    printformat_module("fe-common/silc", i->server, NULL, MSGLEVEL_NOTICES,
+                      SILCTXT_KEY_AGREEMENT_TIMEOUT, client_entry->nickname);
+    break;
+    
+  default:
+    break;
+  } 
+
+  if (i)
+    silc_free(i);
+}
+
+/* Local command KEY. This command is used to set and unset private
+   keys for channels, set and unset private keys for private messages
+   with remote clients and to send key agreement requests and
+   negotiate the key agreement protocol with remote client.  The
+   key agreement is supported only to negotiate private message keys,
+   it currently cannot be used to negotiate private keys for channels,
+   as it is not convenient for that purpose. */
+
+typedef struct {
+  SILC_SERVER_REC *server;
+  char *data;
+  WI_ITEM_REC *item;
+} *KeyGetClients;
+
+/* Callback to be called after client information is resolved from the
+   server. */
+
+SILC_CLIENT_CMD_FUNC(key_get_clients)
+{
+  KeyGetClients internal = (KeyGetClients)context;
+  signal_emit("command key", 3, internal->data, internal->server,
+             internal->item);
+  silc_free(internal->data);
+  silc_free(internal);
+}
+
+static void command_key(const char *data, SILC_SERVER_REC *server,
+                       WI_ITEM_REC *item)
+{
+  SilcClientConnection conn = server->conn;
+  SilcClientEntry client_entry = NULL;
+  SilcChannelEntry channel_entry = NULL;
+  char *nickname = NULL, *tmp;
+  int command = 0, port = 0, type = 0;
+  char *hostname = NULL;
+  KeyInternal internal = NULL;
+  uint32 argc = 0;
+  unsigned char **argv;
+  uint32 *argv_lens, *argv_types;
+  if (!IS_SILC_SERVER(server) || !server->connected)
+    cmd_return_error(CMDERR_NOT_CONNECTED);
+
+  /* Now parse all arguments */
+  tmp = g_strconcat("KEY", " ", data, NULL);
+  silc_parse_command_line(tmp, &argv, &argv_lens, &argv_types, &argc, 7);
+  g_free(tmp);
+
+  if (argc < 4) {
+    silc_say(silc_client, conn, SILC_CLIENT_MESSAGE_INFO,
+            "Usage: /KEY msg|channel <nickname|channel> "
+            "set|unset|agreement|negotiate [<arguments>]");
+    return;
+  }
+
+  /* Get type */
+  if (!strcasecmp(argv[1], "msg"))
+    type = 1;
+  if (!strcasecmp(argv[1], "channel"))
+    type = 2;
+
+  if (type == 0) {
+    silc_say(silc_client, conn, SILC_CLIENT_MESSAGE_INFO,
+            "Usage: /KEY msg|channel <nickname|channel> "
+            "set|unset|agreement|negotiate [<arguments>]");
+    return;
+  }
+
+  if (type == 1) {
+    if (argv[2][0] == '*') {
+      nickname = "*";
+    } else {
+      /* Parse the typed nickname. */
+      if (!silc_parse_userfqdn(argv[2], &nickname, NULL)) {
+       printformat_module("fe-common/silc", server, NULL,
+                          MSGLEVEL_CRAP, SILCTXT_BAD_NICK, argv[2]);
+       return;
+      }
+      
+      /* Find client entry */
+      client_entry = silc_idlist_get_client(silc_client, conn, nickname, 
+                                           argv[2], TRUE);
+      if (!client_entry) {
+       KeyGetClients inter = silc_calloc(1, sizeof(*inter));
+       inter->server = server;
+       inter->data = strdup(data);
+       inter->item = item;
+
+       /* Client entry not found, it was requested thus mark this to be
+          pending command. */
+       silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY, 
+                                   conn->cmd_ident, 
+                                   NULL, silc_client_command_key_get_clients, 
+                                   inter);
+       goto out;
+      }
+    }
+  }
+
+  if (type == 2) {
+    /* Get channel entry */
+    char *name;
+
+    if (argv[2][0] == '*') {
+      if (!conn->current_channel) {
+       silc_free(nickname);
+       cmd_return_error(CMDERR_NOT_JOINED);
+      }
+      name = conn->current_channel->channel_name;
+    } else {
+      name = argv[2];
+    }
+
+    channel_entry = silc_client_get_channel(silc_client, conn, name);
+    if (!channel_entry) {
+      silc_free(nickname);
+      cmd_return_error(CMDERR_NOT_JOINED);
+    }
+  }
+
+  /* Set command */
+  if (!strcasecmp(argv[3], "set")) {
+    command = 1;
+
+    if (argc >= 5) {
+      if (type == 1 && client_entry) {
+       /* Set private message key */
+       
+       silc_client_del_private_message_key(silc_client, conn, client_entry);
+
+       if (argc >= 6)
+         silc_client_add_private_message_key(silc_client, conn, client_entry,
+                                             argv[5], argv[4],
+                                             argv_lens[4],
+                                             (argv[4][0] == '*' ?
+                                              TRUE : FALSE), FALSE);
+       else
+         silc_client_add_private_message_key(silc_client, conn, client_entry,
+                                             NULL, argv[4],
+                                             argv_lens[4],
+                                             (argv[4][0] == '*' ?
+                                              TRUE : FALSE), FALSE);
+
+       /* Send the key to the remote client so that it starts using it
+          too. */
+       silc_client_send_private_message_key(silc_client, conn, 
+                                            client_entry, TRUE);
+      } else if (type == 2) {
+       /* Set private channel key */
+       char *cipher = NULL, *hmac = NULL;
+
+       if (!(channel_entry->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
+         printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+                            SILCTXT_CH_PRIVATE_KEY_NOMODE, 
+                            channel_entry->channel_name);
+         goto out;
+       }
+
+       if (argc >= 6)
+         cipher = argv[5];
+       if (argc >= 7)
+         hmac = argv[6];
+
+       if (!silc_client_add_channel_private_key(silc_client, conn, 
+                                                channel_entry,
+                                                cipher, hmac,
+                                                argv[4],
+                                                argv_lens[4])) {
+         printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+                            SILCTXT_CH_PRIVATE_KEY_ERROR, 
+                            channel_entry->channel_name);
+         goto out;
+       }
+
+       printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+                          SILCTXT_CH_PRIVATE_KEY_ADD, 
+                          channel_entry->channel_name);
+      }
+    }
+
+    goto out;
+  }
+  
+  /* Unset command */
+  if (!strcasecmp(argv[3], "unset")) {
+    command = 2;
+
+    if (type == 1 && client_entry) {
+      /* Unset private message key */
+      silc_client_del_private_message_key(silc_client, conn, client_entry);
+    } else if (type == 2) {
+      /* Unset channel key(s) */
+      SilcChannelPrivateKey *keys;
+      uint32 keys_count;
+      int number;
+
+      if (argc == 4)
+       silc_client_del_channel_private_keys(silc_client, conn, 
+                                            channel_entry);
+
+      if (argc > 4) {
+       number = atoi(argv[4]);
+       keys = silc_client_list_channel_private_keys(silc_client, conn, 
+                                                    channel_entry,
+                                                    &keys_count);
+       if (!keys)
+         goto out;
+
+       if (!number || number > keys_count) {
+         silc_client_free_channel_private_keys(keys, keys_count);
+         goto out;
+       }
+
+       silc_client_del_channel_private_key(silc_client, conn, channel_entry,
+                                           keys[number - 1]);
+       silc_client_free_channel_private_keys(keys, keys_count);
+      }
+
+      goto out;
+    }
+  }
+
+  /* List command */
+  if (!strcasecmp(argv[3], "list")) {
+    command = 3;
+
+    if (type == 1) {
+      SilcPrivateMessageKeys keys;
+      uint32 keys_count;
+      int k, i, len;
+      char buf[1024];
+
+      keys = silc_client_list_private_message_keys(silc_client, conn, 
+                                                  &keys_count);
+      if (!keys)
+       goto out;
+
+      /* list the private message key(s) */
+      if (nickname[0] == '*') {
+       printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+                          SILCTXT_PRIVATE_KEY_LIST);
+       for (k = 0; k < keys_count; k++) {
+         memset(buf, 0, sizeof(buf));
+         strncat(buf, "  ", 2);
+         len = strlen(keys[k].client_entry->nickname);
+         strncat(buf, keys[k].client_entry->nickname, len > 30 ? 30 : len);
+         if (len < 30)
+           for (i = 0; i < 30 - len; i++)
+             strcat(buf, " ");
+         strcat(buf, " ");
+         
+         len = strlen(keys[k].cipher);
+         strncat(buf, keys[k].cipher, len > 14 ? 14 : len);
+         if (len < 14)
+           for (i = 0; i < 14 - len; i++)
+             strcat(buf, " ");
+         strcat(buf, " ");
+
+         if (keys[k].key)
+           strcat(buf, "<hidden>");
+         else
+           strcat(buf, "*generated*");
+
+         silc_say(silc_client, conn, SILC_CLIENT_MESSAGE_INFO, "%s", buf);
+       }
+      } else {
+       printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+                          SILCTXT_PRIVATE_KEY_LIST_NICK,
+                          client_entry->nickname);
+       for (k = 0; k < keys_count; k++) {
+         if (keys[k].client_entry != client_entry)
+           continue;
+
+         memset(buf, 0, sizeof(buf));
+         strncat(buf, "  ", 2);
+         len = strlen(keys[k].client_entry->nickname);
+         strncat(buf, keys[k].client_entry->nickname, len > 30 ? 30 : len);
+         if (len < 30)
+           for (i = 0; i < 30 - len; i++)
+             strcat(buf, " ");
+         strcat(buf, " ");
+         
+         len = strlen(keys[k].cipher);
+         strncat(buf, keys[k].cipher, len > 14 ? 14 : len);
+         if (len < 14)
+           for (i = 0; i < 14 - len; i++)
+             strcat(buf, " ");
+         strcat(buf, " ");
+
+         if (keys[k].key)
+           strcat(buf, "<hidden>");
+         else
+           strcat(buf, "*generated*");
+
+         silc_say(silc_client, conn, SILC_CLIENT_MESSAGE_INFO, "%s", buf);
+       }
+      }
+
+      silc_client_free_private_message_keys(keys, keys_count);
+    } else if (type == 2) {
+      SilcChannelPrivateKey *keys;
+      uint32 keys_count;
+      int k, i, len;
+      char buf[1024];
+
+      keys = silc_client_list_channel_private_keys(silc_client, conn, 
+                                                  channel_entry,
+                                                  &keys_count);
+      if (!keys)
+       goto out;
+      
+      printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
+                        SILCTXT_CH_PRIVATE_KEY_LIST,
+                        channel_entry->channel_name);
+      for (k = 0; k < keys_count; k++) {
+       memset(buf, 0, sizeof(buf));
+       strncat(buf, "  ", 2);
+
+       len = strlen(keys[k]->cipher->cipher->name);
+       strncat(buf, keys[k]->cipher->cipher->name, len > 16 ? 16 : len);
+       if (len < 16)
+         for (i = 0; i < 16 - len; i++)
+           strcat(buf, " ");
+       strcat(buf, " ");
+       
+       len = strlen(keys[k]->hmac->hmac->name);
+       strncat(buf, keys[k]->hmac->hmac->name, len > 16 ? 16 : len);
+       if (len < 16)
+         for (i = 0; i < 16 - len; i++)
+           strcat(buf, " ");
+       strcat(buf, " ");
+       
+       strcat(buf, "<hidden>");
+
+       silc_say(silc_client, conn, SILC_CLIENT_MESSAGE_INFO, "%s", buf);
+      }
+      
+      silc_client_free_channel_private_keys(keys, keys_count);
+    }
+
+    goto out;
+  }
+
+  /* Send command is used to send key agreement */
+  if (!strcasecmp(argv[3], "agreement")) {
+    command = 4;
+
+    if (argc >= 5)
+      hostname = argv[4];
+    if (argc >= 6)
+      port = atoi(argv[5]);
+
+    internal = silc_calloc(1, sizeof(*internal));
+    internal->type = type;
+    internal->server = server;
+  }
+
+  /* Start command is used to start key agreement (after receiving the
+     key_agreement client operation). */
+  if (!strcasecmp(argv[3], "negotiate")) {
+    command = 5;
+
+    if (argc >= 5)
+      hostname = argv[4];
+    if (argc >= 6)
+      port = atoi(argv[5]);
+
+    internal = silc_calloc(1, sizeof(*internal));
+    internal->type = type;
+    internal->server = server;
+  }
+
+  if (command == 0) {
+    silc_say(silc_client, conn, SILC_CLIENT_MESSAGE_INFO,
+            "Usage: /KEY msg|channel <nickname|channel> "
+            "set|unset|agreement|negotiate [<arguments>]");
+    goto out;
+  }
+
+  if (command == 4 && client_entry) {
+    printformat_module("fe-common/silc", server, NULL, MSGLEVEL_NOTICES,
+                      SILCTXT_KEY_AGREEMENT, argv[2]);
+    internal->responder = TRUE;
+    silc_client_send_key_agreement(silc_client, conn, client_entry, hostname, 
+                                  port, 120, keyagr_completion, internal);
+    if (!hostname)
+      silc_free(internal);
+    goto out;
+  }
+
+  if (command == 5 && client_entry && hostname) {
+    printformat_module("fe-common/silc", server, NULL, MSGLEVEL_NOTICES,
+                      SILCTXT_KEY_AGREEMENT_NEGOTIATE, argv[2]);
+    internal->responder = FALSE;
+    silc_client_perform_key_agreement(silc_client, conn, client_entry, 
+                                     hostname, port, keyagr_completion, 
+                                     internal);
+    goto out;
+  }
+
+ out:
+  silc_free(nickname);
+}
+
+/* Lists locally saved client and server public keys. */
+
+static void command_listkeys(const char *data, SILC_SERVER_REC *server,
+                            WI_ITEM_REC *item)
+{
+
+}
+
 void silc_channels_init(void)
 {
   signal_add("channel destroyed", (SIGNAL_FUNC) sig_channel_destroyed);
@@ -533,12 +1193,15 @@ void silc_channels_init(void)
   signal_add("silc event server_signoff", (SIGNAL_FUNC) event_server_signoff);
   signal_add("silc event kick", (SIGNAL_FUNC) event_kick);
   signal_add("silc event kill", (SIGNAL_FUNC) event_kill);
-  signal_add("silc event ban", (SIGNAL_FUNC) event_ban);
   
   command_bind("part", MODULE_NAME, (SIGNAL_FUNC) command_part);
   command_bind("me", MODULE_NAME, (SIGNAL_FUNC) command_me);
+  command_bind("action", MODULE_NAME, (SIGNAL_FUNC) command_action);
   command_bind("notice", MODULE_NAME, (SIGNAL_FUNC) command_notice);
-  
+  command_bind("away", MODULE_NAME, (SIGNAL_FUNC) command_away);
+  command_bind("key", MODULE_NAME, (SIGNAL_FUNC) command_key);
+  command_bind("listkeys", MODULE_NAME, (SIGNAL_FUNC) command_listkeys);
+
   silc_nicklist_init();
 }
 
@@ -563,11 +1226,14 @@ void silc_channels_deinit(void)
                (SIGNAL_FUNC) event_server_signoff);
   signal_remove("silc event kick", (SIGNAL_FUNC) event_kick);
   signal_remove("silc event kill", (SIGNAL_FUNC) event_kill);
-  signal_remove("silc event ban", (SIGNAL_FUNC) event_ban);
   
   command_unbind("part", (SIGNAL_FUNC) command_part);
   command_unbind("me", (SIGNAL_FUNC) command_me);
+  command_unbind("action", (SIGNAL_FUNC) command_action);
   command_unbind("notice", (SIGNAL_FUNC) command_notice);
-  
+  command_unbind("away", (SIGNAL_FUNC) command_away);
+  command_unbind("key", (SIGNAL_FUNC) command_key);
+  command_unbind("listkeys", (SIGNAL_FUNC) command_listkeys);
+
   silc_nicklist_deinit();
 }