Call the connection callback in disconnection always as the last
[silc.git] / lib / silcclient / command_reply.c
index bbb4f2a29961d5c7e8c35267c8e3b5609bdc2605..7d5a01e2f6f23d852c321228f428c61a82fd732d 100644 (file)
@@ -4,7 +4,7 @@
 
   Author: Pekka Riikonen <priikone@silcnet.org>
 
-  Copyright (C) 1997 - 2006 Pekka Riikonen
+  Copyright (C) 1997 - 2007 Pekka Riikonen
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -69,6 +69,7 @@ static inline void
 silc_client_command_callback(SilcClientCommandContext cmd, ...)
 {
   SilcClientCommandReplyCallback cb;
+  SilcList list;
   va_list ap, cp;
 
   va_start(ap, cmd);
@@ -83,8 +84,9 @@ silc_client_command_callback(SilcClientCommandContext cmd, ...)
   }
 
   /* Reply callback */
-  silc_list_start(cmd->reply_callbacks);
-  while ((cb = silc_list_get(cmd->reply_callbacks)))
+  list = cmd->reply_callbacks;
+  silc_list_start(list);
+  while ((cb = silc_list_get(list)))
     if (!cb->do_not_call) {
       silc_va_copy(cp, ap);
       cb->do_not_call = !cb->reply(cmd->conn->client, cmd->conn, cmd->cmd,
@@ -104,19 +106,53 @@ static void silc_client_command_process_error(SilcClientCommandContext cmd,
   SilcClient client = cmd->conn->client;
   SilcClientConnection conn = cmd->conn;
   SilcArgumentPayload args = silc_command_get_args(payload);
-  SilcClientEntry client_entry;
   SilcID id;
 
   if (cmd->error == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
+    SilcClientEntry client_entry;
+
     /* Remove unknown client entry from cache */
     if (!silc_argument_get_decoded(args, 2, SILC_ARGUMENT_ID, &id, NULL))
       return;
 
     client_entry = silc_client_get_client_by_id(client, conn, &id.u.client_id);
     if (client_entry) {
-      silc_client_unref_client(client, conn, client_entry);
+      silc_client_remove_from_channels(client, conn, client_entry);
       silc_client_del_client(client, conn, client_entry);
+      silc_client_unref_client(client, conn, client_entry);
+    }
+    return;
+  }
+
+  if (cmd->error == SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID) {
+    SilcChannelEntry channel;
+
+    /* Remove unknown client entry from cache */
+    if (!silc_argument_get_decoded(args, 2, SILC_ARGUMENT_ID, &id, NULL))
+      return;
+
+    channel = silc_client_get_channel_by_id(client, conn, &id.u.channel_id);
+    if (channel) {
+      silc_client_empty_channel(client, conn, channel);
+      silc_client_del_channel(client, conn, channel);
+      silc_client_unref_channel(client, conn, channel);
+    }
+    return;
+  }
+
+  if (cmd->error == SILC_STATUS_ERR_NO_SUCH_SERVER_ID) {
+    SilcServerEntry server_entry;
+
+    /* Remove unknown client entry from cache */
+    if (!silc_argument_get_decoded(args, 2, SILC_ARGUMENT_ID, &id, NULL))
+      return;
+
+    server_entry = silc_client_get_server_by_id(client, conn, &id.u.server_id);
+    if (server_entry) {
+      silc_client_del_server(client, conn, server_entry);
+      silc_client_unref_server(client, conn, server_entry);
     }
+    return;
   }
 }
 
@@ -175,11 +211,14 @@ SILC_FSM_STATE(silc_client_command_reply)
 
 SILC_FSM_STATE(silc_client_command_reply_wait)
 {
+  SilcClientCommandContext cmd = fsm_context;
+
   SILC_LOG_DEBUG(("Wait for command reply"));
 
   /** Wait for command reply */
   silc_fsm_set_state_context(fsm, NULL);
-  silc_fsm_next_later(fsm, silc_client_command_reply_timeout, 20, 0);
+  silc_fsm_next_later(fsm, silc_client_command_reply_timeout,
+                     cmd->cmd != SILC_COMMAND_PING ? 25 : 60, 0);
   return SILC_FSM_WAIT;
 }
 
@@ -191,6 +230,14 @@ SILC_FSM_STATE(silc_client_command_reply_timeout)
   SilcClientConnection conn = cmd->conn;
   SilcArgumentPayload args = NULL;
 
+  if (conn->internal->disconnected) {
+    SILC_LOG_DEBUG(("Command %s canceled", silc_get_command_name(cmd->cmd)));
+    silc_list_del(conn->internal->pending_commands, cmd);
+    if (!cmd->called)
+      ERROR_CALLBACK(SILC_STATUS_ERR_TIMEDOUT);
+    return SILC_FSM_FINISH;
+  }
+
   SILC_LOG_DEBUG(("Command %s timeout", silc_get_command_name(cmd->cmd)));
 
   /* Timeout, reply not received in timely fashion */
@@ -605,7 +652,7 @@ SILC_FSM_STATE(silc_client_command_reply_identify)
     channel_entry = silc_client_get_channel_by_id(client, conn,
                                                  &id.u.channel_id);
     if (!channel_entry) {
-      SILC_LOG_DEBUG(("Adding new channel entry (IDENTIFY"));
+      SILC_LOG_DEBUG(("Adding new channel entry (IDENTIFY)"));
 
       if (!name) {
        ERROR_CALLBACK(SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
@@ -644,7 +691,7 @@ SILC_FSM_STATE(silc_client_command_reply_nick)
   SilcClient client = conn->client;
   SilcCommandPayload payload = state_context;
   SilcArgumentPayload args = silc_command_get_args(payload);
-  unsigned char *tmp, *nick, *idp;
+  unsigned char *nick, *idp;
   SilcUInt32 len, idp_len;
   SilcClientID old_client_id;
   SilcID id;
@@ -653,8 +700,6 @@ SILC_FSM_STATE(silc_client_command_reply_nick)
   CHECK_STATUS("Cannot set nickname: ");
   CHECK_ARGS(2, 3);
 
-  old_client_id = *conn->local_id;
-
   /* Take received Client ID */
   idp = silc_argument_get_arg_type(args, 2, &idp_len);
   if (!idp) {
@@ -673,32 +718,14 @@ SILC_FSM_STATE(silc_client_command_reply_nick)
     goto out;
   }
 
-  /* Normalize nickname */
-  tmp = silc_identifier_check(nick, len, SILC_STRING_UTF8, 128, NULL);
-  if (!tmp) {
+  /* Change the nickname */
+  old_client_id = *conn->local_id;
+  if (!silc_client_change_nickname(client, conn, conn->local_entry,
+                                  nick, &id.u.client_id, idp, idp_len)) {
     ERROR_CALLBACK(SILC_STATUS_ERR_BAD_NICKNAME);
     goto out;
   }
 
-  /* Update the client entry */
-  silc_mutex_lock(conn->internal->lock);
-  if (!silc_idcache_update(conn->internal->client_cache,
-                          conn->internal->local_entry,
-                          &id.u.client_id, tmp, TRUE)) {
-    silc_free(tmp);
-    silc_mutex_unlock(conn->internal->lock);
-    ERROR_CALLBACK(SILC_STATUS_ERR_BAD_NICKNAME);
-    goto out;
-  }
-  silc_mutex_unlock(conn->internal->lock);
-  memset(conn->local_entry->nickname, 0, sizeof(conn->local_entry->nickname));
-  memcpy(conn->local_entry->nickname, nick, len);
-  conn->local_entry->nickname_normalized = tmp;
-  silc_buffer_enlarge(conn->internal->local_idp, idp_len);
-  silc_buffer_put(conn->internal->local_idp, idp, idp_len);
-  silc_client_nickname_format(client, conn, conn->local_entry);
-  silc_packet_set_ids(conn->stream, SILC_ID_CLIENT, conn->local_id, 0, NULL);
-
   /* Notify application */
   silc_client_command_callback(cmd, conn->local_entry,
                               conn->local_entry->nickname, &old_client_id);
@@ -897,8 +924,9 @@ SILC_FSM_STATE(silc_client_command_reply_kill)
   /* Notify application */
   silc_client_command_callback(cmd, client_entry);
 
-  /* Remove the client from all channels and free it */
+  /* Remove the client */
   if (client_entry) {
+    silc_client_remove_from_channels(client, conn, client_entry);
     silc_client_del_client(client, conn, client_entry);
     silc_client_unref_client(client, conn, client_entry);
   }
@@ -1086,7 +1114,6 @@ SILC_FSM_STATE(silc_client_command_reply_join)
   const char *cipher;
   SilcBufferStruct client_id_list, client_mode_list, keyp;
   SilcHashTableList htl;
-  SilcDList chpks = NULL;
   SilcID id;
   int i;
 
@@ -1240,23 +1267,21 @@ SILC_FSM_STATE(silc_client_command_reply_join)
   /* Get channel public key list */
   tmp = silc_argument_get_arg_type(args, 16, &len);
   if (tmp)
-    chpks = silc_argument_list_parse_decoded(tmp, len,
-                                            SILC_ARGUMENT_PUBLIC_KEY);
+    channel->channel_pubkeys =
+      silc_argument_list_parse_decoded(tmp, len, SILC_ARGUMENT_PUBLIC_KEY);
 
   /* Set current channel */
   conn->current_channel = channel;
 
-  cipher = (channel->internal.channel_key ?
-           silc_cipher_get_name(channel->internal.channel_key) : NULL);
+  cipher = (channel->internal.send_key ?
+           silc_cipher_get_name(channel->internal.send_key) : NULL);
   silc_hash_table_list(channel->user_list, &htl);
 
   /* Notify application */
   silc_client_command_callback(cmd, channel_name, channel, mode, &htl,
                               topic, cipher, hmac, channel->founder_key,
-                              chpks, channel->user_limit);
+                              channel->channel_pubkeys, channel->user_limit);
 
-  if (chpks)
-    silc_argument_list_free(chpks, SILC_ARGUMENT_PUBLIC_KEY);
   silc_hash_table_list_reset(&htl);
   silc_client_unref_channel(client, conn, channel);
 
@@ -1608,20 +1633,18 @@ SILC_FSM_STATE(silc_client_command_reply_detach)
   CHECK_STATUS("Cannot detach: ");
   CHECK_ARGS(1, 1);
 
-  /* Notify application */
-  silc_client_command_callback(cmd);
-
-#if 0
-  /* Generate the detachment data and deliver it to the client in the
-     detach client operation */
+  /* Get detachment data */
   detach = silc_client_get_detach_data(client, conn);
-  if (detach) {
-    client->internal->ops->detach(client, conn, silc_buffer_data(detach),
-                                 silc_buffer_len(detach));
-    silc_buffer_free(detach);
+  if (!detach) {
+    ERROR_CALLBACK(SILC_STATUS_ERR_RESOURCE_LIMIT);
+    goto out;
   }
-#endif /* 0 */
 
+  /* Notify application */
+  silc_client_command_callback(cmd, detach);
+  silc_buffer_free(detach);
+
+ out:
   silc_fsm_next(fsm, silc_client_command_reply_processed);
   return SILC_FSM_CONTINUE;
 }
@@ -1731,6 +1754,7 @@ SILC_FSM_STATE(silc_client_command_reply_leave)
   silc_client_command_callback(cmd, channel);
 
   /* Now delete the channel. */
+  silc_client_empty_channel(client, conn, channel);
   silc_client_del_channel(client, conn, channel);
 
  out:
@@ -1792,7 +1816,7 @@ SILC_FSM_STATE(silc_client_command_reply_users)
   SilcUInt16 idp_len, mode;
   SilcHashTableList htl;
   SilcBufferStruct client_id_list, client_mode_list;
-  SilcChannelEntry channel;
+  SilcChannelEntry channel = NULL;
   SilcClientEntry client_entry;
   SilcID id;
   int i;
@@ -1836,6 +1860,7 @@ SILC_FSM_STATE(silc_client_command_reply_users)
   /* Resolve users we do not know about */
   if (!cmd->resolved) {
     cmd->resolved = TRUE;
+    silc_client_unref_channel(client, conn, channel);
     SILC_FSM_CALL(silc_client_get_clients_by_list(
                          client, conn, list_count, &client_id_list,
                          silc_client_command_reply_users_resolved, cmd));
@@ -1881,6 +1906,7 @@ SILC_FSM_STATE(silc_client_command_reply_users)
   silc_hash_table_list_reset(&htl);
 
  out:
+  silc_client_unref_channel(client, conn, channel);
   silc_fsm_next(fsm, silc_client_command_reply_processed);
   return SILC_FSM_CONTINUE;
 }