177 lines
4.3 KiB
C++
177 lines
4.3 KiB
C++
/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "MessageCommands.hxx"
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#include "ClientSubscribe.hxx"
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#include "ClientInternal.hxx"
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#include "protocol/Result.hxx"
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#include "protocol/ArgParser.hxx"
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#include <set>
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#include <string>
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#include <assert.h>
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enum command_return
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handle_subscribe(Client *client, G_GNUC_UNUSED int argc, char *argv[])
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{
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assert(argc == 2);
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switch (client_subscribe(client, argv[1])) {
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case CLIENT_SUBSCRIBE_OK:
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return COMMAND_RETURN_OK;
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case CLIENT_SUBSCRIBE_INVALID:
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command_error(client, ACK_ERROR_ARG,
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"invalid channel name");
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return COMMAND_RETURN_ERROR;
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case CLIENT_SUBSCRIBE_ALREADY:
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command_error(client, ACK_ERROR_EXIST,
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"already subscribed to this channel");
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return COMMAND_RETURN_ERROR;
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case CLIENT_SUBSCRIBE_FULL:
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command_error(client, ACK_ERROR_EXIST,
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"subscription list is full");
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return COMMAND_RETURN_ERROR;
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}
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/* unreachable */
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return COMMAND_RETURN_OK;
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}
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enum command_return
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handle_unsubscribe(Client *client, G_GNUC_UNUSED int argc, char *argv[])
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{
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assert(argc == 2);
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if (client_unsubscribe(client, argv[1]))
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return COMMAND_RETURN_OK;
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else {
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command_error(client, ACK_ERROR_NO_EXIST,
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"not subscribed to this channel");
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return COMMAND_RETURN_ERROR;
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}
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}
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struct channels_context {
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std::set<std::string> channels;
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};
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static void
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collect_channels(gpointer data, gpointer user_data)
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{
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struct channels_context *context =
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(struct channels_context *)user_data;
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const Client *client = (const Client *)data;
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for (GSList *i = client->subscriptions; i != NULL;
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i = g_slist_next(i)) {
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const char *channel = (const char *)i->data;
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context->channels.insert(channel);
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}
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}
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enum command_return
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handle_channels(Client *client,
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G_GNUC_UNUSED int argc, G_GNUC_UNUSED char *argv[])
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{
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assert(argc == 1);
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struct channels_context context;
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client_list_foreach(collect_channels, &context);
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for (const auto &channel : context.channels)
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client_printf(client, "channel: %s\n", channel.c_str());
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return COMMAND_RETURN_OK;
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}
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enum command_return
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handle_read_messages(Client *client,
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G_GNUC_UNUSED int argc, G_GNUC_UNUSED char *argv[])
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{
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assert(argc == 1);
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GSList *messages = client_read_messages(client);
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for (GSList *i = messages; i != NULL; i = g_slist_next(i)) {
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struct client_message *msg = (struct client_message *)i->data;
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client_printf(client, "channel: %s\nmessage: %s\n",
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msg->channel, msg->message);
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client_message_free(msg);
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}
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g_slist_free(messages);
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return COMMAND_RETURN_OK;
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}
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struct send_message_context {
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struct client_message msg;
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bool sent;
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};
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static void
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send_message(gpointer data, gpointer user_data)
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{
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struct send_message_context *context =
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(struct send_message_context *)user_data;
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Client *client = (Client *)data;
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if (client_push_message(client, &context->msg))
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context->sent = true;
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}
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enum command_return
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handle_send_message(Client *client,
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G_GNUC_UNUSED int argc, G_GNUC_UNUSED char *argv[])
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{
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assert(argc == 3);
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if (!client_message_valid_channel_name(argv[1])) {
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command_error(client, ACK_ERROR_ARG,
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"invalid channel name");
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return COMMAND_RETURN_ERROR;
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}
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struct send_message_context context;
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context.sent = false;
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client_message_init(&context.msg, argv[1], argv[2]);
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client_list_foreach(send_message, &context);
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client_message_deinit(&context.msg);
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if (context.sent)
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return COMMAND_RETURN_OK;
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else {
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command_error(client, ACK_ERROR_NO_EXIST,
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"nobody is subscribed to this channel");
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return COMMAND_RETURN_ERROR;
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}
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}
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