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/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "MessageCommands.hxx"
#include "ClientSubscribe.hxx"
#include "ClientInternal.hxx"
#include "ClientList.hxx"
#include "Instance.hxx"
#include "Main.hxx"
#include "protocol/Result.hxx"
#include "protocol/ArgParser.hxx"
#include <set>
#include <string>
#include <assert.h>
enum command_return
handle_subscribe(Client *client, G_GNUC_UNUSED int argc, char *argv[])
{
assert(argc == 2);
switch (client_subscribe(client, argv[1])) {
case CLIENT_SUBSCRIBE_OK:
return COMMAND_RETURN_OK;
case CLIENT_SUBSCRIBE_INVALID:
command_error(client, ACK_ERROR_ARG,
"invalid channel name");
return COMMAND_RETURN_ERROR;
case CLIENT_SUBSCRIBE_ALREADY:
command_error(client, ACK_ERROR_EXIST,
"already subscribed to this channel");
return COMMAND_RETURN_ERROR;
case CLIENT_SUBSCRIBE_FULL:
command_error(client, ACK_ERROR_EXIST,
"subscription list is full");
return COMMAND_RETURN_ERROR;
}
/* unreachable */
return COMMAND_RETURN_OK;
}
enum command_return
handle_unsubscribe(Client *client, G_GNUC_UNUSED int argc, char *argv[])
{
assert(argc == 2);
if (client_unsubscribe(client, argv[1]))
return COMMAND_RETURN_OK;
else {
command_error(client, ACK_ERROR_NO_EXIST,
"not subscribed to this channel");
return COMMAND_RETURN_ERROR;
}
}
enum command_return
handle_channels(Client *client,
G_GNUC_UNUSED int argc, G_GNUC_UNUSED char *argv[])
{
assert(argc == 1);
std::set<std::string> channels;
for (const auto &c : *instance->client_list)
channels.insert(c->subscriptions.begin(),
c->subscriptions.end());
for (const auto &channel : channels)
client_printf(client, "channel: %s\n", channel.c_str());
return COMMAND_RETURN_OK;
}
enum command_return
handle_read_messages(Client *client,
G_GNUC_UNUSED int argc, G_GNUC_UNUSED char *argv[])
{
assert(argc == 1);
while (!client->messages.empty()) {
const ClientMessage &msg = client->messages.front();
client_printf(client, "channel: %s\nmessage: %s\n",
msg.GetChannel(), msg.GetMessage());
client->messages.pop_front();
}
return COMMAND_RETURN_OK;
}
enum command_return
handle_send_message(Client *client,
G_GNUC_UNUSED int argc, G_GNUC_UNUSED char *argv[])
{
assert(argc == 3);
if (!client_message_valid_channel_name(argv[1])) {
command_error(client, ACK_ERROR_ARG,
"invalid channel name");
return COMMAND_RETURN_ERROR;
}
bool sent = false;
const ClientMessage msg(argv[1], argv[2]);
for (const auto &c : *instance->client_list)
if (client_push_message(c, msg))
sent = true;
if (sent)
return COMMAND_RETURN_OK;
else {
command_error(client, ACK_ERROR_NO_EXIST,
"nobody is subscribed to this channel");
return COMMAND_RETURN_ERROR;
}
}
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