*Commands: move to src/command/

src/command/MessageCommands.cxx

@@ -0,0 +1,137 @@
+/*
+ * 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 "Client.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>
+
+CommandResult
+handle_subscribe(Client &client, gcc_unused int argc, char *argv[])
+{
+	assert(argc == 2);
+
+	switch (client.Subscribe(argv[1])) {
+	case Client::SubscribeResult::OK:
+		return CommandResult::OK;
+
+	case Client::SubscribeResult::INVALID:
+		command_error(client, ACK_ERROR_ARG,
+			      "invalid channel name");
+		return CommandResult::ERROR;
+
+	case Client::SubscribeResult::ALREADY:
+		command_error(client, ACK_ERROR_EXIST,
+			      "already subscribed to this channel");
+		return CommandResult::ERROR;
+
+	case Client::SubscribeResult::FULL:
+		command_error(client, ACK_ERROR_EXIST,
+			      "subscription list is full");
+		return CommandResult::ERROR;
+	}
+
+	/* unreachable */
+	assert(false);
+	gcc_unreachable();
+}
+
+CommandResult
+handle_unsubscribe(Client &client, gcc_unused int argc, char *argv[])
+{
+	assert(argc == 2);
+
+	if (client.Unsubscribe(argv[1]))
+		return CommandResult::OK;
+	else {
+		command_error(client, ACK_ERROR_NO_EXIST,
+			      "not subscribed to this channel");
+		return CommandResult::ERROR;
+	}
+}
+
+CommandResult
+handle_channels(Client &client,
+		gcc_unused int argc, gcc_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 CommandResult::OK;
+}
+
+CommandResult
+handle_read_messages(Client &client,
+		     gcc_unused int argc, gcc_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 CommandResult::OK;
+}
+
+CommandResult
+handle_send_message(Client &client,
+		    gcc_unused int argc, gcc_unused char *argv[])
+{
+	assert(argc == 3);
+
+	if (!client_message_valid_channel_name(argv[1])) {
+		command_error(client, ACK_ERROR_ARG,
+			      "invalid channel name");
+		return CommandResult::ERROR;
+	}
+
+	bool sent = false;
+	const ClientMessage msg(argv[1], argv[2]);
+	for (const auto &c : *instance->client_list)
+		if (c->PushMessage(msg))
+			sent = true;
+
+	if (sent)
+		return CommandResult::OK;
+	else {
+		command_error(client, ACK_ERROR_NO_EXIST,
+			      "nobody is subscribed to this channel");
+		return CommandResult::ERROR;
+	}
+}