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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 "ClientInternal.hxx"
#include "protocol/Result.hxx"
#include "AllCommands.hxx"
#include <string.h>
#define CLIENT_LIST_MODE_BEGIN "command_list_begin"
#define CLIENT_LIST_OK_MODE_BEGIN "command_list_ok_begin"
#define CLIENT_LIST_MODE_END "command_list_end"
static enum command_return
client_process_command_list(struct client *client, bool list_ok, GSList *list)
{
enum command_return ret = COMMAND_RETURN_OK;
unsigned num = 0;
for (GSList *cur = list; cur != NULL; cur = g_slist_next(cur)) {
char *cmd = (char *)cur->data;
g_debug("command_process_list: process command \"%s\"",
cmd);
ret = command_process(client, num++, cmd);
g_debug("command_process_list: command returned %i", ret);
if (ret != COMMAND_RETURN_OK || client_is_expired(client))
break;
else if (list_ok)
client_puts(client, "list_OK\n");
}
return ret;
}
enum command_return
client_process_line(struct client *client, char *line)
{
enum command_return ret;
if (strcmp(line, "noidle") == 0) {
if (client->idle_waiting) {
/* send empty idle response and leave idle mode */
client->idle_waiting = false;
command_success(client);
client_write_output(client);
}
/* do nothing if the client wasn't idling: the client
has already received the full idle response from
client_idle_notify(), which he can now evaluate */
return COMMAND_RETURN_OK;
} else if (client->idle_waiting) {
/* during idle mode, clients must not send anything
except "noidle" */
g_warning("[%u] command \"%s\" during idle",
client->num, line);
return COMMAND_RETURN_CLOSE;
}
if (client->cmd_list_OK >= 0) {
if (strcmp(line, CLIENT_LIST_MODE_END) == 0) {
g_debug("[%u] process command list",
client->num);
/* for scalability reasons, we have prepended
each new command; now we have to reverse it
to restore the correct order */
client->cmd_list = g_slist_reverse(client->cmd_list);
ret = client_process_command_list(client,
client->cmd_list_OK,
client->cmd_list);
g_debug("[%u] process command "
"list returned %i", client->num, ret);
if (ret == COMMAND_RETURN_CLOSE ||
client_is_expired(client))
return COMMAND_RETURN_CLOSE;
if (ret == COMMAND_RETURN_OK)
command_success(client);
client_write_output(client);
free_cmd_list(client->cmd_list);
client->cmd_list = NULL;
client->cmd_list_OK = -1;
} else {
size_t len = strlen(line) + 1;
client->cmd_list_size += len;
if (client->cmd_list_size >
client_max_command_list_size) {
g_warning("[%u] command list size (%lu) "
"is larger than the max (%lu)",
client->num,
(unsigned long)client->cmd_list_size,
(unsigned long)client_max_command_list_size);
return COMMAND_RETURN_CLOSE;
}
new_cmd_list_ptr(client, line);
ret = COMMAND_RETURN_OK;
}
} else {
if (strcmp(line, CLIENT_LIST_MODE_BEGIN) == 0) {
client->cmd_list_OK = 0;
ret = COMMAND_RETURN_OK;
} else if (strcmp(line, CLIENT_LIST_OK_MODE_BEGIN) == 0) {
client->cmd_list_OK = 1;
ret = COMMAND_RETURN_OK;
} else {
g_debug("[%u] process command \"%s\"",
client->num, line);
ret = command_process(client, 0, line);
g_debug("[%u] command returned %i",
client->num, ret);
if (ret == COMMAND_RETURN_CLOSE ||
client_is_expired(client))
return COMMAND_RETURN_CLOSE;
if (ret == COMMAND_RETURN_OK)
command_success(client);
client_write_output(client);
}
}
return ret;
}
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