421 lines
9.8 KiB
C++
421 lines
9.8 KiB
C++
/*
|
|
* Copyright (C) 2003-2015 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 "OtherCommands.hxx"
|
|
#include "Request.hxx"
|
|
#include "FileCommands.hxx"
|
|
#include "StorageCommands.hxx"
|
|
#include "CommandError.hxx"
|
|
#include "db/Uri.hxx"
|
|
#include "storage/StorageInterface.hxx"
|
|
#include "DetachedSong.hxx"
|
|
#include "SongPrint.hxx"
|
|
#include "TagPrint.hxx"
|
|
#include "TagStream.hxx"
|
|
#include "tag/TagHandler.hxx"
|
|
#include "TimePrint.hxx"
|
|
#include "decoder/DecoderPrint.hxx"
|
|
#include "ls.hxx"
|
|
#include "mixer/Volume.hxx"
|
|
#include "util/UriUtil.hxx"
|
|
#include "util/Error.hxx"
|
|
#include "util/ConstBuffer.hxx"
|
|
#include "util/StringAPI.hxx"
|
|
#include "fs/AllocatedPath.hxx"
|
|
#include "Stats.hxx"
|
|
#include "Permission.hxx"
|
|
#include "PlaylistFile.hxx"
|
|
#include "db/PlaylistVector.hxx"
|
|
#include "client/Client.hxx"
|
|
#include "client/Response.hxx"
|
|
#include "Partition.hxx"
|
|
#include "Instance.hxx"
|
|
#include "Idle.hxx"
|
|
|
|
#ifdef ENABLE_DATABASE
|
|
#include "DatabaseCommands.hxx"
|
|
#include "db/Interface.hxx"
|
|
#include "db/update/Service.hxx"
|
|
#endif
|
|
|
|
#include <assert.h>
|
|
#include <string.h>
|
|
|
|
static void
|
|
print_spl_list(Response &r, const PlaylistVector &list)
|
|
{
|
|
for (const auto &i : list) {
|
|
r.Format("playlist: %s\n", i.name.c_str());
|
|
|
|
if (i.mtime > 0)
|
|
time_print(r, "Last-Modified", i.mtime);
|
|
}
|
|
}
|
|
|
|
CommandResult
|
|
handle_urlhandlers(Client &client, gcc_unused Request args, Response &r)
|
|
{
|
|
if (client.IsLocal())
|
|
r.Format("handler: file://\n");
|
|
print_supported_uri_schemes(r);
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
CommandResult
|
|
handle_decoders(gcc_unused Client &client, gcc_unused Request args,
|
|
Response &r)
|
|
{
|
|
decoder_list_print(r);
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
CommandResult
|
|
handle_tagtypes(gcc_unused Client &client, gcc_unused Request request,
|
|
Response &r)
|
|
{
|
|
tag_print_types(r);
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
CommandResult
|
|
handle_kill(gcc_unused Client &client, gcc_unused Request request,
|
|
gcc_unused Response &r)
|
|
{
|
|
return CommandResult::KILL;
|
|
}
|
|
|
|
CommandResult
|
|
handle_close(gcc_unused Client &client, gcc_unused Request args,
|
|
gcc_unused Response &r)
|
|
{
|
|
return CommandResult::FINISH;
|
|
}
|
|
|
|
static void
|
|
print_tag(TagType type, const char *value, void *ctx)
|
|
{
|
|
auto &r = *(Response *)ctx;
|
|
|
|
tag_print(r, type, value);
|
|
}
|
|
|
|
CommandResult
|
|
handle_listfiles(Client &client, Request args, Response &r)
|
|
{
|
|
/* default is root directory */
|
|
const auto uri = args.GetOptional(0, "");
|
|
|
|
if (memcmp(uri, "file:///", 8) == 0)
|
|
/* list local directory */
|
|
return handle_listfiles_local(client, r, uri + 7);
|
|
|
|
#ifdef ENABLE_DATABASE
|
|
if (uri_has_scheme(uri))
|
|
/* use storage plugin to list remote directory */
|
|
return handle_listfiles_storage(r, uri);
|
|
|
|
/* must be a path relative to the configured
|
|
music_directory */
|
|
|
|
if (client.partition.instance.storage != nullptr)
|
|
/* if we have a storage instance, obtain a list of
|
|
files from it */
|
|
return handle_listfiles_storage(r,
|
|
*client.partition.instance.storage,
|
|
uri);
|
|
|
|
/* fall back to entries from database if we have no storage */
|
|
return handle_listfiles_db(client, r, uri);
|
|
#else
|
|
r.Error(ACK_ERROR_NO_EXIST, "No database");
|
|
return CommandResult::ERROR;
|
|
#endif
|
|
}
|
|
|
|
static constexpr tag_handler print_tag_handler = {
|
|
nullptr,
|
|
print_tag,
|
|
nullptr,
|
|
};
|
|
|
|
CommandResult
|
|
handle_lsinfo(Client &client, Request args, Response &r)
|
|
{
|
|
/* default is root directory */
|
|
const auto uri = args.GetOptional(0, "");
|
|
|
|
if (memcmp(uri, "file:///", 8) == 0) {
|
|
/* print information about an arbitrary local file */
|
|
const char *path_utf8 = uri + 7;
|
|
const auto path_fs = AllocatedPath::FromUTF8(path_utf8);
|
|
|
|
if (path_fs.IsNull()) {
|
|
r.Error(ACK_ERROR_NO_EXIST, "unsupported file name");
|
|
return CommandResult::ERROR;
|
|
}
|
|
|
|
Error error;
|
|
if (!client.AllowFile(path_fs, error))
|
|
return print_error(r, error);
|
|
|
|
DetachedSong song(path_utf8);
|
|
if (!song.Update()) {
|
|
r.Error(ACK_ERROR_NO_EXIST, "No such file");
|
|
return CommandResult::ERROR;
|
|
}
|
|
|
|
song_print_info(r, client.partition, song);
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
if (uri_has_scheme(uri)) {
|
|
if (!uri_supported_scheme(uri)) {
|
|
r.Error(ACK_ERROR_NO_EXIST, "unsupported URI scheme");
|
|
return CommandResult::ERROR;
|
|
}
|
|
|
|
if (!tag_stream_scan(uri, print_tag_handler, &r)) {
|
|
r.Error(ACK_ERROR_NO_EXIST, "No such file");
|
|
return CommandResult::ERROR;
|
|
}
|
|
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
#ifdef ENABLE_DATABASE
|
|
CommandResult result = handle_lsinfo2(client, uri, r);
|
|
if (result != CommandResult::OK)
|
|
return result;
|
|
#endif
|
|
|
|
if (isRootDirectory(uri)) {
|
|
Error error;
|
|
const auto &list = ListPlaylistFiles(error);
|
|
print_spl_list(r, list);
|
|
} else {
|
|
#ifndef ENABLE_DATABASE
|
|
r.Error(ACK_ERROR_NO_EXIST, "No database");
|
|
return CommandResult::ERROR;
|
|
#endif
|
|
}
|
|
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
#ifdef ENABLE_DATABASE
|
|
|
|
static CommandResult
|
|
handle_update(Response &r, UpdateService &update,
|
|
const char *uri_utf8, bool discard)
|
|
{
|
|
unsigned ret = update.Enqueue(uri_utf8, discard);
|
|
if (ret > 0) {
|
|
r.Format("updating_db: %i\n", ret);
|
|
return CommandResult::OK;
|
|
} else {
|
|
r.Error(ACK_ERROR_UPDATE_ALREADY, "already updating");
|
|
return CommandResult::ERROR;
|
|
}
|
|
}
|
|
|
|
static CommandResult
|
|
handle_update(Response &r, Database &db,
|
|
const char *uri_utf8, bool discard)
|
|
{
|
|
Error error;
|
|
unsigned id = db.Update(uri_utf8, discard, error);
|
|
if (id > 0) {
|
|
r.Format("updating_db: %i\n", id);
|
|
return CommandResult::OK;
|
|
} else if (error.IsDefined()) {
|
|
return print_error(r, error);
|
|
} else {
|
|
/* Database::Update() has returned 0 without setting
|
|
the Error: the method is not implemented */
|
|
r.Error(ACK_ERROR_NO_EXIST, "Not implemented");
|
|
return CommandResult::ERROR;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
static CommandResult
|
|
handle_update(Client &client, Request args, Response &r, bool discard)
|
|
{
|
|
#ifdef ENABLE_DATABASE
|
|
const char *path = "";
|
|
|
|
assert(args.size <= 1);
|
|
if (!args.IsEmpty()) {
|
|
path = args.front();
|
|
|
|
if (*path == 0 || StringIsEqual(path, "/"))
|
|
/* backwards compatibility with MPD 0.15 */
|
|
path = "";
|
|
else if (!uri_safe_local(path)) {
|
|
r.Error(ACK_ERROR_ARG, "Malformed path");
|
|
return CommandResult::ERROR;
|
|
}
|
|
}
|
|
|
|
UpdateService *update = client.partition.instance.update;
|
|
if (update != nullptr)
|
|
return handle_update(r, *update, path, discard);
|
|
|
|
Database *db = client.partition.instance.database;
|
|
if (db != nullptr)
|
|
return handle_update(r, *db, path, discard);
|
|
#else
|
|
(void)args;
|
|
(void)discard;
|
|
#endif
|
|
|
|
r.Error(ACK_ERROR_NO_EXIST, "No database");
|
|
return CommandResult::ERROR;
|
|
}
|
|
|
|
CommandResult
|
|
handle_update(Client &client, Request args, gcc_unused Response &r)
|
|
{
|
|
return handle_update(client, args, r, false);
|
|
}
|
|
|
|
CommandResult
|
|
handle_rescan(Client &client, Request args, Response &r)
|
|
{
|
|
return handle_update(client, args, r, true);
|
|
}
|
|
|
|
CommandResult
|
|
handle_setvol(Client &client, Request args, Response &r)
|
|
{
|
|
unsigned level;
|
|
if (!args.Parse(0, level, r, 100))
|
|
return CommandResult::ERROR;
|
|
|
|
if (!volume_level_change(client.partition.outputs, level)) {
|
|
r.Error(ACK_ERROR_SYSTEM, "problems setting volume");
|
|
return CommandResult::ERROR;
|
|
}
|
|
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
CommandResult
|
|
handle_volume(Client &client, Request args, Response &r)
|
|
{
|
|
int relative;
|
|
if (!args.Parse(0, relative, r, -100, 100))
|
|
return CommandResult::ERROR;
|
|
|
|
const int old_volume = volume_level_get(client.partition.outputs);
|
|
if (old_volume < 0) {
|
|
r.Error(ACK_ERROR_SYSTEM, "No mixer");
|
|
return CommandResult::ERROR;
|
|
}
|
|
|
|
int new_volume = old_volume + relative;
|
|
if (new_volume < 0)
|
|
new_volume = 0;
|
|
else if (new_volume > 100)
|
|
new_volume = 100;
|
|
|
|
if (new_volume != old_volume &&
|
|
!volume_level_change(client.partition.outputs, new_volume)) {
|
|
r.Error(ACK_ERROR_SYSTEM, "problems setting volume");
|
|
return CommandResult::ERROR;
|
|
}
|
|
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
CommandResult
|
|
handle_stats(Client &client, gcc_unused Request args, Response &r)
|
|
{
|
|
stats_print(r, client.partition);
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
CommandResult
|
|
handle_ping(gcc_unused Client &client, gcc_unused Request args,
|
|
gcc_unused Response &r)
|
|
{
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
CommandResult
|
|
handle_password(Client &client, Request args, Response &r)
|
|
{
|
|
unsigned permission = 0;
|
|
if (getPermissionFromPassword(args.front(), &permission) < 0) {
|
|
r.Error(ACK_ERROR_PASSWORD, "incorrect password");
|
|
return CommandResult::ERROR;
|
|
}
|
|
|
|
client.SetPermission(permission);
|
|
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
CommandResult
|
|
handle_config(Client &client, gcc_unused Request args, Response &r)
|
|
{
|
|
if (!client.IsLocal()) {
|
|
r.Error(ACK_ERROR_PERMISSION,
|
|
"Command only permitted to local clients");
|
|
return CommandResult::ERROR;
|
|
}
|
|
|
|
#ifdef ENABLE_DATABASE
|
|
const Storage *storage = client.GetStorage();
|
|
if (storage != nullptr) {
|
|
const auto path = storage->MapUTF8("");
|
|
r.Format("music_directory: %s\n", path.c_str());
|
|
}
|
|
#endif
|
|
|
|
return CommandResult::OK;
|
|
}
|
|
|
|
CommandResult
|
|
handle_idle(Client &client, Request args, Response &r)
|
|
{
|
|
unsigned flags = 0;
|
|
for (const char *i : args) {
|
|
unsigned event = idle_parse_name(i);
|
|
if (event == 0) {
|
|
r.FormatError(ACK_ERROR_ARG,
|
|
"Unrecognized idle event: %s", i);
|
|
return CommandResult::ERROR;
|
|
}
|
|
|
|
flags |= event;
|
|
}
|
|
|
|
/* No argument means that the client wants to receive everything */
|
|
if (flags == 0)
|
|
flags = ~0;
|
|
|
|
/* enable "idle" mode on this client */
|
|
client.IdleWait(flags);
|
|
|
|
return CommandResult::IDLE;
|
|
}
|