mopidy/mopidy/files/library.py

140 lines
5.2 KiB
Python

from __future__ import unicode_literals
import logging
import operator
import os
import sys
import urllib2
from mopidy import backend, exceptions, models
from mopidy.audio import scan, utils
from mopidy.internal import path
logger = logging.getLogger(__name__)
class FilesLibraryProvider(backend.LibraryProvider):
"""Library for browsing local files."""
# TODO: get_images that can pull from metadata and/or .folder.png etc?
# TODO: handle playlists?
@property
def root_directory(self):
if not self._media_dirs:
return None
elif len(self._media_dirs) == 1:
local_path = self._media_dirs[0]['path']
uri = path.path_to_uri(local_path)
else:
uri = 'file:root'
return models.Ref.directory(name='Files', uri=uri)
def __init__(self, backend, config):
super(FilesLibraryProvider, self).__init__(backend)
self._media_dirs = list(self._get_media_dirs(config))
self._follow_symlinks = config['files']['follow_symlinks']
self._show_dotfiles = config['files']['show_dotfiles']
self._scanner = scan.Scanner(
timeout=config['files']['metadata_timeout'])
def browse(self, uri):
logger.debug('Browsing files at: %s', uri)
result = []
local_path = path.uri_to_path(uri)
if local_path == 'root':
return list(self._get_media_dirs_refs())
for dir_entry in os.listdir(local_path):
child_path = os.path.join(local_path, dir_entry)
uri = path.path_to_uri(child_path)
printable_path = child_path.decode(sys.getfilesystemencoding(),
'ignore')
if os.path.islink(child_path) and not self._follow_symlinks:
logger.debug('Ignoring symlink: %s', printable_path)
continue
if not self._is_in_basedir(os.path.realpath(child_path)):
logger.debug('Ignoring symlink to outside base dir: %s',
printable_path)
continue
if not self._show_dotfiles and dir_entry.startswith(b'.'):
continue
dir_entry = dir_entry.decode(sys.getfilesystemencoding(), 'replace')
if os.path.isdir(child_path):
result.append(models.Ref.directory(name=dir_entry, uri=uri))
elif os.path.isfile(child_path):
if self._is_audiofile(uri):
result.append(models.Ref.track(name=dir_entry, uri=uri))
else:
logger.debug('Ignoring non-audiofile: %s', printable_path)
result.sort(key=operator.attrgetter('name'))
return result
def lookup(self, uri):
logger.debug('looking up uri = %s', uri)
local_path = path.uri_to_path(uri)
if not self._is_in_basedir(local_path):
logger.warn('Ignoring URI outside base dir: %s', local_path)
return []
try:
result = self._scanner.scan(uri)
track = utils.convert_tags_to_track(result.tags).copy(
uri=uri, length=result.duration)
except exceptions.ScannerError as e:
logger.warning('Problem looking up %s: %s', uri, e)
track = models.Track(uri=uri)
if not track.name:
filename = os.path.basename(local_path)
name = urllib2.unquote(filename).decode(
sys.getfilesystemencoding(), 'ignore')
track = track.copy(name=name)
return [track]
def _get_media_dirs(self, config):
for entry in config['files']['media_dirs']:
media_dir = {}
media_dir_split = entry.split('|', 1)
local_path = path.expand_path(
media_dir_split[0].encode(sys.getfilesystemencoding()))
if not local_path:
logger.warn('Could not expand path %s', media_dir_split[0])
continue
elif not os.path.isdir(local_path):
logger.warn('%s is not a directory', local_path)
continue
media_dir['path'] = local_path
if len(media_dir_split) == 2:
media_dir['name'] = media_dir_split[1]
else:
media_dir['name'] = media_dir_split[0].replace(os.sep, '+')
yield media_dir
def _get_media_dirs_refs(self):
for media_dir in self._media_dirs:
yield models.Ref.directory(
name=media_dir['name'],
uri=path.path_to_uri(media_dir['path']))
def _is_audiofile(self, uri):
try:
result = self._scanner.scan(uri)
logger.debug('got scan result playable: %s for %s',
result.uri, str(result.playable))
return result.playable
except exceptions.ScannerError as e:
logger.warning('Problem scanning %s: %s', uri, e)
return False
def _is_in_basedir(self, local_path):
res = False
base_dirs = [mdir['path'] for mdir in self._media_dirs]
for base_dir in base_dirs:
if path.is_path_inside_base_dir(local_path, base_dir):
res = True
if not res:
logger.warn('%s not inside any base_dir', local_path)
return res