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import sys |
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import codecs |
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import os.path |
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from browsepy.compat import range, PY_LEGACY |
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from browsepy.file import Node, File, Directory, \ |
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underscore_replace, check_under_base |
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if PY_LEGACY: |
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import ConfigParser as configparser |
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else: |
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import configparser |
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ConfigParserBase = ( |
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configparser.SafeConfigParser |
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if hasattr(configparser, 'SafeConfigParser') else |
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configparser.ConfigParser |
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) |
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extensions = { |
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'mp3': 'audio/mpeg', |
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'ogg': 'audio/ogg', |
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'wav': 'audio/wav', |
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'm3u': 'audio/x-mpegurl', |
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'm3u8': 'audio/x-mpegurl', |
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'pls': 'audio/x-scpls', |
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} |
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ini_parser_base = ( |
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configparser.SafeConfigParser |
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if hasattr(configparser, 'SafeConfigParser') else |
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configparser.ConfigParser |
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) |
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class PLSFileParser(ConfigParserBase): |
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''' |
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ConfigParser class accepting fallback on get for convenience. |
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''' |
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NOT_SET = type('NotSetType', (object,), {}) |
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def getint(self, section, key, fallback=NOT_SET, **kwargs): |
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try: |
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return super(PLSFileParser, self).getint(section, key, **kwargs) |
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except (configparser.NoOptionError, ValueError): |
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if fallback is self.NOT_SET: |
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raise |
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return fallback |
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def get(self, section, key, fallback=NOT_SET, **kwargs): |
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try: |
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return super(PLSFileParser, self).get(section, key, **kwargs) |
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except (configparser.NoOptionError, ValueError): |
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if fallback is self.NOT_SET: |
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raise |
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return fallback |
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class PlayableFile(File): |
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media_map = { |
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'audio/mpeg': 'mp3', |
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'audio/ogg': 'ogg', |
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'audio/wav': 'wav' |
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} |
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mimetypes = tuple(media_map) |
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def __init__(self, **kwargs): |
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self.duration = kwargs.pop('duration', None) |
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self.title = kwargs.pop('title', None) |
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super(PlayableFile, self).__init__(**kwargs) |
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@property |
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def title(self): |
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return self._title or self.name |
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@title.setter |
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def title(self, title): |
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self._title = title |
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@property |
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def media_format(self): |
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return self.media_map[self.type] |
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class PlayListFile(Directory): |
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playable_class = PlayableFile |
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mimetypes = ('audio/x-mpegurl', 'audio/x-scpls') |
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sortkey = None # disables listdir sorting |
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@classmethod |
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def from_urlpath(cls, path, app=None): |
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original = Node.from_urlpath(path, app) |
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if original.mimetype == PlayableDirectory.mimetype: |
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return PlayableDirectory(original.path, original.app) |
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elif original.mimetype == M3UFile.mimetype: |
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return M3UFile(original.path, original.app) |
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if original.mimetype == PLSFile.mimetype: |
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return PLSFile(original.path, original.app) |
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return original |
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def normalize_playable_path(self, path): |
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if '://' in path: |
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return path |
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if not os.path.isabs(path): |
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return os.path.normpath(os.path.join(self.parent.path, path)) |
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if check_under_base(path, self.app.config['directory_base']): |
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return os.path.normpath(path) |
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return None |
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def _entries(self): |
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return |
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yield |
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def _listdir(self): |
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for file in self._entries(): |
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if detect_playable_mimetype(file.path): |
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yield file |
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class PLSFile(PlayListFile): |
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ini_parser_class = PLSFileParser |
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maxsize = getattr(sys, 'maxsize', None) or getattr(sys, 'maxint', None) |
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mimetype = 'audio/x-scpls' |
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def _entries(self): |
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parser = self.ini_parser_class() |
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parser.read(self.path) |
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maxsize = parser.getint('playlist', 'NumberOfEntries', None) |
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for i in range(1, (self.maxsize if maxsize is None else maxsize) + 1): |
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path = parser.get('playlist', 'File%d' % i, None) |
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if not path: |
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if maxsize: |
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continue |
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break |
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path = self.normalize_playable_path(path) |
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if not path: |
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continue |
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yield self.playable_class( |
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path=path, |
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app=self.app, |
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duration=parser.getint( |
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'playlist', 'Length%d' % i, |
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None |
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), |
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title=parser.get( |
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'playlist', |
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'Title%d' % i, |
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None |
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), |
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) |
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class M3UFile(PlayListFile): |
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mimetype = 'audio/x-mpegurl' |
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def _iter_lines(self): |
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prefix = '#EXTM3U\n' |
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encoding = 'utf-8' if self.path.endswith('.m3u8') else 'ascii' |
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with codecs.open( |
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self.path, 'r', |
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encoding=encoding, |
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errors=underscore_replace |
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) as f: |
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if f.read(len(prefix)) != prefix: |
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f.seek(0) |
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for line in f: |
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line = line.rstrip('\n') |
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if line: |
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yield line |
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def _entries(self): |
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data = {} |
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for line in self._iter_lines(): |
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if line.startswith('#EXTINF:'): |
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duration, title = line.split(',', 1) |
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data['duration'] = None if duration == '-1' else int(duration) |
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data['title'] = title |
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if not line: |
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continue |
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path = self.normalize_playable_path(line) |
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if path: |
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yield self.playable_class(path=path, app=self.app, **data) |
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data.clear() |
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class PlayableDirectory(Directory): |
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@classmethod |
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def detect(cls, node): |
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if node.is_directory: |
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for file in node._listdir(): |
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if file.name.rsplit('.', 1)[-1] in extensions: |
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return True |
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return False |
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def _listdir(self): |
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for file in super(PlayableDirectory, self)._listdir(): |
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if detect_playable_mimetype(file.path): |
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yield file |
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def detect_playable_mimetype(path, os_sep=os.sep): |
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basename = path.rsplit(os_sep)[-1] |
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if '.' in basename: |
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ext = basename.rsplit('.')[-1] |
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return extensions.get(ext, None) |
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return None |
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ergoithz /
browsepy
