PlayableDirectory.entries() - Code Metrics - Inspection of "implement jplayer playlist" - ergoithz/browsepy - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Branch — dev-4.1 (d7c5dd)

by Felipe A.

created 2016-10-26 16:16 UTC

PlayableDirectory.entries() A

↳ Parent: PlayableDirectory

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	3
dl	0
loc	4
rs	10
c	0
b	0
f	0


import sys
import codecs
import os.path

from browsepy.compat import range, PY_LEGACY
from browsepy.file import Node, File, Directory, \
                          underscore_replace, check_under_base


if PY_LEGACY:
    import ConfigParser as configparser
else:
    import configparser

ConfigParserBase = (
    configparser.SafeConfigParser
    if hasattr(configparser, 'SafeConfigParser') else
    configparser.ConfigParser
    )


class PLSFileParser(object):
    '''
    ConfigParser wrapper accepting fallback on get for convenience.

    This wraps instead of inheriting due ConfigParse being classobj on python2.
    '''
    NOT_SET = type('NotSetType', (object,), {})
    parser_class = (
        configparser.SafeConfigParser
        if hasattr(configparser, 'SafeConfigParser') else
        configparser.ConfigParser
        )

    def __init__(self, path):
        self._parser = self.parser_class()
        self._parser.read(path)

    def getint(self, section, key, fallback=NOT_SET):
        try:
            return self._parser.getint(section, key)
        except (configparser.NoOptionError, ValueError):
            if fallback is self.NOT_SET:
                raise
            return fallback

    def get(self, section, key, fallback=NOT_SET):
        try:
            return self._parser.get(section, key)
        except (configparser.NoOptionError, ValueError):
            if fallback is self.NOT_SET:
                raise
            return fallback


class PlayableFile(File):
    media_map = {
        'audio/mpeg': 'mp3',
        'audio/ogg': 'ogg',
        'audio/wav': 'wav'
    }
    extensions = {
        'mp3': 'audio/mpeg',
        'ogg': 'audio/ogg',
        'wav': 'audio/wav',
    }
    mimetypes = tuple(frozenset(extensions.values()))

    def __init__(self, **kwargs):
        self.duration = kwargs.pop('duration', None)
        self.title = kwargs.pop('title', None)
        super(PlayableFile, self).__init__(**kwargs)

    @property
    def title(self):
        return self._title or self.name

    @title.setter
    def title(self, title):
        self._title = title

    @property
    def media_format(self):
        return self.media_map[self.type]


class PlayListFile(File):
    playable_class = PlayableFile
    extensions = {
        'm3u': 'audio/x-mpegurl',
        'm3u8': 'audio/x-mpegurl',
        'pls': 'audio/x-scpls',
    }
    mimetypes = tuple(frozenset(extensions.values()))

    @classmethod
    def from_urlpath(cls, path, app=None):
        original = Node.from_urlpath(path, app)
        if original.mimetype == PlayableDirectory.mimetype:
            return PlayableDirectory(original.path, original.app)
        elif original.mimetype == M3UFile.mimetype:
            return M3UFile(original.path, original.app)
        if original.mimetype == PLSFile.mimetype:
            return PLSFile(original.path, original.app)
        return original

    def normalize_playable_path(self, path):
        if '://' in path:
            return path
        if not os.path.isabs(path):
            return os.path.normpath(os.path.join(self.parent.path, path))
        if check_under_base(path, self.app.config['directory_base']):
            return os.path.normpath(path)
        return None

    def _entries(self):
        return
        yield

    def entries(self):
        for file in self._entries():
            if detect_audio_mimetype(file.path):
                yield file


class PLSFile(PlayListFile):
    ini_parser_class = PLSFileParser
    maxsize = getattr(sys, 'maxsize', None) or getattr(sys, 'maxint', None)
    mimetype = 'audio/x-scpls'

    def _entries(self):
        parser = self.ini_parser_class(self.path)
        maxsize = parser.getint('playlist', 'NumberOfEntries', None)
        for i in range(1, self.maxsize if maxsize is None else maxsize + 1):
            path = parser.get('playlist', 'File%d' % i, None)
            if not path:
                if maxsize:
                    continue
                break
            path = self.normalize_playable_path(path)
            if not path:
                continue
            yield self.playable_class(
                path=path,
                app=self.app,
                duration=parser.getint(
                    'playlist', 'Length%d' % i,
                    None
                    ),
                title=parser.get(
                    'playlist',
                    'Title%d' % i,
                    None
                    ),
                )


class M3UFile(PlayListFile):
    mimetype = 'audio/x-mpegurl'

    def _iter_lines(self):
        prefix = '#EXTM3U\n'
        encoding = 'utf-8' if self.path.endswith('.m3u8') else 'ascii'
        with codecs.open(
          self.path, 'r',
          encoding=encoding,
          errors=underscore_replace
          ) as f:
            if f.read(len(prefix)) != prefix:
                f.seek(0)
            for line in f:
                line = line.rstrip('\n')
                if line:
                    yield line

    def _entries(self):
        data = {}
        for line in self._iter_lines():
            if line.startswith('#EXTINF:'):
                duration, title = line.split(',', 1)
                data['duration'] = None if duration == '-1' else int(duration)
                data['title'] = title
            if not line:
                continue
            path = self.normalize_playable_path(line)
            if path:
                yield self.playable_class(path=path, app=self.app, **data)
            data.clear()


class PlayableDirectory(Directory):
    file_class = PlayableFile

    @classmethod
    def detect(cls, node):
        if node.is_directory:
            for file in node._listdir():
                if detect_audio_mimetype(file.path):
                    return True
        return False

    def entries(self):
        for file in super(PlayableDirectory, self)._listdir():
            if detect_audio_mimetype(file.path):
                yield file


def detect_playable_mimetype(path, os_sep=os.sep):
    return (
        detect_audio_mimetype(path, os_sep) or
        detect_playlist_mimetype(path, os_sep)
        )


def detect_audio_mimetype(path, os_sep=os.sep):
    basename = path.rsplit(os_sep)[-1]
    if '.' in basename:
        ext = basename.rsplit('.')[-1]
        return PlayableFile.extensions.get(ext, None)
    return None


def detect_playlist_mimetype(path, os_sep=os.sep):
    basename = path.rsplit(os_sep)[-1]
    if '.' in basename:
        ext = basename.rsplit('.')[-1]
        return PlayListFile.extensions.get(ext, None)
    return None


1
2			import sys
3			import codecs
4			import os.path
5
6			from browsepy.compat import range, PY_LEGACY
7			from browsepy.file import Node, File, Directory, \
8			underscore_replace, check_under_base
9
10
11			if PY_LEGACY:
12			import ConfigParser as configparser
13			else:
14			import configparser
15
16			ConfigParserBase = (
17			configparser.SafeConfigParser
18			if hasattr(configparser, 'SafeConfigParser') else
19			configparser.ConfigParser
20			)
21
22
23			class PLSFileParser(object):
24			'''
25			ConfigParser wrapper accepting fallback on get for convenience.
26
27			This wraps instead of inheriting due ConfigParse being classobj on python2.
28			'''
29			NOT_SET = type('NotSetType', (object,), {})
30			parser_class = (
31			configparser.SafeConfigParser
32			if hasattr(configparser, 'SafeConfigParser') else
33			configparser.ConfigParser
34			)
35
36			def __init__(self, path):
37			self._parser = self.parser_class()
38			self._parser.read(path)
39
40			def getint(self, section, key, fallback=NOT_SET):
41			try:
42			return self._parser.getint(section, key)
43			except (configparser.NoOptionError, ValueError):
44			if fallback is self.NOT_SET:
45			raise
46			return fallback
47
48			def get(self, section, key, fallback=NOT_SET):
49			try:
50			return self._parser.get(section, key)
51			except (configparser.NoOptionError, ValueError):
52			if fallback is self.NOT_SET:
53			raise
54			return fallback
55
56
57			class PlayableFile(File):
58			media_map = {
59			'audio/mpeg': 'mp3',
60			'audio/ogg': 'ogg',
61			'audio/wav': 'wav'
62			}
63			extensions = {
64			'mp3': 'audio/mpeg',
65			'ogg': 'audio/ogg',
66			'wav': 'audio/wav',
67			}
68			mimetypes = tuple(frozenset(extensions.values()))
69
70			def __init__(self, **kwargs):
71			self.duration = kwargs.pop('duration', None)
72			self.title = kwargs.pop('title', None)
73			super(PlayableFile, self).__init__(**kwargs)
74
75			@property
76			def title(self):
77			return self._title or self.name
78
79			@title.setter
80			def title(self, title):
81			self._title = title
82
83			@property
84			def media_format(self):
85			return self.media_map[self.type]
86
87
88			class PlayListFile(File):
89			playable_class = PlayableFile
90			extensions = {
91			'm3u': 'audio/x-mpegurl',
92			'm3u8': 'audio/x-mpegurl',
93			'pls': 'audio/x-scpls',
94			}
95			mimetypes = tuple(frozenset(extensions.values()))
96
97			@classmethod
98			def from_urlpath(cls, path, app=None):
99			original = Node.from_urlpath(path, app)
100			if original.mimetype == PlayableDirectory.mimetype:
101			return PlayableDirectory(original.path, original.app)
102			elif original.mimetype == M3UFile.mimetype:
103			return M3UFile(original.path, original.app)
104			if original.mimetype == PLSFile.mimetype:
105			return PLSFile(original.path, original.app)
106			return original
107
108			def normalize_playable_path(self, path):
109			if '://' in path:
110			return path
111			if not os.path.isabs(path):
112			return os.path.normpath(os.path.join(self.parent.path, path))
113			if check_under_base(path, self.app.config['directory_base']):
114			return os.path.normpath(path)
115			return None
116
117			def _entries(self):
118			return
119			yield
120
121			def entries(self):
122			for file in self._entries():
123			if detect_audio_mimetype(file.path):
124			yield file
125
126
127			class PLSFile(PlayListFile):
128			ini_parser_class = PLSFileParser
129			maxsize = getattr(sys, 'maxsize', None) or getattr(sys, 'maxint', None)
130			mimetype = 'audio/x-scpls'
131
132			def _entries(self):
133			parser = self.ini_parser_class(self.path)
134			maxsize = parser.getint('playlist', 'NumberOfEntries', None)
135			for i in range(1, self.maxsize if maxsize is None else maxsize + 1):
136			path = parser.get('playlist', 'File%d' % i, None)
137			if not path:
138			if maxsize:
139			continue
140			break
141			path = self.normalize_playable_path(path)
142			if not path:
143			continue
144			yield self.playable_class(
145			path=path,
146			app=self.app,
147			duration=parser.getint(
148			'playlist', 'Length%d' % i,
149			None
150			),
151			title=parser.get(
152			'playlist',
153			'Title%d' % i,
154			None
155			),
156			)
157
158
159			class M3UFile(PlayListFile):
160			mimetype = 'audio/x-mpegurl'
161
162			def _iter_lines(self):
163			prefix = '#EXTM3U\n'
164			encoding = 'utf-8' if self.path.endswith('.m3u8') else 'ascii'
165			with codecs.open(
166			self.path, 'r',
167			encoding=encoding,
168			errors=underscore_replace
169			) as f:
170			if f.read(len(prefix)) != prefix:
171			f.seek(0)
172			for line in f:
173			line = line.rstrip('\n')
174			if line:
175			yield line
176
177			def _entries(self):
178			data = {}
179			for line in self._iter_lines():
180			if line.startswith('#EXTINF:'):
181			duration, title = line.split(',', 1)
182			data['duration'] = None if duration == '-1' else int(duration)
183			data['title'] = title
184			if not line:
185			continue
186			path = self.normalize_playable_path(line)
187			if path:
188			yield self.playable_class(path=path, app=self.app, **data)
189			data.clear()
190
191
192			class PlayableDirectory(Directory):
193			file_class = PlayableFile
194
195			@classmethod
196			def detect(cls, node):
197			if node.is_directory:
198			for file in node._listdir():
199			if detect_audio_mimetype(file.path):
200			return True
201			return False
202
203			def entries(self):
204			for file in super(PlayableDirectory, self)._listdir():
205			if detect_audio_mimetype(file.path):
206			yield file
207
208
209			def detect_playable_mimetype(path, os_sep=os.sep):
210			return (
211			detect_audio_mimetype(path, os_sep) or
212			detect_playlist_mimetype(path, os_sep)
213			)
214
215
216			def detect_audio_mimetype(path, os_sep=os.sep):
217			basename = path.rsplit(os_sep)[-1]
218			if '.' in basename:
219			ext = basename.rsplit('.')[-1]
220			return PlayableFile.extensions.get(ext, None)
221			return None
222
223
224			def detect_playlist_mimetype(path, os_sep=os.sep):
225			basename = path.rsplit(os_sep)[-1]
226			if '.' in basename:
227			ext = basename.rsplit('.')[-1]
228			return PlayListFile.extensions.get(ext, None)
229			return None
230

ergoithz / browsepy

Branch — dev-4.1 (d7c5dd)

PlayableDirectory.entries() A

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