[neteasemusic] Add new extractor for music.163.com

1 files changed, 434 insertions, 0 deletions

diff --git a/youtube_dl/extractor/neteasemusic.py b/youtube_dl/extractor/neteasemusic.py
new file mode 100644
index 000000000..ebed5d3b4
--- /dev/null
+++ b/youtube_dl/extractor/neteasemusic.py
@@ -0,0 +1,434 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+from hashlib import md5
+from datetime import datetime
+import itertools
+import re
+
+from .common import InfoExtractor
+from ..compat import (
+    compat_urllib_request,
+    compat_urllib_parse,
+)
+
+
+class NetEaseMusicBaseIE(InfoExtractor):
+    _FORMATS = ['bMusic', 'mMusic', 'hMusic']
+    _NETEASE_SALT = '3go8&$8*3*3h0k(2)2'
+    _API_BASE = 'http://music.163.com/api/'
+
+    @classmethod
+    def _encrypt(cls, dfsid):
+        salt_bytes = bytearray(str(cls._NETEASE_SALT))
+        string_bytes = bytearray(str(dfsid))
+        salt_len = len(salt_bytes)
+        for i in xrange(len(string_bytes)):
+            string_bytes[i] = string_bytes[i] ^ salt_bytes[i % salt_len]
+        m = md5()
+        m.update(string_bytes)
+        result = m.digest().encode('base64')[:-1]
+        return result.replace('/', '_').replace('+', '-')
+
+    @classmethod
+    def extract_formats(cls, info):
+        formats = []
+        for song_format in cls._FORMATS:
+            details = info.get(song_format)
+            if not details:
+                continue
+            formats.append({
+                'url': 'http://m1.music.126.net/%s/%s.%s' %
+                       (cls._encrypt(details['dfsId']), details['dfsId'],
+                        details['extension']),
+                'ext': details['extension'],
+                'abr': details['bitrate'] / 1000,
+                'preference': details['bitrate'],
+                'format_id': song_format,
+                'filesize': details['size'],
+                'asr': details['sr']
+            })
+        return formats
+
+    def query_api(self, endpoint, video_id, note):
+        req = compat_urllib_request.Request('%s%s' % (self._API_BASE, endpoint))
+        req.add_header('Referer', self._API_BASE)
+        return self._download_json(req, video_id, note)
+
+
+class NetEaseMusicIE(NetEaseMusicBaseIE):
+    IE_NAME = 'netease:song'
+    _VALID_URL = r'https?://music\.163\.com/(#/)?song\?id=(?P<id>[0-9]+)'
+    _TESTS = [{
+        'url': 'http://music.163.com/#/song?id=32102397',
+        'md5': 'f2e97280e6345c74ba9d5677dd5dcb45',
+        'info_dict': {
+            'id': '32102397',
+            'ext': 'mp3',
+            'title': 'Bad Blood (feat. Kendrick Lamar)',
+            'creator': 'Taylor Swift / Kendrick Lamar',
+            'upload_date': '20150517',
+            'timestamp': 1431878400,
+            'description': 'md5:a10a54589c2860300d02e1de821eb2ef',
+        },
+    }, {
+        'note': 'No lyrics translation.',
+        'url': 'http://music.163.com/#/song?id=29822014',
+        'info_dict': {
+            'id': '29822014',
+            'ext': 'mp3',
+            'title': '听见下雨的声音',
+            'creator': '周杰伦',
+            'upload_date': '20141225',
+            'timestamp': 1419523200,
+            'description': 'md5:a4d8d89f44656af206b7b2555c0bce6c',
+        },
+    }, {
+        'note': 'No lyrics.',
+        'url': 'http://music.163.com/song?id=17241424',
+        'info_dict': {
+            'id': '17241424',
+            'ext': 'mp3',
+            'title': 'Opus 28',
+            'creator': 'Dustin O\'Halloran',
+            'upload_date': '20080211',
+            'timestamp': 1202745600,
+        },
+    }]
+
+    def _process_lyrics(self, lyrics_info):
+        original = lyrics_info.get('lrc', {}).get('lyric')
+        translated = lyrics_info.get('tlyric', {}).get('lyric')
+
+        if not translated:
+            return original
+
+        lyrics_expr = r'(\[[0-9]{2}:[0-9]{2}\.[0-9]{2,}\])([^\n]+)'
+        original_ts_texts = re.findall(lyrics_expr, original)
+        translation_ts_dict = {
+            time_stamp: text for time_stamp, text in re.findall(lyrics_expr, translated)
+        }
+
+        lyrics = '\n'.join([
+            '%s%s / %s' % (time_stamp, text, translation_ts_dict.get(time_stamp, ''))
+            for time_stamp, text in original_ts_texts
+        ])
+        return lyrics
+
+    def _real_extract(self, url):
+        song_id = self._match_id(url)
+
+        params = {
+            'id': song_id,
+            'ids': '[%s]' % song_id
+        }
+        info = self.query_api(
+            'song/detail?' + compat_urllib_parse.urlencode(params),
+            song_id, 'Downloading song info')['songs'][0]
+
+        formats = self.extract_formats(info)
+        self._sort_formats(formats)
+
+        lyrics_info = self.query_api(
+            'song/lyric?id=%s&lv=-1&tv=-1' % song_id, 
+            song_id, 'Downloading lyrics data')
+        lyrics = self._process_lyrics(lyrics_info)
+
+        alt_title = None
+        if info.get('alias'):
+            alt_title = '/'.join(info.get('alias'))
+
+        return {
+            'id': song_id,
+            'title': info['name'],
+            'alt_title': alt_title,
+            'creator': ' / '.join([artist['name'] for artist in info.get('artists', [])]),
+            'timestamp': int(info.get('album', {}).get('publishTime')/1000),
+            'thumbnail': info.get('album', {}).get('picUrl'),
+            'duration': int(info.get('duration', 0)/1000),
+            'description': lyrics,
+            'formats': formats,
+        }
+
+
+class NetEaseMusicAlbumIE(NetEaseMusicBaseIE):
+    IE_NAME = 'netease:album'
+    _VALID_URL = r'https?://music\.163\.com/(#/)?album\?id=(?P<id>[0-9]+)'
+    _TEST = {
+        'url': 'http://music.163.com/#/album?id=220780',
+        'info_dict': {
+            'id': '220780',
+            'title': 'B\'day',
+        },
+        'playlist_count': 23,
+    }
+
+    def _real_extract(self, url):
+        album_id = self._match_id(url)
+
+        info = self.query_api(
+            'album/%s?id=%s' % (album_id, album_id), 
+            album_id, 'Downloading album data')['album']
+
+        name = info['name']
+        desc = info.get('description')
+        entries = [
+            self.url_result('http://music.163.com/#/song?id=%s' % song['id'],
+                            'NetEaseMusic', song['id'])
+            for song in info['songs']
+        ]
+        return self.playlist_result(entries, album_id, name, desc)
+
+
+class NetEaseMusicSingerIE(NetEaseMusicBaseIE):
+    IE_NAME = 'netease:singer'
+    _VALID_URL = r'https?://music\.163\.com/(#/)?artist\?id=(?P<id>[0-9]+)'
+    _TESTS = [{
+        'note': 'Singer has aliases.',
+        'url': 'http://music.163.com/#/artist?id=10559',
+        'info_dict': {
+            'id': '10559',
+            'title': '张惠妹 - aMEI;阿密特',
+        },
+        'playlist_count': 50,
+    }, {
+        'note': 'Singer has translated name.',
+        'url': 'http://music.163.com/#/artist?id=124098',
+        'info_dict': {
+            'id': '124098',
+            'title': '李昇基 - 이승기',
+        },
+        'playlist_count': 50,
+    }]
+
+    def _real_extract(self, url):
+        singer_id = self._match_id(url)
+
+        info = self.query_api(
+            'artist/%s?id=%s' % (singer_id, singer_id), 
+            singer_id, 'Downloading singer data')
+
+        name = info['artist']['name']
+        if info['artist']['trans']:
+            name = '%s - %s' % (name, info['artist']['trans'])
+        if info['artist']['alias']:
+            name = '%s - %s' % (name, ";".join(info['artist']['alias']))
+
+        entries = [
+            self.url_result('http://music.163.com/#/song?id=%s' % song['id'],
+                            'NetEaseMusic', song['id'])
+            for song in info['hotSongs']
+        ]
+        return self.playlist_result(entries, singer_id, name)
+
+
+class NetEaseMusicListIE(NetEaseMusicBaseIE):
+    IE_NAME = 'netease:playlist'
+    _VALID_URL = r'https?://music\.163\.com/(#/)?(playlist|discover/toplist)\?id=(?P<id>[0-9]+)'
+    _TESTS = [{
+        'url': 'http://music.163.com/#/playlist?id=79177352',
+        'info_dict': {
+            'id': '79177352',
+            'title': 'Billboard 2007 Top 100',
+            'description': 'md5:12fd0819cab2965b9583ace0f8b7b022'
+        },
+        'playlist_count': 99,
+    }, {
+        'note': 'Toplist/Charts sample',
+        'url': 'http://music.163.com/#/discover/toplist?id=3733003',
+        'info_dict': {
+            'id': '3733003',
+            'title': 're:韩国Melon排行榜周榜 [0-9]{4}-[0-9]{2}-[0-9]{2}',
+            'description': 'md5:73ec782a612711cadc7872d9c1e134fc',
+        },
+        'playlist_count': 50,
+    }]
+
+    def _real_extract(self, url):
+        list_id = self._match_id(url)
+
+        info = self.query_api(
+            'playlist/detail?id=%s&lv=-1&tv=-1' % list_id, 
+            list_id, 'Downloading playlist data')['result']
+
+        name = info['name']
+        desc = info.get('description')
+
+        if info.get('specialType') == 10:  # is a chart/toplist
+            datestamp = datetime.fromtimestamp(info['updateTime']/1000).strftime('%Y-%m-%d')
+            name = '%s %s' % (name, datestamp)
+
+        entries = [
+            self.url_result('http://music.163.com/#/song?id=%s' % song['id'],
+                            'NetEaseMusic', song['id'])
+            for song in info['tracks']
+        ]
+        return self.playlist_result(entries, list_id, name, desc)
+
+
+class NetEaseMusicMvIE(NetEaseMusicBaseIE):
+    IE_NAME = 'netease:mv'
+    _VALID_URL = r'https?://music\.163\.com/(#/)?mv\?id=(?P<id>[0-9]+)'
+    _TEST = {
+        'url': 'http://music.163.com/#/mv?id=415350',
+        'info_dict': {
+            'id': '415350',
+            'ext': 'mp4',
+            'title': '이럴거면 그러지말지',
+            'description': '白雅言自作曲唱甜蜜爱情',
+            'creator': '白雅言',
+            'upload_date': '20150520',
+        },
+    }
+
+    def _real_extract(self, url):
+        mv_id = self._match_id(url)
+
+        info = self.query_api(
+            'mv/detail?id=%s&type=mp4' % mv_id,
+            mv_id, 'Downloading mv info')['data']
+
+        formats = [
+            {'url': mv_url, 'ext': 'mp4', 'format_id': '%sp' % brs, 'preference': int(brs)}
+            for brs, mv_url in info['brs'].items()
+        ]
+        self._sort_formats(formats)
+
+        return {
+            'id': mv_id,
+            'title': info['name'],
+            'description': info.get('desc') or info.get('briefDesc'),
+            'creator': info['artistName'],
+            'upload_date': info['publishTime'].replace('-', ''),
+            'formats': formats,
+            'thumbnail': info.get('cover'),
+            'duration': int(info.get('duration', 0)/1000),
+        }
+
+
+class NetEaseMusicProgramIE(NetEaseMusicBaseIE):
+    IE_NAME = 'netease:program'
+    _VALID_URL = r'https?://music\.163\.com/(#/?)program\?id=(?P<id>[0-9]+)'
+    _TESTS = [{
+        'url': 'http://music.163.com/#/program?id=10109055',
+        'info_dict': {
+            'id': '10109055',
+            'ext': 'mp3',
+            'title': '不丹足球背后的故事',
+            'description': '喜马拉雅人的足球梦 ...',
+            'creator': '大话西藏',
+            'timestamp': 1434179341,
+            'upload_date': '20150613',
+            'duration': 900,
+        },
+    }, {
+        'note': 'This program has accompanying songs.',
+        'url': 'http://music.163.com/#/program?id=10141022',
+        'info_dict': {
+            'id': '10141022',
+            'title': '25岁，你是自在如风的少年<27°C>',
+            'description': 'md5:8d594db46cc3e6509107ede70a4aaa3b',
+        },
+        'playlist_count': 4,
+    }, {
+        'note': 'This program has accompanying songs.',
+        'url': 'http://music.163.com/#/program?id=10141022',
+        'info_dict': {
+            'id': '10141022',
+            'ext': 'mp3',
+            'title': '25岁，你是自在如风的少年<27°C>',
+            'description': 'md5:8d594db46cc3e6509107ede70a4aaa3b',
+            'timestamp': 1434450840,
+            'upload_date': '20150616',
+        },
+        'params': {
+            'noplaylist': True
+        }
+    }]
+
+    def _real_extract(self, url):
+        program_id = self._match_id(url)
+
+        info = self.query_api(
+            'dj/program/detail?id=%s' % program_id,
+            program_id, 'Downloading program info')['program']
+
+        name = info['name']
+        description = info['description']
+
+        if not info['songs'] or self._downloader.params.get('noplaylist'):
+            if info['songs']:
+                self.to_screen(
+                    'Downloading just the main audio %s because of --no-playlist'
+                    % info['mainSong']['id'])
+            
+            formats = self.extract_formats(info['mainSong'])
+            self._sort_formats(formats)
+
+            return {
+                'id': program_id,
+                'title': name,
+                'description': description,
+                'creator': info['dj']['brand'],
+                'timestamp': int(info['createTime']/1000),
+                'thumbnail': info['coverUrl'],
+                'duration': int(info.get('duration', 0)/1000),
+                'formats': formats,
+            }
+
+        self.to_screen(
+            'Downloading playlist %s - add --no-playlist to just download the main audio %s'
+            % (program_id, info['mainSong']['id']))
+
+        song_ids = [info['mainSong']['id']]
+        song_ids.extend([song['id'] for song in info['songs']])
+        entries = [
+            self.url_result('http://music.163.com/#/song?id=%s' % song_id,
+                            'NetEaseMusic', song_id)
+            for song_id in song_ids
+        ]
+        return self.playlist_result(entries, program_id, name, description)
+
+
+class NetEaseMusicDjRadioIE(NetEaseMusicBaseIE):
+    IE_NAME = 'netease:djradio'
+    _VALID_URL = r'https?://music\.163\.com/(#/)?djradio\?id=(?P<id>[0-9]+)'
+    _TEST = {
+        'url': 'http://music.163.com/#/djradio?id=42',
+        'info_dict': {
+            'id': '42',
+            'title': '声音蔓延',
+            'description': 'md5:766220985cbd16fdd552f64c578a6b15'
+        },
+        'playlist_mincount': 40,
+    }
+    _PAGE_SIZE = 1000
+
+    def _real_extract(self, url):
+        dj_id = self._match_id(url)
+
+        name = None
+        desc = None
+        entries = []
+        for offset in itertools.count(start=0, step=self._PAGE_SIZE):
+            info = self.query_api(
+                'dj/program/byradio?asc=false&limit=%d&radioId=%s&offset=%d' 
+                % (self._PAGE_SIZE, dj_id, offset),
+                dj_id, 'Downloading dj programs - %d' % offset)
+
+            entries.extend([
+                self.url_result(
+                    'http://music.163.com/#/program?id=%s' % program['id'],
+                    'NetEaseMusicProgram', program['id'])
+                for program in info['programs']
+            ])
+
+            if name is None:
+                radio = info['programs'][0]['radio']
+                name = radio['name']
+                desc = radio['desc']
+
+            if not info['more']:
+                break
+
+        return self.playlist_result(entries, dj_id, name, desc)