1 files changed, 104 insertions, 0 deletions
diff --git a/youtube_dl/extractor/youku.py b/youtube_dl/extractor/youku.py
new file mode 100644
index 000000000..ed43f42be
--- /dev/null
+++ b/youtube_dl/extractor/youku.py
@@ -0,0 +1,104 @@
+import json
+import math
+import random
+import re
+import time
+
+from .common import InfoExtractor
+from ..utils import (
+    ExtractorError,
+)
+
+
+class YoukuIE(InfoExtractor):
+    _VALID_URL =  r'(?:http://)?v\.youku\.com/v_show/id_(?P<ID>[A-Za-z0-9]+)\.html'
+
+    def _gen_sid(self):
+        nowTime = int(time.time() * 1000)
+        random1 = random.randint(1000,1998)
+        random2 = random.randint(1000,9999)
+
+        return "%d%d%d" %(nowTime,random1,random2)
+
+    def _get_file_ID_mix_string(self, seed):
+        mixed = []
+        source = list("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/\:._-1234567890")
+        seed = float(seed)
+        for i in range(len(source)):
+            seed  =  (seed * 211 + 30031 ) % 65536
+            index  =  math.floor(seed / 65536 * len(source) )
+            mixed.append(source[int(index)])
+            source.remove(source[int(index)])
+        #return ''.join(mixed)
+        return mixed
+
+    def _get_file_id(self, fileId, seed):
+        mixed = self._get_file_ID_mix_string(seed)
+        ids = fileId.split('*')
+        realId = []
+        for ch in ids:
+            if ch:
+                realId.append(mixed[int(ch)])
+        return ''.join(realId)
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            raise ExtractorError(u'Invalid URL: %s' % url)
+        video_id = mobj.group('ID')
+
+        info_url = 'http://v.youku.com/player/getPlayList/VideoIDS/' + video_id
+
+        jsondata = self._download_webpage(info_url, video_id)
+
+        self.report_extraction(video_id)
+        try:
+            config = json.loads(jsondata)
+
+            video_title =  config['data'][0]['title']
+            seed = config['data'][0]['seed']
+
+            format = self._downloader.params.get('format', None)
+            supported_format = list(config['data'][0]['streamfileids'].keys())
+
+            if format is None or format == 'best':
+                if 'hd2' in supported_format:
+                    format = 'hd2'
+                else:
+                    format = 'flv'
+                ext = u'flv'
+            elif format == 'worst':
+                format = 'mp4'
+                ext = u'mp4'
+            else:
+                format = 'flv'
+                ext = u'flv'
+
+
+            fileid = config['data'][0]['streamfileids'][format]
+            keys = [s['k'] for s in config['data'][0]['segs'][format]]
+        except (UnicodeDecodeError, ValueError, KeyError):
+            raise ExtractorError(u'Unable to extract info section')
+
+        files_info=[]
+        sid = self._gen_sid()
+        fileid = self._get_file_id(fileid, seed)
+
+        #column 8,9 of fileid represent the segment number
+        #fileid[7:9] should be changed
+        for index, key in enumerate(keys):
+
+            temp_fileid = '%s%02X%s' % (fileid[0:8], index, fileid[10:])
+            download_url = 'http://f.youku.com/player/getFlvPath/sid/%s_%02X/st/flv/fileid/%s?k=%s' % (sid, index, temp_fileid, key)
+
+            info = {
+                'id': '%s_part%02d' % (video_id, index),
+                'url': download_url,
+                'uploader': None,
+                'upload_date': None,
+                'title': video_title,
+                'ext': ext,
+            }
+            files_info.append(info)
+
+        return files_info