[xuite] Simplify and improve

youtube_dl/extractor/xuite.py

@@ -2,158 +2,141 @@
 from __future__ import unicode_literals
 
 import base64
+
 from .common import InfoExtractor
-from ..compat import (
+from ..compat import compat_urllib_parse_unquote
-    compat_urlparse,
-    compat_urllib_parse_unquote,
-    compat_parse_qs
-)
 from ..utils import (
     ExtractorError,
     parse_iso8601,
-    parse_duration
+    parse_duration,
 )
 
-# ref: http://stackoverflow.com/questions/475074/regex-to-parse-or-validate-base64-data
-REGEX_BASE64 = r'(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?'
-
-CST_ZONE = +8  # China Standard Time
-
 
 class XuiteIE(InfoExtractor):
-    _VALID_URL = r'http://vlog.xuite.net/play/(?P<id>%s)(/.*)?' % REGEX_BASE64
+    _REGEX_BASE64 = r'(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?'
+    _VALID_URL = r'http://vlog.xuite.net/(?:play|embed)/(?P<id>%s)' % _REGEX_BASE64
     _TESTS = [{
         # Audio
         'url': 'http://vlog.xuite.net/play/RGkzc1ZULTM4NjA5MTQuZmx2',
         'md5': '63a42c705772aa53fd4c1a0027f86adf',
         'info_dict': {
-            'id': 'RGkzc1ZULTM4NjA5MTQuZmx2',
+            'id': '3860914',
             'ext': 'mp3',
-            'upload_date': '20110902',
-            'uploader_id': '15973816',
-            'uploader': '阿能',
-            'timestamp': 1314932940,
             'title': '孤單南半球-歐德陽',
             'thumbnail': 're:^https?://.*\.jpg$',
+            'duration': 247.246,
+            'timestamp': 1314932940,
+            'upload_date': '20110902',
+            'uploader': '阿能',
+            'uploader_id': '15973816',
             'categories': ['個人短片'],
-            'duration': 247.246
+        },
-        }
-    }, {
-        # Audio with alternative form of url
-        'url': 'http://vlog.xuite.net/play/S1dDUjdyLTMyOTc3NjcuZmx2/%E5%AD%AB%E7%87%95%E5%A7%BF-%E7%9C%BC%E6%B7%9A%E6%88%90%E8%A9%A9',
-        'md5': 'c91645f324de53d82ebb80930e1a73d2',
-        'info_dict': {
-            'id': 'S1dDUjdyLTMyOTc3NjcuZmx2',
-            'ext': 'mp3',
-            'upload_date': '20101226',
-            'uploader_id': '10102699',
-            'uploader': '蠍',
-            'timestamp': 1293367080,
-            'title': '孫燕姿-眼淚成詩',
-            'thumbnail': 're:^https?://.*\.jpg$',
-            'categories': ['個人短片'],
-            'duration': 223.19
-        }
     }, {
         # Video with only one format
         'url': 'http://vlog.xuite.net/play/TkRZNjhULTM0NDE2MjkuZmx2',
         'md5': 'c45737fc8ac5dc8ac2f92ecbcecf505e',
         'info_dict': {
-            'id': 'TkRZNjhULTM0NDE2MjkuZmx2',
+            'id': '3441629',
             'ext': 'mp4',
-            'upload_date': '20110306',
-            'uploader_id': '10400126',
-            'uploader': 'Valen',
-            'timestamp': 1299383640,
             'title': '孫燕姿 - 眼淚成詩',
             'thumbnail': 're:^https?://.*\.jpg$',
+            'duration': 217.399,
+            'timestamp': 1299383640,
+            'upload_date': '20110306',
+            'uploader': 'Valen',
+            'uploader_id': '10400126',
             'categories': ['影視娛樂'],
-            'duration': 217.399
+        },
-        }
     }, {
         # Video with two formats
         'url': 'http://vlog.xuite.net/play/bWo1N1pLLTIxMzAxMTcwLmZsdg==',
         'md5': '1166e0f461efe55b62e26a2d2a68e6de',
         'info_dict': {
-            'id': 'bWo1N1pLLTIxMzAxMTcwLmZsdg==',
+            'id': '21301170',
             'ext': 'mp4',
-            'upload_date': '20150117',
-            'uploader_id': '242127761',
-            'uploader': '我只是想認真點',
-            'timestamp': 1421481240,
             'title': '暗殺教室 02',
+            'description': '字幕:【極影字幕社】',
             'thumbnail': 're:^https?://.*\.jpg$',
+            'duration': 1384.907,
+            'timestamp': 1421481240,
+            'upload_date': '20150117',
+            'uploader': '我只是想認真點',
+            'uploader_id': '242127761',
             'categories': ['電玩動漫'],
-            'duration': 1384.907
+        },
-        }
+    }, {
+        'url': 'http://vlog.xuite.net/play/S1dDUjdyLTMyOTc3NjcuZmx2/%E5%AD%AB%E7%87%95%E5%A7%BF-%E7%9C%BC%E6%B7%9A%E6%88%90%E8%A9%A9',
+        'only_matching': True,
     }]
 
-    def _flv_config(self, media_id):
+    def _extract_flv_config(self, media_id):
         base64_media_id = base64.b64encode(media_id.encode('utf-8')).decode('utf-8')
-        flv_config_url = 'http://vlog.xuite.net/flash/player?media=' + base64_media_id
+        flv_config = self._download_xml(
-        flv_config = self._download_xml(flv_config_url, 'flv config')
+            'http://vlog.xuite.net/flash/player?media=%s' % base64_media_id,
-
+            'flv config')
         prop_dict = {}
         for prop in flv_config.findall('./property'):
             prop_id = base64.b64decode(prop.attrib['id']).decode('utf-8')
-
+            # CDATA may be empty in flv config
             if not prop.text:
-                continue  # CDATA may be empty in flv config
+                continue
-
             encoded_content = base64.b64decode(prop.text).decode('utf-8')
             prop_dict[prop_id] = compat_urllib_parse_unquote(encoded_content)
-
         return prop_dict
 
-    def _type_string(self, media_url):
-        query_string = compat_urlparse.urlparse(media_url).query
-        type_string = compat_parse_qs(query_string)['q'][0]
-        return type_string
-
-    def _guess_ext(self, media_url):
-        type_string = self._type_string(media_url)
-        if type_string == 'mp3':
-            return 'mp3'
-        elif type_string == '360' or type_string == '720':
-            return 'mp4'
-        else:
-            raise ExtractorError('Unknown type string %s' % type_string)
-
     def _real_extract(self, url):
         video_id = self._match_id(url)
 
-        page = self._download_webpage(url, video_id)
+        webpage = self._download_webpage(url, video_id)
-        media_id = self._html_search_regex(r'data-mediaid="(\d+)"', page, 'media id')
-        flv_config = self._flv_config(media_id)
 
-        timestamp_local = parse_iso8601(flv_config['publish_datetime'], ' ')
+        error_msg = self._search_regex(
-        timestamp_gmt = timestamp_local - CST_ZONE * 3600
+            r'<div id="error-message-content">([^<]+)',
+            webpage, 'error message', default=None)
+        if error_msg:
+            raise ExtractorError(
+                '%s returned error: %s' % (self.IE_NAME, error_msg),
+                expected=True)
 
-        ret_attrs = {
+        video_id = self._html_search_regex(
-            'id': video_id,
+            r'data-mediaid="(\d+)"', webpage, 'media id')
-            'title': flv_config['title'],
+        flv_config = self._extract_flv_config(video_id)
-            'thumbnail': flv_config['thumb'],
+
-            'uploader': flv_config['author_name'],
+        FORMATS = {
-            'timestamp': timestamp_gmt,
+            'audio': 'mp3',
-            'uploader_id': flv_config['author_id'],
+            'video': 'mp4',
-            'duration': parse_duration(flv_config['duration']),
-            'categories': [flv_config['category']]
         }
 
-        if 'hq_src' in flv_config:
+        formats = []
-            urls = [flv_config['src'], flv_config['hq_src']]
+        for format_tag in ('src', 'hq_src'):
+            video_url = flv_config.get(format_tag)
+            if not video_url:
+                continue
+            format_id = self._search_regex(
+                r'\bq=(.+?)\b', video_url, 'format id', default=format_tag)
+            formats.append({
+                'url': video_url,
+                'ext': FORMATS.get(flv_config['type'], 'mp4'),
+                'format_id': format_id,
+                'height': int(format_id) if format_id.isnumeric() else None,
+            })
+        self._sort_formats(formats)
 
-            ret_attrs['formats'] = []
+        timestamp = flv_config.get('publish_datetime')
+        if timestamp:
+            timestamp = parse_iso8601(timestamp + ' +0800', ' ')
 
-            for url in urls:
+        category = flv_config.get('category')
-                ret_attrs['formats'].append({
+        categories = [category] if category else []
-                    'url': url,
-                    'ext': self._guess_ext(url),
-                    'format_id': self._type_string(url),
-                    'height': int(self._type_string(url))
-                })
-        else:
-            ret_attrs['url'] = flv_config['src']
-            ret_attrs['ext'] = self._guess_ext(flv_config['src'])
 
-        return ret_attrs
+        return {
+            'id': video_id,
+            'title': flv_config['title'],
+            'description': flv_config.get('description'),
+            'thumbnail': flv_config.get('thumb'),
+            'timestamp': timestamp,
+            'uploader': flv_config.get('author_name'),
+            'uploader_id': flv_config.get('author_id'),
+            'duration': parse_duration(flv_config.get('duration')),
+            'categories': categories,
+            'formats': formats,
+        }