[Vbox7IE] Improve extraction

* DASH extraction no longer fails with new range support
* but always find combined formats if available
* suppress ineffective XFF geo-bypass (causes time-outs)
* adapted from https://github.com/ytdl-org/youtube-dl/pull/29680
* thx former GH user kikuyan

youtube_dl/extractor/vbox7.py

@@ -2,9 +2,19 @@
 from __future__ import unicode_literals
 
 import re
+import time
 
 from .common import InfoExtractor
-from ..utils import ExtractorError
+from ..utils import (
+    determine_ext,
+    ExtractorError,
+    float_or_none,
+    merge_dicts,
+    T,
+    traverse_obj,
+    txt_or_none,
+    url_or_none,
+)
 
 
 class Vbox7IE(InfoExtractor):
@@ -20,10 +30,12 @@ class Vbox7IE(InfoExtractor):
                         )
                         (?P<id>[\da-fA-F]+)
                     '''
+    _EMBED_REGEX = [r'<iframe[^>]+src=(?P<q>["\'])(?P<url>(?:https?:)?//vbox7\.com/emb/external\.php.+?)(?P=q)']
     _GEO_COUNTRIES = ['BG']
+    _GEO_BYPASS = False
     _TESTS = [{
-        'url': 'http://vbox7.com/play:0946fff23c',
-        'md5': 'a60f9ab3a3a2f013ef9a967d5f7be5bf',
+        'url': 'https://vbox7.com/play:0946fff23c',
+        'md5': '50ca1f78345a9c15391af47d8062d074',
         'info_dict': {
             'id': '0946fff23c',
             'ext': 'mp4',
@@ -34,18 +46,21 @@ class Vbox7IE(InfoExtractor):
             'upload_date': '20160812',
             'uploader': 'zdraveibulgaria',
         },
-        'params': {
-            'proxy': '127.0.0.1:8118',
-        },
+        'expected_warnings': [
+            'Unable to download webpage',
+        ],
     }, {
         'url': 'http://vbox7.com/play:249bb972c2',
-        'md5': '99f65c0c9ef9b682b97313e052734c3f',
+        'md5': 'aaf19465e37ec0b30b918df83ec32c50',
         'info_dict': {
             'id': '249bb972c2',
             'ext': 'mp4',
             'title': 'Смях! Чудо - чист за секунди - Скрита камера',
+            'description': 'Смях! Чудо - чист за секунди - Скрита камера',
+            'timestamp': 1360215023,
+            'upload_date': '20130207',
+            'uploader': 'svideteliat_ot_varshava',
         },
-        'skip': 'georestricted',
     }, {
         'url': 'http://vbox7.com/emb/external.php?vid=a240d20f9c&autoplay=1',
         'only_matching': True,
@@ -54,52 +69,88 @@ class Vbox7IE(InfoExtractor):
         'only_matching': True,
     }]
 
-    @staticmethod
-    def _extract_url(webpage):
-        mobj = re.search(
-            r'<iframe[^>]+src=(?P<q>["\'])(?P<url>(?:https?:)?//vbox7\.com/emb/external\.php.+?)(?P=q)',
-            webpage)
+    @classmethod
+    def _extract_url(cls, webpage):
+        mobj = re.search(cls._EMBED_REGEX[0], webpage)
         if mobj:
             return mobj.group('url')
 
     def _real_extract(self, url):
         video_id = self._match_id(url)
+        url = 'https://vbox7.com/play:%s' % (video_id,)
 
+        now = time.time()
         response = self._download_json(
-            'https://www.vbox7.com/ajax/video/nextvideo.php?vid=%s' % video_id,
-            video_id)
+            'https://www.vbox7.com/aj/player/item/options?vid=%s' % (video_id,),
+            video_id, headers={'Referer': url})
+        # estimate time to which possible `ago` member is relative
+        now = now + 0.5 * (time.time() - now)
 
         if 'error' in response:
             raise ExtractorError(
                 '%s said: %s' % (self.IE_NAME, response['error']), expected=True)
 
-        video = response['options']
+        video_url = traverse_obj(response, ('options', 'src', T(url_or_none)))
 
-        title = video['title']
-        video_url = video['src']
-
-        if '/na.mp4' in video_url:
+        if '/na.mp4' in video_url or '':
             self.raise_geo_restricted(countries=self._GEO_COUNTRIES)
 
-        uploader = video.get('uploader')
+        ext = determine_ext(video_url)
+        if ext == 'mpd':
+            # In case MPD cannot be parsed, or anyway, get mp4 combined
+            # formats usually provided to Safari, iOS, and old Windows
+            try:
+                formats, subtitles = self._extract_mpd_formats_and_subtitles(
+                    video_url, video_id, 'dash', fatal=False)
+            except KeyError:
+                self.report_warning('Failed to parse MPD manifest')
+                formats, subtitles = [], {}
 
-        webpage = self._download_webpage(
-            'http://vbox7.com/play:%s' % video_id, video_id, fatal=None)
+            video = response['options']
+            resolutions = (1080, 720, 480, 240, 144)
+            highest_res = traverse_obj(video, ('highestRes', T(int))) or resolutions[0]
+            for res in traverse_obj(video, ('resolutions', lambda _, r: int(r) > 0)) or resolutions:
+                if res > highest_res:
+                    continue
+                formats.append({
+                    'url': video_url.replace('.mpd', '_%d.mp4' % res),
+                    'format_id': '%dp' % res,
+                    'height': res,
+                })
+            # if above formats are flaky, enable the line below
+            # self._check_formats(formats, video_id)
+        else:
+            formats = [{
+                'url': video_url,
+            }]
+            subtitles = {}
+        self._sort_formats(formats)
 
-        info = {}
+        webpage = self._download_webpage(url, video_id, fatal=False) or ''
 
-        if webpage:
-            info = self._search_json_ld(
-                webpage.replace('"/*@context"', '"@context"'), video_id,
-                fatal=False)
+        info = self._search_json_ld(
+            webpage.replace('"/*@context"', '"@context"'), video_id,
+            fatal=False) if webpage else {}
 
-        info.update({
+        if not info.get('title'):
+            info['title'] = traverse_obj(response, (
+                'options', 'title', T(txt_or_none))) or self._og_search_title(webpage)
+
+        def if_missing(k):
+            return lambda x: None if k in info else x
+
+        info = merge_dicts(info, {
             'id': video_id,
-            'title': title,
-            'url': video_url,
-            'uploader': uploader,
-            'thumbnail': self._proto_relative_url(
+            'formats': formats,
+            'subtitles': subtitles or None,
+        }, info, traverse_obj(response, ('options', {
+            'uploader': ('uploader', T(txt_or_none)),
+            'timestamp': ('ago', T(if_missing('timestamp')), T(lambda t: int(round((now - t) / 60.0)) * 60)),
+            'duration': ('duration', T(if_missing('duration')), T(float_or_none)),
+        })))
+        if 'thumbnail' not in info:
+            info['thumbnail'] = self._proto_relative_url(
                 info.get('thumbnail') or self._og_search_thumbnail(webpage),
-                'http:'),
-        })
+                'https:'),
+
         return info