[sevenplay] detect API errors

youtube_dl/extractor/sevenplus.py

@@ -4,8 +4,12 @@ from __future__ import unicode_literals
 import re
 
 from .brightcove import BrightcoveNewIE
-from ..compat import compat_str
+from ..compat import (
+    compat_HTTPError,
+    compat_str,
+)
 from ..utils import (
+    ExtractorError,
     try_get,
     update_url_query,
 )
@@ -41,16 +45,22 @@ class SevenPlusIE(BrightcoveNewIE):
     def _real_extract(self, url):
         path, episode_id = re.match(self._VALID_URL, url).groups()
 
-        media = self._download_json(
-            'https://videoservice.swm.digital/playback', episode_id, query={
-                'appId': '7plus',
-                'deviceType': 'web',
-                'platformType': 'web',
-                'accountId': 5303576322001,
-                'referenceId': 'ref:' + episode_id,
-                'deliveryId': 'csai',
-                'videoType': 'vod',
-            })['media']
+        try:
+            media = self._download_json(
+                'https://videoservice.swm.digital/playback', episode_id, query={
+                    'appId': '7plus',
+                    'deviceType': 'web',
+                    'platformType': 'web',
+                    'accountId': 5303576322001,
+                    'referenceId': 'ref:' + episode_id,
+                    'deliveryId': 'csai',
+                    'videoType': 'vod',
+                })['media']
+        except ExtractorError as e:
+            if isinstance(e.cause, compat_HTTPError) and e.cause.code == 403:
+                raise ExtractorError(self._parse_json(
+                    e.cause.read().decode(), episode_id)[0]['error_code'], expected=True)
+            raise
 
         for source in media.get('sources', {}):
             src = source.get('src')