From 0c021ad171231c91e554c76d62e7fc749caf87bc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jaime=20Marqui=CC=81nez=20Ferra=CC=81ndiz?=
 <jaime.marquinez.ferrandiz@gmail.com>
Date: Sat, 4 May 2013 14:23:16 +0200
Subject: [PATCH] More callbacks changed to raise ExtractorError

---
 youtube_dl/InfoExtractors.py | 382 ++++++++++++-----------------------
 1 file changed, 129 insertions(+), 253 deletions(-)

diff --git a/youtube_dl/InfoExtractors.py b/youtube_dl/InfoExtractors.py
index 36343882b..0c544d747 100755
--- a/youtube_dl/InfoExtractors.py
+++ b/youtube_dl/InfoExtractors.py
@@ -472,14 +472,12 @@ def _real_initialize(self):
             self.report_age_confirmation()
             age_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to confirm age: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to confirm age: %s' % compat_str(err))
 
     def _extract_id(self, url):
         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group(2)
         return video_id
 
@@ -497,8 +495,7 @@ def _real_extract(self, url):
         try:
             video_webpage_bytes = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download video webpage: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to download video webpage: %s' % compat_str(err))
 
         video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
 
@@ -522,23 +519,20 @@ def _real_extract(self, url):
                 break
         if 'token' not in video_info:
             if 'reason' in video_info:
-                self._downloader.report_error(u'YouTube said: %s' % video_info['reason'][0])
+                raise ExtractorError(u'YouTube said: %s' % video_info['reason'][0])
             else:
-                self._downloader.report_error(u'"token" parameter not in video info for unknown reason')
-            return
+                raise ExtractorError(u'"token" parameter not in video info for unknown reason')
 
         # Check for "rental" videos
         if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
-            self._downloader.report_error(u'"rental" videos not supported')
-            return
+            raise ExtractorError(u'"rental" videos not supported')
 
         # Start extracting information
         self.report_information_extraction(video_id)
 
         # uploader
         if 'author' not in video_info:
-            self._downloader.report_error(u'unable to extract uploader name')
-            return
+            raise ExtractorError(u'Unable to extract uploader name')
         video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
 
         # uploader_id
@@ -551,8 +545,7 @@ def _real_extract(self, url):
 
         # title
         if 'title' not in video_info:
-            self._downloader.report_error(u'unable to extract video title')
-            return
+            raise ExtractorError(u'Unable to extract video title')
         video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
 
         # thumbnail image
@@ -699,8 +692,7 @@ def _real_initialize(self):
             self.report_disclaimer()
             disclaimer = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to retrieve disclaimer: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to retrieve disclaimer: %s' % compat_str(err))
 
         # Confirm age
         disclaimer_form = {
@@ -712,15 +704,13 @@ def _real_initialize(self):
             self.report_age_confirmation()
             disclaimer = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to confirm age: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to confirm age: %s' % compat_str(err))
 
     def _real_extract(self, url):
         # Extract id and simplified title from URL
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group(1)
 
@@ -749,30 +739,25 @@ def _real_extract(self, url):
         else:
             mobj = re.search(r' name="flashvars" value="(.*?)"', webpage)
             if mobj is None:
-                self._downloader.report_error(u'unable to extract media URL')
-                return
+                raise ExtractorError(u'Unable to extract media URL')
             vardict = compat_parse_qs(mobj.group(1))
             if 'mediaData' not in vardict:
-                self._downloader.report_error(u'unable to extract media URL')
-                return
+                raise ExtractorError(u'Unable to extract media URL')
             mobj = re.search(r'"mediaURL":"(?P<mediaURL>http.*?)",(.*?)"key":"(?P<key>.*?)"', vardict['mediaData'][0])
             if mobj is None:
-                self._downloader.report_error(u'unable to extract media URL')
-                return
+                raise ExtractorError(u'Unable to extract media URL')
             mediaURL = mobj.group('mediaURL').replace('\\/', '/')
             video_extension = mediaURL[-3:]
             video_url = '%s?__gda__=%s' % (mediaURL, mobj.group('key'))
 
         mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
         video_title = mobj.group(1).decode('utf-8')
 
         mobj = re.search(r'submitter=(.*?);', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract uploader nickname')
-            return
+            raise ExtractorError(u'Unable to extract uploader nickname')
         video_uploader = mobj.group(1)
 
         return [{
@@ -794,8 +779,7 @@ def _real_extract(self, url):
         # Extract id and simplified title from URL
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group(1).split('_')[0].split('?')[0]
 
@@ -810,8 +794,7 @@ def _real_extract(self, url):
         self.report_extraction(video_id)
         mobj = re.search(r'\s*var flashvars = (.*)', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract media URL')
-            return
+            raise ExtractorError(u'Unable to extract media URL')
         flashvars = compat_urllib_parse.unquote(mobj.group(1))
 
         for key in ['hd1080URL', 'hd720URL', 'hqURL', 'sdURL', 'ldURL', 'video_url']:
@@ -820,13 +803,11 @@ def _real_extract(self, url):
                 self.to_screen(u'Using %s' % key)
                 break
         else:
-            self._downloader.report_error(u'unable to extract video URL')
-            return
+            raise ExtractorError(u'Unable to extract video URL')
 
         mobj = re.search(r'"' + max_quality + r'":"(.+?)"', flashvars)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video URL')
-            return
+            raise ExtractorError(u'Unable to extract video URL')
 
         video_url = compat_urllib_parse.unquote(mobj.group(1)).replace('\\/', '/')
 
@@ -834,8 +815,7 @@ def _real_extract(self, url):
 
         mobj = re.search(r'<meta property="og:title" content="(?P<title>[^"]*)" />', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
         video_title = unescapeHTML(mobj.group('title'))
 
         video_uploader = None
@@ -875,8 +855,7 @@ def _real_extract(self, url):
         # Extract id from URL
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group(1)
 
@@ -888,23 +867,20 @@ def _real_extract(self, url):
             self.report_download_webpage(video_id)
             webpage = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'Unable to retrieve video webpage: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to retrieve video webpage: %s' % compat_str(err))
 
         # Extract URL, uploader, and title from webpage
         self.report_extraction(video_id)
         mobj = re.search(r'<link rel="video_src" href=".*\?file=([^"]+)" />', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract media URL')
-            return
+            raise ExtractorError(u'Unable to extract media URL')
         mediaURL = compat_urllib_parse.unquote(mobj.group(1))
 
         video_url = mediaURL
 
         mobj = re.search(r'<title>(.*) video by (.*) - Photobucket</title>', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
         video_title = mobj.group(1).decode('utf-8')
 
         video_uploader = mobj.group(2).decode('utf-8')
@@ -933,8 +909,7 @@ def _real_extract(self, url, new_video=True):
         # Extract ID from URL
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group(2)
         video_extension = 'flv'
@@ -946,19 +921,16 @@ def _real_extract(self, url, new_video=True):
             try:
                 webpage = compat_urllib_request.urlopen(request).read()
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'Unable to retrieve video webpage: %s' % compat_str(err))
-                return
+                raise ExtractorError(u'Unable to retrieve video webpage: %s' % compat_str(err))
 
             mobj = re.search(r'\("id", "([0-9]+)"\);', webpage)
             if mobj is None:
-                self._downloader.report_error(u'Unable to extract id field')
-                return
+                raise ExtractorError(u'Unable to extract id field')
             yahoo_id = mobj.group(1)
 
             mobj = re.search(r'\("vid", "([0-9]+)"\);', webpage)
             if mobj is None:
-                self._downloader.report_error(u'Unable to extract vid field')
-                return
+                raise ExtractorError(u'Unable to extract vid field')
             yahoo_vid = mobj.group(1)
 
             url = 'http://video.yahoo.com/watch/%s/%s' % (yahoo_vid, yahoo_id)
@@ -970,35 +942,30 @@ def _real_extract(self, url, new_video=True):
             self.report_download_webpage(video_id)
             webpage = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'Unable to retrieve video webpage: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to retrieve video webpage: %s' % compat_str(err))
 
         # Extract uploader and title from webpage
         self.report_extraction(video_id)
         mobj = re.search(r'<meta name="title" content="(.*)" />', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video title')
-            return
+            raise ExtractorError(u'Unable to extract video title')
         video_title = mobj.group(1).decode('utf-8')
 
         mobj = re.search(r'<h2 class="ti-5"><a href="http://video\.yahoo\.com/(people|profile)/[0-9]+" beacon=".*">(.*)</a></h2>', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video uploader')
-            return
+            raise ExtractorError(u'Unable to extract video uploader')
         video_uploader = mobj.group(1).decode('utf-8')
 
         # Extract video thumbnail
         mobj = re.search(r'<link rel="image_src" href="(.*)" />', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video thumbnail')
-            return
+            raise ExtractorError(u'Unable to extract video thumbnail')
         video_thumbnail = mobj.group(1).decode('utf-8')
 
         # Extract video description
         mobj = re.search(r'<meta name="description" content="(.*)" />', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video description')
-            return
+            raise ExtractorError(u'Unable to extract video description')
         video_description = mobj.group(1).decode('utf-8')
         if not video_description:
             video_description = 'No description available.'
@@ -1006,14 +973,12 @@ def _real_extract(self, url, new_video=True):
         # Extract video height and width
         mobj = re.search(r'<meta name="video_height" content="([0-9]+)" />', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video height')
-            return
+            raise ExtractorError(u'Unable to extract video height')
         yv_video_height = mobj.group(1)
 
         mobj = re.search(r'<meta name="video_width" content="([0-9]+)" />', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video width')
-            return
+            raise ExtractorError(u'Unable to extract video width')
         yv_video_width = mobj.group(1)
 
         # Retrieve video playlist to extract media URL
@@ -1028,14 +993,12 @@ def _real_extract(self, url, new_video=True):
             self.report_download_webpage(video_id)
             webpage = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'Unable to retrieve video webpage: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to retrieve video webpage: %s' % compat_str(err))
 
         # Extract media URL from playlist XML
         mobj = re.search(r'<STREAM APP="(http://.*)" FULLPATH="/?(/.*\.flv\?[^"]*)"', webpage)
         if mobj is None:
-            self._downloader.report_error(u'Unable to extract media URL')
-            return
+            raise ExtractorError(u'Unable to extract media URL')
         video_url = compat_urllib_parse.unquote(mobj.group(1) + mobj.group(2)).decode('utf-8')
         video_url = unescapeHTML(video_url)
 
@@ -1062,8 +1025,7 @@ def _real_extract(self, url, new_video=True):
         # Extract ID from URL
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group('id')
         if not mobj.group('proto'):
@@ -1086,10 +1048,9 @@ def _real_extract(self, url, new_video=True):
             config = json.loads(config)
         except:
             if re.search('The creator of this video has not given you permission to embed it on this domain.', webpage):
-                self._downloader.report_error(u'The author has restricted the access to this video, try with the "--referer" option')
+                raise ExtractorError(u'The author has restricted the access to this video, try with the "--referer" option')
             else:
-                self._downloader.report_error(u'unable to extract info section')
-            return
+                raise ExtractorError(u'Unable to extract info section')
 
         # Extract title
         video_title = config["video"]["title"]
@@ -1138,8 +1099,7 @@ def _real_extract(self, url, new_video=True):
                 self.to_screen(u'%s: Downloading %s file at %s quality' % (video_id, video_codec.upper(), video_quality))
                 break
         else:
-            self._downloader.report_error(u'no known codec found')
-            return
+            raise ExtractorError(u'No known codec found')
 
         video_url = "http://player.vimeo.com/play_redirect?clip_id=%s&sig=%s&time=%s&quality=%s&codecs=%s&type=moogaloop_local&embed_location=" \
                     %(video_id, sig, timestamp, video_quality, video_codec.upper())
@@ -1171,11 +1131,9 @@ def fetch_webpage(self, url):
             self.report_download_webpage(url)
             webpage = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'Unable to retrieve video webpage: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to retrieve video webpage: %s' % compat_str(err))
         except ValueError as err:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         return webpage
 
     def grep_webpage(self, url, regex, regexFlags, matchTuples):
@@ -1184,13 +1142,11 @@ def grep_webpage(self, url, regex, regexFlags, matchTuples):
         info = {}
 
         if mobj is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         for (i, key, err) in matchTuples:
             if mobj.group(i) is None:
-                self._downloader.report_error(err)
-                return
+                raise ExtractorError(err)
             else:
                 info[key] = mobj.group(i)
 
@@ -1362,8 +1318,7 @@ def _real_extract(self, url):
         except ValueError as err:
             # since this is the last-resort InfoExtractor, if
             # this error is thrown, it'll be thrown here
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         self.report_extraction(video_id)
         # Start with something easy: JW Player in SWFObject
@@ -1375,14 +1330,12 @@ def _real_extract(self, url):
             # Broaden the search a little bit: JWPlayer JS loader
             mobj = re.search(r'[^A-Za-z0-9]?file:\s*["\'](http[^\'"&]*)', webpage)
         if mobj is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         # It's possible that one of the regexes
         # matched, but returned an empty group:
         if mobj.group(1) is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_url = compat_urllib_parse.unquote(mobj.group(1))
         video_id = os.path.basename(video_url)
@@ -1399,15 +1352,13 @@ def _real_extract(self, url):
         # and so on and so forth; it's just not practical
         mobj = re.search(r'<title>(.*)</title>', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
         video_title = mobj.group(1)
 
         # video uploader is domain name
         mobj = re.match(r'(?:https?://)?([^/]*)/.*', url)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
         video_uploader = mobj.group(1)
 
         return [{
@@ -1435,8 +1386,7 @@ def report_download_page(self, query, pagenum):
     def _real_extract(self, query):
         mobj = re.match(self._VALID_URL, query)
         if mobj is None:
-            self._downloader.report_error(u'invalid search query "%s"' % query)
-            return
+            raise ExtractorError(u'Invalid search query "%s"' % query)
 
         prefix, query = query.split(':')
         prefix = prefix[8:]
@@ -1449,8 +1399,7 @@ def _real_extract(self, query):
             try:
                 n = int(prefix)
                 if n <= 0:
-                    self._downloader.report_error(u'invalid download number %s for query "%s"' % (n, query))
-                    return
+                    raise ExtractorError(u'Invalid download number %s for query "%s"' % (n, query))
                 elif n > self._max_youtube_results:
                     self._downloader.report_warning(u'ytsearch returns max %i results (you requested %i)' % (self._max_youtube_results, n))
                     n = self._max_youtube_results
@@ -1472,13 +1421,11 @@ def _get_n_results(self, query, n):
             try:
                 data = compat_urllib_request.urlopen(request).read().decode('utf-8')
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download API page: %s' % compat_str(err))
-                return
+                raise ExtractorError(u'Unable to download API page: %s' % compat_str(err))
             api_response = json.loads(data)['data']
 
             if not 'items' in api_response:
-                self._downloader.report_error(u'[youtube] No video results')
-                return
+                raise ExtractorError(u'[youtube] No video results')
 
             new_ids = list(video['id'] for video in api_response['items'])
             video_ids += new_ids
@@ -1509,8 +1456,7 @@ def report_download_page(self, query, pagenum):
     def _real_extract(self, query):
         mobj = re.match(self._VALID_URL, query)
         if mobj is None:
-            self._downloader.report_error(u'invalid search query "%s"' % query)
-            return
+            raise ExtractorError(u'Invalid search query "%s"' % query)
 
         prefix, query = query.split(':')
         prefix = prefix[8:]
@@ -1525,8 +1471,7 @@ def _real_extract(self, query):
             try:
                 n = int(prefix)
                 if n <= 0:
-                    self._downloader.report_error(u'invalid download number %s for query "%s"' % (n, query))
-                    return
+                    raise ExtractorError(u'Invalid download number %s for query "%s"' % (n, query))
                 elif n > self._max_google_results:
                     self._downloader.report_warning(u'gvsearch returns max %i results (you requested %i)' % (self._max_google_results, n))
                     n = self._max_google_results
@@ -1549,8 +1494,7 @@ def _download_n_results(self, query, n):
             try:
                 page = compat_urllib_request.urlopen(request).read()
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
-                return
+                raise ExtractorError(u'Unable to download webpage: %s' % compat_str(err))
 
             # Extract video identifiers
             for mobj in re.finditer(self._VIDEO_INDICATOR, page):
@@ -1590,8 +1534,7 @@ def report_download_page(self, query, pagenum):
     def _real_extract(self, query):
         mobj = re.match(self._VALID_URL, query)
         if mobj is None:
-            self._downloader.report_error(u'invalid search query "%s"' % query)
-            return
+            raise ExtractorError(u'Invalid search query "%s"' % query)
 
         prefix, query = query.split(':')
         prefix = prefix[8:]
@@ -1606,8 +1549,7 @@ def _real_extract(self, query):
             try:
                 n = int(prefix)
                 if n <= 0:
-                    self._downloader.report_error(u'invalid download number %s for query "%s"' % (n, query))
-                    return
+                    raise ExtractorError(u'Invalid download number %s for query "%s"' % (n, query))
                 elif n > self._max_yahoo_results:
                     self._downloader.report_warning(u'yvsearch returns max %i results (you requested %i)' % (self._max_yahoo_results, n))
                     n = self._max_yahoo_results
@@ -1631,8 +1573,7 @@ def _download_n_results(self, query, n):
             try:
                 page = compat_urllib_request.urlopen(request).read()
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
-                return
+                raise ExtractorError(u'Unable to download webpage: %s' % compat_str(err))
 
             # Extract video identifiers
             for mobj in re.finditer(self._VIDEO_INDICATOR, page):
@@ -1684,8 +1625,7 @@ def _real_extract(self, url):
         # Extract playlist id
         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
         if mobj is None:
-            self._downloader.report_error(u'invalid url: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         # Download playlist videos from API
         playlist_id = mobj.group(1) or mobj.group(2)
@@ -1699,12 +1639,10 @@ def _real_extract(self, url):
             try:
                 response = json.loads(page)
             except ValueError as err:
-                self._downloader.report_error(u'Invalid JSON in API response: ' + compat_str(err))
-                return
+                raise ExtractorError(u'Invalid JSON in API response: ' + compat_str(err))
 
             if 'feed' not in response:
-                self._downloader.report_error(u'Got a malformed response from YouTube API')
-                return
+                raise ExtractorError(u'Got a malformed response from YouTube API')
             playlist_title = response['feed']['title']['$t']
             if 'entry' not in response['feed']:
                 # Number of videos is a multiple of self._MAX_RESULTS
@@ -1744,8 +1682,7 @@ def _real_extract(self, url):
         # Extract channel id
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid url: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         # Download channel page
         channel_id = mobj.group(1)
@@ -1798,8 +1735,7 @@ def _real_extract(self, url):
         # Extract username
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid url: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         username = mobj.group(1)
 
@@ -1854,8 +1790,7 @@ def _real_extract(self, url):
         # Extract username
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid url: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         username = mobj.group(1)
 
@@ -1921,8 +1856,7 @@ def _real_extract(self, url):
             self.report_download_webpage(file_id)
             webpage = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'Unable to retrieve file webpage: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to retrieve file webpage: %s' % compat_str(err))
 
         # Search for the real file URL
         mobj = re.search(r'<form action="(http://fileshare.+?)"', webpage)
@@ -1931,10 +1865,9 @@ def _real_extract(self, url):
             mobj = re.search(r'<strong>(Attention.*?)</strong>', webpage, re.DOTALL)
             if (mobj is not None) and (mobj.group(1) is not None):
                 restriction_message = re.sub('\s+', ' ', mobj.group(1)).strip()
-                self._downloader.report_error(u'%s' % restriction_message)
+                raise ExtractorError(u'%s' % restriction_message)
             else:
-                self._downloader.report_error(u'unable to extract download URL from: %s' % url)
-            return
+                raise ExtractorError(u'Unable to extract download URL from: %s' % url)
 
         file_url = mobj.group(1)
         file_extension = os.path.splitext(file_url)[1][1:]
@@ -1942,8 +1875,7 @@ def _real_extract(self, url):
         # Search for file title
         mobj = re.search(r'<b title="(.*?)">', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
         file_title = mobj.group(1).decode('utf-8')
 
         return [{
@@ -2015,8 +1947,7 @@ def _real_initialize(self):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group('ID')
 
         url = 'https://www.facebook.com/video/video.php?v=%s' % video_id
@@ -2069,8 +2000,7 @@ def report_direct_download(self, title):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         urlp = compat_urllib_parse_urlparse(url)
         if urlp.path.startswith('/play/'):
@@ -2116,8 +2046,7 @@ def _real_extract(self, url):
                 json_code_bytes = urlh.read()
                 json_code = json_code_bytes.decode('utf-8')
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to read video info webpage: %s' % compat_str(err))
-                return
+                raise ExtractorError(u'Unable to read video info webpage: %s' % compat_str(err))
 
             try:
                 json_data = json.loads(json_code)
@@ -2147,8 +2076,7 @@ def _real_extract(self, url):
                     'user_agent': 'iTunes/10.6.1',
                 }
             except (ValueError,KeyError) as err:
-                self._downloader.report_error(u'unable to parse video information: %s' % repr(err))
-                return
+                raise ExtractorError(u'Unable to parse video information: %s' % repr(err))
 
         return [info]
 
@@ -2162,8 +2090,7 @@ class MyVideoIE(InfoExtractor):
     def _real_extract(self,url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._download.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group(1)
 
@@ -2175,14 +2102,12 @@ def _real_extract(self,url):
         mobj = re.search(r'<link rel=\'image_src\' href=\'(http://is[0-9].myvideo\.de/de/movie[0-9]+/[a-f0-9]+)/thumbs/.*?\.jpg\'',
                  webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract media URL')
-            return
+            raise ExtractorError(u'Unable to extract media URL')
         video_url = mobj.group(1) + ('/%s.flv' % video_id)
 
         mobj = re.search('<title>([^<]+)</title>', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
 
         video_title = mobj.group(1)
 
@@ -2245,8 +2170,7 @@ def _print_formats(self, formats):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         if mobj.group('shortname'):
             if mobj.group('shortname') in ('tds', 'thedailyshow'):
@@ -2373,8 +2297,7 @@ class EscapistIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         showName = mobj.group('showname')
         videoId = mobj.group('episode')
 
@@ -2400,8 +2323,7 @@ def _real_extract(self, url):
         try:
             config = json.loads(configJSON)
         except (ValueError,) as err:
-            self._downloader.report_error(u'Invalid JSON in configuration file: ' + compat_str(err))
-            return
+            raise ExtractorError(u'Invalid JSON in configuration file: ' + compat_str(err))
 
         playlist = config['playlist']
         videoUrl = playlist[1]['url']
@@ -2434,8 +2356,7 @@ def report_manifest(self, video_id):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group('videoid')
 
         info = {
@@ -2449,8 +2370,7 @@ def _real_extract(self, url):
         try:
             metaXml = compat_urllib_request.urlopen(xmlUrl).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download video info XML: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to download video info XML: %s' % compat_str(err))
 
         mdoc = xml.etree.ElementTree.fromstring(metaXml)
         try:
@@ -2460,16 +2380,14 @@ def _real_extract(self, url):
             info['thumbnail'] = videoNode.findall('./thumbnail')[0].text
             manifest_url = videoNode.findall('./file')[0].text
         except IndexError:
-            self._downloader.report_error(u'Invalid metadata XML file')
-            return
+            raise ExtractorError(u'Invalid metadata XML file')
 
         manifest_url += '?hdcore=2.10.3'
         self.report_manifest(video_id)
         try:
             manifestXml = compat_urllib_request.urlopen(manifest_url).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download video info XML: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to download video info XML: %s' % compat_str(err))
 
         adoc = xml.etree.ElementTree.fromstring(manifestXml)
         try:
@@ -2477,8 +2395,7 @@ def _real_extract(self, url):
             node_id = media_node.attrib['url']
             video_id = adoc.findall('./{http://ns.adobe.com/f4m/1.0}id')[0].text
         except IndexError as err:
-            self._downloader.report_error(u'Invalid manifest file')
-            return
+            raise ExtractorError(u'Invalid manifest file')
 
         url_pr = compat_urllib_parse_urlparse(manifest_url)
         url = url_pr.scheme + '://' + url_pr.netloc + '/z' + video_id[:-2] + '/' + node_id + 'Seg1-Frag1'
@@ -2497,8 +2414,7 @@ class XVideosIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group(1)
 
         webpage = self._download_webpage(url, video_id)
@@ -2509,24 +2425,21 @@ def _real_extract(self, url):
         # Extract video URL
         mobj = re.search(r'flv_url=(.+?)&', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video url')
-            return
+            raise ExtractorError(u'Unable to extract video url')
         video_url = compat_urllib_parse.unquote(mobj.group(1))
 
 
         # Extract title
         mobj = re.search(r'<title>(.*?)\s+-\s+XVID', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video title')
-            return
+            raise ExtractorError(u'Unable to extract video title')
         video_title = mobj.group(1)
 
 
         # Extract video thumbnail
         mobj = re.search(r'http://(?:img.*?\.)xvideos.com/videos/thumbs/[a-fA-F0-9]+/[a-fA-F0-9]+/[a-fA-F0-9]+/[a-fA-F0-9]+/([a-fA-F0-9.]+jpg)', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video thumbnail')
-            return
+            raise ExtractorError(u'Unable to extract video thumbnail')
         video_thumbnail = mobj.group(0)
 
         info = {
@@ -2562,8 +2475,7 @@ def report_resolve(self, video_id):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         # extract uploader (which is in the url)
         uploader = mobj.group(1)
@@ -2620,8 +2532,7 @@ def report_resolve(self, video_id):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         # extract uploader (which is in the url)
         uploader = mobj.group(1)
@@ -2673,8 +2584,7 @@ class InfoQIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         webpage = self._download_webpage(url, video_id=url)
         self.report_extraction(url)
@@ -2682,16 +2592,14 @@ def _real_extract(self, url):
         # Extract video URL
         mobj = re.search(r"jsclassref ?= ?'([^']*)'", webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video url')
-            return
+            raise ExtractorError(u'Unable to extract video url')
         real_id = compat_urllib_parse.unquote(base64.b64decode(mobj.group(1).encode('ascii')).decode('utf-8'))
         video_url = 'rtmpe://video.infoq.com/cfx/st/' + real_id
 
         # Extract title
         mobj = re.search(r'contentTitle = "(.*?)";', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video title')
-            return
+            raise ExtractorError(u'Unable to extract video title')
         video_title = mobj.group(1)
 
         # Extract description
@@ -2766,8 +2674,7 @@ def _print_formats(self, formats):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         # extract uploader & filename from url
         uploader = mobj.group(1).decode('utf-8')
         file_id = uploader + "-" + mobj.group(2).decode('utf-8')
@@ -2780,8 +2687,7 @@ def _real_extract(self, url):
             self.report_download_json(file_url)
             jsonData = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'Unable to retrieve file: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to retrieve file: %s' % compat_str(err))
 
         # parse JSON
         json_data = json.loads(jsonData)
@@ -2804,8 +2710,7 @@ def _real_extract(self, url):
                     break # got it!
         else:
             if req_format not in formats:
-                self._downloader.report_error(u'format is not available')
-                return
+                raise ExtractorError(u'Format is not available')
 
             url_list = self.get_urls(formats, req_format)
             file_url = self.check_urls(url_list)
@@ -2850,15 +2755,13 @@ def _real_extract(self, url):
             try:
                 metaXml = compat_urllib_request.urlopen(xmlUrl).read()
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download video info XML: %s' % compat_str(err))
-                return
+                raise ExtractorError(u'Unable to download video info XML: %s' % compat_str(err))
             mdoc = xml.etree.ElementTree.fromstring(metaXml)
             try:
                 info['title'] = mdoc.findall('./title')[0].text
                 info['url'] = baseUrl + mdoc.findall('./videoFile')[0].text
             except IndexError:
-                self._downloader.report_error(u'Invalid metadata XML file')
-                return
+                raise ExtractorError(u'Invalid metadata XML file')
             info['ext'] = info['url'].rpartition('.')[2]
             return [info]
         elif mobj.group('course'): # A course page
@@ -2909,8 +2812,7 @@ def _real_extract(self, url):
             try:
                 rootpage = compat_urllib_request.urlopen(rootURL).read()
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download course info page: ' + compat_str(err))
-                return
+                raise ExtractorError(u'Unable to download course info page: ' + compat_str(err))
 
             info['title'] = info['id']
 
@@ -2937,8 +2839,7 @@ class MTVIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         if not mobj.group('proto'):
             url = 'http://' + url
         video_id = mobj.group('videoid')
@@ -2947,26 +2848,22 @@ def _real_extract(self, url):
 
         mobj = re.search(r'<meta name="mtv_vt" content="([^"]+)"/>', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract song name')
-            return
+            raise ExtractorError(u'Unable to extract song name')
         song_name = unescapeHTML(mobj.group(1).decode('iso-8859-1'))
         mobj = re.search(r'<meta name="mtv_an" content="([^"]+)"/>', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract performer')
-            return
+            raise ExtractorError(u'Unable to extract performer')
         performer = unescapeHTML(mobj.group(1).decode('iso-8859-1'))
         video_title = performer + ' - ' + song_name
 
         mobj = re.search(r'<meta name="mtvn_uri" content="([^"]+)"/>', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to mtvn_uri')
-            return
+            raise ExtractorError(u'Unable to mtvn_uri')
         mtvn_uri = mobj.group(1)
 
         mobj = re.search(r'MTVN.Player.defaultPlaylistId = ([0-9]+);', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract content id')
-            return
+            raise ExtractorError(u'Unable to extract content id')
         content_id = mobj.group(1)
 
         videogen_url = 'http://www.mtv.com/player/includes/mediaGen.jhtml?uri=' + mtvn_uri + '&id=' + content_id + '&vid=' + video_id + '&ref=www.mtvn.com&viewUri=' + mtvn_uri
@@ -2975,8 +2872,7 @@ def _real_extract(self, url):
         try:
             metadataXml = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download video metadata: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to download video metadata: %s' % compat_str(err))
 
         mdoc = xml.etree.ElementTree.fromstring(metadataXml)
         renditions = mdoc.findall('.//rendition')
@@ -2989,8 +2885,7 @@ def _real_extract(self, url):
             format = ext + '-' + rendition.attrib['width'] + 'x' + rendition.attrib['height'] + '_' + rendition.attrib['bitrate']
             video_url = rendition.find('./src').text
         except KeyError:
-            self._downloader.report_error('Invalid rendition field.')
-            return
+            raise ExtractorError('Invalid rendition field.')
 
         info = {
             'id': video_id,
@@ -3039,8 +2934,7 @@ def _get_file_id(self, fileId, seed):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group('ID')
 
         info_url = 'http://v.youku.com/player/getPlayList/VideoIDS/' + video_id
@@ -3074,8 +2968,7 @@ def _real_extract(self, url):
             fileid = config['data'][0]['streamfileids'][format]
             keys = [s['k'] for s in config['data'][0]['segs'][format]]
         except (UnicodeDecodeError, ValueError, KeyError):
-            self._downloader.report_error(u'unable to extract info section')
-            return
+            raise ExtractorError(u'Unable to extract info section')
 
         files_info=[]
         sid = self._gen_sid()
@@ -3113,8 +3006,7 @@ class XNXXIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group(1)
 
         # Get webpage content
@@ -3122,20 +3014,17 @@ def _real_extract(self, url):
 
         result = re.search(self.VIDEO_URL_RE, webpage)
         if result is None:
-            self._downloader.report_error(u'unable to extract video url')
-            return
+            raise ExtractorError(u'Unable to extract video url')
         video_url = compat_urllib_parse.unquote(result.group(1))
 
         result = re.search(self.VIDEO_TITLE_RE, webpage)
         if result is None:
-            self._downloader.report_error(u'unable to extract video title')
-            return
+            raise ExtractorError(u'Unable to extract video title')
         video_title = result.group(1)
 
         result = re.search(self.VIDEO_THUMB_RE, webpage)
         if result is None:
-            self._downloader.report_error(u'unable to extract video thumbnail')
-            return
+            raise ExtractorError(u'Unable to extract video thumbnail')
         video_thumbnail = result.group(1)
 
         return [{
@@ -3180,8 +3069,7 @@ def _real_extract(self, url):
         # Extract id from URL
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         post_url = mobj.group(0)
         video_id = mobj.group(1)
@@ -3268,8 +3156,7 @@ class NBAIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group(1)
         if video_id.endswith('/index.html'):
@@ -3641,8 +3528,7 @@ def _specific(self, req_format, formats):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group('videoid')
 
@@ -3733,8 +3619,7 @@ def _real_extract(self, url):
         else:
             format = self._specific( req_format, formats )
             if result is None:
-                self._downloader.report_error(u'requested format not available')
-                return
+                raise ExtractorError(u'Requested format not available')
             return [format]
 
 
@@ -3746,8 +3631,7 @@ class PornotubeIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group('videoid')
         video_title = mobj.group('title')
@@ -3759,16 +3643,14 @@ def _real_extract(self, url):
         VIDEO_URL_RE = r'url: "(?P<url>http://video[0-9].pornotube.com/.+\.flv)",'
         result = re.search(VIDEO_URL_RE, webpage)
         if result is None:
-            self._downloader.report_error(u'unable to extract video url')
-            return
+            raise ExtractorError(u'Unable to extract video url')
         video_url = compat_urllib_parse.unquote(result.group('url'))
 
         #Get the uploaded date
         VIDEO_UPLOADED_RE = r'<div class="video_added_by">Added (?P<date>[0-9\/]+) by'
         result = re.search(VIDEO_UPLOADED_RE, webpage)
         if result is None:
-            self._downloader.report_error(u'unable to extract video title')
-            return
+            raise ExtractorError(u'Unable to extract video title')
         upload_date = unified_strdate(result.group('date'))
 
         info = {'id': video_id,
@@ -3788,8 +3670,7 @@ class YouJizzIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group('videoid')
 
@@ -3995,14 +3876,12 @@ def _real_extract(self, url):
         # extract values from metadata
         url_flv_el = metadata.find('url_flv')
         if url_flv_el is None:
-            self._downloader.report_error(u'unable to extract download url')
-            return
+            raise ExtractorError(u'Unable to extract download url')
         video_url = url_flv_el.text
         extension = os.path.splitext(video_url)[1][1:]
         title_el = metadata.find('title')
         if title_el is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
         title = title_el.text
         format_id_el = metadata.find('format_id')
         if format_id_el is None:
@@ -4071,8 +3950,7 @@ class LiveLeakIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group('video_id')
 
@@ -4080,8 +3958,7 @@ def _real_extract(self, url):
 
         m = re.search(r'file: "(.*?)",', webpage)
         if not m:
-            self._downloader.report_error(u'unable to find video url')
-            return
+            raise ExtractorError(u'Unable to find video url')
         video_url = m.group(1)
 
         m = re.search(r'<meta property="og:title" content="(?P<title>.*?)"', webpage)
@@ -4133,8 +4010,7 @@ def _real_extract(self, url):
         streams = [m.groupdict() for m in re.finditer(self._MEDIA_STREAM, html)]
         if not streams:
             assert '"fsk"' in html
-            self._downloader.report_error(u'this video is only available after 8:00 pm')
-            return
+            raise ExtractorError(u'This video is only available after 8:00 pm')
 
         # choose default media type and highest quality for now
         stream = max([s for s in streams if int(s["media_type"]) == 0],
@@ -4196,8 +4072,8 @@ def _real_extract(self, url):
         # We get the link to the free download page
         m_download = re.search(r'freeDownloadPage: "(.*?)"', webpage)
         if m_download is None:
-            self._downloader.report_error('No free songs founded')
-            return
+            raise ExtractorError(u'No free songs founded')
+
         download_link = m_download.group(1)
         id = re.search(r'var TralbumData = {(.*?)id: (?P<id>\d*?)$', 
                        webpage, re.MULTILINE|re.DOTALL).group('id')