[refactor] Do not specify redundant None as second argument in dict.get()
[youtube-dl] / youtube_dl / YoutubeDL.py
index 9a8c7da05172e342959d2ec5ffa481ab951fa763..d34f77a6d27ef3f606f5219f72c77bf05f3823f8 100755 (executable)
@@ -46,8 +46,11 @@ from .utils import (
     DateRange,
     DEFAULT_OUTTMPL,
     determine_ext,
+    determine_protocol,
     DownloadError,
+    encode_compat_str,
     encodeFilename,
+    error_to_compat_str,
     ExtractorError,
     format_bytes,
     formatSeconds,
@@ -260,7 +263,7 @@ class YoutubeDL(object):
     the downloader (see youtube_dl/downloader/common.py):
     nopart, updatetime, buffersize, ratelimit, min_filesize, max_filesize, test,
     noresizebuffer, retries, continuedl, noprogress, consoletitle,
-    xattr_set_filesize, external_downloader_args.
+    xattr_set_filesize, external_downloader_args, hls_use_mpegts.
 
     The following options are used by the post processors:
     prefer_ffmpeg:     If True, use ffmpeg instead of avconv if both are available,
@@ -495,7 +498,7 @@ class YoutubeDL(object):
                     tb = ''
                     if hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]:
                         tb += ''.join(traceback.format_exception(*sys.exc_info()[1].exc_info))
-                    tb += compat_str(traceback.format_exc())
+                    tb += encode_compat_str(traceback.format_exc())
                 else:
                     tb_data = traceback.format_list(traceback.extract_stack())
                     tb = ''.join(tb_data)
@@ -602,12 +605,12 @@ class YoutubeDL(object):
             if rejecttitle:
                 if re.search(rejecttitle, title, re.IGNORECASE):
                     return '"' + title + '" title matched reject pattern "' + rejecttitle + '"'
-        date = info_dict.get('upload_date', None)
+        date = info_dict.get('upload_date')
         if date is not None:
             dateRange = self.params.get('daterange', DateRange())
             if date not in dateRange:
                 return '%s upload date is not in range %s' % (date_from_str(date).isoformat(), dateRange)
-        view_count = info_dict.get('view_count', None)
+        view_count = info_dict.get('view_count')
         if view_count is not None:
             min_views = self.params.get('min_views')
             if min_views is not None and view_count < min_views:
@@ -674,14 +677,14 @@ class YoutubeDL(object):
                     return self.process_ie_result(ie_result, download, extra_info)
                 else:
                     return ie_result
-            except ExtractorError as de:  # An error we somewhat expected
-                self.report_error(compat_str(de), de.format_traceback())
+            except ExtractorError as e:  # An error we somewhat expected
+                self.report_error(compat_str(e), e.format_traceback())
                 break
             except MaxDownloadsReached:
                 raise
             except Exception as e:
                 if self.params.get('ignoreerrors', False):
-                    self.report_error(compat_str(e), tb=compat_str(traceback.format_exc()))
+                    self.report_error(error_to_compat_str(e), tb=encode_compat_str(traceback.format_exc()))
                     break
                 else:
                     raise
@@ -704,7 +707,6 @@ class YoutubeDL(object):
         It will also download the videos if 'download'.
         Returns the resolved ie_result.
         """
-
         result_type = ie_result.get('_type', 'video')
 
         if result_type in ('url', 'url_transparent'):
@@ -733,7 +735,7 @@ class YoutubeDL(object):
 
             force_properties = dict(
                 (k, v) for k, v in ie_result.items() if v is not None)
-            for f in ('_type', 'url'):
+            for f in ('_type', 'url', 'ie_key'):
                 if f in force_properties:
                     del force_properties[f]
             new_result = info.copy()
@@ -745,18 +747,18 @@ class YoutubeDL(object):
                 new_result, download=download, extra_info=extra_info)
         elif result_type == 'playlist' or result_type == 'multi_video':
             # We process each entry in the playlist
-            playlist = ie_result.get('title', None) or ie_result.get('id', None)
+            playlist = ie_result.get('title') or ie_result.get('id')
             self.to_screen('[download] Downloading playlist: %s' % playlist)
 
             playlist_results = []
 
             playliststart = self.params.get('playliststart', 1) - 1
-            playlistend = self.params.get('playlistend', None)
+            playlistend = self.params.get('playlistend')
             # For backwards compatibility, interpret -1 as whole list
             if playlistend == -1:
                 playlistend = None
 
-            playlistitems_str = self.params.get('playlist_items', None)
+            playlistitems_str = self.params.get('playlist_items')
             playlistitems = None
             if playlistitems_str is not None:
                 def iter_playlistitems(format):
@@ -896,11 +898,14 @@ class YoutubeDL(object):
             STR_OPERATORS = {
                 '=': operator.eq,
                 '!=': operator.ne,
+                '^=': lambda attr, value: attr.startswith(value),
+                '$=': lambda attr, value: attr.endswith(value),
+                '*=': lambda attr, value: value in attr,
             }
             str_operator_rex = re.compile(r'''(?x)
                 \s*(?P<key>ext|acodec|vcodec|container|protocol)
                 \s*(?P<op>%s)(?P<none_inclusive>\s*\?)?
-                \s*(?P<value>[a-zA-Z0-9_-]+)
+                \s*(?P<value>[a-zA-Z0-9._-]+)
                 \s*$
                 ''' % '|'.join(map(re.escape, STR_OPERATORS.keys())))
             m = str_operator_rex.search(filter_spec)
@@ -1110,6 +1115,12 @@ class YoutubeDL(object):
                                           'contain the video, try using '
                                           '"-f %s+%s"' % (format_2, format_1))
                         return
+                    # Formats must be opposite (video+audio)
+                    if formats_info[0].get('acodec') == 'none' and formats_info[1].get('acodec') == 'none':
+                        self.report_error(
+                            'Both formats %s and %s are video-only, you must specify "-f video+audio"'
+                            % (format_1, format_2))
+                        return
                     output_ext = (
                         formats_info[0]['ext']
                         if self.params.get('merge_output_format') is None
@@ -1236,6 +1247,12 @@ class YoutubeDL(object):
             except (ValueError, OverflowError, OSError):
                 pass
 
+        # Auto generate title fields corresponding to the *_number fields when missing
+        # in order to always have clean titles. This is very common for TV series.
+        for field in ('chapter', 'season', 'episode'):
+            if info_dict.get('%s_number' % field) is not None and not info_dict.get(field):
+                info_dict[field] = '%s %d' % (field.capitalize(), info_dict['%s_number' % field])
+
         subtitles = info_dict.get('subtitles')
         if subtitles:
             for _, subtitle in subtitles.items():
@@ -1271,6 +1288,9 @@ class YoutubeDL(object):
 
             if format.get('format_id') is None:
                 format['format_id'] = compat_str(i)
+            else:
+                # Sanitize format_id from characters used in format selector expression
+                format['format_id'] = re.sub('[\s,/+\[\]()]', '_', format['format_id'])
             format_id = format['format_id']
             if format_id not in formats_dict:
                 formats_dict[format_id] = []
@@ -1292,6 +1312,10 @@ class YoutubeDL(object):
             # Automatically determine file extension if missing
             if 'ext' not in format:
                 format['ext'] = determine_ext(format['url']).lower()
+            # Automatically determine protocol if missing (useful for format
+            # selection purposes)
+            if 'protocol' not in format:
+                format['protocol'] = determine_protocol(format)
             # Add HTTP headers, so that external programs can use them from the
             # json output
             full_format_info = info_dict.copy()
@@ -1304,7 +1328,7 @@ class YoutubeDL(object):
             # only set the 'formats' fields if the original info_dict list them
             # otherwise we end up with a circular reference, the first (and unique)
             # element in the 'formats' field in info_dict is info_dict itself,
-            # wich can't be exported to json
+            # which can't be exported to json
             info_dict['formats'] = formats
         if self.params.get('listformats'):
             self.list_formats(info_dict)
@@ -1317,7 +1341,6 @@ class YoutubeDL(object):
         if req_format is None:
             req_format_list = []
             if (self.params.get('outtmpl', DEFAULT_OUTTMPL) != '-' and
-                    info_dict['extractor'] in ['youtube', 'ted'] and
                     not info_dict.get('is_live')):
                 merger = FFmpegMergerPP(self)
                 if merger.available and merger.can_merge():
@@ -1453,7 +1476,7 @@ class YoutubeDL(object):
             if dn and not os.path.exists(dn):
                 os.makedirs(dn)
         except (OSError, IOError) as err:
-            self.report_error('unable to create directory ' + compat_str(err))
+            self.report_error('unable to create directory ' + error_to_compat_str(err))
             return
 
         if self.params.get('writedescription', False):
@@ -1504,7 +1527,7 @@ class YoutubeDL(object):
                             sub_info['url'], info_dict['id'], note=False)
                     except ExtractorError as err:
                         self.report_warning('Unable to download subtitle for "%s": %s' %
-                                            (sub_lang, compat_str(err.cause)))
+                                            (sub_lang, error_to_compat_str(err.cause)))
                         continue
                 try:
                     sub_filename = subtitles_filename(filename, sub_lang, sub_format)
@@ -1774,7 +1797,7 @@ class YoutubeDL(object):
             else:
                 res = '%sp' % format['height']
         elif format.get('width') is not None:
-            res = '?x%d' % format['width']
+            res = '%dx?' % format['width']
         else:
             res = default
         return res
@@ -1783,6 +1806,10 @@ class YoutubeDL(object):
         res = ''
         if fdict.get('ext') in ['f4f', 'f4m']:
             res += '(unsupported) '
+        if fdict.get('language'):
+            if res:
+                res += ' '
+            res += '[%s]' % fdict['language']
         if fdict.get('format_note') is not None:
             res += fdict['format_note'] + ' '
         if fdict.get('tbr') is not None:
@@ -1974,8 +2001,19 @@ class YoutubeDL(object):
         https_handler = make_HTTPS_handler(self.params, debuglevel=debuglevel)
         ydlh = YoutubeDLHandler(self.params, debuglevel=debuglevel)
         data_handler = compat_urllib_request_DataHandler()
+
+        # When passing our own FileHandler instance, build_opener won't add the
+        # default FileHandler and allows us to disable the file protocol, which
+        # can be used for malicious purposes (see
+        # https://github.com/rg3/youtube-dl/issues/8227)
+        file_handler = compat_urllib_request.FileHandler()
+
+        def file_open(*args, **kwargs):
+            raise compat_urllib_error.URLError('file:// scheme is explicitly disabled in youtube-dl for security reasons')
+        file_handler.file_open = file_open
+
         opener = compat_urllib_request.build_opener(
-            proxy_handler, https_handler, cookie_processor, ydlh, data_handler)
+            proxy_handler, https_handler, cookie_processor, ydlh, data_handler, file_handler)
 
         # Delete the default user-agent header, which would otherwise apply in
         # cases where our custom HTTP handler doesn't come into play
@@ -2033,4 +2071,4 @@ class YoutubeDL(object):
                                    (info_dict['extractor'], info_dict['id'], thumb_display_id, thumb_filename))
                 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
                     self.report_warning('Unable to download thumbnail "%s": %s' %
-                                        (t['url'], compat_str(err)))
+                                        (t['url'], error_to_compat_str(err)))