youtube_dl/YoutubeDL.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 from __future__ import absolute_import, unicode_literals
   5
   6 import collections
   7 import errno
   8 import io
   9 import json
  10 import os
  11 import platform
  12 import re
  13 import shutil
  14 import subprocess
  15 import socket
  16 import sys
  17 import time
  18 import traceback
  19
  20 if os.name == 'nt':
  21     import ctypes
  22
  23 from .utils import (
  24     compat_cookiejar,
  25     compat_http_client,
  26     compat_str,
  27     compat_urllib_error,
  28     compat_urllib_request,
  29     ContentTooShortError,
  30     date_from_str,
  31     DateRange,
  32     determine_ext,
  33     DownloadError,
  34     encodeFilename,
  35     ExtractorError,
  36     format_bytes,
  37     formatSeconds,
  38     get_term_width,
  39     locked_file,
  40     make_HTTPS_handler,
  41     MaxDownloadsReached,
  42     PagedList,
  43     PostProcessingError,
  44     platform_name,
  45     preferredencoding,
  46     SameFileError,
  47     sanitize_filename,
  48     subtitles_filename,
  49     takewhile_inclusive,
  50     UnavailableVideoError,
  51     url_basename,
  52     write_json_file,
  53     write_string,
  54     YoutubeDLHandler,
  55     prepend_extension,
  56 )
  57 from .extractor import get_info_extractor, gen_extractors
  58 from .downloader import get_suitable_downloader
  59 from .postprocessor import FFmpegMergerPP
  60 from .version import __version__
  61
  62
  63 class YoutubeDL(object):
  64     """YoutubeDL class.
  65
  66     YoutubeDL objects are the ones responsible of downloading the
  67     actual video file and writing it to disk if the user has requested
  68     it, among some other tasks. In most cases there should be one per
  69     program. As, given a video URL, the downloader doesn't know how to
  70     extract all the needed information, task that InfoExtractors do, it
  71     has to pass the URL to one of them.
  72
  73     For this, YoutubeDL objects have a method that allows
  74     InfoExtractors to be registered in a given order. When it is passed
  75     a URL, the YoutubeDL object handles it to the first InfoExtractor it
  76     finds that reports being able to handle it. The InfoExtractor extracts
  77     all the information about the video or videos the URL refers to, and
  78     YoutubeDL process the extracted information, possibly using a File
  79     Downloader to download the video.
  80
  81     YoutubeDL objects accept a lot of parameters. In order not to saturate
  82     the object constructor with arguments, it receives a dictionary of
  83     options instead. These options are available through the params
  84     attribute for the InfoExtractors to use. The YoutubeDL also
  85     registers itself as the downloader in charge for the InfoExtractors
  86     that are added to it, so this is a "mutual registration".
  87
  88     Available options:
  89
  90     username:          Username for authentication purposes.
  91     password:          Password for authentication purposes.
  92     videopassword:     Password for acces a video.
  93     usenetrc:          Use netrc for authentication instead.
  94     verbose:           Print additional info to stdout.
  95     quiet:             Do not print messages to stdout.
  96     forceurl:          Force printing final URL.
  97     forcetitle:        Force printing title.
  98     forceid:           Force printing ID.
  99     forcethumbnail:    Force printing thumbnail URL.
 100     forcedescription:  Force printing description.
 101     forcefilename:     Force printing final filename.
 102     forceduration:     Force printing duration.
 103     forcejson:         Force printing info_dict as JSON.
 104     simulate:          Do not download the video files.
 105     format:            Video format code.
 106     format_limit:      Highest quality format to try.
 107     outtmpl:           Template for output names.
 108     restrictfilenames: Do not allow "&" and spaces in file names
 109     ignoreerrors:      Do not stop on download errors.
 110     nooverwrites:      Prevent overwriting files.
 111     playliststart:     Playlist item to start at.
 112     playlistend:       Playlist item to end at.
 113     matchtitle:        Download only matching titles.
 114     rejecttitle:       Reject downloads for matching titles.
 115     logger:            Log messages to a logging.Logger instance.
 116     logtostderr:       Log messages to stderr instead of stdout.
 117     writedescription:  Write the video description to a .description file
 118     writeinfojson:     Write the video description to a .info.json file
 119     writeannotations:  Write the video annotations to a .annotations.xml file
 120     writethumbnail:    Write the thumbnail image to a file
 121     writesubtitles:    Write the video subtitles to a file
 122     writeautomaticsub: Write the automatic subtitles to a file
 123     allsubtitles:      Downloads all the subtitles of the video
 124                        (requires writesubtitles or writeautomaticsub)
 125     listsubtitles:     Lists all available subtitles for the video
 126     subtitlesformat:   Subtitle format [srt/sbv/vtt] (default=srt)
 127     subtitleslangs:    List of languages of the subtitles to download
 128     keepvideo:         Keep the video file after post-processing
 129     daterange:         A DateRange object, download only if the upload_date is in the range.
 130     skip_download:     Skip the actual download of the video file
 131     cachedir:          Location of the cache files in the filesystem.
 132                        None to disable filesystem cache.
 133     noplaylist:        Download single video instead of a playlist if in doubt.
 134     age_limit:         An integer representing the user's age in years.
 135                        Unsuitable videos for the given age are skipped.
 136     min_views:         An integer representing the minimum view count the video
 137                        must have in order to not be skipped.
 138                        Videos without view count information are always
 139                        downloaded. None for no limit.
 140     max_views:         An integer representing the maximum view count.
 141                        Videos that are more popular than that are not
 142                        downloaded.
 143                        Videos without view count information are always
 144                        downloaded. None for no limit.
 145     download_archive:  File name of a file where all downloads are recorded.
 146                        Videos already present in the file are not downloaded
 147                        again.
 148     cookiefile:        File name where cookies should be read from and dumped to.
 149     nocheckcertificate:Do not verify SSL certificates
 150     proxy:             URL of the proxy server to use
 151     socket_timeout:    Time to wait for unresponsive hosts, in seconds
 152     bidi_workaround:   Work around buggy terminals without bidirectional text
 153                        support, using fridibi
 154     debug_printtraffic:Print out sent and received HTTP traffic
 155     include_ads:       Download ads as well
 156     default_search:    Prepend this string if an input url is not valid.
 157                        'auto' for elaborate guessing
 158
 159     The following parameters are not used by YoutubeDL itself, they are used by
 160     the FileDownloader:
 161     nopart, updatetime, buffersize, ratelimit, min_filesize, max_filesize, test,
 162     noresizebuffer, retries, continuedl, noprogress, consoletitle
 163
 164     The following options are used by the post processors:
 165     prefer_ffmpeg:     If True, use ffmpeg instead of avconv if both are available,
 166                        otherwise prefer avconv.
 167     """
 168
 169     params = None
 170     _ies = []
 171     _pps = []
 172     _download_retcode = None
 173     _num_downloads = None
 174     _screen_file = None
 175
 176     def __init__(self, params=None):
 177         """Create a FileDownloader object with the given options."""
 178         if params is None:
 179             params = {}
 180         self._ies = []
 181         self._ies_instances = {}
 182         self._pps = []
 183         self._progress_hooks = []
 184         self._download_retcode = 0
 185         self._num_downloads = 0
 186         self._screen_file = [sys.stdout, sys.stderr][params.get('logtostderr', False)]
 187         self._err_file = sys.stderr
 188         self.params = params
 189
 190         if params.get('bidi_workaround', False):
 191             try:
 192                 import pty
 193                 master, slave = pty.openpty()
 194                 width = get_term_width()
 195                 if width is None:
 196                     width_args = []
 197                 else:
 198                     width_args = ['-w', str(width)]
 199                 sp_kwargs = dict(
 200                     stdin=subprocess.PIPE,
 201                     stdout=slave,
 202                     stderr=self._err_file)
 203                 try:
 204                     self._output_process = subprocess.Popen(
 205                         ['bidiv'] + width_args, **sp_kwargs
 206                     )
 207                 except OSError:
 208                     self._output_process = subprocess.Popen(
 209                         ['fribidi', '-c', 'UTF-8'] + width_args, **sp_kwargs)
 210                 self._output_channel = os.fdopen(master, 'rb')
 211             except OSError as ose:
 212                 if ose.errno == 2:
 213                     self.report_warning('Could not find fribidi executable, ignoring --bidi-workaround . Make sure that  fribidi  is an executable file in one of the directories in your $PATH.')
 214                 else:
 215                     raise
 216
 217         if (sys.version_info >= (3,) and sys.platform != 'win32' and
 218                 sys.getfilesystemencoding() in ['ascii', 'ANSI_X3.4-1968']
 219                 and not params['restrictfilenames']):
 220             # On Python 3, the Unicode filesystem API will throw errors (#1474)
 221             self.report_warning(
 222                 'Assuming --restrict-filenames since file system encoding '
 223                 'cannot encode all charactes. '
 224                 'Set the LC_ALL environment variable to fix this.')
 225             self.params['restrictfilenames'] = True
 226
 227         if '%(stitle)s' in self.params.get('outtmpl', ''):
 228             self.report_warning('%(stitle)s is deprecated. Use the %(title)s and the --restrict-filenames flag(which also secures %(uploader)s et al) instead.')
 229
 230         self._setup_opener()
 231
 232     def add_info_extractor(self, ie):
 233         """Add an InfoExtractor object to the end of the list."""
 234         self._ies.append(ie)
 235         self._ies_instances[ie.ie_key()] = ie
 236         ie.set_downloader(self)
 237
 238     def get_info_extractor(self, ie_key):
 239         """
 240         Get an instance of an IE with name ie_key, it will try to get one from
 241         the _ies list, if there's no instance it will create a new one and add
 242         it to the extractor list.
 243         """
 244         ie = self._ies_instances.get(ie_key)
 245         if ie is None:
 246             ie = get_info_extractor(ie_key)()
 247             self.add_info_extractor(ie)
 248         return ie
 249
 250     def add_default_info_extractors(self):
 251         """
 252         Add the InfoExtractors returned by gen_extractors to the end of the list
 253         """
 254         for ie in gen_extractors():
 255             self.add_info_extractor(ie)
 256
 257     def add_post_processor(self, pp):
 258         """Add a PostProcessor object to the end of the chain."""
 259         self._pps.append(pp)
 260         pp.set_downloader(self)
 261
 262     def add_progress_hook(self, ph):
 263         """Add the progress hook (currently only for the file downloader)"""
 264         self._progress_hooks.append(ph)
 265
 266     def _bidi_workaround(self, message):
 267         if not hasattr(self, '_output_channel'):
 268             return message
 269
 270         assert hasattr(self, '_output_process')
 271         assert type(message) == type('')
 272         line_count = message.count('\n') + 1
 273         self._output_process.stdin.write((message + '\n').encode('utf-8'))
 274         self._output_process.stdin.flush()
 275         res = ''.join(self._output_channel.readline().decode('utf-8')
 276                        for _ in range(line_count))
 277         return res[:-len('\n')]
 278
 279     def to_screen(self, message, skip_eol=False):
 280         """Print message to stdout if not in quiet mode."""
 281         return self.to_stdout(message, skip_eol, check_quiet=True)
 282
 283     def to_stdout(self, message, skip_eol=False, check_quiet=False):
 284         """Print message to stdout if not in quiet mode."""
 285         if self.params.get('logger'):
 286             self.params['logger'].debug(message)
 287         elif not check_quiet or not self.params.get('quiet', False):
 288             message = self._bidi_workaround(message)
 289             terminator = ['\n', ''][skip_eol]
 290             output = message + terminator
 291
 292             write_string(output, self._screen_file)
 293
 294     def to_stderr(self, message):
 295         """Print message to stderr."""
 296         assert type(message) == type('')
 297         if self.params.get('logger'):
 298             self.params['logger'].error(message)
 299         else:
 300             message = self._bidi_workaround(message)
 301             output = message + '\n'
 302             write_string(output, self._err_file)
 303
 304     def to_console_title(self, message):
 305         if not self.params.get('consoletitle', False):
 306             return
 307         if os.name == 'nt' and ctypes.windll.kernel32.GetConsoleWindow():
 308             # c_wchar_p() might not be necessary if `message` is
 309             # already of type unicode()
 310             ctypes.windll.kernel32.SetConsoleTitleW(ctypes.c_wchar_p(message))
 311         elif 'TERM' in os.environ:
 312             write_string('\033]0;%s\007' % message, self._screen_file)
 313
 314     def save_console_title(self):
 315         if not self.params.get('consoletitle', False):
 316             return
 317         if 'TERM' in os.environ:
 318             # Save the title on stack
 319             write_string('\033[22;0t', self._screen_file)
 320
 321     def restore_console_title(self):
 322         if not self.params.get('consoletitle', False):
 323             return
 324         if 'TERM' in os.environ:
 325             # Restore the title from stack
 326             write_string('\033[23;0t', self._screen_file)
 327
 328     def __enter__(self):
 329         self.save_console_title()
 330         return self
 331
 332     def __exit__(self, *args):
 333         self.restore_console_title()
 334
 335         if self.params.get('cookiefile') is not None:
 336             self.cookiejar.save()
 337
 338     def trouble(self, message=None, tb=None):
 339         """Determine action to take when a download problem appears.
 340
 341         Depending on if the downloader has been configured to ignore
 342         download errors or not, this method may throw an exception or
 343         not when errors are found, after printing the message.
 344
 345         tb, if given, is additional traceback information.
 346         """
 347         if message is not None:
 348             self.to_stderr(message)
 349         if self.params.get('verbose'):
 350             if tb is None:
 351                 if sys.exc_info()[0]:  # if .trouble has been called from an except block
 352                     tb = ''
 353                     if hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]:
 354                         tb += ''.join(traceback.format_exception(*sys.exc_info()[1].exc_info))
 355                     tb += compat_str(traceback.format_exc())
 356                 else:
 357                     tb_data = traceback.format_list(traceback.extract_stack())
 358                     tb = ''.join(tb_data)
 359             self.to_stderr(tb)
 360         if not self.params.get('ignoreerrors', False):
 361             if sys.exc_info()[0] and hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]:
 362                 exc_info = sys.exc_info()[1].exc_info
 363             else:
 364                 exc_info = sys.exc_info()
 365             raise DownloadError(message, exc_info)
 366         self._download_retcode = 1
 367
 368     def report_warning(self, message):
 369         '''
 370         Print the message to stderr, it will be prefixed with 'WARNING:'
 371         If stderr is a tty file the 'WARNING:' will be colored
 372         '''
 373         if self.params.get('logger') is not None:
 374             self.params['logger'].warning(message)
 375         else:
 376             if self._err_file.isatty() and os.name != 'nt':
 377                 _msg_header = '\033[0;33mWARNING:\033[0m'
 378             else:
 379                 _msg_header = 'WARNING:'
 380             warning_message = '%s %s' % (_msg_header, message)
 381             self.to_stderr(warning_message)
 382
 383     def report_error(self, message, tb=None):
 384         '''
 385         Do the same as trouble, but prefixes the message with 'ERROR:', colored
 386         in red if stderr is a tty file.
 387         '''
 388         if self._err_file.isatty() and os.name != 'nt':
 389             _msg_header = '\033[0;31mERROR:\033[0m'
 390         else:
 391             _msg_header = 'ERROR:'
 392         error_message = '%s %s' % (_msg_header, message)
 393         self.trouble(error_message, tb)
 394
 395     def report_file_already_downloaded(self, file_name):
 396         """Report file has already been fully downloaded."""
 397         try:
 398             self.to_screen('[download] %s has already been downloaded' % file_name)
 399         except UnicodeEncodeError:
 400             self.to_screen('[download] The file has already been downloaded')
 401
 402     def prepare_filename(self, info_dict):
 403         """Generate the output filename."""
 404         try:
 405             template_dict = dict(info_dict)
 406
 407             template_dict['epoch'] = int(time.time())
 408             autonumber_size = self.params.get('autonumber_size')
 409             if autonumber_size is None:
 410                 autonumber_size = 5
 411             autonumber_templ = '%0' + str(autonumber_size) + 'd'
 412             template_dict['autonumber'] = autonumber_templ % self._num_downloads
 413             if template_dict.get('playlist_index') is not None:
 414                 template_dict['playlist_index'] = '%05d' % template_dict['playlist_index']
 415             if template_dict.get('resolution') is None:
 416                 if template_dict.get('width') and template_dict.get('height'):
 417                     template_dict['resolution'] = '%dx%d' % (template_dict['width'], template_dict['height'])
 418                 elif template_dict.get('height'):
 419                     template_dict['resolution'] = '%sp' % template_dict['height']
 420                 elif template_dict.get('width'):
 421                     template_dict['resolution'] = '?x%d' % template_dict['width']
 422
 423             sanitize = lambda k, v: sanitize_filename(
 424                 compat_str(v),
 425                 restricted=self.params.get('restrictfilenames'),
 426                 is_id=(k == 'id'))
 427             template_dict = dict((k, sanitize(k, v))
 428                                  for k, v in template_dict.items()
 429                                  if v is not None)
 430             template_dict = collections.defaultdict(lambda: 'NA', template_dict)
 431
 432             tmpl = os.path.expanduser(self.params['outtmpl'])
 433             filename = tmpl % template_dict
 434             return filename
 435         except ValueError as err:
 436             self.report_error('Error in output template: ' + str(err) + ' (encoding: ' + repr(preferredencoding()) + ')')
 437             return None
 438
 439     def _match_entry(self, info_dict):
 440         """ Returns None iff the file should be downloaded """
 441
 442         video_title = info_dict.get('title', info_dict.get('id', 'video'))
 443         if 'title' in info_dict:
 444             # This can happen when we're just evaluating the playlist
 445             title = info_dict['title']
 446             matchtitle = self.params.get('matchtitle', False)
 447             if matchtitle:
 448                 if not re.search(matchtitle, title, re.IGNORECASE):
 449                     return '"' + title + '" title did not match pattern "' + matchtitle + '"'
 450             rejecttitle = self.params.get('rejecttitle', False)
 451             if rejecttitle:
 452                 if re.search(rejecttitle, title, re.IGNORECASE):
 453                     return '"' + title + '" title matched reject pattern "' + rejecttitle + '"'
 454         date = info_dict.get('upload_date', None)
 455         if date is not None:
 456             dateRange = self.params.get('daterange', DateRange())
 457             if date not in dateRange:
 458                 return '%s upload date is not in range %s' % (date_from_str(date).isoformat(), dateRange)
 459         view_count = info_dict.get('view_count', None)
 460         if view_count is not None:
 461             min_views = self.params.get('min_views')
 462             if min_views is not None and view_count < min_views:
 463                 return 'Skipping %s, because it has not reached minimum view count (%d/%d)' % (video_title, view_count, min_views)
 464             max_views = self.params.get('max_views')
 465             if max_views is not None and view_count > max_views:
 466                 return 'Skipping %s, because it has exceeded the maximum view count (%d/%d)' % (video_title, view_count, max_views)
 467         age_limit = self.params.get('age_limit')
 468         if age_limit is not None:
 469             if age_limit < info_dict.get('age_limit', 0):
 470                 return 'Skipping "' + title + '" because it is age restricted'
 471         if self.in_download_archive(info_dict):
 472             return '%s has already been recorded in archive' % video_title
 473         return None
 474
 475     @staticmethod
 476     def add_extra_info(info_dict, extra_info):
 477         '''Set the keys from extra_info in info dict if they are missing'''
 478         for key, value in extra_info.items():
 479             info_dict.setdefault(key, value)
 480
 481     def extract_info(self, url, download=True, ie_key=None, extra_info={},
 482                      process=True):
 483         '''
 484         Returns a list with a dictionary for each video we find.
 485         If 'download', also downloads the videos.
 486         extra_info is a dict containing the extra values to add to each result
 487          '''
 488
 489         if ie_key:
 490             ies = [self.get_info_extractor(ie_key)]
 491         else:
 492             ies = self._ies
 493
 494         for ie in ies:
 495             if not ie.suitable(url):
 496                 continue
 497
 498             if not ie.working():
 499                 self.report_warning('The program functionality for this site has been marked as broken, '
 500                                     'and will probably not work.')
 501
 502             try:
 503                 ie_result = ie.extract(url)
 504                 if ie_result is None: # Finished already (backwards compatibility; listformats and friends should be moved here)
 505                     break
 506                 if isinstance(ie_result, list):
 507                     # Backwards compatibility: old IE result format
 508                     ie_result = {
 509                         '_type': 'compat_list',
 510                         'entries': ie_result,
 511                     }
 512                 self.add_extra_info(ie_result,
 513                     {
 514                         'extractor': ie.IE_NAME,
 515                         'webpage_url': url,
 516                         'webpage_url_basename': url_basename(url),
 517                         'extractor_key': ie.ie_key(),
 518                     })
 519                 if process:
 520                     return self.process_ie_result(ie_result, download, extra_info)
 521                 else:
 522                     return ie_result
 523             except ExtractorError as de: # An error we somewhat expected
 524                 self.report_error(compat_str(de), de.format_traceback())
 525                 break
 526             except MaxDownloadsReached:
 527                 raise
 528             except Exception as e:
 529                 if self.params.get('ignoreerrors', False):
 530                     self.report_error(compat_str(e), tb=compat_str(traceback.format_exc()))
 531                     break
 532                 else:
 533                     raise
 534         else:
 535             self.report_error('no suitable InfoExtractor: %s' % url)
 536
 537     def process_ie_result(self, ie_result, download=True, extra_info={}):
 538         """
 539         Take the result of the ie(may be modified) and resolve all unresolved
 540         references (URLs, playlist items).
 541
 542         It will also download the videos if 'download'.
 543         Returns the resolved ie_result.
 544         """
 545
 546         result_type = ie_result.get('_type', 'video') # If not given we suppose it's a video, support the default old system
 547         if result_type == 'video':
 548             self.add_extra_info(ie_result, extra_info)
 549             return self.process_video_result(ie_result, download=download)
 550         elif result_type == 'url':
 551             # We have to add extra_info to the results because it may be
 552             # contained in a playlist
 553             return self.extract_info(ie_result['url'],
 554                                      download,
 555                                      ie_key=ie_result.get('ie_key'),
 556                                      extra_info=extra_info)
 557         elif result_type == 'url_transparent':
 558             # Use the information from the embedding page
 559             info = self.extract_info(
 560                 ie_result['url'], ie_key=ie_result.get('ie_key'),
 561                 extra_info=extra_info, download=False, process=False)
 562
 563             def make_result(embedded_info):
 564                 new_result = ie_result.copy()
 565                 for f in ('_type', 'url', 'ext', 'player_url', 'formats',
 566                           'entries', 'ie_key', 'duration',
 567                           'subtitles', 'annotations', 'format',
 568                           'thumbnail', 'thumbnails'):
 569                     if f in new_result:
 570                         del new_result[f]
 571                     if f in embedded_info:
 572                         new_result[f] = embedded_info[f]
 573                 return new_result
 574             new_result = make_result(info)
 575
 576             assert new_result.get('_type') != 'url_transparent'
 577             if new_result.get('_type') == 'compat_list':
 578                 new_result['entries'] = [
 579                     make_result(e) for e in new_result['entries']]
 580
 581             return self.process_ie_result(
 582                 new_result, download=download, extra_info=extra_info)
 583         elif result_type == 'playlist':
 584             # We process each entry in the playlist
 585             playlist = ie_result.get('title', None) or ie_result.get('id', None)
 586             self.to_screen('[download] Downloading playlist: %s' % playlist)
 587
 588             playlist_results = []
 589
 590             playliststart = self.params.get('playliststart', 1) - 1
 591             playlistend = self.params.get('playlistend', None)
 592             # For backwards compatibility, interpret -1 as whole list
 593             if playlistend == -1:
 594                 playlistend = None
 595
 596             if isinstance(ie_result['entries'], list):
 597                 n_all_entries = len(ie_result['entries'])
 598                 entries = ie_result['entries'][playliststart:playlistend]
 599                 n_entries = len(entries)
 600                 self.to_screen(
 601                     "[%s] playlist %s: Collected %d video ids (downloading %d of them)" %
 602                     (ie_result['extractor'], playlist, n_all_entries, n_entries))
 603             else:
 604                 assert isinstance(ie_result['entries'], PagedList)
 605                 entries = ie_result['entries'].getslice(
 606                     playliststart, playlistend)
 607                 n_entries = len(entries)
 608                 self.to_screen(
 609                     "[%s] playlist %s: Downloading %d videos" %
 610                     (ie_result['extractor'], playlist, n_entries))
 611
 612             for i, entry in enumerate(entries, 1):
 613                 self.to_screen('[download] Downloading video #%s of %s' % (i, n_entries))
 614                 extra = {
 615                     'playlist': playlist,
 616                     'playlist_index': i + playliststart,
 617                     'extractor': ie_result['extractor'],
 618                     'webpage_url': ie_result['webpage_url'],
 619                     'webpage_url_basename': url_basename(ie_result['webpage_url']),
 620                     'extractor_key': ie_result['extractor_key'],
 621                 }
 622
 623                 reason = self._match_entry(entry)
 624                 if reason is not None:
 625                     self.to_screen('[download] ' + reason)
 626                     continue
 627
 628                 entry_result = self.process_ie_result(entry,
 629                                                       download=download,
 630                                                       extra_info=extra)
 631                 playlist_results.append(entry_result)
 632             ie_result['entries'] = playlist_results
 633             return ie_result
 634         elif result_type == 'compat_list':
 635             def _fixup(r):
 636                 self.add_extra_info(r,
 637                     {
 638                         'extractor': ie_result['extractor'],
 639                         'webpage_url': ie_result['webpage_url'],
 640                         'webpage_url_basename': url_basename(ie_result['webpage_url']),
 641                         'extractor_key': ie_result['extractor_key'],
 642                     })
 643                 return r
 644             ie_result['entries'] = [
 645                 self.process_ie_result(_fixup(r), download, extra_info)
 646                 for r in ie_result['entries']
 647             ]
 648             return ie_result
 649         else:
 650             raise Exception('Invalid result type: %s' % result_type)
 651
 652     def select_format(self, format_spec, available_formats):
 653         if format_spec == 'best' or format_spec is None:
 654             return available_formats[-1]
 655         elif format_spec == 'worst':
 656             return available_formats[0]
 657         elif format_spec == 'bestaudio':
 658             audio_formats = [
 659                 f for f in available_formats
 660                 if f.get('vcodec') == 'none']
 661             if audio_formats:
 662                 return audio_formats[-1]
 663         elif format_spec == 'worstaudio':
 664             audio_formats = [
 665                 f for f in available_formats
 666                 if f.get('vcodec') == 'none']
 667             if audio_formats:
 668                 return audio_formats[0]
 669         else:
 670             extensions = ['mp4', 'flv', 'webm', '3gp']
 671             if format_spec in extensions:
 672                 filter_f = lambda f: f['ext'] == format_spec
 673             else:
 674                 filter_f = lambda f: f['format_id'] == format_spec
 675             matches = list(filter(filter_f, available_formats))
 676             if matches:
 677                 return matches[-1]
 678         return None
 679
 680     def process_video_result(self, info_dict, download=True):
 681         assert info_dict.get('_type', 'video') == 'video'
 682
 683         if 'playlist' not in info_dict:
 684             # It isn't part of a playlist
 685             info_dict['playlist'] = None
 686             info_dict['playlist_index'] = None
 687
 688         if 'display_id' not in info_dict and 'id' in info_dict:
 689             info_dict['display_id'] = info_dict['id']
 690
 691         # This extractors handle format selection themselves
 692         if info_dict['extractor'] in ['Youku']:
 693             if download:
 694                 self.process_info(info_dict)
 695             return info_dict
 696
 697         # We now pick which formats have to be downloaded
 698         if info_dict.get('formats') is None:
 699             # There's only one format available
 700             formats = [info_dict]
 701         else:
 702             formats = info_dict['formats']
 703
 704         # We check that all the formats have the format and format_id fields
 705         for (i, format) in enumerate(formats):
 706             if format.get('format_id') is None:
 707                 format['format_id'] = compat_str(i)
 708             if format.get('format') is None:
 709                 format['format'] = '{id} - {res}{note}'.format(
 710                     id=format['format_id'],
 711                     res=self.format_resolution(format),
 712                     note=' ({0})'.format(format['format_note']) if format.get('format_note') is not None else '',
 713                 )
 714             # Automatically determine file extension if missing
 715             if 'ext' not in format:
 716                 format['ext'] = determine_ext(format['url'])
 717
 718         format_limit = self.params.get('format_limit', None)
 719         if format_limit:
 720             formats = list(takewhile_inclusive(
 721                 lambda f: f['format_id'] != format_limit, formats
 722             ))
 723
 724         # TODO Central sorting goes here
 725
 726         if formats[0] is not info_dict:
 727             # only set the 'formats' fields if the original info_dict list them
 728             # otherwise we end up with a circular reference, the first (and unique)
 729             # element in the 'formats' field in info_dict is info_dict itself,
 730             # wich can't be exported to json
 731             info_dict['formats'] = formats
 732         if self.params.get('listformats', None):
 733             self.list_formats(info_dict)
 734             return
 735
 736         req_format = self.params.get('format')
 737         if req_format is None:
 738             req_format = 'best'
 739         formats_to_download = []
 740         # The -1 is for supporting YoutubeIE
 741         if req_format in ('-1', 'all'):
 742             formats_to_download = formats
 743         else:
 744             # We can accept formats requested in the format: 34/5/best, we pick
 745             # the first that is available, starting from left
 746             req_formats = req_format.split('/')
 747             for rf in req_formats:
 748                 if re.match(r'.+?\+.+?', rf) is not None:
 749                     # Two formats have been requested like '137+139'
 750                     format_1, format_2 = rf.split('+')
 751                     formats_info = (self.select_format(format_1, formats),
 752                         self.select_format(format_2, formats))
 753                     if all(formats_info):
 754                         selected_format = {
 755                             'requested_formats': formats_info,
 756                             'format': rf,
 757                             'ext': formats_info[0]['ext'],
 758                         }
 759                     else:
 760                         selected_format = None
 761                 else:
 762                     selected_format = self.select_format(rf, formats)
 763                 if selected_format is not None:
 764                     formats_to_download = [selected_format]
 765                     break
 766         if not formats_to_download:
 767             raise ExtractorError('requested format not available',
 768                                  expected=True)
 769
 770         if download:
 771             if len(formats_to_download) > 1:
 772                 self.to_screen('[info] %s: downloading video in %s formats' % (info_dict['id'], len(formats_to_download)))
 773             for format in formats_to_download:
 774                 new_info = dict(info_dict)
 775                 new_info.update(format)
 776                 self.process_info(new_info)
 777         # We update the info dict with the best quality format (backwards compatibility)
 778         info_dict.update(formats_to_download[-1])
 779         return info_dict
 780
 781     def process_info(self, info_dict):
 782         """Process a single resolved IE result."""
 783
 784         assert info_dict.get('_type', 'video') == 'video'
 785
 786         max_downloads = self.params.get('max_downloads')
 787         if max_downloads is not None:
 788             if self._num_downloads >= int(max_downloads):
 789                 raise MaxDownloadsReached()
 790
 791         info_dict['fulltitle'] = info_dict['title']
 792         if len(info_dict['title']) > 200:
 793             info_dict['title'] = info_dict['title'][:197] + '...'
 794
 795         # Keep for backwards compatibility
 796         info_dict['stitle'] = info_dict['title']
 797
 798         if not 'format' in info_dict:
 799             info_dict['format'] = info_dict['ext']
 800
 801         reason = self._match_entry(info_dict)
 802         if reason is not None:
 803             self.to_screen('[download] ' + reason)
 804             return
 805
 806         self._num_downloads += 1
 807
 808         filename = self.prepare_filename(info_dict)
 809
 810         # Forced printings
 811         if self.params.get('forcetitle', False):
 812             self.to_stdout(info_dict['fulltitle'])
 813         if self.params.get('forceid', False):
 814             self.to_stdout(info_dict['id'])
 815         if self.params.get('forceurl', False):
 816             # For RTMP URLs, also include the playpath
 817             self.to_stdout(info_dict['url'] + info_dict.get('play_path', ''))
 818         if self.params.get('forcethumbnail', False) and info_dict.get('thumbnail') is not None:
 819             self.to_stdout(info_dict['thumbnail'])
 820         if self.params.get('forcedescription', False) and info_dict.get('description') is not None:
 821             self.to_stdout(info_dict['description'])
 822         if self.params.get('forcefilename', False) and filename is not None:
 823             self.to_stdout(filename)
 824         if self.params.get('forceduration', False) and info_dict.get('duration') is not None:
 825             self.to_stdout(formatSeconds(info_dict['duration']))
 826         if self.params.get('forceformat', False):
 827             self.to_stdout(info_dict['format'])
 828         if self.params.get('forcejson', False):
 829             info_dict['_filename'] = filename
 830             self.to_stdout(json.dumps(info_dict))
 831
 832         # Do nothing else if in simulate mode
 833         if self.params.get('simulate', False):
 834             return
 835
 836         if filename is None:
 837             return
 838
 839         try:
 840             dn = os.path.dirname(encodeFilename(filename))
 841             if dn != '' and not os.path.exists(dn):
 842                 os.makedirs(dn)
 843         except (OSError, IOError) as err:
 844             self.report_error('unable to create directory ' + compat_str(err))
 845             return
 846
 847         if self.params.get('writedescription', False):
 848             descfn = filename + '.description'
 849             if self.params.get('nooverwrites', False) and os.path.exists(encodeFilename(descfn)):
 850                 self.to_screen('[info] Video description is already present')
 851             else:
 852                 try:
 853                     self.to_screen('[info] Writing video description to: ' + descfn)
 854                     with io.open(encodeFilename(descfn), 'w', encoding='utf-8') as descfile:
 855                         descfile.write(info_dict['description'])
 856                 except (KeyError, TypeError):
 857                     self.report_warning('There\'s no description to write.')
 858                 except (OSError, IOError):
 859                     self.report_error('Cannot write description file ' + descfn)
 860                     return
 861
 862         if self.params.get('writeannotations', False):
 863             annofn = filename + '.annotations.xml'
 864             if self.params.get('nooverwrites', False) and os.path.exists(encodeFilename(annofn)):
 865                 self.to_screen('[info] Video annotations are already present')
 866             else:
 867                 try:
 868                     self.to_screen('[info] Writing video annotations to: ' + annofn)
 869                     with io.open(encodeFilename(annofn), 'w', encoding='utf-8') as annofile:
 870                         annofile.write(info_dict['annotations'])
 871                 except (KeyError, TypeError):
 872                     self.report_warning('There are no annotations to write.')
 873                 except (OSError, IOError):
 874                     self.report_error('Cannot write annotations file: ' + annofn)
 875                     return
 876
 877         subtitles_are_requested = any([self.params.get('writesubtitles', False),
 878                                        self.params.get('writeautomaticsub')])
 879
 880         if subtitles_are_requested and 'subtitles' in info_dict and info_dict['subtitles']:
 881             # subtitles download errors are already managed as troubles in relevant IE
 882             # that way it will silently go on when used with unsupporting IE
 883             subtitles = info_dict['subtitles']
 884             sub_format = self.params.get('subtitlesformat', 'srt')
 885             for sub_lang in subtitles.keys():
 886                 sub = subtitles[sub_lang]
 887                 if sub is None:
 888                     continue
 889                 try:
 890                     sub_filename = subtitles_filename(filename, sub_lang, sub_format)
 891                     if self.params.get('nooverwrites', False) and os.path.exists(encodeFilename(sub_filename)):
 892                         self.to_screen('[info] Video subtitle %s.%s is already_present' % (sub_lang, sub_format))
 893                     else:
 894                         self.to_screen('[info] Writing video subtitles to: ' + sub_filename)
 895                         with io.open(encodeFilename(sub_filename), 'w', encoding='utf-8') as subfile:
 896                                 subfile.write(sub)
 897                 except (OSError, IOError):
 898                     self.report_error('Cannot write subtitles file ' + descfn)
 899                     return
 900
 901         if self.params.get('writeinfojson', False):
 902             infofn = os.path.splitext(filename)[0] + '.info.json'
 903             if self.params.get('nooverwrites', False) and os.path.exists(encodeFilename(infofn)):
 904                 self.to_screen('[info] Video description metadata is already present')
 905             else:
 906                 self.to_screen('[info] Writing video description metadata as JSON to: ' + infofn)
 907                 try:
 908                     write_json_file(info_dict, encodeFilename(infofn))
 909                 except (OSError, IOError):
 910                     self.report_error('Cannot write metadata to JSON file ' + infofn)
 911                     return
 912
 913         if self.params.get('writethumbnail', False):
 914             if info_dict.get('thumbnail') is not None:
 915                 thumb_format = determine_ext(info_dict['thumbnail'], 'jpg')
 916                 thumb_filename = os.path.splitext(filename)[0] + '.' + thumb_format
 917                 if self.params.get('nooverwrites', False) and os.path.exists(encodeFilename(thumb_filename)):
 918                     self.to_screen('[%s] %s: Thumbnail is already present' %
 919                                    (info_dict['extractor'], info_dict['id']))
 920                 else:
 921                     self.to_screen('[%s] %s: Downloading thumbnail ...' %
 922                                    (info_dict['extractor'], info_dict['id']))
 923                     try:
 924                         uf = self.urlopen(info_dict['thumbnail'])
 925                         with open(thumb_filename, 'wb') as thumbf:
 926                             shutil.copyfileobj(uf, thumbf)
 927                         self.to_screen('[%s] %s: Writing thumbnail to: %s' %
 928                             (info_dict['extractor'], info_dict['id'], thumb_filename))
 929                     except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
 930                         self.report_warning('Unable to download thumbnail "%s": %s' %
 931                             (info_dict['thumbnail'], compat_str(err)))
 932
 933         if not self.params.get('skip_download', False):
 934             if self.params.get('nooverwrites', False) and os.path.exists(encodeFilename(filename)):
 935                 success = True
 936             else:
 937                 try:
 938                     def dl(name, info):
 939                         fd = get_suitable_downloader(info)(self, self.params)
 940                         for ph in self._progress_hooks:
 941                             fd.add_progress_hook(ph)
 942                         return fd.download(name, info)
 943                     if info_dict.get('requested_formats') is not None:
 944                         downloaded = []
 945                         success = True
 946                         merger = FFmpegMergerPP(self)
 947                         if not merger._get_executable():
 948                             postprocessors = []
 949                             self.report_warning('You have requested multiple '
 950                                 'formats but ffmpeg or avconv are not installed.'
 951                                 ' The formats won\'t be merged')
 952                         else:
 953                             postprocessors = [merger]
 954                         for f in info_dict['requested_formats']:
 955                             new_info = dict(info_dict)
 956                             new_info.update(f)
 957                             fname = self.prepare_filename(new_info)
 958                             fname = prepend_extension(fname, 'f%s' % f['format_id'])
 959                             downloaded.append(fname)
 960                             partial_success = dl(fname, new_info)
 961                             success = success and partial_success
 962                         info_dict['__postprocessors'] = postprocessors
 963                         info_dict['__files_to_merge'] = downloaded
 964                     else:
 965                         # Just a single file
 966                         success = dl(filename, info_dict)
 967                 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
 968                     self.report_error('unable to download video data: %s' % str(err))
 969                     return
 970                 except (OSError, IOError) as err:
 971                     raise UnavailableVideoError(err)
 972                 except (ContentTooShortError, ) as err:
 973                     self.report_error('content too short (expected %s bytes and served %s)' % (err.expected, err.downloaded))
 974                     return
 975
 976             if success:
 977                 try:
 978                     self.post_process(filename, info_dict)
 979                 except (PostProcessingError) as err:
 980                     self.report_error('postprocessing: %s' % str(err))
 981                     return
 982
 983         self.record_download_archive(info_dict)
 984
 985     def download(self, url_list):
 986         """Download a given list of URLs."""
 987         if (len(url_list) > 1 and
 988                 '%' not in self.params['outtmpl']
 989                 and self.params.get('max_downloads') != 1):
 990             raise SameFileError(self.params['outtmpl'])
 991
 992         for url in url_list:
 993             try:
 994                 #It also downloads the videos
 995                 self.extract_info(url)
 996             except UnavailableVideoError:
 997                 self.report_error('unable to download video')
 998             except MaxDownloadsReached:
 999                 self.to_screen('[info] Maximum number of downloaded files reached.')
1000                 raise
1001
1002         return self._download_retcode
1003
1004     def download_with_info_file(self, info_filename):
1005         with io.open(info_filename, 'r', encoding='utf-8') as f:
1006             info = json.load(f)
1007         try:
1008             self.process_ie_result(info, download=True)
1009         except DownloadError:
1010             webpage_url = info.get('webpage_url')
1011             if webpage_url is not None:
1012                 self.report_warning('The info failed to download, trying with "%s"' % webpage_url)
1013                 return self.download([webpage_url])
1014             else:
1015                 raise
1016         return self._download_retcode
1017
1018     def post_process(self, filename, ie_info):
1019         """Run all the postprocessors on the given file."""
1020         info = dict(ie_info)
1021         info['filepath'] = filename
1022         keep_video = None
1023         pps_chain = []
1024         if ie_info.get('__postprocessors') is not None:
1025             pps_chain.extend(ie_info['__postprocessors'])
1026         pps_chain.extend(self._pps)
1027         for pp in pps_chain:
1028             try:
1029                 keep_video_wish, new_info = pp.run(info)
1030                 if keep_video_wish is not None:
1031                     if keep_video_wish:
1032                         keep_video = keep_video_wish
1033                     elif keep_video is None:
1034                         # No clear decision yet, let IE decide
1035                         keep_video = keep_video_wish
1036             except PostProcessingError as e:
1037                 self.report_error(e.msg)
1038         if keep_video is False and not self.params.get('keepvideo', False):
1039             try:
1040                 self.to_screen('Deleting original file %s (pass -k to keep)' % filename)
1041                 os.remove(encodeFilename(filename))
1042             except (IOError, OSError):
1043                 self.report_warning('Unable to remove downloaded video file')
1044
1045     def _make_archive_id(self, info_dict):
1046         # Future-proof against any change in case
1047         # and backwards compatibility with prior versions
1048         extractor = info_dict.get('extractor_key')
1049         if extractor is None:
1050             if 'id' in info_dict:
1051                 extractor = info_dict.get('ie_key')  # key in a playlist
1052         if extractor is None:
1053             return None  # Incomplete video information
1054         return extractor.lower() + ' ' + info_dict['id']
1055
1056     def in_download_archive(self, info_dict):
1057         fn = self.params.get('download_archive')
1058         if fn is None:
1059             return False
1060
1061         vid_id = self._make_archive_id(info_dict)
1062         if vid_id is None:
1063             return False  # Incomplete video information
1064
1065         try:
1066             with locked_file(fn, 'r', encoding='utf-8') as archive_file:
1067                 for line in archive_file:
1068                     if line.strip() == vid_id:
1069                         return True
1070         except IOError as ioe:
1071             if ioe.errno != errno.ENOENT:
1072                 raise
1073         return False
1074
1075     def record_download_archive(self, info_dict):
1076         fn = self.params.get('download_archive')
1077         if fn is None:
1078             return
1079         vid_id = self._make_archive_id(info_dict)
1080         assert vid_id
1081         with locked_file(fn, 'a', encoding='utf-8') as archive_file:
1082             archive_file.write(vid_id + '\n')
1083
1084     @staticmethod
1085     def format_resolution(format, default='unknown'):
1086         if format.get('vcodec') == 'none':
1087             return 'audio only'
1088         if format.get('resolution') is not None:
1089             return format['resolution']
1090         if format.get('height') is not None:
1091             if format.get('width') is not None:
1092                 res = '%sx%s' % (format['width'], format['height'])
1093             else:
1094                 res = '%sp' % format['height']
1095         elif format.get('width') is not None:
1096             res = '?x%d' % format['width']
1097         else:
1098             res = default
1099         return res
1100
1101     def list_formats(self, info_dict):
1102         def format_note(fdict):
1103             res = ''
1104             if fdict.get('ext') in ['f4f', 'f4m']:
1105                 res += '(unsupported) '
1106             if fdict.get('format_note') is not None:
1107                 res += fdict['format_note'] + ' '
1108             if fdict.get('tbr') is not None:
1109                 res += '%4dk ' % fdict['tbr']
1110             if fdict.get('container') is not None:
1111                 if res:
1112                     res += ', '
1113                 res += '%s container' % fdict['container']
1114             if (fdict.get('vcodec') is not None and
1115                     fdict.get('vcodec') != 'none'):
1116                 if res:
1117                     res += ', '
1118                 res += fdict['vcodec']
1119                 if fdict.get('vbr') is not None:
1120                     res += '@'
1121             elif fdict.get('vbr') is not None and fdict.get('abr') is not None:
1122                 res += 'video@'
1123             if fdict.get('vbr') is not None:
1124                 res += '%4dk' % fdict['vbr']
1125             if fdict.get('acodec') is not None:
1126                 if res:
1127                     res += ', '
1128                 if fdict['acodec'] == 'none':
1129                     res += 'video only'
1130                 else:
1131                     res += '%-5s' % fdict['acodec']
1132             elif fdict.get('abr') is not None:
1133                 if res:
1134                     res += ', '
1135                 res += 'audio'
1136             if fdict.get('abr') is not None:
1137                 res += '@%3dk' % fdict['abr']
1138             if fdict.get('asr') is not None:
1139                 res += ' (%5dHz)' % fdict['asr']
1140             if fdict.get('filesize') is not None:
1141                 if res:
1142                     res += ', '
1143                 res += format_bytes(fdict['filesize'])
1144             return res
1145
1146         def line(format, idlen=20):
1147             return (('%-' + compat_str(idlen + 1) + 's%-10s%-12s%s') % (
1148                 format['format_id'],
1149                 format['ext'],
1150                 self.format_resolution(format),
1151                 format_note(format),
1152             ))
1153
1154         formats = info_dict.get('formats', [info_dict])
1155         idlen = max(len('format code'),
1156                     max(len(f['format_id']) for f in formats))
1157         formats_s = [line(f, idlen) for f in formats]
1158         if len(formats) > 1:
1159             formats_s[0] += (' ' if format_note(formats[0]) else '') + '(worst)'
1160             formats_s[-1] += (' ' if format_note(formats[-1]) else '') + '(best)'
1161
1162         header_line = line({
1163             'format_id': 'format code', 'ext': 'extension',
1164             'resolution': 'resolution', 'format_note': 'note'}, idlen=idlen)
1165         self.to_screen('[info] Available formats for %s:\n%s\n%s' %
1166                        (info_dict['id'], header_line, '\n'.join(formats_s)))
1167
1168     def urlopen(self, req):
1169         """ Start an HTTP download """
1170         return self._opener.open(req, timeout=self._socket_timeout)
1171
1172     def print_debug_header(self):
1173         if not self.params.get('verbose'):
1174             return
1175         write_string('[debug] youtube-dl version ' + __version__ + '\n')
1176         try:
1177             sp = subprocess.Popen(
1178                 ['git', 'rev-parse', '--short', 'HEAD'],
1179                 stdout=subprocess.PIPE, stderr=subprocess.PIPE,
1180                 cwd=os.path.dirname(os.path.abspath(__file__)))
1181             out, err = sp.communicate()
1182             out = out.decode().strip()
1183             if re.match('[0-9a-f]+', out):
1184                 write_string('[debug] Git HEAD: ' + out + '\n')
1185         except:
1186             try:
1187                 sys.exc_clear()
1188             except:
1189                 pass
1190         write_string('[debug] Python version %s - %s' %
1191                      (platform.python_version(), platform_name()) + '\n')
1192
1193         proxy_map = {}
1194         for handler in self._opener.handlers:
1195             if hasattr(handler, 'proxies'):
1196                 proxy_map.update(handler.proxies)
1197         write_string('[debug] Proxy map: ' + compat_str(proxy_map) + '\n')
1198
1199     def _setup_opener(self):
1200         timeout_val = self.params.get('socket_timeout')
1201         self._socket_timeout = 600 if timeout_val is None else float(timeout_val)
1202
1203         opts_cookiefile = self.params.get('cookiefile')
1204         opts_proxy = self.params.get('proxy')
1205
1206         if opts_cookiefile is None:
1207             self.cookiejar = compat_cookiejar.CookieJar()
1208         else:
1209             self.cookiejar = compat_cookiejar.MozillaCookieJar(
1210                 opts_cookiefile)
1211             if os.access(opts_cookiefile, os.R_OK):
1212                 self.cookiejar.load()
1213
1214         cookie_processor = compat_urllib_request.HTTPCookieProcessor(
1215             self.cookiejar)
1216         if opts_proxy is not None:
1217             if opts_proxy == '':
1218                 proxies = {}
1219             else:
1220                 proxies = {'http': opts_proxy, 'https': opts_proxy}
1221         else:
1222             proxies = compat_urllib_request.getproxies()
1223             # Set HTTPS proxy to HTTP one if given (https://github.com/rg3/youtube-dl/issues/805)
1224             if 'http' in proxies and 'https' not in proxies:
1225                 proxies['https'] = proxies['http']
1226         proxy_handler = compat_urllib_request.ProxyHandler(proxies)
1227
1228         debuglevel = 1 if self.params.get('debug_printtraffic') else 0
1229         https_handler = make_HTTPS_handler(
1230             self.params.get('nocheckcertificate', False), debuglevel=debuglevel)
1231         ydlh = YoutubeDLHandler(debuglevel=debuglevel)
1232         opener = compat_urllib_request.build_opener(
1233             https_handler, proxy_handler, cookie_processor, ydlh)
1234         # Delete the default user-agent header, which would otherwise apply in
1235         # cases where our custom HTTP handler doesn't come into play
1236         # (See https://github.com/rg3/youtube-dl/issues/1309 for details)
1237         opener.addheaders = []
1238         self._opener = opener