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@ -24,6 +24,112 @@ from ..utils import (
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orderedSet,
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orderedSet,
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)
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)
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class YoutubeBaseInfoExtractor(InfoExtractor):
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"""Provide base functions for Youtube extractors"""
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_LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
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_LANG_URL = r'https://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
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_AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
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_NETRC_MACHINE = 'youtube'
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# If True it will raise an error if no login info is provided
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_LOGIN_REQUIRED = False
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def report_lang(self):
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"""Report attempt to set language."""
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self.to_screen(u'Setting language')
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def _set_language(self):
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request = compat_urllib_request.Request(self._LANG_URL)
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try:
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self.report_lang()
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compat_urllib_request.urlopen(request).read()
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
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self._downloader.report_warning(u'unable to set language: %s' % compat_str(err))
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return False
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return True
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def _login(self):
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(username, password) = self._get_login_info()
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# No authentication to be performed
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if username is None:
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if self._LOGIN_REQUIRED:
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raise ExtractorError(u'No login info available, needed for using %s.' % self.IE_NAME, expected=True)
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return False
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request = compat_urllib_request.Request(self._LOGIN_URL)
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try:
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login_page = compat_urllib_request.urlopen(request).read().decode('utf-8')
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
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self._downloader.report_warning(u'unable to fetch login page: %s' % compat_str(err))
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return False
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galx = None
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dsh = None
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match = re.search(re.compile(r'<input.+?name="GALX".+?value="(.+?)"', re.DOTALL), login_page)
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if match:
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galx = match.group(1)
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match = re.search(re.compile(r'<input.+?name="dsh".+?value="(.+?)"', re.DOTALL), login_page)
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if match:
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dsh = match.group(1)
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# Log in
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login_form_strs = {
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u'continue': u'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
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u'Email': username,
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u'GALX': galx,
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u'Passwd': password,
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u'PersistentCookie': u'yes',
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u'_utf8': u'霱',
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u'bgresponse': u'js_disabled',
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u'checkConnection': u'',
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u'checkedDomains': u'youtube',
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u'dnConn': u'',
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u'dsh': dsh,
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u'pstMsg': u'0',
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u'rmShown': u'1',
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u'secTok': u'',
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u'signIn': u'Sign in',
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u'timeStmp': u'',
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u'service': u'youtube',
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u'uilel': u'3',
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u'hl': u'en_US',
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}
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# Convert to UTF-8 *before* urlencode because Python 2.x's urlencode
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# chokes on unicode
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login_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k,v in login_form_strs.items())
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login_data = compat_urllib_parse.urlencode(login_form).encode('ascii')
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request = compat_urllib_request.Request(self._LOGIN_URL, login_data)
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try:
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self.report_login()
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login_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
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if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
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self._downloader.report_warning(u'unable to log in: bad username or password')
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return False
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
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self._downloader.report_warning(u'unable to log in: %s' % compat_str(err))
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return False
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return True
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def _confirm_age(self):
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age_form = {
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'next_url': '/',
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'action_confirm': 'Confirm',
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}
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request = compat_urllib_request.Request(self._AGE_URL, compat_urllib_parse.urlencode(age_form))
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try:
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self.report_age_confirmation()
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compat_urllib_request.urlopen(request).read().decode('utf-8')
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
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raise ExtractorError(u'Unable to confirm age: %s' % compat_str(err))
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return True
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def _real_initialize(self):
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if self._downloader is None:
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return
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if not self._set_language():
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return
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if not self._login():
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return
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self._confirm_age()
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class YoutubeSubtitlesIE(SubtitlesIE):
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class YoutubeSubtitlesIE(SubtitlesIE):
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@ -83,8 +189,7 @@ class YoutubeSubtitlesIE(SubtitlesIE):
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self._downloader.report_warning(err_msg)
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self._downloader.report_warning(err_msg)
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return {}
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return {}
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class YoutubeIE(YoutubeSubtitlesIE, YoutubeBaseInfoExtractor):
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class YoutubeIE(YoutubeSubtitlesIE):
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IE_DESC = u'YouTube.com'
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IE_DESC = u'YouTube.com'
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_VALID_URL = r"""^
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_VALID_URL = r"""^
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(
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(
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@ -95,7 +200,7 @@ class YoutubeIE(YoutubeSubtitlesIE):
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(?: # the various things that can precede the ID:
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(?: # the various things that can precede the ID:
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(?:(?:v|embed|e)/) # v/ or embed/ or e/
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(?:(?:v|embed|e)/) # v/ or embed/ or e/
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|(?: # or the v= param in all its forms
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|(?: # or the v= param in all its forms
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(?:watch|movie(?:_popup)?(?:\.php)?)? # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
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(?:(?:watch|movie)(?:_popup)?(?:\.php)?)? # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
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(?:\?|\#!?) # the params delimiter ? or # or #!
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(?:\?|\#!?) # the params delimiter ? or # or #!
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(?:.*?&)? # any other preceding param (like /?s=tuff&v=xxxx)
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(?:.*?&)? # any other preceding param (like /?s=tuff&v=xxxx)
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v=
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v=
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@ -375,6 +480,8 @@ class YoutubeIE(YoutubeSubtitlesIE):
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return s[1:19] + s[0] + s[20:68] + s[19] + s[69:82]
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return s[1:19] + s[0] + s[20:68] + s[19] + s[69:82]
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elif len(s) == 81:
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elif len(s) == 81:
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return s[56] + s[79:56:-1] + s[41] + s[55:41:-1] + s[80] + s[40:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
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return s[56] + s[79:56:-1] + s[41] + s[55:41:-1] + s[80] + s[40:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
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elif len(s) == 80:
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return s[1:19] + s[0] + s[20:68] + s[19] + s[69:80]
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elif len(s) == 79:
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elif len(s) == 79:
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return s[54] + s[77:54:-1] + s[39] + s[53:39:-1] + s[78] + s[38:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
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return s[54] + s[77:54:-1] + s[39] + s[53:39:-1] + s[78] + s[38:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
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@ -390,105 +497,6 @@ class YoutubeIE(YoutubeSubtitlesIE):
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# Fallback to the other algortihms
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# Fallback to the other algortihms
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return self._decrypt_signature(s)
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return self._decrypt_signature(s)
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def _get_available_subtitles(self, video_id):
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self.report_video_subtitles_download(video_id)
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request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
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try:
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sub_list = compat_urllib_request.urlopen(request).read().decode('utf-8')
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
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return (u'unable to download video subtitles: %s' % compat_str(err), None)
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sub_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
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sub_lang_list = dict((l[1], l[0]) for l in sub_lang_list)
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if not sub_lang_list:
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return (u'video doesn\'t have subtitles', None)
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return sub_lang_list
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def _list_available_subtitles(self, video_id):
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sub_lang_list = self._get_available_subtitles(video_id)
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self.report_video_subtitles_available(video_id, sub_lang_list)
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def _request_subtitle(self, sub_lang, sub_name, video_id, format):
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"""
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Return tuple:
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(error_message, sub_lang, sub)
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"""
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self.report_video_subtitles_request(video_id, sub_lang, format)
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params = compat_urllib_parse.urlencode({
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'lang': sub_lang,
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'name': sub_name,
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'v': video_id,
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'fmt': format,
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})
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url = 'http://www.youtube.com/api/timedtext?' + params
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try:
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sub = compat_urllib_request.urlopen(url).read().decode('utf-8')
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
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return (u'unable to download video subtitles: %s' % compat_str(err), None, None)
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if not sub:
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return (u'Did not fetch video subtitles', None, None)
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return (None, sub_lang, sub)
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def _request_automatic_caption(self, video_id, webpage):
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"""We need the webpage for getting the captions url, pass it as an
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argument to speed up the process."""
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sub_lang = self._downloader.params.get('subtitleslang') or 'en'
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sub_format = self._downloader.params.get('subtitlesformat')
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self.to_screen(u'%s: Looking for automatic captions' % video_id)
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mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
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err_msg = u'Couldn\'t find automatic captions for "%s"' % sub_lang
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if mobj is None:
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return [(err_msg, None, None)]
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player_config = json.loads(mobj.group(1))
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try:
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args = player_config[u'args']
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caption_url = args[u'ttsurl']
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timestamp = args[u'timestamp']
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params = compat_urllib_parse.urlencode({
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'lang': 'en',
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'tlang': sub_lang,
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'fmt': sub_format,
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'ts': timestamp,
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'kind': 'asr',
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})
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subtitles_url = caption_url + '&' + params
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sub = self._download_webpage(subtitles_url, video_id, u'Downloading automatic captions')
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return [(None, sub_lang, sub)]
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except KeyError:
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return [(err_msg, None, None)]
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def _extract_subtitle(self, video_id):
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"""
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Return a list with a tuple:
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[(error_message, sub_lang, sub)]
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"""
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sub_lang_list = self._get_available_subtitles(video_id)
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sub_format = self._downloader.params.get('subtitlesformat')
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if isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
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return [(sub_lang_list[0], None, None)]
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if self._downloader.params.get('subtitleslang', False):
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sub_lang = self._downloader.params.get('subtitleslang')
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elif 'en' in sub_lang_list:
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sub_lang = 'en'
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else:
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sub_lang = list(sub_lang_list.keys())[0]
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if not sub_lang in sub_lang_list:
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return [(u'no closed captions found in the specified language "%s"' % sub_lang, None, None)]
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subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
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return [subtitle]
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def _extract_all_subtitles(self, video_id):
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sub_lang_list = self._get_available_subtitles(video_id)
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sub_format = self._downloader.params.get('subtitlesformat')
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if isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
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return [(sub_lang_list[0], None, None)]
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subtitles = []
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for sub_lang in sub_lang_list:
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subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
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subtitles.append(subtitle)
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return subtitles
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def _print_formats(self, formats):
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def _print_formats(self, formats):
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print('Available formats:')
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print('Available formats:')
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for x in formats:
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for x in formats:
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Ismael Mejia
11 years ago