mirror of
				https://gitlab.com/ytdl-org/youtube-dl.git
				synced 2025-11-03 19:47:07 -05:00 
			
		
		
		
	
		
			
				
	
	
		
			343 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			343 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
from __future__ import unicode_literals
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import json
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import re
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import socket
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from .common import InfoExtractor
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from ..compat import (
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    compat_etree_fromstring,
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    compat_http_client,
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    compat_urllib_error,
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    compat_urllib_parse_unquote,
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    compat_urllib_parse_unquote_plus,
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)
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from ..utils import (
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    error_to_compat_str,
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    ExtractorError,
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    limit_length,
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    sanitized_Request,
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    urlencode_postdata,
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    get_element_by_id,
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    clean_html,
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)
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class FacebookIE(InfoExtractor):
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    _VALID_URL = r'''(?x)
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                (?:
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                    https?://
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                        (?:[\w-]+\.)?facebook\.com/
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                        (?:[^#]*?\#!/)?
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                        (?:
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                            (?:
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                                video/video\.php|
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                                photo\.php|
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                                video\.php|
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                                video/embed|
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                                story\.php
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                            )\?(?:.*?)(?:v|video_id|story_fbid)=|
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                            [^/]+/videos/(?:[^/]+/)?|
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                            [^/]+/posts/|
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                            groups/[^/]+/permalink/
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                        )|
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                    facebook:
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                )
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                (?P<id>[0-9]+)
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                '''
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    _LOGIN_URL = 'https://www.facebook.com/login.php?next=http%3A%2F%2Ffacebook.com%2Fhome.php&login_attempt=1'
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    _CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
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    _NETRC_MACHINE = 'facebook'
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    IE_NAME = 'facebook'
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    _CHROME_USER_AGENT = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36'
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    _VIDEO_PAGE_TEMPLATE = 'https://www.facebook.com/video/video.php?v=%s'
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    _TESTS = [{
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        'url': 'https://www.facebook.com/video.php?v=637842556329505&fref=nf',
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        'md5': '6a40d33c0eccbb1af76cf0485a052659',
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        'info_dict': {
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            'id': '637842556329505',
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            'ext': 'mp4',
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            'title': 're:Did you know Kei Nishikori is the first Asian man to ever reach a Grand Slam',
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            'uploader': 'Tennis on Facebook',
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        }
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    }, {
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        'note': 'Video without discernible title',
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        'url': 'https://www.facebook.com/video.php?v=274175099429670',
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        'info_dict': {
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            'id': '274175099429670',
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            'ext': 'mp4',
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            'title': 'Facebook video #274175099429670',
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            'uploader': 'Asif Nawab Butt',
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        },
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        'expected_warnings': [
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            'title'
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        ]
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    }, {
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        'note': 'Video with DASH manifest',
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        'url': 'https://www.facebook.com/video.php?v=957955867617029',
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        'md5': '54706e4db4f5ad58fbad82dde1f1213f',
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        'info_dict': {
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            'id': '957955867617029',
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            'ext': 'mp4',
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            'title': 'When you post epic content on instagram.com/433 8 million followers, this is ...',
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            'uploader': 'Demy de Zeeuw',
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        },
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    }, {
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        'url': 'https://www.facebook.com/maxlayn/posts/10153807558977570',
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        'md5': '037b1fa7f3c2d02b7a0d7bc16031ecc6',
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        'info_dict': {
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            'id': '544765982287235',
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            'ext': 'mp4',
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            'title': '"What are you doing running in the snow?"',
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            'uploader': 'FailArmy',
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        }
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    }, {
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        'url': 'https://m.facebook.com/story.php?story_fbid=1035862816472149&id=116132035111903',
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        'md5': '1deb90b6ac27f7efcf6d747c8a27f5e3',
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        'info_dict': {
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            'id': '1035862816472149',
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            'ext': 'mp4',
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            'title': 'What the Flock Is Going On In New Zealand  Credit: ViralHog',
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            'uploader': 'S. Saint',
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        },
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    }, {
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        'note': 'swf params escaped',
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        'url': 'https://www.facebook.com/barackobama/posts/10153664894881749',
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        'md5': '97ba073838964d12c70566e0085c2b91',
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        'info_dict': {
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            'id': '10153664894881749',
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            'ext': 'mp4',
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            'title': 'Facebook video #10153664894881749',
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        },
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    }, {
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        'url': 'https://www.facebook.com/video.php?v=10204634152394104',
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        'only_matching': True,
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    }, {
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        'url': 'https://www.facebook.com/amogood/videos/1618742068337349/?fref=nf',
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        'only_matching': True,
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    }, {
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        'url': 'https://www.facebook.com/ChristyClarkForBC/videos/vb.22819070941/10153870694020942/?type=2&theater',
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        'only_matching': True,
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    }, {
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        'url': 'facebook:544765982287235',
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        'only_matching': True,
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    }, {
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        'url': 'https://www.facebook.com/groups/164828000315060/permalink/764967300301124/',
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        'only_matching': True,
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    }, {
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        'url': 'https://zh-hk.facebook.com/peoplespower/videos/1135894589806027/',
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        'only_matching': True,
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    }]
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    @staticmethod
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    def _extract_url(webpage):
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        mobj = re.search(
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            r'<iframe[^>]+?src=(["\'])(?P<url>https://www\.facebook\.com/video/embed.+?)\1', webpage)
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        if mobj is not None:
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            return mobj.group('url')
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        # Facebook API embed
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        # see https://developers.facebook.com/docs/plugins/embedded-video-player
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        mobj = re.search(r'''(?x)<div[^>]+
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                class=(?P<q1>[\'"])[^\'"]*\bfb-(?:video|post)\b[^\'"]*(?P=q1)[^>]+
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                data-href=(?P<q2>[\'"])(?P<url>(?:https?:)?//(?:www\.)?facebook.com/.+?)(?P=q2)''', webpage)
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        if mobj is not None:
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            return mobj.group('url')
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    def _login(self):
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        (useremail, password) = self._get_login_info()
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        if useremail is None:
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            return
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        login_page_req = sanitized_Request(self._LOGIN_URL)
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        self._set_cookie('facebook.com', 'locale', 'en_US')
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        login_page = self._download_webpage(login_page_req, None,
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                                            note='Downloading login page',
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                                            errnote='Unable to download login page')
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        lsd = self._search_regex(
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            r'<input type="hidden" name="lsd" value="([^"]*)"',
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            login_page, 'lsd')
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        lgnrnd = self._search_regex(r'name="lgnrnd" value="([^"]*?)"', login_page, 'lgnrnd')
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        login_form = {
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            'email': useremail,
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            'pass': password,
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            'lsd': lsd,
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            'lgnrnd': lgnrnd,
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            'next': 'http://facebook.com/home.php',
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            'default_persistent': '0',
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            'legacy_return': '1',
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            'timezone': '-60',
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            'trynum': '1',
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        }
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        request = sanitized_Request(self._LOGIN_URL, urlencode_postdata(login_form))
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        request.add_header('Content-Type', 'application/x-www-form-urlencoded')
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        try:
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            login_results = self._download_webpage(request, None,
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                                                   note='Logging in', errnote='unable to fetch login page')
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            if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
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                error = self._html_search_regex(
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                    r'(?s)<div[^>]+class=(["\']).*?login_error_box.*?\1[^>]*><div[^>]*>.*?</div><div[^>]*>(?P<error>.+?)</div>',
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                    login_results, 'login error', default=None, group='error')
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                if error:
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                    raise ExtractorError('Unable to login: %s' % error, expected=True)
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                self._downloader.report_warning('unable to log in: bad username/password, or exceeded login rate limit (~3/min). Check credentials or wait.')
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                return
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            fb_dtsg = self._search_regex(
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                r'name="fb_dtsg" value="(.+?)"', login_results, 'fb_dtsg', default=None)
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            h = self._search_regex(
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                r'name="h"\s+(?:\w+="[^"]+"\s+)*?value="([^"]+)"', login_results, 'h', default=None)
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            if not fb_dtsg or not h:
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                return
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            check_form = {
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                'fb_dtsg': fb_dtsg,
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                'h': h,
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                'name_action_selected': 'dont_save',
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            }
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            check_req = sanitized_Request(self._CHECKPOINT_URL, urlencode_postdata(check_form))
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            check_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
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            check_response = self._download_webpage(check_req, None,
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                                                    note='Confirming login')
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            if re.search(r'id="checkpointSubmitButton"', check_response) is not None:
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                self._downloader.report_warning('Unable to confirm login, you have to login in your browser and authorize the login.')
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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('unable to log in: %s' % error_to_compat_str(err))
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            return
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    def _real_initialize(self):
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        self._login()
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    def _extract_from_url(self, url, video_id, fatal_if_no_video=True):
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        req = sanitized_Request(url)
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        req.add_header('User-Agent', self._CHROME_USER_AGENT)
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        webpage = self._download_webpage(req, video_id)
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        video_data = None
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        BEFORE = '{swf.addParam(param[0], param[1]);});'
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        AFTER = '.forEach(function(variable) {swf.addVariable(variable[0], variable[1]);});'
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        PATTERN = re.escape(BEFORE) + '(?:\n|\\\\n)(.*?)' + re.escape(AFTER)
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        for m in re.findall(PATTERN, webpage):
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            swf_params = m.replace('\\\\', '\\').replace('\\"', '"')
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            data = dict(json.loads(swf_params))
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            params_raw = compat_urllib_parse_unquote(data['params'])
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            video_data_candidate = json.loads(params_raw)['video_data']
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            for _, f in video_data_candidate.items():
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                if not f:
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                    continue
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                if isinstance(f, dict):
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                    f = [f]
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                if not isinstance(f, list):
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                    continue
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                if f[0].get('video_id') == video_id:
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                    video_data = video_data_candidate
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                    break
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            if video_data:
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                break
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        def video_data_list2dict(video_data):
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            ret = {}
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            for item in video_data:
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                format_id = item['stream_type']
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                ret.setdefault(format_id, []).append(item)
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            return ret
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        if not video_data:
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            server_js_data = self._parse_json(self._search_regex(
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                r'handleServerJS\(({.+})\);', webpage, 'server js data', default='{}'), video_id)
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            for item in server_js_data.get('instances', []):
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                if item[1][0] == 'VideoConfig':
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                    video_data = video_data_list2dict(item[2][0]['videoData'])
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                    break
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        if not video_data:
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            if not fatal_if_no_video:
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                return webpage, False
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            m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
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            if m_msg is not None:
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                raise ExtractorError(
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                    'The video is not available, Facebook said: "%s"' % m_msg.group(1),
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                    expected=True)
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            else:
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                raise ExtractorError('Cannot parse data')
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        formats = []
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        for format_id, f in video_data.items():
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            if f and isinstance(f, dict):
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                f = [f]
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            if not f or not isinstance(f, list):
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                continue
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            for quality in ('sd', 'hd'):
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                for src_type in ('src', 'src_no_ratelimit'):
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                    src = f[0].get('%s_%s' % (quality, src_type))
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                    if src:
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                        preference = -10 if format_id == 'progressive' else 0
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                        if quality == 'hd':
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                            preference += 5
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                        formats.append({
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                            'format_id': '%s_%s_%s' % (format_id, quality, src_type),
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                            'url': src,
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                            'preference': preference,
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                        })
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            dash_manifest = f[0].get('dash_manifest')
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            if dash_manifest:
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                formats.extend(self._parse_mpd_formats(
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                    compat_etree_fromstring(compat_urllib_parse_unquote_plus(dash_manifest))))
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        if not formats:
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            raise ExtractorError('Cannot find video formats')
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        self._sort_formats(formats)
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        video_title = self._html_search_regex(
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            r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>([^<]*)</h2>', webpage, 'title',
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            default=None)
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        if not video_title:
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            video_title = self._html_search_regex(
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                r'(?s)<span class="fbPhotosPhotoCaption".*?id="fbPhotoPageCaption"><span class="hasCaption">(.*?)</span>',
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                webpage, 'alternative title', default=None)
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            video_title = limit_length(video_title, 80)
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        if not video_title:
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            video_title = 'Facebook video #%s' % video_id
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        uploader = clean_html(get_element_by_id('fbPhotoPageAuthorName', webpage))
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        info_dict = {
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            'id': video_id,
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            'title': video_title,
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            'formats': formats,
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            'uploader': uploader,
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        }
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        return webpage, info_dict
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    def _real_extract(self, url):
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        video_id = self._match_id(url)
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        real_url = self._VIDEO_PAGE_TEMPLATE % video_id if url.startswith('facebook:') else url
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        webpage, info_dict = self._extract_from_url(real_url, video_id, fatal_if_no_video=False)
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        if info_dict:
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            return info_dict
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        if '/posts/' in url:
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            entries = [
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                self.url_result('facebook:%s' % vid, FacebookIE.ie_key())
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                for vid in self._parse_json(
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                    self._search_regex(
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                        r'(["\'])video_ids\1\s*:\s*(?P<ids>\[.+?\])',
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                        webpage, 'video ids', group='ids'),
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                    video_id)]
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            return self.playlist_result(entries, video_id)
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        else:
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            _, info_dict = self._extract_from_url(
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                self._VIDEO_PAGE_TEMPLATE % video_id,
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                video_id, fatal_if_no_video=True)
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            return info_dict
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