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Facebook info extractor
This IE should be full-featured. Public videos can be downloaded without login, e.g: https://www.facebook.com/video/video.php?v=696729990595 Private videos need login, and subject to login rate limit of a couple of tries / minute.
This commit is contained in:
Gergely Imreh
parent
7cc3c6fd62
commit
9f5f960213
225
youtube-dl
225
youtube-dl
@ -2339,6 +2339,229 @@ class DepositFilesIE(InfoExtractor):
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except UnavailableVideoError, err:
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self._downloader.trouble(u'ERROR: unable to download file')
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class FacebookIE(InfoExtractor):
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"""Information Extractor for Facebook"""
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_VALID_URL = r'^(?:https?://)?(?:\w+\.)?facebook.com/video/video.php\?(?:.*?)v=(?P<ID>\d+)(?:.*)'
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_LOGIN_URL = 'https://login.facebook.com/login.php?m&next=http%3A%2F%2Fm.facebook.com%2Fhome.php&'
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_NETRC_MACHINE = 'facebook'
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_available_formats = ['highqual', 'lowqual']
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_video_extensions = {
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'highqual': 'mp4',
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'lowqual': 'mp4',
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}
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def __init__(self, downloader=None):
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InfoExtractor.__init__(self, downloader)
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@staticmethod
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def suitable(url):
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return (re.match(FacebookIE._VALID_URL, url) is not None)
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def _reporter(self, message):
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"""Add header and report message."""
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self._downloader.to_screen(u'[facebook] %s' % message)
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def report_login(self):
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"""Report attempt to log in."""
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self._reporter(u'Logging in')
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def report_video_webpage_download(self, video_id):
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"""Report attempt to download video webpage."""
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self._reporter(u'%s: Downloading video webpage' % video_id)
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def report_information_extraction(self, video_id):
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"""Report attempt to extract video information."""
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self._reporter(u'%s: Extracting video information' % video_id)
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def _parse_page(self, video_webpage):
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"""Extract video information from page"""
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# General data
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data = {'title': r'class="video_title datawrap">(.*?)</',
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'description': r'<div class="datawrap">(.*?)</div>',
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'owner': r'\("video_owner_name", "(.*?)"\)',
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'upload_date': r'data-date="(.*?)"',
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'thumbnail': r'\("thumb_url", "(?P<THUMB>.*?)"\)',
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}
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video_info = {}
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for piece in data.keys():
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mobj = re.search(data[piece], video_webpage)
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if mobj is not None:
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video_info[piece] = urllib.unquote_plus(mobj.group(1).decode("unicode_escape"))
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# Video urls
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video_urls = {}
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for fmt in self._available_formats:
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mobj = re.search(r'\("%s_src\", "(.+?)"\)' % fmt, video_webpage)
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if mobj is not None:
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# URL is in a Javascript segment inside an escaped Unicode format within
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# the generally utf-8 page
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video_urls[fmt] = urllib.unquote_plus(mobj.group(1).decode("unicode_escape"))
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video_info['video_urls'] = video_urls
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return video_info
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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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useremail = None
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password = None
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downloader_params = self._downloader.params
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# Attempt to use provided username and password or .netrc data
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if downloader_params.get('username', None) is not None:
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useremail = downloader_params['username']
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password = downloader_params['password']
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elif downloader_params.get('usenetrc', False):
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try:
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info = netrc.netrc().authenticators(self._NETRC_MACHINE)
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if info is not None:
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useremail = info[0]
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password = info[2]
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else:
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raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
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except (IOError, netrc.NetrcParseError), err:
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self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % str(err))
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return
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if useremail is None:
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return
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# Log in
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login_form = {
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'email': useremail,
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'pass': password,
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'login': 'Log+In'
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}
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request = urllib2.Request(self._LOGIN_URL, urllib.urlencode(login_form))
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try:
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self.report_login()
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login_results = urllib2.urlopen(request).read()
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if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
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self._downloader.to_stderr(u'WARNING: unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
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return
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except (urllib2.URLError, httplib.HTTPException, socket.error), err:
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self._downloader.to_stderr(u'WARNING: unable to log in: %s' % str(err))
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return
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def _real_extract(self, url):
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mobj = re.match(self._VALID_URL, url)
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if mobj is None:
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self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
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return
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video_id = mobj.group('ID')
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# Get video webpage
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self.report_video_webpage_download(video_id)
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request = urllib2.Request('https://www.facebook.com/video/video.php?v=%s' % video_id)
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try:
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page = urllib2.urlopen(request)
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video_webpage = page.read()
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except (urllib2.URLError, httplib.HTTPException, socket.error), err:
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self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
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return
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# Start extracting information
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self.report_information_extraction(video_id)
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# Extract information
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video_info = self._parse_page(video_webpage)
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# uploader
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if 'owner' not in video_info:
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self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
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return
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video_uploader = video_info['owner']
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# title
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if 'title' not in video_info:
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self._downloader.trouble(u'ERROR: unable to extract video title')
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return
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video_title = video_info['title']
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video_title = video_title.decode('utf-8')
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video_title = sanitize_title(video_title)
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# simplified title
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simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
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simple_title = simple_title.strip(ur'_')
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# thumbnail image
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if 'thumbnail' not in video_info:
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self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
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video_thumbnail = ''
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else:
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video_thumbnail = video_info['thumbnail']
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# upload date
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upload_date = u'NA'
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if 'upload_date' in video_info:
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upload_time = video_info['upload_date']
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timetuple = email.utils.parsedate_tz(upload_time)
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if timetuple is not None:
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try:
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upload_date = time.strftime('%Y%m%d', timetuple[0:9])
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except:
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pass
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# description
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video_description = 'No description available.'
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if (self._downloader.params.get('forcedescription', False) and
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'description' in video_info):
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video_description = video_info['description']
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url_map = video_info['video_urls']
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if len(url_map.keys()) > 0:
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# Decide which formats to download
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req_format = self._downloader.params.get('format', None)
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format_limit = self._downloader.params.get('format_limit', None)
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if format_limit is not None and format_limit in self._available_formats:
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format_list = self._available_formats[self._available_formats.index(format_limit):]
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else:
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format_list = self._available_formats
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existing_formats = [x for x in format_list if x in url_map]
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if len(existing_formats) == 0:
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self._downloader.trouble(u'ERROR: no known formats available for video')
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return
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if req_format is None:
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video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
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elif req_format == '-1':
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video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
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else:
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# Specific format
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if req_format not in url_map:
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self._downloader.trouble(u'ERROR: requested format not available')
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return
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video_url_list = [(req_format, url_map[req_format])] # Specific format
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for format_param, video_real_url in video_url_list:
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# At this point we have a new video
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self._downloader.increment_downloads()
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# Extension
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video_extension = self._video_extensions.get(format_param, 'mp4')
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# Find the video URL in fmt_url_map or conn paramters
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try:
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# Process video information
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self._downloader.process_info({
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'id': video_id.decode('utf-8'),
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'url': video_real_url.decode('utf-8'),
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'uploader': video_uploader.decode('utf-8'),
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'upload_date': upload_date,
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'title': video_title,
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'stitle': simple_title,
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'ext': video_extension.decode('utf-8'),
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'format': (format_param is None and u'NA' or format_param.decode('utf-8')),
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'thumbnail': video_thumbnail.decode('utf-8'),
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'description': video_description.decode('utf-8'),
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'player_url': None,
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})
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except UnavailableVideoError, err:
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self._downloader.trouble(u'\nERROR: unable to download video')
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class PostProcessor(object):
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"""Post Processor class.
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@ -2594,6 +2817,7 @@ if __name__ == '__main__':
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yahoo_ie = YahooIE()
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yahoo_search_ie = YahooSearchIE(yahoo_ie)
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deposit_files_ie = DepositFilesIE()
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facebook_ie = FacebookIE()
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generic_ie = GenericIE()
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# File downloader
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@ -2645,6 +2869,7 @@ if __name__ == '__main__':
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fd.add_info_extractor(yahoo_ie)
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fd.add_info_extractor(yahoo_search_ie)
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fd.add_info_extractor(deposit_files_ie)
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fd.add_info_extractor(facebook_ie)
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# This must come last since it's the
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# fallback if none of the others work
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