aboutsummaryrefslogtreecommitdiff
path: root/youtube_dl/extractor/facebook.py
blob: 5e8589479d4ce5ae57240c4432494b8348b5523a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
from __future__ import unicode_literals

import json
import re
import socket

from .common import InfoExtractor
from ..compat import (
    compat_etree_fromstring,
    compat_http_client,
    compat_urllib_error,
    compat_urllib_parse_unquote,
    compat_urllib_parse_unquote_plus,
)
from ..utils import (
    error_to_compat_str,
    ExtractorError,
    limit_length,
    sanitized_Request,
    urlencode_postdata,
    get_element_by_id,
    clean_html,
)


class FacebookIE(InfoExtractor):
    _VALID_URL = r'''(?x)
                (?:
                    https?://
                        (?:\w+\.)?facebook\.com/
                        (?:[^#]*?\#!/)?
                        (?:
                            (?:
                                video/video\.php|
                                photo\.php|
                                video\.php|
                                video/embed|
                                story\.php
                            )\?(?:.*?)(?:v|video_id|story_fbid)=|
                            [^/]+/videos/(?:[^/]+/)?|
                            [^/]+/posts/
                        )|
                    facebook:
                )
                (?P<id>[0-9]+)
                '''
    _LOGIN_URL = 'https://www.facebook.com/login.php?next=http%3A%2F%2Ffacebook.com%2Fhome.php&login_attempt=1'
    _CHECKPOINT_URL = 'https://www.facebook.com/checkpoint/?next=http%3A%2F%2Ffacebook.com%2Fhome.php&_fb_noscript=1'
    _NETRC_MACHINE = 'facebook'
    IE_NAME = 'facebook'

    _CHROME_USER_AGENT = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36'

    _VIDEO_PAGE_TEMPLATE = 'https://www.facebook.com/video/video.php?v=%s'

    _TESTS = [{
        'url': 'https://www.facebook.com/video.php?v=637842556329505&fref=nf',
        'md5': '6a40d33c0eccbb1af76cf0485a052659',
        'info_dict': {
            'id': '637842556329505',
            'ext': 'mp4',
            'title': 're:Did you know Kei Nishikori is the first Asian man to ever reach a Grand Slam',
            'uploader': 'Tennis on Facebook',
        }
    }, {
        'note': 'Video without discernible title',
        'url': 'https://www.facebook.com/video.php?v=274175099429670',
        'info_dict': {
            'id': '274175099429670',
            'ext': 'mp4',
            'title': 'Facebook video #274175099429670',
            'uploader': 'Asif Nawab Butt',
        },
        'expected_warnings': [
            'title'
        ]
    }, {
        'note': 'Video with DASH manifest',
        'url': 'https://www.facebook.com/video.php?v=957955867617029',
        'md5': '54706e4db4f5ad58fbad82dde1f1213f',
        'info_dict': {
            'id': '957955867617029',
            'ext': 'mp4',
            'title': 'When you post epic content on instagram.com/433 8 million followers, this is ...',
            'uploader': 'Demy de Zeeuw',
        },
    }, {
        'url': 'https://www.facebook.com/maxlayn/posts/10153807558977570',
        'md5': '037b1fa7f3c2d02b7a0d7bc16031ecc6',
        'info_dict': {
            'id': '544765982287235',
            'ext': 'mp4',
            'title': '"What are you doing running in the snow?"',
            'uploader': 'FailArmy',
        }
    }, {
        'url': 'https://m.facebook.com/story.php?story_fbid=1035862816472149&id=116132035111903',
        'md5': '1deb90b6ac27f7efcf6d747c8a27f5e3',
        'info_dict': {
            'id': '1035862816472149',
            'ext': 'mp4',
            'title': 'What the Flock Is Going On In New Zealand  Credit: ViralHog',
            'uploader': 'S. Saint',
        },
    }, {
        'note': 'swf params escaped',
        'url': 'https://www.facebook.com/barackobama/posts/10153664894881749',
        'md5': '97ba073838964d12c70566e0085c2b91',
        'info_dict': {
            'id': '10153664894881749',
            'ext': 'mp4',
            'title': 'Facebook video #10153664894881749',
        },
    }, {
        'url': 'https://www.facebook.com/video.php?v=10204634152394104',
        'only_matching': True,
    }, {
        'url': 'https://www.facebook.com/amogood/videos/1618742068337349/?fref=nf',
        'only_matching': True,
    }, {
        'url': 'https://www.facebook.com/ChristyClarkForBC/videos/vb.22819070941/10153870694020942/?type=2&theater',
        'only_matching': True,
    }, {
        'url': 'facebook:544765982287235',
        'only_matching': True,
    }]

    def _login(self):
        (useremail, password) = self._get_login_info()
        if useremail is None:
            return

        login_page_req = sanitized_Request(self._LOGIN_URL)
        self._set_cookie('facebook.com', 'locale', 'en_US')
        login_page = self._download_webpage(login_page_req, None,
                                            note='Downloading login page',
                                            errnote='Unable to download login page')
        lsd = self._search_regex(
            r'<input type="hidden" name="lsd" value="([^"]*)"',
            login_page, 'lsd')
        lgnrnd = self._search_regex(r'name="lgnrnd" value="([^"]*?)"', login_page, 'lgnrnd')

        login_form = {
            'email': useremail,
            'pass': password,
            'lsd': lsd,
            'lgnrnd': lgnrnd,
            'next': 'http://facebook.com/home.php',
            'default_persistent': '0',
            'legacy_return': '1',
            'timezone': '-60',
            'trynum': '1',
        }
        request = sanitized_Request(self._LOGIN_URL, urlencode_postdata(login_form))
        request.add_header('Content-Type', 'application/x-www-form-urlencoded')
        try:
            login_results = self._download_webpage(request, None,
                                                   note='Logging in', errnote='unable to fetch login page')
            if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
                error = self._html_search_regex(
                    r'(?s)<div[^>]+class=(["\']).*?login_error_box.*?\1[^>]*><div[^>]*>.*?</div><div[^>]*>(?P<error>.+?)</div>',
                    login_results, 'login error', default=None, group='error')
                if error:
                    raise ExtractorError('Unable to login: %s' % error, expected=True)
                self._downloader.report_warning('unable to log in: bad username/password, or exceeded login rate limit (~3/min). Check credentials or wait.')
                return

            fb_dtsg = self._search_regex(
                r'name="fb_dtsg" value="(.+?)"', login_results, 'fb_dtsg', default=None)
            h = self._search_regex(
                r'name="h"\s+(?:\w+="[^"]+"\s+)*?value="([^"]+)"', login_results, 'h', default=None)

            if not fb_dtsg or not h:
                return

            check_form = {
                'fb_dtsg': fb_dtsg,
                'h': h,
                'name_action_selected': 'dont_save',
            }
            check_req = sanitized_Request(self._CHECKPOINT_URL, urlencode_postdata(check_form))
            check_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
            check_response = self._download_webpage(check_req, None,
                                                    note='Confirming login')
            if re.search(r'id="checkpointSubmitButton"', check_response) is not None:
                self._downloader.report_warning('Unable to confirm login, you have to login in your browser and authorize the login.')
        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
            self._downloader.report_warning('unable to log in: %s' % error_to_compat_str(err))
            return

    def _real_initialize(self):
        self._login()

    def _extract_from_url(self, url, video_id, fatal_if_no_video=True):
        req = sanitized_Request(url)
        req.add_header('User-Agent', self._CHROME_USER_AGENT)
        webpage = self._download_webpage(req, video_id)

        video_data = None

        BEFORE = '{swf.addParam(param[0], param[1]);});'
        AFTER = '.forEach(function(variable) {swf.addVariable(variable[0], variable[1]);});'
        m = re.search(re.escape(BEFORE) + '(?:\n|\\\\n)(.*?)' + re.escape(AFTER), webpage)
        if m:
            swf_params = m.group(1).replace('\\\\', '\\').replace('\\"', '"')
            data = dict(json.loads(swf_params))
            params_raw = compat_urllib_parse_unquote(data['params'])
            video_data = json.loads(params_raw)['video_data']

        def video_data_list2dict(video_data):
            ret = {}
            for item in video_data:
                format_id = item['stream_type']
                ret.setdefault(format_id, []).append(item)
            return ret

        if not video_data:
            server_js_data = self._parse_json(self._search_regex(
                r'handleServerJS\(({.+})\);', webpage, 'server js data', default='{}'), video_id)
            for item in server_js_data.get('instances', []):
                if item[1][0] == 'VideoConfig':
                    video_data = video_data_list2dict(item[2][0]['videoData'])
                    break

        if not video_data:
            if not fatal_if_no_video:
                return webpage, False
            m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
            if m_msg is not None:
                raise ExtractorError(
                    'The video is not available, Facebook said: "%s"' % m_msg.group(1),
                    expected=True)
            else:
                raise ExtractorError('Cannot parse data')

        formats = []
        for format_id, f in video_data.items():
            if not f or not isinstance(f, list):
                continue
            for quality in ('sd', 'hd'):
                for src_type in ('src', 'src_no_ratelimit'):
                    src = f[0].get('%s_%s' % (quality, src_type))
                    if src:
                        preference = -10 if format_id == 'progressive' else 0
                        if quality == 'hd':
                            preference += 5
                        formats.append({
                            'format_id': '%s_%s_%s' % (format_id, quality, src_type),
                            'url': src,
                            'preference': preference,
                        })
            dash_manifest = f[0].get('dash_manifest')
            if dash_manifest:
                formats.extend(self._parse_mpd_formats(
                    compat_etree_fromstring(compat_urllib_parse_unquote_plus(dash_manifest))))
        if not formats:
            raise ExtractorError('Cannot find video formats')

        self._sort_formats(formats)

        video_title = self._html_search_regex(
            r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>([^<]*)</h2>', webpage, 'title',
            default=None)
        if not video_title:
            video_title = self._html_search_regex(
                r'(?s)<span class="fbPhotosPhotoCaption".*?id="fbPhotoPageCaption"><span class="hasCaption">(.*?)</span>',
                webpage, 'alternative title', default=None)
            video_title = limit_length(video_title, 80)
        if not video_title:
            video_title = 'Facebook video #%s' % video_id
        uploader = clean_html(get_element_by_id('fbPhotoPageAuthorName', webpage))

        info_dict = {
            'id': video_id,
            'title': video_title,
            'formats': formats,
            'uploader': uploader,
        }

        return webpage, info_dict

    def _real_extract(self, url):
        video_id = self._match_id(url)

        real_url = self._VIDEO_PAGE_TEMPLATE % video_id if url.startswith('facebook:') else url
        webpage, info_dict = self._extract_from_url(real_url, video_id, fatal_if_no_video=False)

        if info_dict:
            return info_dict

        if '/posts/' in url:
            entries = [
                self.url_result('facebook:%s' % vid, FacebookIE.ie_key())
                for vid in self._parse_json(
                    self._search_regex(
                        r'(["\'])video_ids\1\s*:\s*(?P<ids>\[.+?\])',
                        webpage, 'video ids', group='ids'),
                    video_id)]

            return self.playlist_result(entries, video_id)
        else:
            _, info_dict = self._extract_from_url(
                self._VIDEO_PAGE_TEMPLATE % video_id,
                video_id, fatal_if_no_video=True)
            return info_dict