[ie/brilliantpala] Add extractors (#6680)

Authored by: pzhlkj6612

yt_dlp/extractor/_extractors.py

@@ -271,6 +271,10 @@
     BrightcoveLegacyIE,
     BrightcoveNewIE,
 )
+from .brilliantpala import (
+    BrilliantpalaElearnIE,
+    BrilliantpalaClassesIE,
+)
 from .businessinsider import BusinessInsiderIE
 from .bundesliga import BundesligaIE
 from .buzzfeed import BuzzFeedIE

yt_dlp/extractor/brilliantpala.py

@@ -0,0 +1,127 @@
+import hashlib
+
+from .common import InfoExtractor
+from ..utils import (
+    ExtractorError,
+    traverse_obj,
+    urlencode_postdata,
+)
+
+
+class BrilliantpalaBaseIE(InfoExtractor):
+    _NETRC_MACHINE = 'brilliantpala'
+    _DOMAIN = '{subdomain}.brilliantpala.org'
+
+    def _initialize_pre_login(self):
+        self._HOMEPAGE = f'https://{self._DOMAIN}'
+        self._LOGIN_API = f'{self._HOMEPAGE}/login/'
+        self._LOGOUT_DEVICES_API = f'{self._HOMEPAGE}/logout_devices/?next=/'
+        self._CONTENT_API = f'{self._HOMEPAGE}/api/v2.4/contents/{{content_id}}/'
+        self._HLS_AES_URI = f'{self._HOMEPAGE}/api/v2.5/video_contents/{{content_id}}/key/'
+
+    def _get_logged_in_username(self, url, video_id):
+        webpage, urlh = self._download_webpage_handle(url, video_id)
+        if self._LOGIN_API == urlh.url:
+            self.raise_login_required()
+        return self._html_search_regex(
+            r'"username"\s*:\s*"(?P<username>[^"]+)"', webpage, 'stream page info', 'username')
+
+    def _perform_login(self, username, password):
+        login_form = self._hidden_inputs(self._download_webpage(
+            self._LOGIN_API, None, 'Downloading login page'))
+        login_form.update({
+            'username': username,
+            'password': password,
+        })
+        self._set_cookie(self._DOMAIN, 'csrftoken', login_form['csrfmiddlewaretoken'])
+
+        logged_page = self._download_webpage(
+            self._LOGIN_API, None, note='Logging in', headers={'Referer': self._LOGIN_API},
+            data=urlencode_postdata(login_form))
+
+        if self._html_search_regex(
+                r'(Your username / email and password)', logged_page, 'auth fail', default=None):
+            raise ExtractorError('wrong username or password', expected=True)
+
+        # the maximum number of logins is one
+        if self._html_search_regex(
+                r'(Logout Other Devices)', logged_page, 'logout devices button', default=None):
+            logout_device_form = self._hidden_inputs(logged_page)
+            self._download_webpage(
+                self._LOGOUT_DEVICES_API, None, headers={'Referer': self._LOGIN_API},
+                note='Logging out other devices', data=urlencode_postdata(logout_device_form))
+
+    def _real_extract(self, url):
+        course_id, content_id = self._match_valid_url(url).group('course_id', 'content_id')
+        video_id = f'{course_id}-{content_id}'
+
+        username = self._get_logged_in_username(url, video_id)
+
+        content_json = self._download_json(
+            self._CONTENT_API.format(content_id=content_id), video_id,
+            note='Fetching content info', errnote='Unable to fetch content info')
+
+        entries = []
+        for stream in traverse_obj(content_json, ('video', 'streams', lambda _, v: v['id'] and v['url'])):
+            formats = self._extract_m3u8_formats(stream['url'], video_id, fatal=False)
+            if not formats:
+                continue
+            entries.append({
+                'id': str(stream['id']),
+                'title': content_json.get('title'),
+                'formats': formats,
+                'hls_aes': {'uri': self._HLS_AES_URI.format(content_id=content_id)},
+                'http_headers': {'X-Key': hashlib.sha256(username.encode('ascii')).hexdigest()},
+                'thumbnail': content_json.get('cover_image'),
+            })
+
+        return self.playlist_result(
+            entries, playlist_id=video_id, playlist_title=content_json.get('title'))
+
+
+class BrilliantpalaElearnIE(BrilliantpalaBaseIE):
+    IE_NAME = 'Brilliantpala:Elearn'
+    IE_DESC = 'VoD on elearn.brilliantpala.org'
+    _VALID_URL = r'https?://elearn\.brilliantpala\.org/courses/(?P<course_id>\d+)/contents/(?P<content_id>\d+)/?'
+    _TESTS = [{
+        'url': 'https://elearn.brilliantpala.org/courses/42/contents/12345/',
+        'only_matching': True,
+    }, {
+        'url': 'https://elearn.brilliantpala.org/courses/98/contents/36683/',
+        'info_dict': {
+            'id': '23577',
+            'ext': 'mp4',
+            'title': 'Physical World, Units and Measurements  - 1',
+            'thumbnail': 'https://d1j3vi2u94ebt0.cloudfront.net/institute/brilliantpalalms/chapter_contents/26237/e657f81b90874be19795c7ea081f8d5c.png',
+            'live_status': 'not_live',
+        },
+        'params': {
+            'skip_download': True,
+        },
+    }]
+
+    _DOMAIN = BrilliantpalaBaseIE._DOMAIN.format(subdomain='elearn')
+
+
+class BrilliantpalaClassesIE(BrilliantpalaBaseIE):
+    IE_NAME = 'Brilliantpala:Classes'
+    IE_DESC = 'VoD on classes.brilliantpala.org'
+    _VALID_URL = r'https?://classes\.brilliantpala\.org/courses/(?P<course_id>\d+)/contents/(?P<content_id>\d+)/?'
+    _TESTS = [{
+        'url': 'https://classes.brilliantpala.org/courses/42/contents/12345/',
+        'only_matching': True,
+    }, {
+        'url': 'https://classes.brilliantpala.org/courses/416/contents/25445/',
+        'info_dict': {
+            'id': '9128',
+            'ext': 'mp4',
+            'title': 'Motion in a Straight Line - Class 1',
+            'thumbnail': 'https://d3e4y8hquds3ek.cloudfront.net/institute/brilliantpalaelearn/chapter_contents/ff5ba838d0ec43419f67387fe1a01fa8.png',
+            'live_status': 'not_live',
+        },
+        'params': {
+            'skip_download': True,
+        },
+    }]
+
+    _DOMAIN = BrilliantpalaBaseIE._DOMAIN.format(subdomain='classes')