[StreamsbIE] Add extractor for streamsb.com (viewsb.com) (#31517)

* Add extractor for streamsb.com (viewsb.com)

* make data url using app.js version

---------

Co-authored-by: dirkf <fieldhouse@gmx.net>

2 files changed, 62 insertions, 0 deletions

diff --git a/youtube_dl/extractor/extractors.py b/youtube_dl/extractor/extractors.py
index d8428f46f..3a87f9e33 100644
--- a/youtube_dl/extractor/extractors.py
+++ b/youtube_dl/extractor/extractors.py
@@ -1206,6 +1206,7 @@ from .storyfire import (
 from .streamable import StreamableIE
 from .streamcloud import StreamcloudIE
 from .streamcz import StreamCZIE
+from .streamsb import StreamsbIE
 from .streetvoice import StreetVoiceIE
 from .stretchinternet import StretchInternetIE
 from .stv import STVPlayerIE
diff --git a/youtube_dl/extractor/streamsb.py b/youtube_dl/extractor/streamsb.py
new file mode 100644
index 000000000..bffcb3de1
--- /dev/null
+++ b/youtube_dl/extractor/streamsb.py
@@ -0,0 +1,61 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+import binascii
+import random
+import re
+import string
+
+from .common import InfoExtractor
+from ..utils import urljoin, url_basename
+
+
+def to_ascii_hex(str1):
+    return binascii.hexlify(str1.encode('utf-8')).decode('ascii')
+
+
+def generate_random_string(length):
+    return ''.join(random.choice(string.ascii_letters + string.digits) for _ in range(length))
+
+
+class StreamsbIE(InfoExtractor):
+    _DOMAINS = ('viewsb.com', )
+    _VALID_URL = r'https://(?P<domain>%s)/(?P<id>.+)' % '|'.join(_DOMAINS)
+    _TEST = {
+        'url': 'https://viewsb.com/dxfvlu4qanjx',
+        'md5': '488d111a63415369bf90ea83adc8a325',
+        'info_dict': {
+            'id': 'dxfvlu4qanjx',
+            'ext': 'mp4',
+            'title': 'Sintel'
+        }
+    }
+
+    def _real_extract(self, url):
+        domain, video_id = re.match(self._VALID_URL, url).group('domain', 'id')
+        webpage = self._download_webpage(url, video_id)
+
+        iframe_rel_url = self._search_regex(r'''(?i)<iframe\b[^>]+\bsrc\s*=\s*('|")(?P<path>/.*\.html)\1''', webpage, 'iframe', group='path')
+        iframe_url = urljoin('https://' + domain, iframe_rel_url)
+
+        iframe_data = self._download_webpage(iframe_url, video_id)
+        app_version = self._search_regex(r'''<script\b[^>]+\bsrc\s*=\s*["|'].*/app\.min\.(\d+)\.js''', iframe_data, 'app version', fatal=False) or '50'
+
+        video_code = url_basename(iframe_url).rsplit('.')[0]
+
+        length = 12
+        req = '||'.join((generate_random_string(length), video_code, generate_random_string(length), 'streamsb'))
+        ereq = 'https://{0}/sources{1}/{2}'.format(domain, app_version, to_ascii_hex(req))
+
+        video_data = self._download_webpage(ereq, video_id, headers={
+            'Referer': iframe_url,
+            'watchsb': 'sbstream',
+        })
+        player_data = self._parse_json(video_data, video_id)
+        title = player_data['stream_data']['title']
+        formats = self._extract_m3u8_formats(player_data['stream_data']['file'], video_id, ext='mp4', entry_protocol='m3u8_native', m3u8_id='hls', fatal=False)
+        return {
+            'id': video_id,
+            'formats': formats,
+            'title': title,
+        }