--- /dev/null
+# 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,
+ }