Extraction: Replace youtube-dl with custom-built watch page extraction

1 files changed, 0 insertions, 204 deletions

diff --git a/youtube_dl/downloader/hls.py b/youtube_dl/downloader/hls.py
deleted file mode 100644
index fd30452..0000000
--- a/youtube_dl/downloader/hls.py
+++ /dev/null
@@ -1,204 +0,0 @@
-from __future__ import unicode_literals
-
-import re
-import binascii
-try:
-    from Crypto.Cipher import AES
-    can_decrypt_frag = True
-except ImportError:
-    can_decrypt_frag = False
-
-from .fragment import FragmentFD
-from .external import FFmpegFD
-
-from ..compat import (
-    compat_urllib_error,
-    compat_urlparse,
-    compat_struct_pack,
-)
-from ..utils import (
-    parse_m3u8_attributes,
-    update_url_query,
-)
-
-
-class HlsFD(FragmentFD):
-    """ A limited implementation that does not require ffmpeg """
-
-    FD_NAME = 'hlsnative'
-
-    @staticmethod
-    def can_download(manifest, info_dict):
-        UNSUPPORTED_FEATURES = (
-            r'#EXT-X-KEY:METHOD=(?!NONE|AES-128)',  # encrypted streams [1]
-            # r'#EXT-X-BYTERANGE',  # playlists composed of byte ranges of media files [2]
-
-            # Live streams heuristic does not always work (e.g. geo restricted to Germany
-            # http://hls-geo.daserste.de/i/videoportal/Film/c_620000/622873/format,716451,716457,716450,716458,716459,.mp4.csmil/index_4_av.m3u8?null=0)
-            # r'#EXT-X-MEDIA-SEQUENCE:(?!0$)',  # live streams [3]
-
-            # This heuristic also is not correct since segments may not be appended as well.
-            # Twitch vods of finished streams have EXT-X-PLAYLIST-TYPE:EVENT despite
-            # no segments will definitely be appended to the end of the playlist.
-            # r'#EXT-X-PLAYLIST-TYPE:EVENT',  # media segments may be appended to the end of
-            #                                 # event media playlists [4]
-
-            # 1. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.2.4
-            # 2. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.2.2
-            # 3. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.3.2
-            # 4. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.3.5
-        )
-        check_results = [not re.search(feature, manifest) for feature in UNSUPPORTED_FEATURES]
-        is_aes128_enc = '#EXT-X-KEY:METHOD=AES-128' in manifest
-        check_results.append(can_decrypt_frag or not is_aes128_enc)
-        check_results.append(not (is_aes128_enc and r'#EXT-X-BYTERANGE' in manifest))
-        check_results.append(not info_dict.get('is_live'))
-        return all(check_results)
-
-    def real_download(self, filename, info_dict):
-        man_url = info_dict['url']
-        self.to_screen('[%s] Downloading m3u8 manifest' % self.FD_NAME)
-
-        urlh = self.ydl.urlopen(self._prepare_url(info_dict, man_url))
-        man_url = urlh.geturl()
-        s = urlh.read().decode('utf-8', 'ignore')
-
-        if not self.can_download(s, info_dict):
-            if info_dict.get('extra_param_to_segment_url'):
-                self.report_error('pycrypto not found. Please install it.')
-                return False
-            self.report_warning(
-                'hlsnative has detected features it does not support, '
-                'extraction will be delegated to ffmpeg')
-            fd = FFmpegFD(self.ydl, self.params)
-            for ph in self._progress_hooks:
-                fd.add_progress_hook(ph)
-            return fd.real_download(filename, info_dict)
-
-        def is_ad_fragment(s):
-            return (s.startswith('#ANVATO-SEGMENT-INFO') and 'type=ad' in s or
-                    s.startswith('#UPLYNK-SEGMENT') and s.endswith(',ad'))
-
-        media_frags = 0
-        ad_frags = 0
-        ad_frag_next = False
-        for line in s.splitlines():
-            line = line.strip()
-            if not line:
-                continue
-            if line.startswith('#'):
-                if is_ad_fragment(line):
-                    ad_frags += 1
-                    ad_frag_next = True
-                continue
-            if ad_frag_next:
-                ad_frag_next = False
-                continue
-            media_frags += 1
-
-        ctx = {
-            'filename': filename,
-            'total_frags': media_frags,
-            'ad_frags': ad_frags,
-        }
-
-        self._prepare_and_start_frag_download(ctx)
-
-        fragment_retries = self.params.get('fragment_retries', 0)
-        skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True)
-        test = self.params.get('test', False)
-
-        extra_query = None
-        extra_param_to_segment_url = info_dict.get('extra_param_to_segment_url')
-        if extra_param_to_segment_url:
-            extra_query = compat_urlparse.parse_qs(extra_param_to_segment_url)
-        i = 0
-        media_sequence = 0
-        decrypt_info = {'METHOD': 'NONE'}
-        byte_range = {}
-        frag_index = 0
-        ad_frag_next = False
-        for line in s.splitlines():
-            line = line.strip()
-            if line:
-                if not line.startswith('#'):
-                    if ad_frag_next:
-                        ad_frag_next = False
-                        continue
-                    frag_index += 1
-                    if frag_index <= ctx['fragment_index']:
-                        continue
-                    frag_url = (
-                        line
-                        if re.match(r'^https?://', line)
-                        else compat_urlparse.urljoin(man_url, line))
-                    if extra_query:
-                        frag_url = update_url_query(frag_url, extra_query)
-                    count = 0
-                    headers = info_dict.get('http_headers', {})
-                    if byte_range:
-                        headers['Range'] = 'bytes=%d-%d' % (byte_range['start'], byte_range['end'])
-                    while count <= fragment_retries:
-                        try:
-                            success, frag_content = self._download_fragment(
-                                ctx, frag_url, info_dict, headers)
-                            if not success:
-                                return False
-                            break
-                        except compat_urllib_error.HTTPError as err:
-                            # Unavailable (possibly temporary) fragments may be served.
-                            # First we try to retry then either skip or abort.
-                            # See https://github.com/rg3/youtube-dl/issues/10165,
-                            # https://github.com/rg3/youtube-dl/issues/10448).
-                            count += 1
-                            if count <= fragment_retries:
-                                self.report_retry_fragment(err, frag_index, count, fragment_retries)
-                    if count > fragment_retries:
-                        if skip_unavailable_fragments:
-                            i += 1
-                            media_sequence += 1
-                            self.report_skip_fragment(frag_index)
-                            continue
-                        self.report_error(
-                            'giving up after %s fragment retries' % fragment_retries)
-                        return False
-                    if decrypt_info['METHOD'] == 'AES-128':
-                        iv = decrypt_info.get('IV') or compat_struct_pack('>8xq', media_sequence)
-                        decrypt_info['KEY'] = decrypt_info.get('KEY') or self.ydl.urlopen(
-                            self._prepare_url(info_dict, decrypt_info['URI'])).read()
-                        frag_content = AES.new(
-                            decrypt_info['KEY'], AES.MODE_CBC, iv).decrypt(frag_content)
-                    self._append_fragment(ctx, frag_content)
-                    # We only download the first fragment during the test
-                    if test:
-                        break
-                    i += 1
-                    media_sequence += 1
-                elif line.startswith('#EXT-X-KEY'):
-                    decrypt_url = decrypt_info.get('URI')
-                    decrypt_info = parse_m3u8_attributes(line[11:])
-                    if decrypt_info['METHOD'] == 'AES-128':
-                        if 'IV' in decrypt_info:
-                            decrypt_info['IV'] = binascii.unhexlify(decrypt_info['IV'][2:].zfill(32))
-                        if not re.match(r'^https?://', decrypt_info['URI']):
-                            decrypt_info['URI'] = compat_urlparse.urljoin(
-                                man_url, decrypt_info['URI'])
-                        if extra_query:
-                            decrypt_info['URI'] = update_url_query(decrypt_info['URI'], extra_query)
-                        if decrypt_url != decrypt_info['URI']:
-                            decrypt_info['KEY'] = None
-                elif line.startswith('#EXT-X-MEDIA-SEQUENCE'):
-                    media_sequence = int(line[22:])
-                elif line.startswith('#EXT-X-BYTERANGE'):
-                    splitted_byte_range = line[17:].split('@')
-                    sub_range_start = int(splitted_byte_range[1]) if len(splitted_byte_range) == 2 else byte_range['end']
-                    byte_range = {
-                        'start': sub_range_start,
-                        'end': sub_range_start + int(splitted_byte_range[0]),
-                    }
-                elif is_ad_fragment(line):
-                    ad_frag_next = True
-
-        self._finish_frag_download(ctx)
-
-        return True