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mirror of https://github.com/l1ving/youtube-dl synced 2024-11-23 07:42:53 +08:00
youtube-dl/youtube_dl/extractor/crunchyroll.py
Philipp Hagemeister 8c25f81bee [util] Move compatibility functions out of util
utils is large enough without these compatibility functions.

Everything that is present in newer versions of Python (i.e. with dev Python it's just an import) goes into compat.py .
Everything else (i.e. youtube-dl-specific helpers) goes into utils.py .
2014-11-02 11:23:42 +01:00

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# encoding: utf-8
from __future__ import unicode_literals
import re
import json
import base64
import zlib
import xml.etree.ElementTree
from hashlib import sha1
from math import pow, sqrt, floor
from .subtitles import SubtitlesInfoExtractor
from ..utils import (
ExtractorError,
compat_urllib_parse,
compat_urllib_request,
bytes_to_intlist,
intlist_to_bytes,
unified_strdate,
urlencode_postdata,
)
from ..aes import (
aes_cbc_decrypt,
inc,
)
from .common import InfoExtractor
class CrunchyrollIE(SubtitlesInfoExtractor):
_VALID_URL = r'https?://(?:(?P<prefix>www|m)\.)?(?P<url>crunchyroll\.com/(?:[^/]*/[^/?&]*?|media/\?id=)(?P<video_id>[0-9]+))(?:[/?&]|$)'
_TEST = {
'url': 'http://www.crunchyroll.com/wanna-be-the-strongest-in-the-world/episode-1-an-idol-wrestler-is-born-645513',
#'md5': 'b1639fd6ddfaa43788c85f6d1dddd412',
'info_dict': {
'id': '645513',
'ext': 'flv',
'title': 'Wanna be the Strongest in the World Episode 1 An Idol-Wrestler is Born!',
'description': 'md5:2d17137920c64f2f49981a7797d275ef',
'thumbnail': 'http://img1.ak.crunchyroll.com/i/spire1-tmb/20c6b5e10f1a47b10516877d3c039cae1380951166_full.jpg',
'uploader': 'Yomiuri Telecasting Corporation (YTV)',
'upload_date': '20131013',
'url': 're:(?!.*&amp)',
},
'params': {
# rtmp
'skip_download': True,
},
}
_FORMAT_IDS = {
'360': ('60', '106'),
'480': ('61', '106'),
'720': ('62', '106'),
'1080': ('80', '108'),
}
def _login(self):
(username, password) = self._get_login_info()
if username is None:
return
self.report_login()
login_url = 'https://www.crunchyroll.com/?a=formhandler'
data = urlencode_postdata({
'formname': 'RpcApiUser_Login',
'name': username,
'password': password,
})
login_request = compat_urllib_request.Request(login_url, data)
login_request.add_header('Content-Type', 'application/x-www-form-urlencoded')
self._download_webpage(login_request, None, False, 'Wrong login info')
def _real_initialize(self):
self._login()
def _decrypt_subtitles(self, data, iv, id):
data = bytes_to_intlist(data)
iv = bytes_to_intlist(iv)
id = int(id)
def obfuscate_key_aux(count, modulo, start):
output = list(start)
for _ in range(count):
output.append(output[-1] + output[-2])
# cut off start values
output = output[2:]
output = list(map(lambda x: x % modulo + 33, output))
return output
def obfuscate_key(key):
num1 = int(floor(pow(2, 25) * sqrt(6.9)))
num2 = (num1 ^ key) << 5
num3 = key ^ num1
num4 = num3 ^ (num3 >> 3) ^ num2
prefix = intlist_to_bytes(obfuscate_key_aux(20, 97, (1, 2)))
shaHash = bytes_to_intlist(sha1(prefix + str(num4).encode('ascii')).digest())
# Extend 160 Bit hash to 256 Bit
return shaHash + [0] * 12
key = obfuscate_key(id)
class Counter:
__value = iv
def next_value(self):
temp = self.__value
self.__value = inc(self.__value)
return temp
decrypted_data = intlist_to_bytes(aes_cbc_decrypt(data, key, iv))
return zlib.decompress(decrypted_data)
def _convert_subtitles_to_srt(self, sub_root):
output = ''
for i, event in enumerate(sub_root.findall('./events/event'), 1):
start = event.attrib['start'].replace('.', ',')
end = event.attrib['end'].replace('.', ',')
text = event.attrib['text'].replace('\\N', '\n')
output += '%d\n%s --> %s\n%s\n\n' % (i, start, end, text)
return output
def _convert_subtitles_to_ass(self, sub_root):
output = ''
def ass_bool(strvalue):
assvalue = '0'
if strvalue == '1':
assvalue = '-1'
return assvalue
output = '[Script Info]\n'
output += 'Title: %s\n' % sub_root.attrib["title"]
output += 'ScriptType: v4.00+\n'
output += 'WrapStyle: %s\n' % sub_root.attrib["wrap_style"]
output += 'PlayResX: %s\n' % sub_root.attrib["play_res_x"]
output += 'PlayResY: %s\n' % sub_root.attrib["play_res_y"]
output += """ScaledBorderAndShadow: yes
[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
"""
for style in sub_root.findall('./styles/style'):
output += 'Style: ' + style.attrib["name"]
output += ',' + style.attrib["font_name"]
output += ',' + style.attrib["font_size"]
output += ',' + style.attrib["primary_colour"]
output += ',' + style.attrib["secondary_colour"]
output += ',' + style.attrib["outline_colour"]
output += ',' + style.attrib["back_colour"]
output += ',' + ass_bool(style.attrib["bold"])
output += ',' + ass_bool(style.attrib["italic"])
output += ',' + ass_bool(style.attrib["underline"])
output += ',' + ass_bool(style.attrib["strikeout"])
output += ',' + style.attrib["scale_x"]
output += ',' + style.attrib["scale_y"]
output += ',' + style.attrib["spacing"]
output += ',' + style.attrib["angle"]
output += ',' + style.attrib["border_style"]
output += ',' + style.attrib["outline"]
output += ',' + style.attrib["shadow"]
output += ',' + style.attrib["alignment"]
output += ',' + style.attrib["margin_l"]
output += ',' + style.attrib["margin_r"]
output += ',' + style.attrib["margin_v"]
output += ',' + style.attrib["encoding"]
output += '\n'
output += """
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
"""
for event in sub_root.findall('./events/event'):
output += 'Dialogue: 0'
output += ',' + event.attrib["start"]
output += ',' + event.attrib["end"]
output += ',' + event.attrib["style"]
output += ',' + event.attrib["name"]
output += ',' + event.attrib["margin_l"]
output += ',' + event.attrib["margin_r"]
output += ',' + event.attrib["margin_v"]
output += ',' + event.attrib["effect"]
output += ',' + event.attrib["text"]
output += '\n'
return output
def _real_extract(self,url):
mobj = re.match(self._VALID_URL, url)
video_id = mobj.group('video_id')
if mobj.group('prefix') == 'm':
mobile_webpage = self._download_webpage(url, video_id, 'Downloading mobile webpage')
webpage_url = self._search_regex(r'<link rel="canonical" href="([^"]+)" />', mobile_webpage, 'webpage_url')
else:
webpage_url = 'http://www.' + mobj.group('url')
webpage = self._download_webpage(webpage_url, video_id, 'Downloading webpage')
note_m = self._html_search_regex(r'<div class="showmedia-trailer-notice">(.+?)</div>', webpage, 'trailer-notice', default='')
if note_m:
raise ExtractorError(note_m)
mobj = re.search(r'Page\.messaging_box_controller\.addItems\(\[(?P<msg>{.+?})\]\)', webpage)
if mobj:
msg = json.loads(mobj.group('msg'))
if msg.get('type') == 'error':
raise ExtractorError('crunchyroll returned error: %s' % msg['message_body'], expected=True)
video_title = self._html_search_regex(r'<h1[^>]*>(.+?)</h1>', webpage, 'video_title', flags=re.DOTALL)
video_title = re.sub(r' {2,}', ' ', video_title)
video_description = self._html_search_regex(r'"description":"([^"]+)', webpage, 'video_description', default='')
if not video_description:
video_description = None
video_upload_date = self._html_search_regex(r'<div>Availability for free users:(.+?)</div>', webpage, 'video_upload_date', fatal=False, flags=re.DOTALL)
if video_upload_date:
video_upload_date = unified_strdate(video_upload_date)
video_uploader = self._html_search_regex(r'<div>\s*Publisher:(.+?)</div>', webpage, 'video_uploader', fatal=False, flags=re.DOTALL)
playerdata_url = compat_urllib_parse.unquote(self._html_search_regex(r'"config_url":"([^"]+)', webpage, 'playerdata_url'))
playerdata_req = compat_urllib_request.Request(playerdata_url)
playerdata_req.data = compat_urllib_parse.urlencode({'current_page': webpage_url})
playerdata_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
playerdata = self._download_webpage(playerdata_req, video_id, note='Downloading media info')
stream_id = self._search_regex(r'<media_id>([^<]+)', playerdata, 'stream_id')
video_thumbnail = self._search_regex(r'<episode_image_url>([^<]+)', playerdata, 'thumbnail', fatal=False)
formats = []
for fmt in re.findall(r'\?p([0-9]{3,4})=1', webpage):
stream_quality, stream_format = self._FORMAT_IDS[fmt]
video_format = fmt+'p'
streamdata_req = compat_urllib_request.Request('http://www.crunchyroll.com/xml/')
# urlencode doesn't work!
streamdata_req.data = 'req=RpcApiVideoEncode%5FGetStreamInfo&video%5Fencode%5Fquality='+stream_quality+'&media%5Fid='+stream_id+'&video%5Fformat='+stream_format
streamdata_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
streamdata_req.add_header('Content-Length', str(len(streamdata_req.data)))
streamdata = self._download_xml(
streamdata_req, video_id,
note='Downloading media info for %s' % video_format)
video_url = streamdata.find('.//host').text
video_play_path = streamdata.find('.//file').text
formats.append({
'url': video_url,
'play_path': video_play_path,
'ext': 'flv',
'format': video_format,
'format_id': video_format,
})
subtitles = {}
sub_format = self._downloader.params.get('subtitlesformat', 'srt')
for sub_id, sub_name in re.findall(r'\?ssid=([0-9]+)" title="([^"]+)', webpage):
sub_page = self._download_webpage('http://www.crunchyroll.com/xml/?req=RpcApiSubtitle_GetXml&subtitle_script_id='+sub_id,\
video_id, note='Downloading subtitles for '+sub_name)
id = self._search_regex(r'id=\'([0-9]+)', sub_page, 'subtitle_id', fatal=False)
iv = self._search_regex(r'<iv>([^<]+)', sub_page, 'subtitle_iv', fatal=False)
data = self._search_regex(r'<data>([^<]+)', sub_page, 'subtitle_data', fatal=False)
if not id or not iv or not data:
continue
id = int(id)
iv = base64.b64decode(iv)
data = base64.b64decode(data)
subtitle = self._decrypt_subtitles(data, iv, id).decode('utf-8')
lang_code = self._search_regex(r'lang_code=["\']([^"\']+)', subtitle, 'subtitle_lang_code', fatal=False)
if not lang_code:
continue
sub_root = xml.etree.ElementTree.fromstring(subtitle)
if not sub_root:
subtitles[lang_code] = ''
if sub_format == 'ass':
subtitles[lang_code] = self._convert_subtitles_to_ass(sub_root)
else:
subtitles[lang_code] = self._convert_subtitles_to_srt(sub_root)
if self._downloader.params.get('listsubtitles', False):
self._list_available_subtitles(video_id, subtitles)
return
return {
'id': video_id,
'title': video_title,
'description': video_description,
'thumbnail': video_thumbnail,
'uploader': video_uploader,
'upload_date': video_upload_date,
'subtitles': subtitles,
'formats': formats,
}
class CrunchyrollShowPlaylistIE(InfoExtractor):
IE_NAME = "crunchyroll:playlist"
_VALID_URL = r'https?://(?:(?P<prefix>www|m)\.)?(?P<url>crunchyroll\.com/(?!(?:news|anime-news|library|forum|launchcalendar|lineup|store|comics|freetrial|login))(?P<id>[\w\-]+))/?$'
_TESTS = [{
'url': 'http://www.crunchyroll.com/a-bridge-to-the-starry-skies-hoshizora-e-kakaru-hashi',
'info_dict': {
'id': 'a-bridge-to-the-starry-skies-hoshizora-e-kakaru-hashi',
'title': 'A Bridge to the Starry Skies - Hoshizora e Kakaru Hashi'
},
'playlist_count': 13,
}]
def _real_extract(self, url):
show_id = self._match_id(url)
webpage = self._download_webpage(url, show_id)
title = self._html_search_regex(
r'(?s)<h1[^>]*>\s*<span itemprop="name">(.*?)</span>',
webpage, 'title')
episode_paths = re.findall(
r'(?s)<li id="showview_videos_media_[0-9]+"[^>]+>.*?<a href="([^"]+)"',
webpage)
entries = [
self.url_result('http://www.crunchyroll.com' + ep, 'Crunchyroll')
for ep in episode_paths
]
entries.reverse()
return {
'_type': 'playlist',
'id': show_id,
'title': title,
'entries': entries,
}