472 lines
17 KiB
Python
472 lines
17 KiB
Python
# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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from __future__ import absolute_import
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import binascii
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import copy
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import os
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import random
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import re
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import time
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from datetime import datetime
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from datetime import timedelta
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from cryptography.hazmat.backends import default_backend
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from cryptography.hazmat.primitives.ciphers import algorithms
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from cryptography.hazmat.primitives.ciphers import Cipher
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from cryptography.hazmat.primitives.ciphers import modes
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from svtplay_dl.error import ServiceError
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from svtplay_dl.error import UIException
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from svtplay_dl.fetcher import VideoRetriever
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from svtplay_dl.subtitle import subtitle
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from svtplay_dl.utils.http import get_full_url
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from svtplay_dl.utils.output import ETA
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from svtplay_dl.utils.output import output
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from svtplay_dl.utils.output import progress_stream
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from svtplay_dl.utils.output import progressbar
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class HLSException(UIException):
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def __init__(self, url, message):
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self.url = url
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super().__init__(message)
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class LiveHLSException(HLSException):
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def __init__(self, url):
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super().__init__(url, "This is a live HLS stream, and they are not supported.")
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def hlsparse(config, res, url, **kwargs):
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streams = {}
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if not res:
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return streams
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if res.status_code > 400:
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streams[0] = ServiceError("Can't read HLS playlist. {}".format(res.status_code))
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return streams
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m3u8 = M3U8(res.text)
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keycookie = kwargs.pop("keycookie", None)
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authorization = kwargs.pop("authorization", None)
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httpobject = kwargs.pop("httpobject", None)
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output = kwargs.pop("output", None)
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media = {}
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subtitles = {}
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segments = None
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if m3u8.master_playlist:
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for i in m3u8.master_playlist:
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audio_url = None
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if i["TAG"] == "EXT-X-MEDIA":
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if "AUTOSELECT" in i and (i["AUTOSELECT"].upper() == "YES"):
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if i["TYPE"] and i["TYPE"] != "SUBTITLES":
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if "URI" in i:
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if segments is None:
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segments = True
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if i["GROUP-ID"] not in media:
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media[i["GROUP-ID"]] = []
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media[i["GROUP-ID"]].append(i["URI"])
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else:
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segments = False
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if i["TYPE"] == "SUBTITLES":
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if "URI" in i:
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if i["GROUP-ID"] not in subtitles:
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subtitles[i["GROUP-ID"]] = []
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item = [i["URI"], i["LANGUAGE"]]
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if item not in subtitles[i["GROUP-ID"]]:
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subtitles[i["GROUP-ID"]].append(item)
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continue
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elif i["TAG"] == "EXT-X-STREAM-INF":
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bit_rate = float(i["BANDWIDTH"]) / 1000
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if "AUDIO" in i and (i["AUDIO"] in media):
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audio_url = get_full_url(media[i["AUDIO"]][0], url)
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urls = get_full_url(i["URI"], url)
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else:
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continue # Needs to be changed to utilise other tags.
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streams[int(bit_rate)] = HLS(
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copy.copy(config),
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urls,
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bit_rate,
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cookies=res.cookies,
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keycookie=keycookie,
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authorization=authorization,
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audio=audio_url,
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output=output,
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segments=bool(segments),
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kwargs=kwargs,
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)
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if subtitles and httpobject:
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for sub in list(subtitles.keys()):
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for n in subtitles[sub]:
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m3u8s = M3U8(httpobject.request("get", get_full_url(n[0], url), cookies=res.cookies).text)
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if "cmore" in url:
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subtype = "wrstsegment" # this have been seen in tv4play
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else:
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subtype = "wrst"
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streams[int(random.randint(1, 40))] = subtitle(
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copy.copy(config),
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subtype,
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get_full_url(m3u8s.media_segment[0]["URI"], url),
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subfix=n[1],
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output=copy.copy(output),
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m3u8=m3u8s,
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)
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elif m3u8.media_segment:
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config.set("segments", False)
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streams[0] = HLS(
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copy.copy(config), url, 0, cookies=res.cookies, keycookie=keycookie, authorization=authorization, output=output, segments=False
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)
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else:
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streams[0] = ServiceError("Can't find HLS playlist in m3u8 file.")
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return streams
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class HLS(VideoRetriever):
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@property
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def name(self):
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return "hls"
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def download(self):
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self.output_extention = "ts"
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if self.segments:
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if self.audio:
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self._download(self.audio, file_name=(copy.copy(self.output), "audio.ts"))
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self._download(self.url, file_name=(self.output, "ts"))
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else:
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# Ignore audio
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self.audio = None
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self._download(self.url, file_name=(self.output, "ts"))
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def _download(self, url, file_name):
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cookies = self.kwargs.get("cookies", None)
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start_time = time.time()
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m3u8 = M3U8(self.http.request("get", url, cookies=cookies).text)
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key = None
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def random_iv():
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return os.urandom(16)
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file_d = output(file_name[0], self.config, file_name[1])
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if file_d is None:
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return
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hls_time_stamp = self.kwargs.pop("hls_time_stamp", False)
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decryptor = None
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size_media = len(m3u8.media_segment)
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eta = ETA(size_media)
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total_duration = 0
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duration = 0
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max_duration = 0
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for index, i in enumerate(m3u8.media_segment):
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if "duration" in i["EXTINF"]:
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duration = i["EXTINF"]["duration"]
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max_duration = max(max_duration, duration)
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total_duration += duration
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item = get_full_url(i["URI"], url)
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if not self.config.get("silent"):
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if self.config.get("live"):
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progressbar(size_media, index + 1, "".join(["DU: ", str(timedelta(seconds=int(total_duration)))]))
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else:
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eta.increment()
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progressbar(size_media, index + 1, "".join(["ETA: ", str(eta)]))
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data = self.http.request("get", item, cookies=cookies)
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if data.status_code == 404:
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break
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data = data.content
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if m3u8.encrypted:
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headers = {}
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if self.keycookie:
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keycookies = self.keycookie
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else:
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keycookies = cookies
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if self.authorization:
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headers["authorization"] = self.authorization
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# Update key/decryptor
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if "EXT-X-KEY" in i:
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keyurl = get_full_url(i["EXT-X-KEY"]["URI"], url)
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if keyurl and keyurl[:4] == "skd:":
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raise HLSException(keyurl, "Can't decrypt beacuse of DRM")
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key = self.http.request("get", keyurl, cookies=keycookies, headers=headers).content
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iv = binascii.unhexlify(i["EXT-X-KEY"]["IV"][2:].zfill(32)) if "IV" in i["EXT-X-KEY"] else random_iv()
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backend = default_backend()
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cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=backend)
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decryptor = cipher.decryptor()
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if decryptor:
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data = decryptor.update(data)
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else:
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raise ValueError("No decryptor found for encrypted hls steam.")
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file_d.write(data)
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if self.config.get("capture_time") > 0 and total_duration >= self.config.get("capture_time") * 60:
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break
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if (size_media == (index + 1)) and self.config.get("live"):
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sleep_int = (start_time + max_duration * 2) - time.time()
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if sleep_int > 0:
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time.sleep(sleep_int)
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size_media_old = size_media
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while size_media_old == size_media:
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start_time = time.time()
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if hls_time_stamp:
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end_time_stamp = (datetime.utcnow() - timedelta(minutes=1, seconds=max_duration * 2)).replace(microsecond=0)
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start_time_stamp = end_time_stamp - timedelta(minutes=1)
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base_url = url.split(".m3u8")[0]
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url = "{}.m3u8?in={}&out={}?".format(base_url, start_time_stamp.isoformat(), end_time_stamp.isoformat())
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new_m3u8 = M3U8(self.http.request("get", url, cookies=cookies).text)
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for n_m3u in new_m3u8.media_segment:
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if not any(d["URI"] == n_m3u["URI"] for d in m3u8.media_segment):
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m3u8.media_segment.append(n_m3u)
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size_media = len(m3u8.media_segment)
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if size_media_old == size_media:
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time.sleep(max_duration)
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file_d.close()
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if not self.config.get("silent"):
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progress_stream.write("\n")
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self.finished = True
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class M3U8:
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# Created for hls version <=7
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# https://tools.ietf.org/html/rfc8216
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MEDIA_SEGMENT_TAGS = ("EXTINF", "EXT-X-BYTERANGE", "EXT-X-DISCONTINUITY", "EXT-X-KEY", "EXT-X-MAP", "EXT-X-PROGRAM-DATE-TIME", "EXT-X-DATERANGE")
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MEDIA_PLAYLIST_TAGS = (
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"EXT-X-TARGETDURATION",
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"EXT-X-MEDIA-SEQUENCE",
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"EXT-X-DISCONTINUITY-SEQUENCE",
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"EXT-X-ENDLIST",
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"EXT-X-PLAYLIST-TYPE",
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"EXT-X-I-FRAMES-ONLY",
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)
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MASTER_PLAYLIST_TAGS = ("EXT-X-MEDIA", "EXT-X-STREAM-INF", "EXT-X-I-FRAME-STREAM-INF", "EXT-X-SESSION-DATA", "EXT-X-SESSION-KEY")
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MEDIA_OR_MASTER_PLAYLIST_TAGS = ("EXT-X-INDEPENDENT-SEGMENTS", "EXT-X-START")
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TAG_TYPES = {"MEDIA_SEGMENT": 0, "MEDIA_PLAYLIST": 1, "MASTER_PLAYLIST": 2}
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def __init__(self, data):
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self.version = None
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self.media_segment = []
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self.media_playlist = {}
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self.master_playlist = []
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self.encrypted = False
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self.independent_segments = False
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self.parse_m3u(data)
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def __str__(self):
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return "Version: {}\nMedia Segment: {}\nMedia Playlist: {}\nMaster Playlist: {}\nEncrypted: {}\tIndependent_segments: {}".format(
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self.version, self.media_segment, self.media_playlist, self.master_playlist, self.encrypted, self.independent_segments
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)
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def parse_m3u(self, data):
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if not data.startswith("#EXTM3U"):
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raise ValueError("Does not appear to be an 'EXTM3U' file.")
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data = data.replace("\r\n", "\n")
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lines = data.split("\n")[1:]
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last_tag_type = None
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tag_type = None
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media_segment_info = {}
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for index, l in enumerate(lines):
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if not l:
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continue
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elif l.startswith("#EXT"):
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info = {}
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tag, attr = _get_tag_attribute(l)
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if tag == "EXT-X-VERSION":
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self.version = int(attr)
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# 4.3.2. Media Segment Tags
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elif tag in M3U8.MEDIA_SEGMENT_TAGS:
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tag_type = M3U8.TAG_TYPES["MEDIA_SEGMENT"]
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# 4.3.2.1. EXTINF
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if tag == "EXTINF":
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if "," in attr:
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dur, title = attr.split(",", 1)
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else:
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dur = attr
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title = None
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info["duration"] = float(dur)
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info["title"] = title
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# 4.3.2.2. EXT-X-BYTERANGE
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elif tag == "EXT-X-BYTERANGE":
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if "@" in attr:
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n, o = attr.split("@", 1)
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info["n"], info["o"] = (int(n), int(o))
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else:
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info["n"] = int(attr)
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info["o"] = 0
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# 4.3.2.3. EXT-X-DISCONTINUITY
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elif tag == "EXT-X-DISCONTINUITY":
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pass
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# 4.3.2.4. EXT-X-KEY
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elif tag == "EXT-X-KEY":
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self.encrypted = True
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info = _get_tuple_attribute(attr)
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# 4.3.2.5. EXT-X-MAP
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elif tag == "EXT-X-MAP":
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info = _get_tuple_attribute(attr)
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# 4.3.2.6. EXT-X-PROGRAM-DATE-TIME"
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elif tag == "EXT-X-PROGRAM-DATE-TIME":
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info = attr
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# 4.3.2.7. EXT-X-DATERANGE
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elif tag == "EXT-X-DATERANGE":
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info = _get_tuple_attribute(attr)
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media_segment_info[tag] = info
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# 4.3.3. Media Playlist Tags
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elif tag in M3U8.MEDIA_PLAYLIST_TAGS:
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tag_type = M3U8.TAG_TYPES["MEDIA_PLAYLIST"]
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# 4.3.3.1. EXT-X-TARGETDURATION
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if tag == "EXT-X-TARGETDURATION":
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info = int(attr)
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# 4.3.3.2. EXT-X-MEDIA-SEQUENCE
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elif tag == "EXT-X-MEDIA-SEQUENCE":
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info = int(attr)
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# 4.3.3.3. EXT-X-DISCONTINUITY-SEQUENCE
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elif tag == "EXT-X-DISCONTINUITY-SEQUENCE":
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info = int(attr)
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# 4.3.3.4. EXT-X-ENDLIST
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elif tag == "EXT-X-ENDLIST":
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break
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# 4.3.3.5. EXT-X-PLAYLIST-TYPE
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elif tag == "EXT-X-PLAYLIST-TYPE":
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info = attr
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# 4.3.3.6. EXT-X-I-FRAMES-ONLY
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elif tag == "EXT-X-I-FRAMES-ONLY":
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pass
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self.media_playlist[tag] = info
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# 4.3.4. Master Playlist Tags
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elif tag in M3U8.MASTER_PLAYLIST_TAGS:
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tag_type = M3U8.TAG_TYPES["MASTER_PLAYLIST"]
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# 4.3.4.1. EXT-X-MEDIA
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if tag == "EXT-X-MEDIA":
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info = _get_tuple_attribute(attr)
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# 4.3.4.2. EXT-X-STREAM-INF
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elif tag == "EXT-X-STREAM-INF":
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info = _get_tuple_attribute(attr)
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if "BANDWIDTH" not in info:
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raise ValueError("Can't find 'BANDWIDTH' in 'EXT-X-STREAM-INF'")
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info["URI"] = lines[index + 1]
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# 4.3.4.3. EXT-X-I-FRAME-STREAM-INF
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elif tag == "EXT-X-I-FRAME-STREAM-INF":
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info = _get_tuple_attribute(attr)
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# 4.3.4.4. EXT-X-SESSION-DATA
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elif tag == "EXT-X-SESSION-DATA":
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info = _get_tuple_attribute(attr)
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# 4.3.4.5. EXT-X-SESSION-KEY
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elif tag == "EXT-X-SESSION-KEY":
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self.encrypted = True
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info = _get_tuple_attribute(attr)
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info["TAG"] = tag
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self.master_playlist.append(info)
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# 4.3.5. Media or Master Playlist Tags
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elif tag in M3U8.MEDIA_OR_MASTER_PLAYLIST_TAGS:
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tag_type = M3U8.TAG_TYPES["MEDIA_PLAYLIST"]
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# 4.3.5.1. EXT-X-INDEPENDENT-SEGMENTS
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if tag == "EXT-X-INDEPENDENT-SEGMENTS":
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self.independent_segments = True
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# 4.3.5.2. EXT-X-START
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elif tag == "EXT-X-START":
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info = _get_tuple_attribute(attr)
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self.media_playlist[tag] = info
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# Unused tags
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else:
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pass
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# This is a comment
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elif l.startswith("#"):
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pass
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# This must be a url/uri
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else:
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tag_type = None
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if last_tag_type is M3U8.TAG_TYPES["MEDIA_SEGMENT"]:
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media_segment_info["URI"] = l
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self.media_segment.append(media_segment_info)
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media_segment_info = {}
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last_tag_type = tag_type
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if self.media_segment and self.master_playlist:
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raise ValueError("This 'M3U8' file contains data for both 'Media Segment' and 'Master Playlist'. This is not allowed.")
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def _get_tag_attribute(line):
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line = line[1:]
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try:
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search_line = re.search(r"^([A-Z\-]*):(.*)", line)
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return search_line.group(1), search_line.group(2)
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except Exception:
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return line, None
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def _get_tuple_attribute(attribute):
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attr_tuple = {}
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for art_l in re.split(""",(?=(?:[^'"]|'[^']*'|"[^"]*")*$)""", attribute):
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if art_l:
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name, value = art_l.split("=", 1)
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name = name.strip()
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# Checks for attribute name
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if not re.match(r"^[A-Z0-9\-]*$", name):
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raise ValueError("Not a valid attribute name.")
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# Remove extra quotes of string
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if value.startswith('"') and value.endswith('"'):
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value = value[1:-1]
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attr_tuple[name] = value
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return attr_tuple |