mirror of
https://github.com/spaam/svtplay-dl.git
synced 2024-11-25 12:45:42 +01:00
125 lines
3.6 KiB
Python
125 lines
3.6 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 sys
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import os
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import re
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import time
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from datetime import timedelta
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from svtplay.utils import get_http_data, select_quality
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from svtplay.output import progressbar, progress_stream
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from svtplay.log import log
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if sys.version_info > (3, 0):
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from io import BytesIO as StringIO
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else:
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from StringIO import StringIO
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def download_hls(options, url, baseurl=None):
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data = get_http_data(url)
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globaldata, files = parsem3u(data)
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streams = {}
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for i in files:
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streams[int(i[1]["BANDWIDTH"])] = i[0]
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test = select_quality(options, streams)
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if baseurl and test[:4] != 'http':
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test = "%s/%s" % (baseurl, test)
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m3u8 = get_http_data(test)
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globaldata, files = parsem3u(m3u8)
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encrypted = False
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key = None
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try:
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keydata = globaldata["KEY"]
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encrypted = True
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except:
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pass
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if encrypted:
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try:
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from Crypto.Cipher import AES
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except ImportError:
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log.error("You need to install pycrypto to download encrypted HLS streams")
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sys.exit(2)
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match = re.search("URI=\"(http://.*)\"", keydata)
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key = get_http_data(match.group(1))
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rand = os.urandom(16)
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decryptor = AES.new(key, AES.MODE_CBC, rand)
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n = 1
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if options.output != "-":
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extension = re.search("(\.[a-z0-9]+)$", options.output)
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if not extension:
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options.output = "%s.ts" % options.output
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log.info("Outfile: %s", options.output)
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file_d = open(options.output, "wb")
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else:
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file_d = sys.stdout
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start = time.time()
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estimated = ""
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for i in files:
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item = i[0]
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if options.output != "-":
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progressbar(len(files), n, estimated)
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if item[0:5] != "http:":
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item = "%s/%s" % (baseurl, item)
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data = get_http_data(item)
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if encrypted:
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lots = StringIO(data)
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plain = b""
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crypt = lots.read(1024)
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decrypted = decryptor.decrypt(crypt)
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while decrypted:
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plain += decrypted
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crypt = lots.read(1024)
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decrypted = decryptor.decrypt(crypt)
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data = plain
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file_d.write(data)
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now = time.time()
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dt = now - start
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et = dt / (n + 1) * len(files)
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rt = et - dt
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td = timedelta(seconds = int(rt))
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estimated = "Estimated Remaining: " + str(td)
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n += 1
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if options.output != "-":
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file_d.close()
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progress_stream.write('\n')
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def parsem3u(data):
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if not data.startswith("#EXTM3U"):
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raise ValueError("Does not apprear to be a ext m3u file")
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files = []
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streaminfo = {}
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globdata = {}
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data = data.replace("\r", "\n")
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for l in data.split("\n")[1:]:
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if not l:
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continue
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if l.startswith("#EXT-X-STREAM-INF:"):
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#not a proper parser
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info = [x.strip().split("=", 1) for x in l[18:].split(",")]
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streaminfo.update({info[1][0]: info[1][1]})
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elif l.startswith("#EXT-X-ENDLIST"):
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break
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elif l.startswith("#EXT-X-"):
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globdata.update(dict([l[7:].strip().split(":", 1)]))
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elif l.startswith("#EXTINF:"):
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dur, title = l[8:].strip().split(",", 1)
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streaminfo['duration'] = dur
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streaminfo['title'] = title
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elif l[0] == '#':
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pass
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else:
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files.append((l, streaminfo))
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streaminfo = {}
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return globdata, files
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