mirror of
https://github.com/ytdl-org/youtube-dl.git
synced 2024-10-06 16:51:17 +00:00
90 lines
3.4 KiB
Python
Executable File
90 lines
3.4 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
import sys, os
|
|
import json, hashlib
|
|
|
|
try:
|
|
import urllib.request as compat_urllib_request
|
|
except ImportError: # Python 2
|
|
import urllib2 as compat_urllib_request
|
|
|
|
def rsa_verify(message, signature, key):
|
|
from struct import pack
|
|
from hashlib import sha256
|
|
from sys import version_info
|
|
def b(x):
|
|
if version_info[0] == 2: return x
|
|
else: return x.encode('latin1')
|
|
assert(type(message) == type(b('')))
|
|
block_size = 0
|
|
n = key[0]
|
|
while n:
|
|
block_size += 1
|
|
n >>= 8
|
|
signature = pow(int(signature, 16), key[1], key[0])
|
|
raw_bytes = []
|
|
while signature:
|
|
raw_bytes.insert(0, pack("B", signature & 0xFF))
|
|
signature >>= 8
|
|
signature = (block_size - len(raw_bytes)) * b('\x00') + b('').join(raw_bytes)
|
|
if signature[0:2] != b('\x00\x01'): return False
|
|
signature = signature[2:]
|
|
if not b('\x00') in signature: return False
|
|
signature = signature[signature.index(b('\x00'))+1:]
|
|
if not signature.startswith(b('\x30\x31\x30\x0D\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01\x05\x00\x04\x20')): return False
|
|
signature = signature[19:]
|
|
if signature != sha256(message).digest(): return False
|
|
return True
|
|
|
|
sys.stderr.write(u'Hi! We changed distribution method and now youtube-dl needs to update itself one more time.\n')
|
|
sys.stderr.write(u'This will only happen once. Simply press enter to go on. Sorry for the trouble!\n')
|
|
sys.stderr.write(u'From now on, get the binaries from http://rg3.github.io/youtube-dl/download.html, not from the git repository.\n\n')
|
|
|
|
try:
|
|
raw_input()
|
|
except NameError: # Python 3
|
|
input()
|
|
|
|
filename = sys.argv[0]
|
|
|
|
UPDATE_URL = "http://rg3.github.io/youtube-dl/update/"
|
|
VERSION_URL = UPDATE_URL + 'LATEST_VERSION'
|
|
JSON_URL = UPDATE_URL + 'versions.json'
|
|
UPDATES_RSA_KEY = (0x9d60ee4d8f805312fdb15a62f87b95bd66177b91df176765d13514a0f1754bcd2057295c5b6f1d35daa6742c3ffc9a82d3e118861c207995a8031e151d863c9927e304576bc80692bc8e094896fcf11b66f3e29e04e3a71e9a11558558acea1840aec37fc396fb6b65dc81a1c4144e03bd1c011de62e3f1357b327d08426fe93, 65537)
|
|
|
|
if not os.access(filename, os.W_OK):
|
|
sys.exit('ERROR: no write permissions on %s' % filename)
|
|
|
|
try:
|
|
versions_info = compat_urllib_request.urlopen(JSON_URL).read().decode('utf-8')
|
|
versions_info = json.loads(versions_info)
|
|
except:
|
|
sys.exit(u'ERROR: can\'t obtain versions info. Please try again later.')
|
|
if not 'signature' in versions_info:
|
|
sys.exit(u'ERROR: the versions file is not signed or corrupted. Aborting.')
|
|
signature = versions_info['signature']
|
|
del versions_info['signature']
|
|
if not rsa_verify(json.dumps(versions_info, sort_keys=True).encode('utf-8'), signature, UPDATES_RSA_KEY):
|
|
sys.exit(u'ERROR: the versions file signature is invalid. Aborting.')
|
|
|
|
version = versions_info['versions'][versions_info['latest']]
|
|
|
|
try:
|
|
urlh = compat_urllib_request.urlopen(version['bin'][0])
|
|
newcontent = urlh.read()
|
|
urlh.close()
|
|
except (IOError, OSError) as err:
|
|
sys.exit('ERROR: unable to download latest version')
|
|
|
|
newcontent_hash = hashlib.sha256(newcontent).hexdigest()
|
|
if newcontent_hash != version['bin'][1]:
|
|
sys.exit(u'ERROR: the downloaded file hash does not match. Aborting.')
|
|
|
|
try:
|
|
with open(filename, 'wb') as outf:
|
|
outf.write(newcontent)
|
|
except (IOError, OSError) as err:
|
|
sys.exit('ERROR: unable to overwrite current version')
|
|
|
|
sys.stderr.write(u'Done! Now you can run youtube-dl.\n')
|