mirror of
https://github.com/ytdl-org/youtube-dl.git
synced 2024-11-16 12:03:28 +01:00
c6e4b225b1
Fixes 9656ee5d1d
New year's resolution: Check which systems of Ubuntu / RHEL still serve the ancient versions.
If it's only RHEL, consider removing these binary files in 2015 or so.
90 lines
3.4 KiB
Python
Executable File
90 lines
3.4 KiB
Python
Executable File
#!/usr/bin/env python
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import sys, os
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import json, hashlib
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try:
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import urllib.request as compat_urllib_request
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except ImportError: # Python 2
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import urllib2 as compat_urllib_request
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def rsa_verify(message, signature, key):
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from struct import pack
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from hashlib import sha256
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from sys import version_info
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def b(x):
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if version_info[0] == 2: return x
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else: return x.encode('latin1')
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assert(type(message) == type(b('')))
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block_size = 0
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n = key[0]
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while n:
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block_size += 1
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n >>= 8
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signature = pow(int(signature, 16), key[1], key[0])
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raw_bytes = []
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while signature:
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raw_bytes.insert(0, pack("B", signature & 0xFF))
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signature >>= 8
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signature = (block_size - len(raw_bytes)) * b('\x00') + b('').join(raw_bytes)
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if signature[0:2] != b('\x00\x01'): return False
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signature = signature[2:]
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if not b('\x00') in signature: return False
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signature = signature[signature.index(b('\x00'))+1:]
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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
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signature = signature[19:]
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if signature != sha256(message).digest(): return False
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return True
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sys.stderr.write(u'Hi! We changed distribution method and now youtube-dl needs to update itself one more time.\n')
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sys.stderr.write(u'This will only happen once. Simply press enter to go on. Sorry for the trouble!\n')
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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')
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try:
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raw_input()
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except NameError: # Python 3
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input()
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filename = sys.argv[0]
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UPDATE_URL = "http://rg3.github.io/youtube-dl/update/"
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VERSION_URL = UPDATE_URL + 'LATEST_VERSION'
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JSON_URL = UPDATE_URL + 'versions.json'
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UPDATES_RSA_KEY = (0x9d60ee4d8f805312fdb15a62f87b95bd66177b91df176765d13514a0f1754bcd2057295c5b6f1d35daa6742c3ffc9a82d3e118861c207995a8031e151d863c9927e304576bc80692bc8e094896fcf11b66f3e29e04e3a71e9a11558558acea1840aec37fc396fb6b65dc81a1c4144e03bd1c011de62e3f1357b327d08426fe93, 65537)
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if not os.access(filename, os.W_OK):
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sys.exit('ERROR: no write permissions on %s' % filename)
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try:
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versions_info = compat_urllib_request.urlopen(JSON_URL).read().decode('utf-8')
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versions_info = json.loads(versions_info)
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except:
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sys.exit(u'ERROR: can\'t obtain versions info. Please try again later.')
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if not 'signature' in versions_info:
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sys.exit(u'ERROR: the versions file is not signed or corrupted. Aborting.')
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signature = versions_info['signature']
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del versions_info['signature']
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if not rsa_verify(json.dumps(versions_info, sort_keys=True).encode('utf-8'), signature, UPDATES_RSA_KEY):
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sys.exit(u'ERROR: the versions file signature is invalid. Aborting.')
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version = versions_info['versions'][versions_info['latest']]
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try:
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urlh = compat_urllib_request.urlopen(version['bin'][0])
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newcontent = urlh.read()
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urlh.close()
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except (IOError, OSError) as err:
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sys.exit('ERROR: unable to download latest version')
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newcontent_hash = hashlib.sha256(newcontent).hexdigest()
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if newcontent_hash != version['bin'][1]:
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sys.exit(u'ERROR: the downloaded file hash does not match. Aborting.')
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try:
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with open(filename, 'wb') as outf:
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outf.write(newcontent)
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except (IOError, OSError) as err:
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sys.exit('ERROR: unable to overwrite current version')
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sys.stderr.write(u'Done! Now you can run youtube-dl.\n')
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