1 from __future__ import unicode_literals
10 from zipimport import zipimporter
12 from .utils import encode_compat_str
14 from .version import __version__
17 def rsa_verify(message, signature, key):
18 from hashlib import sha256
19 assert isinstance(message, bytes)
20 byte_size = (len(bin(key[0])) - 2 + 8 - 1) // 8
21 signature = ('%x' % pow(int(signature, 16), key[1], key[0])).encode()
22 signature = (byte_size * 2 - len(signature)) * b'0' + signature
23 asn1 = b'3031300d060960864801650304020105000420'
24 asn1 += sha256(message).hexdigest().encode()
25 if byte_size < len(asn1) // 2 + 11:
27 expected = b'0001' + (byte_size - len(asn1) // 2 - 3) * b'ff' + b'00' + asn1
28 return expected == signature
31 def update_self(to_screen, verbose, opener, prefer_insecure=False):
32 """Update the program file with the latest version from the repository"""
34 UPDATE_URL = '//rg3.github.io/youtube-dl/update/'
35 VERSION_URL = UPDATE_URL + 'LATEST_VERSION'
36 JSON_URL = UPDATE_URL + 'versions.json'
37 UPDATES_RSA_KEY = (0x9d60ee4d8f805312fdb15a62f87b95bd66177b91df176765d13514a0f1754bcd2057295c5b6f1d35daa6742c3ffc9a82d3e118861c207995a8031e151d863c9927e304576bc80692bc8e094896fcf11b66f3e29e04e3a71e9a11558558acea1840aec37fc396fb6b65dc81a1c4144e03bd1c011de62e3f1357b327d08426fe93, 65537)
39 if not isinstance(globals().get('__loader__'), zipimporter) and not hasattr(sys, 'frozen'):
40 to_screen('It looks like you installed youtube-dl with a package manager, pip, setup.py or a tarball. Please use that to update.')
43 def guess_scheme(url, insecure=False):
44 return 'http%s:%s' % ('' if insecure is True else 's', url)
46 # Check if there is a new version
48 newversion = opener.open(guess_scheme(
49 VERSION_URL, prefer_insecure)).read().decode('utf-8').strip()
52 to_screen(encode_compat_str(traceback.format_exc()))
53 to_screen('ERROR: can\'t find the current version. Please try again later.')
55 if newversion == __version__:
56 to_screen('youtube-dl is up-to-date (' + __version__ + ')')
59 # Download and check versions info
61 versions_info = opener.open(guess_scheme(
62 JSON_URL, prefer_insecure)).read().decode('utf-8')
63 versions_info = json.loads(versions_info)
66 to_screen(encode_compat_str(traceback.format_exc()))
67 to_screen('ERROR: can\'t obtain versions info. Please try again later.')
69 if 'signature' not in versions_info:
70 to_screen('ERROR: the versions file is not signed or corrupted. Aborting.')
72 signature = versions_info['signature']
73 del versions_info['signature']
74 if not rsa_verify(json.dumps(versions_info, sort_keys=True).encode('utf-8'), signature, UPDATES_RSA_KEY):
75 to_screen('ERROR: the versions file signature is invalid. Aborting.')
78 version_id = versions_info['latest']
80 def version_tuple(version_str):
81 return tuple(map(int, version_str.split('.')))
82 if version_tuple(__version__) >= version_tuple(version_id):
83 to_screen('youtube-dl is up to date (%s)' % __version__)
86 to_screen('Updating to version ' + version_id + ' ...')
87 version = versions_info['versions'][version_id]
89 print_notes(to_screen, versions_info['versions'])
91 # sys.executable is set to the full pathname of the exe-file for py2exe
92 filename = sys.executable if hasattr(sys, 'frozen') else sys.argv[0]
94 if not os.access(filename, os.W_OK):
95 to_screen('ERROR: no write permissions on %s' % filename)
99 if hasattr(sys, 'frozen'):
101 directory = os.path.dirname(exe)
102 if not os.access(directory, os.W_OK):
103 to_screen('ERROR: no write permissions on %s' % directory)
107 urlh = opener.open(version['exe'][0])
108 newcontent = urlh.read()
110 except (IOError, OSError):
112 to_screen(encode_compat_str(traceback.format_exc()))
113 to_screen('ERROR: unable to download latest version')
116 newcontent_hash = hashlib.sha256(newcontent).hexdigest()
117 if newcontent_hash != version['exe'][1]:
118 to_screen('ERROR: the downloaded file hash does not match. Aborting.')
122 with open(exe + '.new', 'wb') as outf:
123 outf.write(newcontent)
124 except (IOError, OSError):
126 to_screen(encode_compat_str(traceback.format_exc()))
127 to_screen('ERROR: unable to write the new version')
131 bat = os.path.join(directory, 'youtube-dl-updater.bat')
132 with io.open(bat, 'w') as batfile:
135 echo Waiting for file handle to be closed ...
136 ping 127.0.0.1 -n 5 -w 1000 > NUL
137 move /Y "%s.new" "%s" > NUL
138 echo Updated youtube-dl to version %s.
139 start /b "" cmd /c del "%%~f0"&exit /b"
140 \n''' % (exe, exe, version_id))
142 subprocess.Popen([bat]) # Continues to run in the background
143 return # Do not show premature success messages
144 except (IOError, OSError):
146 to_screen(encode_compat_str(traceback.format_exc()))
147 to_screen('ERROR: unable to overwrite current version')
151 elif isinstance(globals().get('__loader__'), zipimporter):
153 urlh = opener.open(version['bin'][0])
154 newcontent = urlh.read()
156 except (IOError, OSError):
158 to_screen(encode_compat_str(traceback.format_exc()))
159 to_screen('ERROR: unable to download latest version')
162 newcontent_hash = hashlib.sha256(newcontent).hexdigest()
163 if newcontent_hash != version['bin'][1]:
164 to_screen('ERROR: the downloaded file hash does not match. Aborting.')
168 with open(filename, 'wb') as outf:
169 outf.write(newcontent)
170 except (IOError, OSError):
172 to_screen(encode_compat_str(traceback.format_exc()))
173 to_screen('ERROR: unable to overwrite current version')
176 to_screen('Updated youtube-dl. Restart youtube-dl to use the new version.')
179 def get_notes(versions, fromVersion):
181 for v, vdata in sorted(versions.items()):
183 notes.extend(vdata.get('notes', []))
187 def print_notes(to_screen, versions, fromVersion=__version__):
188 notes = get_notes(versions, fromVersion)
190 to_screen('PLEASE NOTE:')