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The new updates system, relies on gh-pages, secured by RSA, uses external web servers

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This commit is contained in:
Filippo Valsorda 2012-12-26 23:22:49 +01:00
parent 0deac3a2d8
commit cb6ff87fbb
6 changed files with 224 additions and 58 deletions
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1
.gitignore vendored
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@ -16,3 +16,4 @@ youtube-dl.exe
youtube-dl.tar.gz
.coverage
cover/
updates_key.pem

63
devscripts/transition_helper_exe/youtube-dl.py
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@ -2,17 +2,48 @@
import sys, os
import urllib2
import json, hashlib
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'The new location of the binaries is https://github.com/rg3/youtube-dl/downloads, not the git repository.\n\n')
sys.stderr.write(u'From now on, get the binaries from http://rg3.github.com/youtube-dl/download.html, not from the git repository.\n\n')
raw_input()
filename = sys.argv[0]
API_URL = "https://api.github.com/repos/rg3/youtube-dl/downloads"
EXE_URL = "https://github.com/downloads/rg3/youtube-dl/youtube-dl.exe"
UPDATE_URL = "http://rg3.github.com/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)
@ -23,13 +54,35 @@
sys.exit('ERROR: no write permissions on %s' % directory)
try:
urlh = urllib2.urlopen(EXE_URL)
versions_info = urllib2.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), signature, UPDATES_RSA_KEY):
sys.exit(u'ERROR: the versions file signature is invalid. Aborting.')
version = versions_info['versions'][versions_info['latest']]
try:
urlh = urllib2.urlopen(version['exe'][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['exe'][1]:
sys.exit(u'ERROR: the downloaded file hash does not match. Aborting.')
try:
with open(exe + '.new', 'wb') as outf:
outf.write(newcontent)
except (IOError, OSError) as err:
sys.exit('ERROR: unable to download latest version')
sys.exit(u'ERROR: unable to write the new version')
try:
bat = os.path.join(directory, 'youtube-dl-updater.bat')

57
youtube-dl
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@ -1,15 +1,44 @@
#!/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'The new location of the binaries is https://github.com/rg3/youtube-dl/downloads, not the git repository.\n\n')
sys.stderr.write(u'From now on, get the binaries from http://rg3.github.com/youtube-dl/download.html, not from the git repository.\n\n')
try:
raw_input()
@ -18,19 +47,39 @@ except NameError: # Python 3
filename = sys.argv[0]
API_URL = "https://api.github.com/repos/rg3/youtube-dl/downloads"
BIN_URL = "https://github.com/downloads/rg3/youtube-dl/youtube-dl"
UPDATE_URL = "http://rg3.github.com/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:
urlh = compat_urllib_request.urlopen(BIN_URL)
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), 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)

BIN
youtube-dl.exe
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Binary file not shown.

133
youtube_dl/__init__.py
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@ -41,47 +41,90 @@
from .InfoExtractors import *
from .PostProcessor import *
def updateSelf(downloader, filename):
def update_self(to_screen, verbose, filename):
"""Update the program file with the latest version from the repository"""
# TODO: at least, check https certificates
from zipimport import zipimporter
import json, traceback, hashlib
API_URL = "https://api.github.com/repos/rg3/youtube-dl/downloads"
BIN_URL = "https://github.com/downloads/rg3/youtube-dl/youtube-dl"
EXE_URL = "https://github.com/downloads/rg3/youtube-dl/youtube-dl.exe"
UPDATE_URL = "http://rg3.github.com/youtube-dl/update/"
VERSION_URL = UPDATE_URL + 'LATEST_VERSION'
JSON_URL = UPDATE_URL + 'versions.json'
UPDATES_RSA_KEY = (0x9d60ee4d8f805312fdb15a62f87b95bd66177b91df176765d13514a0f1754bcd2057295c5b6f1d35daa6742c3ffc9a82d3e118861c207995a8031e151d863c9927e304576bc80692bc8e094896fcf11b66f3e29e04e3a71e9a11558558acea1840aec37fc396fb6b65dc81a1c4144e03bd1c011de62e3f1357b327d08426fe93, 65537)
if hasattr(sys, "frozen"): # PY2EXE
if not os.access(filename, os.W_OK):
sys.exit('ERROR: no write permissions on %s' % filename)
downloader.to_screen(u'Updating to latest version...')
if not isinstance(globals().get('__loader__'), zipimporter) and not hasattr(sys, "frozen"):
to_screen(u'It looks like you installed youtube-dl with pip, setup.py or a tarball. Please use that to update.')
return
urla = compat_urllib_request.urlopen(API_URL)
download = filter(lambda x: x["name"] == "youtube-dl.exe", json.loads(urla.read()))
if not download:
downloader.to_screen(u'ERROR: can\'t find the current version. Please try again later.')
return
newversion = download[0]["description"].strip()
if newversion == __version__:
downloader.to_screen(u'youtube-dl is up-to-date (' + __version__ + ')')
return
urla.close()
# Check if there is a new version
try:
newversion = compat_urllib_request.urlopen(VERSION_URL).read().decode('utf-8').strip()
except:
if verbose: to_screen(traceback.format_exc().decode())
to_screen(u'ERROR: can\'t find the current version. Please try again later.')
return
if newversion == __version__:
to_screen(u'youtube-dl is up-to-date (' + __version__ + ')')
return
# Download and check versions info
try:
versions_info = compat_urllib_request.urlopen(JSON_URL).read().decode('utf-8')
versions_info = json.loads(versions_info)
except:
if verbose: to_screen(traceback.format_exc().decode())
to_screen(u'ERROR: can\'t obtain versions info. Please try again later.')
return
if not 'signature' in versions_info:
to_screen(u'ERROR: the versions file is not signed or corrupted. Aborting.')
return
signature = versions_info['signature']
del versions_info['signature']
if not rsa_verify(json.dumps(versions_info, sort_keys=True), signature, UPDATES_RSA_KEY):
to_screen(u'ERROR: the versions file signature is invalid. Aborting.')
return
to_screen(u'Updating to version ' + versions_info['latest'] + '...')
version = versions_info['versions'][versions_info['latest']]
if version.get('notes'):
to_screen(u'PLEASE NOTE:')
for note in version['notes']:
to_screen(note)
if not os.access(filename, os.W_OK):
to_screen(u'ERROR: no write permissions on %s' % filename)
return
# Py2EXE
if hasattr(sys, "frozen"):
exe = os.path.abspath(filename)
directory = os.path.dirname(exe)
if not os.access(directory, os.W_OK):
sys.exit('ERROR: no write permissions on %s' % directory)
to_screen(u'ERROR: no write permissions on %s' % directory)
return
try:
urlh = compat_urllib_request.urlopen(EXE_URL)
urlh = compat_urllib_request.urlopen(version['exe'][0])
newcontent = urlh.read()
urlh.close()
except (IOError, OSError) as err:
if verbose: to_screen(traceback.format_exc().decode())
to_screen(u'ERROR: unable to download latest version')
return
newcontent_hash = hashlib.sha256(newcontent).hexdigest()
if newcontent_hash != version['exe'][1]:
to_screen(u'ERROR: the downloaded file hash does not match. Aborting.')
return
try:
with open(exe + '.new', 'wb') as outf:
outf.write(newcontent)
except (IOError, OSError) as err:
sys.exit('ERROR: unable to download latest version')
if verbose: to_screen(traceback.format_exc().decode())
to_screen(u'ERROR: unable to write the new version')
return
try:
bat = os.path.join(directory, 'youtube-dl-updater.bat')
@ -96,43 +139,35 @@ def updateSelf(downloader, filename):
os.startfile(bat)
except (IOError, OSError) as err:
sys.exit('ERROR: unable to overwrite current version')
elif isinstance(globals().get('__loader__'), zipimporter): # UNIX ZIP
if not os.access(filename, os.W_OK):
sys.exit('ERROR: no write permissions on %s' % filename)
downloader.to_screen(u'Updating to latest version...')
urla = compat_urllib_request.urlopen(API_URL)
download = [x for x in json.loads(urla.read().decode('utf8')) if x["name"] == "youtube-dl"]
if not download:
downloader.to_screen(u'ERROR: can\'t find the current version. Please try again later.')
if verbose: to_screen(traceback.format_exc().decode())
to_screen(u'ERROR: unable to overwrite current version')
return
newversion = download[0]["description"].strip()
if newversion == __version__:
downloader.to_screen(u'youtube-dl is up-to-date (' + __version__ + ')')
return
urla.close()
# Zip unix package
elif isinstance(globals().get('__loader__'), zipimporter):
try:
urlh = compat_urllib_request.urlopen(BIN_URL)
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')
if verbose: to_screen(traceback.format_exc().decode())
to_screen(u'ERROR: unable to download latest version')
return
newcontent_hash = hashlib.sha256(newcontent).hexdigest()
if newcontent_hash != version['bin'][1]:
to_screen(u'ERROR: the downloaded file hash does not match. Aborting.')
return
try:
with open(filename, 'wb') as outf:
outf.write(newcontent)
except (IOError, OSError) as err:
sys.exit('ERROR: unable to overwrite current version')
if verbose: to_screen(traceback.format_exc().decode())
to_screen(u'ERROR: unable to overwrite current version')
return
else:
downloader.to_screen(u'It looks like you installed youtube-dl with pip or setup.py. Please use that to update.')
return
downloader.to_screen(u'Updated youtube-dl. Restart youtube-dl to use the new version.')
to_screen(u'Updated youtube-dl. Restart youtube-dl to use the new version.')
def parseOpts():
def _readOptions(filename_bytes):
@ -578,7 +613,7 @@ def _real_main():
# Update version
if opts.update_self:
updateSelf(fd, sys.argv[0])
update_self(fd.to_screen, opts.verbose, sys.argv[0])
# Maybe do nothing
if len(all_urls) < 1:

28
youtube_dl/utils.py
View File

@ -410,6 +410,34 @@ def encodeFilename(s):
else:
return s.encode(sys.getfilesystemencoding(), 'ignore')
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
class DownloadError(Exception):
"""Download Error exception.