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-rw-r--r--youtube_dl/update.py160
1 files changed, 160 insertions, 0 deletions
diff --git a/youtube_dl/update.py b/youtube_dl/update.py
new file mode 100644
index 000000000..f6e3e5c69
--- /dev/null
+++ b/youtube_dl/update.py
@@ -0,0 +1,160 @@
+import json
+import traceback
+import hashlib
+from zipimport import zipimporter
+
+from .utils import *
+from .version import __version__
+
+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
+
+def update_self(to_screen, verbose, filename):
+ """Update the program file with the latest version from the repository"""
+
+ 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 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
+
+ # 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(compat_str(traceback.format_exc()))
+ 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(compat_str(traceback.format_exc()))
+ 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).encode('utf-8'), 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):
+ to_screen(u'ERROR: no write permissions on %s' % directory)
+ return
+
+ try:
+ urlh = compat_urllib_request.urlopen(version['exe'][0])
+ newcontent = urlh.read()
+ urlh.close()
+ except (IOError, OSError) as err:
+ if verbose: to_screen(compat_str(traceback.format_exc()))
+ 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:
+ if verbose: to_screen(compat_str(traceback.format_exc()))
+ to_screen(u'ERROR: unable to write the new version')
+ return
+
+ try:
+ bat = os.path.join(directory, 'youtube-dl-updater.bat')
+ b = open(bat, 'w')
+ b.write("""
+echo Updating youtube-dl...
+ping 127.0.0.1 -n 5 -w 1000 > NUL
+move /Y "%s.new" "%s"
+del "%s"
+ \n""" %(exe, exe, bat))
+ b.close()
+
+ os.startfile(bat)
+ except (IOError, OSError) as err:
+ if verbose: to_screen(compat_str(traceback.format_exc()))
+ to_screen(u'ERROR: unable to overwrite current version')
+ return
+
+ # Zip unix package
+ elif isinstance(globals().get('__loader__'), zipimporter):
+ try:
+ urlh = compat_urllib_request.urlopen(version['bin'][0])
+ newcontent = urlh.read()
+ urlh.close()
+ except (IOError, OSError) as err:
+ if verbose: to_screen(compat_str(traceback.format_exc()))
+ 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:
+ if verbose: to_screen(compat_str(traceback.format_exc()))
+ to_screen(u'ERROR: unable to overwrite current version')
+ return
+
+ to_screen(u'Updated youtube-dl. Restart youtube-dl to use the new version.')