youtube_dlc/update.py

   1 from __future__ import unicode_literals
   2
   3 import io
   4 import json
   5 import traceback
   6 import hashlib
   7 import os
   8 import subprocess
   9 import sys
  10 from zipimport import zipimporter
  11
  12 from .compat import compat_realpath
  13 from .utils import encode_compat_str
  14
  15 from .version import __version__
  16
  17
  18 '''  # Not signed
  19 def rsa_verify(message, signature, key):
  20     from hashlib import sha256
  21     assert isinstance(message, bytes)
  22     byte_size = (len(bin(key[0])) - 2 + 8 - 1) // 8
  23     signature = ('%x' % pow(int(signature, 16), key[1], key[0])).encode()
  24     signature = (byte_size * 2 - len(signature)) * b'0' + signature
  25     asn1 = b'3031300d060960864801650304020105000420'
  26     asn1 += sha256(message).hexdigest().encode()
  27     if byte_size < len(asn1) // 2 + 11:
  28         return False
  29     expected = b'0001' + (byte_size - len(asn1) // 2 - 3) * b'ff' + b'00' + asn1
  30     return expected == signature
  31 '''
  32
  33
  34 def update_self(to_screen, verbose, opener):
  35     """Update the program file with the latest version from the repository"""
  36
  37     JSON_URL = 'https://api.github.com/repos/pukkandan/yt-dlp/releases/latest'
  38
  39     def sha256sum():
  40         h = hashlib.sha256()
  41         b = bytearray(128 * 1024)
  42         mv = memoryview(b)
  43         with open(os.path.realpath(sys.executable), 'rb', buffering=0) as f:
  44             for n in iter(lambda: f.readinto(mv), 0):
  45                 h.update(mv[:n])
  46         return h.hexdigest()
  47
  48     to_screen('Current Build Hash %s' % sha256sum())
  49
  50     if not isinstance(globals().get('__loader__'), zipimporter) and not hasattr(sys, 'frozen'):
  51         to_screen('It looks like you installed youtube-dlc with a package manager, pip, setup.py or a tarball. Please use that to update.')
  52         return
  53
  54     # Download and check versions info
  55     try:
  56         version_info = opener.open(JSON_URL).read().decode('utf-8')
  57         version_info = json.loads(version_info)
  58     except Exception:
  59         if verbose:
  60             to_screen(encode_compat_str(traceback.format_exc()))
  61         to_screen('ERROR: can\'t obtain versions info. Please try again later.')
  62         to_screen('Visit https://github.com/pukkandan/yt-dlp/releases/lastest')
  63         return
  64
  65     version_id = version_info['tag_name']
  66     if version_id == __version__:
  67         to_screen('youtube-dlc is up-to-date (' + __version__ + ')')
  68         return
  69
  70     def version_tuple(version_str):
  71         return tuple(map(int, version_str.split('.')))
  72
  73     if version_tuple(__version__) >= version_tuple(version_id):
  74         to_screen('youtube-dlc is up to date (%s)' % __version__)
  75         return
  76
  77     to_screen('Updating to version ' + version_id + ' ...')
  78
  79     version = {
  80         'bin': next(i for i in version_info['assets'] if i['name'] == 'youtube-dlc'),
  81         'exe': next(i for i in version_info['assets'] if i['name'] == 'youtube-dlc.exe'),
  82         'exe_x86': next(i for i in version_info['assets'] if i['name'] == 'youtube-dlc_x86.exe'),
  83     }
  84
  85     # sys.executable is set to the full pathname of the exe-file for py2exe
  86     # though symlinks are not followed so that we need to do this manually
  87     # with help of realpath
  88     filename = compat_realpath(sys.executable if hasattr(sys, 'frozen') else sys.argv[0])
  89
  90     if not os.access(filename, os.W_OK):
  91         to_screen('ERROR: no write permissions on %s' % filename)
  92         return
  93
  94     # PyInstaller
  95     if hasattr(sys, 'frozen'):
  96         exe = filename
  97         directory = os.path.dirname(exe)
  98         if not os.access(directory, os.W_OK):
  99             to_screen('ERROR: no write permissions on %s' % directory)
 100             return
 101
 102         try:
 103             urlh = opener.open(version['exe']['browser_download_url'])
 104             newcontent = urlh.read()
 105             urlh.close()
 106         except (IOError, OSError):
 107             if verbose:
 108                 to_screen(encode_compat_str(traceback.format_exc()))
 109             to_screen('ERROR: unable to download latest version')
 110             to_screen('Visit https://github.com/pukkandan/yt-dlp/releases/lastest')
 111             return
 112
 113         try:
 114             with open(exe + '.new', 'wb') as outf:
 115                 outf.write(newcontent)
 116         except (IOError, OSError):
 117             if verbose:
 118                 to_screen(encode_compat_str(traceback.format_exc()))
 119             to_screen('ERROR: unable to write the new version')
 120             return
 121
 122         try:
 123             bat = os.path.join(directory, 'yt-dlp-updater.cmd')
 124             with io.open(bat, 'w') as batfile:
 125                 batfile.write('''
 126 @(
 127     echo.Waiting for file handle to be closed ...
 128     ping 127.0.0.1 -n 5 -w 1000 > NUL
 129     move /Y "%s.new" "%s" > NUL
 130     echo.Updated youtube-dlc to version %s.
 131 )
 132 @start /b "" cmd /c del "%%~f0"&exit /b
 133                 ''' % (exe, exe, version_id))
 134
 135             subprocess.Popen([bat])  # Continues to run in the background
 136             return  # Do not show premature success messages
 137         except (IOError, OSError):
 138             if verbose:
 139                 to_screen(encode_compat_str(traceback.format_exc()))
 140             to_screen('ERROR: unable to overwrite current version')
 141             return
 142
 143     # Zip unix package
 144     elif isinstance(globals().get('__loader__'), zipimporter):
 145         try:
 146             urlh = opener.open(version['bin']['browser_download_url'])
 147             newcontent = urlh.read()
 148             urlh.close()
 149         except (IOError, OSError):
 150             if verbose:
 151                 to_screen(encode_compat_str(traceback.format_exc()))
 152             to_screen('ERROR: unable to download latest version')
 153             to_screen('Visit https://github.com/pukkandan/yt-dlp/releases/lastest')
 154             return
 155
 156         try:
 157             with open(filename, 'wb') as outf:
 158                 outf.write(newcontent)
 159         except (IOError, OSError):
 160             if verbose:
 161                 to_screen(encode_compat_str(traceback.format_exc()))
 162             to_screen('ERROR: unable to overwrite current version')
 163             return
 164
 165     to_screen('Updated youtube-dlc. Restart youtube-dlc to use the new version.')
 166
 167
 168 '''  # UNUSED
 169 def get_notes(versions, fromVersion):
 170     notes = []
 171     for v, vdata in sorted(versions.items()):
 172         if v > fromVersion:
 173             notes.extend(vdata.get('notes', []))
 174     return notes
 175
 176
 177 def print_notes(to_screen, versions, fromVersion=__version__):
 178     notes = get_notes(versions, fromVersion)
 179     if notes:
 180         to_screen('PLEASE NOTE:')
 181         for note in notes:
 182             to_screen(note)
 183 '''