yt_dlp/update.py

   1 from __future__ import unicode_literals
   2
   3 import hashlib
   4 import json
   5 import os
   6 import platform
   7 import subprocess
   8 import sys
   9 import traceback
  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     ''' Exists for backward compatibility. Use run_update(ydl) instead '''
  36
  37     printfn = to_screen
  38
  39     class FakeYDL():
  40         _opener = opener
  41         to_screen = printfn
  42
  43         @staticmethod
  44         def report_warning(msg, *args, **kwargs):
  45             return printfn('WARNING: %s' % msg, *args, **kwargs)
  46
  47         @staticmethod
  48         def report_error(msg, tb=None):
  49             printfn('ERROR: %s' % msg)
  50             if not verbose:
  51                 return
  52             if tb is None:
  53                 # Copied from YoutubeDl.trouble
  54                 if sys.exc_info()[0]:
  55                     tb = ''
  56                     if hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]:
  57                         tb += ''.join(traceback.format_exception(*sys.exc_info()[1].exc_info))
  58                     tb += encode_compat_str(traceback.format_exc())
  59                 else:
  60                     tb_data = traceback.format_list(traceback.extract_stack())
  61                     tb = ''.join(tb_data)
  62             if tb:
  63                 printfn(tb)
  64
  65     return run_update(FakeYDL())
  66
  67
  68 def run_update(ydl):
  69     """
  70     Update the program file with the latest version from the repository
  71     Returns whether the program should terminate
  72     """
  73
  74     JSON_URL = 'https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest'
  75
  76     def report_error(msg, network=False, expected=False, delim=';'):
  77         if network:
  78             msg += '%s Visit  https://github.com/yt-dlp/yt-dlp/releases/latest' % delim
  79         ydl.report_error(msg, tb='' if network or expected else None)
  80
  81     def calc_sha256sum(path):
  82         h = hashlib.sha256()
  83         b = bytearray(128 * 1024)
  84         mv = memoryview(b)
  85         with open(os.path.realpath(path), 'rb', buffering=0) as f:
  86             for n in iter(lambda: f.readinto(mv), 0):
  87                 h.update(mv[:n])
  88         return h.hexdigest()
  89
  90     if not isinstance(globals().get('__loader__'), zipimporter) and not hasattr(sys, 'frozen'):
  91         return report_error(
  92             'It looks like you installed yt-dlp with a package manager, pip, setup.py or a tarball. '
  93             'Please use that to update', expected=True)
  94
  95     # sys.executable is set to the full pathname of the exe-file for py2exe
  96     # though symlinks are not followed so that we need to do this manually
  97     # with help of realpath
  98     filename = compat_realpath(sys.executable if hasattr(sys, 'frozen') else sys.argv[0])
  99     ydl.to_screen('Current Build Hash %s' % calc_sha256sum(filename))
 100
 101     # Download and check versions info
 102     try:
 103         version_info = ydl._opener.open(JSON_URL).read().decode('utf-8')
 104         version_info = json.loads(version_info)
 105     except Exception:
 106         return report_error('can\'t obtain versions info. Please try again later ', True, delim='or')
 107
 108     def version_tuple(version_str):
 109         return tuple(map(int, version_str.split('.')))
 110
 111     version_id = version_info['tag_name']
 112     if version_tuple(__version__) >= version_tuple(version_id):
 113         ydl.to_screen('yt-dlp is up to date (%s)' % __version__)
 114         return
 115
 116     ydl.to_screen('Updating to version ' + version_id + ' ...')
 117
 118     version_labels = {
 119         'zip_3': '',
 120         'zip_2': '',
 121         'exe_64': '.exe',
 122         'exe_32': '_x86.exe',
 123     }
 124
 125     def get_bin_info(bin_or_exe, version):
 126         label = version_labels['%s_%s' % (bin_or_exe, version)]
 127         return next((i for i in version_info['assets'] if i['name'] == 'yt-dlp%s' % label), {})
 128
 129     def get_sha256sum(bin_or_exe, version):
 130         label = version_labels['%s_%s' % (bin_or_exe, version)]
 131         urlh = next(
 132             (i for i in version_info['assets'] if i['name'] in ('SHA2-256SUMS')),
 133             {}).get('browser_download_url')
 134         if not urlh:
 135             return None
 136         hash_data = ydl._opener.open(urlh).read().decode('utf-8')
 137         hashes = list(map(lambda x: x.split(':'), hash_data.splitlines()))
 138         return next((i[1] for i in hashes if i[0] == 'yt-dlp%s' % label), None)
 139
 140     if not os.access(filename, os.W_OK):
 141         return report_error('no write permissions on %s' % filename, expected=True)
 142
 143     # PyInstaller
 144     if hasattr(sys, 'frozen'):
 145         exe = filename
 146         directory = os.path.dirname(exe)
 147         if not os.access(directory, os.W_OK):
 148             return report_error('no write permissions on %s' % directory, expected=True)
 149         try:
 150             if os.path.exists(filename + '.old'):
 151                 os.remove(filename + '.old')
 152         except (IOError, OSError):
 153             return report_error('unable to remove the old version')
 154
 155         try:
 156             arch = platform.architecture()[0][:2]
 157             url = get_bin_info('exe', arch).get('browser_download_url')
 158             if not url:
 159                 return report_error('unable to fetch updates', True)
 160             urlh = ydl._opener.open(url)
 161             newcontent = urlh.read()
 162             urlh.close()
 163         except (IOError, OSError, StopIteration):
 164             return report_error('unable to download latest version', True)
 165
 166         try:
 167             with open(exe + '.new', 'wb') as outf:
 168                 outf.write(newcontent)
 169         except (IOError, OSError):
 170             return report_error('unable to write the new version')
 171
 172         expected_sum = get_sha256sum('exe', arch)
 173         if not expected_sum:
 174             ydl.report_warning('no hash information found for the release')
 175         elif calc_sha256sum(exe + '.new') != expected_sum:
 176             report_error('unable to verify the new executable', True)
 177             try:
 178                 os.remove(exe + '.new')
 179             except OSError:
 180                 return report_error('unable to remove corrupt download')
 181
 182         try:
 183             os.rename(exe, exe + '.old')
 184         except (IOError, OSError):
 185             return report_error('unable to move current version')
 186         try:
 187             os.rename(exe + '.new', exe)
 188         except (IOError, OSError):
 189             report_error('unable to overwrite current version')
 190             os.rename(exe + '.old', exe)
 191             return
 192         try:
 193             # Continues to run in the background
 194             subprocess.Popen(
 195                 'ping 127.0.0.1 -n 5 -w 1000 & del /F "%s.old"' % exe,
 196                 shell=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
 197             ydl.to_screen('Updated yt-dlp to version %s' % version_id)
 198             return True  # Exit app
 199         except OSError:
 200             report_error('unable to delete old version')
 201
 202     # Zip unix package
 203     elif isinstance(globals().get('__loader__'), zipimporter):
 204         try:
 205             py_ver = platform.python_version()[0]
 206             url = get_bin_info('zip', py_ver).get('browser_download_url')
 207             if not url:
 208                 return report_error('unable to fetch updates', True)
 209             urlh = ydl._opener.open(url)
 210             newcontent = urlh.read()
 211             urlh.close()
 212         except (IOError, OSError, StopIteration):
 213             return report_error('unable to download latest version', True)
 214
 215         expected_sum = get_sha256sum('zip', py_ver)
 216         if expected_sum and hashlib.sha256(newcontent).hexdigest() != expected_sum:
 217             return report_error('unable to verify the new zip', True)
 218
 219         try:
 220             with open(filename, 'wb') as outf:
 221                 outf.write(newcontent)
 222         except (IOError, OSError):
 223             return report_error('unable to overwrite current version')
 224
 225     ydl.to_screen('Updated yt-dlp to version %s; Restart yt-dlp to use the new version' % version_id)
 226
 227
 228 '''  # UNUSED
 229 def get_notes(versions, fromVersion):
 230     notes = []
 231     for v, vdata in sorted(versions.items()):
 232         if v > fromVersion:
 233             notes.extend(vdata.get('notes', []))
 234     return notes
 235
 236
 237 def print_notes(to_screen, versions, fromVersion=__version__):
 238     notes = get_notes(versions, fromVersion)
 239     if notes:
 240         to_screen('PLEASE NOTE:')
 241         for note in notes:
 242             to_screen(note)
 243 '''