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#88 Implement SHA256 checking for autoupdater

Browse source 
* Also fix bugs from e5813e53f0

Authored-by: shirtjs <2660574+shirtjs@users.noreply.github.com>

:ci skip dl
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shirt-dev 2021-02-15 16:06:42 -05:00 committed by GitHub
parent 47930b73a5
commit 44f705d001
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 70 additions and 18 deletions
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2
pyinst.py
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@ -72,7 +72,7 @@ PyInstaller.__main__.run([
'--exclude-module=test',
'--exclude-module=ytdlp_plugins',
'--hidden-import=mutagen',
'--hidden-import=pycryptodome',
'--hidden-import=Crypto',
'youtube_dlc/__main__.py',
])
SetVersion('dist/youtube-dlc%s.exe' % _x86, VERSION_FILE)

86
youtube_dlc/update.py
View file

@ -40,16 +40,16 @@ def update_self(to_screen, verbose, opener):
JSON_URL = 'https://api.github.com/repos/pukkandan/yt-dlp/releases/latest'
def sha256sum():
def calc_sha256sum(path):
h = hashlib.sha256()
b = bytearray(128 * 1024)
mv = memoryview(b)
with open(os.path.realpath(sys.executable), 'rb', buffering=0) as f:
with open(os.path.realpath(path), 'rb', buffering=0) as f:
for n in iter(lambda: f.readinto(mv), 0):
h.update(mv[:n])
return h.hexdigest()
to_screen('Current Build Hash %s' % sha256sum())
to_screen('Current Build Hash %s' % calc_sha256sum(sys.executable))
if not isinstance(globals().get('__loader__'), zipimporter) and not hasattr(sys, 'frozen'):
to_screen('It looks like you installed yt-dlp with a package manager, pip, setup.py or a tarball. Please use that to update.')
@ -76,18 +76,32 @@ def update_self(to_screen, verbose, opener):
to_screen('Updating to version ' + version_id + ' ...')
version_labels = {
'zip_3': '',
'zip_2': '',
# 'zip_2': '_py2',
'exe_64': '.exe',
'exe_32': '_x86.exe',
}
def get_bin_info(bin_or_exe, version):
labels = {
'zip_3': '',
'zip_2': '',
# 'zip_2': '_py2',
'exe_64': '.exe',
'exe_32': '_x86.exe',
}
label = labels['%s_%s' % (bin_or_exe, version)]
label = version_labels['%s_%s' % (bin_or_exe, version)]
return next(
i for i in version_info['assets']
if i['name'] in ('yt-dlp%s' % label, 'youtube-dlc%s' % label))
(i for i in version_info['assets']
if i['name'] in ('yt-dlp%s' % label, 'youtube-dlc%s' % label)), {})
def get_sha256sum(bin_or_exe, version):
label = version_labels['%s_%s' % (bin_or_exe, version)]
urlh = next(
(i for i in version_info['assets']
if i['name'] in ('SHA2-256SUMS')), {}).get('browser_download_url')
if not urlh:
return None
hash_data = opener.open(urlh).read().decode('utf-8')
hashes = list(map(lambda x: x.split(':'), hash_data.splitlines()))
return next(
(i[1] for i in hashes
if i[0] in ('yt-dlp%s' % label, 'youtube-dlc%s' % label)), None)
# sys.executable is set to the full pathname of the exe-file for py2exe
# though symlinks are not followed so that we need to do this manually
@ -108,7 +122,12 @@ def update_self(to_screen, verbose, opener):
try:
arch = platform.architecture()[0][:2]
urlh = opener.open(get_bin_info('exe', arch)['browser_download_url'])
url = get_bin_info('exe', arch).get('browser_download_url')
if not url:
to_screen('ERROR: unable to fetch updates')
to_screen('Visit https://github.com/pukkandan/yt-dlp/releases/latest')
return
urlh = opener.open(url)
newcontent = urlh.read()
urlh.close()
except (IOError, OSError, StopIteration):
@ -127,6 +146,18 @@ def update_self(to_screen, verbose, opener):
to_screen('ERROR: unable to write the new version')
return
expected_sum = get_sha256sum('exe', arch)
if not expected_sum:
to_screen('WARNING: no hash information found for the release')
elif calc_sha256sum(exe + '.new') != expected_sum:
to_screen('ERROR: unable to verify the new executable')
to_screen('Visit https://github.com/pukkandan/yt-dlp/releases/latest')
try:
os.remove(exe + '.new')
except OSError:
to_screen('ERROR: unable to remove corrupt download')
return
try:
bat = os.path.join(directory, 'yt-dlp-updater.cmd')
with io.open(bat, 'w') as batfile:
@ -141,7 +172,7 @@ def update_self(to_screen, verbose, opener):
''' % (exe, exe, version_id))
subprocess.Popen([bat]) # Continues to run in the background
return # Do not show premature success messages
return True # Exit app
except (IOError, OSError):
if verbose:
to_screen(encode_compat_str(traceback.format_exc()))
@ -152,7 +183,12 @@ def update_self(to_screen, verbose, opener):
elif isinstance(globals().get('__loader__'), zipimporter):
try:
py_ver = platform.python_version()[0]
urlh = opener.open(get_bin_info('zip', py_ver)['browser_download_url'])
url = get_bin_info('zip', py_ver).get('browser_download_url')
if not url:
to_screen('ERROR: unable to fetch updates')
to_screen('Visit https://github.com/pukkandan/yt-dlp/releases/latest')
return
urlh = opener.open(url)
newcontent = urlh.read()
urlh.close()
except (IOError, OSError, StopIteration):
@ -163,11 +199,27 @@ def update_self(to_screen, verbose, opener):
return
try:
with open(filename, 'wb') as outf:
with open(filename + '.new', 'wb') as outf:
outf.write(newcontent)
except (IOError, OSError):
if verbose:
to_screen(encode_compat_str(traceback.format_exc()))
to_screen('ERROR: unable to write the new version')
return
expected_sum = get_sha256sum('zip', py_ver)
if expected_sum and calc_sha256sum(filename + '.new') != expected_sum:
to_screen('ERROR: unable to verify the new zip')
to_screen('Visit https://github.com/pukkandan/yt-dlp/releases/latest')
try:
os.remove(filename + '.new')
except OSError:
to_screen('ERROR: unable to remove corrupt zip')
return
try:
os.rename(filename + '.new', filename)
except OSError:
to_screen('ERROR: unable to overwrite current version')
return