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bpo-42627: Fix incorrect parsing of Windows registry proxy settings (GH-26307) 

(cherry picked from commit b69297ea23)

Co-authored-by: 狂男风 <CrazyBoyFeng@Live.com>
This commit is contained in:
Miss Islington (bot) 2022-05-11 11:41:53 -07:00 committed by GitHub
parent a2c8180a9a
commit 5a33643dce
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 21 additions and 16 deletions
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26
Lib/urllib/request.py
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@ -2679,22 +2679,26 @@ elif os.name == 'nt':
# Returned as Unicode but problems if not converted to ASCII
proxyServer = str(winreg.QueryValueEx(internetSettings,
'ProxyServer')[0])
if '=' in proxyServer:
# Per-protocol settings
if '=' not in proxyServer and ';' not in proxyServer:
# Use one setting for all protocols.
proxyServer = 'http={0};https={0};ftp={0}'.format(proxyServer)
for p in proxyServer.split(';'):
protocol, address = p.split('=', 1)
# See if address has a type:// prefix
if not re.match('(?:[^/:]+)://', address):
address = '%s://%s' % (protocol, address)
# Add type:// prefix to address without specifying type
if protocol in ('http', 'https', 'ftp'):
# The default proxy type of Windows is HTTP
address = 'http://' + address
elif protocol == 'socks':
address = 'socks://' + address
proxies[protocol] = address
else:
# Use one setting for all protocols
if proxyServer[:5] == 'http:':
proxies['http'] = proxyServer
else:
proxies['http'] = 'http://%s' % proxyServer
proxies['https'] = 'https://%s' % proxyServer
proxies['ftp'] = 'ftp://%s' % proxyServer
# Use SOCKS proxy for HTTP(S) protocols
if proxies.get('socks'):
# The default SOCKS proxy type of Windows is SOCKS4
address = re.sub(r'^socks://', 'socks4://', proxies['socks'])
proxies['http'] = proxies.get('http') or address
proxies['https'] = proxies.get('https') or address
internetSettings.Close()
except (OSError, ValueError, TypeError):
# Either registry key not found etc, or the value in an

1
Misc/NEWS.d/next/Library/2021-05-22-07-58-59.bpo-42627.EejtD0.rst Normal file
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@ -0,0 +1 @@
Fix incorrect parsing of Windows registry proxy settings