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#!/usr/bin/env python3
# Copyright (c) 2008-2024 OARC, Inc.
# Copyright (c) 2007-2008, Internet Systems Consortium, Inc.
# Copyright (c) 2003-2007, The Measurement Factory, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
import sys
import os
import io
import re
import argparse
from encodings import idna
parser = argparse.ArgumentParser(description='Convert Public Suffix List (PSL) to DSC TLD List (stdout)', epilog='See `man dsc-psl-convert` for more information')
parser.add_argument('fn', metavar='PSL', type=str, nargs='?',
help='specify the PSL to use or use system publicsuffix if exists, "-" will read from stdin')
parser.add_argument('--all', action='store_true',
help='include all of PSL, as default it will stop after ICANN domains')
parser.add_argument('--no-skip-idna-err', action='store_true',
help='fail if idna.ToASCII() fails, default is to ignore these errors')
args = parser.parse_args()
def dn2ascii(dn):
labels = []
for l in dn.split('.'):
# print(l)
if args.no_skip_idna_err:
labels.append(idna.ToASCII(l).decode('utf-8'))
else:
try:
labels.append(idna.ToASCII(l).decode('utf-8'))
except Exception as e:
return None
return '.'.join(labels)
if not args.fn:
for e in ['/usr/share/publicsuffix', '/usr/local/share/publicsuffix']:
e += '/public_suffix_list.dat'
if os.path.isfile(e):
args.fn = e
break
if not args.fn:
parser.error('No installed PSL file found, please specify one')
f = None
try:
if args.fn == "-":
f = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8')
else:
f = open(args.fn, 'r', encoding='utf-8')
except Exception as e:
parser.exit(1, "Unable to open %r: %s\n" % (args.fn, e))
r = re.compile('^([^\!\s(?://)]+\.[^\s(?://)]+)')
for l in f:
if not args.all and '===END ICANN DOMAINS===' in l:
break
l = l.replace('*.', '')
m = r.search(l)
if m:
dn = dn2ascii(m.group(1))
if dn is None:
continue
print(dn)
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