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How to use is_valid_domain_name method in localstack

Best Python code snippet using localstack_python

test_validators.py

Source:test_validators.py

...23    def test_is_valid_domainname_should_return_true_with_valid_domain(self):24        """25        Tests that is_valid_domain_name returns True for a valid domain.26        """27        self.assertTrue(is_valid_domain_name(self.valid_domain))28    def test_is_valid_domainname_should_return_false_with_invalid_domain(self):29        """30        Tests that is_valid_domain_name returns True for a valid domain.31        """32        self.assertFalse(is_valid_domain_name(self.invalid_domain))33class DomainNameValidatorTestCase(BaseTestCase):34    def setUp(self):35        self.valid_domains = [36            'here.com', 'here.and.there.com', '[127.0.0.1]',37            'valid-----hyphens.com', 'valid-with-hyphens.com',38            'domain.with.idn.tld.à¤à¤¦à¤¾à¤¹à¤°à¤£.à¤ªà¤°à¥à¤à¥à¤·à¤¾', 'localhost'39        ]40        self.invalid_domains = [41            None, '', 'abc', '.com', '127.0.0.1', 'invalid-.com',42            '-invalid.com', 'inv-.alid-.com', 'inv-.-alid.com',43            'example.com\n\n<script src="x.js">', 'shouldfail.com.'44        ]45        self.validator = DomainNameValidator()46    def test_valid_domains_should_return_none(self):...

__main__.py

Source:__main__.py

1import argparse2DOMAIN_FORBID_CHARS = set("\"'\0\n\r\t ")3def is_valid_domain_name(domain):4    # This is a very crude check to filter out forbidden chars in the5    # domain name. A few chars must be filtered out to prevent syntax6    # errors in the unbound configuration. The current approach is7    # however not fool-proof..8    #9    # A regular expression would be the better option, but I couldn't quickly10    # find a regular expression that works for all domains in the StevenBlack11    # hosts file.12    return not any((c in DOMAIN_FORBID_CHARS) for c in domain)13def parse_line(line):14    # Ignore empty and commented lines.15    line = line.strip()16    if (not line) or line[0] == "#":17        return None18    # Strip comments after content.19    line = line.split("#", 1)[0].strip()20    parts = line.split(" ")21    host = parts[1 if len(parts) > 1 else 0].strip()22    if host == "0.0.0.0" or not is_valid_domain_name(host):23        return None24    return host25def parse(filename):26    with open(filename) as f:27        for line in f:28            host = parse_line(line)29            if host is not None:30                yield host31def format_block_rule(host):32    return 'local-zone: "{0}" static'.format(host)33def expand_host(host):34    parts = host.split(".")35    for i in range(2, len(parts)):36        yield ".".join(parts[-i:])...

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