139 lines
4.7 KiB
Diff
139 lines
4.7 KiB
Diff
From 4f459d670886a8f4a410fdbd1ec595477d45e4e2 Mon Sep 17 00:00:00 2001
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From: Alexander Graul <agraul@suse.com>
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Date: Tue, 18 Jan 2022 17:10:37 +0100
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Subject: [PATCH] Include aliases in the fqdns grains
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Add UT for "is_fqdn"
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Add "is_fqdn" check to the network utils
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Bugfix: include FQDNs aliases
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Deprecate UnitTest assertion in favour of built-in assert keyword
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Add UT for fqdns aliases
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Leverage cached interfaces, if any.
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Implement network.fqdns module function (bsc#1134860) (#172)
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* Duplicate fqdns logic in module.network
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* Move _get_interfaces to utils.network
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* Reuse network.fqdns in grains.core.fqdns
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* Return empty list when fqdns grains is disabled
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Co-authored-by: Eric Siebigteroth <eric.siebigteroth@suse.de>
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---
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salt/modules/network.py | 5 +++-
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salt/utils/network.py | 16 +++++++++++
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tests/pytests/unit/modules/test_network.py | 4 +--
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tests/unit/utils/test_network.py | 32 ++++++++++++++++++++++
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4 files changed, 54 insertions(+), 3 deletions(-)
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diff --git a/salt/modules/network.py b/salt/modules/network.py
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index 524b1b74fa..f959dbf97b 100644
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--- a/salt/modules/network.py
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+++ b/salt/modules/network.py
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@@ -2096,7 +2096,10 @@ def fqdns():
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# https://sourceware.org/bugzilla/show_bug.cgi?id=19329
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time.sleep(random.randint(5, 25) / 1000)
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try:
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- return [socket.getfqdn(socket.gethostbyaddr(ip)[0])]
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+ name, aliaslist, addresslist = socket.gethostbyaddr(ip)
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+ return [socket.getfqdn(name)] + [
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+ als for als in aliaslist if salt.utils.network.is_fqdn(als)
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+ ]
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except socket.herror as err:
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if err.errno in (0, HOST_NOT_FOUND, NO_DATA):
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# No FQDN for this IP address, so we don't need to know this all the time.
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diff --git a/salt/utils/network.py b/salt/utils/network.py
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index 2bea2cf129..6ec993a678 100644
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--- a/salt/utils/network.py
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+++ b/salt/utils/network.py
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@@ -2372,3 +2372,19 @@ def ip_bracket(addr, strip=False):
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addr = addr.rstrip("]")
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addr = ipaddress.ip_address(addr)
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return ("[{}]" if addr.version == 6 and not strip else "{}").format(addr)
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+
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+
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+def is_fqdn(hostname):
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+ """
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+ Verify if hostname conforms to be a FQDN.
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+
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+ :param hostname: text string with the name of the host
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+ :return: bool, True if hostname is correct FQDN, False otherwise
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+ """
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+
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+ compliant = re.compile(r"(?!-)[A-Z\d\-\_]{1,63}(?<!-)$", re.IGNORECASE)
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+ return (
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+ "." in hostname
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+ and len(hostname) < 0xFF
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+ and all(compliant.match(x) for x in hostname.rstrip(".").split("."))
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+ )
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diff --git a/tests/pytests/unit/modules/test_network.py b/tests/pytests/unit/modules/test_network.py
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index 81035434b6..3f31391f44 100644
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--- a/tests/pytests/unit/modules/test_network.py
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+++ b/tests/pytests/unit/modules/test_network.py
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@@ -29,7 +29,7 @@ def fake_fqdn():
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with patch("socket.getfqdn", autospec=True, return_value=fqdn), patch(
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"socket.gethostbyaddr",
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autospec=True,
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- return_value=("fnord", "fnord fnord"),
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+ return_value=("fnord", ["fnord fnord"], []),
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):
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yield fqdn
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@@ -89,7 +89,7 @@ def test_fqdns_should_return_sorted_unique_domains(fake_ips):
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with patch("socket.getfqdn", autospec=True, side_effect=fake_domains), patch(
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"socket.gethostbyaddr",
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autospec=True,
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- return_value=("fnord", "fnord fnord"),
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+ return_value=("fnord", ["fnord fnord"], []),
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):
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actual_fqdns = networkmod.fqdns()
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assert actual_fqdns == {
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diff --git a/tests/unit/utils/test_network.py b/tests/unit/utils/test_network.py
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index f7d3972930..cdb1ca19ca 100644
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--- a/tests/unit/utils/test_network.py
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+++ b/tests/unit/utils/test_network.py
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@@ -1311,3 +1311,35 @@ class NetworkTestCase(TestCase):
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ip_addr_obj = ipaddress.ip_address(test_ipv4)
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self.assertEqual(test_ipv4, network.ip_bracket(ip_addr_obj))
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+
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+ def test_is_fqdn(self):
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+ """
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+ Test is_fqdn function passes possible FQDN names.
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+
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+ :return: None
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+ """
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+ for fqdn in [
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+ "host.domain.com",
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+ "something.with.the.dots.still.ok",
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+ "UPPERCASE.ALSO.SHOULD.WORK",
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+ "MiXeD.CaSe.AcCePtAbLe",
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+ "123.host.com",
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+ "host123.com",
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+ "some_underscore.com",
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+ "host-here.com",
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+ ]:
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+ assert network.is_fqdn(fqdn)
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+
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+ def test_is_not_fqdn(self):
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+ """
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+ Test is_fqdn function rejects FQDN names.
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+
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+ :return: None
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+ """
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+ for fqdn in [
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+ "hostname",
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+ "/some/path",
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+ "$variable.here",
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+ "verylonghostname.{}".format("domain" * 45),
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+ ]:
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+ assert not network.is_fqdn(fqdn)
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--
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2.39.2
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