Add ISC 'host' support (#450)

* Add ISC 'host' support

Add ISC 'host' command support

* Update host.py

remove leading tab from string

* Add integer conversion

Per request, fix integer conversion

* Cleanup

Cleanup strip()'s

* Add tests

Add two tests for the 'host' parser

* Update test_host.py

nit

---------

Co-authored-by: Kelly Brazil <kellyjonbrazil@gmail.com>

tests/fixtures/generic/host-google.json

@@ -0,0 +1 @@
+[{"hostname":"google.com","address":["142.250.179.206"],"v6-address":["2a00:1450:400e:811::200e"],"mail":["smtp.google.com."]}]

tests/fixtures/generic/host-google.out

@@ -0,0 +1,3 @@
+google.com has address 142.250.179.206
+google.com has IPv6 address 2a00:1450:400e:811::200e
+google.com mail is handled by 10 smtp.google.com.

tests/fixtures/generic/host-sunet.json

@@ -0,0 +1 @@
+[{"nameserver":"192.36.125.2","zone":"sunet.se","mname":"hidden-master.sunet.se.","rname":"hostmaster.sunet.se.","serial":2023091102,"refresh":28800,"retry":7200,"expire":604800,"minimum":300},{"nameserver":"193.10.252.19","zone":"sunet.se","mname":"hidden-master.sunet.se.","rname":"hostmaster.sunet.se.","serial":2023091102,"refresh":28800,"retry":7200,"expire":604800,"minimum":300},{"nameserver":"2001:6b0:1::250","zone":"sunet.se","mname":"hidden-master.sunet.se.","rname":"hostmaster.sunet.se.","serial":2023091102,"refresh":28800,"retry":7200,"expire":604800,"minimum":300},{"nameserver":"2001:948:4:2::19","zone":"sunet.se","mname":"hidden-master.sunet.se.","rname":"hostmaster.sunet.se.","serial":2023091102,"refresh":28800,"retry":7200,"expire":604800,"minimum":300},{"nameserver":"2001:6b0:5a:4020::384","zone":"sunet.se","mname":"hidden-master.sunet.se.","rname":"hostmaster.sunet.se.","serial":2023091102,"refresh":28800,"retry":7200,"expire":604800,"minimum":300},{"nameserver":"130.237.72.250","zone":"sunet.se","mname":"hidden-master.sunet.se.","rname":"hostmaster.sunet.se.","serial":2023091102,"refresh":28800,"retry":7200,"expire":604800,"minimum":300},{"nameserver":"2001:6b0:7::2","zone":"sunet.se","mname":"hidden-master.sunet.se.","rname":"hostmaster.sunet.se.","serial":2023091102,"refresh":28800,"retry":7200,"expire":604800,"minimum":300},{"nameserver":"89.47.185.240","zone":"sunet.se","mname":"hidden-master.sunet.se.","rname":"hostmaster.sunet.se.","serial":2023091102,"refresh":28800,"retry":7200,"expire":604800,"minimum":300}]

tests/fixtures/generic/host-sunet.out

@@ -0,0 +1,16 @@
+Nameserver 192.36.125.2:
+	sunet.se has SOA record hidden-master.sunet.se. hostmaster.sunet.se. 2023091102 28800 7200 604800 300
+Nameserver 193.10.252.19:
+	sunet.se has SOA record hidden-master.sunet.se. hostmaster.sunet.se. 2023091102 28800 7200 604800 300
+Nameserver 2001:6b0:1::250:
+	sunet.se has SOA record hidden-master.sunet.se. hostmaster.sunet.se. 2023091102 28800 7200 604800 300
+Nameserver 2001:948:4:2::19:
+	sunet.se has SOA record hidden-master.sunet.se. hostmaster.sunet.se. 2023091102 28800 7200 604800 300
+Nameserver 2001:6b0:5a:4020::384:
+	sunet.se has SOA record hidden-master.sunet.se. hostmaster.sunet.se. 2023091102 28800 7200 604800 300
+Nameserver 130.237.72.250:
+	sunet.se has SOA record hidden-master.sunet.se. hostmaster.sunet.se. 2023091102 28800 7200 604800 300
+Nameserver 2001:6b0:7::2:
+	sunet.se has SOA record hidden-master.sunet.se. hostmaster.sunet.se. 2023091102 28800 7200 604800 300
+Nameserver 89.47.185.240:
+	sunet.se has SOA record hidden-master.sunet.se. hostmaster.sunet.se. 2023091102 28800 7200 604800 300

tests/test_host.py

@@ -0,0 +1,58 @@
+import os
+import unittest
+import json
+from typing import Dict
+from jc.parsers.host import parse
+
+THIS_DIR = os.path.dirname(os.path.abspath(__file__))
+
+
+class MyTests(unittest.TestCase):
+    f_in: Dict = {}
+    f_json: Dict = {}
+
+    @classmethod
+    def setUpClass(cls):
+        fixtures = {
+            'google': (
+                'fixtures/generic/host-google.out',
+                'fixtures/generic/host-google.json'),
+            'sunet': (
+                'fixtures/generic/host-sunet.out',
+                'fixtures/generic/host-sunet.json')
+        }
+
+        for file, filepaths in fixtures.items():
+            with open(os.path.join(THIS_DIR, filepaths[0]), 'r', encoding='utf-8') as a, \
+                 open(os.path.join(THIS_DIR, filepaths[1]), 'r', encoding='utf-8') as b:
+                cls.f_in[file] = a.read()
+                cls.f_json[file] = json.loads(b.read())
+
+#    host cannot run without input (will only display help)
+#    def test_host_nodata(self):
+#        """
+#        Test 'host' with no data
+#        """
+#        self.assertEqual(parse('', quiet=True), {})
+
+
+    def test_host_google(self):
+        """
+        Test 'host google'
+        """
+        self.assertEqual(
+            parse(self.f_in['google'], quiet=True),
+            self.f_json['google']
+        )
+
+    def test_host_sunet(self):
+        """
+        Test 'host sunet'
+        """
+        self.assertEqual(
+            parse(self.f_in['sunet'], quiet=True),
+            self.f_json['sunet']
+        )
+
+if __name__ == '__main__':
+    unittest.main()