Improved hostname verification (#1243)

apprise/utils.py

@@ -325,7 +325,7 @@ def is_hostname(hostname, ipv4=True, ipv6=True, underscore=True):
     labels = hostname.split(".")
 
     # ipv4 check
-    if len(labels) == 4 and re.match(r'[0-9.]+', hostname):
+    if len(labels) == 4 and re.match(r'^[0-9.]+$', hostname):
         return is_ipaddr(hostname, ipv4=ipv4, ipv6=False)
 
     # - RFC 1123 permits hostname labels to start with digits

test/test_apprise_utils.py

@@ -87,6 +87,22 @@ def test_parse_url_general():
     assert result['qsd+'] == {}
     assert result['qsd:'] == {}
 
+    # GitHub Ticket 1234 - Unparseable Hostname
+    result = utils.parse_url('http://5t4m59hl-34343.euw.devtunnels.ms')
+    assert result['schema'] == 'http'
+    assert result['host'] == '5t4m59hl-34343.euw.devtunnels.ms'
+    assert result['port'] is None
+    assert result['user'] is None
+    assert result['password'] is None
+    assert result['fullpath'] is None
+    assert result['path'] is None
+    assert result['query'] is None
+    assert result['url'] == 'http://5t4m59hl-34343.euw.devtunnels.ms'
+    assert result['qsd'] == {}
+    assert result['qsd-'] == {}
+    assert result['qsd+'] == {}
+    assert result['qsd:'] == {}
+
     result = utils.parse_url('http://hostname/')
     assert result['schema'] == 'http'
     assert result['host'] == 'hostname'