From 5441c15a1e8f593528ef378c0ea88572e115a96b Mon Sep 17 00:00:00 2001
From: Chris Caron <lead2gold@gmail.com>
Date: Wed, 20 Nov 2024 16:26:45 -0500
Subject: [PATCH] Improved hostname verification (#1243)

---
 apprise/utils.py           |  2 +-
 test/test_apprise_utils.py | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/apprise/utils.py b/apprise/utils.py
index a45c6bbd..c536405e 100644
--- a/apprise/utils.py
+++ b/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
diff --git a/test/test_apprise_utils.py b/test/test_apprise_utils.py
index 17cd1b15..0e1f4e31 100644
--- a/test/test_apprise_utils.py
+++ b/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'