feat: Cloud 支持局域网 IP 扫描 (#8589)

* feat: Cloud 支持局域网 IP 扫描

* feat: Cloud 支持局域网 IP 扫描

Co-authored-by: Jiangjie.Bai <bugatti_it@163.com>

apps/common/utils/common.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 #
 import re
+import socket
 from django.templatetags.static import static
 from collections import OrderedDict
 from itertools import chain
@@ -368,8 +369,23 @@ def group_by_count(it, count):
     return [it[i:i+count] for i in range(0, len(it), count)]
 
 
+def test_ip_connectivity(host, port, timeout=3):
+    """
+    timeout: seconds
+    """
+    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    sock.settimeout(timeout)
+    result = sock.connect_ex((host, int(port)))
+    sock.close()
+    if result == 0:
+        connectivity = True
+    else:
+        connectivity = False
+    return connectivity
+
+
 def static_or_direct(logo_path):
     if logo_path.startswith('img/'):
         return static(logo_path)
     else:
-        return logo_path
+        return logo_path