Allow specifying bind interface and listening port in config file

src/wgfrontend/config.py

@@ -54,6 +54,12 @@ class Configuration():
         # on_change_command =
         # Example: on_change_command = "sudo /etc/init.d/wgfrontend_interface restart"
 
+        # The interface to bind to for the web server
+        # socket_host = 0.0.0.0
+
+        # The port to bind to for the web server
+        # socket_port = 8080
+        
         # The system user to be used for the frontend
         user = {user}
         
@@ -111,6 +117,16 @@ class Configuration():
         """The command to be executed on config changes"""
         return self.config.get('on_change_command')
 
+    @property
+    def socket_host(self):
+        """The interface to bind to"""
+        return self.config.get('socket_host', '0.0.0.0')
+
+    @property
+    def socket_port(self):
+        """The port to bind to"""
+        return int(self.config.get('socket_port', 8080))
+
     @property
     def user(self):
         """The configured name for the wgfrontend system user"""

src/wgfrontend/webapp.py

@@ -128,11 +128,12 @@ def run_webapp(cfg):
         }
     }
     if os.path.exists(cfg.sslcertfile) and os.path.exists(cfg.sslkeyfile):
+        # Use ssl/tls if certificate files are present
         cherrypy.server.ssl_module = 'builtin'
         cherrypy.server.ssl_certificate = cfg.sslcertfile
         cherrypy.server.ssl_private_key = cfg.sslkeyfile
-    cherrypy.config.update({'server.socket_host': '0.0.0.0',
+    cherrypy.config.update({'server.socket_host': cfg.socket_host,
-                            'server.socket_port': 8080,
+                            'server.socket_port': cfg.socket_port,
                            })
     cherrypy.tree.mount(app, config=app_conf)
     if setupenv.is_root():