优化getLocalIp方法

class/core/mw.py

@@ -650,16 +650,14 @@ def getLocalIp():
     try:
         ipaddress = readFile(filename)
         if not ipaddress or ipaddress == '127.0.0.1':
-            raise Exception("ip is empty!")
-        return ipaddress
-    except Exception as e:
             cmd = "curl -4 -sS --connect-timeout 5 -m 60 https://v6r.ipip.net/?format=text"
             ip = execShell(cmd)
             result = ip[0].strip()
             if result == '':
-            raise e
+                raise Exception("ipv4 is empty!")
             writeFile(filename, result)
             return result
+        return ipaddress
     except Exception as e:
         cmd = "curl -6 -sS --connect-timeout 5 -m 60 https://v6r.ipip.net/?format=text"
         ip = execShell(cmd)
@@ -668,6 +666,8 @@ def getLocalIp():
             return '127.0.0.1'
         writeFile(filename, result)
         return result
+    finally:
+        pass
     return '127.0.0.1'