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URL and basic attribute status of TP

Source: Internet
Author: User
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In the previous essay we already know the TP framework of four ways to access, then when the address bar to enter the non-existent operation method, the controller will be what?

First look at the definition:

Null operation: An object (Controller) Call method that does not exist by itself

NULL controller: The specified class was not found when instantiating the Controller object

First, create a new Ceshi module under the application file and follow the home module under the Ceshi module to create the same folder, such as:

1) Create a new login controller under the Controller folder:

12345678910 <?phpnamespaceCeshi\Controller;useThink\Controller;class LoginController extendsController{   publicfunctionlogin()   {    echo"欢迎登陆！";   }}

2) Address bar input access address: Http://localhost/wamp/thinkphp/index.php/Ceshi/Login/login

First, the address bar to access the non-existent method, what happens?

Http://localhost/wamp/thinkphp/index.php/Ceshi/Login/loginSSS

From this page, we can know:

(1) This interface exposes the code we use to write the tool and exposes the thinkphp version number, which can be exploited if the hacker finds a bug in the version number.

(2) Second, this interface is very unfriendly, for users, they do not understand and do not know what is wrong.

How to give a more secure, more friendly hint?

There is a method in the parent class that we can do with this:

The first method: Make an empty template

1) Create a Ceshi folder under the View folder with the following path:

Loginsss.html

12345678910111213 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">"http://www.w3.org/1999/xhtml"><meta http-equiv="Content-Type"content="text/html; charset=utf-8"/><title>无标题文档</title><style type="text/css">*{ margin:0px auto; padding:0px}</style><body><div>您访问的操作方法有误！</div></body>

2) Visit Http://localhost/wamp/thinkphp/index.php/Ceshi/Login/loginsss again

This is much more friendly than just the code, but it is not possible to make a template every time we enter a non-existent method, which is impractical, and we don't know what the user will be typing next, so this method is not feasible.

The second method: Do an empty method: _empty () method

12345678910111213 <?phpnamespaceCeshi\Controller;useThink\Controller;classLoginController extendsController{   publicfunctionlogin()   {    echo"欢迎登陆！";   }   publicfunction_empty(){    echo"您访问的操作方法不存在！";   }}

　　

This way, no matter what kind of empty method you access, you will see "The action method you accessed does not exist!" ”

http://localhost/wamp/thinkphp/index.php/Ceshi/Login/Logins

Http://localhost/wamp/thinkphp/index.php/Ceshi/Login/aaa

Second, in the address bar to access the non-existent controller, what happens? The same error occurred

Workaround:

Create a new empty controller:

EmptyController.class.php

123456789 <?php namespace  ceshi\controller; use  think\controller; class  emptycontroller  extends  controller { &NBSP;&NBSP;&NBSP;&NBSP; public   function  _empty () { &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP; echo   "the controller you are accessing is wrong" &NBSP;&NBSP;&NBSP;&NBSP; } }

Re-visit http://localhost/wamp/thinkphp/index.php/Ceshi/Main/login

Change a http://localhost/wamp/thinkphp/index.php/Ceshi/mmmn/login

This will solve the problem of NULL controller and empty operation ~.~.~

URL and basic attribute status of TP

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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