1. Requirements
2. Usage
3. Resources

Overview ¶

With this extension you can protect any page on your site from the frequent requests from the same IP in a short time. For example, bots can often send requests to your site, in the login form, registration form or send spam and so on.

Using this extension, you can set the time between requests and set time of limit access from IP. Limited ip will redirected to the error page.

Requirements ¶

Yii 1.1 or above

Usage ¶

It is easy to use.

• Extract and copy the files in protected/components/

• create table in your database like this: ~~~ [MySQL] CREATE TABLE IF NOT EXISTS users_ip ( id int(11) NOT NULL AUTO_INCREMENT, user_ip varchar(50) NOT NULL, time bigint(20) NOT NULL, status varchar(20) NOT NULL, PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; ~~~

• import the extension directory in your config file main.php

'import'=>array(
		'application.models.*',
		'application.components.*',
        'application.controllers.*',
        'application.components.request_limits.*'
	),

Installation is ready. Now to use the extension, just write the following code:

$checkIp=new FloodChecker(); // creating an instance of the  FloodChecker class
$checkIp->checkFloodFromIp(); // calling a function that is will do all work

That's all. This code you can paste any place in views and controllers. The user or bot IPs who was limited will be redirected to an error page. You can change error view in request_limits/views/index.php

The default time between 2 requests from the same IP equals 2000 milliseconds. The default time of limit access for IP equals 900000 milliseconds (15 minutes). You can set your values:

$checkIp=new FloodChecker();
$checkIp->setSafeTime(1000); // time between 2 requests
$checkIp->setLimitTime(600000); // time of limit access for IP
$checkIp->checkFloodFromIp(); 

The function checkFloodFromIp() return true if IP is not limited and false if IP is limited. So you can use this function in the operators. like this:

$checkIp=new FloodChecker();
if($checkIp->checkFloodFromIp()){
   //to do something
}

Resources ¶

Source Github