khanat-opennel-code/code/web/public_php/ams/func/delete_plugin.php

<?php
/**
 * This function is used in deleting plugins.
 * It removes the plugin from the codebase as well as
 * from the Database. When user request to delete a plugin
 * id of that plugin is sent in $_GET global variable. 
 * 
 * @author Shubham Meena, mentored by Matthew Lagoe 
 */
function delete_plugin() {
    
    // if logged in
    if ( WebUsers :: isLoggedIn() ) {
        
        if ( isset( $_GET['id'] ) )
             {
            // id of plugin to delete after filtering
            $id = filter_var( $_GET['id'], FILTER_SANITIZE_FULL_SPECIAL_CHARS );
            
             $db = new DBLayer( 'lib' );
             $sth = $db -> selectWithParameter( "FileName", "plugins", array( 'id' => $id ), "Id=:id" );
             $name = $sth -> fetch();
            
             if ( is_dir( "$name[FileName]" ) )
                 {
                // removing plugin directory from the code base
                if ( Plugincache::rrmdir( "$name[FileName]" ) )
                     {
                    $db -> delete( 'plugins', array( 'id' => $id ), "Id=:id" );
                    
                    //if result	successfull redirect and show success message
                     header( "Location: index.php?page=plugins&result=2" );
                     exit;
                    
                     } 
                else
                     {
					// if result unsuccessfull redirect and show error message 
                    header( "Location: index.php?page=plugins&result=0" );
                     exit;
                     } 
                } 
            } 
        else
             {
			// if result unsuccessfull redirect and show error message 	 
            header( "Location: index.php?page=plugins&result=0" );
             exit;
             } 
        } 
    }