/install/installer/assets/helper.destroyer.php

<?php if(!defined('INST_BASEDIR')) die('Direct access is not allowed!');



    /* ====================================================================

    *

    *                            PHP Setup Wizard

    *

    *                         -= SELF-DESTRUCTION =-

    *

    *  This file contains functions that are used to delete ALL the files

	*  inside the Installer folder. Be VERY careful with this script and

	*  only modify it if you are absolutly certain of what you are doing.

    *

    *  ================================================================= */



	/**

	 *  You got to admit, that's pretty funny for a function name :)

	 *  What it does is simply trying to delete all the installer files

	 *  including this one!

	 */ 

	function DeleteYourself()

	{

		/*

		*   >>> IMPORTANT! <<<< 

		*

		*   NOTE: This code only provides you with the ability to completly make the Installer

		*         remove itself from the webserver (if it can). HOWEVER - you can modify this 

		*         function to only delete SOME files or some spesific files rather than deleting

		*         everything.

		*

		*         Example: You have made a very descriptive "step-by-step" guide to how to get

		*                  this installer going. The file "installer.php" is only allowed to be

		*                  executed directly so this method could only delete that file. Then,

		*                  in your guide you could say "Delete the script file installer.php if

		*                  the Installer itself is unable to" - rather then saying delete the 

		*                  Installer folder, which contains 55+ files including images etc.

		*                  Just a suggestion :)

		*/



		global $config;



		// Read the base directory for files to delete and sort the array so that the longest 

		// scopes are deleted first - example: base/aaa.txt  base/folder/bbb.txt - then bbb.txt

		// will be the first because it has scope of 2, and aaa.txt has the scope 1

		$files = ReadFiles(INST_BASEDIR.INST_RUNFOLDER, $config['self_destruct_filter']);

		rsort($files);



		// Get all unique directories into one array and sort by scope as well

		$dirs = array();

		foreach($files as $file)

		{

			if(!isset($dirs[$file['dir']]))

				$dirs[$file['dir']] = $file['scope'];

		}		

		arsort($dirs);



		// Success rate is stored

		$fileDelete = array('success'=>0, 'failed'=>0, 'total'=>count($files));

		$dirDelete = array('success'=>0, 'failed'=>0, 'total'=>count($dirs));



		// Begin with deleting the files

		foreach($files as $file)

		{

			if(unlink($file['dir'].$file['name']))

				 $fileDelete['success']++;

			else $fileDelete['failed']++;

		}



		if($config['self_destruct_removes_folders'])

		{

			// And then delete the directories

			foreach($dirs as $dir=>$scope)

			{

				if(rmdir($dir))

					 $dirDelete['success']++;

				else $dirDelete['failed']++;

			}

		}

		else

		{

			// Total reset to zero, so no folder should be

			// deleted, no success and no failure!

			$dirDelete['total'] = 0;

		}



		// Return back the success of deletion

		return array('dirs'=>$dirDelete, 'files'=>$fileDelete);

	}





	/**

	 *  Read everything in a folder, and recursivly go through all

	 *  subfolders to scan for more files. Define the files to include

	 *  in the read

	 */

	function ReadFiles($dir, $filterExt=array())

	{

		$files = array();

		$checkFile = "";

		$extension = "";



		// Fix the separators in the path 

		$dir = FixPath($dir);

		if(is_dir($dir))

		{

			if($opendir = opendir($dir))

			{

				// Read everything in the folder, $checkFile can be both

				// folder, file and for some reason '.' and '..'

				while(($checkFile = readdir($opendir)))

				{

					// Construct a subfolder variable and if that is

					// valid directory - scan those files first

					$subFolder = FixPath($dir.DIRECTORY_SEPARATOR.$checkFile);



					// If this is a directory - scan that folder

					// first before reading the files in here

					$fromFolder = array();

					if(is_dir($subFolder) && $checkFile != '.' && $checkFile != '..')

						$fromFolder = ReadFiles($subFolder, $filterExt);



					// Put all "from folder" files into the $files array

					foreach($fromFolder as $folderFile)

						$files[] = $folderFile;



					// Get file extension

					if(strrpos($checkFile, '.') != false)

						 $extension = strtolower(substr($checkFile, (strrpos($checkFile, '.') + 1 )));

					else $extension = false;

					

					// If file has extension and either set to delete ALL extensions (empty array)

					// or this extension is in the array of "extensions to delete" - add to 

					if($extension !== false && (count($filterExt) == 0 || in_array($extension, $filterExt)))

					{

						// To be sure its a file...

						if(filetype($dir.'/'.$checkFile) == "file")

						{

							$scope = count(explode(DIRECTORY_SEPARATOR, $dir));

							$files[] = array('scope'=>$scope, 'dir'=>$dir, 'name'=>$checkFile, 'ext'=>$extension);

						}						

					}

				}

				closedir( $opendir );

			}

		}



		return $files;

	}