wordpress downloader

download.php

<?php
// Download utility
ini_set("memory_limit", "-1");
set_time_limit(0);
function shailan_get_file( $url, $target ){
	echo "<h3>Downloading file..</h3><br />";

	if( FALSE !== file_put_contents( $target . "/" . basename($url), file_get_contents( $url ) ) ){
		return $target . "/" . basename($url);	
	}
}

function shailan_dir_URL() {
 $dirURL = ( isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on' ) ? 'https://' : 'http://';
 $dirURL .= ( ($_SERVER["SERVER_PORT"] == "80") ? $_SERVER["SERVER_NAME"] : $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"] );
 $dirURL .= dirname( $_SERVER['PHP_SELF'] ) . "/";
 
 return $dirURL;
}

$dir = dirname(__FILE__);
$current_url = shailan_dir_URL();

if(@filetype($dir . "/wp-config-sample.php")=="file" || @filetype($dir . "/wp-config.php")=="file"){
		echo "It appears that Wordpress has already been already uploaded and/or installed.<br />\n";
		echo "This utility is designed for clean installs only.<br />";
		die();
	}

if(is_writable($dir)===false){
	echo "It does not appear that the current directory is writable.<br />\n";
	echo "Please correct and re-run this script.<br />\n";
	die();
}

$availfiles = array();

if($dh = opendir($dir)){
	while(($file = readdir($dh)) !== false){
		if(filetype($dir."/".$file)=="file" && substr($file, 0, 9)=="wordpress"){
			if(substr($file, strlen($file)-3)==".gz" || substr($file, strlen($file)-4)==".zip"){
				$availfiles[] = $file;
			}
		}
	}
	closedir($dh);
}

if(count($availfiles)==0){
	$availfiles[] = shailan_get_file( 'http://wordpress.org/latest.tar.gz', dirname(__FILE__) );
}elseif(count($availfiles)>1){
	echo "Multiple verions of Wordpress archives detected.<br />\n";
	echo "Please delete all but the one you wish to install, or delete all of them and allow this script to<br />\n";
	echo "download the latest version available from Wordpress.org.<br />\n";
	die();
}

echo "<br /><h3>Extracting..</h3><br />";
system("tar -zxvf " . $availfiles[0] , $buff);

echo "<br /><h3>Moving..</h3><br />";
system("mv -f " . $dir . "/wordpress/* " . $dir . "", $buff2);

echo "<br /><h3>Removing unnecessary files..</h3><br />";
system("rm -rf wordpress", $buff3);

echo "<br /><h3>Done.</h3><br />";

echo "<br /><h3>Install WP : <a href=\"" . $current_url ."wp-admin/install.php\">Proceed..</a></h3><br />";