HEADmaster

1 files changed, 0 insertions, 1244 deletions

diff --git a/function/thumb.php b/function/thumb.php
deleted file mode 100644
index 8eb6bb8..0000000
--- a/function/thumb.php
+++ /dev/null
@@ -1,1244 +0,0 @@
-<?php

-/**

- * TimThumb by Ben Gillbanks and Mark Maunder

- * Based on work done by Tim McDaniels and Darren Hoyt

- * http://code.google.com/p/timthumb/

- * 

- * GNU General Public License, version 2

- * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html

- *

- * Examples and documentation available on the project homepage

- * http://www.binarymoon.co.uk/projects/timthumb/

- * 

- * $Rev$

- */

-

-/*

- * --- TimThumb CONFIGURATION ---

- * To edit the configs it is best to create a file called timthumb-config.php

- * and define variables you want to customize in there. It will automatically be

- * loaded by timthumb. This will save you having to re-edit these variables

- * everytime you download a new version

-*/

-define ('VERSION', '2.8.10');																		// Version of this script 

-//Load a config file if it exists. Otherwise, use the values below

-if( file_exists(dirname(__FILE__) . '/timthumb-config.php'))	require_once('timthumb-config.php');

-if(! defined('DEBUG_ON') )					define ('DEBUG_ON', false);								// Enable debug logging to web server error log (STDERR)

-if(! defined('DEBUG_LEVEL') )				define ('DEBUG_LEVEL', 1);								// Debug level 1 is less noisy and 3 is the most noisy

-if(! defined('MEMORY_LIMIT') )				define ('MEMORY_LIMIT', '30M');							// Set PHP memory limit

-if(! defined('BLOCK_EXTERNAL_LEECHERS') ) 	define ('BLOCK_EXTERNAL_LEECHERS', false);				// If the image or webshot is being loaded on an external site, display a red "No Hotlinking" gif.

-

-//Image fetching and caching

-if(! defined('ALLOW_EXTERNAL') )			define ('ALLOW_EXTERNAL', false);						// Allow image fetching from external websites. Will check against ALLOWED_SITES if ALLOW_ALL_EXTERNAL_SITES is false

-if(! defined('ALLOW_ALL_EXTERNAL_SITES') ) 	define ('ALLOW_ALL_EXTERNAL_SITES', false);				// Less secure. 

-if(! defined('FILE_CACHE_ENABLED') ) 		define ('FILE_CACHE_ENABLED', TRUE);					// Should we store resized/modified images on disk to speed things up?

-if(! defined('FILE_CACHE_TIME_BETWEEN_CLEANS'))	define ('FILE_CACHE_TIME_BETWEEN_CLEANS', 86400);	// How often the cache is cleaned 

-

-if(! defined('FILE_CACHE_MAX_FILE_AGE') ) 	define ('FILE_CACHE_MAX_FILE_AGE', 86400);				// How old does a file have to be to be deleted from the cache

-if(! defined('FILE_CACHE_SUFFIX') ) 		define ('FILE_CACHE_SUFFIX', '.timthumb.txt');			// What to put at the end of all files in the cache directory so we can identify them

-if(! defined('FILE_CACHE_PREFIX') ) 		define ('FILE_CACHE_PREFIX', 'timthumb');				// What to put at the beg of all files in the cache directory so we can identify them

-if(! defined('FILE_CACHE_DIRECTORY') ) 		define ('FILE_CACHE_DIRECTORY', './cache');				// Directory where images are cached. Left blank it will use the system temporary directory (which is better for security)

-if(! defined('MAX_FILE_SIZE') )				define ('MAX_FILE_SIZE', 10485760);						// 10 Megs is 10485760. This is the max internal or external file size that we'll process.  

-if(! defined('CURL_TIMEOUT') )				define ('CURL_TIMEOUT', 20);							// Timeout duration for Curl. This only applies if you have Curl installed and aren't using PHP's default URL fetching mechanism.

-if(! defined('WAIT_BETWEEN_FETCH_ERRORS') )	define ('WAIT_BETWEEN_FETCH_ERRORS', 3600);				//Time to wait between errors fetching remote file

-

-//Browser caching

-if(! defined('BROWSER_CACHE_MAX_AGE') ) 	define ('BROWSER_CACHE_MAX_AGE', 864000);				// Time to cache in the browser

-if(! defined('BROWSER_CACHE_DISABLE') ) 	define ('BROWSER_CACHE_DISABLE', false);				// Use for testing if you want to disable all browser caching

-

-//Image size and defaults

-if(! defined('MAX_WIDTH') ) 			define ('MAX_WIDTH', 1500);									// Maximum image width

-if(! defined('MAX_HEIGHT') ) 			define ('MAX_HEIGHT', 1500);								// Maximum image height

-if(! defined('NOT_FOUND_IMAGE') )		define ('NOT_FOUND_IMAGE', '');								// Image to serve if any 404 occurs 

-if(! defined('ERROR_IMAGE') )			define ('ERROR_IMAGE', '');									// Image to serve if an error occurs instead of showing error message 

-if(! defined('PNG_IS_TRANSPARENT') ) 	define ('PNG_IS_TRANSPARENT', FALSE);  //42 Define if a png image should have a transparent background color. Use False value if you want to display a custom coloured canvas_colour 

-if(! defined('DEFAULT_Q') )				define ('DEFAULT_Q', 90);									// Default image quality. Allows overrid in timthumb-config.php

-if(! defined('DEFAULT_ZC') )			define ('DEFAULT_ZC', 1);									// Default zoom/crop setting. Allows overrid in timthumb-config.php

-if(! defined('DEFAULT_F') )				define ('DEFAULT_F', '');									// Default image filters. Allows overrid in timthumb-config.php

-if(! defined('DEFAULT_S') )				define ('DEFAULT_S', 0);									// Default sharpen value. Allows overrid in timthumb-config.php

-if(! defined('DEFAULT_CC') )			define ('DEFAULT_CC', 'ffffff');							// Default canvas colour. Allows overrid in timthumb-config.php

-

-

-//Image compression is enabled if either of these point to valid paths

-

-//These are now disabled by default because the file sizes of PNGs (and GIFs) are much smaller than we used to generate. 

-//They only work for PNGs. GIFs and JPEGs are not affected.

-if(! defined('OPTIPNG_ENABLED') ) 		define ('OPTIPNG_ENABLED', false);  

-if(! defined('OPTIPNG_PATH') ) 			define ('OPTIPNG_PATH', '/usr/bin/optipng'); //This will run first because it gives better compression than pngcrush. 

-if(! defined('PNGCRUSH_ENABLED') ) 		define ('PNGCRUSH_ENABLED', false); 

-if(! defined('PNGCRUSH_PATH') ) 		define ('PNGCRUSH_PATH', '/usr/bin/pngcrush'); //This will only run if OPTIPNG_PATH is not set or is not valid

-

-/*

-	-------====Website Screenshots configuration - BETA====-------

-	

-	If you just want image thumbnails and don't want website screenshots, you can safely leave this as is.	

-	

-	If you would like to get website screenshots set up, you will need root access to your own server.

-

-	Enable ALLOW_ALL_EXTERNAL_SITES so you can fetch any external web page. This is more secure now that we're using a non-web folder for cache.

-	Enable BLOCK_EXTERNAL_LEECHERS so that your site doesn't generate thumbnails for the whole Internet.

-

-	Instructions to get website screenshots enabled on Ubuntu Linux:

-

-	1. Install Xvfb with the following command: sudo apt-get install subversion libqt4-webkit libqt4-dev g++ xvfb

-	2. Go to a directory where you can download some code

-	3. Check-out the latest version of CutyCapt with the following command: svn co https://cutycapt.svn.sourceforge.net/svnroot/cutycapt

-	4. Compile CutyCapt by doing: cd cutycapt/CutyCapt

-	5. qmake

-	6. make

-	7. cp CutyCapt /usr/local/bin/

-	8. Test it by running: xvfb-run --server-args="-screen 0, 1024x768x24" CutyCapt --url="http://markmaunder.com/" --out=test.png

-	9. If you get a file called test.png with something in it, it probably worked. Now test the script by accessing it as follows:

-	10. http://yoursite.com/path/to/timthumb.php?src=http://markmaunder.com/&webshot=1

-

-	Notes on performance: 

-	The first time a webshot loads, it will take a few seconds.

-	From then on it uses the regular timthumb caching mechanism with the configurable options above

-	and loading will be very fast.

-

-	--ADVANCED USERS ONLY--

-	If you'd like a slight speedup (about 25%) and you know Linux, you can run the following command which will keep Xvfb running in the background.

-	nohup Xvfb :100 -ac -nolisten tcp -screen 0, 1024x768x24 > /dev/null 2>&1 &

-	Then set WEBSHOT_XVFB_RUNNING = true below. This will save your server having to fire off a new Xvfb server and shut it down every time a new shot is generated. 

-	You will need to take responsibility for keeping Xvfb running in case it crashes. (It seems pretty stable)

-	You will also need to take responsibility for server security if you're running Xvfb as root. 

-

-

-*/

-if(! defined('WEBSHOT_ENABLED') ) 	define ('WEBSHOT_ENABLED', false);			//Beta feature. Adding webshot=1 to your query string will cause the script to return a browser screenshot rather than try to fetch an image.

-if(! defined('WEBSHOT_CUTYCAPT') ) 	define ('WEBSHOT_CUTYCAPT', '/usr/local/bin/CutyCapt'); //The path to CutyCapt. 

-if(! defined('WEBSHOT_XVFB') ) 		define ('WEBSHOT_XVFB', '/usr/bin/xvfb-run');		//The path to the Xvfb server

-if(! defined('WEBSHOT_SCREEN_X') ) 	define ('WEBSHOT_SCREEN_X', '1024');			//1024 works ok

-if(! defined('WEBSHOT_SCREEN_Y') ) 	define ('WEBSHOT_SCREEN_Y', '768');			//768 works ok

-if(! defined('WEBSHOT_COLOR_DEPTH') ) 	define ('WEBSHOT_COLOR_DEPTH', '24');			//I haven't tested anything besides 24

-if(! defined('WEBSHOT_IMAGE_FORMAT') ) 	define ('WEBSHOT_IMAGE_FORMAT', 'png');			//png is about 2.5 times the size of jpg but is a LOT better quality

-if(! defined('WEBSHOT_TIMEOUT') ) 	define ('WEBSHOT_TIMEOUT', '20');			//Seconds to wait for a webshot

-if(! defined('WEBSHOT_USER_AGENT') ) 	define ('WEBSHOT_USER_AGENT', "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.18) Gecko/20110614 Firefox/3.6.18"); //I hate to do this, but a non-browser robot user agent might not show what humans see. So we pretend to be Firefox

-if(! defined('WEBSHOT_JAVASCRIPT_ON') ) define ('WEBSHOT_JAVASCRIPT_ON', true);			//Setting to false might give you a slight speedup and block ads. But it could cause other issues.

-if(! defined('WEBSHOT_JAVA_ON') ) 	define ('WEBSHOT_JAVA_ON', false);			//Have only tested this as fase

-if(! defined('WEBSHOT_PLUGINS_ON') ) 	define ('WEBSHOT_PLUGINS_ON', true);			//Enable flash and other plugins

-if(! defined('WEBSHOT_PROXY') ) 	define ('WEBSHOT_PROXY', '');				//In case you're behind a proxy server. 

-if(! defined('WEBSHOT_XVFB_RUNNING') )	define ('WEBSHOT_XVFB_RUNNING', false);			//ADVANCED: Enable this if you've got Xvfb running in the background.

-

-

-// If ALLOW_EXTERNAL is true and ALLOW_ALL_EXTERNAL_SITES is false, then external images will only be fetched from these domains and their subdomains. 

-if(! isset($ALLOWED_SITES)){

-	$ALLOWED_SITES = array (

-		'flickr.com',

-		'staticflickr.com',

-		'picasa.com',

-		'img.youtube.com',

-		'upload.wikimedia.org',

-		'photobucket.com',

-		'imgur.com',

-		'imageshack.us',

-		'tinypic.com',

-	);

-}

-// -------------------------------------------------------------

-// -------------- STOP EDITING CONFIGURATION HERE --------------

-// -------------------------------------------------------------

-

-timthumb::start();

-

-class timthumb {

-	protected $src = "";

-	protected $is404 = false;

-	protected $docRoot = "";

-	protected $lastURLError = false;

-	protected $localImage = "";

-	protected $localImageMTime = 0;

-	protected $url = false;

-	protected $myHost = "";

-	protected $isURL = false;

-	protected $cachefile = '';

-	protected $errors = array();

-	protected $toDeletes = array();

-	protected $cacheDirectory = '';

-	protected $startTime = 0;

-	protected $lastBenchTime = 0;

-	protected $cropTop = false;

-	protected $salt = "";

-	protected $fileCacheVersion = 1; //Generally if timthumb.php is modifed (upgraded) then the salt changes and all cache files are recreated. This is a backup mechanism to force regen.

-	protected $filePrependSecurityBlock = "<?php die('Execution denied!'); //"; //Designed to have three letter mime type, space, question mark and greater than symbol appended. 6 bytes total.

-	protected static $curlDataWritten = 0;

-	protected static $curlFH = false;

-	public static function start(){

-		$tim = new timthumb();

-		$tim->handleErrors();

-		$tim->securityChecks();

-		if($tim->tryBrowserCache()){

-			exit(0);

-		}

-		$tim->handleErrors();

-		if(FILE_CACHE_ENABLED && $tim->tryServerCache()){

-			exit(0);

-		}

-		$tim->handleErrors();

-		$tim->run();

-		$tim->handleErrors();

-		exit(0);

-	}

-	public function __construct(){

-		global $ALLOWED_SITES;

-		$this->startTime = microtime(true);

-		date_default_timezone_set('UTC');

-		$this->debug(1, "Starting new request from " . $this->getIP() . " to " . $_SERVER['REQUEST_URI']);

-		$this->calcDocRoot();

-		//On windows systems I'm assuming fileinode returns an empty string or a number that doesn't change. Check this.

-		$this->salt = @filemtime(__FILE__) . '-' . @fileinode(__FILE__);

-		$this->debug(3, "Salt is: " . $this->salt);

-		if(FILE_CACHE_DIRECTORY){

-			if(! is_dir(FILE_CACHE_DIRECTORY)){

-				@mkdir(FILE_CACHE_DIRECTORY);

-				if(! is_dir(FILE_CACHE_DIRECTORY)){

-					$this->error("Could not create the file cache directory.");

-					return false;

-				}

-			}

-			$this->cacheDirectory = FILE_CACHE_DIRECTORY;

-			if (!touch($this->cacheDirectory . '/index.html')) {

-				$this->error("Could not create the index.html file - to fix this create an empty file named index.html file in the cache directory.");

-			}

-		} else {

-			$this->cacheDirectory = sys_get_temp_dir();

-		}

-		//Clean the cache before we do anything because we don't want the first visitor after FILE_CACHE_TIME_BETWEEN_CLEANS expires to get a stale image. 

-		$this->cleanCache();

-		

-		$this->myHost = preg_replace('/^www\./i', '', $_SERVER['HTTP_HOST']);

-		$this->src = $this->param('src');

-		$this->url = parse_url($this->src);

-		$this->src = preg_replace('/https?:\/\/(?:www\.)?' . $this->myHost . '/i', '', $this->src);

-		

-		if(strlen($this->src) <= 3){

-			$this->error("No image specified");

-			return false;

-		}

-		if(BLOCK_EXTERNAL_LEECHERS && array_key_exists('HTTP_REFERER', $_SERVER) && (! preg_match('/^https?:\/\/(?:www\.)?' . $this->myHost . '(?:$|\/)/i', $_SERVER['HTTP_REFERER']))){

-			// base64 encoded red image that says 'no hotlinkers'

-			// nothing to worry about! :)

-			$imgData = base64_decode("R0lGODlhUAAMAIAAAP8AAP///yH5BAAHAP8ALAAAAABQAAwAAAJpjI+py+0Po5y0OgAMjjv01YUZ\nOGplhWXfNa6JCLnWkXplrcBmW+spbwvaVr/cDyg7IoFC2KbYVC2NQ5MQ4ZNao9Ynzjl9ScNYpneb\nDULB3RP6JuPuaGfuuV4fumf8PuvqFyhYtjdoeFgAADs=");

-			header('Content-Type: image/gif');

-			header('Content-Length: ' . sizeof($imgData));

-			header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');

-			header("Pragma: no-cache");

-			header('Expires: ' . gmdate ('D, d M Y H:i:s', time()));

-			echo $imgData;

-			return false;

-			exit(0);

-		}

-		if(preg_match('/^https?:\/\/[^\/]+/i', $this->src)){

-			$this->debug(2, "Is a request for an external URL: " . $this->src);

-			$this->isURL = true;

-		} else {

-			$this->debug(2, "Is a request for an internal file: " . $this->src);

-		}

-		if($this->isURL && (! ALLOW_EXTERNAL)){

-			$this->error("You are not allowed to fetch images from an external website.");

-			return false;

-		}

-		if($this->isURL){

-			if(ALLOW_ALL_EXTERNAL_SITES){

-				$this->debug(2, "Fetching from all external sites is enabled.");

-			} else {

-				$this->debug(2, "Fetching only from selected external sites is enabled.");

-				$allowed = false;

-				foreach($ALLOWED_SITES as $site){

-					if ((strtolower(substr($this->url['host'],-strlen($site)-1)) === strtolower(".$site")) || (strtolower($this->url['host'])===strtolower($site))) {

-						$this->debug(3, "URL hostname {$this->url['host']} matches $site so allowing.");

-						$allowed = true;

-					}

-				}

-				if(! $allowed){

-					return $this->error("You may not fetch images from that site. To enable this site in timthumb, you can either add it to \$ALLOWED_SITES and set ALLOW_EXTERNAL=true. Or you can set ALLOW_ALL_EXTERNAL_SITES=true, depending on your security needs.");

-				}

-			}

-		}

-

-		$cachePrefix = ($this->isURL ? '_ext_' : '_int_');

-		if($this->isURL){

-			$arr = explode('&', $_SERVER ['QUERY_STRING']);

-			asort($arr);

-			$this->cachefile = $this->cacheDirectory . '/' . FILE_CACHE_PREFIX . $cachePrefix . md5($this->salt . implode('', $arr) . $this->fileCacheVersion) . FILE_CACHE_SUFFIX;

-		} else {

-			$this->localImage = $this->getLocalImagePath($this->src);

-			if(! $this->localImage){

-				$this->debug(1, "Could not find the local image: {$this->localImage}");

-				$this->error("Could not find the internal image you specified.");

-				$this->set404();

-				return false;

-			}

-			$this->debug(1, "Local image path is {$this->localImage}");

-			$this->localImageMTime = @filemtime($this->localImage);

-			//We include the mtime of the local file in case in changes on disk.

-			$this->cachefile = $this->cacheDirectory . '/' . FILE_CACHE_PREFIX . $cachePrefix . md5($this->salt . $this->localImageMTime . $_SERVER ['QUERY_STRING'] . $this->fileCacheVersion) . FILE_CACHE_SUFFIX;

-		}

-		$this->debug(2, "Cache file is: " . $this->cachefile);

-

-		return true;

-	}

-	public function __destruct(){

-		foreach($this->toDeletes as $del){

-			$this->debug(2, "Deleting temp file $del");

-			@unlink($del);

-		}

-	}

-	public function run(){

-		if($this->isURL){

-			if(! ALLOW_EXTERNAL){

-				$this->debug(1, "Got a request for an external image but ALLOW_EXTERNAL is disabled so returning error msg.");

-				$this->error("You are not allowed to fetch images from an external website.");

-				return false;

-			}

-			$this->debug(3, "Got request for external image. Starting serveExternalImage.");

-			if($this->param('webshot')){

-				if(WEBSHOT_ENABLED){

-					$this->debug(3, "webshot param is set, so we're going to take a webshot.");

-					$this->serveWebshot();

-				} else {

-					$this->error("You added the webshot parameter but webshots are disabled on this server. You need to set WEBSHOT_ENABLED == true to enable webshots.");

-				}

-			} else {

-				$this->debug(3, "webshot is NOT set so we're going to try to fetch a regular image.");

-				$this->serveExternalImage();

-

-			}

-		} else {

-			$this->debug(3, "Got request for internal image. Starting serveInternalImage()");

-			$this->serveInternalImage();

-		}

-		return true;

-	}

-	protected function handleErrors(){

-		if($this->haveErrors()){ 

-			if(NOT_FOUND_IMAGE && $this->is404()){

-				if($this->serveImg(NOT_FOUND_IMAGE)){

-					exit(0);

-				} else {

-					$this->error("Additionally, the 404 image that is configured could not be found or there was an error serving it.");

-				}

-			}

-			if(ERROR_IMAGE){

-				if($this->serveImg(ERROR_IMAGE)){

-					exit(0);

-				} else {

-					$this->error("Additionally, the error image that is configured could not be found or there was an error serving it.");

-				}

-			}

-			$this->serveErrors(); 

-			exit(0); 

-		}

-		return false;

-	}

-	protected function tryBrowserCache(){

-		if(BROWSER_CACHE_DISABLE){ $this->debug(3, "Browser caching is disabled"); return false; }

-		if(!empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) ){

-			$this->debug(3, "Got a conditional get");

-			$mtime = false;

-			//We've already checked if the real file exists in the constructor

-			if(! is_file($this->cachefile)){

-				//If we don't have something cached, regenerate the cached image.

-				return false;

-			}

-			if($this->localImageMTime){

-				$mtime = $this->localImageMTime;

-				$this->debug(3, "Local real file's modification time is $mtime");

-			} else if(is_file($this->cachefile)){ //If it's not a local request then use the mtime of the cached file to determine the 304

-				$mtime = @filemtime($this->cachefile);

-				$this->debug(3, "Cached file's modification time is $mtime");

-			}

-			if(! $mtime){ return false; }

-

-			$iftime = strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']);

-			$this->debug(3, "The conditional get's if-modified-since unixtime is $iftime");

-			if($iftime < 1){

-				$this->debug(3, "Got an invalid conditional get modified since time. Returning false.");

-				return false;

-			}

-			if($iftime < $mtime){ //Real file or cache file has been modified since last request, so force refetch.

-				$this->debug(3, "File has been modified since last fetch.");

-				return false;

-			} else { //Otherwise serve a 304

-				$this->debug(3, "File has not been modified since last get, so serving a 304.");

-				header ($_SERVER['SERVER_PROTOCOL'] . ' 304 Not Modified');

-				$this->debug(1, "Returning 304 not modified");

-				return true;

-			}

-		}

-		return false;

-	}

-	protected function tryServerCache(){

-		$this->debug(3, "Trying server cache");

-		if(file_exists($this->cachefile)){

-			$this->debug(3, "Cachefile {$this->cachefile} exists");

-			if($this->isURL){

-				$this->debug(3, "This is an external request, so checking if the cachefile is empty which means the request failed previously.");

-				if(filesize($this->cachefile) < 1){

-					$this->debug(3, "Found an empty cachefile indicating a failed earlier request. Checking how old it is.");

-					//Fetching error occured previously

-					if(time() - @filemtime($this->cachefile) > WAIT_BETWEEN_FETCH_ERRORS){

-						$this->debug(3, "File is older than " . WAIT_BETWEEN_FETCH_ERRORS . " seconds. Deleting and returning false so app can try and load file.");

-						@unlink($this->cachefile);

-						return false; //to indicate we didn't serve from cache and app should try and load

-					} else {

-						$this->debug(3, "Empty cachefile is still fresh so returning message saying we had an error fetching this image from remote host.");

-						$this->set404();

-						$this->error("An error occured fetching image.");

-						return false; 

-					}

-				}

-			} else {

-				$this->debug(3, "Trying to serve cachefile {$this->cachefile}");

-			}

-			if($this->serveCacheFile()){

-				$this->debug(3, "Succesfully served cachefile {$this->cachefile}");

-				return true;

-			} else {

-				$this->debug(3, "Failed to serve cachefile {$this->cachefile} - Deleting it from cache.");

-				//Image serving failed. We can't retry at this point, but lets remove it from cache so the next request recreates it

-				@unlink($this->cachefile);

-				return true;

-			}

-		}

-	}

-	protected function error($err){

-		$this->debug(3, "Adding error message: $err");

-		$this->errors[] = $err;

-		return false;

-

-	}

-	protected function haveErrors(){

-		if(sizeof($this->errors) > 0){

-			return true;

-		}

-		return false;

-	}

-	protected function serveErrors(){

-		header ($_SERVER['SERVER_PROTOCOL'] . ' 400 Bad Request');

-		$html = '<ul>';

-		foreach($this->errors as $err){

-			$html .= '<li>' . htmlentities($err) . '</li>';

-		}

-		$html .= '</ul>';

-		echo '<h1>A TimThumb error has occured</h1>The following error(s) occured:<br />' . $html . '<br />';

-		echo '<br />Query String : ' . htmlentities ($_SERVER['QUERY_STRING']);

-		echo '<br />TimThumb version : ' . VERSION . '</pre>';

-	}

-	protected function serveInternalImage(){

-		$this->debug(3, "Local image path is $this->localImage");

-		if(! $this->localImage){

-			$this->sanityFail("localImage not set after verifying it earlier in the code.");

-			return false;

-		}

-		$fileSize = filesize($this->localImage);

-		if($fileSize > MAX_FILE_SIZE){

-			$this->error("The file you specified is greater than the maximum allowed file size.");

-			return false;

-		}

-		if($fileSize <= 0){

-			$this->error("The file you specified is <= 0 bytes.");

-			return false;

-		}

-		$this->debug(3, "Calling processImageAndWriteToCache() for local image.");

-		if($this->processImageAndWriteToCache($this->localImage)){

-			$this->serveCacheFile();

-			return true;

-		} else { 

-			return false;

-		}

-	}

-	protected function cleanCache(){

-		if (FILE_CACHE_TIME_BETWEEN_CLEANS < 0) {

-			return;

-		}

-		$this->debug(3, "cleanCache() called");

-		$lastCleanFile = $this->cacheDirectory . '/timthumb_cacheLastCleanTime.touch';

-		

-		//If this is a new timthumb installation we need to create the file

-		if(! is_file($lastCleanFile)){

-			$this->debug(1, "File tracking last clean doesn't exist. Creating $lastCleanFile");

-			if (!touch($lastCleanFile)) {

-				$this->error("Could not create cache clean timestamp file.");

-			}

-			return;

-		}

-		if(@filemtime($lastCleanFile) < (time() - FILE_CACHE_TIME_BETWEEN_CLEANS) ){ //Cache was last cleaned more than 1 day ago

-			$this->debug(1, "Cache was last cleaned more than " . FILE_CACHE_TIME_BETWEEN_CLEANS . " seconds ago. Cleaning now.");

-			// Very slight race condition here, but worst case we'll have 2 or 3 servers cleaning the cache simultaneously once a day.

-			if (!touch($lastCleanFile)) {

-				$this->error("Could not create cache clean timestamp file.");

-			}

-			$files = glob($this->cacheDirectory . '/*' . FILE_CACHE_SUFFIX);

-			if ($files) {

-				$timeAgo = time() - FILE_CACHE_MAX_FILE_AGE;

-				foreach($files as $file){

-					if(@filemtime($file) < $timeAgo){

-						$this->debug(3, "Deleting cache file $file older than max age: " . FILE_CACHE_MAX_FILE_AGE . " seconds");

-						@unlink($file);

-					}

-				}

-			}

-			return true;

-		} else {

-			$this->debug(3, "Cache was cleaned less than " . FILE_CACHE_TIME_BETWEEN_CLEANS . " seconds ago so no cleaning needed.");

-		}

-		return false;

-	}

-	protected function processImageAndWriteToCache($localImage){

-		$sData = getimagesize($localImage);

-		$origType = $sData[2];

-		$mimeType = $sData['mime'];

-

-		$this->debug(3, "Mime type of image is $mimeType");

-		if(! preg_match('/^image\/(?:gif|jpg|jpeg|png)$/i', $mimeType)){

-			return $this->error("The image being resized is not a valid gif, jpg or png.");

-		}

-

-		if (!function_exists ('imagecreatetruecolor')) {

-		    return $this->error('GD Library Error: imagecreatetruecolor does not exist - please contact your webhost and ask them to install the GD library');

-		}

-

-		if (function_exists ('imagefilter') && defined ('IMG_FILTER_NEGATE')) {

-			$imageFilters = array (

-				1 => array (IMG_FILTER_NEGATE, 0),

-				2 => array (IMG_FILTER_GRAYSCALE, 0),

-				3 => array (IMG_FILTER_BRIGHTNESS, 1),

-				4 => array (IMG_FILTER_CONTRAST, 1),

-				5 => array (IMG_FILTER_COLORIZE, 4),

-				6 => array (IMG_FILTER_EDGEDETECT, 0),

-				7 => array (IMG_FILTER_EMBOSS, 0),

-				8 => array (IMG_FILTER_GAUSSIAN_BLUR, 0),

-				9 => array (IMG_FILTER_SELECTIVE_BLUR, 0),

-				10 => array (IMG_FILTER_MEAN_REMOVAL, 0),

-				11 => array (IMG_FILTER_SMOOTH, 0),

-			);

-		}

-

-		// get standard input properties		

-		$new_width =  (int) abs ($this->param('w', 0));

-		$new_height = (int) abs ($this->param('h', 0));

-		$zoom_crop = (int) $this->param('zc', DEFAULT_ZC);

-		$quality = (int) abs ($this->param('q', DEFAULT_Q));

-		$align = $this->cropTop ? 't' : $this->param('a', 'c');

-		$filters = $this->param('f', DEFAULT_F);

-		$sharpen = (bool) $this->param('s', DEFAULT_S);

-		$canvas_color = $this->param('cc', DEFAULT_CC);

-		$canvas_trans = (bool) $this->param('ct', '1');

-

-		// set default width and height if neither are set already

-		if ($new_width == 0 && $new_height == 0) {

-		    $new_width = 100;

-		    $new_height = 100;

-		}

-

-		// ensure size limits can not be abused

-		$new_width = min ($new_width, MAX_WIDTH);

-		$new_height = min ($new_height, MAX_HEIGHT);

-

-		// set memory limit to be able to have enough space to resize larger images

-		$this->setMemoryLimit();

-

-		// open the existing image

-		$image = $this->openImage ($mimeType, $localImage);

-		if ($image === false) {

-			return $this->error('Unable to open image.');

-		}

-

-		// Get original width and height

-		$width = imagesx ($image);

-		$height = imagesy ($image);

-		$origin_x = 0;

-		$origin_y = 0;

-

-		// generate new w/h if not provided

-		if ($new_width && !$new_height) {

-			$new_height = floor ($height * ($new_width / $width));

-		} else if ($new_height && !$new_width) {

-			$new_width = floor ($width * ($new_height / $height));

-		}

-

-		// scale down and add borders

-		if ($zoom_crop == 3) {

-

-			$final_height = $height * ($new_width / $width);

-

-			if ($final_height > $new_height) {

-				$new_width = $width * ($new_height / $height);

-			} else {

-				$new_height = $final_height;

-			}

-

-		}

-

-		// create a new true color image

-		$canvas = imagecreatetruecolor ($new_width, $new_height);

-		imagealphablending ($canvas, false);

-

-		if (strlen($canvas_color) == 3) { //if is 3-char notation, edit string into 6-char notation

-			$canvas_color =  str_repeat(substr($canvas_color, 0, 1), 2) . str_repeat(substr($canvas_color, 1, 1), 2) . str_repeat(substr($canvas_color, 2, 1), 2); 

-		} else if (strlen($canvas_color) != 6) {

-			$canvas_color = DEFAULT_CC; // on error return default canvas color

- 		}

-

-		$canvas_color_R = hexdec (substr ($canvas_color, 0, 2));

-		$canvas_color_G = hexdec (substr ($canvas_color, 2, 2));

-		$canvas_color_B = hexdec (substr ($canvas_color, 4, 2));

-

-		// Create a new transparent color for image

-	    // If is a png and PNG_IS_TRANSPARENT is false then remove the alpha transparency 

-		// (and if is set a canvas color show it in the background)

-		if(preg_match('/^image\/png$/i', $mimeType) && !PNG_IS_TRANSPARENT && $canvas_trans){ 

-			$color = imagecolorallocatealpha ($canvas, $canvas_color_R, $canvas_color_G, $canvas_color_B, 127);		

-		}else{

-			$color = imagecolorallocatealpha ($canvas, $canvas_color_R, $canvas_color_G, $canvas_color_B, 0);

-		}

-

-

-		// Completely fill the background of the new image with allocated color.

-		imagefill ($canvas, 0, 0, $color);

-

-		// scale down and add borders

-		if ($zoom_crop == 2) {

-

-			$final_height = $height * ($new_width / $width);

-

-			if ($final_height > $new_height) {

-

-				$origin_x = $new_width / 2;

-				$new_width = $width * ($new_height / $height);

-				$origin_x = round ($origin_x - ($new_width / 2));

-

-			} else {

-

-				$origin_y = $new_height / 2;

-				$new_height = $final_height;

-				$origin_y = round ($origin_y - ($new_height / 2));

-

-			}

-

-		}

-

-		// Restore transparency blending

-		imagesavealpha ($canvas, true);

-

-		if ($zoom_crop > 0) {

-

-			$src_x = $src_y = 0;

-			$src_w = $width;

-			$src_h = $height;

-

-			$cmp_x = $width / $new_width;

-			$cmp_y = $height / $new_height;

-

-			// calculate x or y coordinate and width or height of source

-			if ($cmp_x > $cmp_y) {

-

-				$src_w = round ($width / $cmp_x * $cmp_y);

-				$src_x = round (($width - ($width / $cmp_x * $cmp_y)) / 2);

-

-			} else if ($cmp_y > $cmp_x) {

-

-				$src_h = round ($height / $cmp_y * $cmp_x);

-				$src_y = round (($height - ($height / $cmp_y * $cmp_x)) / 2);

-

-			}

-

-			// positional cropping!

-			if ($align) {

-				if (strpos ($align, 't') !== false) {

-					$src_y = 0;

-				}

-				if (strpos ($align, 'b') !== false) {

-					$src_y = $height - $src_h;

-				}

-				if (strpos ($align, 'l') !== false) {

-					$src_x = 0;

-				}

-				if (strpos ($align, 'r') !== false) {

-					$src_x = $width - $src_w;

-				}

-			}

-

-			imagecopyresampled ($canvas, $image, $origin_x, $origin_y, $src_x, $src_y, $new_width, $new_height, $src_w, $src_h);

-

-		} else {

-

-			// copy and resize part of an image with resampling

-			imagecopyresampled ($canvas, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);

-

-		}

-

-		if ($filters != '' && function_exists ('imagefilter') && defined ('IMG_FILTER_NEGATE')) {

-			// apply filters to image

-			$filterList = explode ('|', $filters);

-			foreach ($filterList as $fl) {

-

-				$filterSettings = explode (',', $fl);

-				if (isset ($imageFilters[$filterSettings[0]])) {

-

-					for ($i = 0; $i < 4; $i ++) {

-						if (!isset ($filterSettings[$i])) {

-							$filterSettings[$i] = null;

-						} else {

-							$filterSettings[$i] = (int) $filterSettings[$i];

-						}

-					}

-

-					switch ($imageFilters[$filterSettings[0]][1]) {

-

-						case 1:

-

-							imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1]);

-							break;

-

-						case 2:

-

-							imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2]);

-							break;

-

-						case 3:

-

-							imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2], $filterSettings[3]);

-							break;

-

-						case 4:

-

-							imagefilter ($canvas, $imageFilters[$filterSettings[0]][0], $filterSettings[1], $filterSettings[2], $filterSettings[3], $filterSettings[4]);

-							break;

-

-						default:

-

-							imagefilter ($canvas, $imageFilters[$filterSettings[0]][0]);

-							break;

-

-					}

-				}

-			}

-		}

-

-		// sharpen image

-		if ($sharpen && function_exists ('imageconvolution')) {

-

-			$sharpenMatrix = array (

-					array (-1,-1,-1),

-					array (-1,16,-1),

-					array (-1,-1,-1),

-					);

-

-			$divisor = 8;

-			$offset = 0;

-

-			imageconvolution ($canvas, $sharpenMatrix, $divisor, $offset);

-

-		}

-		//Straight from Wordpress core code. Reduces filesize by up to 70% for PNG's

-		if ( (IMAGETYPE_PNG == $origType || IMAGETYPE_GIF == $origType) && function_exists('imageistruecolor') && !imageistruecolor( $image ) && imagecolortransparent( $image ) > 0 ){

-			imagetruecolortopalette( $canvas, false, imagecolorstotal( $image ) );

-		}

-

-		$imgType = "";

-		$tempfile = tempnam($this->cacheDirectory, 'timthumb_tmpimg_');

-		if(preg_match('/^image\/(?:jpg|jpeg)$/i', $mimeType)){ 

-			$imgType = 'jpg';

-			imagejpeg($canvas, $tempfile, $quality); 

-		} else if(preg_match('/^image\/png$/i', $mimeType)){ 

-			$imgType = 'png';

-			imagepng($canvas, $tempfile, floor($quality * 0.09));

-		} else if(preg_match('/^image\/gif$/i', $mimeType)){

-			$imgType = 'gif';

-			imagegif($canvas, $tempfile);

-		} else {

-			return $this->sanityFail("Could not match mime type after verifying it previously.");

-		}

-

-		if($imgType == 'png' && OPTIPNG_ENABLED && OPTIPNG_PATH && @is_file(OPTIPNG_PATH)){

-			$exec = OPTIPNG_PATH;

-			$this->debug(3, "optipng'ing $tempfile");

-			$presize = filesize($tempfile);

-			$out = `$exec -o1 $tempfile`; //you can use up to -o7 but it really slows things down

-			clearstatcache();

-			$aftersize = filesize($tempfile);

-			$sizeDrop = $presize - $aftersize;

-			if($sizeDrop > 0){

-				$this->debug(1, "optipng reduced size by $sizeDrop");

-			} else if($sizeDrop < 0){

-				$this->debug(1, "optipng increased size! Difference was: $sizeDrop");

-			} else {

-				$this->debug(1, "optipng did not change image size.");

-			}

-		} else if($imgType == 'png' && PNGCRUSH_ENABLED && PNGCRUSH_PATH && @is_file(PNGCRUSH_PATH)){

-			$exec = PNGCRUSH_PATH;

-			$tempfile2 = tempnam($this->cacheDirectory, 'timthumb_tmpimg_');

-			$this->debug(3, "pngcrush'ing $tempfile to $tempfile2");

-			$out = `$exec $tempfile $tempfile2`;

-			$todel = "";

-			if(is_file($tempfile2)){

-				$sizeDrop = filesize($tempfile) - filesize($tempfile2);

-				if($sizeDrop > 0){

-					$this->debug(1, "pngcrush was succesful and gave a $sizeDrop byte size reduction");

-					$todel = $tempfile;

-					$tempfile = $tempfile2;

-				} else {

-					$this->debug(1, "pngcrush did not reduce file size. Difference was $sizeDrop bytes.");

-					$todel = $tempfile2;

-				}

-			} else {

-				$this->debug(3, "pngcrush failed with output: $out");

-				$todel = $tempfile2;

-			}

-			@unlink($todel);

-		}

-

-		$this->debug(3, "Rewriting image with security header.");

-		$tempfile4 = tempnam($this->cacheDirectory, 'timthumb_tmpimg_');

-		$context = stream_context_create ();

-		$fp = fopen($tempfile,'r',0,$context);

-		file_put_contents($tempfile4, $this->filePrependSecurityBlock . $imgType . ' ?' . '>'); //6 extra bytes, first 3 being image type 

-		file_put_contents($tempfile4, $fp, FILE_APPEND);

-		fclose($fp);

-		@unlink($tempfile);

-		$this->debug(3, "Locking and replacing cache file.");

-		$lockFile = $this->cachefile . '.lock';

-		$fh = fopen($lockFile, 'w');

-		if(! $fh){

-			return $this->error("Could not open the lockfile for writing an image.");

-		}

-		if(flock($fh, LOCK_EX)){

-			@unlink($this->cachefile); //rename generally overwrites, but doing this in case of platform specific quirks. File might not exist yet.

-			rename($tempfile4, $this->cachefile);

-			flock($fh, LOCK_UN);

-			fclose($fh);

-			@unlink($lockFile);

-		} else {

-			fclose($fh);

-			@unlink($lockFile);

-			@unlink($tempfile4);

-			return $this->error("Could not get a lock for writing.");

-		}

-		$this->debug(3, "Done image replace with security header. Cleaning up and running cleanCache()");

-		imagedestroy($canvas);

-		imagedestroy($image);

-		return true;

-	}

-	protected function calcDocRoot(){

-		$docRoot = @$_SERVER['DOCUMENT_ROOT'];

-		if (defined('LOCAL_FILE_BASE_DIRECTORY')) {

-			$docRoot = LOCAL_FILE_BASE_DIRECTORY;   

-		}

-		if(!isset($docRoot)){ 

-			$this->debug(3, "DOCUMENT_ROOT is not set. This is probably windows. Starting search 1.");

-			if(isset($_SERVER['SCRIPT_FILENAME'])){

-				$docRoot = str_replace( '\\', '/', substr($_SERVER['SCRIPT_FILENAME'], 0, 0-strlen($_SERVER['PHP_SELF'])));

-				$this->debug(3, "Generated docRoot using SCRIPT_FILENAME and PHP_SELF as: $docRoot");

-			} 

-		}

-		if(!isset($docRoot)){ 

-			$this->debug(3, "DOCUMENT_ROOT still is not set. Starting search 2.");

-			if(isset($_SERVER['PATH_TRANSLATED'])){

-				$docRoot = str_replace( '\\', '/', substr(str_replace('\\\\', '\\', $_SERVER['PATH_TRANSLATED']), 0, 0-strlen($_SERVER['PHP_SELF'])));

-				$this->debug(3, "Generated docRoot using PATH_TRANSLATED and PHP_SELF as: $docRoot");

-			} 

-		}

-		if($docRoot && $_SERVER['DOCUMENT_ROOT'] != '/'){ $docRoot = preg_replace('/\/$/', '', $docRoot); }

-		$this->debug(3, "Doc root is: " . $docRoot);

-		$this->docRoot = $docRoot;

-

-	}

-	protected function getLocalImagePath($src){

-		$src = ltrim($src, '/'); //strip off the leading '/'

-		if(! $this->docRoot){

-			$this->debug(3, "We have no document root set, so as a last resort, lets check if the image is in the current dir and serve that.");

-			//We don't support serving images outside the current dir if we don't have a doc root for security reasons.

-			$file = preg_replace('/^.*?([^\/\\\\]+)$/', '$1', $src); //strip off any path info and just leave the filename.

-			if(is_file($file)){

-				return $this->realpath($file);

-			}

-			return $this->error("Could not find your website document root and the file specified doesn't exist in timthumbs directory. We don't support serving files outside timthumb's directory without a document root for security reasons.");

-		} //Do not go past this point without docRoot set

-

-		//Try src under docRoot

-		if(file_exists ($this->docRoot . '/' . $src)) {

-			$this->debug(3, "Found file as " . $this->docRoot . '/' . $src);

-			$real = $this->realpath($this->docRoot . '/' . $src);

-			if(stripos($real, $this->docRoot) === 0){

-				return $real;

-			} else {

-				$this->debug(1, "Security block: The file specified occurs outside the document root.");

-				//allow search to continue

-			}

-		}

-		//Check absolute paths and then verify the real path is under doc root

-		$absolute = $this->realpath('/' . $src);

-		if($absolute && file_exists($absolute)){ //realpath does file_exists check, so can probably skip the exists check here

-			$this->debug(3, "Found absolute path: $absolute");

-			if(! $this->docRoot){ $this->sanityFail("docRoot not set when checking absolute path."); }

-			if(stripos($absolute, $this->docRoot) === 0){

-				return $absolute;

-			} else {

-				$this->debug(1, "Security block: The file specified occurs outside the document root.");

-				//and continue search

-			}

-		}

-		

-		$base = $this->docRoot;

-		

-		// account for Windows directory structure

-		if (strstr($_SERVER['SCRIPT_FILENAME'],':')) {

-			$sub_directories = explode('\\', str_replace($this->docRoot, '', $_SERVER['SCRIPT_FILENAME']));

-		} else {

-			$sub_directories = explode('/', str_replace($this->docRoot, '', $_SERVER['SCRIPT_FILENAME']));

-		}

-

-		foreach ($sub_directories as $sub){

-			$base .= $sub . '/';

-			$this->debug(3, "Trying file as: " . $base . $src);

-			if(file_exists($base . $src)){

-				$this->debug(3, "Found file as: " . $base . $src);

-				$real = $this->realpath($base . $src);

-				if(stripos($real, $this->realpath($this->docRoot)) === 0){

-					return $real;

-				} else {

-					$this->debug(1, "Security block: The file specified occurs outside the document root.");

-					//And continue search

-				}

-			}

-		}

-		return false;

-	}

-	protected function realpath($path){

-		//try to remove any relative paths

-		$remove_relatives = '/\w+\/\.\.\//';

-		while(preg_match($remove_relatives,$path)){

-		    $path = preg_replace($remove_relatives, '', $path);

-		}

-		//if any remain use PHP realpath to strip them out, otherwise return $path

-		//if using realpath, any symlinks will also be resolved

-		return preg_match('#^\.\./|/\.\./#', $path) ? realpath($path) : $path;

-	}

-	protected function toDelete($name){

-		$this->debug(3, "Scheduling file $name to delete on destruct.");

-		$this->toDeletes[] = $name;

-	}

-	protected function serveWebshot(){

-		$this->debug(3, "Starting serveWebshot");

-		$instr = "Please follow the instructions at http://code.google.com/p/timthumb/ to set your server up for taking website screenshots.";

-		if(! is_file(WEBSHOT_CUTYCAPT)){

-			return $this->error("CutyCapt is not installed. $instr");

-		}

-		if(! is_file(WEBSHOT_XVFB)){

-			return $this->Error("Xvfb is not installed. $instr");

-		}

-		$cuty = WEBSHOT_CUTYCAPT;

-		$xv = WEBSHOT_XVFB;

-		$screenX = WEBSHOT_SCREEN_X;

-		$screenY = WEBSHOT_SCREEN_Y;

-		$colDepth = WEBSHOT_COLOR_DEPTH;

-		$format = WEBSHOT_IMAGE_FORMAT;

-		$timeout = WEBSHOT_TIMEOUT * 1000;

-		$ua = WEBSHOT_USER_AGENT;

-		$jsOn = WEBSHOT_JAVASCRIPT_ON ? 'on' : 'off';

-		$javaOn = WEBSHOT_JAVA_ON ? 'on' : 'off';

-		$pluginsOn = WEBSHOT_PLUGINS_ON ? 'on' : 'off';

-		$proxy = WEBSHOT_PROXY ? ' --http-proxy=' . WEBSHOT_PROXY : '';

-		$tempfile = tempnam($this->cacheDirectory, 'timthumb_webshot');

-		$url = $this->src;

-		if(! preg_match('/^https?:\/\/[a-zA-Z0-9\.\-]+/i', $url)){

-			return $this->error("Invalid URL supplied.");

-		}

-		$url = preg_replace('/[^A-Za-z0-9\-\.\_\~:\/\?\#\[\]\@\!\$\&\'\(\)\*\+\,\;\=]+/', '', $url); //RFC 3986

-		//Very important we don't allow injection of shell commands here. URL is between quotes and we are only allowing through chars allowed by a the RFC 

-		// which AFAIKT can't be used for shell injection. 

-		if(WEBSHOT_XVFB_RUNNING){

-			putenv('DISPLAY=:100.0');

-			$command = "$cuty $proxy --max-wait=$timeout --user-agent=\"$ua\" --javascript=$jsOn --java=$javaOn --plugins=$pluginsOn --js-can-open-windows=off --url=\"$url\" --out-format=$format --out=$tempfile";

-		} else {

-			$command = "$xv --server-args=\"-screen 0, {$screenX}x{$screenY}x{$colDepth}\" $cuty $proxy --max-wait=$timeout --user-agent=\"$ua\" --javascript=$jsOn --java=$javaOn --plugins=$pluginsOn --js-can-open-windows=off --url=\"$url\" --out-format=$format --out=$tempfile";

-		}

-		$this->debug(3, "Executing command: $command");

-		$out = `$command`;

-		$this->debug(3, "Received output: $out");

-		if(! is_file($tempfile)){

-			$this->set404();

-			return $this->error("The command to create a thumbnail failed.");

-		}

-		$this->cropTop = true;

-		if($this->processImageAndWriteToCache($tempfile)){

-			$this->debug(3, "Image processed succesfully. Serving from cache");

-			return $this->serveCacheFile();

-		} else {

-			return false;

-		}

-	}

-	protected function serveExternalImage(){

-		if(! preg_match('/^https?:\/\/[a-zA-Z0-9\-\.]+/i', $this->src)){

-			$this->error("Invalid URL supplied.");

-			return false;

-		}

-		$tempfile = tempnam($this->cacheDirectory, 'timthumb');

-		$this->debug(3, "Fetching external image into temporary file $tempfile");

-		$this->toDelete($tempfile);

-		#fetch file here

-		if(! $this->getURL($this->src, $tempfile)){

-			@unlink($this->cachefile);

-			touch($this->cachefile);

-			$this->debug(3, "Error fetching URL: " . $this->lastURLError);

-			$this->error("Error reading the URL you specified from remote host." . $this->lastURLError);

-			return false;

-		}

-

-		$mimeType = $this->getMimeType($tempfile);

-		if(! preg_match("/^image\/(?:jpg|jpeg|gif|png)$/i", $mimeType)){

-			$this->debug(3, "Remote file has invalid mime type: $mimeType");

-			@unlink($this->cachefile);

-			touch($this->cachefile);

-			$this->error("The remote file is not a valid image.");

-			return false;

-		}

-		if($this->processImageAndWriteToCache($tempfile)){

-			$this->debug(3, "Image processed succesfully. Serving from cache");

-			return $this->serveCacheFile();

-		} else {

-			return false;

-		}

-	}

-	public static function curlWrite($h, $d){

-		fwrite(self::$curlFH, $d);

-		self::$curlDataWritten += strlen($d);

-		if(self::$curlDataWritten > MAX_FILE_SIZE){

-			return 0;

-		} else {

-			return strlen($d);

-		}

-	}

-	protected function serveCacheFile(){

-		$this->debug(3, "Serving {$this->cachefile}");

-		if(! is_file($this->cachefile)){

-			$this->error("serveCacheFile called in timthumb but we couldn't find the cached file.");

-			return false;

-		}

-		$fp = fopen($this->cachefile, 'rb');

-		if(! $fp){ return $this->error("Could not open cachefile."); }

-		fseek($fp, strlen($this->filePrependSecurityBlock), SEEK_SET);

-		$imgType = fread($fp, 3);

-		fseek($fp, 3, SEEK_CUR);

-		if(ftell($fp) != strlen($this->filePrependSecurityBlock) + 6){

-			@unlink($this->cachefile);

-			return $this->error("The cached image file seems to be corrupt.");

-		}

-		$imageDataSize = filesize($this->cachefile) - (strlen($this->filePrependSecurityBlock) + 6);

-		$this->sendImageHeaders($imgType, $imageDataSize);

-		$bytesSent = @fpassthru($fp);

-		fclose($fp);

-		if($bytesSent > 0){

-			return true;

-		}

-		$content = file_get_contents ($this->cachefile);

-		if ($content != FALSE) {

-			$content = substr($content, strlen($this->filePrependSecurityBlock) + 6);

-			echo $content;

-			$this->debug(3, "Served using file_get_contents and echo");

-			return true;

-		} else {

-			$this->error("Cache file could not be loaded.");

-			return false;

-		}

-	}

-	protected function sendImageHeaders($mimeType, $dataSize){

-		if(! preg_match('/^image\//i', $mimeType)){

-			$mimeType = 'image/' . $mimeType;

-		}

-		if(strtolower($mimeType) == 'image/jpg'){

-			$mimeType = 'image/jpeg';

-		}

-		$gmdate_expires = gmdate ('D, d M Y H:i:s', strtotime ('now +10 days')) . ' GMT';

-		$gmdate_modified = gmdate ('D, d M Y H:i:s') . ' GMT';

-		// send content headers then display image

-		header ('Content-Type: ' . $mimeType);

-		header ('Accept-Ranges: none'); //Changed this because we don't accept range requests

-		header ('Last-Modified: ' . $gmdate_modified);

-		header ('Content-Length: ' . $dataSize);

-		if(BROWSER_CACHE_DISABLE){

-			$this->debug(3, "Browser cache is disabled so setting non-caching headers.");

-			header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');

-			header("Pragma: no-cache");

-			header('Expires: ' . gmdate ('D, d M Y H:i:s', time()));

-		} else {

-			$this->debug(3, "Browser caching is enabled");

-			header('Cache-Control: max-age=' . BROWSER_CACHE_MAX_AGE . ', must-revalidate');

-			header('Expires: ' . $gmdate_expires);

-		}

-		return true;

-	}

-	protected function securityChecks(){

-	}

-	protected function param($property, $default = ''){

-		if (isset ($_GET[$property])) {

-			return $_GET[$property];

-		} else {

-			return $default;

-		}

-	}

-	protected function openImage($mimeType, $src){

-		switch ($mimeType) {

-			case 'image/jpeg':

-				$image = imagecreatefromjpeg ($src);

-				break;

-

-			case 'image/png':

-				$image = imagecreatefrompng ($src);

-				break;

-

-			case 'image/gif':

-				$image = imagecreatefromgif ($src);

-				break;

-			

-			default:

-				$this->error("Unrecognised mimeType");

-		}

-

-		return $image;

-	}

-	protected function getIP(){

-		$rem = @$_SERVER["REMOTE_ADDR"];

-		$ff = @$_SERVER["HTTP_X_FORWARDED_FOR"];

-		$ci = @$_SERVER["HTTP_CLIENT_IP"];

-		if(preg_match('/^(?:192\.168|172\.16|10\.|127\.)/', $rem)){ 

-			if($ff){ return $ff; }

-			if($ci){ return $ci; }

-			return $rem;

-		} else {

-			if($rem){ return $rem; }

-			if($ff){ return $ff; }

-			if($ci){ return $ci; }

-			return "UNKNOWN";

-		}

-	}

-	protected function debug($level, $msg){

-		if(DEBUG_ON && $level <= DEBUG_LEVEL){

-			$execTime = sprintf('%.6f', microtime(true) - $this->startTime);

-			$tick = sprintf('%.6f', 0);

-			if($this->lastBenchTime > 0){

-				$tick = sprintf('%.6f', microtime(true) - $this->lastBenchTime);

-			}

-			$this->lastBenchTime = microtime(true);

-			error_log("TimThumb Debug line " . __LINE__ . " [$execTime : $tick]: $msg");

-		}

-	}

-	protected function sanityFail($msg){

-		return $this->error("There is a problem in the timthumb code. Message: Please report this error at <a href='http://code.google.com/p/timthumb/issues/list'>timthumb's bug tracking page</a>: $msg");

-	}

-	protected function getMimeType($file){

-		$info = getimagesize($file);

-		if(is_array($info) && $info['mime']){

-			return $info['mime'];

-		}

-		return '';

-	}

-	protected function setMemoryLimit(){

-		$inimem = ini_get('memory_limit');

-		$inibytes = timthumb::returnBytes($inimem);

-		$ourbytes = timthumb::returnBytes(MEMORY_LIMIT);

-		if($inibytes < $ourbytes){

-			ini_set ('memory_limit', MEMORY_LIMIT);

-			$this->debug(3, "Increased memory from $inimem to " . MEMORY_LIMIT);

-		} else {

-			$this->debug(3, "Not adjusting memory size because the current setting is " . $inimem . " and our size of " . MEMORY_LIMIT . " is smaller.");

-		}

-	}

-	protected static function returnBytes($size_str){

-		switch (substr ($size_str, -1))

-		{

-			case 'M': case 'm': return (int)$size_str * 1048576;

-			case 'K': case 'k': return (int)$size_str * 1024;

-			case 'G': case 'g': return (int)$size_str * 1073741824;

-			default: return $size_str;

-		}

-	}

-	protected function getURL($url, $tempfile){

-		$this->lastURLError = false;

-		$url = preg_replace('/ /', '%20', $url);

-		if(function_exists('curl_init')){

-			$this->debug(3, "Curl is installed so using it to fetch URL.");

-			self::$curlFH = fopen($tempfile, 'w');

-			if(! self::$curlFH){

-				$this->error("Could not open $tempfile for writing.");

-				return false;

-			}

-			self::$curlDataWritten = 0;

-			$this->debug(3, "Fetching url with curl: $url");

-			$curl = curl_init($url);

-			curl_setopt ($curl, CURLOPT_TIMEOUT, CURL_TIMEOUT);

-			curl_setopt ($curl, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.122 Safari/534.30");

-			curl_setopt ($curl, CURLOPT_RETURNTRANSFER, TRUE);

-			curl_setopt ($curl, CURLOPT_HEADER, 0);

-			curl_setopt ($curl, CURLOPT_SSL_VERIFYPEER, FALSE);

-			curl_setopt ($curl, CURLOPT_WRITEFUNCTION, 'timthumb::curlWrite');

-			@curl_setopt ($curl, CURLOPT_FOLLOWLOCATION, true);

-			@curl_setopt ($curl, CURLOPT_MAXREDIRS, 10);

-			

-			$curlResult = curl_exec($curl);

-			fclose(self::$curlFH);

-			$httpStatus = curl_getinfo($curl, CURLINFO_HTTP_CODE);

-			if($httpStatus == 404){

-				$this->set404();

-			}

-			if($curlResult){

-				curl_close($curl);

-				return true;

-			} else {

-				$this->lastURLError = curl_error($curl);

-				curl_close($curl);

-				return false;

-			}

-		} else {

-			$img = @file_get_contents ($url);

-			if($img === false){

-				$err = error_get_last();

-				if(is_array($err) && $err['message']){

-					$this->lastURLError = $err['message'];

-				} else {

-					$this->lastURLError = $err;

-				}

-				if(preg_match('/404/', $this->lastURLError)){

-					$this->set404();

-				}

-

-				return false;

-			}

-			if(! file_put_contents($tempfile, $img)){

-				$this->error("Could not write to $tempfile.");

-				return false;

-			}

-			return true;

-		}

-

-	}

-	protected function serveImg($file){

-		$s = getimagesize($file);

-		if(! ($s && $s['mime'])){

-			return false;

-		}

-		header ('Content-Type: ' . $s['mime']);

-		header ('Content-Length: ' . filesize($file) );

-		header ('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');

-		header ("Pragma: no-cache");

-		$bytes = @readfile($file);

-		if($bytes > 0){

-			return true;

-		}

-		$content = @file_get_contents ($file);

-		if ($content != FALSE){

-			echo $content;

-			return true;

-		}

-		return false;

-

-	}

-	protected function set404(){

-		$this->is404 = true;

-	}

-	protected function is404(){

-		return $this->is404;

-	}

-}