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index.php
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<?php
/**
* @author Andries Louw Wolthuizen
* @site images.weserv.nl
* @copyright 2013
**/
error_reporting(E_ALL);
set_time_limit(180);
$allowHosts = array(
'localhost',
'127.0.0.1'
);
// if(isset($_SERVER['HTTP_REFERER'])) {
// $url = parse_url($_SERVER['HTTP_REFERER']);
// if (! in_array($url['host'], $allowHosts)) {
// header("HTTP/1.0 500 Internal Server Error");
// exit;
// }
// } else {
// header("HTTP/1.0 500 Internal Server Error");
// exit;
// }
$img_data = '';
function download_file($path,$fname){
$options = array(
CURLOPT_FILE => fopen($fname, 'w'),
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_MAXREDIRS => 10,
CURLOPT_URL => $path,
CURLOPT_FAILONERROR => true, // HTTP code > 400 will throw curl error
CURLOPT_TIMEOUT => 10,
CURLOPT_CONNECTTIMEOUT => 5,
CURLOPT_USERAGENT => 'Mozilla/5.0 (compatible; ImageFetcher/4.0; +http://images.weserv.nl/)',
);
$ch = curl_init();
curl_setopt_array($ch, $options);
$return = curl_exec($ch);
if ($return === false){
$error = curl_error($ch);
curl_close($ch);
unlink($fname);
$error_code = substr($error,0,3);
if(in_array($error_code,array('400','403','404','500','502'))){
trigger_error('cURL Request error: '.$error.' URL: '.$path, E_USER_WARNING);
}
return array(false,$error);
}else{
curl_close($ch);
return array(true,NULL);
}
}
function create_image($path){
global $img_data;
$path = str_replace(' ','%20',$path);
$fname = tempnam('/dev/shm','imo_');
$curl_result = download_file($path,$fname);
if($curl_result[0] === false){
header("HTTP/1.0 404 Not Found");
$img_data['mime'] = 'text/plain';
echo 'Error 404: Server could parse the ?url= that you were looking for, error it got: '.$curl_result[1];
if(isset($_GET['detail'])){ echo '<small><br /><br />Debug: <br />Path: '.$path.'<br />Fname: '.$fname.'</small>'; }
echo '<small><br /><br />Also, if possible, please replace any occurences of of + in the ?url= with %2B (see <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/2586863-bug">+ bug</a>)</small>';
die;
}
try{
$img_data = @getimagesize($fname);
if(isset($img_data[2]) && in_array($img_data[2],array(IMAGETYPE_JPEG,IMAGETYPE_GIF,IMAGETYPE_PNG))){
if($img_data[0]*$img_data[1] > 71000000){
unlink($fname);
throw new Exception('Image too large for processing. Width x Height should be less than 70 megapixels.');
}
switch($img_data[2]){
case IMAGETYPE_JPEG:
$img_data['ext'] = 'jpg';
$img_data['exif'] = @exif_read_data($fname);
$gd_stream = imagecreatefromjpeg($fname);
break;
case IMAGETYPE_GIF:
$img_data['ext'] = 'gif';
$gd_stream = imagecreatefromgif($fname);
break;
case IMAGETYPE_PNG:
$img_data['ext'] = 'png';
$gd_stream = imagecreatefrompng($fname);
break;
}
}elseif(isset($img_data[2]) && $img_data[2] == IMAGETYPE_BMP){
$im = new Imagick($fname);
$im->setImageFormat('png');
$im->stripImage();
$tmpimagick = tempnam('/dev/shm','imb_');
$im->writeImage($tmpimagick);
$im->clear();
$im->destroy();
rename($tmpimagick,$fname);
$img_data = @getimagesize($fname);
$img_data['ext'] = 'jpg';
$img_data['mime'] = 'image/jpeg';
$gd_stream = imagecreatefrompng($fname);
}else{
unlink($fname);
throw new Exception('This is no JPG/GIF/PNG/BMP-file!');
}
if($gd_stream === false){
unlink($fname);
throw new Exception('Image format not valid.');
}
unlink($fname);
return $gd_stream;
}catch(Exception $e){
header("HTTP/1.0 404 Not Found");
$img_data['mime'] = 'text/plain';
echo 'Error 404: Server could parse the ?url= that you were looking for, because it isn\'t a valid (supported) image, error: '.$e->getMessage();
if(isset($_GET['detail'])){ echo '<small><br /><br />Debug: <br />Path: '.$path.'<br />Fname: '.$fname.'</small>'; }
echo '<small><br /><br />Also, if possible, please replace any occurences of of + in the ?url= with %2B (see <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/2586863-bug">+ bug</a>)</small>';
if($e->getMessage() != 'This is no JPG/GIF/PNG/BMP-file!'){
trigger_error('URL failed. Message: '.$e->getMessage().' URL: '.$path,E_USER_WARNING);
}
die;
}
}
function show_image($image,$quality){
global $img_data;
switch($img_data['mime']){
case 'image/jpeg':
return imagejpeg($image,NULL,$quality);
break;
case 'image/gif':
return imagegif($image);
break;
case 'image/png':
imagesavealpha($image,true);
return imagepng($image);
break;
}
}
function resize_image($image,$max_height,$max_width,$transformation,$alignment,$trim,$circle,$interlace){
global $img_data;
$cur_width = $img_data[0];
$cur_height = $img_data[1];
if($trim > 0){
$ta = imageTrimmedBox($cur_width,$cur_height,$image,$trim);
if($ta !== false){
$cur_width = $ta['w'];
$cur_height = $ta['h'];
}
}
if(($max_height+$max_width) > 0 || $trim > 0){
$new = set_dimension($cur_width,$cur_height,$max_width,$max_height,$transformation,$alignment);
if($trim > 0 && $ta !== false){
$new['org_x'] += $ta['l'];
$new['org_y'] += $ta['t'];
}
// This is transparency-preserving magic!
$image_resized = imagecreatetruecolor($new['width'],$new['height']);
if(($img_data[2] == IMAGETYPE_GIF) || ($img_data[2] == IMAGETYPE_PNG)){
$tidx = imagecolortransparent($image);
$palletsize = imagecolorstotal($image);
if($tidx >= 0 && $tidx < $palletsize){
$trnprt_color = imagecolorsforindex($image, $tidx);
$tidx = imagecolorallocate($image_resized, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);
imagefill($image_resized, 0, 0, $tidx);
imagecolortransparent($image_resized, $tidx);
}elseif($img_data[2] == IMAGETYPE_PNG){
imagealphablending($image_resized, false);
$color = imagecolorallocatealpha($image_resized, 0, 0, 0, 127);
imagefill($image_resized, 0, 0, $color);
imagesavealpha($image_resized, true);
}
}
imagecopyresampled($image_resized, $image, 0, 0, $new['org_x'], $new['org_y'], $new['width'], $new['height'],$new['org_width'], $new['org_height']);
imagedestroy($image);
}else{
$image_resized = $image;
}
if($circle == '_circle'){
$image_resized = imageCircleEffect($new['width'],$new['height'],$image_resized);
}
if($interlace == '_il'){
imageinterlace($image_resized,1);
}
return $image_resized;
}
function set_dimension($imageWidth,$imageHeight,$maxWidth,$maxHeight,$transformation,$alignment){
if($transformation == 'fit' || $transformation == 'fitup'){
$maxWidth = ($maxWidth > 0) ? $maxWidth : $maxHeight*100;
$maxHeight = ($maxHeight > 0) ? $maxHeight : $maxWidth*100;
$wRatio = $imageWidth / $maxWidth;
$hRatio = $imageHeight / $maxHeight;
$maxRatio = max($wRatio, $hRatio);
if($maxRatio > 1 || $transformation == 'fitup') {
$new['width'] = $imageWidth / $maxRatio;
$new['height'] = $imageHeight / $maxRatio;
}else{
$new['width'] = $imageWidth;
$new['height'] = $imageHeight;
}
$new['org_width'] = $imageWidth;
$new['org_height'] = $imageHeight;
$new['org_x'] = 0;
$new['org_y'] = 0;
}elseif($transformation == 'square' || $transformation == 'squaredown'){
$new['width'] = ($maxWidth > 0) ? $maxWidth : $imageWidth;
$new['height'] = ($maxHeight > 0) ? $maxHeight : $imageHeight;
if($transformation == 'squaredown'){
if($imageWidth <= $new['width']){
$new['width'] = $imageWidth;
}
if($imageHeight <= $new['height']){
$new['height'] = $imageHeight;
}
}
$wRatio = $imageWidth / $maxWidth;
$hRatio = $imageHeight / $maxHeight;
$ratioComputed = $imageWidth / $imageHeight;
$cropRatioComputed = $new['width'] / $new['height'];
if ($ratioComputed < $cropRatioComputed){
$new['org_width'] = $imageWidth;
$new['org_height'] = $imageWidth/$cropRatioComputed;
$new['org_x'] = 0;
if($alignment == 't'){
$new['org_y'] = 0;
}elseif($alignment == 'b'){
$new['org_y'] = ($imageHeight - $new['org_height']);
}else{
$new['org_y'] = ($imageHeight - $new['org_height']) / 2;
}
}elseif($ratioComputed > $cropRatioComputed){
$new['org_width'] = $imageHeight*$cropRatioComputed;
$new['org_height'] = $imageHeight;
if($alignment == 'r'){
$new['org_x'] = 0;
}elseif($alignment == 'l'){
$new['org_x'] = ($imageWidth - $new['org_width']);
}else{
$new['org_x'] = ($imageWidth - $new['org_width']) / 2;
}
$new['org_y'] = 0;
}else{
$new['org_width'] = $imageWidth;
$new['org_height'] = $imageHeight;
$new['org_x'] = 0;
$new['org_y'] = 0;
}
}elseif($transformation == 'absolute'){
$new['org_width'] = $imageWidth;
$new['org_height'] = $imageHeight;
$new['width'] = ($maxWidth > 0) ? $maxWidth : $imageWidth;
$new['height'] = ($maxHeight > 0) ? $maxHeight : $imageHeight;
$new['org_x'] = 0;
$new['org_y'] = 0;
}
return $new;
}
function imageTrimmedBox($cur_width,$cur_height,$img,$t,$hex=null){
if($hex == null) $hex = imagecolorat($img, 2, 2); // 2 pixels in to avoid messy edges
$r = ($hex >> 16) & 0xFF;
$g = ($hex >> 8) & 0xFF;
$b = $hex & 0xFF;
$c = round(($r+$g+$b)/3); // average of rgb is good enough for a default
$width = $cur_width;
$height = $cur_height;
$b_top = 0;
$b_lft = 0;
$b_btm = $height - 1;
$b_rt = $width - 1;
//top
for(; $b_top < $height; ++$b_top) {
for($x = 0; $x < $width; ++$x) {
$rgb = imagecolorat($img, $x, $b_top);
$r = ($rgb >> 16) & 0xFF;
$g = ($rgb >> 8) & 0xFF;
$b = $rgb & 0xFF;
if (
($r < $c-$t || $r > $c+$t) && // red not within tolerance of trim colour
($g < $c-$t || $g > $c+$t) && // green not within tolerance of trim colour
($b < $c-$t || $b > $c+$t) // blue not within tolerance of trim colour
){
break 2;
}
}
}
// return false when all pixels are trimmed
if ($b_top == $height) return false;
// bottom
for(; $b_btm >= 0; --$b_btm) {
for($x = 0; $x < $width; ++$x) {
$rgb = imagecolorat($img, $x, $b_btm);
$r = ($rgb >> 16) & 0xFF;
$g = ($rgb >> 8) & 0xFF;
$b = $rgb & 0xFF;
if (
($r < $c-$t || $r > $c+$t) && // red not within tolerance of trim colour
($g < $c-$t || $g > $c+$t) && // green not within tolerance of trim colour
($b < $c-$t || $b > $c+$t) // blue not within tolerance of trim colour
){
break 2;
}
}
}
// left
for(; $b_lft < $width; ++$b_lft) {
for($y = $b_top; $y <= $b_btm; ++$y) {
$rgb = imagecolorat($img, $b_lft, $y);
$r = ($rgb >> 16) & 0xFF;
$g = ($rgb >> 8) & 0xFF;
$b = $rgb & 0xFF;
if (
($r < $c-$t || $r > $c+$t) && // red not within tolerance of trim colour
($g < $c-$t || $g > $c+$t) && // green not within tolerance of trim colour
($b < $c-$t || $b > $c+$t) // blue not within tolerance of trim colour
){
break 2;
}
}
}
// right
for(; $b_rt >= 0; --$b_rt) {
for($y = $b_top; $y <= $b_btm; ++$y) {
$rgb = imagecolorat($img, $b_rt, $y);
$r = ($rgb >> 16) & 0xFF;
$g = ($rgb >> 8) & 0xFF;
$b = $rgb & 0xFF;
if (
($r < $c-$t || $r > $c+$t) && // red not within tolerance of trim colour
($g < $c-$t || $g > $c+$t) && // green not within tolerance of trim colour
($b < $c-$t || $b > $c+$t) // blue not within tolerance of trim colour
){
break 2;
}
}
}
$b_btm++;
$b_rt++;
return array(
'l' => $b_lft,
't' => $b_top,
'r' => $b_rt,
'b' => $b_btm,
'w' => $b_rt - $b_lft,
'h' => $b_btm - $b_top
);
}
function imageCircleEffect($cur_width,$cur_height,$img,$hex=null){
global $img_data;
// Create a black image with a transparent ellipse, and merge with destination
$mask = imagecreatetruecolor($cur_width, $cur_height);
$maskTransparent = imagecolorallocate($mask, 255, 0, 255);
imagecolortransparent($mask, $maskTransparent);
imagefilledellipse($mask, $cur_width / 2, $cur_height / 2, $cur_width, $cur_height, $maskTransparent);
imagecopymerge($img, $mask, 0, 0, 0, 0, $cur_width, $cur_height, 100);
// Fill each corners of destination image with transparency
$dstTransparent = imagecolorallocatealpha($img, 255, 0, 255, 127);
imagefill($img, 0, 0, $dstTransparent);
imagefill($img, $cur_width - 1, 0, $dstTransparent);
imagefill($img, 0, $cur_height - 1, $dstTransparent);
imagefill($img, $cur_width - 1, $cur_height - 1, $dstTransparent);
imagedestroy($mask);
$img_data['ext'] = 'png';
$img_data['mime'] = 'image/png';
return $img;
}
function check_utf8($str){
$len = strlen($str);
for($i = 0; $i < $len; $i++){
$c = ord($str[$i]);
if($c > 128){
if(($c > 247)) return false;
elseif($c > 239) $bytes = 4;
elseif($c > 223) $bytes = 3;
elseif($c > 191) $bytes = 2;
else return false;
if(($i + $bytes) > $len) return false;
while ($bytes > 1) {
$i++;
$b = ord($str[$i]);
if($b < 128 || $b > 191) return false;
$bytes--;
}
}
}
return true;
}
function custom_base64($input){
global $img_data;
if(!empty($input)){
$return = 'data:'.$img_data['mime'];
if($img_data['mime'] != 'text/plain'){
$return .= ';base64,'.base64_encode($input);
}else{
$return .= ';Error';
}
return $return;
}else{
return;
}
}
function checkImage($filename)
{
$picDirPath = './pic/';
$datFileName = './data/' . $filename . '.dat';
$types = array('jpg', 'png', 'gif');
if (file_exists($datFileName)) {
$data = file($datFileName);
header("Location:" . $data[0]);
exit;
} else {
$fName = null;
foreach ($types as $type) {
if (file_exists($picDirPath . $filename . '.' . $type)) {
$fName = $filename . '.' . $type;
break;
}
}
if ($path) {
header("Location: pic/" . $fName);
exit;
}
}
}
function saveImage($image, $quality, $filename){
global $img_data;
switch($img_data['mime']){
case 'image/jpeg':
return imagejpeg($image, './pic/' . $filename . '.jpg', $quality) ? './pic/' . $filename . '.jpg' : false;
break;
case 'image/gif':
return imagegif($image, './pic/' . $filename . '.gif') ? './pic/' . $filename . '.gif' : false;
break;
case 'image/png':
imagesavealpha($image,true);
return imagepng($image, './pic/' . $filename . '.png') ? './pic/' . $filename . '.png' : false;
break;
}
}
if(!empty($_GET['url'])){
$h = (empty($_GET['h']) OR !ctype_digit($_GET['h'])) ? '0' : $_GET['h'];
$w = (empty($_GET['w']) OR !ctype_digit($_GET['w'])) ? '0' : $_GET['w'];
$t = (empty($_GET['t']) OR !in_array($_GET['t'],array('fit','fitup','square','squaredown','absolute'))) ? 'fit' : $_GET['t'];
$a = (empty($_GET['a']) OR !in_array($_GET['a'],array('t','b','r','l'))) ? 'c' : $_GET['a'];
$q = (empty($_GET['q']) OR !ctype_digit($_GET['q']) OR $_GET['q'] > 95 OR $_GET['q'] < 0) ? '85' : $_GET['q'];
$c = (isset($_GET['circle'])) ? '_circle' : '0';
$il = (isset($_GET['il'])) ? '_il' : '';
//Trim
if(isset($_GET['trim'])){
// if tolerance ($_GET['trim']) isn't a number between 0 - 255 use 10 as default
if(empty($_GET['trim']) || !ctype_digit($_GET['trim']) || $_GET['trim'] < 0 || $_GET['trim'] > 255){
$s = 10;
}else{
$s = (int)$_GET['trim'];
}
}else{
$s = 0;
}
$output = isset($_GET['output']) ? '_' . $_GET['output'] : '';
$filename = md5($_GET['url']) . '_' . $w . '_' . $h . '_' . $t . '_' . $a . '_' . $c . '_' . $q . $output;
checkImage($filename);
//SSL code
if(substr($_GET['url'],0,4) == 'ssl:'){
$ssl = true;
$_GET['url'] = substr($_GET['url'],4);
$parts = parse_url('https://'.$_GET['url']);
}else{
$ssl = false;
$parts = parse_url('http://'.$_GET['url']);
}
//IDN-rewriting
if(idn_to_ascii($parts['host']) == ''){
$parts['host'] = utf8_encode($parts['host']);
}
if(isset($_GET['encoding']) && $_GET['encoding'] == 'base64'){
ob_start('custom_base64');
$_GET['fnr'] = true;
}
if(!isset($parts['scheme'])){
header("HTTP/1.0 404 Not Found");
$img_data['mime'] = 'text/plain';
echo 'Error 404: Server could parse the ?url= that you were looking for, because it isn\'t a valid url.';
trigger_error('URL failed, unable to parse. URL: '.$_GET['url'],E_USER_WARNING);
die;
}
$_GET['url'] = $parts['scheme'].'://'.$parts['host'];//idn_to_ascii($parts['host']);
if(isset($parts['path'])){
$parts['path'] = (check_utf8($parts['path']) === false) ? utf8_encode($parts['path']) : $parts['path'];
$_GET['url'] .= $parts['path'];
$_GET['url'] .= isset($parts['query']) ? '?'.$parts['query'] : '';
}
$image = create_image($_GET['url']);
//Change orientation on EXIF-data
if(isset($img_data['exif'])){
if(isset($img_data['exif']['Orientation']) && !empty($img_data['exif']['Orientation'])){
switch($img_data['exif']['Orientation']){
case 8:
$image = imagerotate($image,90,0);
//Change source dimensions
$temp_w = $img_data[0];
$img_data[0] = $img_data[1];
$img_data[1] = $temp_w;
unset($temp_w);
break;
case 3:
$image = imagerotate($image,180,0);
break;
case 6:
$image = imagerotate($image,-90,0);
//Change source dimensions
$temp_w = $img_data[0];
$img_data[0] = $img_data[1];
$img_data[1] = $temp_w;
unset($temp_w);
break;
}
}
}
//Resize only when needed
if($h > 0 || $w > 0 || $s > 0 || $c == '_circle' || $il == '_il'){
$image = resize_image($image,$h,$w,$t,$a,$s,$c,$il);
}
$output_formats = array('png' => 'image/png','jpg' => 'image/jpeg','gif' => 'image/gif');
if(isset($_GET['output']) && isset($output_formats[$_GET['output']])){
$img_data['mime'] = $output_formats[$_GET['output']];
}
// header('Expires: '.gmdate("D, d M Y H:i:s", (time()+2678400)).' GMT'); //31 days
// header('Cache-Control: max-age=2678400'); //31 days
// if(isset($_GET['encoding']) && $_GET['encoding'] == 'base64'){
// header('Content-type: text/plain');
// }else{
// header('Content-type: '.$img_data['mime']);
// }
//show_image($image, $q);
if($savePath = saveImage($image, $q, $filename)) {
header("Location:" . $savePath);
}
exit;
}else{
?>
<!doctype html>
<html>
<head>
<title>Image cache & resize proxy</title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<style type="text/css">
* {
margin:0;
padding:0;
}
html, body {
width:100%;
}
body {
font-family: sans-serif;
background: #f1f3f7;
}
/*h1 {
font-size:14px;
}
h2 {
font-size:12px;
}*/
/*b {
color:#a72376;
}*/
h1, h2 {
margin-bottom: .5em;
}
/*p, hr {
font-size:12px;
margin-top:15px;
}*/
small.nl,
.example small {
display:block;
margin-top:5px;
}
hr {
clear:both;
color:#eee;
background-color:#eee;
height:1px;
border:none;
margin: 1.5em 0;
}
#c, #s {
/*font-size:13px;*/
color:#ccc;
margin:9px 6px;
float:left;
}
#s {
float:right;
}
.new {
display:block;
position:relative;
float:right;
}
a {
color:#6fa8dc;
text-decoration:none;
}
a:hover {
text-decoration:underline;
}
#content {
margin:50px auto;
width:450px;
padding:20px;
background-color:#fff;
color:#292929;
border-radius: 3px;
}
#content p {
margin-bottom: 1.5em;
}
#content ul {
margin: 1.5em 0;
font-size: 1em;
}
#content ul li {
margin: .5em 0;
margin-left: 1.2em;
}
a.uptime {
display:block;
width:100%;
margin:10px 0 -10px 0;
text-align:center;
/*font-size:10px;*/
}
.optional {
color:#aaa;
}
.example {
float:left;
width:112px;
margin:10px 0;
/*font-size:12px;*/
text-align:center;
}
.example img {
border: 1px solid #eee;
}
#mb {
margin:14px 0;
}
</style>
</head>
<body>
<div id="content">
<h1>Image <b>cache</b> & <b>resize</b> proxy</h1>
<p>Our servers resize your image, cache it worldwide, and display it.</p>
<ul>
<li>We don't support animated images (yet).</li>
<li>We do support GIF, JPEG, PNG, BMP and even transparent images!</li>
<li>Full IPv6 support<?php /*<a href="http://ipv6-test.com/validate.php?url=images.weserv.nl" rel="nofollow">serving dual stack</a>, and supporting <a href="//images.weserv.nl/?url=ipv6.google.com/logos/logo.gif">IPv6-only origin hosts</a> */ ?>.</li>
<li>SSL support, you can use HTTPS.</li>
</ul>
<?php /*<p>
<small class="sslnote">This can be very useful for embedding HTTP images on HTTPS websites. Avoid mixed
content warnings by using <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/4277688-bug-redirecting-the-browser-on-facebook-fbcdn-lin"><b>&fnr</b></a>.
HTTPS origin hosts can be used by <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/2693328-add-support-to-fetch-images-over-https">prefixing the hostname with ssl:</a>
We're part of the <a href="https://www.cloudflare.com/">CloudFlare</a> community. Images are being cached and delivered straight from <a href="https://www.cloudflare.com/network-map">23 global datacenters</a>.
This ensures the fastest load times and best performance.</small>
</p> */ ?>
<hr />
<p><strong>Requesting an image:</strong><p>
<ul>
<li><b>?url= </b>(URL encoded) link to your image, without http://</li>
<li><b>&h= </b>maximum height of image <span class="optional">(optional)</span></li>
<li><b>&w= </b>maximum width of image <span class="optional">(optional)</span></li>
</ul>
<small class="nl">Example: <img src="http://localhost/?url=www.google.nl/logos/logo.gif&h=30" /></small></p>
<hr />
<p><strong>Choose JPEG compression level:</strong><p>
<ul>
<li>
<b>&q= </b>any value between 0 and 95 <span class="optional">(optional)</span><br />
<small class="nl">This parameter is only effective for JPEG-images. If you don't specify a quality it defaults to 85.</small>
</li>
</ul>
<hr />
<p><strong>Choose transformation:</strong></p>
<ul>
<li><b>&t= </b>fit <small>(default)</small> <b>or</b> fitup <b>or</b> square <b>or</b> squaredown <b>or</b> absolute <span class="optional">(optional)</span></li>
</ul>
<p><small class="nl">Examples:</small></p>
<div class="example">
<img src="?url=www.google.nl/logos/logo.gif&h=45" alt="" />
<small>Original</small>
</div>
<div class="example">
<img src="?url=www.google.nl/logos/logo.gif&h=45&w=45&t=fit" alt="" id="mb" />
<small>h=45 w=45<br />t=fit</small>
</div>
<div class="example">
<img src="?url=www.google.nl/logos/logo.gif&h=45&w=45&t=square" alt="" />
<small>h=45 w=45<br />t=square</small>
</div>
<div class="example">
<img src="?url=www.google.nl/logos/logo.gif&h=45&w=45&t=absolute" alt="" />
<small>h=45 w=45<br />t=absolute</small>
</div>
<p><small class="nl">t=fitup is the same as t=fit, but allows overscaling of the original image.<br />t=squaredown is the same as t=square, but won't upscale the original image.</small></p>
<hr />
<p><strong>Choose image alignment:</strong></p>
<ul>
<li>
<b>&a= </b>t <small>(top)</small> <b>or</b> b <small>(bottom)</small> <b>or</b> l <small>(left)</small> <b>or</b> r <small>(right)</small> <span class="optional">(optional)</span><br />
<small class="nl">Only works when t=square, and the image needs to be cropped in height (t or b) or width (l or r). <?php /* For more information, please see the suggestion on our UserVoice forum: <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/2570350-aligning">#2570350 - Aligning</a>*/ ?></small>
</li>
</ul>
<hr />
<p><strong>Trim borders from image:</strong></p>
<ul>
<li>
<b>&trim= </b>sensitivity between 0 and 255 <span class="optional">(optional)</span><br /><small class="nl">You also can specify just <b>&trim</b>, which defaults to a sensitivity of 10.
<?php /* <br />More info: <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/3083264-able-to-remove-black-white-whitespace">#3083264 - Able to remoce black/white whitespace</a> */ ?>
</small>
</li>
</ul>
<hr />
<p><strong>Circle crop image:</strong></p>
<ul>
<li>
<b>&circle </b> <span class="optional">(optional)</span><br /><small class="nl">Crops the image to a circle.
<?php /* <br />More info: <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/3910149-add-circle-effect-to-photos">#3910149 - Add circle effect to photos</a>*/ ?>
</small>
</li>
</ul>
<hr />
<p><strong>Interlacing and progressive rendering:</strong></p>
<ul>
<li>
<b>&il </b> <span class="optional">(optional)</span><br /><small class="nl">Adds interlacing to GIF and PNG. JPEG's become progressive.
<?php /* <br />More info: <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/3998911-add-parameter-to-use-progressive-jpegs">#3998911 - Add parameter to use progressive JPEGs</a>*/ ?>
</small>
</li>
</ul>
<hr />
<p><strong>Return the image as base64-encoded string:</strong> <?php /* <b class="new">New!</b> */ ?></p>
<ul>
<li>
<b>&encoding= </b>base64 <span class="optional">(optional)</span><br /><small class="nl">Encodes the image to be used directly in the src= of the <img>-tag.
<?php /* <br />More info: <a href="//http://imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/4522336-return-image-base64-encoded">#4522336 - Return image base64 encoded</a>*/ ?>
</small>
</li>
</ul>
<hr />
<p><strong>Choose the output format:</strong> <?php /* <b class="new">New!</b> */ ?></p>
<ul>
<li>
<b>&output= </b>png <b>or</b> jpg <b>or</b> gif <span class="optional">(optional)</span><br /><small class="nl">Choose how the proxy outputs the thumbnail, if none is given, it will honor the origin image format. <?php /* More info: <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/5097964-format-conversion">#5097964 - Format conversion</a>*/ ?>
</small>
</li>
</ul>
</div>
</body>
</html>
<?php
}
?>