forked from weserv/images
/
index.php
876 lines (805 loc) · 41.5 KB
/
index.php
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<?php
/**
* @author Andries Louw Wolthuizen
* @author Kleis Auke Wolthuizen
* @site images.weserv.nl
* @copyright 2016
**/
error_reporting(E_ALL);
set_time_limit(180);
ini_set('display_errors',0);
$img_data = '';
function download_file($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/5.6; +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 $img_data,$parts;
$path = str_replace(' ','%20',$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;
}
$add_msg = '';
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:
$img_data['exif'] = @exif_read_data($fname);
$gd_stream = imagecreatefromjpeg($fname);
break;
case IMAGETYPE_GIF:
$gd_stream = imagecreatefromgif($fname);
break;
case IMAGETYPE_PNG:
$gd_stream = imagecreatefrompng($fname);
break;
}
}else{
if(strpos(file_get_contents($fname),'_Incapsula_Resource') !== false){ $add_msg .= 'Warning: '.$parts['host'].' is hosted by a CDN (Incapsula) that is returning CAPTCHAs instead of images.<br />'.PHP_EOL; }
$im = (substr($path,-4,4) == '.ico') ? new Imagick('ico:'.$fname.'[0]') : new Imagick($fname.'[0]');
$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['mime'] = 'image/png';
$gd_stream = imagecreatefrompng($fname);
}
if($gd_stream === false){
unlink($fname);
throw new Exception('This is no valid image format!');
}
unlink($fname);
return $gd_stream;
}catch(Exception $e){
@unlink($fname);
$error_msg = $e->getMessage();
if(strpos($error_msg,'no decode delegate for this image format') !== false){
$error_msg = 'This is no valid image format!';
}elseif(strpos($error_msg,'unable to open image') !== false){
$error_msg = 'Unable to open this file!';
}
header("HTTP/1.0 404 Not Found");
$img_data['mime'] = 'text/plain';
echo $add_msg.'Error 404: Server could parse the ?url= that you were looking for, because it isn\'t a valid (supported) image, error: '.$error_msg;
if(isset($_GET['detail'])){ echo '<small><br /><br />Debug: <br />Path: '.$path.'<br />Fname: '.$fname.'</small>'; }
echo '<small><br /><br />Also, if possible, please replace any occurences of of + in the ?url= with %2B (see <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/2586863-bug">+ bug</a>)</small>';
if($error_msg != 'This is no valid image format!' && $error_msg != 'Unable to open this file!'){
trigger_error('URL failed. Message: '.$error_msg.' 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 || $trim > 0 || isset($_GET['crop'])){
$new = set_dimension($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){
global $_GET;
if(isset($_GET['crop'])){ //V2 API
$crop_arr = explode(',',$_GET['crop']);
$new['org_width'] = $crop_arr[0];
$new['org_height'] = $crop_arr[1];
$new['width'] = $crop_arr[0];
$new['height'] = $crop_arr[1];
$new['org_x'] = $crop_arr[2];
$new['org_y'] = $crop_arr[3];
}elseif($transformation == 'fit' || $transformation == 'fitup'){
if($maxWidth < 1 && $maxHeight < 1){
$maxWidth = $imageWidth;
$maxHeight = $imageHeight;
}
$maxWidth = ($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['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 $return;
}else{
return;
}
}
if(!empty($_GET['url'])){
//Translations from V2 API to V1 parameters - Needed until code refresh
if(isset($_GET['a'])){
if(strpos($_GET['a'],'top') !== false){ $_GET['a'] = 't'; }
if(strpos($_GET['a'],'bottom') !== false){ $_GET['a'] = 'b'; }
if(strpos($_GET['a'],'left') !== false){ $_GET['a'] = 'l'; }
if(strpos($_GET['a'],'right') !== false){ $_GET['a'] = 'r'; }
}
if(isset($_GET['shape']) && $_GET['shape'] == 'circle'){
$_GET['circle'] = true;
}
//End of translations
$h = (empty($_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' : '';
$il = (isset($_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{
$s = 0;
}
//SSL code
if(substr($_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']) && $_GET['encoding'] == 'base64'){
ob_start('custom_base64');
}
if(!isset($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'] = $parts['scheme'].'://'.idn_to_ascii($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' || $il == '_il' || isset($_GET['crop'])){
$image = resize_image($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);
exit;
}else{
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"/>
<title>Image cache & resize proxy</title>
<link rel="icon" type="image/x-icon" href="favicon.ico"/>
<link href="//static.weserv.nl/images.css" type="text/css" rel="stylesheet"/>
<!--[if lte IE 9]><script src="//static.weserv.nl/html5shiv-printshiv.min.js" type="text/javascript"></script><![endif]-->
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.min.js" type="text/javascript"></script>
<script src="//static.weserv.nl/bootstrap.min.js" type="text/javascript"></script>
</head>
<body data-spy="scroll" data-target=".scrollspy">
<nav id="sidebar">
<div id="header-wrapper">
<div id="header">
<a id="logo" href="//images.weserv.nl/">
<div id="weserv-logo">Images.<strong>weserv</strong>.nl</div>
<span>Image cache & resize proxy</span>
</a>
</div>
</div>
<div class="scrollbar-inner">
<div class="scrollspy">
<ul id="nav" class="nav topics" data-spy="affix">
<li class="dd-item active"><a href="#image-api" class="cen"><span>API 2 - RBX, FR</span></a>
<ul class="nav inner">
<li class="dd-item"><a href="#deprecated"><span>Deprecated</span></a></li>
<li class="dd-item"><a href="#quick-reference"><span>Quick reference</span></a></li>
<li class="dd-item"><a href="#size"><span>Size</span></a></li>
<li class="dd-item"><a href="#trans"><span>Transformation</span></a></li>
<li class="dd-item"><a href="#crop"><span>Crop position</span></a></li>
<li class="dd-item"><a href="#shape"><span>Shape</span></a></li>
<li class="dd-item"><a href="#encoding"><span>Encoding</span></a></li>
</ul>
</li>
</ul>
<br />
<section id="footer">
<p><a href="https://github.com/andrieslouw/imagesweserv">Source code available on GitHub</a><br /><a href="//getgrav.org">Design inspired by Grav</a></p>
</section>
</div>
</div>
</nav>
<section id="body">
<div class="highlightable">
<div id="body-inner">
<section id="image-api" class="goto">
<p>Images.<b>weserv</b>.nl is an image <b>cache</b> & <b>resize</b> proxy. 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, XBM, WebP and other filetypes!</li>
<li>We do support transparent images.</li>
<li>We do support IPv6, <a href="http://ipv6-test.com/validate.php?url=images.weserv.nl" rel="nofollow">serving dual stack</a>, and supporting <a href="https://images.weserv.nl/?url=ipv6.google.com/logos/logo.gif">IPv6-only origin hosts</a>.</li>
<li>We do support SSL, you can use <a href="https://images.weserv.nl/"><b>https</b>://images.weserv.nl/</a>.
<br /><small class="sslnote">This can be very useful for embedding HTTP images on HTTPS websites. HTTPS origin hosts can be used by <a href="https://imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/2693328-add-support-to-fetch-images-over-https">prefixing the hostname with ssl:</a></small></li>
</ul>
<p>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">70+ global datacenters</a>. This ensures the fastest load times and best performance. On average, we process 450 000 000 images per month, which generates around 16TB of outbound traffic.</p>
<p>Requesting an image:</p>
<ul>
<li><code>?url=</code> (URL encoded) link to your image, without http://</li>
</ul>
</section>
<section id="deprecated" class="goto">
<h1>Deprecated</h1>
<div class="notices warning">
<p>In January 2016 we introduced Version 2 of the Images.weserv.nl API. To make room for new improvements some parameters will be changed in the future.<br/>We also kept Version 1 (which is in place since December 2010) of the API in place so as not to break anyone's apps. Please update your code to use the changed API parameters.</p>
</div>
<h2 id="deprecated-values">Deprecated URL-parameter values</h2>
<table>
<thead>
<tr>
<th>GET</th>
<th>Value</th>
<th>Use instead</th>
<th> </th>
</tr>
</thead>
<tbody>
<tr>
<td><code>a</code></td>
<td><code style="color:red;">=t</code></td>
<td><code style="color:green;">=top</code></td>
<td><a href="#crop-position">info</a></td>
</tr>
<tr>
<td><code>a</code></td>
<td><code style="color:red;">=b</code></td>
<td><code style="color:green;">=bottom</code></td>
<td><a href="#crop-position">info</a></td>
</tr>
<tr>
<td><code>a</code></td>
<td><code style="color:red;">=l</code></td>
<td><code style="color:green;">=left</code></td>
<td><a href="#crop-position">info</a></td>
</tr>
<tr>
<td><code>a</code></td>
<td><code style="color:red;">=r</code></td>
<td><code style="color:green;">=right</code></td>
<td><a href="#crop-position">info</a></td>
</tr>
</tbody>
</table>
<h2 id="deprecated-functions">Deprecated URL-parameters</h2>
<table>
<thead>
<tr>
<th>GET</th>
<th>Use instead</th>
<th> </th>
</tr>
</thead>
<tbody>
<tr>
<td><code style="color:red;">circle</code></td>
<td><code style="color:green;">shape=circle</code></td>
<td><a href="#shape">info</a></td>
</tr>
</tbody>
</table>
</section>
<section id="quick-reference" class="goto">
<h1>Quick reference</h1>
<table>
<thead>
<tr>
<th>Name</th>
<th>GET</th>
<th>Description</th>
<th> </th>
</tr>
</thead>
<tbody>
<tr>
<td>Width</td>
<td><code>w</code></td>
<td>Sets the width of the image, in pixels.</td>
<td><a href="#width-w">info</a></td>
</tr>
<tr>
<td>Height</td>
<td><code>h</code></td>
<td>Sets the height of the image, in pixels.</td>
<td><a href="#height-h">info</a></td>
</tr>
<tr>
<td>Transformation</td>
<td><code>t</code></td>
<td>Sets how the image is fitted to its target dimensions.</td>
<td><a href="#trans-fit">info</a></td>
</tr>
<tr>
<td>Crop</td>
<td><code>crop</code></td>
<td>Crops the image to specific dimensions.</td>
<td><a href="#crop-crop">info</a></td>
</tr>
<tr>
<td>Crop alignment</td>
<td><code>a</code></td>
<td>Sets how the crop is aligned.</td>
<td><a href="#crop-position">info</a></td>
</tr>
<tr>
<td>Shape</td>
<td><code>shape</code></td>
<td>Crops the image to a specific shape.</td>
<td><a href="#shape-shape">info</a></td>
</tr>
<tr>
<td>Quality</td>
<td><code>q</code></td>
<td>Defines the quality of the image.</td>
<td><a href="#quality-q">info</a></td>
</tr>
<tr>
<td>Output</td>
<td><code>output</code></td>
<td>Encodes the image to a specific format.</td>
<td><a href="#output-output">info</a></td>
</tr>
<tr>
<td>Interlace / progressive</td>
<td><code>il</code></td>
<td>Adds interlacing to GIF and PNG. JPEG's become progressive.</td>
<td><a href="#interlace-progressive-il">info</a></td>
</tr>
<tr>
<td>Base64 (data URL)</td>
<td><code>encoding</code></td>
<td>Encodes the image to be used directly in the src= of the <img>-tag.</td>
<td><a href="#base64-encoding">info</a></td>
</tr>
</tbody>
</table>
</section>
<section id="size" class="goto">
<h1>Size</h1>
<h3 id="width-w">Width <code>&w=</code></h3>
<p>Sets the width of the image, in pixels.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300"></code></pre>
<a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300"/></a>
<h3 id="height-h">Height <code>&h=</code></h3>
<p>Sets the height of the image, in pixels.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&h=300"></code></pre>
<a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&h=300"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&h=300"/></a>
</section>
<section id="trans" class="goto">
<h1>Transformation <code>&t=</code></h1>
<p>Sets how the image is fitted to its target dimensions. Below are a couple of examples.</p>
<h3 id="trans-fit">Fit <code>&t=fit</code></h3>
<p>Default. Resizes the image to fit within the width and height boundaries without cropping, distorting or altering the aspect ratio. <b>Will not</b> oversample the image if the requested size is larger than that of the original.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=fit"></code></pre>
<a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=fit"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=fit"/></a>
<h3 id="trans-fitup">Fitup <code>&t=fitup</code></h3>
<p>Resizes the image to fit within the width and height boundaries without cropping, distorting or altering the aspect ratio. <b>Will</b> increase the size of the image if it is smaller than the output size.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=fitup"></code></pre>
<h3 id="trans-square">Square <code>&t=square</code></h3>
<p>Resizes the image to fill the width and height boundaries and crops any excess image data. The resulting image will match the width and height constraints without distorting the image. <b>Will</b> increase the size of the image if it is smaller than the output size.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=square"></code></pre>
<a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=square"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=square"/></a>
<h3 id="trans-squaredown">Squaredown <code>&t=squaredown</code></h3>
<p>Resizes the image to fill the width and height boundaries and crops any excess image data. The resulting image will match the width and height constraints without distorting the image. <b>Will not</b> oversample the image if the requested size is larger than that of the original.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=squaredown"></code></pre>
<h3 id="trans-absolute">Absolute <code>&t=absolute</code></h3>
<p>Stretches the image to fit the constraining dimensions exactly. The resulting image will fill the dimensions, and will not maintain the aspect ratio of the input image.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=absolute"></code></pre>
<a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=absolute"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=absolute"/></a>
</section>
<section id="crop" class="goto">
<h1 id="crop-position">Crop position <code>&a=</code></h1>
<p>You can also set where the image is cropped by adding a crop position. Only works when <code>t=square</code>. Accepts <code>top</code>, <code>left</code>, <code>center</code>, <code>right</code> or <code>bottom</code>. Default is <code>center</code>. 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>.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=square&a=top"></code></pre>
<a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=square&a=top"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=square&a=top"/></a>
<h3 id="crop-crop">Manual crop <code>&crop=</code></h3>
<p>Crops the image to specific dimensions prior to any other resize operations. Required format: <code>width,height,x,y</code>.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&crop=300,300,680,500"></code></pre>
<a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&crop=300,300,680,500"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&crop=300,300,680,500"/></a>
</section>
<section id="shape" class="goto">
<h1>Shape</h1>
<h3 id="shape-shape">Shape <code>&shape=</code></h3>
<p>Crops the image to a specific shape. Currently only supporting <code>&shape=circle</code>. 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>.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=square&shape=circle"></code></pre>
<a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=square&shape=circle"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&h=300&t=square&shape=circle"/></a>
<h3 id="trim-trim">Trim <code>&trim=</code></h3>
<p>Trim away blank image space on edges. Use values between <code>0</code> and <code>255</code> to define a tolerance level to trim away similar color values. You also can specify just &trim, which defaults to a tolerance level of 10.</p><p>More info: <a href="https://imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/3083264-able-to-remove-black-white-whitespace">#3083264 - Able to remove black/white whitespace</a></small></p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=ssl:upload.wikimedia.org/wikipedia/commons/4/47/PNG_transparency_demonstration_1.png&w=300&trim"></code></pre>
<a class="trimedges" href="//images.weserv.nl/?url=ssl:upload.wikimedia.org/wikipedia/commons/4/47/PNG_transparency_demonstration_1.png&w=300&trim"><img src="//images.weserv.nl/?url=ssl:upload.wikimedia.org/wikipedia/commons/4/47/PNG_transparency_demonstration_1.png&w=300&trim"/></a>
</section>
<section id="encoding" class="goto">
<h1>Encoding</h1>
<h3 id="quality-q">Quality <code>&q=</code></h3>
<p>Defines the quality of the image. Use values between <code>0</code> and <code>100</code>. Defaults to <code>85</code>. Only relevant if the format is set to <code>jpg</code>.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&q=20"></code></pre>
<a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&q=20"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&q=20"/></a>
<h3 id="output-output">Output <code>&output=</code></h3>
<p>Encodes the image to a specific format. Accepts <code>jpg</code>, <code>png</code> or <code>gif</code>. If none is given, it will honor the origin image format.</p><p>More info: <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/5097964-format-conversion">#5097964 - Format conversion</a></small>.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&output=gif"></code></pre>
<a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&output=gif"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&output=gif"/></a>
<h3 id="interlace-progressive-il">Interlace / progressive <code>&il</code></h3>
<p>Adds interlacing to GIF and PNG. JPEG's become progressive.</p><p>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>.</p>
<pre><code class="language-html"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&il"></code></pre>
<a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&il"><img src="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&w=300&il"/></a>
<h3 id="base64-encoding">Base64 (data URL) <code>&encoding=base64</code></h3>
<p>Encodes the image to be used directly in the src= of the <code><img></code>-tag. <a href="//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&crop=100,100,680,500&encoding=base64">Use this link to see the output result</a>.</p><p>More info: <a href="//imagesweserv.uservoice.com/forums/144259-images-weserv-nl-general/suggestions/4522336-return-image-base64-encoded">#4522336 - Return image base64 encoded</a></small>.</p>
<pre><code>//images.weserv.nl/?url=rbx.weserv.nl/lichtenstein.jpg&crop=100,100,680,500&encoding=base64</code></pre>
</section>
</div>
</div>
</section>
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