prepare to tag v0.7.19

image](http://www.cs.cmu.edu/~chuck/lennapg/) as tif and created a png,
jpeg and webp version using Imagick convert `convert lena.tif
lena.{png,jpg,webp}`.

CImage.php

@@ -155,6 +155,13 @@ class CImage
 
 
 
+    /**
+     * Do lossy output using external postprocessing tools.
+     */
+    private $lossy = null;
+
+
+
     /**
      * Verbose mode to print out a trace and display the created image
      */
@@ -190,7 +197,15 @@ class CImage
 
 
     /**
-     * Path to command for filter optimize, for example optipng or null.
+     * Path to command for lossy optimize, for example pngquant.
+     */
+    private $pngLossy;
+    private $pngLossyCmd;
+
+
+
+    /**
+     * Path to command for filter optimize, for example optipng.
      */
     private $pngFilter;
     private $pngFilterCmd;
@@ -198,7 +213,7 @@ class CImage
 
 
     /**
-     * Path to command for deflate optimize, for example pngout or null.
+     * Path to command for deflate optimize, for example pngout.
      */
     private $pngDeflate;
     private $pngDeflateCmd;
@@ -640,7 +655,7 @@ class CImage
      */
     private function checkFileExtension($extension)
     {
-        $valid = array('jpg', 'jpeg', 'png', 'gif');
+        $valid = array('jpg', 'jpeg', 'png', 'gif', 'webp');
 
         in_array(strtolower($extension), $valid)
             or $this->raiseError('Not a valid file extension.');
@@ -663,7 +678,7 @@ class CImage
 
         if ($extension == 'jpeg') {
                 $extension = 'jpg';
-            }
+        }
 
         return $extension;
     }
@@ -827,6 +842,9 @@ class CImage
             // Output format
             'outputFormat' => null,
             'dpr'          => 1,
+
+            // Postprocessing using external tools
+            'lossy' => null,
         );
 
         // Convert crop settings from string to array
@@ -941,17 +959,34 @@ class CImage
         is_readable($file)
             or $this->raiseError('Image file does not exist.');
 
-        // Get details on image
-        $info = list($this->width, $this->height, $this->fileType, $this->attr) = getimagesize($file);
+        $info = list($this->width, $this->height, $this->fileType) = getimagesize($file);
         if (empty($info)) {
-            throw new Exception("The file doesn't seem to be a valid image.");
+            // To support webp
+            $this->fileType = false;
+            if (function_exists("exif_imagetype")) {
+                $this->fileType = exif_imagetype($file);
+                if ($this->fileType === false) {
+                    if (function_exists("imagecreatefromwebp")) {
+                        $webp = imagecreatefromwebp($file);
+                        if ($webp !== false) {
+                            $this->width  = imagesx($webp);
+                            $this->height = imagesy($webp);
+                            $this->fileType = IMG_WEBP;
+                        }
+                    }
+                }
+            }
+        }
+
+        if (!$this->fileType) {
+            throw new Exception("Loading image details, the file doesn't seem to be a valid image.");
         }
 
         if ($this->verbose) {
             $this->log("Loading image details for: {$file}");
             $this->log(" Image width x height (type): {$this->width} x {$this->height} ({$this->fileType}).");
             $this->log(" Image filesize: " . filesize($file) . " bytes.");
-            $this->log(" Image mimetype: " . image_type_to_mime_type($this->fileType));
+            $this->log(" Image mimetype: " . $this->getMimeType());
         }
 
         return $this;
@@ -959,6 +994,23 @@ class CImage
 
 
 
+    /**
+     * Get mime type for image type.
+     *
+     * @return $this
+     * @throws Exception
+     */
+    protected function getMimeType()
+    {
+        if ($this->fileType === IMG_WEBP) {
+            return "image/webp";
+        }
+
+        return image_type_to_mime_type($this->fileType);
+    }
+
+
+
     /**
      * Init new width and height and do some sanity checks on constraints, before any
      * processing can be done.
@@ -1313,6 +1365,7 @@ class CImage
             && !$this->autoRotate
             && !$this->bgColor
             && ($this->upscale === self::UPSCALE_DEFAULT)
+            && !$this->lossy
         ) {
             $this->log("Using original image.");
             $this->output($this->pathToImage);
@@ -1346,6 +1399,7 @@ class CImage
         $compress     = $this->compress     ? "_co{$this->compress}"     : null;
         $rotateBefore = $this->rotateBefore ? "_rb{$this->rotateBefore}" : null;
         $rotateAfter  = $this->rotateAfter  ? "_ra{$this->rotateAfter}"  : null;
+        $lossy        = $this->lossy        ? "_l"                       : null;
 
         $saveAs = $this->normalizeFileExtension();
         $saveAs = $saveAs ? "_$saveAs" : null;
@@ -1412,7 +1466,7 @@ class CImage
             . $quality . $filters . $sharpen . $emboss . $blur . $palette
             . $optimize . $compress
             . $scale . $rotateBefore . $rotateAfter . $autoRotate . $bgColor
-            . $convolve . $copyStrat . $saveAs;
+            . $convolve . $copyStrat . $lossy . $saveAs;
 
         return $this->setTarget($file, $base);
     }
@@ -1470,9 +1524,14 @@ class CImage
             $this->setSource($src, $dir);
         }
 
-        $this->loadImageDetails($this->pathToImage);
+        $this->loadImageDetails();
 
-        $this->image = imagecreatefromstring(file_get_contents($this->pathToImage));
+        if ($this->fileType === IMG_WEBP) {
+            $this->image = imagecreatefromwebp($this->pathToImage);
+        } else {
+            $imageAsString = file_get_contents($this->pathToImage);
+            $this->image = imagecreatefromstring($imageAsString);
+        }
         if ($this->image === false) {
             throw new Exception("Could not load image.");
         }
@@ -2306,6 +2365,14 @@ class CImage
             $this->jpegOptimizeCmd = null;
         }
 
+        if (array_key_exists("png_lossy", $options) 
+            && $options['png_lossy'] !== false) {
+            $this->pngLossy = $options['png_lossy'];
+            $this->pngLossyCmd = $options['png_lossy_cmd'];
+        } else {
+            $this->pngLossyCmd = null;
+        }
+
         if (isset($options['png_filter']) && $options['png_filter']) {
             $this->pngFilterCmd = $options['png_filter_cmd'];
         } else {
@@ -2333,9 +2400,11 @@ class CImage
         // switch on mimetype
         if (isset($this->extension)) {
             return strtolower($this->extension);
-        } else {
-            return substr(image_type_to_extension($this->fileType), 1);
+        } elseif ($this->fileType === IMG_WEBP) {
+            return "webp";
         }
+
+        return substr(image_type_to_extension($this->fileType), 1);
     }
 
 
@@ -2391,6 +2460,11 @@ class CImage
                 imagegif($this->image, $this->cacheFileName);
                 break;
 
+            case 'webp':
+                $this->Log("Saving image as WEBP to cache using quality = {$this->quality}.");
+                imagewebp($this->image, $this->cacheFileName, $this->quality);
+                break;
+
             case 'png':
             default:
                 $this->Log("Saving image as PNG to cache using compression = {$this->compress}.");
@@ -2400,6 +2474,24 @@ class CImage
                 imagesavealpha($this->image, true);
                 imagepng($this->image, $this->cacheFileName, $this->compress);
 
+                // Use external program to process lossy PNG, if defined
+                $lossyEnabled = $this->pngLossy === true;
+                $lossySoftEnabled = $this->pngLossy === null;
+                $lossyActiveEnabled = $this->lossy === true;
+                if ($lossyEnabled || ($lossySoftEnabled && $lossyActiveEnabled)) {
+                    if ($this->verbose) {
+                        clearstatcache();
+                        $this->log("Lossy enabled: $lossyEnabled");
+                        $this->log("Lossy soft enabled: $lossySoftEnabled");
+                        $this->Log("Filesize before lossy optimize: " . filesize($this->cacheFileName) . " bytes.");
+                    }
+                    $res = array();
+                    $cmd = $this->pngLossyCmd . " $this->cacheFileName $this->cacheFileName";
+                    exec($cmd, $res);
+                    $this->Log($cmd);
+                    $this->Log($res);
+                }
+
                 // Use external program to filter PNG, if defined
                 if ($this->pngFilterCmd) {
                     if ($this->verbose) {
@@ -2579,6 +2671,7 @@ class CImage
             $format = $this->outputFormat;
         }
 
+        $this->log("### Output");
         $this->log("Output format is: $format");
 
         if (!$this->verbose && $format == 'json') {
@@ -2612,7 +2705,8 @@ class CImage
             $this->fastTrackCache->addHeader($header);
         }
 
-        if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == $lastModified) {
+        if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])
+            && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == $lastModified) {
 
             if ($this->verbose) {
                 $this->log("304 not modified");
@@ -2627,10 +2721,8 @@ class CImage
 
         } else {
 
-            // Get details on image
-            $info = getimagesize($file);
-            !empty($info) or $this->raiseError("The file doesn't seem to be an image.");
-            $mime = $info['mime'];
+            $this->loadImageDetails($file);
+            $mime = $this->getMimeType();
             $size = filesize($file);
 
             if ($this->verbose) {
@@ -2691,7 +2783,7 @@ class CImage
         $this->load($file);
 
         $details['filename']    = basename($file);
-        $details['mimeType']    = image_type_to_mime_type($this->fileType);
+        $details['mimeType']    = $this->getMimeType($this->fileType);
         $details['width']       = $this->width;
         $details['height']      = $this->height;
         $details['aspectRatio'] = round($this->width / $this->height, 3);
@@ -2793,6 +2885,7 @@ class CImage
     private function verboseOutput()
     {
         $log = null;
+        $this->log("### Summary of verbose log");
         $this->log("As JSON: \n" . $this->json());
         $this->log("Memory peak: " . round(memory_get_peak_usage() /1024/1024) . "M");
         $this->log("Memory limit: " . ini_get('memory_limit'));

README.md

@@ -49,14 +49,14 @@ There are several ways of installing. You either install the whole project which
 
 The [sourcode is available on GitHub](https://github.com/mosbth/cimage). Clone, fork or [download as zip](https://github.com/mosbth/cimage/archive/master.zip). 
 
-**Latest stable version is v0.7.13 released 2016-08-08.**
+**Latest stable version is v0.7.18 released 2016-08-09.**
 
 I prefer cloning like this. Do switch to the latest stable version.
 
 ```bash
 git clone git://github.com/mosbth/cimage.git
 cd cimage
-git checkout v0.7.13
+git checkout v0.7.18
 ```
 
 Make the cache-directory writable by the webserver.
@@ -79,7 +79,7 @@ There are some all-included bundles of `img.php` that can be downloaded and used
 Dowload the version of your choice like this.
 
 ```bash
-wget https://raw.githubusercontent.com/mosbth/cimage/v0.7.13/webroot/imgp.php
+wget https://raw.githubusercontent.com/mosbth/cimage/v0.7.18/webroot/imgp.php
 ```
 
 Open up the file in your editor and edit the array `$config`. Ensure that the paths to the image directory and the cache directory matches your environment, or create an own config-file for the script.

REVISION.md

@@ -5,6 +5,48 @@ Revision history
 [![Build Status](https://scrutinizer-ci.com/g/mosbth/cimage/badges/build.png?b=master)](https://scrutinizer-ci.com/g/mosbth/cimage/build-status/master)
 
 
+v0.7.19 (2017-03-31)
+-------------------------------------
+
+* Move exception handler from functions.php to img.php.
+* Correct XSS injection in `check_system.php`.
+* Composer suggests ext-imagick and ext-curl.
+
+
+v0.7.18 (2016-08-09)
+-------------------------------------
+
+* Made `&lossless` a requirement to not use the original image.
+
+
+v0.7.17 (2016-08-09)
+-------------------------------------
+
+* Made `&lossless` part of the generated cache filename.
+
+
+v0.7.16 (2016-08-09)
+-------------------------------------
+
+* Fix default mode to be production.
+* Added pngquant as extra postprocessing utility for PNG-images, #154.
+* Bug `&status` wrong variable name for fast track cache.
+
+
+v0.7.15 (2016-08-09)
+-------------------------------------
+
+* Added the [Lenna/Lena sample image](http://www.cs.cmu.edu/~chuck/lennapg/) as tif and created a png, jpeg and webp version using Imagick convert `convert lena.tif lena.{png,jpg,webp}`, #152.
+* Limited and basic support for WEBP format, se #132.
+
+
+v0.7.14 (2016-08-08)
+-------------------------------------
+
+* Re-add removed cache directory.
+* Make fast track cache disabled by default in the config file.
+
+
 v0.7.13 (2016-08-08)
 -------------------------------------
 

cache/.gitignore

@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore

composer.json

@@ -22,7 +22,9 @@
         "ext-gd": "*"
     },
     "suggest": {
-        "ext-exif": "*"
+        "ext-exif": "*",
+        "ext-curl": "*",
+        "ext-imagick": "*"
     },
     "autoload": {
        "files": [

defines.php

@@ -1,6 +1,11 @@
 <?php
 // Version of cimage and img.php
-define("CIMAGE_VERSION", "v0.7.13 (2016-08-08)");
+define("CIMAGE_VERSION", "v0.7.19 (2017-03-31)");
 
 // For CRemoteImage
 define("CIMAGE_USER_AGENT", "CImage/" . CIMAGE_VERSION);
+
+// Image type IMG_WEBP is only defined from 5.6.25
+if (!defined("IMG_WEBP")) {
+    define("IMG_WEBP", -1);
+}

functions.php

@@ -67,22 +67,6 @@ function errorPage($msg, $type = 500)
 
 
 
-/**
- * Custom exception handler.
- */
-set_exception_handler(function ($exception) {
-    errorPage(
-        "<p><b>img.php: Uncaught exception:</b> <p>"
-        . $exception->getMessage()
-        . "</p><pre>"
-        . $exception->getTraceAsString()
-        . "</pre>",
-        500
-    );
-});
-
-
-
 /**
  * Get input from query string or return default value if not set.
  *
@@ -163,3 +147,24 @@ function verbose($msg = null)
 
     $log[] = $msg;
 }
+
+
+
+/**
+ * Log when verbose mode, when used without argument it returns the result.
+ *
+ * @param string $msg to log.
+ *
+ * @return void or array.
+ */
+function checkExternalCommand($what, $enabled, $commandString)
+{
+    $no = $enabled ? null : 'NOT';
+    $text = "Post processing $what is $no enabled.<br>";
+
+    list($command) = explode(" ", $commandString);
+    $no = is_executable($command) ? null : 'NOT';
+    $text .= "The command for $what is $no an executable.<br>";
+
+    return $text;
+}

webroot/check_system.php

@@ -2,7 +2,7 @@
 
 echo 'Current PHP version: ' . phpversion() . '<br><br>';
 
-echo 'Running on: ' . $_SERVER['SERVER_SOFTWARE'] . '<br><br>';
+echo 'Running on: ' . htmlentities($_SERVER['SERVER_SOFTWARE']) . '<br><br>';
 
 $no = extension_loaded('exif') ? null : 'NOT';
 echo "Extension exif is $no loaded.<br>";
@@ -15,13 +15,15 @@ echo "Extension imagick is $no loaded.<br>";
 
 $no = extension_loaded('gd') ? null : 'NOT';
 echo "Extension gd is $no loaded.<br>";
-
 if (!$no) {
     echo "<pre>", var_dump(gd_info()), "</pre>";
 }
 
 echo "<strong>Checking path for postprocessing tools</strong>";
 
+echo "<br>pngquant: ";
+system("which pngquant");
+
 echo "<br>optipng: ";
 system("which optipng");
 

webroot/img.php

@@ -8,6 +8,22 @@
  *
  */
 
+/**
+ * Custom exception handler.
+ */
+set_exception_handler(function ($exception) {
+    errorPage(
+        "<p><b>img.php: Uncaught exception:</b> <p>"
+        . $exception->getMessage()
+        . "</p><pre>"
+        . $exception->getTraceAsString()
+        . "</pre>",
+        500
+    );
+});
+
+
+
 /**
  * Get configuration options from file, if the file exists, else use $config
  * if its defined or create an empty $config.
@@ -840,6 +856,9 @@ verbose("upscale = $upscale");
  * Get details for post processing
  */
 $postProcessing = getConfig('postprocessing', array(
+    'png_lossy'        => false,
+    'png_lossy_cmd'    => '/usr/local/bin/pngquant --force --output',
+
     'png_filter'        => false,
     'png_filter_cmd'    => '/usr/local/bin/optipng -q',
 
@@ -852,6 +871,15 @@ $postProcessing = getConfig('postprocessing', array(
 
 
 
+/**
+ * lossy - Do lossy postprocessing, if available.
+ */
+$lossy = getDefined(array('lossy'), true, null);
+
+verbose("lossy = $lossy");
+
+
+
 /**
  * alias - Save resulting image to another alias name.
  * Password always apply, must be defined.
@@ -970,7 +998,7 @@ if ($status) {
     $res = $cache->getStatusOfSubdir("srgb");
     $text .= "Cache srgb $res\n";
 
-    $res = $cache->getStatusOfSubdir($fasttrackCache);
+    $res = $cache->getStatusOfSubdir($fastTrackCache);
     $text .= "Cache fasttrack $res\n";
 
     $text .= "Alias path writable = " . is_writable($aliasPath) . "\n";
@@ -987,6 +1015,11 @@ if ($status) {
     $no = extension_loaded('gd') ? null : 'NOT';
     $text .= "Extension gd is $no loaded.<br>";
 
+    $text .= checkExternalCommand("PNG LOSSY", $postProcessing["png_lossy"], $postProcessing["png_lossy_cmd"]);
+    $text .= checkExternalCommand("PNG FILTER", $postProcessing["png_filter"], $postProcessing["png_filter_cmd"]);
+    $text .= checkExternalCommand("PNG DEFLATE", $postProcessing["png_deflate"], $postProcessing["png_deflate_cmd"]);
+    $text .= checkExternalCommand("JPEG OPTIMIZE", $postProcessing["jpeg_optimize"], $postProcessing["jpeg_optimize_cmd"]);
+
     if (!$no) {
         $text .= print_r(gd_info(), 1);
     }
@@ -1055,6 +1088,7 @@ if (is_callable($hookBeforeCImage)) {
 
             // Other
             'postProcessing' => $postProcessing,
+            'lossy' => $lossy,
     ));
     verbose(print_r($allConfig, 1));
     extract($allConfig);
@@ -1139,6 +1173,9 @@ $img->log("Incoming arguments: " . print_r(verbose(), 1))
             // Output format
             'outputFormat' => $outputFormat,
             'dpr'          => $dpr,
+
+            // Postprocessing using external tools
+            'lossy' => $lossy,
         )
     )
     ->loadImageDetails()

webroot/img_config.php

@@ -16,8 +16,8 @@
  * CIMAGE_DEBUG will be false by default, if its not defined.
  */
 if (!defined("CIMAGE_DEBUG")) {
-    //define("CIMAGE_DEBUG", false);
-    define("CIMAGE_DEBUG", true);
+    define("CIMAGE_DEBUG", false);
+    //define("CIMAGE_DEBUG", true);
     define("CIMAGE_DEBUG_FILE", "/tmp/cimage");
 }
 
@@ -41,7 +41,7 @@ return array(
      *  mode: 'production'
      */
      //'mode' => 'production',
-     'mode' => 'development',
+     //'mode' => 'development',
      //'mode' => 'strict',
 
 
@@ -79,7 +79,7 @@ return array(
      * Default values:
      *  fast_track_allow: false
      */
-    'fast_track_allow' => true,
+    //'fast_track_allow' => true,
 
 
 
@@ -321,8 +321,16 @@ return array(
      * Post processing of images using external tools, set to true or false
      * and set command to be executed.
      *
+     * The png_lossy can alos have a value of null which means that its
+     * enabled but not used as default. Each image having the option
+     * &lossy will be processed. This means one can individually choose
+     * when to use the lossy processing.
+     *
      * Default values.
      *
+     *  png_lossy:        false
+     *  png_lossy_cmd:    '/usr/local/bin/pngquant --force --output'
+     *
      *  png_filter:        false
      *  png_filter_cmd:    '/usr/local/bin/optipng -q'
      *
@@ -334,6 +342,9 @@ return array(
      */
     /*
     'postprocessing' => array(
+        'png_lossy'       => null,
+        'png_lossy_cmd'   => '/usr/local/bin/pngquant --force --output',
+
         'png_filter'        => false,
         'png_filter_cmd'    => '/usr/local/bin/optipng -q',
 

webroot/imgd.php

@@ -38,11 +38,16 @@ $config = array(
 
 
 // Version of cimage and img.php
-define("CIMAGE_VERSION", "v0.7.13 (2016-08-08)");
+define("CIMAGE_VERSION", "v0.7.19 (2017-03-31)");
 
 // For CRemoteImage
 define("CIMAGE_USER_AGENT", "CImage/" . CIMAGE_VERSION);
 
+// Image type IMG_WEBP is only defined from 5.6.25
+if (!defined("IMG_WEBP")) {
+    define("IMG_WEBP", -1);
+}
+
 
 
 /**
@@ -113,22 +118,6 @@ function errorPage($msg, $type = 500)
 
 
 
-/**
- * Custom exception handler.
- */
-set_exception_handler(function ($exception) {
-    errorPage(
-        "<p><b>img.php: Uncaught exception:</b> <p>"
-        . $exception->getMessage()
-        . "</p><pre>"
-        . $exception->getTraceAsString()
-        . "</pre>",
-        500
-    );
-});
-
-
-
 /**
  * Get input from query string or return default value if not set.
  *
@@ -212,6 +201,27 @@ function verbose($msg = null)
 
 
 
+/**
+ * Log when verbose mode, when used without argument it returns the result.
+ *
+ * @param string $msg to log.
+ *
+ * @return void or array.
+ */
+function checkExternalCommand($what, $enabled, $commandString)
+{
+    $no = $enabled ? null : 'NOT';
+    $text = "Post processing $what is $no enabled.<br>";
+
+    list($command) = explode(" ", $commandString);
+    $no = is_executable($command) ? null : 'NOT';
+    $text .= "The command for $what is $no an executable.<br>";
+
+    return $text;
+}
+
+
+
 /**
  * Get a image from a remote server using HTTP GET and If-Modified-Since.
  *
@@ -1255,6 +1265,13 @@ class CImage
 
 
 
+    /**
+     * Do lossy output using external postprocessing tools.
+     */
+    private $lossy = null;
+
+
+
     /**
      * Verbose mode to print out a trace and display the created image
      */
@@ -1290,7 +1307,15 @@ class CImage
 
 
     /**
-     * Path to command for filter optimize, for example optipng or null.
+     * Path to command for lossy optimize, for example pngquant.
+     */
+    private $pngLossy;
+    private $pngLossyCmd;
+
+
+
+    /**
+     * Path to command for filter optimize, for example optipng.
      */
     private $pngFilter;
     private $pngFilterCmd;
@@ -1298,7 +1323,7 @@ class CImage
 
 
     /**
-     * Path to command for deflate optimize, for example pngout or null.
+     * Path to command for deflate optimize, for example pngout.
      */
     private $pngDeflate;
     private $pngDeflateCmd;
@@ -1740,7 +1765,7 @@ class CImage
      */
     private function checkFileExtension($extension)
     {
-        $valid = array('jpg', 'jpeg', 'png', 'gif');
+        $valid = array('jpg', 'jpeg', 'png', 'gif', 'webp');
 
         in_array(strtolower($extension), $valid)
             or $this->raiseError('Not a valid file extension.');
@@ -1763,7 +1788,7 @@ class CImage
 
         if ($extension == 'jpeg') {
                 $extension = 'jpg';
-            }
+        }
 
         return $extension;
     }
@@ -1927,6 +1952,9 @@ class CImage
             // Output format
             'outputFormat' => null,
             'dpr'          => 1,
+
+            // Postprocessing using external tools
+            'lossy' => null,
         );
 
         // Convert crop settings from string to array
@@ -2041,17 +2069,34 @@ class CImage
         is_readable($file)
             or $this->raiseError('Image file does not exist.');
 
-        // Get details on image
-        $info = list($this->width, $this->height, $this->fileType, $this->attr) = getimagesize($file);
+        $info = list($this->width, $this->height, $this->fileType) = getimagesize($file);
         if (empty($info)) {
-            throw new Exception("The file doesn't seem to be a valid image.");
+            // To support webp
+            $this->fileType = false;
+            if (function_exists("exif_imagetype")) {
+                $this->fileType = exif_imagetype($file);
+                if ($this->fileType === false) {
+                    if (function_exists("imagecreatefromwebp")) {
+                        $webp = imagecreatefromwebp($file);
+                        if ($webp !== false) {
+                            $this->width  = imagesx($webp);
+                            $this->height = imagesy($webp);
+                            $this->fileType = IMG_WEBP;
+                        }
+                    }
+                }
+            }
+        }
+
+        if (!$this->fileType) {
+            throw new Exception("Loading image details, the file doesn't seem to be a valid image.");
         }
 
         if ($this->verbose) {
             $this->log("Loading image details for: {$file}");
             $this->log(" Image width x height (type): {$this->width} x {$this->height} ({$this->fileType}).");
             $this->log(" Image filesize: " . filesize($file) . " bytes.");
-            $this->log(" Image mimetype: " . image_type_to_mime_type($this->fileType));
+            $this->log(" Image mimetype: " . $this->getMimeType());
         }
 
         return $this;
@@ -2059,6 +2104,23 @@ class CImage
 
 
 
+    /**
+     * Get mime type for image type.
+     *
+     * @return $this
+     * @throws Exception
+     */
+    protected function getMimeType()
+    {
+        if ($this->fileType === IMG_WEBP) {
+            return "image/webp";
+        }
+
+        return image_type_to_mime_type($this->fileType);
+    }
+
+
+
     /**
      * Init new width and height and do some sanity checks on constraints, before any
      * processing can be done.
@@ -2413,6 +2475,7 @@ class CImage
             && !$this->autoRotate
             && !$this->bgColor
             && ($this->upscale === self::UPSCALE_DEFAULT)
+            && !$this->lossy
         ) {
             $this->log("Using original image.");
             $this->output($this->pathToImage);
@@ -2446,6 +2509,7 @@ class CImage
         $compress     = $this->compress     ? "_co{$this->compress}"     : null;
         $rotateBefore = $this->rotateBefore ? "_rb{$this->rotateBefore}" : null;
         $rotateAfter  = $this->rotateAfter  ? "_ra{$this->rotateAfter}"  : null;
+        $lossy        = $this->lossy        ? "_l"                       : null;
 
         $saveAs = $this->normalizeFileExtension();
         $saveAs = $saveAs ? "_$saveAs" : null;
@@ -2512,7 +2576,7 @@ class CImage
             . $quality . $filters . $sharpen . $emboss . $blur . $palette
             . $optimize . $compress
             . $scale . $rotateBefore . $rotateAfter . $autoRotate . $bgColor
-            . $convolve . $copyStrat . $saveAs;
+            . $convolve . $copyStrat . $lossy . $saveAs;
 
         return $this->setTarget($file, $base);
     }
@@ -2570,9 +2634,14 @@ class CImage
             $this->setSource($src, $dir);
         }
 
-        $this->loadImageDetails($this->pathToImage);
+        $this->loadImageDetails();
 
-        $this->image = imagecreatefromstring(file_get_contents($this->pathToImage));
+        if ($this->fileType === IMG_WEBP) {
+            $this->image = imagecreatefromwebp($this->pathToImage);
+        } else {
+            $imageAsString = file_get_contents($this->pathToImage);
+            $this->image = imagecreatefromstring($imageAsString);
+        }
         if ($this->image === false) {
             throw new Exception("Could not load image.");
         }
@@ -3406,6 +3475,14 @@ class CImage
             $this->jpegOptimizeCmd = null;
         }
 
+        if (array_key_exists("png_lossy", $options) 
+            && $options['png_lossy'] !== false) {
+            $this->pngLossy = $options['png_lossy'];
+            $this->pngLossyCmd = $options['png_lossy_cmd'];
+        } else {
+            $this->pngLossyCmd = null;
+        }
+
         if (isset($options['png_filter']) && $options['png_filter']) {
             $this->pngFilterCmd = $options['png_filter_cmd'];
         } else {
@@ -3433,9 +3510,11 @@ class CImage
         // switch on mimetype
         if (isset($this->extension)) {
             return strtolower($this->extension);
-        } else {
-            return substr(image_type_to_extension($this->fileType), 1);
+        } elseif ($this->fileType === IMG_WEBP) {
+            return "webp";
         }
+
+        return substr(image_type_to_extension($this->fileType), 1);
     }
 
 
@@ -3491,6 +3570,11 @@ class CImage
                 imagegif($this->image, $this->cacheFileName);
                 break;
 
+            case 'webp':
+                $this->Log("Saving image as WEBP to cache using quality = {$this->quality}.");
+                imagewebp($this->image, $this->cacheFileName, $this->quality);
+                break;
+
             case 'png':
             default:
                 $this->Log("Saving image as PNG to cache using compression = {$this->compress}.");
@@ -3500,6 +3584,24 @@ class CImage
                 imagesavealpha($this->image, true);
                 imagepng($this->image, $this->cacheFileName, $this->compress);
 
+                // Use external program to process lossy PNG, if defined
+                $lossyEnabled = $this->pngLossy === true;
+                $lossySoftEnabled = $this->pngLossy === null;
+                $lossyActiveEnabled = $this->lossy === true;
+                if ($lossyEnabled || ($lossySoftEnabled && $lossyActiveEnabled)) {
+                    if ($this->verbose) {
+                        clearstatcache();
+                        $this->log("Lossy enabled: $lossyEnabled");
+                        $this->log("Lossy soft enabled: $lossySoftEnabled");
+                        $this->Log("Filesize before lossy optimize: " . filesize($this->cacheFileName) . " bytes.");
+                    }
+                    $res = array();
+                    $cmd = $this->pngLossyCmd . " $this->cacheFileName $this->cacheFileName";
+                    exec($cmd, $res);
+                    $this->Log($cmd);
+                    $this->Log($res);
+                }
+
                 // Use external program to filter PNG, if defined
                 if ($this->pngFilterCmd) {
                     if ($this->verbose) {
@@ -3679,6 +3781,7 @@ class CImage
             $format = $this->outputFormat;
         }
 
+        $this->log("### Output");
         $this->log("Output format is: $format");
 
         if (!$this->verbose && $format == 'json') {
@@ -3712,7 +3815,8 @@ class CImage
             $this->fastTrackCache->addHeader($header);
         }
 
-        if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == $lastModified) {
+        if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])
+            && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == $lastModified) {
 
             if ($this->verbose) {
                 $this->log("304 not modified");
@@ -3727,10 +3831,8 @@ class CImage
 
         } else {
 
-            // Get details on image
-            $info = getimagesize($file);
-            !empty($info) or $this->raiseError("The file doesn't seem to be an image.");
-            $mime = $info['mime'];
+            $this->loadImageDetails($file);
+            $mime = $this->getMimeType();
             $size = filesize($file);
 
             if ($this->verbose) {
@@ -3791,7 +3893,7 @@ class CImage
         $this->load($file);
 
         $details['filename']    = basename($file);
-        $details['mimeType']    = image_type_to_mime_type($this->fileType);
+        $details['mimeType']    = $this->getMimeType($this->fileType);
         $details['width']       = $this->width;
         $details['height']      = $this->height;
         $details['aspectRatio'] = round($this->width / $this->height, 3);
@@ -3893,6 +3995,7 @@ class CImage
     private function verboseOutput()
     {
         $log = null;
+        $this->log("### Summary of verbose log");
         $this->log("As JSON: \n" . $this->json());
         $this->log("Memory peak: " . round(memory_get_peak_usage() /1024/1024) . "M");
         $this->log("Memory limit: " . ini_get('memory_limit'));
@@ -4299,6 +4402,22 @@ class CFastTrackCache
  *
  */
 
+/**
+ * Custom exception handler.
+ */
+set_exception_handler(function ($exception) {
+    errorPage(
+        "<p><b>img.php: Uncaught exception:</b> <p>"
+        . $exception->getMessage()
+        . "</p><pre>"
+        . $exception->getTraceAsString()
+        . "</pre>",
+        500
+    );
+});
+
+
+
 /**
  * Get configuration options from file, if the file exists, else use $config
  * if its defined or create an empty $config.
@@ -5131,6 +5250,9 @@ verbose("upscale = $upscale");
  * Get details for post processing
  */
 $postProcessing = getConfig('postprocessing', array(
+    'png_lossy'        => false,
+    'png_lossy_cmd'    => '/usr/local/bin/pngquant --force --output',
+
     'png_filter'        => false,
     'png_filter_cmd'    => '/usr/local/bin/optipng -q',
 
@@ -5143,6 +5265,15 @@ $postProcessing = getConfig('postprocessing', array(
 
 
 
+/**
+ * lossy - Do lossy postprocessing, if available.
+ */
+$lossy = getDefined(array('lossy'), true, null);
+
+verbose("lossy = $lossy");
+
+
+
 /**
  * alias - Save resulting image to another alias name.
  * Password always apply, must be defined.
@@ -5261,7 +5392,7 @@ if ($status) {
     $res = $cache->getStatusOfSubdir("srgb");
     $text .= "Cache srgb $res\n";
 
-    $res = $cache->getStatusOfSubdir($fasttrackCache);
+    $res = $cache->getStatusOfSubdir($fastTrackCache);
     $text .= "Cache fasttrack $res\n";
 
     $text .= "Alias path writable = " . is_writable($aliasPath) . "\n";
@@ -5278,6 +5409,11 @@ if ($status) {
     $no = extension_loaded('gd') ? null : 'NOT';
     $text .= "Extension gd is $no loaded.<br>";
 
+    $text .= checkExternalCommand("PNG LOSSY", $postProcessing["png_lossy"], $postProcessing["png_lossy_cmd"]);
+    $text .= checkExternalCommand("PNG FILTER", $postProcessing["png_filter"], $postProcessing["png_filter_cmd"]);
+    $text .= checkExternalCommand("PNG DEFLATE", $postProcessing["png_deflate"], $postProcessing["png_deflate_cmd"]);
+    $text .= checkExternalCommand("JPEG OPTIMIZE", $postProcessing["jpeg_optimize"], $postProcessing["jpeg_optimize_cmd"]);
+
     if (!$no) {
         $text .= print_r(gd_info(), 1);
     }
@@ -5346,6 +5482,7 @@ if (is_callable($hookBeforeCImage)) {
 
             // Other
             'postProcessing' => $postProcessing,
+            'lossy' => $lossy,
     ));
     verbose(print_r($allConfig, 1));
     extract($allConfig);
@@ -5430,6 +5567,9 @@ $img->log("Incoming arguments: " . print_r(verbose(), 1))
             // Output format
             'outputFormat' => $outputFormat,
             'dpr'          => $dpr,
+
+            // Postprocessing using external tools
+            'lossy' => $lossy,
         )
     )
     ->loadImageDetails()

webroot/imgp.php

@@ -38,11 +38,16 @@ $config = array(
 
 
 // Version of cimage and img.php
-define("CIMAGE_VERSION", "v0.7.13 (2016-08-08)");
+define("CIMAGE_VERSION", "v0.7.19 (2017-03-31)");
 
 // For CRemoteImage
 define("CIMAGE_USER_AGENT", "CImage/" . CIMAGE_VERSION);
 
+// Image type IMG_WEBP is only defined from 5.6.25
+if (!defined("IMG_WEBP")) {
+    define("IMG_WEBP", -1);
+}
+
 
 
 /**
@@ -113,22 +118,6 @@ function errorPage($msg, $type = 500)
 
 
 
-/**
- * Custom exception handler.
- */
-set_exception_handler(function ($exception) {
-    errorPage(
-        "<p><b>img.php: Uncaught exception:</b> <p>"
-        . $exception->getMessage()
-        . "</p><pre>"
-        . $exception->getTraceAsString()
-        . "</pre>",
-        500
-    );
-});
-
-
-
 /**
  * Get input from query string or return default value if not set.
  *
@@ -212,6 +201,27 @@ function verbose($msg = null)
 
 
 
+/**
+ * Log when verbose mode, when used without argument it returns the result.
+ *
+ * @param string $msg to log.
+ *
+ * @return void or array.
+ */
+function checkExternalCommand($what, $enabled, $commandString)
+{
+    $no = $enabled ? null : 'NOT';
+    $text = "Post processing $what is $no enabled.<br>";
+
+    list($command) = explode(" ", $commandString);
+    $no = is_executable($command) ? null : 'NOT';
+    $text .= "The command for $what is $no an executable.<br>";
+
+    return $text;
+}
+
+
+
 /**
  * Get a image from a remote server using HTTP GET and If-Modified-Since.
  *
@@ -1255,6 +1265,13 @@ class CImage
 
 
 
+    /**
+     * Do lossy output using external postprocessing tools.
+     */
+    private $lossy = null;
+
+
+
     /**
      * Verbose mode to print out a trace and display the created image
      */
@@ -1290,7 +1307,15 @@ class CImage
 
 
     /**
-     * Path to command for filter optimize, for example optipng or null.
+     * Path to command for lossy optimize, for example pngquant.
+     */
+    private $pngLossy;
+    private $pngLossyCmd;
+
+
+
+    /**
+     * Path to command for filter optimize, for example optipng.
      */
     private $pngFilter;
     private $pngFilterCmd;
@@ -1298,7 +1323,7 @@ class CImage
 
 
     /**
-     * Path to command for deflate optimize, for example pngout or null.
+     * Path to command for deflate optimize, for example pngout.
      */
     private $pngDeflate;
     private $pngDeflateCmd;
@@ -1740,7 +1765,7 @@ class CImage
      */
     private function checkFileExtension($extension)
     {
-        $valid = array('jpg', 'jpeg', 'png', 'gif');
+        $valid = array('jpg', 'jpeg', 'png', 'gif', 'webp');
 
         in_array(strtolower($extension), $valid)
             or $this->raiseError('Not a valid file extension.');
@@ -1763,7 +1788,7 @@ class CImage
 
         if ($extension == 'jpeg') {
                 $extension = 'jpg';
-            }
+        }
 
         return $extension;
     }
@@ -1927,6 +1952,9 @@ class CImage
             // Output format
             'outputFormat' => null,
             'dpr'          => 1,
+
+            // Postprocessing using external tools
+            'lossy' => null,
         );
 
         // Convert crop settings from string to array
@@ -2041,17 +2069,34 @@ class CImage
         is_readable($file)
             or $this->raiseError('Image file does not exist.');
 
-        // Get details on image
-        $info = list($this->width, $this->height, $this->fileType, $this->attr) = getimagesize($file);
+        $info = list($this->width, $this->height, $this->fileType) = getimagesize($file);
         if (empty($info)) {
-            throw new Exception("The file doesn't seem to be a valid image.");
+            // To support webp
+            $this->fileType = false;
+            if (function_exists("exif_imagetype")) {
+                $this->fileType = exif_imagetype($file);
+                if ($this->fileType === false) {
+                    if (function_exists("imagecreatefromwebp")) {
+                        $webp = imagecreatefromwebp($file);
+                        if ($webp !== false) {
+                            $this->width  = imagesx($webp);
+                            $this->height = imagesy($webp);
+                            $this->fileType = IMG_WEBP;
+                        }
+                    }
+                }
+            }
+        }
+
+        if (!$this->fileType) {
+            throw new Exception("Loading image details, the file doesn't seem to be a valid image.");
         }
 
         if ($this->verbose) {
             $this->log("Loading image details for: {$file}");
             $this->log(" Image width x height (type): {$this->width} x {$this->height} ({$this->fileType}).");
             $this->log(" Image filesize: " . filesize($file) . " bytes.");
-            $this->log(" Image mimetype: " . image_type_to_mime_type($this->fileType));
+            $this->log(" Image mimetype: " . $this->getMimeType());
         }
 
         return $this;
@@ -2059,6 +2104,23 @@ class CImage
 
 
 
+    /**
+     * Get mime type for image type.
+     *
+     * @return $this
+     * @throws Exception
+     */
+    protected function getMimeType()
+    {
+        if ($this->fileType === IMG_WEBP) {
+            return "image/webp";
+        }
+
+        return image_type_to_mime_type($this->fileType);
+    }
+
+
+
     /**
      * Init new width and height and do some sanity checks on constraints, before any
      * processing can be done.
@@ -2413,6 +2475,7 @@ class CImage
             && !$this->autoRotate
             && !$this->bgColor
             && ($this->upscale === self::UPSCALE_DEFAULT)
+            && !$this->lossy
         ) {
             $this->log("Using original image.");
             $this->output($this->pathToImage);
@@ -2446,6 +2509,7 @@ class CImage
         $compress     = $this->compress     ? "_co{$this->compress}"     : null;
         $rotateBefore = $this->rotateBefore ? "_rb{$this->rotateBefore}" : null;
         $rotateAfter  = $this->rotateAfter  ? "_ra{$this->rotateAfter}"  : null;
+        $lossy        = $this->lossy        ? "_l"                       : null;
 
         $saveAs = $this->normalizeFileExtension();
         $saveAs = $saveAs ? "_$saveAs" : null;
@@ -2512,7 +2576,7 @@ class CImage
             . $quality . $filters . $sharpen . $emboss . $blur . $palette
             . $optimize . $compress
             . $scale . $rotateBefore . $rotateAfter . $autoRotate . $bgColor
-            . $convolve . $copyStrat . $saveAs;
+            . $convolve . $copyStrat . $lossy . $saveAs;
 
         return $this->setTarget($file, $base);
     }
@@ -2570,9 +2634,14 @@ class CImage
             $this->setSource($src, $dir);
         }
 
-        $this->loadImageDetails($this->pathToImage);
+        $this->loadImageDetails();
 
-        $this->image = imagecreatefromstring(file_get_contents($this->pathToImage));
+        if ($this->fileType === IMG_WEBP) {
+            $this->image = imagecreatefromwebp($this->pathToImage);
+        } else {
+            $imageAsString = file_get_contents($this->pathToImage);
+            $this->image = imagecreatefromstring($imageAsString);
+        }
         if ($this->image === false) {
             throw new Exception("Could not load image.");
         }
@@ -3406,6 +3475,14 @@ class CImage
             $this->jpegOptimizeCmd = null;
         }
 
+        if (array_key_exists("png_lossy", $options) 
+            && $options['png_lossy'] !== false) {
+            $this->pngLossy = $options['png_lossy'];
+            $this->pngLossyCmd = $options['png_lossy_cmd'];
+        } else {
+            $this->pngLossyCmd = null;
+        }
+
         if (isset($options['png_filter']) && $options['png_filter']) {
             $this->pngFilterCmd = $options['png_filter_cmd'];
         } else {
@@ -3433,9 +3510,11 @@ class CImage
         // switch on mimetype
         if (isset($this->extension)) {
             return strtolower($this->extension);
-        } else {
-            return substr(image_type_to_extension($this->fileType), 1);
+        } elseif ($this->fileType === IMG_WEBP) {
+            return "webp";
         }
+
+        return substr(image_type_to_extension($this->fileType), 1);
     }
 
 
@@ -3491,6 +3570,11 @@ class CImage
                 imagegif($this->image, $this->cacheFileName);
                 break;
 
+            case 'webp':
+                $this->Log("Saving image as WEBP to cache using quality = {$this->quality}.");
+                imagewebp($this->image, $this->cacheFileName, $this->quality);
+                break;
+
             case 'png':
             default:
                 $this->Log("Saving image as PNG to cache using compression = {$this->compress}.");
@@ -3500,6 +3584,24 @@ class CImage
                 imagesavealpha($this->image, true);
                 imagepng($this->image, $this->cacheFileName, $this->compress);
 
+                // Use external program to process lossy PNG, if defined
+                $lossyEnabled = $this->pngLossy === true;
+                $lossySoftEnabled = $this->pngLossy === null;
+                $lossyActiveEnabled = $this->lossy === true;
+                if ($lossyEnabled || ($lossySoftEnabled && $lossyActiveEnabled)) {
+                    if ($this->verbose) {
+                        clearstatcache();
+                        $this->log("Lossy enabled: $lossyEnabled");
+                        $this->log("Lossy soft enabled: $lossySoftEnabled");
+                        $this->Log("Filesize before lossy optimize: " . filesize($this->cacheFileName) . " bytes.");
+                    }
+                    $res = array();
+                    $cmd = $this->pngLossyCmd . " $this->cacheFileName $this->cacheFileName";
+                    exec($cmd, $res);
+                    $this->Log($cmd);
+                    $this->Log($res);
+                }
+
                 // Use external program to filter PNG, if defined
                 if ($this->pngFilterCmd) {
                     if ($this->verbose) {
@@ -3679,6 +3781,7 @@ class CImage
             $format = $this->outputFormat;
         }
 
+        $this->log("### Output");
         $this->log("Output format is: $format");
 
         if (!$this->verbose && $format == 'json') {
@@ -3712,7 +3815,8 @@ class CImage
             $this->fastTrackCache->addHeader($header);
         }
 
-        if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == $lastModified) {
+        if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])
+            && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == $lastModified) {
 
             if ($this->verbose) {
                 $this->log("304 not modified");
@@ -3727,10 +3831,8 @@ class CImage
 
         } else {
 
-            // Get details on image
-            $info = getimagesize($file);
-            !empty($info) or $this->raiseError("The file doesn't seem to be an image.");
-            $mime = $info['mime'];
+            $this->loadImageDetails($file);
+            $mime = $this->getMimeType();
             $size = filesize($file);
 
             if ($this->verbose) {
@@ -3791,7 +3893,7 @@ class CImage
         $this->load($file);
 
         $details['filename']    = basename($file);
-        $details['mimeType']    = image_type_to_mime_type($this->fileType);
+        $details['mimeType']    = $this->getMimeType($this->fileType);
         $details['width']       = $this->width;
         $details['height']      = $this->height;
         $details['aspectRatio'] = round($this->width / $this->height, 3);
@@ -3893,6 +3995,7 @@ class CImage
     private function verboseOutput()
     {
         $log = null;
+        $this->log("### Summary of verbose log");
         $this->log("As JSON: \n" . $this->json());
         $this->log("Memory peak: " . round(memory_get_peak_usage() /1024/1024) . "M");
         $this->log("Memory limit: " . ini_get('memory_limit'));
@@ -4299,6 +4402,22 @@ class CFastTrackCache
  *
  */
 
+/**
+ * Custom exception handler.
+ */
+set_exception_handler(function ($exception) {
+    errorPage(
+        "<p><b>img.php: Uncaught exception:</b> <p>"
+        . $exception->getMessage()
+        . "</p><pre>"
+        . $exception->getTraceAsString()
+        . "</pre>",
+        500
+    );
+});
+
+
+
 /**
  * Get configuration options from file, if the file exists, else use $config
  * if its defined or create an empty $config.
@@ -5131,6 +5250,9 @@ verbose("upscale = $upscale");
  * Get details for post processing
  */
 $postProcessing = getConfig('postprocessing', array(
+    'png_lossy'        => false,
+    'png_lossy_cmd'    => '/usr/local/bin/pngquant --force --output',
+
     'png_filter'        => false,
     'png_filter_cmd'    => '/usr/local/bin/optipng -q',
 
@@ -5143,6 +5265,15 @@ $postProcessing = getConfig('postprocessing', array(
 
 
 
+/**
+ * lossy - Do lossy postprocessing, if available.
+ */
+$lossy = getDefined(array('lossy'), true, null);
+
+verbose("lossy = $lossy");
+
+
+
 /**
  * alias - Save resulting image to another alias name.
  * Password always apply, must be defined.
@@ -5261,7 +5392,7 @@ if ($status) {
     $res = $cache->getStatusOfSubdir("srgb");
     $text .= "Cache srgb $res\n";
 
-    $res = $cache->getStatusOfSubdir($fasttrackCache);
+    $res = $cache->getStatusOfSubdir($fastTrackCache);
     $text .= "Cache fasttrack $res\n";
 
     $text .= "Alias path writable = " . is_writable($aliasPath) . "\n";
@@ -5278,6 +5409,11 @@ if ($status) {
     $no = extension_loaded('gd') ? null : 'NOT';
     $text .= "Extension gd is $no loaded.<br>";
 
+    $text .= checkExternalCommand("PNG LOSSY", $postProcessing["png_lossy"], $postProcessing["png_lossy_cmd"]);
+    $text .= checkExternalCommand("PNG FILTER", $postProcessing["png_filter"], $postProcessing["png_filter_cmd"]);
+    $text .= checkExternalCommand("PNG DEFLATE", $postProcessing["png_deflate"], $postProcessing["png_deflate_cmd"]);
+    $text .= checkExternalCommand("JPEG OPTIMIZE", $postProcessing["jpeg_optimize"], $postProcessing["jpeg_optimize_cmd"]);
+
     if (!$no) {
         $text .= print_r(gd_info(), 1);
     }
@@ -5346,6 +5482,7 @@ if (is_callable($hookBeforeCImage)) {
 
             // Other
             'postProcessing' => $postProcessing,
+            'lossy' => $lossy,
     ));
     verbose(print_r($allConfig, 1));
     extract($allConfig);
@@ -5430,6 +5567,9 @@ $img->log("Incoming arguments: " . print_r(verbose(), 1))
             // Output format
             'outputFormat' => $outputFormat,
             'dpr'          => $dpr,
+
+            // Postprocessing using external tools
+            'lossy' => $lossy,
         )
     )
     ->loadImageDetails()