Create resizeimage.snippet.php

Author: jenswittmann

resizeimage.snippet.php

@@ -0,0 +1,148 @@
+<?php
+
+# vars
+$lib = $modx->getOption("lib", $scriptProperties, "Imagick");
+$libPath = $modx->getOption("libPath", $scriptProperties, "/Applications/MAMP/Library/bin/convert");
+$mode = $modx->getOption("mode", $scriptProperties, "");
+$type = $modx->getOption("type", $scriptProperties, "image");
+$input = $modx->getOption("input", $scriptProperties, "");
+$sizes = $modx->getOption("options", $scriptProperties, "");
+$quality = $modx->getOption("quality", $scriptProperties, 70);
+$fileExtension = $modx->getOption("fileExtension", $scriptProperties, "webp");
+$setRatio = $modx->getOption("setRatio", $scriptProperties, true);
+$cultureKey = $modx->getOption("cultureKey");
+$basePath = $modx->getOption("base_path");
+$filePath = preg_replace("/^\/?" . $cultureKey . "\//i", "", $input);
+$filePathLast = $filePath;
+$cachePath = $modx->getOption("cachePath", $scriptProperties, "assets/image-cache/");
+$srcsets = [];
+$src = [];
+
+# original image not exists
+if (!file_exists($basePath . $filePath)) {
+    if ($mode == "json") {
+        return "'" . $input . "'";
+    }
+    return $input;
+}
+
+# loop sizes
+$sizes = explode(",", $sizes);
+natsort($sizes);
+foreach (array_reverse($sizes) as $size) {
+    list($width, $height) = explode("x", $size);
+    $filePathInfo = pathinfo($filePath);
+    $savePathExtension = "." . substr(md5($filePathLast), 0, 8) . "." . $width . "x" . $height . "-" . $quality . "." . $fileExtension;
+    $savePath = $cachePath . $filePathInfo["filename"] . $savePathExtension;
+   
+    # check if base image exists
+    if (!file_exists($basePath . $filePathLast) || filesize($basePath . $filePathLast) < 1) {
+        $filePathLast = $filePath;
+    }
+   
+    # cached image not found
+    if (!file_exists($basePath . $savePath)) {
+        # check if cache dir exists
+        if (!is_dir($basePath . $cachePath)) {
+            mkdir($basePath . $cachePath, 0755);
+        } else {
+        
+            # cleanup cache
+            foreach (glob($basePath . $cachePath . "*." . $fileExtension) as $file) {
+                if (filemtime($file) < time() - (60 * 60 * 24 * 30)) {
+                    unlink($file);
+                }
+            }
+        
+        }
+    
+        # generate image
+        if ($lib == "cli") {
+            
+            if ($type == "video") {
+                
+                $cmd = $libPath . " -ss 00:00:00 -i " . $basePath . $filePathLast . " -filter:v scale=\"" . ( $width ?? "-1" ) . ":" . ( $height ?? "-1" ) . "\" " . $basePath . $savePath;
+            
+            } else {
+            
+                $resize = "-resize " . ( $width ?? "" ) . "x" . ( $height ?? "" );
+                
+                if ($width && $height) {
+                    $resize = "-resize " . $width . "x" . $height . "^ -gravity center -extent " . $width . "x" . $height;
+                }
+                
+                $cmd = "export OMP_NUM_THREADS=1;"; // bugfixes IONOS resize large images, thanks to https://stackoverflow.com/a/69133237
+                $cmd .= $libPath . " " . $basePath . $filePathLast . " " . $resize . "  -quality " . $quality . " " . $basePath . $savePath;
+           
+            }
+            
+            shell_exec($cmd);
+        
+        } else {
+            
+            $image = new Imagick($basePath . $filePathLast);
+            
+            if ($width && $height) {
+                $image->cropThumbnailImage((int) $width, (int) $height);
+            } else {
+                $image->thumbnailImage((int) $width, (int) $height);
+            }
+            
+            $image->setImageCompressionQuality($quality);
+            $image->writeImage($basePath . $savePath);
+        
+        }
+    
+    }
+        
+    # get generated image    
+    if (file_exists($basePath . $savePath)) {
+        list($width, $height) = getimagesize($basePath . $savePath);
+        $srcsets[] = [
+            "url" => $savePath,
+            "width" => $width,
+            "height" => $height
+        ];
+        
+        # use image for next loop
+        $filePathLast = $savePath;
+    }
+}
+
+# no srcsets, maybe video is converting in the background i.e.
+if (!count($srcsets)) {
+    return $input;
+}
+
+# generate srcset
+foreach ($srcsets as $srcset) {
+    $src[] = $srcset["url"] . " " . $srcset["width"] ."w";
+}
+
+# set width and height ratio
+$width = $srcsets[0]["width"];
+$height = $srcsets[0]["height"];
+
+# output as json
+if ($mode == "json") {
+    return "{
+        url: '" . $input . "',
+        src: '" . implode(",", $src) . "',
+        width: " . ( $width ?? 0 ) . ",
+        height: " . ( $height ?? 0 ) . "
+    }";
+}
+
+# output as base64
+$srcs = implode(",", $src);
+if ($mode == "base64") {
+    $srcs = "data:image/" . $fileExtension . ";base64," . base64_encode(file_get_contents($srcsets[0]["url"]));
+}
+
+$o = '="' . $srcs . '" width="' . $width . '" height="' . $height . '"';
+
+if ($setRatio) {
+    $o .= ' style="aspect-ratio: ' . $width . '/' . $height . '"';
+}
+
+return $o;