Enh #3978 Image scale/resize options; Added FileController for console

CHANGELOG_DEV.md

@@ -48,3 +48,4 @@ HumHub Changelog
 - Enh #4195: Increased scaled logo size for high res displays
 - Enh #4469: Added TextConverter maximum length
 - Enh #4469: Added file converter id attribute
+- Enh #3978: Added option to compress and resize images automatically on upload

protected/humhub/modules/file/Module.php

@@ -53,4 +53,27 @@ class Module extends \humhub\components\Module
      */
     public $converterOptions = [];
 
+    /**
+     * @since 1.7
+     * @var string maximum image resolution before downscaling e.g. 1920x1080
+     */
+    public $imageMaxResolution = null;
+
+    /**
+     * @since 1.7
+     * @var string The JPEG quality for uploaded JPEG images. From 0 to 100.
+     */
+    public $imageJpegQuality = null;
+
+    /**
+     * @since 1.7
+     * @var string The PNG compression level for uploaded PNG images. From 0 to 9.
+     */
+    public $imagePngCompressionLevel = null;
+
+    /**
+     * @since 1.7
+     * @var string The WebP quality for uploaded WebP files. From 0 to 100.
+     */
+    public $imageWebpQuality = null;
 }

protected/humhub/modules/file/actions/UploadAction.php

@@ -9,6 +9,7 @@
 namespace humhub\modules\file\actions;
 
 use humhub\libs\Html;
+use humhub\modules\file\libs\ImageHelper;
 use Yii;
 use yii\base\Action;
 use yii\web\UploadedFile;
@@ -96,6 +97,7 @@ class UploadAction extends Action
             if ($this->record !== null) {
                 $this->record->fileManager->attach($file);
             }
+            $this->afterFileUpload($file);
             return array_merge(['error' => false], FileHelper::getFileInfos($file));
         } else {
             return $this->getErrorResponse($file);
@@ -107,6 +109,18 @@ class UploadAction extends Action
         return (Yii::$app->request->post('hideInStream') == 1) || (Yii::$app->request->get('hideInStream') == 1);
     }
 
+
+    /**
+     * Is called after a file has been successfully uploaded and saved.
+     *
+     * @param File $file
+     * @since 1.7
+     */
+    protected function afterFileUpload(File $file)
+    {
+        ImageHelper::downscaleImage($file);
+    }
+
     /**
      * Loads the target record by request parameter if defined.
      * The default implementation only supports uploads to ContentActiveRecord or ContentAddonActiveRecords.

protected/humhub/modules/file/commands/FileController.php

@@ -0,0 +1,95 @@
+<?php
+
+/**
+ * @link https://www.humhub.org/
+ * @copyright Copyright (c) 2020 HumHub GmbH & Co. KG
+ * @license https://www.humhub.com/licences
+ */
+
+namespace humhub\modules\file\commands;
+
+use humhub\modules\file\libs\ImageHelper;
+use humhub\modules\file\models\File;
+use Yii;
+use yii\console\widgets\Table;
+
+/**
+ * Management of uploaded files
+ *
+ * @since 1.7
+ */
+class FileController extends \yii\console\Controller
+{
+
+    /**
+     * Overview of uploaded files and automatically generated variants.
+     */
+    public function actionIndex()
+    {
+        $this->stdout("*** File module console\n\n");
+
+        $fileSize = 0;
+        $fileSizes = [];
+        /** @var File $file */
+        foreach (File::find()->all() as $file) {
+            $fileSize += filesize($file->store->get());
+            foreach ($file->store->getVariants() as $variant) {
+                if (!isset($fileSizes[$variant])) {
+                    $fileSizes[$variant] = 0;
+                }
+                $fileSizes[$variant] += filesize($file->store->get($variant));
+            }
+        }
+
+        echo Table::widget(['rows' => [
+            ['Total number of uploaded files', File::find()->count()],
+            ['Size', Yii::$app->formatter->asShortSize($fileSize)],
+
+        ]]);
+
+        $this->stdout("\nAutomatically generated file variants:\n");
+
+        $table = [];
+        foreach ($fileSizes as $v => $s) {
+            $table[] = [$v, Yii::$app->formatter->asShortSize($s)];
+        }
+        echo Table::widget(['headers' => ['Variant', 'Size'], 'rows' => $table]);
+    }
+
+    /**
+     * Deletes all automatically generated file variants (previews, converted versions).
+     */
+    public function actionDeleteVariants()
+    {
+        $this->stdout("*** File module console\n\n");
+        $this->stdout('Deleting automatically created file variants:');
+
+        /** @var File $file */
+        foreach (File::find()->all() as $file) {
+            foreach ($file->store->getVariants() as $variant) {
+                $file->store->delete($variant);
+                $this->stdout('.');
+            }
+        }
+
+        $this->stdout("OK!\n\n");
+    }
+
+
+    /**
+     * Scales down already uploaded images to the maximum dimensions and quality.
+     */
+    public function actionDownscaleImages()
+    {
+        $this->stdout("*** File module console\n\n");
+        $this->stdout('Downscaling uploaded files:');
+
+        /** @var File $file */
+        foreach (File::find()->all() as $file) {
+            ImageHelper::downscaleImage($file);
+            $this->stdout('.');
+        }
+
+        $this->stdout("OK!\n\n");
+    }
+}

protected/humhub/modules/file/config.php

@@ -13,6 +13,9 @@ return [
     'id' => 'file',
     'class' => Module::class,
     'isCoreModule' => true,
+    'consoleControllerMap' => [
+        'file' => 'humhub\modules\file\commands\FileController'
+    ],
     'events' => [
         ['class' => WallEntryAddons::class, 'event' => WallEntryAddons::EVENT_INIT, 'callback' => [Events::class, 'onWallEntryAddonInit']],
         ['class' => CronController::class, 'event' => CronController::EVENT_ON_DAILY_RUN, 'callback' => [Events::class, 'onCronDailyRun']],

protected/humhub/modules/file/libs/ImageHelper.php

@@ -10,7 +10,11 @@ namespace humhub\modules\file\libs;
 
 
 use humhub\modules\file\models\File;
+use humhub\modules\file\Module;
 use Imagine\Image\ImageInterface;
+use Yii;
+use yii\base\InvalidConfigException;
+use yii\imagine\Image;
 
 /**
  * Class ImageHelper
@@ -56,4 +60,76 @@ class ImageHelper
             }
         }
     }
+
+    /**
+     * Scales down a file image if necessary.
+     * The limits can be defined in the File Module class.
+     *
+     * @param $file File
+     * @since 1.7
+     */
+    public static function downscaleImage($file)
+    {
+        if (substr($file->mime_type, 0, 6) !== 'image/') {
+            return;
+        }
+
+        /** @var Module $module */
+        $module = Yii::$app->getModule('file');
+
+        // Is used to avoid saving without any configured scaling option.
+        $isModified = false;
+
+        $imagineOptions = [];
+        if ($file->mime_type === 'image/jpeg') {
+            if (!empty($module->imageJpegQuality)) {
+                $imagineOptions['jpeg_quality'] = $module->imageJpegQuality;
+                $isModified = true;
+            }
+            $imagineOptions['format'] = 'jpeg';
+        } elseif ($file->mime_type === 'image/png') {
+            if (!empty($module->imagePngCompressionLevel)) {
+                $imagineOptions['png_compression_level'] = $module->imagePngCompressionLevel;
+                $isModified = true;
+            }
+            $imagineOptions['format'] = 'png';
+        } elseif ($file->mime_type === 'image/webp') {
+            if (!empty($module->imageWebpQuality)) {
+                $imagineOptions['webp_quality'] = $module->imageWebpQuality;
+                $isModified = true;
+            }
+            $imagineOptions = ['format' => 'webp'];
+        } elseif ($file->mime_type === 'image/gif') {
+            $imagineOptions = ['format' => 'gif'];
+        } else {
+            return;
+        }
+
+        $image = Image::getImagine()->open($file->store->get());
+        static::fixJpegOrientation($image, $file);
+
+        if ($module->imageMaxResolution !== null) {
+            $maxResolution = explode('x', $module->imageMaxResolution, 2);
+            if (empty($maxResolution)) {
+                throw new InvalidConfigException('Invalid max. image resolution configured!');
+            }
+
+            if ($image->getSize()->getWidth() > $maxResolution[0]) {
+                $image->resize($image->getSize()->widen($maxResolution[0]));
+                $isModified = true;
+            }
+
+            if ($image->getSize()->getHeight() > $maxResolution[1]) {
+                $image->resize($image->getSize()->heighten($maxResolution[1]));
+                $isModified = true;
+            }
+        }
+
+        if ($isModified) {
+            $image->save($file->store->get(), $imagineOptions);
+            $file->updateAttributes(['size' => filesize($file->store->get())]);
+        }
+
+    }
+
 }