Thumbnail

system/admin/views/config-metatags.html.php

@@ -112,6 +112,12 @@ if (empty($defaultFormat)) {
       <input type="text" name="-config-default.image" class="form-control" id="default.image" value="<?php echo config('default.image');?>" placeholder="<?php echo site_url();?>system/resources/images/logo-big.png">
     </div>
   </div>
+  <div class="form-group row">
+    <label for="thumbnail.width" class="col-sm-2 col-form-label">Thumbnail Width</label>
+    <div class="col-sm-10">
+      <input type="number" name="-config-thumbnail.width" class="form-control" id="thumbnail.width" value="<?php echo config('thumbnail.width');?>">
+    </div>
+  </div>
   <br>
   <h4>Title formats</h4>
   <hr>

system/configList.json

@@ -89,5 +89,6 @@
     "views.layout",
     "autosave.enable",
     "mfa.state",
-    "show.version"
+    "show.version",
+    "thumbnail.width"
 ]

system/includes/dispatch.php

@@ -625,6 +625,44 @@ function flash($key, $msg = null, $now = false)
     $x[$key] = $msg;
 }
 
+function create_thumb($src, $desired_width) {
+    
+    $dir = 'content/images/thumbnails';
+
+    if (!is_dir($dir)) {
+        mkdir($dir);
+    }
+
+    $fileName = pathinfo($src, PATHINFO_FILENAME);
+    $thumbFile = $dir . '/' . $fileName  . '-' . $desired_width . '.jpg';
+
+    if (file_exists($thumbFile)) {
+        return site_url() . $thumbFile;
+    } else {
+
+        /* read the source image */
+        $source_image = imagecreatefromstring(file_get_contents($src));
+        $width = imagesx($source_image);
+        $height = imagesy($source_image);
+
+        /* find the "desired height" of this thumbnail, relative to the desired width  */
+        $desired_height = floor($height * ($desired_width / $width));
+
+        /* create a new, "virtual" image */
+        $virtual_image = imagecreatetruecolor($desired_width, $desired_height);
+
+        /* copy source image at a resized size */
+        imagecopyresampled($virtual_image, $source_image, 0, 0, 0, 0, $desired_width, $desired_height, $width, $height);
+
+        /* create the physical thumbnail image to its destination */
+        imagejpeg($virtual_image, $thumbFile);
+        imagedestroy($virtual_image);
+        
+        return site_url() . $thumbFile;
+
+    }
+}
+
 function dispatch()
 {
     $path = $_SERVER['REQUEST_URI'];

system/includes/functions.php

@@ -226,7 +226,7 @@ function scan_images() {
     static $_images = array();
     if (empty($_images)) {
         $tmp = array();
-        $tmp = glob('content/images/*', GLOB_NOSORT);
+        $tmp = array_filter(glob('content/images/*', GLOB_NOSORT), 'is_file');
         if (is_array($tmp)) {
             foreach ($tmp as $file) {
                 $_images[] = pathinfo($file);
@@ -2402,7 +2402,7 @@ function get_thumbnail($text, $url = null)
 }
 
 // Get image from post and Youtube thumbnail.
-function get_image($text)
+function get_image($text, $width = null)
 {
     libxml_use_internal_errors(true);
     $dom = new DOMDocument();
@@ -2412,7 +2412,11 @@ function get_image($text)
     if ($imgTags->length > 0) {
         $imgElement = $imgTags->item(0);
         $imgSource = $imgElement->getAttribute('src');
-        return $imgSource;
+        if(is_null($width)) {
+            return $imgSource;
+        } else {
+            return create_thumb($imgSource, $width);
+        }
     } elseif ($vidTags->length > 0) {
         $vidElement = $vidTags->item(0);
         $vidSource = $vidElement->getAttribute('src');

upload.php

@@ -15,32 +15,43 @@ if (config('timezone')) {
 $whitelist = array('jpg', 'jpeg', 'jfif', 'pjpeg', 'pjp', 'png', 'gif', 'webp');
 $name      = null;
 $dir       = 'content/images/';
+$dirThumb  = 'content/images/thumbnails/';
 $error     = null;
 $timestamp = date('YmdHis');
 $path      = null;
+$width     = config('thumbnail.width');
 
 if (login()) {
- 
+
     if (!is_dir($dir)) {
         mkdir($dir, 0755, true);
     }
-
+    if (is_null($width) || empty($width)) {
+        $width = 500;
+    }
     if (isset($_FILES) && isset($_FILES['file'])) {
         $tmp_name = $_FILES['file']['tmp_name'];
         $name     = basename($_FILES['file']['name']);
         $error    = $_FILES['file']['error'];
         $path     = $dir . $timestamp . '-' . $name;
-	
+
         $check = getimagesize($tmp_name);
-	
+
         if($check !== false) {
             if ($error === UPLOAD_ERR_OK) {
                 $extension = pathinfo($name, PATHINFO_EXTENSION);
                 if (!in_array(strtolower($extension), $whitelist)) {
                     $error = 'Invalid file type uploaded.';
                 } else {
-                    move_uploaded_file($tmp_name, $dir . $timestamp . '-' . $name);
+                    move_uploaded_file($tmp_name, $path);
                 }
+
+               $imageFile = pathinfo($path, PATHINFO_FILENAME);
+               $thumbFile = $dirThumb . $imageFile. '-' . $width . '.jpg';
+               if (!file_exists($thumbFile)) {
+                   create_thumb($path, $width);
+               }
+
             }
         } else {
             $error = "File is not an image.";
@@ -53,7 +64,7 @@ if (login()) {
         'name'  => $name,
         'error' => $error,
     ));
-	
+
     die();
 
 } else {