safer original image saving

image_compression.php

@@ -40,8 +40,27 @@ function rename_upload(string $uploadName, string $fileName, false|string $rndFi
 	if ($rndFile === false) {
 		return false;
 	}
-	$success = rename($uploadName, $GLOBALS['uploadDir'] . 'orignal_' . $rndFile . '_' . $fileName);
-	return ($success) ? $GLOBALS['uploadDir'] . 'orignal_' . $rndFile . $fileName . '_': false;
+	
+    list($originalWidth, $originalHeight, $imageType) = getimagesize($uploadName);
+    if ($originalWidth == 0 || $originalHeight == 0) {
+		return false;
+	}
+        
+    // File Name without EXT type or Path
+    $fileNameWithoutExt = pathinfo($uploadName, PATHINFO_FILENAME);
+    
+    $type = match($imageType) {
+        IMAGETYPE_JPEG => '.jpg',
+		IMAGETYPE_PNG => '.png', 
+		IMAGETYPE_GIF => '.gif',
+        default => false,
+    };
+    if ($type === false) {
+		return false;
+	}	
+	
+	$success = rename($uploadName, $GLOBALS['uploadDir'] . 'orignal_' . $rndFile . '_' . $fileNameWithoutExt . $type);
+	return ($success) ? 'orignal_' . $rndFile . '_' . $fileNameWithoutExt . $type : false;
 }
 
 function get_size(int $target, int $original): int {
@@ -80,7 +99,10 @@ function image_compression(string $uploadName, string $fileName, array $images):
 		}
 		$a_of_images[] = $file;
 	}
-	rename_upload($uploadName, $fileName, $rnd_name);
+	$org_file = rename_upload($uploadName, $fileName, $rnd_name);
+	if ($org_file !== false) {
+		$a_of_images[] = $org_file;
+	}
 	return $a_of_images;
 }