From b8480e5edee881d06a4fded52598917bf509223c Mon Sep 17 00:00:00 2001
From: Devesa Agustín <devesagustserwi@est.frba.utn.edu.ar>
Date: Wed, 8 Jan 2020 13:45:45 -0300
Subject: Update Image_lib.php

---
 system/libraries/Image_lib.php | 52 +++++++++++++++++++++++++++---------------
 1 file changed, 33 insertions(+), 19 deletions(-)

(limited to 'system/libraries/Image_lib.php')

diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index 9cd0d1dfa..b595d0f63 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -6,7 +6,7 @@
  *
  * This content is released under the MIT License (MIT)
  *
- * Copyright (c) 2014 - 2019, British Columbia Institute of Technology
+ * Copyright (c) 2014 - 2017, British Columbia Institute of Technology
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -29,8 +29,8 @@
  * @package	CodeIgniter
  * @author	EllisLab Dev Team
  * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
- * @copyright	Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
- * @license	https://opensource.org/licenses/MIT	MIT License
+ * @copyright	Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/)
+ * @license	http://opensource.org/licenses/MIT	MIT License
  * @link	https://codeigniter.com
  * @since	Version 1.0.0
  * @filesource
@@ -835,10 +835,7 @@ class CI_Image_lib {
 		imagedestroy($dst_img);
 		imagedestroy($src_img);
 
-		if ($this->dynamic_output !== TRUE)
-		{
-			chmod($this->full_dst_path, $this->file_permissions);
-		}
+		chmod($this->full_dst_path, $this->file_permissions);
 
 		return TRUE;
 	}
@@ -946,6 +943,10 @@ class CI_Image_lib {
 				$cmd_in		= 'pngtopnm';
 				$cmd_out	= 'ppmtopng';
 				break;
+			case 18 :
+				$cmd_in		= 'webptopnm';
+				$cmd_out	= 'ppmtowebp';
+				break;
 		}
 
 		if ($action === 'crop')
@@ -975,7 +976,7 @@ class CI_Image_lib {
 			$cmd_inner = 'pnmscale -xysize '.$this->width.' '.$this->height;
 		}
 
-		$cmd = $this->library_path.$cmd_in.' '.escapeshellarg($this->full_src_path).' | '.$cmd_inner.' | '.$cmd_out.' > '.$this->dest_folder.'netpbm.tmp';
+		$cmd = $this->library_path.$cmd_in.' '.$this->full_src_path.' | '.$cmd_inner.' | '.$cmd_out.' > '.$this->dest_folder.'netpbm.tmp';
 
 		$retval = 1;
 		// exec() might be disabled
@@ -1207,7 +1208,7 @@ class CI_Image_lib {
 		}
 
 		// Build the finalized image
-		if ($wm_img_type === 3)
+		if ($wm_img_type === 3 && function_exists('imagealphablending'))
 		{
 			@imagealphablending($src_img, TRUE);
 		}
@@ -1472,6 +1473,13 @@ class CI_Image_lib {
 				}
 
 				return imagecreatefrompng($path);
+			case 18:
+				if ( ! function_exists('imagecreatefromwebp'))
+				{
+					$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_webp_not_supported'));
+					return FALSE;
+				}
+				return imagecreatefromwebp($path);
 			default:
 				$this->set_error(array('imglib_unsupported_imagecreate'));
 				return FALSE;
@@ -1532,6 +1540,19 @@ class CI_Image_lib {
 					return FALSE;
 				}
 			break;
+			case 18:
+				if ( ! function_exists('imagewebp'))
+				{
+					$this->set_error(array('imglib_unsupported_imagecreate', 'imglib_webp_not_supported'));
+					return FALSE;
+				}
+
+				if ( ! @imagewebp($resource, $this->full_dst_path))
+				{
+					$this->set_error('imglib_save_failed');
+					return FALSE;
+				}
+			break;
 			default:
 				$this->set_error(array('imglib_unsupported_imagecreate'));
 				return FALSE;
@@ -1551,16 +1572,7 @@ class CI_Image_lib {
 	 */
 	public function image_display_gd($resource)
 	{
-		// RFC 6266 allows for multibyte filenames, but only in UTF-8,
-		// so we have to make it conditional ...
-		$filename = basename(empty($this->new_image) ? $this->source_image : $this->new_image);
-		$charset = strtoupper(config_item('charset'));
-		$utf8_filename = ($charset !== 'UTF-8')
-			? get_instance()->utf8->convert_to_utf8($filename, $charset)
-			: $filename;
-		isset($utf8_filename[0]) && $utf8_filename = " filename*=UTF-8''".rawurlencode($utf8_filename);
-
-		header('Content-Disposition: filename="'.$filename.'";'.$utf8_filename);
+		header('Content-Disposition: filename='.$this->source_image.';');
 		header('Content-Type: '.$this->mime_type);
 		header('Content-Transfer-Encoding: binary');
 		header('Last-Modified: '.gmdate('D, d M Y H:i:s', time()).' GMT');
@@ -1573,6 +1585,8 @@ class CI_Image_lib {
 				break;
 			case 3	:	imagepng($resource);
 				break;
+			case 18	:	imagewebp($resource);
+				break;
 			default:	echo 'Unable to display the image';
 				break;
 		}
-- 
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