Made file preview (original image or png with filename as text). Added error image as png with error text.

1 files changed, 12 insertions, 13 deletions

diff --git a/forum/utils/imagecache.php b/forum/utils/imagecache.php
index ac3ebc3..0c18e1a 100644
--- a/forum/utils/imagecache.php
+++ b/forum/utils/imagecache.php
@@ -22,17 +22,16 @@ function rescale($image) {
 	return $image_p;
 }
 
-function errorImage($filename)
+function errorImage($message)
 {
-	/*
-	 header('Content-Description: File Transfer');
-	 header('Content-Type: image/jpeg');
-	 header('Content-Length: ' . filesize($fullfilename));
-	 header('Content-Disposition: inline; filename=' . basename($filename));
-	 readfile($fullfilename); 
-	*/
-	echo "Error fetching image: " . $filename;
-	die(404);
+	header("Content-type: image/png");
+	$im = @imagecreate(8 + strlen($message) * 5, 20)
+		or die("Cannot Initialize new GD image stream");
+	$background_color = imagecolorallocate($im, 0, 0, 0);
+	$text_color = imagecolorallocate($im, 233, 14, 91);
+	imagestring($im, 1, 5, 5,  $message, $text_color);
+	imagepng($im);
+	imagedestroy($im);
 }
 
 function getCachedImage($filename)
@@ -63,21 +62,21 @@ function getCachedImage($filename)
 			case ".jpeg":
 			case ".jpg":
 				$image = imagecreatefromjpeg(urldecode($filename));
-				if(!$image) errorImage($filename);
+				if(!$image) errorImage("Could not read: ". $filename);
 				$image = rescale($image);
 				imagejpeg($image, $fullfilename, 90);
 				break;
 
 			case ".gif":
 				$image = imagecreatefromgif(urldecode($filename));
-				if(!$image) errorImage($filename);
+				if(!$image) errorImage("Could not read: ". $filename);
 				$image = rescale($image);
 				imagegif($image, $fullfilename);
 				break;
 
 			case ".png":
 				$image = imagecreatefrompng(urldecode($filename));
-				if(!$image) errorImage($filename);
+				if(!$image) errorImage("Could not read: ". $filename);
 				$image = rescale($image);
 				imagepng($image, $fullfilename);
 				break;