From ec5d8f568a48b578234d736a21e151b315711a82 Mon Sep 17 00:00:00 2001
From: Pim van den Berg
Date: Sat, 5 Jun 2010 11:47:24 +0200
Subject: remove php gd dependency

Image error messages were shown using PHP GD. People who haven't installed
PHP GD don't understand what is going on when an image is not shown. It is
replaced by a static image referring to the error log for more information.
---
 graph.php | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

(limited to 'graph.php')

diff --git a/graph.php b/graph.php
index effecef..e170598 100644
--- a/graph.php
+++ b/graph.php
@@ -8,29 +8,17 @@ $width = empty($_GET['x']) ? $CONFIG['width'] : $_GET['x'];
 $heigth = empty($_GET['y']) ? $CONFIG['heigth'] : $_GET['y'];
 
 if (validate_get($_GET['h'], 'host') === NULL) {
-	die_img('Error: plugin contains unknown characters.');
-	exit;
+	error_log('CGP Error: plugin contains unknown characters');
+	error_image();
 }
 
 if (!file_exists($CONFIG['webdir'].'/plugin/'.$plugin.'.php')) {
-	die_img(sprintf('Error: plugin not available (%s).', $plugin));
-	exit;
+	error_log(sprintf('CGP Error: plugin "%s" is not available', $plugin));
+	error_image();
 }
 
 # load plugin
 include $CONFIG['webdir'].'/plugin/'.$plugin.'.php';
 
 
-function die_img($msg) {
-	header("Content-Type: image/png");
-	$image = ImageCreatetruecolor(300, 30);
-	$black = ImageColorAllocate($image, 0, 0, 0);
-	$white = ImageColorAllocate($image, 255, 255, 255);
-	imagefill($image, 0, 0, $white);
-	imagerectangle($image, 0, 0, 299, 29, $black);
-	imagestring($image, 2, 10, 9, $msg, $black);
-	imagepng($image);
-	imagedestroy($image);
-}
-
 ?>
-- 
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