Initial commit

Signed-off-by: Luke Tainton <luke@tainton.uk>

hesk/inc/secimg.inc.php

@@ -0,0 +1,82 @@
+<?php
+/**
+ *
+ * This file is part of HESK - PHP Help Desk Software.
+ *
+ * (c) Copyright Klemen Stirn. All rights reserved.
+ * https://www.hesk.com
+ *
+ * For the full copyright and license agreement information visit
+ * https://www.hesk.com/eula.php
+ *
+ */
+
+/* Check if this is a valid include */
+if (!defined('IN_SCRIPT')) {die('Invalid attempt');}
+
+class PJ_SecurityImage
+{
+
+        function __construct($key)
+        {
+                $this->code = '';
+                $this->key = $key;
+        } // End PJ_SecurityImage
+
+        function encrypt($plain_text)
+        {
+            $this->code = trim(sha1($plain_text.$this->key));
+        } // End encrypt
+
+        function checkCode($mystring,$checksum)
+        {
+            $this->encrypt($mystring);
+            if ($this->code == $checksum)
+                return true;
+            else
+                return false;
+        } // End checkCode
+
+        function printImage($random_number)
+        {
+            $im = @imagecreate(150, 40) or die("Cannot Initialize new GD image stream");
+            $background_color = imagecolorallocate($im, mt_rand(0,100), mt_rand(0,100), mt_rand(0,100));
+
+			for ($i=0;$i<strlen($random_number);$i++)
+			{
+            	$text_color = imagecolorallocate($im, mt_rand(180,255), mt_rand(180,255), mt_rand(100,255));
+				$display = substr($random_number,$i,1);
+				$x = ($i*30) + mt_rand(3,16);
+				$y = mt_rand(3,26);
+				imagestring($im, 5, $x, $y, $display, $text_color);
+			}
+
+			if ( function_exists('imagejpeg') )
+			{
+				header("Content-type: image/jpeg");
+				imagejpeg($im);
+			}
+			elseif ( function_exists('imagepng') )
+			{
+				header("Content-type: image/png");
+				imagepng($im);
+			}
+			elseif ( function_exists('imagegif') )
+			{
+				header("Content-type: image/gif");
+				imagegif($im);
+			}
+			else
+			{
+				die("GD was not compiled with JPEG or PNG support");
+			}
+
+            imagedestroy($im);
+        } // End printImage
+
+        function get()
+        {
+            return $this->code;
+        } // End get
+
+} // End class PJ_SecurityImage