From d4949327efa15b492cab1bef3fe074290a328a17 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicolas=20L=C5=93uillet?= <nicolas.loeuillet@gmail.com>
Date: Fri, 21 Feb 2014 15:43:14 +0100
Subject: [add] HTML Purifier added to clean code

---
 .../HTMLPurifier/AttrDef/CSS/Color.php             | 105 +++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Color.php

(limited to 'inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Color.php')

diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Color.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Color.php
new file mode 100644
index 00000000..e553c65e
--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Color.php
@@ -0,0 +1,105 @@
+<?php
+
+/**
+ * Validates Color as defined by CSS.
+ */
+class HTMLPurifier_AttrDef_CSS_Color extends HTMLPurifier_AttrDef
+{
+
+    /**
+     * @param string $color
+     * @param HTMLPurifier_Config $config
+     * @param HTMLPurifier_Context $context
+     * @return bool|string
+     */
+    public function validate($color, $config, $context)
+    {
+        static $colors = null;
+        if ($colors === null) {
+            $colors = $config->get('Core.ColorKeywords');
+        }
+
+        $color = trim($color);
+        if ($color === '') {
+            return false;
+        }
+
+        $lower = strtolower($color);
+        if (isset($colors[$lower])) {
+            return $colors[$lower];
+        }
+
+        if (strpos($color, 'rgb(') !== false) {
+            // rgb literal handling
+            $length = strlen($color);
+            if (strpos($color, ')') !== $length - 1) {
+                return false;
+            }
+            $triad = substr($color, 4, $length - 4 - 1);
+            $parts = explode(',', $triad);
+            if (count($parts) !== 3) {
+                return false;
+            }
+            $type = false; // to ensure that they're all the same type
+            $new_parts = array();
+            foreach ($parts as $part) {
+                $part = trim($part);
+                if ($part === '') {
+                    return false;
+                }
+                $length = strlen($part);
+                if ($part[$length - 1] === '%') {
+                    // handle percents
+                    if (!$type) {
+                        $type = 'percentage';
+                    } elseif ($type !== 'percentage') {
+                        return false;
+                    }
+                    $num = (float)substr($part, 0, $length - 1);
+                    if ($num < 0) {
+                        $num = 0;
+                    }
+                    if ($num > 100) {
+                        $num = 100;
+                    }
+                    $new_parts[] = "$num%";
+                } else {
+                    // handle integers
+                    if (!$type) {
+                        $type = 'integer';
+                    } elseif ($type !== 'integer') {
+                        return false;
+                    }
+                    $num = (int)$part;
+                    if ($num < 0) {
+                        $num = 0;
+                    }
+                    if ($num > 255) {
+                        $num = 255;
+                    }
+                    $new_parts[] = (string)$num;
+                }
+            }
+            $new_triad = implode(',', $new_parts);
+            $color = "rgb($new_triad)";
+        } else {
+            // hexadecimal handling
+            if ($color[0] === '#') {
+                $hex = substr($color, 1);
+            } else {
+                $hex = $color;
+                $color = '#' . $color;
+            }
+            $length = strlen($hex);
+            if ($length !== 3 && $length !== 6) {
+                return false;
+            }
+            if (!ctype_xdigit($hex)) {
+                return false;
+            }
+        }
+        return $color;
+    }
+}
+
+// vim: et sw=4 sts=4
-- 
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