1 files changed, 47 insertions, 20 deletions

diff --git a/library/HTMLPurifier/AttrDef/CSS/Color.php b/library/HTMLPurifier/AttrDef/CSS/Color.php
index 07f95a671..16d2a6b98 100644
--- a/library/HTMLPurifier/AttrDef/CSS/Color.php
+++ b/library/HTMLPurifier/AttrDef/CSS/Color.php
@@ -6,29 +6,47 @@
 class HTMLPurifier_AttrDef_CSS_Color extends HTMLPurifier_AttrDef
 {
 
-    public function validate($color, $config, $context) {
-
+    /**
+     * @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 = $config->get('Core.ColorKeywords');
+        if ($colors === null) {
+            $colors = $config->get('Core.ColorKeywords');
+        }
 
         $color = trim($color);
-        if ($color === '') return false;
+        if ($color === '') {
+            return false;
+        }
 
         $lower = strtolower($color);
-        if (isset($colors[$lower])) return $colors[$lower];
+        if (isset($colors[$lower])) {
+            return $colors[$lower];
+        }
 
         if (strpos($color, 'rgb(') !== false) {
             // rgb literal handling
             $length = strlen($color);
-            if (strpos($color, ')') !== $length - 1) return false;
+            if (strpos($color, ')') !== $length - 1) {
+                return false;
+            }
             $triad = substr($color, 4, $length - 4 - 1);
             $parts = explode(',', $triad);
-            if (count($parts) !== 3) return false;
+            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 ($part === '') return false;
+                if ($part === '') {
+                    return false;
+                }
                 $length = strlen($part);
                 if ($part[$length - 1] === '%') {
                     // handle percents
@@ -37,9 +55,13 @@ class HTMLPurifier_AttrDef_CSS_Color extends HTMLPurifier_AttrDef
                     } elseif ($type !== 'percentage') {
                         return false;
                     }
-                    $num = (float) substr($part, 0, $length - 1);
-                    if ($num < 0) $num = 0;
-                    if ($num > 100) $num = 100;
+                    $num = (float)substr($part, 0, $length - 1);
+                    if ($num < 0) {
+                        $num = 0;
+                    }
+                    if ($num > 100) {
+                        $num = 100;
+                    }
                     $new_parts[] = "$num%";
                 } else {
                     // handle integers
@@ -48,10 +70,14 @@ class HTMLPurifier_AttrDef_CSS_Color extends HTMLPurifier_AttrDef
                     } elseif ($type !== 'integer') {
                         return false;
                     }
-                    $num = (int) $part;
-                    if ($num < 0) $num = 0;
-                    if ($num > 255) $num = 255;
-                    $new_parts[] = (string) $num;
+                    $num = (int)$part;
+                    if ($num < 0) {
+                        $num = 0;
+                    }
+                    if ($num > 255) {
+                        $num = 255;
+                    }
+                    $new_parts[] = (string)$num;
                 }
             }
             $new_triad = implode(',', $new_parts);
@@ -65,14 +91,15 @@ class HTMLPurifier_AttrDef_CSS_Color extends HTMLPurifier_AttrDef
                 $color = '#' . $color;
             }
             $length = strlen($hex);
-            if ($length !== 3 && $length !== 6) return false;
-            if (!ctype_xdigit($hex)) return false;
+            if ($length !== 3 && $length !== 6) {
+                return false;
+            }
+            if (!ctype_xdigit($hex)) {
+                return false;
+            }
         }
-
         return $color;
-
     }
-
 }
 
 // vim: et sw=4 sts=4