[3.0.0] [BACKPORT] Make CSS properties case-insensitive

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1461 48356398-32a2-884e-a903-53898d9a118a

NEWS

@@ -15,6 +15,7 @@ NEWS ( CHANGELOG and HISTORY )                                     HTMLPurifier
   to it.
   + Visibility declarations added
   + Constructor methods renamed to __construct()
+! CSS properties are no case-insensitive
 
 2.1.3, released 2007-11-05
 ! tests/multitest.php allows you to test multiple versions by running

library/HTMLPurifier/AttrDef/CSS.php

@@ -38,7 +38,20 @@ class HTMLPurifier_AttrDef_CSS extends HTMLPurifier_AttrDef
             list($property, $value) = explode(':', $declaration, 2);
             $property = trim($property);
             $value    = trim($value);
-            if (!isset($definition->info[$property])) continue;
+            $ok = false;
+            do {
+                if (isset($definition->info[$property])) {
+                    $ok = true;
+                    break;
+                }
+                if (ctype_lower($property)) break;
+                $property = strtolower($property);
+                if (isset($definition->info[$property])) {
+                    $ok = true;
+                    break;
+                }
+            } while(0);
+            if (!$ok) continue;
             // inefficient call, since the validator will do this again
             if (strtolower(trim($value)) !== 'inherit') {
                 // inherit works for everything (but only on the base property)

tests/HTMLPurifier/AttrDef/CSSTest.php

@@ -107,6 +107,9 @@ class HTMLPurifier_AttrDef_CSSTest extends HTMLPurifier_AttrDefHarness
         $this->assertDef(' font-weight : bold; color : #ff0000',
                          'font-weight:bold;color:#ff0000;');
         
+        // case-insensitivity
+        $this->assertDef('FLOAT:LEFT;', 'float:left;');
+        
     }
     
 }