From a0052f0176bd079e6a94baec59fea2ec5a8d651e Mon Sep 17 00:00:00 2001
From: friendica <info@friendica.com>
Date: Thu, 1 Jan 2015 22:18:27 -0800
Subject: htmlpurifier update - compatibility issue with language library
 autoloader

---
 library/HTMLPurifier/URIFilter.php | 45 +++++++++++++++++++++++++++++++-------
 1 file changed, 37 insertions(+), 8 deletions(-)

(limited to 'library/HTMLPurifier/URIFilter.php')

diff --git a/library/HTMLPurifier/URIFilter.php b/library/HTMLPurifier/URIFilter.php
index c116f93df..09724e9f4 100644
--- a/library/HTMLPurifier/URIFilter.php
+++ b/library/HTMLPurifier/URIFilter.php
@@ -4,7 +4,21 @@
  * Chainable filters for custom URI processing.
  *
  * These filters can perform custom actions on a URI filter object,
- * including transformation or blacklisting.
+ * including transformation or blacklisting.  A filter named Foo
+ * must have a corresponding configuration directive %URI.Foo,
+ * unless always_load is specified to be true.
+ *
+ * The following contexts may be available while URIFilters are being
+ * processed:
+ *
+ *      - EmbeddedURI: true if URI is an embedded resource that will
+ *        be loaded automatically on page load
+ *      - CurrentToken: a reference to the token that is currently
+ *        being processed
+ *      - CurrentAttr: the name of the attribute that is currently being
+ *        processed
+ *      - CurrentCSSProperty: the name of the CSS property that is
+ *        currently being processed (if applicable)
  *
  * @warning This filter is called before scheme object validation occurs.
  *          Make sure, if you require a specific scheme object, you
@@ -15,31 +29,46 @@ abstract class HTMLPurifier_URIFilter
 {
 
     /**
-     * Unique identifier of filter
+     * Unique identifier of filter.
+     * @type string
      */
     public $name;
 
     /**
      * True if this filter should be run after scheme validation.
+     * @type bool
      */
     public $post = false;
 
     /**
-     * Performs initialization for the filter
+     * True if this filter should always be loaded.
+     * This permits a filter to be named Foo without the corresponding
+     * %URI.Foo directive existing.
+     * @type bool
+     */
+    public $always_load = false;
+
+    /**
+     * Performs initialization for the filter.  If the filter returns
+     * false, this means that it shouldn't be considered active.
+     * @param HTMLPurifier_Config $config
+     * @return bool
      */
-    public function prepare($config) {return true;}
+    public function prepare($config)
+    {
+        return true;
+    }
 
     /**
      * Filter a URI object
-     * @param $uri Reference to URI object variable
-     * @param $config Instance of HTMLPurifier_Config
-     * @param $context Instance of HTMLPurifier_Context
+     * @param HTMLPurifier_URI $uri Reference to URI object variable
+     * @param HTMLPurifier_Config $config
+     * @param HTMLPurifier_Context $context
      * @return bool Whether or not to continue processing: false indicates
      *         URL is no good, true indicates continue processing. Note that
      *         all changes are committed directly on the URI object
      */
     abstract public function filter(&$uri, $config, $context);
-
 }
 
 // vim: et sw=4 sts=4
-- 
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