[add] HTML Purifier added to clean code

[github/wallabag/wallabag.git] / inc / 3rdparty / htmlpurifier / HTMLPurifier / AttrDef / URI.php

diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/URI.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/URI.php
new file mode 100644 (file)
index 0000000..a1097cd
--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/URI.php
@@ -0,0 +1,111 @@
+<?php\r
+\r
+/**\r
+ * Validates a URI as defined by RFC 3986.\r
+ * @note Scheme-specific mechanics deferred to HTMLPurifier_URIScheme\r
+ */\r
+class HTMLPurifier_AttrDef_URI extends HTMLPurifier_AttrDef\r
+{\r
+\r
+    /**\r
+     * @type HTMLPurifier_URIParser\r
+     */\r
+    protected $parser;\r
+\r
+    /**\r
+     * @type bool\r
+     */\r
+    protected $embedsResource;\r
+\r
+    /**\r
+     * @param bool $embeds_resource Does the URI here result in an extra HTTP request?\r
+     */\r
+    public function __construct($embeds_resource = false)\r
+    {\r
+        $this->parser = new HTMLPurifier_URIParser();\r
+        $this->embedsResource = (bool)$embeds_resource;\r
+    }\r
+\r
+    /**\r
+     * @param string $string\r
+     * @return HTMLPurifier_AttrDef_URI\r
+     */\r
+    public function make($string)\r
+    {\r
+        $embeds = ($string === 'embedded');\r
+        return new HTMLPurifier_AttrDef_URI($embeds);\r
+    }\r
+\r
+    /**\r
+     * @param string $uri\r
+     * @param HTMLPurifier_Config $config\r
+     * @param HTMLPurifier_Context $context\r
+     * @return bool|string\r
+     */\r
+    public function validate($uri, $config, $context)\r
+    {\r
+        if ($config->get('URI.Disable')) {\r
+            return false;\r
+        }\r
+\r
+        $uri = $this->parseCDATA($uri);\r
+\r
+        // parse the URI\r
+        $uri = $this->parser->parse($uri);\r
+        if ($uri === false) {\r
+            return false;\r
+        }\r
+\r
+        // add embedded flag to context for validators\r
+        $context->register('EmbeddedURI', $this->embedsResource);\r
+\r
+        $ok = false;\r
+        do {\r
+\r
+            // generic validation\r
+            $result = $uri->validate($config, $context);\r
+            if (!$result) {\r
+                break;\r
+            }\r
+\r
+            // chained filtering\r
+            $uri_def = $config->getDefinition('URI');\r
+            $result = $uri_def->filter($uri, $config, $context);\r
+            if (!$result) {\r
+                break;\r
+            }\r
+\r
+            // scheme-specific validation\r
+            $scheme_obj = $uri->getSchemeObj($config, $context);\r
+            if (!$scheme_obj) {\r
+                break;\r
+            }\r
+            if ($this->embedsResource && !$scheme_obj->browsable) {\r
+                break;\r
+            }\r
+            $result = $scheme_obj->validate($uri, $config, $context);\r
+            if (!$result) {\r
+                break;\r
+            }\r
+\r
+            // Post chained filtering\r
+            $result = $uri_def->postFilter($uri, $config, $context);\r
+            if (!$result) {\r
+                break;\r
+            }\r
+\r
+            // survived gauntlet\r
+            $ok = true;\r
+\r
+        } while (false);\r
+\r
+        $context->destroy('EmbeddedURI');\r
+        if (!$ok) {\r
+            return false;\r
+        }\r
+        // back to string\r
+        return $uri->toString();\r
+    }\r
+}\r
+\r
+// vim: et sw=4 sts=4\r