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Diffstat (limited to 'library/vendor/HTMLPurifier/ConfigSchema.php')
| -rw-r--r-- | library/vendor/HTMLPurifier/ConfigSchema.php | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/library/vendor/HTMLPurifier/ConfigSchema.php b/library/vendor/HTMLPurifier/ConfigSchema.php new file mode 100644 index 0000000..c3fe8cd --- /dev/null +++ b/library/vendor/HTMLPurifier/ConfigSchema.php @@ -0,0 +1,176 @@ +<?php + +/** + * Configuration definition, defines directives and their defaults. + */ +class HTMLPurifier_ConfigSchema +{ + /** + * Defaults of the directives and namespaces. + * @type array + * @note This shares the exact same structure as HTMLPurifier_Config::$conf + */ + public $defaults = array(); + + /** + * The default property list. Do not edit this property list. + * @type array + */ + public $defaultPlist; + + /** + * Definition of the directives. + * The structure of this is: + * + * array( + * 'Namespace' => array( + * 'Directive' => new stdClass(), + * ) + * ) + * + * The stdClass may have the following properties: + * + * - If isAlias isn't set: + * - type: Integer type of directive, see HTMLPurifier_VarParser for definitions + * - allow_null: If set, this directive allows null values + * - aliases: If set, an associative array of value aliases to real values + * - allowed: If set, a lookup array of allowed (string) values + * - If isAlias is set: + * - namespace: Namespace this directive aliases to + * - name: Directive name this directive aliases to + * + * In certain degenerate cases, stdClass will actually be an integer. In + * that case, the value is equivalent to an stdClass with the type + * property set to the integer. If the integer is negative, type is + * equal to the absolute value of integer, and allow_null is true. + * + * This class is friendly with HTMLPurifier_Config. If you need introspection + * about the schema, you're better of using the ConfigSchema_Interchange, + * which uses more memory but has much richer information. + * @type array + */ + public $info = array(); + + /** + * Application-wide singleton + * @type HTMLPurifier_ConfigSchema + */ + protected static $singleton; + + public function __construct() + { + $this->defaultPlist = new HTMLPurifier_PropertyList(); + } + + /** + * Unserializes the default ConfigSchema. + * @return HTMLPurifier_ConfigSchema + */ + public static function makeFromSerial() + { + $contents = file_get_contents(HTMLPURIFIER_PREFIX . '/HTMLPurifier/ConfigSchema/schema.ser'); + $r = unserialize($contents); + if (!$r) { + $hash = sha1($contents); + trigger_error("Unserialization of configuration schema failed, sha1 of file was $hash", E_USER_ERROR); + } + return $r; + } + + /** + * Retrieves an instance of the application-wide configuration definition. + * @param HTMLPurifier_ConfigSchema $prototype + * @return HTMLPurifier_ConfigSchema + */ + public static function instance($prototype = null) + { + if ($prototype !== null) { + HTMLPurifier_ConfigSchema::$singleton = $prototype; + } elseif (HTMLPurifier_ConfigSchema::$singleton === null || $prototype === true) { + HTMLPurifier_ConfigSchema::$singleton = HTMLPurifier_ConfigSchema::makeFromSerial(); + } + return HTMLPurifier_ConfigSchema::$singleton; + } + + /** + * Defines a directive for configuration + * @warning Will fail of directive's namespace is defined. + * @warning This method's signature is slightly different from the legacy + * define() static method! Beware! + * @param string $key Name of directive + * @param mixed $default Default value of directive + * @param string $type Allowed type of the directive. See + * HTMLPurifier_VarParser::$types for allowed values + * @param bool $allow_null Whether or not to allow null values + */ + public function add($key, $default, $type, $allow_null) + { + $obj = new stdClass(); + $obj->type = is_int($type) ? $type : HTMLPurifier_VarParser::$types[$type]; + if ($allow_null) { + $obj->allow_null = true; + } + $this->info[$key] = $obj; + $this->defaults[$key] = $default; + $this->defaultPlist->set($key, $default); + } + + /** + * Defines a directive value alias. + * + * Directive value aliases are convenient for developers because it lets + * them set a directive to several values and get the same result. + * @param string $key Name of Directive + * @param array $aliases Hash of aliased values to the real alias + */ + public function addValueAliases($key, $aliases) + { + if (!isset($this->info[$key]->aliases)) { + $this->info[$key]->aliases = array(); + } + foreach ($aliases as $alias => $real) { + $this->info[$key]->aliases[$alias] = $real; + } + } + + /** + * Defines a set of allowed values for a directive. + * @warning This is slightly different from the corresponding static + * method definition. + * @param string $key Name of directive + * @param array $allowed Lookup array of allowed values + */ + public function addAllowedValues($key, $allowed) + { + $this->info[$key]->allowed = $allowed; + } + + /** + * Defines a directive alias for backwards compatibility + * @param string $key Directive that will be aliased + * @param string $new_key Directive that the alias will be to + */ + public function addAlias($key, $new_key) + { + $obj = new stdClass; + $obj->key = $new_key; + $obj->isAlias = true; + $this->info[$key] = $obj; + } + + /** + * Replaces any stdClass that only has the type property with type integer. + */ + public function postProcess() + { + foreach ($this->info as $key => $v) { + if (count((array) $v) == 1) { + $this->info[$key] = $v->type; + } elseif (count((array) $v) == 2 && isset($v->allow_null)) { + $this->info[$key] = -$v->type; + } + } + } +} + +// vim: et sw=4 sts=4 |