mirror of
https://github.com/friendica/friendica
synced 2024-11-10 17:02:53 +00:00
103 lines
3.4 KiB
PHP
103 lines
3.4 KiB
PHP
<?php
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class HTMLPurifier_DoctypeRegistry
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{
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/**
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* Hash of doctype names to doctype objects
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*/
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protected $doctypes;
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/**
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* Lookup table of aliases to real doctype names
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*/
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protected $aliases;
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/**
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* Registers a doctype to the registry
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* @note Accepts a fully-formed doctype object, or the
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* parameters for constructing a doctype object
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* @param $doctype Name of doctype or literal doctype object
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* @param $modules Modules doctype will load
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* @param $modules_for_modes Modules doctype will load for certain modes
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* @param $aliases Alias names for doctype
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* @return Editable registered doctype
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*/
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public function register($doctype, $xml = true, $modules = array(),
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$tidy_modules = array(), $aliases = array(), $dtd_public = null, $dtd_system = null
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) {
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if (!is_array($modules)) $modules = array($modules);
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if (!is_array($tidy_modules)) $tidy_modules = array($tidy_modules);
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if (!is_array($aliases)) $aliases = array($aliases);
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if (!is_object($doctype)) {
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$doctype = new HTMLPurifier_Doctype(
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$doctype, $xml, $modules, $tidy_modules, $aliases, $dtd_public, $dtd_system
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);
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}
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$this->doctypes[$doctype->name] = $doctype;
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$name = $doctype->name;
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// hookup aliases
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foreach ($doctype->aliases as $alias) {
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if (isset($this->doctypes[$alias])) continue;
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$this->aliases[$alias] = $name;
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}
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// remove old aliases
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if (isset($this->aliases[$name])) unset($this->aliases[$name]);
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return $doctype;
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}
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/**
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* Retrieves reference to a doctype of a certain name
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* @note This function resolves aliases
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* @note When possible, use the more fully-featured make()
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* @param $doctype Name of doctype
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* @return Editable doctype object
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*/
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public function get($doctype) {
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if (isset($this->aliases[$doctype])) $doctype = $this->aliases[$doctype];
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if (!isset($this->doctypes[$doctype])) {
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trigger_error('Doctype ' . htmlspecialchars($doctype) . ' does not exist', E_USER_ERROR);
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$anon = new HTMLPurifier_Doctype($doctype);
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return $anon;
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}
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return $this->doctypes[$doctype];
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}
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/**
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* Creates a doctype based on a configuration object,
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* will perform initialization on the doctype
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* @note Use this function to get a copy of doctype that config
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* can hold on to (this is necessary in order to tell
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* Generator whether or not the current document is XML
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* based or not).
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*/
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public function make($config) {
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return clone $this->get($this->getDoctypeFromConfig($config));
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}
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/**
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* Retrieves the doctype from the configuration object
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*/
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public function getDoctypeFromConfig($config) {
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// recommended test
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$doctype = $config->get('HTML.Doctype');
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if (!empty($doctype)) return $doctype;
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$doctype = $config->get('HTML.CustomDoctype');
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if (!empty($doctype)) return $doctype;
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// backwards-compatibility
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if ($config->get('HTML.XHTML')) {
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$doctype = 'XHTML 1.0';
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} else {
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$doctype = 'HTML 4.01';
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}
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if ($config->get('HTML.Strict')) {
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$doctype .= ' Strict';
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} else {
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$doctype .= ' Transitional';
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}
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return $doctype;
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}
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}
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// vim: et sw=4 sts=4
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