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✎ Editing: URIDefinition.php ← Back

<?php

class HTMLPurifier_URIDefinition extends HTMLPurifier_Definition

{

public $type = 'URI';

protected $filters = array();

protected $postFilters = array();

protected $registeredFilters = array();

/**

* HTMLPurifier_URI object of the base specified at %URI.Base

public $base;

/**

* String host to consider "home" base, derived off of $base

public $host;

/**

* Name of default scheme based on %URI.DefaultScheme and %URI.Base

public $defaultScheme;

public function __construct()

{

$this->registerFilter(new HTMLPurifier_URIFilter_DisableExternal());

$this->registerFilter(new HTMLPurifier_URIFilter_DisableExternalResources());

$this->registerFilter(new HTMLPurifier_URIFilter_DisableResources());

$this->registerFilter(new HTMLPurifier_URIFilter_HostBlacklist());

$this->registerFilter(new HTMLPurifier_URIFilter_SafeIframe());

$this->registerFilter(new HTMLPurifier_URIFilter_MakeAbsolute());

$this->registerFilter(new HTMLPurifier_URIFilter_Munge());

}

public function registerFilter($filter)

{

$this->registeredFilters[$filter->name] = $filter;

}

public function addFilter($filter, $config)

{

$r = $filter->prepare($config);

if ($r === false) return; // null is ok, for backwards compat

if ($filter->post) {

$this->postFilters[$filter->name] = $filter;

} else {

$this->filters[$filter->name] = $filter;

}

protected function doSetup($config)

{

$this->setupMemberVariables($config);

$this->setupFilters($config);

}

protected function setupFilters($config)

{

foreach ($this->registeredFilters as $name => $filter) {

if ($filter->always_load) {

$this->addFilter($filter, $config);

} else {

$conf = $config->get('URI.' . $name);

if ($conf !== false && $conf !== null) {

$this->addFilter($filter, $config);

}

unset($this->registeredFilters);

}

protected function setupMemberVariables($config)

{

$this->host = $config->get('URI.Host');

$base_uri = $config->get('URI.Base');

if (!is_null($base_uri)) {

$parser = new HTMLPurifier_URIParser();

$this->base = $parser->parse($base_uri);

$this->defaultScheme = $this->base->scheme;

if (is_null($this->host)) $this->host = $this->base->host;

}

if (is_null($this->defaultScheme)) $this->defaultScheme = $config->get('URI.DefaultScheme');

}

public function getDefaultScheme($config, $context)

{

return HTMLPurifier_URISchemeRegistry::instance()->getScheme($this->defaultScheme, $config, $context);

}

public function filter(&$uri, $config, $context)

{

foreach ($this->filters as $name => $f) {

$result = $f->filter($uri, $config, $context);

if (!$result) return false;

}

return true;

}

public function postFilter(&$uri, $config, $context)

{

foreach ($this->postFilters as $name => $f) {

$result = $f->filter($uri, $config, $context);

if (!$result) return false;

}

return true;

}

// vim: et sw=4 sts=4

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