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PATH: home / letacommog / letaweb / admin / classes / htmlpurifier / library / HTMLPurifier

<?php

/**
 * Registry for retrieving specific URI scheme validator objects.
 */
class HTMLPurifier_URISchemeRegistry
{
    /**
     * Retrieve sole instance of the registry.
     *
     * @param $prototype Optional prototype to overload sole instance with,
     *                   or bool true to reset to default registry.
     * @note Pass a registry object $prototype with a compatible interface and
     *       the function will copy it and return it all further times.
     */
    public static function instance($prototype = null)
    {
        static $instance = null;
        if ($prototype !== null) {
            $instance = $prototype;
        } elseif ($instance === null || $prototype == true) {
            $instance = new self();
        }

return $instance;
    }

/**
     * Cache of retrieved schemes.
     */
    protected $schemes = array();

/**
     * Retrieves a scheme validator object.
     *
     * @param $scheme String scheme name like http or mailto
     * @param $config HTMLPurifier_Config object
     * @param $config HTMLPurifier_Context object
     */
    public function getScheme($scheme, $config, $context)
    {
        if (!$config) {
            $config = HTMLPurifier_Config::createDefault();
        }

// important, otherwise attacker could include arbitrary file
        $allowed_schemes = $config->get('URI.AllowedSchemes');
        if (!$config->get('URI.OverrideAllowedSchemes') &&
            !isset($allowed_schemes[$scheme])
        ) {
            return;
        }

if (isset($this->schemes[$scheme])) {
            return $this->schemes[$scheme];
        }
        if (!isset($allowed_schemes[$scheme])) {
            return;
        }

$class = 'HTMLPurifier_URIScheme_'.$scheme;
        if (!class_exists($class)) {
            return;
        }
        $this->schemes[$scheme] = new $class();

return $this->schemes[$scheme];
    }

/**
     * Registers a custom scheme to the cache, bypassing reflection.
     *
     * @param $scheme Scheme name
     * @param $scheme_obj HTMLPurifier_URIScheme object
     */
    public function register($scheme, $scheme_obj)
    {
        $this->schemes[$scheme] = $scheme_obj;
    }
}

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[+] ..
[+] ConfigSchema
[-] CSSDefinition.php [edit]
[-] Generator.php [edit]
[-] ElementDef.php [edit]
[-] AttrTypes.php [edit]
[+] ChildDef
[+] AttrDef
[-] ChildDef.php [edit]
[+] Printer
[-] Exception.php [edit]
[-] PercentEncoder.php [edit]
[+] Lexer
[-] IDAccumulator.php [edit]
[-] Token.php [edit]
[+] TagTransform
[-] AttrTransform.php [edit]
[-] Language.php [edit]
[-] Filter.php [edit]
[-] Printer.php [edit]
[-] DefinitionCache.php [edit]
[-] Injector.php [edit]
[-] TokenFactory.php [edit]
[-] URISchemeRegistry.php [edit]
[-] Length.php [edit]
[-] URIParser.php [edit]
[-] AttrCollections.php [edit]
[-] Lexer.php [edit]
[-] HTMLDefinition.php [edit]
[-] Context.php [edit]
[-] DefinitionCacheFactory.php [edit]
[-] Doctype.php [edit]
[+] Strategy
[-] LanguageFactory.php [edit]
[+] Token
[-] TagTransform.php [edit]
[-] AttrValidator.php [edit]
[+] Filter
[-] ErrorCollector.php [edit]
[-] DoctypeRegistry.php [edit]
[-] UnitConverter.php [edit]
[-] EntityParser.php [edit]
[-] URIScheme.php [edit]
[-] Bootstrap.php [edit]
[-] StringHashParser.php [edit]
[+] VarParser
[-] VarParserException.php [edit]
[-] EntityLookup.php [edit]
[-] ErrorStruct.php [edit]
[-] HTMLModule.php [edit]
[-] Definition.php [edit]
[-] PropertyList.php [edit]
[+] URIFilter
[-] Strategy.php [edit]
[-] AttrDef.php [edit]
[+] HTMLModule
[+] URIScheme
[-] Config.php [edit]
[-] HTMLModuleManager.php [edit]
[-] Encoder.php [edit]
[+] AttrTransform
[-] URI.php [edit]
[-] ContentSets.php [edit]
[-] ConfigSchema.php [edit]
[+] EntityLookup
[-] VarParser.php [edit]
[+] Language
[-] PropertyListIterator.php [edit]
[+] DefinitionCache
[-] StringHash.php [edit]
[+] Injector
[-] URIDefinition.php [edit]
[-] URIFilter.php [edit]