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

<?php

/**
 * Validates a rel/rev link attribute against a directive of allowed values.
 *
 * @note We cannot use Enum because link types allow multiple
 *       values.
 * @note Assumes link types are ASCII text
 */
class HTMLPurifier_AttrDef_HTML_LinkTypes extends HTMLPurifier_AttrDef
{
    /** Name config attribute to pull. */
    protected $name;

public function __construct($name)
    {
        $configLookup = array(
            'rel' => 'AllowedRel',
            'rev' => 'AllowedRev',
        );
        if (!isset($configLookup[$name])) {
            trigger_error('Unrecognized attribute name for link '.
                'relationship.', E_USER_ERROR);

return;
        }
        $this->name = $configLookup[$name];
    }

public function validate($string, $config, $context)
    {
        $allowed = $config->get('Attr.'.$this->name);
        if (empty($allowed)) {
            return false;
        }

$string = $this->parseCDATA($string);
        $parts = explode(' ', $string);

// lookup to prevent duplicates
        $ret_lookup = array();
        foreach ($parts as $part) {
            $part = strtolower(trim($part));
            if (!isset($allowed[$part])) {
                continue;
            }
            $ret_lookup[$part] = true;
        }

if (empty($ret_lookup)) {
            return false;
        }
        $string = implode(' ', array_keys($ret_lookup));

return $string;
    }
}

// vim: et sw=4 sts=4

[+] ..
[-] FrameTarget.php [edit]
[-] Length.php [edit]
[-] Bool.php [edit]
[-] MultiLength.php [edit]
[-] ID.php [edit]
[-] Pixels.php [edit]
[-] Class.php [edit]
[-] Color.php [edit]
[-] LinkTypes.php [edit]
[-] Nmtokens.php [edit]