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[1.6.1] Implement target module/attribute.

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git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1002 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang
2007-04-30 21:19:15 +00:00
parent 72254cd77a
commit 3d978c961d
10 changed files with 118 additions and 4 deletions
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4
library/HTMLPurifier/AttrDef/Enum.php
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@@ -5,6 +5,9 @@ require_once 'HTMLPurifier/AttrDef.php';
// Enum = Enumerated
/**
* Validates a keyword against a list of valid values.
* @warning The case-insensitive compare of this function uses PHP's
* built-in strtolower and ctype_lower functions, which may
* cause problems with international comparisons
*/
class HTMLPurifier_AttrDef_Enum extends HTMLPurifier_AttrDef
{
@@ -34,6 +37,7 @@ class HTMLPurifier_AttrDef_Enum extends HTMLPurifier_AttrDef
function validate($string, $config, &$context) {
$string = trim($string);
if (!$this->case_sensitive) {
// we may want to do full case-insensitive libraries
$string = ctype_lower($string) ? $string : strtolower($string);
}
$result = isset($this->valid_values[$string]);

34
library/HTMLPurifier/AttrDef/HTML/FrameTarget.php Normal file
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@@ -0,0 +1,34 @@
<?php
HTMLPurifier_ConfigSchema::define(
'Attr', 'AllowedFrameTargets', array(), 'lookup',
'Lookup table of all allowed link frame targets. Some commonly used '.
'link targets include _blank, _self, _parent and _top. Values should '.
'be lowercase, as validation will be done in a case-sensitive manner '.
'despite W3C\'s recommendation. XHTML 1.0 Strict does not permit '.
'the target attribute so this directive will have no effect in that '.
'doctype. XHTML 1.1 does not enable the Target module by default, you '.
'will have to manually enable it (see the module documentation for more details.)'
);
require_once 'HTMLPurifier/AttrDef/Enum.php';
/**
* Special-case enum attribute definition that lazy loads allowed frame targets
*/
class HTMLPurifier_AttrDef_HTML_FrameTarget extends HTMLPurifier_AttrDef_Enum
{
var $valid_values = false; // uninitialized value
var $case_sensitive = false;
function HTMLPurifier_AttrDef_HTML_FrameTarget() {}
function validate($string, $config, &$context) {
if ($this->valid_values === false) $this->valid_values = $config->get('Attr', 'AllowedFrameTargets');
return parent::validate($string, $config, $context);
}
}
?>