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[2.1.0] Friendly error messages for when injector needs a tag that's not allowed added

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git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1265 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang
2007-06-28 13:06:15 +00:00
parent 9dd7c8c7dd
commit a96b5bf612
9 changed files with 73 additions and 10 deletions
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34
library/HTMLPurifier/Injector.php
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@@ -8,6 +8,11 @@
class HTMLPurifier_Injector
{
/**
* Advisory name of injector, this is for friendly error messages
*/
var $name;
/**
* Amount of tokens the injector needs to skip + 1. Because
* the decrement is the first thing that happens, this needs to
@@ -40,16 +45,37 @@ class HTMLPurifier_Injector
var $inputIndex;
/**
* Prepares the injector by giving it the config and context objects,
* so that important variables can be extracted and not passed via
* parameter constantly. Remember: always instantiate a new injector
* when handling a set of HTML.
* Array of elements and attributes this injector creates and therefore
* need to be allowed by the definition. Takes form of
* array('element' => array('attr', 'attr2'), 'element2')
*/
var $needed = array();
/**
* Prepares the injector by giving it the config and context objects:
* this allows references to important variables to be made within
* the injector. This function also checks if the HTML environment
* will work with the Injector: if p tags are not allowed, the
* Auto-Paragraphing injector should not be enabled.
* @param $config Instance of HTMLPurifier_Config
* @param $context Instance of HTMLPurifier_Context
* @return Boolean false if success, string of missing needed element/attribute if failure
*/
function prepare($config, &$context) {
$this->htmlDefinition = $config->getHTMLDefinition();
// perform $needed checks
foreach ($this->needed as $element => $attributes) {
if (is_int($element)) $element = $attributes;
if (!isset($this->htmlDefinition->info[$element])) return $element;
if (!is_array($attributes)) continue;
foreach ($attributes as $name) {
if (!isset($this->htmlDefinition->info[$element]->attr[$name])) return "$element.$name";
}
}
$this->currentNesting =& $context->get('CurrentNesting');
$this->inputTokens =& $context->get('InputTokens');
$this->inputIndex =& $context->get('InputIndex');
return false;
}
/**