Developer
<?php
/**
* Parser that uses PHP 5's DOM extension (part of the core).
*
* In PHP 5, the DOM XML extension was revamped into DOM and added to the core.
* It gives us a forgiving HTML parser, which we use to transform the HTML
* into a DOM, and then into the tokens. It is blazingly fast (for large
* documents, it performs twenty times faster than
* HTMLPurifier_Lexer_DirectLex,and is the default choice for PHP 5.
*
* @note Any empty elements will have empty tokens associated with them, even if
* this is prohibited by the spec. This is cannot be fixed until the spec
* comes into play.
*
* @note PHP's DOM extension does not actually parse any entities, we use
* our own function to do that.
*
* @warning DOM tends to drop whitespace, which may wreak havoc on indenting.
* If this is a huge problem, due to the fact that HTML is hand
* edited and you are unable to get a parser cache that caches the
* the output of HTML Purifier while keeping the original HTML lying
* around, you may want to run Tidy on the resulting output or use
* HTMLPurifier_DirectLex
*/
class HTMLPurifier_Lexer_DOMLex extends HTMLPurifier_Lexer
{
/**
* @type HTMLPurifier_TokenFactory
*/
private $factory;
public function __construct()
{
// setup the factory
parent::__construct();
$this->factory = new HTMLPurifier_TokenFactory();
}
/**
* @param string $html
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return HTMLPurifier_Token[]
*/
public function tokenizeHTML($html, $config, $context)
{
$html = $this->normalize($html, $config, $context);
// attempt to armor stray angled brackets that cannot possibly
// form tags and thus are probably being used as emoticons
if ($config->get('Core.AggressivelyFixLt')) {
$char = '[^a-z!\/]';
$comment = "/<!--(.*?)(-->|\z)/is";
$html = preg_replace_callback($comment, array($this, 'callbackArmorCommentEntities'), $html);
do {
$old = $html;
$html = preg_replace("/<($char)/i", '<\\1', $html);
} while ($html !== $old);
$html = preg_replace_callback($comment, array($this, 'callbackUndoCommentSubst'), $html); // fix comments
}
// preprocess html, essential for UTF-8
$html = $this->wrapHTML($html, $config, $context);
$doc = new DOMDocument();
$doc->encoding = 'UTF-8'; // theoretically, the above has this covered
$options = 0;
if ($config->get('Core.AllowParseManyTags') && defined('LIBXML_PARSEHUGE')) {
$options |= LIBXML_PARSEHUGE;
}
set_error_handler(array($this, 'muteErrorHandler'));
// loadHTML() fails on PHP 5.3 when second parameter is given
if ($options) {
$doc->loadHTML($html, $options);
} else {
$doc->loadHTML($html);
}
restore_error_handler();
$body = $doc->getElementsByTagName('html')->item(0)-> // <html>
getElementsByTagName('body')->item(0); // <body>
$div = $body->getElementsByTagName('div')->item(0); // <div>
$tokens = array();
$this->tokenizeDOM($div, $tokens, $config);
// If the div has a sibling, that means we tripped across
// a premature </div> tag. So remove the div we parsed,
// and then tokenize the rest of body. We can't tokenize
// the sibling directly as we'll lose the tags in that case.
if ($div->nextSibling) {
$body->removeChild($div);
$this->tokenizeDOM($body, $tokens, $config);
}
return $tokens;
}
/**
* Iterative function that tokenizes a node, putting it into an accumulator.
* To iterate is human, to recurse divine - L. Peter Deutsch
* @param DOMNode $node DOMNode to be tokenized.
* @param HTMLPurifier_Token[] $tokens Array-list of already tokenized tokens.
*/
protected function tokenizeDOM($node, &$tokens, $config)
{
$level = 0;
$nodes = array($level => new HTMLPurifier_Queue(array($node)));
$closingNodes = array();
do {
while (!$nodes[$level]->isEmpty()) {
$node = $nodes[$level]->shift(); // FIFO
$collect = $level > 0 ? true : false;
$needEndingTag = $this->createStartNode($node, $tokens, $collect, $config);
if ($needEndingTag) {
$closingNodes[$level][] = $node;
}
if ($node->childNodes && $node->childNodes->length) {
$level++;
$nodes[$level] = new HTMLPurifier_Queue();
foreach ($node->childNodes as $childNode) {
$nodes[$level]->push($childNode);
}
}
}
$level--;
if ($level && isset($closingNodes[$level])) {
while ($node = array_pop($closingNodes[$level])) {
$this->createEndNode($node, $tokens);
}
}
} while ($level > 0);
}
/**
* Portably retrieve the tag name of a node; deals with older versions
* of libxml like 2.7.6
* @param DOMNode $node
*/
protected function getTagName($node)
{
if (isset($node->tagName)) {
return $node->tagName;
} else if (isset($node->nodeName)) {
return $node->nodeName;
} else if (isset($node->localName)) {
return $node->localName;
}
return null;
}
/**
* Portably retrieve the data of a node; deals with older versions
* of libxml like 2.7.6
* @param DOMNode $node
*/
protected function getData($node)
{
if (isset($node->data)) {
return $node->data;
} else if (isset($node->nodeValue)) {
return $node->nodeValue;
} else if (isset($node->textContent)) {
return $node->textContent;
}
return null;
}
/**
* @param DOMNode $node DOMNode to be tokenized.
* @param HTMLPurifier_Token[] $tokens Array-list of already tokenized tokens.
* @param bool $collect Says whether or start and close are collected, set to
* false at first recursion because it's the implicit DIV
* tag you're dealing with.
* @return bool if the token needs an endtoken
* @todo data and tagName properties don't seem to exist in DOMNode?
*/
protected function createStartNode($node, &$tokens, $collect, $config)
{
// intercept non element nodes. WE MUST catch all of them,
// but we're not getting the character reference nodes because
// those should have been preprocessed
if ($node->nodeType === XML_TEXT_NODE) {
$data = $this->getData($node); // Handle variable data property
if ($data !== null) {
$tokens[] = $this->factory->createText($data);
}
return false;
} elseif ($node->nodeType === XML_CDATA_SECTION_NODE) {
// undo libxml's special treatment of <script> and <style> tags
$last = end($tokens);
$data = $node->data;
// (note $node->tagname is already normalized)
if ($last instanceof HTMLPurifier_Token_Start && ($last->name == 'script' || $last->name == 'style')) {
$new_data = trim($data);
if (substr($new_data, 0, 4) === '<!--') {
$data = substr($new_data, 4);
if (substr($data, -3) === '-->') {
$data = substr($data, 0, -3);
} else {
// Highly suspicious! Not sure what to do...
}
}
}
$tokens[] = $this->factory->createText($this->parseText($data, $config));
return false;
} elseif ($node->nodeType === XML_COMMENT_NODE) {
// this is code is only invoked for comments in script/style in versions
// of libxml pre-2.6.28 (regular comments, of course, are still
// handled regularly)
$tokens[] = $this->factory->createComment($node->data);
return false;
} elseif ($node->nodeType !== XML_ELEMENT_NODE) {
// not-well tested: there may be other nodes we have to grab
return false;
}
$attr = $node->hasAttributes() ? $this->transformAttrToAssoc($node->attributes) : array();
$tag_name = $this->getTagName($node); // Handle variable tagName property
if (empty($tag_name)) {
return (bool) $node->childNodes->length;
}
// We still have to make sure that the element actually IS empty
if (!$node->childNodes->length) {
if ($collect) {
$tokens[] = $this->factory->createEmpty($tag_name, $attr);
}
return false;
} else {
if ($collect) {
$tokens[] = $this->factory->createStart($tag_name, $attr);
}
return true;
}
}
/**
* @param DOMNode $node
* @param HTMLPurifier_Token[] $tokens
*/
protected function createEndNode($node, &$tokens)
{
$tag_name = $this->getTagName($node); // Handle variable tagName property
$tokens[] = $this->factory->createEnd($tag_name);
}
/**
* Converts a DOMNamedNodeMap of DOMAttr objects into an assoc array.
*
* @param DOMNamedNodeMap $node_map DOMNamedNodeMap of DOMAttr objects.
* @return array Associative array of attributes.
*/
protected function transformAttrToAssoc($node_map)
{
// NamedNodeMap is documented very well, so we're using undocumented
// features, namely, the fact that it implements Iterator and
// has a ->length attribute
if ($node_map->length === 0) {
return array();
}
$array = array();
foreach ($node_map as $attr) {
$array[$attr->name] = $attr->value;
}
return $array;
}
/**
* An error handler that mutes all errors
* @param int $errno
* @param string $errstr
*/
public function muteErrorHandler($errno, $errstr)
{
}
/**
* Callback function for undoing escaping of stray angled brackets
* in comments
* @param array $matches
* @return string
*/
public function callbackUndoCommentSubst($matches)
{
return '<!--' . strtr($matches[1], array('&' => '&', '<' => '<')) . $matches[2];
}
/**
* Callback function that entity-izes ampersands in comments so that
* callbackUndoCommentSubst doesn't clobber them
* @param array $matches
* @return string
*/
public function callbackArmorCommentEntities($matches)
{
return '<!--' . str_replace('&', '&', $matches[1]) . $matches[2];
}
/**
* Wraps an HTML fragment in the necessary HTML
* @param string $html
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return string
*/
protected function wrapHTML($html, $config, $context, $use_div = true)
{
$def = $config->getDefinition('HTML');
$ret = '';
if (!empty($def->doctype->dtdPublic) || !empty($def->doctype->dtdSystem)) {
$ret .= '<!DOCTYPE html ';
if (!empty($def->doctype->dtdPublic)) {
$ret .= 'PUBLIC "' . $def->doctype->dtdPublic . '" ';
}
if (!empty($def->doctype->dtdSystem)) {
$ret .= '"' . $def->doctype->dtdSystem . '" ';
}
$ret .= '>';
}
$ret .= '<html><head>';
$ret .= '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
// No protection if $html contains a stray </div>!
$ret .= '</head><body>';
if ($use_div) $ret .= '<div>';
$ret .= $html;
if ($use_div) $ret .= '</div>';
$ret .= '</body></html>';
return $ret;
}
}
// vim: et sw=4 sts=4
Developer
The Kueue Pay Payment Gateway is an innovative technology that facilitates seamless and secure transactions between merchants and their customers. It enables businesses to accept debit and credit card payments both online and in physical stores.
The Kueue Pay Payment Gateway acts as a bridge between a merchant’s website or point-of-sale system and the payment processing network. It securely transmits payment information, authorizes transactions, and provides real-time status updates.
The Kueue Pay Developer API empowers developers and entrepreneurs to integrate the Kueue Pay Payment Gateway directly into their websites or applications. This streamlines the payment process for customers and provides businesses with a customizable and efficient payment solution.
To access the Kueue Pay Developer API, you need to sign up for a developer account on our platform. Once registered, you’ll receive an API key that you can use to authenticate your API requests.
The Kueue Pay Developer API allows you to initiate payments, check the status of payments, and process refunds. You can create a seamless payment experience for your customers while maintaining control over transaction management.
Yes, the Kueue Pay Developer API is designed to accommodate businesses of varying sizes and industries. Whether you’re a small online store or a large enterprise, our API can be tailored to fit your specific payment needs.
The Kueue Pay Developer API is designed with simplicity and ease of use in mind. Our comprehensive documentation, code samples, and developer support resources ensure a smooth integration process for any web platform.
We offer competitive pricing plans for using the Kueue Pay Payment Gateway and Developer API. Details about fees and pricing tiers can be found on our developer portal.
Absolutely, the Kueue Pay Developer API offers customization options that allow you to tailor the payment experience to match your brand and user interface. You can create a seamless and cohesive payment journey for your customers.
We provide dedicated developer support to assist you with any issues or questions you may have during the API integration process. Reach out to our support team at developersupport@NFCPay.com for prompt assistance.
Remember, our goal is to empower your business with a robust and efficient payment solution. If you have any additional questions or concerns, feel free to explore our developer portal or contact our support team.