You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
186 lines
4.2 KiB
186 lines
4.2 KiB
<?php
|
|
|
|
// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
|
|
//
|
|
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
|
|
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
|
|
// $Id$
|
|
|
|
class Captcha_Questions extends Laminas\Captcha\AbstractWord
|
|
{
|
|
|
|
protected $name = "questions";
|
|
|
|
/**
|
|
* CAPTCHA label
|
|
* @type string
|
|
*/
|
|
protected $label = '';
|
|
|
|
private $questions = []; // array for quesiotns and answers passed to ctor
|
|
private $current = null; // int current q & a
|
|
|
|
/**#@+
|
|
* Error codes
|
|
*/
|
|
const MISSING_VALUE = 'missingValue';
|
|
const ERR_CAPTCHA = 'errCaptcha';
|
|
const BAD_CAPTCHA = 'badCaptcha';
|
|
const MISSING_ID = 'missingID';
|
|
/**#@-*/
|
|
|
|
/**
|
|
* Error messages
|
|
* @var array
|
|
*/
|
|
protected $messageTemplates = [
|
|
self::MISSING_VALUE => 'Missing captcha fields',
|
|
self::ERR_CAPTCHA => 'Failed to validate CAPTCHA',
|
|
self::BAD_CAPTCHA => 'Captcha value is wrong: %value%',
|
|
self::MISSING_ID => 'missingID',
|
|
];
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* @param array|$questions
|
|
*/
|
|
public function __construct($questions)
|
|
{
|
|
$this->questions = $questions;
|
|
$this->abstractOptions['messageTemplates'] = $this->messageTemplates;
|
|
}
|
|
|
|
/**
|
|
* Generate new session ID and new word
|
|
*
|
|
* @return string session ID
|
|
*/
|
|
public function generate()
|
|
{
|
|
if (! $this->keepSession) {
|
|
$this->session = null;
|
|
}
|
|
$id = $this->generateRandomId();
|
|
$this->setId($id);
|
|
$word = $this->generateWord();
|
|
$this->setWord($word);
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* Render the captcha
|
|
*
|
|
* @param $view
|
|
* @param mixed $element
|
|
* @return string
|
|
*/
|
|
public function render($view = null, $element = null)
|
|
{
|
|
$question = $this->questions[$this->current];
|
|
|
|
return tra($question[0]);
|
|
}
|
|
|
|
/**
|
|
* Validate the answer
|
|
*
|
|
* @see Laminas\Validator\Interface::isValid()
|
|
* @param mixed $value
|
|
* @param array|null $context
|
|
* @return boolean
|
|
*/
|
|
public function isValid($value, $context = null)
|
|
{
|
|
if (! is_array($value) && ! is_array($context)) {
|
|
$this->_error(self::MISSING_VALUE);
|
|
return false;
|
|
}
|
|
if (! is_array($value) && is_array($context)) {
|
|
$value = $context;
|
|
}
|
|
|
|
$name = $this->getName();
|
|
|
|
if (isset($value[$name])) {
|
|
$value = $value[$name];
|
|
}
|
|
|
|
if (! isset($value['input'])) {
|
|
$this->error(self::MISSING_VALUE);
|
|
return false;
|
|
}
|
|
$input = strtolower($value['input']);
|
|
$this->setValue($input);
|
|
|
|
if (! isset($value['id'])) {
|
|
$this->error(self::MISSING_ID);
|
|
return false;
|
|
}
|
|
|
|
$this->id = $value['id'];
|
|
$word = $this->getWord();
|
|
|
|
if (empty($word)) {
|
|
$this->error(self::MISSING_VALUE);
|
|
return false;
|
|
}
|
|
|
|
if (
|
|
! (preg_match('#^/.*/[imsxADSUXJu]*$#', $word) && preg_match($word, $input)) && // regex answer?
|
|
$input !== $word
|
|
) {
|
|
$this->error(self::BAD_CAPTCHA);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get captcha word (actually answer in this case)
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getWord()
|
|
{
|
|
if (empty($this->word)) {
|
|
$session = $this->getSession();
|
|
$this->word = $session->word;
|
|
}
|
|
return $this->word;
|
|
}
|
|
|
|
/**
|
|
* Generate new random answer
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function generateWord()
|
|
{
|
|
$this->current = array_rand($this->questions);
|
|
$question = $this->questions[$this->current];
|
|
|
|
$word = $question[1];
|
|
|
|
return $word;
|
|
}
|
|
|
|
/**
|
|
* Set the label for the CAPTCHA
|
|
* @param string $label
|
|
*/
|
|
public function setLabel($label)
|
|
{
|
|
$this->label = $label;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the label for the CAPTCHA
|
|
* @return string
|
|
*/
|
|
public function getLabel()
|
|
{
|
|
return $this->label;
|
|
}
|
|
}
|