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<?php |
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/** |
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* Image Creation class for CAPTCHA |
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* |
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* D.J. |
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*/ |
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class XoopsCaptchaImage |
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{ |
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public $config = array(); |
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/** |
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* XoopsCaptchaImage constructor. |
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*/ |
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public function __construct() |
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{ |
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//$this->name = md5( session_id() ); |
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} |
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/** |
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* @return XoopsCaptchaImage |
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*/ |
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public static function getInstance() |
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{ |
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static $instance; |
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if (null === $instance) { |
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$instance = new static(); |
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} |
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return $instance; |
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} |
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/** |
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* Loading configs from CAPTCHA class |
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* @param array $config |
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*/ |
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public function loadConfig($config = array()) |
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{ |
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// Loading default preferences |
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$this->config = $config; |
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} |
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/** |
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* @return string |
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*/ |
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public function render() |
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{ |
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$form = "<input type='text' name='" . |
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$this->config['name'] . |
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"' id='" . |
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$this->config['name'] . |
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"' size='" . |
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$this->config['num_chars'] . |
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"' maxlength='" . |
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$this->config['num_chars'] . |
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"' value='' /> " . |
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$this->loadImage(); |
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$rule = htmlspecialchars(XOOPS_CAPTCHA_REFRESH, ENT_QUOTES); |
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if ($this->config['maxattempt']) { |
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$rule .= ' | ' . sprintf(constant('XOOPS_CAPTCHA_MAXATTEMPTS'), $this->config['maxattempt']); |
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} |
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$form .= " <small>{$rule}</small>"; |
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return $form; |
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} |
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/** |
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* @return string |
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*/ |
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public function loadImage() |
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{ |
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$rule = $this->config['casesensitive'] ? constant('XOOPS_CAPTCHA_RULE_CASESENSITIVE') : constant('XOOPS_CAPTCHA_RULE_CASEINSENSITIVE'); |
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$ret = "<img id='captcha' src='" . |
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XOOPS_URL . |
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'/' . |
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$this->config['imageurl'] . |
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"' onclick=\"this.src='" . |
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XOOPS_URL . |
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'/' . |
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$this->config['imageurl'] . |
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"?refresh='+Math.random()" . |
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"\" align='absmiddle' style='cursor: pointer;' alt='" . |
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htmlspecialchars($rule, ENT_QUOTES) . |
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"' />"; |
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return $ret; |
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} |
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} |
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Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it.
The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production.
This check looks for comments that seem to be mostly valid code and reports them.