xoopscaptchamethod.php

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<?php
/*
 You may not change or alter any portion of this comment or credits
 of supporting developers from this source code or any supporting source code
 which is considered copyrighted (c) material of the original comment or credit authors.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/

abstract class XoopsCaptchaMethod
{
    public $handler;

    public $config;

    public $code;

    public function __construct($handler = null)
    {
        $this->handler = $handler;
    }

    public function isActive()
    {
        return true;
    }

    public function loadConfig($name = '')
    {
        if (!is_object($this->handler))
            $this->config = array();
        else
            $this->config = empty($name)
                ? $this->handler->config
                : array_merge($this->handler->config, $this->handler->loadConfig($name));
    }

    public function getCode()
    {
        return strval($this->code);
    }

    public function render()
    {
        return '';
    }

    public function renderValidationJS()
    {
        return '';
    }

    public function verify($sessionName = null)
    {
        $is_valid = false;
        if (!empty($_SESSION["{$sessionName}_code"])) {
            $func = !empty($this->config['casesensitive']) ? 'strcmp' : 'strcasecmp';
            $is_valid = !$func(trim(@$_POST[$sessionName]), $_SESSION["{$sessionName}_code"]);
        }
        return $is_valid;
    }

    public function destroyGarbage()
    {
        return true;
    }

}