/**
* 入口
*
* @author mrmsl <*****@*****.**>
* @date 2012-09-27 17:26:23
* @lastmodify 2013-01-22 11:02:32 by mrmsl
*
* @return void 无返回值
*/
public function indexAction()
{
$module = Filter::get('module', 'get');
//模块
$error = '';
if (!APP_DEBUG) {
//非调试模式
if (!REFERER_PAGER) {
$error = L('REFERER_PAGER,IS_EMPTY');
} elseif (strpos(REFERER_PAGER, WEB_SITE_URL) === false) {
$error = L('REFERER_PAGER') . '(' . REFERER_PAGER . ')' . L('IS_EMPTY');
}
}
if (!$error) {
if (!$module) {
$error = 'module' . L('IS_EMPTY');
} elseif (!in_array($module, $this->_verifycode_module)) {
$error = 'module not in (' . join(',', $this->_verifycode_module) . ')';
} else {
$verifycode_setting = get_verifycode_setting($module);
//验证码设置
//未开启验证码
if (!$verifycode_setting['enable']) {
$default_setting = get_verifycode_setting('sys', 'enable');
//默认设置
$error = L('NOT_HAS,TURN_ON') . "(module:{$verifycode_setting['enable']}|sys:{$default_setting})";
}
}
}
if ($error) {
//有错误
$log = get_method_line(__METHOD__, __LINE__, LOG_VERIFYCODE_ERROR) . L('VERIFY_CODE') . "({$module})" . $error;
trigger_error($log);
$exit = true;
} elseif (!check_verifycode_limit($module, 'refresh')) {
//刷新次数限制
$exit = true;
}
if (!empty($exit)) {
header('Content-type: image/png');
readfile(IMGCACHE_PATH . 'common/images/verifycode_error.png');
exit;
}
$width = $verifycode_setting['width'];
//宽
$height = $verifycode_setting['height'];
//高
$length = $verifycode_setting['length'];
//字母长
$type = $verifycode_setting['type'];
//类型
$img = new Verifycode();
$img->buildVerifyImage($verifycode_setting['length'], $verifycode_setting['type'], $verifycode_setting['width'], $verifycode_setting['height']);
}
/**
* 验证验证码是否正确
*
* @author mrmsl <*****@*****.**>
* @date 2012-07-13 16:45:47
* @lastmodify 2013-01-22 17:08:59 by mrmsl
*
* @param string $code 验证码
* @param string $module 验证码模块
*
* @return mixed true正确，否则返回提示信息
*/
function check_verifycode($code, $module)
{
static $_checked = array();
if (isset($_checked[$module])) {
//已经验证过
return $_checked[$module];
} elseif (!check_verifycode_limit($module)) {
//错误次数限制
$result = false;
} else {
$session = session(SESSION_VERIFY_CODE);
$verifycode_setting = get_verifycode_setting($module);
$verifycode_order = $verifycode_setting['order'];
if (!$verifycode_setting['case']) {
//不区分大小写
$code = strtolower($code);
$session = strtolower($session);
}
if (!is_numeric($verifycode_order)) {
//非数字，$verifycode_order即为验证码
$result = $code == $verifycode_order;
} elseif (!$verifycode_order) {
//验证码顺序
$result = $code == $session;
} elseif (($len = strlen($verifycode_order)) != strlen($code)) {
//输入长度与顺序长度一致，避免abcd => abcde也通过
$result = false;
} else {
for ($i = 0; $i < $len; $i++) {
$n = $verifycode_order[$i] - 1;
$result = isset($code[$i]) && isset($session[$n]) && $code[$i] == $session[$n];
}
}
}
$_checked[$module] = $result;
return $result;
}
