/**
* Validator:
* Validates $value for $field->required and other rules
* Override
*
* @param FieldTable $field
* @param UserTable $user RETURNED populated: touch only variables related to saving this field (also when not validating for showing re-edit)
* @param string $columnName Column to validate
* @param string $value (RETURNED:) Value to validate, Returned Modified if needed !
* @param array $postdata Typically $_POST (but not necessarily), filtering required.
* @param string $reason 'edit' for save user edit, 'register' for save registration
* @return boolean True if validate, $this->_setErrorMSG if False
*/
public function validate( &$field, &$user, $columnName, &$value, &$postdata, $reason )
{
if ( ( ! Application::Cms()->getClientId() ) && ( ! Application::MyUser()->isGlobalModerator() ) && in_array( $reason, array( 'register', 'edit' ) ) ) {
if ( parent::validate( $field, $user, $columnName, $value, $postdata, $reason ) ) {
$captcha = cbantispamCaptcha::getInstance( $field->get( 'name' ), $field->params->get( 'cbantispam_captcha_mode', null ) );
if ( ! $captcha->validateCaptcha() ) {
$this->_setValidationError( $field, $user, $reason, ( $captcha->error ? $captcha->error : CBTxt::T( 'Invalid Captcha Code' ) ) );
return false;
}
}
}
return true;
}
/**
* Generates a captcha audio file
*
* @param string $id
*/
public function captchaAudio( $id )
{
global $_PLUGINS;
if ( $id ) {
$absPath = $_PLUGINS->getPluginPath( $this->getPluginId() );
$captcha = cbantispamCaptcha::getInstance( $id );
$code = $captcha->getCaptchaCode();
$sounds = array();
for( $i = 0; $i < cbIsoUtf_strlen( $code ); $i++ ) {
$file = $absPath . '/audio/' . $code{$i} . '.mp3';
if ( ! file_exists( $file ) ) {
exit( CBTxt::T( 'CAPTCHA_AUDIO_FILE_FAILED', 'failed to locate "[file]" audio file', array( '[file]' => $file ) ) );
}
$sounds[] = $file;
}
header( 'Expires: Mon, 26 Jul 1997 05:00:00 GMT' );
header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s' ) . ' GMT' );
header( 'Cache-Control: no-store, no-cache, must-revalidate' );
header( 'Cache-Control: post-check=0, pre-check=0', false );
header( 'Pragma: no-cache' );
header( 'Content-Type: audio/mpeg' );
header( 'Content-Disposition: inline; filename=cbcaptcha.mp3;' );
header( 'Content-Transfer-Encoding: binary' );
$out = '';
$count = count( $sounds );
$i = 0;
foreach ( $sounds as $sound ) {
$i++;
if ( $i != $count ) {
$offset = 128;
} else {
$offset = 0;
}
$fh = fopen( $sound, 'rb' );
$size = filesize( $sound );
$out .= fread( $fh, ( $size - $offset ) );
fclose( $fh );
}
header( 'Content-Length: ' . cbIsoUtf_strlen( $out ) );
echo $out;
exit();
}
}
