function useNonce($server_url, $timestamp, $salt)
    {
        global $Auth_OpenID_SKEW;

        if (!$this->active) {
            trigger_error("FileStore no longer active", E_USER_ERROR);
            return null;
        }

        if ( abs($timestamp - time()) > $Auth_OpenID_SKEW ) {
            return false;
        }

        if ($server_url) {
            list($proto, $rest) = explode('://', $server_url, 2);
        } else {
            $proto = '';
            $rest = '';
        }

        $parts = explode('/', $rest, 2);
        $domain = $this->_filenameEscape($parts[0]);
        $url_hash = $this->_safe64($server_url);
        $salt_hash = $this->_safe64($salt);

        $filename = sprintf('%08x-%s-%s-%s-%s', $timestamp, $proto,
                            $domain, $url_hash, $salt_hash);
        $filename = $this->nonce_dir . DIRECTORY_SEPARATOR . $filename;

        $result = @fopen($filename, 'x');

        if ($result === false) {
            return false;
        } else {
            fclose($result);
            return true;
        }
    }
function useNonce($server_url, $timestamp, $salt)
    {
        global $Auth_OpenID_SKEW;

        if (!$this->active) {
            trigger_error("FileStore no longer active", E_USER_ERROR);
            return null;
        }

        if ( abs($timestamp - time()) > $Auth_OpenID_SKEW ) {
            return false;
        }

        if ($server_url) {
            list($proto, $rest) = explode('://', $server_url, 2);
        } else {
            $proto = '';
            $rest = '';
        }

        $parts = explode('/', $rest, 2);
        $domain = $this->_filenameEscape($parts[0]);
        $url_hash = $this->_safe64($server_url);
        $salt_hash = $this->_safe64($salt);

        $filename = sprintf('%08x-%s-%s-%s-%s', $timestamp, $proto,
                            $domain, $url_hash, $salt_hash);
        $filename = $this->nonce_dir . DIRECTORY_SEPARATOR . $filename;

        $result = @fopen($filename, 'x');

        if ($result === false) {
            return false;
        } else {
            fclose($result);
            return true;
        }
    }
function useNonce ( $ server_url , $ timestamp , $ salt ) { global $ Auth_OpenID_SKEW ; if ( ! $ this -> active ) { trigger_error ( "FileStore no longer active" , E_USER_ERROR ) ; return null ; } if ( abs ( $ timestamp - time ( ) ) > $ Auth_OpenID_SKEW ) { return false ; } if ( $ server_url ) { list ( $ proto , $ rest ) = explode ( '://' , $ server_url , 2 ) ; } else { $ proto = '' ; $ rest = '' ; } $ parts = explode ( '/' , $ rest , 2 ) ; $ domain = $ this -> _filenameEscape ( $ parts [ 0 ] ) ; $ url_hash = $ this -> _safe64 ( $ server_url ) ; $ salt_hash = $ this -> _safe64 ( $ salt ) ; $ filename = sprintf ( '%08x-%s-%s-%s-%s' , $ timestamp , $ proto , $ domain , $ url_hash , $ salt_hash ) ; $ filename = $ this -> nonce_dir . DIRECTORY_SEPARATOR . $ filename ; $ result = @ fopen ( $ filename , 'x' ) ; if ( $ result === false ) { return false ; } else { fclose ( $ result ) ; return true ; } }
Return whether this nonce is present. As a side effect, mark it
as no longer present.

@param string $server_url
@param int $timestamp
@param string $salt
@return bool $present
Return whether this nonce is present . As a side effect mark it as no longer present .