handleUnwrapThrowable() — netty Function Reference

Source Code

handler/src/main/java/io/netty/handler/ssl/SslHandler.java lines 1412–1436

    private void handleUnwrapThrowable(ChannelHandlerContext ctx, Throwable cause) {
        try {
            // We should attempt to notify the handshake failure before writing any pending data. If we are in unwrap
            // and failed during the handshake process, and we attempt to wrap, then promises will fail, and if
            // listeners immediately close the Channel then we may end up firing the handshake event after the Channel
            // has been closed.
            if (handshakePromise.tryFailure(cause)) {
                ctx.fireUserEventTriggered(new SslHandshakeCompletionEvent(cause));
            }

            // Let's check if the handler was removed in the meantime and so pendingUnencryptedWrites is null.
            if (pendingUnencryptedWrites != null) {
                // We need to flush one time as there may be an alert that we should send to the remote peer because
                // of the SSLException reported here.
                wrapAndFlush(ctx);
            }
        } catch (SSLException ex) {
            logger.debug("SSLException during trying to call SSLEngine.wrap(...)" +
                    " because of an previous SSLException, ignoring...", ex);
        } finally {
            // ensure we always flush and close the channel.
            setHandshakeFailure(ctx, cause, true, false, true);
        }
        PlatformDependent.throwException(cause);
    }