@Override
public int read(final byte[] b, final int off, final int len) throws IOException {
if (anyAreSet(state, FLAG_CLOSED)) {
throw UndertowServletMessages.MESSAGES.streamIsClosed();
}
if (anyAreSet(state, FLAG_FINISHED)) {
return -1;
}
ByteBuffer buffer = ByteBuffer.wrap(b, off, len);
if (listener == null) {
int res = Channels.readBlocking(channel, buffer);
if (res == -1) {
state |= FLAG_FINISHED;
}
return res;
} else {
if (anyAreClear(state, FLAG_READY)) {
throw UndertowServletMessages.MESSAGES.streamNotReady();
}
int res = channel.read(buffer);
if (res == -1) {
state |= FLAG_FINISHED;
} else if (res == 0) {
state &= ~FLAG_READY;
channel.resumeReads();
}
return res;
}
}
public void renegotiateBufferRequest(HttpServerExchange exchange, SslClientAuthMode newAuthMode)
throws IOException {
int maxSize =
exchange
.getConnection()
.getUndertowOptions()
.get(UndertowOptions.MAX_BUFFERED_REQUEST_SIZE, 16384);
if (maxSize <= 0) {
throw new SSLPeerUnverifiedException("");
}
// first we need to read the request
boolean requestResetRequired = false;
StreamSourceChannel requestChannel = Connectors.getExistingRequestChannel(exchange);
if (requestChannel == null) {
requestChannel = exchange.getRequestChannel();
requestResetRequired = true;
}
Pooled<ByteBuffer> pooled = exchange.getConnection().getBufferPool().allocate();
boolean free = true; // if the pooled buffer should be freed
int usedBuffers = 0;
Pooled<ByteBuffer>[] poolArray = null;
final int bufferSize = pooled.getResource().remaining();
int allowedBuffers = ((maxSize + bufferSize - 1) / bufferSize);
poolArray = new Pooled[allowedBuffers];
poolArray[usedBuffers++] = pooled;
try {
int res;
do {
final ByteBuffer buf = pooled.getResource();
res = Channels.readBlocking(requestChannel, buf);
if (!buf.hasRemaining()) {
if (usedBuffers == allowedBuffers) {
throw new SSLPeerUnverifiedException("");
} else {
buf.flip();
pooled = exchange.getConnection().getBufferPool().allocate();
poolArray[usedBuffers++] = pooled;
}
}
} while (res != -1);
free = false;
pooled.getResource().flip();
Connectors.ungetRequestBytes(exchange, poolArray);
renegotiateNoRequest(exchange, newAuthMode);
} finally {
if (free) {
for (Pooled<ByteBuffer> buf : poolArray) {
if (buf != null) {
buf.free();
}
}
}
if (requestResetRequired) {
exchange.requestChannel = null;
}
}
}