SSLEngineResult unwrap(ByteBuffer encryptedData) throws SSLException {
ByteBuffer allEncryptedData = _buffers.prependCached(encryptedData);
_buffers.prepareForUnwrap(allEncryptedData);
SSLEngineResult result = doUnwrap();
allEncryptedData.position(result.bytesConsumed());
ByteBuffer unprocessedEncryptedData = BufferUtils.slice(allEncryptedData);
emitPlainData(result);
switch (result.getStatus()) {
case BUFFER_UNDERFLOW:
_buffers.cache(unprocessedEncryptedData);
break;
case BUFFER_OVERFLOW:
_buffers.grow(BufferType.IN_PLAIN);
if (unprocessedEncryptedData == null) {
throw new RuntimeException(
"Worker.unwrap had " + "buffer_overflow but all data was consumed!!");
} else {
unwrap(unprocessedEncryptedData);
}
break;
case OK:
if (unprocessedEncryptedData == null) {
_buffers.clearCache();
} else {
_buffers.cache(unprocessedEncryptedData);
}
break;
case CLOSED:
break;
}
return result;
}
SSLEngineResult wrap(ByteBuffer plainData) throws SSLException {
_buffers.prepareForWrap(plainData);
SSLEngineResult result = doWrap();
emitWrappedData(result);
switch (result.getStatus()) {
case BUFFER_UNDERFLOW:
throw new RuntimeException("BUFFER_UNDERFLOW while wrapping!");
case BUFFER_OVERFLOW:
_buffers.grow(BufferType.OUT_CIPHER);
if (plainData.hasRemaining()) {
plainData.position(result.bytesConsumed());
ByteBuffer remainingData = BufferUtils.slice(plainData);
wrap(remainingData);
}
break;
case OK:
break;
case CLOSED:
break;
}
return result;
}
