/**
* Read an AJP message.
*
* @return The number of bytes read
* @throws IOException any other failure, including incomplete reads
*/
protected int readMessage(AjpMessage message, boolean blockFirstRead) throws IOException {
byte[] buf = message.getBuffer();
int headerLength = message.getHeaderLength();
int bytesRead = read(buf, 0, headerLength, blockFirstRead);
if (bytesRead == 0) {
return 0;
}
int messageLength = message.processHeader(true);
if (messageLength < 0) {
// Invalid AJP header signature
throw new IOException(
sm.getString("ajpmessage.invalidLength", Integer.valueOf(messageLength)));
} else if (messageLength == 0) {
// Zero length message.
return bytesRead;
} else {
if (messageLength > buf.length) {
// Message too long for the buffer
// Need to trigger a 400 response
throw new IllegalArgumentException(
sm.getString(
"ajpprocessor.header.tooLong",
Integer.valueOf(messageLength),
Integer.valueOf(buf.length)));
}
bytesRead += read(buf, headerLength, messageLength, true);
return bytesRead;
}
}
/**
* Read an AJP message.
*
* @param first is true if the message is the first in the request, which will cause a short
* duration blocking read
* @return true if the message has been read, false if the short read didn't return anything
* @throws IOException any other failure, including incomplete reads
*/
protected boolean readMessage(AjpMessage message, boolean first, boolean useAvailableData)
throws IOException {
int headerLength = message.getHeaderLength();
if (first) {
if (!readt(headerLength, useAvailableData)) {
return false;
}
} else {
read(headerLength);
}
inputBuffer.get(message.getBuffer(), 0, headerLength);
int messageLength = message.processHeader(true);
if (messageLength < 0) {
// Invalid AJP header signature
// TODO: Throw some exception and close the connection to frontend.
return false;
} else if (messageLength == 0) {
// Zero length message.
return true;
} else {
if (messageLength > message.getBuffer().length) {
// Message too long for the buffer
// Need to trigger a 400 response
throw new IllegalArgumentException(
getSm()
.getString(
"ajpprocessor.header.tooLong",
Integer.valueOf(messageLength),
Integer.valueOf(message.getBuffer().length)));
}
read(messageLength);
inputBuffer.get(message.getBuffer(), headerLength, messageLength);
return true;
}
}