com.sun.grizzly.http.portunif.HttpProtocolHandler Maven / Gradle / Ivy
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package com.sun.grizzly.http.portunif;
import com.sun.grizzly.Context;
import com.sun.grizzly.portunif.PUProtocolRequest;
import com.sun.grizzly.portunif.ProtocolHandler;
import com.sun.grizzly.util.Utils;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;
/**
* Redirect the request to the proper protocol, which can be http or https.
*
* @author Jeanfrancois Arcand
* @author Alexey Stashok
*/
public class HttpProtocolHandler implements ProtocolHandler {
public enum Mode {
HTTP, HTTPS, HTTP_HTTPS;
}
private static final int DEFAULT_HTTP_HEADER_BUFFER_SIZE = 48 * 1024;
/**
* The protocols supported by this handler.
*/
protected String[][] protocols = {{"http"}, {"https"}, {"https", "http"}};
private Mode mode;
public HttpProtocolHandler() {
mode = Mode.HTTP;
}
public HttpProtocolHandler(Mode mode) {
this.mode = mode;
}
/**
* Redirect the request to the protocol defined in the
* protocolInfo. Protocols supported are http and https.
*
* @param protocolInfo The protocol that needs to be redirected.
*/
public boolean handle(Context context, PUProtocolRequest protocolRequest) throws IOException {
if (protocolRequest.getProtocolName().equalsIgnoreCase("https")) {
HttpRedirector.redirectSSL(context, protocolRequest);
} else {
HttpRedirector.redirect(context, protocolRequest);
}
/* ======================================================
* Java HTTP(S) client sends request in 2 chunks: header, payload
* We need to make sure client started to send payload before redirecting/closing
* the connection. Otherwise client can not receive "HTTP 302 redirect" response.
*/
ByteBuffer tmpBuffer = protocolRequest.getByteBuffer();
tmpBuffer.clear();
try {
int totalReadBytes = 0;
while(tmpBuffer.hasRemaining() && totalReadBytes < DEFAULT_HTTP_HEADER_BUFFER_SIZE) {
int count = Utils.readWithTemporarySelector(
protocolRequest.getChannel(), tmpBuffer, 2);
if (count == -1) {
break;
}
totalReadBytes += count;
}
} catch(IOException e) {
// ignore.
} finally {
tmpBuffer.clear();
}
//=========================================================
return false;
}
/**
* Returns an array of supported protocols.
* @return an array of supported protocols.
*/
public String[] getProtocols() {
return protocols[mode.ordinal()];
}
/**
* Invoked when the SelectorThread is about to expire a SelectionKey.
* @return true if the SelectorThread should expire the SelectionKey, false
* if not.
*/
public boolean expireKey(SelectionKey key){
return true;
}
public ByteBuffer getByteBuffer() {
return null;
}
}