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AsyncHttpServer.java
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AsyncHttpServer.java
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package com.koushikdutta.async.http.server;
import android.annotation.TargetApi;
import android.os.Build;
import android.util.Log;
import com.koushikdutta.async.AsyncSSLSocket;
import com.koushikdutta.async.AsyncSSLSocketWrapper;
import com.koushikdutta.async.AsyncServer;
import com.koushikdutta.async.AsyncServerSocket;
import com.koushikdutta.async.AsyncSocket;
import com.koushikdutta.async.ByteBufferList;
import com.koushikdutta.async.DataEmitter;
import com.koushikdutta.async.Util;
import com.koushikdutta.async.callback.CompletedCallback;
import com.koushikdutta.async.callback.ListenCallback;
import com.koushikdutta.async.callback.ValueCallback;
import com.koushikdutta.async.http.Headers;
import com.koushikdutta.async.http.HttpUtil;
import com.koushikdutta.async.http.Multimap;
import com.koushikdutta.async.http.WebSocket;
import com.koushikdutta.async.http.body.AsyncHttpRequestBody;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Hashtable;
import javax.net.ssl.SSLContext;
@TargetApi(Build.VERSION_CODES.ECLAIR)
public class AsyncHttpServer extends AsyncHttpServerRouter {
ArrayList<AsyncServerSocket> mListeners = new ArrayList<AsyncServerSocket>();
public void stop() {
if (mListeners != null) {
for (AsyncServerSocket listener: mListeners) {
listener.stop();
}
}
}
protected boolean onRequest(AsyncHttpServerRequest request, AsyncHttpServerResponse response) {
return false;
}
protected void onResponseCompleted(AsyncHttpServerRequest request, AsyncHttpServerResponse response) {
}
protected void onRequest(HttpServerRequestCallback callback, AsyncHttpServerRequest request, AsyncHttpServerResponse response) {
if (callback != null) {
try {
callback.onRequest(request, response);
}
catch (Exception e) {
Log.e("AsyncHttpServer", "request callback raised uncaught exception. Catching versus crashing process", e);
response.code(500);
response.end();
}
}
}
protected boolean isKeepAlive(AsyncHttpServerRequest request, AsyncHttpServerResponse response) {
return HttpUtil.isKeepAlive(response.getHttpVersion(), request.getHeaders());
}
protected AsyncHttpRequestBody onUnknownBody(Headers headers) {
return new UnknownRequestBody(headers.get("Content-Type"));
}
protected boolean isSwitchingProtocols(AsyncHttpServerResponse res) {
return res.code() == 101;
}
ListenCallback mListenCallback = new ListenCallback() {
@Override
public void onAccepted(final AsyncSocket socket) {
final AsyncHttpServerRequestImpl req = new AsyncHttpServerRequestImpl() {
AsyncHttpServerRequestImpl self = this;
HttpServerRequestCallback requestCallback;
String fullPath;
String path;
boolean responseComplete;
boolean requestComplete;
AsyncHttpServerResponseImpl res;
boolean hasContinued;
boolean handled;
final Runnable onFinally = new Runnable() {
@Override
public void run() {
Log.i("HTTP", "Done");
}
};
final ValueCallback<Exception> onException = new ValueCallback<Exception>() {
@Override
public void onResult(Exception value) {
Log.e("HTTP", "exception", value);
}
};
void onRequest() {
AsyncHttpServer.this.onRequest(requestCallback, this, res);
}
@Override
protected AsyncHttpRequestBody onBody(Headers headers) {
String statusLine = getStatusLine();
String[] parts = statusLine.split(" ");
fullPath = parts[1];
path = URLDecoder.decode(fullPath.split("\\?")[0]);
method = parts[0];
RouteMatch route = route(method, path);
if (route == null)
return null;
matcher = route.matcher;
requestCallback = route.callback;
if (route.bodyCallback == null)
return null;
return route.bodyCallback.getBody(headers);
}
@Override
protected AsyncHttpRequestBody onUnknownBody(Headers headers) {
return AsyncHttpServer.this.onUnknownBody(headers);
}
@Override
protected void onHeadersReceived() {
Headers headers = getHeaders();
// should the negotiation of 100 continue be here, or in the request impl?
// probably here, so AsyncResponse can negotiate a 100 continue.
if (!hasContinued && "100-continue".equals(headers.get("Expect"))) {
pause();
// System.out.println("continuing...");
Util.writeAll(mSocket, "HTTP/1.1 100 Continue\r\n\r\n".getBytes(), new CompletedCallback() {
@Override
public void onCompleted(Exception ex) {
resume();
if (ex != null) {
report(ex);
return;
}
hasContinued = true;
onHeadersReceived();
}
});
return;
}
// System.out.println(headers.toHeaderString());
res = new AsyncHttpServerResponseImpl(socket, this) {
@Override
protected void report(Exception e) {
super.report(e);
if (e != null) {
socket.setDataCallback(new NullDataCallback());
socket.setEndCallback(new NullCompletedCallback());
socket.close();
}
}
@Override
protected void onEnd() {
responseComplete = true;
super.onEnd();
mSocket.setEndCallback(null);
onResponseCompleted(getRequest(), res);
// reuse the socket for a subsequent request.
handleOnCompleted();
}
};
handled = AsyncHttpServer.this.onRequest(this, res);
if (handled)
return;
if (requestCallback == null) {
res.code(404);
res.end();
return;
}
if (!getBody().readFullyOnRequest() || requestComplete)
onRequest();
}
@Override
public void onCompleted(Exception e) {
if (isSwitchingProtocols(res))
return;
requestComplete = true;
super.onCompleted(e);
// no http pipelining, gc trashing if the socket dies
// while the request is being sent and is paused or something
mSocket.setDataCallback(new NullDataCallback() {
@Override
public void onDataAvailable(DataEmitter emitter, ByteBufferList bb) {
super.onDataAvailable(emitter, bb);
mSocket.close();
}
});
if (e != null) {
mSocket.close();
return;
}
handleOnCompleted();
if (getBody().readFullyOnRequest() && !handled) {
onRequest();
}
}
private void handleOnCompleted() {
// response may complete before request. the request may have a body, and
// the response may be sent before it is fully sent.
// if the protocol was switched off http, abandon the socket,
// otherwise attempt to recycle it.
if (requestComplete && responseComplete && !isSwitchingProtocols(res)) {
if (isKeepAlive(self, res)) {
onAccepted(socket);
}
else {
socket.close();
}
}
}
@Override
public String getPath() {
return path;
}
@Override
public Multimap getQuery() {
String[] parts = fullPath.split("\\?", 2);
if (parts.length < 2)
return new Multimap();
return Multimap.parseQuery(parts[1]);
}
@Override
public String getUrl() {
return fullPath;
}
};
req.setSocket(socket);
socket.resume();
}
@Override
public void onCompleted(Exception error) {
report(error);
}
@Override
public void onListening(AsyncServerSocket socket) {
mListeners.add(socket);
}
};
public AsyncServerSocket listen(AsyncServer server, int port) {
return server.listen(null, port, mListenCallback);
}
private void report(Exception ex) {
if (mCompletedCallback != null)
mCompletedCallback.onCompleted(ex);
}
public AsyncServerSocket listen(int port) {
return listen(AsyncServer.getDefault(), port);
}
public void listenSecure(final int port, final SSLContext sslContext) {
AsyncServer.getDefault().listen(null, port, new ListenCallback() {
@Override
public void onAccepted(AsyncSocket socket) {
AsyncSSLSocketWrapper.handshake(socket, null, port, sslContext.createSSLEngine(), null, null, false,
new AsyncSSLSocketWrapper.HandshakeCallback() {
@Override
public void onHandshakeCompleted(Exception e, AsyncSSLSocket socket) {
if (socket != null)
mListenCallback.onAccepted(socket);
}
});
}
@Override
public void onListening(AsyncServerSocket socket) {
mListenCallback.onListening(socket);
}
@Override
public void onCompleted(Exception ex) {
mListenCallback.onCompleted(ex);
}
});
}
public ListenCallback getListenCallback() {
return mListenCallback;
}
CompletedCallback mCompletedCallback;
public void setErrorCallback(CompletedCallback callback) {
mCompletedCallback = callback;
}
public CompletedCallback getErrorCallback() {
return mCompletedCallback;
}
private static Hashtable<Integer, String> mCodes = new Hashtable<Integer, String>();
static {
mCodes.put(200, "OK");
mCodes.put(202, "Accepted");
mCodes.put(206, "Partial Content");
mCodes.put(101, "Switching Protocols");
mCodes.put(301, "Moved Permanently");
mCodes.put(302, "Found");
mCodes.put(304, "Not Modified");
mCodes.put(400, "Bad Request");
mCodes.put(401, "Unauthorized");
mCodes.put(404, "Not Found");
mCodes.put(500, "Internal Server Error");
}
public static String getResponseCodeDescription(int code) {
String d = mCodes.get(code);
if (d == null)
return "Unknown";
return d;
}
public static void addResponseCodeDescription( int code, String description ) {
mCodes.put(code, description);
}
public static interface WebSocketRequestCallback {
void onConnected(WebSocket webSocket, AsyncHttpServerRequest request);
}
}