// Copyright 2012 Citrix Systems, Inc. Licensed under the
// Apache License, Version 2.0 (the "License"); you may not use this
// file except in compliance with the License. Citrix Systems, Inc.
// reserves all rights not expressly granted by the License.
// You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Automatically generated by addcopyright.py at 04/03/2012
package com.cloud.consoleproxy;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Map;
import com.cloud.consoleproxy.util.Logger;
import com.sun.net.httpserver.Headers;
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
public class ConsoleProxyAjaxImageHandler implements HttpHandler {
private static final Logger s_logger = Logger.getLogger(ConsoleProxyAjaxImageHandler.class);
public void handle(HttpExchange t) throws IOException {
try {
if(s_logger.isDebugEnabled())
s_logger.debug("AjaxImageHandler " + t.getRequestURI());
long startTick = System.currentTimeMillis();
doHandle(t);
if(s_logger.isDebugEnabled())
s_logger.debug(t.getRequestURI() + "Process time " + (System.currentTimeMillis() - startTick) + " ms");
} catch (IOException e) {
throw e;
} catch (IllegalArgumentException e) {
s_logger.warn("Exception, ", e);
t.sendResponseHeaders(400, -1); // bad request
} catch(OutOfMemoryError e) {
s_logger.error("Unrecoverable OutOfMemory Error, exit and let it be re-launched");
System.exit(1);
} catch(Throwable e) {
s_logger.error("Unexpected exception, ", e);
t.sendResponseHeaders(500, -1); // server error
} finally {
t.close();
}
}
private void doHandle(HttpExchange t) throws Exception, IllegalArgumentException {
String queries = t.getRequestURI().getQuery();
Map<String, String> queryMap = ConsoleProxyHttpHandlerHelper.getQueryMap(queries);
String host = queryMap.get("host");
String portStr = queryMap.get("port");
String sid = queryMap.get("sid");
String tag = queryMap.get("tag");
String ticket = queryMap.get("ticket");
String keyStr = queryMap.get("key");
int key = 0;
if(tag == null)
tag = "";
int port;
if(host == null || portStr == null || sid == null)
throw new IllegalArgumentException();
try {
port = Integer.parseInt(portStr);
} catch (NumberFormatException e) {
s_logger.warn("Invalid numeric parameter in query string: " + portStr);
throw new IllegalArgumentException(e);
}
try {
key = Integer.parseInt(keyStr);
} catch (NumberFormatException e) {
s_logger.warn("Invalid numeric parameter in query string: " + keyStr);
throw new IllegalArgumentException(e);
}
ConsoleProxyClientParam param = new ConsoleProxyClientParam();
param.setClientHostAddress(host);
param.setClientHostPort(port);
param.setClientHostPassword(sid);
param.setClientTag(tag);
param.setTicket(ticket);
ConsoleProxyClient viewer = ConsoleProxy.getVncViewer(param);
byte[] img = viewer.getAjaxImageCache().getImage(key);
if(img != null) {
Headers hds = t.getResponseHeaders();
hds.set("Content-Type", "image/jpeg");
t.sendResponseHeaders(200, img.length);
OutputStream os = t.getResponseBody();
try {
os.write(img, 0, img.length);
} finally {
os.close();
}
} else {
if(s_logger.isInfoEnabled())
s_logger.info("Image has already been swept out, key: " + key);
t.sendResponseHeaders(404, -1);
}
}
}