/*
* Copyright (C) 2004-2008 Jive Software. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with 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.
*/
package org.jivesoftware.openfire.container;
import org.jivesoftware.util.ParamUtils;
import org.jivesoftware.openfire.XMPPServer;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
/**
* Servlet is used for retrieval of plugin icons.
*
* @author Derek DeMoro
*/
public class PluginIconServlet extends HttpServlet {
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
}
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException {
String pluginName = ParamUtils.getParameter(request, "plugin");
PluginManager pluginManager = XMPPServer.getInstance().getPluginManager();
Plugin plugin = pluginManager.getPlugin(pluginName);
if (plugin != null) {
// Try looking for PNG file first then default to GIF.
File icon = new File(pluginManager.getPluginDirectory(plugin), "logo_small.png");
boolean isPng = true;
if (!icon.exists()) {
icon = new File(pluginManager.getPluginDirectory(plugin), "logo_small.gif");
isPng = false;
}
if (icon.exists()) {
// Clear any empty lines added by the JSP declaration. This is required to show
// the image in resin!
response.reset();
if (isPng) {
response.setContentType("image/png");
}
else {
response.setContentType("image/gif");
}
try (InputStream in = new FileInputStream(icon)) {
try (OutputStream ost = response.getOutputStream()) {
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) >= 0) {
ost.write(buf, 0, len);
}
ost.flush();
}
} catch (IOException ioe) {
throw new ServletException(ioe);
}
}
}
}
}