/*
* Copyright 1999,2004 The Apache Software Foundation.
*
* 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.apache.catalina.manager;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.URL;
import java.net.MalformedURLException;
import java.text.MessageFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.catalina.Context;
import org.apache.catalina.Host;
import org.apache.catalina.util.ServerInfo;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.DiskFileUpload;
import org.apache.commons.fileupload.FileUploadException;
/**
* Servlet that enables remote management of the web applications deployed
* within the same virtual host as this web application is. Normally, this
* functionality will be protected by a security constraint in the web
* application deployment descriptor. However, this requirement can be
* relaxed during testing.
* <p>
* The difference between the <code>ManagerServlet</code> and this
* Servlet is that this Servlet prints out a HTML interface which
* makes it easier to administrate.
* <p>
* However if you use a software that parses the output of
* <code>ManagerServlet</code you won't be able to upgrade
* to this Servlet since the output are not in the
* same format ar from <code>ManagerServlet</code>
*
* @author Bip Thelin
* @author Malcolm Edgar
* @author Glenn L. Nielsen
* @version $Revision: 1.10 $, $Date: 2004/02/27 14:59:07 $
* @see ManagerServlet
*/
public final class HTMLManagerServlet extends ManagerServlet {
// --------------------------------------------------------- Public Methods
/**
* Process a GET request for the specified resource.
*
* @param request The servlet request we are processing
* @param response The servlet response we are creating
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet-specified error occurs
*/
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
// Identify the request parameters that we need
String command = request.getPathInfo();
String path = request.getParameter("path");
String deployPath = request.getParameter("deployPath");
String deployConfig = request.getParameter("deployConfig");
String deployWar = request.getParameter("deployWar");
// Prepare our output writer to generate the response message
response.setContentType("text/html; charset=" + Constants.CHARSET);
String message = "";
// Process the requested command
if (command == null || command.equals("/")) {
} else if (command.equals("/deploy")) {
message = deployInternal(deployConfig, deployPath, deployWar);
} else if (command.equals("/list")) {
} else if (command.equals("/reload")) {
message = reload(path);
} else if (command.equals("/undeploy")) {
message = undeploy(path);
} else if (command.equals("/sessions")) {
message = sessions(path);
} else if (command.equals("/start")) {
message = start(path);
} else if (command.equals("/stop")) {
message = stop(path);
} else {
message =
sm.getString("managerServlet.unknownCommand", command);
}
list(request, response, message);
}
/**
* Process a POST request for the specified resource.
*
* @param request The servlet request we are processing
* @param response The servlet response we are creating
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet-specified error occurs
*/
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
// Identify the request parameters that we need
String command = request.getPathInfo();
if (command == null || !command.equals("/upload")) {
doGet(request,response);
return;
}
// Prepare our output writer to generate the response message
response.setContentType("text/html; charset=" + Constants.CHARSET);
String message = "";
// Create a new file upload handler
DiskFileUpload upload = new DiskFileUpload();
// Get the tempdir
File tempdir = (File) getServletContext().getAttribute
("javax.servlet.context.tempdir");
// Set upload parameters
upload.setSizeMax(-1);
upload.setRepositoryPath(tempdir.getCanonicalPath());
// Parse the request
String basename = null;
File appBaseDir = null;
String war = null;
FileItem warUpload = null;
try {
List items = upload.parseRequest(request);
// Process the uploaded fields
Iterator iter = items.iterator();
while (iter.hasNext()) {
FileItem item = (FileItem) iter.next();
if (!item.isFormField()) {
if (item.getFieldName().equals("deployWar") &&
warUpload == null) {
warUpload = item;
} else {
item.delete();
}
}
}
while (true) {
if (warUpload == null) {
message = sm.getString
("htmlManagerServlet.deployUploadNoFile");
break;
}
war = warUpload.getName();
if (!war.toLowerCase().endsWith(".war")) {
message = sm.getString
("htmlManagerServlet.deployUploadNotWar",war);
break;
}
// Get the filename if uploaded name includes a path
if (war.lastIndexOf('\\') >= 0) {
war = war.substring(war.lastIndexOf('\\') + 1);
}
if (war.lastIndexOf('/') >= 0) {
war = war.substring(war.lastIndexOf('/') + 1);
}
// Identify the appBase of the owning Host of this Context
// (if any)
String appBase = null;
appBase = ((Host) context.getParent()).getAppBase();
appBaseDir = new File(appBase);
if (!appBaseDir.isAbsolute()) {
appBaseDir = new File(System.getProperty("catalina.base"),
appBase);
}
basename = war.substring(0, war.indexOf(".war"));
File file = new File(appBaseDir, war);
if (file.exists()) {
message = sm.getString
("htmlManagerServlet.deployUploadWarExists",war);
break;
}
warUpload.write(file);
try {
URL url = file.toURL();
war = url.toString();
war = "jar:" + war + "!/";
} catch(MalformedURLException e) {
file.delete();
throw e;
}
break;
}
} catch(Exception e) {
message = sm.getString
("htmlManagerServlet.deployUploadFail", e.getMessage());
log(message, e);
} finally {
if (warUpload != null) {
warUpload.delete();
}
warUpload = null;
}
// Extract the nested context deployment file (if any)
File localWar = new File(appBaseDir, basename + ".war");
File localXml = new File(configBase, basename + ".xml");
try {
extractXml(localWar, localXml);
} catch (IOException e) {
log("managerServlet.extract[" + localWar + "]", e);
return;
}
String config = null;
try {
if (localXml.exists()) {
URL url = localXml.toURL();
config = url.toString();
}
} catch (MalformedURLException e) {
throw e;
}
// If there were no errors, deploy the WAR
if (message.length() == 0) {
message = deployInternal(config, null, war);
}
list(request, response, message);
}
/**
* Deploy an application for the specified path from the specified
* web application archive.
*
* @param config URL of the context configuration file to be deployed
* @param path Context path of the application to be deployed
* @param war URL of the web application archive to be deployed
* @return message String
*/
protected String deployInternal(String config, String path, String war) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.deploy(printWriter, config, path, war, false);
return stringWriter.toString();
}
/**
* Render a HTML list of the currently active Contexts in our virtual host,
* and memory and server status information.
*
* @param writer Writer to render to
* @param message a message to display
*/
public void list(HttpServletRequest request,
HttpServletResponse response,
String message) throws IOException {
if (debug >= 1)
log("list: Listing contexts for virtual host '" +
deployer.getName() + "'");
PrintWriter writer = response.getWriter();
// HTML Header Section
writer.print(Constants.HTML_HEADER_SECTION);
// Body Header Section
Object[] args = new Object[2];
args[0] = request.getContextPath();
args[1] = sm.getString("htmlManagerServlet.title");
writer.print(MessageFormat.format
(Constants.BODY_HEADER_SECTION, args));
// Message Section
args = new Object[3];
args[0] = sm.getString("htmlManagerServlet.messageLabel");
args[1] = (message == null || message.length() == 0) ? "OK" : message;
writer.print(MessageFormat.format(Constants.MESSAGE_SECTION, args));
// Manager Section
args = new Object[9];
args[0] = sm.getString("htmlManagerServlet.manager");
args[1] = response.encodeURL(request.getContextPath() + "/html/list");
args[2] = sm.getString("htmlManagerServlet.list");
args[3] = response.encodeURL
(request.getContextPath() + "/" +
sm.getString("htmlManagerServlet.helpHtmlManagerFile"));
args[4] = sm.getString("htmlManagerServlet.helpHtmlManager");
args[5] = response.encodeURL
(request.getContextPath() + "/" +
sm.getString("htmlManagerServlet.helpManagerFile"));
args[6] = sm.getString("htmlManagerServlet.helpManager");
args[7] = response.encodeURL
(request.getContextPath() + "/status");
args[8] = sm.getString("statusServlet.title");
writer.print(MessageFormat.format(Constants.MANAGER_SECTION, args));
// Apps Header Section
args = new Object[6];
args[0] = sm.getString("htmlManagerServlet.appsTitle");
args[1] = sm.getString("htmlManagerServlet.appsPath");
args[2] = sm.getString("htmlManagerServlet.appsName");
args[3] = sm.getString("htmlManagerServlet.appsAvailable");
args[4] = sm.getString("htmlManagerServlet.appsSessions");
args[5] = sm.getString("htmlManagerServlet.appsTasks");
writer.print(MessageFormat.format(APPS_HEADER_SECTION, args));
// Apps Row Section
// Create sorted map of deployed applications context paths.
String contextPaths[] = deployer.findDeployedApps();
TreeMap sortedContextPathsMap = new TreeMap();
for (int i = 0; i < contextPaths.length; i++) {
String displayPath = contextPaths[i];
sortedContextPathsMap.put(displayPath, contextPaths[i]);
}
String appsStart = sm.getString("htmlManagerServlet.appsStart");
String appsStop = sm.getString("htmlManagerServlet.appsStop");
String appsReload = sm.getString("htmlManagerServlet.appsReload");
String appsUndeploy = sm.getString("htmlManagerServlet.appsUndeploy");
Iterator iterator = sortedContextPathsMap.entrySet().iterator();
while (iterator.hasNext()) {
Map.Entry entry = (Map.Entry) iterator.next();
String displayPath = (String) entry.getKey();
String contextPath = (String) entry.getKey();
Context context = deployer.findDeployedApp(contextPath);
if (displayPath.equals("")) {
displayPath = "/";
}
if (context != null ) {
args = new Object[5];
args[0] = displayPath;
args[1] = context.getDisplayName();
if (args[1] == null) {
args[1] = " ";
}
args[2] = new Boolean(context.getAvailable());
args[3] = response.encodeURL
(request.getContextPath() +
"/html/sessions?path=" + displayPath);
if (context.getManager() != null) {
args[4] = new Integer
(context.getManager().findSessions().length);
} else {
args[4] = new Integer(0);
}
writer.print
(MessageFormat.format(APPS_ROW_DETAILS_SECTION, args));
args = new Object[8];
args[0] = response.encodeURL
(request.getContextPath() +
"/html/start?path=" + displayPath);
args[1] = appsStart;
args[2] = response.encodeURL
(request.getContextPath() +
"/html/stop?path=" + displayPath);
args[3] = appsStop;
args[4] = response.encodeURL
(request.getContextPath() +
"/html/reload?path=" + displayPath);
args[5] = appsReload;
args[6] = response.encodeURL
(request.getContextPath() +
"/html/undeploy?path=" + displayPath);
args[7] = appsUndeploy;
if (context.getPath().equals(this.context.getPath())) {
writer.print(MessageFormat.format(
MANAGER_APP_ROW_BUTTON_SECTION, args));
} else if (context.getAvailable()) {
writer.print(MessageFormat.format(
STARTED_APPS_ROW_BUTTON_SECTION, args));
} else {
writer.print(MessageFormat.format(
STOPPED_APPS_ROW_BUTTON_SECTION, args));
}
}
}
// Deploy Section
args = new Object[7];
args[0] = sm.getString("htmlManagerServlet.deployTitle");
args[1] = sm.getString("htmlManagerServlet.deployServer");
args[2] = response.encodeURL(request.getContextPath() + "/html/deploy");
args[3] = sm.getString("htmlManagerServlet.deployPath");
args[4] = sm.getString("htmlManagerServlet.deployConfig");
args[5] = sm.getString("htmlManagerServlet.deployWar");
args[6] = sm.getString("htmlManagerServlet.deployButton");
writer.print(MessageFormat.format(DEPLOY_SECTION, args));
args = new Object[4];
args[0] = sm.getString("htmlManagerServlet.deployUpload");
args[1] = response.encodeURL(request.getContextPath() + "/html/upload");
args[2] = sm.getString("htmlManagerServlet.deployUploadFile");
args[3] = sm.getString("htmlManagerServlet.deployButton");
writer.print(MessageFormat.format(UPLOAD_SECTION, args));
// Server Header Section
args = new Object[7];
args[0] = sm.getString("htmlManagerServlet.serverTitle");
args[1] = sm.getString("htmlManagerServlet.serverVersion");
args[2] = sm.getString("htmlManagerServlet.serverJVMVersion");
args[3] = sm.getString("htmlManagerServlet.serverJVMVendor");
args[4] = sm.getString("htmlManagerServlet.serverOSName");
args[5] = sm.getString("htmlManagerServlet.serverOSVersion");
args[6] = sm.getString("htmlManagerServlet.serverOSArch");
writer.print(MessageFormat.format
(Constants.SERVER_HEADER_SECTION, args));
// Server Row Section
args = new Object[6];
args[0] = ServerInfo.getServerInfo();
args[1] = System.getProperty("java.runtime.version");
args[2] = System.getProperty("java.vm.vendor");
args[3] = System.getProperty("os.name");
args[4] = System.getProperty("os.version");
args[5] = System.getProperty("os.arch");
writer.print(MessageFormat.format(Constants.SERVER_ROW_SECTION, args));
// HTML Tail Section
writer.print(Constants.HTML_TAIL_SECTION);
// Finish up the response
writer.flush();
writer.close();
}
/**
* Reload the web application at the specified context path.
*
* @see ManagerServlet#reload(PrintWriter, String)
*
* @param path Context path of the application to be restarted
* @return message String
*/
protected String reload(String path) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.reload(printWriter, path);
return stringWriter.toString();
}
/**
* Undeploy the web application at the specified context path.
*
* @see ManagerServlet#undeploy(PrintWriter, String)
*
* @param path Context path of the application to be undeployd
* @return message String
*/
protected String undeploy(String path) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.undeploy(printWriter, path);
return stringWriter.toString();
}
/**
* Display session information and invoke list.
*
* @see ManagerServlet#sessions(PrintWriter, String)
*
* @param path Context path of the application to list session information
* @return message String
*/
public String sessions(String path) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.sessions(printWriter, path);
return stringWriter.toString();
}
/**
* Start the web application at the specified context path.
*
* @see ManagerServlet#start(PrintWriter, String)
*
* @param path Context path of the application to be started
* @return message String
*/
public String start(String path) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.start(printWriter, path);
return stringWriter.toString();
}
/**
* Stop the web application at the specified context path.
*
* @see ManagerServlet#stop(PrintWriter, String)
*
* @param path Context path of the application to be stopped
* @return message String
*/
protected String stop(String path) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.stop(printWriter, path);
return stringWriter.toString();
}
// ------------------------------------------------------ Private Constants
// These HTML sections are broken in relatively small sections, because of
// limited number of subsitutions MessageFormat can process
// (maximium of 10).
private static final String APPS_HEADER_SECTION =
"<table border=\"1\" cellspacing=\"0\" cellpadding=\"3\">\n" +
"<tr>\n" +
" <td colspan=\"5\" class=\"title\">{0}</td>\n" +
"</tr>\n" +
"<tr>\n" +
" <td class=\"header-left\"><small>{1}</small></td>\n" +
" <td class=\"header-left\"><small>{2}</small></td>\n" +
" <td class=\"header-center\"><small>{3}</small></td>\n" +
" <td class=\"header-center\"><small>{4}</small></td>\n" +
" <td class=\"header-center\"><small>{5}</small></td>\n" +
"</tr>\n";
private static final String APPS_ROW_DETAILS_SECTION =
"<tr>\n" +
" <td class=\"row-left\"><small><a href=\"{0}\">{0}</a>" +
"</small></td>\n" +
" <td class=\"row-left\"><small>{1}</small></td>\n" +
" <td class=\"row-center\"><small>{2}</small></td>\n" +
" <td class=\"row-center\">" +
"<small><a href=\"{3}\">{4}</a></small></td>\n";
private static final String MANAGER_APP_ROW_BUTTON_SECTION =
" <td class=\"row-left\">\n" +
" <small>\n" +
" {1} \n" +
" {3} \n" +
" {5} \n" +
" {7} \n" +
" </small>\n" +
" </td>\n" +
"</tr>\n";
private static final String STARTED_APPS_ROW_BUTTON_SECTION =
" <td class=\"row-left\">\n" +
" <small>\n" +
" {1} \n" +
" <a href=\"{2}\">{3}</a> \n" +
" <a href=\"{4}\">{5}</a> \n" +
" <a href=\"{6}\">{7}</a> \n" +
" </small>\n" +
" </td>\n" +
"</tr>\n";
private static final String STOPPED_APPS_ROW_BUTTON_SECTION =
" <td class=\"row-left\">\n" +
" <small>\n" +
" <a href=\"{0}\">{1}</a> \n" +
" {3} \n" +
" {5} \n" +
" <a href=\"{6}\">{7}</a> \n" +
" </small>\n" +
" </td>\n" +
"</tr>\n";
private static final String DEPLOY_SECTION =
"</table>\n" +
"<br>\n" +
"<table border=\"1\" cellspacing=\"0\" cellpadding=\"3\">\n" +
"<tr>\n" +
" <td colspan=\"2\" class=\"title\">{0}</td>\n" +
"</tr>\n" +
"<tr>\n" +
" <td colspan=\"2\" class=\"header-left\"><small>{1}</small></td>\n" +
"</tr>\n" +
"<tr>\n" +
" <td colspan=\"2\">\n" +
"<form method=\"get\" action=\"{2}\">\n" +
"<table cellspacing=\"0\" cellpadding=\"3\">\n" +
"<tr>\n" +
" <td class=\"row-right\">\n" +
" <small>{3}</small>\n" +
" </td>\n" +
" <td class=\"row-left\">\n" +
" <input type=\"text\" name=\"deployPath\" size=\"20\">\n" +
" </td>\n" +
"</tr>\n" +
"<tr>\n" +
" <td class=\"row-right\">\n" +
" <small>{4}</small>\n" +
" </td>\n" +
" <td class=\"row-left\">\n" +
" <input type=\"text\" name=\"deployConfig\" size=\"20\">\n" +
" </td>\n" +
"</tr>\n" +
"<tr>\n" +
" <td class=\"row-right\">\n" +
" <small>{5}</small>\n" +
" </td>\n" +
" <td class=\"row-left\">\n" +
" <input type=\"text\" name=\"deployWar\" size=\"40\">\n" +
" </td>\n" +
"</tr>\n" +
"<tr>\n" +
" <td class=\"row-right\">\n" +
" \n" +
" </td>\n" +
" <td class=\"row-left\">\n" +
" <input type=\"submit\" value=\"{6}\">\n" +
" </td>\n" +
"</tr>\n" +
"</table>\n" +
"</form>\n" +
"</td>\n" +
"</tr>\n";
private static final String UPLOAD_SECTION =
"<tr>\n" +
" <td colspan=\"2\" class=\"header-left\"><small>{0}</small></td>\n" +
"</tr>\n" +
"<tr>\n" +
" <td colspan=\"2\">\n" +
"<form action=\"{1}\" method=\"post\" " +
"enctype=\"multipart/form-data\">\n" +
"<table cellspacing=\"0\" cellpadding=\"3\">\n" +
"<tr>\n" +
" <td class=\"row-right\">\n" +
" <small>{2}</small>\n" +
" </td>\n" +
" <td class=\"row-left\">\n" +
" <input type=\"file\" name=\"deployWar\" size=\"40\">\n" +
" </td>\n" +
"</tr>\n" +
"<tr>\n" +
" <td class=\"row-right\">\n" +
" \n" +
" </td>\n" +
" <td class=\"row-left\">\n" +
" <input type=\"submit\" value=\"{3}\">\n" +
" </td>\n" +
"</tr>\n" +
"</table>\n" +
"</form>\n" +
"</table>\n" +
"<br>\n" +
"\n";
}