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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.InetAddress;
import java.net.UnknownHostException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Random;
import java.util.Set;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.http.Part;
import org.apache.catalina.Container;
import org.apache.catalina.Context;
import org.apache.catalina.DistributedManager;
import org.apache.catalina.Manager;
import org.apache.catalina.Session;
import org.apache.catalina.manager.util.BaseSessionComparator;
import org.apache.catalina.manager.util.ReverseComparator;
import org.apache.catalina.manager.util.SessionUtils;
import org.apache.catalina.util.ContextName;
import org.apache.catalina.util.RequestUtil;
import org.apache.catalina.util.ServerInfo;
import org.apache.catalina.util.URLEncoder;
import org.apache.tomcat.util.http.fileupload.ParameterParser;
import org.apache.tomcat.util.res.StringManager;
/**
* 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.
*
* The difference between the ManagerServlet and this
* Servlet is that this Servlet prints out a HTML interface which
* makes it easier to administrate.
*
* However if you use a software that parses the output of
* ManagerServlet you won't be able to upgrade
* to this Servlet since the output are not in the
* same format ar from ManagerServlet
*
* @author Bip Thelin
* @author Malcolm Edgar
* @author Glenn L. Nielsen
* @version $Id: HTMLManagerServlet.java 1140708 2011-06-28 16:22:08Z markt $
* @see ManagerServlet
*/
public final class HTMLManagerServlet extends ManagerServlet {
private static final long serialVersionUID = 1L;
protected static final URLEncoder URL_ENCODER;
protected static final String APPLICATION_MESSAGE = "message";
protected static final String APPLICATION_ERROR = "error";
protected static final String sessionsListJspPath = "/WEB-INF/jsp/sessionsList.jsp";
protected static final String sessionDetailJspPath = "/WEB-INF/jsp/sessionDetail.jsp";
static {
URL_ENCODER = new URLEncoder();
// '/' should not be encoded in context paths
URL_ENCODER.addSafeCharacter('/');
}
private final Random randomSource = new Random();
private boolean showProxySessions = false;
// --------------------------------------------------------- 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
*/
@Override
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
StringManager smClient = getStringManager(request);
// Identify the request parameters that we need
// By obtaining the command from the pathInfo, per-command security can
// be configured in web.xml
String command = request.getPathInfo();
String path = request.getParameter("path");
ContextName cn = null;
if (path != null) {
cn = new ContextName(path, request.getParameter("version"));
}
// 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("/")) {
// No command == list
} else if (command.equals("/list")) {
// List always displayed - nothing to do here
} else if (command.equals("/sessions")) {
try {
doSessions(cn, request, response, smClient);
return;
} catch (Exception e) {
log("HTMLManagerServlet.sessions[" + cn + "]", e);
message = smClient.getString("managerServlet.exception",
e.toString());
}
} else if (command.equals("/upload") || command.equals("/deploy") ||
command.equals("/reload") || command.equals("/undeploy") ||
command.equals("/expire") || command.equals("/start") ||
command.equals("/stop")) {
message =
smClient.getString("managerServlet.postCommand", command);
} else {
message =
smClient.getString("managerServlet.unknownCommand", command);
}
list(request, response, message, smClient);
}
/**
* 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
*/
@Override
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
StringManager smClient = getStringManager(request);
// Identify the request parameters that we need
// By obtaining the command from the pathInfo, per-command security can
// be configured in web.xml
String command = request.getPathInfo();
String path = request.getParameter("path");
ContextName cn = null;
if (path != null) {
cn = new ContextName(path, request.getParameter("version"));
}
String deployPath = request.getParameter("deployPath");
ContextName deployCn = null;
if (deployPath != null) {
deployCn = new ContextName(deployPath,
request.getParameter("deployVersion"));
}
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 = "";
if (command == null || command.length() == 0) {
// No command == list
// List always displayed -> do nothing
} else if (command.equals("/upload")) {
message = upload(request, smClient);
} else if (command.equals("/deploy")) {
message = deployInternal(deployConfig, deployCn, deployWar,
smClient);
} else if (command.equals("/reload")) {
message = reload(cn, smClient);
} else if (command.equals("/undeploy")) {
message = undeploy(cn, smClient);
} else if (command.equals("/expire")) {
message = expireSessions(cn, request, smClient);
} else if (command.equals("/start")) {
message = start(cn, smClient);
} else if (command.equals("/stop")) {
message = stop(cn, smClient);
} else if (command.equals("/findleaks")) {
message = findleaks(smClient);
} else {
// Try GET
doGet(request,response);
return;
}
list(request, response, message, smClient);
}
/**
* Generate a once time token (nonce) for authenticating subsequent
* requests. This will also add the token to the session. The nonce
* generation is a simplified version of ManagerBase.generateSessionId().
*
*/
protected String generateNonce() {
byte random[] = new byte[16];
// Render the result as a String of hexadecimal digits
StringBuilder buffer = new StringBuilder();
randomSource.nextBytes(random);
for (int j = 0; j < random.length; j++) {
byte b1 = (byte) ((random[j] & 0xf0) >> 4);
byte b2 = (byte) (random[j] & 0x0f);
if (b1 < 10)
buffer.append((char) ('0' + b1));
else
buffer.append((char) ('A' + (b1 - 10)));
if (b2 < 10)
buffer.append((char) ('0' + b2));
else
buffer.append((char) ('A' + (b2 - 10)));
}
return buffer.toString();
}
protected String upload(HttpServletRequest request, StringManager smClient)
throws IOException, ServletException {
String message = "";
Part warPart = null;
String filename = null;
Collection parts = request.getParts();
Iterator iter = parts.iterator();
try {
while (iter.hasNext()) {
Part part = iter.next();
if (part.getName().equals("deployWar") && warPart == null) {
warPart = part;
} else {
part.delete();
}
}
while (true) {
if (warPart == null) {
message = smClient.getString(
"htmlManagerServlet.deployUploadNoFile");
break;
}
filename =
extractFilename(warPart.getHeader("Content-Disposition"));
if (!filename.toLowerCase(Locale.ENGLISH).endsWith(".war")) {
message = smClient.getString(
"htmlManagerServlet.deployUploadNotWar", filename);
break;
}
// Get the filename if uploaded name includes a path
if (filename.lastIndexOf('\\') >= 0) {
filename =
filename.substring(filename.lastIndexOf('\\') + 1);
}
if (filename.lastIndexOf('/') >= 0) {
filename =
filename.substring(filename.lastIndexOf('/') + 1);
}
// Identify the appBase of the owning Host of this Context
// (if any)
File file = new File(getAppBase(), filename);
if (file.exists()) {
message = smClient.getString(
"htmlManagerServlet.deployUploadWarExists",
filename);
break;
}
ContextName cn = new ContextName(filename);
String name = cn.getName();
if ((host.findChild(name) != null) && !isDeployed(name)) {
message = smClient.getString(
"htmlManagerServlet.deployUploadInServerXml",
filename);
break;
}
if (!isServiced(name)) {
addServiced(name);
try {
warPart.write(file.getAbsolutePath());
// Perform new deployment
check(name);
} finally {
removeServiced(name);
}
}
break;
}
} catch(Exception e) {
message = smClient.getString
("htmlManagerServlet.deployUploadFail", e.getMessage());
log(message, e);
} finally {
if (warPart != null) {
warPart.delete();
}
warPart = null;
}
return message;
}
/*
* Adapted from FileUploadBase.getFileName()
*/
private String extractFilename(String cd) {
String fileName = null;
if (cd != null) {
String cdl = cd.toLowerCase(Locale.ENGLISH);
if (cdl.startsWith("form-data") || cdl.startsWith("attachment")) {
ParameterParser parser = new ParameterParser();
parser.setLowerCaseNames(true);
// Parameter parser can handle null input
Map params =
parser.parse(cd, ';');
if (params.containsKey("filename")) {
fileName = params.get("filename");
if (fileName != null) {
fileName = fileName.trim();
} else {
// Even if there is no value, the parameter is present,
// so we return an empty file name rather than no file
// name.
fileName = "";
}
}
}
}
return fileName;
}
/**
* 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 cn Name 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, ContextName cn, String war,
StringManager smClient) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.deploy(printWriter, config, cn, war, false, smClient);
return stringWriter.toString();
}
/**
* Render a HTML list of the currently active Contexts in our virtual host,
* and memory and server status information.
*
* @param request The request
* @param response The response
* @param message a message to display
*/
protected void list(HttpServletRequest request,
HttpServletResponse response,
String message,
StringManager smClient) throws IOException {
if (debug >= 1)
log("list: Listing contexts for virtual host '" +
host.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] = smClient.getString("htmlManagerServlet.title");
writer.print(MessageFormat.format
(Constants.BODY_HEADER_SECTION, args));
// Message Section
args = new Object[3];
args[0] = smClient.getString("htmlManagerServlet.messageLabel");
if (message == null || message.length() == 0) {
args[1] = "OK";
} else {
args[1] = RequestUtil.filter(message);
}
writer.print(MessageFormat.format(Constants.MESSAGE_SECTION, args));
// Manager Section
args = new Object[9];
args[0] = smClient.getString("htmlManagerServlet.manager");
args[1] = response.encodeURL(request.getContextPath() + "/html/list");
args[2] = smClient.getString("htmlManagerServlet.list");
args[3] = response.encodeURL
(request.getContextPath() + "/" +
smClient.getString("htmlManagerServlet.helpHtmlManagerFile"));
args[4] = smClient.getString("htmlManagerServlet.helpHtmlManager");
args[5] = response.encodeURL
(request.getContextPath() + "/" +
smClient.getString("htmlManagerServlet.helpManagerFile"));
args[6] = smClient.getString("htmlManagerServlet.helpManager");
args[7] = response.encodeURL
(request.getContextPath() + "/status");
args[8] = smClient.getString("statusServlet.title");
writer.print(MessageFormat.format(Constants.MANAGER_SECTION, args));
// Apps Header Section
args = new Object[7];
args[0] = smClient.getString("htmlManagerServlet.appsTitle");
args[1] = smClient.getString("htmlManagerServlet.appsPath");
args[2] = smClient.getString("htmlManagerServlet.appsVersion");
args[3] = smClient.getString("htmlManagerServlet.appsName");
args[4] = smClient.getString("htmlManagerServlet.appsAvailable");
args[5] = smClient.getString("htmlManagerServlet.appsSessions");
args[6] = smClient.getString("htmlManagerServlet.appsTasks");
writer.print(MessageFormat.format(APPS_HEADER_SECTION, args));
// Apps Row Section
// Create sorted map of deployed applications by context name.
Container children[] = host.findChildren();
String contextNames[] = new String[children.length];
for (int i = 0; i < children.length; i++)
contextNames[i] = children[i].getName();
Arrays.sort(contextNames);
String appsStart = smClient.getString("htmlManagerServlet.appsStart");
String appsStop = smClient.getString("htmlManagerServlet.appsStop");
String appsReload = smClient.getString("htmlManagerServlet.appsReload");
String appsUndeploy =
smClient.getString("htmlManagerServlet.appsUndeploy");
String appsExpire = smClient.getString("htmlManagerServlet.appsExpire");
String noVersion = "" +
smClient.getString("htmlManagerServlet.noVersion") + "";
boolean isHighlighted = true;
boolean isDeployed = true;
String highlightColor = null;
for (String contextName : contextNames) {
Context ctxt = (Context) host.findChild(contextName);
if (ctxt != null) {
// Bugzilla 34818, alternating row colors
isHighlighted = !isHighlighted;
if(isHighlighted) {
highlightColor = "#C3F3C3";
} else {
highlightColor = "#FFFFFF";
}
String contextPath = ctxt.getPath();
String displayPath = contextPath;
if (displayPath.equals("")) {
displayPath = "/";
}
StringBuilder tmp = new StringBuilder();
tmp.append("path=");
tmp.append(URL_ENCODER.encode(displayPath));
if (ctxt.getWebappVersion().length() > 0) {
tmp.append("&version=");
tmp.append(URL_ENCODER.encode(ctxt.getWebappVersion()));
}
String pathVersion = tmp.toString();
try {
isDeployed = isDeployed(contextName);
} catch (Exception e) {
// Assume false on failure for safety
isDeployed = false;
}
args = new Object[7];
args[0] = "" + RequestUtil.filter(displayPath) + "";
if ("".equals(ctxt.getWebappVersion())) {
args[1] = noVersion;
} else {
args[1] = RequestUtil.filter(ctxt.getWebappVersion());
}
if (ctxt.getDisplayName() == null) {
args[2] = " ";
} else {
args[2] = RequestUtil.filter(ctxt.getDisplayName());
}
args[3] = Boolean.valueOf(ctxt.getAvailable());
args[4] = RequestUtil.filter(response.encodeURL(request.getContextPath() +
"/html/sessions?" + pathVersion));
Manager manager = ctxt.getManager();
if (manager instanceof DistributedManager && showProxySessions) {
args[5] = Integer.valueOf(
((DistributedManager)manager).getActiveSessionsFull());
} else if (ctxt.getManager() != null){
args[5] = Integer.valueOf(manager.getActiveSessions());
} else {
args[5] = Integer.valueOf(0);
}
args[6] = highlightColor;
writer.print
(MessageFormat.format(APPS_ROW_DETAILS_SECTION, args));
args = new Object[14];
args[0] = RequestUtil.filter(response.encodeURL(request
.getContextPath() + "/html/start?" + pathVersion));
args[1] = appsStart;
args[2] = RequestUtil.filter(response.encodeURL(request
.getContextPath() + "/html/stop?" + pathVersion));
args[3] = appsStop;
args[4] = RequestUtil.filter(response.encodeURL(request
.getContextPath() + "/html/reload?" + pathVersion));
args[5] = appsReload;
args[6] = RequestUtil.filter(response.encodeURL(request
.getContextPath() + "/html/undeploy?" + pathVersion));
args[7] = appsUndeploy;
args[8] = RequestUtil.filter(response.encodeURL(request
.getContextPath() + "/html/expire?" + pathVersion));
args[9] = appsExpire;
args[10] = smClient.getString(
"htmlManagerServlet.expire.explain");
if (manager == null) {
args[11] = smClient.getString(
"htmlManagerServlet.noManager");
} else {
args[11] = Integer.valueOf(
ctxt.getManager().getMaxInactiveInterval()/60);
}
args[12] = smClient.getString("htmlManagerServlet.expire.unit");
args[13] = highlightColor;
if (ctxt.getName().equals(this.context.getName())) {
writer.print(MessageFormat.format(
MANAGER_APP_ROW_BUTTON_SECTION, args));
} else if (ctxt.getAvailable() && isDeployed) {
writer.print(MessageFormat.format(
STARTED_DEPLOYED_APPS_ROW_BUTTON_SECTION, args));
} else if (ctxt.getAvailable() && !isDeployed) {
writer.print(MessageFormat.format(
STARTED_NONDEPLOYED_APPS_ROW_BUTTON_SECTION, args));
} else if (!ctxt.getAvailable() && isDeployed) {
writer.print(MessageFormat.format(
STOPPED_DEPLOYED_APPS_ROW_BUTTON_SECTION, args));
} else {
writer.print(MessageFormat.format(
STOPPED_NONDEPLOYED_APPS_ROW_BUTTON_SECTION, args));
}
}
}
// Deploy Section
args = new Object[7];
args[0] = smClient.getString("htmlManagerServlet.deployTitle");
args[1] = smClient.getString("htmlManagerServlet.deployServer");
args[2] = response.encodeURL(request.getContextPath() + "/html/deploy");
args[3] = smClient.getString("htmlManagerServlet.deployPath");
args[4] = smClient.getString("htmlManagerServlet.deployConfig");
args[5] = smClient.getString("htmlManagerServlet.deployWar");
args[6] = smClient.getString("htmlManagerServlet.deployButton");
writer.print(MessageFormat.format(DEPLOY_SECTION, args));
args = new Object[4];
args[0] = smClient.getString("htmlManagerServlet.deployUpload");
args[1] = response.encodeURL(request.getContextPath() + "/html/upload");
args[2] = smClient.getString("htmlManagerServlet.deployUploadFile");
args[3] = smClient.getString("htmlManagerServlet.deployButton");
writer.print(MessageFormat.format(UPLOAD_SECTION, args));
// Diagnostics section
args = new Object[5];
args[0] = smClient.getString("htmlManagerServlet.diagnosticsTitle");
args[1] = smClient.getString("htmlManagerServlet.diagnosticsLeak");
args[2] = response.encodeURL(
request.getContextPath() + "/html/findleaks");
args[3] = smClient.getString("htmlManagerServlet.diagnosticsLeakWarning");
args[4] = smClient.getString("htmlManagerServlet.diagnosticsLeakButton");
writer.print(MessageFormat.format(DIAGNOSTICS_SECTION, args));
// Server Header Section
args = new Object[9];
args[0] = smClient.getString("htmlManagerServlet.serverTitle");
args[1] = smClient.getString("htmlManagerServlet.serverVersion");
args[2] = smClient.getString("htmlManagerServlet.serverJVMVersion");
args[3] = smClient.getString("htmlManagerServlet.serverJVMVendor");
args[4] = smClient.getString("htmlManagerServlet.serverOSName");
args[5] = smClient.getString("htmlManagerServlet.serverOSVersion");
args[6] = smClient.getString("htmlManagerServlet.serverOSArch");
args[7] = sm.getString("htmlManagerServlet.serverHostname");
args[8] = sm.getString("htmlManagerServlet.serverIPAddress");
writer.print(MessageFormat.format
(Constants.SERVER_HEADER_SECTION, args));
// Server Row Section
args = new Object[8];
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");
try {
InetAddress address = InetAddress.getLocalHost();
args[6] = address.getHostName();
args[7] = address.getHostAddress();
} catch (UnknownHostException e) {
args[6] = "-";
args[7] = "-";
}
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, ContextName, StringManager)
*
* @param cn Name of the application to be restarted
* @param smClient StringManager for the client's locale
* @return message String
*/
protected String reload(ContextName cn, StringManager smClient) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.reload(printWriter, cn, smClient);
return stringWriter.toString();
}
/**
* Undeploy the web application at the specified context path.
*
* @see ManagerServlet#undeploy(PrintWriter, ContextName, StringManager)
*
* @param cn Name of the application to be undeployed
* @param smClient StringManager for the client's locale
* @return message String
*/
protected String undeploy(ContextName cn, StringManager smClient) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.undeploy(printWriter, cn, smClient);
return stringWriter.toString();
}
/**
* Display session information and invoke list.
*
* @see ManagerServlet#sessions(PrintWriter, ContextName, int,
* StringManager)
*
* @param cn Name of the application to list session information
* @param idle Expire all sessions with idle time ≥ idle for this context
* @param smClient StringManager for the client's locale
* @return message String
*/
protected String sessions(ContextName cn, int idle, StringManager smClient) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.sessions(printWriter, cn, idle, smClient);
return stringWriter.toString();
}
/**
* Start the web application at the specified context path.
*
* @see ManagerServlet#start(PrintWriter, ContextName, StringManager)
*
* @param cn Name of the application to be started
* @param smClient StringManager for the client's locale
* @return message String
*/
protected String start(ContextName cn, StringManager smClient) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.start(printWriter, cn, smClient);
return stringWriter.toString();
}
/**
* Stop the web application at the specified context path.
*
* @see ManagerServlet#stop(PrintWriter, ContextName, StringManager)
*
* @param cn Name of the application to be stopped
* @param smClient StringManager for the client's locale
* @return message String
*/
protected String stop(ContextName cn, StringManager smClient) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.stop(printWriter, cn, smClient);
return stringWriter.toString();
}
/**
* Find potential memory leaks caused by web application reload.
*
* @see ManagerServlet#findleaks(boolean, PrintWriter, StringManager)
*
* @param smClient StringManager for the client's locale
*
* @return message String
*/
protected String findleaks(StringManager smClient) {
StringBuilder msg = new StringBuilder();
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
super.findleaks(false, printWriter, smClient);
String writerText = stringWriter.toString();
if (writerText.length() > 0) {
if (!writerText.startsWith("FAIL -")) {
msg.append(smClient.getString(
"htmlManagerServlet.findleaksList"));
}
msg.append(writerText);
} else {
msg.append(smClient.getString("htmlManagerServlet.findleaksNone"));
}
return msg.toString();
}
/**
* @see javax.servlet.Servlet#getServletInfo()
*/
@Override
public String getServletInfo() {
return "HTMLManagerServlet, Copyright (c) 1999-2011, The Apache Software Foundation";
}
/**
* @see javax.servlet.GenericServlet#init()
*/
@Override
public void init() throws ServletException {
super.init();
// Set our properties from the initialization parameters
String value = null;
value = getServletConfig().getInitParameter("showProxySessions");
showProxySessions = Boolean.parseBoolean(value);
}
// ------------------------------------------------ Sessions administration
/**
*
* Extract the expiration request parameter
*
* @param cn Name of the application from which to expire sessions
* @param req
* @param smClient StringManager for the client's locale
*/
protected String expireSessions(ContextName cn, HttpServletRequest req,
StringManager smClient) {
int idle = -1;
String idleParam = req.getParameter("idle");
if (idleParam != null) {
try {
idle = Integer.parseInt(idleParam);
} catch (NumberFormatException e) {
log("Could not parse idle parameter to an int: " + idleParam);
}
}
return sessions(cn, idle, smClient);
}
/**
*
* @param req
* @param resp
* @param smClient StringManager for the client's locale
* @throws ServletException
* @throws IOException
*/
protected void doSessions(ContextName cn, HttpServletRequest req,
HttpServletResponse resp, StringManager smClient)
throws ServletException, IOException {
req.setAttribute("path", cn.getPath());
req.setAttribute("version", cn.getVersion());
String action = req.getParameter("action");
if (debug >= 1) {
log("sessions: Session action '" + action +
"' for web application '" + cn.getDisplayName() + "'");
}
if ("sessionDetail".equals(action)) {
String sessionId = req.getParameter("sessionId");
displaySessionDetailPage(req, resp, cn, sessionId, smClient);
return;
} else if ("invalidateSessions".equals(action)) {
String[] sessionIds = req.getParameterValues("sessionIds");
int i = invalidateSessions(cn, sessionIds, smClient);
req.setAttribute(APPLICATION_MESSAGE, "" + i + " sessions invalidated.");
} else if ("removeSessionAttribute".equals(action)) {
String sessionId = req.getParameter("sessionId");
String name = req.getParameter("attributeName");
boolean removed =
removeSessionAttribute(cn, sessionId, name, smClient);
String outMessage = removed ? "Session attribute '" + name + "' removed." : "Session did not contain any attribute named '" + name + "'";
req.setAttribute(APPLICATION_MESSAGE, outMessage);
displaySessionDetailPage(req, resp, cn, sessionId, smClient);
return;
} // else
displaySessionsListPage(cn, req, resp, smClient);
}
protected List getSessionsForName(ContextName cn,
StringManager smClient) {
if ((cn == null) || !(cn.getPath().startsWith("/") ||
cn.getPath().equals(""))) {
String path = null;
if (cn != null) {
path = cn.getPath();
}
throw new IllegalArgumentException(smClient.getString(
"managerServlet.invalidPath",
RequestUtil.filter(path)));
}
Context ctxt = (Context) host.findChild(cn.getName());
if (null == ctxt) {
throw new IllegalArgumentException(smClient.getString(
"managerServlet.noContext",
RequestUtil.filter(cn.getDisplayName())));
}
Manager manager = ctxt.getManager();
List sessions = new ArrayList();
sessions.addAll(Arrays.asList(manager.findSessions()));
if (manager instanceof DistributedManager && showProxySessions) {
// Add dummy proxy sessions
Set sessionIds =
((DistributedManager) manager).getSessionIdsFull();
// Remove active (primary and backup) session IDs from full list
for (Session session : sessions) {
sessionIds.remove(session.getId());
}
// Left with just proxy sessions - add them
for (String sessionId : sessionIds) {
sessions.add(new DummyProxySession(sessionId));
}
}
return sessions;
}
protected Session getSessionForNameAndId(ContextName cn, String id,
StringManager smClient) {
List sessions = getSessionsForName(cn, smClient);
if (sessions == null || sessions.isEmpty()) return null;
for(Session session : sessions) {
if (session.getId().equals(id)) {
return session;
}
}
return null;
}
/**
*
* @param cn Name of the application for which the sessions will be listed
* @param req
* @param resp
* @param smClient StringManager for the client's locale
* @throws ServletException
* @throws IOException
*/
protected void displaySessionsListPage(ContextName cn,
HttpServletRequest req, HttpServletResponse resp,
StringManager smClient)
throws ServletException, IOException {
List sessions = getSessionsForName(cn, smClient);
String sortBy = req.getParameter("sort");
String orderBy = null;
if (null != sortBy && !"".equals(sortBy.trim())) {
Comparator comparator = getComparator(sortBy);
if (comparator != null) {
orderBy = req.getParameter("order");
if ("DESC".equalsIgnoreCase(orderBy)) {
comparator = new ReverseComparator(comparator);
orderBy = "ASC";
} else {
orderBy = "DESC";
}
try {
Collections.sort(sessions, comparator);
} catch (IllegalStateException ise) {
// at least 1 of the sessions is invalidated
req.setAttribute(APPLICATION_ERROR, "Can't sort session list: one session is invalidated");
}
} else {
log("WARNING: unknown sort order: " + sortBy);
}
}
// keep sort order
req.setAttribute("sort", sortBy);
req.setAttribute("order", orderBy);
req.setAttribute("activeSessions", sessions);
//strong>NOTE - This header will be overridden
// automatically if a RequestDispatcher.forward() call is
// ultimately invoked.
resp.setHeader("Pragma", "No-cache"); // HTTP 1.0
resp.setHeader("Cache-Control", "no-cache,no-store,max-age=0"); // HTTP 1.1
resp.setDateHeader("Expires", 0); // 0 means now
getServletContext().getRequestDispatcher(sessionsListJspPath).include(req, resp);
}
/**
*
* @param req
* @param resp
* @param smClient StringManager for the client's locale
* @throws ServletException
* @throws IOException
*/
protected void displaySessionDetailPage(HttpServletRequest req,
HttpServletResponse resp, ContextName cn, String sessionId,
StringManager smClient) throws ServletException, IOException {
Session session = getSessionForNameAndId(cn, sessionId, smClient);
//strong>NOTE - This header will be overridden
// automatically if a RequestDispatcher.forward() call is
// ultimately invoked.
resp.setHeader("Pragma", "No-cache"); // HTTP 1.0
resp.setHeader("Cache-Control", "no-cache,no-store,max-age=0"); // HTTP 1.1
resp.setDateHeader("Expires", 0); // 0 means now
req.setAttribute("currentSession", session);
getServletContext().getRequestDispatcher(resp.encodeURL(sessionDetailJspPath)).include(req, resp);
}
/**
* Invalidate HttpSessions
* @param cn Name of the application for which sessions are to be
* invalidated
* @param sessionIds
* @param smClient StringManager for the client's locale
* @return number of invalidated sessions
* @throws IOException
*/
protected int invalidateSessions(ContextName cn, String[] sessionIds,
StringManager smClient) throws IOException {
if (null == sessionIds) {
return 0;
}
int nbAffectedSessions = 0;
for (int i = 0; i < sessionIds.length; ++i) {
String sessionId = sessionIds[i];
HttpSession session =
getSessionForNameAndId(cn, sessionId, smClient).getSession();
if (null == session) {
// Shouldn't happen, but let's play nice...
if (debug >= 1) {
log("WARNING: can't invalidate null session " + sessionId);
}
continue;
}
try {
session.invalidate();
++nbAffectedSessions;
if (debug >= 1) {
log("Invalidating session id " + sessionId);
}
} catch (IllegalStateException ise) {
if (debug >= 1) {
log("Can't invalidate already invalidated session id " + sessionId);
}
}
}
return nbAffectedSessions;
}
/**
* Removes an attribute from an HttpSession
* @param cn Name of the application hosting the session from which the
* attribute is to be removed
* @param sessionId
* @param attributeName
* @param smClient StringManager for the client's locale
* @return true if there was an attribute removed, false otherwise
* @throws IOException
*/
protected boolean removeSessionAttribute(ContextName cn, String sessionId,
String attributeName, StringManager smClient) throws IOException {
HttpSession session =
getSessionForNameAndId(cn, sessionId, smClient).getSession();
if (null == session) {
// Shouldn't happen, but let's play nice...
if (debug >= 1) {
log("WARNING: can't remove attribute '" + attributeName + "' for null session " + sessionId);
}
return false;
}
boolean wasPresent = (null != session.getAttribute(attributeName));
try {
session.removeAttribute(attributeName);
} catch (IllegalStateException ise) {
if (debug >= 1) {
log("Can't remote attribute '" + attributeName + "' for invalidated session id " + sessionId);
}
}
return wasPresent;
}
protected Comparator getComparator(String sortBy) {
Comparator comparator = null;
if ("CreationTime".equalsIgnoreCase(sortBy)) {
comparator = new BaseSessionComparator() {
@Override
public Comparable getComparableObject(Session session) {
return new Date(session.getCreationTime());
}
};
} else if ("id".equalsIgnoreCase(sortBy)) {
comparator = new BaseSessionComparator() {
@Override
public Comparable getComparableObject(Session session) {
return session.getId();
}
};
} else if ("LastAccessedTime".equalsIgnoreCase(sortBy)) {
comparator = new BaseSessionComparator() {
@Override
public Comparable getComparableObject(Session session) {
return new Date(session.getLastAccessedTime());
}
};
} else if ("MaxInactiveInterval".equalsIgnoreCase(sortBy)) {
comparator = new BaseSessionComparator() {
@Override
public Comparable getComparableObject(Session session) {
return new Date(session.getMaxInactiveInterval());
}
};
} else if ("new".equalsIgnoreCase(sortBy)) {
comparator = new BaseSessionComparator() {
@Override
public Comparable getComparableObject(Session session) {
return Boolean.valueOf(session.getSession().isNew());
}
};
} else if ("locale".equalsIgnoreCase(sortBy)) {
comparator = new BaseSessionComparator() {
@Override
public Comparable getComparableObject(Session session) {
return JspHelper.guessDisplayLocaleFromSession(session);
}
};
} else if ("user".equalsIgnoreCase(sortBy)) {
comparator = new BaseSessionComparator() {
@Override
public Comparable getComparableObject(Session session) {
return JspHelper.guessDisplayUserFromSession(session);
}
};
} else if ("UsedTime".equalsIgnoreCase(sortBy)) {
comparator = new BaseSessionComparator() {
@Override
public Comparable getComparableObject(Session session) {
return new Date(SessionUtils.getUsedTimeForSession(session));
}
};
} else if ("InactiveTime".equalsIgnoreCase(sortBy)) {
comparator = new BaseSessionComparator() {
@Override
public Comparable getComparableObject(Session session) {
return new Date(SessionUtils.getInactiveTimeForSession(session));
}
};
} else if ("TTL".equalsIgnoreCase(sortBy)) {
comparator = new BaseSessionComparator() {
@Override
public Comparable getComparableObject(Session session) {
return new Date(SessionUtils.getTTLForSession(session));
}
};
}
//TODO: complete this to TTL, etc.
return comparator;
}
// ------------------------------------------------------ Private Constants
// These HTML sections are broken in relatively small sections, because of
// limited number of substitutions MessageFormat can process
// (maximum of 10).
private static final String APPS_HEADER_SECTION =
"
\n" +
"
\n" +
"
{0}
\n" +
"
\n" +
"
\n" +
"
{1}
\n" +
"
{2}
\n" +
"
{3}
\n" +
"
{4}
\n" +
"
{5}
\n" +
"
{6}
\n" +
"
\n";
private static final String APPS_ROW_DETAILS_SECTION =
"
