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PSI Probe Core - Core logic, data models, and controllers
/*
* Licensed under the GPL License. You may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
* WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE.
*/
package psiprobe.controllers.sessions;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.regex.Pattern;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.catalina.Context;
import org.apache.catalina.Session;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.support.MessageSourceAccessor;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.ServletRequestUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import psiprobe.controllers.AbstractContextHandlerController;
import psiprobe.model.ApplicationSession;
import psiprobe.model.Attribute;
import psiprobe.model.SessionSearchInfo;
import psiprobe.tools.ApplicationUtils;
import psiprobe.tools.SecurityUtils;
/**
* Creates the list of sessions for a particular web application or all web applications if a webapp
* request parameter is not set.
*/
@Controller
public class ListSessionsController extends AbstractContextHandlerController {
@RequestMapping(path = "/sessions.htm")
@Override
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
throws Exception {
return super.handleRequest(request, response);
}
@Override
protected ModelAndView handleContext(String contextName, Context context,
HttpServletRequest request, HttpServletResponse response) throws Exception {
boolean calcSize = ServletRequestUtils.getBooleanParameter(request, "size", false)
&& SecurityUtils.hasAttributeValueRole(getServletContext(), request);
SessionSearchInfo searchInfo = new SessionSearchInfo();
searchInfo.setSearchAction(StringUtils.trimToNull(ServletRequestUtils
.getStringParameter(request, "searchAction", SessionSearchInfo.ACTION_NONE)));
HttpSession sess = request.getSession(false);
if (searchInfo.isApply()) {
searchInfo.setSessionId(StringUtils
.trimToNull(ServletRequestUtils.getStringParameter(request, "searchSessionId")));
searchInfo.setLastIp(
StringUtils.trimToNull(ServletRequestUtils.getStringParameter(request, "searchLastIP")));
searchInfo.setAgeFrom(
StringUtils.trimToNull(ServletRequestUtils.getStringParameter(request, "searchAgeFrom")));
searchInfo.setAgeTo(
StringUtils.trimToNull(ServletRequestUtils.getStringParameter(request, "searchAgeTo")));
searchInfo.setIdleTimeFrom(StringUtils
.trimToNull(ServletRequestUtils.getStringParameter(request, "searchIdleTimeFrom")));
searchInfo.setIdleTimeTo(StringUtils
.trimToNull(ServletRequestUtils.getStringParameter(request, "searchIdleTimeTo")));
searchInfo.setAttrName(StringUtils
.trimToNull(ServletRequestUtils.getStringParameter(request, "searchAttrName")));
if (sess != null) {
sess.setAttribute(SessionSearchInfo.SESS_ATTR_NAME, searchInfo);
}
} else if (sess != null) {
if (searchInfo.isClear()) {
sess.removeAttribute(SessionSearchInfo.SESS_ATTR_NAME);
} else {
SessionSearchInfo ss =
(SessionSearchInfo) sess.getAttribute(SessionSearchInfo.SESS_ATTR_NAME);
if (ss != null) {
searchInfo = ss;
}
}
}
// context is not specified we'll retrieve all sessions of the container
List ctxs;
if (context == null) {
ctxs = getContainerWrapper().getTomcatContainer().findContexts();
} else {
ctxs = new ArrayList<>();
ctxs.add(context);
}
List sessionList = new ArrayList<>();
for (Context ctx : ctxs) {
if (ctx != null && ctx.getManager() != null
&& (!searchInfo.isApply() || searchInfo.isUseSearch())) {
Session[] sessions = ctx.getManager().findSessions();
for (Session session : sessions) {
ApplicationSession appSession =
ApplicationUtils.getApplicationSession(session, calcSize, searchInfo.isUseAttr());
if (appSession != null && matchSession(appSession, searchInfo)) {
if (ctx.getName() != null) {
appSession.setApplicationName(ctx.getName().length() > 0 ? ctx.getName() : "/");
}
sessionList.add(appSession);
}
}
}
}
if (sessionList.isEmpty() && searchInfo.isApply()) {
synchronized (sess) {
populateSearchMessages(searchInfo);
}
}
ModelAndView modelAndView = new ModelAndView(getViewName(), "sessions", sessionList);
modelAndView.addObject("searchInfo", searchInfo);
return modelAndView;
}
/**
* Populate search messages.
*
* @param searchInfo the search info
*/
private void populateSearchMessages(SessionSearchInfo searchInfo) {
MessageSourceAccessor msa = getMessageSourceAccessor();
searchInfo.getErrorMessages().clear();
if (searchInfo.isEmpty()) {
searchInfo.addErrorMessage(msa.getMessage("probe.src.sessions.search.empty"));
} else if (searchInfo.isValid()) {
searchInfo.setInfoMessage(msa.getMessage("probe.src.sessions.search.results.empty"));
} else {
if (!searchInfo.isSessionIdValid()) {
searchInfo.addErrorMessage(msa.getMessage("probe.src.sessions.search.invalid.sessionId",
new Object[] {searchInfo.getSessionIdMsg()}));
}
if (!searchInfo.isAttrNameValid()) {
for (String message : searchInfo.getAttrNameMsgs()) {
searchInfo.addErrorMessage(
msa.getMessage("probe.src.sessions.search.invalid.attrName", new Object[] {message}));
}
}
if (!searchInfo.isAgeFromValid()) {
searchInfo.addErrorMessage(msa.getMessage("probe.src.sessions.search.invalid.ageFrom"));
}
if (!searchInfo.isAgeToValid()) {
searchInfo.addErrorMessage(msa.getMessage("probe.src.sessions.search.invalid.ageTo"));
}
if (!searchInfo.isIdleTimeFromValid()) {
searchInfo
.addErrorMessage(msa.getMessage("probe.src.sessions.search.invalid.idleTimeFrom"));
}
if (!searchInfo.isIdleTimeToValid()) {
searchInfo.addErrorMessage(msa.getMessage("probe.src.sessions.search.invalid.idleTimeTo"));
}
if (searchInfo.getErrorMessages().isEmpty()) {
searchInfo.addErrorMessage(msa.getMessage("probe.src.sessions.search.invalid"));
}
}
}
/**
* Match session.
*
* @param appSession the app session
* @param searchInfo the search info
*
* @return true, if successful
*/
private boolean matchSession(ApplicationSession appSession, SessionSearchInfo searchInfo) {
boolean sessionMatches = true;
if (searchInfo.isUseSearch()) {
if (searchInfo.isUseSessionId() && appSession.getId() != null) {
sessionMatches = searchInfo.getSessionIdPattern().matcher(appSession.getId()).matches();
}
if (sessionMatches && searchInfo.isUseAgeFrom()) {
sessionMatches = appSession.getAge() >= searchInfo.getAgeFromSec().longValue() * 1000;
}
if (sessionMatches && searchInfo.isUseAgeTo()) {
sessionMatches = appSession.getAge() <= searchInfo.getAgeToSec().longValue() * 1000;
}
if (sessionMatches && searchInfo.isUseIdleTimeFrom()) {
sessionMatches =
appSession.getIdleTime() >= searchInfo.getIdleTimeFromSec().longValue() * 1000;
}
if (sessionMatches && searchInfo.isUseIdleTimeTo()) {
sessionMatches =
appSession.getIdleTime() <= searchInfo.getIdleTimeToSec().longValue() * 1000;
}
if (searchInfo.isUseLastIp() && appSession.getLastAccessedIp() != null) {
sessionMatches = appSession.getLastAccessedIp().contains(searchInfo.getLastIp());
}
if (sessionMatches && searchInfo.isUseAttrName()) {
boolean attrMatches = false;
List namePatterns = new ArrayList<>(searchInfo.getAttrNamePatterns());
for (Attribute attr : appSession.getAttributes()) {
String attrName = attr.getName();
if (attrName != null) {
for (Iterator it = namePatterns.iterator(); it.hasNext();) {
if (it.next().matcher(attrName).matches()) {
it.remove();
}
}
if (namePatterns.isEmpty()) {
attrMatches = true;
break;
}
}
}
sessionMatches = attrMatches;
}
}
return sessionMatches;
}
@Override
protected boolean isContextOptional() {
return true;
}
@Value("sessions")
@Override
public void setViewName(String viewName) {
super.setViewName(viewName);
}
}