Java tutorial
/* This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2010 Servoy BV This program is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program; if not, see http://www.gnu.org/licenses or write to the Free Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 */ package com.servoy.j2db.server.headlessclient; import java.rmi.RemoteException; import java.util.Iterator; import javax.servlet.http.HttpSession; import org.apache.wicket.AbortException; import org.apache.wicket.Page; import org.apache.wicket.PageParameters; import org.apache.wicket.RequestCycle; import org.apache.wicket.RestartResponseAtInterceptPageException; import org.apache.wicket.RestartResponseException; import org.apache.wicket.Session; import org.apache.wicket.markup.html.WebPage; import org.apache.wicket.markup.html.panel.FeedbackPanel; import org.apache.wicket.protocol.http.WebRequest; import org.apache.wicket.protocol.http.WebResponse; import org.apache.wicket.protocol.http.servlet.AbortWithWebErrorCodeException; import org.apache.wicket.request.target.basic.RedirectRequestTarget; import org.apache.wicket.request.target.coding.HybridUrlCodingStrategy; import com.servoy.j2db.FormManager; import com.servoy.j2db.IMainContainer; import com.servoy.j2db.IWebClientApplication; import com.servoy.j2db.Messages; import com.servoy.j2db.persistence.Form; import com.servoy.j2db.persistence.IRepository; import com.servoy.j2db.persistence.Solution; import com.servoy.j2db.persistence.SolutionMetaData; import com.servoy.j2db.scripting.StartupArguments; import com.servoy.j2db.server.headlessclient.MainPage.ShowUrlInfo; import com.servoy.j2db.server.shared.ApplicationServerRegistry; import com.servoy.j2db.util.Debug; import com.servoy.j2db.util.Settings; import com.servoy.j2db.util.Utils; public class SolutionLoader extends WebPage { private static final long serialVersionUID = 1L; public SolutionLoader(PageParameters pp) { SolutionMetaData theReq = null; try { if (ApplicationServerRegistry.get().getDataServer().isInGlobalMaintenanceMode() || ApplicationServerRegistry.get().getDataServer().isInServerMaintenanceMode()) { // do this before redirect & register client - where it is usually detected, because when clustered // this should result in a valid switch to another server in the cluster by the load balancer; if we wait until // after redirect, a page expired will happen on the other server // throw new AbortWithHttpStatusException(HttpServletResponse.SC_SERVICE_UNAVAILABLE, false); this works, but doesn't show maintenance error page for non-clustered case Session.get().invalidate(); RequestCycle.get().setRedirect(false); throw new RestartResponseException(new ServoyServerInMaintenanceMode()); } } catch (RemoteException e) { // will not happen throw new RuntimeException(e); } FeedbackPanel feedback = new FeedbackPanel("feedback"); add(feedback); StartupArguments argumentsScope = new StartupArguments(pp); String solutionName = argumentsScope.getSolutionName(); String method = argumentsScope.getMethodName(); String firstArgument = argumentsScope.getFirstArgument(); try { IRepository repository = ApplicationServerRegistry.get().getLocalRepository(); SolutionMetaData smd = (SolutionMetaData) repository.getRootObjectMetaData(solutionName, IRepository.SOLUTIONS); if (smd == null || smd.getSolutionType() == SolutionMetaData.SOLUTION || smd.getSolutionType() == SolutionMetaData.WEB_CLIENT_ONLY || ((smd.getSolutionType() == SolutionMetaData.MOBILE || smd.getSolutionType() == SolutionMetaData.MODULE) && ApplicationServerRegistry.get().isDeveloperStartup())) { theReq = smd; } else { Debug.log("Not loading solution " + smd.getName() + ", it is not configured for webclient usage"); theReq = null; } if (theReq != null) { Solution sol = (Solution) repository.getActiveRootObject(solutionName, IRepository.SOLUTIONS); if (sol.getLoginSolutionName() == null && sol.getLoginFormID() <= 0 && theReq.getMustAuthenticate() && !((WebClientSession) getSession()).isSignedIn()) { String authType = pp.getString("sv_auth_type"); //$NON-NLS-1$ boolean authorized = false; if ((authType != null && authType.equals("basic")) || //$NON-NLS-1$ (authType == null && Utils.getAsBoolean(Settings.getInstance() .getProperty("servoy.webclient.basic.authentication", "false")))) //$NON-NLS-1$ //$NON-NLS-2$ { String authorizationHeader = ((WebRequest) RequestCycle.get().getRequest()) .getHttpServletRequest().getHeader("Authorization"); //$NON-NLS-1$ if (authorizationHeader != null) { String authorization = authorizationHeader.substring(6); // TODO: which encoding to use? see http://tools.ietf.org/id/draft-reschke-basicauth-enc-05.xml authorization = new String(Utils.decodeBASE64(authorization)); int index = authorization.indexOf(':'); if (index > 0) { String username = authorization.substring(0, index); String password = authorization.substring(index + 1); authorized = ((WebClientSession) getSession()).authenticate(username, password); } } if (!authorized) { ((WebResponse) RequestCycle.get().getResponse()).getHttpServletResponse() .setHeader("WWW-Authenticate", "Basic realm=\"webclient\""); //$NON-NLS-1$ //$NON-NLS-2$ throw new AbortWithWebErrorCodeException(401); } } if (!authorized) { //signin first throw new RestartResponseAtInterceptPageException(SignIn.class); } } WebClientSession session; HttpSession httpSession; synchronized (sol) { // create the http session httpSession = ((WebRequest) RequestCycle.get().getRequest()).getHttpServletRequest() .getSession(); Session.unset(); session = (WebClientSession) getSession(); session.bind(); session.getClientInfo(); } synchronized (httpSession) { IWebClientApplication sc = session.getWebClient(); if (sc != null && sc.getSolution() != null && sc.getFlattenedSolution().getMainSolutionMetaData().getName().equals(solutionName)) { // make sure it is registered as a start of a request. session.getWebClient().onBeginRequest(session); FormManager formManager = ((FormManager) sc.getFormManager()); String currentPageMapName = getPageMap().getName(); if (currentPageMapName != null && !Utils .equalObjects(sc.getMainPage().getPageMap().getName(), currentPageMapName)) { IMainContainer newContainer = formManager.getOrCreateMainContainer(currentPageMapName); formManager.setCurrentContainer(newContainer, currentPageMapName); } // remove the method/argument from the page parameters, they shouldn't be used to generate a redirect url. pp.remove("method"); //$NON-NLS-1$ pp.remove("m"); //$NON-NLS-1$ pp.remove("argument"); //$NON-NLS-1$ pp.remove("a"); //$NON-NLS-1$ // also remove client method arguments to avoid stackoverflow for deeplinked authenticate solutions (js_login called inside deeplinked method) sc.handleArguments(null); if (method != null) { try { sc.getScriptEngine().getScopesScope().executeGlobalFunction(null, method, (firstArgument == null ? null : new Object[] { firstArgument, argumentsScope.toJSMap() }), false, false); } catch (Exception e1) { sc.reportError( Messages.getString("servoy.formManager.error.ExecutingOpenSolutionMethod", //$NON-NLS-1$ new Object[] { method }), e1); } } if (formManager.getCurrentContainer().getController() == null) { Iterator<Form> e = sc.getFlattenedSolution().getForms(true); // add all forms first, they may be referred to in the login form Form first = sc.getFlattenedSolution().getForm(sc.getSolution().getFirstFormID()); boolean formCanBeInstantiated = sc.getFlattenedSolution().formCanBeInstantiated(first); while (!formCanBeInstantiated && e.hasNext()) { Form form = e.next(); formCanBeInstantiated = sc.getFlattenedSolution().formCanBeInstantiated(form); if (formCanBeInstantiated) first = form; } if (first != null) { formManager.showFormInCurrentContainer(first.getName()); } } } else { sc = session.startSessionClient(theReq, method, argumentsScope); } if (sc.isValid()) { Page page = sc.getMainPage(); // do get it from the real wicket session so that a lock is set on this page. (or waited for the lock) Page p = session.getPage(page.getPageMapName(), page.getId(), page.getCurrentVersionNumber()); if (p instanceof MainPage) { page = p; ShowUrlInfo urlScript = ((MainPage) p).getShowUrlInfo(); if (urlScript != null && "_self".equals(urlScript.getTarget())) { // a redirect was found to it self, just redirect directly to that one. // clear the current main pages show url script first. ((MainPage) p).getShowUrlScript(); RequestCycle.get().setRequestTarget(new RedirectRequestTarget(urlScript.getUrl())); return; } } HybridUrlCodingStrategy.setInitialPageParameters(page, pp); setResponsePage(page); setRedirect(true); //setRedirect(Utils.getAsBoolean(sc.getSettings().getProperty("servoy.webclient.nice.urls", "false"))); } } } } catch (RestartResponseAtInterceptPageException restart) { setRedirect(false); throw restart; } catch (AbortException abort) { setRedirect(true); throw abort; } catch (Exception e) { Debug.error(e); error(e.toString()); } } }