use of org.olat.core.gui.components.form.flexible.impl.InvalidRequestParameterException in project OpenOLAT by OpenOLAT.
the class DMZDispatcher method execute.
/**
* Main method called by OpenOLATServlet. This processess all requests for
* users who are not authenticated.
*
* @param request
* @param response
* @param uriPrefix
*/
@Override
public void execute(HttpServletRequest request, HttpServletResponse response) {
if (rejectRequest(request, response)) {
return;
}
UserRequest ureq = null;
String uriPrefix = DispatcherModule.getLegacyUriPrefix(request);
try {
// upon creation URL is checked for
ureq = new UserRequestImpl(uriPrefix, request, response);
} catch (NumberFormatException nfe) {
// a 404 message must be shown -> e.g. robots correct their links.
if (log.isDebug()) {
log.debug("Bad Request " + request.getPathInfo());
}
DispatcherModule.sendBadRequest(request.getPathInfo(), response);
return;
}
try {
// find out about which subdispatcher is meant
// e.g. got here because of /dmz/...
// maybe something like /dmz/registration/
//
// add the context path to align with uriPrefix e.g. /olat/dmz/
String pathInfo = request.getContextPath() + request.getPathInfo();
ChiefControllerCreator subPathccc = null;
// if /olat/dmz/
boolean dmzOnly = pathInfo.equals(uriPrefix);
if (!dmzOnly) {
int sl = pathInfo.indexOf('/', uriPrefix.length());
String sub;
if (sl > 1) {
// e.g. something like /registration/ or /pwchange/
sub = pathInfo.substring(uriPrefix.length() - 1, sl + 1);
} else {
// e.g. something like /info.html from (/dmz/info.html)
sub = pathInfo;
}
// chief controller creator for sub path, e.g.
subPathccc = dmzServicesByPath.get(sub);
if (subPathccc != null) {
UserSession usess = ureq.getUserSession();
Windows ws = Windows.getWindows(usess);
synchronized (ws) {
// o_clusterOK by:fj per user session
ChiefController occ = subPathccc.createChiefController(ureq);
Window window = occ.getWindow();
window.setUriPrefix(uriPrefix);
ws.registerWindow(window);
window.dispatchRequest(ureq, true);
return;
}
}
}
// else a /olat/dmz/ request
UserSession usess = ureq.getUserSession();
Windows ws = Windows.getWindows(usess);
// and make it useless under heavily load or 2 concurrent requests
synchronized (usess) {
// o_clusterOK by:fj per user session
Window window;
boolean windowHere = ws.isExisting(uriPrefix, ureq.getWindowID());
boolean validDispatchUri = ureq.isValidDispatchURI();
if (validDispatchUri && !windowHere) {
// probably valid framework link from previous user && new Session(no window):
// when a previous user logged off, and 30min later (when the httpsession is invalidated), the next user clicks e.g. on
// the log-in link in the -same- browser window ->
// -> there is no window -> create a new one
window = null;
CoreSpringFactory.getImpl(UserSessionManager.class).signOffAndClear(usess);
usess.setLocale(LocaleNegotiator.getPreferedLocale(ureq));
// update locale infos
I18nManager.updateLocaleInfoToThread(usess);
// request new windows since it is a new usersession, the old one was purged
ws = Windows.getWindows(usess);
} else if (validDispatchUri) {
window = ws.getWindow(ureq);
} else if (dmzOnly) {
// e.g. /dmz/ -> start screen, clear previous session data
window = null;
CoreSpringFactory.getImpl(UserSessionManager.class).signOffAndClear(usess);
usess.setLocale(LocaleNegotiator.getPreferedLocale(ureq));
// update locale infos
I18nManager.updateLocaleInfoToThread(usess);
OAuthLoginModule oauthModule = CoreSpringFactory.getImpl(OAuthLoginModule.class);
if (canRedirectConfigurableOAuth(request, response, oauthModule)) {
return;
} else if (canRedirectOAuth(request, oauthModule)) {
OAuthSPI oauthSpi = oauthModule.getRootProvider();
HttpSession session = request.getSession();
OAuthResource.redirect(oauthSpi, response, session);
return;
}
// request new windows since it is a new usersession, the old one was purged
ws = Windows.getWindows(usess);
} else {
response.sendError(HttpServletResponse.SC_BAD_REQUEST);
return;
}
if (window == null) {
// no window found, -> start a new WorkFlow/Controller and obtain the window
// main controller which also implements the windowcontroller for pagestatus and modal dialogs
Object wSettings = usess.getEntry(WINDOW_SETTINGS);
ChiefController occ = chiefControllerCreator.createChiefController(ureq);
window = occ.getWindow();
window.setUriPrefix(uriPrefix);
ws.registerWindow(window);
String businessPath = (String) usess.removeEntryFromNonClearedStore(DMZDISPATCHER_BUSINESSPATH);
if (businessPath != null) {
List<ContextEntry> ces = BusinessControlFactory.getInstance().createCEListFromString(businessPath);
window.getDTabs().activate(ureq, null, ces);
}
// apply the settings forward
usess.putEntryInNonClearedStore(WINDOW_SETTINGS, wSettings);
}
window.dispatchRequest(ureq);
}
} catch (InvalidRequestParameterException e) {
try {
response.sendError(HttpServletResponse.SC_BAD_REQUEST);
} catch (IOException e1) {
log.error("An exception occured while handling the invalid request parameter exception...", e1);
}
} catch (Throwable th) {
try {
ChiefController msgcc = MsgFactory.createMessageChiefController(ureq, th);
// the controller's window must be failsafe also
msgcc.getWindow().dispatchRequest(ureq, true);
// do not dispatch (render only), since this is a new Window created as
// a result of another window's click.
} catch (Throwable t) {
log.error("An exception occured while handling the exception...", t);
}
}
}
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