/**
* This abstract function performs the processing of the user request.
* @param User $user The requesting user. If the user is not null, then by convention
* actions will assume the user is authenticated, otherwise not.
* @throws Exception If an error was encountered while processing this request, an exception
* will be thrown.
* @return void
*/
public function processRequest(User $user = NULL)
{
$returnUrl = UrlFormatter::formatRoutingItemUrl('actions/LoginAction');
$imageSearchViewUrl = UrlFormatter::formatRoutingItemUrl('views/ImageSearchView');
// if the user is already logged in redirect to the image search view
if ($user != NULL) {
header("Location: {$imageSearchViewUrl}");
return;
} else {
if (!isset($_POST[self::POST_PARAM_USERNAME]) || !isset($_POST[self::POST_PARAM_USERNAME])) {
$loginView = new LoginView();
$loginView->processRequest();
exit;
}
$username = $_POST[self::POST_PARAM_USERNAME];
$password = $_POST[self::POST_PARAM_PASSWORD];
$user = User::loadUserByUsername(DbConnectionUtil::getDbConnection(), $username);
if ($user == NULL || $user->getPassword() != md5($password)) {
$loginView = new LoginView();
$loginView->setPreviousAttemptErrorMessage("Login Failed");
$loginView->processRequest();
exit;
} else {
UserAuthUtil::registerAuthenticatedUser($user);
header("Location: {$imageSearchViewUrl}");
return;
}
}
}
/**
* If the requester is authenticated, returns a reference to the user object associated
* with the requester.
* @return A reference to the user object associated with the requester, or NULL if the requester isn't
* authenticated.
*/
public static function getAuthenticatedUser()
{
if (UserAuthUtil::isRequesterAuthenticated()) {
return $_SESSION['AUTHENTICATED_USER'];
} else {
return NULL;
}
}
/**
* This abstract function performs the processing of the user request.
* @param User $user The requesting user. If the user is not null, then by convention
* actions will assume the user is authenticated, otherwise not.
* @throws Exception If an error was encountered while processing this request, an exception
* will be thrown.
* @return void
*/
public function processRequest(User $user = NULL)
{
if ($user != NULL) {
UserAuthUtil::unregisterAuthenticatedUser($user);
}
$landingPageUrl = UrlFormatter::formatRoutingItemUrl('views/LandingPageView');
header("Location: {$landingPageUrl}");
}
// map the views
loadAndMapIndexRoutingItem('views/ImageCollectionSearchView', $indexRoutingItemMap);
loadAndMapIndexRoutingItem('views/ImageSearchView', $indexRoutingItemMap);
loadAndMapIndexRoutingItem('views/EditImageView', $indexRoutingItemMap);
loadAndMapIndexRoutingItem('views/ImageDetailsView', $indexRoutingItemMap);
loadAndMapIndexRoutingItem('views/ImageSearchResultsView', $indexRoutingItemMap);
loadAndMapIndexRoutingItem('views/LoginView', $indexRoutingItemMap);
loadAndMapIndexRoutingItem('views/StartJourneyView', $indexRoutingItemMap);
loadAndMapIndexRoutingItem('views/JourneyStepView', $indexRoutingItemMap);
loadAndMapIndexRoutingItem('views/FinishJourneyView', $indexRoutingItemMap);
loadAndMapIndexRoutingItem('views/JourneyDetailsView', $indexRoutingItemMap);
loadAndMapIndexRoutingItem('views/ListJourneysView', $indexRoutingItemMap);
loadAndMapIndexRoutingItem('views/AboutView', $indexRoutingItemMap);
// this stores the default landing page routing item
$defaultIndexRoutingItem = loadAndMapIndexRoutingItem('views/LandingPageView', $indexRoutingItemMap);
$user = UserAuthUtil::getAuthenticatedUser();
// attempt to parse an index routing item from the request, if one exists route it to the landing page
if (isset($_GET[IndexRoutingItem::INDEX_ROUTING_ITEM_GET_PARAM])) {
$requestedIndexRoutingItemKey = $_GET[IndexRoutingItem::INDEX_ROUTING_ITEM_GET_PARAM];
if (!empty($requestedIndexRoutingItemKey) && isset($indexRoutingItemMap[$requestedIndexRoutingItemKey])) {
$indexRoutingItem = $indexRoutingItemMap[$requestedIndexRoutingItemKey];
// verify authentication standards are met for the index routing item
if ($indexRoutingItem->requiresAuthentication()) {
// if the user isn't authenticated, redirect to the default landing page
if ($user == NULL) {
$defaultIndexRoutingItem->processRequest(NULL);
exit;
}
// verify authorization standards are met for the routing item
if (!$indexRoutingItem->isUserAuthorized($user)) {
// TODO redirect to an error page with the message that the requested page requires authorization
