I want to implement openId using a popup as the UI. So in my view I create a
popup that redirect to a servlet using javascript:
public void onLogin(String provider, String username) {
String url = "/openid/mylogin?provider=" + provider;
if (username != null) {
url = url + "&username=" + username;
}
String features =
"width=450,height=500,location=1,status=1,resizable=yes";
JavaScriptObject window = WindowUtil.newWindow(url, "login",
features);
}
public static native JavaScriptObject newWindow(String url, String name,
String features)/*-{
var window = $wnd.open(url, name, features);
// Center the window
var width = @com.google.gwt.user.client.Window::getClientWidth()();
var height = @com.google.gwt.user.client.Window::getClientHeight()();
window.moveTo((width - 450) / 2, (height - 500) / 2);
return window;
}-*/;
The servlet:
@Override
public void doPost(HttpServletRequest request, HttpServletResponse
response)
throws IOException, ServletException {
UserService userService = UserServiceFactory.getUserService();
User user = userService.getCurrentUser();
String provider = request.getParameter("provider");
if (user == null) {
if (provider != null) {
// Provider
Map<String, String> authDomainMap = new HashMap<String,
String>();
authDomainMap.put("google", "google.com");
authDomainMap.put("yahoo", "yahoo.com");
// URL
Map<String, String> federatedIdentityMap = new
HashMap<String, String>();
federatedIdentityMap.put("google",
"https://www.google.com/accounts/o8/id";);
federatedIdentityMap.put("yahoo",
"http://open.login.yahooapis.com/openid20/www.yahoo.com/xrds";);
// Attributes
Set<String> attributesRequest = new HashSet<String>();
// attributesRequest.add("openid.mode=checkid_immediate");
//
attributesRequest.add("openid.ns=http://specs.openid.net/auth/2.0";);
//
attributesRequest.add("openid.return_to=http://www.google.com";);
String loginURL = userService.createLoginURL(
request.getRequestURI(), authDomainMap.get(provider),
federatedIdentityMap.get(provider),
attributesRequest);
System.out.println(loginURL);
response.sendRedirect(loginURL);
}
} else {
// Associate the session to the current user
userDao.get().setCurrentUser(user);
}
}
During the execution, the dummy form is displayed and then I click on Log
In. The loginURL is /_ah/login?continue=%2Fopenid%2Fmylogin
After clicking on Log In, the popup is closed and nothing happen, except
that the user is now logged in. At that point I was expecting that _ah/login
was called to set the user, and then it would redirect to the
/openid/mylogin (continue parameter), so I could assign the user to the
current session.
I know that the user has been logged in because then when I open the popup
again, the user is not null and I can assign the user to the current
session. I only tested my code on my dev server and not on app engine.
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