GMail authentication with GWT + GAE - works in development but fails in production

[Deepak Singh]

Hi All,

I am authenticating my users through GMail login in GWt + GAE environment. Code is as follows:

GWT code:

final Frame frameForGmail = new Frame();

final Image gmailIcon = Image.wrap(Document.get().getElementById("gmailIcon"));

final DialogBox loginPopUp = new DialogBox(true, false);

gmailIcon.addClickHandler(new ClickHandler() {

@Override

public void onClick(ClickEvent event) {

commonRpcService.gmailLogin(new AsyncCallback<String>() {

@Override

public void onFailure(Throwable caught) {

Window.alert("RPC Failed");

}

@Override

public void onSuccess(String result) {

if(emailValidation(result)) {

Document.get().getElementById("loginMsg").appendChild(new Label("Welcome "+result).getElement());

}else {

frameForGmail.setUrl(result);

loginPopUp.show();

}

}

});

}

});

Server side:

@Override

public String gmailLogin() {

UserService userService = UserServiceFactory.getUserService();

User user = userService.getCurrentUser();

if(user != null) {

HttpSession session = getThreadLocalRequest().getSession(true);

session.setAttribute("LOGGED_IN_USER_EMAIL_ID", user.getEmail());

return user.getEmail();

}else {

try {

                  // getThreadLocalResponse().sendRedirect(userService.createLoginURL(getThreadLocalRequest().getRequestURI()));

return userService.createLoginURL("www.yatrafinder.com");

} catch (Exception e) {

System.out.println("CommonRpcServiceImpl.gmailLogin() "+e.getMessage());

}

}

return "Login not validated";

}

The above code works fine in development mode. It loads Frame with default login screen for development and works fine everything.

But when i deploy this app to GAE 1.6.1, it fails to load the frame with gmail login screen. The DialogBox opens but with blank screen.

I could not find out why it is happening. Kindly help.

App engine settings is done properly with default authentication as google account.

Thanks in advance 
Deepak Singh

[Deepak Singh]

Any help pls. i am still stuck with it.

--
Deepak Singh

[Joseph Lust]

Deepak,

Can you run your app in DevMode but using the remote server option so that calls are being sent out to the actual Google APIs? I find it useful as you can step through and debug the production code in Eclipse, but the backend code is in production.

Just disable the built in server option, and in the GWT tab and URL field put the full remote path where you normally see MyApp.html. Of course the code versions in each side my be identical or you can get RPC errors.

Sincerely,

Joseph

[Deepak Singh]

The reason is that Gmail does not allow to be opened in Frame/IFrame. When i replace it with browser window, it works.

But i dont want my page to be refreshed, so any solution to avoid reloading the window in case of Gmail authentication ?

Thanks

Deepak

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Deepak Singh

[Thomas Broyer]

Window.open() ?

On Wednesday, March 28, 2012 6:15:47 PM UTC+2, Deepak Singh wrote:

The reason is that Gmail does not allow to be opened in Frame/IFrame. When i replace it with browser window, it works.

But i dont want my page to be refreshed, so any solution to avoid reloading the window in case of Gmail authentication ?

Thanks

Deepak

On Wed, Mar 28, 2012 at 7:04 AM, Joseph Lust wrote:

Deepak,

Can you run your app in DevMode but using the remote server option so that calls are being sent out to the actual Google APIs? I find it useful as you can step through and debug the production code in Eclipse, but the backend code is in production.

Just disable the built in server option, and in the GWT tab and URL field put the full remote path where you normally see MyApp.html. Of course the code versions in each side my be identical or you can get RPC errors.

Sincerely,

Joseph

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Deepak Singh

[Deepak Singh]

Hi Thomas,

I can not use Window.open() because after successful login, Gmail redirects user to the same window and there is no option to close the window automatically after login.

To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/mAAXGo4Y6F4J.

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--
Deepak Singh

[Thomas Broyer]

I don't know how Google/AppEngine (nothing to do with GMail) works exactly, but couldn't you make it redirect to some other page containing a script that talks to the window.opener and closes the window?

On Wednesday, March 28, 2012 10:26:08 PM UTC+2, Deepak Singh wrote:

Hi Thomas,

I can not use Window.open() because after successful login, Gmail redirects user to the same window and there is no option to close the window automatically after login.

On Wed, Mar 28, 2012 at 10:11 PM, Thomas Broyer  wrote:

Window.open() ?

On Wednesday, March 28, 2012 6:15:47 PM UTC+2, Deepak Singh wrote:

The reason is that Gmail does not allow to be opened in Frame/IFrame. When i replace it with browser window, it works.

But i dont want my page to be refreshed, so any solution to avoid reloading the window in case of Gmail authentication ?

Thanks

Deepak

On Wed, Mar 28, 2012 at 7:04 AM, Joseph Lust wrote:

Deepak,

Can you run your app in DevMode but using the remote server option so that calls are being sent out to the actual Google APIs? I find it useful as you can step through and debug the production code in Eclipse, but the backend code is in production.

Just disable the built in server option, and in the GWT tab and URL field put the full remote path where you normally see MyApp.html. Of course the code versions in each side my be identical or you can get RPC errors.

Sincerely,

Joseph

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Deepak Singh

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Deepak Singh