Example usage for com.google.api.client.googleapis.auth.oauth2 GoogleAuthorizationCodeFlow GoogleAuthorizationCodeFlow

Introduction

In this page you can find the example usage for com.google.api.client.googleapis.auth.oauth2 GoogleAuthorizationCodeFlow GoogleAuthorizationCodeFlow.

Prototype

public GoogleAuthorizationCodeFlow(HttpTransport transport, JsonFactory jsonFactory, String clientId,
        String clientSecret, Collection<String> scopes) 

Source Link

Usage

From source file:com.otway.picasasync.webclient.GoogleOAuth.java

License:Apache License

public PicasawebClient authenticatePicasa(Settings settings, boolean allowInteractive, SyncState state)
        throws IOException, GeneralSecurityException {
    final HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport();

    log.info("Preparing to authenticate via OAuth...");
    Credential cred = null;//  w w  w. j a v a 2s  .  c  o m

    String refreshToken = settings.getRefreshToken();
    if (refreshToken != null) {
        // We have a refresh token - so get some refreshed credentials
        cred = getRefreshedCredentials(refreshToken);
    }

    if (cred == null && allowInteractive) {

        // Either there was no valid refresh token, or the credentials could not
        // be created (they may have been revoked). So run the auth flow

        log.info("No credentials - beginning OAuth flow...");

        state.setStatus("Requesting Google Authentication...");

        GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow(httpTransport, jsonFactory, clientId,
                clientSecret, Collections.singleton(scope));

        String authorizationUrl = flow.newAuthorizationUrl().setRedirectUri(redirectUrl)
                .setAccessType("offline").setApprovalPrompt("force").build();

        try {
            OAuthGUI authGUI = new OAuthGUI();

            // Display the interactive GUI for the user to log in via the browser
            String code = authGUI.initAndShowGUI(authorizationUrl, state);

            log.info("Token received from UI. Requesting credentials...");

            // Now we have the code from the interactive login, set up the
            // credentials request and call it.
            GoogleTokenResponse response = flow.newTokenRequest(code).setRedirectUri(redirectUrl).execute();

            // Retrieve the credential from the request response
            cred = new GoogleCredential.Builder().setTransport(httpTransport).setJsonFactory(jsonFactory)
                    .setClientSecrets(clientId, clientSecret).build().setFromTokenResponse(response);

            state.setStatus("Google Authentication succeeded.");

            log.info("Credentials received - storing refresh token...");

            // Squirrel this away for next time
            settings.setRefreshToken(cred.getRefreshToken());
            settings.saveSettings();
        } catch (Exception ex) {
            log.error("Failed to initialise interactive OAuth GUI", ex);
        }
    }

    if (cred != null) {

        log.info("Building PicasaWeb Client...");

        // Build a web client using the credentials we created
        return new PicasawebClient(cred);
    }

    return null;
}

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From source file:net.wasdev.gameon.auth.google.GoogleAuth.java

License:Apache License

protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    JsonFactory jsonFactory = new JacksonFactory();
    HttpTransport httpTransport = new NetHttpTransport();

    GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow(httpTransport, jsonFactory, key, secret,
            Arrays.asList("https://www.googleapis.com/auth/userinfo.profile",
                    "https://www.googleapis.com/auth/userinfo.email"));

    try {/*from w w w  .j a  va 2 s.c o m*/
        // google will tell the users browser to go to this address once
        // they are done authing.
        StringBuffer callbackURL = request.getRequestURL();
        int index = callbackURL.lastIndexOf("/");
        callbackURL.replace(index, callbackURL.length(), "").append("/GoogleCallback");
        request.getSession().setAttribute("google", flow);

        String authorizationUrl = flow.newAuthorizationUrl().setRedirectUri(callbackURL.toString()).build();
        // send the user to google to be authenticated.
        response.sendRedirect(authorizationUrl);

    } catch (Exception e) {
        throw new ServletException(e);
    }

}

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From source file:org.gameontext.auth.google.GoogleAuth.java

License:Apache License

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    JsonFactory jsonFactory = new JacksonFactory();
    HttpTransport httpTransport = new NetHttpTransport();

    GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow(httpTransport, jsonFactory, key, secret,
            Arrays.asList("https://www.googleapis.com/auth/userinfo.profile",
                    "https://www.googleapis.com/auth/userinfo.email"));

    try {/*from   w  ww .j a v a  2s. c om*/
        // google will tell the users browser to go to this address once
        // they are done authing.
        String callbackURL = authURL + "/GoogleCallback";
        request.getSession().setAttribute("google", flow);

        String authorizationUrl = flow.newAuthorizationUrl().setRedirectUri(callbackURL).build();
        Log.log(Level.FINEST, this, "Google Auth with callback: {0}", authorizationUrl);

        // send the user to google to be authenticated.
        response.sendRedirect(authorizationUrl);

    } catch (Exception e) {
        throw new ServletException(e);
    }

}

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