Hi Stephen, I do this all of the time - using the gmail credentials to get a token cookie, adding it to my header so the request is authenticated. I go over how this is done in good detail on my blog http://javagwt.blogspot.com/2010/08/authenticating-android-to-app-engine.html
unfortunately, this blog posting is for android, so the credentials come from the phone, but the concept is the same. Hope this helps. Your code looks like it's trying to authenticate against localhost - that never works for me. Ben On Nov 30, 7:15 pm, Stephen <[email protected]> wrote: > I have a normal Java standalone app which is trying to communicate with > a GAE app. I make use of the HttpURLConnection class and all is jiffy. > But what I am having trouble doing is sending an http POST request > (with the URLConnection class) with an authentication token returned by > Google ClientLogin. I can't seem to be able to include the token in a > meaningful way. On the server-side, what I wish to do is identify the > user who is connecting from the stand-alone Java App. > > For my Client-side code, there a couple things I have tried: > > 1) Sending the token directly in the Authentication header > 2) Sending a cookie with the token as its value > > p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco; > color: #4d9072} p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px > Monaco; color: #3834ff} p.p3 {margin: 0.0px 0.0px 0.0px 0.0px; font: > 11.0px Monaco; color: #931a68} p.p4 {margin: 0.0px 0.0px 0.0px 0.0px; > font: 11.0px Monaco} p.p5 {margin: 0.0px 0.0px 0.0px 0.0px; font: > 11.0px Monaco; min-height: 15.0px} span.s1 {color: #000000} span.s2 > {color: #931a68} span.s3 {color: #0027cc} span.s4 {color: #4d9072} > span.s5 {color: #3834ff} span.s6 {text-decoration: underline} > //AUTHENTICATE WITH GOOGLE > > CalendarService client = new > CalendarService("https://www.google.com/accounts/ClientLogin";); > > try { > > client.setUserCredentials(userField.getText(), passField.getText()); > > } catch (AuthenticationException e1) { > > e1.printStackTrace(); > > } > > //STORE TOKEN LOCALLY > > String token; > > UserToken auth_token = (UserToken) > client.getAuthTokenFactory().getAuthToken(); > > token = auth_token.getValue(); > > [...] > > p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco; > color: #4d9072} p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px > Monaco; color: #3834ff} p.p3 {margin: 0.0px 0.0px 0.0px 0.0px; font: > 11.0px Monaco} p.p4 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px > Monaco; min-height: 15.0px} p.p5 {margin: 0.0px 0.0px 0.0px 0.0px; > font: 11.0px Monaco; color: #931a68} span.s1 {color: #000000} span.s2 > {color: #931a68} span.s3 {color: #3834ff} span.s4 {text-decoration: > underline} span.s5 {color: #0027cc} > > //CREATE HTTP POST REQUEST > > URL url = new URL("http://localhost:8888/playerConnect";); > > HttpURLConnection conn = (HttpURLConnection)url.openConnection(); > > conn.setRequestMethod("POST"); > > //conn.setRequestProperty("Cookie", "auth=" + token); > > conn.setRequestProperty("Cookie", cookie); > > conn.setRequestProperty("Authorization", token); > > //conn.setRequestProperty("Authorization", "Auth "+token); > > conn.setRequestProperty("username", userField.getText()); > > conn.setDoOutput(true); > > conn.connect(); > > //SEND DATA > > ObjectOutputStream out = new ObjectOutputStream(new > BufferedOutputStream(conn.getOutputStream())); > > out.writeObject(salvo); > > out.flush(); > > out.close(); > > InputStreamReader in = new InputStreamReader(new > BufferedInputStream(conn.getInputStream())); > > char[] string = new char[100]; > > in.read(string); > > if(conn.getResponseCode() != 200) { > > System.out.println("Succeeded"); > > } > > else{ > > System.out.println("Response Code: " + conn.getResponseCode()); > > } > > System.out.println(string); > > On the server-side code, I try to get the user... > > p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco} span.s1 > {color: #931a68} span.s2 {text-decoration: underline} > > public class PlayerServlet extends HttpServlet{ > > public void doPost(HttpServletRequest req, HttpServletResponse resp) > > throws IOException{ > > p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco} p.p2 > {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco; min-height: > 15.0px} span.s1 {text-decoration: underline} span.s2 {color: #3834ff} > span.s3 {color: #0027cc} span.s4 {color: #931a68} > > Cookie[] cookies = req.getCookies(); > > String cookieVal = getCookieValue(cookies,"token","null"); > > System.out.println("CookieVal: " + cookieVal); > > CalendarService client = new > CalendarService("https://www.google.com/accounts/ClientLogin";); > > client.setUserToken(cookieVal); > > if (req.getUserPrincipal() != null) { > > System.out.println("username: " + req.getUserPrincipal().getName()); > > } > > else{ > > System.out.println("Not signed in"); > > } > > UserService userService = UserServiceFactory.getUserService(); > > User user = userService.getCurrentUser(); > > System.out.println("From user" + user); > > [...] > > And in web.xml, I have a security-constraint set up: > > p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco; > color: #4d9192} p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px > Monaco} p.p3 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco; > min-height: 15.0px} span.s1 {color: #009193} span.s2 {color: #000000} > span.s3 {color: #4d9192} > > <servlet> > > <servlet-name>playerServlet</servlet-name> > > <servlet-class>battleship.PlayerServlet</servlet-class> > > </servlet> > > <servlet-mapping> > > <servlet-name>playerServlet</servlet-name> > > <url-pattern>/playerConnect</url-pattern> > > </servlet-mapping> > > p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco; > color: #4d9192} span.s1 {color: #000000} span.s2 {color: #009193} > span.s3 {text-decoration: underline} span.Apple-tab-span > {white-space:pre} > > <security-constraint> > > <web-resource-collection> > > <url-pattern>/playerConnect</url-pattern> > > </web-resource-collection> > > <auth-constraint> > > <role-name>*</role-name> > > </auth-constraint> > > </security-constraint> > > I get a couple of different behaviors, depending on my web.xml file. If > I don't specify any security-constraints in web.xml, the server outputs > that user is null. > > When I do specify the security constraint in web.xml, the client gets a > HTTP 200 response code, and the last print statement (of string) > outputs some HTML text. The server prints no output; it's as if there > is no connection from the server's point of view. > > I've tried all sorts of things with my HttpURLConnection stuff > client-side, and nothing seems to work. Again, all I want to do is have > a user authenticate with google, and connect to my GAE app with their > login information. Thanks in advance for any helps. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
