/**
* Method that performs introspection on an AUTH string, and returns data as a String->String
* hashmap.
*
* @param auth the authstring to query, as built by an auth impl.
* @return the data from the introspect, in a map.
* @throws IOException if anything goes wrong.
*/
private Map<String, String> introspectAuth(String accesstoken) throws IOException {
Map<String, String> results = new HashMap<String, String>();
// create a fb client using the supplied access token
FacebookClient client = new DefaultFacebookClient(accesstoken, Version.VERSION_2_5);
try {
// get back just the email, and name for the user, we'll get the id
// for free.
// fb only allows us to retrieve the things we asked for back in
// FacebookAuth when creating the token.
User userWithMetadata =
client.fetchObject("me", User.class, Parameter.with("fields", "email,name"));
results.put("valid", "true");
results.put("email", userWithMetadata.getEmail());
results.put("name", userWithMetadata.getName());
results.put("id", "facebook:" + userWithMetadata.getId());
} catch (FacebookOAuthException e) {
results.clear();
results.put("valid", "false");
}
return results;
}
public static void fbLogin() {
String token = params.get("token");
if (null != token && !token.isEmpty()) {
FacebookClient fb = new DefaultFacebookClient(token);
User fbUser = fb.fetchObject("me", User.class);
Logger.info("Facebook User:"******"Such a user does not exists. Create/Register one...");
// Register a new...
// Email uniqueness is controlled by Facebook I suppose, so no need to check on our side...
sesUser = new SUser(fbUser.getName(), fbUser.getEmail());
sesUser.fbId = fbUser.getId();
sesUser.save();
}
Auth.fbLogin(token, sesUser);
} else {
redirect("/");
}
}
/** @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
PrintWriter out = response.getWriter();
out.println("* Fetching single objects *");
try {
User user = fbClient.fetchObject("me", User.class);
Page page = fbClient.fetchObject("tradesbyjack", Page.class);
out.println("User name: " + user.getName());
out.println("User name: " + user.getId());
out.println("User name: " + user.getGender());
out.println("Page likes: " + page.getLikes());
} catch (FacebookOAuthException fbexp) {
out.println("Cannot find user info. " + fbexp.getErrorMessage());
}
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<br><h4>we are getting data</h4>");
String code = request.getParameter("code");
out.println("<br>code: " + code);
out.println("<br>");
try {
OAuthClientRequest requestOAuth =
OAuthClientRequest.tokenLocation("https://graph.facebook.com/oauth/access_token")
.setGrantType(GrantType.AUTHORIZATION_CODE)
.setClientId(apiKey)
.setClientSecret(secretKey)
.setRedirectURI(redirectUri)
.setCode(code)
.buildBodyMessage();
OAuthClient oAuthClient = new OAuthClient(new URLConnectionClient());
GitHubTokenResponse oAuthResponse =
oAuthClient.accessToken(requestOAuth, GitHubTokenResponse.class);
accessToken = oAuthResponse.getAccessToken();
expiresIn = oAuthResponse.getExpiresIn();
} catch (OAuthSystemException ae) {
ae.printStackTrace();
} catch (OAuthProblemException pe) {
pe.printStackTrace();
}
// out.println("<br>Access Token: " + accessToken);
// out.println("<br>Expires In: " + expiresIn);
try {
FacebookClient facebookClient = new DefaultFacebookClient(accessToken);
myFriends = facebookClient.fetchConnection("me/friends", User.class);
myFeeds = facebookClient.fetchConnection("me/home", Post.class);
for (User myFriend : myFriends.getData()) {
f.add(myFriend.getName());
out.println("<br>id: " + myFriend.getId() + " Name: " + myFriend.getName());
}
// out.println("<br>");
out.println("<br>f count: " + f.size());
} catch (FacebookException e) {
e.printStackTrace();
}
facebookDataBean fdb = new facebookDataBean();
fdb.setName("zishan ali khan");
HttpSession session = request.getSession();
if (session != null) {
session.setAttribute("myfdb", fdb);
session.setAttribute("yourFriends", f);
session.setAttribute("feeds", myFeeds);
RequestDispatcher view = request.getRequestDispatcher("result.jsp");
view.forward(request, response);
f.clear();
// out.println("<br>I am in");
} else {
// out.println("<br>Session Over");
}
}