This is first time I trying to integrate facebook in my application.
(I also want to integrate twitter also).
Can anyone tell me steps to integrate facebook with BB application.
I have app ID and Secrete ID.I dont know how to go further.
Please share code snippet or link or anything related to facebook/twitter integration.
Download jar file from this link
String NEXT_URL = "http://www.facebook.com/connect/login_success.html";
String APPLICATION_ID = "xxxxxxxxxxxx";
String APPLICATION_SECRET = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
String[] PERMISSIONS = Facebook.Permissions.ALL_PERMISSIONS;
ApplicationSettings as = new ApplicationSettings(NEXT_URL, APPLICATION_ID, APPLICATION_SECRET, PERMISSIONS);
Facebook fb = Facebook.getInstance(as);
try{
User user = fb.getCurrentUser();
String result = user.publishStatus("Hello world!");
if ((result != null) && !result.trim().equals("")) {
Dialog.inform("Publish Success.");
} else {
Dialog.inform("Publish Failed.");
}
}catch(FacebookException fe){
fe.printStackTrace();
}
Related
Identity server is implemented and working well. Google login is working and is returning several claims including email.
Facebook login is working, and my app is live and requests email permissions when a new user logs in.
The problem is that I can't get the email back from the oauth endpoint and I can't seem to find the access_token to manually request user information. All I have is a "code" returned from the facebook login endpoint.
Here's the IdentityServer setup.
var fb = new FacebookAuthenticationOptions
{
AuthenticationType = "Facebook",
SignInAsAuthenticationType = signInAsType,
AppId = ConfigurationManager.AppSettings["Facebook:AppId"],
AppSecret = ConfigurationManager.AppSettings["Facebook:AppSecret"]
};
fb.Scope.Add("email");
app.UseFacebookAuthentication(fb);
Then of course I've customized the AuthenticateLocalAsync method, but the claims I'm receiving only include name. No email claim.
Digging through the source code for identity server, I realized that there are some claims things happening to transform facebook claims, so I extended that class to debug into it and see if it was stripping out any claims, which it's not.
I also watched the http calls with fiddler, and I only see the following (apologies as code formatting doesn't work very good on urls. I tried to format the querystring params one their own lines but it didn't take)
(facebook.com)
/dialog/oauth
?response_type=code
&client_id=xxx
&redirect_uri=https%3A%2F%2Fidentity.[site].com%2Fid%2Fsignin-facebook
&scope=email
&state=xxx
(facebook.com)
/login.php
?skip_api_login=1
&api_key=xxx
&signed_next=1
&next=https%3A%2F%2Fwww.facebook.com%2Fv2.7%2Fdialog%2Foauth%3Fredirect_uri%3Dhttps%253A%252F%252Fidentity.[site].com%252Fid%252Fsignin-facebook%26state%3Dxxx%26scope%3Demail%26response_type%3Dcode%26client_id%3Dxxx%26ret%3Dlogin%26logger_id%3Dxxx&cancel_url=https%3A%2F%2Fidentity.[site].com%2Fid%2Fsignin-facebook%3Ferror%3Daccess_denied%26error_code%3D200%26error_description%3DPermissions%2Berror%26error_reason%3Duser_denied%26state%3Dxxx%23_%3D_
&display=page
&locale=en_US
&logger_id=xxx
(facebook.com)
POST /cookie/consent/?pv=1&dpr=1 HTTP/1.1
(facebook.com)
/login.php
?login_attempt=1
&next=https%3A%2F%2Fwww.facebook.com%2Fv2.7%2Fdialog%2Foauth%3Fredirect_uri%3Dhttps%253A%252F%252Fidentity.[site].com%252Fid%252Fsignin-facebook%26state%3Dxxx%26scope%3Demail%26response_type%3Dcode%26client_id%3Dxxx%26ret%3Dlogin%26logger_id%3Dxxx
&lwv=100
(facebook.com)
/v2.7/dialog/oauth
?redirect_uri=https%3A%2F%2Fidentity.[site].com%2Fid%2Fsignin-facebook
&state=xxx
&scope=email
&response_type=code
&client_id=xxx
&ret=login
&logger_id=xxx
&hash=xxx
(identity server)
/id/signin-facebook
?code=xxx
&state=xxx
I saw the code parameter on that last call and thought that maybe I could use the code there to get the access_token from the facebook API https://developers.facebook.com/docs/facebook-login/manually-build-a-login-flow
However when I tried that I get a message from the API telling me the code has already been used.
I also tried to change the UserInformationEndpoint to the FacebookAuthenticationOptions to force it to ask for the email by appending ?fields=email to the end of the default endpoint location, but that causes identity server to spit out the error "There was an error logging into the external provider. The error message is: access_denied".
I might be able to fix this all if I can change the middleware to send the request with response_type=id_token but I can't figure out how to do that or how to extract that access token when it gets returned in the first place to be able to use the Facebook C# sdk.
So I guess any help or direction at all would be awesome. I've spent countless hours researching and trying to solve the problem. All I need to do is get the email address of the logged-in user via IdentityServer3. Doesn't sound so hard and yet I'm stuck.
I finally figured this out. The answer has something to do with Mitra's comments although neither of those answers quite seemed to fit the bill, so I'm putting another one here. First, you need to request the access_token, not code (authorization code) from Facebook's Authentication endpoint. To do that, set it up like this
var fb = new FacebookAuthenticationOptions
{
AuthenticationType = "Facebook",
SignInAsAuthenticationType = signInAsType,
AppId = ConfigurationManager.AppSettings["Facebook:AppId"],
AppSecret = ConfigurationManager.AppSettings["Facebook:AppSecret"],
Provider = new FacebookAuthenticationProvider()
{
OnAuthenticated = (context) =>
{
context.Identity.AddClaim(new System.Security.Claims.Claim("urn:facebook:access_token", context.AccessToken, ClaimValueTypes.String, "Facebook"));
return Task.FromResult(0);
}
}
};
fb.Scope.Add("email");
app.UseFacebookAuthentication(fb);
Then, you need to catch the response once it's logged in. I'm using the following file from the IdentityServer3 Samples Repository, which overrides (read, provides functionality) for the methods necessary to log a user in from external sites. From this response, I'm using the C# Facebook SDK with the newly returned access_token claim in the ExternalAuthenticationContext to request the fields I need and add them to the list of claims. Then I can use that information to create/log in the user.
public override async Task AuthenticateExternalAsync(ExternalAuthenticationContext ctx)
{
var externalUser = ctx.ExternalIdentity;
var claimsList = ctx.ExternalIdentity.Claims.ToList();
if (externalUser.Provider == "Facebook")
{
var extraClaims = GetAdditionalFacebookClaims(externalUser.Claims.First(claim => claim.Type == "urn:facebook:access_token"));
claimsList.Add(new Claim("email", extraClaims.First(k => k.Key == "email").Value.ToString()));
claimsList.Add(new Claim("given_name", extraClaims.First(k => k.Key == "first_name").Value.ToString()));
claimsList.Add(new Claim("family_name", extraClaims.First(k => k.Key == "last_name").Value.ToString()));
}
if (externalUser == null)
{
throw new ArgumentNullException("externalUser");
}
var user = await userManager.FindAsync(new Microsoft.AspNet.Identity.UserLoginInfo(externalUser.Provider, externalUser.ProviderId));
if (user == null)
{
ctx.AuthenticateResult = await ProcessNewExternalAccountAsync(externalUser.Provider, externalUser.ProviderId, claimsList);
}
else
{
ctx.AuthenticateResult = await ProcessExistingExternalAccountAsync(user.Id, externalUser.Provider, externalUser.ProviderId, claimsList);
}
}
And that's it! If you have any suggestions for simplifying this process, please let me know. I was going to modify this code to do perform the call to the API from FacebookAuthenticationOptions, but the Events property no longer exists apparently.
Edit: the GetAdditionalFacebookClaims method is simply a method that creates a new FacebookClient given the access token that was pulled out and queries the Facebook API for the other user claims you need. For example, my method looks like this:
protected static JsonObject GetAdditionalFacebookClaims(Claim accessToken)
{
var fb = new FacebookClient(accessToken.Value);
return fb.Get("me", new {fields = new[] {"email", "first_name", "last_name"}}) as JsonObject;
}
I am using Xamarin.Auth For Authenticate user. I want to Authenticate Facebook User..Please check i have defined scope in code true or not.
My code for Authenticate given Below:
var auth = new OAuth2Authenticator (clientId: App.Instance.OAuthSettings.ClientId,
scope:"publish_stream,user_about_me,read_stream,email",
authorizeUrl: new Uri (App.Instance.OAuthSettings.AuthorizeUrl),
redirectUrl: new Uri (App.Instance.OAuthSettings.RedirectUrl));
auth.Completed += (sender, eventArgs) =>
{
if (eventArgs.IsAuthenticated)
{
App.Instance.SuccessfulLoginAction.Invoke();
// Use eventArgs.Account to do wonderful things
App.Instance.SaveToken(eventArgs.Account.Properties["access_token"]);
}
else
{
}
};
Please Help me Solve this Issue. i have attached image . please tell me what i missing.Thanks in Advance.
Facebook error Page
I am trying to create a new term set in SharePoint 2013 using a custom WCF web service deployed within SharePoint 2013 server. I have written below code to create the term set.
SPSecurity.RunWithElevatedPrivileges(delegate()
{
using (Impersonator imp = new Impersonator("Username", "Domain", "Password"))
{
using (SPSite site = new SPSite("http://server:8002/sites/site/"))
{
site.AllowUnsafeUpdates = true;
TaxonomySession session = new TaxonomySession(site);
TermStore termStore = session.TermStores["Managed Metadata Service"];
var termStoreAdmin = termStore.TermStoreAdministrators.Where(obj => obj.PrincipalName.Contains("domain\\username")).FirstOrDefault();
if (termStoreAdmin == null)
termStore.AddTermStoreAdministrator("domain\\username");
Group group = termStore.GetGroup(new Guid(groupGuid));
if (group != null && !string.IsNullOrEmpty(termSetName))
{
TermSet termset = group.TermSets.FirstOrDefault(obj => obj.Name.Equals(termSetName));
if (termset == null)
{
termset = group.CreateTermSet(termSetName);
termSetGuid = termset.Id.ToString();
}
SetupNavTermSet(termset, session, site.OpenWeb());
}
termStore.CommitAll();
}
}
});
I am calling this method from silverlight code using soap message. While calling this code I am getting exception while executing group.CreateTermSet(termSetName); line.
The error is:
Error Message : Value cannot be null.
Source : Microsoft.SharePoint
Error Details : at Microsoft.SharePoint.Administration.Claims.SPClaimProviderManager.GetUserIdentifierEncodedClaim(IIdentity identity)
at Microsoft.SharePoint.Taxonomy.Internal.CommonUtilities.GetCurrentUserName()
at Microsoft.SharePoint.Taxonomy.TaxonomySession.get_CurrentUserName()
at Microsoft.SharePoint.Taxonomy.Group.CreateTermSet(String name, Guid newTermSetId, Int32 lcid)
at Microsoft.SharePoint.Taxonomy.Group.CreateTermSet(String name)
at SplitVisionMetadataManagement.CustomManageMetaDataWCFService.<>c__DisplayClassc.<CreateTaxonomyTermSet>b__8()
Has anybody got this issue and a solution?
I also encountered the same issue and figured out that the Microsoft.SharePoint.Taxonomy.Internal.CommonUtilities.GetCurrentUserName() method uses the HttpContext.Current.User security principal for arriving at the user name.
I am using similar code in a windows form application and hence the HttpContext was empty. I made a workaround by setting the context and user manually as below.
if (HttpContext.Current == null)
{
HttpRequest request = new HttpRequest("", SiteURL, "");
HttpContext.Current = new HttpContext(request, new HttpResponse(TextWriter.Null));
HttpContext.Current.User = System.Threading.Thread.CurrentPrincipal;
}
SPSecurity.RunWithElevatedPrivileges(delegate()
{
using (SPSite site = new SPSite(SiteURL))
{
using (SPWeb web = site.OpenWeb())
{
if (HttpContext.Current.Items["HttpHandlerSPWeb"] == null)
HttpContext.Current.Items["HttpHandlerSPWeb"] = web;
// Your SharePoint Term Creation code
}
}
});
In your case it seems like you are using claims based authentication and hence some issue with the claims provider in returning the name. You HTTP context would be the context under which the WCF is running. You may need to investigate further in those angle.
The above knowledge should help you to understand it further.
I'm looking for a way to authenticate a user (given a username and password) via the Microsoft CRM 4.0 Web Services API. Ideally, I'd like to filter down a list of projects based on which ones the logged in user has access to. i may be able to figure out the second part but I can't find a way to authenticate the user. The way all of the cals are currently made in the web service is via:
MyWebServices.CrmService svc = new MyWebServices.CrmService();
MyWebServices.CrmAuthenticationToken token = new MyWebServices.CrmAuthenticationToken();
token.OrganizationName = "MyCRM";
token.AuthenticationType = 0;
svc.CrmAuthenticationTokenValue = token;
svc.PreAuthenticate = true;
svc.Credentials = System.Net.CredentialCache.DefaultCredentials;
svc.Credentials = new NetworkCredential("hj", "mypass", "mydomain");
Then calls can be made via the service. I guess I could potentially try to authenticate to CRM via the user's username/password but it feels wrong somehow.
If you are in an on-premise environment, you should be able to use the following code to get a valid CRM service that can be used to retrieve your projects.
public static Microsoft.Crm.SdkTypeProxy.CrmService GetCrmService(string crmServerUrl, string organizationName, System.Net.NetworkCredential networkCredential)
{
// Setup the Authentication Token
CrmAuthenticationToken crmAuthenticationToken = new CrmAuthenticationToken
{
OrganizationName = organizationName,
AuthenticationType = 0
};
var crmServiceUriBuilder = new UriBuilder(crmServerUrl) { Path = "//MSCRMServices//2007//CrmService.asmx" };
// Instantiate a CrmService
var crmService = new Microsoft.Crm.SdkTypeProxy.CrmService
{
Url = crmServiceUriBuilder.ToString(),
UseDefaultCredentials = false,
Credentials = networkCredential,
CrmAuthenticationTokenValue = crmAuthenticationToken
};
return crmService;
}
i'm attempting to provide a facility on my site that allows a user to create a facebook event for their booking.
http://developers.facebook.com/docs/reference/api/event/
now im doing the correct process:
1) first getting authorisation from the user
https://graph.facebook.com/oauth/authorize?client_id=APP_ID&redirect_uri=http://urlimredirectingto.comtype=web_server
2) requesting for an access token with the "code" that is returned in step 1
https://graph.facebook.com/oauth/access_token
3) using the access_token to create the event ...
string facebookCreateUri = string.Format("https://graph.facebook.com/{0}/events", loggedInMember.FacebookUID);
var formData = new HttpUrlEncodedForm()
{
{"access_token", accessToken},
{"owner", loggedInMember.FacebookUID},
{"description", "nice event that should be on the owners wall"},
{"name", "event on the users wall"},
{"start_time", "1272718027"},
{"end_time", "1272718027"},
{"location", "rochester"},
{"privacy","OPEN"}
};
HttpContent content = HttpContent.Create(formData);
HttpClient client = new HttpClient();
var response = client.Post(facebookCreateUri, "application/x-www-form-urlencoded", content);
but the event is posted on my app's wall, not the user's wall. It shouldn't have anything to do with the authentication/access_token elements because i use the same process to post on the user's wall. (http://developers.facebook.com/docs/reference/api/status/) and that works just fine.
I came back with a solution, after a week of working at many features with Facebook SDK, it finally works!
protected void onPostEvent(object sender, EventArgs e)
{
if (CanvasAuthorizer.Authorize())
{
var fb = new FacebookWebClient(CanvasAuthorizer.FacebookWebRequest);
dynamic parameters = new ExpandoObject();
parameters.description = txtEvDett.Text;
parameters.name = txtEvName.Text;
parameters.start_time = DateTime.Now.ToString("yyyyMMdd");
parameters.end_time = DateTime.Now.AddDays(1).ToString("yyyyMMdd");
parameters.access_token = CanvasAuthorizer.FacebookWebRequest.AccessToken;
dynamic eventDet = fb.Post("me/events", parameters);
litEvent.Text = String.Format("You have created the event with ID: {0}", eventDet.id);
lnkEvent.Visible = true;
lnkEvent.NavigateUrl = String.Format("http://www.facebook.com/event.php?eid={0}", eventDet.id);
}
}
For events, you have to request the create_event permission.
You should use /me/events to post on your events.
I user the C# SDK for Facebook from Codeplex - last version available for dld (aug 2011 - v5.2.1).
Good luck!
I don;t see in your request for Authorization any permission.. base permissions are not enough to do the postings.
i used:
https://www.facebook.com/dialog/permissions.request?app_id=MY_APP_ID&next=MY_APP_URL&display=page&response_type=code&canvas=1&perms=publish_stream,user_about_me,email
This is in the context of a canvas app. where MY_APP_URL is the url from facebook of the app:
http://apps.facebook.com/MY_APP_NAME_OR_ID
See extended permissions for events and check event's page in documentation
[EDIT] - I came back, sorry, now i did a test, and indeed, it works for me, but only of i post on my app's wall; even if i provided the 'user_events' permission i get this error:
The remote server returned an error: (403) Forbidden when posting on a user's wall.
This being said, i also subscribe to this question.