void GetEmailRequestHandler(GraphRequestConnection connection, NSObject result, NSError error)
{
if (error != null)
{
completionSource.TrySetResult(new FacebookLoginResult {
LoginState = FacebookLoginState.Failed, ErrorString = error.LocalizedDescription
});
}
else
{
loginResult.FirstName = Profile.CurrentProfile?.FirstName;
loginResult.LastName = Profile.CurrentProfile?.LastName;
loginResult.ImageUrl = Profile.CurrentProfile?.ImageUrl(ProfilePictureMode.Square, new CGSize()).ToString();
var dict = result as NSDictionary;
var emailKey = new NSString(@"email");
if (dict != null && dict.ContainsKey(emailKey))
{
loginResult.Email = dict[emailKey]?.ToString();
}
loginResult.LoginState = FacebookLoginState.Success;
completionSource.TrySetResult(loginResult);
}
}
async System.Threading.Tasks.Task doAGraphReqest_Photo(string text, string publishToken, EventHandler <bool> done)
{
try
{
BasicFacebookProfileInfo facebookProfile = await this.GetBasicProfileInfo();
var parameters = new NSDictionary("picture", UIImage.FromFile("logo-512x512.png").AsPNG(), "caption", text);
string userID = facebookProfile.Id;
string graphPath = "/" + userID + "/photos";
var request = new Facebook.CoreKit.GraphRequest(graphPath, parameters, publishToken, null, "POST");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result1, error1) => {
if (error1 != null)
{
done(this, false);
return;
}
string id = (result1 as NSDictionary)["post_id"].ToString();
});
requestConnection.Start();
}
catch (Exception)
{
done(this, false);
}
}
private void FacebookLoggedIn(string userId)
{
var fields = "?fields=id,name,email,first_name,last_name,picture";
var request = new GraphRequest("/" + userId + fields, null, Facebook.CoreKit.AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) =>
{
if (error != null)
{
HideLoadingView();
//new UIAlertView("Error...", error.Description, null, "Ok", null).Show();
ShowMessageBox(Constants.STR_LOGIN_FAIL_TITLE, Constants.STR_LOGIN_FAIL_MSG);
return;
}
var userInfo = (NSDictionary)result;
var user = new User();
user.Firstname = userInfo["first_name"].ToString();
user.Lastname = userInfo["last_name"].ToString();
user.Email = userInfo["email"].ToString();
user.Password = userInfo["email"].ToString();
user.Type = Constants.TAG_VISIBLE_SPECIFIC;
var tmp1 = (NSDictionary)userInfo["picture"];
var tmp2 = (NSDictionary)tmp1["data"];
ParseLogin(user);
});
requestConnection.Start();
}
// Revoke all the permissions that you had granted, you will need to login again for ask the permissions again
// You can also revoke a single permission, for more info, visit this link:
// https://developers.facebook.com/docs/facebook-login/permissions/v2.3#revoking
void RevokeAllPermissions(string userId)
{
// Create the request for delete all the permissions
var request = new GraphRequest("/" + userId + "/permissions", null, AccessToken.CurrentAccessToken.TokenString, null, "DELETE");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) => {
// Handle if something went wrong
if (error != null)
{
ShowMessageBox("Error...", error.Description, "Ok", null, null);
return;
}
// If the revoking was successful, logout from FB
if ((result as NSDictionary) ["success"].ToString() == "1")
{
InvokeOnMainThread(() => {
ShowMessageBox("Successful", "All permissions have been revoked", "Ok", null, null);
var login = new LoginManager();
login.LogOut();
LoggedOut();
});
}
else
{
InvokeOnMainThread(() => ShowMessageBox("Ups...", "A problem has ocurred", "Ok", null, null));
}
});
requestConnection.Start();
}
/// <summary>
/// Get user data from facebook
/// </summary>
/// <param name="callback"></param>
public void GetUserData(IFacebookDataCallback callback)
{
this.FacebookDataCallback = callback;
var accessToken = AccessToken.CurrentAccessToken;
FacebookResult = new FacebookResult();
FacebookResult.Token = accessToken.TokenString;
NSMutableDictionary keyValues = new NSMutableDictionary();
keyValues.Add(new NSString("fields"), new NSString(FacebookService.Fields));
GraphRequest graphRequest = new GraphRequest("me", keyValues, AccessToken.CurrentAccessToken.TokenString, null, HttpMethod.Get);
GraphRequestConnection graphRequestConnection = new GraphRequestConnection();
graphRequestConnection.AddRequest(graphRequest, (connection, result, error) =>
{
if (error != null)
{
FacebookDataCallback.OnDataReceivedError(error.ToString());
return;
}
JsonConvert.PopulateObject(result.ToString(), FacebookResult);
FacebookDataCallback.OnUserDataReceived(FacebookResult);
});
}
public PhotoViewController()
: base(UITableViewStyle.Grouped, null, true)
{
// Add the image that will be publish
var imageView = new UIImageView (new CGRect (0, 0, View.Frame.Width, 220)) {
Image = UIImage.FromFile ("wolf.jpg")
};
// Add a textbox that where you will be able to add a comment to the photo
txtMessage = new EntryElement ("", "Say something nice!", "");
Root = new RootElement ("Post photo!") {
new Section () {
new UIViewElement ("", imageView, true) {
Flags = UIViewElement.CellFlags.DisableSelection | UIViewElement.CellFlags.Transparent,
},
txtMessage
}
};
// Create the request to post a photo into your wall
NavigationItem.RightBarButtonItem = new UIBarButtonItem ("Post", UIBarButtonItemStyle.Plain, ((sender, e) => {
// Disable the post button for prevent another untill the actual one finishes
(sender as UIBarButtonItem).Enabled = false;
// Add the photo and text that will be publish
var parameters = new NSDictionary ("picture", UIImage.FromFile ("wolf.jpg").AsPNG (), "caption", txtMessage.Value);
// Create the request
var request = new GraphRequest ("/" + Profile.CurrentProfile.UserID + "/photos", parameters, AccessToken.CurrentAccessToken.TokenString, null, "POST");
var requestConnection = new GraphRequestConnection ();
requestConnection.AddRequest (request, (connection, result, error) => {
// Enable the post button
(sender as UIBarButtonItem).Enabled = true;
// Handle if something went wrong
if (error != null) {
new UIAlertView ("Error...", error.Description, null, "Ok", null).Show ();
return;
}
// Do your magic if the request was successful
new UIAlertView ("Yay!!", "Your photo was published!", null, "Ok", null).Show ();
photoId = (result as NSDictionary) ["post_id"].ToString ();
// Add a button to allow to delete the photo posted
Root.Add (new Section () {
new StyledStringElement ("Delete Post", DeletePost) {
Alignment = UITextAlignment.Center,
TextColor = UIColor.Red
}
});
});
requestConnection.Start ();
}));
}
// Post and delete the "Hello!" from user wall
void PostHello()
{
// Verify if you have permissions to post into user wall,
// if not, ask to user if he/she wants to let your app post things for them
if (!AccessToken.CurrentAccessToken.HasGranted("publish_actions"))
{
AskPermissions("Post Hello", "Would you like to let this app to post a \"Hello\" for you?", new [] { "publish_actions" }, PostHello);
return;
}
// Once you have the permissions, you can publish or delete the post from your wall
GraphRequest request;
if (!isHelloPosted)
{
request = new GraphRequest("me/feed", new NSDictionary("message", "Hello!"), AccessToken.CurrentAccessToken.TokenString, null, "POST");
}
else
{
request = new GraphRequest(helloId, null, AccessToken.CurrentAccessToken.TokenString, null, "DELETE");
}
var requestConnection = new GraphRequestConnection();
// Handle the result of the request
requestConnection.AddRequest(request, (connection, result, error) => {
// Handle if something went wrong
if (error != null)
{
ShowMessageBox("Error...", error.Description, "Ok", null, null);
return;
}
// Post the Hello! to your wall
if (!isHelloPosted)
{
helloId = (result as NSDictionary) ["id"].ToString();
isHelloPosted = true;
InvokeOnMainThread(() => {
strPostHello.Caption = "Delete \"Hello\" from your wall";
Root.Reload(strPostHello, UITableViewRowAnimation.Left);
ShowMessageBox("Success!!", "Posted Hello in your wall, MsgId: " + helloId, "Ok", null, null);
});
}
else // Delete the Hello! from your wall
{
helloId = "";
isHelloPosted = false;
InvokeOnMainThread(() => {
strPostHello.Caption = "Post \"Hello\" on your wall";
Root.Reload(strPostHello, UITableViewRowAnimation.Left);
ShowMessageBox("Success", "Deleted Hello from your wall", "Ok", null, null);
});
}
});
requestConnection.Start();
}
void RequestUserData(Dictionary <string, object> fieldsDictionary)
{
string[] fields = new string[] { };
var extraParams = string.Empty;
if (fieldsDictionary != null && fieldsDictionary.ContainsKey("fields"))
{
fields = fieldsDictionary["fields"] as string[];
if (fields.Length > 0)
{
extraParams = $"?fields={string.Join(",", fields)}";
}
}
//email,first_name,gender,last_name,birthday
if (AccessToken.CurrentAccessToken != null)
{
Dictionary <string, object> userData = new Dictionary <string, object>();
var graphRequest = new GraphRequest($"/me{extraParams}", null, AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(graphRequest, (connection, result, error) =>
{
if (error == null)
{
NSData responseData = NSJsonSerialization.Serialize(result, NSJsonWritingOptions.PrettyPrinted, out NSError jsonError);
if (jsonError == null)
{
NSString responseString = NSString.FromData(responseData, NSStringEncoding.UTF8);
var fbResponse = new FBEventArgs <string>(responseString, FacebookActionStatus.Completed);
OnUserData?.Invoke(this, fbResponse);
_userDataTcs?.TrySetResult(new FacebookResponse <string>(fbResponse));
}
else
{
var fbResponse = new FBEventArgs <string>(null, FacebookActionStatus.Error, $" Facebook response parse failed - {jsonError.Code} - {jsonError.Description}");
OnUserData?.Invoke(this, fbResponse);
_userDataTcs?.TrySetResult(new FacebookResponse <string>(fbResponse));
}
}
else
{
var fbArgs = new FBEventArgs <string>(null, FacebookActionStatus.Error, $"Facebook User Data Request Failed - {error.Code} - {error.Description}");
OnUserData?.Invoke(this, fbArgs);
_userDataTcs?.TrySetResult(new FacebookResponse <string>(fbArgs));
}
});
requestConnection.Start();
}
else
{
var fbArgs = new FBEventArgs <string>(null, FacebookActionStatus.Canceled, "User cancelled facebook operation");
OnUserData?.Invoke(this, null);
_userDataTcs?.TrySetResult(new FacebookResponse <string>(fbArgs));
}
}
private void GetFacebookData()
{
GraphRequest gr = new GraphRequest("/me", null, "GET");
gr.Parameters.Add(NSObject.FromObject("fields"), NSObject.FromObject("id,name,email"));
GraphRequestConnection rc = new GraphRequestConnection();
rc.AddRequest(gr, DataRequestHandler);
rc.Start();
}
public async Task<List<string>> getFacebookFriends()
{
TaskCompletionSource<bool> tcs = new TaskCompletionSource<bool>();
List<string> friendsIDs = new List<string>();
var request = new GraphRequest("/"+App.StoredUserFacebookId+"/friends", null, App.StoredToken, null, "GET");
var requestConnection = new GraphRequestConnection();
var fbEvents = new List<FaceBookEvent>();
requestConnection.AddRequest(request, (connection, result, error) =>
{
if (error != null)
{
System.Diagnostics.Debug.WriteLine("Hnnn2");
new UIAlertView("Error...", error.Description, null, "Ok", null).Show();
return;
}
NSDictionary userInfo = (result as NSDictionary);
NSObject IDs;
var success = userInfo.TryGetValue(new NSString("data"), out IDs);
String s = IDs.ToString();
try
{
while (s.Contains(" = "))
{
int start = s.IndexOf(" = ");
int end = s.IndexOf(";");
//System.Diagnostics.Debug.WriteLine(start + ", " + end + ":" + s.Substring((start + 3), (end - start-3)) + ":");
friendsIDs.Add(s.Substring((start + 3), (end - start - 3)));
s = s.Substring(s.IndexOf("}")+1);
//System.Diagnostics.Debug.WriteLine(s);
}
}
catch (Exception e) {}
//System.Diagnostics.Debug.WriteLine("HEY");
if (error != null)
{
}
tcs.TrySetResult(true);
});
requestConnection.Start();
await tcs.Task;
return friendsIDs;
}
private async void ProcessFacebookLogin()
{
LoginManagerLoginResult result = await loginManager.LogInWithReadPermissionsAsync(readPermissions.ToArray(), this);
if (result.IsCancelled)
{
UserDialogs.Instance.Alert("User cancelled Facebook Login", "ThisRoof");
return;
}
if (result.GrantedPermissions != null && result.GrantedPermissions.Contains("email"))
{
string NAME = "name";
string ID = "id";
string EMAIL = "email";
string FIELDS = "fields";
string REQUEST_FIELDS = String.Join(",", new string[] {
NAME, ID, EMAIL
});
UserDialogs.Instance.ShowLoading();
var request = new GraphRequest("me", new NSDictionary(FIELDS, REQUEST_FIELDS), AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, graphResult, error) => {
UserDialogs.Instance.HideLoading();
if (error != null || graphResult == null)
{
// Error Handler
UserDialogs.Instance.Alert(String.Format("Facebook Login Error:{0}", error.Description), "ThisRoof");
}
else
{
string email = (graphResult as NSDictionary) ["email"].ToString();
FBUserInfo userInfo = new FBUserInfo()
{
UserEmail = email,
UserID = AccessToken.CurrentAccessToken.UserID,
UserToken = AccessToken.CurrentAccessToken.TokenString
};
ViewModelInstance.FacebookLoginCommand.Execute(userInfo);
// after get user info we logout again.
loginManager.LogOut();
}
});
requestConnection.Start();
}
else
{
UserDialogs.Instance.Alert("Email Permission is not allowed", "ThisRoof");
}
}
void GetLikesRequestHandler(GraphRequestConnection connection, NSObject result, NSError error)
{
if (error != null)
{
_completionSource.TrySetResult(new LoginResult {
LoginState = LoginState.Failed, ErrorString = error.LocalizedDescription
});
}
else
{
var likes = result.ValueForKey((NSString)"fan_count");
}
}
void RequestUserData(Dictionary <string, object> fieldsDictionary)
{
string[] fields = new string[] { };
var extraParams = string.Empty;
if (fieldsDictionary != null && fieldsDictionary.ContainsKey("fields"))
{
fields = fieldsDictionary["fields"] as string[];
if (fields.Length > 0)
{
extraParams = $"?fields={string.Join(",", fields)}";
}
}
//email,first_name,gender,last_name,birthday
if (AccessToken.CurrentAccessToken != null)
{
Dictionary <string, object> userData = new Dictionary <string, object>();
var graphRequest = new GraphRequest($"/me{extraParams}", null, AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(graphRequest, (connection, result, error) =>
{
if (error == null)
{
for (int i = 0; i < fields.Length; i++)
{
userData.Add(fields[i], $"{result.ValueForKey(new NSString(fields[i]))}");
}
userData.Add("user_id", AccessToken.CurrentAccessToken.UserID);
userData.Add("token", AccessToken.CurrentAccessToken.TokenString);
var fbArgs = new FBEventArgs <Dictionary <string, object> >(userData, FacebookActionStatus.Completed);
OnUserData(this, fbArgs);
_userDataTcs?.TrySetResult(new FacebookResponse <Dictionary <string, object> >(fbArgs));
}
else
{
var fbArgs = new FBEventArgs <Dictionary <string, object> >(null, FacebookActionStatus.Error, $"Facebook User Data Request Failed - {error.Code} - {error.Description}");
OnUserData(this, fbArgs);
_userDataTcs?.TrySetResult(new FacebookResponse <Dictionary <string, object> >(fbArgs));
}
});
requestConnection.Start();
}
else
{
var fbArgs = new FBEventArgs <Dictionary <string, object> >(null, FacebookActionStatus.Canceled, "User cancelled facebook operation");
OnUserData(this, null);
_userDataTcs?.TrySetResult(new FacebookResponse <Dictionary <string, object> >(fbArgs));
}
}
private void FacebookLoggedIn(string userId)
{
ShowLoadingView("Getting some user data...");
var fields = "?fields=id,name,email,first_name,last_name,picture";
var request = new GraphRequest("/" + userId + fields, null, Facebook.CoreKit.AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) => {
if (error != null)
{
HideLoadingView();
//new UIAlertView("Error...", error.Description, null, "Ok", null).Show();
new UIAlertView("Login Failed", "The social network login failed for your account", null, "Ok", null).Show();
return;
}
var userInfo = (NSDictionary)result;
AppSettings.LoginType = (int)LoginType.Facebook;
AppSettings.UserType = "";
AppSettings.UserFirstName = userInfo["first_name"].ToString();
AppSettings.UserLastName = userInfo["last_name"].ToString();
AppSettings.UserEmail = userInfo["email"].ToString();
var tmp1 = (NSDictionary)userInfo["picture"];
var tmp2 = (NSDictionary)tmp1["data"];
AppSettings.UserPhoto = tmp2["url"].ToString();
AppSettings.UserToken = GetMd5Hash(md5Hash, userInfo["email"].ToString());
////we got all the data we need at this point, FB login successful
UserTrackingReporter.TrackUser(Constant.CATEGORY_LOGIN, "Facebook login completed");
bool registerSuccessful = false;
Task runSync = Task.Factory.StartNew(async() => {
registerSuccessful = await RegisterUser();
}).Unwrap();
runSync.Wait();
if (!registerSuccessful)
{
GoToCreateAccountScreen();
return;
}
ShowHomeScreen();
});
requestConnection.Start();
}
public void GetUserInfo()
{
var request = new GraphRequest("/me", null, AccessToken.CurrentAccessToken.TokenString, string.Empty, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) =>
{
Settings.FacebookProfileId = result.ValueForKeyPath(new NSString("id")).ToString();
Settings.FacebookProfileName = result.ValueForKeyPath(new NSString("name")).ToString();
Xamarin.Forms.MessagingCenter.Send(new object(), "connected");
});
requestConnection.Start();
}
public ListDetailViewController(string listId, string listName, FacebookListType type) : base(UITableViewStyle.Grouped, null, true)
{
Root = new RootElement(listName);
// Ask for the members within the group
var request = new GraphRequest("/" + listId + "/members?fields=id,name", null, AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) => {
// Handle if something went wrong
if (error != null)
{
new UIAlertView("Error...", error.Description, null, "Ok", null).Show();
return;
}
// Get the name and the userId of all the memebers
NSArray membersData = (result as NSDictionary) ["data"] as NSArray;
var listSection = new List <Section> ();
// Add the name and the picture profile to the view
for (nuint i = 0; i < membersData.Count; i++)
{
// Get the info of one of the members
var memberData = membersData.GetItem <NSDictionary> (i);
var pictureView = new ProfilePictureView(new CGRect(48, 0, 220, 220))
{
ProfileId = memberData ["id"].ToString(),
TranslatesAutoresizingMaskIntoConstraints = false
};
listSection.Add(new Section(memberData ["name"].ToString())
{
new UIViewElement("", pictureView, true)
{
Flags = UIViewElement.CellFlags.DisableSelection | UIViewElement.CellFlags.Transparent
}
});
}
Root = new RootElement(listName)
{
listSection
};
});
requestConnection.Start();
}
public Task <bool> PostPhoto(ImageSource image)
{
var tcsPhoto = new TaskCompletionSource <bool>();
var token = AccessToken.CurrentAccessToken?.TokenString;
if (string.IsNullOrWhiteSpace(token))
{
tcsPhoto.TrySetResult(false);
}
else
{
bool hasRights;
if (!AccessToken.CurrentAccessToken.HasGranted("publish_actions"))
{
hasRights = RequestPublishPermissions(new[] { "publish_actions" }).Result;
}
else
{
hasRights = true;
}
if (hasRights)
{
var handler = image.GetHandler();
var nativeImage = handler.LoadImageAsync(image).Result;
var parameters = new NSDictionary("picture", nativeImage.AsPNG());
var request = new GraphRequest("/" + AccessToken.CurrentAccessToken.UserID + "/photos", parameters, AccessToken.CurrentAccessToken.TokenString, null, "POST");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) =>
{
if (error != null)
{
tcsPhoto.TrySetResult(false);
return;
}
tcsPhoto.TrySetResult(true);
});
requestConnection.Start();
}
else
{
tcsPhoto.TrySetResult(hasRights);
}
}
return(tcsPhoto.Task);
}
void AddUserInfoSection(string userId)
{
// Ask for the info that the user allowed to show
var fields = "?fields=id,name,email,birthday,about,hometown";
var request = new GraphRequest("/" + userId + fields, null, AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) => {
// Handle if something went wrong with the request
if (error != null)
{
new UIAlertView("Error...", error.Description, null, "Ok", null).Show();
return;
}
NSDictionary userInfo = (result as NSDictionary);
var userSection = new Section(userInfo ["name"].ToString());
// Show the info user that allowed to show
// If the user haven't assigned anything to his/her information,
// it will be null even if the user allowed to show it.
if (userInfo ["email"] != null)
{
userSection.Add(new StringElement("Email: " + userInfo ["email"].ToString()));
}
if (userInfo ["birthday"] != null)
{
userSection.Add(new StringElement("Birthday: " + userInfo ["birthday"].ToString()));
}
if (userInfo ["about"] != null)
{
userSection.Add(new StringElement("About: " + userInfo ["about"].ToString()));
}
if (userInfo ["hometown"] != null)
{
var hometownData = userInfo ["hometown"] as NSDictionary;
userSection.Add(new StringElement("Hometown: " + hometownData ["name"]));
}
Root.Add(userSection);
// Add the allowed actions that user have granted
AddActionsSection();
});
requestConnection.Start();
}
public void DataRequestHandler(GraphRequestConnection connection, NSObject result, NSError err)
{
try
{
string fbId = result.ValueForKey(new NSString("id")).ToString();
string fbToken = AccessToken.CurrentAccessToken.TokenString;
string fbEmail = result.ValueForKey(new NSString("email")).ToString();
_email = fbEmail;
// Create a new cancellation token for this request
_cts0 = new CancellationTokenSource();
AppController.LoginUser(_cts0, fbId, fbEmail, fbToken,
// Service call success
(data) =>
{
AppController.Settings.LastLoginUsernameUsed = _email;
AppController.Settings.AuthAccessToken = data.AuthAccessToken;
AppController.Settings.AuthExpirationDate = data.AuthExpirationDate.GetValueOrDefault().ToLocalTime();
((AppDelegate)UIApplication.SharedApplication.Delegate).RegisterToNotificationsHub();
var c = new ChatViewController();
c.Arguments = new UIBundle();
c.Arguments.PutString("Email", _email);
this.NavigationController.PushViewController(c, true);
},
// Service call error
(error) =>
{
UIToast.MakeText(error, UIToastLength.Long).Show();
},
// Service call finished
() =>
{
// Allow user to tap views
((MainViewController)this.MainViewController).UnblockUI();
});
}
catch (Exception ex)
{
((MainViewController)this.MainViewController).UnblockUI();
UIToast.MakeText("Error", UIToastLength.Long).Show();
}
}
public Task <bool> PostText(string message)
{
var tcs = new TaskCompletionSource <bool>();
var token = AccessToken.CurrentAccessToken?.TokenString;
if (string.IsNullOrWhiteSpace(token))
{
tcs.TrySetResult(false);
}
else
{
bool hasRights;
if (!AccessToken.CurrentAccessToken.HasGranted("publish_actions"))
{
hasRights = RequestPublishPermissions(new[] { "publish_actions" }).Result;
}
else
{
hasRights = true;
}
if (hasRights)
{
GraphRequest request = new GraphRequest("me/feed", new NSDictionary("message", message), AccessToken.CurrentAccessToken.TokenString, null, "POST");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) =>
{
if (error != null)
{
tcs.TrySetResult(false);
return;
}
tcs.TrySetResult(true);
});
requestConnection.Start();
}
else
{
tcs.TrySetResult(hasRights);
}
}
return(tcs.Task);
}
void GetEmailRequestHandler(GraphRequestConnection connection, NSObject result, NSError error)
{
if (error != null || _loginResult == null)
{
_completionSource?.TrySetResult(new LoginResult {
LoginState = LoginState.Failed, ErrorString = _loginResult == null ? "Invalid login sequence": error?.LocalizedDescription
});
}
else
{
var dict = result as NSDictionary;
if (dict != null)
{
var key = new NSString(@"email");
if (dict.ContainsKey(key))
{
_loginResult.Email = dict[key]?.ToString();
}
key = new NSString(@"first_name");
if (dict.ContainsKey(key))
{
_loginResult.FirstName = dict[key]?.ToString();
}
key = new NSString(@"last_name");
if (dict.ContainsKey(key))
{
_loginResult.LastName = dict[key]?.ToString();
}
key = new NSString(@"picture");
if (dict.ContainsKey(key))
{
_loginResult.ImageUrl = dict[key]?.ValueForKeyPath(new NSString("data"))?.ValueForKey(new NSString("url"))?.ToString();
}
}
_loginResult.LoginState = LoginState.Success;
_completionSource?.TrySetResult(_loginResult);
}
}
public ListDetailViewController (string listId, string listName, FacebookListType type) : base (UITableViewStyle.Grouped, null, true)
{
Root = new RootElement (listName);
// Ask for the members within the group
var request = new GraphRequest ("/" + listId + "/members?fields=id,name", null, AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection ();
requestConnection.AddRequest (request, (connection, result, error) => {
// Handle if something went wrong
if (error != null) {
new UIAlertView ("Error...", error.Description, null, "Ok", null).Show ();
return;
}
// Get the name and the userId of all the memebers
NSArray membersData = (result as NSDictionary) ["data"] as NSArray;
var listSection = new List<Section> ();
// Add the name and the picture profile to the view
for (nuint i = 0; i < membersData.Count; i++) {
// Get the info of one of the members
var memberData = membersData.GetItem<NSDictionary> (i);
var pictureView = new ProfilePictureView (new CGRect (48, 0, 220, 220)) {
ProfileId = memberData ["id"].ToString (),
TranslatesAutoresizingMaskIntoConstraints = false
};
listSection.Add (new Section (memberData ["name"].ToString ()) {
new UIViewElement ("", pictureView, true) {
Flags = UIViewElement.CellFlags.DisableSelection | UIViewElement.CellFlags.Transparent
}
});
}
Root = new RootElement (listName) {
listSection
};
});
requestConnection.Start ();
}
// Delete the photo posted from your wall
void DeletePost()
{
// Create the request to delete the post
var request = new GraphRequest("/" + photoId, null, AccessToken.CurrentAccessToken.TokenString, null, "DELETE");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) => {
// Handle if something went wrong
if (error != null)
{
new UIAlertView("Error...", error.Description, null, "Ok", null).Show();
return;
}
// Do your magin is the request was successful
new UIAlertView("Post Deleted", "Success", null, "OK", null).Show();
NavigationController.PopViewController(true);
});
requestConnection.Start();
}
public ListViewController(FacebookListType type) : base(UITableViewStyle.Grouped, null, true)
{
var kindListName = type == FacebookListType.Friends ? "friendlists?fields=id,name" : "groups?fields=id,name";
Root = new RootElement(type == FacebookListType.Friends ? "Friendlists" : "Managed Groups");
// Depends of what you want to see, list all your groups or all your friendslist that you have
var request = new GraphRequest("/" + Profile.CurrentProfile.UserID + "/" + kindListName, null, AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) => {
// Handle if something went wrong
if (error != null)
{
new UIAlertView("Error...", error.Description, null, "Ok", null).Show();
return;
}
// Get all the info of all the friends or group list that you belong
NSArray listsData = (result as NSDictionary) ["data"] as NSArray;
var listSection = new Section();
for (nuint i = 0; i < listsData.Count; i++)
{
var data = listsData.GetItem <NSDictionary> (i);
listSection.Add(new StringElement(data ["name"].ToString(), () => {
// Ask for all the FB user members that belong to the groups
// For security reasons, FB doesn't let you see who is in your friendlist anymore
if (type == FacebookListType.Groups)
{
NavigationController.PushViewController(new ListDetailViewController(data ["id"].ToString(), data ["name"].ToString(), type), true);
}
}));
}
Root.Add(listSection);
});
requestConnection.Start();
}
// public IGraphRequest NewRequest(IAccessToken token, string path, string parameters, string httpMethod = default(string), string version = default(string)) {
//// _token = (token as iOSAccessToken).ToNative ();
//// Path = path;
//// HttpMethod = httpMethod;
//// Version = version;
//
// // Assume parameters are for the "field" key
// // TODO: Let parameters be a Dictionary<string,string> bc there are more keys.
// Foundation.NSDictionary dict = new Foundation.NSDictionary("fields", parameters);
//
//// _request = new GraphRequest (Path, dict, _token.TokenString, HttpMethod, Version);
//
// Initialize (token, path, dict, httpMethod, version);
//
// return this;
// }
public Task <IGraphResponse> ExecuteAsync()
{
TaskCompletionSource <IGraphResponse> tcs = new TaskCompletionSource <IGraphResponse> ();
var handler = new GraphRequestHandler((connection, result, error) => {
// System.Diagnostics.Debug.WriteLine(result);
tcs.SetResult(new iOSGraphResponse((NSMutableDictionary)result));
});
_connection = new GraphRequestConnection();
_connection.AddRequest(_request, handler);
_connection.Failed += (sender, e) => {
System.Diagnostics.Debug.WriteLine("Request failed");
tcs.SetCanceled();
};
_connection.Start();
return(tcs.Task);
}
public Task <FacebookResponse> GetPosts()
{
_task = new TaskCompletionSource <FacebookResponse>();
//"fields", "picture"
var request = new GraphRequest("/admicleon/posts?fields=from,full_picture,permalink_url,message,story,created_time&locale=es", new NSDictionary(), "203591490120675|a909222218ad39a1de0767ea41a679b1", null, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) =>
{
try
{
var jsonData = NSJsonSerialization.Serialize(result, 0, out error);
if (error == null)
{
var jsonString = (string)NSString.FromData(jsonData, NSStringEncoding.UTF8);
var response = Newtonsoft.Json.JsonConvert.DeserializeObject <FacebookResponse>(jsonString);
_task.SetResult(response);
}
else
{
_task.SetResult(null);
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
_task.SetResult(null);
}
});
requestConnection.Start();
return(_task.Task);
}
private void GetUserInfo(List <string> fields, FacebookSession facebookSession, TaskCompletionSource <OperationResult <FacebookSession> > taskCompletionSource)
{
var builder = new StringBuilder();
fields.ForEach(m =>
{
builder.Append($"{m},");
});
var s = builder.ToString();
if (!String.IsNullOrWhiteSpace(s))
{
s = s.Substring(0, s.Length - 1);
}
var graphRequest = new GraphRequest($"/me?fields={s}", null, facebookSession.Token, null, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(graphRequest, (connection, result, error) =>
{
if (error != null)
{
taskCompletionSource.SetResult(
OperationResult <FacebookSession> .AsFailure(new ApplicationException(error.LocalizedDescription)));
return;
}
var r = result as NSDictionary;
var jsonData = r.ToDictionary();
facebookSession.Data = JObject.FromObject(jsonData);
taskCompletionSource.SetResult(OperationResult <FacebookSession> .AsSuccess(facebookSession));
});
requestConnection.Start();
}
private void GetDetailsRequestHandler(GraphRequestConnection connection, NSObject result, NSError error)
{
if (error != null)
{
_completionSource.TrySetResult(new LoginResult
(
LoginState.Failed,
null,
error.LocalizedDescription
));
}
else
{
var userProfile = new UserProfile(
Profile.CurrentProfile.FirstName,
Profile.CurrentProfile.LastName,
Profile.CurrentProfile.ImageUrl(ProfilePictureMode.Square, new CGSize(200, 200)).ToString()
);
_completionSource.TrySetResult(new LoginResult(LoginState.Success, userProfile));
}
}
public ListViewController (FacebookListType type) : base (UITableViewStyle.Grouped, null, true)
{
var kindListName = type == FacebookListType.Friends ? "friendlists?fields=id,name" : "groups?fields=id,name";
Root = new RootElement (type == FacebookListType.Friends ? "Friendlists" : "Managed Groups");
// Depends of what you want to see, list all your groups or all your friendslist that you have
var request = new GraphRequest ("/" + Profile.CurrentProfile.UserID + "/" + kindListName, null, AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection ();
requestConnection.AddRequest (request, (connection, result, error) => {
// Handle if something went wrong
if (error != null) {
new UIAlertView ("Error...", error.Description, null, "Ok", null).Show ();
return;
}
// Get all the info of all the friends or group list that you belong
NSArray listsData = (result as NSDictionary) ["data"] as NSArray;
var listSection = new Section ();
for (nuint i = 0; i < listsData.Count; i++) {
var data = listsData.GetItem <NSDictionary> (i);
listSection.Add (new StringElement (data ["name"].ToString (), () => {
// Ask for all the FB user members that belong to the groups
// For security reasons, FB doesn't let you see who is in your friendlist anymore
if (type == FacebookListType.Groups)
NavigationController.PushViewController (new ListDetailViewController (data ["id"].ToString (), data ["name"].ToString (), type), true);
}));
}
Root.Add (listSection);
});
requestConnection.Start ();
}
void AddUserInfoSection (string userId)
{
// Ask for the info that the user allowed to show
var fields = "?fields=id,name,email,birthday,about,hometown";
var request = new GraphRequest ("/" + userId + fields, null, AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection ();
requestConnection.AddRequest (request, (connection, result, error) => {
// Handle if something went wrong with the request
if (error != null) {
new UIAlertView ("Error...", error.Description, null, "Ok", null).Show ();
return;
}
NSDictionary userInfo = (result as NSDictionary);
var userSection = new Section (userInfo ["name"].ToString ());
// Show the info user that allowed to show
// If the user haven't assigned anything to his/her information,
// it will be null even if the user allowed to show it.
if (userInfo ["email"] != null)
userSection.Add (new StringElement ("Email: " + userInfo ["email"].ToString ()));
if (userInfo ["birthday"] != null)
userSection.Add (new StringElement ("Birthday: " + userInfo ["birthday"].ToString ()));
if (userInfo ["about"] != null)
userSection.Add (new StringElement ("About: " + userInfo ["about"].ToString ()));
if (userInfo ["hometown"] != null)
userSection.Add (new StringElement ("Hometown: " + userInfo ["hometown"].ToString ()));
Root.Add (userSection);
// Add the allowed actions that user have granted
AddActionsSection ();
});
requestConnection.Start ();
}
// Post a "Hello!" into user wall
void PostHello ()
{
if (isHelloPosted) {
InvokeOnMainThread (() => new UIAlertView ("Error", "Hello already posted on your wall", null, "Ok", null).Show ());
return;
}
// Verify if you have permissions to post into user wall,
// if not, ask to user if he/she wants to let your app post thing for them
if (!AccessToken.CurrentAccessToken.Permissions.Contains ("publish_actions")) {
var alertView = new UIAlertView ("Post Hello", "Would you like to let this app to post a \"Hello\" for you?", null, "Maybe later", new [] { "Ok" });
alertView.Clicked += (sender, e) => {
if (e.ButtonIndex == 1)
return;
// If they let you post thing, ask a new loggin with publish permissions
var login = new LoginManager ();
login.LogInWithPublishPermissions (new [] { "publish_actions" }, (result, error) => {
if (error != null) {
new UIAlertView ("Error...", error.Description, null, "Ok", null).Show ();
return;
}
PostHello ();
});
};
alertView.Show ();
} else {
// Once you have the permissions, you can publish into user wall
var request = new GraphRequest ("me/feed", new NSDictionary ("message", "Hello!"), AccessToken.CurrentAccessToken.TokenString, null, "POST");
var requestConnection = new GraphRequestConnection ();
// Handle the result of the request
requestConnection.AddRequest (request, (connection, result, error) => {
if (error != null) {
new UIAlertView ("Error...", error.Description, null, "Ok", null).Show ();
return;
}
helloId = (result as NSDictionary)["id"].ToString ();
new UIAlertView ("Success!!", "Posted Hello in your wall, MsgId: " + helloId, null, "Ok", null).Show ();
isHelloPosted = true;
});
requestConnection.Start ();
}
}
// Delete the last Xamarin.com shared
void DeleteSharedPost ()
{
if (!isXamarinShared) {
new UIAlertView ("Error", "Please Share \"Xamarin.com\" to your wall first", null, "Ok", null).Show();
return;
}
// Use GraphRequest to delete the last shared post
var request = new GraphRequest (sharedId, null, AccessToken.CurrentAccessToken.TokenString, null, "DELETE");
var requestConnection = new GraphRequestConnection ();
// Handle the result of the request
requestConnection.AddRequest (request, (connection, result, error) => {
if (error != null) {
new UIAlertView ("Error...", error.Description, null, "Ok", null).Show ();
return;
}
sharedId = "";
new UIAlertView ("Success!!", "Deleted your last share from your wall", null, "Ok", null).Show ();
isXamarinShared = false;
});
// Start all your request that you have added
requestConnection.Start ();
}
#endregion LogIn with Email
public void FacebookLoginProcess(LoginButtonCompletedEventArgs e)
{
if (e.Error != null)
{
Console.WriteLine(e.Error.ToString());
new UIAlertView("Facebook",
"We were not able to authenticate you with Facebook. Please login again.", null, "OK", null)
.Show();
}
else if (e.Result.IsCancelled)
{
Console.WriteLine("Result was cancelled");
new UIAlertView("Facebook", "You cancelled the Facebook login process. Please login again.", null,
"OK", null).Show();
}
else if (!e.Result.GrantedPermissions.ToString().Contains("email"))
{
// Check that we have email as a permission, otherwise show that we can't signup
Console.WriteLine("Email permission not found");
new UIAlertView("Facebook", "Email permission is required to sign in, Please login again.", null,
"OK", null).Show();
}
else
{
var meRequest = new GraphRequest("/me", new NSDictionary("fields", "first_name,last_name,name,email,picture"), "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(meRequest, (connection, meResult, meError) =>
{
var client = new WebClient();
if (meError != null)
{
Console.WriteLine(meError.ToString());
new UIAlertView("Facebook", "Unable to login to facebook.", null, "OK", null).Show();
return;
}
var user = meResult as NSDictionary;
var sc = new SocialLoginData();
sc.scFirstName = user.ValueForKey(new NSString("first_name")).Description;
sc.scLastName = user.ValueForKey(new NSString("last_name")).Description;
sc.scUserName = user.ValueForKey(new NSString("name")).Description;
sc.scSocialId = user.ValueForKey(new NSString("id")).Description;
sc.scEmail = user.ValueForKey(new NSString("email")).Description;
sc.scProfileImgUrl = ""; //user.ValueForKey(new NSString("picture")).Description;
sc.scSource = "facebook";
sc.scAccessUrl = "http://facebook.com/profile.php?id=" +
user.ValueForKey(new NSString("id")).Description;
sc.scSocialOauthToken = AccessToken.CurrentAccessToken.TokenString;
sc.scAccount = AccessToken.CurrentAccessToken.TokenString;
StartRegistration(sc);
});
requestConnection.Start();
}
}
public async void StartRegistration(SocialLoginData SocialData)
{
InpowerResult Result = null;
UserProfile userProfile = new UserProfile();
try
{
string isscEmail = "";
if (SocialData.scEmail != "" || SocialData.scEmail != null) { isscEmail = SocialData.scEmail; }else{isscEmail = SocialData.scFirstName + SocialData.scLastName + SocialData.scSocialId + "@InPower.com";}
Result = await new AccountService().Registration(new UserRegisterRequestViewModel
{
FirstName = SocialData.scFirstName,
LastName = SocialData.scLastName,
Email = isscEmail ,
Password = "******"
}, GlobalConstant.AccountUrls.RegisterServiceUrl);
var modelReporeg = JsonConvert.DeserializeObject<UserRegisterResponseViewModel>(Result.Response.ToString());
var ResultToken = await new AccountService().AccessToken(new TokenRequestViewModel
{
UserName = modelReporeg.Email,
password = modelReporeg.Password,
grant_type = "password"
});
if (Result.Message == "Detail Successfully Updated")
{
ContinuetoMainScreen(modelReporeg.UserId.ToString(), modelReporeg.Password, ResultToken.access_token, modelReporeg.Email, modelReporeg.AWSAccessKey,modelReporeg.AWSSecretKey);
}
else
{
var token = AccessToken.CurrentAccessToken != null;
if (ResultToken != null)
{
// Delete the "Hello!" post from user wall
void DeleteHelloPost ()
{
if (!isHelloPosted) {
new UIAlertView ("Error", "Please Post \"Hello\" to your wall first", null, "Ok", null).Show();
return;
}
// Use GraphRequest to delete the Hello! post
var request = new GraphRequest (helloId, null, AccessToken.CurrentAccessToken.TokenString, null, "DELETE");
var requestConnection = new GraphRequestConnection ();
// Handle the result of the request
requestConnection.AddRequest (request, (connection, result, error) => {
if (error != null) {
new UIAlertView ("Error...", error.Description, null, "Ok", null).Show ();
return;
}
helloId = "";
new UIAlertView ("Success", "Deleted Hello from your wall", null, "Ok", null).Show ();
isHelloPosted = false;
});
requestConnection.Start ();
}
private void LoginManagerRequestTokenHandler(LoginManagerLoginResult result, NSError error)
{
if (error != null)
{
//Handle error
}
var request = new GraphRequest("/me", null, AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, GraphRequestHandler);
requestConnection.Start();
}
async void getEvents(string id)
{
//var fields = "?fields=events,id,name,email,about,hometown,groups";
//var request = new GraphRequest("/me/events?fields=name,id,place,description&rsvp_status=attending", null, AccessToken.CurrentAccessToken.TokenString, null, "GET");
var request = new GraphRequest("/me/friends", null, AccessToken.CurrentAccessToken.TokenString, null, "GET");
var requestConnection = new GraphRequestConnection();
var fbEvents = new List<FaceBookEvent>();
requestConnection.AddRequest(request, (connection, result, error) =>
{
// Handle if something went wrong with the reques
if (error != null)
{
System.Diagnostics.Debug.WriteLine("Hnnn2");
new UIAlertView("Error...", error.Description, null, "Ok", null).Show();
return;
}
//fbEvents = JsonConvert.DeserializeObject<List<FaceBookEvent>>(result);
NSDictionary userInfo = (result as NSDictionary);
if (error != null)
{
}
});
requestConnection.Start();
await System.Threading.Tasks.Task.Delay(500);
}
// Post and delete the "Hello!" from user wall
void PostHello ()
{
// Verify if you have permissions to post into user wall,
// if not, ask to user if he/she wants to let your app post things for them
if (!AccessToken.CurrentAccessToken.HasGranted ("publish_actions")) {
AskPermissions ("Post Hello", "Would you like to let this app to post a \"Hello\" for you?", new [] { "publish_actions" }, PostHello);
return;
}
// Once you have the permissions, you can publish or delete the post from your wall
GraphRequest request;
if (!isHelloPosted)
request = new GraphRequest ("me/feed", new NSDictionary ("message", "Hello!"), AccessToken.CurrentAccessToken.TokenString, null, "POST");
else
request = new GraphRequest (helloId, null, AccessToken.CurrentAccessToken.TokenString, null, "DELETE");
var requestConnection = new GraphRequestConnection ();
// Handle the result of the request
requestConnection.AddRequest (request, (connection, result, error) => {
// Handle if something went wrong
if (error != null) {
ShowMessageBox ("Error...", error.Description, "Ok", null, null);
return;
}
// Post the Hello! to your wall
if (!isHelloPosted) {
helloId = (result as NSDictionary) ["id"].ToString ();
isHelloPosted = true;
InvokeOnMainThread (() => {
strPostHello.Caption = "Delete \"Hello\" from your wall";
Root.Reload (strPostHello, UITableViewRowAnimation.Left);
ShowMessageBox ("Success!!", "Posted Hello in your wall, MsgId: " + helloId, "Ok", null, null);
});
} else { // Delete the Hello! from your wall
helloId = "";
isHelloPosted = false;
InvokeOnMainThread (() => {
strPostHello.Caption = "Post \"Hello\" on your wall";
Root.Reload (strPostHello, UITableViewRowAnimation.Left);
ShowMessageBox ("Success", "Deleted Hello from your wall", "Ok", null, null);
});
}
});
requestConnection.Start ();
}
private void GraphRequestHandler(GraphRequestConnection connection, NSObject requestResult, NSError requestError)
{
NSDictionary userInfo = (requestResult as NSDictionary);
// Handle if something went wrong
if (requestError != null || userInfo == null)
{
//Handle error
}
//Handle graph request result
//For example:
var fad = new FacebookAccountData();
if (userInfo["id"] != null)
{
fad.SocialNetworkId = userInfo["id"].ToString();
}
if (userInfo["name"] != null)
{
fad.Name = userInfo["name"].ToString();
}
if (userInfo["first_name"] != null)
{
fad.FirstName = userInfo["first_name"].ToString();
}
if (userInfo["middle_name"] != null)
{
fad.MiddleName = userInfo["middle_name"].ToString();
}
if (userInfo["last_name"] != null)
{
fad.LastName = userInfo["last_name"].ToString();
}
if (userInfo["age_range"] != null)
{
fad.AgeRange = userInfo["age_range"].ToString();
}
if (userInfo["link"] != null)
{
fad.Link = userInfo["link"].ToString();
}
if (userInfo["gender"] != null)
{
fad.Gender = userInfo["gender"].ToString();
}
if (userInfo["locale"] != null)
{
fad.Locale = userInfo["locale"].ToString();
}
if (userInfo["timezone"] != null)
{
fad.Timezone = userInfo["timezone"].ToString();
}
if (userInfo["updated_time"] != null)
{
fad.UpdatedTime = userInfo["updated_time"].ToString();
}
if (userInfo["verified"] != null)
{
fad.Verified = userInfo["verified"].ToString();
}
if (userInfo["email"] != null)
{
fad.Email = userInfo["email"].ToString();
}
}
private void OnRequestHandler(GraphRequestConnection connection, NSObject result, NSError error)
{
if (error != null || result == null)
{
OnLoginError?.Invoke(new Exception(error.LocalizedDescription));
}
else
{
var id = string.Empty;
var first_name = string.Empty;
var email = string.Empty;
var last_name = string.Empty;
var url = string.Empty;
try
{
id = result.ValueForKey(new NSString("id"))?.ToString();
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
try
{
first_name = result.ValueForKey(new NSString("first_name"))?.ToString();
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
try
{
email = result.ValueForKey(new NSString("email"))?.ToString();
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
try
{
last_name = result.ValueForKey(new NSString("last_name"))?.ToString();
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
try
{
url = ((result.ValueForKey(new NSString("picture")) as NSDictionary).ValueForKey(new NSString("data")) as NSDictionary).ValueForKey(new NSString("url")).ToString();
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
//Grab the user and send the success event
User = new FacebookUser(id, AccessToken.CurrentAccessToken.TokenString, first_name, last_name, email, url);
OnLoginSuccess?.Invoke(User);
}
}
public PhotoViewController() : base(UITableViewStyle.Grouped, null, true)
{
// Add the image that will be publish
var imageView = new UIImageView(new CGRect(0, 0, View.Frame.Width, 220))
{
Image = UIImage.FromFile("wolf.jpg")
};
// Add a textbox that where you will be able to add a comment to the photo
txtMessage = new EntryElement("", "Say something nice!", "");
Root = new RootElement("Post photo!")
{
new Section()
{
new UIViewElement("", imageView, true)
{
Flags = UIViewElement.CellFlags.DisableSelection | UIViewElement.CellFlags.Transparent,
},
txtMessage
}
};
// Create the request to post a photo into your wall
NavigationItem.RightBarButtonItem = new UIBarButtonItem("Post", UIBarButtonItemStyle.Plain, ((sender, e) => {
// Disable the post button for prevent another untill the actual one finishes
(sender as UIBarButtonItem).Enabled = false;
// Add the photo and text that will be publish
var parameters = new NSDictionary("picture", UIImage.FromFile("wolf.jpg").AsPNG(), "caption", txtMessage.Value);
// Create the request
var request = new GraphRequest("/" + Profile.CurrentProfile.UserID + "/photos", parameters, AccessToken.CurrentAccessToken.TokenString, null, "POST");
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(request, (connection, result, error) => {
// Enable the post button
(sender as UIBarButtonItem).Enabled = true;
// Handle if something went wrong
if (error != null)
{
new UIAlertView("Error...", error.Description, null, "Ok", null).Show();
return;
}
// Do your magic if the request was successful
new UIAlertView("Yay!!", "Your photo was published!", null, "Ok", null).Show();
photoId = (result as NSDictionary) ["post_id"].ToString();
// Add a button to allow to delete the photo posted
Root.Add(new Section()
{
new StyledStringElement("Delete Post", DeletePost)
{
Alignment = UITextAlignment.Center,
TextColor = UIColor.Red
}
});
});
requestConnection.Start();
}));
}
protected override IEnumerable<Datum> Poll(CancellationToken cancellationToken)
{
List<Datum> data = new List<Datum>();
if (HasValidAccessToken)
{
string[] missingPermissions = GetRequiredPermissionNames().Where(p => !AccessToken.CurrentAccessToken.Permissions.Contains(p)).ToArray();
if (missingPermissions.Length > 0)
ObtainAccessToken(missingPermissions);
}
else
ObtainAccessToken(GetRequiredPermissionNames());
if (HasValidAccessToken)
{
ManualResetEvent startWait = new ManualResetEvent(false);
List<ManualResetEvent> responseWaits = new List<ManualResetEvent>();
Exception exception = null; // can't throw exception from within the UI thread -- it will crash the app. use this variable to check whether an exception did occur.
Xamarin.Forms.Device.BeginInvokeOnMainThread(() =>
{
try
{
GraphRequestConnection requestConnection = new GraphRequestConnection();
#region add requests to connection
foreach (Tuple<string, List<string>> edgeFieldQuery in GetEdgeFieldQueries())
{
NSDictionary parameters = null;
if (edgeFieldQuery.Item2.Count > 0)
parameters = new NSDictionary("fields", string.Concat(edgeFieldQuery.Item2.Select(field => field + ",")).Trim(','));
GraphRequest request = new GraphRequest(
"me" + (edgeFieldQuery.Item1 == null ? "" : "/" + edgeFieldQuery.Item1),
parameters,
AccessToken.CurrentAccessToken.TokenString,
null,
"GET");
ManualResetEvent responseWait = new ManualResetEvent(false);
requestConnection.AddRequest(request, (connection, result, error) =>
{
if (error == null)
{
FacebookDatum datum = new FacebookDatum(DateTimeOffset.UtcNow);
#region set datum properties
NSDictionary resultDictionary = result as NSDictionary;
bool valuesSet = false;
foreach (string resultKey in resultDictionary.Keys.Select(k => k.ToString()))
{
PropertyInfo property;
if (FacebookDatum.TryGetProperty(resultKey, out property))
{
object value = null;
if (property.PropertyType == typeof(string))
value = resultDictionary[resultKey].ToString();
else if (property.PropertyType == typeof(bool?))
{
int parsedBool;
if (int.TryParse(resultDictionary[resultKey].ToString(), out parsedBool))
value = parsedBool == 1 ? true : false;
}
else if (property.PropertyType == typeof(DateTimeOffset?))
{
DateTimeOffset parsedDateTimeOffset;
if (DateTimeOffset.TryParse(resultDictionary[resultKey].ToString(), out parsedDateTimeOffset))
value = parsedDateTimeOffset;
}
else if (property.PropertyType == typeof(List<string>))
{
List<string> values = new List<string>();
NSArray resultArray = resultDictionary[resultKey] as NSArray;
for (nuint i = 0; i < resultArray.Count; ++i)
values.Add(resultArray.GetItem<NSObject>(i).ToString());
value = values;
}
else
throw new SensusException("Unrecognized FacebookDatum property type: " + property.PropertyType.ToString());
if (value != null)
{
property.SetValue(datum, value);
valuesSet = true;
}
}
else
SensusServiceHelper.Get().Logger.Log("Unrecognized key in Facebook result dictionary: " + resultKey, LoggingLevel.Verbose, GetType());
}
#endregion
if (valuesSet)
data.Add(datum);
}
else
SensusServiceHelper.Get().Logger.Log("Error received while querying Facebook graph API: " + error.Description, LoggingLevel.Normal, GetType());
SensusServiceHelper.Get().Logger.Log("Response for \"" + request.GraphPath + "\" has been processed.", LoggingLevel.Verbose, GetType());
responseWait.Set();
});
responseWaits.Add(responseWait);
}
#endregion
if (responseWaits.Count == 0)
exception = new Exception("Request connection contained zero requests.");
else
{
SensusServiceHelper.Get().Logger.Log("Starting request connection with " + responseWaits.Count + " requests.", LoggingLevel.Normal, GetType());
requestConnection.Start();
}
startWait.Set();
}
catch (Exception ex)
{
exception = new Exception("Error starting request connection: " + ex.Message);
}
});
startWait.WaitOne();
// wait for all responses to be processed
foreach (ManualResetEvent responseWait in responseWaits)
responseWait.WaitOne();
// if any exception occurred when running query, throw it now
if (exception != null)
throw exception;
}
else
throw new Exception("Attempted to poll Facebook probe without a valid access token.");
return data;
}
void RequestData(Dictionary <string, object> pDictionary)
{
string path = $"{pDictionary["method"]}";
string version = $"{pDictionary["version"]}";
Dictionary <string, string> paramDict = pDictionary["parameters"] as Dictionary <string, string>;
FacebookHttpMethod? method = pDictionary["method"] as FacebookHttpMethod?;
var currentTcs = _requestTcs;
var onEvent = OnRequestData;
var httpMethod = "GET";
if (method != null)
{
switch (method)
{
case FacebookHttpMethod.Get:
httpMethod = "GET";
break;
case FacebookHttpMethod.Post:
httpMethod = "POST";
onEvent = OnPostData;
currentTcs = _postTcs;
break;
case FacebookHttpMethod.Delete:
httpMethod = "DELETE";
onEvent = OnDeleteData;
currentTcs = _deleteTcs;
break;
}
}
if (string.IsNullOrEmpty(path))
{
var fbResponse = new FBEventArgs <string>(null, FacebookActionStatus.Error, "Graph query path not specified");
onEvent?.Invoke(CrossFacebookClient.Current, fbResponse);
currentTcs?.TrySetResult(new FacebookResponse <string>(fbResponse));
return;
}
NSMutableDictionary parameters = null;
if (paramDict != null)
{
parameters = new NSMutableDictionary();
foreach (var p in paramDict)
{
var key = $"{p}";
parameters.Add(new NSString(key), new NSString($"{paramDict[key]}"));
}
}
var graphRequest = string.IsNullOrEmpty(version)?new GraphRequest(path, parameters, httpMethod): new GraphRequest(path, parameters, AccessToken.CurrentAccessToken.TokenString, version, httpMethod);
var requestConnection = new GraphRequestConnection();
requestConnection.AddRequest(graphRequest, (connection, result, error) =>
{
if (error == null)
{
var fbResponse = new FBEventArgs <string>(result.ToString(), FacebookActionStatus.Completed);
onEvent?.Invoke(CrossFacebookClient.Current, fbResponse);
currentTcs?.TrySetResult(new FacebookResponse <string>(fbResponse));
}
else
{
var fbResponse = new FBEventArgs <string>(null, FacebookActionStatus.Error, $" Facebook operation failed - {error.Code} - {error.Description}");
onEvent?.Invoke(CrossFacebookClient.Current, fbResponse);
currentTcs?.TrySetResult(new FacebookResponse <string>(fbResponse));
}
});
requestConnection.Start();
}
protected override IEnumerable <Datum> Poll(CancellationToken cancellationToken)
{
List <Datum> data = new List <Datum>();
if (HasValidAccessToken)
{
// prompt user for any missing permissions
string[] missingPermissions = GetRequiredPermissionNames().Where(p => !AccessToken.CurrentAccessToken.Permissions.Contains(p)).ToArray();
if (missingPermissions.Length > 0)
{
_loginManager.LogInWithReadPermissions(missingPermissions, _loginResultHandler);
return(data);
}
ManualResetEvent startWait = new ManualResetEvent(false);
List <ManualResetEvent> responseWaits = new List <ManualResetEvent>();
Xamarin.Forms.Device.BeginInvokeOnMainThread(() =>
{
try
{
GraphRequestConnection requestConnection = new GraphRequestConnection();
#region add requests to connection
foreach (Tuple <string, List <string> > edgeFieldQuery in GetEdgeFieldQueries())
{
NSDictionary parameters = null;
if (edgeFieldQuery.Item2.Count > 0)
{
parameters = new NSDictionary("fields", string.Concat(edgeFieldQuery.Item2.Select(field => field + ",")).Trim(','));
}
GraphRequest request = new GraphRequest(
"me" + (edgeFieldQuery.Item1 == null ? "" : "/" + edgeFieldQuery.Item1),
parameters,
AccessToken.CurrentAccessToken.TokenString,
null,
"GET");
ManualResetEvent responseWait = new ManualResetEvent(false);
requestConnection.AddRequest(request, (connection, result, error) =>
{
if (error == null)
{
FacebookDatum datum = new FacebookDatum(DateTimeOffset.UtcNow);
#region set datum properties
NSDictionary resultDictionary = result as NSDictionary;
bool valuesSet = false;
foreach (string resultKey in resultDictionary.Keys.Select(k => k.ToString()))
{
PropertyInfo property;
if (FacebookDatum.TryGetProperty(resultKey, out property))
{
object value = null;
if (property.PropertyType == typeof(string))
{
value = resultDictionary[resultKey].ToString();
}
else if (property.PropertyType == typeof(bool?))
{
int parsedBool;
if (int.TryParse(resultDictionary[resultKey].ToString(), out parsedBool))
{
value = parsedBool == 1 ? true : false;
}
}
else if (property.PropertyType == typeof(DateTimeOffset?))
{
DateTimeOffset parsedDateTimeOffset;
if (DateTimeOffset.TryParse(resultDictionary[resultKey].ToString(), out parsedDateTimeOffset))
{
value = parsedDateTimeOffset;
}
}
else if (property.PropertyType == typeof(List <string>))
{
List <string> values = new List <string>();
NSArray resultArray = resultDictionary[resultKey] as NSArray;
for (nuint i = 0; i < resultArray.Count; ++i)
{
values.Add(resultArray.GetItem <NSObject>(i).ToString());
}
value = values;
}
else
{
throw new SensusException("Unrecognized FacebookDatum property type: " + property.PropertyType.ToString());
}
if (value != null)
{
property.SetValue(datum, value);
valuesSet = true;
}
}
else
{
SensusServiceHelper.Get().Logger.Log("Unrecognized key in Facebook result dictionary: " + resultKey, LoggingLevel.Verbose, GetType());
}
}
#endregion
if (valuesSet)
{
data.Add(datum);
}
}
else
{
SensusServiceHelper.Get().Logger.Log("Error received while querying Facebook graph API: " + error.Description, LoggingLevel.Normal, GetType());
}
SensusServiceHelper.Get().Logger.Log("Response for \"" + request.GraphPath + "\" has been processed.", LoggingLevel.Verbose, GetType());
responseWait.Set();
});
responseWaits.Add(responseWait);
}
#endregion
if (responseWaits.Count == 0)
{
SensusServiceHelper.Get().Logger.Log("Request connection contained zero requests.", LoggingLevel.Normal, GetType());
}
else
{
SensusServiceHelper.Get().Logger.Log("Starting request connection with " + responseWaits.Count + " requests.", LoggingLevel.Normal, GetType());
requestConnection.Start();
}
startWait.Set();
}
catch (Exception ex)
{
SensusServiceHelper.Get().Logger.Log("Error starting request connection: " + ex.Message, LoggingLevel.Normal, GetType());
}
});
startWait.WaitOne();
// wait for all responses to be processed
foreach (ManualResetEvent responseWait in responseWaits)
{
responseWait.WaitOne();
}
}
else
{
SensusServiceHelper.Get().Logger.Log("Attempted to poll Facebook probe without a valid access token.", LoggingLevel.Normal, GetType());
}
return(data);
}
// Revoke all the permissions that you had granted, you will need to login again for ask the permissions again
// You can also revoke a single permission, for more info, visit this link:
// https://developers.facebook.com/docs/facebook-login/permissions/v2.3#revoking
void RevokeAllPermissions (string userId)
{
// Create the request for delete all the permissions
var request = new GraphRequest ("/" + userId + "/permissions", null, AccessToken.CurrentAccessToken.TokenString, null, "DELETE");
var requestConnection = new GraphRequestConnection ();
requestConnection.AddRequest (request, (connection, result, error) => {
// Handle if something went wrong
if (error != null) {
ShowMessageBox ("Error...", error.Description, "Ok", null, null);
return;
}
// If the revoking was successful, logout from FB
if ((result as NSDictionary) ["success"].ToString () == "1")
InvokeOnMainThread (() => {
ShowMessageBox ("Successful", "All permissions have been revoked", "Ok", null, null);
var login = new LoginManager ();
login.LogOut ();
LoggedOut ();
});
else
InvokeOnMainThread (() => ShowMessageBox ("Ups...", "A problem has ocurred", "Ok", null, null));
});
requestConnection.Start ();
}
// Delete the photo posted from your wall
void DeletePost()
{
// Create the request to delete the post
var request = new GraphRequest ("/" + photoId, null, AccessToken.CurrentAccessToken.TokenString, null, "DELETE");
var requestConnection = new GraphRequestConnection ();
requestConnection.AddRequest (request, (connection, result, error) => {
// Handle if something went wrong
if (error != null) {
new UIAlertView ("Error...", error.Description, null, "Ok", null).Show ();
return;
}
// Do your magin is the request was successful
new UIAlertView ("Post Deleted", "Success", null, "OK", null).Show ();
NavigationController.PopViewController (true);
});
requestConnection.Start ();
}
