with Facebook C# sdk I read signed_request and have following details
if (Request.Params["signed_request"] != null)
{
dynamic signedRequest = fb.ParseSignedRequest(ConfigHelper.FacebookAppSecret,
Request.Params["signed_request"]);
Session["signedRequest"] = signedRequest.ToString();
if (signedRequest.page != null)
{
requestFromFanPage = true;
var lPid = signedRequest.page.id != null ? (string) signedRequest.page.id : "";
Session["lPid"] = lPid.ToString();
var lLiked = signedRequest.page.liked ?? "";
Session["lLiked"] = lLiked;
userLiked = lLiked;
}
var userid = signedRequest.user_id ?? "";
Session["lUserId"] = userid;
}
and I get following result without Facebook id :(
{"algorithm":"HMAC-SHA256","issued_at":1370416053,"page":{"id":"490007204401534","liked":true,"admin":false},"user":{"country":"au","locale":"en_US","age":{"min":21}}}
I need facebookuserid , Is there any way that I can get it with out getting permission?
Related
I am trying to get user hometown and location using Facebook graph API for the logged-in user
Public permissions to fetch location and hometown is granted by the user.
Graph API version v2.8
/me?fields=name,picture,location,hometown
You need to ask for permissions: user_hometown and user_location. The hometown/location is not included in the public permissions.
You can also check the scope of your access token here
Here is how you can get the complete user profile using FB token:
I am assuming you have given permission before getting token from graph api explore which is:
https://developers.facebook.com/tools/explorer/
public Profile GetProfile(string facebookID)
{
var url = "?fields=first_name,last_name,name,age_range,birthday, education, gender, hometown, locale, location, third_party_id, timezone, email";
dynamic result = _facebookClient.Get(facebookID + url);
var profile = new Profile();
if (result != null)
{
string resultStringify = result.ToString();
var resultBlock = JObject.Parse(resultStringify);
//if (result.ToString().Contains("first_name")) {
// profile.First_Name = resultBlock["first_name"].ToString();
//}
profile.First_Name = resultStringify.ExtractIfValueIsAvailable("first_name", resultBlock);
//if (result.ToString().Contains("last_name")) {
// profile.Last_Name = resultBlock["last_name"].ToString();
//}
profile.Last_Name = resultStringify.ExtractIfValueIsAvailable("last_name", resultBlock);
//if (result.ToString().Contains("name")) {
// profile.Name = resultBlock["name"].ToString();
//}
profile.Name = resultStringify.ExtractIfValueIsAvailable("name", resultBlock);
if (result.ToString().Contains("age_range"))
{
if (result.age_range.min != null) profile.Age_Range_Min = result.age_range.min;
if (result.age_range.max != null) profile.Age_Range_Max = result.age_range.max;
}
//if (result.ToString().Contains("birthday")) {
// profile.Birthday = DateTime.ParseExact(result.birthday, "MM/dd/yyyy", CultureInfo.InvariantCulture);
//}
profile.Birthday = resultStringify.ExtractIfDateTime("birthday", resultBlock);
//if (result.ToString().Contains("gender")) {
// profile.Gender = resultBlock["gender"].ToString();
//}
profile.Gender = resultStringify.ExtractIfValueIsAvailable("gender", resultBlock);
//if (result.ToString().Contains("hometown")) {
// profile.Hometown = resultBlock["hometown"]["name"].ToString();
//}
profile.Hometown = resultStringify.ExtractIfNameValueIsAvailable("hometown", resultBlock);
//if (result.ToString().Contains("locale")) {
// profile.Locale = resultBlock["locale"].ToString();
//}
profile.Locale = resultStringify.ExtractIfValueIsAvailable("locale", resultBlock);
//if (result.ToString().Contains("location")) {
// profile.Location = resultBlock["location"]["name"].ToString();
//}
profile.Location = resultStringify.ExtractIfNameValueIsAvailable("location", resultBlock);
//if (result.ToString().Contains("third_party_id")) {
// profile.Third_Party_ID = resultBlock["third_party_id"].ToString();
//}
profile.Third_Party_ID = resultStringify.ExtractIfValueIsAvailable("third_party_id", resultBlock);
profile.Timezone = resultStringify.ExtractIfValueIsAvailable("timezone", resultBlock);
profile.EMail = resultStringify.ExtractIfValueIsAvailable("email", resultBlock);
}
return profile;
}
public static string ExtractIfValueIsAvailable(this string result, string fieldName, dynamic resultBlock) => result.Contains(fieldName) ? resultBlock[fieldName].ToString() : string.Empty;
Hope it helps.
I have been using facebook login for one of my asp.net core projects. However, it stopped working for Facebook login suddenly. I am getting HTTP 500 error.
The issue is, even in the debug more, asp.net core is not mentioning any error. It is just same 500 error code. Nothing else.
When I tried to set breakpoint in the first line of public async Task<IActionResult> ExternalLoginCallback(string returnUrl = null) function, I realized that it is not even hitting that and failing even before that.
I am not sure how to debug this further. Am I missing anything here? Or is there any change from FB in the login side?
The return URL being hit is by Facebook is:
https://localhost:44300/signin-facebook?code=AQBxGGw7ZCoa9xtXc3CCsVGRD9TJLL428bZ_eJpUu4CtVu3K4UrfOZuYYdwFBXzGZ6GOGXpOi2Nme_jfbewB84otVZhKZfs4i7Dhi9Y3E_rloU9ouLeIvuOsm29jr7IDCtTj_HM7rKuKjj3zmc4yz5i_fniZ9ZhMfXtSus5KyKa4EFkZTsmKrz2ngMlGQalUAob_52GJNhvSIXDlmiNSrZLJV3m7Zbkf9eXETQkqhu2L1kgXPvWkMzVP8EN00GwRCYB3xT1kQMOimDANRKhziZjoVS5QZFUJTP0Faj47tE1xNfmAzb30iuwcaRORCOTMipUrnRvOO4nGRo8JuUNdPJaO&state=CfDJ8EHIO3qHMHFClr5BAt4EC1Wj7LyAs5Pg1XOqKo4uFiJM2Jr1rNyooxLIu2fbXr6Z3X5_kqbF_7WwFfvF3L3H4xgyooo-3Y9BV8Zh1S5wXlLJDAyCT5_LwkPJ1j8Zrwx4umQJp6NOl76GwRXpi1_BHlWGRxnh_naTL35iqeGovOa8oEDC0jOQ4trRe7YG3fV_ptjWk4yOnvJnsI81O-6wfyhdc3jm-LTP7ZO7-duf_lPZXZ8mL42XyLXDTIyOJ__S2yLYdvwItdDVntsM8Hwq94goXdU-RaH7ZkDA8iAzeCl3Ke0tWAdYBKy9vooJIXmE9Q#_=_
Based on this article, it should have state_token too in the URL. But that seems to be missing here. How can I figure out here what is the actual error?
I am using asp.net core RC2 release.
My callback function is:
public async Task<IActionResult> ExternalLoginCallback(string returnUrl = null)
{
var info = await _signInManager.GetExternalLoginInfoAsync();
if (info == null)
{
return RedirectToAction(nameof(Login));
}
// Sign in the user with this external login provider if the user already has a login.
var result = await _signInManager.ExternalLoginSignInAsync(info.LoginProvider, info.ProviderKey, isPersistent: false);
if (result.Succeeded)
{
_logger.LogInformation(5, "User logged in with {Name} provider.", info.LoginProvider);
return RedirectToLocal(returnUrl);
}
if (result.RequiresTwoFactor)
{
return RedirectToAction(nameof(SendCode), new { ReturnUrl = returnUrl });
}
if (result.IsLockedOut)
{
return View("Lockout");
}
else
{
// If the user does not have an account, then ask the user to create an account.
ViewData["ReturnUrl"] = returnUrl;
ViewData["LoginProvider"] = info.LoginProvider;
var email = info.ExternalPrincipal.FindFirstValue(ClaimTypes.Email);
if (email == null)
{
return View("Error");
}
/* Determine user from external login info */
var name = info.ExternalPrincipal.FindFirstValue(ClaimTypes.Name);
string firstName;
string lastName = "";
if (!string.IsNullOrWhiteSpace(name))
{
firstName = name.Split(' ').Length > 1? name.Split(new[] { ' ' }, 2)[0] : name;
lastName = name.Split(' ').Length > 1 ? name.Split(new[] { ' ' }, 2)[1] : "";
}
else
firstName = email.Split('#')[0];
var user = await _userManager.FindByEmailAsync(email);
if (user == null)
{
/* No user with same email ID. So, create a new user.*/
var newUser = new ApplicationUser
{
UserName = email,
Email = email,
FirstName = firstName,
LastName = lastName,
PasswordLastModifiedTime = DateTime.UtcNow,
UserSignUpDate = DateTime.UtcNow
};
var userCreationResult = await _userManager.CreateAsync(newUser);
if (userCreationResult.Succeeded)
{
userCreationResult = await _userManager.AddLoginAsync(newUser, info);
if (userCreationResult.Succeeded)
{
// Add user claims TODO:// Test if the claims are added successfully.
await _userManager.AddClaimAsync(newUser, new Claim("FirstName", newUser.FirstName));
await _userManager.AddClaimAsync(newUser, new Claim("LastName", newUser.LastName));
// Set user email to confirmed. This is more of work around
var code = await _userManager.GenerateEmailConfirmationTokenAsync(newUser);
userCreationResult = await _userManager.ConfirmEmailAsync(newUser, code);
if (userCreationResult.Succeeded)
{
//Create Subscription for user
var planService = new PlanServices();
var plan = planService.Find((int)SubscriptionType.Basic);
await _subscriptionService.CreateSubscription(newUser, plan, null);
await _signInManager.SignInAsync(newUser, isPersistent: false);
_logger.LogInformation(6, "User created an account using {Name} provider.",
info.LoginProvider);
await _emailSender.SendWelcomeEmailAsync(newUser.Email, newUser.FirstName);
return RedirectToLocal(returnUrl);
}
}
}
}
else
{
/* A user with email ID exists. Associate the account with that.*/
var loginAddResult = await _userManager.AddLoginAsync(user, info);
if (loginAddResult.Succeeded)
{
await _signInManager.SignInAsync(user, isPersistent: false);
return RedirectToLocal(returnUrl);
}
}
return View("ExternalLoginConfirmation", new ExternalLoginConfirmationViewModel { Email = email, FirstName = firstName, LastName = lastName});
}
}
And ConfigureServices method is:
public void ConfigureServices(IServiceCollection services)
{
// Add framework services.
services.AddApplicationInsightsTelemetry(Configuration);
services.AddScoped<ApplicationDbContext>();
services.AddIdentity<ApplicationUser, IdentityRole>(o =>
{
o.Password.RequireDigit = false;
o.Password.RequireLowercase = false;
o.Password.RequireUppercase = false;
o.Password.RequireNonLetterOrDigit = false;
o.Password.RequiredLength = 8;
})
.AddEntityFrameworkStores<ApplicationDbContext>()
.AddDefaultTokenProviders();
services.AddCaching();
services.AddSession();
services.AddMvc();
// Add application services.
services.AddTransient<IEmailSender, AuthMessageSender>();
services.AddTransient<ISmsSender, AuthMessageSender>();
services.AddTransient<ISubscriptionService, SubscriptionService>();
services.Configure<AuthMessageSenderOptions>(Configuration);
services.Configure<RecaptchaOptions>(Configuration);
__serviceProvider = services.BuildServiceProvider();
}
The thing is, it worked well for a long time and has stopped working now. Also, it is not even hitting ExternalLoginCallback, so I am not sure where to head for debugging it further.
I am having issue in confirming new user email. the Confirm email link works for first 20 minutes , but after 50 minutes the link expires. I have set the token expiration time to 24 hours. Please help me in resolving this issue. I am stuck on it for last 2 days:(.My code is as follows:
I am setting the token lifetime in Create() method in ApplicationUserManager as following:
var dataProtectionProvider = options.DataProtectionProvider;
if (dataProtectionProvider != null)
{
userManager.UserTokenProvider = new DataProtectorTokenProvider<ApplicationUser>(dataProtectionProvider.Create("ASP.NET Identity"))
{
TokenLifespan = _settings.ConfirmationAndResetTokenExpirationTimeSpan
};
}
And then In AccountsController, the Create method for new user is geiven below. The SendEmailAsync method consist of email subject, email body, generated password and the callback uri.
[Authorize(Roles = Roles.Bam.Name.Admin)]
[HttpPost]
[Route(Routes.Accounts.Template.Create, Name = Routes.Accounts.Name.Create)]
public async Task<IHttpActionResult> Create(CreateUserBindingModel createUserBindingModel)
{
IHttpActionResult result;
var memberNameExists = UserManager.Users.Any(x => x.MemberName.ToLower() == createUserBindingModel.MemberName.ToLower());
if (!memberNameExists)
{
var applicationUser = new ApplicationUser
{
UserName = createUserBindingModel.Email,
Email = createUserBindingModel.Email,
FirstName = createUserBindingModel.FirstName,
LastName = createUserBindingModel.LastName,
Company = createUserBindingModel.Company,
Location = createUserBindingModel.Location,
PhoneNumber = createUserBindingModel.PhoneNumber,
MemberName = createUserBindingModel.MemberName,
LastLoginDate = SqlDateTime.MinValue.Value,
CreateDate = DateTime.Now,
CreatedBy = User.Identity.GetUserId(),
UpdateDate = DateTime.Now,
UpdatedBy = User.Identity.GetUserId(),
TwoFactorEnabled = createUserBindingModel.TwoFactorEnabled,
SecurityResetRequired = true,
PasswordExpirationDate = DateTime.Now.AddDays(Convert.ToDouble(ConfigurationManager.AppSettings["PasswordExpirationDays"]))
};
if (!string.IsNullOrEmpty(createUserBindingModel.AvatarBase64))
{
var avatarBytes = Convert.FromBase64String(createUserBindingModel.AvatarBase64);
var resizedAvatarBytes = ImageResizer.ResizeImage(avatarBytes, _avatarWidth, _avatarHeight);
applicationUser.UserAvatar = new ApplicationUserAvatar
{
Avatar = resizedAvatarBytes
};
}
var generatedPassword = PasswordGenerator.GenerateStrongPassword(10, 10);
var identityResult = await UserManager.CreateAsync(applicationUser, generatedPassword);
if (identityResult.Succeeded)
{
await UserManager.AddToRolesAsync(applicationUser.Id, createUserBindingModel.Roles.ToArray());
var token = await UserManager.GenerateEmailConfirmationTokenAsync(applicationUser.Id);
var callbackUri = string.Format("{0}?userId={1}&token={2}", createUserBindingModel.EmailConfirmationCallbackUri, applicationUser.Id, HttpUtility.UrlEncode(token));
await UserManager.SendEmailAsync(applicationUser.Id, Email.Confirmation.Subject, string.Format(Email.Confirmation.Body, string.Format("{0} {1}", applicationUser.FirstName, applicationUser.LastName), callbackUri, generatedPassword, _settings.AccessTokenExpirationTimeSpan.TotalHours));
var userUrl = new Uri(Url.Link(Routes.Accounts.Name.Get, new { id = applicationUser.Id }));
var roles = await UserManager.GetRolesAsync(applicationUser.Id);
var contract = _accountsMapper.ToContract(applicationUser, roles);
result = Created(userUrl, contract);
}
else
{
result = GetErrorResult(identityResult);
}
}
else
{
ModelState.AddModelError(string.Empty, "Member Name already exists!");
result = BadRequest(ModelState);
}
return result;
}
Once the email is generated the UI has following JS angular code which gets executed and the provide the userid and token to service.
Angular JS code:
angular.module('confirmEmailModule').factory('confirmEmailFactory', function ($http) {
var factory = {};
factory.confirmEmail = function(userId, token) {
var encodedToken = encodeURIComponent(token);
var uri = '/identity/api/accounts/confirmemail?userId=' + userId + '&token=' + token;
return $http.post(uri);
}
return factory;
});
and the Service is :
[AllowAnonymous]
[HttpPost]
[Route(Routes.Accounts.Template.ConfirmEmail, Name = Routes.Accounts.Name.ConfirmEmail)]
public async Task<IHttpActionResult> ConfirmEmail([FromUri] string userId, [FromUri] string token)
{
//var decodedToken = HttpUtility.UrlDecode(token);
var identityResult = await UserManager.ConfirmEmailAsync(userId, token);
var result = identityResult.Succeeded ? StatusCode(HttpStatusCode.NoContent) : GetErrorResult(identityResult);
return result;
}
Please advice.
I found the solution to this issue. I am posting it if somebody faced the same issue. In my case the services and web API were on different servers. Different machine keys caused this issue. So I generated the machine key for my Web application and posted the same machine key in web.config file of Identity service. After that it worked. For more information on generating machine key, following link is helpful.
http://gunaatita.com/Blog/How-to-Generate-Machine-Key-using-IIS/1058
This is what worked for me. Hope it helps out;
public async Task<IActionResult> ConfirmEmail(string userId, string token)
{
if (userId == null || token == null)
{
return RedirectToAction("employees", "home");
}
var user = await userManager.FindByIdAsync(userId);
if (user == null)
{
ViewBag.ErrorMessage = $"The User ID {userId} is invalid";
return View("NotFound");
}
var result = await userManager.ConfirmEmailAsync(user, Uri.EscapeDataString(token));
if (result != null)
{
user.EmailConfirmed = true;
await userManager.UpdateAsync(user);
return View();
}
}
I am using https://graph.facebook.com/v2.4/page_id/posts?fields=id to get all post ids from a Facebook page, but I am running into an infinite loop issue with pagination due to paging.next property always returning a url. It looks like the last page points to the first page. How would I know I have reached the end of results.
Here is a code example:
public static Dictionary<string,string> GetPagePostIds(string accessToken, string pageId)
{
Dictionary<string, string> postIds = new Dictionary<string, string>();
StringBuilder sb = new StringBuilder(graphAPIURL);
sb.Append("/").Append(pageId).Append("/posts/?access_token=").Append(accessToken);
sb.Append("&fields=id");
string url = sb.ToString();
int pages = 0;
int rows = 0;
while (url != null)
{
System.Net.WebRequest req = System.Net.WebRequest.Create(url);
System.Net.WebResponse response = req.GetResponse();
string json = null;
using (System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream()))
{
json = sr.ReadToEnd();
Console.WriteLine(json);
}
if (json != null)
{
pages++;
Dictionary<string, dynamic> data = (Dictionary<string, dynamic>)Newtonsoft.Json.JsonConvert.DeserializeObject(json, typeof(Dictionary<string, dynamic>));
if (data.ContainsKey("data"))
{
Newtonsoft.Json.Linq.JArray a = (Newtonsoft.Json.Linq.JArray)data["data"];
foreach (Newtonsoft.Json.Linq.JObject o in a)
{
rows++;
postIds.Add(o["id"].ToString(), o["id"].ToString());
}
}
if (data.ContainsKey("paging"))
{
try
{
if (data["paging"]["next"] == url)
{
//otherwise we will be stuck in the infinite loop, as next url of the last page is not null
break;
}
//if next link is present, there are more pages available
url = null;
url = data["paging"]["next"];
}
catch (Exception)
{
}
}
}
}
return postIds;
}
You can break the loop, if you reach to the point, where you only receive empty results.
So you just simply extend your while loop with a second condition. Here is some simple pseudocode:
while (url != null && resultsOnPage) {
[...]
if (data.ContainsKey("data") && data['data'].Count > 0 ) {
[...]
} else {
resultsOnPage = false;
}
[...]
}
Just leave the rest as it is.
I have used facebook login in my application, I have used FBgraphapiurl to get the details. But I can't get the birthday, country, state, city. Whereas the firstname,Lastname, email id are coming properly. Here is my code:
var url5 = FBgraphapiurl+'me?fields=id,first_name,last_name,email,gender&access_token=' + fbcodessss + '&redirect_uri=http://www.fastabuy.com/index.php';
Ext.Ajax.request({
url: url5,
success: function (data, status) {
var jsondata = eval("(" + data.responseText + ")");
var data = jsondata;
var id = data.id;
var email = data.email;
var name = data.first_name;
if (data.id != null) {
App.gvars.BuyFBID = data.id;
}
if (data.first_name != null) {
Ext.getCmp('firstname').setValue(data.first_name);
Ext.getCmp('lastname').setValue(data.last_name);
}
if (data.email != null) {
Ext.getCmp('emailId').setValue(data.email);
Ext.getCmp('Gender').setValue(data.gender);
}
}
})}});
When I try with the following:
var url5 = FBgraphapiurl+'me?fields=id,first_name,last_name,email,gender,birthdate,country,state&access_token=' + fbcodessss + '&redirect_uri=http://www.fastabuy.com/index.php';
What change required to get the country, city, state? Whats wrong with my code?