1
我在加載Facebook標識時遇到問題。該頁面正確地重定向到Facebook，但當我回到我的網站時，我無法從Owin讀取身份。無法使用Owin在ASP.NET中加載Facebook標識
這裏是我的Startup.Auth.cs
var cookieOptions = new CookieAuthenticationOptions
{
LoginPath = new PathString("/default.aspx")
};
app.UseCookieAuthentication(cookieOptions);
app.SetDefaultSignInAsAuthenticationType(cookieOptions.AuthenticationType);
var facebookAuthenticationOptions = new FacebookAuthenticationOptions()
{
AppId = ExternalConnections.Where(o => o.Name == "Facebook" && o.Exist && o.SiteId == site.Key).First() != null ? ExternalConnections.Where(o => o.Name == "Facebook" && o.Exist && o.SiteId == site.Key).First().AppId : string.Empty,
AppSecret = ExternalConnections.Where(o => o.Name == "Facebook" && o.Exist && o.SiteId == site.Key).First() != null ? ExternalConnections.Where(o => o.Name == "Facebook" && o.Exist && o.SiteId == site.Key).First().AppSecretKey : string.Empty,
SignInAsAuthenticationType = app.GetDefaultSignInAsAuthenticationType(),
CallbackPath = new PathString("/Default.aspx/")
};
facebookAuthenticationOptions.Provider = new FacebookAuthenticationProvider
{
OnAuthenticated = async context =>
{
context.Identity.AddClaim(new System.Security.Claims.Claim("FacebookAccessToken", context.AccessToken));
foreach (var claim in context.User)
{
var claimType = string.Format("urn:facebook:{0}", claim.Key);
string claimValue = claim.Value.ToString();
if (!context.Identity.HasClaim(claimType, claimValue))
context.Identity.AddClaim(new System.Security.Claims.Claim(claimType, claimValue, "XmlSchemaString", "Facebook"));
}
}
};
facebookAuthenticationOptions.Scope.Add("email");
facebookAuthenticationOptions.Scope.Add("public_profile");
app2.UseFacebookAuthentication(facebookAuthenticationOptions);
而且我PageBase.cs處理登錄：
var ctx = Context.GetOwinContext();
var user = ctx != null ? ctx.Authentication.User : new ClaimsPrincipal();
if (user != null && user.Identities.Count() > 0 && user.Identity.IsAuthenticated)
{
var claimsPrincipal = new ClaimsPrincipal(user.Identity);
Thread.CurrentPrincipal = claimsPrincipal;
var identity = (ClaimsPrincipal)Thread.CurrentPrincipal;
if (identity.Claims.Count() > 0)
{
switch (identity.Claims.First().OriginalIssuer)
{
case "Facebook":
if (!featureExternalLoginFacebook) { break; }
id = identity.Claims.Where(c => c.Type == "urn:facebook:id").Select(c => c.Value).SingleOrDefault();
name = identity.Claims.Where(c => c.Type == ClaimTypes.Name).Select(c => c.Value).SingleOrDefault();
accessToken = identity.Claims.Where(c => c.Type == "FacebookAccessToken").Select(c => c.Value).SingleOrDefault();
var url = string.Format("https://graph.facebook.com/v2.5/{0}?fields=email,first_name,last_name&access_token={1}", id, accessToken);
var req = WebRequest.Create(url);
req.Method = "GET";
req.ContentType = "application/json";
using (var res = new StreamReader(req.GetResponse().GetResponseStream()))
{
dynamic result = Newtonsoft.Json.JsonConvert.DeserializeObject(res.ReadToEnd());
if (result.id != null && result.id == id)
{
email = result.email != null ? result.email : string.Empty;
firstName = result.first_name != null ? result.first_name : string.Empty;
lastName = result.last_name != null ? result.last_name : string.Empty;
}
}
break;
}
externalApp = identity.Claims.First().OriginalIssuer;
if (!string.IsNullOrEmpty(id) && !string.IsNullOrEmpty(email))
{
return true;
}
}
在user.Identities，我已經IsAuthenticated爲真。現在我一直都是假的，而且我沒有身份。對Facebook的讚譽。
我如何獲得有關登錄用戶的Facebook用戶信息，我如何獲得Facebook身份？