314 lines
15 KiB
C#
314 lines
15 KiB
C#
using System;
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using System.Linq;
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using System.Net.Http;
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using System.Net.Http.Headers;
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using System.Security.Claims;
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using System.Text.Encodings.Web;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Authentication;
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using Microsoft.AspNetCore.Authentication.Cookies;
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using Microsoft.AspNetCore.Authentication.Google;
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using Microsoft.AspNetCore.Authentication.MicrosoftAccount;
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using Microsoft.AspNetCore.Authentication.OAuth;
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using Microsoft.AspNetCore.Authentication.Twitter;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.AspNetCore.Http;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.DependencyInjection;
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using Newtonsoft.Json.Linq;
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namespace SocialSample
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{
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/* Note all servers must use the same address and port because these are pre-registered with the various providers. */
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public class Startup
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{
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public Startup(IHostingEnvironment env)
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{
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var builder = new ConfigurationBuilder()
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.SetBasePath(env.ContentRootPath)
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.AddJsonFile("appsettings.json", optional: true);
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if (env.IsDevelopment())
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{
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// For more details on using the user secret store see http://go.microsoft.com/fwlink/?LinkID=532709
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builder.AddUserSecrets<Startup>();
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}
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builder.AddEnvironmentVariables();
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Configuration = builder.Build();
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}
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public IConfiguration Configuration { get; set; }
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public void ConfigureServices(IServiceCollection services)
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{
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if (string.IsNullOrEmpty(Configuration["facebook:appid"]))
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{
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// User-Secrets: https://docs.asp.net/en/latest/security/app-secrets.html
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// See below for registration instructions for each provider.
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throw new InvalidOperationException("User secrets must be configured for each authentication provider.");
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}
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services.AddAuthentication(options =>
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{
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options.DefaultAuthenticateScheme = CookieAuthenticationDefaults.AuthenticationScheme;
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options.DefaultSignInScheme = CookieAuthenticationDefaults.AuthenticationScheme;
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options.DefaultChallengeScheme = CookieAuthenticationDefaults.AuthenticationScheme;
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});
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services.AddCookieAuthentication(o => o.LoginPath = new PathString("/login"));
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// You must first create an app with Facebook and add its ID and Secret to your user-secrets.
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// https://developers.facebook.com/apps/
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services.AddFacebookAuthentication(o =>
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{
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o.AppId = Configuration["facebook:appid"];
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o.AppSecret = Configuration["facebook:appsecret"];
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o.Scope.Add("email");
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o.Fields.Add("name");
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o.Fields.Add("email");
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o.SaveTokens = true;
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});
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// You must first create an app with Google and add its ID and Secret to your user-secrets.
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// https://console.developers.google.com/project
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services.AddOAuthAuthentication("Google-AccessToken", o =>
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{
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o.ClientId = Configuration["google:clientid"];
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o.ClientSecret = Configuration["google:clientsecret"];
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o.CallbackPath = new PathString("/signin-google-token");
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o.AuthorizationEndpoint = GoogleDefaults.AuthorizationEndpoint;
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o.TokenEndpoint = GoogleDefaults.TokenEndpoint;
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o.Scope.Add("openid");
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o.Scope.Add("profile");
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o.Scope.Add("email");
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o.SaveTokens = true;
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});
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// You must first create an app with Google and add its ID and Secret to your user-secrets.
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// https://console.developers.google.com/project
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services.AddGoogleAuthentication(o =>
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{
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o.ClientId = Configuration["google:clientid"];
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o.ClientSecret = Configuration["google:clientsecret"];
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o.SaveTokens = true;
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o.Events = new OAuthEvents()
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{
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OnRemoteFailure = ctx =>
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{
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ctx.Response.Redirect("/error?FailureMessage=" + UrlEncoder.Default.Encode(ctx.Failure.Message));
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ctx.HandleResponse();
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return Task.FromResult(0);
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}
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};
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o.ClaimActions.MapJsonSubKey("urn:google:image", "image", "url");
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o.ClaimActions.Remove(ClaimTypes.GivenName);
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});
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// You must first create an app with Twitter and add its key and Secret to your user-secrets.
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// https://apps.twitter.com/
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services.AddTwitterAuthentication(o =>
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{
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o.ConsumerKey = Configuration["twitter:consumerkey"];
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o.ConsumerSecret = Configuration["twitter:consumersecret"];
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// http://stackoverflow.com/questions/22627083/can-we-get-email-id-from-twitter-oauth-api/32852370#32852370
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// http://stackoverflow.com/questions/36330675/get-users-email-from-twitter-api-for-external-login-authentication-asp-net-mvc?lq=1
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o.RetrieveUserDetails = true;
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o.SaveTokens = true;
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o.ClaimActions.MapJsonKey("urn:twitter:profilepicture", "profile_image_url", ClaimTypes.Uri);
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o.Events = new TwitterEvents()
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{
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OnRemoteFailure = ctx =>
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{
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ctx.Response.Redirect("/error?FailureMessage=" + UrlEncoder.Default.Encode(ctx.Failure.Message));
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ctx.HandleResponse();
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return Task.FromResult(0);
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}
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};
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});
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/* Azure AD app model v2 has restrictions that prevent the use of plain HTTP for redirect URLs.
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Therefore, to authenticate through microsoft accounts, tryout the sample using the following URL:
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https://localhost:44318/
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*/
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// You must first create an app with Microsoft Account and add its ID and Secret to your user-secrets.
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// https://apps.dev.microsoft.com/
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services.AddOAuthAuthentication("Microsoft-AccessToken", o =>
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{
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o.ClientId = Configuration["microsoftaccount:clientid"];
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o.ClientSecret = Configuration["microsoftaccount:clientsecret"];
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o.CallbackPath = new PathString("/signin-microsoft-token");
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o.AuthorizationEndpoint = MicrosoftAccountDefaults.AuthorizationEndpoint;
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o.TokenEndpoint = MicrosoftAccountDefaults.TokenEndpoint;
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o.Scope.Add("https://graph.microsoft.com/user.read");
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o.SaveTokens = true;
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});
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// You must first create an app with Microsoft Account and add its ID and Secret to your user-secrets.
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// https://azure.microsoft.com/en-us/documentation/articles/active-directory-v2-app-registration/
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services.AddMicrosoftAccountAuthentication(o =>
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{
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o.ClientId = Configuration["microsoftaccount:clientid"];
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o.ClientSecret = Configuration["microsoftaccount:clientsecret"];
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o.SaveTokens = true;
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});
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// You must first create an app with GitHub and add its ID and Secret to your user-secrets.
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// https://github.com/settings/applications/
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services.AddOAuthAuthentication("GitHub-AccessToken", o =>
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{
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o.ClientId = Configuration["github-token:clientid"];
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o.ClientSecret = Configuration["github-token:clientsecret"];
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o.CallbackPath = new PathString("/signin-github-token");
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o.AuthorizationEndpoint = "https://github.com/login/oauth/authorize";
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o.TokenEndpoint = "https://github.com/login/oauth/access_token";
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o.SaveTokens = true;
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o.ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "id");
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o.ClaimActions.MapJsonKey(ClaimTypes.Name, "login");
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o.ClaimActions.MapJsonKey("urn:github:name", "name");
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o.ClaimActions.MapJsonKey(ClaimTypes.Email, "email", ClaimValueTypes.Email);
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o.ClaimActions.MapJsonKey("urn:github:url", "url");
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});
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// You must first create an app with GitHub and add its ID and Secret to your user-secrets.
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// https://github.com/settings/applications/
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services.AddOAuthAuthentication("GitHub", o =>
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{
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o.ClientId = Configuration["github:clientid"];
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o.ClientSecret = Configuration["github:clientsecret"];
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o.CallbackPath = new PathString("/signin-github");
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o.AuthorizationEndpoint = "https://github.com/login/oauth/authorize";
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o.TokenEndpoint = "https://github.com/login/oauth/access_token";
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o.UserInformationEndpoint = "https://api.github.com/user";
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o.ClaimsIssuer = "OAuth2-Github";
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o.SaveTokens = true;
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// Retrieving user information is unique to each provider.
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o.Events = new OAuthEvents
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{
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OnCreatingTicket = async context =>
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{
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// Get the GitHub user
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var request = new HttpRequestMessage(HttpMethod.Get, context.Options.UserInformationEndpoint);
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request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", context.AccessToken);
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request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
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var response = await context.Backchannel.SendAsync(request, context.HttpContext.RequestAborted);
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response.EnsureSuccessStatusCode();
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var user = JObject.Parse(await response.Content.ReadAsStringAsync());
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context.RunClaimActions(user);
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}
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};
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});
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}
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public void Configure(IApplicationBuilder app)
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{
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app.UseDeveloperExceptionPage();
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app.UseAuthentication();
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// Choose an authentication type
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app.Map("/login", signinApp =>
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{
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signinApp.Run(async context =>
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{
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var authType = context.Request.Query["authscheme"];
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if (!string.IsNullOrEmpty(authType))
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{
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// By default the client will be redirect back to the URL that issued the challenge (/login?authtype=foo),
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// send them to the home page instead (/).
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await context.ChallengeAsync(authType, new AuthenticationProperties() { RedirectUri = "/" });
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return;
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}
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context.Response.ContentType = "text/html";
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await context.Response.WriteAsync("<html><body>");
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await context.Response.WriteAsync("Choose an authentication scheme: <br>");
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var schemeProvider = context.RequestServices.GetRequiredService<IAuthenticationSchemeProvider>();
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foreach (var provider in await schemeProvider.GetAllSchemesAsync())
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{
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// REVIEW: we lost access to display name (which is buried in the handler options)
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await context.Response.WriteAsync("<a href=\"?authscheme=" + provider.Name + "\">" + (provider.DisplayName ?? "(suppressed)") + "</a><br>");
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}
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await context.Response.WriteAsync("</body></html>");
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});
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});
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// Sign-out to remove the user cookie.
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app.Map("/logout", signoutApp =>
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{
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signoutApp.Run(async context =>
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{
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context.Response.ContentType = "text/html";
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await context.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
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await context.Response.WriteAsync("<html><body>");
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await context.Response.WriteAsync("You have been logged out. Goodbye " + context.User.Identity.Name + "<br>");
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await context.Response.WriteAsync("<a href=\"/\">Home</a>");
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await context.Response.WriteAsync("</body></html>");
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});
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});
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// Display the remote error
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app.Map("/error", errorApp =>
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{
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errorApp.Run(async context =>
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{
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context.Response.ContentType = "text/html";
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await context.Response.WriteAsync("<html><body>");
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await context.Response.WriteAsync("An remote failure has occurred: " + context.Request.Query["FailureMessage"] + "<br>");
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await context.Response.WriteAsync("<a href=\"/\">Home</a>");
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await context.Response.WriteAsync("</body></html>");
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});
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});
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app.Run(async context =>
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{
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// Setting DefaultAuthenticateScheme causes User to be set
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var user = context.User;
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// This is what [Authorize] calls
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// var user = await context.AuthenticateAsync();
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// This is what [Authorize(ActiveAuthenticationSchemes = MicrosoftAccountDefaults.AuthenticationScheme)] calls
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// var user = await context.AuthenticateAsync(MicrosoftAccountDefaults.AuthenticationScheme);
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// Deny anonymous request beyond this point.
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if (user == null || !user.Identities.Any(identity => identity.IsAuthenticated))
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{
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// This is what [Authorize] calls
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// The cookie middleware will intercept this 401 and redirect to /login
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await context.ChallengeAsync();
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// This is what [Authorize(ActiveAuthenticationSchemes = MicrosoftAccountDefaults.AuthenticationScheme)] calls
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// await context.ChallengeAsync(MicrosoftAccountDefaults.AuthenticationScheme);
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return;
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}
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// Display user information
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context.Response.ContentType = "text/html";
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await context.Response.WriteAsync("<html><body>");
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await context.Response.WriteAsync("Hello " + (context.User.Identity.Name ?? "anonymous") + "<br>");
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foreach (var claim in context.User.Claims)
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{
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await context.Response.WriteAsync(claim.Type + ": " + claim.Value + "<br>");
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}
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await context.Response.WriteAsync("Tokens:<br>");
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await context.Response.WriteAsync("Access Token: " + await context.GetTokenAsync("access_token") + "<br>");
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await context.Response.WriteAsync("Refresh Token: " + await context.GetTokenAsync("refresh_token") + "<br>");
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await context.Response.WriteAsync("Token Type: " + await context.GetTokenAsync("token_type") + "<br>");
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await context.Response.WriteAsync("expires_at: " + await context.GetTokenAsync("expires_at") + "<br>");
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await context.Response.WriteAsync("<a href=\"/logout\">Logout</a><br>");
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await context.Response.WriteAsync("</body></html>");
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});
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}
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}
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}
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