Authentication / Authorization

Who are you, anyway?

src/MyPrayerJournal/App.fs

@@ -1,6 +1,8 @@
+module MyPrayerJournal.App
 
 open Microsoft.AspNetCore.Builder
 open Microsoft.AspNetCore.Hosting
+open Microsoft.AspNetCore.Http
 open Microsoft.AspNetCore.Localization
 open Microsoft.Extensions.Configuration
 open Microsoft.Extensions.DependencyInjection
@@ -31,13 +33,17 @@ type Startup(env : IHostingEnvironment) =
     ignore <| services.AddLocalization (fun options -> options.ResourcesPath <- "Resources")
     ignore <| services.AddMvc ()
     ignore <| services.AddDistributedMemoryCache ()
-    ignore <| services.AddSession ()
     // RethinkDB connection
     async {
       let cfg = services.BuildServiceProvider().GetService<IOptions<AppConfig>>().Value
       let! conn = DataConfig.Connect cfg.DataConfig
       do! conn.EstablishEnvironment cfg
       ignore <| services.AddSingleton conn
+      //ignore <| services.AddDistributedRethinkDBCache (fun options ->
+      //            options.Connection <- conn
+      //            options.Database   <- match cfg.DataConfig.Database with null -> "" | db -> db
+      //            options.TableName  <- "Session")
+      ignore <| services.AddSession ()
     } |> Async.RunSynchronously
 
   // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
@@ -52,8 +58,14 @@ type Startup(env : IHostingEnvironment) =
 
     ignore <| app.UseStaticFiles ()
 
-    // Add external authentication middleware below. To configure them please see https://go.microsoft.com/fwlink/?LinkID=532715
-
+    ignore <| app.UseCookieAuthentication(
+                CookieAuthenticationOptions(
+                  AuthenticationScheme  = Keys.Authentication,
+                  LoginPath             = PathString("/user/log-on"),
+                  AutomaticAuthenticate = true,
+                  AutomaticChallenge    = true,
+                  ExpireTimeSpan        = TimeSpan(2, 0, 0),
+                  SlidingExpiration     = true))
     ignore <| app.UseMvc(fun routes ->
       ignore <| routes.MapRoute(name = "default", template = "{controller=Home}/{action=Index}/{id?}"))
 

src/MyPrayerJournal/Configuration/Keys.fs

@@ -2,6 +2,9 @@
 [<RequireQualifiedAccess>]
 module MyPrayerJournal.Keys
 
+/// Instance name for cookie authentication
+let Authentication = "mpj-authentication"
+
 /// The current user
 let CurrentUser = "mpj-user"
 

src/MyPrayerJournal/Controllers/HomeController.fs

@@ -1,12 +1,21 @@
 namespace MyPrayerJournal.Controllers
 
+open Microsoft.AspNetCore.Authorization
 open Microsoft.AspNetCore.Mvc
+open MyPrayerJournal
 open RethinkDb.Driver.Net
 
 /// Home controller
+[<Authorize>]
 [<Route("")>]
 type HomeController(data : IConnection) =
   inherit ApplicationController(data)
 
+  [<AllowAnonymous>]
   [<HttpGet("")>]
-  member this.Index() = this.View()
+  member this.Index() =
+    async {
+      match this.HttpContext.User with
+      | :? AppUser as user -> return this.View "Dashboard" :> IActionResult
+      | _ -> return upcast this.View () 
+    } |> Async.StartAsTask

src/MyPrayerJournal/Controllers/UserController.fs

@@ -1,5 +1,6 @@
 namespace MyPrayerJournal.Controllers
 
+open Microsoft.AspNetCore.Authorization
 open Microsoft.AspNetCore.Mvc
 open Microsoft.Extensions.Options
 open MyPrayerJournal
@@ -7,34 +8,42 @@ open MyPrayerJournal.ViewModels
 open RethinkDb.Driver.Net
 
 /// Controller for all /user URLs
+[<Authorize>]
 [<Route("user")>]
 type UserController(data : IConnection, cfg : IOptions<AppConfig>) =
   inherit ApplicationController(data)
 
+  [<AllowAnonymous>]
   [<HttpGet("log-on")>]
   member this.ShowLogOn () =
     this.View(LogOnViewModel())
 
-  
+  [<AllowAnonymous>]
   [<HttpPost("log-on")>]
   [<ValidateAntiForgeryToken>]
   member this.DoLogOn (form : LogOnViewModel) =
     async {
       let! user = data.LogOnUser form.Email (User.HashPassword form.Password cfg.Value.PasswordSaltBytes)
       match user with
-      | Some usr -> (* this.Session.[Keys.User] <- usr
+      | Some usr -> do! this.HttpContext.Authentication.SignInAsync(Keys.Authentication, AppUser(user))
+                    // TODO: welcome message
+                    (* this.Session.[Keys.User] <- usr
                     { UserMessage.Empty with Level   = Level.Info
                                              Message = Strings.get "LogOnSuccess" }
-                    |> model.AddMessage
-                    this.Redirect "" model |> ignore // Save the messages in the session before the Nancy redirect
-                    // TODO: investigate if addMessage should update the session when it's called
-                    return this.LoginAndRedirect (System.Guid.Parse usr.Id, fallbackRedirectUrl = "/") :> obj
-                    *)
+                    |> model.AddMessage *)
                     return this.Redirect "/" :> IActionResult
       | _ -> (*{ UserMessage.Empty with Level   = Level.Error
                                       Message = Strings.get "LogOnFailure" }
              |> model.AddMessage
              return this.Redirect "/user/log-on" model *)
-             return upcast this.RedirectToAction("ShowLogOn")
+             return upcast this.RedirectToAction "ShowLogOn"
       //return this.View()
     } |> Async.StartAsTask
+
+  [<HttpGet("log-off")>]
+  member this.LogOff () =
+    async {
+      do! this.HttpContext.Authentication.SignOutAsync(Keys.Authentication)
+      // TODO: goodbye message
+      return this.LocalRedirect "/"
+    } |> Async.StartAsTask

src/MyPrayerJournal/Data/Entities.fs

@@ -1,6 +1,7 @@
 namespace MyPrayerJournal
 
 open Newtonsoft.Json
+open System.Security.Claims
 open System.Security.Cryptography
 
 /// A user
@@ -82,3 +83,10 @@ type Request = {
       |> List.map    (fun item -> item.AsOf)
       |> List.head
 
+/// The user for use with identity
+[<AllowNullLiteral>]
+type AppUser(user : User option) =
+  inherit ClaimsPrincipal()
+
+  /// The current user
+  member val User = user with get

src/MyPrayerJournal/Models/ViewModels/AppViewModel.fs

@@ -3,7 +3,6 @@ namespace MyPrayerJournal.ViewModels
 //open MyPrayerJournal
 
 /// Parent view model for all myPrayerJournal view models
-[<AllowNullLiteral>]
 type AppViewModel() =
   member this.Q = "X"
   (*

src/MyPrayerJournal/Models/ViewModels/User/LogOnViewModel.fs

@@ -2,7 +2,6 @@ namespace MyPrayerJournal.ViewModels
 
 open System.ComponentModel.DataAnnotations
 
-[<AllowNullLiteral>]
 type LogOnViewModel() =
   inherit AppViewModel()