#218 - Command and server logic for changing password.

src/Money.UI.Backend/Bootstrap/BootstrapTask.cs

@@ -1,8 +1,12 @@
 using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Identity;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Money.Commands;
+using Money.Commands.Handlers;
 using Money.Data;
 using Money.Hubs;
+using Money.Models;
 using Money.Services;
 using Neptuo;
 using Neptuo.Activators;
@@ -174,6 +178,8 @@ private void Domain()
             );
 
             bootstrapTask.Initialize();
+
+            commandDispatcher.Handlers.AddAll(new UserHandler(services.BuildServiceProvider().GetRequiredService<UserManager<ApplicationUser>>()));
         }
 
         private void ReadModels()

src/Money.UI.Backend/Commands/Handlers/UserHandler.cs

@@ -0,0 +1,37 @@
+using Microsoft.AspNetCore.Identity;
+using Money.Models;
+using Neptuo;
+using Neptuo.Collections.Specialized;
+using Neptuo.Commands.Handlers;
+using Neptuo.Models.Keys;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Money.Commands.Handlers
+{
+    public class UserHandler : ICommandHandler<Envelope<ChangePassword>>
+    {
+        private readonly UserManager<ApplicationUser> userManager;
+
+        public UserHandler(UserManager<ApplicationUser> userManager)
+        {
+            Ensure.NotNull(userManager, "userManager");
+            this.userManager = userManager;
+        }
+
+        public async Task HandleAsync(Envelope<ChangePassword> command)
+        {
+            StringKey userKey = command.Metadata.Get<StringKey>("UserKey");
+            ApplicationUser user = await userManager.FindByIdAsync(userKey.Identifier);
+            if (user == null)
+                throw new InvalidOperationException($"Unable to load user with ID '{userKey.Identifier}'.");
+
+            IdentityResult result = await userManager.ChangePasswordAsync(user, command.Body.Current, command.Body.New);
+            if (!result.Succeeded)
+                throw new InvalidOperationException($"Password change failed for ID '{userKey.Identifier}'.");
+        }
+    }
+}

src/Money.UI.Blazor/Commands/ChangePassword.cs

@@ -0,0 +1,39 @@
+using Neptuo;
+using Neptuo.Commands;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Money.Commands
+{
+    /// <summary>
+    /// A command for changing user password.
+    /// </summary>
+    public class ChangePassword : Command
+    {
+        /// <summary>
+        /// Gets a current password.
+        /// </summary>
+        public string Current { get; }
+
+        /// <summary>
+        /// Gets a new password.
+        /// </summary>
+        public string New { get; }
+
+        /// <summary>
+        /// Creates a new instance for changing password.
+        /// </summary>
+        /// <param name="current">A current password.</param>
+        /// <param name="new">A new password.</param>
+        public ChangePassword(string current, string @new)
+        {
+            Ensure.NotNull(current, "current");
+            Ensure.NotNull(@new, "new");
+            Current = current;
+            New = @new;
+        }
+    }
+}

src/Money.UI.Blazor/Models/Api/CommandMapper.cs

@@ -30,6 +30,8 @@ public CommandMapper()
             Add<SetExchangeRate>("currency-exchangerate-set");
             Add<RemoveExchangeRate>("currency-exchangerate-remove");
             Add<DeleteCurrency>("currency-delete");
+
+            Add<ChangePassword>("user-change-password");
         }
     }
 }

src/Money.UI.Blazor/Pages/User/ChangePassword.cshtml

@@ -1,28 +1,39 @@
 @page "/user/changepassword"
+@inject ICommandDispatcher Commands
 
 <UserHead />
 
 <div class="user">
     <div class="row">
         <div class="col-md-6">
-            <form method="post">
+            <form method="post" onsubmit="@OnFormSubmit">
                 <div class="form-group">
                     <label for="OldPassword">Current password</label>
-                    <input class="form-control" autofocus="" type="password" data-val="true" data-val-required="The Current password field is required." id="OldPassword" name="OldPassword">
-                    <span class="text-danger field-validation-valid" data-valmsg-for="OldPassword" data-valmsg-replace="true"></span>
+                    <input class="form-control" autofocus="" type="password" id="OldPassword" bind="@Current" />
                 </div>
                 <div class="form-group">
                     <label for="NewPassword">New password</label>
-                    <input class="form-control" type="password" data-val="true" data-val-length="The New password must be at least 4 and at max 100 characters long." data-val-length-max="100" data-val-length-min="4" data-val-required="The New password field is required." id="NewPassword" name="NewPassword">
-                    <span class="text-danger field-validation-valid" data-valmsg-for="NewPassword" data-valmsg-replace="true"></span>
+                    <input class="form-control" type="password" id="NewPassword" bind="@New" />
                 </div>
                 <div class="form-group">
                     <label for="ConfirmPassword">Confirm new password</label>
-                    <input class="form-control" type="password" data-val="true" data-val-equalto="The new password and confirmation password do not match." data-val-equalto-other="*.NewPassword" id="ConfirmPassword" name="ConfirmPassword">
-                    <span class="text-danger field-validation-valid" data-valmsg-for="ConfirmPassword" data-valmsg-replace="true"></span>
+                    <input class="form-control" type="password" id="ConfirmPassword" bind="@Confirm" />
                 </div>
                 <button type="submit" class="btn btn-default">Update password</button>
             </form>
         </div>
     </div>
-</div>
+</div>
+
+@functions
+{
+    public string Current { get; set; }
+    public string New { get; set; }
+    public string Confirm { get; set; }
+
+    private async Task OnFormSubmit()
+    {
+        if (!String.IsNullOrEmpty(Current) && !String.IsNullOrEmpty(New) && New == Confirm)
+            await Commands.HandleAsync(new Commands.ChangePassword(Current, New));
+    }
+}

src/Money.UI.Blazor/Pages/User/Profile.cshtml

@@ -5,15 +5,15 @@
 <div class="user">
     <div class="row">
         <div class="col-md-6">
-            <form method="post">
+            <form method="post" onsubmit="OnFormSubmit">
                 <div class="form-group">
                     <label for="UserName">UserName</label>
                     <input class="form-control" disabled="" type="text" id="UserName" name="UserName" value="maraf">
                 </div>
                 <div class="form-group">
                     <label for="Email">Email</label>
                     <div class="input-group">
-                        <input class="form-control" autofocus="" type="email" data-val="true" data-val-email="The Email field is not a valid e-mail address." data-val-required="The Email field is required." id="Email" name="Email" value="">
+                        <input class="form-control" autofocus type="email" id="Email" name="Email" value="">
                         <span class="input-group-addon" aria-hidden="true"><span class="glyphicon glyphicon-ok text-success"></span></span>
                     </div>
                     <span class="text-danger field-validation-valid" data-valmsg-for="Email" data-valmsg-replace="true"></span>
@@ -22,4 +22,12 @@
             </form>
         </div>
     </div>
-</div>
+</div>
+
+@functions
+{
+    private async Task OnFormSubmit()
+    {
+
+    }
+}

src/Money.UI.Blazor/Services/ApiClient.cs

@@ -29,6 +29,12 @@ public ApiClient(HttpClient http, CommandMapper commandMapper, QueryMapper query
         public Task<string> GetUserNameAsync()
             => http.GetStringAsync("/api/username");
 
+        public Task ChangeEmail(string email)
+            => http.PostJsonAsync("/api/user/changeemail", email);
+
+        public Task ChangePassword(string currentPassword, string newPassword)
+            => http.PostJsonAsync("/api/user/changeemail", new { Current = currentPassword, New = newPassword });
+
         private Request CreateRequest(Type type, string payload)
             => new Request() { Type = type.AssemblyQualifiedName, Payload = payload };
 

src/Money.UI.Blazor/Services/Navigator.cs

@@ -62,5 +62,8 @@ public void OpenAbout()
 
         public void OpenUserManage()
             => uri.NavigateTo(UrlUserManage());
+
+        public void OpenUserPassword()
+            => uri.NavigateTo(UrlUserPassword());
     }
 }