From cabbcc1ef8f3ab711371eec6a65c255e61de413a Mon Sep 17 00:00:00 2001
From: Syndamia <kamen.d.mladenov@protonmail.com>
Date: Thu, 6 May 2021 22:29:54 +0300
Subject: Impllemented user login and updated navbar

---
 ExamTemplate/Data/Repositories/UserRepository.cs    | 13 +++++++++++++
 .../Services/Models/LoginUserServiceModel.cs        |  8 ++++++++
 ExamTemplate/Services/Services.csproj               |  1 +
 ExamTemplate/Services/UserService.cs                | 14 +++++++++++++-
 ExamTemplate/Web/Configurations/UserMappings.cs     |  1 +
 ExamTemplate/Web/Controllers/UserController.cs      | 21 +++++++++++++++++++++
 ExamTemplate/Web/Models/User/LoginUserViewModel.cs  |  8 ++++++++
 ExamTemplate/Web/Views/Shared/_Navbar.cshtml        | 18 ++++++++++++++++--
 ExamTemplate/Web/Views/User/Login.cshtml            | 10 ++++++++++
 ExamTemplate/Web/Views/_ViewImports.cshtml          |  5 +++--
 10 files changed, 94 insertions(+), 5 deletions(-)
 create mode 100644 ExamTemplate/Services/Models/LoginUserServiceModel.cs
 create mode 100644 ExamTemplate/Web/Models/User/LoginUserViewModel.cs
 create mode 100644 ExamTemplate/Web/Views/User/Login.cshtml

diff --git a/ExamTemplate/Data/Repositories/UserRepository.cs b/ExamTemplate/Data/Repositories/UserRepository.cs
index 97eb21b..04e1f45 100644
--- a/ExamTemplate/Data/Repositories/UserRepository.cs
+++ b/ExamTemplate/Data/Repositories/UserRepository.cs
@@ -1,6 +1,7 @@
 using System.Threading.Tasks;
 using ExamTemplate.Data.Models;
 using Microsoft.AspNetCore.Identity;
+using Microsoft.EntityFrameworkCore;
 
 namespace ExamTemplate.Data.Repositories 
 {
@@ -17,6 +18,13 @@ namespace ExamTemplate.Data.Repositories
 			this._roleManager = roleManager;
 		}
 
+		public async Task<User> GetByUsernameAsync(string username)
+		{
+			return await this._userManager.Users
+				.Include(x => x.Roles)
+				.FirstOrDefaultAsync(x => x.UserName == username);
+		}
+
 		public async Task<bool> AddAsync(User user, string password)
 		{
 			user.PasswordHash = this._userManager.PasswordHasher.HashPassword(user, password);
@@ -36,5 +44,10 @@ namespace ExamTemplate.Data.Repositories
 
 			return succeeded;
 		}
+
+		public async Task<bool> VerifyPasswordAsync(User user, string password)
+		{
+			return await this._userManager.CheckPasswordAsync(user, password);
+		}
 	}
 }
diff --git a/ExamTemplate/Services/Models/LoginUserServiceModel.cs b/ExamTemplate/Services/Models/LoginUserServiceModel.cs
new file mode 100644
index 0000000..1d8a2f8
--- /dev/null
+++ b/ExamTemplate/Services/Models/LoginUserServiceModel.cs
@@ -0,0 +1,8 @@
+namespace ExamTemplate.Services.Models
+{
+	public class LoginUserServiceModel
+	{
+		public string Username { get; set; }
+		public string Password { get; set; }
+	}
+}
diff --git a/ExamTemplate/Services/Services.csproj b/ExamTemplate/Services/Services.csproj
index bac932a..9383013 100644
--- a/ExamTemplate/Services/Services.csproj
+++ b/ExamTemplate/Services/Services.csproj
@@ -7,6 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="Automapper" Version="10.1.1" />
+    <PackageReference Include="Microsoft.AspNetCore.Identity" Version="2.2.0" />
   </ItemGroup>
 
   <PropertyGroup>
diff --git a/ExamTemplate/Services/UserService.cs b/ExamTemplate/Services/UserService.cs
index 848edf6..f8075f5 100644
--- a/ExamTemplate/Services/UserService.cs
+++ b/ExamTemplate/Services/UserService.cs
@@ -3,6 +3,7 @@ using AutoMapper;
 using ExamTemplate.Data.Models;
 using ExamTemplate.Data.Repositories;
 using ExamTemplate.Services.Models;
+using Microsoft.AspNetCore.Identity;
 
 namespace ExamTemplate.Services
 {
@@ -10,11 +11,13 @@ namespace ExamTemplate.Services
 	{
 		private readonly IMapper _autoMapper;
 		private readonly UserRepository _userRepository;
+		private readonly SignInManager<User> _signInManager;
 
-		public UserService(IMapper autoMapper, UserRepository userRepository)
+		public UserService(IMapper autoMapper, UserRepository userRepository, SignInManager<User> signInManager)
 		{
 			this._autoMapper = autoMapper;
 			this._userRepository = userRepository;
+			this._signInManager = signInManager;
 		}
 
 		public async Task<bool> RegisterUserAsync(RegisterUserServiceModel registerUserServiceModel)
@@ -26,5 +29,14 @@ namespace ExamTemplate.Services
 
 			return userCreateResult && addRoleResult;
 		}
+
+		public async Task<bool> LoginUserAsync(LoginUserServiceModel loginUserServiceModel)
+		{
+			User user = await this._userRepository.GetByUsernameAsync(loginUserServiceModel.Username);
+
+			var result = await this._signInManager.PasswordSignInAsync(loginUserServiceModel.Username, loginUserServiceModel.Password, false, false);
+
+			return result.Succeeded;
+		}
 	}
 }
diff --git a/ExamTemplate/Web/Configurations/UserMappings.cs b/ExamTemplate/Web/Configurations/UserMappings.cs
index d1a5523..37476ed 100644
--- a/ExamTemplate/Web/Configurations/UserMappings.cs
+++ b/ExamTemplate/Web/Configurations/UserMappings.cs
@@ -9,6 +9,7 @@ namespace ExamTemplate.Services.Configurations
 		public UserMappings()
 		{
 			CreateMap<RegisterUserViewModel, RegisterUserServiceModel>();
+			CreateMap<LoginUserViewModel, LoginUserServiceModel>();
 		}
 	}
 }
diff --git a/ExamTemplate/Web/Controllers/UserController.cs b/ExamTemplate/Web/Controllers/UserController.cs
index cd472de..f4b6edf 100644
--- a/ExamTemplate/Web/Controllers/UserController.cs
+++ b/ExamTemplate/Web/Controllers/UserController.cs
@@ -38,5 +38,26 @@ namespace ExamTemplate.Web.Controllers
 			else
 				return View();
 		}
+
+		[HttpGet]
+		[Route("/Login")]
+		public IActionResult Login()
+		{
+			return View();
+		}
+
+		[HttpPost]
+		[Route("/Login")]
+		public async Task<IActionResult> Login(LoginUserViewModel loginUserViewModel)
+		{
+			LoginUserServiceModel loginUserServiceModel = this._autoMapper.Map<LoginUserServiceModel>(loginUserViewModel);
+
+			bool result = await this._userService.LoginUserAsync(loginUserServiceModel);
+
+			if (result)
+				return RedirectToAction("Index", "Home");
+			else
+				return View();
+		}
 	}
 }
diff --git a/ExamTemplate/Web/Models/User/LoginUserViewModel.cs b/ExamTemplate/Web/Models/User/LoginUserViewModel.cs
new file mode 100644
index 0000000..6430183
--- /dev/null
+++ b/ExamTemplate/Web/Models/User/LoginUserViewModel.cs
@@ -0,0 +1,8 @@
+namespace ExamTemplate.Web.Models.User
+{
+	public class LoginUserViewModel
+	{
+		public string Username { get; set; }
+		public string Password { get; set; }
+	}
+}
diff --git a/ExamTemplate/Web/Views/Shared/_Navbar.cshtml b/ExamTemplate/Web/Views/Shared/_Navbar.cshtml
index f81d082..f60b799 100644
--- a/ExamTemplate/Web/Views/Shared/_Navbar.cshtml
+++ b/ExamTemplate/Web/Views/Shared/_Navbar.cshtml
@@ -1,14 +1,28 @@
+@using Microsoft.AspNetCore.Identity
+
+@inject SignInManager<User> SignInManager
+@inject UserManager<User> UserManager
+
 <nav class="navbar border-bottom box-shadow">
 	<div class="middle-content-container navbar-contents">
 		<section>
 			<b>
 				<a asp-controller="Home" asp-action="Index">Web</a>
 			</b>
+			<a asp-controller="Home" asp-action="Index">Home</a>
+			<a asp-controller="Home" asp-action="Privacy">Privacy</a>
 		</section>
 		<div class="flex-spacer"></div>
 		<section>
-			<a asp-controller="Home" asp-action="Index">Home</a>
-			<a asp-controller="Home" asp-action="Privacy">Privacy</a>
+			@if (SignInManager.IsSignedIn(User))
+			{
+				<a asp-controller="User" asp-action="">@UserManager.GetUserName(User)</a>
+			}
+			else
+			{
+				<a asp-controller="User" asp-action="Login">Login</a>
+				<a asp-controller="User" asp-action="Register">Register</a>
+			}
 		</section>
 	</div> 
 </nav>
diff --git a/ExamTemplate/Web/Views/User/Login.cshtml b/ExamTemplate/Web/Views/User/Login.cshtml
new file mode 100644
index 0000000..8df3013
--- /dev/null
+++ b/ExamTemplate/Web/Views/User/Login.cshtml
@@ -0,0 +1,10 @@
+@model ExamTemplate.Web.Models.User.LoginUserViewModel
+@{
+    ViewData["Title"] = "Login";
+}
+
+<form asp-controller="User" asp-action="Login" method="post">
+	<input type="text" asp-for="Username" placeholder="Username">
+	<input type="password" asp-for="Password" placeholder="Password">
+	<input type="submit">
+</form>
diff --git a/ExamTemplate/Web/Views/_ViewImports.cshtml b/ExamTemplate/Web/Views/_ViewImports.cshtml
index bf79573..fcc5117 100644
--- a/ExamTemplate/Web/Views/_ViewImports.cshtml
+++ b/ExamTemplate/Web/Views/_ViewImports.cshtml
@@ -1,3 +1,4 @@
-@using Web
-@using Web.Models
+@using ExamTemplate.Web
+@using ExamTemplate.Web.Models
+@using ExamTemplate.Data.Models
 @addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
-- 
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