将ASP.NET MVC5身份验证添加到现有项目

Question

我在网上看到过很多类似的页面,但大多数都使用新项目而不是现有项目,或者没有必要的功能.所以,我有一个现有的MVC 5项目,并希望将ASP.NET MVC5 Identity与登录,电子邮件确认和密码重置功能集成.

除此之外,我还需要在数据库上创建所有必要的表,即用户,角色,组等(我在我的项目中使用EF Code First).是否有符合这些需求的文章或样本？任何建议将不胜感激.提前致谢...

Answer 1

为现有项目配置标识并不困难.您必须安装一些NuGet包并进行一些小配置.

首先在Package Manager Console中安装这些NuGet包:

PM> Install-Package Microsoft.AspNet.Identity.Owin 
PM> Install-Package Microsoft.AspNet.Identity.EntityFramework
PM> Install-Package Microsoft.Owin.Host.SystemWeb 

添加用户类和IdentityUser继承:

public class AppUser : IdentityUser
{
    //add your custom properties which have not included in IdentityUser before
    public string MyExtraProperty { get; set; }  
}

为角色做同样的事情:

public class AppRole : IdentityRole
{
    public AppRole() : base() { }
    public AppRole(string name) : base(name) { }
    // extra properties here 
}

将您的DbContext父表单更改DbContext为IdentityDbContext<AppUser>:

public class MyDbContext : IdentityDbContext<AppUser>
{
    // Other part of codes still same 
    // You don't need to add AppUser and AppRole 
    // since automatically added by inheriting form IdentityDbContext<AppUser>
}

如果使用相同的连接字符串并启用了迁移,EF将为您创建必要的表.

您可以UserManager选择添加所需的配置和自定义:

public class AppUserManager : UserManager<AppUser>
{
    public AppUserManager(IUserStore<AppUser> store)
        : base(store)
    {
    }

    // this method is called by Owin therefore this is the best place to configure your User Manager
    public static AppUserManager Create(
        IdentityFactoryOptions<AppUserManager> options, IOwinContext context)
    {
        var manager = new AppUserManager(
            new UserStore<AppUser>(context.Get<MyDbContext>()));

        // optionally configure your manager
        // ...

        return manager;
    }
}

由于Identity基于OWIN,因此您还需要配置OWIN:

将类添加到App_Start文件夹(或任何其他地方,如果需要).该类由OWIN使用

namespace MyAppNamespace
{
    public class IdentityConfig
    {
        public void Configuration(IAppBuilder app)
        {
            app.CreatePerOwinContext(() => new MyDbContext());
            app.CreatePerOwinContext<AppUserManager>(AppUserManager.Create);
            app.CreatePerOwinContext<RoleManager<AppRole>>((options, context) =>
                new RoleManager<AppRole>(
                    new RoleStore<AppRole>(context.Get<MyDbContext>())));

            app.UseCookieAuthentication(new CookieAuthenticationOptions
            {
                AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
                LoginPath = new PathString("/Home/Login"),
            });
        }
    }
}

几乎只需将这行代码添加到您的web.config文件中,以便OWIN可以找到您的启动类.

<appSettings>
    <!-- other setting here -->
    <add key="owin:AppStartup" value="MyAppNamespace.IdentityConfig" />
</appSettings>

现在在整个项目中,您可以使用Identity,就像VS已经安装了新项目一样.例如,考虑登录操作

[HttpPost]
public ActionResult Login(LoginViewModel login)
{
    if (ModelState.IsValid)
    {
        var userManager = HttpContext.GetOwinContext().GetUserManager<AppUserManager>();
        var authManager = HttpContext.GetOwinContext().Authentication;

        AppUser user = userManager.Find(login.UserName, login.Password);
        if (user != null)
        {
            var ident = userManager.CreateIdentity(user, 
                DefaultAuthenticationTypes.ApplicationCookie);
            //use the instance that has been created. 
            authManager.SignIn(
                new AuthenticationProperties { IsPersistent = false }, ident);
            return Redirect(login.ReturnUrl ?? Url.Action("Index", "Home"));
        }
    }
    ModelState.AddModelError("", "Invalid username or password");
    return View(login);
}

您可以创建角色并添加到您的用户:

public ActionResult CreateRole(string roleName)
{
    var roleManager=HttpContext.GetOwinContext().GetUserManager<RoleManager<AppRole>>();

    if (!roleManager.RoleExists(roleName))
        roleManager.Create(new AppRole(roleName));
    // rest of code
} 

您可以向任何用户添加任何角色,如下所示:

UserManager.AddToRole(UserManager.FindByName("username").Id, "roleName");

通过使用,Authorize您可以保护您的行动或控制器:

[Authorize]
public ActionResult MySecretAction() {}

要么

[Authorize(Roles = "Admin")]]
public ActionResult MySecretAction() {}

您还可以安装其他软件包并对其进行配置以满足您的要求Microsoft.Owin.Security.Facebook,无论您想要哪个或哪个.

注意:不要忘记在文件中添加相关的命名空间:

using Microsoft.AspNet.Identity;
using Microsoft.Owin.Security;
using Microsoft.AspNet.Identity.Owin;
using Microsoft.AspNet.Identity.EntityFramework;
using Microsoft.Owin;
using Microsoft.Owin.Security.Cookies;
using Owin;

你也可以看到我的其他答案喜欢这个和这个先进的使用身份.

Answer 2

这就是我将Identity与现有数据库集成的方法.

1. 使用MVC模板创建示例MVC项目.这包含Identity实现所需的所有代码 - Startup.Auth.cs,IdentityConfig.cs,Account Controller代码,Manage Controller,Models和相关视图.

2. 为Identity和OWIN安装必要的nuget包.通过查看示例项目中的引用和@Sam的答案,您将获得一个想法

3. 将所有这些代码复制到现有项目中.请注意,不要忘记为Identity添加"DefaultConnection"连接字符串以映射到您的数据库.请检查IdentityModel.cs中的ApplicationDBContext类,您将在其中找到对"DefaultConnection"连接字符串的引用.

4. 这是我在现有数据库上运行的SQL脚本,用于创建必要的表:

   USE ["YourDatabse"]
   GO
   /****** Object:  Table [dbo].[AspNetRoles]    Script Date: 16-Aug-15 6:52:25 PM ******/
   SET ANSI_NULLS ON
   GO
   SET QUOTED_IDENTIFIER ON
   GO
   CREATE TABLE [dbo].[AspNetRoles](
   [Id] [nvarchar](128) NOT NULL,
   [Name] [nvarchar](256) NOT NULL,
   CONSTRAINT [PK_dbo.AspNetRoles] PRIMARY KEY CLUSTERED 
   (
     [Id] ASC
   )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
   ) ON [PRIMARY]
   
   GO
   /****** Object:  Table [dbo].[AspNetUserClaims]    Script Date: 16-Aug-15 6:52:25 PM ******/
   SET ANSI_NULLS ON
   GO
   SET QUOTED_IDENTIFIER ON
   GO
   CREATE TABLE [dbo].[AspNetUserClaims](
      [Id] [int] IDENTITY(1,1) NOT NULL,
      [UserId] [nvarchar](128) NOT NULL,
      [ClaimType] [nvarchar](max) NULL,
      [ClaimValue] [nvarchar](max) NULL,
   CONSTRAINT [PK_dbo.AspNetUserClaims] PRIMARY KEY CLUSTERED 
   (
      [Id] ASC
   )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
   ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
   
   GO
   /****** Object:  Table [dbo].[AspNetUserLogins]    Script Date: 16-Aug-15 6:52:25 PM ******/
   SET ANSI_NULLS ON
   GO
   SET QUOTED_IDENTIFIER ON
   GO
   CREATE TABLE [dbo].[AspNetUserLogins](
       [LoginProvider] [nvarchar](128) NOT NULL,
       [ProviderKey] [nvarchar](128) NOT NULL,
       [UserId] [nvarchar](128) NOT NULL,
   CONSTRAINT [PK_dbo.AspNetUserLogins] PRIMARY KEY CLUSTERED 
   (
       [LoginProvider] ASC,
       [ProviderKey] ASC,
       [UserId] ASC
   )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
   ) ON [PRIMARY]
   
   GO
   /****** Object:  Table [dbo].[AspNetUserRoles]    Script Date: 16-Aug-15 6:52:25 PM ******/
   SET ANSI_NULLS ON
   GO
   SET QUOTED_IDENTIFIER ON
   GO
   CREATE TABLE [dbo].[AspNetUserRoles](
      [UserId] [nvarchar](128) NOT NULL,
      [RoleId] [nvarchar](128) NOT NULL,
   CONSTRAINT [PK_dbo.AspNetUserRoles] PRIMARY KEY CLUSTERED 
   (
       [UserId] ASC,
       [RoleId] ASC
   )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
   ) ON [PRIMARY]
   
   GO
   /****** Object:  Table [dbo].[AspNetUsers]    Script Date: 16-Aug-15 6:52:25 PM ******/
   SET ANSI_NULLS ON
   GO
   SET QUOTED_IDENTIFIER ON
   GO
   CREATE TABLE [dbo].[AspNetUsers](
       [Id] [nvarchar](128) NOT NULL,
       [Email] [nvarchar](256) NULL,
       [EmailConfirmed] [bit] NOT NULL,
       [PasswordHash] [nvarchar](max) NULL,
       [SecurityStamp] [nvarchar](max) NULL,
       [PhoneNumber] [nvarchar](max) NULL,
       [PhoneNumberConfirmed] [bit] NOT NULL,
       [TwoFactorEnabled] [bit] NOT NULL,
       [LockoutEndDateUtc] [datetime] NULL,
       [LockoutEnabled] [bit] NOT NULL,
       [AccessFailedCount] [int] NOT NULL,
       [UserName] [nvarchar](256) NOT NULL,
   CONSTRAINT [PK_dbo.AspNetUsers] PRIMARY KEY CLUSTERED 
   (
       [Id] ASC
   )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
   ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
   
    GO
    ALTER TABLE [dbo].[AspNetUserClaims]  WITH CHECK ADD  CONSTRAINT [FK_dbo.AspNetUserClaims_dbo.AspNetUsers_UserId] FOREIGN KEY([UserId])
    REFERENCES [dbo].[AspNetUsers] ([Id])
    ON DELETE CASCADE
    GO
    ALTER TABLE [dbo].[AspNetUserClaims] CHECK CONSTRAINT [FK_dbo.AspNetUserClaims_dbo.AspNetUsers_UserId]
    GO
    ALTER TABLE [dbo].[AspNetUserLogins]  WITH CHECK ADD  CONSTRAINT [FK_dbo.AspNetUserLogins_dbo.AspNetUsers_UserId] FOREIGN KEY([UserId])
    REFERENCES [dbo].[AspNetUsers] ([Id])
    ON DELETE CASCADE
    GO
    ALTER TABLE [dbo].[AspNetUserLogins] CHECK CONSTRAINT [FK_dbo.AspNetUserLogins_dbo.AspNetUsers_UserId]
    GO
    ALTER TABLE [dbo].[AspNetUserRoles]  WITH CHECK ADD  CONSTRAINT [FK_dbo.AspNetUserRoles_dbo.AspNetRoles_RoleId] FOREIGN KEY([RoleId])
    REFERENCES [dbo].[AspNetRoles] ([Id])
    ON DELETE CASCADE
    GO
    ALTER TABLE [dbo].[AspNetUserRoles] CHECK CONSTRAINT [FK_dbo.AspNetUserRoles_dbo.AspNetRoles_RoleId]
    GO
    ALTER TABLE [dbo].[AspNetUserRoles]  WITH CHECK ADD  CONSTRAINT [FK_dbo.AspNetUserRoles_dbo.AspNetUsers_UserId] FOREIGN KEY([UserId])
    REFERENCES [dbo].[AspNetUsers] ([Id])
    ON DELETE CASCADE
    GO
    ALTER TABLE [dbo].[AspNetUserRoles] CHECK CONSTRAINT [FK_dbo.AspNetUserRoles_dbo.AspNetUsers_UserId]
    GO
   

5. 检查并解决任何剩余的错误,您就完成了.身份将处理其余的:)