如何创建ASP.NET MVC 2自定义成员资格的供应商？如何创建ASP.NET MVC 2自定义成

如何创建一个基于ASP.NET成员资格提供了ASP.NET MVC 2自定义成员资格？

Answer 1:

我已经创建了一个包含自定义的成员提供一个新的项目，并推翻了ValidateUser从方法MembershipProvider抽象类：

public class MyMembershipProvider : MembershipProvider
{ 
    public override bool ValidateUser(string username, string password)
    {    
        // this is where you should validate your user credentials against your database.
        // I've made an extra class so i can send more parameters 
        // (in this case it's the CurrentTerritoryID parameter which I used as 
        // one of the MyMembershipProvider class properties). 

        var oUserProvider = new MyUserProvider();  
        return oUserProvider.ValidateUser(username,password,CurrentTerritoryID);
    }
}

然后，我连那提供商到我的ASP.NET MVC 2项目通过添加引用，并从我的web.config指点一下：

<membership defaultProvider="MyMembershipProvider">
    <providers>
        <clear />
        <add name="MyMembershipProvider"
            applicationName="MyApp"
            Description="My Membership Provider"
            passwordFormat="Clear"
            connectionStringName="MyMembershipConnection"
            type="MyApp.MyMembershipProvider" />
    </providers>
</membership>

我需要创建一个继承自定义类RoleProvider抽象类和覆盖GetRolesForUser方法。在ASP.NET MVC中授权使用该方法来找出哪些角色被分配给当前登录的用户，并确保用户被允许访问控制器动作。

以下是我们需要采取的步骤：

1）创建继承RoleProvider抽象类和覆盖GetRolesForUser方法的自定义类：

public override string[] GetRolesForUser(string username)
{
    SpHelper db = new SpHelper();
    DataTable roleNames = null;
    try
    {
        // get roles for this user from DB...

        roleNames = db.ExecuteDataset(ConnectionManager.ConStr,
                    "sp_GetUserRoles",
                    new MySqlParameter("_userName", username)).Tables[0];
    }
    catch (Exception ex)
    {
        throw ex;
    }
    string[] roles = new string[roleNames.Rows.Count];
    int counter = 0;
    foreach (DataRow row in roleNames.Rows)
    {
        roles[counter] = row["Role_Name"].ToString();
        counter++;
    }
    return roles;
}

2）将利用我们的web.config中的ASP.NET MVC 2应用程序中的角色提供：

<system.web>
...

<roleManager enabled="true" defaultProvider="MyRoleProvider">
    <providers>
        <clear />
        <add name="MyRoleProvider"
            applicationName="MyApp"
            type="MyApp.MyRoleProvider"
            connectionStringName="MyMembershipConnection" />
    </providers>
</roleManager>

...
</system.web>

3）设置授权（角色= “XXX，YYY”）想要的控制器/动作以上：

[Authorization(Roles = "Customer Manager,Content Editor")]
public class MyController : Controller
{
    ...... 
}

而已！现在，它的作品！

4）选项：设置自定义Authorize属性，这样就可以重定向到一个存取遭拒页不需要的作用：

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = false)]
public class MyAuthorizationAttribute : AuthorizeAttribute
{
    /// <summary>
    /// The name of the master page or view to use when rendering the view on authorization failure.  Default
    /// is null, indicating to use the master page of the specified view.
    /// </summary>
    public virtual string MasterName { get; set; }

    /// <summary>
    /// The name of the view to render on authorization failure.  Default is "Error".
    /// </summary>
    public virtual string ViewName { get; set; }

    public MyAuthorizationAttribute ()
        : base()
    {
        this.ViewName = "Error";
    }

    protected void CacheValidateHandler(HttpContext context, object data, ref HttpValidationStatus validationStatus)
    {
        validationStatus = OnCacheAuthorization(new HttpContextWrapper(context));
    }

    public override void OnAuthorization(AuthorizationContext filterContext)
    {
        if (filterContext == null)
        {
            throw new ArgumentNullException("filterContext");
        }

        if (AuthorizeCore(filterContext.HttpContext))
        {
            SetCachePolicy(filterContext);
        }
        else if (!filterContext.HttpContext.User.Identity.IsAuthenticated)
        {
            // auth failed, redirect to login page
            filterContext.Result = new HttpUnauthorizedResult();
        }
        else if (filterContext.HttpContext.User.IsInRole("SuperUser"))
        {
            // is authenticated and is in the SuperUser role
            SetCachePolicy(filterContext);
        }
        else
        {
            ViewDataDictionary viewData = new ViewDataDictionary();
            viewData.Add("Message", "You do not have sufficient privileges for this operation.");
            filterContext.Result = new ViewResult { MasterName = this.MasterName, ViewName = this.ViewName, ViewData = viewData };
        }
    }

    protected void SetCachePolicy(AuthorizationContext filterContext)
    {
        // ** IMPORTANT **
        // Since we're performing authorization at the action level, the authorization code runs
        // after the output caching module. In the worst case this could allow an authorized user
        // to cause the page to be cached, then an unauthorized user would later be served the
        // cached page. We work around this by telling proxies not to cache the sensitive page,
        // then we hook our custom authorization code into the caching mechanism so that we have
        // the final say on whether a page should be served from the cache.
        HttpCachePolicyBase cachePolicy = filterContext.HttpContext.Response.Cache;
        cachePolicy.SetProxyMaxAge(new TimeSpan(0));
        cachePolicy.AddValidationCallback(CacheValidateHandler, null /* data */);
    }
}

现在，我们可以用我们自己做的属性给我们的用户重定向到访问被拒绝的看法：

[MyAuthorization(Roles = "Portal Manager,Content Editor", ViewName = "AccessDenied")]
public class DropboxController : Controller
{ 
    .......
}

而已！超级骗子！

下面是一些我使用来获取所有这些信息的链接：

自定义角色提供： http://davidhayden.com/blog/dave/archive/2007/10/17/CreateCustomRoleProviderASPNETRolePermissionsSecurity.aspx

我希望这个信息帮助！

Answer 2:

这为我工作http://mattwrock.com/post/2009/10/14/Implementing-custom-Membership-Provider-and-Role-Provider-for-Authinticating-ASPNET-MVC-Applications.aspx

Answer 3:

它也可以用代码量小得多用这个，我不能完全肯定，如果这个方法是安全的，但工作得很好，你使用任何数据库。

在Global.asax

protected void Application_AuthenticateRequest(object sender, EventArgs e)
    {
        if (HttpContext.Current.User != null)
        {
            if (HttpContext.Current.User.Identity.IsAuthenticated)
            {
                if (HttpContext.Current.User.Identity is FormsIdentity)
                {
                    FormsIdentity id =
                        (FormsIdentity)HttpContext.Current.User.Identity;
                    FormsAuthenticationTicket ticket = id.Ticket;

                    // Get the stored user-data, in this case, our roles
                    string userData = ticket.UserData;
                    string[] roles = userData.Split(',');
                    HttpContext.Current.User = new GenericPrincipal(id, roles);
                }
            }
        }
    }

这是什么一样的是，它读取来自authCookie这是从制造的FormsAuthenticationTicket角色

和登录的逻辑是这样的

public class dbService
{
    private databaseDataContext db = new databaseDataContext();

    public IQueryable<vwPostsInfo> AllPostsAndDetails()
    {
        return db.vwPostsInfos;
    }

    public IQueryable<role> GetUserRoles(int userID)
    {
        return (from r in db.roles
                    join ur in db.UsersRoles on r.rolesID equals ur.rolesID
                    where ur.userID == userID
                    select r);
    }

    public IEnumerable<user> GetUserId(string userName)
    {
        return db.users.Where(u => u.username.ToLower() == userName.ToLower());
    }

    public bool logOn(string username, string password)
    {
        try
        {
            var userID = GetUserId(username);
            var rolesIQueryable = GetUserRoles(Convert.ToInt32(userID.Select(x => x.userID).Single()));
            string roles = "";
            foreach (var role in rolesIQueryable)
            {
                roles += role.rolesName + ",";
            }

            roles.Substring(0, roles.Length - 2);
            FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(
                       1, // Ticket version
                       username, // Username associated with ticket
                       DateTime.Now, // Date/time issued
                       DateTime.Now.AddMinutes(30), // Date/time to expire
                       true, // "true" for a persistent user cookie
                       roles, // User-data, in this case the roles
                       FormsAuthentication.FormsCookiePath);// Path cookie valid for

            // Encrypt the cookie using the machine key for secure transport
            string hash = FormsAuthentication.Encrypt(ticket);
            HttpCookie cookie = new HttpCookie(
               FormsAuthentication.FormsCookieName, // Name of auth cookie
               hash); // Hashed ticket

            // Set the cookie's expiration time to the tickets expiration time
            if (ticket.IsPersistent) cookie.Expires = ticket.Expiration;

            // Add the cookie to the list for outgoing response
            HttpContext.Current.Response.Cookies.Add(cookie);

            return true;
        }
        catch
        {
            return (false);
        }
    }
}

我在数据库中的角色，存储与两个表：表：角色具有的列：角色ID和角色名和表：UsersRoles至极有列：用户ID和角色ID，这使得对多个角色多个用户，并可以很容易地让你自己的逻辑来添加/删除用户的角色等等。这使您可以使用[授权（角色=“超级管理员”）的实例。希望这可以帮助。

编辑：忘了做密码检查，但你只是如果，如果用户名和密码了提供检查，其检查的登录方法添加的，如果没有返回false