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ASP.NET MVC 6 Hosting - HostForLIFE.eu :: How to Add Robots.txt to your ASP.NET MVC ?

clock December 17, 2015 21:23 by author Peter

One of the items I continuously forgot to add to my web applications is the Robots.txt file that Search Engines use to see what they should index.  This file and site maps help make your site easier to navigate by the bots and allow them to know what's legal and what you would rather not have the published in their engines.  I usually add any administrative pages or account pages despite the fact that they're protected by security, no need for the login page to be index if they sniff the link.

 

So how do you add Robots.txt to your MVC three application?  Glad you asked, here may be a very little code to get you started.

Code

1. Choose the controller you'd wish to use for the robots.txt output.  I selected the HomeController in my application as i use  it for many “top level” generic links like about us, contact us, index, etc.

2. Create a method called Robots to handle the request.
#region -- Robots() Method –
public ActionResult Robots()
{
    Response.ContentType = "text/plain";
    return View();

}
#endregion

Add the Robots.cshtml view to your Controller’s View directory.  Here is the code I have in my view, yours will vary.
@{
    Layout = null;
}
# robots.txt for @this.Request.Url.Host 
User-agent: *
Disallow: /Administration/
Disallow: /Account/

Load up the class you are using to control your routes, if you are in an Area, this could your AreaRegistration class.  If you are at the top like I am and using the standard MVC template, this is probably the Global.asax.cs file.  Add your route to this file, mine looks like this.

routes.MapRoute("Robots.txt",               
"robots.txt",

new { controller = "Home", action = "Robots" });

Now, Compile and test.

If you have an internet facing site, the chances are you will have a bot find you're request this page. you might as well offer them the advantage of the doubt and allow them to know where you want them to travel. additionally you may save yourself some error log once this page is requested and no controller is found.

Just like something in ASP.NET, there are some ways to solve this riddle, if you employ a special approach, please feel free to share it within the comments.

HostForLIFE.eu ASP.NET MVC 6 Hosting
HostForLIFE.eu is European Windows Hosting Provider which focuses on Windows Platform only. We deliver on-demand hosting solutions including Shared hosting, Reseller Hosting, Cloud Hosting, Dedicated Servers, and IT as a Service for companies of all sizes. We have customers from around the globe, spread across every continent. We serve the hosting needs of the business and professional, government and nonprofit, entertainment and personal use market segments.



ASP.NET MVC 6 Hosting - HostForLIFE.eu :: How to Implement RoleManager in ASP.NET MVC 5?

clock December 11, 2015 00:34 by author Peter

There is something great included in ASP.NET MVC 5 that looks underutilized except by the ASP.NET MVC team. the rest of us seem to be ignoring it, that is apparent when gazing the solutions on StackOverflow (and blogs) for questions like “how do i use roles with ASP.NET MVC 5?” once I check out how identity is implemented in mvc, what stands out is that the dependency injection. And, that dependency injection seems to be missing in the answers to how to implement roles. Dependency is a great tool, it’s built into the OWIN implementation, so why not use it?

To implement the role manager in MVC 5, look for a file in App_Start called IdentityConfig.cs. If you don’t have this file, look for the file that contains the implementation of your ApplicationUserManager (derived from UserManager) and ApplicationSignInManager (derived from SignInManager). At the bottom of that file, within the namespace, add the subsequent class definition:
public class ApplicationRoleManager : RoleManager<IdentityRole>
{
public ApplicationRoleManager(IRoleStore<IdentityRole, string> store) : base(store)
{
}

public static ApplicationRoleManager Create(IdentityFactoryOptions<ApplicationRoleManager> options, IOwinContext context)
{
    var roleStore = new RoleStore<IdentityRole>(context.Get<AuthenticationDbContext>());
    return new ApplicationRoleManager(roleStore);
}
}


There are a couple of prototypes for the produce method. during this case, I needed to urge the database context from the OWIN context, so I used the more elaborate overload. If you don’t want to do that, you can use the Create(Func&lt;T&gt;) overload, which doesn’t take any parameters.  Now, to make sure OWIN knows about your ApplicationRoleManager class, go the ConfigureAuth method in your Startup partial class implementation in Startup.Auth.cs (also in App_Start).  Or, you'll also put what I’m getting ready to show you in the Configuration method of the OWIN startup class. This class is sometimes called Startup.cs and you’ll find it in the same directory as the root web.config.
public void ConfigureAuth(IAppBuilder app)
{
   // Configure the db context, user manager and signin manager to use a single instance per request
   app.CreatePerOwinContext(AuthenticationDbContext.Create);
   app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);
   app.CreatePerOwinContext<ApplicationSignInManager>(ApplicationSignInManager.Create);
   app.CreatePerOwinContext<ApplicationRoleManager>(ApplicationRoleManager.Create);
   …
}

See how I just stuck that line for ApplicationRoleManager there next to the other authentication delegate registrations?  Now, we can just inject the role manager right into the AccountController or whatever other controller we need.
public AccountController(
    SendMailManager emailManager,
    ApplicationUserManager userManager,
    ApplicationSignInManager signInManager,
    ApplicationRoleManager roleManager)
{
    this.MailManager = emailManager;
    this.RoleManager = roleManager;
    this.SignInManager = signInManager;
    this.UserManager = userManager;
}

As you can see, I have already used the dependency injection to insert my own mail manager. AccountController should already be set up with this kind of structure. If it’s not, though, simply changing your constructor to look like this will cause MVC to inject those dependencies into your controller. Then, all you have to do is create a property to hold that ApplicationRoleManager thing and you’re all set!
private ApplicationRoleManager roleManager;
public ApplicationRoleManager RoleManager
{
    get
    {
        return this.roleManager ?? HttpContext.GetOwinContext().Get<ApplicationRoleManager>();
    }
    private set { this.roleManager = value; }
}

HostForLIFE.eu ASP.NET MVC 6 Hosting
HostForLIFE.eu is European Windows Hosting Provider which focuses on Windows Platform only. We deliver on-demand hosting solutions including Shared hosting, Reseller Hosting, Cloud Hosting, Dedicated Servers, and IT as a Service for companies of all sizes. We have customers from around the globe, spread across every continent. We serve the hosting needs of the business and professional, government and nonprofit, entertainment and personal use market segments.



About HostForLIFE.eu

HostForLIFE.eu is European Windows Hosting Provider which focuses on Windows Platform only. We deliver on-demand hosting solutions including Shared hosting, Reseller Hosting, Cloud Hosting, Dedicated Servers, and IT as a Service for companies of all sizes.

We have offered the latest Windows 2012 Hosting, ASP.NET 4.5 Hosting, ASP.NET MVC 5 Hosting, and SQL 2014 Hosting.


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