MVC authentication 01-BASIC, Remote authentication

Original: MVC authentication 01-BASIC, Remote authentication

This article experiences MVC server side and client authentication. Mainly related to:
※ Basic Verification
※ Remote verification of 1 or more attributes and points of attention

Basic Experience

The creation of MVC4 's Internet project, which itself contains the basic model,views,controller.

-model Verification Features

Expand     Public classRegistermodel {[Required] [Stringlength (3, minimumlength = 2)]//Plus[Display (Name = "User name")] Public stringUserName {Get;Set; } [Required] [stringlength (errormessage = "{ 0} field minimum {2} characters, up to {1} characters", Minimumlength = 6)] [DataType (Datatype.password)] [Display (Name ="Password")] Public stringPassword {Get;Set; } [DataType (Datatype.password)] [Display (Name = "Confirm Password")] [Compare ("Password", errormessage ="The password and confirmation password do not match. ")] Public stringConfirmPassword {Get;Set; }    }

Part of the-homecontroller about registration

Expand[AllowAnonymous] PublicActionResult Register () {returnView (); }//        //POST:/account/register[HttpPost]        [AllowAnonymous] [Validateantiforgerytoken] PublicActionResult Register (Registermodel model) {if(modelstate.isvalid) {//Try to register a user                Try{Websecurity.createuserandaccount (model. UserName, model.                    Password); Websecurity.login (model. UserName, model. Password);returnRedirecttoaction ("Index", "Home"); }Catch(MembershipCreateUserException e) {Modelstate.addmodelerror ("", Errorcodetostring (E.statuscode)); }            }//If something goes wrong when we go to this step, re-display the form            returnView (model); }

-/home/register View

Expand@model mvcvalidation.models.registermodel@{viewbag.title = "Register";} @using(Html.BeginForm ())        {@Html. AntiForgeryToken () @Html. ValidationSummary () <fieldset> <legend> Registration Form </legend> <ol> <li> @Html. labelfor (M = m.username) @Html. Textboxfor (M                + m.username) </li> <li> @Html. labelfor (M = m.password) @Html. passwordfor (M = m.password) </li> <li> @Html. labelfor (M = > M.confirmpassword) @Html. passwordfor (M = m.confirmpassword) </li> </ol&        Gt <input type= "Submit"value="Register"/> </fieldset>} @section Scripts {@Scripts. Render ("~/bundles/jqueryval")}

Effect:

-Removal of client authentication

<appSettings>
<add key= "clientvalidationenabled" value= "false"/>
<add key= "unobtrusivejavascriptenabled" value= "false"/>
</appSettings>

Set the client-side validation-related property to False and find the validation much slower.

Experience remote Validation Properties

Sometimes, such as verifying that a user name exists, we want to send an asynchronous request to the controller.
The remote attribute is assigned to the attribute.

Expand     Public classRegistermodel {[Required] [Stringlength (6, minimumlength = 2)]//Plus[Display (Name = "User name")] [Remote ("Checkusername","Validate", errormessage ="Remote authentication of user name failed")] Public stringUserName {Get;Set; } [Required] [stringlength (errormessage = "{ 0} field minimum {2} characters, up to {1} characters", Minimumlength = 6)] [DataType (Datatype.password)] [Display (Name ="Password")] Public stringPassword {Get;Set; } [DataType (Datatype.password)] [Display (Name = "Confirm Password")] [System.ComponentModel.DataAnnotations.Compare ("Password", errormessage ="The password and confirmation password do not match. ")] Public stringConfirmPassword {Get;Set; }    }

Validate Controller

Expand         //The parameter username must be consistent with the attribute username in the view model public         jsonresult checkusername (  String userName)        {            boolfalse;            //Assuming that a username does not pass            if (UserName! = "demo")            {                true;            }            //remote Authentication is requested by the            get method return Json (Isvalidate, jsonrequestbehavior.allowget);        }

Attention:
The Remote Authentication controller method parameters must match the properties of the view model that require remote validation, but are not case sensitive.

Results:

-Remote validation of multiple properties at the same time

For example, we want to remotely verify username and email at the same time.
We can make a remote on one of the properties of the view model, and other properties that require remote validation are listed in Additionalfields.

public string UserName {get; set;}

[Remote ("Checkusername", "Validate", Additionalfields = "UserName", errormessage = "Remote Authentication failed")]
public string Email {get; set;}

Attention:
Additionalfields The fields listed are case-sensitive.

Remote authentication method for the corresponding controller:

Expand //the parameter username here, Email must be username with properties in view model, email is consistent, case insensitive  public  jsonresult Check            UserName (string  UserName, string  email) {            bool  isvalidate = false ;             //assume that a username does not pass  if  (UserName! = "demo " && Email! = "[email              protected]  ") {isvalidate = true ; } //remote authentication is a  return Json (Isvalidate, jsonrequestbehavior.allowget); }