server-side-validation

问题 Please check this question before. I frequently heard about "... don't trust the client ! never trust the client ! never trust the user inputs !" I agree with client-side validation alone is a very bad idea. But if so , what is the advantages of using client-side validation ? Is it necessary or not? When should I use client-side validation ? Forget about some bad guys (who try to hack), please think about should every request reach to server side ? I don't think so . Normal users can input

问题 During the integration of G+ account I have turned off Google Play Android Developer API in Google Developer console by mistake. Google server started to return error: Access Not Configured. Please use Google Developers Console to activate the API for your project So I again turned Google Play Android Developer API on, but Google server still returns error: { "error": { "errors": [ { "domain": "global", "reason": "backendError", "message": "Backend Error" } ], "code": 500, "message": "Backend

问题 During the integration of G+ account I have turned off Google Play Android Developer API in Google Developer console by mistake. Google server started to return error: Access Not Configured. Please use Google Developers Console to activate the API for your project So I again turned Google Play Android Developer API on, but Google server still returns error: { "error": { "errors": [ { "domain": "global", "reason": "backendError", "message": "Backend Error" } ], "code": 500, "message": "Backend

问题 I have an ASP.NET MVC3 application that uses entities generated from a database. Each entity has also has a separate partial class that uses the MetadataType attribute to associate each entity with a class that is decorated with a number of validation attributes (see below). [MetadataType(typeof(Drawing.Metadata))] public partial class Drawing { private sealed class Metadata { [Required] [StringLength(50, MinimumLength = 3, ErrorMessage = "Drawing numbers must be between {2} and {1}

问题 while I was working with validation in MVC, and I wrote a custom attribute to validate a property.Initially the client side validation was not working since attribute was not registered.When i clicked on the save button after contacting the server it was showing the error message.So can anyone tell how this server side validation took place instead of client side validation ? attribute usage -> [PhoneNumberHasPlus(ErrorMessage="Invalid number")] public string PhoneNumber {get;set;} attribute

问题 So far I have always validated my dto`s properties for existing values, min, max, length etc.. Now I have a usecase with my http api where the payload of a http post contains Ids (database foreign keys) which either does not exist in the database or these ids does not belong to the userId inside the bearer token. UserId is always a field in each table. Should I really write a repository Method like: // done with 3 queries still room for optimization... public bool NewTestTypeIsValid(string

问题 Of course, I know that server-side validation is a MUST . I'm using jQuery to validate form inputs and using jquery ajax to do server-side(PHP) validation at the same time. So I guess it may be safe since it's validating for both sides while javascript is enabled . Well, here is my problem... But what if the user has javascript disabled on his browser and if some bad guys try to do something bad from editing my client-side script? Because i'm making server-side validation through jquery ajax,

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . The argument for using both client side validation (JavaScript) and server side validation using a validator is this: If the client browser does not support JavaScript, then the user cannot use client side validation. My question is how good is this argument in practice? In theory it makes sense, but in practice

问题 I have an application who use ASP.NET MVC and KnockoutJS for the MVVM part. The server bind the data to the server by JSON. The client treat data and make a standard POST callback after that. I have now to handle some business logic like : The property1 must be superior to 10 if property2 == "FOOBAR" The property2 must be != "" Etc etc... (there is a lot of conditions I have to handle) So, to make things simpler, is it possible to avoid code duplicate between the server side code (C#) and the

问题 Description: I have a simple form in an MVC4 application that has 5 textboxes named loc1-5 and a submit button. The application takes up to 5 addresses in the textboxes loc1-5 and uses the bing geocode services with jQuery to do some processing on the addresses and create a map with directions. The issue is that I need to validate the loc1-5 textboxes to ensure that they are valid addresses before continuing and decided that the best way that makes sense is to use jQuery.validate with a