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6 Ways To Avoid Mass Assignment in ASP.NET MVC
Mar 1212One of the scenarios that I always demonstrate during an ASP.NET MVC class is how to create a mass assignment vulnerability and then execute an over-posting attack. It is a mass assignment vulnerability that led to a severe problem on github last week. Let's say you have the following model. public class User { public string FirstName { get; set; } public bool IsAdmin { get; set; } } When you want to let a regular user change their first name, you give them the following form. @usin...
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The evolution of asynchronous controllers in ASP.NET MVC
Jan 1209Asynchronous operations in ASP.NET MVC have always been left a bit behind. They appeared in ASP.NET MVC 2, remained untouched in v3, but now in MVC 4 (especially in combination with C# 5 and async/await) they reached the same easiness of use of the standard synchronous controller. Now (or better, in a few months with the release of ASP.NET MVC 4, .NET 4.5 and C# 5) you can write public async Task<ViewResult> Stuff() { return View(await DoStuff("Some stuff")); } In this post I’m going to...
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RFC: Web Platform Installer (WebPI) with an offline feed mode for bandwidth savings
Sep 1124My wife is in the Kingdom of Swaziland this evening. If she was a developer over there and wanted to use Web Platform Installer to get Visual Studio or some large download she would have to patiently bring the bits down over 3G. If she was very well off, she might have ASDL with a maximum speed of 512kbps down, most likely with a cap. I've talked about limited connectivity in African countries and other nations (*cough* New Zealand *cough*) before on this blog and it's no fun. I've told the w...
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Two bugs in ASP.NET MVC 3 and a workaround for both
Jun 1114So I spent an hour today arsing about with a couple of ASP.NET MVC 3 bugs. One was a Routing issue that caused it to act differently to MVC 2. The second I found was a FormsAuthentication issue that insisting on sending me to /Account/Login. Amazing how this crept in really given that it was community tested to death with such a massive ASP.NET MVC following so it is a wonder they weren't weeded out and fixed before RTM. Oh well, don't pretend you don't like a challenge. Routing doesn't work t...
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Adding MVC dependencies to a project for deployment
Jun 1113Deployment of new web applications has been a bit annoying since the birth of ASP.NET MVC. Production servers with .NET 4 or 3.5 installed will still be missing key assemblies such as System.Web.Mvc.dll. This will cause errors such as "Could not load file or assembly 'System.Web.WebPages.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies" and "Could not load file or assembly 'System.Web.Mvc, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf38...
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Modifying the default code generation/scaffolding templates in ASP.NET MVC
Mar 1128One of the things people like the most about my ASP.NE MVC 2 Ninja Black Belt Tips video, besides the Bill Cosby sweater, is the tip where I show how to modify the default CodeTemplates that are used in Code Generation in ASP.NET MVC (either version). Eilon mentioned it on an internal mailing list this week so I thought it'd be worth surfacing again in case you haven't heard of this, Dear Reader. Soon, we'll see even more powerful, flexible, and fun ways to customize your own Scaffolding ...
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Modifying the default code generation/scaffolding templates in ASP.NET MVC
Mar 1128One of the things people like the most about my ASP.NE MVC 2 Ninja Black Belt Tips video, besides the Bill Cosby sweater, is the tip where I show how to modify the default CodeTemplates that are used in Code Generation in ASP.NET MVC (either version). Eilon mentioned it on an internal mailing list this week so I thought it'd be worth surfacing again in case you haven't heard of this, Dear Reader. Soon, we'll see even more powerful, flexible, and fun ways to customize your own Scaffolding ...
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System.Data.Entity not referenced when using Entity Framework
Jul 1019I started getting a compilation error telling with a message telling me "CS0012: The type 'System.Data.Objects.DataClasses.EntityObject' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'". This really confused me since the solution built fine but the error only occurred at run time. Obviously, it is all about adding a reference to System.Data.Entity to my Web project righ...
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Entity Framework MetadataException: Unable to load the specified metadata resource
Jun 1024I got a "System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation" error with a description of "System.Data.MetadataException: Unable to load the specified metadata resource. at System.Data.Metadata.Edm.MetadataArtifactLoaderCompositeResource.LoadResources". This occurred when I was trying to move my Models out of my main MVC web application assembly. The main web dll is called Web and within that project is a folder called Models that is used to sto...
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