I have a third party custom authentication HTTP module. I would like this module to configured to particular action method of a controller. Is this possible?
I know we can configure at folder level by having appropriate web.config at folder level, but I am looking for particular action method of particular controller.
You can't enable a Http module to a particular controller, but you can enable it to a particular request path in web.config. That effectively does the job imo. The following web.config snippet enables "ThirdParty.HttpModule" only for request that match the "yourController" path. This should work with MVC, WebForms, and generic handlers as well.
<location path="yourController" inheritInChildApplications="false">
<system.web>
<httpModules>
<add name="yourModule" type="ThirdParty.HttpModule"/>
</httpModules>
</system.web>
</location>
The inheritInChildApplications part is important, if you have any other applications in subdirectories of this application, because child applications would inherit this configuration by default, and you may not want this module to work in child applications.
More info on MSDN.
I believe you're looking for action filters. There are numerous samples available on the web demonstrating how to set them up.
http://msdn.microsoft.com/en-us/library/dd381609%28v=VS.98%29.aspx
You should use ActionFilters for that. If you really want to use a HttpModule, then the module has to check if it should execute its logic based on the URL. The HttpModule does not know anything about your controllers and vice versa.
