Wildcard HttpHandler not handling Static Files - asp.net

I had a look through some of the older questions, but I can't find anything.
I have a Wildcard HttpHandler on my web app which is processing the url and working out if it can do anything with it
If it can't, then the StaticFile Handler should pick it up and just serve it as a static file (like an html file).
The problem is, it's going through the Wildcard handler, then seemingly not going to the StaticFileHander. Is there something I need to do to the Wildcard handler, or in the web config?
This is my web.config:
<add name="Wildcard" path="*" verb="*" type="Rewriter.RewriterHttpModule"
modules="IsapiModule" requireAccess="None" allowPathInfo="false"
preCondition="" responseBufferLimit="4194304" />
<add name="StaticFile" path="*.*" verb="*"
modules="StaticFileModule,DefaultDocumentModule,DirectoryListingModule"
scriptProcessor="%windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll"
resourceType="File" requireAccess="Read" allowPathInfo="false" preCondition=""
responseBufferLimit="4194304" />


Perhaps your HttpHandler should pass off the request to the StaticFileHandler explicitly.


To follow up on what Hunter said, yes, perhaps add this entry to your Web.Config following the first wildcard mapping:
<add verb="*" path="*" type="System.Web.StaticFileHandler" />
Just a thought. Haven't tested this or anything.


Check the application pool pipeline mode. If it is Classic than you have to configure your handlers in the <httpHandlers> section. If it is Integrated you should use the <handlers> section in web.config.

Related

asp.net handler not picking up case sensitive

I have this handler in my web.config:
<add name="handler1" path="*.jpg" verb="*" type="ImageHandler" resourceType="Unspecified" preCondition="integratedMode" />
Problem is the path is case sensitive. I want this handler to also pickup path like *.JPG. Is there any way to make the above line case insensitive?

As a quick fix, you can have a copy of this handler with path="*.JPG"

RadEditor requires a HttpHandler registration in web.config

When I add this code to my aspx ,
<telerik:RadEditor ID="REWelcome" runat="server"
AutoResizeHeight="True" Width="500px" ToolbarMode="Floating">
<Content>
</Content>
<TrackChangesSettings CanAcceptTrackChanges="False"></TrackChangesSettings>
</telerik:RadEditor>
And I got this error message ,
'~/Telerik.Web.UI.WebResource.axd' is missing in web.config.
RadScriptManager requires a
HttpHandler registration in web.config.
How can I solve it ?

In your web.config - add the following to the system.web (omit the system.web, just used to show you level:
<system.web>
<httpHandlers>
<add verb="*" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" validate="false" />
<add verb="*" path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler, Telerik.Web.UI, Culture=neutral, PublicKeyToken=121fae78165ba3d4"></add>
<add verb="*" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler, Telerik.Web.UI, Culture=neutral, PublicKeyToken=121fae78165ba3d4"></add>
</httpHandlers>
The bottom two are not needed gnerally but I am assuming you want the extended features of the editor, like dialogs and spellchecking.
I also add location at the same level as system.web
<location path="Telerik.Web.UI.WebResource.axd">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>

You also have to add the Telerik.Web.UI.dll file in the bin folder of your application.
That worked for me.

These are the handlers needed for RadEditor and RadScriptManager:
<httpHandlers>
<add path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler" verb="*" validate="false"/>
<add path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" validate="false"/>
<add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false"/>
</httpHandlers>
and
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
<validation validateIntegratedModeConfiguration="false"/>
<handlers>
<add name="Telerik_Web_UI_DialogHandler_aspx" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler"/>
<add name="Telerik_Web_UI_SpellCheckHandler_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler"/>
<add name="Telerik_Web_UI_WebResource_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource"/>
</handlers>
</system.webServer>
source: http://www.telerik.com/forums/telerik-web-ui-webresource-axd-is-missing-in-web-config-f25e27e5a5ac

if the error message is like this::
~/Telerik.Web.UI.WebResource.axd' is missing in web.config. RadScriptManager requires a HttpHandler registration in web.config. Please, use the control Smart Tag to add the handler automatically, or see the help for more information: Controls > RadScriptManager
Then you add the following into your web.config file:::
<httpRuntime targetFramework="4.5.2" />
<httpHandlers>
<add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false" />
</httpHandlers>

I fixed it by changing the ASP Application pool from "Integrated" to "Classic" mode. All my configurations were correct, as described in other posts here. This is probably specific to my configuration, but may be worth trying.

I came across this issue while deploying to IIS 7.
You could set the Managed pipeline mode from Integrated to Classic. This indeed solves the problem with behaving IIS 7.5 as old 6.0 (with handler registered in old web.config node), but I wasn’t convinced that to use Telerik’s controls, I should use old type of pipeline.
Our old web.config file registered Telerik’s handler only in old section for IIS 6 (and that sufficed for cassini and IIS 6.0) and not in new section.
So I had to add this piece of xml to web.config :
<system.webServer>
<handlers>
<add name="Telerik.Web.UI.WebResource" path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" />
</handlers>
</system.webServer>

There is a very detailed KB article on this matter including all possible reasons for the error and how to fix it. Please check it out at Error: Web.config registration missing! The Telerik dialogs require a HttpHandler registration in the web.config file.
One of the best solutions is to open the web.config file and replace Telerik.Web.UI.DialogHandler.aspx with Telerik.Web.UI.DialogHandler.axd
<system.web>
<httpHandlers>
<add path="Telerik.Web.UI.DialogHandler.axd" type="Telerik.Web.UI.DialogHandler" verb="*" validate="false"/>
</httpHandlers>
</system.web>
<system.webServer>
<validation validateIntegratedModeConfiguration="false"/>
<handlers>
<remove name="Telerik_Web_UI_DialogHandler_axd"/>
<add name="Telerik_Web_UI_DialogHandler_axd" path="Telerik.Web.UI.DialogHandler.axd" type="Telerik.Web.UI.DialogHandler" verb="*" preCondition="integratedMode"/>
</handlers>
</system.webServer>
and after that to set the RadEditor's DialogHandlerUrl property to "~/Telerik.Web.UI.DialogHandler.axd", i.e.

I got this error today when copying a published copy of a site from one server to another.
I figured that I shouldn't have to modify any scripts or code to get it to work again, after all, the site still worked just fine on its old server it is still being hosted on.
This is what I believe happened:
I copied the site files over, hooked up a site and bindings to it in IIS, and then tried to run it.
I got errors, and was forced to modify file handler bindings, the .net framework version of the app pool, and install new server roles/features to get it to at least produce this error.
I then deleted everything in the folder and re-copied the site files and it started working again.
IIS must have modified my site files in some way that prevented the site from working, and restoring the original code fixed it.
I know this is a very specific set of circumstances, but hopefully if someone else has the same situation some day they can solve it in the same simple way that I did.

Http handler is not getting called in asp.net?

I have website which I opened in Visual web developer express.
In web.config , I have a handler defined B.
<add verb="GET,POST" path="*/faq*" validate="false" type="DefaultRedirectHandler" />
How to specify the location DefaultRedirectHandler which is a dll in this environment?
I created a handler.dll which contains the class B derived from IHttpHandler in bin directory but there are signs it is not used.
Also, I tried
<system.webServer>
<validation validateIntegratedModeConfiguration="false" />
<handlers>
<add name="ASP Wild" path="*" verb="*" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" requireAccess="None" preCondition="classicMode,runtimeVersionv4.0,bitness32" />
<add name="SampleHandler" verb="*"
path="*"
type="DefaultRedirectHandler,handler.dll"
resourceType="Unspecified" />
</handlers>
Is there some log I can look at if this handler is called elsewhere.

When you add your handler you should fully qualify its type. Include the namespace along with your type name.
<httpHandlers>
<add verb="*" path="*"
type="MyHandlerAssembly.With.A.NameSpace.IISHandler1, MyHandlerAssembly" />
</httpHandlers>
How to: Register HTTP Handlers
The assembly your handler is in must either exist in your web application's bin directory or the system assembly cache.
For more details on the configuration for HttpHandler's see the following.
add Element for httpHandlers (ASP.NET Settings Schema)
Keep in mind that there are many ASP.NET handlers added by default and defined by the system machine.config and root web.config (in your .NET library directory). If any of these handlers match your path they could be executed first. If they close the response then your handler may never get executed.
EDIT:
As for debugging what is going on on your server (i.e. what handlers in what order are getting called) you may be interested in checking out Glimpse.

how to set a handler in web.config with IIS7?

I have a handler, on runtime it create a watermark on images from a specific folder. The problem is that it worked, but now it doesn't.
All that I did was to changed the hosting.
My web.config looks like this:
<handler>
<add verb="*" name="ImageWatermarkHandler" type="ImageWatermarkHandler"
path="Pics/*.jpg,Pics/*.png" modules="IsapiModule"
scriptProcessor="C:\Windows\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll"
resourceType="Unspecified" preCondition="integratedMode" />
</handler>
Can you please help me?

Under IIS 7, you have to specify custom http handlers and modules under the configuration/system.webServer/handlers element of your web.config (unlike older IIS versions, where the element is configuration/system.web/httpHandlers).
There's difference between integrated mode (you only need the handlers part) and classic mode(you need both handlers and httpHandlers). For details see the MSDN entry
Edit: At first I haven't noticed the precondition for integrated mode, could it be that the new hosting runs your app in classic mode?

your config file should look like this,
<configuration>
<system.web>
<httpHandlers>
<add verb="*" path="Pics/*.jpg,Pics/*.png" type="ImageWatermarkHandler"/>
</httpHandlers>
</system.web>
<system.webServer>
<handlers>
<add verb="*" path="Pics/*.jpg,Pics/*.png" name="ImageWatermarkHandler" type="ImageWatermarkHandler"/>
</handlers>
<validation validateIntegratedModeConfiguration="false"/>
</system.webServer>
</configuration>
for more information,
http://msdn.microsoft.com/en-us/library/bb515343.aspx

Open Links via HttpHandler

Please help with HttpHandler
There is a HttpHandler that handles links to mysite.ru.
Registered in Web.Config as follows:
<configuration>
<system.web>
<httpHandlers>
<add verb="*" path="mysite.ru" type="App_Code.SyncHttpHandler"/>
</httpHandlers>
</system.web>
</configuration>
Now through the Handler open only references of the form:
mysite.ru
mysite.ru/struct/
mysite.ru/articles/
How to make the handler to intercept and treatment on the links of the form:
mysite.ru/files/images/img.jpg
mysite.ru/files/scripts/script.js
If I write so that you can run any links, including SyncHttpHandler/Google.ru.
And I need to be able to run only links a specific site.
<add verb="*" path="mysite.ru/*.*" type="App_Code.SyncHttpHandler"/> don't work
<add verb="*" path="*.*" type="App_Code.SyncHttpHandler"/> open any links

<httpHandlers>
<add verb="*" path="*.js" validate="false" type="SyncHttpHandler" />
<add verb="*" path="*.jpg" validate="false" type="SyncHttpHandler" />
</httpHandlers>
you can use this.

Typically, IIS process all static files by its own static file handler. So you need to first configure your IIS to pass all files (extensions) under this path to ASP.NET run-time. Exact steps (although similar) will depend upon IIS version - for example, see here for IIS 6.
Next part would be making sure that ASP.NET runtime passes all those requests to your handler. As such, I think that your config should work but if it doesn't then try using wild-cards. For example,
<add verb="*" path="mysite.ru/*.*" type="App_Code.SyncHttpHandler"/>
or perhaps,
<location path="mysite.ru" >
<system.web>
<add verb="*" path="*.*" type="App_Code.SyncHttpHandler"/>
</system.web>
</location>

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