Re: Custom HttpHandler and Server.Transfer

Steven -
RewritePath won't work. My custom handler is associated with an
extension that does not require the actual files to be present. So I
rewrite the path, but there is no page there, so an empty file is
getting returned. I don't see my custom handler getting invoked on the
RewritePath call, but I have not had the chance to digg too deeply
into this.

-Bryan

On Wed, 28 Dec 2005 01:25:09 GMT, stcheng@xxxxxxxxxxxxxxxxxxxx (Steven
Cheng[MSFT]) wrote:

>Hi Bryan,
>
>Of course Context.RewritePath is a serverside operation which change the
>server side processing path for the current request. No roundtrip to client
>(the browser's address bar will remain the original one....). Usuallly it
>is used for Url Rewriting in asp.net application (to provide static look
>url which is search engine friendly...). Here is a article discuss this:
>
>#URL Rewriting in ASP.NET
>http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnaspp/html
>/urlrewriting.asp
>
>Regards,
>
>Steven Cheng
>Microsoft Online Support
>
>Get Secure! www.microsoft.com/security
>(This posting is provided "AS IS", with no warranties, and confers no
>rights.)
>
>--------------------
>| From: bryan@xxxxxxxxxxxxxxxxx
>| Subject: Re: Custom HttpHandler and Server.Transfer
>| Date: Tue, 27 Dec 2005 07:37:55 -0600
>| Message-ID: <6pg2r15c20o9t1bp1a26fudbft5onmv6t6@xxxxxxx>
>| References: <6acpq1h5lhpljps8k1u1vhuicadj5s5crg@xxxxxxx>
><bBKS58cCGHA.3992@xxxxxxxxxxxxxxxxxxxxx>
><e510r11pfkrbpl9me3fsrgm4u3ut9g7ksv@xxxxxxx>
><NujKeXqCGHA.1424@xxxxxxxxxxxxxxxxxxxxx>
>| X-Newsreader: Forte Agent 3.1/32.783
>| MIME-Version: 1.0
>| Content-Type: text/plain; charset=us-ascii
>| Content-Transfer-Encoding: 7bit
>| Newsgroups: microsoft.public.dotnet.framework.aspnet
>| NNTP-Posting-Host: adsl-68-253-212-158.dsl.emhril.ameritech.net
>68.253.212.158
>| Lines: 1
>| Path: TK2MSFTNGXA02.phx.gbl!TK2MSFTNGP08.phx.gbl!tk2msftngp13.phx.gbl
>| Xref: TK2MSFTNGXA02.phx.gbl
>microsoft.public.dotnet.framework.aspnet:367136
>| X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
>|
>| Steven-
>| Will rewrite path cause the transfer to handled entirely on the
>| server, or will it still cause anther round trip to the client and
>| back?
>|
>| Thanks again for all the help.
>|
>| Cheers,
>| Bryan
>|
>| On Tue, 27 Dec 2005 05:24:45 GMT, stcheng@xxxxxxxxxxxxxxxxxxxx (Steven
>| Cheng[MSFT]) wrote:
>|
>| >Hi Bryan,
>| >
>| >Thanks for your response. I've just performed some further test
>according
>| >to your scenario, I did reproduce the problem you encountered, and after
>| >some further research, it seems due to the HttpServerUtility.Transfer
>| >methods only addressing transfer to another Page handler, I've check the
>| >related code and found that when the runtime found the target handler is
>| >not a page hanlder, it'll throw exception....
>| >
>| >So far, in addition to use Response.Redirect, you can also have a look
>at
>| >the HttpContext.RewritePath method which can help forward the internal
>| >request to another resource in same application,e.g:
>| >
>| > if(context.Request.QueryString["transfer"] != null)
>| > {
>| > context.RewritePath("test.sh?id=aa&test=bb&asp=111");
>| > }
>| >
>| >Thanks & Regards,
>| >
>| >Steven Cheng
>| >Microsoft Online Support
>| >
>| >Get Secure! www.microsoft.com/security
>| >(This posting is provided "AS IS", with no warranties, and confers no
>| >rights.)
>| >
>| >
>| >--------------------
>| >| From: bryan@xxxxxxxxxxxxxxxxx
>| >| Subject: Re: Custom HttpHandler and Server.Transfer
>| >| Date: Mon, 26 Dec 2005 08:59:31 -0600
>| >| Message-ID: <e510r11pfkrbpl9me3fsrgm4u3ut9g7ksv@xxxxxxx>
>| >| References: <6acpq1h5lhpljps8k1u1vhuicadj5s5crg@xxxxxxx>
>| ><bBKS58cCGHA.3992@xxxxxxxxxxxxxxxxxxxxx>
>| >| X-Newsreader: Forte Agent 3.1/32.783
>| >| MIME-Version: 1.0
>| >| Content-Type: text/plain; charset=us-ascii
>| >| Content-Transfer-Encoding: 7bit
>| >| Newsgroups: microsoft.public.dotnet.framework.aspnet
>| >| NNTP-Posting-Host: adsl-68-253-212-158.dsl.emhril.ameritech.net
>| >68.253.212.158
>| >| Lines: 1
>| >| Path: TK2MSFTNGXA02.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTNGP14.phx.gbl
>| >| Xref: TK2MSFTNGXA02.phx.gbl
>| >microsoft.public.dotnet.framework.aspnet:367058
>| >| X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
>| >|
>| >| Steven -
>| >| Thanks for the reply. The target of the Transfer is another page in
>| >| the same app that should be handled by the same custom handler. The
>| >| custom extension is set so that the handler gets invoked even if the
>| >| "pages" are not pesent, and there is in fact no physical page for the
>| >| target (nor is there for the source.)
>| >|
>| >| Cheers,
>| >| Bryan
>| >|
>| >| On Mon, 26 Dec 2005 03:48:16 GMT, stcheng@xxxxxxxxxxxxxxxxxxxx (Steven
>| >| Cheng[MSFT]) wrote:
>| >|
>| >| >Hi Bryan,
>| >| >
>| >| >As for ASP.NET's Server.Transfer method, it can only help forward
>| >request
>| >| >between the pages or urls within the same asp.net webapplcation, we
>can
>| >not
>| >| >use Server.Transfer to direct the current request to a resource in
>| >| >different application or on other server. So what's the url you used
>in
>| >the
>| >| >Server.Transfer ?
>| >| >
>| >| >Regards,
>| >| >
>| >| >Steven Cheng
>| >| >Microsoft Online Support
>| >| >
>| >| >Get Secure! www.microsoft.com/security
>| >| >(This posting is provided "AS IS", with no warranties, and confers no
>| >| >rights.)
>| >| >
>| >| >
>| >| >--------------------
>| >| >| From: bryan@xxxxxxxxxxxxxxxxx
>| >| >| Subject: Custom HttpHandler and Server.Transfer
>| >| >| Date: Fri, 23 Dec 2005 20:27:01 -0600
>| >| >| Message-ID: <6acpq1h5lhpljps8k1u1vhuicadj5s5crg@xxxxxxx>
>| >| >| X-Newsreader: Forte Agent 3.1/32.783
>| >| >| MIME-Version: 1.0
>| >| >| Content-Type: text/plain; charset=us-ascii
>| >| >| Content-Transfer-Encoding: 7bit
>| >| >| Newsgroups: microsoft.public.dotnet.framework.aspnet
>| >| >| NNTP-Posting-Host: adsl-68-253-212-158.dsl.emhril.ameritech.net
>| >| >68.253.212.158
>| >| >| Lines: 1
>| >| >| Path:
>TK2MSFTNGXA02.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTNGP12.phx.gbl
>| >| >| Xref: TK2MSFTNGXA02.phx.gbl
>| >| >microsoft.public.dotnet.framework.aspnet:366884
>| >| >| X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
>| >| >|
>| >| >| I've got a custom HttpHandler to process all requests for a given
>| >| >| extension. It gets invoked OK, but if I try to do a Server.Transfer
>I
>| >| >| get an HttpException. A Response.Redirect works, but I really need
>to
>| >| >| avoid the extra round-trip to the client.
>| >| >|
>| >| >| I've tried Passing the page name, the full URL, and the instance of
>| >| >| the handler class to the Transfer method, but everything gets me the
>| >| >| same error 500.
>| >| >|
>| >| >| Any help would be appreciated.
>| >| >|
>| >| >| Thanks,
>| >| >| Bryan
>| >| >|
>| >|
>|
.

Relevant Pages

  • Re: Custom HttpHandler and Server.Transfer
    ... for pages because pages have handler per URL. ... Steven Cheng ... I don't see my custom handler getting invoked on the ... | RewritePath call, but I have not had the chance to digg too deeply ...
    (microsoft.public.dotnet.framework.aspnet)
  • Re: Custom HttpHandler and Server.Transfer
    ... methods only addressing transfer to another Page handler, ... request to another resource in same application,e.g: ... | Subject: Re: Custom HttpHandler and Server.Transfer ... |>Hi Bryan, ...
    (microsoft.public.dotnet.framework.aspnet)
  • Forms authentication failed for the request
    ... authentication and a custom handler for jpg and gif files so I have the ... the handler by the web config file located in the directory. ... Forms authentication failed for the request. ...
    (microsoft.public.dotnet.framework)
  • Forms authentication failed for the request
    ... authentication and a custom handler for jpg and gif files so I have the ... the handler by the web config file located in the directory. ... Forms authentication failed for the request. ...
    (microsoft.public.dotnet.security)
  • Re: Custom HttpHandler and Server.Transfer
    ... >Hi Bryan, ... >methods only addressing transfer to another Page handler, ... >request to another resource in same application,e.g: ... >| Subject: Re: Custom HttpHandler and Server.Transfer ...
    (microsoft.public.dotnet.framework.aspnet)
Loading