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.NET Forum / ASP.NET / General / October 2007URL Rewriting for certain file types
Hi, I've implemented a very simple URL rewriter using an HttpModule. It simply intercepts the url, looks it up in a local config table and redirects the browser to a different URL. Of course, this only works for files with extensions that cause them to be processed by ASP.NET. It doesn't work for file types server by IIS only, e.g. ".jpg". I believe I can change the machine.config to make "jpg" files go through ASP.NET but what if I install this app on a "hosted" site where I can't make changes to the machine.config. Is there any other way to make this happen? Preferably I also want it to be limited to files in specific folder i.e. /special/my.jpg will redirect but /images/logo.jpg behaves as normal (to keep up performance). Thanks! You can always use a work around using "downloader" approach. Instead of giving out the direct link to the document. Have it like that http://www.mysite.com/downloader.aspx?file=my.jpg Then your downloader.aspx will do what it needs to do, figure out where my.jpg is residing and the use Response.WriteFile to output file to browser. The file my.jpg might not even be available through direct download. George. > Hi, > I've implemented a very simple URL rewriter using an HttpModule. It simply [quoted text clipped - 16 lines] > > Thanks! Unfortunately I can't implement it that way because the requests are coming from external systems. They don't want to implement a special format just for this app. It has to be: http://www.site.com/special/aaa.jpg http://www.site.com/special/bbb.jpg etc. Thanks. > You can always use a work around using "downloader" approach. > Instead of giving out the direct link to the document. Have it like that [quoted text clipped - 28 lines] > > > > Thanks! Then you do not have a choice. Except on new IIS 7.0, I believe with IIS 7 you can route any HttpRequest through ASP.NET George > Unfortunately I can't implement it that way because the requests are > coming [quoted text clipped - 49 lines] >> > >> > Thanks! Thanks for George's input. Hi BillAtWork, As for all the web document types(the extensions) in ASP.NET web application, IIS will do the judgement first. That means, if the certain document extension is not redirected to ASP.NET isapi, ASP.NET won't have the opportunity to process it. So for our custom ASP.NET httphandler or httpmodule that want to process a file type(orignially managed by IIS statically), you have to first redirect it to ASP.NET isapi extension in IIS virtual directory extension. Sincerely, Steven Cheng Microsoft MSDN Online Support Lead This posting is provided "AS IS" with no warranties, and confers no rights. -------------------- >From: "George Ter-Saakov" <gt-nsp@cardone.com> >Subject: Re: URL Rewriting for certain file types >Date: Thu, 25 Oct 2007 13:05:54 -0400 >Then you do not have a choice. >Except on new IIS 7.0, I believe with IIS 7 you can route any HttpRequest [quoted text clipped - 55 lines] >>> > >>> > Thanks! Hi, Thanks for all the advice. I did know about the IIS Application Mappings and I found a hosting service who will add the required mappings to a hosted site. Thanks. > Thanks for George's input. > [quoted text clipped - 83 lines] > >>> > > >>> > Thanks! Thanks for your reply, This is good news. It is really important that you can can control the application mapping or someother setting in IIS if you will use some custom handler(intercept some custom extensions). Good luck! Sincerely, Steven Cheng Microsoft MSDN Online Support Lead This posting is provided "AS IS" with no warranties, and confers no rights. ----------------------------------------------------- >Subject: Re: URL Rewriting for certain file types >Date: Fri, 26 Oct 2007 06:04:01 -0700 >Hi, >Thanks for all the advice. I did know about the IIS Application Mappings and [quoted text clipped - 89 lines] >> >>> > >> >>> > Thanks!
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