HttpHandler fire only if file doesn't exist

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执念已碎
执念已碎 2021-02-09 09:35

I\'m trying to create a HTTP handler to handle all requests to a folder but I only want it to fire if the files requested don\'t exist (EG: Request comes in for file X, if X exi

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  •  暖寄归人
    2021-02-09 09:55

    If you would prefer to not create an HttpModule, I can think of two hacks:

    1. Use something like mod-rewrite on Apache or II7 rewrite on IIS to allow specific URLs that exist to go through, take anything else and redirect it to your static file. This could be a large list and I would only recommend implementing this hack if you only have a small number of files.
    2. Change your URL structure to support a routing script that can check to see if the file exists and return it when appropriate. This approach will likely affect caching, so please use caution.

    Jacob

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