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apachemoduledocument-root

Retrieve the request's document root from a module

I am currently trying to develop a small Apache module which needs to retrieve the request's document root (as defined in the server configuration).

I had a look at httpd.h to see if I could find this information somewhere in the data structures (request_rec, server_rec) but I couldn't find anything like it.

Is it possible to retrieve the request's document root from an Apache module?

Solution

  • What you are looking for is in http_core.h: 

    AP_DECLARE(const char *) ap_document_root(request_rec *r);

    BTW, there's a warning on its usage:

    "Modules shouldn't be worried about the document root. If you need to call this function, then you should ask yourself "why". Modules should be more concerned with r->uri and r->filename." [source]