/* ==================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2000 The Apache Software Foundation.  All rights
 * reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 *    notice, this list of conditions and the following disclaimer in
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 *    distribution.
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 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
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 * 4. The names "Apache" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
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 * 5. Products derived from this software may not be called "Apache",
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 * ========================================================
 *
 * This software consists of voluntary contributions made by many
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 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * Portions of this software are based upon public domain software
 * originally written at the National Center for Supercomputing Applications,
 * University of Illinois, Urbana-Champaign.
 */

/*
 * mod_confctl.c: Configuration Control (1 level) - Williams
 * 
 */

#include "httpd.h"
#include "http_config.h"
#include "http_core.h"
#include "http_request.h"

module MODULE_VAR_EXPORT config_control_module;

/*
 * basic configuration things
 */

char ccm_info[]="X";  // address is our ID

static int ccm_translate(request_rec *r)
{
    request_rec *rr;
    void *oldinfo;
    char *trialfile;
    char *p;
    FILE *tfile;
    request_rec *parent;
    // don't recurse
    for (parent=r->main;parent;parent=parent->main)
       if (parent->request_config==ccm_info) return DECLINED;
    // mutate r->filename as appropriate
    trialfile=ap_pstrdup(r->pool,r->uri);
    p=strrchr(r->uri,'/');
    if (!p) 
      trialfile=ap_pstrdup(r->pool,"DEBUG/");
    else
      {
      char *tmp;
      *p='\0';
      tmp=ap_pstrdup(r->pool,r->uri);
      *p='/';
      trialfile=ap_pstrcat(r->pool,tmp,"/DEBUG",p,NULL);
      }
// translate that file name
    oldinfo=r->request_config;
    r->request_config=ccm_info;
    rr = ap_sub_req_lookup_uri(trialfile,r);
    r->request_config=oldinfo;
// Test to see if file name is there
    if (tfile=fopen(rr->filename,"r")) 
     {
// yes, use it
     fclose(tfile);
     r->uri=ap_pstrdup(r->pool,trialfile);
     }
// either way, just clean up & continue
    ap_destroy_sub_req(rr);
    return DECLINED;
}


module MODULE_VAR_EXPORT config_control_module =
{
    STANDARD_MODULE_STUFF,
    NULL,			/* initializer */
    NULL,			/* dir config creater */
    NULL,			/* dir merger --- default is to override */
    NULL,
    NULL,   
    NULL, 
    NULL, 
    ccm_translate,		/* filename translation */
    NULL,			/* check_user_id */
    NULL,			/* check auth */
    NULL,			/* check access */
    NULL,			/* type_checker */
    NULL,			/* fixups */
    NULL,			/* logger */
    NULL,			/* header parser */
    NULL,			/* child_init */
    NULL,			/* child_exit */
    NULL			/* post read-request */
};