| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2000-2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * 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. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * 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. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * 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. |
| */ |
| |
| #include "apr_strings.h" |
| #include "ap_config.h" |
| #include "util_filter.h" |
| #include "httpd.h" |
| #include "http_config.h" |
| #include "http_request.h" |
| #include "http_core.h" |
| #include "http_protocol.h" |
| #include "http_log.h" |
| #include "http_main.h" |
| #include "util_script.h" |
| #include "http_core.h" |
| #include "mod_cache.h" |
| #include "apr_hooks.h" |
| |
| module AP_DECLARE_DATA cache_module; |
| |
| APR_HOOK_STRUCT( |
| APR_HOOK_LINK(serve_cache) |
| APR_HOOK_LINK(store_cache) |
| ) |
| |
| AP_IMPLEMENT_HOOK_RUN_FIRST(int,serve_cache,(request_rec *r),(r),DECLINED) |
| AP_IMPLEMENT_HOOK_RUN_FIRST(int,store_cache,(request_rec *r, apr_bucket_brigade *bb, void **cf), |
| (r, bb, cf),DECLINED) |
| |
| static int cache_handler(request_rec *r) |
| { |
| /* I am sure there is common error checking that belongs in this function, |
| * but I'm not sure what it is. |
| */ |
| return ap_run_serve_cache(r); |
| } |
| |
| typedef struct cache_struct { |
| void *cf; |
| } cache_struct; |
| |
| static int cache_filter(ap_filter_t *f, apr_bucket_brigade *bb) |
| { |
| cache_struct *ctx = f->ctx; |
| |
| if (ctx == NULL) { |
| f->ctx = ctx = apr_pcalloc(f->r->pool, sizeof(*ctx)); |
| } |
| |
| ap_run_store_cache(f->r, bb, &ctx->cf); |
| ap_pass_brigade(f->next, bb); |
| return APR_SUCCESS; |
| } |
| |
| static void cache_register_hook(apr_pool_t *p) |
| { |
| ap_hook_handler(cache_handler, NULL, NULL, APR_HOOK_MIDDLE); |
| ap_register_output_filter("CACHE", cache_filter, AP_FTYPE_HTTP_HEADER); |
| } |
| |
| module AP_DECLARE_DATA cache_module = { |
| STANDARD20_MODULE_STUFF, |
| NULL, /* create per-directory config structure */ |
| NULL, /* merge per-directory config structures */ |
| NULL, /* create per-server config structure */ |
| NULL, /* merge per-server config structures */ |
| NULL, /* command apr_table_t */ |
| cache_register_hook /* register hooks */ |
| }; |