APACHE_MODULE(mmap_static, memory mapped file caching, , , no)
APACHE_MODULE(charset_lite, character set translation, , , no)
+APACHE_MODULE(cache, dynamic file caching, , , no)
+APACHE_MODULE(disk_cache, disk caching module, , , no)
APACHE_MODPATH_FINISH
--- /dev/null
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2000 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 "ap_hooks.h"
+
+module MODULE_VAR_EXPORT cache_module;
+
+AP_HOOK_STRUCT(
+ AP_HOOK_LINK(serve_cache)
+ AP_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, ap_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, ap_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(void)
+{
+ ap_register_output_filter("CACHE", cache_filter, AP_FTYPE_HTTP_HEADER);
+}
+
+static const handler_rec cache_handlers[] =
+{
+ {"*/*", cache_handler},
+ {NULL}
+};
+
+module MODULE_VAR_EXPORT 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_handlers, /* handlers */
+ cache_register_hook /* register hooks */
+};
--- /dev/null
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2000 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 "ap_buckets.h"
+#include "ap_hooks.h"
+#include "httpd.h"
+
+typedef struct cache_funcs cache_funcs;
+
+AP_DECLARE_HOOK(int,serve_cache,(request_rec *r));
+AP_DECLARE_HOOK(int,store_cache,(request_rec *r, ap_bucket_brigade *bb, void **cf));
+
--- /dev/null
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2000 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 "mod_cache.h"
+#include "apr_file_io.h"
+#include "apr_strings.h"
+#include "http_config.h"
+#include "http_log.h"
+#include "util_filter.h"
+
+module MODULE_VAR_EXPORT disk_cache_module;
+
+static int disk_serve(request_rec *r)
+{
+ ap_bucket *e;
+ ap_bucket_brigade *bb = ap_brigade_create(r->pool);
+ const char *filename;
+ apr_file_t *fd = NULL;
+ apr_status_t rv;
+ ap_filter_t *f;
+ char str[256];
+ apr_off_t offset = 0;
+
+ filename = ap_server_root_relative(r->pool,
+ apr_pstrcat(r->pool, "proxy", r->uri, NULL));
+ if ((rv = apr_open(&fd, filename, APR_READ,
+ APR_UREAD, r->connection->pool)) != APR_SUCCESS) {
+ return DECLINED;
+ }
+
+ /* skip the cached headers. */
+ do {
+ apr_fgets(str, 256, fd);
+ offset += strlen(str);
+ } while (strcmp(str, CRLF));
+
+ /* If we are serving from the cache, we don't want to try to cache it
+ * again.
+ */
+ for ((f = r->output_filters); (f = f->next);) {
+ if (!strcmp(f->frec->name, "CACHE")) {
+ ap_remove_output_filter(f);
+ }
+ }
+
+ e = ap_bucket_create_file(fd, offset, r->finfo.size);
+
+ AP_BRIGADE_INSERT_HEAD(bb, e);
+ e = ap_bucket_create_eos();
+ AP_BRIGADE_INSERT_TAIL(bb, e);
+
+ ap_pass_brigade(r->output_filters, bb);
+ return OK;
+}
+
+typedef struct cache_struct {
+ const char *filename;
+ apr_file_t *fd;
+ int state;
+} cache_struct;
+
+static int disk_cache(request_rec *r, ap_bucket_brigade *bb, void **cf)
+{
+ cache_struct *ctx = *cf;
+ ap_bucket *e;
+
+ if (ctx == NULL) {
+ *cf = ctx = apr_pcalloc(r->pool, sizeof(*ctx));
+ }
+ if (ctx->filename == NULL) {
+ apr_status_t rv;
+ apr_make_dir(ap_server_root_relative(r->pool, "proxy"), APR_UREAD | APR_UWRITE | APR_UEXECUTE | APR_GREAD | APR_GWRITE, r->pool);
+
+ /* currently, we are using the uri as the cache key. This is
+ * probably wrong, but it is much better than a hard-coded filename.
+ */
+ ctx->filename = ap_server_root_relative(r->pool,
+ apr_pstrcat(r->pool, "proxy", r->uri, NULL));
+ if ((rv = apr_open(&ctx->fd, ctx->filename,
+ APR_WRITE | APR_CREATE | APR_TRUNCATE | APR_BUFFERED,
+ APR_UREAD | APR_UWRITE, r->pool)) != APR_SUCCESS) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
+ "Could not create cache file");
+ *cf = NULL;
+ return DECLINED;
+ }
+ }
+ AP_BRIGADE_FOREACH(e, bb) {
+ const char *str;
+ apr_ssize_t length;
+
+ ap_bucket_read(e, &str, &length, 0);
+ apr_write(ctx->fd, str, &length);
+ }
+ if (AP_BUCKET_IS_EOS(AP_BRIGADE_LAST(bb))) {
+ apr_close(ctx->fd);
+ }
+ return OK;
+}
+
+static void disk_cache_register_hook(void)
+{
+ ap_hook_store_cache(disk_cache, NULL, NULL, AP_HOOK_MIDDLE);
+ ap_hook_serve_cache(disk_serve, NULL, NULL, AP_HOOK_MIDDLE);
+}
+
+module MODULE_VAR_EXPORT disk_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 */
+ NULL, /* handlers */
+ disk_cache_register_hook /* register hooks */
+};
projects / apache / commitdiff