--- /dev/null
+/* ====================================================================
+ * 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
+ * (zlib functions gz_open and gzwrite)
+ */
+
+/*
+ * mod_bucketeer.c: split buckets whenever we find a control-char
+ *
+ * Written by Ian Holsman (IanH@apache.org)
+ *
+ */
+
+#include "httpd.h"
+#include "http_config.h"
+#include "http_log.h"
+#include "apr_strings.h"
+#include "apr_general.h"
+#include "util_filter.h"
+#include "apr_buckets.h"
+#include "http_request.h"
+
+
+static const char bucketeerFilterName[] = "BUCKETEER";
+module AP_MODULE_DECLARE_DATA bucketeer_module;
+
+typedef struct bucketeer_filter_config_t
+{
+ char bucketdelimter;
+ char flushdelimiter;
+
+} bucketeer_filter_config_t;
+
+
+static void *create_bucketeer_server_config(apr_pool_t *p, server_rec *s)
+{
+ bucketeer_filter_config_t *c = apr_pcalloc(p, sizeof *c);
+
+ c->bucketdelimter = 0x02; /* ^B */
+ c->flushdelimiter = 0x06; /* ^F */
+
+ return c;
+}
+
+
+typedef struct bucketeer_ctx_t
+{
+ apr_bucket_brigade *bb;
+} bucketeer_ctx_t;
+
+static apr_status_t bucketeer_out_filter(ap_filter_t *f,
+ apr_bucket_brigade *bb)
+{
+ apr_bucket *e;
+ request_rec *r = f->r;
+ bucketeer_ctx_t *ctx = f->ctx;
+
+ bucketeer_filter_config_t *c = ap_get_module_config(r->server->module_config,
+ &bucketeer_module);
+
+ /* If we don't have a context, we need to ensure that it is okay to send
+ * the deflated content. If we have a context, that means we've done
+ * this before and we liked it.
+ * This could be not so nice if we always fail. But, if we succeed,
+ * we're in better shape.
+ */
+ if (!ctx) {
+ if (strncmp(r->content_type, "text/", 5)) {
+ ap_remove_output_filter(f);
+ return ap_pass_brigade(f->next, bb);
+ }
+
+ /* We're cool with filtering this. */
+ ctx = f->ctx = apr_pcalloc(f->r->pool, sizeof(*ctx));
+ ctx->bb = apr_brigade_create(f->r->pool);
+ }
+
+ APR_BRIGADE_FOREACH(e, bb) {
+ const char *data;
+ apr_size_t len;
+
+ int done = 0;
+ apr_size_t i;
+ apr_size_t lastpos;
+
+ if (APR_BUCKET_IS_EOS(e)) {
+
+ APR_BUCKET_REMOVE(e);
+ APR_BRIGADE_INSERT_TAIL(ctx->bb, e);
+
+ /* Okay, we've seen the EOS.
+ * Time to pass it along down the chain.
+ */
+ return ap_pass_brigade(f->next, ctx->bb);
+ }
+
+ if (APR_BUCKET_IS_FLUSH(e)) {
+ /*
+ * Ignore flush buckets for the moment..
+ * we decide what to stream
+ */
+ continue;
+ }
+
+ /* read */
+ apr_bucket_read(e, &data, &len, APR_BLOCK_READ);
+ if (len>0) {
+ lastpos=0;
+ for (i=0; i<len;i++) {
+ if ( data[i] == c->flushdelimiter ) {
+ apr_bucket *p;
+ if ( i-lastpos>0) {
+ p = apr_bucket_pool_create(apr_pmemdup( f->r->pool,
+ &data[lastpos],
+ i-lastpos),
+ i-lastpos,
+ f->r->pool);
+ APR_BRIGADE_INSERT_TAIL(ctx->bb,p);
+ }
+ lastpos=i+1;
+
+ p = apr_bucket_flush_create();
+ APR_BRIGADE_INSERT_TAIL(ctx->bb,p);
+
+ }
+ else {
+ if (data[i] == c->bucketdelimter) {
+ apr_bucket *p;
+ if ( i-lastpos>0) {
+ p = apr_bucket_pool_create(apr_pmemdup( f->r->pool,
+ &data[lastpos],
+ i-lastpos),
+ i-lastpos,
+ f->r->pool);
+
+ APR_BRIGADE_INSERT_TAIL(ctx->bb,p);
+ }
+ lastpos=i+1;
+ }
+ }
+ }
+ /* XXX: really should append this to the next 'real' bucket */
+ if ( lastpos < i ) {
+ apr_bucket *p;
+ p = apr_bucket_pool_create(apr_pmemdup( f->r->pool,&data[lastpos],i-lastpos),i-lastpos,f->r->pool);
+ lastpos=i;
+ APR_BRIGADE_INSERT_TAIL(ctx->bb,p);
+ }
+ }
+ }
+
+ return APR_SUCCESS;
+}
+
+static void register_hooks(apr_pool_t * p)
+{
+ ap_register_output_filter(bucketeerFilterName, bucketeer_out_filter,
+ AP_FTYPE_CONTENT-1);
+}
+
+static const command_rec bucketeer_filter_cmds[] = {
+ {NULL}
+};
+
+module AP_MODULE_DECLARE_DATA bucketeer_module = {
+ STANDARD20_MODULE_STUFF,
+ NULL,
+ NULL,
+ create_bucketeer_server_config,
+ NULL,
+ bucketeer_filter_cmds,
+ register_hooks
+};
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