mod_rndchunk.c revision 64185f9824e42f21ca7b9ae6c004484215c031a7
/* ====================================================================
* Copyright (c) 1998-2000 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. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Apache Software Foundation
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* 4. The names "Apache Server" 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 names without prior written
* permission of the Apache Software Foundation.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Apache Software Foundation
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* THIS SOFTWARE IS PROVIDED BY THE Apache Software Foundation ``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 and was originally based
* on public domain software written at the National Center for
* Supercomputing Applications, University of Illinois, Urbana-Champaign.
* For more information on the Apache Software Foundation and the Apache HTTP server
* project, please see <http://www.apache.org/>.
*
*/
/*
* This module is intended to be used for testing chunked encoding. It
* generates a whole whack of output using ap_bputc() and ap_bputs(). It
* also exercises start_chunk() and end_chunk() in buff.c. To use it
* you should use a tool like netcat and the src/test/check_chunked
* tool. Add something like this to your access.conf file:
*
* <Location /rndchunk>
* SetHandler rndchunk
* </Location>
*
* Then fake requests such as:
*
* GET /rndchunk?0,1000000 HTTP/1.1
* Host: localhost
*
* The first arg is the random seed, the second is the number of
* "things" to do. You should try a few seeds.
*
* You should also edit main/buff.c and change DEFAULT_BUFSIZE (and
* CHUNK_HEADER_SIZE). Small values are particularly useful for
* finding bugs. Try a few different values.
*
* -djg
*/
#include "httpd.h"
#include "http_protocol.h"
#include "http_config.h"
#include "http_main.h"
#define MAX_SEGMENT 32
#define ONE_WEIGHT (256-32)
static int send_rndchunk(request_rec *r)
{
const char *args;
char *endptr;
unsigned int seed;
unsigned int count;
int i;
char buf[MAX_SEGMENT + 1];
unsigned int len;
r->allowed |= (1 << M_GET);
if (r->method_number != M_GET)
return DECLINED;
r->content_type = "text/html";
ap_send_http_header(r);
if(r->header_only) {
return 0;
}
ap_hard_timeout("send_rndchunk", r);
if (!r->chunked) {
ap_rputs("Not chunked!", r);
ap_kill_timeout(r);
return 0;
}
args = r->args;
if (!args) {
error:
ap_rputs("Must include args! ... of the form <code>?seed,count</code>", r);
ap_kill_timeout(r);
return 0;
}
seed = strtol(args, &endptr, 0);
if (!endptr || *endptr != ',') {
goto error;
}
++endptr;
count = strtol(endptr, &endptr, 0);
srandom(seed);
for (i = 0; i < count; ++i) {
len = random() % (MAX_SEGMENT + ONE_WEIGHT);
if (len >= MAX_SEGMENT) {
ap_rputc((i & 1) ? '0' : '1', r);
}
else if (len == 0) {
/* not a really nice thing to do, but we need to test
* beginning/ending chunks as well
*/
ap_bsetflag(r->connection->client, B_CHUNK, 0);
ap_bsetflag(r->connection->client, B_CHUNK, 1);
}
else {
memset(buf, '2' + len, len);
buf[len] = 0;
ap_rputs(buf, r);
}
}
ap_kill_timeout(r);
return 0;
}
static const handler_rec rndchunk_handlers[] =
{
{"rndchunk", send_rndchunk},
{NULL}
};
module rndchunk_module = {
STANDARD_MODULE_STUFF,
NULL, /* initializer */
NULL, /* dir config creater */
NULL, /* dir merger --- default is to override */
NULL, /* server config */
NULL, /* merge server config */
NULL, /* command ap_table_t */
rndchunk_handlers, /* handlers */
NULL, /* filename translation */
NULL, /* check_user_id */
NULL, /* check auth */
NULL, /* check access */
NULL, /* type_checker */
NULL, /* fixups */
NULL, /* logger */
NULL /* header parser */
};