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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <apr_optional.h>
#include <apr_optional_hooks.h>
#include <apr_strings.h>
#include <apr_cstr.h>
#include <apr_time.h>
#include <apr_want.h>
#include <httpd.h>
#include <http_protocol.h>
#include <http_request.h>
#include <http_log.h>
#include "mod_h2test.h"
static void h2test_hooks(apr_pool_t *pool);
AP_DECLARE_MODULE(h2test) = {
STANDARD20_MODULE_STUFF,
NULL, /* func to create per dir config */
NULL, /* func to merge per dir config */
NULL, /* func to create per server config */
NULL, /* func to merge per server config */
NULL, /* command handlers */
h2test_hooks,
#if defined(AP_MODULE_FLAG_NONE)
AP_MODULE_FLAG_ALWAYS_MERGE
#endif
};
static int h2test_post_config(apr_pool_t *p, apr_pool_t *plog,
apr_pool_t *ptemp, server_rec *s)
{
void *data = NULL;
const char *mod_h2_init_key = "mod_h2test_init_counter";
(void)plog;(void)ptemp;
apr_pool_userdata_get(&data, mod_h2_init_key, s->process->pool);
if ( data == NULL ) {
/* dry run */
apr_pool_userdata_set((const void *)1, mod_h2_init_key,
apr_pool_cleanup_null, s->process->pool);
return APR_SUCCESS;
}
return APR_SUCCESS;
}
static void h2test_child_init(apr_pool_t *pool, server_rec *s)
{
(void)pool;
(void)s;
}
static int h2test_echo_handler(request_rec *r)
{
conn_rec *c = r->connection;
apr_bucket_brigade *bb;
apr_bucket *b;
apr_status_t rv;
char buffer[8192];
const char *ct;
long l;
if (strcmp(r->handler, "h2test-echo")) {
return DECLINED;
}
if (r->method_number != M_GET && r->method_number != M_POST) {
return DECLINED;
}
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, "echo_handler: processing request");
r->status = 200;
r->clength = -1;
r->chunked = 1;
apr_table_unset(r->headers_out, "Content-Length");
/* Discourage content-encodings */
apr_table_unset(r->headers_out, "Content-Encoding");
apr_table_setn(r->subprocess_env, "no-brotli", "1");
apr_table_setn(r->subprocess_env, "no-gzip", "1");
ct = apr_table_get(r->headers_in, "content-type");
ap_set_content_type(r, ct? ct : "application/octet-stream");
bb = apr_brigade_create(r->pool, c->bucket_alloc);
/* copy any request body into the response */
if ((rv = ap_setup_client_block(r, REQUEST_CHUNKED_DECHUNK))) goto cleanup;
if (ap_should_client_block(r)) {
while (0 < (l = ap_get_client_block(r, &buffer[0], sizeof(buffer)))) {
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r,
"echo_handler: copying %ld bytes from request body", l);
rv = apr_brigade_write(bb, NULL, NULL, buffer, l);
if (APR_SUCCESS != rv) goto cleanup;
rv = ap_pass_brigade(r->output_filters, bb);
if (APR_SUCCESS != rv) goto cleanup;
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r,
"echo_handler: passed %ld bytes from request body", l);
}
}
/* we are done */
b = apr_bucket_eos_create(c->bucket_alloc);
APR_BRIGADE_INSERT_TAIL(bb, b);
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, "echo_handler: request read");
if (r->trailers_in && !apr_is_empty_table(r->trailers_in)) {
ap_log_rerror(APLOG_MARK, APLOG_TRACE2, 0, r,
"echo_handler: seeing incoming trailers");
apr_table_setn(r->trailers_out, "h2test-trailers-in",
apr_itoa(r->pool, 1));
}
rv = ap_pass_brigade(r->output_filters, bb);
cleanup:
if (rv == APR_SUCCESS
|| r->status != HTTP_OK
|| c->aborted) {
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, rv, r, "echo_handler: request handled");
return OK;
}
else {
/* no way to know what type of error occurred */
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, rv, r, "h2test_echo_handler failed");
return AP_FILTER_ERROR;
}
return DECLINED;
}
static int h2test_delay_handler(request_rec *r)
{
conn_rec *c = r->connection;
apr_bucket_brigade *bb;
apr_bucket *b;
apr_status_t rv;
char buffer[8192];
int i, chunks = 3;
long l;
apr_time_t delay = 0;
if (strcmp(r->handler, "h2test-delay")) {
return DECLINED;
}
if (r->method_number != M_GET && r->method_number != M_POST) {
return DECLINED;
}
if (r->args) {
rv = apr_cstr_atoi(&i, r->args);
if (APR_SUCCESS == rv) {
delay = apr_time_from_sec(i);
}
}
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, "delay_handler: processing request, %ds delay",
(int)apr_time_sec(delay));
r->status = 200;
r->clength = -1;
r->chunked = 1;
apr_table_unset(r->headers_out, "Content-Length");
/* Discourage content-encodings */
apr_table_unset(r->headers_out, "Content-Encoding");
apr_table_setn(r->subprocess_env, "no-brotli", "1");
apr_table_setn(r->subprocess_env, "no-gzip", "1");
ap_set_content_type(r, "application/octet-stream");
bb = apr_brigade_create(r->pool, c->bucket_alloc);
/* copy any request body into the response */
if ((rv = ap_setup_client_block(r, REQUEST_CHUNKED_DECHUNK))) goto cleanup;
if (ap_should_client_block(r)) {
do {
l = ap_get_client_block(r, &buffer[0], sizeof(buffer));
if (l > 0) {
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r,
"delay_handler: reading %ld bytes from request body", l);
}
} while (l > 0);
if (l < 0) {
return AP_FILTER_ERROR;
}
}
memset(buffer, 0, sizeof(buffer));
l = sizeof(buffer);
for (i = 0; i < chunks; ++i) {
rv = apr_brigade_write(bb, NULL, NULL, buffer, l);
if (APR_SUCCESS != rv) goto cleanup;
rv = ap_pass_brigade(r->output_filters, bb);
if (APR_SUCCESS != rv) goto cleanup;
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r,
"delay_handler: passed %ld bytes as response body", l);
if (delay) {
apr_sleep(delay);
}
}
/* we are done */
b = apr_bucket_eos_create(c->bucket_alloc);
APR_BRIGADE_INSERT_TAIL(bb, b);
rv = ap_pass_brigade(r->output_filters, bb);
apr_brigade_cleanup(bb);
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, rv, r, "delay_handler: response passed");
cleanup:
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, rv, r,
"delay_handler: request cleanup, r->status=%d, aborted=%d",
r->status, c->aborted);
if (rv == APR_SUCCESS
|| r->status != HTTP_OK
|| c->aborted) {
return OK;
}
return AP_FILTER_ERROR;
}
/* Install this module into the apache2 infrastructure.
*/
static void h2test_hooks(apr_pool_t *pool)
{
static const char *const mod_h2[] = { "mod_h2.c", NULL};
ap_log_perror(APLOG_MARK, APLOG_TRACE1, 0, pool, "installing hooks and handlers");
/* Run once after configuration is set, but before mpm children initialize.
*/
ap_hook_post_config(h2test_post_config, mod_h2, NULL, APR_HOOK_MIDDLE);
/* Run once after a child process has been created.
*/
ap_hook_child_init(h2test_child_init, NULL, NULL, APR_HOOK_MIDDLE);
/* test h2 handlers */
ap_hook_handler(h2test_echo_handler, NULL, NULL, APR_HOOK_MIDDLE);
ap_hook_handler(h2test_delay_handler, NULL, NULL, APR_HOOK_MIDDLE);
}
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