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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-25 04:41:26 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-25 04:41:26 +0000
commit7b31d4f4901cdb89a79f2f7de4a6b8bb637b523b (patch)
treefdeb0b5ff80273f95ce61607fc3613dff0b9a235 /modules/http2/h2_alt_svc.c
parentAdding upstream version 2.4.38. (diff)
downloadapache2-upstream.tar.xz
apache2-upstream.zip
Adding upstream version 2.4.59.upstream/2.4.59upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'modules/http2/h2_alt_svc.c')
-rw-r--r--modules/http2/h2_alt_svc.c131
1 files changed, 0 insertions, 131 deletions
diff --git a/modules/http2/h2_alt_svc.c b/modules/http2/h2_alt_svc.c
deleted file mode 100644
index 295a16d..0000000
--- a/modules/http2/h2_alt_svc.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/* 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_strings.h>
-#include <httpd.h>
-#include <http_core.h>
-#include <http_connection.h>
-#include <http_protocol.h>
-#include <http_log.h>
-
-#include "h2_private.h"
-#include "h2_alt_svc.h"
-#include "h2_ctx.h"
-#include "h2_config.h"
-#include "h2_h2.h"
-#include "h2_util.h"
-
-static int h2_alt_svc_handler(request_rec *r);
-
-void h2_alt_svc_register_hooks(void)
-{
- ap_hook_post_read_request(h2_alt_svc_handler, NULL, NULL, APR_HOOK_MIDDLE);
-}
-
-/**
- * Parse an Alt-Svc specifier as described in "HTTP Alternative Services"
- * (https://tools.ietf.org/html/draft-ietf-httpbis-alt-svc-04)
- * with the following changes:
- * - do not percent encode token values
- * - do not use quotation marks
- */
-h2_alt_svc *h2_alt_svc_parse(const char *s, apr_pool_t *pool)
-{
- const char *sep = ap_strchr_c(s, '=');
- if (sep) {
- const char *alpn = apr_pstrmemdup(pool, s, sep - s);
- const char *host = NULL;
- int port = 0;
- s = sep + 1;
- sep = ap_strchr_c(s, ':'); /* mandatory : */
- if (sep) {
- if (sep != s) { /* optional host */
- host = apr_pstrmemdup(pool, s, sep - s);
- }
- s = sep + 1;
- if (*s) { /* must be a port number */
- port = (int)apr_atoi64(s);
- if (port > 0 && port < (0x1 << 16)) {
- h2_alt_svc *as = apr_pcalloc(pool, sizeof(*as));
- as->alpn = alpn;
- as->host = host;
- as->port = port;
- return as;
- }
- }
- }
- }
- return NULL;
-}
-
-#define h2_alt_svc_IDX(list, i) ((h2_alt_svc**)(list)->elts)[i]
-
-static int h2_alt_svc_handler(request_rec *r)
-{
- const h2_config *cfg;
- int i;
-
- if (r->connection->keepalives > 0) {
- /* Only announce Alt-Svc on the first response */
- return DECLINED;
- }
-
- if (h2_ctx_rget(r)) {
- return DECLINED;
- }
-
- cfg = h2_config_sget(r->server);
- if (r->hostname && cfg && cfg->alt_svcs && cfg->alt_svcs->nelts > 0) {
- const char *alt_svc_used = apr_table_get(r->headers_in, "Alt-Svc-Used");
- if (!alt_svc_used) {
- /* We have alt-svcs defined and client is not already using
- * one, announce the services that were configured and match.
- * The security of this connection determines if we allow
- * other host names or ports only.
- */
- const char *alt_svc = "";
- const char *svc_ma = "";
- int secure = h2_h2_is_tls(r->connection);
- int ma = h2_config_geti(cfg, H2_CONF_ALT_SVC_MAX_AGE);
- if (ma >= 0) {
- svc_ma = apr_psprintf(r->pool, "; ma=%d", ma);
- }
- ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(03043)
- "h2_alt_svc: announce %s for %s:%d",
- (secure? "secure" : "insecure"),
- r->hostname, (int)r->server->port);
- for (i = 0; i < cfg->alt_svcs->nelts; ++i) {
- h2_alt_svc *as = h2_alt_svc_IDX(cfg->alt_svcs, i);
- const char *ahost = as->host;
- if (ahost && !apr_strnatcasecmp(ahost, r->hostname)) {
- ahost = NULL;
- }
- if (secure || !ahost) {
- alt_svc = apr_psprintf(r->pool, "%s%s%s=\"%s:%d\"%s",
- alt_svc,
- (*alt_svc? ", " : ""), as->alpn,
- ahost? ahost : "", as->port,
- svc_ma);
- }
- }
- if (*alt_svc) {
- apr_table_setn(r->headers_out, "Alt-Svc", alt_svc);
- }
- }
- }
-
- return DECLINED;
-}