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/*
* Copyright (c) 2017-2022 Cisco and/or its affiliates.
* Licensed 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 <vnet/vnet.h>
#include <vnet/plugin/plugin.h>
#include <http_static/http_static.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vpp/app/version.h>
/* define message IDs */
#include <http_static/http_static.api_enum.h>
#include <http_static/http_static.api_types.h>
#include <vpp/api/types.h>
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
#define REPLY_MSG_ID_BASE hsm->msg_id_base
#include <vlibapi/api_helper_macros.h>
/** \brief Register a builtin GET or POST handler
*/
__clib_export void
http_static_server_register_builtin_handler (void *fp, char *url,
http_req_method_t request_type)
{
hss_main_t *hsm = &hss_main;
uword *p, *builtin_table;
builtin_table = (request_type == HTTP_REQ_GET) ? hsm->get_url_handlers :
hsm->post_url_handlers;
p = hash_get_mem (builtin_table, url);
if (p)
{
clib_warning ("WARNING: attempt to replace handler for %s '%s' ignored",
(request_type == HTTP_REQ_GET) ? "GET" : "POST", url);
return;
}
hash_set_mem (builtin_table, url, (uword) fp);
/*
* Need to update the hash table pointer in http_static_server_main
* in case we just expanded it...
*/
if (request_type == HTTP_REQ_GET)
hsm->get_url_handlers = builtin_table;
else
hsm->post_url_handlers = builtin_table;
}
/** \brief API helper function for vl_api_http_static_enable_t messages
*/
static int
hss_enable_api (u32 fifo_size, u32 cache_limit, u32 prealloc_fifos,
u32 private_segment_size, u8 *www_root, u8 *uri)
{
hss_main_t *hsm = &hss_main;
int rv;
hsm->fifo_size = fifo_size;
hsm->cache_limit = cache_limit;
hsm->prealloc_fifos = prealloc_fifos;
hsm->private_segment_size = private_segment_size;
hsm->www_root = format (0, "%s%c", www_root, 0);
hsm->uri = format (0, "%s%c", uri, 0);
if (vec_len (hsm->www_root) < 2)
return VNET_API_ERROR_INVALID_VALUE;
if (hsm->app_index != ~0)
return VNET_API_ERROR_APP_ALREADY_ATTACHED;
vnet_session_enable_disable (hsm->vlib_main, 1 /* turn on TCP, etc. */);
rv = hss_create (hsm->vlib_main);
switch (rv)
{
case 0:
break;
default:
vec_free (hsm->www_root);
vec_free (hsm->uri);
return VNET_API_ERROR_INIT_FAILED;
}
return 0;
}
/* API message handler */
static void vl_api_http_static_enable_t_handler
(vl_api_http_static_enable_t * mp)
{
vl_api_http_static_enable_reply_t *rmp;
hss_main_t *hsm = &hss_main;
int rv;
mp->uri[ARRAY_LEN (mp->uri) - 1] = 0;
mp->www_root[ARRAY_LEN (mp->www_root) - 1] = 0;
rv =
hss_enable_api (ntohl (mp->fifo_size), ntohl (mp->cache_size_limit),
ntohl (mp->prealloc_fifos),
ntohl (mp->private_segment_size), mp->www_root, mp->uri);
REPLY_MACRO (VL_API_HTTP_STATIC_ENABLE_REPLY);
}
#include <http_static/http_static.api.c>
static clib_error_t *
hss_api_init (vlib_main_t *vm)
{
hss_main_t *hsm = &hss_main;
/* Ask for a correctly-sized block of API message decode slots */
hsm->msg_id_base = setup_message_id_table ();
return 0;
}
VLIB_INIT_FUNCTION (hss_api_init);
VLIB_PLUGIN_REGISTER () =
{
.version = VPP_BUILD_VER,
.description = "HTTP Static Server"
};
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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