Files
neuron/src/utils/http_handler.c
T
2024-01-25 10:07:20 +08:00

106 lines
3.5 KiB
C

/**
* NEURON IIoT System for Industry 4.0
* Copyright (C) 2020-2022 EMQ Technologies Co., Ltd All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include <assert.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <nng/nng.h>
#include <nng/supplemental/http/http.h>
#include "utils/http_handler.h"
#include "utils/log.h"
int neu_http_add_handler(nng_http_server * server,
const struct neu_http_handler *http_handler)
{
nng_http_handler *handler;
int ret = -1;
char method[16] = { 0 };
switch (http_handler->type) {
case NEU_HTTP_HANDLER_FUNCTION:
ret = nng_http_handler_alloc(&handler, http_handler->url,
http_handler->value.handler);
break;
case NEU_HTTP_HANDLER_DIRECTORY:
ret = nng_http_handler_alloc_directory(&handler, http_handler->url,
http_handler->value.path);
break;
case NEU_HTTP_HANDLER_REDIRECT:
ret = nng_http_handler_alloc_redirect(&handler, http_handler->url, 0,
http_handler->value.path);
break;
}
if (ret != 0) {
return -1;
}
switch (http_handler->method) {
case NEU_HTTP_METHOD_GET:
ret = nng_http_handler_set_method(handler, "GET");
strncpy(method, "GET", sizeof(method));
break;
case NEU_HTTP_METHOD_POST:
ret = nng_http_handler_set_method(handler, "POST");
strncpy(method, "POST", sizeof(method));
break;
case NEU_HTTP_METHOD_PUT:
ret = nng_http_handler_set_method(handler, "PUT");
strncpy(method, "PUT", sizeof(method));
break;
case NEU_HTTP_METHOD_DELETE:
ret = nng_http_handler_set_method(handler, "DELETE");
strncpy(method, "DELETE", sizeof(method));
break;
case NEU_HTTP_METHOD_OPTIONS:
ret = nng_http_handler_set_method(handler, "OPTIONS");
strncpy(method, "OPTIONS", sizeof(method));
break;
default:
break;
}
assert(ret == 0);
ret = nng_http_server_add_handler(server, handler);
nlog_info("http add handler, method: %s, url: %s, ret: %d", method,
http_handler->url, ret);
return ret;
}
void neu_http_handle_cors(nng_aio *aio)
{
nng_http_res *res = NULL;
nng_http_res_alloc(&res);
nng_http_res_set_header(res, "Access-Control-Allow-Origin", "*");
nng_http_res_set_header(res, "Access-Control-Allow-Methods",
"POST,GET,PUT,DELETE,OPTIONS");
nng_http_res_set_header(res, "Access-Control-Allow-Headers", "*");
nng_http_res_copy_data(res, " ", strlen(" "));
nng_http_res_set_status(res, NNG_HTTP_STATUS_OK);
nng_aio_set_output(aio, 0, res);
nng_aio_finish(aio, 0);
}