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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Fluent Bit
* ==========
* Copyright (C) 2015-2022 The Fluent Bit Authors
*
* 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 <fluent-bit/flb_info.h>
#include <fluent-bit/flb_output.h>
#include <fluent-bit/flb_utils.h>
#include <fluent-bit/flb_pack.h>
#include <fluent-bit/flb_sds.h>
#include "websocket.h"
#include "websocket_conf.h"
struct flb_out_ws *flb_ws_conf_create(struct flb_output_instance *ins,
struct flb_config *config)
{
int ret;
int ulen;
int io_flags = 0;
char *uri = NULL;
char *tmp_uri = NULL;
const char *tmp;
int idle_interval;
struct flb_upstream *upstream;
struct flb_out_ws *ctx = NULL;
/* Allocate plugin context */
ctx = flb_calloc(1, sizeof(struct flb_out_ws));
if (!ctx) {
flb_errno();
return NULL;
}
ctx->ins = ins;
ret = flb_output_config_map_set(ins, (void *) ctx);
if (ret == -1) {
flb_free(ctx);
return NULL;
}
flb_output_net_default("127.0.0.1", 80, ins);
/* Check if SSL/TLS is enabled */
#ifdef FLB_HAVE_TLS
if (ins->use_tls == FLB_TRUE) {
io_flags = FLB_IO_TLS;
}
else {
io_flags = FLB_IO_TCP;
}
#else
io_flags = FLB_IO_TCP;
#endif
upstream = flb_upstream_create(config, ins->host.name, ins->host.port, io_flags, ins->tls);
if (!upstream) {
flb_free(ctx);
return NULL;
}
/* Output format */
ctx->out_format = FLB_PACK_JSON_FORMAT_NONE;
tmp = flb_output_get_property("format", ins);
if (tmp) {
ret = flb_pack_to_json_format_type(tmp);
if (ret == -1) {
flb_error("[out_ws] unrecognized 'format' option '%s'. Using 'msgpack'", tmp);
}
else {
ctx->out_format = ret;
}
}
/* Date format for JSON output */
ctx->json_date_format = FLB_PACK_JSON_DATE_DOUBLE;
tmp = flb_output_get_property("json_date_format", ins);
if (tmp) {
ret = flb_pack_to_json_date_type(tmp);
if (ret == -1) {
flb_error("[out_ws] unrecognized 'json_date_format' option '%s'. Using 'double'", tmp);
}
else {
ctx->json_date_format = ret;
}
}
if (ins->host.uri) {
uri = flb_strdup(ins->host.uri->full);
}
else {
tmp = flb_output_get_property("uri", ins);
if (tmp) {
uri = flb_strdup(tmp);
}
}
if (!uri) {
uri = flb_strdup("/");
}
else if (uri[0] != '/') {
ulen = strlen(uri);
tmp_uri = flb_malloc(ulen + 2);
tmp_uri[0] = '/';
memcpy(tmp_uri + 1, uri, ulen);
tmp_uri[ulen + 1] = '\0';
flb_free(uri);
uri = tmp_uri;
}
idle_interval = ins->net_setup.keepalive_idle_timeout;
if (idle_interval > 5) {
ctx->idle_interval = idle_interval - 5;
} else if (idle_interval <= 2) {
flb_error("[out_ws] the keepalive timeout value is smaller than 2, which is meaningless! Please set it higher than 10 seconds. Current value will bring disorder for websocket plugin.");
ctx->idle_interval = idle_interval;
} else {
ctx->idle_interval = idle_interval - 2;
}
ctx->u = upstream;
ctx->uri = uri;
ctx->host = ins->host.name;
ctx->port = ins->host.port;
flb_output_upstream_set(ctx->u, ins);
flb_info("[out_ws] we have following parameter %s, %s, %d, %d", ctx->uri, ctx->host, ctx->port, ctx->idle_interval);
return ctx;
}
void flb_ws_conf_destroy(struct flb_out_ws *ctx)
{
flb_info("[out_ws] flb_ws_conf_destroy ");
if (!ctx) {
return;
}
if (ctx->u) {
flb_upstream_destroy(ctx->u);
}
flb_free(ctx->uri);
flb_free(ctx);
}
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