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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.
*/
#ifndef FLB_PARSER_DECODER_H
#define FLB_PARSER_DECODER_H
#include <fluent-bit/flb_info.h>
#include <fluent-bit/flb_sds.h>
#include <fluent-bit/flb_config_format.h>
/* Decoder behavior */
#define FLB_PARSER_DEC_DEFAULT 0 /* results place as separate keys */
#define FLB_PARSER_DEC_AS 1 /* results replace current key/value */
/* Decoder Backend */
#define FLB_PARSER_DEC_JSON 0 /* decode_json() */
#define FLB_PARSER_DEC_ESCAPED 1 /* decode_escaped() */
#define FLB_PARSER_DEC_ESCAPED_UTF8 2 /* decode_escaped_utf8() */
#define FLB_PARSER_DEC_MYSQL_QUOTED 3 /* decode_mysql_quoted() */
/* Decoder actions */
#define FLB_PARSER_ACT_NONE 0
#define FLB_PARSER_ACT_TRY_NEXT 1
#define FLB_PARSER_ACT_DO_NEXT 2
#define FLB_PARSER_DEC_BUF_SIZE 1024*8 /* 8KB */
struct flb_parser_dec_rule {
int type; /* decode_field, decode_field_as */
int backend; /* backend handler: json, escaped */
int action; /* actions: try_next, do_next */
/* Link to flb_parser_dec->rules list head */
struct mk_list _head;
};
struct flb_parser_dec {
flb_sds_t key;
flb_sds_t buffer; /* temporary buffer for decoding work */
int add_extra_keys; /* if type == FLB_PARSER_DEC_DEFAULT, flag is True */
struct mk_list rules; /* list head for decoder key rules */
struct mk_list _head; /* link to parser->decoders */
};
struct mk_list *flb_parser_decoder_list_create(struct flb_cf_section *section);
int flb_parser_decoder_list_destroy(struct mk_list *list);
int flb_parser_decoder_do(struct mk_list *decoders,
const char *in_buf, size_t in_size,
char **out_buf, size_t *out_size);
#endif
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