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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 "stackdriver.h"
#include "stackdriver_helper.h"
#include "stackdriver_source_location.h"
typedef enum {
NO_SOURCELOCATION = 1,
SOURCELOCATION_EXISTED = 2
} source_location_status;
void add_source_location_field(flb_sds_t *source_location_file,
int64_t source_location_line,
flb_sds_t *source_location_function,
msgpack_packer *mp_pck)
{
msgpack_pack_str(mp_pck, 14);
msgpack_pack_str_body(mp_pck, "sourceLocation", 14);
msgpack_pack_map(mp_pck, 3);
msgpack_pack_str(mp_pck, SOURCE_LOCATION_FILE_SIZE);
msgpack_pack_str_body(mp_pck, SOURCE_LOCATION_FILE, SOURCE_LOCATION_FILE_SIZE);
msgpack_pack_str(mp_pck, flb_sds_len(*source_location_file));
msgpack_pack_str_body(mp_pck, *source_location_file,
flb_sds_len(*source_location_file));
msgpack_pack_str(mp_pck, SOURCE_LOCATION_LINE_SIZE);
msgpack_pack_str_body(mp_pck, SOURCE_LOCATION_LINE, SOURCE_LOCATION_LINE_SIZE);
msgpack_pack_int64(mp_pck, source_location_line);
msgpack_pack_str(mp_pck, SOURCE_LOCATION_FUNCTION_SIZE);
msgpack_pack_str_body(mp_pck, SOURCE_LOCATION_FUNCTION,
SOURCE_LOCATION_FUNCTION_SIZE);
msgpack_pack_str(mp_pck, flb_sds_len(*source_location_function));
msgpack_pack_str_body(mp_pck, *source_location_function,
flb_sds_len(*source_location_function));
}
/* Return FLB_TRUE if sourceLocation extracted */
int extract_source_location(flb_sds_t *source_location_file,
int64_t *source_location_line,
flb_sds_t *source_location_function,
msgpack_object *obj, int *extra_subfields)
{
source_location_status op_status = NO_SOURCELOCATION;
msgpack_object_kv *p;
msgpack_object_kv *pend;
msgpack_object_kv *tmp_p;
msgpack_object_kv *tmp_pend;
if (obj->via.map.size == 0) {
return FLB_FALSE;
}
p = obj->via.map.ptr;
pend = obj->via.map.ptr + obj->via.map.size;
for (; p < pend && op_status == NO_SOURCELOCATION; ++p) {
if (p->val.type != MSGPACK_OBJECT_MAP
|| p->key.type != MSGPACK_OBJECT_STR
|| !validate_key(p->key, SOURCELOCATION_FIELD_IN_JSON,
SOURCE_LOCATION_SIZE)) {
continue;
}
op_status = SOURCELOCATION_EXISTED;
msgpack_object sub_field = p->val;
tmp_p = sub_field.via.map.ptr;
tmp_pend = sub_field.via.map.ptr + sub_field.via.map.size;
/* Validate the subfields of sourceLocation */
for (; tmp_p < tmp_pend; ++tmp_p) {
if (tmp_p->key.type != MSGPACK_OBJECT_STR) {
continue;
}
if (validate_key(tmp_p->key,
SOURCE_LOCATION_FILE,
SOURCE_LOCATION_FILE_SIZE)) {
try_assign_subfield_str(tmp_p->val, source_location_file);
}
else if (validate_key(tmp_p->key,
SOURCE_LOCATION_FUNCTION,
SOURCE_LOCATION_FUNCTION_SIZE)) {
try_assign_subfield_str(tmp_p->val, source_location_function);
}
else if (validate_key(tmp_p->key,
SOURCE_LOCATION_LINE,
SOURCE_LOCATION_LINE_SIZE)) {
try_assign_subfield_int(tmp_p->val, source_location_line);
}
else {
*extra_subfields += 1;
}
}
}
return op_status == SOURCELOCATION_EXISTED;
}
void pack_extra_source_location_subfields(msgpack_packer *mp_pck,
msgpack_object *source_location,
int extra_subfields) {
msgpack_object_kv *p = source_location->via.map.ptr;
msgpack_object_kv *const pend = source_location->via.map.ptr + source_location->via.map.size;
msgpack_pack_map(mp_pck, extra_subfields);
for (; p < pend; ++p) {
if (validate_key(p->key, SOURCE_LOCATION_FILE, SOURCE_LOCATION_FILE_SIZE)
|| validate_key(p->key, SOURCE_LOCATION_LINE, SOURCE_LOCATION_LINE_SIZE)
|| validate_key(p->key, SOURCE_LOCATION_FUNCTION,
SOURCE_LOCATION_FUNCTION_SIZE)) {
continue;
}
msgpack_pack_object(mp_pck, p->key);
msgpack_pack_object(mp_pck, p->val);
}
}
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