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opentelemetry_prot.c
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Fluent Bit
* ==========
* Copyright (C) 2015-2024 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_input_plugin.h>
#include <fluent-bit/flb_version.h>
#include <fluent-bit/flb_error.h>
#include <fluent-bit/flb_pack.h>
#include <fluent-bit/flb_time.h>
#include <fluent-bit/flb_gzip.h>
#include <fluent-bit/flb_snappy.h>
#include <fluent-bit/flb_mp.h>
#include <fluent-bit/flb_log_event_encoder.h>
#include <monkey/monkey.h>
#include <fluent-bit/http_server/flb_http_server.h>
#include <monkey/mk_core.h>
#include <cmetrics/cmt_decode_opentelemetry.h>
#include <fluent-otel-proto/fluent-otel.h>
#include "opentelemetry.h"
#include "http_conn.h"
#define HTTP_CONTENT_JSON 0
static int json_payload_append_converted_value(
struct flb_log_event_encoder *encoder,
int target_field,
msgpack_object *object);
static int json_payload_append_converted_array(
struct flb_log_event_encoder *encoder,
int target_field,
msgpack_object *object);
static int json_payload_append_converted_kvlist(
struct flb_log_event_encoder *encoder,
int target_field,
msgpack_object *object);
static int json_payload_to_msgpack(struct flb_opentelemetry *ctx,
struct flb_log_event_encoder *encoder,
const char *body,
size_t len);
static int otlp_pack_any_value(msgpack_packer *mp_pck,
Opentelemetry__Proto__Common__V1__AnyValue *body);
static int send_response(struct http_conn *conn, int http_status, char *message)
{
int len;
flb_sds_t out;
size_t sent;
out = flb_sds_create_size(256);
if (!out) {
return -1;
}
if (message) {
len = strlen(message);
}
else {
len = 0;
}
if (http_status == 201) {
flb_sds_printf(&out,
"HTTP/1.1 201 Created \r\n"
"Server: Fluent Bit v%s\r\n"
"Content-Length: 0\r\n\r\n",
FLB_VERSION_STR);
}
else if (http_status == 200) {
flb_sds_printf(&out,
"HTTP/1.1 200 OK\r\n"
"Server: Fluent Bit v%s\r\n"
"Content-Length: 0\r\n\r\n",
FLB_VERSION_STR);
}
else if (http_status == 204) {
flb_sds_printf(&out,
"HTTP/1.1 204 No Content\r\n"
"Server: Fluent Bit v%s\r\n"
"\r\n",
FLB_VERSION_STR);
}
else if (http_status == 400) {
flb_sds_printf(&out,
"HTTP/1.1 400 Bad Request\r\n"
"Server: Fluent Bit v%s\r\n"
"Content-Length: %i\r\n\r\n%s",
FLB_VERSION_STR,
len, message);
}
/* We should check the outcome of this operation */
flb_io_net_write(conn->connection,
(void *) out,
flb_sds_len(out),
&sent);
flb_sds_destroy(out);
return 0;
}
static int process_payload_metrics(struct flb_opentelemetry *ctx, struct http_conn *conn,
flb_sds_t tag,
size_t tag_len,
struct mk_http_session *session,
struct mk_http_request *request)
{
struct cfl_list decoded_contexts;
struct cfl_list *iterator;
struct cmt *context;
size_t offset;
int result;
offset = 0;
result = cmt_decode_opentelemetry_create(&decoded_contexts,
request->data.data,
request->data.len,
&offset);
if (result == CMT_DECODE_OPENTELEMETRY_SUCCESS) {
cfl_list_foreach(iterator, &decoded_contexts) {
context = cfl_list_entry(iterator, struct cmt, _head);
result = flb_input_metrics_append(ctx->ins, tag, tag_len, context);
if (result != 0) {
flb_plg_debug(ctx->ins, "could not ingest metrics context : %d", result);
}
}
cmt_decode_opentelemetry_destroy(&decoded_contexts);
}
return 0;
}
static int process_payload_traces_proto(struct flb_opentelemetry *ctx, struct http_conn *conn,
flb_sds_t tag,
size_t tag_len,
struct mk_http_session *session,
struct mk_http_request *request)
{
struct ctrace *decoded_context;
size_t offset;
int result;
offset = 0;
result = ctr_decode_opentelemetry_create(&decoded_context,
request->data.data,
request->data.len,
&offset);
if (result == 0) {
result = flb_input_trace_append(ctx->ins, tag, tag_len, decoded_context);
ctr_decode_opentelemetry_destroy(decoded_context);
}
return result;
}
static int process_payload_raw_traces(struct flb_opentelemetry *ctx, struct http_conn *conn,
flb_sds_t tag,
size_t tag_len,
struct mk_http_session *session,
struct mk_http_request *request)
{
int ret;
int root_type;
char *out_buf = NULL;
size_t out_size;
msgpack_packer mp_pck;
msgpack_sbuffer mp_sbuf;
msgpack_sbuffer_init(&mp_sbuf);
msgpack_packer_init(&mp_pck, &mp_sbuf, msgpack_sbuffer_write);
msgpack_pack_array(&mp_pck, 2);
flb_pack_time_now(&mp_pck);
/* Check if the incoming payload is a valid JSON message and convert it to msgpack */
ret = flb_pack_json(request->data.data, request->data.len,
&out_buf, &out_size, &root_type, NULL);
if (ret == 0 && root_type == JSMN_OBJECT) {
/* JSON found, pack it msgpack representation */
msgpack_sbuffer_write(&mp_sbuf, out_buf, out_size);
}
else {
/* the content might be a binary payload or invalid JSON */
msgpack_pack_map(&mp_pck, 1);
msgpack_pack_str_with_body(&mp_pck, "trace", 5);
msgpack_pack_str_with_body(&mp_pck, request->data.data, request->data.len);
}
/* release 'out_buf' if it was allocated */
if (out_buf) {
flb_free(out_buf);
}
flb_input_log_append(ctx->ins, tag, tag_len, mp_sbuf.data, mp_sbuf.size);
msgpack_sbuffer_destroy(&mp_sbuf);
return 0;
}
static int process_payload_traces(struct flb_opentelemetry *ctx, struct http_conn *conn,
flb_sds_t tag,
size_t tag_len,
struct mk_http_session *session,
struct mk_http_request *request)
{
int result;
if (ctx->raw_traces) {
result = process_payload_raw_traces(ctx, conn, tag, tag_len, session, request);
}
else {
result = process_payload_traces_proto(ctx, conn, tag, tag_len, session, request);
}
return result;
}
static int otel_pack_string(msgpack_packer *mp_pck, char *str)
{
return msgpack_pack_str_with_body(mp_pck, str, strlen(str));
}
static int otel_pack_bool(msgpack_packer *mp_pck, bool val)
{
if (val) {
return msgpack_pack_true(mp_pck);
}
else {
return msgpack_pack_false(mp_pck);
}
}
static int otel_pack_int(msgpack_packer *mp_pck, int val)
{
return msgpack_pack_int64(mp_pck, val);
}
static int otel_pack_double(msgpack_packer *mp_pck, double val)
{
return msgpack_pack_double(mp_pck, val);
}
static int otel_pack_kvarray(msgpack_packer *mp_pck,
Opentelemetry__Proto__Common__V1__KeyValue **kv_array,
size_t kv_count)
{
int result;
int index;
result = msgpack_pack_map(mp_pck, kv_count);
if (result != 0) {
return result;
}
for (index = 0; index < kv_count && result == 0; index++) {
result = otel_pack_string(mp_pck, kv_array[index]->key);
if(result == 0) {
result = otlp_pack_any_value(mp_pck, kv_array[index]->value);
}
}
return result;
}
static int otel_pack_kvlist(msgpack_packer *mp_pck,
Opentelemetry__Proto__Common__V1__KeyValueList *kv_list)
{
int kv_index;
int ret;
char *key;
Opentelemetry__Proto__Common__V1__AnyValue *value;
ret = msgpack_pack_map(mp_pck, kv_list->n_values);
if (ret != 0) {
return ret;
}
for (kv_index = 0; kv_index < kv_list->n_values && ret == 0; kv_index++) {
key = kv_list->values[kv_index]->key;
value = kv_list->values[kv_index]->value;
ret = otel_pack_string(mp_pck, key);
if(ret == 0) {
ret = otlp_pack_any_value(mp_pck, value);
}
}
return ret;
}
static int otel_pack_array(msgpack_packer *mp_pck,
Opentelemetry__Proto__Common__V1__ArrayValue *array)
{
int ret;
int array_index;
ret = msgpack_pack_array(mp_pck, array->n_values);
if (ret != 0) {
return ret;
}
for (array_index = 0; array_index < array->n_values && ret == 0; array_index++) {
ret = otlp_pack_any_value(mp_pck, array->values[array_index]);
}
return ret;
}
static int otel_pack_bytes(msgpack_packer *mp_pck,
ProtobufCBinaryData bytes)
{
return msgpack_pack_bin_with_body(mp_pck, bytes.data, bytes.len);
}
static int otlp_pack_any_value(msgpack_packer *mp_pck,
Opentelemetry__Proto__Common__V1__AnyValue *body)
{
int result;
result = -2;
switch(body->value_case){
case OPENTELEMETRY__PROTO__COMMON__V1__ANY_VALUE__VALUE_STRING_VALUE:
result = otel_pack_string(mp_pck, body->string_value);
break;
case OPENTELEMETRY__PROTO__COMMON__V1__ANY_VALUE__VALUE_BOOL_VALUE:
result = otel_pack_bool(mp_pck, body->bool_value);
break;
case OPENTELEMETRY__PROTO__COMMON__V1__ANY_VALUE__VALUE_INT_VALUE:
result = otel_pack_int(mp_pck, body->int_value);
break;
case OPENTELEMETRY__PROTO__COMMON__V1__ANY_VALUE__VALUE_DOUBLE_VALUE:
result = otel_pack_double(mp_pck, body->double_value);
break;
case OPENTELEMETRY__PROTO__COMMON__V1__ANY_VALUE__VALUE_ARRAY_VALUE:
result = otel_pack_array(mp_pck, body->array_value);
break;
case OPENTELEMETRY__PROTO__COMMON__V1__ANY_VALUE__VALUE_KVLIST_VALUE:
result = otel_pack_kvlist(mp_pck, body->kvlist_value);
break;
case OPENTELEMETRY__PROTO__COMMON__V1__ANY_VALUE__VALUE_BYTES_VALUE:
result = otel_pack_bytes(mp_pck, body->bytes_value);
break;
default:
break;
}
if (result == -2) {
flb_error("[otel]: invalid value type in pack_any_value");
result = -1;
}
return result;
}
/* https://opentelemetry.io/docs/specs/otel/logs/data-model/#log-and-event-record-definition */
static int otel_pack_v1_metadata(struct flb_opentelemetry *ctx,
msgpack_packer *mp_pck,
struct Opentelemetry__Proto__Logs__V1__LogRecord *log_record,
Opentelemetry__Proto__Resource__V1__Resource *resource,
Opentelemetry__Proto__Common__V1__InstrumentationScope *scope)
{
int ret;
int len;
struct flb_mp_map_header mh;
struct flb_mp_map_header otlp_mh;
flb_mp_map_header_init(&otlp_mh, mp_pck);
len = flb_sds_len(ctx->logs_metadata_key);
/* otlp key start */
flb_mp_map_header_append(&otlp_mh);
msgpack_pack_str(mp_pck, len);
msgpack_pack_str_body(mp_pck, ctx->logs_metadata_key, len);
flb_mp_map_header_init(&mh, mp_pck);
flb_mp_map_header_append(&mh);
msgpack_pack_str(mp_pck, 18);
msgpack_pack_str_body(mp_pck, "observed_timestamp", 18);
msgpack_pack_uint64(mp_pck, log_record->observed_time_unix_nano);
/* Value of 0 indicates unknown or missing timestamp. */
if (log_record->time_unix_nano != 0) {
flb_mp_map_header_append(&mh);
msgpack_pack_str(mp_pck, 9);
msgpack_pack_str_body(mp_pck, "timestamp", 9);
msgpack_pack_uint64(mp_pck, log_record->time_unix_nano);
}
/* https://opentelemetry.io/docs/specs/otel/logs/data-model/#field-severitynumber */
if (log_record->severity_number >= 1 && log_record->severity_number <= 24) {
flb_mp_map_header_append(&mh);
msgpack_pack_str(mp_pck, 15);
msgpack_pack_str_body(mp_pck, "severity_number", 15);
msgpack_pack_uint64(mp_pck, log_record->severity_number);
}
if (log_record->severity_text != NULL && strlen(log_record->severity_text) > 0) {
flb_mp_map_header_append(&mh);
msgpack_pack_str(mp_pck, 13);
msgpack_pack_str_body(mp_pck, "severity_text", 13);
msgpack_pack_str(mp_pck, strlen(log_record->severity_text));
msgpack_pack_str_body(mp_pck, log_record->severity_text, strlen(log_record->severity_text));
}
if (log_record->n_attributes > 0) {
flb_mp_map_header_append(&mh);
msgpack_pack_str(mp_pck, 10);
msgpack_pack_str_body(mp_pck, "attributes", 10);
ret = otel_pack_kvarray(mp_pck,
log_record->attributes,
log_record->n_attributes);
if (ret != 0) {
return ret;
}
}
if (log_record->trace_id.len > 0) {
flb_mp_map_header_append(&mh);
msgpack_pack_str(mp_pck, 8);
msgpack_pack_str_body(mp_pck, "trace_id", 8);
ret = otel_pack_bytes(mp_pck, log_record->trace_id);
if (ret != 0) {
return ret;
}
}
if (log_record->span_id.len > 0) {
flb_mp_map_header_append(&mh);
msgpack_pack_str(mp_pck, 7);
msgpack_pack_str_body(mp_pck, "span_id", 7);
ret = otel_pack_bytes(mp_pck, log_record->span_id);
if (ret != 0) {
return ret;
}
}
flb_mp_map_header_append(&mh);
msgpack_pack_str(mp_pck, 11);
msgpack_pack_str_body(mp_pck, "trace_flags", 11);
msgpack_pack_uint8(mp_pck, (uint8_t) log_record->flags & 0xff);
flb_mp_map_header_end(&mh);
/* otlp key end */
flb_mp_map_header_end(&otlp_mh);
return 0;
}
static int binary_payload_to_msgpack(struct flb_opentelemetry *ctx,
struct flb_log_event_encoder *encoder,
uint8_t *in_buf,
size_t in_size)
{
int ret;
int len;
int resource_logs_index;
int scope_log_index;
int log_record_index;
struct flb_mp_map_header mh;
struct flb_mp_map_header mh_tmp;
struct flb_time tm;
/* record buffer and packer */
msgpack_sbuffer mp_sbuf;
msgpack_packer mp_pck;
/* metadata buffer and packer */
msgpack_sbuffer mp_sbuf_meta;
msgpack_packer mp_pck_meta;
/* OTel proto suff */
Opentelemetry__Proto__Collector__Logs__V1__ExportLogsServiceRequest *input_logs;
Opentelemetry__Proto__Logs__V1__ScopeLogs **scope_logs;
Opentelemetry__Proto__Logs__V1__ScopeLogs *scope_log;
Opentelemetry__Proto__Common__V1__InstrumentationScope *scope;
Opentelemetry__Proto__Logs__V1__ResourceLogs **resource_logs;
Opentelemetry__Proto__Logs__V1__ResourceLogs *resource_log;
Opentelemetry__Proto__Logs__V1__LogRecord **log_records;
Opentelemetry__Proto__Resource__V1__Resource *resource;
/* initialize msgpack buffers */
msgpack_sbuffer_init(&mp_sbuf);
msgpack_packer_init(&mp_pck, &mp_sbuf, msgpack_sbuffer_write);
msgpack_sbuffer_init(&mp_sbuf_meta);
msgpack_packer_init(&mp_pck_meta, &mp_sbuf_meta, msgpack_sbuffer_write);
/* unpack logs from protobuf payload */
input_logs = opentelemetry__proto__collector__logs__v1__export_logs_service_request__unpack(NULL, in_size, in_buf);
if (input_logs == NULL) {
flb_plg_warn(ctx->ins, "failed to unpack input logs from OpenTelemetry payload");
ret = -1;
goto binary_payload_to_msgpack_end;
}
resource_logs = input_logs->resource_logs;
if (resource_logs == NULL) {
flb_plg_warn(ctx->ins, "no resource logs found");
ret = -1;
goto binary_payload_to_msgpack_end;
}
for (resource_logs_index = 0; resource_logs_index < input_logs->n_resource_logs; resource_logs_index++) {
resource_log = resource_logs[resource_logs_index];
resource = resource_log->resource;
scope_logs = resource_log->scope_logs;
if (resource_log->n_scope_logs > 0 && scope_logs == NULL) {
flb_plg_warn(ctx->ins, "no scope logs found");
ret = -1;
goto binary_payload_to_msgpack_end;
}
for (scope_log_index = 0; scope_log_index < resource_log->n_scope_logs; scope_log_index++) {
scope_log = scope_logs[scope_log_index];
log_records = scope_log->log_records;
if (log_records == NULL) {
flb_plg_warn(ctx->ins, "no log records found");
ret = -1;
goto binary_payload_to_msgpack_end;
}
flb_log_event_encoder_group_init(encoder);
/* pack schema (internal) */
ret = flb_log_event_encoder_append_metadata_values(encoder,
FLB_LOG_EVENT_STRING_VALUE("schema", 6),
FLB_LOG_EVENT_STRING_VALUE("otlp", 4),
FLB_LOG_EVENT_STRING_VALUE("resource_id", 11),
FLB_LOG_EVENT_INT64_VALUE(resource_logs_index),
FLB_LOG_EVENT_STRING_VALUE("scope_id", 8),
FLB_LOG_EVENT_INT64_VALUE(scope_log_index));
flb_mp_map_header_init(&mh, &mp_pck);
/* Resource */
flb_mp_map_header_append(&mh);
msgpack_pack_str(&mp_pck, 8);
msgpack_pack_str_body(&mp_pck, "resource", 8);
flb_mp_map_header_init(&mh_tmp, &mp_pck);
/* look for OTel resource attributes */
if (resource->n_attributes > 0 && resource->attributes) {
flb_mp_map_header_append(&mh_tmp);
msgpack_pack_str(&mp_pck, 10);
msgpack_pack_str_body(&mp_pck, "attributes", 10);
ret = otel_pack_kvarray(&mp_pck,
resource->attributes,
resource->n_attributes);
if (ret != 0) {
return ret;
}
}
if (resource->dropped_attributes_count > 0) {
flb_mp_map_header_append(&mh_tmp);
msgpack_pack_str(&mp_pck, 24);
msgpack_pack_str_body(&mp_pck, "dropped_attributes_count", 24);
msgpack_pack_uint64(&mp_pck, resource->dropped_attributes_count);
}
flb_mp_map_header_end(&mh_tmp);
if (resource_log->schema_url) {
flb_mp_map_header_append(&mh);
msgpack_pack_str(&mp_pck, 10);
msgpack_pack_str_body(&mp_pck, "schema_url", 10);
len = strlen(resource_log->schema_url);
msgpack_pack_str(&mp_pck, len);
msgpack_pack_str_body(&mp_pck, resource_log->schema_url, len);
}
/* scope */
flb_mp_map_header_append(&mh);
msgpack_pack_str(&mp_pck, 5);
msgpack_pack_str_body(&mp_pck, "scope", 5);
/* Scope */
scope = scope_log->scope;
if (scope && (scope->name || scope->version || scope->n_attributes > 0)) {
flb_mp_map_header_init(&mh_tmp, &mp_pck);
if (scope->name && strlen(scope->name) > 0) {
flb_mp_map_header_append(&mh_tmp);
msgpack_pack_str(&mp_pck, 4);
msgpack_pack_str_body(&mp_pck, "name", 4);
len = strlen(scope->name);
msgpack_pack_str(&mp_pck, len);
msgpack_pack_str_body(&mp_pck, scope->name, len);
}
if (scope->version && strlen(scope->version) > 0) {
flb_mp_map_header_append(&mh_tmp);
msgpack_pack_str(&mp_pck, 7);
msgpack_pack_str_body(&mp_pck, "version", 7);
len = strlen(scope->version);
msgpack_pack_str(&mp_pck, len);
msgpack_pack_str_body(&mp_pck, scope->version, len);
}
if (scope->n_attributes > 0 && scope->attributes) {
flb_mp_map_header_append(&mh_tmp);
msgpack_pack_str(&mp_pck, 10);
msgpack_pack_str_body(&mp_pck, "attributes", 10);
ret = otel_pack_kvarray(&mp_pck,
scope->attributes,
scope->n_attributes);
if (ret != 0) {
return ret;
}
}
if (scope->dropped_attributes_count > 0) {
flb_mp_map_header_append(&mh_tmp);
msgpack_pack_str(&mp_pck, 24);
msgpack_pack_str_body(&mp_pck, "dropped_attributes_count", 24);
msgpack_pack_uint64(&mp_pck, scope->dropped_attributes_count);
}
flb_mp_map_header_end(&mh_tmp);
}
flb_mp_map_header_end(&mh);
ret = flb_log_event_encoder_set_body_from_raw_msgpack(
encoder,
mp_sbuf.data,
mp_sbuf.size);
if (ret != FLB_EVENT_ENCODER_SUCCESS) {
flb_plg_error(ctx->ins, "could not set group content metadata");
goto binary_payload_to_msgpack_end;
}
flb_log_event_encoder_group_header_end(encoder);
msgpack_sbuffer_clear(&mp_sbuf);
for (log_record_index=0; log_record_index < scope_log->n_log_records; log_record_index++) {
ret = flb_log_event_encoder_begin_record(encoder);
if (ret == FLB_EVENT_ENCODER_SUCCESS) {
if (log_records[log_record_index]->time_unix_nano > 0) {
flb_time_from_uint64(&tm, log_records[log_record_index]->time_unix_nano);
ret = flb_log_event_encoder_set_timestamp(encoder, &tm);
}
else {
ret = flb_log_event_encoder_set_current_timestamp(encoder);
}
}
if (ret == FLB_EVENT_ENCODER_SUCCESS) {
msgpack_sbuffer_clear(&mp_sbuf_meta);
ret = otel_pack_v1_metadata(ctx, &mp_pck_meta, log_records[log_record_index], resource, scope_log->scope);
if (ret != 0) {
flb_plg_error(ctx->ins, "failed to convert log record");
ret = FLB_EVENT_ENCODER_ERROR_SERIALIZATION_FAILURE;
}
else {
ret = flb_log_event_encoder_set_metadata_from_raw_msgpack(
encoder,
mp_sbuf_meta.data,
mp_sbuf_meta.size);
}
msgpack_sbuffer_clear(&mp_sbuf_meta);
}
if (ret == FLB_EVENT_ENCODER_SUCCESS) {
ret = otlp_pack_any_value(
&mp_pck,
log_records[log_record_index]->body);
if (ret != 0) {
flb_plg_error(ctx->ins, "failed to convert log record body");
ret = FLB_EVENT_ENCODER_ERROR_SERIALIZATION_FAILURE;
}
else {
if (log_records[log_record_index]->body->value_case ==
OPENTELEMETRY__PROTO__COMMON__V1__ANY_VALUE__VALUE_KVLIST_VALUE) {
ret = flb_log_event_encoder_set_body_from_raw_msgpack(
encoder,
mp_sbuf.data,
mp_sbuf.size);
}
else {
ret = flb_log_event_encoder_append_body_values(
encoder,
FLB_LOG_EVENT_CSTRING_VALUE("message"),
FLB_LOG_EVENT_MSGPACK_RAW_VALUE(mp_sbuf.data, mp_sbuf.size));
}
}
msgpack_sbuffer_clear(&mp_sbuf);
}
if (ret == FLB_EVENT_ENCODER_SUCCESS) {
ret = flb_log_event_encoder_commit_record(encoder);
}
else {
flb_plg_error(ctx->ins, "marshalling error");
goto binary_payload_to_msgpack_end;
}
}
flb_log_event_encoder_group_end(encoder);
}
}
binary_payload_to_msgpack_end:
msgpack_sbuffer_destroy(&mp_sbuf);
msgpack_sbuffer_destroy(&mp_sbuf_meta);
if (input_logs) {
opentelemetry__proto__collector__logs__v1__export_logs_service_request__free_unpacked(
input_logs, NULL);
}
if (ret != 0) {
return -1;
}
return 0;
}
static int find_map_entry_by_key(msgpack_object_map *map,
char *key,
size_t match_index,
int case_insensitive)
{
size_t match_count;
int result;
int index;
match_count = 0;
for (index = 0 ; index < (int) map->size ; index++) {
if (map->ptr[index].key.type == MSGPACK_OBJECT_STR) {
if (case_insensitive) {
result = strncasecmp(map->ptr[index].key.via.str.ptr,
key,
map->ptr[index].key.via.str.size);
}
else {
result = strncmp(map->ptr[index].key.via.str.ptr,
key,
map->ptr[index].key.via.str.size);
}
if (result == 0) {
if (match_count == match_index) {
return index;
}
match_count++;
}
}
}
return -1;
}
static int json_payload_get_wrapped_value(msgpack_object *wrapper,
msgpack_object **value,
int *type)
{
int internal_type;
msgpack_object *kv_value;
msgpack_object_str *kv_key;
msgpack_object_map *map;
if (wrapper->type != MSGPACK_OBJECT_MAP) {
return -1;
}
map = &wrapper->via.map;
kv_value = NULL;
internal_type = -1;
if (map->size == 1) {
if (map->ptr[0].key.type == MSGPACK_OBJECT_STR) {
kv_value = &map->ptr[0].val;
kv_key = &map->ptr[0].key.via.str;
if (strncasecmp(kv_key->ptr, "stringValue", kv_key->size) == 0 ||
strncasecmp(kv_key->ptr, "string_value", kv_key->size) == 0) {
internal_type = MSGPACK_OBJECT_STR;
}
else if (strncasecmp(kv_key->ptr, "boolValue", kv_key->size) == 0 ||
strncasecmp(kv_key->ptr, "bool_value", kv_key->size) == 0) {
internal_type = MSGPACK_OBJECT_BOOLEAN;
}
else if (strncasecmp(kv_key->ptr, "intValue", kv_key->size) == 0 ||
strncasecmp(kv_key->ptr, "int_value", kv_key->size) == 0) {
internal_type = MSGPACK_OBJECT_POSITIVE_INTEGER;
}
else if (strncasecmp(kv_key->ptr, "doubleValue", kv_key->size) == 0 ||
strncasecmp(kv_key->ptr, "double_value", kv_key->size) == 0) {
internal_type = MSGPACK_OBJECT_FLOAT;
}
else if (strncasecmp(kv_key->ptr, "bytesValue", kv_key->size) == 0 ||
strncasecmp(kv_key->ptr, "bytes_value", kv_key->size) == 0) {
internal_type = MSGPACK_OBJECT_BIN;
}
else if (strncasecmp(kv_key->ptr, "arrayValue", kv_key->size) == 0 ||
strncasecmp(kv_key->ptr, "array_value", kv_key->size) == 0) {
internal_type = MSGPACK_OBJECT_ARRAY;
}
else if (strncasecmp(kv_key->ptr, "kvlistValue", kv_key->size) == 0 ||
strncasecmp(kv_key->ptr, "kvlist_value", kv_key->size) == 0) {
internal_type = MSGPACK_OBJECT_MAP;
}
}
}
if (internal_type != -1) {
if (type != NULL) {
*type = internal_type;
}
if (value != NULL) {
*value = kv_value;
}
if (kv_value->type == MSGPACK_OBJECT_MAP) {
map = &kv_value->via.map;
if (map->size == 1) {
kv_value = &map->ptr[0].val;
kv_key = &map->ptr[0].key.via.str;
if (strncasecmp(kv_key->ptr, "values", kv_key->size) == 0) {
if (value != NULL) {
*value = kv_value;
}
}
else {
return -3;
}
}
}
}
else {
return -2;
}
return 0;
}
static int json_payload_append_unwrapped_value(
struct flb_log_event_encoder *encoder,
int target_field,
msgpack_object *object,
int *encoder_result)
{
char temporary_buffer[33];
int unwrap_value;
int result;
msgpack_object *value;
int type;
result = json_payload_get_wrapped_value(object,
&value,
&type);
if (result == 0) {
unwrap_value = FLB_FALSE;
if (type == MSGPACK_OBJECT_STR) {
unwrap_value = FLB_TRUE;
}
else if (type == MSGPACK_OBJECT_BOOLEAN) {
unwrap_value = FLB_TRUE;
}
else if (type == MSGPACK_OBJECT_POSITIVE_INTEGER) {
if (value->type == MSGPACK_OBJECT_STR) {
memset(temporary_buffer, 0, sizeof(temporary_buffer));
if (value->via.str.size < sizeof(temporary_buffer)) {
strncpy(temporary_buffer,
value->via.str.ptr,
value->via.str.size);
}
else {
strncpy(temporary_buffer,
value->via.str.ptr,
sizeof(temporary_buffer) - 1);
}
result = flb_log_event_encoder_append_int64(
encoder,
target_field,
strtoll(temporary_buffer, NULL, 10));
}
else {
unwrap_value = FLB_TRUE;
}
}
else if (type == MSGPACK_OBJECT_FLOAT) {
unwrap_value = FLB_TRUE;
}
else if (type == MSGPACK_OBJECT_BIN) {
unwrap_value = FLB_TRUE;
}
else if (type == MSGPACK_OBJECT_ARRAY) {
result = json_payload_append_converted_array(encoder,
target_field,
value);
}
else if (type == MSGPACK_OBJECT_MAP) {
result = json_payload_append_converted_kvlist(encoder,
target_field,
value);
}
else {
return -2;
}
if (unwrap_value) {
result = json_payload_append_converted_value(encoder,
target_field,
value);
}
*encoder_result = result;
return 0;
}
else {
return -1;
}
return -1;
}
static int json_payload_append_converted_map(
struct flb_log_event_encoder *encoder,
int target_field,
msgpack_object *object)
{
int encoder_result;
int result;
size_t index;
msgpack_object_map *map;
map = &object->via.map;
result = json_payload_append_unwrapped_value(