/
kafkarest.go
81 lines (67 loc) · 2.29 KB
/
kafkarest.go
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// SPDX-License-Identifier: Apache-2.0
/*
Copyright (C) 2023 The Falco 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.
*/
package outputs
import (
"encoding/base64"
"encoding/json"
"fmt"
"log"
"github.com/falcosecurity/falcosidekick/types"
)
// Records are the items inside the request wrapper
type Records struct {
Value string `json:"value"`
}
// KafkaRestPayload is the request wrapper for Kafka Rest
type KafkaRestPayload struct {
Records []Records `json:"records"`
}
// KafkaRestPost posts event the Kafka Rest Proxy
func (c *Client) KafkaRestPost(falcopayload types.FalcoPayload) {
c.Stats.KafkaRest.Add(Total, 1)
var version int
switch c.Config.KafkaRest.Version {
case 2:
version = c.Config.KafkaRest.Version
case 1:
version = c.Config.KafkaRest.Version
default:
version = 2
}
falcoMsg, err := json.Marshal(falcopayload)
if err != nil {
c.Stats.KafkaRest.Add(Error, 1)
c.PromStats.Outputs.With(map[string]string{"destination": "kafkarest", "status": Error}).Inc()
log.Printf("[ERROR] : Kafka Rest - %v - %v\n", "failed to marshalling message", err.Error())
return
}
c.ContentType = fmt.Sprintf("application/vnd.kafka.binary.v%d+json", version)
payload := KafkaRestPayload{
Records: []Records{{
Value: base64.StdEncoding.EncodeToString(falcoMsg),
}},
}
err = c.Post(payload)
if err != nil {
go c.CountMetric(Outputs, 1, []string{"output:kafkarest", "status:error"})
c.Stats.KafkaRest.Add(Error, 1)
c.PromStats.Outputs.With(map[string]string{"destination": "kafkarest", "status": Error}).Inc()
log.Printf("[ERROR] : Kafka Rest - %v\n", err.Error())
return
}
// Setting the success status
go c.CountMetric(Outputs, 1, []string{"output:kafkarest", "status:ok"})
c.Stats.KafkaRest.Add(OK, 1)
c.PromStats.Outputs.With(map[string]string{"destination": "kafkarest", "status": OK}).Inc()
}