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processor_base64_encoding.go
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/
processor_base64_encoding.go
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// Copyright 2021 iLogtail 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 encoding
import (
"encoding/base64"
"github.com/alibaba/ilogtail/pkg/logger"
"github.com/alibaba/ilogtail/pkg/pipeline"
"github.com/alibaba/ilogtail/pkg/protocol"
)
type ProcessorBase64Encoding struct {
SourceKey string
NewKey string
NoKeyError bool
context pipeline.Context
}
// Init called for init some system resources, like socket, mutex...
func (p *ProcessorBase64Encoding) Init(context pipeline.Context) error {
p.context = context
return nil
}
func (*ProcessorBase64Encoding) Description() string {
return "base64 encoding processor for logtail"
}
func (p *ProcessorBase64Encoding) ProcessLogs(logArray []*protocol.Log) []*protocol.Log {
for _, log := range logArray {
found := false
for _, content := range log.Contents {
if content.Key == p.SourceKey {
newVal := base64.StdEncoding.EncodeToString([]byte(content.Value))
if len(p.NewKey) > 0 {
newContent := &protocol.Log_Content{
Key: p.NewKey,
Value: newVal,
}
log.Contents = append(log.Contents, newContent)
} else {
content.Value = newVal
}
found = true
break
}
}
if !found && p.NoKeyError {
logger.Warning(p.context.GetRuntimeContext(), "BASE64_E_FIND_ALARM", "cannot find key", p.SourceKey)
}
}
return logArray
}
func init() {
pipeline.Processors["processor_base64_encoding"] = func() pipeline.Processor {
return &ProcessorBase64Encoding{}
}
}