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redact.go
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redact.go
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// Copyright 2019 Google LLC
//
// 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
//
// https://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 main
import (
"context"
"fmt"
"io"
"io/ioutil"
"log"
dlp "cloud.google.com/go/dlp/apiv2"
dlppb "google.golang.org/genproto/googleapis/privacy/dlp/v2"
)
// [START dlp_redact_image]
// redactImage blacks out the identified portions of the input image (with type bytesType)
// and stores the result in outputPath.
func redactImage(w io.Writer, client *dlp.Client, project string, minLikelihood dlppb.Likelihood, infoTypes []string, bytesType dlppb.ByteContentItem_BytesType, inputPath, outputPath string) {
// Convert the info type strings to a list of InfoTypes.
var i []*dlppb.InfoType
for _, it := range infoTypes {
i = append(i, &dlppb.InfoType{Name: it})
}
// Convert the info type strings to a list of types to redact in the image.
var ir []*dlppb.RedactImageRequest_ImageRedactionConfig
for _, it := range infoTypes {
ir = append(ir, &dlppb.RedactImageRequest_ImageRedactionConfig{
Target: &dlppb.RedactImageRequest_ImageRedactionConfig_InfoType{
InfoType: &dlppb.InfoType{Name: it},
},
})
}
// Read the input file.
b, err := ioutil.ReadFile(inputPath)
if err != nil {
log.Fatalf("error reading file: %v", err)
}
// Create a configured request.
req := &dlppb.RedactImageRequest{
Parent: "projects/" + project,
InspectConfig: &dlppb.InspectConfig{
InfoTypes: i,
MinLikelihood: minLikelihood,
},
// The item to analyze.
ByteItem: &dlppb.ByteContentItem{
Type: bytesType,
Data: b,
},
ImageRedactionConfigs: ir,
}
// Send the request.
resp, err := client.RedactImage(context.Background(), req)
if err != nil {
log.Fatal(err)
}
// Write the output file.
if err := ioutil.WriteFile(outputPath, resp.GetRedactedImage(), 0644); err != nil {
log.Fatal(err)
}
fmt.Fprintf(w, "Wrote output to %s", outputPath)
}
// [END dlp_redact_image]