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aws.go
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aws.go
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package main
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/aws/awserr"
"time"
)
func AwsS3ListBuckets() (error, []string) {
sess, err := session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
})
svc := s3.New(sess)
req, err := svc.ListBuckets(nil)
if err != nil {
return err, nil
}
bucketsList := make([]string, len(req.Buckets))
for i, b := range req.Buckets {
bucketsList[i] = *b.Name
}
return err, bucketsList
}
func AwsS3ListObjects(bucketName string) (error, []string) {
var objectsList []string
sess, err := session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
})
svc := s3.New(sess)
err = svc.ListObjectsV2Pages(&s3.ListObjectsV2Input{
Bucket: aws.String(bucketName),
}, func(p *s3.ListObjectsV2Output, last bool) (shouldContinue bool) {
objectsListPage := make([]string, len(p.Contents))
for i, obj := range p.Contents {
objectsListPage[i] = *obj.Key
}
objectsList = append(objectsList, objectsListPage...)
return !last
})
if err != nil {
return err, objectsList
}
return err, objectsList
}
func AwsS3PresignObjectGet(bucketName, bucketKey string) (error, string) {
sess, err := session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
})
svc := s3.New(sess)
req, _ := svc.GetObjectRequest(&s3.GetObjectInput{
Bucket: aws.String(bucketName),
Key: aws.String(bucketKey),
})
urlStr, err := req.Presign(signUrlValidMin * time.Minute)
if err != nil {
return err, ""
}
return err, urlStr
}
func AwsCheckBucketExist(bucketName string) (error, bool) {
sess, err := session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
})
svc := s3.New(sess)
_, err = svc.HeadBucket(&s3.HeadBucketInput{
Bucket: aws.String(bucketName),
})
if err != nil {
aerr, ok := err.(awserr.Error)
if (ok && aerr.Code() == s3.ErrCodeNoSuchBucket || aerr.Code() == "NotFound") {
return nil, false
}
return err, false
}
return err, true
}
func checkAllAwsBuckets(buckets []string) (error, []string) {
var verifiedBuckets []string
var bucketProblems error
for _,bucket := range buckets {
err, exist := AwsCheckBucketExist(bucket)
if err != nil {
bucketProblems = err
continue
}
if exist == true {
verifiedBuckets = append(verifiedBuckets, bucket)
}
}
return bucketProblems, verifiedBuckets
}