/
s3-buckets.go
186 lines (152 loc) · 4.14 KB
/
s3-buckets.go
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package resources
import (
"fmt"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/endpoints"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/service/s3/s3iface"
"github.com/aws/aws-sdk-go/service/s3/s3manager"
)
func init() {
register("S3Bucket", ListS3Buckets)
}
type S3Bucket struct {
svc *s3.S3
name string
}
func ListS3Buckets(s *session.Session) ([]Resource, error) {
svc := s3.New(s)
buckets, err := DescribeS3Buckets(svc)
if err != nil {
return nil, err
}
resources := make([]Resource, 0)
for _, name := range buckets {
resources = append(resources, &S3Bucket{
svc: svc,
name: name,
})
}
return resources, nil
}
func DescribeS3Buckets(svc *s3.S3) ([]string, error) {
resp, err := svc.ListBuckets(nil)
if err != nil {
return nil, err
}
buckets := make([]string, 0)
for _, out := range resp.Buckets {
bucketLocationResponse, err := svc.GetBucketLocation(&s3.GetBucketLocationInput{Bucket: out.Name})
if err != nil {
continue
}
location := UnPtrString(bucketLocationResponse.LocationConstraint, endpoints.UsEast1RegionID)
region := UnPtrString(svc.Config.Region, endpoints.UsEast1RegionID)
if location == region {
buckets = append(buckets, *out.Name)
}
}
return buckets, nil
}
func (e *S3Bucket) Remove() error {
_, err := e.svc.DeleteBucketPolicy(&s3.DeleteBucketPolicyInput{
Bucket: &e.name,
})
if err != nil {
return err
}
_, err = e.svc.PutBucketLogging(&s3.PutBucketLoggingInput{
Bucket: &e.name,
BucketLoggingStatus: &s3.BucketLoggingStatus{},
})
if err != nil {
return err
}
err = e.RemoveAllVersions()
if err != nil {
return err
}
err = e.RemoveAllObjects()
if err != nil {
return err
}
_, err = e.svc.DeleteBucket(&s3.DeleteBucketInput{
Bucket: &e.name,
})
return err
}
func (e *S3Bucket) RemoveAllVersions() error {
params := &s3.ListObjectVersionsInput{
Bucket: &e.name,
}
iterator := newS3DeleteVersionListIterator(e.svc, params)
return s3manager.NewBatchDeleteWithClient(e.svc).Delete(aws.BackgroundContext(), iterator)
}
func (e *S3Bucket) RemoveAllObjects() error {
params := &s3.ListObjectsInput{
Bucket: &e.name,
}
iterator := s3manager.NewDeleteListIterator(e.svc, params)
return s3manager.NewBatchDeleteWithClient(e.svc).Delete(aws.BackgroundContext(), iterator)
}
func (e *S3Bucket) String() string {
return fmt.Sprintf("s3://%s", e.name)
}
type s3DeleteVersionListIterator struct {
Bucket *string
Paginator request.Pagination
objects []*s3.ObjectVersion
}
func newS3DeleteVersionListIterator(svc s3iface.S3API, input *s3.ListObjectVersionsInput, opts ...func(*s3DeleteVersionListIterator)) s3manager.BatchDeleteIterator {
iter := &s3DeleteVersionListIterator{
Bucket: input.Bucket,
Paginator: request.Pagination{
NewRequest: func() (*request.Request, error) {
var inCpy *s3.ListObjectVersionsInput
if input != nil {
tmp := *input
inCpy = &tmp
}
req, _ := svc.ListObjectVersionsRequest(inCpy)
return req, nil
},
},
}
for _, opt := range opts {
opt(iter)
}
return iter
}
// Next will use the S3API client to iterate through a list of objects.
func (iter *s3DeleteVersionListIterator) Next() bool {
if len(iter.objects) > 0 {
iter.objects = iter.objects[1:]
}
if len(iter.objects) == 0 && iter.Paginator.Next() {
output := iter.Paginator.Page().(*s3.ListObjectVersionsOutput)
iter.objects = output.Versions
for _, entry := range output.DeleteMarkers {
iter.objects = append(iter.objects, &s3.ObjectVersion{
Key: entry.Key,
VersionId: entry.VersionId,
})
}
}
return len(iter.objects) > 0
}
// Err will return the last known error from Next.
func (iter *s3DeleteVersionListIterator) Err() error {
return iter.Paginator.Err()
}
// DeleteObject will return the current object to be deleted.
func (iter *s3DeleteVersionListIterator) DeleteObject() s3manager.BatchDeleteObject {
return s3manager.BatchDeleteObject{
Object: &s3.DeleteObjectInput{
Bucket: iter.Bucket,
Key: iter.objects[0].Key,
VersionId: iter.objects[0].VersionId,
},
}
}