Files
golib/aws/object/object.go
2020-10-02 12:51:23 +02:00

133 lines
3.6 KiB
Go

/*
* MIT License
*
* Copyright (c) 2020 Nicolas JUHEL
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
package object
import (
"bytes"
sdkaws "github.com/aws/aws-sdk-go-v2/aws"
sdksss "github.com/aws/aws-sdk-go-v2/service/s3"
sdktps "github.com/aws/aws-sdk-go-v2/service/s3/types"
"github.com/nabbar/golib/aws/helper"
"github.com/nabbar/golib/errors"
)
func (cli *client) List(continuationToken string) ([]*sdktps.Object, string, int64, errors.Error) {
in := sdksss.ListObjectsV2Input{
Bucket: cli.GetBucketAws(),
}
if continuationToken != "" {
in.ContinuationToken = sdkaws.String(continuationToken)
}
out, err := cli.s3.ListObjectsV2(cli.GetContext(), &in)
if err != nil {
return nil, "", 0, cli.GetError(err)
} else if *out.IsTruncated {
return out.Contents, *out.NextContinuationToken, int64(*out.KeyCount), nil
} else {
return out.Contents, "", int64(*out.KeyCount), nil
}
}
func (cli *client) Get(object string) (*sdksss.GetObjectOutput, errors.Error) {
out, err := cli.s3.GetObject(cli.GetContext(), &sdksss.GetObjectInput{
Bucket: cli.GetBucketAws(),
Key: sdkaws.String(object),
})
if err != nil {
defer func() {
if out != nil && out.Body != nil {
_ = out.Body.Close()
}
}()
return nil, cli.GetError(err)
} else if out.Body == nil {
return nil, helper.ErrorResponse.Error(nil)
} else {
return out, nil
}
}
func (cli *client) Head(object string) (*sdksss.HeadObjectOutput, errors.Error) {
out, e := cli.s3.HeadObject(cli.GetContext(), &sdksss.HeadObjectInput{
Bucket: cli.GetBucketAws(),
Key: sdkaws.String(object),
})
if e != nil {
return nil, cli.GetError(e)
} else if out.ETag == nil {
return nil, helper.ErrorResponse.Error(nil)
} else {
return out, nil
}
}
func (cli *client) Size(object string) (size int64, err errors.Error) {
var (
h *sdksss.HeadObjectOutput
)
if h, err = cli.Head(object); err != nil {
return
} else {
return *h.ContentLength, nil
}
}
func (cli *client) Put(object string, body *bytes.Reader) errors.Error {
out, err := cli.s3.PutObject(cli.GetContext(), &sdksss.PutObjectInput{
Bucket: cli.GetBucketAws(),
Key: sdkaws.String(object),
Body: body,
})
if err != nil {
return cli.GetError(err)
} else if out.ETag == nil {
return helper.ErrorResponse.Error(nil)
}
return nil
}
func (cli *client) Delete(object string) errors.Error {
if _, err := cli.Head(object); err != nil {
return err
}
_, err := cli.s3.DeleteObject(cli.GetContext(), &sdksss.DeleteObjectInput{
Bucket: cli.GetBucketAws(),
Key: sdkaws.String(object),
})
return cli.GetError(err)
}