117 lines
3.1 KiB
Go
117 lines
3.1 KiB
Go
// Copyright (c) 2021 The Srpmproc Authors
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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package s3
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import (
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"bytes"
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"io/ioutil"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/aws/awserr"
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"github.com/aws/aws-sdk-go/aws/credentials"
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"github.com/aws/aws-sdk-go/aws/session"
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"github.com/aws/aws-sdk-go/service/s3"
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"github.com/aws/aws-sdk-go/service/s3/s3manager"
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"github.com/spf13/viper"
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)
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type S3 struct {
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bucket string
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uploader *s3manager.Uploader
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}
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func New(name string) *S3 {
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awsCfg := &aws.Config{}
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if accessKey := viper.GetString("s3-access-key"); accessKey != "" {
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awsCfg.Credentials = credentials.NewStaticCredentials(accessKey, viper.GetString("s3-secret-key"), "")
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}
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if endpoint := viper.GetString("s3-endpoint"); endpoint != "" {
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awsCfg.Endpoint = aws.String(endpoint)
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}
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if region := viper.GetString("s3-region"); region != "" {
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awsCfg.Region = aws.String(region)
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}
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if disableSsl := viper.GetBool("s3-disable-ssl"); disableSsl {
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awsCfg.DisableSSL = aws.Bool(true)
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}
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if forcePathStyle := viper.GetBool("s3-force-path-style"); forcePathStyle {
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awsCfg.S3ForcePathStyle = aws.Bool(true)
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}
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sess := session.Must(session.NewSession(awsCfg))
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uploader := s3manager.NewUploader(sess)
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return &S3{
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bucket: name,
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uploader: uploader,
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}
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}
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func (s *S3) Write(path string, content []byte) error {
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buf := bytes.NewBuffer(content)
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_, err := s.uploader.Upload(&s3manager.UploadInput{
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Bucket: aws.String(s.bucket),
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Key: aws.String(path),
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Body: buf,
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})
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if err != nil {
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return err
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}
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return nil
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}
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func (s *S3) Read(path string) ([]byte, error) {
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obj, err := s.uploader.S3.GetObject(&s3.GetObjectInput{
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Bucket: aws.String(s.bucket),
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Key: aws.String(path),
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})
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if err != nil {
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s3err, ok := err.(awserr.Error)
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if !ok || s3err.Code() != s3.ErrCodeNoSuchKey {
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return nil, err
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}
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return nil, nil
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}
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body, err := ioutil.ReadAll(obj.Body)
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if err != nil {
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return nil, err
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}
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return body, nil
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}
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func (s *S3) Exists(path string) (bool, error) {
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_, err := s.uploader.S3.GetObject(&s3.GetObjectInput{
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Bucket: aws.String(s.bucket),
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Key: aws.String(path),
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})
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return err == nil, nil
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}
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