202 lines
5.5 KiB
Go
202 lines
5.5 KiB
Go
// Copyright (c) All respective contributors to the Peridot Project. All rights reserved.
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// Copyright (c) 2021-2022 Rocky Enterprise Software Foundation, Inc. All rights reserved.
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// Copyright (c) 2021-2022 Ctrl IQ, Inc. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors
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// may be used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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package s3
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import (
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"bytes"
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"github.com/aws/aws-sdk-go/aws"
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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/go-git/go-billy/v5"
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"github.com/spf13/viper"
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"io/ioutil"
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"os"
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"peridot.resf.org/peridot/lookaside"
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)
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type Storage struct {
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bucket string
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uploader *s3manager.Uploader
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downloader *s3manager.Downloader
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fs billy.Filesystem
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}
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func New(fs billy.Filesystem) (*Storage, error) {
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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, err := session.NewSession(awsCfg)
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if err != nil {
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return nil, err
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}
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uploader := s3manager.NewUploader(sess)
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downloader := s3manager.NewDownloader(sess)
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return &Storage{
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bucket: viper.GetString("s3-bucket"),
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uploader: uploader,
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downloader: downloader,
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fs: fs,
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}, nil
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}
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func (s *Storage) DownloadObject(objectName string, path string) error {
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f, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
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if err != nil {
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return err
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}
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defer f.Close()
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_, err = s.downloader.Download(
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f,
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&s3.GetObjectInput{
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Bucket: aws.String(s.bucket),
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Key: aws.String(objectName),
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},
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)
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return err
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}
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func (s *Storage) ReadObject(objectName 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(objectName),
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})
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if err != nil {
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return nil, err
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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 *Storage) PutObject(objectName string, filePath string) (*lookaside.UploadInfo, error) {
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f, err := s.fs.Open(filePath)
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if err != nil {
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return nil, err
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}
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info, err := s.uploader.Upload(&s3manager.UploadInput{
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Bucket: aws.String(s.bucket),
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Key: aws.String(objectName),
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Body: f,
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})
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if err != nil {
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return nil, err
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}
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return &lookaside.UploadInfo{
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Location: info.Location,
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VersionID: info.VersionID,
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}, nil
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}
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func (s *Storage) PutObjectBytes(objectName string, content []byte) (*lookaside.UploadInfo, error) {
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buf := bytes.NewBuffer(content)
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info, err := s.uploader.Upload(&s3manager.UploadInput{
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Bucket: aws.String(s.bucket),
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Key: aws.String(objectName),
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Body: buf,
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})
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if err != nil {
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return nil, err
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}
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return &lookaside.UploadInfo{
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Location: info.Location,
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VersionID: info.VersionID,
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}, nil
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}
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func (s *Storage) DeleteObject(objectName string) error {
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_, err := s.uploader.S3.DeleteObject(&s3.DeleteObjectInput{
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Bucket: aws.String(s.bucket),
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Key: aws.String(objectName),
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})
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return err
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}
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func (s *Storage) Write(path string, content []byte) error {
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_, err := s.PutObjectBytes(path, content)
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return err
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}
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func (s *Storage) Read(path string) ([]byte, error) {
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return s.ReadObject(path)
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}
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func (s *Storage) Exists(path string) (bool, error) {
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_, err := s.uploader.S3.HeadObject(&s3.HeadObjectInput{
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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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if awsErr, ok := err.(awserr.Error); ok {
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if awsErr.Code() == "NoSuchKey" {
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return false, nil
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}
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}
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return false, err
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}
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return true, nil
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}
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