UPDATE: Media module

pkg/storage/s3.go

@@ -0,0 +1,188 @@
+package storage
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/url"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/aws-sdk-go-v2/config"
+	"github.com/aws/aws-sdk-go-v2/credentials"
+	"github.com/aws/aws-sdk-go-v2/service/s3"
+	"github.com/rs/zerolog/log"
+
+	ffconfig "history-api/pkg/config"
+)
+
+type UploadOptions struct {
+	ContentType        string
+	ContentDisposition string
+	Metadata           map[string]string
+}
+
+type MoveOptions struct {
+	Bucket string
+	Key    string
+}
+
+type Storage interface {
+	Upload(ctx context.Context, key string, body io.Reader, size int64, opts UploadOptions) error
+	Move(ctx context.Context, src *MoveOptions, dest *MoveOptions) error
+	PresignUpload(ctx context.Context, key string, expire time.Duration, opts UploadOptions) (string, error)
+	GetURL(ctx context.Context, key string, expire time.Duration) (string, error)
+	Delete(ctx context.Context, key string) error
+	GetMainBucket() string
+	GetTempBucket() string
+}
+
+type s3Storage struct {
+	client     *s3.Client
+	ps         *s3.PresignClient
+	bucket     string
+	tempBucket string
+	endPoint   string
+}
+
+func NewS3Storage() (Storage, error) {
+	accessKey, err := ffconfig.GetConfig("STORAGE_ACCESS_KEY")
+	if err != nil {
+		return nil, err
+	}
+
+	secretAccessKey, err := ffconfig.GetConfig("STORAGE_SECRET_KEY")
+	if err != nil {
+		return nil, err
+	}
+
+	bucketName, err := ffconfig.GetConfig("STORAGE_BUCKET_NAME")
+	if err != nil {
+		return nil, err
+	}
+	tempBucketName, err := ffconfig.GetConfig("STORAGE_BUCKET_TEMP_NAME")
+	if err != nil {
+		return nil, err
+	}
+
+	endpoint, err := ffconfig.GetConfig("STORAGE_ENDPOINT")
+	if err != nil {
+		return nil, err
+	}
+
+	region, err := ffconfig.GetConfig("STORAGE_REGION")
+	if err != nil {
+		return nil, err
+	}
+
+	cfg, err := config.LoadDefaultConfig(context.TODO(),
+		config.WithCredentialsProvider(credentials.NewStaticCredentialsProvider(accessKey, secretAccessKey, "")),
+		config.WithRegion(region),
+	)
+
+	if err != nil {
+		log.Error().Msgf("unable to load AWS SDK config, %v", err)
+		return nil, err
+	}
+
+	client := s3.NewFromConfig(cfg, func(o *s3.Options) {
+		o.BaseEndpoint = aws.String(endpoint)
+		o.UsePathStyle = true
+	})
+
+	return &s3Storage{
+		client:     client,
+		ps:         s3.NewPresignClient(client),
+		bucket:     bucketName,
+		tempBucket: tempBucketName,
+		endPoint:   endpoint,
+	}, nil
+}
+func (s *s3Storage) GetMainBucket() string { return s.bucket }
+func (s *s3Storage) GetTempBucket() string { return s.tempBucket }
+
+func (s *s3Storage) Move(ctx context.Context, src *MoveOptions, dest *MoveOptions) error {
+	copySource := url.PathEscape(fmt.Sprintf("%s/%s", src.Bucket, src.Key))
+
+	_, err := s.client.CopyObject(ctx, &s3.CopyObjectInput{
+		Bucket:     aws.String(dest.Bucket),
+		Key:        aws.String(dest.Key),
+		CopySource: aws.String(copySource),
+	})
+	if err != nil {
+		return fmt.Errorf("failed to copy object: %w", err)
+	}
+
+	_, err = s.client.DeleteObject(ctx, &s3.DeleteObjectInput{
+		Bucket: aws.String(src.Bucket),
+		Key:    aws.String(src.Key),
+	})
+	if err != nil {
+		log.Error().Err(err).Msg("failed to delete source object after copy")
+	}
+
+	return nil
+}
+
+func (s *s3Storage) Upload(ctx context.Context, key string, body io.Reader, size int64, opts UploadOptions) error {
+	input := &s3.PutObjectInput{
+		Bucket: &s.bucket,
+		Key:    &key,
+		Body:   body,
+	}
+
+	if opts.ContentType != "" {
+		input.ContentType = aws.String(opts.ContentType)
+	}
+	if opts.ContentDisposition != "" {
+		input.ContentDisposition = aws.String(opts.ContentDisposition)
+	}
+	if len(opts.Metadata) > 0 {
+		input.Metadata = opts.Metadata
+	}
+
+	_, err := s.client.PutObject(ctx, input)
+	return err
+}
+
+func (s *s3Storage) PresignUpload(ctx context.Context, key string, expire time.Duration, opts UploadOptions) (string, error) {
+	input := &s3.PutObjectInput{
+		Bucket: &s.tempBucket,
+		Key:    &key,
+	}
+
+	if opts.ContentType != "" {
+		input.ContentType = aws.String(opts.ContentType)
+	}
+	if opts.ContentDisposition != "" {
+		input.ContentDisposition = aws.String(opts.ContentDisposition)
+	}
+	if len(opts.Metadata) > 0 {
+		input.Metadata = opts.Metadata
+	}
+
+	req, err := s.ps.PresignPutObject(ctx, input, s3.WithPresignExpires(expire))
+	if err != nil {
+		return "", err
+	}
+	return req.URL, nil
+}
+
+func (s *s3Storage) GetURL(ctx context.Context, key string, expire time.Duration) (string, error) {
+	req, err := s.ps.PresignGetObject(ctx, &s3.GetObjectInput{
+		Bucket: &s.bucket,
+		Key:    &key,
+	}, s3.WithPresignExpires(expire))
+	if err != nil {
+		return "", err
+	}
+	return req.URL, nil
+}
+
+func (s *s3Storage) Delete(ctx context.Context, key string) error {
+	_, err := s.client.DeleteObject(ctx, &s3.DeleteObjectInput{
+		Bucket: &s.bucket,
+		Key:    &key,
+	})
+	return err
+}