104 lines
2.6 KiB
Go
104 lines
2.6 KiB
Go
package s3
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import (
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"context"
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"fmt"
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"io"
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"path"
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"strings"
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"github.com/charmbracelet/log"
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storconfig "github.com/krau/SaveAny-Bot/config/storage"
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"github.com/krau/SaveAny-Bot/pkg/enums/ctxkey"
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storenum "github.com/krau/SaveAny-Bot/pkg/enums/storage"
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"github.com/krau/SaveAny-Bot/pkg/s3"
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"github.com/rs/xid"
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)
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type S3 struct {
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config storconfig.S3StorageConfig
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client *s3.Client
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logger *log.Logger
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}
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func (m *S3) Init(ctx context.Context, cfg storconfig.StorageConfig) error {
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s3cfg, ok := cfg.(*storconfig.S3StorageConfig)
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if !ok {
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return fmt.Errorf("failed to cast s3 config")
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}
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if err := s3cfg.Validate(); err != nil {
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return err
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}
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m.config = *s3cfg
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m.logger = log.FromContext(ctx).WithPrefix(fmt.Sprintf("s3[%s]", m.config.Name))
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client, err := s3.NewClient(&s3.Config{
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Endpoint: m.config.Endpoint,
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Region: m.config.Region,
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AccessKeyID: m.config.AccessKeyID,
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SecretAccessKey: m.config.SecretAccessKey,
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BucketName: m.config.BucketName,
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PathStyle: !m.config.VirtualHost,
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})
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if err != nil {
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return fmt.Errorf("failed to create s3 client: %w", err)
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}
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m.client = client
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// Check if bucket exists
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if err := m.client.HeadBucket(ctx); err != nil {
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return fmt.Errorf("bucket %s not accessible: %w", m.config.BucketName, err)
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}
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return nil
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}
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func (m *S3) Type() storenum.StorageType {
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return storenum.S3
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}
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func (m *S3) Name() string {
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return m.config.Name
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}
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func (m *S3) JoinStoragePath(p string) string {
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return strings.TrimPrefix(path.Join(m.config.BasePath, p), "/")
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}
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func (m *S3) Save(ctx context.Context, r io.Reader, storagePath string) error {
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m.logger.Infof("Saving file from reader to %s", storagePath)
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storagePath = m.JoinStoragePath(storagePath)
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ext := path.Ext(storagePath)
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base := strings.TrimSuffix(storagePath, ext)
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candidate := storagePath
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// Unique filename
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for i := 1; m.Exists(ctx, candidate); i++ {
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candidate = fmt.Sprintf("%s_%d%s", base, i, ext)
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if i > 10 {
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m.logger.Errorf("Too many attempts for unique filename: %s", storagePath)
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candidate = fmt.Sprintf("%s_%s%s", base, xid.New().String(), ext)
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break
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}
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}
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// Determine content length
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size := int64(-1)
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if length := ctx.Value(ctxkey.ContentLength); length != nil {
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if l, ok := length.(int64); ok && l > 0 {
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size = l
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}
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}
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err := m.client.Put(ctx, candidate, r, size)
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if err != nil {
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return fmt.Errorf("failed to upload file to S3: %w", err)
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}
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return nil
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}
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func (m *S3) Exists(ctx context.Context, storagePath string) bool {
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m.logger.Debugf("Checking if file exists at %s", storagePath)
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return m.client.Exists(ctx, storagePath)
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}
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