ae9a71034d
Add HTTP /v1 MVC, TCP send path, groups with server-side member-avatar collage, object-storage upload, and friends/favorites around the architecture-v3 layout. Co-authored-by: Cursor <cursoragent@cursor.com>
110 lines
2.8 KiB
Go
110 lines
2.8 KiB
Go
// Package objectstore talks to S3-compatible object storage (RustFS) via AWS SDK v2.
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package objectstore
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import (
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"context"
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"fmt"
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"strings"
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"time"
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"github.com/aws/aws-sdk-go-v2/aws"
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"github.com/aws/aws-sdk-go-v2/credentials"
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"github.com/aws/aws-sdk-go-v2/service/s3"
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"go.uber.org/zap"
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)
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const (
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defaultRegion = "us-east-1"
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defaultTimeout = 15 * time.Second
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)
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// Store is a RustFS / S3 client. Nil or !Ready means object storage is not configured.
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type Store struct {
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client *s3.Client
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presign *s3.PresignClient
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bucket string
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log *zap.Logger
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}
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// Options configure Open. Empty Endpoint skips the connection.
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type Options struct {
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Endpoint string
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AccessKey string
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SecretKey string
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Bucket string
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Region string
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UseSSL bool
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ChatExpireDays int
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Log *zap.Logger
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}
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func Open(o *Options) (*Store, error) {
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if o == nil || strings.TrimSpace(o.Endpoint) == "" {
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return &Store{}, nil
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}
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host, secure, err := parseEndpoint(o.Endpoint, o.UseSSL)
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if err != nil {
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return nil, err
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}
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bucket := strings.TrimSpace(o.Bucket)
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if bucket == "" {
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bucket = "spark"
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}
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region := strings.TrimSpace(o.Region)
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if region == "" {
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region = defaultRegion
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}
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scheme := "http"
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if secure {
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scheme = "https"
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}
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client := newS3Client(region, scheme+"://"+host, o.AccessKey, o.SecretKey)
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s := &Store{client: client, presign: s3.NewPresignClient(client), bucket: bucket, log: o.Log}
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if s.log == nil {
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s.log = zap.NewNop()
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}
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ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
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defer cancel()
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if err := s.ensureBucket(ctx, region, o.ChatExpireDays); err != nil {
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return nil, err
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}
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return s, nil
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}
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func (s *Store) Ready() bool {
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return s != nil && s.client != nil && s.presign != nil && s.bucket != ""
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}
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func (s *Store) Ping(ctx context.Context) error {
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if !s.Ready() {
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return nil
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}
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_, err := s.client.HeadBucket(ctx, &s3.HeadBucketInput{Bucket: aws.String(s.bucket)})
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return err
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}
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func newS3Client(region, baseURL, access, secret string) *s3.Client {
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return s3.New(s3.Options{
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Region: region,
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Credentials: credentials.NewStaticCredentialsProvider(access, secret, ""),
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BaseEndpoint: aws.String(baseURL),
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UsePathStyle: true,
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RequestChecksumCalculation: aws.RequestChecksumCalculationWhenRequired,
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ResponseChecksumValidation: aws.ResponseChecksumValidationWhenRequired,
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})
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}
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func parseEndpoint(raw string, useSSL bool) (host string, secure bool, err error) {
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raw = strings.TrimSpace(raw)
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switch {
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case raw == "":
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return "", false, fmt.Errorf("objectstore: empty endpoint")
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case strings.HasPrefix(raw, "https://"):
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return strings.TrimPrefix(raw, "https://"), true, nil
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case strings.HasPrefix(raw, "http://"):
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return strings.TrimPrefix(raw, "http://"), false, nil
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default:
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return raw, useSSL, nil
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}
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}
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