Files
OpenFlare/internal/storage/s3.go
T
ryan 9a18bea324 feat(storage): add dynamic storage config and migration
Move storage backend configuration from startup YAML to system_config-backed runtime configuration. Add local, S3-compatible, R2, MinIO, OSS, and WebDAV backend support.

Add a storage migration async task using the existing task dispatch framework. Migration target config is carried in task payload, and maintenance mode is derived from task execution state.

Split upload file management and storage operations, add the admin storage configuration tab, and update migrations and Swagger docs.
2026-06-13 15:31:38 +08:00

123 lines
3.1 KiB
Go

// Copyright 2026 Arctel.net
// SPDX-License-Identifier: Apache-2.0
package storage
import (
"context"
"fmt"
"io"
"strings"
"github.com/aws/aws-sdk-go-v2/aws"
awsconfig "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"
)
type s3Backend struct {
client *s3.Client
bucket string
keyPrefix string
cdnURL string
}
func newS3Backend(ctx context.Context, cfg ObjectConfig) (*s3Backend, error) {
awsCfg, err := awsconfig.LoadDefaultConfig(ctx,
awsconfig.WithRegion(cfg.Region),
awsconfig.WithCredentialsProvider(credentials.NewStaticCredentialsProvider(
cfg.AccessKeyID,
cfg.SecretAccessKey,
"",
)),
)
if err != nil {
return nil, fmt.Errorf("load S3 config: %w", err)
}
client := s3.NewFromConfig(awsCfg, func(options *s3.Options) {
if cfg.Endpoint != "" {
options.BaseEndpoint = aws.String(strings.TrimRight(cfg.Endpoint, "/"))
}
options.UsePathStyle = cfg.PathStyle
})
return &s3Backend{
client: client,
bucket: cfg.Bucket,
keyPrefix: strings.Trim(cfg.KeyPrefix, "/"),
cdnURL: strings.TrimRight(cfg.CDNURL, "/"),
}, nil
}
func newR2Backend(ctx context.Context, cfg ObjectConfig) (*s3Backend, error) {
if cfg.Endpoint == "" {
cfg.Endpoint = fmt.Sprintf("https://%s.r2.cloudflarestorage.com", cfg.AccountID)
}
cfg.Region = "auto"
return newS3Backend(ctx, cfg)
}
func (b *s3Backend) Put(ctx context.Context, key string, body io.Reader, size int64, contentType string) (string, error) {
key = b.key(key)
_, err := b.client.PutObject(ctx, &s3.PutObjectInput{
Bucket: aws.String(b.bucket),
Key: aws.String(key),
Body: body,
ContentLength: aws.Int64(size),
ContentType: aws.String(contentType),
})
if err != nil {
return "", fmt.Errorf("put S3 object: %w", err)
}
return key, nil
}
func (b *s3Backend) Get(ctx context.Context, key string) (*Object, error) {
key = b.key(key)
if b.cdnURL != "" {
return getHTTPObject(ctx, b.cdnURL, key)
}
output, err := b.client.GetObject(ctx, &s3.GetObjectInput{
Bucket: aws.String(b.bucket),
Key: aws.String(key),
})
if err != nil {
return nil, fmt.Errorf("get S3 object: %w", err)
}
contentType := defaultContentType
if output.ContentType != nil {
contentType = *output.ContentType
}
var size int64
if output.ContentLength != nil {
size = *output.ContentLength
}
return &Object{Body: output.Body, ContentLength: size, ContentType: contentType}, nil
}
func (b *s3Backend) Delete(ctx context.Context, key string) error {
_, err := b.client.DeleteObject(ctx, &s3.DeleteObjectInput{
Bucket: aws.String(b.bucket),
Key: aws.String(b.key(key)),
})
if err != nil {
return fmt.Errorf("delete S3 object: %w", err)
}
return nil
}
func (b *s3Backend) Test(ctx context.Context) error {
_, err := b.client.HeadBucket(ctx, &s3.HeadBucketInput{Bucket: aws.String(b.bucket)})
if err != nil {
return fmt.Errorf("access S3 bucket: %w", err)
}
return nil
}
func (b *s3Backend) key(key string) string {
key = strings.TrimLeft(key, "/")
if b.keyPrefix == "" || strings.HasPrefix(key, b.keyPrefix+"/") {
return key
}
return b.keyPrefix + "/" + key
}