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/*
* Copyright 2025 coze-dev Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package tos
import (
"bytes"
"context"
"fmt"
"io"
"net/http"
"strings"
"time"
"github.com/volcengine/ve-tos-golang-sdk/v2/tos"
"github.com/volcengine/ve-tos-golang-sdk/v2/tos/enum"
"github.com/coze-dev/coze-studio/backend/infra/contract/storage"
"github.com/coze-dev/coze-studio/backend/infra/impl/storage/proxy"
"github.com/coze-dev/coze-studio/backend/pkg/goutil"
"github.com/coze-dev/coze-studio/backend/pkg/lang/conv"
"github.com/coze-dev/coze-studio/backend/pkg/logs"
"github.com/coze-dev/coze-studio/backend/pkg/taskgroup"
)
type tosClient struct {
client *tos.ClientV2
bucketName string
}
func New(ctx context.Context, ak, sk, bucketName, endpoint, region string) (storage.Storage, error) {
t, err := getTosClient(ctx, ak, sk, bucketName, endpoint, region)
if err != nil {
return nil, err
}
// t.test()
return t, nil
}
func getTosClient(ctx context.Context, ak, sk, bucketName, endpoint, region string) (*tosClient, error) {
credential := tos.NewStaticCredentials(ak, sk)
client, err := tos.NewClientV2(endpoint,
tos.WithCredentials(credential), tos.WithRegion(region))
if err != nil {
return nil, fmt.Errorf("new tos client failed, bucketName: %s, endpoint: %s, region: %s, err: %v", bucketName, endpoint, region, err)
}
t := &tosClient{
client: client,
bucketName: bucketName,
}
// Create bucket
err = t.CheckAndCreateBucket(ctx)
if err != nil {
return nil, err
}
return t, nil
}
func (t *tosClient) test() {
// test list objects
ctx := context.Background()
// test upload
objectKey := fmt.Sprintf("test-%s.txt", time.Now().Format("20060102150405"))
err := t.PutObject(context.Background(), objectKey, []byte("hello world"), storage.WithTagging(map[string]string{
"uid": "7543149965070155780",
"conversation_id": "7543149965070155781",
"type": "user",
}))
if err != nil {
logs.CtxErrorf(context.Background(), "PutObject failed, objectKey: %s, err: %v", objectKey, err)
}
f, err := t.HeadObject(ctx, objectKey, true)
if err != nil {
logs.CtxErrorf(context.Background(), "HeadObject failed, objectKey: %s, err: %v", objectKey, err)
}
if f != nil {
logs.CtxInfof(context.Background(), "HeadObject success, f: %v, tagging: %v", *f, f.Tagging)
}
f, err = t.HeadObject(ctx, "not_exit.txt", true)
logs.CtxInfof(context.Background(), "HeadObject not exit success, f: %v, err: %v", f, err)
t.ListAllObjects(ctx, "", true)
// test download
content, err := t.GetObject(context.Background(), objectKey)
if err != nil {
logs.CtxErrorf(context.Background(), "GetObject failed, objectKey: %s, err: %v", objectKey, err)
}
logs.CtxInfof(context.Background(), "GetObject content: %s", string(content))
// Test Get URL
url, err := t.GetObjectUrl(context.Background(), objectKey)
if err != nil {
logs.CtxErrorf(context.Background(), "GetObjectUrl failed, objectKey: %s, err: %v", objectKey, err)
}
logs.CtxInfof(context.Background(), "GetObjectUrl url: %s", url)
// test delete
err = t.DeleteObject(context.Background(), objectKey)
if err != nil {
logs.CtxErrorf(context.Background(), "DeleteObject failed, objectKey: %s, err: %v", objectKey, err)
}
}
func (t *tosClient) CheckAndCreateBucket(ctx context.Context) error {
client := t.client
bucketName := t.bucketName
_, err := client.HeadBucket(ctx, &tos.HeadBucketInput{Bucket: bucketName})
if err == nil {
return nil // already exist
}
serverErr, ok := err.(*tos.TosServerError)
if !ok {
return err
}
if serverErr.StatusCode == http.StatusNotFound {
// Bucket does not exist
logs.CtxInfof(ctx, "Bucket not found.")
resp, err := client.CreateBucketV2(ctx, &tos.CreateBucketV2Input{
Bucket: bucketName,
ACL: enum.ACLPrivate,
})
logs.CtxInfof(ctx, "Bucket Create resp: %v, err: %v", conv.DebugJsonToStr(resp), err)
return err
}
return err
}
func (t *tosClient) PutObject(ctx context.Context, objectKey string, content []byte, opts ...storage.PutOptFn) error {
opts = append(opts, storage.WithObjectSize(int64(len(content))))
return t.PutObjectWithReader(ctx, objectKey, bytes.NewReader(content), opts...)
}
func (t *tosClient) PutObjectWithReader(ctx context.Context, objectKey string, content io.Reader, opts ...storage.PutOptFn) error {
client := t.client
bucketName := t.bucketName
option := storage.PutOption{}
for _, opt := range opts {
opt(&option)
}
input := &tos.PutObjectV2Input{
PutObjectBasicInput: tos.PutObjectBasicInput{
Bucket: bucketName,
Key: objectKey,
},
Content: content,
}
if option.ContentType != nil {
input.ContentType = *option.ContentType
}
if option.ContentEncoding != nil {
input.ContentEncoding = *option.ContentEncoding
}
if option.ContentDisposition != nil {
input.ContentDisposition = *option.ContentDisposition
}
if option.ContentLanguage != nil {
input.ContentLanguage = *option.ContentLanguage
}
if option.Expires != nil {
input.Expires = *option.Expires
}
if option.ObjectSize > 0 {
input.ContentLength = option.ObjectSize
}
if len(option.Tagging) > 0 {
input.Tagging = goutil.MapToQuery(option.Tagging)
}
_, err := client.PutObjectV2(ctx, input)
return err
}
func (t *tosClient) GetObject(ctx context.Context, objectKey string) ([]byte, error) {
client := t.client
bucketName := t.bucketName
// Download data to memory
getOutput, err := client.GetObjectV2(ctx, &tos.GetObjectV2Input{
Bucket: bucketName,
Key: objectKey,
ResponseContentType: "application/json",
ResponseContentEncoding: "deflate",
})
if err != nil {
return nil, err
}
// logs.CtxDebugf(ctx, "GetObject resp: %v, err: %v", conv.DebugJsonToStr(getOutput), err)
body, err := io.ReadAll(getOutput.Content)
if err != nil {
return nil, err
}
return body, nil
}
func (t *tosClient) DeleteObject(ctx context.Context, objectKey string) error {
client := t.client
bucketName := t.bucketName
// Delete the specified object in the bucket
_, err := client.DeleteObjectV2(ctx, &tos.DeleteObjectV2Input{
Bucket: bucketName,
Key: objectKey,
})
return err
}
func (t *tosClient) GetObjectUrl(ctx context.Context, objectKey string, opts ...storage.GetOptFn) (string, error) {
client := t.client
bucketName := t.bucketName
output, err := client.PreSignedURL(&tos.PreSignedURLInput{
HTTPMethod: enum.HttpMethodGet,
Expires: 60 * 60 * 24,
Bucket: bucketName,
Key: objectKey,
})
if err != nil {
return "", err
}
ok, proxyURL := proxy.CheckIfNeedReplaceHost(ctx, output.SignedUrl)
if ok {
return proxyURL, nil
}
return output.SignedUrl, nil
}
func (t *tosClient) ListObjectsPaginated(ctx context.Context, input *storage.ListObjectsPaginatedInput) (*storage.ListObjectsPaginatedOutput, error) {
if input == nil {
return nil, fmt.Errorf("input cannot be nil")
}
if input.PageSize <= 0 {
return nil, fmt.Errorf("page size must be positive")
}
output, err := t.client.ListObjectsV2(ctx, &tos.ListObjectsV2Input{
Bucket: t.bucketName,
ListObjectsInput: tos.ListObjectsInput{
MaxKeys: int(input.PageSize),
Marker: input.Cursor,
Prefix: input.Prefix,
FetchMeta: input.WithTagging,
},
})
if err != nil {
return nil, fmt.Errorf("list objects failed, err: %w", err)
}
files := make([]*storage.FileInfo, 0, len(output.Contents))
for _, obj := range output.Contents {
if obj.Size == 0 && strings.HasSuffix(obj.Key, "/") {
logs.CtxDebugf(ctx, "[ListObjectsPaginated] skip dir: %s", obj.Key)
continue
}
files = append(files, &storage.FileInfo{
Key: obj.Key,
LastModified: obj.LastModified,
ETag: obj.ETag,
Size: obj.Size,
})
}
if input.WithTagging {
client := t.client
taskGroup := taskgroup.NewTaskGroup(ctx, 5)
for idx := range files {
f := files[idx]
taskGroup.Go(func() error {
tagging, err := client.GetObjectTagging(ctx, &tos.GetObjectTaggingInput{
Bucket: t.bucketName,
Key: f.Key,
})
if err != nil {
return err
}
f.Tagging = tagsToMap(tagging.TagSet.Tags)
return nil
})
}
if err := taskGroup.Wait(); err != nil {
return nil, err
}
}
return &storage.ListObjectsPaginatedOutput{
Files: files,
Cursor: output.NextMarker,
IsTruncated: output.IsTruncated,
}, nil
}
func (t *tosClient) ListAllObjects(ctx context.Context, prefix string, withTagging bool) ([]*storage.FileInfo, error) {
const (
DefaultPageSize = 100
MaxListObjects = 10000
)
files := make([]*storage.FileInfo, 0, DefaultPageSize)
cursor := ""
for {
output, err := t.ListObjectsPaginated(ctx, &storage.ListObjectsPaginatedInput{
Prefix: prefix,
PageSize: DefaultPageSize,
Cursor: cursor,
WithTagging: withTagging,
})
if err != nil {
return nil, fmt.Errorf("list objects failed, prefix = %v, err: %v", prefix, err)
}
for _, object := range output.Files {
logs.CtxDebugf(ctx, "key = %s, lastModified = %s, eTag = %s, size = %d, tagging = %v",
object.Key, object.LastModified, object.ETag, object.Size, object.Tagging)
files = append(files, object)
}
cursor = output.Cursor
logs.CtxDebugf(ctx, "IsTruncated = %v, Cursor = %s", output.IsTruncated, output.Cursor)
if len(files) >= MaxListObjects {
logs.CtxErrorf(ctx, "[ListObjects] max list objects reached, total: %d", len(files))
break
}
if !output.IsTruncated || output.Cursor == "" {
break
}
}
return files, nil
}
func (t *tosClient) HeadObject(ctx context.Context, objectKey string, withTagging bool) (*storage.FileInfo, error) {
output, err := t.client.HeadObjectV2(ctx, &tos.HeadObjectV2Input{Bucket: t.bucketName, Key: objectKey})
if err != nil {
if serverErr, ok := err.(*tos.TosServerError); ok {
if serverErr.StatusCode == http.StatusNotFound {
return nil, nil
}
}
return nil, err
}
fileInfo := &storage.FileInfo{
Key: objectKey,
LastModified: output.LastModified,
ETag: output.ETag,
Size: output.ContentLength,
}
if withTagging {
tagging, err := t.client.GetObjectTagging(ctx, &tos.GetObjectTaggingInput{
Bucket: t.bucketName,
Key: objectKey,
})
if err != nil {
return nil, err
}
fileInfo.Tagging = tagsToMap(tagging.TagSet.Tags)
}
return fileInfo, nil
}
func tagsToMap(tags []tos.Tag) map[string]string {
if len(tags) == 0 {
return nil
}
m := make(map[string]string, len(tags))
for _, tag := range tags {
m[tag.Key] = tag.Value
}
return m
}