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Open-IM-Server/pkg/common/db/obj/obj.go

91 lines
2.3 KiB

package obj
import (
"context"
"io"
"net/http"
"time"
)
type BucketObject struct {
Bucket string `json:"bucket"`
Name string `json:"name"`
}
type ApplyPutArgs struct {
Bucket string
Name string
Effective time.Duration // 申请有效时间
Header http.Header // header
MaxObjectSize int64
}
type HeaderOption struct {
ContentType string
Filename string
}
type ObjectInfo struct {
Size int64
Hash string
}
type SizeReader interface {
io.ReadCloser
Size() int64
}
func NewSizeReader(r io.ReadCloser, size int64) SizeReader {
if r == nil {
return nil
}
return &sizeReader{
size: size,
ReadCloser: r,
}
}
type sizeReader struct {
size int64
io.ReadCloser
}
func (r *sizeReader) Size() int64 {
return r.size
}
type Interface interface {
// Name 存储名字
Name() string
// MinFragmentSize 最小允许的分片大小
MinFragmentSize() int64
// MaxFragmentNum 最大允许的分片数量
MaxFragmentNum() int
// MinExpirationTime 最小过期时间
MinExpirationTime() time.Duration
// TempBucket 临时桶名,用于上传
TempBucket() string
// DataBucket 永久存储的桶名
DataBucket() string
// PresignedGetURL 通过桶名和对象名返回URL
PresignedGetURL(ctx context.Context, bucket string, name string, expires time.Duration, opt *HeaderOption) (string, error)
// PresignedPutURL 申请上传,返回PUT的上传地址
PresignedPutURL(ctx context.Context, args *ApplyPutArgs) (string, error)
// GetObjectInfo 获取对象信息
GetObjectInfo(ctx context.Context, args *BucketObject) (*ObjectInfo, error)
// CopyObject 复制对象
CopyObject(ctx context.Context, src *BucketObject, dst *BucketObject) error
// DeleteObject 删除对象(不存在返回nil)
DeleteObject(ctx context.Context, info *BucketObject) error
// ComposeObject 合并对象
ComposeObject(ctx context.Context, src []BucketObject, dst *BucketObject) error
// IsNotFound 判断是不是不存在导致的错误
IsNotFound(err error) bool
// CheckName 检查名字是否可用
CheckName(name string) error
// PutObject 上传文件
PutObject(ctx context.Context, info *BucketObject, reader io.Reader, size int64) (*ObjectInfo, error)
// GetObject 下载文件
GetObject(ctx context.Context, info *BucketObject) (SizeReader, error)
}