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package cos
import ( "context" "encoding/xml" "fmt" "io" "net/http" )
// InitiateMultipartUploadOptions is the option of InitateMultipartUpload
type InitiateMultipartUploadOptions struct { *ACLHeaderOptions *ObjectPutHeaderOptions }
// InitiateMultipartUploadResult is the result of InitateMultipartUpload
type InitiateMultipartUploadResult struct { XMLName xml.Name `xml:"InitiateMultipartUploadResult"` Bucket string Key string UploadID string `xml:"UploadId"` }
// InitiateMultipartUpload 请求实现初始化分片上传,成功执行此请求以后会返回Upload ID用于后续的Upload Part请求。
//
// https://www.qcloud.com/document/product/436/7746
func (s *ObjectService) InitiateMultipartUpload(ctx context.Context, name string, opt *InitiateMultipartUploadOptions) (*InitiateMultipartUploadResult, *Response, error) { var res InitiateMultipartUploadResult sendOpt := sendOptions{ baseURL: s.client.BaseURL.BucketURL, uri: "/" + encodeURIComponent(name) + "?uploads", method: http.MethodPost, optHeader: opt, result: &res, } resp, err := s.client.send(ctx, &sendOpt) return &res, resp, err }
// ObjectUploadPartOptions is the options of upload-part
type ObjectUploadPartOptions struct { Expect string `header:"Expect,omitempty" url:"-"` XCosContentSHA1 string `header:"x-cos-content-sha1" url:"-"` ContentLength int `header:"Content-Length,omitempty" url:"-"` }
// UploadPart 请求实现在初始化以后的分块上传,支持的块的数量为1到10000,块的大小为1 MB 到5 GB。
// 在每次请求Upload Part时候,需要携带partNumber和uploadID,partNumber为块的编号,支持乱序上传。
//
// 当传入uploadID和partNumber都相同的时候,后传入的块将覆盖之前传入的块。当uploadID不存在时会返回404错误,NoSuchUpload.
//
// 当 r 不是 bytes.Buffer/bytes.Reader/strings.Reader 时,必须指定 opt.ContentLength
//
// https://www.qcloud.com/document/product/436/7750
func (s *ObjectService) UploadPart(ctx context.Context, name, uploadID string, partNumber int, r io.Reader, opt *ObjectUploadPartOptions) (*Response, error) { u := fmt.Sprintf("/%s?partNumber=%d&uploadId=%s", encodeURIComponent(name), partNumber, uploadID) sendOpt := sendOptions{ baseURL: s.client.BaseURL.BucketURL, uri: u, method: http.MethodPut, optHeader: opt, body: r, } resp, err := s.client.send(ctx, &sendOpt) return resp, err }
// ObjectListPartsOptions is the option of ListParts
type ObjectListPartsOptions struct { EncodingType string `url:"Encoding-type,omitempty"` MaxParts int `url:"max-parts,omitempty"` PartNumberMarker int `url:"part-number-marker,omitempty"` }
// ObjectListPartsResult is the result of ListParts
type ObjectListPartsResult struct { XMLName xml.Name `xml:"ListPartsResult"` Bucket string EncodingType string `xml:"Encoding-type,omitempty"` Key string UploadID string `xml:"UploadId"` Initiator *Initiator `xml:"Initiator,omitempty"` Owner *Owner `xml:"Owner,omitempty"` StorageClass string PartNumberMarker int NextPartNumberMarker int `xml:"NextPartNumberMarker,omitempty"` MaxParts int IsTruncated bool Parts []Object `xml:"Part,omitempty"` }
// ListParts 用来查询特定分块上传中的已上传的块。
//
// https://www.qcloud.com/document/product/436/7747
func (s *ObjectService) ListParts(ctx context.Context, name, uploadID string) (*ObjectListPartsResult, *Response, error) { u := fmt.Sprintf("/%s?uploadId=%s", encodeURIComponent(name), uploadID) var res ObjectListPartsResult sendOpt := sendOptions{ baseURL: s.client.BaseURL.BucketURL, uri: u, method: http.MethodGet, result: &res, } resp, err := s.client.send(ctx, &sendOpt) return &res, resp, err }
// CompleteMultipartUploadOptions is the option of CompleteMultipartUpload
type CompleteMultipartUploadOptions struct { XMLName xml.Name `xml:"CompleteMultipartUpload"` Parts []Object `xml:"Part"` }
// CompleteMultipartUploadResult is the result CompleteMultipartUpload
type CompleteMultipartUploadResult struct { XMLName xml.Name `xml:"CompleteMultipartUploadResult"` Location string Bucket string Key string ETag string }
// CompleteMultipartUpload 用来实现完成整个分块上传。当您已经使用Upload Parts上传所有块以后,你可以用该API完成上传。
// 在使用该API时,您必须在Body中给出每一个块的PartNumber和ETag,用来校验块的准确性。
//
// 由于分块上传的合并需要数分钟时间,因而当合并分块开始的时候,COS就立即返回200的状态码,在合并的过程中,
// COS会周期性的返回空格信息来保持连接活跃,直到合并完成,COS会在Body中返回合并后块的内容。
//
// 当上传块小于1 MB的时候,在调用该请求时,会返回400 EntityTooSmall;
// 当上传块编号不连续的时候,在调用该请求时,会返回400 InvalidPart;
// 当请求Body中的块信息没有按序号从小到大排列的时候,在调用该请求时,会返回400 InvalidPartOrder;
// 当UploadId不存在的时候,在调用该请求时,会返回404 NoSuchUpload。
//
// 建议您及时完成分块上传或者舍弃分块上传,因为已上传但是未终止的块会占用存储空间进而产生存储费用。
//
// https://www.qcloud.com/document/product/436/7742
func (s *ObjectService) CompleteMultipartUpload(ctx context.Context, name, uploadID string, opt *CompleteMultipartUploadOptions) (*CompleteMultipartUploadResult, *Response, error) { u := fmt.Sprintf("/%s?uploadId=%s", encodeURIComponent(name), uploadID) var res CompleteMultipartUploadResult sendOpt := sendOptions{ baseURL: s.client.BaseURL.BucketURL, uri: u, method: http.MethodPost, body: opt, result: &res, } resp, err := s.client.send(ctx, &sendOpt) return &res, resp, err }
// AbortMultipartUpload 用来实现舍弃一个分块上传并删除已上传的块。当您调用Abort Multipart Upload时,
// 如果有正在使用这个Upload Parts上传块的请求,则Upload Parts会返回失败。当该UploadID不存在时,会返回404 NoSuchUpload。
//
// 建议您及时完成分块上传或者舍弃分块上传,因为已上传但是未终止的块会占用存储空间进而产生存储费用。
//
// https://www.qcloud.com/document/product/436/7740
func (s *ObjectService) AbortMultipartUpload(ctx context.Context, name, uploadID string) (*Response, error) { u := fmt.Sprintf("/%s?uploadId=%s", encodeURIComponent(name), uploadID) sendOpt := sendOptions{ baseURL: s.client.BaseURL.BucketURL, uri: u, method: http.MethodDelete, } resp, err := s.client.send(ctx, &sendOpt) return resp, err }
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