mirror of
https://github.com/seaweedfs/seaweedfs.git
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200 lines
5.8 KiB
Go
200 lines
5.8 KiB
Go
package s3api
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import (
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"encoding/xml"
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"fmt"
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"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
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"golang.org/x/exp/slices"
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"io"
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"net/http"
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"strings"
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"github.com/seaweedfs/seaweedfs/weed/filer"
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"github.com/seaweedfs/seaweedfs/weed/s3api/s3err"
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"github.com/seaweedfs/seaweedfs/weed/glog"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/util"
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)
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const (
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deleteMultipleObjectsLimit = 1000
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)
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func (s3a *S3ApiServer) DeleteObjectHandler(w http.ResponseWriter, r *http.Request) {
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bucket, object := s3_constants.GetBucketAndObject(r)
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glog.V(3).Infof("DeleteObjectHandler %s %s", bucket, object)
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object = urlPathEscape(removeDuplicateSlashes(object))
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s3a.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
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err := doDeleteEntry(client, s3a.option.BucketsPath+"/"+bucket, object, true, false)
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if err != nil {
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// skip deletion error, usually the file is not found
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return nil
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}
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if s3a.option.AllowEmptyFolder {
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return nil
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}
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directoriesWithDeletion := make(map[string]int)
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lastSeparator := strings.LastIndex(object, "/")
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if lastSeparator > 0 {
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parentDirectoryPath := fmt.Sprintf("%s/%s%s", s3a.option.BucketsPath, bucket, object[:lastSeparator])
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directoriesWithDeletion[parentDirectoryPath]++
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// purge empty folders, only checking folders with deletions
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for len(directoriesWithDeletion) > 0 {
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directoriesWithDeletion = s3a.doDeleteEmptyDirectories(client, directoriesWithDeletion)
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}
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}
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return nil
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})
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w.WriteHeader(http.StatusNoContent)
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}
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// / ObjectIdentifier carries key name for the object to delete.
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type ObjectIdentifier struct {
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ObjectName string `xml:"Key"`
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}
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// DeleteObjectsRequest - xml carrying the object key names which needs to be deleted.
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type DeleteObjectsRequest struct {
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// Element to enable quiet mode for the request
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Quiet bool
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// List of objects to be deleted
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Objects []ObjectIdentifier `xml:"Object"`
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}
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// DeleteError structure.
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type DeleteError struct {
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Code string
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Message string
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Key string
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}
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// DeleteObjectsResponse container for multiple object deletes.
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type DeleteObjectsResponse struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ DeleteResult" json:"-"`
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// Collection of all deleted objects
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DeletedObjects []ObjectIdentifier `xml:"Deleted,omitempty"`
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// Collection of errors deleting certain objects.
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Errors []DeleteError `xml:"Error,omitempty"`
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}
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// DeleteMultipleObjectsHandler - Delete multiple objects
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func (s3a *S3ApiServer) DeleteMultipleObjectsHandler(w http.ResponseWriter, r *http.Request) {
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bucket, _ := s3_constants.GetBucketAndObject(r)
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glog.V(3).Infof("DeleteMultipleObjectsHandler %s", bucket)
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deleteXMLBytes, err := io.ReadAll(r.Body)
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if err != nil {
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s3err.WriteErrorResponse(w, r, s3err.ErrInternalError)
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return
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}
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deleteObjects := &DeleteObjectsRequest{}
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if err := xml.Unmarshal(deleteXMLBytes, deleteObjects); err != nil {
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s3err.WriteErrorResponse(w, r, s3err.ErrMalformedXML)
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return
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}
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if len(deleteObjects.Objects) > deleteMultipleObjectsLimit {
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s3err.WriteErrorResponse(w, r, s3err.ErrInvalidMaxDeleteObjects)
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return
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}
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var deletedObjects []ObjectIdentifier
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var deleteErrors []DeleteError
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var auditLog *s3err.AccessLog
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directoriesWithDeletion := make(map[string]int)
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if s3err.Logger != nil {
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auditLog = s3err.GetAccessLog(r, http.StatusNoContent, s3err.ErrNone)
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}
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s3a.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
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// delete file entries
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for _, object := range deleteObjects.Objects {
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if object.ObjectName == "" {
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continue
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}
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lastSeparator := strings.LastIndex(object.ObjectName, "/")
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parentDirectoryPath, entryName, isDeleteData, isRecursive := "", object.ObjectName, true, false
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if lastSeparator > 0 && lastSeparator+1 < len(object.ObjectName) {
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entryName = object.ObjectName[lastSeparator+1:]
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parentDirectoryPath = "/" + object.ObjectName[:lastSeparator]
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}
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parentDirectoryPath = fmt.Sprintf("%s/%s%s", s3a.option.BucketsPath, bucket, parentDirectoryPath)
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err := doDeleteEntry(client, parentDirectoryPath, entryName, isDeleteData, isRecursive)
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if err == nil {
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directoriesWithDeletion[parentDirectoryPath]++
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deletedObjects = append(deletedObjects, object)
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} else if strings.Contains(err.Error(), filer.MsgFailDelNonEmptyFolder) {
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deletedObjects = append(deletedObjects, object)
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} else {
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delete(directoriesWithDeletion, parentDirectoryPath)
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deleteErrors = append(deleteErrors, DeleteError{
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Code: "",
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Message: err.Error(),
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Key: object.ObjectName,
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})
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}
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if auditLog != nil {
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auditLog.Key = entryName
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s3err.PostAccessLog(*auditLog)
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}
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}
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// purge empty folders, only checking folders with deletions
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for len(directoriesWithDeletion) > 0 {
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directoriesWithDeletion = s3a.doDeleteEmptyDirectories(client, directoriesWithDeletion)
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}
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return nil
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})
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deleteResp := DeleteObjectsResponse{}
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if !deleteObjects.Quiet {
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deleteResp.DeletedObjects = deletedObjects
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}
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deleteResp.Errors = deleteErrors
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writeSuccessResponseXML(w, r, deleteResp)
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}
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func (s3a *S3ApiServer) doDeleteEmptyDirectories(client filer_pb.SeaweedFilerClient, directoriesWithDeletion map[string]int) (newDirectoriesWithDeletion map[string]int) {
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var allDirs []string
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for dir := range directoriesWithDeletion {
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allDirs = append(allDirs, dir)
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}
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slices.SortFunc(allDirs, func(a, b string) int {
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return len(b) - len(a)
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})
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newDirectoriesWithDeletion = make(map[string]int)
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for _, dir := range allDirs {
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parentDir, dirName := util.FullPath(dir).DirAndName()
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if parentDir == s3a.option.BucketsPath {
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continue
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}
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if err := doDeleteEntry(client, parentDir, dirName, false, false); err != nil {
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glog.V(4).Infof("directory %s has %d deletion but still not empty: %v", dir, directoriesWithDeletion[dir], err)
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} else {
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newDirectoriesWithDeletion[parentDir]++
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}
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}
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return
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}
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