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https://github.com/seaweedfs/seaweedfs.git
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117 lines
3 KiB
Go
117 lines
3 KiB
Go
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package s3api
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import (
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"github.com/gorilla/mux"
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"net/http"
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"net/url"
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"strconv"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
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"context"
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"fmt"
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"path/filepath"
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"time"
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"github.com/chrislusf/seaweedfs/weed/filer2"
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)
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const (
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maxObjectListSizeLimit = 1000 // Limit number of objects in a listObjectsResponse.
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)
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func (s3a *S3ApiServer) ListObjectsV1Handler(w http.ResponseWriter, r *http.Request) {
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// https://docs.aws.amazon.com/AmazonS3/latest/API/RESTBucketGET.html
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// collect parameters
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vars := mux.Vars(r)
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bucket := vars["bucket"]
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originalPrefix, marker, delimiter, maxKeys := getListObjectsV1Args(r.URL.Query())
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if maxKeys < 0 {
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writeErrorResponse(w, ErrInvalidMaxKeys, r.URL)
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return
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}
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if delimiter != "" && delimiter != "/" {
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writeErrorResponse(w, ErrNotImplemented, r.URL)
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}
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// convert full path prefix into directory name and prefix for entry name
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dir, prefix := filepath.Split(originalPrefix)
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// check filer
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var response ListBucketResponse
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err := s3a.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
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request := &filer_pb.ListEntriesRequest{
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Directory: fmt.Sprintf("%s/%s/%s", s3a.option.BucketsPath, bucket, dir),
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Prefix: prefix,
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Limit: uint32(maxKeys),
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StartFromFileName: marker,
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InclusiveStartFrom: false,
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}
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glog.V(4).Infof("read directory: %v", request)
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resp, err := client.ListEntries(context.Background(), request)
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if err != nil {
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return fmt.Errorf("list buckets: %v", err)
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}
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var contents []ListEntry
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var commonPrefixes []PrefixEntry
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for _, entry := range resp.Entries {
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if entry.IsDirectory {
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commonPrefixes = append(commonPrefixes, PrefixEntry{
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Prefix: fmt.Sprintf("%s%s/", dir, entry.Name),
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})
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} else {
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contents = append(contents, ListEntry{
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Key: fmt.Sprintf("%s%s", dir, entry.Name),
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LastModified: time.Unix(entry.Attributes.Mtime, 0),
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ETag: "", // TODO add etag
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Size: int64(filer2.TotalSize(entry.Chunks)),
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Owner: CanonicalUser{
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ID: fmt.Sprintf("%d", entry.Attributes.Uid),
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},
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StorageClass: StorageClass("STANDARD"),
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})
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}
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}
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response = ListBucketResponse{
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ListBucketResponse: ListBucketResult{
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Name: bucket,
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Prefix: originalPrefix,
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Marker: marker, // TODO
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NextMarker: "", // TODO
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MaxKeys: maxKeys,
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Delimiter: delimiter,
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IsTruncated: false, // TODO
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Contents: contents,
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CommonPrefixes: commonPrefixes,
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},
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}
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return nil
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})
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if err != nil {
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writeErrorResponse(w, ErrInternalError, r.URL)
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return
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}
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writeSuccessResponseXML(w, encodeResponse(response))
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}
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func getListObjectsV1Args(values url.Values) (prefix, marker, delimiter string, maxkeys int) {
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prefix = values.Get("prefix")
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marker = values.Get("marker")
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delimiter = values.Get("delimiter")
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if values.Get("max-keys") != "" {
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maxkeys, _ = strconv.Atoi(values.Get("max-keys"))
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} else {
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maxkeys = maxObjectListSizeLimit
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}
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return
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}
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