frostfs-s3-gw/api/handler/response.go
Evgeniy Kulikov 2a93a216f8 Migrate to SDK 0.3.0 and fixes
- fix displaying list objects
- simplify `ListObjects`
- simplify `GetObjectHandler`
- simplify `HeadObjectHandler`
- add method for `GetBucketVersioningHandler`
- add method for `ListMultipartUploadsHandler`
- improvements for `HeadObjectHandler`, to display folders meta
- update dependencies
  - github.com/aws/aws-sdk-go v1.36.26
  - github.com/google/uuid v1.1.4
  - github.com/gorilla/mux v1.8.0
  - github.com/nspcc-dev/cdn-sdk v0.3.0
  - github.com/nspcc-dev/neofs-api-go v1.22.0
  - github.com/prometheus/client_golang v1.9.0
  - github.com/stretchr/testify v1.7.0
  - google.golang.org/grpc v1.35.0

Signed-off-by: Evgeniy Kulikov <kim@nspcc.ru>
2021-01-14 20:39:48 +03:00

154 lines
4.8 KiB
Go

package handler
import "encoding/xml"
// ListBucketsResponse - format for list buckets response
type ListBucketsResponse struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListAllMyBucketsResult" json:"-"`
Owner Owner
// Container for one or more buckets.
Buckets struct {
Buckets []Bucket `xml:"Bucket"`
} // Buckets are nested
}
// ListObjectsV2Response - format for list objects response.
type ListObjectsV2Response struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListBucketResult" json:"-"`
Name string
Prefix string
StartAfter string `xml:"StartAfter,omitempty"`
// When response is truncated (the IsTruncated element value in the response
// is true), you can use the key name in this field as marker in the subsequent
// request to get next set of objects. Server lists objects in alphabetical
// order Note: This element is returned only if you have delimiter request parameter
// specified. If response does not include the NextMaker and it is truncated,
// you can use the value of the last Key in the response as the marker in the
// subsequent request to get the next set of object keys.
ContinuationToken string `xml:"ContinuationToken,omitempty"`
NextContinuationToken string `xml:"NextContinuationToken,omitempty"`
KeyCount int
MaxKeys int
Delimiter string
// A flag that indicates whether or not ListObjects returned all of the results
// that satisfied the search criteria.
IsTruncated bool
Contents []Object
CommonPrefixes []CommonPrefix
// Encoding type used to encode object keys in the response.
EncodingType string `xml:"EncodingType,omitempty"`
}
// Bucket container for bucket metadata
type Bucket struct {
Name string
CreationDate string // time string of format "2006-01-02T15:04:05.000Z"
}
// Owner - bucket owner/principal
type Owner struct {
ID string
DisplayName string
}
// ListObjectsResponse - format for list objects response.
type ListObjectsResponse struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListBucketResult" json:"-"`
Name string
Prefix string
Marker string
// When response is truncated (the IsTruncated element value in the response
// is true), you can use the key name in this field as marker in the subsequent
// request to get next set of objects. Server lists objects in alphabetical
// order Note: This element is returned only if you have delimiter request parameter
// specified. If response does not include the NextMaker and it is truncated,
// you can use the value of the last Key in the response as the marker in the
// subsequent request to get the next set of object keys.
NextMarker string `xml:"NextMarker,omitempty"`
MaxKeys int
Delimiter string
// A flag that indicates whether or not ListObjects returned all of the results
// that satisfied the search criteria.
IsTruncated bool
Contents []Object
CommonPrefixes []CommonPrefix
// Encoding type used to encode object keys in the response.
EncodingType string `xml:"EncodingType,omitempty"`
}
// CommonPrefix container for prefix response in ListObjectsResponse
type CommonPrefix struct {
Prefix string
}
// Object container for object metadata
type Object struct {
Key string
LastModified string // time string of format "2006-01-02T15:04:05.000Z"
ETag string `xml:"ETag,omitempty"`
Size int64
// Owner of the object.
Owner Owner
// The class of storage used to store the object.
StorageClass string `xml:"StorageClass,omitempty"`
// UserMetadata user-defined metadata
UserMetadata StringMap `xml:"UserMetadata,omitempty"`
}
// StringMap is a map[string]string.
type StringMap map[string]string
// LocationResponse - format for location response.
type LocationResponse struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ LocationConstraint" json:"-"`
Location string `xml:",chardata"`
}
// CopyObjectResponse container returns ETag and LastModified of the successfully copied object
type CopyObjectResponse struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CopyObjectResult" json:"-"`
LastModified string // time string of format "2006-01-02T15:04:05.000Z"
ETag string // md5sum of the copied object.
}
// MarshalXML - StringMap marshals into XML.
func (s StringMap) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
tokens := []xml.Token{start}
for key, value := range s {
t := xml.StartElement{}
t.Name = xml.Name{
Space: "",
Local: key,
}
tokens = append(tokens, t, xml.CharData(value), xml.EndElement{Name: t.Name})
}
tokens = append(tokens, xml.EndElement{
Name: start.Name,
})
for _, t := range tokens {
if err := e.EncodeToken(t); err != nil {
return err
}
}
// flush to ensure tokens are written
return e.Flush()
}