forked from TrueCloudLab/frostfs-s3-gw
232 lines
7.7 KiB
Go
232 lines
7.7 KiB
Go
package handler
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import (
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"encoding/xml"
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"fmt"
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)
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// ListBucketsResponse -- format for list buckets response.
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type ListBucketsResponse struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListAllMyBucketsResult" json:"-"`
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Owner Owner
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// Container for one or more buckets.
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Buckets struct {
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Buckets []Bucket `xml:"Bucket"`
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} // Buckets are nested
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}
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// ListObjectsV1Response -- format for ListObjectsV1 response.
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type ListObjectsV1Response struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListBucketResult" json:"-"`
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CommonPrefixes []CommonPrefix `xml:"CommonPrefixes"`
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Contents []Object `xml:"Contents"`
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Delimiter string `xml:"Delimiter,omitempty"`
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EncodingType string `xml:"EncodingType,omitempty"`
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IsTruncated bool `xml:"IsTruncated"`
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Marker string `xml:"Marker"`
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MaxKeys int `xml:"MaxKeys"`
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Name string `xml:"Name"`
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NextMarker string `xml:"NextMarker,omitempty"`
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Prefix string `xml:"Prefix"`
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}
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// ListObjectsV2Response -- format for ListObjectsV2 response.
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type ListObjectsV2Response struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListBucketResult" json:"-"`
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CommonPrefixes []CommonPrefix `xml:"CommonPrefixes"`
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Contents []Object `xml:"Contents"`
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ContinuationToken string `xml:"ContinuationToken,omitempty"`
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Delimiter string `xml:"Delimiter,omitempty"`
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EncodingType string `xml:"EncodingType,omitempty"`
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IsTruncated bool `xml:"IsTruncated"`
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KeyCount int `xml:"KeyCount"`
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MaxKeys int `xml:"MaxKeys"`
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Name string `xml:"Name"`
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NextContinuationToken string `xml:"NextContinuationToken,omitempty"`
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Prefix string `xml:"Prefix"`
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StartAfter string `xml:"StartAfter,omitempty"`
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}
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// Bucket container for bucket metadata.
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type Bucket struct {
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Name string
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CreationDate string // time string of format "2006-01-02T15:04:05.000Z"
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}
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// PolicyStatus contains status of bucket policy.
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type PolicyStatus struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ PolicyStatus" json:"-"`
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IsPublic PolicyStatusIsPublic `xml:"IsPublic"`
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}
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type PolicyStatusIsPublic string
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const (
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PolicyStatusIsPublicFalse = "FALSE"
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PolicyStatusIsPublicTrue = "TRUE"
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)
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// AccessControlPolicy contains ACL.
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type AccessControlPolicy struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ AccessControlPolicy" json:"-"`
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Owner Owner
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AccessControlList []*Grant `xml:"AccessControlList>Grant"`
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}
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// Grant is container for Grantee data.
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type Grant struct {
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Grantee *Grantee
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Permission AWSACL
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}
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// Grantee is info about access rights of some actor.
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type Grantee struct {
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XMLName xml.Name `xml:"Grantee"`
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XMLNS string `xml:"xmlns:xsi,attr"`
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ID string `xml:"ID,omitempty"`
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DisplayName string `xml:"DisplayName,omitempty"`
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EmailAddress string `xml:"EmailAddress,omitempty"`
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URI string `xml:"URI,omitempty"`
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Type GranteeType `xml:"xsi:type,attr"`
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}
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// NewGrantee creates new grantee using workaround
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// https://github.com/golang/go/issues/9519#issuecomment-252196382
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func NewGrantee(t GranteeType) *Grantee {
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return &Grantee{
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XMLNS: "http://www.w3.org/2001/XMLSchema-instance",
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Type: t,
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}
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}
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// Owner -- bucket owner/principal.
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type Owner struct {
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ID string
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DisplayName string
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}
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// CommonPrefix container for prefix response in ListObjects's response.
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type CommonPrefix struct {
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Prefix string
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}
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// Object container for object metadata.
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type Object struct {
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Key string
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LastModified string // time string of format "2006-01-02T15:04:05.000Z"
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ETag string `xml:"ETag,omitempty"`
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Size uint64
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// Owner of the object.
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Owner *Owner `xml:"Owner,omitempty"`
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// Class of storage used to store the object.
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StorageClass string `xml:"StorageClass"`
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}
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// ObjectVersionResponse container for object version in the response of ListBucketObjectVersionsHandler.
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type ObjectVersionResponse struct {
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ETag string `xml:"ETag"`
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IsLatest bool `xml:"IsLatest"`
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Key string `xml:"Key"`
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LastModified string `xml:"LastModified"`
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Owner Owner `xml:"Owner"`
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Size uint64 `xml:"Size"`
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StorageClass string `xml:"StorageClass"`
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VersionID string `xml:"VersionId"`
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}
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// DeleteMarkerEntry container for deleted object's version in the response of ListBucketObjectVersionsHandler.
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type DeleteMarkerEntry struct {
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IsLatest bool `xml:"IsLatest"`
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Key string `xml:"Key"`
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LastModified string `xml:"LastModified"`
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Owner Owner `xml:"Owner"`
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VersionID string `xml:"VersionId"`
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}
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// StringMap is a map[string]string.
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type StringMap map[string]string
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// LocationResponse -- format for location response.
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type LocationResponse struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ LocationConstraint" json:"-"`
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Location string `xml:",chardata"`
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}
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// CopyObjectResponse container returns ETag and LastModified of the successfully copied object.
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type CopyObjectResponse struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CopyObjectResult" json:"-"`
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LastModified string // time string of format "2006-01-02T15:04:05.000Z"
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ETag string // md5sum of the copied object.
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}
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// ListObjectsVersionsResponse is a response of ListBucketObjectVersionsHandler.
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type ListObjectsVersionsResponse struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListVersionsResult" json:"-"`
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EncodingType string `xml:"EncodingType,omitempty"`
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Name string `xml:"Name"`
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IsTruncated bool `xml:"IsTruncated"`
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KeyMarker string `xml:"KeyMarker"`
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NextKeyMarker string `xml:"NextKeyMarker,omitempty"`
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NextVersionIDMarker string `xml:"NextVersionIdMarker,omitempty"`
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VersionIDMarker string `xml:"VersionIdMarker"`
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DeleteMarker []DeleteMarkerEntry `xml:"DeleteMarker"`
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Version []ObjectVersionResponse `xml:"Version"`
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CommonPrefixes []CommonPrefix `xml:"CommonPrefixes"`
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}
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// VersioningConfiguration contains VersioningConfiguration XML representation.
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type VersioningConfiguration struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ VersioningConfiguration"`
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Status string `xml:"Status,omitempty"`
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MfaDelete string `xml:"MfaDelete,omitempty"`
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}
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// Tagging contains tag set.
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type Tagging struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ Tagging"`
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TagSet []Tag `xml:"TagSet>Tag"`
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}
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// PostResponse contains result of posting object.
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type PostResponse struct {
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Bucket string `xml:"Bucket"`
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Key string `xml:"Key"`
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ETag string `xml:"Etag"`
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}
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// Tag is an AWS key-value tag.
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type Tag struct {
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Key string
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Value string
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}
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// MarshalXML -- StringMap marshals into XML.
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func (s StringMap) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
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tokens := []xml.Token{start}
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for key, value := range s {
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t := xml.StartElement{}
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t.Name = xml.Name{
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Space: "",
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Local: key,
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}
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tokens = append(tokens, t, xml.CharData(value), xml.EndElement{Name: t.Name})
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}
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tokens = append(tokens, xml.EndElement{
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Name: start.Name,
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})
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for _, t := range tokens {
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if err := e.EncodeToken(t); err != nil {
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return fmt.Errorf("encode token: %w", err)
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}
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}
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// flush to ensure tokens are written
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return e.Flush()
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}
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