137 lines
3.9 KiB
Go
137 lines
3.9 KiB
Go
package data
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import (
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"encoding/xml"
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"time"
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cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
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oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
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)
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const (
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bktSettingsObject = ".s3-settings"
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bktCORSConfigurationObject = ".s3-cors"
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bktNotificationConfigurationObject = ".s3-notifications"
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VersioningUnversioned = "Unversioned"
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VersioningEnabled = "Enabled"
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VersioningSuspended = "Suspended"
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)
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type (
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// BucketInfo stores basic bucket data.
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BucketInfo struct {
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Name string // container name from system attribute
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Zone string // container zone from system attribute
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CID cid.ID
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Owner user.ID
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Created time.Time
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LocationConstraint string
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ObjectLockEnabled bool
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}
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// ObjectInfo holds S3 object data.
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ObjectInfo struct {
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ID oid.ID
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CID cid.ID
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IsDir bool
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IsDeleteMarker bool
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Bucket string
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Name string
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Size uint64
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ContentType string
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Created time.Time
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CreationEpoch uint64
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HashSum string
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MD5Sum string
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Owner user.ID
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Headers map[string]string
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}
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// NotificationInfo store info to send s3 notification.
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NotificationInfo struct {
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Name string
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Version string
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Size uint64
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HashSum string
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}
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// BucketSettings stores settings such as versioning.
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BucketSettings struct {
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Versioning string `json:"versioning"`
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LockConfiguration *ObjectLockConfiguration `json:"lock_configuration"`
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}
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// CORSConfiguration stores CORS configuration of a request.
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CORSConfiguration struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CORSConfiguration" json:"-"`
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CORSRules []CORSRule `xml:"CORSRule" json:"CORSRules"`
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}
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// CORSRule stores rules for CORS in a bucket.
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CORSRule struct {
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ID string `xml:"ID,omitempty" json:"ID,omitempty"`
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AllowedHeaders []string `xml:"AllowedHeader" json:"AllowedHeaders"`
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AllowedMethods []string `xml:"AllowedMethod" json:"AllowedMethods"`
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AllowedOrigins []string `xml:"AllowedOrigin" json:"AllowedOrigins"`
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ExposeHeaders []string `xml:"ExposeHeader" json:"ExposeHeaders"`
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MaxAgeSeconds int `xml:"MaxAgeSeconds,omitempty" json:"MaxAgeSeconds,omitempty"`
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}
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)
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// NotificationInfoFromObject creates new NotificationInfo from ObjectInfo.
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func NotificationInfoFromObject(objInfo *ObjectInfo, md5Enabled bool) *NotificationInfo {
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return &NotificationInfo{
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Name: objInfo.Name,
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Version: objInfo.VersionID(),
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Size: objInfo.Size,
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HashSum: objInfo.ETag(md5Enabled),
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}
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}
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// SettingsObjectName is a system name for a bucket settings file.
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func (b *BucketInfo) SettingsObjectName() string { return bktSettingsObject }
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// CORSObjectName returns a system name for a bucket CORS configuration file.
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func (b *BucketInfo) CORSObjectName() string { return bktCORSConfigurationObject }
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func (b *BucketInfo) NotificationConfigurationObjectName() string {
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return bktNotificationConfigurationObject
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}
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// VersionID returns object version from ObjectInfo.
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func (o *ObjectInfo) VersionID() string { return o.ID.EncodeToString() }
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// NiceName returns object name for cache.
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func (o *ObjectInfo) NiceName() string { return o.Bucket + "/" + o.Name }
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// Address returns object address.
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func (o *ObjectInfo) Address() oid.Address {
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var addr oid.Address
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addr.SetContainer(o.CID)
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addr.SetObject(o.ID)
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return addr
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}
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func (o *ObjectInfo) ETag(md5Enabled bool) string {
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if md5Enabled && len(o.MD5Sum) > 0 {
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return o.MD5Sum
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}
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return o.HashSum
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}
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func (b BucketSettings) Unversioned() bool {
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return b.Versioning == VersioningUnversioned
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}
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func (b BucketSettings) VersioningEnabled() bool {
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return b.Versioning == VersioningEnabled
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}
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func (b BucketSettings) VersioningSuspended() bool {
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return b.Versioning == VersioningSuspended
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}
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