153 lines
4 KiB
Go
153 lines
4 KiB
Go
package session
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import (
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"github.com/nspcc-dev/neofs-api-go/v2/refs"
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"github.com/nspcc-dev/neofs-api-go/v2/session"
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cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
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)
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// ContainerContext represents NeoFS API v2-compatible
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// context of the container session.
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//
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// It is a wrapper over session.ContainerSessionContext
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// which allows to abstract from details of the message
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// structure.
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type ContainerContext session.ContainerSessionContext
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// NewContainerContext creates and returns blank ContainerSessionContext.
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//
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// Defaults:
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// - not bound to any operation;
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// - applied to all containers.
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func NewContainerContext() *ContainerContext {
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v2 := new(session.ContainerSessionContext)
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v2.SetWildcard(true)
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return NewContainerContextFromV2(v2)
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}
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// NewContainerContextFromV2 wraps session.ContainerSessionContext
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// into ContainerContext.
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func NewContainerContextFromV2(v *session.ContainerSessionContext) *ContainerContext {
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return (*ContainerContext)(v)
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}
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// ToV2 converts ContainerContext to session.ContainerSessionContext
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// message structure.
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func (x *ContainerContext) ToV2() *session.ContainerSessionContext {
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return (*session.ContainerSessionContext)(x)
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}
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// ApplyTo specifies which container the ContainerContext applies to.
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//
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// If id is nil, ContainerContext is applied to all containers.
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func (x *ContainerContext) ApplyTo(id *cid.ID) {
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v2 := (*session.ContainerSessionContext)(x)
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var cidV2 *refs.ContainerID
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if id != nil {
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var c refs.ContainerID
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id.WriteToV2(&c)
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cidV2 = &c
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}
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v2.SetWildcard(id == nil)
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v2.SetContainerID(cidV2)
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}
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// ApplyToAllContainers is a helper function that conveniently
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// applies ContainerContext to all containers.
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func ApplyToAllContainers(c *ContainerContext) {
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c.ApplyTo(nil)
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}
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// Container returns identifier of the container
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// to which the ContainerContext applies.
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//
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// Returns nil if ContainerContext is applied to
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// all containers.
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func (x *ContainerContext) Container() *cid.ID {
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v2 := (*session.ContainerSessionContext)(x)
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if v2.Wildcard() {
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return nil
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}
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cidV2 := v2.ContainerID()
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if cidV2 == nil {
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return nil
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}
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var cID cid.ID
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_ = cID.ReadFromV2(*cidV2)
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return &cID
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}
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func (x *ContainerContext) forVerb(v session.ContainerSessionVerb) {
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(*session.ContainerSessionContext)(x).
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SetVerb(v)
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}
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func (x *ContainerContext) isForVerb(v session.ContainerSessionVerb) bool {
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return (*session.ContainerSessionContext)(x).
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Verb() == v
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}
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// ForPut binds the ContainerContext to
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// PUT operation.
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func (x *ContainerContext) ForPut() {
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x.forVerb(session.ContainerVerbPut)
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}
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// IsForPut checks if ContainerContext is bound to
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// PUT operation.
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func (x *ContainerContext) IsForPut() bool {
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return x.isForVerb(session.ContainerVerbPut)
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}
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// ForDelete binds the ContainerContext to
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// DELETE operation.
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func (x *ContainerContext) ForDelete() {
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x.forVerb(session.ContainerVerbDelete)
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}
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// IsForDelete checks if ContainerContext is bound to
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// DELETE operation.
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func (x *ContainerContext) IsForDelete() bool {
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return x.isForVerb(session.ContainerVerbDelete)
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}
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// ForSetEACL binds the ContainerContext to
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// SETEACL operation.
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func (x *ContainerContext) ForSetEACL() {
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x.forVerb(session.ContainerVerbSetEACL)
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}
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// IsForSetEACL checks if ContainerContext is bound to
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// SETEACL operation.
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func (x *ContainerContext) IsForSetEACL() bool {
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return x.isForVerb(session.ContainerVerbSetEACL)
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}
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// Marshal marshals ContainerContext into a protobuf binary form.
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func (x *ContainerContext) Marshal() ([]byte, error) {
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return x.ToV2().StableMarshal(nil)
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}
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// Unmarshal unmarshals protobuf binary representation of ContainerContext.
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func (x *ContainerContext) Unmarshal(data []byte) error {
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return x.ToV2().Unmarshal(data)
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}
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// MarshalJSON encodes ContainerContext to protobuf JSON format.
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func (x *ContainerContext) MarshalJSON() ([]byte, error) {
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return x.ToV2().MarshalJSON()
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}
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// UnmarshalJSON decodes ContainerContext from protobuf JSON format.
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func (x *ContainerContext) UnmarshalJSON(data []byte) error {
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return x.ToV2().UnmarshalJSON(data)
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}
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