frostfs-api-go/session/types.go

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package session
import (
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"context"
"crypto/ecdsa"
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"github.com/nspcc-dev/neofs-api-go/internal"
)
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// PrivateToken is an interface of session private part.
type PrivateToken interface {
// PublicKey must return a binary representation of session public key.
PublicKey() []byte
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// Sign must return the signature of passed data.
//
// Resulting signature must be verified by crypto.Verify function
// with the session public key.
Sign([]byte) ([]byte, error)
}
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// PrivateTokenSource is an interface of private token storage with read access.
type PrivateTokenSource interface {
// Fetch must return the storage record corresponding to the passed key.
//
// Resulting error must be ErrPrivateTokenNotFound if there is no corresponding record.
Fetch(TokenID) (PrivateToken, error)
}
// PrivateTokenStore is an interface of the storage of private tokens addressable by TokenID.
type PrivateTokenStore interface {
PrivateTokenSource
// Store must save passed private token in the storage under the given key.
//
// Resulting error must be nil if private token was stored successfully.
Store(TokenID, PrivateToken) error
}
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// KeyStore is an interface of the storage of public keys addressable by OwnerID,
type KeyStore interface {
// Get must return the storage record corresponding to the passed key.
//
// Resulting error must be ErrKeyNotFound if there is no corresponding record.
Get(context.Context, OwnerID) ([]*ecdsa.PublicKey, error)
}
const ErrPrivateTokenNotFound = internal.Error("private token not found")
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const (
// ErrWrongFirstEpoch is raised when passed Token contains wrong first epoch.
// First epoch is an epoch since token is valid
ErrWrongFirstEpoch = internal.Error("wrong first epoch")
// ErrWrongLastEpoch is raised when passed Token contains wrong last epoch.
// Last epoch is an epoch until token is valid
ErrWrongLastEpoch = internal.Error("wrong last epoch")
// ErrWrongOwner is raised when passed Token contains wrong OwnerID.
ErrWrongOwner = internal.Error("wrong owner")
// ErrEmptyPublicKey is raised when passed Token contains wrong public key.
ErrEmptyPublicKey = internal.Error("empty public key")
// ErrWrongObjectsCount is raised when passed Token contains wrong objects count.
ErrWrongObjectsCount = internal.Error("wrong objects count")
// ErrWrongObjects is raised when passed Token contains wrong object ids.
ErrWrongObjects = internal.Error("wrong objects")
// ErrInvalidSignature is raised when wrong signature is passed to VerificationHeader.VerifyData().
ErrInvalidSignature = internal.Error("invalid signature")
)