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service: change constant errors

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This commit:

  * moves defined errors to a separate file;

  * renames ErrEmptyToken to ErrNilToken;

  * merges ErrZeroTTL and ErrIncorrectTTL into single ErrInvalidTTL.
This commit is contained in:
Leonard Lyubich 2020-05-04 13:04:10 +03:00
parent e3cab218dc
commit fc177c4ce3
6 changed files with 31 additions and 37 deletions
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12
service/token.go
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@ -4,7 +4,6 @@ import (
"crypto/ecdsa"
"encoding/binary"
"github.com/nspcc-dev/neofs-api-go/internal"
"github.com/nspcc-dev/neofs-api-go/refs"
crypto "github.com/nspcc-dev/neofs-crypto"
)
@ -62,9 +61,6 @@ type SessionToken interface {
SignatureContainer
}
// ErrEmptyToken is raised when passed Token is nil.
const ErrEmptyToken = internal.Error("token is empty")
var _ SessionToken = (*Token)(nil)
var tokenEndianness = binary.BigEndian
@ -183,11 +179,11 @@ func verificationTokenData(token SessionToken) []byte {
// SignToken calculates and stores the signature of token information.
//
// If passed token is nil, ErrEmptyToken returns.
// If passed token is nil, ErrNilToken returns.
// If passed private key is nil, crypto.ErrEmptyPrivateKey returns.
func SignToken(token SessionToken, key *ecdsa.PrivateKey) error {
if token == nil {
return ErrEmptyToken
return ErrNilToken
} else if key == nil {
return crypto.ErrEmptyPrivateKey
}
@ -204,11 +200,11 @@ func SignToken(token SessionToken, key *ecdsa.PrivateKey) error {
// VerifyTokenSignature checks if token was signed correctly.
//
// If passed token is nil, ErrEmptyToken returns.
// If passed token is nil, ErrNilToken returns.
// If passed public key is nil, crypto.ErrEmptyPublicKey returns.
func VerifyTokenSignature(token SessionToken, key *ecdsa.PublicKey) error {
if token == nil {
return ErrEmptyToken
return ErrNilToken
} else if key == nil {
return crypto.ErrEmptyPublicKey
}