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packer.go
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packer.go
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package jwt
import "strings"
type PackSettings struct {
SignatureKey string
EncryptionKey string
}
type UnpackSettings struct {
SignatureKey string
DecryptionKey string
}
func Pack(token Token, settings PackSettings) (string, error) {
encodedToken, err := Serialize(token)
if err != nil {
return "", err
}
signedToken, err := Sign(encodedToken, settings.SignatureKey)
if err != nil {
return "", err
}
encryptedToken, err := Encrypt(signedToken, settings.EncryptionKey)
if err != nil {
return "", err
}
return encryptedToken, nil
}
func Unpack(packedToken string, settings UnpackSettings) (Token, error) {
decryptedToken, err := Decrypt(packedToken, settings.DecryptionKey)
if err != nil {
return Token{}, err
}
err = CheckSignature(decryptedToken, settings.SignatureKey)
if err != nil {
return Token{}, err
}
separationIndex := strings.LastIndex(decryptedToken, ".")
unsignedToken := decryptedToken[:separationIndex]
token, err := Deserialize(unsignedToken)
if err != nil {
return Token{}, err
}
return token, nil
}