Source code for virgil_sdk.client.raw_signature

# Copyright (C) 2016-2019 Virgil Security Inc.
#
# Lead Maintainer: Virgil Security Inc. <support@virgilsecurity.com>
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from virgil_sdk.utils import Utils


class RawSignature(object):
    """
    RawSignature provides signature for RawSignedModel.
    """

    def __init__(
        self,
        signer,  # type: str
        signature,  # type: Union[bytes, bytearray]
        signature_snapshot=None  # type: Union[bytes, bytearray]
    ):
        self.__signer = signer
        self.__snapshot = signature_snapshot
        self.__signature = signature

    def __str__(self):
        return str(self.to_json())

    def __unicode__(self):
        return str(self.to_json())

    def to_json(self):
        """RawSignature json representation."""
        res = {
            "signer": self.signer,
            "signature": Utils.b64encode(bytearray(self.signature))
        }
        if self.snapshot:
            res["snapshot"] = Utils.b64encode(bytearray(self.snapshot))
        return res

    @property
    def signer(self):
        """
        Signer id. It must be unique among the RawSignedModel signatures.
        """
        return self.__signer

    @property
    def snapshot(self):
        """
        Additional data.
        """
        return self.__snapshot

    @property
    def signature(self):
        """
        Signature data.
        """
        return self.__signature