Source code for autobahn.xbr._eip712_member_login

###############################################################################
#
# The MIT License (MIT)
#
# Copyright (c) Crossbar.io Technologies GmbH
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
###############################################################################

from ._eip712_base import sign, recover, is_address, is_block_number, \
    is_chain_id, is_eth_privkey, is_signature, is_cs_pubkey


[docs]def _create_eip712_member_login(chainId: int, verifyingContract: bytes, member: bytes, loggedIn: int, timestamp: int, member_email: str, client_pubkey: bytes) -> dict: """ :param chainId: :param blockNumber: :param verifyingContract: :param member: :param timestamp: :param member_email: :param client_pubkey: :return: """ assert is_chain_id(chainId) assert is_address(verifyingContract) assert is_address(member) assert is_block_number(loggedIn) assert type(timestamp) == int assert type(member_email) == str assert is_cs_pubkey(client_pubkey) data = { 'types': { 'EIP712Domain': [ { 'name': 'name', 'type': 'string' }, { 'name': 'version', 'type': 'string' }, ], 'EIP712MemberLogin': [ { 'name': 'chainId', 'type': 'uint256' }, { 'name': 'verifyingContract', 'type': 'address' }, { 'name': 'member', 'type': 'address' }, { 'name': 'loggedIn', 'type': 'uint256' }, { 'name': 'timestamp', 'type': 'uint64' }, { 'name': 'member_email', 'type': 'string' }, { 'name': 'client_pubkey', 'type': 'bytes32', }, ] }, 'primaryType': 'EIP712MemberLogin', 'domain': { 'name': 'XBR', 'version': '1', }, 'message': { 'chainId': chainId, 'verifyingContract': verifyingContract, 'member': member, 'loggedIn': loggedIn, 'timestamp': timestamp, 'member_email': member_email, 'client_pubkey': client_pubkey, } } return data
[docs]def sign_eip712_member_login(eth_privkey: bytes, chainId: int, verifyingContract: bytes, member: bytes, loggedIn: int, timestamp: int, member_email: str, client_pubkey: bytes) -> bytes: """ :param eth_privkey: Ethereum address of buyer (a raw 20 bytes Ethereum address). :type eth_privkey: bytes :return: The signature according to EIP712 (32+32+1 raw bytes). :rtype: bytes """ assert is_eth_privkey(eth_privkey) data = _create_eip712_member_login(chainId, verifyingContract, member, loggedIn, timestamp, member_email, client_pubkey) return sign(eth_privkey, data)
[docs]def recover_eip712_member_login(chainId: int, verifyingContract: bytes, member: bytes, loggedIn: int, timestamp: int, member_email: str, client_pubkey: bytes, signature: bytes) -> bytes: """ Recover the signer address the given EIP712 signature was signed with. :return: The (computed) signer address the signature was signed with. :rtype: bytes """ assert is_signature(signature) data = _create_eip712_member_login(chainId, verifyingContract, member, loggedIn, timestamp, member_email, client_pubkey) return recover(data, signature)