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from ._eip712_base import (
is_address,
is_block_number,
is_chain_id,
is_cs_pubkey,
is_eth_privkey,
is_signature,
recover,
sign,
)
[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)