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snt-gas-relay
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Updating IdentityGasRelay

This commit is contained in:
Richard Ramos 2018-05-16 11:59:28 -04:00
parent b9b1197c8d
commit 8c3933e4c3
1 changed files with 13 additions and 17 deletions
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30
contracts/identity/IdentityGasRelay.sol
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@ -1,6 +1,6 @@
pragma solidity ^0.4.21;
import "./IdentityKernel.sol";
import "./Identity.sol";
import "../common/MessageSigned.sol";
import "../token/ERC20Token.sol";
@ -9,7 +9,7 @@ import "../token/ERC20Token.sol";
* @author Ricardo Guilherme Schmidt (Status Research & Development GmbH)
* @notice enables economic abstraction for Identity
*/
contract IdentityGasRelay is IdentityKernel, MessageSigned {
contract IdentityGasRelay is Identity {
bytes4 public constant MSG_CALL_PREFIX = bytes4(keccak256("callGasRelay(address,uint256,bytes32,uint256,uint256,address)"));
bytes4 public constant MSG_DEPLOY_PREFIX = bytes4(keccak256("deployGasRelay(uint256,bytes32,uint256,uint256,address)"));
@ -27,7 +27,7 @@ contract IdentityGasRelay is IdentityKernel, MessageSigned {
* @param _gasToken token being used for paying `msg.sender`
* @param _messageSignatures rsv concatenated ethereum signed message signatures required
*/
modifier gasRelayed (
modifier executeGasRelayed (
bytes32 _messageHash,
uint256 _requiredPurpose,
uint _nonce,
@ -56,11 +56,6 @@ contract IdentityGasRelay is IdentityKernel, MessageSigned {
//executes transaction
_;
//signal execution to event listeners
emit ExecutedGasRelayed(
_messageHash
);
//refund gas used using contract held ERC20 tokens or ETH
if (_gasPrice > 0) {
uint256 _amount = 21000 + (startGas - gasleft());
@ -96,7 +91,7 @@ contract IdentityGasRelay is IdentityKernel, MessageSigned {
bytes _messageSignatures
)
external
gasRelayed(
executeGasRelayed(
callGasRelayHash(
_to,
_value,
@ -115,7 +110,7 @@ contract IdentityGasRelay is IdentityKernel, MessageSigned {
)
returns (bool success)
{
success = _to.call.value(_value)(_data);
success = _commitCall(_nonce, _to, _value, _data);
}
@ -140,7 +135,7 @@ contract IdentityGasRelay is IdentityKernel, MessageSigned {
bytes _messageSignatures
)
external
gasRelayed(
executeGasRelayed(
deployGasRelayHash(
_value,
keccak256(_data),
@ -158,6 +153,7 @@ contract IdentityGasRelay is IdentityKernel, MessageSigned {
)
returns(address deployedAddress)
{
nonce++;
deployedAddress = doCreate(_value, _data);
emit ContractDeployed(deployedAddress);
}
@ -170,7 +166,7 @@ contract IdentityGasRelay is IdentityKernel, MessageSigned {
* fixes race condition in double transaction for ERC20.
* @param _baseToken token approved for `_to`
* @param _to destination of call
* @param _value call value (ether)
* @param _value call value (in `_baseToken`)
* @param _data call data
* @param _nonce current identity nonce
* @param _gasPrice price in SNT paid back to msg.sender for each gas unit used
@ -190,7 +186,7 @@ contract IdentityGasRelay is IdentityKernel, MessageSigned {
bytes _messageSignatures
)
external
gasRelayed(
executeGasRelayed(
approveAndCallGasRelayHash(
_baseToken,
_to,
@ -212,9 +208,9 @@ contract IdentityGasRelay is IdentityKernel, MessageSigned {
{
require(_baseToken != address(0)); //_baseToken should be something!
require(_to != address(this)); //no management with approveAndCall
require(_to != address(0)); //need valid destination
ERC20Token(_baseToken).approve(_to, _value);
success = _to.call(_data);
success = _commitCall(_nonce, _to, 0, _data);
}
/**
@ -245,7 +241,7 @@ contract IdentityGasRelay is IdentityKernel, MessageSigned {
i
);
require(_currentKey > _lastKey); //assert keys are different
require(isKeyPurpose(_currentKey, _requiredKey));
require(keyHasPurpose(_currentKey, _requiredKey));
_lastKey = _currentKey;
}
return true;
@ -440,4 +436,4 @@ contract IdentityGasRelay is IdentityKernel, MessageSigned {
require(!failed);
}
}
}