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encapstulate message hashing as views

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This commit is contained in:
Ricardo Guilherme Schmidt 2018-04-26 01:48:14 -03:00
parent 6fbb3b703a
commit 3ac4be7bbd
1 changed files with 41 additions and 6 deletions
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47
contracts/communication/MessageTribute.sol
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@ -69,9 +69,7 @@ contract MessageTribute is MessageSigned {
require(_timeLimit <= block.timestamp);
address grantor = recoverAddress(
getSignHash(
keccak256(
address(this),
bytes4(keccak256("grantAudience(bytes32,bool,bool,bytes32)")),
getGrantAudienceHash(
keccak256(_requesterSignature),
_approve,
_waive,
@ -86,9 +84,7 @@ contract MessageTribute is MessageSigned {
granted[hashedSecret] = true;
address requester = recoverAddress(
getSignHash(
keccak256(
address(this),
bytes4(keccak256("requestAudience(address,bytes32,uint256)")),
getRequestAudienceHash(
grantor,
hashedSecret,
_timeLimit
@ -96,6 +92,7 @@ contract MessageTribute is MessageSigned {
),
_requesterSignature
);
require(lastAudienceDeniedTimestamp[grantor][requester] + 3 days <= now);
if(!_approve)
lastAudienceDeniedTimestamp[grantor][requester] = block.timestamp;
@ -111,6 +108,44 @@ contract MessageTribute is MessageSigned {
emit AudienceGranted(grantor, requester, _approve);
}
function getGrantAudienceHash(
bytes32 _requesterSignatureHash,
bool _approve,
bool _waive,
bytes32 _secret
)
public
view
returns(bytes32)
{
return keccak256(
address(this),
bytes4(keccak256("grantAudience(bytes32,bool,bool,bytes32)")),
_requesterSignatureHash,
_approve,
_waive,
_secret
);
}
function getRequestAudienceHash(
address grantor,
bytes32 hashedSecret,
uint _timeLimit
)
public
view
returns(bytes32)
{
return keccak256(
address(this),
bytes4(keccak256("requestAudience(address,bytes32,uint256)")),
grantor,
hashedSecret,
_timeLimit
);
}
/**
* @notice Determine if msg.sender ha enough funds to chat with `_to`
* @param _to Account `msg.sender` wishes to talk to