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better protect user funds by backup owner

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Ricardo Guilherme Schmidt 2018-05-15 19:35:38 -03:00 committed by Barry Gitarts
parent b45c2967ce
commit c4e6a396e8
1 changed files with 13 additions and 6 deletions
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19
contracts/registry/ENSSubdomainRegistry.sol
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@ -131,7 +131,7 @@ contract ENSSubdomainRegistry is Controlled {
require(account.creationTime + releaseDelay >= block.timestamp);
ens.setSubnodeOwner(_domainHash, _userHash, address(this));
ens.setResolver(subdomainHash, address(0));
ens.setSubnodeOwner(_domainHash, _userHash, address(0));
ens.setOwner(subdomainHash, address(0));
} else {
require(msg.sender == account.backupOwner);
}
@ -204,10 +204,17 @@ contract ENSSubdomainRegistry is Controlled {
* @notice updates backup owner useful in case of opt-out domain move to new registry.
* @param _subdomainHash hash of the subdomain regarding this
**/
function updateBackupOwner(bytes32 _subdomainHash) external {
require(accounts[_subdomainHash].creationTime > 0);
require(msg.sender == ens.owner(_subdomainHash));
accounts[_subdomainHash].backupOwner = msg.sender;
function updateBackupOwner(
bytes32 _userHash,
bytes32 _domainHash
)
external
{
bytes32 subdomainHash = keccak256(_domainHash, _userHash);
require(accounts[subdomainHash].creationTime > 0);
require(msg.sender == ens.owner(subdomainHash));
require(ens.owner(_domainHash) == address(this));
accounts[subdomainHash].backupOwner = msg.sender;
}
/**
@ -239,7 +246,7 @@ contract ENSSubdomainRegistry is Controlled {
require(ens.owner(_domainHash) == address(_newRegistry));
require(address(this) == _newRegistry.parentRegistry());
bytes32 subdomainHash = keccak256(_domainHash, _userHash);
require(msg.sender == ens.owner(subdomainHash));
require(msg.sender == accounts[subdomainHash].backupOwner);
Account memory account = accounts[subdomainHash];
delete accounts[subdomainHash];
token.approve(_newRegistry, account.tokenBalance);