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enable upgradability opt in upgradability for accounts of registry

This commit is contained in:
Ricardo Guilherme Schmidt 2018-05-06 11:21:40 -03:00 committed by Barry Gitarts
parent 5874d599cc
commit 91a6fc120d
1 changed files with 62 additions and 7 deletions
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69
contracts/registry/ENSSubdomainRegistry.sol
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@ -14,7 +14,8 @@ contract ENSSubdomainRegistry is Controlled {
ERC20Token public token;
ENS public ens;
PublicResolver public resolver;
address public parentRegistry;
uint256 public releaseDelay = 1 years;
mapping (bytes32 => Domain) public domains;
mapping (bytes32 => Account) public accounts;
@ -37,17 +38,20 @@ contract ENSSubdomainRegistry is Controlled {
* @param _token fee token base
* @param _ens Ethereum Name Service root address
* @param _resolver Default resolver to use in initial settings
* @param _parentRegistry Address of old registry (if any) for account migration.
*/
constructor(
ERC20Token _token,
ENS _ens,
PublicResolver _resolver
PublicResolver _resolver,
address _parentRegistry
)
public
{
token = _token;
ens = _ens;
resolver = _resolver;
parentRegistry = _parentRegistry;
}
/**
@ -120,13 +124,19 @@ contract ENSSubdomainRegistry is Controlled {
require(msg.sender == ens.owner(subdomainHash));
Account memory account = accounts[subdomainHash];
require(account.creationTime > 0);
require(account.creationTime + releaseDelay > block.timestamp);
bool isDomainController = ens.owner(_domainHash) == address(this);
require(
account.creationTime + releaseDelay > block.timestamp ||
!isDomainController //user can optout anytime if ens domainHash is unowned
);
delete accounts[subdomainHash];
ens.setSubnodeOwner(_domainHash, _userHash, address(this));
ens.setResolver(subdomainHash, address(0));
ens.setSubnodeOwner(_domainHash, _userHash, address(0));
if(isDomainController) {
ens.setSubnodeOwner(_domainHash, _userHash, address(this));
ens.setResolver(subdomainHash, address(0));
ens.setSubnodeOwner(_domainHash, _userHash, address(0));
}
require(token.transfer(msg.sender, account.tokenBalance));
emit Released(subdomainHash);
}
@ -195,5 +205,50 @@ contract ENSSubdomainRegistry is Controlled {
{
resolver = PublicResolver(_resolver);
}
/**
* @notice Migrate account to new registry
* @param _newRegistry new registry address
* @param _userHash `msg.sender` owned subdomain hash
* @param _domianHash choosen contract owned domain hash
**/
function migrateTo(
ENSSubdomainRegistry _newRegistry,
bytes32 _userHash,
bytes32 _domainHash
)
external
{
require(ens.owner(_domainHash) == address(_newRegistry));
require(address(this) == _newRegistry.parentRegistry());
bytes32 subdomainHash = keccak256(_userHash, _domainHash);
require(msg.sender == ens.owner(subdomainHash));
Account memory account = accounts[subdomainHash];
delete accounts[subdomainHash];
token.approve(_newRegistry, account.tokenBalance);
_newRegistry.migrateFromParent(_userHash, _domainHash, account.tokenBalance, account.creationTime);
}
/**
* @dev callable only by parent registry for continue user opt-in migration
* @param _userHash any subdomain hash coming from parent
* @param _domianHash choosen contract owned domain hash
* @param _tokenBalance amount being transferred
* @param _creationTime any value coming from parent
**/
function migrateFromParent(
bytes32 _userHash,
bytes32 _domainHash,
uint256 _tokenBalance,
uint256 _creationTime
)
external
{
require(msg.sender == parentRegistry);
bytes32 subdomainHash = keccak256(_userHash, _domainHash);
accounts[subdomainHash] = Account(_tokenBalance, _creationTime);
require(token.transferFrom(parentRegistry, address(this), _tokenBalance));
}
}