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Added InstaMappings

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This commit is contained in:
Thrilok Kumar 2021-05-04 17:17:04 +05:30
parent d6af759404
commit 0d60d29f80
1 changed files with 58 additions and 0 deletions
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contracts/mapping/InstaMappings.sol Normal file
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pragma solidity ^0.7.0;
pragma experimental ABIEncoderV2;
import { AccessControl } from "@openzeppelin/contracts/access/AccessControl.sol";
interface IndexInterface {
function master() external view returns (address);
}
contract InstaMappings is AccessControl {
IndexInterface public constant instaIndex = IndexInterface(0x2971AdFa57b20E5a416aE5a708A8655A9c74f723);
bytes32 public constant ADMIN_ROLE = keccak256("ADMIN_ROLE");
function setMaster() public {
require(msg.sender == address(this), "msg.sender is not this contract");
uint256 adminCount = getRoleMemberCount(DEFAULT_ADMIN_ROLE);
require(adminCount == 1, "setMaster::Wrong-admin-count");
address currentMaster = getRoleMember(DEFAULT_ADMIN_ROLE, 0);
address master = instaIndex.master();
if (currentMaster != master) {
grantRole(DEFAULT_ADMIN_ROLE, master);
revokeRole(DEFAULT_ADMIN_ROLE, currentMaster);
}
adminCount = getRoleMemberCount(DEFAULT_ADMIN_ROLE);
require(adminCount == 1, "setMaster::Wrong-admin-count");
require(hasRole(DEFAULT_ADMIN_ROLE, master), "setMaster::InstaIndex-master-not-set");
}
constructor() {
_setupRole(DEFAULT_ADMIN_ROLE, instaIndex.master());
_setRoleAdmin(DEFAULT_ADMIN_ROLE, ADMIN_ROLE);
_setupRole(ADMIN_ROLE, address(this));
}
function getMappingContractRole(address mappingContract) public pure returns (bytes32 role){
assembly {
role := mload(add(mappingContract, 32))
}
}
function hasRole(address mappingAddr, address account) public view returns (bool) {
return super.hasRole(getMappingContractRole(mappingAddr), account);
}
function grantRole(address mappingAddr, address account) public {
super.grantRole(getMappingContractRole(mappingAddr), account);
}
function revokeRole(address mappingAddr, address account) public {
super.revokeRole(getMappingContractRole(mappingAddr), account);
}
function renounceRole(address mappingAddr, address account) public {
super.renounceRole(getMappingContractRole(mappingAddr), account);
}
}