41 lines
789 B
Solidity
41 lines
789 B
Solidity
pragma solidity ^0.4.24;
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import "../Roles.sol";
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contract SignerRole {
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using Roles for Roles.Role;
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event SignerAdded(address indexed account);
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event SignerRemoved(address indexed account);
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Roles.Role private signers;
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constructor() public {
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signers.add(msg.sender);
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}
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modifier onlySigner() {
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require(isSigner(msg.sender));
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_;
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}
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function isSigner(address _account) public view returns (bool) {
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return signers.has(_account);
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}
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function addSigner(address _account) public onlySigner {
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signers.add(_account);
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emit SignerAdded(_account);
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}
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function renounceSigner() public {
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signers.remove(msg.sender);
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}
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function _removeSigner(address _account) internal {
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signers.remove(_account);
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emit SignerRemoved(_account);
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}
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}
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