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91 lines
2.3 KiB
91 lines
2.3 KiB
pragma solidity ^0.4.24;
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import "../ownership/Ownable.sol";
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import "../ownership/rbac/RBAC.sol";
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/**
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* @title Whitelist
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* @dev The Whitelist contract has a whitelist of addresses, and provides basic authorization control functions.
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* This simplifies the implementation of "user permissions".
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*/
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contract Whitelist is Ownable, RBAC {
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string public constant ROLE_WHITELISTED = "whitelist";
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/**
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* @dev Throws if operator is not whitelisted.
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* @param _operator address
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*/
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modifier onlyIfWhitelisted(address _operator) {
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checkRole(_operator, ROLE_WHITELISTED);
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_;
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}
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/**
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* @dev add an address to the whitelist
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* @param _operator address
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* @return true if the address was added to the whitelist, false if the address was already in the whitelist
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*/
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function addAddressToWhitelist(address _operator)
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onlyOwner
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public
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{
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addRole(_operator, ROLE_WHITELISTED);
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}
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/**
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* @dev getter to determine if address is in whitelist
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*/
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function whitelist(address _operator)
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public
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view
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returns (bool)
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{
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return hasRole(_operator, ROLE_WHITELISTED);
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}
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/**
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* @dev add addresses to the whitelist
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* @param _operators addresses
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* @return true if at least one address was added to the whitelist,
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* false if all addresses were already in the whitelist
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*/
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function addAddressesToWhitelist(address[] _operators)
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onlyOwner
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public
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{
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for (uint256 i = 0; i < _operators.length; i++) {
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addAddressToWhitelist(_operators[i]);
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}
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}
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/**
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* @dev remove an address from the whitelist
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* @param _operator address
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* @return true if the address was removed from the whitelist,
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* false if the address wasn't in the whitelist in the first place
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*/
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function removeAddressFromWhitelist(address _operator)
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onlyOwner
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public
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{
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removeRole(_operator, ROLE_WHITELISTED);
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}
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/**
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* @dev remove addresses from the whitelist
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* @param _operators addresses
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* @return true if at least one address was removed from the whitelist,
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* false if all addresses weren't in the whitelist in the first place
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*/
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function removeAddressesFromWhitelist(address[] _operators)
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onlyOwner
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public
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{
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for (uint256 i = 0; i < _operators.length; i++) {
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removeAddressFromWhitelist(_operators[i]);
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}
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}
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}
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