118 lines
3.1 KiB
Solidity
118 lines
3.1 KiB
Solidity
/*
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Copyright 2019 ZeroEx Intl.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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pragma solidity ^0.5.9;
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import "../archive/Ownable.sol";
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import "../src/interfaces/IAuthorizable.sol";
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contract MixinAuthorizable is
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Ownable,
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IAuthorizable
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{
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/// @dev Only authorized addresses can invoke functions with this modifier.
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modifier onlyAuthorized {
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require(
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authorized[msg.sender],
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"SENDER_NOT_AUTHORIZED"
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);
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_;
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}
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mapping (address => bool) public authorized;
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address[] public authorities;
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/// @dev Authorizes an address.
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/// @param target Address to authorize.
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function addAuthorizedAddress(address target)
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external
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onlyOwner
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{
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require(
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!authorized[target],
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"TARGET_ALREADY_AUTHORIZED"
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);
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authorized[target] = true;
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authorities.push(target);
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emit AuthorizedAddressAdded(target, msg.sender);
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}
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/// @dev Removes authorizion of an address.
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/// @param target Address to remove authorization from.
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function removeAuthorizedAddress(address target)
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external
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onlyOwner
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{
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require(
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authorized[target],
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"TARGET_NOT_AUTHORIZED"
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);
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delete authorized[target];
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for (uint256 i = 0; i < authorities.length; i++) {
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if (authorities[i] == target) {
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authorities[i] = authorities[authorities.length - 1];
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authorities.length -= 1;
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break;
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}
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}
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emit AuthorizedAddressRemoved(target, msg.sender);
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}
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/// @dev Removes authorizion of an address.
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/// @param target Address to remove authorization from.
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/// @param index Index of target in authorities array.
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function removeAuthorizedAddressAtIndex(
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address target,
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uint256 index
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)
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external
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onlyOwner
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{
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require(
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authorized[target],
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"TARGET_NOT_AUTHORIZED"
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);
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require(
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index < authorities.length,
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"INDEX_OUT_OF_BOUNDS"
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);
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require(
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authorities[index] == target,
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"AUTHORIZED_ADDRESS_MISMATCH"
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);
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delete authorized[target];
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authorities[index] = authorities[authorities.length - 1];
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authorities.length -= 1;
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emit AuthorizedAddressRemoved(target, msg.sender);
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}
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/// @dev Gets all authorized addresses.
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/// @return Array of authorized addresses.
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function getAuthorizedAddresses()
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external
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view
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returns (address[] memory)
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{
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return authorities;
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}
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}
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