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author | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-07-05 21:04:01 +0800 |
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committer | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-07-05 21:04:01 +0800 |
commit | 1ee2d6ed54b6159d1e8952692f4ddba0ebd65012 (patch) | |
tree | 1cebf47acf4fff2352a709035c141ec7ffdb8353 /packages/contracts/src/2.0.0/protocol/AssetProxy/MixinAuthorizable.sol | |
parent | 1eba78e20ac468d3b4d6ebe8fd91eb5277577e0a (diff) | |
parent | 5176d929fa6d3c6ce414448ea2441bd450f04e3c (diff) | |
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Merge branch 'v2-prototype' into v2-contract-wrappers-WIP
Diffstat (limited to 'packages/contracts/src/2.0.0/protocol/AssetProxy/MixinAuthorizable.sol')
-rw-r--r-- | packages/contracts/src/2.0.0/protocol/AssetProxy/MixinAuthorizable.sol | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/packages/contracts/src/2.0.0/protocol/AssetProxy/MixinAuthorizable.sol b/packages/contracts/src/2.0.0/protocol/AssetProxy/MixinAuthorizable.sol new file mode 100644 index 000000000..3b9584a44 --- /dev/null +++ b/packages/contracts/src/2.0.0/protocol/AssetProxy/MixinAuthorizable.sol @@ -0,0 +1,118 @@ +/* + + Copyright 2018 ZeroEx Intl. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +*/ + +pragma solidity ^0.4.24; +pragma experimental ABIEncoderV2; + +import "../../utils/Ownable/Ownable.sol"; +import "./mixins/MAuthorizable.sol"; + +contract MixinAuthorizable is + Ownable, + MAuthorizable +{ + + /// @dev Only authorized addresses can invoke functions with this modifier. + modifier onlyAuthorized { + require( + authorized[msg.sender], + "SENDER_NOT_AUTHORIZED" + ); + _; + } + + mapping (address => bool) public authorized; + address[] public authorities; + + /// @dev Authorizes an address. + /// @param target Address to authorize. + function addAuthorizedAddress(address target) + external + onlyOwner + { + require( + !authorized[target], + "TARGET_ALREADY_AUTHORIZED" + ); + + authorized[target] = true; + authorities.push(target); + emit AuthorizedAddressAdded(target, msg.sender); + } + + /// @dev Removes authorizion of an address. + /// @param target Address to remove authorization from. + function removeAuthorizedAddress(address target) + external + onlyOwner + { + require( + authorized[target], + "TARGET_NOT_AUTHORIZED" + ); + + delete authorized[target]; + for (uint256 i = 0; i < authorities.length; i++) { + if (authorities[i] == target) { + authorities[i] = authorities[authorities.length - 1]; + authorities.length -= 1; + break; + } + } + emit AuthorizedAddressRemoved(target, msg.sender); + } + + /// @dev Removes authorizion of an address. + /// @param target Address to remove authorization from. + /// @param index Index of target in authorities array. + function removeAuthorizedAddressAtIndex( + address target, + uint256 index + ) + external + onlyOwner + { + require( + authorized[target], + "TARGET_NOT_AUTHORIZED" + ); + require( + index < authorities.length, + "INDEX_OUT_OF_BOUNDS" + ); + require( + authorities[index] == target, + "AUTHORIZED_ADDRESS_MISMATCH" + ); + + delete authorized[target]; + authorities[index] = authorities[authorities.length - 1]; + authorities.length -= 1; + emit AuthorizedAddressRemoved(target, msg.sender); + } + + /// @dev Gets all authorized addresses. + /// @return Array of authorized addresses. + function getAuthorizedAddresses() + external + view + returns (address[] memory) + { + return authorities; + } +} |