709 lines
23 KiB
Solidity
709 lines
23 KiB
Solidity
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///File: @aragon/os/contracts/acl/IACL.sol
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pragma solidity ^0.4.18;
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interface IACL {
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function initialize(address permissionsCreator) public;
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function hasPermission(address who, address where, bytes32 what, bytes how) public view returns (bool);
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}
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///File: @aragon/os/contracts/kernel/IKernel.sol
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pragma solidity ^0.4.18;
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interface IKernel {
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event SetApp(bytes32 indexed namespace, bytes32 indexed name, bytes32 indexed id, address app);
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function acl() public view returns (IACL);
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function hasPermission(address who, address where, bytes32 what, bytes how) public view returns (bool);
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function setApp(bytes32 namespace, bytes32 name, address app) public returns (bytes32 id);
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function getApp(bytes32 id) public view returns (address);
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}
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///File: @aragon/os/contracts/apps/AppStorage.sol
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pragma solidity ^0.4.18;
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contract AppStorage {
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IKernel public kernel;
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bytes32 public appId;
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address internal pinnedCode; // used by Proxy Pinned
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uint256 internal initializationBlock; // used by Initializable
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uint256[95] private storageOffset; // forces App storage to start at after 100 slots
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uint256 private offset;
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}
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///File: @aragon/os/contracts/common/Initializable.sol
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pragma solidity ^0.4.18;
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contract Initializable is AppStorage {
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modifier onlyInit {
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require(initializationBlock == 0);
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_;
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}
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/**
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* @return Block number in which the contract was initialized
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*/
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function getInitializationBlock() public view returns (uint256) {
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return initializationBlock;
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}
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/**
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* @dev Function to be called by top level contract after initialization has finished.
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*/
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function initialized() internal onlyInit {
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initializationBlock = getBlockNumber();
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}
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/**
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* @dev Returns the current block number.
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* Using a function rather than `block.number` allows us to easily mock the block number in
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* tests.
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*/
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function getBlockNumber() internal view returns (uint256) {
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return block.number;
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}
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}
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///File: @aragon/os/contracts/evmscript/IEVMScriptExecutor.sol
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pragma solidity ^0.4.18;
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interface IEVMScriptExecutor {
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function execScript(bytes script, bytes input, address[] blacklist) external returns (bytes);
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}
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///File: @aragon/os/contracts/evmscript/IEVMScriptRegistry.sol
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pragma solidity 0.4.18;
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contract EVMScriptRegistryConstants {
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bytes32 constant public EVMSCRIPT_REGISTRY_APP_ID = keccak256("evmreg.aragonpm.eth");
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bytes32 constant public EVMSCRIPT_REGISTRY_APP = keccak256(keccak256("app"), EVMSCRIPT_REGISTRY_APP_ID);
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}
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interface IEVMScriptRegistry {
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function addScriptExecutor(address executor) external returns (uint id);
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function disableScriptExecutor(uint256 executorId) external;
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function getScriptExecutor(bytes script) public view returns (address);
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}
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///File: @aragon/os/contracts/evmscript/ScriptHelpers.sol
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pragma solidity 0.4.18;
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library ScriptHelpers {
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// To test with JS and compare with actual encoder. Maintaining for reference.
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// t = function() { return IEVMScriptExecutor.at('0x4bcdd59d6c77774ee7317fc1095f69ec84421e49').contract.execScript.getData(...[].slice.call(arguments)).slice(10).match(/.{1,64}/g) }
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// run = function() { return ScriptHelpers.new().then(sh => { sh.abiEncode.call(...[].slice.call(arguments)).then(a => console.log(a.slice(2).match(/.{1,64}/g)) ) }) }
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// This is truly not beautiful but lets no daydream to the day solidity gets reflection features
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function abiEncode(bytes _a, bytes _b, address[] _c) public pure returns (bytes d) {
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return encode(_a, _b, _c);
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}
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function encode(bytes memory _a, bytes memory _b, address[] memory _c) internal pure returns (bytes memory d) {
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// A is positioned after the 3 position words
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uint256 aPosition = 0x60;
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uint256 bPosition = aPosition + 32 * abiLength(_a);
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uint256 cPosition = bPosition + 32 * abiLength(_b);
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uint256 length = cPosition + 32 * abiLength(_c);
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d = new bytes(length);
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assembly {
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// Store positions
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mstore(add(d, 0x20), aPosition)
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mstore(add(d, 0x40), bPosition)
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mstore(add(d, 0x60), cPosition)
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}
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// Copy memory to correct position
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copy(d, getPtr(_a), aPosition, _a.length);
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copy(d, getPtr(_b), bPosition, _b.length);
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copy(d, getPtr(_c), cPosition, _c.length * 32); // 1 word per address
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}
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function abiLength(bytes memory _a) internal pure returns (uint256) {
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// 1 for length +
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// memory words + 1 if not divisible for 32 to offset word
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return 1 + (_a.length / 32) + (_a.length % 32 > 0 ? 1 : 0);
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}
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function abiLength(address[] _a) internal pure returns (uint256) {
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// 1 for length + 1 per item
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return 1 + _a.length;
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}
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function copy(bytes _d, uint256 _src, uint256 _pos, uint256 _length) internal pure {
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uint dest;
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assembly {
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dest := add(add(_d, 0x20), _pos)
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}
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memcpy(dest, _src, _length + 32);
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}
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function getPtr(bytes memory _x) internal pure returns (uint256 ptr) {
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assembly {
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ptr := _x
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}
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}
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function getPtr(address[] memory _x) internal pure returns (uint256 ptr) {
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assembly {
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ptr := _x
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}
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}
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function getSpecId(bytes _script) internal pure returns (uint32) {
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return uint32At(_script, 0);
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}
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function uint256At(bytes _data, uint256 _location) internal pure returns (uint256 result) {
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assembly {
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result := mload(add(_data, add(0x20, _location)))
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}
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}
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function addressAt(bytes _data, uint256 _location) internal pure returns (address result) {
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uint256 word = uint256At(_data, _location);
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assembly {
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result := div(and(word, 0xffffffffffffffffffffffffffffffffffffffff000000000000000000000000),
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0x1000000000000000000000000)
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}
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}
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function uint32At(bytes _data, uint256 _location) internal pure returns (uint32 result) {
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uint256 word = uint256At(_data, _location);
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assembly {
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result := div(and(word, 0xffffffff00000000000000000000000000000000000000000000000000000000),
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0x100000000000000000000000000000000000000000000000000000000)
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}
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}
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function locationOf(bytes _data, uint256 _location) internal pure returns (uint256 result) {
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assembly {
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result := add(_data, add(0x20, _location))
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}
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}
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function toBytes(bytes4 _sig) internal pure returns (bytes) {
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bytes memory payload = new bytes(4);
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payload[0] = bytes1(_sig);
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payload[1] = bytes1(_sig << 8);
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payload[2] = bytes1(_sig << 16);
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payload[3] = bytes1(_sig << 24);
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return payload;
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}
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function memcpy(uint _dest, uint _src, uint _len) public pure {
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uint256 src = _src;
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uint256 dest = _dest;
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uint256 len = _len;
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// Copy word-length chunks while possible
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for (; len >= 32; len -= 32) {
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assembly {
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mstore(dest, mload(src))
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}
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dest += 32;
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src += 32;
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}
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// Copy remaining bytes
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uint mask = 256 ** (32 - len) - 1;
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assembly {
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let srcpart := and(mload(src), not(mask))
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let destpart := and(mload(dest), mask)
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mstore(dest, or(destpart, srcpart))
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}
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}
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}
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///File: @aragon/os/contracts/evmscript/EVMScriptRunner.sol
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pragma solidity ^0.4.18;
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contract EVMScriptRunner is AppStorage, EVMScriptRegistryConstants {
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using ScriptHelpers for bytes;
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function runScript(bytes _script, bytes _input, address[] _blacklist) protectState internal returns (bytes output) {
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// TODO: Too much data flying around, maybe extracting spec id here is cheaper
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address executorAddr = getExecutor(_script);
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require(executorAddr != address(0));
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bytes memory calldataArgs = _script.encode(_input, _blacklist);
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bytes4 sig = IEVMScriptExecutor(0).execScript.selector;
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require(executorAddr.delegatecall(sig, calldataArgs));
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return returnedDataDecoded();
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}
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function getExecutor(bytes _script) public view returns (IEVMScriptExecutor) {
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return IEVMScriptExecutor(getExecutorRegistry().getScriptExecutor(_script));
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}
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// TODO: Internal
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function getExecutorRegistry() internal view returns (IEVMScriptRegistry) {
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address registryAddr = kernel.getApp(EVMSCRIPT_REGISTRY_APP);
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return IEVMScriptRegistry(registryAddr);
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}
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/**
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* @dev copies and returns last's call data. Needs to ABI decode first
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*/
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function returnedDataDecoded() internal view returns (bytes ret) {
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assembly {
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let size := returndatasize
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switch size
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case 0 {}
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default {
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ret := mload(0x40) // free mem ptr get
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mstore(0x40, add(ret, add(size, 0x20))) // free mem ptr set
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returndatacopy(ret, 0x20, sub(size, 0x20)) // copy return data
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}
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}
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return ret;
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}
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modifier protectState {
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address preKernel = kernel;
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bytes32 preAppId = appId;
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_; // exec
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require(kernel == preKernel);
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require(appId == preAppId);
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}
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}
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///File: @aragon/os/contracts/acl/ACLSyntaxSugar.sol
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pragma solidity 0.4.18;
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contract ACLSyntaxSugar {
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function arr() internal pure returns (uint256[] r) {}
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function arr(bytes32 _a) internal pure returns (uint256[] r) {
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return arr(uint256(_a));
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}
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function arr(bytes32 _a, bytes32 _b) internal pure returns (uint256[] r) {
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return arr(uint256(_a), uint256(_b));
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}
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function arr(address _a) internal pure returns (uint256[] r) {
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return arr(uint256(_a));
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}
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function arr(address _a, address _b) internal pure returns (uint256[] r) {
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return arr(uint256(_a), uint256(_b));
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}
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function arr(address _a, uint256 _b, uint256 _c) internal pure returns (uint256[] r) {
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return arr(uint256(_a), _b, _c);
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}
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function arr(address _a, uint256 _b) internal pure returns (uint256[] r) {
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return arr(uint256(_a), uint256(_b));
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}
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function arr(address _a, address _b, uint256 _c, uint256 _d, uint256 _e) internal pure returns (uint256[] r) {
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return arr(uint256(_a), uint256(_b), _c, _d, _e);
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}
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function arr(address _a, address _b, address _c) internal pure returns (uint256[] r) {
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return arr(uint256(_a), uint256(_b), uint256(_c));
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}
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function arr(address _a, address _b, uint256 _c) internal pure returns (uint256[] r) {
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return arr(uint256(_a), uint256(_b), uint256(_c));
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}
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function arr(uint256 _a) internal pure returns (uint256[] r) {
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r = new uint256[](1);
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r[0] = _a;
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}
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function arr(uint256 _a, uint256 _b) internal pure returns (uint256[] r) {
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r = new uint256[](2);
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r[0] = _a;
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r[1] = _b;
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}
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function arr(uint256 _a, uint256 _b, uint256 _c) internal pure returns (uint256[] r) {
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r = new uint256[](3);
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r[0] = _a;
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r[1] = _b;
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r[2] = _c;
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}
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function arr(uint256 _a, uint256 _b, uint256 _c, uint256 _d) internal pure returns (uint256[] r) {
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r = new uint256[](4);
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r[0] = _a;
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r[1] = _b;
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r[2] = _c;
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r[3] = _d;
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}
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function arr(uint256 _a, uint256 _b, uint256 _c, uint256 _d, uint256 _e) internal pure returns (uint256[] r) {
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r = new uint256[](5);
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r[0] = _a;
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r[1] = _b;
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r[2] = _c;
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r[3] = _d;
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r[4] = _e;
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}
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}
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contract ACLHelpers {
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function decodeParamOp(uint256 _x) internal pure returns (uint8 b) {
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return uint8(_x >> (8 * 30));
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}
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function decodeParamId(uint256 _x) internal pure returns (uint8 b) {
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return uint8(_x >> (8 * 31));
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}
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function decodeParamsList(uint256 _x) internal pure returns (uint32 a, uint32 b, uint32 c) {
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a = uint32(_x);
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b = uint32(_x >> (8 * 4));
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c = uint32(_x >> (8 * 8));
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}
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}
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///File: @aragon/os/contracts/apps/AragonApp.sol
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pragma solidity ^0.4.18;
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contract AragonApp is AppStorage, Initializable, ACLSyntaxSugar, EVMScriptRunner {
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modifier auth(bytes32 _role) {
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require(canPerform(msg.sender, _role, new uint256[](0)));
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_;
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}
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modifier authP(bytes32 _role, uint256[] params) {
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require(canPerform(msg.sender, _role, params));
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_;
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}
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function canPerform(address _sender, bytes32 _role, uint256[] params) public view returns (bool) {
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bytes memory how; // no need to init memory as it is never used
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if (params.length > 0) {
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uint256 byteLength = params.length * 32;
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assembly {
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how := params // forced casting
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mstore(how, byteLength)
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}
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}
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return address(kernel) == 0 || kernel.hasPermission(_sender, address(this), _role, how);
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}
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}
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///File: ./contracts/ILiquidPledgingPlugin.sol
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pragma solidity ^0.4.11;
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/*
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Copyright 2017, Jordi Baylina
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Contributors: Adrià Massanet <adria@codecontext.io>, RJ Ewing, Griff
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Green, Arthur Lunn
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/// @dev `ILiquidPledgingPlugin` is the basic interface for any
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/// liquid pledging plugin
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contract ILiquidPledgingPlugin {
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/// @notice Plugins are used (much like web hooks) to initiate an action
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/// upon any donation, delegation, or transfer; this is an optional feature
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/// and allows for extreme customization of the contract. This function
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/// implements any action that should be initiated before a transfer.
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/// @param pledgeManager The admin or current manager of the pledge
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/// @param pledgeFrom This is the Id from which value will be transfered.
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/// @param pledgeTo This is the Id that value will be transfered to.
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/// @param context The situation that is triggering the plugin:
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/// 0 -> Plugin for the owner transferring pledge to another party
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/// 1 -> Plugin for the first delegate transferring pledge to another party
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/// 2 -> Plugin for the second delegate transferring pledge to another party
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/// ...
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/// 255 -> Plugin for the intendedProject transferring pledge to another party
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///
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/// 256 -> Plugin for the owner receiving pledge to another party
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/// 257 -> Plugin for the first delegate receiving pledge to another party
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/// 258 -> Plugin for the second delegate receiving pledge to another party
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/// ...
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/// 511 -> Plugin for the intendedProject receiving pledge to another party
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/// @param amount The amount of value that will be transfered.
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function beforeTransfer(
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uint64 pledgeManager,
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uint64 pledgeFrom,
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uint64 pledgeTo,
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uint64 context,
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address token,
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uint amount ) public returns (uint maxAllowed);
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/// @notice Plugins are used (much like web hooks) to initiate an action
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/// upon any donation, delegation, or transfer; this is an optional feature
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/// and allows for extreme customization of the contract. This function
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/// implements any action that should be initiated after a transfer.
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/// @param pledgeManager The admin or current manager of the pledge
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/// @param pledgeFrom This is the Id from which value will be transfered.
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/// @param pledgeTo This is the Id that value will be transfered to.
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/// @param context The situation that is triggering the plugin:
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/// 0 -> Plugin for the owner transferring pledge to another party
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/// 1 -> Plugin for the first delegate transferring pledge to another party
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/// 2 -> Plugin for the second delegate transferring pledge to another party
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/// ...
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/// 255 -> Plugin for the intendedProject transferring pledge to another party
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///
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/// 256 -> Plugin for the owner receiving pledge to another party
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/// 257 -> Plugin for the first delegate receiving pledge to another party
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/// 258 -> Plugin for the second delegate receiving pledge to another party
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/// ...
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/// 511 -> Plugin for the intendedProject receiving pledge to another party
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/// @param amount The amount of value that will be transfered.
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function afterTransfer(
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uint64 pledgeManager,
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uint64 pledgeFrom,
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uint64 pledgeTo,
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uint64 context,
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address token,
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uint amount
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) public;
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}
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///File: ./contracts/LiquidPledgingStorage.sol
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pragma solidity ^0.4.18;
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/// @dev This is an interface for `LPVault` which serves as a secure storage for
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/// the ETH that backs the Pledges, only after `LiquidPledging` authorizes
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/// payments can Pledges be converted for ETH
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interface ILPVault {
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function authorizePayment(bytes32 _ref, address _dest, address _token, uint _amount) public;
|
|
}
|
|
|
|
/// This contract contains all state variables used in LiquidPledging contracts
|
|
/// This is done to have everything in 1 location, b/c state variable layout
|
|
/// is MUST have be the same when performing an upgrade.
|
|
contract LiquidPledgingStorage {
|
|
enum PledgeAdminType { Giver, Delegate, Project }
|
|
enum PledgeState { Pledged, Paying, Paid }
|
|
|
|
/// @dev This struct defines the details of a `PledgeAdmin` which are
|
|
/// commonly referenced by their index in the `admins` array
|
|
/// and can own pledges and act as delegates
|
|
struct PledgeAdmin {
|
|
PledgeAdminType adminType; // Giver, Delegate or Project
|
|
address addr; // Account or contract address for admin
|
|
uint64 commitTime; // In seconds, used for time Givers' & Delegates' have to veto
|
|
uint64 parentProject; // Only for projects
|
|
bool canceled; //Always false except for canceled projects
|
|
|
|
/// @dev if the plugin is 0x0 then nothing happens, if its an address
|
|
// than that smart contract is called when appropriate
|
|
ILiquidPledgingPlugin plugin;
|
|
string name;
|
|
string url; // Can be IPFS hash
|
|
}
|
|
|
|
struct Pledge {
|
|
uint amount;
|
|
uint64[] delegationChain; // List of delegates in order of authority
|
|
uint64 owner; // PledgeAdmin
|
|
uint64 intendedProject; // Used when delegates are sending to projects
|
|
uint64 commitTime; // When the intendedProject will become the owner
|
|
uint64 oldPledge; // Points to the id that this Pledge was derived from
|
|
address token;
|
|
PledgeState pledgeState; // Pledged, Paying, Paid
|
|
}
|
|
|
|
PledgeAdmin[] admins; //The list of pledgeAdmins 0 means there is no admin
|
|
Pledge[] pledges;
|
|
/// @dev this mapping allows you to search for a specific pledge's
|
|
/// index number by the hash of that pledge
|
|
mapping (bytes32 => uint64) hPledge2idx;
|
|
|
|
// this whitelist is for non-proxied plugins
|
|
mapping (bytes32 => bool) pluginContractWhitelist;
|
|
// this whitelist is for proxied plugins
|
|
mapping (address => bool) pluginInstanceWhitelist;
|
|
bool public whitelistDisabled = false;
|
|
|
|
ILPVault public vault;
|
|
|
|
// reserve 50 slots for future upgrades. I'm not sure if this is necessary
|
|
// but b/c of multiple inheritance used in lp, better safe then sorry.
|
|
// especially since it is free
|
|
uint[50] private storageOffset;
|
|
}
|
|
|
|
///File: ./contracts/LiquidPledgingACLHelpers.sol
|
|
|
|
pragma solidity ^0.4.18;
|
|
|
|
contract LiquidPledgingACLHelpers {
|
|
function arr(uint64 a, uint64 b, address c, uint d, address e) internal pure returns(uint[] r) {
|
|
r = new uint[](4);
|
|
r[0] = uint(a);
|
|
r[1] = uint(b);
|
|
r[2] = uint(c);
|
|
r[3] = d;
|
|
r[4] = uint(e);
|
|
}
|
|
|
|
function arr(bool a) internal pure returns (uint[] r) {
|
|
r = new uint[](1);
|
|
uint _a;
|
|
assembly {
|
|
_a := a // forced casting
|
|
}
|
|
r[0] = _a;
|
|
}
|
|
}
|
|
|
|
///File: ./contracts/LiquidPledgingPlugins.sol
|
|
|
|
pragma solidity ^0.4.18;
|
|
|
|
/*
|
|
Copyright 2017, Jordi Baylina, RJ Ewing
|
|
Contributors: Adrià Massanet <adria@codecontext.io>, Griff Green,
|
|
Arthur Lunn
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
contract LiquidPledgingPlugins is AragonApp, LiquidPledgingStorage, LiquidPledgingACLHelpers {
|
|
|
|
bytes32 constant public PLUGIN_MANAGER_ROLE = keccak256("PLUGIN_MANAGER_ROLE");
|
|
|
|
function addValidPluginInstance(address addr) auth(PLUGIN_MANAGER_ROLE) public {
|
|
pluginInstanceWhitelist[addr] = true;
|
|
}
|
|
|
|
function addValidPluginContract(bytes32 contractHash) auth(PLUGIN_MANAGER_ROLE) public {
|
|
pluginContractWhitelist[contractHash] = true;
|
|
}
|
|
|
|
function addValidPluginContracts(bytes32[] contractHashes) external auth(PLUGIN_MANAGER_ROLE) {
|
|
for (uint8 i = 0; i < contractHashes.length; i++) {
|
|
addValidPluginContract(contractHashes[i]);
|
|
}
|
|
}
|
|
|
|
function removeValidPluginContract(bytes32 contractHash) external authP(PLUGIN_MANAGER_ROLE, arr(contractHash)) {
|
|
pluginContractWhitelist[contractHash] = false;
|
|
}
|
|
|
|
function removeValidPluginInstance(address addr) external auth(PLUGIN_MANAGER_ROLE) {
|
|
pluginInstanceWhitelist[addr] = false;
|
|
}
|
|
|
|
function useWhitelist(bool useWhitelist) external auth(PLUGIN_MANAGER_ROLE) {
|
|
whitelistDisabled = !useWhitelist;
|
|
}
|
|
|
|
function isValidPlugin(address addr) public view returns(bool) {
|
|
if (whitelistDisabled || addr == 0x0) {
|
|
return true;
|
|
}
|
|
|
|
// first check pluginInstances
|
|
if (pluginInstanceWhitelist[addr]) {
|
|
return true;
|
|
}
|
|
|
|
// if the addr isn't a valid instance, check the contract code
|
|
bytes32 contractHash = getCodeHash(addr);
|
|
|
|
return pluginContractWhitelist[contractHash];
|
|
}
|
|
|
|
function getCodeHash(address addr) public view returns(bytes32) {
|
|
bytes memory o_code;
|
|
assembly {
|
|
// retrieve the size of the code, this needs assembly
|
|
let size := extcodesize(addr)
|
|
// allocate output byte array - this could also be done without assembly
|
|
// by using o_code = new bytes(size)
|
|
o_code := mload(0x40)
|
|
mstore(o_code, size) // store length in memory
|
|
// actually retrieve the code, this needs assembly
|
|
extcodecopy(addr, add(o_code, 0x20), 0, size)
|
|
}
|
|
return keccak256(o_code);
|
|
}
|
|
} |