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Overview
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0 ETH
Eth Value
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Private Name Tags
ContractCreator
Latest 25 from a total of 126 transactions
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| Set Schemes | 8671045 | 1826 days ago | IN | 0 ETH | 0.00008287 | ||||
| Set Schemes | 8203043 | 1899 days ago | IN | 0 ETH | 0.00029287 | ||||
| Forge Org | 8202393 | 1899 days ago | IN | 0 ETH | 0.00262581 | ||||
| Forge Org | 8118548 | 1913 days ago | IN | 0 ETH | 0.00491547 | ||||
| Forge Org | 8069886 | 1920 days ago | IN | 0 ETH | 0.01313228 | ||||
| Forge Org | 8053941 | 1923 days ago | IN | 0 ETH | 0.01076505 | ||||
| Forge Org | 8044476 | 1924 days ago | IN | 0 ETH | 0.01313228 | ||||
| Set Schemes | 7953993 | 1938 days ago | IN | 0 ETH | 0.00024843 | ||||
| Forge Org | 7953873 | 1938 days ago | IN | 0 ETH | 0.00787764 | ||||
| Set Schemes | 7949750 | 1939 days ago | IN | 0 ETH | 0.00010809 | ||||
| Forge Org | 7949475 | 1939 days ago | IN | 0 ETH | 0.00945385 | ||||
| Forge Org | 7947143 | 1939 days ago | IN | 0 ETH | 0.00262588 | ||||
| Forge Org | 7946957 | 1939 days ago | IN | 0 ETH | 0.00262485 | ||||
| Set Schemes | 7946555 | 1939 days ago | IN | 0 ETH | 0.00008281 | ||||
| Forge Org | 7946404 | 1939 days ago | IN | 0 ETH | 0.0027142 | ||||
| Set Schemes | 7932914 | 1941 days ago | IN | 0 ETH | 0.00664135 | ||||
| Add Founders | 7932902 | 1941 days ago | IN | 0 ETH | 0.0055902 | ||||
| Forge Org | 7932901 | 1941 days ago | IN | 0 ETH | 0.3409728 | ||||
| Forge Org | 7932025 | 1942 days ago | IN | 0 ETH | 0.20458368 | ||||
| Add Founders | 7931567 | 1942 days ago | IN | 0 ETH | 0.00335412 | ||||
| Forge Org | 7931560 | 1942 days ago | IN | 0 ETH | 0.20458368 | ||||
| Add Founders | 7931558 | 1942 days ago | IN | 0 ETH | 0.00223608 | ||||
| Forge Org | 7931514 | 1942 days ago | IN | 0 ETH | 0.13638912 | ||||
| Set Schemes | 7908174 | 1945 days ago | IN | 0 ETH | 0.00016562 | ||||
| Forge Org | 7907525 | 1945 days ago | IN | 0 ETH | 0.00525086 |
Latest 25 internal transactions (View All)
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Contract Name:
DaoCreator
Compiler Version
v0.5.4+commit.9549d8ff
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/**
*Submitted for verification at Etherscan.io on 2019-04-03
*/
// File: openzeppelin-solidity/contracts/ownership/Ownable.sol
pragma solidity ^0.5.0;
/**
* @title Ownable
* @dev The Ownable contract has an owner address, and provides basic authorization control
* functions, this simplifies the implementation of "user permissions".
*/
contract Ownable {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
constructor () internal {
_owner = msg.sender;
emit OwnershipTransferred(address(0), _owner);
}
/**
* @return the address of the owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(isOwner());
_;
}
/**
* @return true if `msg.sender` is the owner of the contract.
*/
function isOwner() public view returns (bool) {
return msg.sender == _owner;
}
/**
* @dev Allows the current owner to relinquish control of the contract.
* @notice Renouncing to ownership will leave the contract without an owner.
* It will not be possible to call the functions with the `onlyOwner`
* modifier anymore.
*/
function renounceOwnership() public onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferOwnership(address newOwner) public onlyOwner {
_transferOwnership(newOwner);
}
/**
* @dev Transfers control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function _transferOwnership(address newOwner) internal {
require(newOwner != address(0));
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
// File: @daostack/infra/contracts/Reputation.sol
pragma solidity ^0.5.4;
/**
* @title Reputation system
* @dev A DAO has Reputation System which allows peers to rate other peers in order to build trust .
* A reputation is use to assign influence measure to a DAO'S peers.
* Reputation is similar to regular tokens but with one crucial difference: It is non-transferable.
* The Reputation contract maintain a map of address to reputation value.
* It provides an onlyOwner functions to mint and burn reputation _to (or _from) a specific address.
*/
contract Reputation is Ownable {
uint8 public decimals = 18; //Number of decimals of the smallest unit
// Event indicating minting of reputation to an address.
event Mint(address indexed _to, uint256 _amount);
// Event indicating burning of reputation for an address.
event Burn(address indexed _from, uint256 _amount);
/// @dev `Checkpoint` is the structure that attaches a block number to a
/// given value, the block number attached is the one that last changed the
/// value
struct Checkpoint {
// `fromBlock` is the block number that the value was generated from
uint128 fromBlock;
// `value` is the amount of reputation at a specific block number
uint128 value;
}
// `balances` is the map that tracks the balance of each address, in this
// contract when the balance changes the block number that the change
// occurred is also included in the map
mapping (address => Checkpoint[]) balances;
// Tracks the history of the `totalSupply` of the reputation
Checkpoint[] totalSupplyHistory;
/// @notice Constructor to create a Reputation
constructor(
) public
{
}
/// @dev This function makes it easy to get the total number of reputation
/// @return The total number of reputation
function totalSupply() public view returns (uint256) {
return totalSupplyAt(block.number);
}
////////////////
// Query balance and totalSupply in History
////////////////
/**
* @dev return the reputation amount of a given owner
* @param _owner an address of the owner which we want to get his reputation
*/
function balanceOf(address _owner) public view returns (uint256 balance) {
return balanceOfAt(_owner, block.number);
}
/// @dev Queries the balance of `_owner` at a specific `_blockNumber`
/// @param _owner The address from which the balance will be retrieved
/// @param _blockNumber The block number when the balance is queried
/// @return The balance at `_blockNumber`
function balanceOfAt(address _owner, uint256 _blockNumber)
public view returns (uint256)
{
if ((balances[_owner].length == 0) || (balances[_owner][0].fromBlock > _blockNumber)) {
return 0;
// This will return the expected balance during normal situations
} else {
return getValueAt(balances[_owner], _blockNumber);
}
}
/// @notice Total amount of reputation at a specific `_blockNumber`.
/// @param _blockNumber The block number when the totalSupply is queried
/// @return The total amount of reputation at `_blockNumber`
function totalSupplyAt(uint256 _blockNumber) public view returns(uint256) {
if ((totalSupplyHistory.length == 0) || (totalSupplyHistory[0].fromBlock > _blockNumber)) {
return 0;
// This will return the expected totalSupply during normal situations
} else {
return getValueAt(totalSupplyHistory, _blockNumber);
}
}
/// @notice Generates `_amount` reputation that are assigned to `_owner`
/// @param _user The address that will be assigned the new reputation
/// @param _amount The quantity of reputation generated
/// @return True if the reputation are generated correctly
function mint(address _user, uint256 _amount) public onlyOwner returns (bool) {
uint256 curTotalSupply = totalSupply();
require(curTotalSupply + _amount >= curTotalSupply); // Check for overflow
uint256 previousBalanceTo = balanceOf(_user);
require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow
updateValueAtNow(totalSupplyHistory, curTotalSupply + _amount);
updateValueAtNow(balances[_user], previousBalanceTo + _amount);
emit Mint(_user, _amount);
return true;
}
/// @notice Burns `_amount` reputation from `_owner`
/// @param _user The address that will lose the reputation
/// @param _amount The quantity of reputation to burn
/// @return True if the reputation are burned correctly
function burn(address _user, uint256 _amount) public onlyOwner returns (bool) {
uint256 curTotalSupply = totalSupply();
uint256 amountBurned = _amount;
uint256 previousBalanceFrom = balanceOf(_user);
if (previousBalanceFrom < amountBurned) {
amountBurned = previousBalanceFrom;
}
updateValueAtNow(totalSupplyHistory, curTotalSupply - amountBurned);
updateValueAtNow(balances[_user], previousBalanceFrom - amountBurned);
emit Burn(_user, amountBurned);
return true;
}
////////////////
// Internal helper functions to query and set a value in a snapshot array
////////////////
/// @dev `getValueAt` retrieves the number of reputation at a given block number
/// @param checkpoints The history of values being queried
/// @param _block The block number to retrieve the value at
/// @return The number of reputation being queried
function getValueAt(Checkpoint[] storage checkpoints, uint256 _block) internal view returns (uint256) {
if (checkpoints.length == 0) {
return 0;
}
// Shortcut for the actual value
if (_block >= checkpoints[checkpoints.length-1].fromBlock) {
return checkpoints[checkpoints.length-1].value;
}
if (_block < checkpoints[0].fromBlock) {
return 0;
}
// Binary search of the value in the array
uint256 min = 0;
uint256 max = checkpoints.length-1;
while (max > min) {
uint256 mid = (max + min + 1) / 2;
if (checkpoints[mid].fromBlock<=_block) {
min = mid;
} else {
max = mid-1;
}
}
return checkpoints[min].value;
}
/// @dev `updateValueAtNow` used to update the `balances` map and the
/// `totalSupplyHistory`
/// @param checkpoints The history of data being updated
/// @param _value The new number of reputation
function updateValueAtNow(Checkpoint[] storage checkpoints, uint256 _value) internal {
require(uint128(_value) == _value); //check value is in the 128 bits bounderies
if ((checkpoints.length == 0) || (checkpoints[checkpoints.length - 1].fromBlock < block.number)) {
Checkpoint storage newCheckPoint = checkpoints[checkpoints.length++];
newCheckPoint.fromBlock = uint128(block.number);
newCheckPoint.value = uint128(_value);
} else {
Checkpoint storage oldCheckPoint = checkpoints[checkpoints.length-1];
oldCheckPoint.value = uint128(_value);
}
}
}
// File: openzeppelin-solidity/contracts/token/ERC20/IERC20.sol
pragma solidity ^0.5.0;
/**
* @title ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
interface IERC20 {
function transfer(address to, uint256 value) external returns (bool);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value) external returns (bool);
function totalSupply() external view returns (uint256);
function balanceOf(address who) external view returns (uint256);
function allowance(address owner, address spender) external view returns (uint256);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// File: openzeppelin-solidity/contracts/math/SafeMath.sol
pragma solidity ^0.5.0;
/**
* @title SafeMath
* @dev Unsigned math operations with safety checks that revert on error
*/
library SafeMath {
/**
* @dev Multiplies two unsigned integers, reverts on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
/**
* @dev Integer division of two unsigned integers truncating the quotient, reverts on division by zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
/**
* @dev Adds two unsigned integers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
/**
* @dev Divides two unsigned integers and returns the remainder (unsigned integer modulo),
* reverts when dividing by zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b != 0);
return a % b;
}
}
// File: openzeppelin-solidity/contracts/token/ERC20/ERC20.sol
pragma solidity ^0.5.0;
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
* Originally based on code by FirstBlood:
* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*
* This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
* all accounts just by listening to said events. Note that this isn't required by the specification, and other
* compliant implementations may not do it.
*/
contract ERC20 is IERC20 {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowed;
uint256 private _totalSupply;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) public view returns (uint256) {
return _balances[owner];
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param owner address The address which owns the funds.
* @param spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(address owner, address spender) public view returns (uint256) {
return _allowed[owner][spender];
}
/**
* @dev Transfer token for a specified address
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function transfer(address to, uint256 value) public returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param spender The address which will spend the funds.
* @param value The amount of tokens to be spent.
*/
function approve(address spender, uint256 value) public returns (bool) {
require(spender != address(0));
_allowed[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
/**
* @dev Transfer tokens from one address to another.
* Note that while this function emits an Approval event, this is not required as per the specification,
* and other compliant implementations may not emit the event.
* @param from address The address which you want to send tokens from
* @param to address The address which you want to transfer to
* @param value uint256 the amount of tokens to be transferred
*/
function transferFrom(address from, address to, uint256 value) public returns (bool) {
_allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
_transfer(from, to, value);
emit Approval(from, msg.sender, _allowed[from][msg.sender]);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param addedValue The amount of tokens to increase the allowance by.
*/
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].add(addedValue);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed_[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* Emits an Approval event.
* @param spender The address which will spend the funds.
* @param subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
require(spender != address(0));
_allowed[msg.sender][spender] = _allowed[msg.sender][spender].sub(subtractedValue);
emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
return true;
}
/**
* @dev Transfer token for a specified addresses
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param value The amount to be transferred.
*/
function _transfer(address from, address to, uint256 value) internal {
require(to != address(0));
_balances[from] = _balances[from].sub(value);
_balances[to] = _balances[to].add(value);
emit Transfer(from, to, value);
}
/**
* @dev Internal function that mints an amount of the token and assigns it to
* an account. This encapsulates the modification of balances such that the
* proper events are emitted.
* @param account The account that will receive the created tokens.
* @param value The amount that will be created.
*/
function _mint(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.add(value);
_balances[account] = _balances[account].add(value);
emit Transfer(address(0), account, value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account.
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burn(address account, uint256 value) internal {
require(account != address(0));
_totalSupply = _totalSupply.sub(value);
_balances[account] = _balances[account].sub(value);
emit Transfer(account, address(0), value);
}
/**
* @dev Internal function that burns an amount of the token of a given
* account, deducting from the sender's allowance for said account. Uses the
* internal burn function.
* Emits an Approval event (reflecting the reduced allowance).
* @param account The account whose tokens will be burnt.
* @param value The amount that will be burnt.
*/
function _burnFrom(address account, uint256 value) internal {
_allowed[account][msg.sender] = _allowed[account][msg.sender].sub(value);
_burn(account, value);
emit Approval(account, msg.sender, _allowed[account][msg.sender]);
}
}
// File: openzeppelin-solidity/contracts/token/ERC20/ERC20Burnable.sol
pragma solidity ^0.5.0;
/**
* @title Burnable Token
* @dev Token that can be irreversibly burned (destroyed).
*/
contract ERC20Burnable is ERC20 {
/**
* @dev Burns a specific amount of tokens.
* @param value The amount of token to be burned.
*/
function burn(uint256 value) public {
_burn(msg.sender, value);
}
/**
* @dev Burns a specific amount of tokens from the target address and decrements allowance
* @param from address The address which you want to send tokens from
* @param value uint256 The amount of token to be burned
*/
function burnFrom(address from, uint256 value) public {
_burnFrom(from, value);
}
}
// File: contracts/controller/DAOToken.sol
pragma solidity ^0.5.4;
/**
* @title DAOToken, base on zeppelin contract.
* @dev ERC20 compatible token. It is a mintable, burnable token.
*/
contract DAOToken is ERC20, ERC20Burnable, Ownable {
string public name;
string public symbol;
// solhint-disable-next-line const-name-snakecase
uint8 public constant decimals = 18;
uint256 public cap;
/**
* @dev Constructor
* @param _name - token name
* @param _symbol - token symbol
* @param _cap - token cap - 0 value means no cap
*/
constructor(string memory _name, string memory _symbol, uint256 _cap)
public {
name = _name;
symbol = _symbol;
cap = _cap;
}
/**
* @dev Function to mint tokens
* @param _to The address that will receive the minted tokens.
* @param _amount The amount of tokens to mint.
*/
function mint(address _to, uint256 _amount) public onlyOwner returns (bool) {
if (cap > 0)
require(totalSupply().add(_amount) <= cap);
_mint(_to, _amount);
return true;
}
}
// File: openzeppelin-solidity/contracts/utils/Address.sol
pragma solidity ^0.5.0;
/**
* Utility library of inline functions on addresses
*/
library Address {
/**
* Returns whether the target address is a contract
* @dev This function will return false if invoked during the constructor of a contract,
* as the code is not actually created until after the constructor finishes.
* @param account address of the account to check
* @return whether the target address is a contract
*/
function isContract(address account) internal view returns (bool) {
uint256 size;
// XXX Currently there is no better way to check if there is a contract in an address
// than to check the size of the code at that address.
// See https://ethereum.stackexchange.com/a/14016/36603
// for more details about how this works.
// TODO Check this again before the Serenity release, because all addresses will be
// contracts then.
// solhint-disable-next-line no-inline-assembly
assembly { size := extcodesize(account) }
return size > 0;
}
}
// File: contracts/libs/SafeERC20.sol
/*
SafeERC20 by daostack.
The code is based on a fix by SECBIT Team.
USE WITH CAUTION & NO WARRANTY
REFERENCE & RELATED READING
- https://github.com/ethereum/solidity/issues/4116
- https://medium.com/@chris_77367/explaining-unexpected-reverts-starting-with-solidity-0-4-22-3ada6e82308c
- https://medium.com/coinmonks/missing-return-value-bug-at-least-130-tokens-affected-d67bf08521ca
- https://gist.github.com/BrendanChou/88a2eeb80947ff00bcf58ffdafeaeb61
*/
pragma solidity ^0.5.4;
library SafeERC20 {
using Address for address;
bytes4 constant private TRANSFER_SELECTOR = bytes4(keccak256(bytes("transfer(address,uint256)")));
bytes4 constant private TRANSFERFROM_SELECTOR = bytes4(keccak256(bytes("transferFrom(address,address,uint256)")));
bytes4 constant private APPROVE_SELECTOR = bytes4(keccak256(bytes("approve(address,uint256)")));
function safeTransfer(address _erc20Addr, address _to, uint256 _value) internal {
// Must be a contract addr first!
require(_erc20Addr.isContract());
(bool success, bytes memory returnValue) =
// solhint-disable-next-line avoid-low-level-calls
_erc20Addr.call(abi.encodeWithSelector(TRANSFER_SELECTOR, _to, _value));
// call return false when something wrong
require(success);
//check return value
require(returnValue.length == 0 || (returnValue.length == 32 && (returnValue[31] != 0)));
}
function safeTransferFrom(address _erc20Addr, address _from, address _to, uint256 _value) internal {
// Must be a contract addr first!
require(_erc20Addr.isContract());
(bool success, bytes memory returnValue) =
// solhint-disable-next-line avoid-low-level-calls
_erc20Addr.call(abi.encodeWithSelector(TRANSFERFROM_SELECTOR, _from, _to, _value));
// call return false when something wrong
require(success);
//check return value
require(returnValue.length == 0 || (returnValue.length == 32 && (returnValue[31] != 0)));
}
function safeApprove(address _erc20Addr, address _spender, uint256 _value) internal {
// Must be a contract addr first!
require(_erc20Addr.isContract());
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero.
require((_value == 0) || (IERC20(_erc20Addr).allowance(address(this), _spender) == 0));
(bool success, bytes memory returnValue) =
// solhint-disable-next-line avoid-low-level-calls
_erc20Addr.call(abi.encodeWithSelector(APPROVE_SELECTOR, _spender, _value));
// call return false when something wrong
require(success);
//check return value
require(returnValue.length == 0 || (returnValue.length == 32 && (returnValue[31] != 0)));
}
}
// File: contracts/controller/Avatar.sol
pragma solidity ^0.5.4;
/**
* @title An Avatar holds tokens, reputation and ether for a controller
*/
contract Avatar is Ownable {
using SafeERC20 for address;
string public orgName;
DAOToken public nativeToken;
Reputation public nativeReputation;
event GenericCall(address indexed _contract, bytes _data, uint _value, bool _success);
event SendEther(uint256 _amountInWei, address indexed _to);
event ExternalTokenTransfer(address indexed _externalToken, address indexed _to, uint256 _value);
event ExternalTokenTransferFrom(address indexed _externalToken, address _from, address _to, uint256 _value);
event ExternalTokenApproval(address indexed _externalToken, address _spender, uint256 _value);
event ReceiveEther(address indexed _sender, uint256 _value);
event MetaData(string _metaData);
/**
* @dev the constructor takes organization name, native token and reputation system
and creates an avatar for a controller
*/
constructor(string memory _orgName, DAOToken _nativeToken, Reputation _nativeReputation) public {
orgName = _orgName;
nativeToken = _nativeToken;
nativeReputation = _nativeReputation;
}
/**
* @dev enables an avatar to receive ethers
*/
function() external payable {
emit ReceiveEther(msg.sender, msg.value);
}
/**
* @dev perform a generic call to an arbitrary contract
* @param _contract the contract's address to call
* @param _data ABI-encoded contract call to call `_contract` address.
* @param _value value (ETH) to transfer with the transaction
* @return bool success or fail
* bytes - the return bytes of the called contract's function.
*/
function genericCall(address _contract, bytes memory _data, uint256 _value)
public
onlyOwner
returns(bool success, bytes memory returnValue) {
// solhint-disable-next-line avoid-call-value
(success, returnValue) = _contract.call.value(_value)(_data);
emit GenericCall(_contract, _data, _value, success);
}
/**
* @dev send ethers from the avatar's wallet
* @param _amountInWei amount to send in Wei units
* @param _to send the ethers to this address
* @return bool which represents success
*/
function sendEther(uint256 _amountInWei, address payable _to) public onlyOwner returns(bool) {
_to.transfer(_amountInWei);
emit SendEther(_amountInWei, _to);
return true;
}
/**
* @dev external token transfer
* @param _externalToken the token contract
* @param _to the destination address
* @param _value the amount of tokens to transfer
* @return bool which represents success
*/
function externalTokenTransfer(IERC20 _externalToken, address _to, uint256 _value)
public onlyOwner returns(bool)
{
address(_externalToken).safeTransfer(_to, _value);
emit ExternalTokenTransfer(address(_externalToken), _to, _value);
return true;
}
/**
* @dev external token transfer from a specific account
* @param _externalToken the token contract
* @param _from the account to spend token from
* @param _to the destination address
* @param _value the amount of tokens to transfer
* @return bool which represents success
*/
function externalTokenTransferFrom(
IERC20 _externalToken,
address _from,
address _to,
uint256 _value
)
public onlyOwner returns(bool)
{
address(_externalToken).safeTransferFrom(_from, _to, _value);
emit ExternalTokenTransferFrom(address(_externalToken), _from, _to, _value);
return true;
}
/**
* @dev externalTokenApproval approve the spender address to spend a specified amount of tokens
* on behalf of msg.sender.
* @param _externalToken the address of the Token Contract
* @param _spender address
* @param _value the amount of ether (in Wei) which the approval is referring to.
* @return bool which represents a success
*/
function externalTokenApproval(IERC20 _externalToken, address _spender, uint256 _value)
public onlyOwner returns(bool)
{
address(_externalToken).safeApprove(_spender, _value);
emit ExternalTokenApproval(address(_externalToken), _spender, _value);
return true;
}
/**
* @dev metaData emits an event with a string, should contain the hash of some meta data.
* @param _metaData a string representing a hash of the meta data
* @return bool which represents a success
*/
function metaData(string memory _metaData) public onlyOwner returns(bool) {
emit MetaData(_metaData);
return true;
}
}
// File: contracts/universalSchemes/UniversalSchemeInterface.sol
pragma solidity ^0.5.4;
contract UniversalSchemeInterface {
function getParametersFromController(Avatar _avatar) internal view returns(bytes32);
}
// File: contracts/globalConstraints/GlobalConstraintInterface.sol
pragma solidity ^0.5.4;
contract GlobalConstraintInterface {
enum CallPhase { Pre, Post, PreAndPost }
function pre( address _scheme, bytes32 _params, bytes32 _method ) public returns(bool);
function post( address _scheme, bytes32 _params, bytes32 _method ) public returns(bool);
/**
* @dev when return if this globalConstraints is pre, post or both.
* @return CallPhase enum indication Pre, Post or PreAndPost.
*/
function when() public returns(CallPhase);
}
// File: contracts/controller/ControllerInterface.sol
pragma solidity ^0.5.4;
/**
* @title Controller contract
* @dev A controller controls the organizations tokens ,reputation and avatar.
* It is subject to a set of schemes and constraints that determine its behavior.
* Each scheme has it own parameters and operation permissions.
*/
interface ControllerInterface {
/**
* @dev Mint `_amount` of reputation that are assigned to `_to` .
* @param _amount amount of reputation to mint
* @param _to beneficiary address
* @return bool which represents a success
*/
function mintReputation(uint256 _amount, address _to, address _avatar)
external
returns(bool);
/**
* @dev Burns `_amount` of reputation from `_from`
* @param _amount amount of reputation to burn
* @param _from The address that will lose the reputation
* @return bool which represents a success
*/
function burnReputation(uint256 _amount, address _from, address _avatar)
external
returns(bool);
/**
* @dev mint tokens .
* @param _amount amount of token to mint
* @param _beneficiary beneficiary address
* @param _avatar address
* @return bool which represents a success
*/
function mintTokens(uint256 _amount, address _beneficiary, address _avatar)
external
returns(bool);
/**
* @dev register or update a scheme
* @param _scheme the address of the scheme
* @param _paramsHash a hashed configuration of the usage of the scheme
* @param _permissions the permissions the new scheme will have
* @param _avatar address
* @return bool which represents a success
*/
function registerScheme(address _scheme, bytes32 _paramsHash, bytes4 _permissions, address _avatar)
external
returns(bool);
/**
* @dev unregister a scheme
* @param _avatar address
* @param _scheme the address of the scheme
* @return bool which represents a success
*/
function unregisterScheme(address _scheme, address _avatar)
external
returns(bool);
/**
* @dev unregister the caller's scheme
* @param _avatar address
* @return bool which represents a success
*/
function unregisterSelf(address _avatar) external returns(bool);
/**
* @dev add or update Global Constraint
* @param _globalConstraint the address of the global constraint to be added.
* @param _params the constraint parameters hash.
* @param _avatar the avatar of the organization
* @return bool which represents a success
*/
function addGlobalConstraint(address _globalConstraint, bytes32 _params, address _avatar)
external returns(bool);
/**
* @dev remove Global Constraint
* @param _globalConstraint the address of the global constraint to be remove.
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function removeGlobalConstraint (address _globalConstraint, address _avatar)
external returns(bool);
/**
* @dev upgrade the Controller
* The function will trigger an event 'UpgradeController'.
* @param _newController the address of the new controller.
* @param _avatar address
* @return bool which represents a success
*/
function upgradeController(address _newController, Avatar _avatar)
external returns(bool);
/**
* @dev perform a generic call to an arbitrary contract
* @param _contract the contract's address to call
* @param _data ABI-encoded contract call to call `_contract` address.
* @param _avatar the controller's avatar address
* @param _value value (ETH) to transfer with the transaction
* @return bool -success
* bytes - the return value of the called _contract's function.
*/
function genericCall(address _contract, bytes calldata _data, Avatar _avatar, uint256 _value)
external
returns(bool, bytes memory);
/**
* @dev send some ether
* @param _amountInWei the amount of ether (in Wei) to send
* @param _to address of the beneficiary
* @param _avatar address
* @return bool which represents a success
*/
function sendEther(uint256 _amountInWei, address payable _to, Avatar _avatar)
external returns(bool);
/**
* @dev send some amount of arbitrary ERC20 Tokens
* @param _externalToken the address of the Token Contract
* @param _to address of the beneficiary
* @param _value the amount of ether (in Wei) to send
* @param _avatar address
* @return bool which represents a success
*/
function externalTokenTransfer(IERC20 _externalToken, address _to, uint256 _value, Avatar _avatar)
external
returns(bool);
/**
* @dev transfer token "from" address "to" address
* One must to approve the amount of tokens which can be spend from the
* "from" account.This can be done using externalTokenApprove.
* @param _externalToken the address of the Token Contract
* @param _from address of the account to send from
* @param _to address of the beneficiary
* @param _value the amount of ether (in Wei) to send
* @param _avatar address
* @return bool which represents a success
*/
function externalTokenTransferFrom(
IERC20 _externalToken,
address _from,
address _to,
uint256 _value,
Avatar _avatar)
external
returns(bool);
/**
* @dev externalTokenApproval approve the spender address to spend a specified amount of tokens
* on behalf of msg.sender.
* @param _externalToken the address of the Token Contract
* @param _spender address
* @param _value the amount of ether (in Wei) which the approval is referring to.
* @return bool which represents a success
*/
function externalTokenApproval(IERC20 _externalToken, address _spender, uint256 _value, Avatar _avatar)
external
returns(bool);
/**
* @dev metaData emits an event with a string, should contain the hash of some meta data.
* @param _metaData a string representing a hash of the meta data
* @param _avatar Avatar
* @return bool which represents a success
*/
function metaData(string calldata _metaData, Avatar _avatar) external returns(bool);
/**
* @dev getNativeReputation
* @param _avatar the organization avatar.
* @return organization native reputation
*/
function getNativeReputation(address _avatar)
external
view
returns(address);
function isSchemeRegistered( address _scheme, address _avatar) external view returns(bool);
function getSchemeParameters(address _scheme, address _avatar) external view returns(bytes32);
function getGlobalConstraintParameters(address _globalConstraint, address _avatar) external view returns(bytes32);
function getSchemePermissions(address _scheme, address _avatar) external view returns(bytes4);
/**
* @dev globalConstraintsCount return the global constraint pre and post count
* @return uint256 globalConstraintsPre count.
* @return uint256 globalConstraintsPost count.
*/
function globalConstraintsCount(address _avatar) external view returns(uint, uint);
function isGlobalConstraintRegistered(address _globalConstraint, address _avatar) external view returns(bool);
}
// File: contracts/universalSchemes/UniversalScheme.sol
pragma solidity ^0.5.4;
contract UniversalScheme is UniversalSchemeInterface {
/**
* @dev get the parameters for the current scheme from the controller
*/
function getParametersFromController(Avatar _avatar) internal view returns(bytes32) {
require(ControllerInterface(_avatar.owner()).isSchemeRegistered(address(this), address(_avatar)),
"scheme is not registered");
return ControllerInterface(_avatar.owner()).getSchemeParameters(address(this), address(_avatar));
}
}
// File: contracts/controller/UController.sol
pragma solidity ^0.5.4;
/**
* @title Universal Controller contract
* @dev A universal controller hold organizations and controls their tokens ,reputations
* and avatar.
* It is subject to a set of schemes and constraints that determine its behavior.
* Each scheme has it own parameters and operation permissions.
*/
contract UController is ControllerInterface {
struct Scheme {
bytes32 paramsHash; // a hash "configuration" of the scheme
bytes4 permissions; // A bitwise flags of permissions,
// All 0: Not registered,
// 1st bit: Flag if the scheme is registered,
// 2nd bit: Scheme can register other schemes
// 3th bit: Scheme can add/remove global constraints
// 4rd bit: Scheme can upgrade the controller
// 5th bit: Scheme can call delegatecall
}
struct GlobalConstraint {
address gcAddress;
bytes32 params;
}
struct GlobalConstraintRegister {
bool isRegistered; //is registered
uint256 index; //index at globalConstraints
}
struct Organization {
DAOToken nativeToken;
Reputation nativeReputation;
mapping(address=>Scheme) schemes;
// globalConstraintsPre that determine pre- conditions for all actions on the controller
GlobalConstraint[] globalConstraintsPre;
// globalConstraintsPost that determine post-conditions for all actions on the controller
GlobalConstraint[] globalConstraintsPost;
// globalConstraintsRegisterPre indicate if a globalConstraints is registered as a Pre global constraint.
mapping(address=>GlobalConstraintRegister) globalConstraintsRegisterPre;
// globalConstraintsRegisterPost indicate if a globalConstraints is registered as a Post global constraint.
mapping(address=>GlobalConstraintRegister) globalConstraintsRegisterPost;
}
//mapping between organization's avatar address to Organization
mapping(address=>Organization) public organizations;
// newController will point to the new controller after the present controller is upgraded
// address external newController;
mapping(address=>address) public newControllers;//mapping between avatar address and newController address
//mapping for all reputation system and tokens addresses registered.
mapping(address=>bool) public actors;
event MintReputation (address indexed _sender, address indexed _to, uint256 _amount, address indexed _avatar);
event BurnReputation (address indexed _sender, address indexed _from, uint256 _amount, address indexed _avatar);
event MintTokens (address indexed _sender, address indexed _beneficiary, uint256 _amount, address indexed _avatar);
event RegisterScheme (address indexed _sender, address indexed _scheme, address indexed _avatar);
event UnregisterScheme (address indexed _sender, address indexed _scheme, address indexed _avatar);
event UpgradeController(address indexed _oldController, address _newController, address _avatar);
event AddGlobalConstraint(
address indexed _globalConstraint,
bytes32 _params,
GlobalConstraintInterface.CallPhase _when,
address indexed _avatar
);
event RemoveGlobalConstraint(
address indexed _globalConstraint,
uint256 _index,
bool _isPre,
address indexed _avatar
);
/**
* @dev newOrganization set up a new organization with default daoCreator.
* @param _avatar the organization avatar
*/
function newOrganization(
Avatar _avatar
) external
{
require(!actors[address(_avatar)]);
actors[address(_avatar)] = true;
require(_avatar.owner() == address(this));
DAOToken nativeToken = _avatar.nativeToken();
Reputation nativeReputation = _avatar.nativeReputation();
require(nativeToken.owner() == address(this));
require(nativeReputation.owner() == address(this));
//To guaranty uniqueness for the reputation systems.
require(!actors[address(nativeReputation)]);
actors[address(nativeReputation)] = true;
//To guaranty uniqueness for the nativeToken.
require(!actors[address(nativeToken)]);
actors[address(nativeToken)] = true;
organizations[address(_avatar)].nativeToken = nativeToken;
organizations[address(_avatar)].nativeReputation = nativeReputation;
organizations[address(_avatar)].schemes[msg.sender] =
Scheme({paramsHash: bytes32(0), permissions: bytes4(0x0000001f)});
emit RegisterScheme(msg.sender, msg.sender, address(_avatar));
}
// Modifiers:
modifier onlyRegisteredScheme(address avatar) {
require(organizations[avatar].schemes[msg.sender].permissions&bytes4(0x00000001) == bytes4(0x00000001));
_;
}
modifier onlyRegisteringSchemes(address avatar) {
require(organizations[avatar].schemes[msg.sender].permissions&bytes4(0x00000002) == bytes4(0x00000002));
_;
}
modifier onlyGlobalConstraintsScheme(address avatar) {
require(organizations[avatar].schemes[msg.sender].permissions&bytes4(0x00000004) == bytes4(0x00000004));
_;
}
modifier onlyUpgradingScheme(address _avatar) {
require(organizations[_avatar].schemes[msg.sender].permissions&bytes4(0x00000008) == bytes4(0x00000008));
_;
}
modifier onlyGenericCallScheme(address _avatar) {
require(organizations[_avatar].schemes[msg.sender].permissions&bytes4(0x00000010) == bytes4(0x00000010));
_;
}
modifier onlyMetaDataScheme(address _avatar) {
require(organizations[_avatar].schemes[msg.sender].permissions&bytes4(0x00000010) == bytes4(0x00000010));
_;
}
modifier onlySubjectToConstraint(bytes32 func, address _avatar) {
uint256 idx;
GlobalConstraint[] memory globalConstraintsPre = organizations[_avatar].globalConstraintsPre;
GlobalConstraint[] memory globalConstraintsPost = organizations[_avatar].globalConstraintsPost;
for (idx = 0; idx < globalConstraintsPre.length; idx++) {
require(
(GlobalConstraintInterface(globalConstraintsPre[idx].gcAddress))
.pre(msg.sender, globalConstraintsPre[idx].params, func));
}
_;
for (idx = 0; idx < globalConstraintsPost.length; idx++) {
require(
(GlobalConstraintInterface(globalConstraintsPost[idx].gcAddress))
.post(msg.sender, globalConstraintsPost[idx].params, func));
}
}
/**
* @dev Mint `_amount` of reputation that are assigned to `_to` .
* @param _amount amount of reputation to mint
* @param _to beneficiary address
* @param _avatar the address of the organization's avatar
* @return bool which represents a success
*/
function mintReputation(uint256 _amount, address _to, address _avatar)
external
onlyRegisteredScheme(_avatar)
onlySubjectToConstraint("mintReputation", _avatar)
returns(bool)
{
emit MintReputation(msg.sender, _to, _amount, _avatar);
return organizations[_avatar].nativeReputation.mint(_to, _amount);
}
/**
* @dev Burns `_amount` of reputation from `_from`
* @param _amount amount of reputation to burn
* @param _from The address that will lose the reputation
* @return bool which represents a success
*/
function burnReputation(uint256 _amount, address _from, address _avatar)
external
onlyRegisteredScheme(_avatar)
onlySubjectToConstraint("burnReputation", _avatar)
returns(bool)
{
emit BurnReputation(msg.sender, _from, _amount, _avatar);
return organizations[_avatar].nativeReputation.burn(_from, _amount);
}
/**
* @dev mint tokens .
* @param _amount amount of token to mint
* @param _beneficiary beneficiary address
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function mintTokens(uint256 _amount, address _beneficiary, address _avatar)
external
onlyRegisteredScheme(_avatar)
onlySubjectToConstraint("mintTokens", _avatar)
returns(bool)
{
emit MintTokens(msg.sender, _beneficiary, _amount, _avatar);
return organizations[_avatar].nativeToken.mint(_beneficiary, _amount);
}
/**
* @dev register or update a scheme
* @param _scheme the address of the scheme
* @param _paramsHash a hashed configuration of the usage of the scheme
* @param _permissions the permissions the new scheme will have
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function registerScheme(address _scheme, bytes32 _paramsHash, bytes4 _permissions, address _avatar)
external
onlyRegisteringSchemes(_avatar)
onlySubjectToConstraint("registerScheme", _avatar)
returns(bool)
{
bytes4 schemePermission = organizations[_avatar].schemes[_scheme].permissions;
bytes4 senderPermission = organizations[_avatar].schemes[msg.sender].permissions;
// Check scheme has at least the permissions it is changing, and at least the current permissions:
// Implementation is a bit messy. One must recall logic-circuits ^^
// produces non-zero if sender does not have all of the perms that are changing between old and new
require(bytes4(0x0000001f)&(_permissions^schemePermission)&(~senderPermission) == bytes4(0));
// produces non-zero if sender does not have all of the perms in the old scheme
require(bytes4(0x0000001f)&(schemePermission&(~senderPermission)) == bytes4(0));
// Add or change the scheme:
organizations[_avatar].schemes[_scheme] =
Scheme({paramsHash:_paramsHash, permissions:_permissions|bytes4(0x00000001)});
emit RegisterScheme(msg.sender, _scheme, _avatar);
return true;
}
/**
* @dev unregister a scheme
* @param _scheme the address of the scheme
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function unregisterScheme(address _scheme, address _avatar)
external
onlyRegisteringSchemes(_avatar)
onlySubjectToConstraint("unregisterScheme", _avatar)
returns(bool)
{
bytes4 schemePermission = organizations[_avatar].schemes[_scheme].permissions;
//check if the scheme is registered
if (schemePermission&bytes4(0x00000001) == bytes4(0)) {
return false;
}
// Check the unregistering scheme has enough permissions:
require(
bytes4(0x0000001f)&(schemePermission&(~organizations[_avatar].schemes[msg.sender].permissions)) == bytes4(0));
// Unregister:
emit UnregisterScheme(msg.sender, _scheme, _avatar);
delete organizations[_avatar].schemes[_scheme];
return true;
}
/**
* @dev unregister the caller's scheme
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function unregisterSelf(address _avatar) external returns(bool) {
if (_isSchemeRegistered(msg.sender, _avatar) == false) {
return false;
}
delete organizations[_avatar].schemes[msg.sender];
emit UnregisterScheme(msg.sender, msg.sender, _avatar);
return true;
}
/**
* @dev add or update Global Constraint
* @param _globalConstraint the address of the global constraint to be added.
* @param _params the constraint parameters hash.
* @param _avatar the avatar of the organization
* @return bool which represents a success
*/
function addGlobalConstraint(address _globalConstraint, bytes32 _params, address _avatar)
external onlyGlobalConstraintsScheme(_avatar) returns(bool)
{
Organization storage organization = organizations[_avatar];
GlobalConstraintInterface.CallPhase when = GlobalConstraintInterface(_globalConstraint).when();
if ((when == GlobalConstraintInterface.CallPhase.Pre)||
(when == GlobalConstraintInterface.CallPhase.PreAndPost)) {
if (!organization.globalConstraintsRegisterPre[_globalConstraint].isRegistered) {
organization.globalConstraintsPre.push(GlobalConstraint(_globalConstraint, _params));
organization.globalConstraintsRegisterPre[_globalConstraint] =
GlobalConstraintRegister(true, organization.globalConstraintsPre.length-1);
}else {
organization
.globalConstraintsPre[organization.globalConstraintsRegisterPre[_globalConstraint].index]
.params = _params;
}
}
if ((when == GlobalConstraintInterface.CallPhase.Post)||
(when == GlobalConstraintInterface.CallPhase.PreAndPost)) {
if (!organization.globalConstraintsRegisterPost[_globalConstraint].isRegistered) {
organization.globalConstraintsPost.push(GlobalConstraint(_globalConstraint, _params));
organization.globalConstraintsRegisterPost[_globalConstraint] =
GlobalConstraintRegister(true, organization.globalConstraintsPost.length-1);
} else {
organization
.globalConstraintsPost[organization.globalConstraintsRegisterPost[_globalConstraint].index]
.params = _params;
}
}
emit AddGlobalConstraint(_globalConstraint, _params, when, _avatar);
return true;
}
/**
* @dev remove Global Constraint
* @param _globalConstraint the address of the global constraint to be remove.
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function removeGlobalConstraint (address _globalConstraint, address _avatar)
external onlyGlobalConstraintsScheme(_avatar) returns(bool)
{
GlobalConstraintInterface.CallPhase when = GlobalConstraintInterface(_globalConstraint).when();
if ((when == GlobalConstraintInterface.CallPhase.Pre)||
(when == GlobalConstraintInterface.CallPhase.PreAndPost)) {
removeGlobalConstraintPre(_globalConstraint, _avatar);
}
if ((when == GlobalConstraintInterface.CallPhase.Post)||
(when == GlobalConstraintInterface.CallPhase.PreAndPost)) {
removeGlobalConstraintPost(_globalConstraint, _avatar);
}
return true;
}
/**
* @dev upgrade the Controller
* The function will trigger an event 'UpgradeController'.
* @param _newController the address of the new controller.
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function upgradeController(address _newController, Avatar _avatar)
external onlyUpgradingScheme(address(_avatar)) returns(bool)
{
require(newControllers[address(_avatar)] == address(0)); // so the upgrade could be done once for a contract.
require(_newController != address(0));
newControllers[address(_avatar)] = _newController;
_avatar.transferOwnership(_newController);
require(_avatar.owner() == _newController);
if (organizations[address(_avatar)].nativeToken.owner() == address(this)) {
organizations[address(_avatar)].nativeToken.transferOwnership(_newController);
require(organizations[address(_avatar)].nativeToken.owner() == _newController);
}
if (organizations[address(_avatar)].nativeReputation.owner() == address(this)) {
organizations[address(_avatar)].nativeReputation.transferOwnership(_newController);
require(organizations[address(_avatar)].nativeReputation.owner() == _newController);
}
emit UpgradeController(address(this), _newController, address(_avatar));
return true;
}
/**
* @dev perform a generic call to an arbitrary contract
* @param _contract the contract's address to call
* @param _data ABI-encoded contract call to call `_contract` address.
* @param _avatar the controller's avatar address
* @param _value value (ETH) to transfer with the transaction
* @return bool -success
* bytes - the return value of the called _contract's function.
*/
function genericCall(address _contract, bytes calldata _data, Avatar _avatar, uint256 _value)
external
onlyGenericCallScheme(address(_avatar))
onlySubjectToConstraint("genericCall", address(_avatar))
returns (bool, bytes memory)
{
return _avatar.genericCall(_contract, _data, _value);
}
/**
* @dev send some ether
* @param _amountInWei the amount of ether (in Wei) to send
* @param _to address of the beneficiary
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function sendEther(uint256 _amountInWei, address payable _to, Avatar _avatar)
external
onlyRegisteredScheme(address(_avatar))
onlySubjectToConstraint("sendEther", address(_avatar))
returns(bool)
{
return _avatar.sendEther(_amountInWei, _to);
}
/**
* @dev send some amount of arbitrary ERC20 Tokens
* @param _externalToken the address of the Token Contract
* @param _to address of the beneficiary
* @param _value the amount of ether (in Wei) to send
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function externalTokenTransfer(IERC20 _externalToken, address _to, uint256 _value, Avatar _avatar)
external
onlyRegisteredScheme(address(_avatar))
onlySubjectToConstraint("externalTokenTransfer", address(_avatar))
returns(bool)
{
return _avatar.externalTokenTransfer(_externalToken, _to, _value);
}
/**
* @dev transfer token "from" address "to" address
* One must to approve the amount of tokens which can be spend from the
* "from" account.This can be done using externalTokenApprove.
* @param _externalToken the address of the Token Contract
* @param _from address of the account to send from
* @param _to address of the beneficiary
* @param _value the amount of ether (in Wei) to send
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function externalTokenTransferFrom(
IERC20 _externalToken,
address _from,
address _to,
uint256 _value,
Avatar _avatar)
external
onlyRegisteredScheme(address(_avatar))
onlySubjectToConstraint("externalTokenTransferFrom", address(_avatar))
returns(bool)
{
return _avatar.externalTokenTransferFrom(_externalToken, _from, _to, _value);
}
/**
* @dev externalTokenApproval approve the spender address to spend a specified amount of tokens
* on behalf of msg.sender.
* @param _externalToken the address of the Token Contract
* @param _spender address
* @param _value the amount of ether (in Wei) which the approval is referring to.
* @return bool which represents a success
*/
function externalTokenApproval(IERC20 _externalToken, address _spender, uint256 _value, Avatar _avatar)
external
onlyRegisteredScheme(address(_avatar))
onlySubjectToConstraint("externalTokenApproval", address(_avatar))
returns(bool)
{
return _avatar.externalTokenApproval(_externalToken, _spender, _value);
}
/**
* @dev metaData emits an event with a string, should contain the hash of some meta data.
* @param _metaData a string representing a hash of the meta data
* @param _avatar Avatar
* @return bool which represents a success
*/
function metaData(string calldata _metaData, Avatar _avatar)
external
onlyMetaDataScheme(address(_avatar))
returns(bool)
{
return _avatar.metaData(_metaData);
}
function isSchemeRegistered( address _scheme, address _avatar) external view returns(bool) {
return _isSchemeRegistered(_scheme, _avatar);
}
function getSchemeParameters(address _scheme, address _avatar) external view returns(bytes32) {
return organizations[_avatar].schemes[_scheme].paramsHash;
}
function getSchemePermissions(address _scheme, address _avatar) external view returns(bytes4) {
return organizations[_avatar].schemes[_scheme].permissions;
}
function getGlobalConstraintParameters(address _globalConstraint, address _avatar) external view returns(bytes32) {
Organization storage organization = organizations[_avatar];
GlobalConstraintRegister memory register = organization.globalConstraintsRegisterPre[_globalConstraint];
if (register.isRegistered) {
return organization.globalConstraintsPre[register.index].params;
}
register = organization.globalConstraintsRegisterPost[_globalConstraint];
if (register.isRegistered) {
return organization.globalConstraintsPost[register.index].params;
}
}
/**
* @dev globalConstraintsCount return the global constraint pre and post count
* @return uint256 globalConstraintsPre count.
* @return uint256 globalConstraintsPost count.
*/
function globalConstraintsCount(address _avatar) external view returns(uint, uint) {
return (
organizations[_avatar].globalConstraintsPre.length,
organizations[_avatar].globalConstraintsPost.length
);
}
function isGlobalConstraintRegistered(address _globalConstraint, address _avatar) external view returns(bool) {
return (organizations[_avatar].globalConstraintsRegisterPre[_globalConstraint].isRegistered ||
organizations[_avatar].globalConstraintsRegisterPost[_globalConstraint].isRegistered);
}
/**
* @dev getNativeReputation
* @param _avatar the organization avatar.
* @return organization native reputation
*/
function getNativeReputation(address _avatar) external view returns(address) {
return address(organizations[_avatar].nativeReputation);
}
/**
* @dev removeGlobalConstraintPre
* @param _globalConstraint the address of the global constraint to be remove.
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function removeGlobalConstraintPre(address _globalConstraint, address _avatar)
private returns(bool)
{
GlobalConstraintRegister memory globalConstraintRegister =
organizations[_avatar].globalConstraintsRegisterPre[_globalConstraint];
GlobalConstraint[] storage globalConstraints = organizations[_avatar].globalConstraintsPre;
if (globalConstraintRegister.isRegistered) {
if (globalConstraintRegister.index < globalConstraints.length-1) {
GlobalConstraint memory globalConstraint = globalConstraints[globalConstraints.length-1];
globalConstraints[globalConstraintRegister.index] = globalConstraint;
organizations[_avatar].globalConstraintsRegisterPre[globalConstraint.gcAddress].index =
globalConstraintRegister.index;
}
globalConstraints.length--;
delete organizations[_avatar].globalConstraintsRegisterPre[_globalConstraint];
emit RemoveGlobalConstraint(_globalConstraint, globalConstraintRegister.index, true, _avatar);
return true;
}
return false;
}
/**
* @dev removeGlobalConstraintPost
* @param _globalConstraint the address of the global constraint to be remove.
* @param _avatar the organization avatar.
* @return bool which represents a success
*/
function removeGlobalConstraintPost(address _globalConstraint, address _avatar)
private returns(bool)
{
GlobalConstraintRegister memory globalConstraintRegister =
organizations[_avatar].globalConstraintsRegisterPost[_globalConstraint];
GlobalConstraint[] storage globalConstraints = organizations[_avatar].globalConstraintsPost;
if (globalConstraintRegister.isRegistered) {
if (globalConstraintRegister.index < globalConstraints.length-1) {
GlobalConstraint memory globalConstraint = globalConstraints[globalConstraints.length-1];
globalConstraints[globalConstraintRegister.index] = globalConstraint;
organizations[_avatar].globalConstraintsRegisterPost[globalConstraint.gcAddress].index =
globalConstraintRegister.index;
}
globalConstraints.length--;
delete organizations[_avatar].globalConstraintsRegisterPost[_globalConstraint];
emit RemoveGlobalConstraint(_globalConstraint, globalConstraintRegister.index, false, _avatar);
return true;
}
return false;
}
function _isSchemeRegistered( address _scheme, address _avatar) private view returns(bool) {
return (organizations[_avatar].schemes[_scheme].permissions&bytes4(0x00000001) != bytes4(0));
}
}
// File: contracts/controller/Controller.sol
pragma solidity ^0.5.4;
/**
* @title Controller contract
* @dev A controller controls the organizations tokens, reputation and avatar.
* It is subject to a set of schemes and constraints that determine its behavior.
* Each scheme has it own parameters and operation permissions.
*/
contract Controller is ControllerInterface {
struct Scheme {
bytes32 paramsHash; // a hash "configuration" of the scheme
bytes4 permissions; // A bitwise flags of permissions,
// All 0: Not registered,
// 1st bit: Flag if the scheme is registered,
// 2nd bit: Scheme can register other schemes
// 3rd bit: Scheme can add/remove global constraints
// 4th bit: Scheme can upgrade the controller
// 5th bit: Scheme can call genericCall on behalf of
// the organization avatar
}
struct GlobalConstraint {
address gcAddress;
bytes32 params;
}
struct GlobalConstraintRegister {
bool isRegistered; //is registered
uint256 index; //index at globalConstraints
}
mapping(address=>Scheme) public schemes;
Avatar public avatar;
DAOToken public nativeToken;
Reputation public nativeReputation;
// newController will point to the new controller after the present controller is upgraded
address public newController;
// globalConstraintsPre that determine pre conditions for all actions on the controller
GlobalConstraint[] public globalConstraintsPre;
// globalConstraintsPost that determine post conditions for all actions on the controller
GlobalConstraint[] public globalConstraintsPost;
// globalConstraintsRegisterPre indicate if a globalConstraints is registered as a pre global constraint
mapping(address=>GlobalConstraintRegister) public globalConstraintsRegisterPre;
// globalConstraintsRegisterPost indicate if a globalConstraints is registered as a post global constraint
mapping(address=>GlobalConstraintRegister) public globalConstraintsRegisterPost;
event MintReputation (address indexed _sender, address indexed _to, uint256 _amount);
event BurnReputation (address indexed _sender, address indexed _from, uint256 _amount);
event MintTokens (address indexed _sender, address indexed _beneficiary, uint256 _amount);
event RegisterScheme (address indexed _sender, address indexed _scheme);
event UnregisterScheme (address indexed _sender, address indexed _scheme);
event UpgradeController(address indexed _oldController, address _newController);
event AddGlobalConstraint(
address indexed _globalConstraint,
bytes32 _params,
GlobalConstraintInterface.CallPhase _when);
event RemoveGlobalConstraint(address indexed _globalConstraint, uint256 _index, bool _isPre);
constructor( Avatar _avatar) public {
avatar = _avatar;
nativeToken = avatar.nativeToken();
nativeReputation = avatar.nativeReputation();
schemes[msg.sender] = Scheme({paramsHash: bytes32(0), permissions: bytes4(0x0000001F)});
}
// Do not allow mistaken calls:
// solhint-disable-next-line payable-fallback
function() external {
revert();
}
// Modifiers:
modifier onlyRegisteredScheme() {
require(schemes[msg.sender].permissions&bytes4(0x00000001) == bytes4(0x00000001));
_;
}
modifier onlyRegisteringSchemes() {
require(schemes[msg.sender].permissions&bytes4(0x00000002) == bytes4(0x00000002));
_;
}
modifier onlyGlobalConstraintsScheme() {
require(schemes[msg.sender].permissions&bytes4(0x00000004) == bytes4(0x00000004));
_;
}
modifier onlyUpgradingScheme() {
require(schemes[msg.sender].permissions&bytes4(0x00000008) == bytes4(0x00000008));
_;
}
modifier onlyGenericCallScheme() {
require(schemes[msg.sender].permissions&bytes4(0x00000010) == bytes4(0x00000010));
_;
}
modifier onlyMetaDataScheme() {
require(schemes[msg.sender].permissions&bytes4(0x00000010) == bytes4(0x00000010));
_;
}
modifier onlySubjectToConstraint(bytes32 func) {
uint256 idx;
for (idx = 0; idx < globalConstraintsPre.length; idx++) {
require(
(GlobalConstraintInterface(globalConstraintsPre[idx].gcAddress))
.pre(msg.sender, globalConstraintsPre[idx].params, func));
}
_;
for (idx = 0; idx < globalConstraintsPost.length; idx++) {
require(
(GlobalConstraintInterface(globalConstraintsPost[idx].gcAddress))
.post(msg.sender, globalConstraintsPost[idx].params, func));
}
}
modifier isAvatarValid(address _avatar) {
require(_avatar == address(avatar));
_;
}
/**
* @dev Mint `_amount` of reputation that are assigned to `_to` .
* @param _amount amount of reputation to mint
* @param _to beneficiary address
* @return bool which represents a success
*/
function mintReputation(uint256 _amount, address _to, address _avatar)
external
onlyRegisteredScheme
onlySubjectToConstraint("mintReputation")
isAvatarValid(_avatar)
returns(bool)
{
emit MintReputation(msg.sender, _to, _amount);
return nativeReputation.mint(_to, _amount);
}
/**
* @dev Burns `_amount` of reputation from `_from`
* @param _amount amount of reputation to burn
* @param _from The address that will lose the reputation
* @return bool which represents a success
*/
function burnReputation(uint256 _amount, address _from, address _avatar)
external
onlyRegisteredScheme
onlySubjectToConstraint("burnReputation")
isAvatarValid(_avatar)
returns(bool)
{
emit BurnReputation(msg.sender, _from, _amount);
return nativeReputation.burn(_from, _amount);
}
/**
* @dev mint tokens .
* @param _amount amount of token to mint
* @param _beneficiary beneficiary address
* @return bool which represents a success
*/
function mintTokens(uint256 _amount, address _beneficiary, address _avatar)
external
onlyRegisteredScheme
onlySubjectToConstraint("mintTokens")
isAvatarValid(_avatar)
returns(bool)
{
emit MintTokens(msg.sender, _beneficiary, _amount);
return nativeToken.mint(_beneficiary, _amount);
}
/**
* @dev register a scheme
* @param _scheme the address of the scheme
* @param _paramsHash a hashed configuration of the usage of the scheme
* @param _permissions the permissions the new scheme will have
* @return bool which represents a success
*/
function registerScheme(address _scheme, bytes32 _paramsHash, bytes4 _permissions, address _avatar)
external
onlyRegisteringSchemes
onlySubjectToConstraint("registerScheme")
isAvatarValid(_avatar)
returns(bool)
{
Scheme memory scheme = schemes[_scheme];
// Check scheme has at least the permissions it is changing, and at least the current permissions:
// Implementation is a bit messy. One must recall logic-circuits ^^
// produces non-zero if sender does not have all of the perms that are changing between old and new
require(bytes4(0x0000001f)&(_permissions^scheme.permissions)&(~schemes[msg.sender].permissions) == bytes4(0));
// produces non-zero if sender does not have all of the perms in the old scheme
require(bytes4(0x0000001f)&(scheme.permissions&(~schemes[msg.sender].permissions)) == bytes4(0));
// Add or change the scheme:
schemes[_scheme].paramsHash = _paramsHash;
schemes[_scheme].permissions = _permissions|bytes4(0x00000001);
emit RegisterScheme(msg.sender, _scheme);
return true;
}
/**
* @dev unregister a scheme
* @param _scheme the address of the scheme
* @return bool which represents a success
*/
function unregisterScheme( address _scheme, address _avatar)
external
onlyRegisteringSchemes
onlySubjectToConstraint("unregisterScheme")
isAvatarValid(_avatar)
returns(bool)
{
//check if the scheme is registered
if (_isSchemeRegistered(_scheme) == false) {
return false;
}
// Check the unregistering scheme has enough permissions:
require(bytes4(0x0000001f)&(schemes[_scheme].permissions&(~schemes[msg.sender].permissions)) == bytes4(0));
// Unregister:
emit UnregisterScheme(msg.sender, _scheme);
delete schemes[_scheme];
return true;
}
/**
* @dev unregister the caller's scheme
* @return bool which represents a success
*/
function unregisterSelf(address _avatar) external isAvatarValid(_avatar) returns(bool) {
if (_isSchemeRegistered(msg.sender) == false) {
return false;
}
delete schemes[msg.sender];
emit UnregisterScheme(msg.sender, msg.sender);
return true;
}
/**
* @dev add or update Global Constraint
* @param _globalConstraint the address of the global constraint to be added.
* @param _params the constraint parameters hash.
* @return bool which represents a success
*/
function addGlobalConstraint(address _globalConstraint, bytes32 _params, address _avatar)
external
onlyGlobalConstraintsScheme
isAvatarValid(_avatar)
returns(bool)
{
GlobalConstraintInterface.CallPhase when = GlobalConstraintInterface(_globalConstraint).when();
if ((when == GlobalConstraintInterface.CallPhase.Pre)||
(when == GlobalConstraintInterface.CallPhase.PreAndPost)) {
if (!globalConstraintsRegisterPre[_globalConstraint].isRegistered) {
globalConstraintsPre.push(GlobalConstraint(_globalConstraint, _params));
globalConstraintsRegisterPre[_globalConstraint] =
GlobalConstraintRegister(true, globalConstraintsPre.length-1);
}else {
globalConstraintsPre[globalConstraintsRegisterPre[_globalConstraint].index].params = _params;
}
}
if ((when == GlobalConstraintInterface.CallPhase.Post)||
(when == GlobalConstraintInterface.CallPhase.PreAndPost)) {
if (!globalConstraintsRegisterPost[_globalConstraint].isRegistered) {
globalConstraintsPost.push(GlobalConstraint(_globalConstraint, _params));
globalConstraintsRegisterPost[_globalConstraint] =
GlobalConstraintRegister(true, globalConstraintsPost.length-1);
}else {
globalConstraintsPost[globalConstraintsRegisterPost[_globalConstraint].index].params = _params;
}
}
emit AddGlobalConstraint(_globalConstraint, _params, when);
return true;
}
/**
* @dev remove Global Constraint
* @param _globalConstraint the address of the global constraint to be remove.
* @return bool which represents a success
*/
// solhint-disable-next-line code-complexity
function removeGlobalConstraint (address _globalConstraint, address _avatar)
external
onlyGlobalConstraintsScheme
isAvatarValid(_avatar)
returns(bool)
{
GlobalConstraintRegister memory globalConstraintRegister;
GlobalConstraint memory globalConstraint;
GlobalConstraintInterface.CallPhase when = GlobalConstraintInterface(_globalConstraint).when();
bool retVal = false;
if ((when == GlobalConstraintInterface.CallPhase.Pre)||
(when == GlobalConstraintInterface.CallPhase.PreAndPost)) {
globalConstraintRegister = globalConstraintsRegisterPre[_globalConstraint];
if (globalConstraintRegister.isRegistered) {
if (globalConstraintRegister.index < globalConstraintsPre.length-1) {
globalConstraint = globalConstraintsPre[globalConstraintsPre.length-1];
globalConstraintsPre[globalConstraintRegister.index] = globalConstraint;
globalConstraintsRegisterPre[globalConstraint.gcAddress].index = globalConstraintRegister.index;
}
globalConstraintsPre.length--;
delete globalConstraintsRegisterPre[_globalConstraint];
retVal = true;
}
}
if ((when == GlobalConstraintInterface.CallPhase.Post)||
(when == GlobalConstraintInterface.CallPhase.PreAndPost)) {
globalConstraintRegister = globalConstraintsRegisterPost[_globalConstraint];
if (globalConstraintRegister.isRegistered) {
if (globalConstraintRegister.index < globalConstraintsPost.length-1) {
globalConstraint = globalConstraintsPost[globalConstraintsPost.length-1];
globalConstraintsPost[globalConstraintRegister.index] = globalConstraint;
globalConstraintsRegisterPost[globalConstraint.gcAddress].index = globalConstraintRegister.index;
}
globalConstraintsPost.length--;
delete globalConstraintsRegisterPost[_globalConstraint];
retVal = true;
}
}
if (retVal) {
emit RemoveGlobalConstraint(
_globalConstraint,
globalConstraintRegister.index,
when == GlobalConstraintInterface.CallPhase.Pre
);
}
return retVal;
}
/**
* @dev upgrade the Controller
* The function will trigger an event 'UpgradeController'.
* @param _newController the address of the new controller.
* @return bool which represents a success
*/
function upgradeController(address _newController, Avatar _avatar)
external
onlyUpgradingScheme
isAvatarValid(address(_avatar))
returns(bool)
{
require(newController == address(0)); // so the upgrade could be done once for a contract.
require(_newController != address(0));
newController = _newController;
avatar.transferOwnership(_newController);
require(avatar.owner() == _newController);
if (nativeToken.owner() == address(this)) {
nativeToken.transferOwnership(_newController);
require(nativeToken.owner() == _newController);
}
if (nativeReputation.owner() == address(this)) {
nativeReputation.transferOwnership(_newController);
require(nativeReputation.owner() == _newController);
}
emit UpgradeController(address(this), newController);
return true;
}
/**
* @dev perform a generic call to an arbitrary contract
* @param _contract the contract's address to call
* @param _data ABI-encoded contract call to call `_contract` address.
* @param _avatar the controller's avatar address
* @param _value value (ETH) to transfer with the transaction
* @return bool -success
* bytes - the return value of the called _contract's function.
*/
function genericCall(address _contract, bytes calldata _data, Avatar _avatar, uint256 _value)
external
onlyGenericCallScheme
onlySubjectToConstraint("genericCall")
isAvatarValid(address(_avatar))
returns (bool, bytes memory)
{
return avatar.genericCall(_contract, _data, _value);
}
/**
* @dev send some ether
* @param _amountInWei the amount of ether (in Wei) to send
* @param _to address of the beneficiary
* @return bool which represents a success
*/
function sendEther(uint256 _amountInWei, address payable _to, Avatar _avatar)
external
onlyRegisteredScheme
onlySubjectToConstraint("sendEther")
isAvatarValid(address(_avatar))
returns(bool)
{
return avatar.sendEther(_amountInWei, _to);
}
/**
* @dev send some amount of arbitrary ERC20 Tokens
* @param _externalToken the address of the Token Contract
* @param _to address of the beneficiary
* @param _value the amount of ether (in Wei) to send
* @return bool which represents a success
*/
function externalTokenTransfer(IERC20 _externalToken, address _to, uint256 _value, Avatar _avatar)
external
onlyRegisteredScheme
onlySubjectToConstraint("externalTokenTransfer")
isAvatarValid(address(_avatar))
returns(bool)
{
return avatar.externalTokenTransfer(_externalToken, _to, _value);
}
/**
* @dev transfer token "from" address "to" address
* One must to approve the amount of tokens which can be spend from the
* "from" account.This can be done using externalTokenApprove.
* @param _externalToken the address of the Token Contract
* @param _from address of the account to send from
* @param _to address of the beneficiary
* @param _value the amount of ether (in Wei) to send
* @return bool which represents a success
*/
function externalTokenTransferFrom(
IERC20 _externalToken,
address _from,
address _to,
uint256 _value,
Avatar _avatar)
external
onlyRegisteredScheme
onlySubjectToConstraint("externalTokenTransferFrom")
isAvatarValid(address(_avatar))
returns(bool)
{
return avatar.externalTokenTransferFrom(_externalToken, _from, _to, _value);
}
/**
* @dev externalTokenApproval approve the spender address to spend a specified amount of tokens
* on behalf of msg.sender.
* @param _externalToken the address of the Token Contract
* @param _spender address
* @param _value the amount of ether (in Wei) which the approval is referring to.
* @return bool which represents a success
*/
function externalTokenApproval(IERC20 _externalToken, address _spender, uint256 _value, Avatar _avatar)
external
onlyRegisteredScheme
onlySubjectToConstraint("externalTokenIncreaseApproval")
isAvatarValid(address(_avatar))
returns(bool)
{
return avatar.externalTokenApproval(_externalToken, _spender, _value);
}
/**
* @dev metaData emits an event with a string, should contain the hash of some meta data.
* @param _metaData a string representing a hash of the meta data
* @param _avatar Avatar
* @return bool which represents a success
*/
function metaData(string calldata _metaData, Avatar _avatar)
external
onlyMetaDataScheme
isAvatarValid(address(_avatar))
returns(bool)
{
return avatar.metaData(_metaData);
}
/**
* @dev getNativeReputation
* @param _avatar the organization avatar.
* @return organization native reputation
*/
function getNativeReputation(address _avatar) external isAvatarValid(_avatar) view returns(address) {
return address(nativeReputation);
}
function isSchemeRegistered(address _scheme, address _avatar) external isAvatarValid(_avatar) view returns(bool) {
return _isSchemeRegistered(_scheme);
}
function getSchemeParameters(address _scheme, address _avatar)
external
isAvatarValid(_avatar)
view
returns(bytes32)
{
return schemes[_scheme].paramsHash;
}
function getSchemePermissions(address _scheme, address _avatar)
external
isAvatarValid(_avatar)
view
returns(bytes4)
{
return schemes[_scheme].permissions;
}
function getGlobalConstraintParameters(address _globalConstraint, address) external view returns(bytes32) {
GlobalConstraintRegister memory register = globalConstraintsRegisterPre[_globalConstraint];
if (register.isRegistered) {
return globalConstraintsPre[register.index].params;
}
register = globalConstraintsRegisterPost[_globalConstraint];
if (register.isRegistered) {
return globalConstraintsPost[register.index].params;
}
}
/**
* @dev globalConstraintsCount return the global constraint pre and post count
* @return uint256 globalConstraintsPre count.
* @return uint256 globalConstraintsPost count.
*/
function globalConstraintsCount(address _avatar)
external
isAvatarValid(_avatar)
view
returns(uint, uint)
{
return (globalConstraintsPre.length, globalConstraintsPost.length);
}
function isGlobalConstraintRegistered(address _globalConstraint, address _avatar)
external
isAvatarValid(_avatar)
view
returns(bool)
{
return (globalConstraintsRegisterPre[_globalConstraint].isRegistered ||
globalConstraintsRegisterPost[_globalConstraint].isRegistered);
}
function _isSchemeRegistered(address _scheme) private view returns(bool) {
return (schemes[_scheme].permissions&bytes4(0x00000001) != bytes4(0));
}
}
// File: contracts/universalSchemes/DaoCreator.sol
pragma solidity ^0.5.4;
/**
* @title ControllerCreator for creating a single controller.
*/
contract ControllerCreator {
function create(Avatar _avatar) public returns(address) {
Controller controller = new Controller(_avatar);
controller.registerScheme(msg.sender, bytes32(0), bytes4(0x0000001f), address(_avatar));
controller.unregisterScheme(address(this), address(_avatar));
return address(controller);
}
}
/**
* @title Genesis Scheme that creates organizations
*/
contract DaoCreator {
mapping(address=>address) public locks;
event NewOrg (address _avatar);
event InitialSchemesSet (address _avatar);
ControllerCreator private controllerCreator;
constructor(ControllerCreator _controllerCreator) public {
controllerCreator = _controllerCreator;
}
/**
* @dev addFounders add founders to the organization.
* this function can be called only after forgeOrg and before setSchemes
* @param _avatar the organization avatar
* @param _founders An array with the addresses of the founders of the organization
* @param _foundersTokenAmount An array of amount of tokens that the founders
* receive in the new organization
* @param _foundersReputationAmount An array of amount of reputation that the
* founders receive in the new organization
* @return bool true or false
*/
function addFounders (
Avatar _avatar,
address[] calldata _founders,
uint[] calldata _foundersTokenAmount,
uint[] calldata _foundersReputationAmount
)
external
returns(bool)
{
require(_founders.length == _foundersTokenAmount.length);
require(_founders.length == _foundersReputationAmount.length);
require(_founders.length > 0);
require(locks[address(_avatar)] == msg.sender);
// Mint token and reputation for founders:
for (uint256 i = 0; i < _founders.length; i++) {
require(_founders[i] != address(0));
if (_foundersTokenAmount[i] > 0) {
ControllerInterface(
_avatar.owner()).mintTokens(_foundersTokenAmount[i], _founders[i], address(_avatar));
}
if (_foundersReputationAmount[i] > 0) {
ControllerInterface(
_avatar.owner()).mintReputation(_foundersReputationAmount[i], _founders[i], address(_avatar));
}
}
return true;
}
/**
* @dev Create a new organization
* @param _orgName The name of the new organization
* @param _tokenName The name of the token associated with the organization
* @param _tokenSymbol The symbol of the token
* @param _founders An array with the addresses of the founders of the organization
* @param _foundersTokenAmount An array of amount of tokens that the founders
* receive in the new organization
* @param _foundersReputationAmount An array of amount of reputation that the
* founders receive in the new organization
* @param _uController universal controller instance
* if _uController address equal to zero the organization will use none universal controller.
* @param _cap token cap - 0 for no cap.
* @return The address of the avatar of the controller
*/
function forgeOrg (
string calldata _orgName,
string calldata _tokenName,
string calldata _tokenSymbol,
address[] calldata _founders,
uint[] calldata _foundersTokenAmount,
uint[] calldata _foundersReputationAmount,
UController _uController,
uint256 _cap
)
external
returns(address)
{
//The call for the private function is needed to bypass a deep stack issues
return _forgeOrg(
_orgName,
_tokenName,
_tokenSymbol,
_founders,
_foundersTokenAmount,
_foundersReputationAmount,
_uController,
_cap);
}
/**
* @dev Set initial schemes for the organization.
* @param _avatar organization avatar (returns from forgeOrg)
* @param _schemes the schemes to register for the organization
* @param _params the schemes's params
* @param _permissions the schemes permissions.
* @param _metaData dao meta data hash
*/
function setSchemes (
Avatar _avatar,
address[] calldata _schemes,
bytes32[] calldata _params,
bytes4[] calldata _permissions,
string calldata _metaData
)
external
{
// this action can only be executed by the account that holds the lock
// for this controller
require(locks[address(_avatar)] == msg.sender);
// register initial schemes:
ControllerInterface controller = ControllerInterface(_avatar.owner());
for (uint256 i = 0; i < _schemes.length; i++) {
controller.registerScheme(_schemes[i], _params[i], _permissions[i], address(_avatar));
}
controller.metaData(_metaData, _avatar);
// Unregister self:
controller.unregisterScheme(address(this), address(_avatar));
// Remove lock:
delete locks[address(_avatar)];
emit InitialSchemesSet(address(_avatar));
}
/**
* @dev Create a new organization
* @param _orgName The name of the new organization
* @param _tokenName The name of the token associated with the organization
* @param _tokenSymbol The symbol of the token
* @param _founders An array with the addresses of the founders of the organization
* @param _foundersTokenAmount An array of amount of tokens that the founders
* receive in the new organization
* @param _foundersReputationAmount An array of amount of reputation that the
* founders receive in the new organization
* @param _uController universal controller instance
* if _uController address equal to zero the organization will use none universal controller.
* @param _cap token cap - 0 for no cap.
* @return The address of the avatar of the controller
*/
function _forgeOrg (
string memory _orgName,
string memory _tokenName,
string memory _tokenSymbol,
address[] memory _founders,
uint[] memory _foundersTokenAmount,
uint[] memory _foundersReputationAmount,
UController _uController,
uint256 _cap
) private returns(address)
{
// Create Token, Reputation and Avatar:
require(_founders.length == _foundersTokenAmount.length);
require(_founders.length == _foundersReputationAmount.length);
require(_founders.length > 0);
DAOToken nativeToken = new DAOToken(_tokenName, _tokenSymbol, _cap);
Reputation nativeReputation = new Reputation();
Avatar avatar = new Avatar(_orgName, nativeToken, nativeReputation);
ControllerInterface controller;
// Mint token and reputation for founders:
for (uint256 i = 0; i < _founders.length; i++) {
require(_founders[i] != address(0));
if (_foundersTokenAmount[i] > 0) {
nativeToken.mint(_founders[i], _foundersTokenAmount[i]);
}
if (_foundersReputationAmount[i] > 0) {
nativeReputation.mint(_founders[i], _foundersReputationAmount[i]);
}
}
// Create Controller:
if (UController(0) == _uController) {
controller = ControllerInterface(controllerCreator.create(avatar));
avatar.transferOwnership(address(controller));
// Transfer ownership:
nativeToken.transferOwnership(address(controller));
nativeReputation.transferOwnership(address(controller));
} else {
controller = _uController;
avatar.transferOwnership(address(controller));
// Transfer ownership:
nativeToken.transferOwnership(address(controller));
nativeReputation.transferOwnership(address(controller));
_uController.newOrganization(avatar);
}
locks[address(avatar)] = msg.sender;
emit NewOrg (address(avatar));
return (address(avatar));
}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"constant":false,"inputs":[{"name":"_avatar","type":"address"},{"name":"_schemes","type":"address[]"},{"name":"_params","type":"bytes32[]"},{"name":"_permissions","type":"bytes4[]"},{"name":"_metaData","type":"string"}],"name":"setSchemes","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_avatar","type":"address"},{"name":"_founders","type":"address[]"},{"name":"_foundersTokenAmount","type":"uint256[]"},{"name":"_foundersReputationAmount","type":"uint256[]"}],"name":"addFounders","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"locks","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_orgName","type":"string"},{"name":"_tokenName","type":"string"},{"name":"_tokenSymbol","type":"string"},{"name":"_founders","type":"address[]"},{"name":"_foundersTokenAmount","type":"uint256[]"},{"name":"_foundersReputationAmount","type":"uint256[]"},{"name":"_uController","type":"address"},{"name":"_cap","type":"uint256"}],"name":"forgeOrg","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"_controllerCreator","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"name":"_avatar","type":"address"}],"name":"NewOrg","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"_avatar","type":"address"}],"name":"InitialSchemesSet","type":"event"}]Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000002e472d11dc05afd8bd4136df24068d9cccb49a3
-----Decoded View---------------
Arg [0] : _controllerCreator (address): 0x02E472D11dC05AFD8bD4136df24068d9cCcB49A3
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000002e472d11dc05afd8bd4136df24068d9cccb49a3
Swarm Source
bzzr://5ac32143016932597e1e59a93d3a5d77b5878d62f81580eca0681f1378f6595e
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Multichain Portfolio | 27 Chains
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.