{"file_path":".sol","creation_status":"success","source_code":"pragma solidity ^0.5.0;\r\n\r\n\r\n// Bitfinex LEO Token 2019\r\n// Based on Giveth's MiniMe Token framework\r\n\r\ncontract Ownable {\r\n\r\n  address public owner;\r\n\r\n  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\r\n\r\n  constructor() public {\r\n    owner = msg.sender;\r\n  }\r\n\r\n  modifier onlyOwner() {\r\n    require(msg.sender == owner);\r\n    _;\r\n  }\r\n\r\n  function transferOwnership(address newOwner) public onlyOwner {\r\n    require(newOwner != address(0));\r\n    emit OwnershipTransferred(owner, newOwner);\r\n    owner = newOwner;\r\n  }\r\n\r\n}\r\n\r\n\r\n// Modified 2019, Will Harborne\r\n\r\n/*\r\n    Copyright 2016, Jordi Baylina\r\n\r\n    This program is free software: you can redistribute it and/or modify\r\n    it under the terms of the GNU General Public License as published by\r\n    the Free Software Foundation, either version 3 of the License, or\r\n    (at your option) any later version.\r\n\r\n    This program is distributed in the hope that it will be useful,\r\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\r\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r\n    GNU General Public License for more details.\r\n\r\n    You should have received a copy of the GNU General Public License\r\n    along with this program.  If not, see <http://www.gnu.org/licenses/>.\r\n */\r\n\r\n/// @title MiniMeToken Contract\r\n/// @author Jordi Baylina\r\n/// @dev This token contract's goal is to make it easy for anyone to clone this\r\n///  token using the token distribution at a given block, this will allow DAO's\r\n///  and DApps to upgrade their features in a decentralized manner without\r\n///  affecting the original token\r\n/// @dev It is ERC20 compliant, but still needs to under go further testing.\r\n\r\ncontract Controlled {\r\n\r\n    event ControlTransferred(address indexed previousControler, address indexed newController);\r\n\r\n    /// @notice The address of the controller is the only address that can call\r\n    ///  a function with this modifier\r\n    modifier onlyController { require(msg.sender == controller); _; }\r\n\r\n    address public controller;\r\n\r\n    constructor() public { controller = msg.sender;}\r\n\r\n    /// @notice Changes the controller of the contract\r\n    /// @param _newController The new controller of the contract\r\n    function changeController(address _newController) public onlyController {\r\n        emit ControlTransferred(controller, _newController);\r\n        controller = _newController;\r\n    }\r\n}\r\n\r\ncontract TokenController {\r\n    /// @notice Called when `_owner` sends ether to the MiniMe Token contract\r\n    /// @param _owner The address that sent the ether to create tokens\r\n    /// @return True if the ether is accepted, false if it throws\r\n    function proxyPayment(address _owner) public payable returns(bool);\r\n\r\n    /// @notice Notifies the controller about a token transfer allowing the\r\n    ///  controller to react if desired\r\n    /// @param _from The origin of the transfer\r\n    /// @param _to The destination of the transfer\r\n    /// @param _amount The amount of the transfer\r\n    /// @return False if the controller does not authorize the transfer\r\n    function onTransfer(address _from, address _to, uint _amount) public returns(bool);\r\n\r\n    /// @notice Notifies the controller about an approval allowing the\r\n    ///  controller to react if desired\r\n    /// @param _owner The address that calls `approve()`\r\n    /// @param _spender The spender in the `approve()` call\r\n    /// @param _amount The amount in the `approve()` call\r\n    /// @return False if the controller does not authorize the approval\r\n    function onApprove(address _owner, address _spender, uint _amount) public\r\n        returns(bool);\r\n\r\n}\r\n\r\n\r\ncontract ApproveAndCallFallBack {\r\n    function receiveApproval(address from, uint256 _amount, address _token, bytes memory _data) public;\r\n}\r\n\r\n/// @dev The actual token contract, the default controller is the msg.sender\r\n///  that deploys the contract, so usually this token will be deployed by a\r\n///  token controller contract, which Giveth will call a \"Campaign\"\r\n/// @dev The actual token contract, the default controller is the msg.sender\r\n///  that deploys the contract, so usually this token will be deployed by a\r\n///  token controller contract, which Giveth will call a \"Campaign\"\r\ncontract MiniMeToken is Controlled {\r\n\r\n    string public name;                //The Token's name: e.g. DigixDAO Tokens\r\n    uint8 public decimals;             //Number of decimals of the smallest unit\r\n    string public symbol;              //An identifier: e.g. REP\r\n    string public version = '3.0.0'; //An arbitrary versioning scheme\r\n\r\n\r\n    /// @dev `Checkpoint` is the structure that attaches a block number to a\r\n    ///  given value, the block number attached is the one that last changed the\r\n    ///  value\r\n    struct  Checkpoint {\r\n\r\n        // `fromBlock` is the block number that the value was generated from\r\n        uint256 fromBlock;\r\n\r\n        // `value` is the amount of tokens at a specific block number\r\n        uint256 value;\r\n    }\r\n\r\n    // `parentToken` is the Token address that was cloned to produce this token;\r\n    //  it will be 0x0 for a token that was not cloned\r\n    MiniMeToken public parentToken;\r\n\r\n    // `parentSnapShotBlock` is the block number from the Parent Token that was\r\n    //  used to determine the initial distribution of the Clone Token\r\n    uint public parentSnapShotBlock;\r\n\r\n    // `creationBlock` is the block number that the Clone Token was created\r\n    uint public creationBlock;\r\n\r\n    // `balances` is the map that tracks the balance of each address, in this\r\n    //  contract when the balance changes the block number that the change\r\n    //  occurred is also included in the map\r\n    mapping (address => Checkpoint[]) balances;\r\n\r\n    // `allowed` tracks any extra transfer rights as in all ERC20 tokens\r\n    mapping (address => mapping (address => uint256)) allowed;\r\n\r\n    // Tracks the history of the `totalSupply` of the token\r\n    Checkpoint[] totalSupplyHistory;\r\n\r\n    // Flag that determines if the token is transferable or not.\r\n    bool public transfersEnabled;\r\n\r\n    // The factory used to create new clone tokens\r\n    MiniMeTokenFactory public tokenFactory;\r\n\r\n////////////////\r\n// Constructor\r\n////////////////\r\n\r\n    /// @notice Constructor to create a MiniMeToken\r\n    /// @param _tokenFactory The address of the MiniMeTokenFactory contract that\r\n    ///  will create the Clone token contracts, the token factory needs to be\r\n    ///  deployed first\r\n    /// @param _parentToken Address of the parent token, set to 0x0 if it is a\r\n    ///  new token\r\n    /// @param _parentSnapShotBlock Block of the parent token that will\r\n    ///  determine the initial distribution of the clone token, set to 0 if it\r\n    ///  is a new token\r\n    /// @param _tokenName Name of the new token\r\n    /// @param _decimalUnits Number of decimals of the new token\r\n    /// @param _tokenSymbol Token Symbol for the new token\r\n    /// @param _transfersEnabled If true, tokens will be able to be transferred\r\n    constructor(\r\n        address _tokenFactory,\r\n        address payable _parentToken,\r\n        uint _parentSnapShotBlock,\r\n        string memory _tokenName,\r\n        uint8 _decimalUnits,\r\n        string memory _tokenSymbol,\r\n        bool _transfersEnabled\r\n    ) public {\r\n        tokenFactory = MiniMeTokenFactory(_tokenFactory);\r\n        name = _tokenName;                                 // Set the name\r\n        decimals = _decimalUnits;                          // Set the decimals\r\n        symbol = _tokenSymbol;                             // Set the symbol\r\n        parentToken = MiniMeToken(_parentToken);\r\n        parentSnapShotBlock = _parentSnapShotBlock;\r\n        transfersEnabled = _transfersEnabled;\r\n        creationBlock = block.number;\r\n    }\r\n\r\n\r\n///////////////////\r\n// ERC20 Methods\r\n///////////////////\r\n\r\n    uint constant MAX_UINT = 2**256 - 1;\r\n\r\n    /// @notice Send `_amount` tokens to `_to` from `msg.sender`\r\n    /// @param _to The address of the recipient\r\n    /// @param _amount The amount of tokens to be transferred\r\n    /// @return Whether the transfer was successful or not\r\n    function transfer(address _to, uint256 _amount) public returns (bool success) {\r\n        require(transfersEnabled);\r\n        doTransfer(msg.sender, _to, _amount);\r\n        return true;\r\n    }\r\n\r\n    /// @notice Send `_amount` tokens to `_to` from `_from` on the condition it\r\n    ///  is approved by `_from`\r\n    /// @param _from The address holding the tokens being transferred\r\n    /// @param _to The address of the recipient\r\n    /// @param _amount The amount of tokens to be transferred\r\n    /// @return True if the transfer was successful\r\n    function transferFrom(address _from, address _to, uint256 _amount\r\n    ) public returns (bool success) {\r\n\r\n        // The controller of this contract can move tokens around at will,\r\n        //  this is important to recognize! Confirm that you trust the\r\n        //  controller of this contract, which in most situations should be\r\n        //  another open source smart contract or 0x0\r\n        if (msg.sender != controller) {\r\n            require(transfersEnabled);\r\n\r\n            // The standard ERC 20 transferFrom functionality\r\n            if (allowed[_from][msg.sender] < MAX_UINT) {\r\n                require(allowed[_from][msg.sender] >= _amount);\r\n                allowed[_from][msg.sender] -= _amount;\r\n            }\r\n        }\r\n        doTransfer(_from, _to, _amount);\r\n        return true;\r\n    }\r\n\r\n    /// @dev This is the actual transfer function in the token contract, it can\r\n    ///  only be called by other functions in this contract.\r\n    /// @param _from The address holding the tokens being transferred\r\n    /// @param _to The address of the recipient\r\n    /// @param _amount The amount of tokens to be transferred\r\n    /// @return True if the transfer was successful\r\n    function doTransfer(address _from, address _to, uint _amount\r\n    ) internal {\r\n\r\n           if (_amount == 0) {\r\n               emit Transfer(_from, _to, _amount);    // Follow the spec to louch the event when transfer 0\r\n               return;\r\n           }\r\n\r\n           require(parentSnapShotBlock < block.number);\r\n\r\n           // Do not allow transfer to 0x0 or the token contract itself\r\n           require((_to != address(0)) && (_to != address(this)));\r\n\r\n           // If the amount being transfered is more than the balance of the\r\n           //  account the transfer throws\r\n           uint256 previousBalanceFrom = balanceOfAt(_from, block.number);\r\n\r\n           require(previousBalanceFrom >= _amount);\r\n\r\n           // Alerts the token controller of the transfer\r\n           if (isContract(controller)) {\r\n               require(TokenController(controller).onTransfer(_from, _to, _amount));\r\n           }\r\n\r\n           // First update the balance array with the new value for the address\r\n           //  sending the tokens\r\n           updateValueAtNow(balances[_from], previousBalanceFrom - _amount);\r\n\r\n           // Then update the balance array with the new value for the address\r\n           //  receiving the tokens\r\n           uint256 previousBalanceTo = balanceOfAt(_to, block.number);\r\n           require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow\r\n           updateValueAtNow(balances[_to], previousBalanceTo + _amount);\r\n\r\n           // An event to make the transfer easy to find on the blockchain\r\n           emit Transfer(_from, _to, _amount);\r\n\r\n    }\r\n\r\n    /// @param _owner The address that's balance is being requested\r\n    /// @return The balance of `_owner` at the current block\r\n    function balanceOf(address _owner) public view returns (uint256 balance) {\r\n        return balanceOfAt(_owner, block.number);\r\n    }\r\n\r\n    /// @notice `msg.sender` approves `_spender` to spend `_amount` tokens on\r\n    ///  its behalf. This is a modified version of the ERC20 approve function\r\n    ///  to be a little bit safer\r\n    /// @param _spender The address of the account able to transfer the tokens\r\n    /// @param _amount The amount of tokens to be approved for transfer\r\n    /// @return True if the approval was successful\r\n    function approve(address _spender, uint256 _amount) public returns (bool success) {\r\n        require(transfersEnabled);\r\n\r\n        // To change the approve amount you first have to reduce the addresses`\r\n        //  allowance to zero by calling `approve(_spender,0)` if it is not\r\n        //  already 0 to mitigate the race condition described here:\r\n        //  https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\r\n        require((_amount == 0) || (allowed[msg.sender][_spender] == 0));\r\n\r\n        // Alerts the token controller of the approve function call\r\n        if (isContract(controller)) {\r\n            require(TokenController(controller).onApprove(msg.sender, _spender, _amount));\r\n        }\r\n\r\n        allowed[msg.sender][_spender] = _amount;\r\n        emit Approval(msg.sender, _spender, _amount);\r\n        return true;\r\n    }\r\n\r\n    /// @dev This function makes it easy to read the `allowed[]` map\r\n    /// @param _owner The address of the account that owns the token\r\n    /// @param _spender The address of the account able to transfer the tokens\r\n    /// @return Amount of remaining tokens of _owner that _spender is allowed\r\n    ///  to spend\r\n    function allowance(address _owner, address _spender\r\n    ) public view returns (uint256 remaining) {\r\n        return allowed[_owner][_spender];\r\n    }\r\n\r\n    /// @notice `msg.sender` approves `_spender` to send `_amount` tokens on\r\n    ///  its behalf, and then a function is triggered in the contract that is\r\n    ///  being approved, `_spender`. This allows users to use their tokens to\r\n    ///  interact with contracts in one function call instead of two\r\n    /// @param _spender The address of the contract able to transfer the tokens\r\n    /// @param _amount The amount of tokens to be approved for transfer\r\n    /// @return True if the function call was successful\r\n    function approveAndCall(address _spender, uint256 _amount, bytes memory _extraData\r\n    ) public returns (bool success) {\r\n        require(approve(_spender, _amount));\r\n\r\n        ApproveAndCallFallBack(_spender).receiveApproval(\r\n            msg.sender,\r\n            _amount,\r\n            address(this),\r\n            _extraData\r\n        );\r\n\r\n        return true;\r\n    }\r\n\r\n    /// @dev This function makes it easy to get the total number of tokens\r\n    /// @return The total number of tokens\r\n    function totalSupply() public view returns (uint) {\r\n        return totalSupplyAt(block.number);\r\n    }\r\n\r\n\r\n////////////////\r\n// Query balance and totalSupply in History\r\n////////////////\r\n\r\n    /// @dev Queries the balance of `_owner` at a specific `_blockNumber`\r\n    /// @param _owner The address from which the balance will be retrieved\r\n    /// @param _blockNumber The block number when the balance is queried\r\n    /// @return The balance at `_blockNumber`\r\n    function balanceOfAt(address _owner, uint _blockNumber) public view\r\n        returns (uint) {\r\n\r\n        // These next few lines are used when the balance of the token is\r\n        //  requested before a check point was ever created for this token, it\r\n        //  requires that the `parentToken.balanceOfAt` be queried at the\r\n        //  genesis block for that token as this contains initial balance of\r\n        //  this token\r\n        if ((balances[_owner].length == 0)\r\n            || (balances[_owner][0].fromBlock > _blockNumber)) {\r\n            if (address(parentToken) != address(0)) {\r\n                return parentToken.balanceOfAt(_owner, min(_blockNumber, parentSnapShotBlock));\r\n            } else {\r\n                // Has no parent\r\n                return 0;\r\n            }\r\n\r\n        // This will return the expected balance during normal situations\r\n        } else {\r\n            return getValueAt(balances[_owner], _blockNumber);\r\n        }\r\n    }\r\n\r\n    /// @notice Total amount of tokens at a specific `_blockNumber`.\r\n    /// @param _blockNumber The block number when the totalSupply is queried\r\n    /// @return The total amount of tokens at `_blockNumber`\r\n    function totalSupplyAt(uint _blockNumber) public view returns(uint) {\r\n\r\n        // These next few lines are used when the totalSupply of the token is\r\n        //  requested before a check point was ever created for this token, it\r\n        //  requires that the `parentToken.totalSupplyAt` be queried at the\r\n        //  genesis block for this token as that contains totalSupply of this\r\n        //  token at this block number.\r\n        if ((totalSupplyHistory.length == 0)\r\n            || (totalSupplyHistory[0].fromBlock > _blockNumber)) {\r\n            if (address(parentToken) != address(0)) {\r\n                return parentToken.totalSupplyAt(min(_blockNumber, parentSnapShotBlock));\r\n            } else {\r\n                return 0;\r\n            }\r\n\r\n        // This will return the expected totalSupply during normal situations\r\n        } else {\r\n            return getValueAt(totalSupplyHistory, _blockNumber);\r\n        }\r\n    }\r\n\r\n////////////////\r\n// Clone Token Method\r\n////////////////\r\n\r\n    /// @notice Creates a new clone token with the initial distribution being\r\n    ///  this token at `_snapshotBlock`\r\n    /// @param _cloneTokenName Name of the clone token\r\n    /// @param _cloneDecimalUnits Number of decimals of the smallest unit\r\n    /// @param _cloneTokenSymbol Symbol of the clone token\r\n    /// @param _snapshotBlock Block when the distribution of the parent token is\r\n    ///  copied to set the initial distribution of the new clone token;\r\n    ///  if the block is zero than the actual block, the current block is used\r\n    /// @param _transfersEnabled True if transfers are allowed in the clone\r\n    /// @return The address of the new MiniMeToken Contract\r\n    function createCloneToken(\r\n        string memory _cloneTokenName,\r\n        uint8 _cloneDecimalUnits,\r\n        string memory _cloneTokenSymbol,\r\n        uint _snapshotBlock,\r\n        bool _transfersEnabled\r\n        ) public returns(address) {\r\n        if (_snapshotBlock == 0) _snapshotBlock = block.number;\r\n        MiniMeToken cloneToken = tokenFactory.createCloneToken(\r\n            address(this),\r\n            _snapshotBlock,\r\n            _cloneTokenName,\r\n            _cloneDecimalUnits,\r\n            _cloneTokenSymbol,\r\n            _transfersEnabled\r\n            );\r\n\r\n        cloneToken.changeController(msg.sender);\r\n\r\n        // An event to make the token easy to find on the blockchain\r\n        emit NewCloneToken(address(cloneToken), _snapshotBlock);\r\n        return address(cloneToken);\r\n    }\r\n\r\n////////////////\r\n// Generate and destroy tokens\r\n////////////////\r\n\r\n    /// @notice Generates `_amount` tokens that are assigned to `_owner`\r\n    /// @param _owner The address that will be assigned the new tokens\r\n    /// @param _amount The quantity of tokens generated\r\n    /// @return True if the tokens are generated correctly\r\n    function generateTokens(address _owner, uint _amount\r\n    ) public onlyController returns (bool) {\r\n        uint curTotalSupply = totalSupply();\r\n        require(curTotalSupply + _amount >= curTotalSupply); // Check for overflow\r\n        uint previousBalanceTo = balanceOf(_owner);\r\n        require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow\r\n        updateValueAtNow(totalSupplyHistory, curTotalSupply + _amount);\r\n        updateValueAtNow(balances[_owner], previousBalanceTo + _amount);\r\n        emit Transfer(address(0), _owner, _amount);\r\n        return true;\r\n    }\r\n\r\n\r\n    /// @notice Burns `_amount` tokens from `_owner`\r\n    /// @param _owner The address that will lose the tokens\r\n    /// @param _amount The quantity of tokens to burn\r\n    /// @return True if the tokens are burned correctly\r\n    function destroyTokens(address _owner, uint _amount\r\n    ) onlyController public returns (bool) {\r\n        uint curTotalSupply = totalSupply();\r\n        require(curTotalSupply >= _amount);\r\n        uint previousBalanceFrom = balanceOf(_owner);\r\n        require(previousBalanceFrom >= _amount);\r\n        updateValueAtNow(totalSupplyHistory, curTotalSupply - _amount);\r\n        updateValueAtNow(balances[_owner], previousBalanceFrom - _amount);\r\n        emit Transfer(_owner, address(0), _amount);\r\n        return true;\r\n    }\r\n\r\n////////////////\r\n// Enable tokens transfers\r\n////////////////\r\n\r\n\r\n    /// @notice Enables token holders to transfer their tokens freely if true\r\n    /// @param _transfersEnabled True if transfers are allowed in the clone\r\n    function enableTransfers(bool _transfersEnabled) public onlyController {\r\n        transfersEnabled = _transfersEnabled;\r\n    }\r\n\r\n////////////////\r\n// Internal helper functions to query and set a value in a snapshot array\r\n////////////////\r\n\r\n    /// @dev `getValueAt` retrieves the number of tokens at a given block number\r\n    /// @param checkpoints The history of values being queried\r\n    /// @param _block The block number to retrieve the value at\r\n    /// @return The number of tokens being queried\r\n    function getValueAt(Checkpoint[] storage checkpoints, uint _block\r\n    ) view internal returns (uint) {\r\n        if (checkpoints.length == 0) return 0;\r\n\r\n        // Shortcut for the actual value\r\n        if (_block >= checkpoints[checkpoints.length-1].fromBlock)\r\n            return checkpoints[checkpoints.length-1].value;\r\n        if (_block < checkpoints[0].fromBlock) return 0;\r\n\r\n        // Binary search of the value in the array\r\n        uint min = 0;\r\n        uint max = checkpoints.length-1;\r\n        uint mid = 0;\r\n        while (max > min) {\r\n            mid = (max + min + 1)/ 2;\r\n            if (checkpoints[mid].fromBlock<=_block) {\r\n                min = mid;\r\n            } else {\r\n                max = mid-1;\r\n            }\r\n        }\r\n        return checkpoints[min].value;\r\n    }\r\n\r\n    /// @dev `updateValueAtNow` used to update the `balances` map and the\r\n    ///  `totalSupplyHistory`\r\n    /// @param checkpoints The history of data being updated\r\n    /// @param _value The new number of tokens\r\n    function updateValueAtNow(Checkpoint[] storage checkpoints, uint _value\r\n    ) internal  {\r\n        if ((checkpoints.length == 0)\r\n        || (checkpoints[checkpoints.length -1].fromBlock < block.number)) {\r\n               Checkpoint storage newCheckPoint = checkpoints[ checkpoints.length++ ];\r\n               newCheckPoint.fromBlock =  uint256(block.number);\r\n               newCheckPoint.value = uint256(_value);\r\n           } else {\r\n               Checkpoint storage oldCheckPoint = checkpoints[checkpoints.length-1];\r\n               oldCheckPoint.value = uint256(_value);\r\n           }\r\n    }\r\n\r\n    /// @dev Internal function to determine if an address is a contract\r\n    /// @param _addr The address being queried\r\n    /// @return True if `_addr` is a contract\r\n    function isContract(address _addr) view internal returns(bool) {\r\n        uint size;\r\n        if (_addr == address(0)) return false;\r\n        assembly {\r\n            size := extcodesize(_addr)\r\n        }\r\n        return size>0;\r\n    }\r\n\r\n    /// @dev Helper function to return a min betwen the two uints\r\n    function min(uint a, uint b) pure internal returns (uint) {\r\n        return a < b ? a : b;\r\n    }\r\n\r\n    /// @notice The fallback function: If the contract's controller has not been\r\n    ///  set to 0, then the `proxyPayment` method is called which relays the\r\n    ///  ether and creates tokens as described in the token controller contract\r\n    function () external payable {\r\n        require(isContract(controller));\r\n        require(TokenController(controller).proxyPayment.value(msg.value)(msg.sender));\r\n    }\r\n\r\n\r\n////////////////\r\n// Events\r\n////////////////\r\n    event ClaimedTokens(address indexed _token, address indexed _controller, uint _amount);\r\n    event Transfer(address indexed _from, address indexed _to, uint256 _amount);\r\n    event NewCloneToken(address indexed _cloneToken, uint _snapshotBlock);\r\n    event Approval(\r\n        address indexed _owner,\r\n        address indexed _spender,\r\n        uint256 _amount\r\n        );\r\n\r\n}\r\n\r\n\r\n////////////////\r\n// MiniMeTokenFactory\r\n////////////////\r\n\r\n/// @dev This contract is used to generate clone contracts from a contract.\r\n///  In solidity this is the way to create a contract from a contract of the\r\n///  same class\r\ncontract MiniMeTokenFactory {\r\n\r\n    /// @notice Update the DApp by creating a new token with new functionalities\r\n    ///  the msg.sender becomes the controller of this clone token\r\n    /// @param _parentToken Address of the token being cloned\r\n    /// @param _snapshotBlock Block of the parent token that will\r\n    ///  determine the initial distribution of the clone token\r\n    /// @param _tokenName Name of the new token\r\n    /// @param _decimalUnits Number of decimals of the new token\r\n    /// @param _tokenSymbol Token Symbol for the new token\r\n    /// @param _transfersEnabled If true, tokens will be able to be transferred\r\n    /// @return The address of the new token contract\r\n    function createCloneToken(\r\n        address payable _parentToken,\r\n        uint _snapshotBlock,\r\n        string memory _tokenName,\r\n        uint8 _decimalUnits,\r\n        string memory _tokenSymbol,\r\n        bool _transfersEnabled\r\n    ) public returns (MiniMeToken) {\r\n        MiniMeToken newToken = new MiniMeToken(\r\n            address(this),\r\n            _parentToken,\r\n            _snapshotBlock,\r\n            _tokenName,\r\n            _decimalUnits,\r\n            _tokenSymbol,\r\n            _transfersEnabled\r\n            );\r\n\r\n        newToken.changeController(msg.sender);\r\n        return newToken;\r\n    }\r\n  }\r\n\r\n\r\ncontract LEO is MiniMeToken {\r\n\r\n  constructor(\r\n    address _tokenFactory,\r\n    address initialOwner\r\n  ) public MiniMeToken(\r\n    _tokenFactory,\r\n    address(0),             // no parent token\r\n    0,                      // no snapshot block number from parent\r\n    \"Bitfinex LEO Token\",   // Token name\r\n    18,                     // Decimals\r\n    \"LEO\",                  // Symbol\r\n    true                    // Enable transfers\r\n    ) {\r\n        generateTokens(initialOwner, 660000000000000000000000000);\r\n    }\r\n\r\n}\r\n\r\n\r\ncontract LEOController is TokenController, Ownable {\r\n\r\n    LEO public tokenContract;   // The new token for this Campaign\r\n\r\n    /// @param _tokenAddress Address of the token contract this contract controls\r\n\r\n    constructor(\r\n        address payable _tokenAddress\r\n    ) public {\r\n        tokenContract = LEO(_tokenAddress);         // The Deployed Token Contract\r\n    }\r\n\r\n\r\n/////////////////\r\n// TokenController interface\r\n/////////////////\r\n\r\n    /// @notice Notifies the controller about a transfer.\r\n    /// Transfers can only happen to whitelisted addresses\r\n    /// @param _from The origin of the transfer\r\n    /// @param _to The destination of the transfer\r\n    /// @param _amount The amount of the transfer\r\n    /// @return False if the controller does not authorize the transfer\r\n    function onTransfer(address _from, address _to, uint _amount) public returns(bool) {\r\n        return true;\r\n    }\r\n\r\n    /// @notice Notifies the controller about an approval, for this Campaign all\r\n    ///  approvals are allowed by default and no extra notifications are needed\r\n    /// @param _owner The address that calls `approve()`\r\n    /// @param _spender The spender in the `approve()` call\r\n    /// @param _amount The amount in the `approve()` call\r\n    /// @return False if the controller does not authorize the approval\r\n    function onApprove(address _owner, address _spender, uint _amount) public\r\n        returns(bool)\r\n    {\r\n        return true;\r\n    }\r\n\r\n    function proxyPayment(address _owner) public payable returns(bool allowed) {\r\n        allowed = false;\r\n    }\r\n\r\n    /// @notice `onlyOwner` can upgrade the controller contract\r\n    /// @param _newControllerAddress The address that will have the token control logic\r\n    function upgradeController(address _newControllerAddress) public onlyOwner {\r\n        tokenContract.changeController(_newControllerAddress);\r\n        emit UpgradedController(_newControllerAddress);\r\n    }\r\n\r\n    function burnTokens(uint _amount) public onlyOwner returns (bool) {\r\n        tokenContract.destroyTokens(owner, _amount);\r\n    }\r\n\r\n    function issueTokens(uint _amount) public onlyOwner returns (bool) {\r\n        tokenContract.generateTokens(owner, _amount);\r\n    }\r\n\r\n\r\n//////////\r\n// Safety Methods\r\n//////////\r\n\r\n    /// @notice This method can be used by the owner to extract mistakenly\r\n    ///  sent tokens to this contract.\r\n    /// @param _token The address of the token contract that you want to recover\r\n    function claimLostTokens(address payable _token) public onlyOwner {\r\n\r\n        LEO token = LEO(_token);\r\n        uint balance = token.balanceOf(address(this));\r\n        token.transfer(owner, balance);\r\n        emit ClaimedTokens(_token, owner, balance);\r\n    }\r\n\r\n////////////////\r\n// Events\r\n////////////////\r\n    event ClaimedTokens(address indexed _token, address indexed _controller, uint _amount);\r\n\r\n    event UpgradedController (address newAddress);\r\n\r\n}","deployed_bytecode":"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