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rln-contract/contracts/SntContract.sol
Keshav Gupta f0d55cf797
SNTcontract compiler version mismatch. 
OpenZeppelin install.
2022-08-09 14:43:53 +02:00

1847 lines
70 KiB
Solidity
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// /**
// *Submitted for verification at Etherscan.io on 2017-06-19
// */
// pragma solidity ^0.4.11;
// /// @dev `Owned` is a base level contract that assigns an `owner` that can be
// /// later changed
// contract Owned {
// /// @dev `owner` is the only address that can call a function with this
// /// modifier
// modifier onlyOwner() {
// require(msg.sender == owner);
// _;
// }
// address public owner;
// /// @notice The Constructor assigns the message sender to be `owner`
// function Owned() {
// owner = msg.sender;
// }
// address public newOwner;
// /// @notice `owner` can step down and assign some other address to this role
// /// @param _newOwner The address of the new owner. 0x0 can be used to create
// /// an unowned neutral vault, however that cannot be undone
// function changeOwner(address _newOwner) onlyOwner {
// newOwner = _newOwner;
// }
// function acceptOwnership() {
// if (msg.sender == newOwner) {
// owner = newOwner;
// }
// }
// }
// // Abstract contract for the full ERC 20 Token standard
// // https://github.com/ethereum/EIPs/issues/20
// contract ERC20Token {
// /* This is a slight change to the ERC20 base standard.
// function totalSupply() constant returns (uint256 supply);
// is replaced with:
// uint256 public totalSupply;
// This automatically creates a getter function for the totalSupply.
// This is moved to the base contract since public getter functions are not
// currently recognised as an implementation of the matching abstract
// function by the compiler.
// */
// /// total amount of tokens
// uint256 public totalSupply;
// /// @param _owner The address from which the balance will be retrieved
// /// @return The balance
// function balanceOf(address _owner) constant returns (uint256 balance);
// /// @notice send `_value` token to `_to` from `msg.sender`
// /// @param _to The address of the recipient
// /// @param _value The amount of token to be transferred
// /// @return Whether the transfer was successful or not
// function transfer(address _to, uint256 _value) returns (bool success);
// /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
// /// @param _from The address of the sender
// /// @param _to The address of the recipient
// /// @param _value The amount of token to be transferred
// /// @return Whether the transfer was successful or not
// function transferFrom(address _from, address _to, uint256 _value) returns (bool success);
// /// @notice `msg.sender` approves `_spender` to spend `_value` tokens
// /// @param _spender The address of the account able to transfer the tokens
// /// @param _value The amount of tokens to be approved for transfer
// /// @return Whether the approval was successful or not
// function approve(address _spender, uint256 _value) returns (bool success);
// /// @param _owner The address of the account owning tokens
// /// @param _spender The address of the account able to transfer the tokens
// /// @return Amount of remaining tokens allowed to spent
// function allowance(address _owner, address _spender) constant returns (uint256 remaining);
// event Transfer(address indexed _from, address indexed _to, uint256 _value);
// event Approval(address indexed _owner, address indexed _spender, uint256 _value);
// }
// /**
// * Math operations with safety checks
// */
// library SafeMath {
// function mul(uint a, uint b) internal returns (uint) {
// uint c = a * b;
// assert(a == 0 || c / a == b);
// return c;
// }
// function div(uint a, uint b) internal returns (uint) {
// // assert(b > 0); // Solidity automatically throws when dividing by 0
// uint c = a / b;
// // assert(a == b * c + a % b); // There is no case in which this doesn't hold
// return c;
// }
// function sub(uint a, uint b) internal returns (uint) {
// assert(b <= a);
// return a - b;
// }
// function add(uint a, uint b) internal returns (uint) {
// uint c = a + b;
// assert(c >= a);
// return c;
// }
// function max64(uint64 a, uint64 b) internal constant returns (uint64) {
// return a >= b ? a : b;
// }
// function min64(uint64 a, uint64 b) internal constant returns (uint64) {
// return a < b ? a : b;
// }
// function max256(uint256 a, uint256 b) internal constant returns (uint256) {
// return a >= b ? a : b;
// }
// function min256(uint256 a, uint256 b) internal constant returns (uint256) {
// return a < b ? a : b;
// }
// }
// /*
// Copyright 2017, Jordi Baylina
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// */
// /// @title DynamicCeiling Contract
// /// @author Jordi Baylina
// /// @dev This contract calculates the ceiling from a series of curves.
// /// These curves are committed first and revealed later.
// /// All the curves must be in increasing order and the last curve is marked
// /// as the last one.
// /// This contract allows to hide and reveal the ceiling at will of the owner.
// contract DynamicCeiling is Owned {
// using SafeMath for uint256;
// struct Curve {
// bytes32 hash;
// // Absolute limit for this curve
// uint256 limit;
// // The funds remaining to be collected are divided by `slopeFactor` smooth ceiling
// // with a long tail where big and small buyers can take part.
// uint256 slopeFactor;
// // This keeps the curve flat at this number, until funds to be collected is less than this
// uint256 collectMinimum;
// }
// address public contribution;
// Curve[] public curves;
// uint256 public currentIndex;
// uint256 public revealedCurves;
// bool public allRevealed;
// /// @dev `contribution` is the only address that can call a function with this
// /// modifier
// modifier onlyContribution {
// require(msg.sender == contribution);
// _;
// }
// function DynamicCeiling(address _owner, address _contribution) {
// owner = _owner;
// contribution = _contribution;
// }
// /// @notice This should be called by the creator of the contract to commit
// /// all the curves.
// /// @param _curveHashes Array of hashes of each curve. Each hash is calculated
// /// by the `calculateHash` method. More hashes than actual curves can be
// /// committed in order to hide also the number of curves.
// /// The remaining hashes can be just random numbers.
// function setHiddenCurves(bytes32[] _curveHashes) public onlyOwner {
// require(curves.length == 0);
// curves.length = _curveHashes.length;
// for (uint256 i = 0; i < _curveHashes.length; i = i.add(1)) {
// curves[i].hash = _curveHashes[i];
// }
// }
// /// @notice Anybody can reveal the next curve if he knows it.
// /// @param _limit Ceiling cap.
// /// (must be greater or equal to the previous one).
// /// @param _last `true` if it's the last curve.
// /// @param _salt Random number used to commit the curve
// function revealCurve(uint256 _limit, uint256 _slopeFactor, uint256 _collectMinimum,
// bool _last, bytes32 _salt) public {
// require(!allRevealed);
// require(curves[revealedCurves].hash == calculateHash(_limit, _slopeFactor, _collectMinimum,
// _last, _salt));
// require(_limit != 0 && _slopeFactor != 0 && _collectMinimum != 0);
// if (revealedCurves > 0) {
// require(_limit >= curves[revealedCurves.sub(1)].limit);
// }
// curves[revealedCurves].limit = _limit;
// curves[revealedCurves].slopeFactor = _slopeFactor;
// curves[revealedCurves].collectMinimum = _collectMinimum;
// revealedCurves = revealedCurves.add(1);
// if (_last) allRevealed = true;
// }
// /// @notice Reveal multiple curves at once
// function revealMulti(uint256[] _limits, uint256[] _slopeFactors, uint256[] _collectMinimums,
// bool[] _lasts, bytes32[] _salts) public {
// // Do not allow none and needs to be same length for all parameters
// require(_limits.length != 0 &&
// _limits.length == _slopeFactors.length &&
// _limits.length == _collectMinimums.length &&
// _limits.length == _lasts.length &&
// _limits.length == _salts.length);
// for (uint256 i = 0; i < _limits.length; i = i.add(1)) {
// revealCurve(_limits[i], _slopeFactors[i], _collectMinimums[i],
// _lasts[i], _salts[i]);
// }
// }
// /// @notice Move to curve, used as a failsafe
// function moveTo(uint256 _index) public onlyOwner {
// require(_index < revealedCurves && // No more curves
// _index == currentIndex.add(1)); // Only move one index at a time
// currentIndex = _index;
// }
// /// @return Return the funds to collect for the current point on the curve
// /// (or 0 if no curves revealed yet)
// function toCollect(uint256 collected) public onlyContribution returns (uint256) {
// if (revealedCurves == 0) return 0;
// // Move to the next curve
// if (collected >= curves[currentIndex].limit) { // Catches `limit == 0`
// uint256 nextIndex = currentIndex.add(1);
// if (nextIndex >= revealedCurves) return 0; // No more curves
// currentIndex = nextIndex;
// if (collected >= curves[currentIndex].limit) return 0; // Catches `limit == 0`
// }
// // Everything left to collect from this limit
// uint256 difference = curves[currentIndex].limit.sub(collected);
// // Current point on the curve
// uint256 collect = difference.div(curves[currentIndex].slopeFactor);
// // Prevents paying too much fees vs to be collected; breaks long tail
// if (collect <= curves[currentIndex].collectMinimum) {
// if (difference > curves[currentIndex].collectMinimum) {
// return curves[currentIndex].collectMinimum;
// } else {
// return difference;
// }
// } else {
// return collect;
// }
// }
// /// @notice Calculates the hash of a curve.
// /// @param _limit Ceiling cap.
// /// @param _last `true` if it's the last curve.
// /// @param _salt Random number that will be needed to reveal this curve.
// /// @return The calculated hash of this curve to be used in the `setHiddenCurves` method
// function calculateHash(uint256 _limit, uint256 _slopeFactor, uint256 _collectMinimum,
// bool _last, bytes32 _salt) public constant returns (bytes32) {
// return keccak256(_limit, _slopeFactor, _collectMinimum, _last, _salt);
// }
// /// @return Return the total number of curves committed
// /// (can be larger than the number of actual curves on the curve to hide
// /// the real number of curves)
// function nCurves() public constant returns (uint256) {
// return curves.length;
// }
// }
// /*
// Copyright 2016, Jordi Baylina
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// */
// /// @title MiniMeToken Contract
// /// @author Jordi Baylina
// /// @dev This token contract's goal is to make it easy for anyone to clone this
// /// token using the token distribution at a given block, this will allow DAO's
// /// and DApps to upgrade their features in a decentralized manner without
// /// affecting the original token
// /// @dev It is ERC20 compliant, but still needs to under go further testing.
// /// @dev The token controller contract must implement these functions
// contract TokenController {
// /// @notice Called when `_owner` sends ether to the MiniMe Token contract
// /// @param _owner The address that sent the ether to create tokens
// /// @return True if the ether is accepted, false if it throws
// function proxyPayment(address _owner) payable returns(bool);
// /// @notice Notifies the controller about a token transfer allowing the
// /// controller to react if desired
// /// @param _from The origin of the transfer
// /// @param _to The destination of the transfer
// /// @param _amount The amount of the transfer
// /// @return False if the controller does not authorize the transfer
// function onTransfer(address _from, address _to, uint _amount) returns(bool);
// /// @notice Notifies the controller about an approval allowing the
// /// controller to react if desired
// /// @param _owner The address that calls `approve()`
// /// @param _spender The spender in the `approve()` call
// /// @param _amount The amount in the `approve()` call
// /// @return False if the controller does not authorize the approval
// function onApprove(address _owner, address _spender, uint _amount)
// returns(bool);
// }
// contract Controlled {
// /// @notice The address of the controller is the only address that can call
// /// a function with this modifier
// modifier onlyController { if (msg.sender != controller) throw; _; }
// address public controller;
// function Controlled() { controller = msg.sender;}
// /// @notice Changes the controller of the contract
// /// @param _newController The new controller of the contract
// function changeController(address _newController) onlyController {
// controller = _newController;
// }
// }
// contract ApproveAndCallFallBack {
// function receiveApproval(address from, uint256 _amount, address _token, bytes _data);
// }
// /// @dev The actual token contract, the default controller is the msg.sender
// /// that deploys the contract, so usually this token will be deployed by a
// /// token controller contract, which Giveth will call a "Campaign"
// contract MiniMeToken is Controlled {
// string public name; //The Token's name: e.g. DigixDAO Tokens
// uint8 public decimals; //Number of decimals of the smallest unit
// string public symbol; //An identifier: e.g. REP
// string public version = 'MMT_0.1'; //An arbitrary versioning scheme
// /// @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 tokens at a specific block number
// uint128 value;
// }
// // `parentToken` is the Token address that was cloned to produce this token;
// // it will be 0x0 for a token that was not cloned
// MiniMeToken public parentToken;
// // `parentSnapShotBlock` is the block number from the Parent Token that was
// // used to determine the initial distribution of the Clone Token
// uint public parentSnapShotBlock;
// // `creationBlock` is the block number that the Clone Token was created
// uint public creationBlock;
// // `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;
// // `allowed` tracks any extra transfer rights as in all ERC20 tokens
// mapping (address => mapping (address => uint256)) allowed;
// // Tracks the history of the `totalSupply` of the token
// Checkpoint[] totalSupplyHistory;
// // Flag that determines if the token is transferable or not.
// bool public transfersEnabled;
// // The factory used to create new clone tokens
// MiniMeTokenFactory public tokenFactory;
// ////////////////
// // Constructor
// ////////////////
// /// @notice Constructor to create a MiniMeToken
// /// @param _tokenFactory The address of the MiniMeTokenFactory contract that
// /// will create the Clone token contracts, the token factory needs to be
// /// deployed first
// /// @param _parentToken Address of the parent token, set to 0x0 if it is a
// /// new token
// /// @param _parentSnapShotBlock Block of the parent token that will
// /// determine the initial distribution of the clone token, set to 0 if it
// /// is a new token
// /// @param _tokenName Name of the new token
// /// @param _decimalUnits Number of decimals of the new token
// /// @param _tokenSymbol Token Symbol for the new token
// /// @param _transfersEnabled If true, tokens will be able to be transferred
// function MiniMeToken(
// address _tokenFactory,
// address _parentToken,
// uint _parentSnapShotBlock,
// string _tokenName,
// uint8 _decimalUnits,
// string _tokenSymbol,
// bool _transfersEnabled
// ) {
// tokenFactory = MiniMeTokenFactory(_tokenFactory);
// name = _tokenName; // Set the name
// decimals = _decimalUnits; // Set the decimals
// symbol = _tokenSymbol; // Set the symbol
// parentToken = MiniMeToken(_parentToken);
// parentSnapShotBlock = _parentSnapShotBlock;
// transfersEnabled = _transfersEnabled;
// creationBlock = getBlockNumber();
// }
// ///////////////////
// // ERC20 Methods
// ///////////////////
// /// @notice Send `_amount` tokens to `_to` from `msg.sender`
// /// @param _to The address of the recipient
// /// @param _amount The amount of tokens to be transferred
// /// @return Whether the transfer was successful or not
// function transfer(address _to, uint256 _amount) returns (bool success) {
// if (!transfersEnabled) throw;
// return doTransfer(msg.sender, _to, _amount);
// }
// /// @notice Send `_amount` tokens to `_to` from `_from` on the condition it
// /// is approved by `_from`
// /// @param _from The address holding the tokens being transferred
// /// @param _to The address of the recipient
// /// @param _amount The amount of tokens to be transferred
// /// @return True if the transfer was successful
// function transferFrom(address _from, address _to, uint256 _amount
// ) returns (bool success) {
// // The controller of this contract can move tokens around at will,
// // this is important to recognize! Confirm that you trust the
// // controller of this contract, which in most situations should be
// // another open source smart contract or 0x0
// if (msg.sender != controller) {
// if (!transfersEnabled) throw;
// // The standard ERC 20 transferFrom functionality
// if (allowed[_from][msg.sender] < _amount) return false;
// allowed[_from][msg.sender] -= _amount;
// }
// return doTransfer(_from, _to, _amount);
// }
// /// @dev This is the actual transfer function in the token contract, it can
// /// only be called by other functions in this contract.
// /// @param _from The address holding the tokens being transferred
// /// @param _to The address of the recipient
// /// @param _amount The amount of tokens to be transferred
// /// @return True if the transfer was successful
// function doTransfer(address _from, address _to, uint _amount
// ) internal returns(bool) {
// if (_amount == 0) {
// return true;
// }
// if (parentSnapShotBlock >= getBlockNumber()) throw;
// // Do not allow transfer to 0x0 or the token contract itself
// if ((_to == 0) || (_to == address(this))) throw;
// // If the amount being transfered is more than the balance of the
// // account the transfer returns false
// var previousBalanceFrom = balanceOfAt(_from, getBlockNumber());
// if (previousBalanceFrom < _amount) {
// return false;
// }
// // Alerts the token controller of the transfer
// if (isContract(controller)) {
// if (!TokenController(controller).onTransfer(_from, _to, _amount))
// throw;
// }
// // First update the balance array with the new value for the address
// // sending the tokens
// updateValueAtNow(balances[_from], previousBalanceFrom - _amount);
// // Then update the balance array with the new value for the address
// // receiving the tokens
// var previousBalanceTo = balanceOfAt(_to, getBlockNumber());
// if (previousBalanceTo + _amount < previousBalanceTo) throw; // Check for overflow
// updateValueAtNow(balances[_to], previousBalanceTo + _amount);
// // An event to make the transfer easy to find on the blockchain
// Transfer(_from, _to, _amount);
// return true;
// }
// /// @param _owner The address that's balance is being requested
// /// @return The balance of `_owner` at the current block
// function balanceOf(address _owner) constant returns (uint256 balance) {
// return balanceOfAt(_owner, getBlockNumber());
// }
// /// @notice `msg.sender` approves `_spender` to spend `_amount` tokens on
// /// its behalf. This is a modified version of the ERC20 approve function
// /// to be a little bit safer
// /// @param _spender The address of the account able to transfer the tokens
// /// @param _amount The amount of tokens to be approved for transfer
// /// @return True if the approval was successful
// function approve(address _spender, uint256 _amount) returns (bool success) {
// if (!transfersEnabled) throw;
// // To change the approve amount you first have to reduce the addresses`
// // allowance to zero by calling `approve(_spender,0)` if it is not
// // already 0 to mitigate the race condition described here:
// // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
// if ((_amount!=0) && (allowed[msg.sender][_spender] !=0)) throw;
// // Alerts the token controller of the approve function call
// if (isContract(controller)) {
// if (!TokenController(controller).onApprove(msg.sender, _spender, _amount))
// throw;
// }
// allowed[msg.sender][_spender] = _amount;
// Approval(msg.sender, _spender, _amount);
// return true;
// }
// /// @dev This function makes it easy to read the `allowed[]` map
// /// @param _owner The address of the account that owns the token
// /// @param _spender The address of the account able to transfer the tokens
// /// @return Amount of remaining tokens of _owner that _spender is allowed
// /// to spend
// function allowance(address _owner, address _spender
// ) constant returns (uint256 remaining) {
// return allowed[_owner][_spender];
// }
// /// @notice `msg.sender` approves `_spender` to send `_amount` tokens on
// /// its behalf, and then a function is triggered in the contract that is
// /// being approved, `_spender`. This allows users to use their tokens to
// /// interact with contracts in one function call instead of two
// /// @param _spender The address of the contract able to transfer the tokens
// /// @param _amount The amount of tokens to be approved for transfer
// /// @return True if the function call was successful
// function approveAndCall(address _spender, uint256 _amount, bytes _extraData
// ) returns (bool success) {
// if (!approve(_spender, _amount)) throw;
// ApproveAndCallFallBack(_spender).receiveApproval(
// msg.sender,
// _amount,
// this,
// _extraData
// );
// return true;
// }
// /// @dev This function makes it easy to get the total number of tokens
// /// @return The total number of tokens
// function totalSupply() constant returns (uint) {
// return totalSupplyAt(getBlockNumber());
// }
// ////////////////
// // Query balance and totalSupply in History
// ////////////////
// /// @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, uint _blockNumber) constant
// returns (uint) {
// // These next few lines are used when the balance of the token is
// // requested before a check point was ever created for this token, it
// // requires that the `parentToken.balanceOfAt` be queried at the
// // genesis block for that token as this contains initial balance of
// // this token
// if ((balances[_owner].length == 0)
// || (balances[_owner][0].fromBlock > _blockNumber)) {
// if (address(parentToken) != 0) {
// return parentToken.balanceOfAt(_owner, min(_blockNumber, parentSnapShotBlock));
// } else {
// // Has no parent
// return 0;
// }
// // This will return the expected balance during normal situations
// } else {
// return getValueAt(balances[_owner], _blockNumber);
// }
// }
// /// @notice Total amount of tokens at a specific `_blockNumber`.
// /// @param _blockNumber The block number when the totalSupply is queried
// /// @return The total amount of tokens at `_blockNumber`
// function totalSupplyAt(uint _blockNumber) constant returns(uint) {
// // These next few lines are used when the totalSupply of the token is
// // requested before a check point was ever created for this token, it
// // requires that the `parentToken.totalSupplyAt` be queried at the
// // genesis block for this token as that contains totalSupply of this
// // token at this block number.
// if ((totalSupplyHistory.length == 0)
// || (totalSupplyHistory[0].fromBlock > _blockNumber)) {
// if (address(parentToken) != 0) {
// return parentToken.totalSupplyAt(min(_blockNumber, parentSnapShotBlock));
// } else {
// return 0;
// }
// // This will return the expected totalSupply during normal situations
// } else {
// return getValueAt(totalSupplyHistory, _blockNumber);
// }
// }
// ////////////////
// // Clone Token Method
// ////////////////
// /// @notice Creates a new clone token with the initial distribution being
// /// this token at `_snapshotBlock`
// /// @param _cloneTokenName Name of the clone token
// /// @param _cloneDecimalUnits Number of decimals of the smallest unit
// /// @param _cloneTokenSymbol Symbol of the clone token
// /// @param _snapshotBlock Block when the distribution of the parent token is
// /// copied to set the initial distribution of the new clone token;
// /// if the block is zero than the actual block, the current block is used
// /// @param _transfersEnabled True if transfers are allowed in the clone
// /// @return The address of the new MiniMeToken Contract
// function createCloneToken(
// string _cloneTokenName,
// uint8 _cloneDecimalUnits,
// string _cloneTokenSymbol,
// uint _snapshotBlock,
// bool _transfersEnabled
// ) returns(address) {
// if (_snapshotBlock == 0) _snapshotBlock = getBlockNumber();
// MiniMeToken cloneToken = tokenFactory.createCloneToken(
// this,
// _snapshotBlock,
// _cloneTokenName,
// _cloneDecimalUnits,
// _cloneTokenSymbol,
// _transfersEnabled
// );
// cloneToken.changeController(msg.sender);
// // An event to make the token easy to find on the blockchain
// NewCloneToken(address(cloneToken), _snapshotBlock);
// return address(cloneToken);
// }
// ////////////////
// // Generate and destroy tokens
// ////////////////
// /// @notice Generates `_amount` tokens that are assigned to `_owner`
// /// @param _owner The address that will be assigned the new tokens
// /// @param _amount The quantity of tokens generated
// /// @return True if the tokens are generated correctly
// function generateTokens(address _owner, uint _amount
// ) onlyController returns (bool) {
// uint curTotalSupply = getValueAt(totalSupplyHistory, getBlockNumber());
// if (curTotalSupply + _amount < curTotalSupply) throw; // Check for overflow
// updateValueAtNow(totalSupplyHistory, curTotalSupply + _amount);
// var previousBalanceTo = balanceOf(_owner);
// if (previousBalanceTo + _amount < previousBalanceTo) throw; // Check for overflow
// updateValueAtNow(balances[_owner], previousBalanceTo + _amount);
// Transfer(0, _owner, _amount);
// return true;
// }
// /// @notice Burns `_amount` tokens from `_owner`
// /// @param _owner The address that will lose the tokens
// /// @param _amount The quantity of tokens to burn
// /// @return True if the tokens are burned correctly
// function destroyTokens(address _owner, uint _amount
// ) onlyController returns (bool) {
// uint curTotalSupply = getValueAt(totalSupplyHistory, getBlockNumber());
// if (curTotalSupply < _amount) throw;
// updateValueAtNow(totalSupplyHistory, curTotalSupply - _amount);
// var previousBalanceFrom = balanceOf(_owner);
// if (previousBalanceFrom < _amount) throw;
// updateValueAtNow(balances[_owner], previousBalanceFrom - _amount);
// Transfer(_owner, 0, _amount);
// return true;
// }
// ////////////////
// // Enable tokens transfers
// ////////////////
// /// @notice Enables token holders to transfer their tokens freely if true
// /// @param _transfersEnabled True if transfers are allowed in the clone
// function enableTransfers(bool _transfersEnabled) onlyController {
// transfersEnabled = _transfersEnabled;
// }
// ////////////////
// // Internal helper functions to query and set a value in a snapshot array
// ////////////////
// /// @dev `getValueAt` retrieves the number of tokens 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 tokens being queried
// function getValueAt(Checkpoint[] storage checkpoints, uint _block
// ) constant internal returns (uint) {
// 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
// uint min = 0;
// uint max = checkpoints.length-1;
// while (max > min) {
// uint 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 tokens
// function updateValueAtNow(Checkpoint[] storage checkpoints, uint _value
// ) internal {
// if ((checkpoints.length == 0)
// || (checkpoints[checkpoints.length -1].fromBlock < getBlockNumber())) {
// Checkpoint newCheckPoint = checkpoints[ checkpoints.length++ ];
// newCheckPoint.fromBlock = uint128(getBlockNumber());
// newCheckPoint.value = uint128(_value);
// } else {
// Checkpoint oldCheckPoint = checkpoints[checkpoints.length-1];
// oldCheckPoint.value = uint128(_value);
// }
// }
// /// @dev Internal function to determine if an address is a contract
// /// @param _addr The address being queried
// /// @return True if `_addr` is a contract
// function isContract(address _addr) constant internal returns(bool) {
// uint size;
// if (_addr == 0) return false;
// assembly {
// size := extcodesize(_addr)
// }
// return size>0;
// }
// /// @dev Helper function to return a min betwen the two uints
// function min(uint a, uint b) internal returns (uint) {
// return a < b ? a : b;
// }
// /// @notice The fallback function: If the contract's controller has not been
// /// set to 0, then the `proxyPayment` method is called which relays the
// /// ether and creates tokens as described in the token controller contract
// function () payable {
// if (isContract(controller)) {
// if (! TokenController(controller).proxyPayment.value(msg.value)(msg.sender))
// throw;
// } else {
// throw;
// }
// }
// //////////
// // Testing specific methods
// //////////
// /// @notice This function is overridden by the test Mocks.
// function getBlockNumber() internal constant returns (uint256) {
// return block.number;
// }
// //////////
// // Safety Methods
// //////////
// /// @notice This method can be used by the controller to extract mistakenly
// /// sent tokens to this contract.
// /// @param _token The address of the token contract that you want to recover
// /// set to 0 in case you want to extract ether.
// function claimTokens(address _token) onlyController {
// if (_token == 0x0) {
// controller.transfer(this.balance);
// return;
// }
// ERC20Token token = ERC20Token(_token);
// uint balance = token.balanceOf(this);
// token.transfer(controller, balance);
// ClaimedTokens(_token, controller, balance);
// }
// ////////////////
// // Events
// ////////////////
// event ClaimedTokens(address indexed _token, address indexed _controller, uint _amount);
// event Transfer(address indexed _from, address indexed _to, uint256 _amount);
// event NewCloneToken(address indexed _cloneToken, uint _snapshotBlock);
// event Approval(
// address indexed _owner,
// address indexed _spender,
// uint256 _amount
// );
// }
// ////////////////
// // MiniMeTokenFactory
// ////////////////
// /// @dev This contract is used to generate clone contracts from a contract.
// /// In solidity this is the way to create a contract from a contract of the
// /// same class
// contract MiniMeTokenFactory {
// /// @notice Update the DApp by creating a new token with new functionalities
// /// the msg.sender becomes the controller of this clone token
// /// @param _parentToken Address of the token being cloned
// /// @param _snapshotBlock Block of the parent token that will
// /// determine the initial distribution of the clone token
// /// @param _tokenName Name of the new token
// /// @param _decimalUnits Number of decimals of the new token
// /// @param _tokenSymbol Token Symbol for the new token
// /// @param _transfersEnabled If true, tokens will be able to be transferred
// /// @return The address of the new token contract
// function createCloneToken(
// address _parentToken,
// uint _snapshotBlock,
// string _tokenName,
// uint8 _decimalUnits,
// string _tokenSymbol,
// bool _transfersEnabled
// ) returns (MiniMeToken) {
// MiniMeToken newToken = new MiniMeToken(
// this,
// _parentToken,
// _snapshotBlock,
// _tokenName,
// _decimalUnits,
// _tokenSymbol,
// _transfersEnabled
// );
// newToken.changeController(msg.sender);
// return newToken;
// }
// }
// /*
// Copyright 2017, Jarrad Hope (Status Research & Development GmbH)
// */
// contract SNT is MiniMeToken {
// // @dev SNT constructor just parametrizes the MiniMeIrrevocableVestedToken constructor
// function SNT(address _tokenFactory)
// MiniMeToken(
// _tokenFactory,
// 0x0, // no parent token
// 0, // no snapshot block number from parent
// "Status Network Token", // Token name
// 18, // Decimals
// "SNT", // Symbol
// true // Enable transfers
// ) {}
// }
// /*
// Copyright 2017, Jordi Baylina
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// */
// /// @title StatusContribution Contract
// /// @author Jordi Baylina
// /// @dev This contract will be the SNT controller during the contribution period.
// /// This contract will determine the rules during this period.
// /// Final users will generally not interact directly with this contract. ETH will
// /// be sent to the SNT token contract. The ETH is sent to this contract and from here,
// /// ETH is sent to the contribution walled and SNTs are mined according to the defined
// /// rules.
// contract StatusContribution is Owned, TokenController {
// using SafeMath for uint256;
// uint256 constant public failSafeLimit = 300000 ether;
// uint256 constant public maxGuaranteedLimit = 30000 ether;
// uint256 constant public exchangeRate = 10000;
// uint256 constant public maxGasPrice = 50000000000;
// uint256 constant public maxCallFrequency = 100;
// MiniMeToken public SGT;
// MiniMeToken public SNT;
// uint256 public startBlock;
// uint256 public endBlock;
// address public destEthDevs;
// address public destTokensDevs;
// address public destTokensReserve;
// uint256 public maxSGTSupply;
// address public destTokensSgt;
// DynamicCeiling public dynamicCeiling;
// address public sntController;
// mapping (address => uint256) public guaranteedBuyersLimit;
// mapping (address => uint256) public guaranteedBuyersBought;
// uint256 public totalGuaranteedCollected;
// uint256 public totalNormalCollected;
// uint256 public finalizedBlock;
// uint256 public finalizedTime;
// mapping (address => uint256) public lastCallBlock;
// bool public paused;
// modifier initialized() {
// require(address(SNT) != 0x0);
// _;
// }
// modifier contributionOpen() {
// require(getBlockNumber() >= startBlock &&
// getBlockNumber() <= endBlock &&
// finalizedBlock == 0 &&
// address(SNT) != 0x0);
// _;
// }
// modifier notPaused() {
// require(!paused);
// _;
// }
// function StatusContribution() {
// paused = false;
// }
// /// @notice This method should be called by the owner before the contribution
// /// period starts This initializes most of the parameters
// /// @param _snt Address of the SNT token contract
// /// @param _sntController Token controller for the SNT that will be transferred after
// /// the contribution finalizes.
// /// @param _startBlock Block when the contribution period starts
// /// @param _endBlock The last block that the contribution period is active
// /// @param _dynamicCeiling Address of the contract that controls the ceiling
// /// @param _destEthDevs Destination address where the contribution ether is sent
// /// @param _destTokensReserve Address where the tokens for the reserve are sent
// /// @param _destTokensSgt Address of the exchanger SGT-SNT where the SNT are sent
// /// to be distributed to the SGT holders.
// /// @param _destTokensDevs Address where the tokens for the dev are sent
// /// @param _sgt Address of the SGT token contract
// /// @param _maxSGTSupply Quantity of SGT tokens that would represent 10% of status.
// function initialize(
// address _snt,
// address _sntController,
// uint256 _startBlock,
// uint256 _endBlock,
// address _dynamicCeiling,
// address _destEthDevs,
// address _destTokensReserve,
// address _destTokensSgt,
// address _destTokensDevs,
// address _sgt,
// uint256 _maxSGTSupply
// ) public onlyOwner {
// // Initialize only once
// require(address(SNT) == 0x0);
// SNT = MiniMeToken(_snt);
// require(SNT.totalSupply() == 0);
// require(SNT.controller() == address(this));
// require(SNT.decimals() == 18); // Same amount of decimals as ETH
// require(_sntController != 0x0);
// sntController = _sntController;
// require(_startBlock >= getBlockNumber());
// require(_startBlock < _endBlock);
// startBlock = _startBlock;
// endBlock = _endBlock;
// require(_dynamicCeiling != 0x0);
// dynamicCeiling = DynamicCeiling(_dynamicCeiling);
// require(_destEthDevs != 0x0);
// destEthDevs = _destEthDevs;
// require(_destTokensReserve != 0x0);
// destTokensReserve = _destTokensReserve;
// require(_destTokensSgt != 0x0);
// destTokensSgt = _destTokensSgt;
// require(_destTokensDevs != 0x0);
// destTokensDevs = _destTokensDevs;
// require(_sgt != 0x0);
// SGT = MiniMeToken(_sgt);
// require(_maxSGTSupply >= MiniMeToken(SGT).totalSupply());
// maxSGTSupply = _maxSGTSupply;
// }
// /// @notice Sets the limit for a guaranteed address. All the guaranteed addresses
// /// will be able to get SNTs during the contribution period with his own
// /// specific limit.
// /// This method should be called by the owner after the initialization
// /// and before the contribution starts.
// /// @param _th Guaranteed address
// /// @param _limit Limit for the guaranteed address.
// function setGuaranteedAddress(address _th, uint256 _limit) public initialized onlyOwner {
// require(getBlockNumber() < startBlock);
// require(_limit > 0 && _limit <= maxGuaranteedLimit);
// guaranteedBuyersLimit[_th] = _limit;
// GuaranteedAddress(_th, _limit);
// }
// /// @notice If anybody sends Ether directly to this contract, consider he is
// /// getting SNTs.
// function () public payable notPaused {
// proxyPayment(msg.sender);
// }
// //////////
// // MiniMe Controller functions
// //////////
// /// @notice This method will generally be called by the SNT token contract to
// /// acquire SNTs. Or directly from third parties that want to acquire SNTs in
// /// behalf of a token holder.
// /// @param _th SNT holder where the SNTs will be minted.
// function proxyPayment(address _th) public payable notPaused initialized contributionOpen returns (bool) {
// require(_th != 0x0);
// if (guaranteedBuyersLimit[_th] > 0) {
// buyGuaranteed(_th);
// } else {
// buyNormal(_th);
// }
// return true;
// }
// function onTransfer(address, address, uint256) public returns (bool) {
// return false;
// }
// function onApprove(address, address, uint256) public returns (bool) {
// return false;
// }
// function buyNormal(address _th) internal {
// require(tx.gasprice <= maxGasPrice);
// // Antispam mechanism
// address caller;
// if (msg.sender == address(SNT)) {
// caller = _th;
// } else {
// caller = msg.sender;
// }
// // Do not allow contracts to game the system
// require(!isContract(caller));
// require(getBlockNumber().sub(lastCallBlock[caller]) >= maxCallFrequency);
// lastCallBlock[caller] = getBlockNumber();
// uint256 toCollect = dynamicCeiling.toCollect(totalNormalCollected);
// uint256 toFund;
// if (msg.value <= toCollect) {
// toFund = msg.value;
// } else {
// toFund = toCollect;
// }
// totalNormalCollected = totalNormalCollected.add(toFund);
// doBuy(_th, toFund, false);
// }
// function buyGuaranteed(address _th) internal {
// uint256 toCollect = guaranteedBuyersLimit[_th];
// uint256 toFund;
// if (guaranteedBuyersBought[_th].add(msg.value) > toCollect) {
// toFund = toCollect.sub(guaranteedBuyersBought[_th]);
// } else {
// toFund = msg.value;
// }
// guaranteedBuyersBought[_th] = guaranteedBuyersBought[_th].add(toFund);
// totalGuaranteedCollected = totalGuaranteedCollected.add(toFund);
// doBuy(_th, toFund, true);
// }
// function doBuy(address _th, uint256 _toFund, bool _guaranteed) internal {
// assert(msg.value >= _toFund); // Not needed, but double check.
// assert(totalCollected() <= failSafeLimit);
// if (_toFund > 0) {
// uint256 tokensGenerated = _toFund.mul(exchangeRate);
// assert(SNT.generateTokens(_th, tokensGenerated));
// destEthDevs.transfer(_toFund);
// NewSale(_th, _toFund, tokensGenerated, _guaranteed);
// }
// uint256 toReturn = msg.value.sub(_toFund);
// if (toReturn > 0) {
// // If the call comes from the Token controller,
// // then we return it to the token Holder.
// // Otherwise we return to the sender.
// if (msg.sender == address(SNT)) {
// _th.transfer(toReturn);
// } else {
// msg.sender.transfer(toReturn);
// }
// }
// }
// // NOTE on Percentage format
// // Right now, Solidity does not support decimal numbers. (This will change very soon)
// // So in this contract we use a representation of a percentage that consist in
// // expressing the percentage in "x per 10**18"
// // This format has a precision of 16 digits for a percent.
// // Examples:
// // 3% = 3*(10**16)
// // 100% = 100*(10**16) = 10**18
// //
// // To get a percentage of a value we do it by first multiplying it by the percentage in (x per 10^18)
// // and then divide it by 10**18
// //
// // Y * X(in x per 10**18)
// // X% of Y = -------------------------
// // 100(in x per 10**18)
// //
// /// @notice This method will can be called by the owner before the contribution period
// /// end or by anybody after the `endBlock`. This method finalizes the contribution period
// /// by creating the remaining tokens and transferring the controller to the configured
// /// controller.
// function finalize() public initialized {
// require(getBlockNumber() >= startBlock);
// require(msg.sender == owner || getBlockNumber() > endBlock);
// require(finalizedBlock == 0);
// // Do not allow termination until all curves revealed.
// require(dynamicCeiling.allRevealed());
// // Allow premature finalization if final limit is reached
// if (getBlockNumber() <= endBlock) {
// var (,lastLimit,,) = dynamicCeiling.curves(dynamicCeiling.revealedCurves().sub(1));
// require(totalNormalCollected >= lastLimit);
// }
// finalizedBlock = getBlockNumber();
// finalizedTime = now;
// uint256 percentageToSgt;
// if (SGT.totalSupply() >= maxSGTSupply) {
// percentageToSgt = percent(10); // 10%
// } else {
// //
// // SGT.totalSupply()
// // percentageToSgt = 10% * -------------------
// // maxSGTSupply
// //
// percentageToSgt = percent(10).mul(SGT.totalSupply()).div(maxSGTSupply);
// }
// uint256 percentageToDevs = percent(20); // 20%
// //
// // % To Contributors = 41% + (10% - % to SGT holders)
// //
// uint256 percentageToContributors = percent(41).add(percent(10).sub(percentageToSgt));
// uint256 percentageToReserve = percent(29);
// // SNT.totalSupply() -> Tokens minted during the contribution
// // totalTokens -> Total tokens that should be after the allocation
// // of devTokens, sgtTokens and reserve
// // percentageToContributors -> Which percentage should go to the
// // contribution participants
// // (x per 10**18 format)
// // percent(100) -> 100% in (x per 10**18 format)
// //
// // percentageToContributors
// // SNT.totalSupply() = -------------------------- * totalTokens =>
// // percent(100)
// //
// //
// // percent(100)
// // => totalTokens = ---------------------------- * SNT.totalSupply()
// // percentageToContributors
// //
// uint256 totalTokens = SNT.totalSupply().mul(percent(100)).div(percentageToContributors);
// // Generate tokens for SGT Holders.
// //
// // percentageToReserve
// // reserveTokens = ----------------------- * totalTokens
// // percentage(100)
// //
// assert(SNT.generateTokens(
// destTokensReserve,
// totalTokens.mul(percentageToReserve).div(percent(100))));
// //
// // percentageToSgt
// // sgtTokens = ----------------------- * totalTokens
// // percentage(100)
// //
// assert(SNT.generateTokens(
// destTokensSgt,
// totalTokens.mul(percentageToSgt).div(percent(100))));
// //
// // percentageToDevs
// // devTokens = ----------------------- * totalTokens
// // percentage(100)
// //
// assert(SNT.generateTokens(
// destTokensDevs,
// totalTokens.mul(percentageToDevs).div(percent(100))));
// SNT.changeController(sntController);
// Finalized();
// }
// function percent(uint256 p) internal returns (uint256) {
// return p.mul(10**16);
// }
// /// @dev Internal function to determine if an address is a contract
// /// @param _addr The address being queried
// /// @return True if `_addr` is a contract
// function isContract(address _addr) constant internal returns (bool) {
// if (_addr == 0) return false;
// uint256 size;
// assembly {
// size := extcodesize(_addr)
// }
// return (size > 0);
// }
// //////////
// // Constant functions
// //////////
// /// @return Total tokens issued in weis.
// function tokensIssued() public constant returns (uint256) {
// return SNT.totalSupply();
// }
// /// @return Total Ether collected.
// function totalCollected() public constant returns (uint256) {
// return totalNormalCollected.add(totalGuaranteedCollected);
// }
// //////////
// // Testing specific methods
// //////////
// /// @notice This function is overridden by the test Mocks.
// function getBlockNumber() internal constant returns (uint256) {
// return block.number;
// }
// //////////
// // Safety Methods
// //////////
// /// @notice This method can be used by the controller to extract mistakenly
// /// sent tokens to this contract.
// /// @param _token The address of the token contract that you want to recover
// /// set to 0 in case you want to extract ether.
// function claimTokens(address _token) public onlyOwner {
// if (SNT.controller() == address(this)) {
// SNT.claimTokens(_token);
// }
// if (_token == 0x0) {
// owner.transfer(this.balance);
// return;
// }
// ERC20Token token = ERC20Token(_token);
// uint256 balance = token.balanceOf(this);
// token.transfer(owner, balance);
// ClaimedTokens(_token, owner, balance);
// }
// /// @notice Pauses the contribution if there is any issue
// function pauseContribution() onlyOwner {
// paused = true;
// }
// /// @notice Resumes the contribution
// function resumeContribution() onlyOwner {
// paused = false;
// }
// event ClaimedTokens(address indexed _token, address indexed _controller, uint256 _amount);
// event NewSale(address indexed _th, uint256 _amount, uint256 _tokens, bool _guaranteed);
// event GuaranteedAddress(address indexed _th, uint256 _limit);
// event Finalized();
// }
// /*
// Copyright 2017, Jordi Baylina
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// */
// /// @title ContributionWallet Contract
// /// @author Jordi Baylina
// /// @dev This contract will be hold the Ether during the contribution period.
// /// The idea of this contract is to avoid recycling Ether during the contribution
// /// period. So all the ETH collected will be locked here until the contribution
// /// period ends
// // @dev Contract to hold sale raised funds during the sale period.
// // Prevents attack in which the Aragon Multisig sends raised ether
// // to the sale contract to mint tokens to itself, and getting the
// // funds back immediately.
// contract ContributionWallet {
// // Public variables
// address public multisig;
// uint256 public endBlock;
// StatusContribution public contribution;
// // @dev Constructor initializes public variables
// // @param _multisig The address of the multisig that will receive the funds
// // @param _endBlock Block after which the multisig can request the funds
// // @param _contribution Address of the StatusContribution contract
// function ContributionWallet(address _multisig, uint256 _endBlock, address _contribution) {
// require(_multisig != 0x0);
// require(_contribution != 0x0);
// require(_endBlock != 0 && _endBlock <= 4000000);
// multisig = _multisig;
// endBlock = _endBlock;
// contribution = StatusContribution(_contribution);
// }
// // @dev Receive all sent funds without any further logic
// function () public payable {}
// // @dev Withdraw function sends all the funds to the wallet if conditions are correct
// function withdraw() public {
// require(msg.sender == multisig); // Only the multisig can request it
// require(block.number > endBlock || // Allow after end block
// contribution.finalizedBlock() != 0); // Allow when sale is finalized
// multisig.transfer(this.balance);
// }
// }
// /*
// Copyright 2017, Jordi Baylina
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// */
// /// @title DevTokensHolder Contract
// /// @author Jordi Baylina
// /// @dev This contract will hold the tokens of the developers.
// /// Tokens will not be able to be collected until 6 months after the contribution
// /// period ends. And it will be increasing linearly until 2 years.
// // collectable tokens
// // | _/-------- vestedTokens rect
// // | _/
// // | _/
// // | _/
// // | _/
// // | _/
// // | _/
// // | _/
// // | |
// // | . |
// // | . |
// // | . |
// // +===+======+--------------+----------> time
// // Contrib 6 Months 24 Months
// // End
// contract DevTokensHolder is Owned {
// using SafeMath for uint256;
// uint256 collectedTokens;
// StatusContribution contribution;
// MiniMeToken snt;
// function DevTokensHolder(address _owner, address _contribution, address _snt) {
// owner = _owner;
// contribution = StatusContribution(_contribution);
// snt = MiniMeToken(_snt);
// }
// /// @notice The Dev (Owner) will call this method to extract the tokens
// function collectTokens() public onlyOwner {
// uint256 balance = snt.balanceOf(address(this));
// uint256 total = collectedTokens.add(balance);
// uint256 finalizedTime = contribution.finalizedTime();
// require(finalizedTime > 0 && getTime() > finalizedTime.add(months(6)));
// uint256 canExtract = total.mul(getTime().sub(finalizedTime)).div(months(24));
// canExtract = canExtract.sub(collectedTokens);
// if (canExtract > balance) {
// canExtract = balance;
// }
// collectedTokens = collectedTokens.add(canExtract);
// assert(snt.transfer(owner, canExtract));
// TokensWithdrawn(owner, canExtract);
// }
// function months(uint256 m) internal returns (uint256) {
// return m.mul(30 days);
// }
// function getTime() internal returns (uint256) {
// return now;
// }
// //////////
// // Safety Methods
// //////////
// /// @notice This method can be used by the controller to extract mistakenly
// /// sent tokens to this contract.
// /// @param _token The address of the token contract that you want to recover
// /// set to 0 in case you want to extract ether.
// function claimTokens(address _token) public onlyOwner {
// require(_token != address(snt));
// if (_token == 0x0) {
// owner.transfer(this.balance);
// return;
// }
// ERC20Token token = ERC20Token(_token);
// uint256 balance = token.balanceOf(this);
// token.transfer(owner, balance);
// ClaimedTokens(_token, owner, balance);
// }
// event ClaimedTokens(address indexed _token, address indexed _controller, uint256 _amount);
// event TokensWithdrawn(address indexed _holder, uint256 _amount);
// }
// /*
// Copyright 2017, Jordi Baylina
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// */
// /// @title SGTExchanger Contract
// /// @author Jordi Baylina
// /// @dev This contract will be used to distribute SNT between SGT holders.
// /// SGT token is not transferable, and we just keep an accounting between all tokens
// /// deposited and the tokens collected.
// /// The controllerShip of SGT should be transferred to this contract before the
// /// contribution period starts.
// contract SGTExchanger is TokenController, Owned {
// using SafeMath for uint256;
// mapping (address => uint256) public collected;
// uint256 public totalCollected;
// MiniMeToken public sgt;
// MiniMeToken public snt;
// StatusContribution public statusContribution;
// function SGTExchanger(address _sgt, address _snt, address _statusContribution) {
// sgt = MiniMeToken(_sgt);
// snt = MiniMeToken(_snt);
// statusContribution = StatusContribution(_statusContribution);
// }
// /// @notice This method should be called by the SGT holders to collect their
// /// corresponding SNTs
// function collect() public {
// uint256 finalizedBlock = statusContribution.finalizedBlock();
// require(finalizedBlock != 0);
// require(getBlockNumber() > finalizedBlock);
// uint256 total = totalCollected.add(snt.balanceOf(address(this)));
// uint256 balance = sgt.balanceOfAt(msg.sender, finalizedBlock);
// // First calculate how much correspond to him
// uint256 amount = total.mul(balance).div(sgt.totalSupplyAt(finalizedBlock));
// // And then subtract the amount already collected
// amount = amount.sub(collected[msg.sender]);
// require(amount > 0); // Notify the user that there are no tokens to exchange
// totalCollected = totalCollected.add(amount);
// collected[msg.sender] = collected[msg.sender].add(amount);
// assert(snt.transfer(msg.sender, amount));
// TokensCollected(msg.sender, amount);
// }
// function proxyPayment(address) public payable returns (bool) {
// throw;
// }
// function onTransfer(address, address, uint256) public returns (bool) {
// return false;
// }
// function onApprove(address, address, uint256) public returns (bool) {
// return false;
// }
// //////////
// // Testing specific methods
// //////////
// /// @notice This function is overridden by the test Mocks.
// function getBlockNumber() internal constant returns (uint256) {
// return block.number;
// }
// //////////
// // Safety Method
// //////////
// /// @notice This method can be used by the controller to extract mistakenly
// /// sent tokens to this contract.
// /// @param _token The address of the token contract that you want to recover
// /// set to 0 in case you want to extract ether.
// function claimTokens(address _token) public onlyOwner {
// require(_token != address(snt));
// if (_token == 0x0) {
// owner.transfer(this.balance);
// return;
// }
// ERC20Token token = ERC20Token(_token);
// uint256 balance = token.balanceOf(this);
// token.transfer(owner, balance);
// ClaimedTokens(_token, owner, balance);
// }
// event ClaimedTokens(address indexed _token, address indexed _controller, uint256 _amount);
// event TokensCollected(address indexed _holder, uint256 _amount);
// }
// /*
// Copyright 2017, Jordi Baylina
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// */
// /// @title SNTPlaceholder Contract
// /// @author Jordi Baylina
// /// @dev The SNTPlaceholder contract will take control over the SNT after the contribution
// /// is finalized and before the Status Network is deployed.
// /// The contract allows for SNT transfers and transferFrom and implements the
// /// logic for transferring control of the token to the network when the offering
// /// asks it to do so.
// contract SNTPlaceHolder is TokenController, Owned {
// using SafeMath for uint256;
// MiniMeToken public snt;
// StatusContribution public contribution;
// uint256 public activationTime;
// address public sgtExchanger;
// /// @notice Constructor
// /// @param _owner Trusted owner for this contract.
// /// @param _snt SNT token contract address
// /// @param _contribution StatusContribution contract address
// /// @param _sgtExchanger SGT-SNT Exchange address. (During the first week
// /// only this exchanger will be able to move tokens)
// function SNTPlaceHolder(address _owner, address _snt, address _contribution, address _sgtExchanger) {
// owner = _owner;
// snt = MiniMeToken(_snt);
// contribution = StatusContribution(_contribution);
// sgtExchanger = _sgtExchanger;
// }
// /// @notice The owner of this contract can change the controller of the SNT token
// /// Please, be sure that the owner is a trusted agent or 0x0 address.
// /// @param _newController The address of the new controller
// function changeController(address _newController) public onlyOwner {
// snt.changeController(_newController);
// ControllerChanged(_newController);
// }
// //////////
// // MiniMe Controller Interface functions
// //////////
// // In between the offering and the network. Default settings for allowing token transfers.
// function proxyPayment(address) public payable returns (bool) {
// return false;
// }
// function onTransfer(address _from, address, uint256) public returns (bool) {
// return transferable(_from);
// }
// function onApprove(address _from, address, uint256) public returns (bool) {
// return transferable(_from);
// }
// function transferable(address _from) internal returns (bool) {
// // Allow the exchanger to work from the beginning
// if (activationTime == 0) {
// uint256 f = contribution.finalizedTime();
// if (f > 0) {
// activationTime = f.add(1 weeks);
// } else {
// return false;
// }
// }
// return (getTime() > activationTime) || (_from == sgtExchanger);
// }
// //////////
// // Testing specific methods
// //////////
// /// @notice This function is overrided by the test Mocks.
// function getTime() internal returns (uint256) {
// return now;
// }
// //////////
// // Safety Methods
// //////////
// /// @notice This method can be used by the controller to extract mistakenly
// /// sent tokens to this contract.
// /// @param _token The address of the token contract that you want to recover
// /// set to 0 in case you want to extract ether.
// function claimTokens(address _token) public onlyOwner {
// if (snt.controller() == address(this)) {
// snt.claimTokens(_token);
// }
// if (_token == 0x0) {
// owner.transfer(this.balance);
// return;
// }
// ERC20Token token = ERC20Token(_token);
// uint256 balance = token.balanceOf(this);
// token.transfer(owner, balance);
// ClaimedTokens(_token, owner, balance);
// }
// event ClaimedTokens(address indexed _token, address indexed _controller, uint256 _amount);
// event ControllerChanged(address indexed _newController);
// }
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