Contract Source Code:
File 1 of 1 : GMRToken
pragma solidity ^0.4.19;
// File: zeppelin\ownership\Ownable.sol
/**
* @title Ownable
* @dev The Ownable contract has an owner address, and provides basic authorization control
* functions, this simplifies the implementation of "user permissions".
*/
contract Ownable {
address public owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
function Ownable() public {
owner = msg.sender;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferOwnership(address newOwner) public onlyOwner {
require(newOwner != address(0));
OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
}
// File: zeppelin\math\SafeMath.sol
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
library SafeMath {
/**
* @dev Multiplies two numbers, throws on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
assert(c / a == b);
return c;
}
/**
* @dev Integer division of two numbers, truncating the quotient.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
// assert(b > 0); // Solidity automatically throws when dividing by 0
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a);
return a - b;
}
/**
* @dev Adds two numbers, throws on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}
// File: zeppelin\token\ERC20\ERC20Basic.sol
/**
* @title ERC20Basic
* @dev Simpler version of ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/179
*/
contract ERC20Basic {
function totalSupply() public view returns (uint256);
function balanceOf(address who) public view returns (uint256);
function transfer(address to, uint256 value) public returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}
// File: zeppelin\token\ERC20\BasicToken.sol
/**
* @title Basic token
* @dev Basic version of StandardToken, with no allowances.
*/
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
uint256 totalSupply_;
/**
* @dev total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
/**
* @dev transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
require(_value <= balances[msg.sender]);
// SafeMath.sub will throw if there is not enough balance.
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
}
// File: zeppelin\token\ERC20\ERC20.sol
/**
* @title ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) public view returns (uint256);
function transferFrom(address from, address to, uint256 value) public returns (bool);
function approve(address spender, uint256 value) public returns (bool);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// File: zeppelin\token\ERC20\StandardToken.sol
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* @dev https://github.com/ethereum/EIPs/issues/20
* @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) internal allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
*
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) public returns (bool) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(address _owner, address _spender) public view returns (uint256) {
return allowed[_owner][_spender];
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
*
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
*
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {
uint oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
// File: zeppelin\token\ERC20\MintableToken.sol
/**
* @title Mintable token
* @dev Simple ERC20 Token example, with mintable token creation
* @dev Issue: * https://github.com/OpenZeppelin/zeppelin-solidity/issues/120
* Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol
*/
contract MintableToken is StandardToken, Ownable {
event Mint(address indexed to, uint256 amount);
event MintFinished();
bool public mintingFinished = false;
modifier canMint() {
require(!mintingFinished);
_;
}
/**
* @dev Function to mint tokens
* @param _to The address that will receive the minted tokens.
* @param _amount The amount of tokens to mint.
* @return A boolean that indicates if the operation was successful.
*/
function mint(address _to, uint256 _amount) onlyOwner canMint public returns (bool) {
totalSupply_ = totalSupply_.add(_amount);
balances[_to] = balances[_to].add(_amount);
Mint(_to, _amount);
Transfer(address(0), _to, _amount);
return true;
}
/**
* @dev Function to stop minting new tokens.
* @return True if the operation was successful.
*/
function finishMinting() onlyOwner canMint public returns (bool) {
mintingFinished = true;
MintFinished();
return true;
}
}
// File: contracts\GMRToken.sol
/**
* @title Gimmer Token Smart Contract
* @author [email protected], [email protected]
*/
contract GMRToken is MintableToken {
// Constants
string public constant name = "GimmerToken";
string public constant symbol = "GMR";
uint8 public constant decimals = 18;
/**
* @dev Modifier to only allow transfers after the token sale has finished
*/
modifier onlyWhenTransferEnabled() {
require(mintingFinished);
_;
}
/**
* @dev Modifier to not allow transfers
* to 0x0 and to this contract
*/
modifier validDestination(address _to) {
require(_to != address(0x0));
require(_to != address(this));
_;
}
function GMRToken() public {
}
function transferFrom(address _from, address _to, uint256 _value) public
onlyWhenTransferEnabled
validDestination(_to)
returns (bool) {
return super.transferFrom(_from, _to, _value);
}
function approve(address _spender, uint256 _value) public
onlyWhenTransferEnabled
returns (bool) {
return super.approve(_spender, _value);
}
function increaseApproval (address _spender, uint _addedValue) public
onlyWhenTransferEnabled
returns (bool) {
return super.increaseApproval(_spender, _addedValue);
}
function decreaseApproval (address _spender, uint _subtractedValue) public
onlyWhenTransferEnabled
returns (bool) {
return super.decreaseApproval(_spender, _subtractedValue);
}
function transfer(address _to, uint256 _value) public
onlyWhenTransferEnabled
validDestination(_to)
returns (bool) {
return super.transfer(_to, _value);
}
}
// File: zeppelin\lifecycle\Pausable.sol
/**
* @title Pausable
* @dev Base contract which allows children to implement an emergency stop mechanism.
*/
contract Pausable is Ownable {
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*/
modifier whenNotPaused() {
require(!paused);
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*/
modifier whenPaused() {
require(paused);
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() onlyOwner whenNotPaused public {
paused = true;
Pause();
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() onlyOwner whenPaused public {
paused = false;
Unpause();
}
}
// File: contracts\GimmerToken.sol
/**
* @title Gimmer Token Smart Contract
* @author [email protected], [email protected]
*/
contract GimmerToken is MintableToken {
// Constants
string public constant name = "GimmerToken";
string public constant symbol = "GMR";
uint8 public constant decimals = 18;
/**
* @dev Modifier to only allow transfers after the minting has been done
*/
modifier onlyWhenTransferEnabled() {
require(mintingFinished);
_;
}
modifier validDestination(address _to) {
require(_to != address(0x0));
require(_to != address(this));
_;
}
function GimmerToken() public {
}
function transferFrom(address _from, address _to, uint256 _value) public
onlyWhenTransferEnabled
validDestination(_to)
returns (bool) {
return super.transferFrom(_from, _to, _value);
}
function approve(address _spender, uint256 _value) public
onlyWhenTransferEnabled
returns (bool) {
return super.approve(_spender, _value);
}
function increaseApproval (address _spender, uint _addedValue) public
onlyWhenTransferEnabled
returns (bool) {
return super.increaseApproval(_spender, _addedValue);
}
function decreaseApproval (address _spender, uint _subtractedValue) public
onlyWhenTransferEnabled
returns (bool) {
return super.decreaseApproval(_spender, _subtractedValue);
}
function transfer(address _to, uint256 _value) public
onlyWhenTransferEnabled
validDestination(_to)
returns (bool) {
return super.transfer(_to, _value);
}
}
// File: contracts\GimmerTokenSale.sol
/**
* @title Gimmer Token Sale Smart Contract
* @author [email protected], [email protected]
*/
contract GimmerTokenSale is Pausable {
using SafeMath for uint256;
/**
* @dev Supporter structure, which allows us to track
* how much the user has bought so far, and if he's flagged as known
*/
struct Supporter {
uint256 weiSpent; // the total amount of Wei this address has sent to this contract
bool hasKYC; // if the user has KYC flagged
}
// Variables
mapping(address => Supporter) public supportersMap; // Mapping with all the campaign supporters
GimmerToken public token; // ERC20 GMR Token contract address
address public fundWallet; // Wallet address to forward all Ether to
address public kycManagerWallet; // Wallet address that manages the approval of KYC
address public currentAddress; // Wallet address that manages the approval of KYC
uint256 public tokensSold; // How many tokens sold have been sold in total
uint256 public weiRaised; // Total amount of raised money in Wei
uint256 public maxTxGas; // Maximum transaction gas price allowed for fair-chance transactions
uint256 public saleWeiLimitWithoutKYC; // The maximum amount of Wei an address can spend here without needing KYC approval during CrowdSale
bool public finished; // Flag denoting the owner has invoked finishContract()
uint256 public constant ONE_MILLION = 1000000; // One million for token cap calculation reference
uint256 public constant PRE_SALE_GMR_TOKEN_CAP = 15 * ONE_MILLION * 1 ether; // Maximum amount that can be sold during the Pre Sale period
uint256 public constant GMR_TOKEN_SALE_CAP = 100 * ONE_MILLION * 1 ether; // Maximum amount of tokens that can be sold by this contract
uint256 public constant MIN_ETHER = 0.1 ether; // Minimum ETH Contribution allowed during the crowd sale
/* Allowed Contribution in Ether */
uint256 public constant PRE_SALE_30_ETH = 30 ether; // Minimum 30 Ether to get 25% Bonus Tokens
uint256 public constant PRE_SALE_300_ETH = 300 ether; // Minimum 300 Ether to get 30% Bonus Tokens
uint256 public constant PRE_SALE_1000_ETH = 1000 ether; // Minimum 3000 Ether to get 40% Bonus Tokens
/* Bonus Tokens based on the ETH Contributed in single transaction */
uint256 public constant TOKEN_RATE_BASE_RATE = 2500; // Base Price for reference only
uint256 public constant TOKEN_RATE_05_PERCENT_BONUS = 2625; // 05% Bonus Tokens During Crowd Sale's Week 4
uint256 public constant TOKEN_RATE_10_PERCENT_BONUS = 2750; // 10% Bonus Tokens During Crowd Sale's Week 3
uint256 public constant TOKEN_RATE_15_PERCENT_BONUS = 2875; // 15% Bonus Tokens During Crowd Sale'sWeek 2
uint256 public constant TOKEN_RATE_20_PERCENT_BONUS = 3000; // 20% Bonus Tokens During Crowd Sale'sWeek 1
uint256 public constant TOKEN_RATE_25_PERCENT_BONUS = 3125; // 25% Bonus Tokens, During PreSale when >= 30 ETH & < 300 ETH
uint256 public constant TOKEN_RATE_30_PERCENT_BONUS = 3250; // 30% Bonus Tokens, During PreSale when >= 300 ETH & < 3000 ETH
uint256 public constant TOKEN_RATE_40_PERCENT_BONUS = 3500; // 40% Bonus Tokens, During PreSale when >= 3000 ETH
/* Timestamps where investments are allowed */
uint256 public constant PRE_SALE_START_TIME = 1525176000; // PreSale Start Time : UTC: Wednesday, 17 January 2018 12:00:00
uint256 public constant PRE_SALE_END_TIME = 1525521600; // PreSale End Time : UTC: Wednesday, 31 January 2018 12:00:00
uint256 public constant START_WEEK_1 = 1525608000; // CrowdSale Start Week-1 : UTC: Thursday, 1 February 2018 12:00:00
uint256 public constant START_WEEK_2 = 1526040000; // CrowdSale Start Week-2 : UTC: Thursday, 8 February 2018 12:00:00
uint256 public constant START_WEEK_3 = 1526472000; // CrowdSale Start Week-3 : UTC: Thursday, 15 February 2018 12:00:00
uint256 public constant START_WEEK_4 = 1526904000; // CrowdSale Start Week-4 : UTC: Thursday, 22 February 2018 12:00:00
uint256 public constant SALE_END_TIME = 1527336000; // CrowdSale End Time : UTC: Thursday, 1 March 2018 12:00:00
/**
* @dev Modifier to only allow KYCManager Wallet
* to execute a function
*/
modifier onlyKycManager() {
require(msg.sender == kycManagerWallet);
_;
}
/**
* Event for token purchase logging
* @param purchaser The wallet address that bought the tokens
* @param value How many Weis were paid for the purchase
* @param amount The amount of tokens purchased
*/
event TokenPurchase(address indexed purchaser, uint256 value, uint256 amount);
/**
* Event for kyc status change logging
* @param user User who has had his KYC status changed
* @param isApproved A boolean representing the KYC approval the user has been changed to
*/
event KYC(address indexed user, bool isApproved);
/**
* Constructor
* @param _fundWallet Address to forward all received Ethers to
* @param _kycManagerWallet KYC Manager wallet to approve / disapprove user's KYC
* @param _saleWeiLimitWithoutKYC Maximum amount of Wei an address can spend in the contract without KYC during the crowdsale
* @param _maxTxGas Maximum gas price a transaction can have before being reverted
*/
function GimmerTokenSale(
address _fundWallet,
address _kycManagerWallet,
uint256 _saleWeiLimitWithoutKYC,
uint256 _maxTxGas
)
public
{
require(_fundWallet != address(0));
require(_kycManagerWallet != address(0));
require(_saleWeiLimitWithoutKYC > 0);
require(_maxTxGas > 0);
currentAddress = this;
fundWallet = _fundWallet;
kycManagerWallet = _kycManagerWallet;
saleWeiLimitWithoutKYC = _saleWeiLimitWithoutKYC;
maxTxGas = _maxTxGas;
token = new GimmerToken();
}
/* fallback function can be used to buy tokens */
function () public payable {
buyTokens();
}
/* low level token purchase function */
function buyTokens() public payable whenNotPaused {
// Do not allow if gasprice is bigger than the maximum
// This is for fair-chance for all contributors, so no one can
// set a too-high transaction price and be able to buy earlier
require(tx.gasprice <= maxTxGas);
// valid purchase identifies which stage the contract is at (PreState/Token Sale)
// making sure were inside the contribution period and the user
// is sending enough Wei for the stage's rules
require(validPurchase());
address sender = msg.sender;
uint256 weiAmountSent = msg.value;
// calculate token amount to be created
uint256 rate = getRate(weiAmountSent);
uint256 newTokens = weiAmountSent.mul(rate);
// look if we have not yet reached the cap
uint256 totalTokensSold = tokensSold.add(newTokens);
if (isCrowdSaleRunning()) {
require(totalTokensSold <= GMR_TOKEN_SALE_CAP);
} else if (isPreSaleRunning()) {
require(totalTokensSold <= PRE_SALE_GMR_TOKEN_CAP);
}
// update supporter state
Supporter storage sup = supportersMap[sender];
uint256 totalWei = sup.weiSpent.add(weiAmountSent);
sup.weiSpent = totalWei;
// update contract state
weiRaised = weiRaised.add(weiAmountSent);
tokensSold = totalTokensSold;
// mint the coins
token.mint(sender, newTokens);
TokenPurchase(sender, weiAmountSent, newTokens);
// forward the funds to the wallet
fundWallet.transfer(msg.value);
}
/**
* @dev Ends the operation of the contract
*/
function finishContract() public onlyOwner {
// make sure the contribution period has ended
require(now > SALE_END_TIME);
require(!finished);
finished = true;
// send the 10% commission to Gimmer's fund wallet
uint256 tenPC = tokensSold.div(10);
token.mint(fundWallet, tenPC);
// finish the minting of the token, so the system allows transfers
token.finishMinting();
// transfer ownership of the token contract to the fund wallet,
// so it isn't locked to be a child of the crowd sale contract
token.transferOwnership(fundWallet);
}
function setSaleWeiLimitWithoutKYC(uint256 _newSaleWeiLimitWithoutKYC) public onlyKycManager {
require(_newSaleWeiLimitWithoutKYC > 0);
saleWeiLimitWithoutKYC = _newSaleWeiLimitWithoutKYC;
}
/**
* @dev Updates the maximum allowed transaction cost that can be received
* on the buyTokens() function.
* @param _newMaxTxGas The new maximum transaction cost
*/
function updateMaxTxGas(uint256 _newMaxTxGas) public onlyKycManager {
require(_newMaxTxGas > 0);
maxTxGas = _newMaxTxGas;
}
/**
* @dev Flag an user as known
* @param _user The user to flag as known
*/
function approveUserKYC(address _user) onlyKycManager public {
require(_user != address(0));
Supporter storage sup = supportersMap[_user];
sup.hasKYC = true;
KYC(_user, true);
}
/**
* @dev Flag an user as unknown/disapproved
* @param _user The user to flag as unknown / suspecious
*/
function disapproveUserKYC(address _user) onlyKycManager public {
require(_user != address(0));
Supporter storage sup = supportersMap[_user];
sup.hasKYC = false;
KYC(_user, false);
}
/**
* @dev Changes the KYC manager to a new address
* @param _newKYCManagerWallet The new address that will be managing KYC approval
*/
function setKYCManager(address _newKYCManagerWallet) onlyOwner public {
require(_newKYCManagerWallet != address(0));
kycManagerWallet = _newKYCManagerWallet;
}
/**
* @dev Returns true if any of the token sale stages are currently running
* @return A boolean representing the state of this contract
*/
function isTokenSaleRunning() public constant returns (bool) {
return (isPreSaleRunning() || isCrowdSaleRunning());
}
/**
* @dev Returns true if the presale sale is currently running
* @return A boolean representing the state of the presale
*/
function isPreSaleRunning() public constant returns (bool) {
return (now >= PRE_SALE_START_TIME && now < PRE_SALE_END_TIME);
}
/**
* @dev Returns true if the public sale is currently running
* @return A boolean representing the state of the crowd sale
*/
function isCrowdSaleRunning() public constant returns (bool) {
return (now >= START_WEEK_1 && now <= SALE_END_TIME);
}
/**
* @dev Returns true if the public sale has ended
* @return A boolean representing if we are past the contribution date for this contract
*/
function hasEnded() public constant returns (bool) {
return now > SALE_END_TIME;
}
/**
* @dev Returns true if the pre sale has ended
* @return A boolean representing if we are past the pre sale contribution dates
*/
function hasPreSaleEnded() public constant returns (bool) {
return now > PRE_SALE_END_TIME;
}
/**
* @dev Returns if an user has KYC approval or not
* @return A boolean representing the user's KYC status
*/
function userHasKYC(address _user) public constant returns (bool) {
return supportersMap[_user].hasKYC;
}
/**
* @dev Returns the weiSpent of a user
*/
function userWeiSpent(address _user) public constant returns (uint256) {
return supportersMap[_user].weiSpent;
}
/**
* @dev Returns the rate the user will be paying at,
* based on the amount of Wei sent to the contract, and the current time
* @return An uint256 representing the rate the user will pay for the GMR tokens
*/
function getRate(uint256 _weiAmount) internal constant returns (uint256) {
if (isCrowdSaleRunning()) {
if (now >= START_WEEK_4) { return TOKEN_RATE_05_PERCENT_BONUS; }
else if (now >= START_WEEK_3) { return TOKEN_RATE_10_PERCENT_BONUS; }
else if (now >= START_WEEK_2) { return TOKEN_RATE_15_PERCENT_BONUS; }
else if (now >= START_WEEK_1) { return TOKEN_RATE_20_PERCENT_BONUS; }
}
else if (isPreSaleRunning()) {
if (_weiAmount >= PRE_SALE_1000_ETH) { return TOKEN_RATE_40_PERCENT_BONUS; }
else if (_weiAmount >= PRE_SALE_300_ETH) { return TOKEN_RATE_30_PERCENT_BONUS; }
else if (_weiAmount >= PRE_SALE_30_ETH) { return TOKEN_RATE_25_PERCENT_BONUS; }
}
}
/* @return true if the transaction can buy tokens, otherwise false */
function validPurchase() internal constant returns (bool) {
bool userHasKyc = userHasKYC(msg.sender);
if (isCrowdSaleRunning()) {
// crowdsale restrictions (KYC only needed after wei limit, minimum of 0.1 ETH tx)
if(!userHasKyc) {
Supporter storage sup = supportersMap[msg.sender];
uint256 ethContribution = sup.weiSpent.add(msg.value);
if (ethContribution > saleWeiLimitWithoutKYC) {
return false;
}
}
return msg.value >= MIN_ETHER;
}
else if (isPreSaleRunning()) {
// presale restrictions (at least 30 eth, always KYC)
return userHasKyc && msg.value >= PRE_SALE_30_ETH;
} else {
return false;
}
}
}
// File: contracts\GMRTokenManager.sol
/**
* @title Gimmer Token Sale Manager Smart Contract
* @author [email protected], [email protected]
*/
contract GMRTokenManager is Ownable {
using SafeMath for uint256;
/* Contracts */
GMRToken public token;
GimmerTokenSale public oldTokenSale;
/* Flags for tracking contract usage */
bool public finishedMigration;
/* Constants */
uint256 public constant TOKEN_BONUS_RATE = 8785; // The rate for the bonus given to precontract contributors
/**
* Constructor
* @param _oldTokenSaleAddress Old Token Sale contract address
*/
function GMRTokenManager(address _oldTokenSaleAddress) public {
// access the old token sale
oldTokenSale = GimmerTokenSale(_oldTokenSaleAddress);
// deploy the token contract
token = new GMRToken();
}
/**
* Prepopulates the specified wallet
* @param _wallet Wallet to mint the reserve tokens to
*/
function prepopulate(address _wallet) public onlyOwner {
require(!finishedMigration);
require(_wallet != address(0));
// get the balance the user spent in the last sale
uint256 spent = oldTokenSale.userWeiSpent(_wallet);
require(spent != 0);
// make sure we have not prepopulated already
uint256 balance = token.balanceOf(_wallet);
require(balance == 0);
// calculate the new balance with bonus
uint256 tokens = spent.mul(TOKEN_BONUS_RATE);
// mint the coins
token.mint(_wallet, tokens);
}
/**
* Ends the migration process by giving the token
* contract back to the owner
*/
function endMigration() public onlyOwner {
require(!finishedMigration);
finishedMigration = true;
token.transferOwnership(owner);
}
}