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@RideSolo RideSolo/axpire.sol Secret
Created May 7, 2019

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/**
* Source Code first verified at https://etherscan.io on Saturday, July 21, 2018
(UTC) */
pragma solidity ^0.4.24;
/**
* @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 c) {
// Gas optimization: this is cheaper than asserting 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
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 a / b;
}
/**
* @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 c) {
c = a + b;
assert(c >= a);
return c;
}
}
/**
* @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.
*/
constructor() 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));
emit OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
}
/**
* @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;
emit Pause();
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() onlyOwner whenPaused public {
paused = false;
emit Unpause();
}
}
contract Token {
uint256 public totalSupply;
function balanceOf(address _owner) public view returns (uint256 balance);
function transfer(address _to, uint256 _value) public returns (bool success);
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success);
function approve(address _spender, uint256 _value) public returns (bool success);
function allowance(address _owner, address _spender) public view returns (uint256 remaining);
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}
/**
* @title Reference implementation of the ERC220 standard token.
*/
contract StandardToken is Token {
function transfer(address _to, uint256 _value) public returns (bool success) {
if (balances[msg.sender] >= _value && _value > 0) {
balances[msg.sender] -= _value;
balances[_to] += _value;
emit Transfer(msg.sender, _to, _value);
return true;
} else {
return false;
}
}
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0) {
balances[_to] += _value;
balances[_from] -= _value;
allowed[_from][msg.sender] -= _value;
emit Transfer(_from, _to, _value);
return true;
} else {
return false;
}
}
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
function approve(address _spender, uint256 _value) public returns (bool success) {
require(_value == 0 || allowed[msg.sender][_spender] == 0);
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
return allowed[_owner][_spender];
}
mapping (address => uint256) balances;
mapping (address => mapping (address => uint256)) allowed;
}
contract BurnableToken is StandardToken, Ownable {
event Burn(address indexed burner, uint256 amount);
/**
* @dev Anybody can burn a specific amount of their tokens.
* @param _amount The amount of token to be burned.
*/
function burn(uint256 _amount) public {
require(_amount > 0);
require(_amount <= balances[msg.sender]);
// no need to require _amount <= totalSupply, since that would imply the
// sender's balance is greater than the totalSupply, which *should* be an assertion failure
address burner = msg.sender;
balances[burner] = SafeMath.sub(balances[burner],_amount);
totalSupply = SafeMath.sub(totalSupply,_amount);
emit Transfer(burner, address(0), _amount);
emit Burn(burner, _amount);
}
/**
* @dev Owner can burn a specific amount of tokens of other token holders.
* @param _from The address of token holder whose tokens to be burned.
* @param _amount The amount of token to be burned.
*/
function burnFrom(address _from, uint256 _amount) onlyOwner public {
require(_from != address(0));
require(_amount > 0);
require(_amount <= balances[_from]);
balances[_from] = SafeMath.sub(balances[_from],_amount);
totalSupply = SafeMath.sub(totalSupply,_amount);
emit Transfer(_from, address(0), _amount);
emit Burn(_from, _amount);
}
}
contract AxpirePausableToken is StandardToken, Pausable,BurnableToken {
function transfer(address _to, uint256 _value) public whenNotPaused returns (bool) {
return super.transfer(_to, _value);
}
function transferFrom(address _from, address _to, uint256 _value) public whenNotPaused returns (bool) {
return super.transferFrom(_from, _to, _value);
}
function approve(address _spender, uint256 _value) public whenNotPaused returns (bool) {
return super.approve(_spender, _value);
}
}
contract AxpireToken is AxpirePausableToken {
using SafeMath for uint;
// metadata
string public constant name = "aXpire";
string public constant symbol = "AXPR";
uint256 public constant decimals = 18;
address private ethFundDeposit;
address private escrowFundDeposit;
uint256 public icoTokenExchangeRate = 715; // 715 b66 tokens per 1 ETH
uint256 public tokenCreationCap = 350 * (10**6) * 10**decimals;
//address public ;
// crowdsale parameters
bool public tokenSaleActive; // switched to true in operational state
bool public haltIco;
bool public dead = false;
// events
event CreateToken(address indexed _to, uint256 _value);
event Transfer(address from, address to, uint256 value);
// constructor
constructor (
address _ethFundDeposit,
address _escrowFundDeposit
) public {
tokenSaleActive = true;
haltIco = true;
paused = true;
require(_ethFundDeposit != address(0));
require(_escrowFundDeposit != address(0));
ethFundDeposit = _ethFundDeposit;
escrowFundDeposit=_escrowFundDeposit;
balances[escrowFundDeposit] = tokenCreationCap;
totalSupply = tokenCreationCap;
emit CreateToken(escrowFundDeposit, totalSupply);
}
/// @dev Accepts ether and creates new tge tokens.
function createTokens() payable external {
if (!tokenSaleActive)
revert();
if (haltIco)
revert();
if (msg.value == 0)
revert();
uint256 tokens;
tokens = SafeMath.mul(msg.value, icoTokenExchangeRate); // check that we're not over totals
uint256 checkedSupply = SafeMath.add(totalSupply, tokens);
// return money if something goes wrong
if (tokenCreationCap < checkedSupply)
revert(); // odd fractions won't be found
totalSupply = checkedSupply;
balances[msg.sender] += tokens; // safeAdd not needed; bad semantics to use here
emit CreateToken(msg.sender, tokens); // logs token creation
}
function setIcoTokenExchangeRate (uint _icoTokenExchangeRate) onlyOwner external {
icoTokenExchangeRate = _icoTokenExchangeRate;
}
function setHaltIco(bool _haltIco) onlyOwner external {
haltIco = _haltIco;
}
/// @dev Ends the funding period and sends the ETH home
function sendFundHome() onlyOwner external { // move to operational
if (!ethFundDeposit.send(address(this).balance))
revert(); // send the eth to tge International
}
function sendFundHomeAmt(uint _amt) onlyOwner external {
if (!ethFundDeposit.send(_amt*10**decimals))
revert(); // send the eth to tge International
}
function toggleDead()
external
onlyOwner
returns (bool)
{
dead = !dead;
}
function endIco() onlyOwner external { // end ICO
// ensure that sale is active. is set to false at the end. can only be performed once.
require(tokenSaleActive == true);
tokenSaleActive=false;
}
}
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