Contract Source Code:
File 1 of 1 : CFXQV1
pragma solidity 0.4.26;
/**
* @title ERC20Basic
* @dev Simpler version of ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20Basic {
uint public _totalSupply;
function totalSupply() public constant returns (uint);
function balanceOf(address who) public constant returns (uint);
function transfer(address to, uint value) public;
event Transfer(address indexed from, address indexed to, uint value);
}
/**
* @title ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) public constant returns (uint);
function transferFrom(address from, address to, uint value) public;
function approve(address spender, uint value) public;
event Approval(address indexed owner, address indexed spender, uint value);
}
/**
* Utility library of inline functions on addresses
*/
library Address {
/**
* Returns whether the target address is a contract
* @dev This function will return false if invoked during the constructor of a contract,
* as the code is not actually created until after the constructor finishes.
* @param account address of the account to check
* @return whether the target address is a contract
*/
function isContract(address account) internal view returns (bool) {
uint256 size;
// XXX Currently there is no better way to check if there is a contract in an address
// than to check the size of the code at that address.
// See https://ethereum.stackexchange.com/a/14016/36603
// for more details about how this works.
// TODO Check this again before the Serenity release, because all addresses will be
// contracts then.
// solhint-disable-next-line no-inline-assembly
assembly { size := extcodesize(account) }
return size > 0;
}
}
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
library SafeMath {
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;
}
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;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}
/**
* @title Proxy
* @dev Gives the possibility to delegate any call to a foreign implementation.
*/
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function _implementation() internal view returns(address);
/**
* @dev Fallback function.
* Implemented entirely in `_fallback`.
*/
function _fallback() internal {
_delegate(_implementation());
}
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function _delegate(address implementation) internal {
/*solium-disable-next-line security/no-inline-assembly*/
assembly {
// Copy msg.data. We take full control of memory in this inline assembly
// block because it will not return to Solidity code. We overwrite the
// Solidity scratch pad at memory position 0.
calldatacopy(0, 0, calldatasize)
// Call the implementation.
// out and outsize are 0 because we don't know the size yet.
let result := delegatecall(gas, implementation, 0, calldatasize, 0, 0)
// Copy the returned data.
returndatacopy(0, 0, returndatasize)
switch result
// delegatecall returns 0 on error.
case 0 { revert(0, returndatasize) }
default { return(0, returndatasize) }
}
}
function() external payable {
_fallback();
}
}
/**
* @title UpgradeabilityProxy
* @dev This contract represents a proxy where the implementation address to which it will delegate can be upgraded
*/
contract UpgradeabilityProxy is Proxy {
// Version name of the current implementation
string internal __version;
// Address of the current implementation
address internal __implementation;
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param _newVersion representing the version name of the upgraded implementation
* @param _newImplementation representing the address of the upgraded implementation
*/
event Upgraded(string _newVersion, address indexed _newImplementation);
/**
* @dev Upgrades the implementation address
* @param _newVersion representing the version name of the new implementation to be set
* @param _newImplementation representing the address of the new implementation to be set
*/
function _upgradeTo(string memory _newVersion, address _newImplementation) internal {
require(
__implementation != _newImplementation && _newImplementation != address(0),
"Old address is not allowed and implementation address should not be 0x"
);
require(Address.isContract(_newImplementation), "Cannot set a proxy implementation to a non-contract address");
require(bytes(_newVersion).length > 0, "Version should not be empty string");
require(keccak256(abi.encodePacked(__version)) != keccak256(abi.encodePacked(_newVersion)), "New version equals to current");
__version = _newVersion;
__implementation = _newImplementation;
emit Upgraded(_newVersion, _newImplementation);
}
}
/**
* @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;
address public 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), "Address should not be 0x");
newOwner = _newOwner;
}
function approveOwnership() public{
require(newOwner == msg.sender);
owner = newOwner;
}
}
/**
* @title Basic token
* @dev Basic version of StandardToken, with no allowances.
*/
contract BasicToken is Ownable, ERC20Basic {
using SafeMath for uint;
mapping(address => uint) public balances;
/**
* @dev Fix for the ERC20 short address attack.
*/
modifier onlyPayloadSize(uint size) {
require(!(msg.data.length < size + 4));
_;
}
/**
* @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, uint _value) public onlyPayloadSize(2 * 32) {
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public constant returns (uint balance) {
return balances[_owner];
}
}
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* @dev https://github.com/ethereum/EIPs/issues/20
* @dev Based oncode by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
contract StandardToken is BasicToken, ERC20 {
mapping (address => mapping (address => uint)) public allowed;
uint public constant MAX_UINT = 2**256 - 1;
/**
* @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 uint the amount of tokens to be transferred
*/
function transferFrom(address _from, address _to, uint _value) public onlyPayloadSize(3 * 32) {
uint _allowance = allowed[_from][msg.sender];
if (_allowance < MAX_UINT) {
allowed[_from][msg.sender] = _allowance.sub(_value);
}
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(_from, _to, _value);
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint _value) public onlyPayloadSize(2 * 32) {
// 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
require(!((_value != 0) && (allowed[msg.sender][_spender] != 0)));
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
}
/**
* @dev Function to check the amount of tokens than 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 uint specifying the amount of tokens still available for the spender.
*/
function allowance(address _owner, address _spender) public constant returns (uint remaining) {
return allowed[_owner][_spender];
}
}
/**
* @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 BlackList is Ownable, BasicToken {
/////// Getters to allow the same blacklist to be used also by other contracts (including upgraded Tether) ///////
function getBlackListStatus(address _maker) external constant returns (bool) {
return isBlackListed[_maker];
}
mapping (address => bool) public isBlackListed;
function addBlackList (address _evilUser) public onlyOwner {
isBlackListed[_evilUser] = true;
emit AddedBlackList(_evilUser);
}
function removeBlackList (address _clearedUser) public onlyOwner {
isBlackListed[_clearedUser] = false;
emit RemovedBlackList(_clearedUser);
}
function destroyBlackFunds (address _blackListedUser) public onlyOwner {
require(isBlackListed[_blackListedUser]);
uint dirtyFunds = balanceOf(_blackListedUser);
balances[_blackListedUser] = 0;
_totalSupply -= dirtyFunds;
emit DestroyedBlackFunds(_blackListedUser, dirtyFunds);
}
event DestroyedBlackFunds(address _blackListedUser, uint _balance);
event AddedBlackList(address _user);
event RemovedBlackList(address _user);
}
contract TetherToken is Pausable, StandardToken, BlackList, UpgradeabilityProxy{
string public name;
string public symbol;
uint public decimals;
bool public deprecated;
// The contract can be initialized with a number of tokens
// All the tokens are deposited to the owner address
//
// @param _balance Initial supply of the contract
// @param _name Token Name
// @param _symbol Token symbol
// @param _decimals Token decimals
constructor(uint _initialSupply, string _name, string _symbol, uint _decimals) public {
_totalSupply = _initialSupply;
name = _name;
symbol = _symbol;
decimals = _decimals;
balances[owner] = _initialSupply;
deprecated = false;
}
function _implementation() internal view returns(address){
return __implementation;
}
modifier isDeprecated() {
if (deprecated) {
_fallback();
} else {
_;
}
}
// Forward ERC20 methods to upgraded contract if this one is deprecated
function transfer(address _to, uint _value) public whenNotPaused isDeprecated {
require(!isBlackListed[msg.sender]);
return super.transfer(_to, _value);
}
// Forward ERC20 methods to upgraded contract if this one is deprecated
function transferFrom(address _from, address _to, uint _value) public whenNotPaused isDeprecated{
require(!isBlackListed[_from]);
return super.transferFrom(_from, _to, _value);
}
// Forward ERC20 methods to upgraded contract if this one is deprecated
function balanceOf(address who) public constant returns (uint){
return super.balanceOf(who);
}
// Forward ERC20 methods to upgraded contract if this one is deprecated
function approve(address _spender, uint _value) public onlyPayloadSize(2 * 32) isDeprecated{
return super.approve(_spender, _value);
}
// Forward ERC20 methods to upgraded contract if this one is deprecated
function allowance(address _owner, address _spender) public constant returns (uint remaining){
return super.allowance(_owner, _spender);
}
function upgradeTo(string memory _newVersion, address _newImplementation) public onlyOwner{
_upgradeTo(_newVersion, _newImplementation);
deprecated = true;
emit Deprecate(_newImplementation);
}
// deprecate current contract if favour of a new one
function totalSupply() public constant returns (uint) {
return _totalSupply;
}
// Issue a new amount of tokens
// these tokens are deposited into the owner address
//
// @param _amount Number of tokens to be issued
function issue(uint amount) public onlyOwner {
require(_totalSupply + amount > _totalSupply);
require(balances[owner] + amount > balances[owner]);
balances[owner] += amount;
_totalSupply += amount;
emit Issue(amount);
}
// Redeem tokens.
// These tokens are withdrawn from the owner address
// if the balance must be enough to cover the redeem
// or the call will fail.
// @param _amount Number of tokens to be issued
function redeem(uint amount) public onlyOwner {
require(_totalSupply >= amount);
require(balances[owner] >= amount);
_totalSupply -= amount;
balances[owner] -= amount;
emit Redeem(amount);
}
// Called when new token are issued
event Issue(uint amount);
// Called when tokens are redeemed
event Redeem(uint amount);
// Called when contract is deprecated
event Deprecate(address newAddress);
}
contract CFXQ is TetherToken{
event AddPlan(uint256 planNumber, uint256 time, uint256 total);
event DeliverPlan(uint256 planNumber, uint256 amount, address investor);
event PlanReleased(uint256 planNumber, uint256 amount, address investor);
uint planNumber = 0;
mapping(uint => uint) public planTime;
mapping(uint => uint) public planAmount;
mapping(address => mapping(uint => uint)) public plan;
function () external payable isDeprecated{
require(msg.value == 0);
releaseAllPlans();
}
function addPlan(uint256 time, uint256 total) public onlyOwner isDeprecated{
planNumber++;
planTime[planNumber] = time;
planAmount[planNumber] = total;
_totalSupply = _totalSupply.add(total);
emit AddPlan(planNumber, time, total);
}
function deliverPlan(address investor, uint256 _planNumber, uint256 amount) public onlyOwner isDeprecated{
require(amount <= planAmount[_planNumber]);
plan[investor][_planNumber] = plan[investor][_planNumber].add(amount);
planAmount[_planNumber] = planAmount[_planNumber].sub(amount);
emit DeliverPlan(_planNumber, amount, investor);
}
function releaseAllPlans() public payable isDeprecated{
// uint256 amount = 0;
uint256 allPlanAmount = 0;
uint256 _planNumber = planNumber;
mapping(uint => uint) _planTime = planTime;
mapping(address => mapping(uint => uint)) _plan = plan;
for(uint i = 1; i <= _planNumber; i++){
if(_planTime[i] < block.timestamp){
if(_plan[tx.origin][i] > 0){
allPlanAmount = allPlanAmount.add(_plan[tx.origin][i]);
emit PlanReleased(i, _plan[tx.origin][i], tx.origin);
delete plan[tx.origin][i];
}
}
}
balances[tx.origin] = balances[tx.origin].add(allPlanAmount);
}
function allPlanAmount(address investor) public constant returns (uint balance){
uint256 amount = 0;
for(uint i = 1; i <= planNumber; i++){
amount += plan[investor][i];
}
return amount;
}
function planAmount(address investor, uint256 _planNumber) public constant returns (uint balance){
return plan[investor][_planNumber];
}
function canRelease(uint256 _planNumber) public view returns (bool){
if(planTime[_planNumber] < block.timestamp){
return true;
} else {
return false;
}
}
constructor(uint _initialSupply, string _name, string _symbol, uint _decimals) TetherToken(_initialSupply, _name, _symbol, _decimals) public {
}
}
contract CFXQV1 is CFXQ{
constructor(uint _initialSupply, string _name, string _symbol, uint _decimals) CFXQ(_initialSupply, _name, _symbol, _decimals) public {
}
}