pragma solidity ^0.4.18;
// ----------------------------------------------------------------------------
// Safe maths
// ----------------------------------------------------------------------------
contract SafeMath {
function safeAdd(uint a, uint b) internal pure returns (uint c) {
c = a + b;
require(c >= a);
}
function safeSub(uint a, uint b) internal pure returns (uint c) {
require(b <= a);
c = a - b;
}
function safeMul(uint a, uint b) internal pure returns (uint c) {
c = a * b;
require(a == 0 || c / a == b);
}
function safeDiv(uint a, uint b) internal pure returns (uint c) {
require(b > 0);
c = a / b;
}
}
// ----------------------------------------------------------------------------
// ERC Token Standard #20 Interface
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// ----------------------------------------------------------------------------
contract ERC20Interface {
function totalSupply() public view returns (uint);
function balanceOf(address tokenOwner) public view returns (uint balance);
function allowance(address tokenOwner, address spender) public view returns (uint remaining);
function transfer(address to, uint tokens) public returns (bool success);
function approve(address spender, uint tokens) public returns (bool success);
function transferFrom(address from, address to, uint tokens) public returns (bool success);
event Transfer(address indexed from, address indexed to, uint tokens);
event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}
// ----------------------------------------------------------------------------
// Owned contract
// ----------------------------------------------------------------------------
contract Owned {
address public owner;
address public newOwner;
event OwnershipTransferred(address indexed _from, address indexed _to);
function Owned() public {
owner = msg.sender;
}
modifier onlyOwner {
require(msg.sender == owner);
_;
}
function transferOwnership(address _newOwner) public onlyOwner {
var oldOwner = owner;
owner = _newOwner;
OwnershipTransferred(oldOwner, owner);
}
}
// ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ----------------------------------------------------------------------------
contract CSLToken is ERC20Interface, Owned, SafeMath {
string public name = "EduShare";
string public symbol = "EDS";
uint8 public decimals = 18;
uint public _totalSupply;
uint public startDate;
bool public isLocked;
address[] private vaultList;
mapping(address => uint) vaultAmount;
mapping(address => uint) vaultReleaseTime;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
function CSLToken(address multisig, uint tokens) public {
_totalSupply = tokens;
balances[multisig] = safeAdd(balances[multisig], tokens);
isLocked = false;
}
modifier isNotLocked {
require(!isLocked);
_;
}
function setIsLocked(bool _isLocked) public onlyOwner{
isLocked = _isLocked;
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account `tokenOwner`
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to `to` account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public isNotLocked returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for `spender` to transferFrom(...) `tokens`
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
Approval(msg.sender, spender, tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer `tokens` from the `from` account to the `to` account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the `from` account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public isNotLocked returns (bool success) {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
Transfer(from, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
function () external payable {
revert();
}
// ------------------------------------------------------------------------
// INCREASE token supply
// ------------------------------------------------------------------------
function mint(address to, uint value) public onlyOwner returns (bool) {
require(value > 0);
_totalSupply = safeAdd(_totalSupply, value);
balances[to] = safeAdd(balances[to], value);
Transfer(0, to, value);
return true;
}
function _burn(address account, uint256 amount) internal {
require(account != address(0));
balances[account] = safeSub(balances[account], amount);
_totalSupply = safeSub(_totalSupply, amount);
Transfer(account, address(0), amount);
}
// ------------------------------------------------------------------------
// DECREASE token supply
// ------------------------------------------------------------------------
function burn(uint amount) public {
require(amount > 0);
_burn(msg.sender, amount);
}
// ------------------------------------------------------------------------
// DECREASE token supply
// ------------------------------------------------------------------------
function burnFrom(address from, uint amount) public {
require(allowance(from, msg.sender) >= amount);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], amount);
_burn(from, amount);
}
function tokenToVault(address to, uint amount, uint releastTime) public onlyOwner {
require(to != address(0x0));
vaultAmount[to] = safeAdd(vaultAmount[to], amount);
vaultReleaseTime[to] = releastTime;
_totalSupply = safeAdd(_totalSupply, amount);
balances[address(this)] = safeAdd(balances[address(this)], amount);
vaultList.push(to);
}
function releaseToken() public {
require(vaultAmount[msg.sender] > 0);
require(block.timestamp >= vaultReleaseTime[msg.sender]);
require(balances[address(this)] >= vaultAmount[msg.sender]);
balances[msg.sender] = safeAdd(balances[msg.sender], vaultAmount[msg.sender]);
balances[address(this)] = safeSub(balances[address(this)], vaultAmount[msg.sender]);
vaultAmount[msg.sender] = 0;
_removeFromVault(msg.sender);
}
function releateTokenTo(address to) public onlyOwner {
require(vaultAmount[to] > 0);
require(block.timestamp >= vaultReleaseTime[to]);
require(balances[address(this)] >= vaultAmount[to]);
balances[to] = safeAdd(balances[to], vaultAmount[to]);
balances[address(this)] = safeSub(balances[address(this)], vaultAmount[to]);
vaultAmount[to] = 0;
_removeFromVault(to);
}
function _removeFromVault(address addr) internal {
uint index;
uint length = vaultList.length;
for (index = 0; index < length; index++){
if (vaultList[index] == addr) {
break;
}
}
/// There is no use-case for inexistent
assert(index < length);
/// Remove out of list and map
if ( index + 1 != length ) {
/// Move the last to the current
vaultList[index] = vaultList[length - 1];
}
delete vaultList[length - 1];
vaultList.length--;
delete vaultReleaseTime[addr];
delete vaultAmount[addr];
}
function getVaultAmountFrom(address from) public view onlyOwner returns (uint amount) {
return vaultAmount[from];
}
function getVaultAmount() public view returns (uint amount) {
return vaultAmount[msg.sender];
}
function getVaultReleaseTimeFrom(address from) public view onlyOwner returns (uint releaseTime) {
return vaultReleaseTime[from];
}
function getVaultReleaseTime() public view returns (uint releaseTime) {
return vaultReleaseTime[msg.sender];
}
function getVaultList() public view onlyOwner returns (address[] list) {
return vaultList;
}
}
{
"compilationTarget": {
"CSLToken.sol": "CSLToken"
},
"libraries": {},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}
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{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"tokens","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"tokenOwner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"tokens","type":"uint256"}],"name":"Approval","type":"event"}]