Клиенты и примеры

pragma solidity ^0.4.11;

library SafeMath {
	function mul(uint256 a, uint256 b) internal constant returns (uint256) {
		uint256 c = a * b;
		assert(a == 0 || c / a == b);
		return c;
	}

	function div(uint256 a, uint256 b) internal constant returns (uint256) {
		uint256 c = a / b;
		return c;
	}

	function sub(uint256 a, uint256 b) internal constant returns (uint256) {
		assert(b <= a);
		return a - b;
	}

	function add(uint256 a, uint256 b) internal constant returns (uint256) {
		uint256 c = a + b;
		assert(c >= a);
		return c;
	}
}

contract ERC20Basic {
	uint256 public totalSupply;
	function balanceOf(address who) constant returns (uint256);
	function transfer(address to, uint256 value) returns (bool);
	event Transfer(address indexed from, address indexed to, uint256 value);
}


contract Ownable {
	address public owner;


	event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

	function Ownable() {
		owner = msg.sender;
	}

	modifier onlyOwner() {
		require(msg.sender == owner);
		_;
	}

	function transferOwnership(address newOwner) onlyOwner {
		require(newOwner != address(0));
		OwnershipTransferred(owner, newOwner);
		owner = newOwner;
	}

}

contract ERC20 is ERC20Basic {
	function allowance(address owner, address spender) constant returns (uint256);
	function transferFrom(address from, address to, uint256 value) returns (bool);
	function approve(address spender, uint256 value) returns (bool);
	event Approval(address indexed owner, address indexed spender, uint256 value);
}

contract BasicToken is ERC20Basic {
	using SafeMath for uint256;

	mapping(address => uint256) balances;

	function transfer(address _to, uint256 _value) returns (bool) {
		require(_to != address(0));

		balances[msg.sender] = balances[msg.sender].sub(_value);
		balances[_to] = balances[_to].add(_value);
		Transfer(msg.sender, _to, _value);
		return true;
	}

	function balanceOf(address _owner) constant returns (uint256 balance) {
		return balances[_owner];
	}

}

contract StandardToken is ERC20, BasicToken {

	mapping (address => mapping (address => uint256)) allowed;

	function transferFrom(address _from, address _to, uint256 _value) returns (bool) {
		require(_to != address(0));

		var _allowance = allowed[_from][msg.sender];

		balances[_from] = balances[_from].sub(_value);
		balances[_to] = balances[_to].add(_value);
		allowed[_from][msg.sender] = _allowance.sub(_value);
		Transfer(_from, _to, _value);
		return true;
	}

	function approve(address _spender, uint256 _value) returns (bool) {

		require((_value == 0) || (allowed[msg.sender][_spender] == 0));

		allowed[msg.sender][_spender] = _value;
		Approval(msg.sender, _spender, _value);
		return true;
	}

	function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
		return allowed[_owner][_spender];
	}


	function increaseApproval (address _spender, uint _addedValue)
		returns (bool success) {
		allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
		Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
		return true;
	}

	function decreaseApproval (address _spender, uint _subtractedValue)
		returns (bool success) {
		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;
	}

}


contract MintableToken is StandardToken, Ownable {
	event Mint(address indexed to, uint256 amount);
	event MintFinished();

	bool public mintingFinished = false;


	modifier canMint() {
		require(!mintingFinished);
		_;
	}


	function mint(address _to, uint256 _amount) onlyOwner canMint returns (bool) {
		totalSupply = totalSupply.add(_amount);
		balances[_to] = balances[_to].add(_amount);
		Mint(_to, _amount);
		Transfer(0x0, _to, _amount);
		return true;
	}

	function finishMinting() onlyOwner returns (bool) {
		mintingFinished = true;
		MintFinished();
		return true;
	}
}

contract TestToken is MintableToken {
	string public constant name = "TestToken";
	string public constant symbol = "TT";
	uint8 public constant decimals = 18;
}

contract TESTCrowdsale is Ownable {

	using SafeMath for uint256;

	TestToken public token;

	uint256 public startTime;
	uint256 public endTime;

	address public wallet;

	uint256 public rate;

	uint256 public weiRaised;

	event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);

	function TESTCrowdsale(uint256 _startTime, uint256 _endTime, uint256 _rate, address _wallet) {
		// require(_startTime >= now);
		require(_endTime >= _startTime);
		require(_rate > 0);
		require(_wallet != 0x0);

		token = createTokenContract();
		startTime = _startTime;
		endTime = _endTime;
		rate = _rate;
		wallet = _wallet;
	}

	function createTokenContract() internal returns (TestToken) {
		return new TestToken();
	}

	function () payable {
		buyTokens(msg.sender);
	}

	function buyTokens(address beneficiary) payable {
		require(beneficiary != 0x0);
		require(validPurchase());

		uint256 weiAmount = msg.value;
		uint256 tokens = weiAmount.mul(rate);
		weiRaised = weiRaised.add(weiAmount);

		token.mint(beneficiary, tokens);
		TokenPurchase(msg.sender, beneficiary, weiAmount, tokens);

		forwardFunds();
	}

	function forwardFunds() internal {
		wallet.transfer(msg.value);
	}

	function validPurchase() internal constant returns (bool) {
		bool withinPeriod = now >= startTime && now <= endTime;
		bool nonZeroPurchase = msg.value != 0;
		return withinPeriod && nonZeroPurchase;
	}

	function hasEnded() public constant returns (bool) {
		return now > endTime;
	}

	function closeAndTransferTokenOwnership() onlyOwner {
		require(now > endTime);
		// reserve for a team
		uint256 toMint = token.totalSupply().mul(15).div(100);
		token.mint(owner, toMint);
		// transfer of ownership
		token.transferOwnership(owner);
	}

}

pragma solidity ^0.4.11;

contract Biller {
		
		struct Bill {
				uint id;
				uint status;
				address reciever;
				uint summ;
				string clientData;
				string payers;
				address[] wallets;
				int[] amounts;
				int[] payStatuses;
		}
		
		event Closed(
				uint billId
		);
		
		event Saved(
				uint billId
		);
		
		event Dead(
				uint billId
		);
		
		mapping(uint => Bill) public bills;

		function Biller() {
		}
		
		function saveOpenBill(uint id, address reciever, uint summ, string clientData, string payers, address[] wallets, int[] amounts, int[] payStatuses) {
				bills[id] = Bill(id, 1, reciever, summ, clientData, payers, wallets, amounts, payStatuses);
				Saved(id);
		}
		
		function setClosing(uint id, address[] wallets, int[] amounts) public {
				bills[id].status = 2;
				bills[id].wallets = wallets;
				bills[id].amounts = amounts;
				Closed(id);
		}
		
		function getAmounts(uint id) public constant returns (int[])  {
				return bills[id].amounts;
		}
		
		function getWallets(uint id) public constant returns (address[])  {
				return bills[id].wallets;
		}
		
		function getPayStatuses(uint id) public constant returns (int[])  {
				return bills[id].payStatuses;
		}
		
		function confirm(uint id, address wallet) public {
				var bill = bills[id];
				for (uint i = 0; i < bill.wallets.length; i++) {
						if (wallet == bill.wallets[i]) {
								bills[id].payStatuses[i] = 2;
						}
				}
				
				int notPayedCount = 0;
				for (uint j = 0; j < bills[id].amounts.length; j++) {
						if(bills[id].amounts[j] != 0) {
								if(bills[id].payStatuses[j] != 2) {
										notPayedCount++;
								}
						}
				}
				
				if(notPayedCount == 0) {
						bills[id].status = 3;
						Dead(id);
				}
		}
		
		function getBillById(uint id) public constant returns (uint, address, uint, string, string) {
				var bill = bills[id];
				return (bill.status, bill.reciever, bill.summ, bill.clientData, bill.payers);
		}

}

pragma solidity ^0.4.11;

contract Payer {
		
		bytes32[] id;
		string name;
		uint frozeStart;
		uint period = 3000;
		uint balance = 0;
		
		event Frozen(address frozened, uint amount);
		event Unfrozen(address winner, uint amount);
		event Priveleged(bytes32[] id);
		
		function Payer(bytes32[] id, string name, uint balance) {
				id = id;
				name = name;
				balance = balance;
		}
		
		function frozePayer() {
				frozeStart = now;
		}
		
		function unfrozePayer() {
				require(now >= (frozeStart + period)); 
				Unfrozen(this, balance);
		}
		
		function addPriveleges() {
				Priveleged(id);
		}

}

contract BillFactory {
		
		
		event Dead(
				uint billId
		);
		
		Bill[] bills;

		function createBill (bytes32 name, uint summ) {
				Bill newBill = new Bill(name, summ);
				bills.push(newBill);
		} 
		
		// function getBill (uint i) public constant returns (uint, address, uint, string, string) {
		//     Bill bill = Bill(bills[i]);
		//     return (bill.status, bill.reciever, bill.summ, bill.clientData, bill.payers);
		// }
		
		string[] names;
		
		event Closed(
				uint billId
		);
		
		event Saved(
				uint billId
		);
		
		function saveOpenBill(uint id, address reciever, uint summ, string clientData, string payers, address[] wallets, int[] amounts, int[] payStatuses) {
				bills[id] = Bill(id, 1, reciever, summ, clientData, payers, wallets, amounts, payStatuses);
				Saved(id);
		}
		
		function setClosing(uint id, address[] wallets, int[] amounts) public {
				bills[id].status = 2;
				bills[id].wallets = wallets;
				bills[id].amounts = amounts;
				Closed(id);
		}
		
		function getAmounts(uint id) public constant returns (int[])  {
				return bills[id].amounts;
		}
		
		function getWallets(uint id) public constant returns (address[])  {
				return bills[id].wallets;
		}
		
		function getPayStatuses(uint id) public constant returns (int[])  {
				return bills[id].payStatuses;
		}
		
		function confirm(uint id, address wallet) public {
				
				var bill = bills[id];
				for (uint i = 0; i < bill.length; i++) {
						if (wallet == bill.wallets[i]) {
								bills[id].payStatuses[i] = 2;
						}
				}
				
				int notPayedCount = 0;
				for (uint j = 0; j < bill.length; j++) {
						if(bills[id].amounts[j] != 0) {
								if(bills[id].payStatuses[j] != 2) {
										notPayedCount++;
								}
						}
				}
				
				if(notPayedCount == 0) {
						bills[id].status = 3;
						Dead(id);
				}
		}
		
		
}

contract Bill {
		
		event Closed(
				uint billId
		);
		
		event Saved(
				uint billId
		);
		
		event Reserved(
				uint billId
		);
		
		uint id;
		uint status;
		address reciever;
		uint summ;
		string clientData;
		Payer[] payers;
		address[] wallets;
		int[] amounts;
		int[] payStatuses;

		function Bill (bytes32 name, uint summ) {
				name = name;
				summ = summ;
		}
		
		function closeBill() {
				Closed(id);
		}
		
		function reserveBill() {
				Reserved(id);
		}
		
}