This commit is contained in:
alari 2017-08-07 17:13:21 +03:00
commit 81231c1086
13 changed files with 1129 additions and 0 deletions

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.gitignore vendored Normal file
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/build
/.idea
*.iml
/node_modules
1501*

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contracts/ConvertLib.sol Normal file
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pragma solidity ^0.4.4;
library ConvertLib{
function convert(uint amount,uint conversionRate) returns (uint convertedAmount)
{
return amount * conversionRate;
}
}

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pragma solidity ^0.4.13;
/**
* Math operations with safety checks
*/
library SafeMath {
function mul(uint256 a, uint256 b) internal returns (uint256) {
uint256 c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal 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 returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
function max64(uint64 a, uint64 b) internal constant returns (uint64) {
return a >= b ? a : b;
}
function min64(uint64 a, uint64 b) internal constant returns (uint64) {
return a < b ? a : b;
}
function max256(uint256 a, uint256 b) internal constant returns (uint256) {
return a >= b ? a : b;
}
function min256(uint256 a, uint256 b) internal constant returns (uint256) {
return a < b ? a : b;
}
}
/*
* Ownable
*
* Base contract with an owner.
* Provides onlyOwner modifier, which prevents function from running if it is called by anyone other than the owner.
*/
contract Ownable {
address public owner;
function Ownable() {
owner = msg.sender;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
function transferOwnership(address newOwner) onlyOwner {
if (newOwner != address(0)) {
owner = newOwner;
}
}
}
/*
* Haltable
*
* Abstract contract that allows children to implement an
* emergency stop mechanism. Differs from Pausable by causing a throw when in halt mode.
*
*
* Originally envisioned in FirstBlood ICO contract.
*/
contract Haltable is Ownable {
bool public halted;
modifier stopInEmergency {
require(!halted);
_;
}
modifier onlyInEmergency {
require(halted);
_;
}
// called by the owner on emergency, triggers stopped state
function halt() external onlyOwner {
halted = true;
}
// called by the owner on end of emergency, returns to normal state
function unhalt() external onlyOwner onlyInEmergency {
halted = false;
}
}
contract FluencePreSale is Haltable {
using SafeMath for uint;
using SafeMath for uint256;
mapping (address => uint256) public balanceOf;
/*/
* Constants
/*/
string public constant name = "Fluence Presale Token";
string public constant symbol = "FPT";
uint public constant decimals = 18;
// 6% of tokens
uint256 public constant SUPPLY_LIMIT = 6000000;
// What is given to contributors, <= SUPPLY_LIMIT
uint256 public totalSupply;
// If soft cap is not reached, refund process is started
uint256 public softCap = 1000 ether;
// Basic price
uint public constant basicTokensPerEth = 1500;
// Advanced price
uint256 public constant advancedThreshold = 5 ether;
uint public constant advancedTokensPerEth = 2250;
// Expert price
uint256 public constant expertThreshold = 100 ether;
uint public constant expertTokensPerEth = 3000;
// As we have different prices for different amounts,
// we keep a mapping of contributions to make refund
mapping (address => uint256) public etherContributions;
// Max balance of the contract
uint256 public etherCollected;
// Address to withdraw ether to
address public beneficiary;
uint public startAtBlock;
uint public endAtBlock;
event GoalReached(uint amountRaised);
event SoftCapReached(uint softCap);
event NewContribution(address indexed holder, uint256 tokenAmount, uint256 etherAmount);
event Refunded(address indexed holder, uint256 amount);
// If soft cap is reached, withdraw should be available
modifier softCapReached {
require(etherCollected >= softCap);
_;
}
modifier duringPresale {
require(block.number >= startAtBlock && block.number <= endAtBlock);
_;
}
modifier duringRefund {
require(block.number > endAtBlock && etherCollected < softCap && this.balance > 0);
_;
}
function FluencePreSale(uint _startAtBlock, uint _endAtBlock){
require(_startAtBlock > 0 && _endAtBlock > 0);
beneficiary = msg.sender;
startAtBlock = _startAtBlock;
endAtBlock = _endAtBlock;
}
function setBeneficiary(address to) onlyOwner external {
require(to != 0x0);
beneficiary = to;
}
function withdraw() onlyOwner softCapReached external {
require(this.balance > 0);
beneficiary.transfer(this.balance);
}
function contribute(address _address) private stopInEmergency duringPresale {
require(msg.value >= 0.5 ether); // Minimal contribution
uint256 tokensToIssue;
if(msg.value >= expertThreshold) {
tokensToIssue = (msg.value / 1 ether).mul(expertTokensPerEth);
} else if(msg.value >= advancedThreshold) {
tokensToIssue = (msg.value / 1 ether).mul(advancedTokensPerEth);
} else {
tokensToIssue = (msg.value / 1 ether).mul(basicTokensPerEth);
}
totalSupply = totalSupply.add(tokensToIssue);
require(totalSupply <= SUPPLY_LIMIT);
etherContributions[_address] = etherContributions[_address].add(msg.value);
uint collectedBefore = etherCollected;
etherCollected = etherCollected.add(msg.value);
balanceOf[_address] = balanceOf[_address].add(tokensToIssue);
NewContribution(_address, tokensToIssue, msg.value);
if(totalSupply == SUPPLY_LIMIT) {
GoalReached(etherCollected);
}
if(etherCollected >= softCap && collectedBefore < softCap) {
SoftCapReached(etherCollected);
}
}
function() external payable {
contribute(msg.sender);
}
function refund() stopInEmergency duringRefund external {
uint tokensToBurn = balanceOf[msg.sender];
require(tokensToBurn > 0); // Sender must have tokens
balanceOf[msg.sender] = 0; // Burn
uint amount = etherContributions[msg.sender]; // User contribution amount
require(amount > 0); // Amount must be positive -- refund is not processed yet
etherContributions[msg.sender] = 0; // Clear state
// Reduce counters
etherCollected = etherCollected.sub(amount);
totalSupply = totalSupply.sub(balanceOf[msg.sender]);
msg.sender.transfer(amount); // Process refund. In case of error, it will be thrown
Refunded(msg.sender, amount);
}
}

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contracts/MetaCoin.sol Normal file
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pragma solidity ^0.4.4;
import "./ConvertLib.sol";
// This is just a simple example of a coin-like contract.
// It is not standards compatible and cannot be expected to talk to other
// coin/token contracts. If you want to create a standards-compliant
// token, see: https://github.com/ConsenSys/Tokens. Cheers!
contract MetaCoin {
mapping (address => uint) balances;
event Transfer(address indexed _from, address indexed _to, uint256 _value);
function MetaCoin() {
balances[tx.origin] = 10000;
}
function sendCoin(address receiver, uint amount) returns(bool sufficient) {
if (balances[msg.sender] < amount) return false;
balances[msg.sender] -= amount;
balances[receiver] += amount;
Transfer(msg.sender, receiver, amount);
return true;
}
function getBalanceInEth(address addr) returns(uint){
return ConvertLib.convert(getBalance(addr),2);
}
function getBalance(address addr) returns(uint) {
return balances[addr];
}
}

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contracts/Migrations.sol Normal file
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pragma solidity ^0.4.4;
contract Migrations {
address public owner;
uint public last_completed_migration;
modifier restricted() {
if (msg.sender == owner) _;
}
function Migrations() {
owner = msg.sender;
}
function setCompleted(uint completed) restricted {
last_completed_migration = completed;
}
function upgrade(address new_address) restricted {
Migrations upgraded = Migrations(new_address);
upgraded.setCompleted(last_completed_migration);
}
}

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var Migrations = artifacts.require("./Migrations.sol");
module.exports = function(deployer) {
deployer.deploy(Migrations);
};

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var FluencePreSale = artifacts.require("./FluencePreSale.sol");
module.exports = function(deployer) {
deployer.deploy(FluencePreSale, 673000, 674000);
};

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}

11
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{
"name": "smartcontract",
"version": "0.0.0",
"private": true,
"scripts": {
"run": "truffle build"
},
"dependencies": {
"truffle": "^3.4.7"
}
}

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pragma solidity ^0.4.2;
import "truffle/Assert.sol";
import "truffle/DeployedAddresses.sol";
import "../contracts/FluencePreSale.sol";
contract TestFluencePreSale {
uint public initialBalance = 10 ether;
function testSoftCap() {
FluencePreSale fluence = FluencePreSale(DeployedAddresses.FluencePreSale());
uint expected = 1000 ether;
Assert.equal(fluence.softCap(), expected, "Soft cap must be 1000 ether");
}
function testContribute() {
FluencePreSale fluence = new FluencePreSale(0, 100000000000);
Assert.equal(fluence.owner(), tx.origin, "Owner must be set to sender");
fluence.transfer.value(1 ether).gas(210000)();
assert(fluence.balanceOf(tx.origin) == 1500);
Assert.equal(fluence.balanceOf(tx.origin), 1500, "User should get 1500 FPT for 1 eth");
}
}

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pragma solidity ^0.4.2;
import "truffle/Assert.sol";
import "truffle/DeployedAddresses.sol";
import "../contracts/MetaCoin.sol";
contract TestMetacoin {
function testInitialBalanceUsingDeployedContract() {
MetaCoin meta = new MetaCoin();
uint expected = 10000;
Assert.equal(meta.getBalance(tx.origin), expected, "Owner should have 10000 MetaCoin initially");
}
function testInitialBalanceWithNewMetaCoin() {
MetaCoin meta = new MetaCoin();
uint expected = 10000;
Assert.equal(meta.getBalance(tx.origin), expected, "Owner should have 10000 MetaCoin initially");
}
}

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test/metacoin.js Normal file
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var MetaCoin = artifacts.require("./MetaCoin.sol");
contract('MetaCoin', function(accounts) {
it("should put 10000 MetaCoin in the first account", function() {
return MetaCoin.deployed().then(function(instance) {
return instance.getBalance.call(accounts[0]);
}).then(function(balance) {
assert.equal(balance.valueOf(), 10000, "10000 wasn't in the first account");
});
});
it("should call a function that depends on a linked library", function() {
var meta;
var metaCoinBalance;
var metaCoinEthBalance;
return MetaCoin.deployed().then(function(instance) {
meta = instance;
return meta.getBalance.call(accounts[0]);
}).then(function(outCoinBalance) {
metaCoinBalance = outCoinBalance.toNumber();
return meta.getBalanceInEth.call(accounts[0]);
}).then(function(outCoinBalanceEth) {
metaCoinEthBalance = outCoinBalanceEth.toNumber();
}).then(function() {
assert.equal(metaCoinEthBalance, 2 * metaCoinBalance, "Library function returned unexpected function, linkage may be broken");
});
});
it("should send coin correctly", function() {
var meta;
// Get initial balances of first and second account.
var account_one = accounts[0];
var account_two = accounts[1];
var account_one_starting_balance;
var account_two_starting_balance;
var account_one_ending_balance;
var account_two_ending_balance;
var amount = 10;
return MetaCoin.deployed().then(function(instance) {
meta = instance;
return meta.getBalance.call(account_one);
}).then(function(balance) {
account_one_starting_balance = balance.toNumber();
return meta.getBalance.call(account_two);
}).then(function(balance) {
account_two_starting_balance = balance.toNumber();
return meta.sendCoin(account_two, amount, {from: account_one});
}).then(function() {
return meta.getBalance.call(account_one);
}).then(function(balance) {
account_one_ending_balance = balance.toNumber();
return meta.getBalance.call(account_two);
}).then(function(balance) {
account_two_ending_balance = balance.toNumber();
assert.equal(account_one_ending_balance, account_one_starting_balance - amount, "Amount wasn't correctly taken from the sender");
assert.equal(account_two_ending_balance, account_two_starting_balance + amount, "Amount wasn't correctly sent to the receiver");
});
});
});

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truffle.js Normal file
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module.exports = {
networks: {
development: {
host: "localhost",
port: 8545,
network_id: "*" // Match any network id
}
}
};