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Proof.sol
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Proof.sol
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/*
This file is part of the PROOF Contract.
The PROOF Contract is free software: you can redistribute it and/or
modify it under the terms of the GNU lesser General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
The PROOF Contract is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU lesser General Public License for more details.
You should have received a copy of the GNU lesser General Public License
along with the PROOF Contract. If not, see <http://www.gnu.org/licenses/>.
*/
pragma solidity ^0.4.0;
contract owned {
address public owner;
function owned() payable {
owner = msg.sender;
}
modifier onlyOwner {
require(owner == msg.sender);
_;
}
function changeOwner(address _owner) onlyOwner public {
require(_owner != 0);
owner = _owner;
}
}
contract Crowdsale is owned {
uint256 public totalSupply;
mapping (address => uint256) public balanceOf;
uint public etherPrice;
address public crowdsaleOwner;
uint public totalLimitUSD;
uint public minimalSuccessUSD;
uint public collectedUSD;
enum State { Disabled, PreICO, CompletePreICO, Crowdsale, Enabled, Migration }
event NewState(State state);
State public state = State.Disabled;
uint public crowdsaleStartTime;
uint public crowdsaleFinishTime;
modifier enabledState {
require(state == State.Enabled);
_;
}
modifier enabledOrMigrationState {
require(state == State.Enabled || state == State.Migration);
_;
}
struct Investor {
uint256 amountTokens;
uint amountWei;
}
mapping (address => Investor) public investors;
mapping (uint => address) public investorsIter;
uint public numberOfInvestors;
function () payable {
require(state == State.PreICO || state == State.Crowdsale);
uint256 tokensPerUSD = 0;
if (state == State.PreICO) {
tokensPerUSD = 125;
} else if (state == State.Crowdsale) {
if (now < crowdsaleStartTime + 1 days) {
tokensPerUSD = 115;
} else if (now < crowdsaleStartTime + 1 weeks) {
tokensPerUSD = 110;
} else {
tokensPerUSD = 100;
}
}
if (tokensPerUSD > 0) {
uint valueWei = msg.value;
uint valueUSD = valueWei * etherPrice / 1000000000000000000;
if (collectedUSD + valueUSD > totalLimitUSD) { // don't need so much ether
valueUSD = totalLimitUSD - collectedUSD;
valueWei = valueUSD * 1000000000000000000 / etherPrice;
msg.sender.transfer(msg.value - valueWei);
collectedUSD = totalLimitUSD; // to be sure!
} else {
collectedUSD += valueUSD;
}
uint256 tokens = tokensPerUSD * valueUSD;
require(balanceOf[msg.sender] + tokens > balanceOf[msg.sender]); // overflow
require(tokens > 0);
Investor storage inv = investors[msg.sender];
if (inv.amountWei == 0) { // new investor
investorsIter[numberOfInvestors++] = msg.sender;
}
inv.amountTokens += tokens;
inv.amountWei += valueWei;
balanceOf[msg.sender] += tokens;
totalSupply += tokens;
}
}
function startTokensSale(address _crowdsaleOwner, uint _etherPrice) public onlyOwner {
require(state == State.Disabled || state == State.CompletePreICO);
crowdsaleStartTime = now;
crowdsaleOwner = _crowdsaleOwner;
etherPrice = _etherPrice;
delete numberOfInvestors;
delete collectedUSD;
if (state == State.Disabled) {
crowdsaleFinishTime = now + 14 days;
state = State.PreICO;
totalLimitUSD = 300000;
minimalSuccessUSD = 300000;
} else {
crowdsaleFinishTime = now + 30 days;
state = State.Crowdsale;
totalLimitUSD = 5200000;
minimalSuccessUSD = 3600000;
}
NewState(state);
}
function timeToFinishTokensSale() public constant returns(uint t) {
require(state == State.PreICO || state == State.Crowdsale);
if (now > crowdsaleFinishTime) {
t = 0;
} else {
t = crowdsaleFinishTime - now;
}
}
function finishTokensSale(uint _investorsToProcess) public {
require(state == State.PreICO || state == State.Crowdsale);
require(now >= crowdsaleFinishTime || collectedUSD == totalLimitUSD);
if (collectedUSD < minimalSuccessUSD) {
// Investors can get their ether calling withdrawBack() function
while (_investorsToProcess > 0 && numberOfInvestors > 0) {
address addr = investorsIter[--numberOfInvestors];
Investor memory inv = investors[addr];
balanceOf[addr] -= inv.amountTokens;
totalSupply -= inv.amountTokens;
--_investorsToProcess;
delete investorsIter[numberOfInvestors];
}
if (numberOfInvestors > 0) {
return;
}
if (state == State.PreICO) {
state = State.Disabled;
} else {
state = State.CompletePreICO;
}
} else {
while (_investorsToProcess > 0 && numberOfInvestors > 0) {
--numberOfInvestors;
--_investorsToProcess;
delete investors[investorsIter[numberOfInvestors]];
delete investorsIter[numberOfInvestors];
}
if (numberOfInvestors > 0) {
return;
}
if (state == State.PreICO) {
if (!crowdsaleOwner.send(this.balance)) throw;
state = State.CompletePreICO;
} else {
if (!crowdsaleOwner.send(1500000 * 1000000000000000000 / etherPrice)) throw;
// Create additional tokens for owner (28% of complete totalSupply)
balanceOf[owner] = totalSupply * 28 / 72;
totalSupply += totalSupply * 28 / 72;
state = State.Enabled;
}
}
NewState(state);
}
// This function must be called by token holder in case of crowdsale failed
function withdrawBack() public {
require(state == State.Disabled || state == State.CompletePreICO);
uint value = investors[msg.sender].amountWei;
if (value > 0) {
delete investors[msg.sender];
msg.sender.transfer(value);
}
}
}
contract Token is Crowdsale {
string public standard = 'Token 0.1';
string public name = 'PROOF';
string public symbol = "PF";
uint8 public decimals = 0;
modifier onlyTokenHolders {
require(balanceOf[msg.sender] != 0);
_;
}
mapping (address => mapping (address => uint256)) public allowed;
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function Token() payable Crowdsale() {}
function transfer(address _to, uint256 _value) public enabledState {
require(balanceOf[msg.sender] >= _value);
require(balanceOf[_to] + _value >= balanceOf[_to]); // overflow
balanceOf[msg.sender] -= _value;
balanceOf[_to] += _value;
Transfer(msg.sender, _to, _value);
}
function transferFrom(address _from, address _to, uint256 _value) public enabledState {
require(balanceOf[_from] >= _value);
require(balanceOf[_to] + _value >= balanceOf[_to]); // overflow
require(allowed[_from][msg.sender] >= _value);
balanceOf[_from] -= _value;
balanceOf[_to] += _value;
allowed[_from][msg.sender] -= _value;
Transfer(_from, _to, _value);
}
function approve(address _spender, uint256 _value) public enabledState {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
}
function allowance(address _owner, address _spender) public constant enabledState
returns (uint256 remaining) {
return allowed[_owner][_spender];
}
}
contract MigrationAgent {
function migrateFrom(address _from, uint256 _value);
}
contract TokenMigration is Token {
address public migrationAgent;
uint256 public totalMigrated;
event Migrate(address indexed from, address indexed to, uint256 value);
function TokenMigration() payable Token() {}
// Migrate _value of tokens to the new token contract
function migrate(uint256 _value) external {
require(state == State.Migration);
require(migrationAgent != 0);
require(_value != 0);
require(_value <= balanceOf[msg.sender]);
balanceOf[msg.sender] -= _value;
totalSupply -= _value;
totalMigrated += _value;
MigrationAgent(migrationAgent).migrateFrom(msg.sender, _value);
Migrate(msg.sender, migrationAgent, _value);
}
function setMigrationAgent(address _agent) external onlyOwner {
require(migrationAgent == 0);
migrationAgent = _agent;
state = State.Migration;
}
}
contract ProofTeamVote is TokenMigration {
function ProofTeamVote() payable TokenMigration() {}
event VotingStarted(uint weiReqFund);
event Voted(address indexed voter, bool inSupport);
event VotingFinished(bool inSupport);
struct Vote {
bool inSupport;
bool voted;
}
uint public weiReqFund;
uint public votingDeadline;
uint public numberOfVotes;
uint public yea;
uint public nay;
mapping (address => Vote) public votes;
mapping (uint => address) public votesIter;
function startVoting(uint _weiReqFund) public enabledOrMigrationState onlyOwner {
require(weiReqFund == 0 && _weiReqFund > 0 && _weiReqFund <= this.balance);
weiReqFund = _weiReqFund;
votingDeadline = now + 7 days;
delete yea;
delete nay;
VotingStarted(_weiReqFund);
}
function votingInfo() public constant enabledOrMigrationState
returns(uint _weiReqFund, uint _timeToFinish) {
_weiReqFund = weiReqFund;
if (votingDeadline <= now) {
_timeToFinish = 0;
} else {
_timeToFinish = votingDeadline - now;
}
}
function vote(bool _inSupport) public onlyTokenHolders enabledOrMigrationState
returns (uint voteId) {
require(votes[msg.sender].voted != true);
require(votingDeadline > now);
voteId = numberOfVotes++;
votesIter[voteId] = msg.sender;
votes[msg.sender] = Vote({inSupport: _inSupport, voted: true});
Voted(msg.sender, _inSupport);
return voteId;
}
function finishVoting(uint _votesToProcess) public enabledOrMigrationState
returns (bool _inSupport) {
require(now >= votingDeadline);
while (_votesToProcess > 0 && numberOfVotes > 0) {
address voter = votesIter[--numberOfVotes];
Vote memory v = votes[voter];
uint voteWeight = balanceOf[voter];
if (v.inSupport) {
yea += voteWeight;
} else {
nay += voteWeight;
}
delete votes[voter];
delete votesIter[numberOfVotes];
--_votesToProcess;
}
if (numberOfVotes > 0) {
_inSupport = false;
return;
}
_inSupport = (yea > nay);
uint weiForSend = weiReqFund;
delete weiReqFund;
delete votingDeadline;
delete numberOfVotes;
if (_inSupport) {
if (migrationAgent == 0) {
if (!owner.send(weiForSend)) throw;
} else {
if (!migrationAgent.send(this.balance)) throw;
}
}
VotingFinished(_inSupport);
}
}
contract ProofPublicVote is ProofTeamVote {
function ProofPublicVote() payable ProofTeamVote() {}
event Deployed(address indexed projectOwner, uint proofReqFund, string urlInfo);
event Voted(address indexed projectOwner, address indexed voter, bool inSupport);
event VotingFinished(address indexed projectOwner, bool inSupport);
struct Project {
uint proofReqFund;
string urlInfo;
uint votingDeadline;
uint numberOfVotes;
uint yea;
uint nay;
mapping (address => Vote) votes;
mapping (uint => address) votesIter;
}
mapping (address => Project) public projects;
function deployProject(uint _proofReqFund, string _urlInfo) public
onlyTokenHolders enabledOrMigrationState {
require(_proofReqFund > 0 && _proofReqFund <= balanceOf[this]);
require(_proofReqFund <= balanceOf[msg.sender] * 1000);
require(projects[msg.sender].proofReqFund == 0);
projects[msg.sender].proofReqFund = _proofReqFund;
projects[msg.sender].urlInfo = _urlInfo;
projects[msg.sender].votingDeadline = now + 7 days;
Deployed(msg.sender, _proofReqFund, _urlInfo);
}
function projectInfo(address _projectOwner) enabledOrMigrationState constant public
returns(uint _proofReqFund, string _urlInfo, uint _timeToFinish) {
_proofReqFund = projects[_projectOwner].proofReqFund;
_urlInfo = projects[_projectOwner].urlInfo;
if (projects[_projectOwner].votingDeadline <= now) {
_timeToFinish = 0;
} else {
_timeToFinish = projects[_projectOwner].votingDeadline - now;
}
}
function vote(address _projectOwner, bool _inSupport) public
onlyTokenHolders enabledOrMigrationState returns (uint voteId) {
Project storage p = projects[_projectOwner];
require(p.proofReqFund > 0);
require(p.votes[msg.sender].voted != true);
require(p.votingDeadline > now);
voteId = p.numberOfVotes++;
p.votesIter[voteId] = msg.sender;
p.votes[msg.sender] = Vote({inSupport: _inSupport, voted: true});
Voted(_projectOwner, msg.sender, _inSupport);
return voteId;
}
function finishVoting(address _projectOwner, uint _votesToProcess) public
enabledOrMigrationState returns (bool _inSupport) {
Project storage p = projects[_projectOwner];
require(p.proofReqFund > 0);
require(now >= p.votingDeadline && p.proofReqFund <= balanceOf[this]);
while (_votesToProcess > 0 && p.numberOfVotes > 0) {
address voter = p.votesIter[--p.numberOfVotes];
Vote memory v = p.votes[voter];
uint voteWeight = balanceOf[voter];
if (v.inSupport) {
p.yea += voteWeight;
} else {
p.nay += voteWeight;
}
delete p.votesIter[p.numberOfVotes];
delete p.votes[voter];
--_votesToProcess;
}
if (p.numberOfVotes > 0) {
_inSupport = false;
return;
}
_inSupport = (p.yea > p.nay);
uint proofReqFund = p.proofReqFund;
delete projects[_projectOwner];
if (_inSupport) {
require(balanceOf[_projectOwner] + proofReqFund >= balanceOf[_projectOwner]); // overflow
balanceOf[this] -= proofReqFund;
balanceOf[_projectOwner] += proofReqFund;
Transfer(this, _projectOwner, proofReqFund);
}
VotingFinished(_projectOwner, _inSupport);
}
}
contract Proof is ProofPublicVote {
struct Swype {
uint16 swype;
uint timestampSwype;
}
struct Video {
uint16 swype;
uint timestampSwype;
uint timestampHash;
address owner;
}
mapping (address => Swype) public swypes;
mapping (bytes32 => Video) public videos;
uint priceInTokens;
uint teamFee;
function Proof() payable ProofPublicVote() {}
function setPrice(uint _priceInTokens) public onlyOwner {
require(_priceInTokens >= 2);
teamFee = _priceInTokens / 10;
if (teamFee == 0) {
teamFee = 1;
}
priceInTokens = _priceInTokens - teamFee;
}
function swypeCode() public enabledState returns (uint16 _swype) {
bytes32 blockHash = block.blockhash(block.number - 1);
bytes32 shaTemp = sha3(msg.sender, blockHash);
_swype = uint16(uint256(shaTemp) % 65536);
swypes[msg.sender] = Swype({swype: _swype, timestampSwype: now});
}
function setHash(uint16 _swype, bytes32 _hash) public enabledState {
require(swypes[msg.sender].timestampSwype != 0);
require(swypes[msg.sender].swype == _swype);
transfer(owner, teamFee);
transfer(this, priceInTokens);
videos[_hash] = Video({swype: _swype, timestampSwype:swypes[msg.sender].timestampSwype,
timestampHash: now, owner: msg.sender});
delete swypes[msg.sender];
}
}