├── .gitattributes ├── .gitignore ├── .solcover.js ├── migrations └── 1_initial_migration.js ├── .prettierrc ├── contracts ├── Migrations.sol ├── TestImplementations.sol └── InitialOffering │ └── HegicInitialOffering.sol ├── test ├── utils │ └── utils.js └── InitialOffering │ └── HegicInitialOffering.js ├── package.json ├── truffle-config.js └── LICENSE /.gitattributes: -------------------------------------------------------------------------------- 1 | *.sol linguist-language=Solidity 2 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | node_modules/ 2 | build 3 | coverage.json 4 | coverage 5 | -------------------------------------------------------------------------------- /.solcover.js: -------------------------------------------------------------------------------- 1 | module.exports = { 2 | skipFiles: ['Migrations.sol', 'TestImplementations.sol'], 3 | providerOptions: { 4 | default_balance_ether: 1000000 5 | } 6 | }; 7 | -------------------------------------------------------------------------------- /migrations/1_initial_migration.js: -------------------------------------------------------------------------------- 1 | const BN = web3.utils.BN 2 | const HEGIC = artifacts.require("FakeHEGIC") 3 | const InitialOffering = artifacts.require("HegicInitialOffering") 4 | 5 | module.exports = async function (deployer, network) { 6 | if (["development", "develop", 'soliditycoverage'].indexOf(network) >= 0) { 7 | await deployer.deploy(HEGIC) 8 | await deployer.deploy(InitialOffering, HEGIC.address) 9 | } else { 10 | throw Error(`wrong network ${network}`) 11 | } 12 | } 13 | -------------------------------------------------------------------------------- /.prettierrc: -------------------------------------------------------------------------------- 1 | { 2 | "printWidth": 80, 3 | "bracketSpacing": false, 4 | "semi": false, 5 | "explicitTypes": "preserve", 6 | "singleQuote": false, 7 | "tabWidth": 2, 8 | "overrides": [ 9 | { 10 | "files": "*.sol", 11 | "options": { 12 | "tabWidth": 4, 13 | "useTabs": false, 14 | "singleQuote": false, 15 | "explicitTypes": "always" 16 | } 17 | }, 18 | { 19 | "files": "*.md", 20 | "options": { 21 | "semi": false 22 | } 23 | } 24 | ] 25 | } 26 | -------------------------------------------------------------------------------- /contracts/Migrations.sol: -------------------------------------------------------------------------------- 1 | pragma solidity >=0.4.22 <0.7.0; 2 | 3 | /** 4 | * SPDX-License-Identifier: no-license 5 | */ 6 | 7 | 8 | contract Migrations { 9 | address public owner; 10 | uint256 public last_completed_migration; 11 | 12 | modifier restricted() { 13 | if (msg.sender == owner) _; 14 | } 15 | 16 | constructor() public { 17 | owner = msg.sender; 18 | } 19 | 20 | function setCompleted(uint256 completed) public restricted { 21 | last_completed_migration = completed; 22 | } 23 | 24 | function upgrade(address new_address) public restricted { 25 | Migrations upgraded = Migrations(new_address); 26 | upgraded.setCompleted(last_completed_migration); 27 | } 28 | } 29 | -------------------------------------------------------------------------------- /test/utils/utils.js: -------------------------------------------------------------------------------- 1 | 2 | const HEGICContract = artifacts.require("FakeHEGIC") 3 | const HegicIOContract = artifacts.require("HegicInitialOffering") 4 | const BN = web3.utils.BN 5 | 6 | 7 | const send = (method, params = []) => 8 | new Promise((resolve, reject) => 9 | web3.currentProvider.send({id: 0, jsonrpc: "2.0", method, params}, (err, x) => { 10 | if(err) reject(err) 11 | else resolve(x) 12 | }) 13 | ) 14 | 15 | const getIOContracts = () => Promise.all([ 16 | HegicIOContract.deployed(), 17 | HEGICContract.deployed() 18 | ]).then(([InitialOffering, HEGIC]) => ({InitialOffering, HEGIC})) 19 | 20 | const snapshot = () => send("evm_snapshot").then(x => x.result) 21 | const revert = (snap) => send("evm_revert", [snap]) 22 | const timeTravel = async (seconds) => { 23 | await send("evm_increaseTime", [seconds]) 24 | await send("evm_mine") 25 | } 26 | 27 | module.exports = { 28 | getIOContracts, 29 | timeTravel, snapshot, revert, 30 | toWei: (value) => web3.utils.toWei(value.toString(), "ether"), 31 | } 32 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "hegic-contracts", 3 | "version": "1.0.0", 4 | "description": "", 5 | "main": "truffle-config.js", 6 | "directories": { 7 | "test": "test" 8 | }, 9 | "scripts": { 10 | "start": "DEVMOD=true truffle console", 11 | "ganache": "ganache-cli -e 10000000 -m \"pull explain moon stereo foil tuna gospel tape battle come smooth fresh lizard culture review\"", 12 | "test": "truffle test", 13 | "coverage": "truffle run coverage", 14 | "lint": "prettier './**/*.js' './**/*.sol' './**/*.md' --write" 15 | }, 16 | "author": "", 17 | "license": "GPLv3", 18 | "devDependencies": { 19 | "@openzeppelin/test-environment": "^0.1.4", 20 | "@truffle/debug-utils": "^4.2.1", 21 | "@truffle/hdwallet-provider": "^1.0.40", 22 | "chai": "^4.2.0", 23 | "ganache-cli": "^6.9.1", 24 | "mocha": "^7.2.0", 25 | "prettier": "^2.0.5", 26 | "prettier-plugin-solidity": "^1.0.0-alpha.55", 27 | "solidity-coverage": "^0.7.10", 28 | "truffle": "^5.1.42", 29 | "truffle-flattener": "^1.4.4" 30 | }, 31 | "dependencies": { 32 | "@chainlink/contracts": "^0.0.8", 33 | "@openzeppelin/contracts": "^3.1.0", 34 | "@uniswap/v2-periphery": "^1.0.0-beta.0" 35 | } 36 | } 37 | -------------------------------------------------------------------------------- /contracts/TestImplementations.sol: -------------------------------------------------------------------------------- 1 | pragma solidity 0.6.12; 2 | 3 | /** 4 | * SPDX-License-Identifier: GPL-3.0-or-later 5 | * Hegic 6 | * Copyright (C) 2020 Hegic 7 | * 8 | * This program is free software: you can redistribute it and/or modify 9 | * it under the terms of the GNU General Public License as published by 10 | * the Free Software Foundation, either version 3 of the License, or 11 | * (at your option) any later version. 12 | * 13 | * This program is distributed in the hope that it will be useful, 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | * GNU General Public License for more details. 17 | * 18 | * You should have received a copy of the GNU General Public License 19 | * along with this program. If not, see . 20 | */ 21 | 22 | import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; 23 | import "@openzeppelin/contracts/access/Ownable.sol"; 24 | 25 | 26 | contract FakeHEGIC is ERC20("FakeHEGIC", "FAKEH") { 27 | function mintTo(address account, uint256 amount) public { 28 | _mint(account, amount); 29 | } 30 | 31 | function mint(uint256 amount) public { 32 | _mint(msg.sender, amount); 33 | } 34 | } 35 | -------------------------------------------------------------------------------- /truffle-config.js: -------------------------------------------------------------------------------- 1 | const HDWalletProvider = require("@truffle/hdwallet-provider") 2 | const infuraKey = process.env.INFURA_KEY 3 | const pk = [process.env.PK] 4 | 5 | module.exports = { 6 | networks: { 7 | development: { 8 | host: "127.0.0.1", // Localhost (default: none) 9 | port: 8545, // Standard Ethereum port (default: none) 10 | network_id: "*", // Any network (default: none) 11 | }, 12 | develop: { 13 | port: 8545, 14 | network_id: 20, 15 | accounts: 5, 16 | defaultEtherBalance: 500, 17 | blockTime: 3, 18 | }, 19 | rinkeby: { 20 | provider: () => 21 | new HDWalletProvider(pk, `https://rinkeby.infura.io/v3/${infuraKey}`), 22 | network_id: 4, // Ropsten's id 23 | // gas: 7000000, // Ropsten has a lower block limit than mainnet 24 | // confirmations: 1, // # of confs to wait between deployments. (default: 0) 25 | timeoutBlocks: 200, // # of blocks before a deployment times out (minimum/default: 50) 26 | skipDryRun: true, // Skip dry run before migrations? (default: false for public nets ) 27 | }, 28 | ropsten: { 29 | provider: () => 30 | new HDWalletProvider(pk, `https://ropsten.infura.io/v3/${infuraKey}`), 31 | network_id: 3, // Ropsten's id 32 | // gas: 7000000, // Ropsten has a lower block limit than mainnet 33 | // confirmations: 1, // # of confs to wait between deployments. (default: 0) 34 | timeoutBlocks: 200, // # of blocks before a deployment times out (minimum/default: 50) 35 | skipDryRun: true, // Skip dry run before migrations? (default: false for public nets ) 36 | }, 37 | main: { 38 | provider: () => 39 | new HDWalletProvider(pk, `https://mainnet.infura.io/v3/${infuraKey}`), 40 | network_id: 1, // Ropsten's id 41 | gasPrice: 33000000000, 42 | // gas: 7000000, // Ropsten has a lower block limit than mainnet 43 | // confirmations: 1, // # of confs to wait between deployments. (default: 0) 44 | timeoutBlocks: 200, // # of blocks before a deployment times out (minimum/default: 50) 45 | skipDryRun: true, // Skip dry run before migrations? (default: false for public nets ) 46 | }, 47 | }, 48 | plugins: ["solidity-coverage"], 49 | 50 | // Set default mocha options here, use special reporters etc. 51 | mocha: {slow: 10000}, 52 | 53 | // Configure your compilers 54 | compilers: { 55 | solc: { 56 | version: "0.6.12", // Fetch exact version from solc-bin (default: truffle's version) 57 | // docker: true, // Use "0.5.1" you've installed locally with docker (default: false) 58 | settings: { 59 | // See the solidity docs for advice about optimization and evmVersion 60 | optimizer: {enabled: true, runs: 200}, 61 | evmVersion: "istanbul", 62 | }, 63 | }, 64 | }, 65 | } 66 | -------------------------------------------------------------------------------- /contracts/InitialOffering/HegicInitialOffering.sol: -------------------------------------------------------------------------------- 1 | pragma solidity 0.6.12; 2 | 3 | /** 4 | * SPDX-License-Identifier: GPL-3.0-or-later 5 | * Hegic 6 | * Copyright (C) 2020 Hegic Protocol 7 | * 8 | * This program is free software: you can redistribute it and/or modify 9 | * it under the terms of the GNU General Public License as published by 10 | * the Free Software Foundation, either version 3 of the License, or 11 | * (at your option) any later version. 12 | * 13 | * This program is distributed in the hope that it will be useful, 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | * GNU General Public License for more details. 17 | * 18 | * You should have received a copy of the GNU General Public License 19 | * along with this program. If not, see . 20 | */ 21 | 22 | import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol"; 23 | import "@openzeppelin/contracts/access/Ownable.sol"; 24 | 25 | 26 | /** 27 | * @author 0mllwntrmt3 28 | * @title Hegic Initial Offering 29 | * @notice some description 30 | */ 31 | contract HegicInitialOffering is Ownable { 32 | using SafeERC20 for IERC20; 33 | using SafeMath for uint; 34 | 35 | event Claimed(address indexed account, uint userShare, uint hegicAmount); 36 | event Received(address indexed account, uint amount); 37 | 38 | uint public constant START = 1599678000; 39 | uint public constant END = START + 3 days; 40 | uint public constant TOTAL_DISTRIBUTE_AMOUNT = 90_360_300e18; 41 | uint public constant MINIMAL_PROVIDE_AMOUNT = 700 ether; 42 | uint public totalProvided = 0; 43 | mapping(address => uint) public provided; 44 | IERC20 public immutable HEGIC; 45 | 46 | constructor(IERC20 hegic) public { 47 | HEGIC = hegic; 48 | } 49 | 50 | receive() external payable { 51 | require(START <= block.timestamp, "The offering has not started yet"); 52 | require(block.timestamp <= END, "The offering has already ended"); 53 | totalProvided += msg.value; 54 | provided[msg.sender] += msg.value; 55 | emit Received(msg.sender, msg.value); 56 | } 57 | 58 | function claim() external { 59 | require(block.timestamp > END); 60 | require(provided[msg.sender] > 0); 61 | 62 | uint userShare = provided[msg.sender]; 63 | provided[msg.sender] = 0; 64 | 65 | if(totalProvided >= MINIMAL_PROVIDE_AMOUNT) { 66 | uint hegicAmount = TOTAL_DISTRIBUTE_AMOUNT 67 | .mul(userShare) 68 | .div(totalProvided); 69 | HEGIC.safeTransfer(msg.sender, hegicAmount); 70 | emit Claimed(msg.sender, userShare, hegicAmount); 71 | } else { 72 | msg.sender.transfer(userShare); 73 | emit Claimed(msg.sender, userShare, 0); 74 | } 75 | } 76 | 77 | function withdrawProvidedETH() external onlyOwner { 78 | require(END < block.timestamp, "The offering must be completed"); 79 | require( 80 | totalProvided >= MINIMAL_PROVIDE_AMOUNT, 81 | "The required amount has not been provided!" 82 | ); 83 | payable(owner()).transfer(address(this).balance); 84 | } 85 | 86 | function withdrawHEGIC() external onlyOwner { 87 | require(END < block.timestamp, "The offering must be completed"); 88 | require( 89 | totalProvided < MINIMAL_PROVIDE_AMOUNT, 90 | "The required amount has been provided!" 91 | ); 92 | HEGIC.safeTransfer(owner(), HEGIC.balanceOf(address(this))); 93 | } 94 | 95 | function withdrawUnclaimedHEGIC() external onlyOwner { 96 | require(END + 30 days < block.timestamp, "Withdrawal unavailable yet"); 97 | HEGIC.safeTransfer(owner(), HEGIC.balanceOf(address(this))); 98 | } 99 | } 100 | -------------------------------------------------------------------------------- /test/InitialOffering/HegicInitialOffering.js: -------------------------------------------------------------------------------- 1 | const {getIOContracts, toWei, timeTravel, snapshot, revert} = require("../utils/utils.js") 2 | const toBN = web3.utils.toBN 3 | const params = { 4 | BCSupply: toBN("753001000000000000000000000") 5 | } 6 | 7 | contract("InitialOffering", ([user1, user2, user3, user4]) => { 8 | const contract = getIOContracts() 9 | 10 | 11 | 12 | it("Should provide HEGIC to InitialOffering contract", async () => { 13 | const {InitialOffering, HEGIC} = await contract 14 | await HEGIC.mintTo(InitialOffering.address, params.BCSupply) 15 | }) 16 | 17 | it("Shouldn't withdraw HEGIC before start", async () => { 18 | const {InitialOffering} = await contract 19 | await InitialOffering.withdrawHEGIC().then( 20 | () => assert.fail("The owner withdraw HEGIC before start"), 21 | x => assert.equal(x.reason, "The offering must be completed") 22 | ) 23 | }) 24 | 25 | 26 | it("Shouldn't receive ETH before the offering", async () => { 27 | const {InitialOffering} = await contract 28 | await InitialOffering.sendTransaction({value:100000000, from:user1}) 29 | .then( 30 | () => assert.fail("ETH was provided"), 31 | x => assert.equal(x.reason, "The offering has not started yet") 32 | ) 33 | }) 34 | 35 | it("Should receive ETH during the offering", async () => { 36 | lastSnapshot = await snapshot() 37 | try { 38 | const {InitialOffering} = await contract 39 | const start = await InitialOffering.START() 40 | const delta = parseInt(start - Date.now() / 1000) + 1 41 | 42 | await timeTravel(delta) 43 | await InitialOffering.sendTransaction({value:100000000, from:user1}) 44 | .catch(() => assert.fail("ETH provide was reverted")) 45 | await timeTravel(24*3600) 46 | await InitialOffering.sendTransaction({value:100000000, from:user1}) 47 | .catch(() => assert.fail("ETH provide was reverted")) 48 | await timeTravel(24*3600) 49 | await InitialOffering.sendTransaction({value:100000000, from:user1}) 50 | .catch(() => assert.fail("ETH provide was reverted")) 51 | await timeTravel(24*3600-1) 52 | await InitialOffering.sendTransaction({value:100000000, from:user1}) 53 | .catch(() => assert.fail("ETH provide was reverted during the offering")) 54 | } finally { 55 | await revert(lastSnapshot) 56 | } 57 | }) 58 | 59 | it("Shouldn't receive ETH after the offering", async () => { 60 | lastSnapshot = await snapshot() 61 | try { 62 | const {InitialOffering} = await contract 63 | const start = await InitialOffering.START() 64 | const delta = parseInt(start - Date.now() / 1000) + 3*24*3600 + 2 65 | 66 | await timeTravel(delta) 67 | await InitialOffering.sendTransaction({value:100000000, from:user1}) 68 | .then( 69 | () => assert.fail("ETH was provided"), 70 | x => assert.equal(x.reason, "The offering has already ended") 71 | ) 72 | } finally { 73 | await revert(lastSnapshot) 74 | } 75 | }) 76 | 77 | it("Should claim Hegic after the offering (was provided enough)", async () => { 78 | lastSnapshot = await snapshot() 79 | try { 80 | const {InitialOffering, HEGIC} = await contract 81 | const start = await InitialOffering.START() 82 | const delta = parseInt(start - Date.now() / 1000) + 1 83 | 84 | const startBalance = await Promise.all([ 85 | HEGIC.balanceOf(user1).then(toBN), 86 | HEGIC.balanceOf(user2).then(toBN), 87 | HEGIC.balanceOf(user3).then(toBN), 88 | HEGIC.balanceOf(user4).then(toBN), 89 | ]) 90 | 91 | await timeTravel(delta) 92 | await InitialOffering.sendTransaction({value:toWei(1000), from:user1}) 93 | await InitialOffering.sendTransaction({value:toWei(2000), from:user2}) 94 | await InitialOffering.sendTransaction({value:toWei(500), from:user4}) 95 | await InitialOffering.sendTransaction({value:toWei(1000), from:user2}) 96 | await InitialOffering.sendTransaction({value:toWei(2000), from:user3}) 97 | await timeTravel(3 * 24 * 3600 + 1) 98 | await InitialOffering.claim({from: user1}) 99 | await InitialOffering.claim({from: user2}) 100 | await InitialOffering.claim({from: user3}) 101 | await InitialOffering.claim({from: user4}) 102 | 103 | 104 | const deltaBalance = await Promise.all([ 105 | HEGIC.balanceOf(user1).then(toBN), 106 | HEGIC.balanceOf(user2).then(toBN), 107 | HEGIC.balanceOf(user3).then(toBN), 108 | HEGIC.balanceOf(user4).then(toBN), 109 | ]).then(x => x.map((x,i) => x.sub(startBalance[0]).toString())) 110 | assert.equal(deltaBalance[0], "13901584615384615384615384") 111 | assert.equal(deltaBalance[1], "41704753846153846153846153") 112 | assert.equal(deltaBalance[2], "27803169230769230769230769") 113 | assert.equal(deltaBalance[3], "6950792307692307692307692") 114 | 115 | await InitialOffering.withdrawProvidedETH() 116 | const contractBalance = await web3.eth 117 | .getBalance(InitialOffering.address) 118 | .then(x => x.toString()) 119 | assert.equal(contractBalance, "0") 120 | 121 | await InitialOffering.withdrawHEGIC().then( 122 | () => assert.faild("HEGIC was withdrawn"), 123 | x => assert.equal(x.reason, "The required amount has been provided!") 124 | ) 125 | } finally { 126 | await revert(lastSnapshot) 127 | } 128 | }) 129 | 130 | it("Should claim ETH after the offering (was provided less than necessary)", async () => { 131 | lastSnapshot = await snapshot() 132 | try { 133 | const {InitialOffering, HEGIC} = await contract 134 | const start = await InitialOffering.START() 135 | const delta = parseInt(start - Date.now() / 1000) + 1 136 | 137 | const startBalance = await Promise.all([ 138 | HEGIC.balanceOf(user1).then(toBN), 139 | HEGIC.balanceOf(user2).then(toBN), 140 | HEGIC.balanceOf(user3).then(toBN), 141 | HEGIC.balanceOf(user4).then(toBN), 142 | ]) 143 | 144 | await timeTravel(delta) 145 | await InitialOffering.sendTransaction({value:toWei(10), from:user1}) 146 | await InitialOffering.sendTransaction({value:toWei(20), from:user2}) 147 | await InitialOffering.sendTransaction({value:toWei(5), from:user4}) 148 | await InitialOffering.sendTransaction({value:toWei(10), from:user2}) 149 | await InitialOffering.sendTransaction({value:toWei(20), from:user3}) 150 | await timeTravel(3 * 24 * 3600 + 1) 151 | await InitialOffering.claim({from: user1}) 152 | await InitialOffering.claim({from: user2}) 153 | await InitialOffering.claim({from: user3}) 154 | await InitialOffering.claim({from: user4}) 155 | 156 | 157 | const deltaBalance = await Promise.all([ 158 | HEGIC.balanceOf(user1).then(toBN), 159 | HEGIC.balanceOf(user2).then(toBN), 160 | HEGIC.balanceOf(user3).then(toBN), 161 | HEGIC.balanceOf(user4).then(toBN), 162 | ]).then(x => x.map((x,i) => x.sub(startBalance[0]).toString())) 163 | assert.equal(deltaBalance[0], "0") 164 | assert.equal(deltaBalance[1], "0") 165 | assert.equal(deltaBalance[2], "0") 166 | assert.equal(deltaBalance[3], "0") 167 | 168 | await InitialOffering.withdrawHEGIC() 169 | const contractBalance = await HEGIC 170 | .balanceOf(InitialOffering.address) 171 | .then(x => x.toString()) 172 | assert.equal(contractBalance, "0") 173 | 174 | await InitialOffering.withdrawProvidedETH().then( 175 | () => assert.faild("ETH was withdrawn"), 176 | x => assert.equal(x.reason, "The required amount has not been provided!") 177 | ) 178 | } finally { 179 | await revert(lastSnapshot) 180 | } 181 | }) 182 | 183 | it("Should withdrawUnclaimedHEGIC only after 30 days after the end", async () => { 184 | lastSnapshot = await snapshot() 185 | try { 186 | const {InitialOffering, HEGIC} = await contract 187 | const start = await InitialOffering.START() 188 | const delta = parseInt(start - Date.now() / 1000) + 1 189 | 190 | await InitialOffering.withdrawUnclaimedHEGIC().then( 191 | () => assert.fail("Unclaimed HEGIC was withdrawn too early"), 192 | x => assert.equal(x.reason, "Withdrawal unavailable yet") 193 | ) 194 | 195 | await timeTravel(delta) 196 | await InitialOffering.withdrawUnclaimedHEGIC().then( 197 | () => assert.fail("Unclaimed HEGIC was withdrawn too early"), 198 | x => assert.equal(x.reason, "Withdrawal unavailable yet") 199 | ) 200 | 201 | await timeTravel(3 * 24 * 3600 + 1) 202 | await InitialOffering.withdrawUnclaimedHEGIC().then( 203 | () => assert.fail("Unclaimed HEGIC was withdrawn too early"), 204 | x => assert.equal(x.reason, "Withdrawal unavailable yet") 205 | ) 206 | await timeTravel(30 * 24 * 3600) 207 | await InitialOffering.withdrawUnclaimedHEGIC() 208 | } finally { 209 | await revert(lastSnapshot) 210 | } 211 | }) 212 | }) 213 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------