├── .babelrc ├── .eslintrc ├── .gitignore ├── .travis.yml ├── LICENSE ├── README.md ├── build ├── Controlled.sol.js ├── Controlled_all.sol ├── MiniMeToken.sol.js ├── MiniMeToken_all.sol ├── SampleCampaign-TokenController.sol.js ├── SampleCampaign-TokenController_all.sol ├── TokenController.sol.js └── TokenController_all.sol ├── contracts ├── Controlled.sol ├── MiniMeToken.sol ├── SampleCampaign-TokenController.sol └── TokenController.sol ├── env.js ├── funding.json ├── index.js ├── js ├── compile.js ├── minimetoken.js ├── minimetokenfactory.js └── minimetokenstate.js ├── package-lock.json ├── package.json ├── readme-header.png └── test └── minimetoken_normal.js /.babelrc: -------------------------------------------------------------------------------- 1 | { 2 | "presets": ["es2015", "stage-2"], 3 | "plugins": [ 4 | "add-module-exports" 5 | ] 6 | } 7 | 8 | -------------------------------------------------------------------------------- /.eslintrc: -------------------------------------------------------------------------------- 1 | { 2 | "extends": "airbnb", 3 | "rules": { 4 | "jsx-a11y/href-no-hash": "off", 5 | "jsx-a11y/anchor-is-valid": ["warn", { "aspects": ["invalidHref"] }] 6 | } 7 | } 8 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | node_modules/ 2 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: 'node_js' 2 | node_js: 3 | - '8' 4 | -------------------------------------------------------------------------------- /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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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 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 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 | {project} Copyright (C) {year} {fullname} 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 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ![MiniMe Token](readme-header.png) 2 | 3 | [![Build Status](https://travis-ci.org/Giveth/minime.svg?branch=master)](https://travis-ci.org/Giveth/minime) 4 | 5 | The MiniMeToken contract is a standard ERC20 token with extra functionality: 6 | 7 | ### The token is easy to clone! 8 | 9 | Anybody can create a new clone token from any token using this contract with an initial distribution identical to the original token at a specified block. The address calling the `createCloneToken` function will become the token controller and the token's default settings can be specified in the function call. 10 | 11 | function createCloneToken( 12 | string _cloneTokenName, 13 | uint8 _cloneDecimalUnits, 14 | string _cloneTokenSymbol, 15 | uint _snapshotBlock, 16 | bool _isConstant 17 | ) returns(address) { 18 | 19 | Once the clone token is created, it acts as a completely independent token, with it's own unique functionalities. 20 | 21 | ### Balance history is registered and available to be queried 22 | 23 | All MiniMe Tokens maintain a history of the balance changes that occur during each block. Two calls are introduced to read the totalSupply and the balance of any address at any block in the past. 24 | 25 | function totalSupplyAt(uint _blockNumber) constant returns(uint) 26 | 27 | function balanceOfAt(address _holder, uint _blockNumber) constant returns (uint) 28 | 29 | ### Optional token controller 30 | 31 | The controller of the contract can generate/destroy/transfer tokens at its own discretion. The controller can be a regular account, but the intention is for the controller to be another contract that imposes transparent rules on the token's issuance and functionality. The Token Controller is not required for the MiniMe token to function, if there is no reason to generate/destroy/transfer tokens, the token controller can be set to 0x0 and this functionality will be disabled. 32 | 33 | For example, a Token Creation contract can be set as the controller of the MiniMe Token and at the end of the token creation period, the controller can be transferred to the 0x0 address, to guarantee that no new tokens will be created. 34 | 35 | To create and destroy tokens, these two functions are introduced: 36 | 37 | function generateTokens(address _holder, uint _value) onlyController 38 | 39 | function destroyTokens(address _holder, uint _value) onlyController 40 | 41 | ### The Token's Controller can freeze transfers. 42 | 43 | If transfersEnabled == false, tokens cannot be transferred by the users, however they can still be created, destroyed, and transferred by the controller. The controller can also toggle this flag. 44 | 45 | // Allows tokens to be transferred if true or frozen if false 46 | function enableTransfers(bool _transfersEnabled) onlyController 47 | 48 | 49 | ## Applications 50 | 51 | If this token contract is used as the base token, then clones of itself can be easily generated at any given block number, this allows for incredibly powerful functionality, effectively the ability for anyone to give extra features to the token holders without having to migrate to a new contract. Some of the applications that the MiniMe token contract can be used for are: 52 | 53 | 1. Generating a voting token that is burned when you vote. 54 | 2. Generating a discount "coupon" that is redeemed when you use it. 55 | 3. Generating a token for a "spinoff" DAO. 56 | 4. Generating a token that can be used to give explicit support to an action or a campaign, like polling. 57 | 5. Generating a token to enable the token holders to collect daily, monthly or yearly payments. 58 | 6. Generating a token to limit participation in a token sale or similar event to holders of a specific token. 59 | 7. Generating token that allows a central party complete control to transfer/generate/destroy tokens at will. 60 | 8. Lots of other applications including all the applications the standard ERC 20 token can be used for. 61 | 62 | All these applications and more are enabled by the MiniMe Token Contract. The most amazing part being that anyone that wants to add these features can, in a permissionless yet safe manner without affecting the parent token's intended functionality. 63 | 64 | # How to deploy a campaign 65 | 66 | 1. Deploy the MinimeTokenFactory 67 | 2. Deploy the MinimeToken 68 | 3. Deploy the campaign 69 | 4. Assign the controller of the MinimeToken to the campaign. 70 | 71 | 72 | -------------------------------------------------------------------------------- /build/Controlled.sol.js: -------------------------------------------------------------------------------- 1 | /* This is an autogenerated file. DO NOT EDIT MANUALLY */ 2 | 3 | exports.ControlledAbi = [{"constant":false,"inputs":[{"name":"_newController","type":"address"}],"name":"changeController","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"controller","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"}] 4 | exports.ControlledByteCode = "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" 5 | exports.ControlledRuntimeByteCode = "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" 6 | exports._solcVersion = "0.4.18+commit.9cf6e910.Emscripten.clang" 7 | exports._sha256 = "0xcd25f1d20c06711ec5147fce5dc8518b5374f61f2313d4035c3650bd229e9de0" 8 | -------------------------------------------------------------------------------- /build/Controlled_all.sol: -------------------------------------------------------------------------------- 1 | 2 | //File: ./contracts/Controlled.sol 3 | pragma solidity ^0.4.18; 4 | 5 | contract Controlled { 6 | /// @notice The address of the controller is the only address that can call 7 | /// a function with this modifier 8 | modifier onlyController { require(msg.sender == controller); _; } 9 | 10 | address public controller; 11 | 12 | function Controlled() public { controller = msg.sender;} 13 | 14 | /// @notice Changes the controller of the contract 15 | /// @param _newController The new controller of the contract 16 | function changeController(address _newController) public onlyController { 17 | controller = _newController; 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /build/MiniMeToken.sol.js: -------------------------------------------------------------------------------- 1 | /* This is an autogenerated file. DO NOT EDIT MANUALLY */ 2 | 3 | exports.ApproveAndCallFallBackAbi = [{"constant":false,"inputs":[{"name":"from","type":"address"},{"name":"_amount","type":"uint256"},{"name":"_token","type":"address"},{"name":"_data","type":"bytes"}],"name":"receiveApproval","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}] 4 | exports.ApproveAndCallFallBackByteCode = "0x" 5 | exports.ApproveAndCallFallBackRuntimeByteCode = "0x" 6 | exports.ControlledAbi = [{"constant":false,"inputs":[{"name":"_newController","type":"address"}],"name":"changeController","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"controller","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"}] 7 | exports.ControlledByteCode = "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" 8 | exports.ControlledRuntimeByteCode = "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" 9 | exports.MiniMeTokenAbi = [{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_amount","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"creationBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newController","type":"address"}],"name":"changeController","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_blockNumber","type":"uint256"}],"name":"balanceOfAt","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"version","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_cloneTokenName","type":"string"},{"name":"_cloneDecimalUnits","type":"uint8"},{"name":"_cloneTokenSymbol","type":"string"},{"name":"_snapshotBlock","type":"uint256"},{"name":"_transfersEnabled","type":"bool"}],"name":"createCloneToken","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"parentToken","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_owner","type":"address"},{"name":"_amount","type":"uint256"}],"name":"generateTokens","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_blockNumber","type":"uint256"}],"name":"totalSupplyAt","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"transfersEnabled","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"parentSnapShotBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_amount","type":"uint256"},{"name":"_extraData","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_owner","type":"address"},{"name":"_amount","type":"uint256"}],"name":"destroyTokens","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_token","type":"address"}],"name":"claimTokens","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"tokenFactory","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_transfersEnabled","type":"bool"}],"name":"enableTransfers","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"controller","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_tokenFactory","type":"address"},{"name":"_parentToken","type":"address"},{"name":"_parentSnapShotBlock","type":"uint256"},{"name":"_tokenName","type":"string"},{"name":"_decimalUnits","type":"uint8"},{"name":"_tokenSymbol","type":"string"},{"name":"_transfersEnabled","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_token","type":"address"},{"indexed":true,"name":"_controller","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"}],"name":"ClaimedTokens","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_cloneToken","type":"address"},{"indexed":false,"name":"_snapshotBlock","type":"uint256"}],"name":"NewCloneToken","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"}],"name":"Approval","type":"event"}] 10 | exports.MiniMeTokenByteCode = 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11 | exports.MiniMeTokenRuntimeByteCode = 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12 | exports.MiniMeTokenFactoryAbi = [{"constant":false,"inputs":[{"name":"_parentToken","type":"address"},{"name":"_snapshotBlock","type":"uint256"},{"name":"_tokenName","type":"string"},{"name":"_decimalUnits","type":"uint8"},{"name":"_tokenSymbol","type":"string"},{"name":"_transfersEnabled","type":"bool"}],"name":"createCloneToken","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"}] 13 | exports.MiniMeTokenFactoryByteCode = 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14 | exports.MiniMeTokenFactoryRuntimeByteCode = 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15 | exports.TokenControllerAbi = [{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"onTransfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"},{"name":"_amount","type":"uint256"}],"name":"onApprove","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_owner","type":"address"}],"name":"proxyPayment","outputs":[{"name":"","type":"bool"}],"payable":true,"stateMutability":"payable","type":"function"}] 16 | exports.TokenControllerByteCode = "0x" 17 | exports.TokenControllerRuntimeByteCode = "0x" 18 | exports._solcVersion = "0.4.18+commit.9cf6e910.Emscripten.clang" 19 | exports._sha256 = "0xce107acc70c4912b6ae6901846f8ff4464203918656eb585a3f6051b1ef15649" 20 | -------------------------------------------------------------------------------- /build/MiniMeToken_all.sol: -------------------------------------------------------------------------------- 1 | 2 | //File: contracts/Controlled.sol 3 | pragma solidity ^0.4.18; 4 | 5 | contract Controlled { 6 | /// @notice The address of the controller is the only address that can call 7 | /// a function with this modifier 8 | modifier onlyController { require(msg.sender == controller); _; } 9 | 10 | address public controller; 11 | 12 | function Controlled() public { controller = msg.sender;} 13 | 14 | /// @notice Changes the controller of the contract 15 | /// @param _newController The new controller of the contract 16 | function changeController(address _newController) public onlyController { 17 | controller = _newController; 18 | } 19 | } 20 | 21 | //File: contracts/TokenController.sol 22 | pragma solidity ^0.4.18; 23 | 24 | /// @dev The token controller contract must implement these functions 25 | contract TokenController { 26 | /// @notice Called when `_owner` sends ether to the MiniMe Token contract 27 | /// @param _owner The address that sent the ether to create tokens 28 | /// @return True if the ether is accepted, false if it throws 29 | function proxyPayment(address _owner) public payable returns(bool); 30 | 31 | /// @notice Notifies the controller about a token transfer allowing the 32 | /// controller to react if desired 33 | /// @param _from The origin of the transfer 34 | /// @param _to The destination of the transfer 35 | /// @param _amount The amount of the transfer 36 | /// @return False if the controller does not authorize the transfer 37 | function onTransfer(address _from, address _to, uint _amount) public returns(bool); 38 | 39 | /// @notice Notifies the controller about an approval allowing the 40 | /// controller to react if desired 41 | /// @param _owner The address that calls `approve()` 42 | /// @param _spender The spender in the `approve()` call 43 | /// @param _amount The amount in the `approve()` call 44 | /// @return False if the controller does not authorize the approval 45 | function onApprove(address _owner, address _spender, uint _amount) public 46 | returns(bool); 47 | } 48 | 49 | //File: ./contracts/MiniMeToken.sol 50 | pragma solidity ^0.4.18; 51 | 52 | /* 53 | Copyright 2016, Jordi Baylina 54 | 55 | This program is free software: you can redistribute it and/or modify 56 | it under the terms of the GNU General Public License as published by 57 | the Free Software Foundation, either version 3 of the License, or 58 | (at your option) any later version. 59 | 60 | This program is distributed in the hope that it will be useful, 61 | but WITHOUT ANY WARRANTY; without even the implied warranty of 62 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 63 | GNU General Public License for more details. 64 | 65 | You should have received a copy of the GNU General Public License 66 | along with this program. If not, see . 67 | */ 68 | 69 | /// @title MiniMeToken Contract 70 | /// @author Jordi Baylina 71 | /// @dev This token contract's goal is to make it easy for anyone to clone this 72 | /// token using the token distribution at a given block, this will allow DAO's 73 | /// and DApps to upgrade their features in a decentralized manner without 74 | /// affecting the original token 75 | /// @dev It is ERC20 compliant, but still needs to under go further testing. 76 | 77 | 78 | 79 | 80 | contract ApproveAndCallFallBack { 81 | function receiveApproval(address from, uint256 _amount, address _token, bytes _data) public; 82 | } 83 | 84 | /// @dev The actual token contract, the default controller is the msg.sender 85 | /// that deploys the contract, so usually this token will be deployed by a 86 | /// token controller contract, which Giveth will call a "Campaign" 87 | contract MiniMeToken is Controlled { 88 | 89 | string public name; //The Token's name: e.g. DigixDAO Tokens 90 | uint8 public decimals; //Number of decimals of the smallest unit 91 | string public symbol; //An identifier: e.g. REP 92 | string public version = 'MMT_0.2'; //An arbitrary versioning scheme 93 | 94 | 95 | /// @dev `Checkpoint` is the structure that attaches a block number to a 96 | /// given value, the block number attached is the one that last changed the 97 | /// value 98 | struct Checkpoint { 99 | 100 | // `fromBlock` is the block number that the value was generated from 101 | uint128 fromBlock; 102 | 103 | // `value` is the amount of tokens at a specific block number 104 | uint128 value; 105 | } 106 | 107 | // `parentToken` is the Token address that was cloned to produce this token; 108 | // it will be 0x0 for a token that was not cloned 109 | MiniMeToken public parentToken; 110 | 111 | // `parentSnapShotBlock` is the block number from the Parent Token that was 112 | // used to determine the initial distribution of the Clone Token 113 | uint public parentSnapShotBlock; 114 | 115 | // `creationBlock` is the block number that the Clone Token was created 116 | uint public creationBlock; 117 | 118 | // `balances` is the map that tracks the balance of each address, in this 119 | // contract when the balance changes the block number that the change 120 | // occurred is also included in the map 121 | mapping (address => Checkpoint[]) balances; 122 | 123 | // `allowed` tracks any extra transfer rights as in all ERC20 tokens 124 | mapping (address => mapping (address => uint256)) allowed; 125 | 126 | // Tracks the history of the `totalSupply` of the token 127 | Checkpoint[] totalSupplyHistory; 128 | 129 | // Flag that determines if the token is transferable or not. 130 | bool public transfersEnabled; 131 | 132 | // The factory used to create new clone tokens 133 | MiniMeTokenFactory public tokenFactory; 134 | 135 | //////////////// 136 | // Constructor 137 | //////////////// 138 | 139 | /// @notice Constructor to create a MiniMeToken 140 | /// @param _tokenFactory The address of the MiniMeTokenFactory contract that 141 | /// will create the Clone token contracts, the token factory needs to be 142 | /// deployed first 143 | /// @param _parentToken Address of the parent token, set to 0x0 if it is a 144 | /// new token 145 | /// @param _parentSnapShotBlock Block of the parent token that will 146 | /// determine the initial distribution of the clone token, set to 0 if it 147 | /// is a new token 148 | /// @param _tokenName Name of the new token 149 | /// @param _decimalUnits Number of decimals of the new token 150 | /// @param _tokenSymbol Token Symbol for the new token 151 | /// @param _transfersEnabled If true, tokens will be able to be transferred 152 | function MiniMeToken( 153 | address _tokenFactory, 154 | address _parentToken, 155 | uint _parentSnapShotBlock, 156 | string _tokenName, 157 | uint8 _decimalUnits, 158 | string _tokenSymbol, 159 | bool _transfersEnabled 160 | ) public { 161 | tokenFactory = MiniMeTokenFactory(_tokenFactory); 162 | name = _tokenName; // Set the name 163 | decimals = _decimalUnits; // Set the decimals 164 | symbol = _tokenSymbol; // Set the symbol 165 | parentToken = MiniMeToken(_parentToken); 166 | parentSnapShotBlock = _parentSnapShotBlock; 167 | transfersEnabled = _transfersEnabled; 168 | creationBlock = block.number; 169 | } 170 | 171 | 172 | /////////////////// 173 | // ERC20 Methods 174 | /////////////////// 175 | 176 | /// @notice Send `_amount` tokens to `_to` from `msg.sender` 177 | /// @param _to The address of the recipient 178 | /// @param _amount The amount of tokens to be transferred 179 | /// @return Whether the transfer was successful or not 180 | function transfer(address _to, uint256 _amount) public returns (bool success) { 181 | require(transfersEnabled); 182 | doTransfer(msg.sender, _to, _amount); 183 | return true; 184 | } 185 | 186 | /// @notice Send `_amount` tokens to `_to` from `_from` on the condition it 187 | /// is approved by `_from` 188 | /// @param _from The address holding the tokens being transferred 189 | /// @param _to The address of the recipient 190 | /// @param _amount The amount of tokens to be transferred 191 | /// @return True if the transfer was successful 192 | function transferFrom(address _from, address _to, uint256 _amount 193 | ) public returns (bool success) { 194 | 195 | // The controller of this contract can move tokens around at will, 196 | // this is important to recognize! Confirm that you trust the 197 | // controller of this contract, which in most situations should be 198 | // another open source smart contract or 0x0 199 | if (msg.sender != controller) { 200 | require(transfersEnabled); 201 | 202 | // The standard ERC 20 transferFrom functionality 203 | require(allowed[_from][msg.sender] >= _amount); 204 | allowed[_from][msg.sender] -= _amount; 205 | } 206 | doTransfer(_from, _to, _amount); 207 | return true; 208 | } 209 | 210 | /// @dev This is the actual transfer function in the token contract, it can 211 | /// only be called by other functions in this contract. 212 | /// @param _from The address holding the tokens being transferred 213 | /// @param _to The address of the recipient 214 | /// @param _amount The amount of tokens to be transferred 215 | /// @return True if the transfer was successful 216 | function doTransfer(address _from, address _to, uint _amount 217 | ) internal { 218 | 219 | if (_amount == 0) { 220 | Transfer(_from, _to, _amount); // Follow the spec to louch the event when transfer 0 221 | return; 222 | } 223 | 224 | require(parentSnapShotBlock < block.number); 225 | 226 | // Do not allow transfer to 0x0 or the token contract itself 227 | require((_to != 0) && (_to != address(this))); 228 | 229 | // If the amount being transfered is more than the balance of the 230 | // account the transfer throws 231 | var previousBalanceFrom = balanceOfAt(_from, block.number); 232 | 233 | require(previousBalanceFrom >= _amount); 234 | 235 | // Alerts the token controller of the transfer 236 | if (isContract(controller)) { 237 | require(TokenController(controller).onTransfer(_from, _to, _amount)); 238 | } 239 | 240 | // First update the balance array with the new value for the address 241 | // sending the tokens 242 | updateValueAtNow(balances[_from], previousBalanceFrom - _amount); 243 | 244 | // Then update the balance array with the new value for the address 245 | // receiving the tokens 246 | var previousBalanceTo = balanceOfAt(_to, block.number); 247 | require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow 248 | updateValueAtNow(balances[_to], previousBalanceTo + _amount); 249 | 250 | // An event to make the transfer easy to find on the blockchain 251 | Transfer(_from, _to, _amount); 252 | 253 | } 254 | 255 | /// @param _owner The address that's balance is being requested 256 | /// @return The balance of `_owner` at the current block 257 | function balanceOf(address _owner) public constant returns (uint256 balance) { 258 | return balanceOfAt(_owner, block.number); 259 | } 260 | 261 | /// @notice `msg.sender` approves `_spender` to spend `_amount` tokens on 262 | /// its behalf. This is a modified version of the ERC20 approve function 263 | /// to be a little bit safer 264 | /// @param _spender The address of the account able to transfer the tokens 265 | /// @param _amount The amount of tokens to be approved for transfer 266 | /// @return True if the approval was successful 267 | function approve(address _spender, uint256 _amount) public returns (bool success) { 268 | require(transfersEnabled); 269 | 270 | // To change the approve amount you first have to reduce the addresses` 271 | // allowance to zero by calling `approve(_spender,0)` if it is not 272 | // already 0 to mitigate the race condition described here: 273 | // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 274 | require((_amount == 0) || (allowed[msg.sender][_spender] == 0)); 275 | 276 | // Alerts the token controller of the approve function call 277 | if (isContract(controller)) { 278 | require(TokenController(controller).onApprove(msg.sender, _spender, _amount)); 279 | } 280 | 281 | allowed[msg.sender][_spender] = _amount; 282 | Approval(msg.sender, _spender, _amount); 283 | return true; 284 | } 285 | 286 | /// @dev This function makes it easy to read the `allowed[]` map 287 | /// @param _owner The address of the account that owns the token 288 | /// @param _spender The address of the account able to transfer the tokens 289 | /// @return Amount of remaining tokens of _owner that _spender is allowed 290 | /// to spend 291 | function allowance(address _owner, address _spender 292 | ) public constant returns (uint256 remaining) { 293 | return allowed[_owner][_spender]; 294 | } 295 | 296 | /// @notice `msg.sender` approves `_spender` to send `_amount` tokens on 297 | /// its behalf, and then a function is triggered in the contract that is 298 | /// being approved, `_spender`. This allows users to use their tokens to 299 | /// interact with contracts in one function call instead of two 300 | /// @param _spender The address of the contract able to transfer the tokens 301 | /// @param _amount The amount of tokens to be approved for transfer 302 | /// @return True if the function call was successful 303 | function approveAndCall(address _spender, uint256 _amount, bytes _extraData 304 | ) public returns (bool success) { 305 | require(approve(_spender, _amount)); 306 | 307 | ApproveAndCallFallBack(_spender).receiveApproval( 308 | msg.sender, 309 | _amount, 310 | this, 311 | _extraData 312 | ); 313 | 314 | return true; 315 | } 316 | 317 | /// @dev This function makes it easy to get the total number of tokens 318 | /// @return The total number of tokens 319 | function totalSupply() public constant returns (uint) { 320 | return totalSupplyAt(block.number); 321 | } 322 | 323 | 324 | //////////////// 325 | // Query balance and totalSupply in History 326 | //////////////// 327 | 328 | /// @dev Queries the balance of `_owner` at a specific `_blockNumber` 329 | /// @param _owner The address from which the balance will be retrieved 330 | /// @param _blockNumber The block number when the balance is queried 331 | /// @return The balance at `_blockNumber` 332 | function balanceOfAt(address _owner, uint _blockNumber) public constant 333 | returns (uint) { 334 | 335 | // These next few lines are used when the balance of the token is 336 | // requested before a check point was ever created for this token, it 337 | // requires that the `parentToken.balanceOfAt` be queried at the 338 | // genesis block for that token as this contains initial balance of 339 | // this token 340 | if ((balances[_owner].length == 0) 341 | || (balances[_owner][0].fromBlock > _blockNumber)) { 342 | if (address(parentToken) != 0) { 343 | return parentToken.balanceOfAt(_owner, min(_blockNumber, parentSnapShotBlock)); 344 | } else { 345 | // Has no parent 346 | return 0; 347 | } 348 | 349 | // This will return the expected balance during normal situations 350 | } else { 351 | return getValueAt(balances[_owner], _blockNumber); 352 | } 353 | } 354 | 355 | /// @notice Total amount of tokens at a specific `_blockNumber`. 356 | /// @param _blockNumber The block number when the totalSupply is queried 357 | /// @return The total amount of tokens at `_blockNumber` 358 | function totalSupplyAt(uint _blockNumber) public constant returns(uint) { 359 | 360 | // These next few lines are used when the totalSupply of the token is 361 | // requested before a check point was ever created for this token, it 362 | // requires that the `parentToken.totalSupplyAt` be queried at the 363 | // genesis block for this token as that contains totalSupply of this 364 | // token at this block number. 365 | if ((totalSupplyHistory.length == 0) 366 | || (totalSupplyHistory[0].fromBlock > _blockNumber)) { 367 | if (address(parentToken) != 0) { 368 | return parentToken.totalSupplyAt(min(_blockNumber, parentSnapShotBlock)); 369 | } else { 370 | return 0; 371 | } 372 | 373 | // This will return the expected totalSupply during normal situations 374 | } else { 375 | return getValueAt(totalSupplyHistory, _blockNumber); 376 | } 377 | } 378 | 379 | //////////////// 380 | // Clone Token Method 381 | //////////////// 382 | 383 | /// @notice Creates a new clone token with the initial distribution being 384 | /// this token at `_snapshotBlock` 385 | /// @param _cloneTokenName Name of the clone token 386 | /// @param _cloneDecimalUnits Number of decimals of the smallest unit 387 | /// @param _cloneTokenSymbol Symbol of the clone token 388 | /// @param _snapshotBlock Block when the distribution of the parent token is 389 | /// copied to set the initial distribution of the new clone token; 390 | /// if the block is zero than the actual block, the current block is used 391 | /// @param _transfersEnabled True if transfers are allowed in the clone 392 | /// @return The address of the new MiniMeToken Contract 393 | function createCloneToken( 394 | string _cloneTokenName, 395 | uint8 _cloneDecimalUnits, 396 | string _cloneTokenSymbol, 397 | uint _snapshotBlock, 398 | bool _transfersEnabled 399 | ) public returns(address) { 400 | if (_snapshotBlock == 0) _snapshotBlock = block.number; 401 | MiniMeToken cloneToken = tokenFactory.createCloneToken( 402 | this, 403 | _snapshotBlock, 404 | _cloneTokenName, 405 | _cloneDecimalUnits, 406 | _cloneTokenSymbol, 407 | _transfersEnabled 408 | ); 409 | 410 | cloneToken.changeController(msg.sender); 411 | 412 | // An event to make the token easy to find on the blockchain 413 | NewCloneToken(address(cloneToken), _snapshotBlock); 414 | return address(cloneToken); 415 | } 416 | 417 | //////////////// 418 | // Generate and destroy tokens 419 | //////////////// 420 | 421 | /// @notice Generates `_amount` tokens that are assigned to `_owner` 422 | /// @param _owner The address that will be assigned the new tokens 423 | /// @param _amount The quantity of tokens generated 424 | /// @return True if the tokens are generated correctly 425 | function generateTokens(address _owner, uint _amount 426 | ) public onlyController returns (bool) { 427 | uint curTotalSupply = totalSupply(); 428 | require(curTotalSupply + _amount >= curTotalSupply); // Check for overflow 429 | uint previousBalanceTo = balanceOf(_owner); 430 | require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow 431 | updateValueAtNow(totalSupplyHistory, curTotalSupply + _amount); 432 | updateValueAtNow(balances[_owner], previousBalanceTo + _amount); 433 | Transfer(0, _owner, _amount); 434 | return true; 435 | } 436 | 437 | 438 | /// @notice Burns `_amount` tokens from `_owner` 439 | /// @param _owner The address that will lose the tokens 440 | /// @param _amount The quantity of tokens to burn 441 | /// @return True if the tokens are burned correctly 442 | function destroyTokens(address _owner, uint _amount 443 | ) onlyController public returns (bool) { 444 | uint curTotalSupply = totalSupply(); 445 | require(curTotalSupply >= _amount); 446 | uint previousBalanceFrom = balanceOf(_owner); 447 | require(previousBalanceFrom >= _amount); 448 | updateValueAtNow(totalSupplyHistory, curTotalSupply - _amount); 449 | updateValueAtNow(balances[_owner], previousBalanceFrom - _amount); 450 | Transfer(_owner, 0, _amount); 451 | return true; 452 | } 453 | 454 | //////////////// 455 | // Enable tokens transfers 456 | //////////////// 457 | 458 | 459 | /// @notice Enables token holders to transfer their tokens freely if true 460 | /// @param _transfersEnabled True if transfers are allowed in the clone 461 | function enableTransfers(bool _transfersEnabled) public onlyController { 462 | transfersEnabled = _transfersEnabled; 463 | } 464 | 465 | //////////////// 466 | // Internal helper functions to query and set a value in a snapshot array 467 | //////////////// 468 | 469 | /// @dev `getValueAt` retrieves the number of tokens at a given block number 470 | /// @param checkpoints The history of values being queried 471 | /// @param _block The block number to retrieve the value at 472 | /// @return The number of tokens being queried 473 | function getValueAt(Checkpoint[] storage checkpoints, uint _block 474 | ) constant internal returns (uint) { 475 | if (checkpoints.length == 0) return 0; 476 | 477 | // Shortcut for the actual value 478 | if (_block >= checkpoints[checkpoints.length-1].fromBlock) 479 | return checkpoints[checkpoints.length-1].value; 480 | if (_block < checkpoints[0].fromBlock) return 0; 481 | 482 | // Binary search of the value in the array 483 | uint min = 0; 484 | uint max = checkpoints.length-1; 485 | while (max > min) { 486 | uint mid = (max + min + 1)/ 2; 487 | if (checkpoints[mid].fromBlock<=_block) { 488 | min = mid; 489 | } else { 490 | max = mid-1; 491 | } 492 | } 493 | return checkpoints[min].value; 494 | } 495 | 496 | /// @dev `updateValueAtNow` used to update the `balances` map and the 497 | /// `totalSupplyHistory` 498 | /// @param checkpoints The history of data being updated 499 | /// @param _value The new number of tokens 500 | function updateValueAtNow(Checkpoint[] storage checkpoints, uint _value 501 | ) internal { 502 | if ((checkpoints.length == 0) 503 | || (checkpoints[checkpoints.length -1].fromBlock < block.number)) { 504 | Checkpoint storage newCheckPoint = checkpoints[ checkpoints.length++ ]; 505 | newCheckPoint.fromBlock = uint128(block.number); 506 | newCheckPoint.value = uint128(_value); 507 | } else { 508 | Checkpoint storage oldCheckPoint = checkpoints[checkpoints.length-1]; 509 | oldCheckPoint.value = uint128(_value); 510 | } 511 | } 512 | 513 | /// @dev Internal function to determine if an address is a contract 514 | /// @param _addr The address being queried 515 | /// @return True if `_addr` is a contract 516 | function isContract(address _addr) constant internal returns(bool) { 517 | uint size; 518 | if (_addr == 0) return false; 519 | assembly { 520 | size := extcodesize(_addr) 521 | } 522 | return size>0; 523 | } 524 | 525 | /// @dev Helper function to return a min betwen the two uints 526 | function min(uint a, uint b) pure internal returns (uint) { 527 | return a < b ? a : b; 528 | } 529 | 530 | /// @notice The fallback function: If the contract's controller has not been 531 | /// set to 0, then the `proxyPayment` method is called which relays the 532 | /// ether and creates tokens as described in the token controller contract 533 | function () public payable { 534 | require(isContract(controller)); 535 | require(TokenController(controller).proxyPayment.value(msg.value)(msg.sender)); 536 | } 537 | 538 | ////////// 539 | // Safety Methods 540 | ////////// 541 | 542 | /// @notice This method can be used by the controller to extract mistakenly 543 | /// sent tokens to this contract. 544 | /// @param _token The address of the token contract that you want to recover 545 | /// set to 0 in case you want to extract ether. 546 | function claimTokens(address _token) public onlyController { 547 | if (_token == 0x0) { 548 | controller.transfer(this.balance); 549 | return; 550 | } 551 | 552 | MiniMeToken token = MiniMeToken(_token); 553 | uint balance = token.balanceOf(this); 554 | token.transfer(controller, balance); 555 | ClaimedTokens(_token, controller, balance); 556 | } 557 | 558 | //////////////// 559 | // Events 560 | //////////////// 561 | event ClaimedTokens(address indexed _token, address indexed _controller, uint _amount); 562 | event Transfer(address indexed _from, address indexed _to, uint256 _amount); 563 | event NewCloneToken(address indexed _cloneToken, uint _snapshotBlock); 564 | event Approval( 565 | address indexed _owner, 566 | address indexed _spender, 567 | uint256 _amount 568 | ); 569 | 570 | } 571 | 572 | 573 | //////////////// 574 | // MiniMeTokenFactory 575 | //////////////// 576 | 577 | /// @dev This contract is used to generate clone contracts from a contract. 578 | /// In solidity this is the way to create a contract from a contract of the 579 | /// same class 580 | contract MiniMeTokenFactory { 581 | 582 | /// @notice Update the DApp by creating a new token with new functionalities 583 | /// the msg.sender becomes the controller of this clone token 584 | /// @param _parentToken Address of the token being cloned 585 | /// @param _snapshotBlock Block of the parent token that will 586 | /// determine the initial distribution of the clone token 587 | /// @param _tokenName Name of the new token 588 | /// @param _decimalUnits Number of decimals of the new token 589 | /// @param _tokenSymbol Token Symbol for the new token 590 | /// @param _transfersEnabled If true, tokens will be able to be transferred 591 | /// @return The address of the new token contract 592 | function createCloneToken( 593 | address _parentToken, 594 | uint _snapshotBlock, 595 | string _tokenName, 596 | uint8 _decimalUnits, 597 | string _tokenSymbol, 598 | bool _transfersEnabled 599 | ) public returns (MiniMeToken) { 600 | MiniMeToken newToken = new MiniMeToken( 601 | this, 602 | _parentToken, 603 | _snapshotBlock, 604 | _tokenName, 605 | _decimalUnits, 606 | _tokenSymbol, 607 | _transfersEnabled 608 | ); 609 | 610 | newToken.changeController(msg.sender); 611 | return newToken; 612 | } 613 | } 614 | -------------------------------------------------------------------------------- /build/SampleCampaign-TokenController_all.sol: -------------------------------------------------------------------------------- 1 | 2 | //File: contracts/Controlled.sol 3 | pragma solidity ^0.4.18; 4 | 5 | contract Controlled { 6 | /// @notice The address of the controller is the only address that can call 7 | /// a function with this modifier 8 | modifier onlyController { require(msg.sender == controller); _; } 9 | 10 | address public controller; 11 | 12 | function Controlled() public { controller = msg.sender;} 13 | 14 | /// @notice Changes the controller of the contract 15 | /// @param _newController The new controller of the contract 16 | function changeController(address _newController) public onlyController { 17 | controller = _newController; 18 | } 19 | } 20 | 21 | //File: contracts/TokenController.sol 22 | pragma solidity ^0.4.18; 23 | 24 | /// @dev The token controller contract must implement these functions 25 | contract TokenController { 26 | /// @notice Called when `_owner` sends ether to the MiniMe Token contract 27 | /// @param _owner The address that sent the ether to create tokens 28 | /// @return True if the ether is accepted, false if it throws 29 | function proxyPayment(address _owner) public payable returns(bool); 30 | 31 | /// @notice Notifies the controller about a token transfer allowing the 32 | /// controller to react if desired 33 | /// @param _from The origin of the transfer 34 | /// @param _to The destination of the transfer 35 | /// @param _amount The amount of the transfer 36 | /// @return False if the controller does not authorize the transfer 37 | function onTransfer(address _from, address _to, uint _amount) public returns(bool); 38 | 39 | /// @notice Notifies the controller about an approval allowing the 40 | /// controller to react if desired 41 | /// @param _owner The address that calls `approve()` 42 | /// @param _spender The spender in the `approve()` call 43 | /// @param _amount The amount in the `approve()` call 44 | /// @return False if the controller does not authorize the approval 45 | function onApprove(address _owner, address _spender, uint _amount) public 46 | returns(bool); 47 | } 48 | 49 | //File: contracts/MiniMeToken.sol 50 | pragma solidity ^0.4.18; 51 | 52 | /* 53 | Copyright 2016, Jordi Baylina 54 | 55 | This program is free software: you can redistribute it and/or modify 56 | it under the terms of the GNU General Public License as published by 57 | the Free Software Foundation, either version 3 of the License, or 58 | (at your option) any later version. 59 | 60 | This program is distributed in the hope that it will be useful, 61 | but WITHOUT ANY WARRANTY; without even the implied warranty of 62 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 63 | GNU General Public License for more details. 64 | 65 | You should have received a copy of the GNU General Public License 66 | along with this program. If not, see . 67 | */ 68 | 69 | /// @title MiniMeToken Contract 70 | /// @author Jordi Baylina 71 | /// @dev This token contract's goal is to make it easy for anyone to clone this 72 | /// token using the token distribution at a given block, this will allow DAO's 73 | /// and DApps to upgrade their features in a decentralized manner without 74 | /// affecting the original token 75 | /// @dev It is ERC20 compliant, but still needs to under go further testing. 76 | 77 | 78 | 79 | 80 | contract ApproveAndCallFallBack { 81 | function receiveApproval(address from, uint256 _amount, address _token, bytes _data) public; 82 | } 83 | 84 | /// @dev The actual token contract, the default controller is the msg.sender 85 | /// that deploys the contract, so usually this token will be deployed by a 86 | /// token controller contract, which Giveth will call a "Campaign" 87 | contract MiniMeToken is Controlled { 88 | 89 | string public name; //The Token's name: e.g. DigixDAO Tokens 90 | uint8 public decimals; //Number of decimals of the smallest unit 91 | string public symbol; //An identifier: e.g. REP 92 | string public version = 'MMT_0.2'; //An arbitrary versioning scheme 93 | 94 | 95 | /// @dev `Checkpoint` is the structure that attaches a block number to a 96 | /// given value, the block number attached is the one that last changed the 97 | /// value 98 | struct Checkpoint { 99 | 100 | // `fromBlock` is the block number that the value was generated from 101 | uint128 fromBlock; 102 | 103 | // `value` is the amount of tokens at a specific block number 104 | uint128 value; 105 | } 106 | 107 | // `parentToken` is the Token address that was cloned to produce this token; 108 | // it will be 0x0 for a token that was not cloned 109 | MiniMeToken public parentToken; 110 | 111 | // `parentSnapShotBlock` is the block number from the Parent Token that was 112 | // used to determine the initial distribution of the Clone Token 113 | uint public parentSnapShotBlock; 114 | 115 | // `creationBlock` is the block number that the Clone Token was created 116 | uint public creationBlock; 117 | 118 | // `balances` is the map that tracks the balance of each address, in this 119 | // contract when the balance changes the block number that the change 120 | // occurred is also included in the map 121 | mapping (address => Checkpoint[]) balances; 122 | 123 | // `allowed` tracks any extra transfer rights as in all ERC20 tokens 124 | mapping (address => mapping (address => uint256)) allowed; 125 | 126 | // Tracks the history of the `totalSupply` of the token 127 | Checkpoint[] totalSupplyHistory; 128 | 129 | // Flag that determines if the token is transferable or not. 130 | bool public transfersEnabled; 131 | 132 | // The factory used to create new clone tokens 133 | MiniMeTokenFactory public tokenFactory; 134 | 135 | //////////////// 136 | // Constructor 137 | //////////////// 138 | 139 | /// @notice Constructor to create a MiniMeToken 140 | /// @param _tokenFactory The address of the MiniMeTokenFactory contract that 141 | /// will create the Clone token contracts, the token factory needs to be 142 | /// deployed first 143 | /// @param _parentToken Address of the parent token, set to 0x0 if it is a 144 | /// new token 145 | /// @param _parentSnapShotBlock Block of the parent token that will 146 | /// determine the initial distribution of the clone token, set to 0 if it 147 | /// is a new token 148 | /// @param _tokenName Name of the new token 149 | /// @param _decimalUnits Number of decimals of the new token 150 | /// @param _tokenSymbol Token Symbol for the new token 151 | /// @param _transfersEnabled If true, tokens will be able to be transferred 152 | function MiniMeToken( 153 | address _tokenFactory, 154 | address _parentToken, 155 | uint _parentSnapShotBlock, 156 | string _tokenName, 157 | uint8 _decimalUnits, 158 | string _tokenSymbol, 159 | bool _transfersEnabled 160 | ) public { 161 | tokenFactory = MiniMeTokenFactory(_tokenFactory); 162 | name = _tokenName; // Set the name 163 | decimals = _decimalUnits; // Set the decimals 164 | symbol = _tokenSymbol; // Set the symbol 165 | parentToken = MiniMeToken(_parentToken); 166 | parentSnapShotBlock = _parentSnapShotBlock; 167 | transfersEnabled = _transfersEnabled; 168 | creationBlock = block.number; 169 | } 170 | 171 | 172 | /////////////////// 173 | // ERC20 Methods 174 | /////////////////// 175 | 176 | /// @notice Send `_amount` tokens to `_to` from `msg.sender` 177 | /// @param _to The address of the recipient 178 | /// @param _amount The amount of tokens to be transferred 179 | /// @return Whether the transfer was successful or not 180 | function transfer(address _to, uint256 _amount) public returns (bool success) { 181 | require(transfersEnabled); 182 | doTransfer(msg.sender, _to, _amount); 183 | return true; 184 | } 185 | 186 | /// @notice Send `_amount` tokens to `_to` from `_from` on the condition it 187 | /// is approved by `_from` 188 | /// @param _from The address holding the tokens being transferred 189 | /// @param _to The address of the recipient 190 | /// @param _amount The amount of tokens to be transferred 191 | /// @return True if the transfer was successful 192 | function transferFrom(address _from, address _to, uint256 _amount 193 | ) public returns (bool success) { 194 | 195 | // The controller of this contract can move tokens around at will, 196 | // this is important to recognize! Confirm that you trust the 197 | // controller of this contract, which in most situations should be 198 | // another open source smart contract or 0x0 199 | if (msg.sender != controller) { 200 | require(transfersEnabled); 201 | 202 | // The standard ERC 20 transferFrom functionality 203 | require(allowed[_from][msg.sender] >= _amount); 204 | allowed[_from][msg.sender] -= _amount; 205 | } 206 | doTransfer(_from, _to, _amount); 207 | return true; 208 | } 209 | 210 | /// @dev This is the actual transfer function in the token contract, it can 211 | /// only be called by other functions in this contract. 212 | /// @param _from The address holding the tokens being transferred 213 | /// @param _to The address of the recipient 214 | /// @param _amount The amount of tokens to be transferred 215 | /// @return True if the transfer was successful 216 | function doTransfer(address _from, address _to, uint _amount 217 | ) internal { 218 | 219 | if (_amount == 0) { 220 | Transfer(_from, _to, _amount); // Follow the spec to louch the event when transfer 0 221 | return; 222 | } 223 | 224 | require(parentSnapShotBlock < block.number); 225 | 226 | // Do not allow transfer to 0x0 or the token contract itself 227 | require((_to != 0) && (_to != address(this))); 228 | 229 | // If the amount being transfered is more than the balance of the 230 | // account the transfer throws 231 | var previousBalanceFrom = balanceOfAt(_from, block.number); 232 | 233 | require(previousBalanceFrom >= _amount); 234 | 235 | // Alerts the token controller of the transfer 236 | if (isContract(controller)) { 237 | require(TokenController(controller).onTransfer(_from, _to, _amount)); 238 | } 239 | 240 | // First update the balance array with the new value for the address 241 | // sending the tokens 242 | updateValueAtNow(balances[_from], previousBalanceFrom - _amount); 243 | 244 | // Then update the balance array with the new value for the address 245 | // receiving the tokens 246 | var previousBalanceTo = balanceOfAt(_to, block.number); 247 | require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow 248 | updateValueAtNow(balances[_to], previousBalanceTo + _amount); 249 | 250 | // An event to make the transfer easy to find on the blockchain 251 | Transfer(_from, _to, _amount); 252 | 253 | } 254 | 255 | /// @param _owner The address that's balance is being requested 256 | /// @return The balance of `_owner` at the current block 257 | function balanceOf(address _owner) public constant returns (uint256 balance) { 258 | return balanceOfAt(_owner, block.number); 259 | } 260 | 261 | /// @notice `msg.sender` approves `_spender` to spend `_amount` tokens on 262 | /// its behalf. This is a modified version of the ERC20 approve function 263 | /// to be a little bit safer 264 | /// @param _spender The address of the account able to transfer the tokens 265 | /// @param _amount The amount of tokens to be approved for transfer 266 | /// @return True if the approval was successful 267 | function approve(address _spender, uint256 _amount) public returns (bool success) { 268 | require(transfersEnabled); 269 | 270 | // To change the approve amount you first have to reduce the addresses` 271 | // allowance to zero by calling `approve(_spender,0)` if it is not 272 | // already 0 to mitigate the race condition described here: 273 | // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 274 | require((_amount == 0) || (allowed[msg.sender][_spender] == 0)); 275 | 276 | // Alerts the token controller of the approve function call 277 | if (isContract(controller)) { 278 | require(TokenController(controller).onApprove(msg.sender, _spender, _amount)); 279 | } 280 | 281 | allowed[msg.sender][_spender] = _amount; 282 | Approval(msg.sender, _spender, _amount); 283 | return true; 284 | } 285 | 286 | /// @dev This function makes it easy to read the `allowed[]` map 287 | /// @param _owner The address of the account that owns the token 288 | /// @param _spender The address of the account able to transfer the tokens 289 | /// @return Amount of remaining tokens of _owner that _spender is allowed 290 | /// to spend 291 | function allowance(address _owner, address _spender 292 | ) public constant returns (uint256 remaining) { 293 | return allowed[_owner][_spender]; 294 | } 295 | 296 | /// @notice `msg.sender` approves `_spender` to send `_amount` tokens on 297 | /// its behalf, and then a function is triggered in the contract that is 298 | /// being approved, `_spender`. This allows users to use their tokens to 299 | /// interact with contracts in one function call instead of two 300 | /// @param _spender The address of the contract able to transfer the tokens 301 | /// @param _amount The amount of tokens to be approved for transfer 302 | /// @return True if the function call was successful 303 | function approveAndCall(address _spender, uint256 _amount, bytes _extraData 304 | ) public returns (bool success) { 305 | require(approve(_spender, _amount)); 306 | 307 | ApproveAndCallFallBack(_spender).receiveApproval( 308 | msg.sender, 309 | _amount, 310 | this, 311 | _extraData 312 | ); 313 | 314 | return true; 315 | } 316 | 317 | /// @dev This function makes it easy to get the total number of tokens 318 | /// @return The total number of tokens 319 | function totalSupply() public constant returns (uint) { 320 | return totalSupplyAt(block.number); 321 | } 322 | 323 | 324 | //////////////// 325 | // Query balance and totalSupply in History 326 | //////////////// 327 | 328 | /// @dev Queries the balance of `_owner` at a specific `_blockNumber` 329 | /// @param _owner The address from which the balance will be retrieved 330 | /// @param _blockNumber The block number when the balance is queried 331 | /// @return The balance at `_blockNumber` 332 | function balanceOfAt(address _owner, uint _blockNumber) public constant 333 | returns (uint) { 334 | 335 | // These next few lines are used when the balance of the token is 336 | // requested before a check point was ever created for this token, it 337 | // requires that the `parentToken.balanceOfAt` be queried at the 338 | // genesis block for that token as this contains initial balance of 339 | // this token 340 | if ((balances[_owner].length == 0) 341 | || (balances[_owner][0].fromBlock > _blockNumber)) { 342 | if (address(parentToken) != 0) { 343 | return parentToken.balanceOfAt(_owner, min(_blockNumber, parentSnapShotBlock)); 344 | } else { 345 | // Has no parent 346 | return 0; 347 | } 348 | 349 | // This will return the expected balance during normal situations 350 | } else { 351 | return getValueAt(balances[_owner], _blockNumber); 352 | } 353 | } 354 | 355 | /// @notice Total amount of tokens at a specific `_blockNumber`. 356 | /// @param _blockNumber The block number when the totalSupply is queried 357 | /// @return The total amount of tokens at `_blockNumber` 358 | function totalSupplyAt(uint _blockNumber) public constant returns(uint) { 359 | 360 | // These next few lines are used when the totalSupply of the token is 361 | // requested before a check point was ever created for this token, it 362 | // requires that the `parentToken.totalSupplyAt` be queried at the 363 | // genesis block for this token as that contains totalSupply of this 364 | // token at this block number. 365 | if ((totalSupplyHistory.length == 0) 366 | || (totalSupplyHistory[0].fromBlock > _blockNumber)) { 367 | if (address(parentToken) != 0) { 368 | return parentToken.totalSupplyAt(min(_blockNumber, parentSnapShotBlock)); 369 | } else { 370 | return 0; 371 | } 372 | 373 | // This will return the expected totalSupply during normal situations 374 | } else { 375 | return getValueAt(totalSupplyHistory, _blockNumber); 376 | } 377 | } 378 | 379 | //////////////// 380 | // Clone Token Method 381 | //////////////// 382 | 383 | /// @notice Creates a new clone token with the initial distribution being 384 | /// this token at `_snapshotBlock` 385 | /// @param _cloneTokenName Name of the clone token 386 | /// @param _cloneDecimalUnits Number of decimals of the smallest unit 387 | /// @param _cloneTokenSymbol Symbol of the clone token 388 | /// @param _snapshotBlock Block when the distribution of the parent token is 389 | /// copied to set the initial distribution of the new clone token; 390 | /// if the block is zero than the actual block, the current block is used 391 | /// @param _transfersEnabled True if transfers are allowed in the clone 392 | /// @return The address of the new MiniMeToken Contract 393 | function createCloneToken( 394 | string _cloneTokenName, 395 | uint8 _cloneDecimalUnits, 396 | string _cloneTokenSymbol, 397 | uint _snapshotBlock, 398 | bool _transfersEnabled 399 | ) public returns(address) { 400 | if (_snapshotBlock == 0) _snapshotBlock = block.number; 401 | MiniMeToken cloneToken = tokenFactory.createCloneToken( 402 | this, 403 | _snapshotBlock, 404 | _cloneTokenName, 405 | _cloneDecimalUnits, 406 | _cloneTokenSymbol, 407 | _transfersEnabled 408 | ); 409 | 410 | cloneToken.changeController(msg.sender); 411 | 412 | // An event to make the token easy to find on the blockchain 413 | NewCloneToken(address(cloneToken), _snapshotBlock); 414 | return address(cloneToken); 415 | } 416 | 417 | //////////////// 418 | // Generate and destroy tokens 419 | //////////////// 420 | 421 | /// @notice Generates `_amount` tokens that are assigned to `_owner` 422 | /// @param _owner The address that will be assigned the new tokens 423 | /// @param _amount The quantity of tokens generated 424 | /// @return True if the tokens are generated correctly 425 | function generateTokens(address _owner, uint _amount 426 | ) public onlyController returns (bool) { 427 | uint curTotalSupply = totalSupply(); 428 | require(curTotalSupply + _amount >= curTotalSupply); // Check for overflow 429 | uint previousBalanceTo = balanceOf(_owner); 430 | require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow 431 | updateValueAtNow(totalSupplyHistory, curTotalSupply + _amount); 432 | updateValueAtNow(balances[_owner], previousBalanceTo + _amount); 433 | Transfer(0, _owner, _amount); 434 | return true; 435 | } 436 | 437 | 438 | /// @notice Burns `_amount` tokens from `_owner` 439 | /// @param _owner The address that will lose the tokens 440 | /// @param _amount The quantity of tokens to burn 441 | /// @return True if the tokens are burned correctly 442 | function destroyTokens(address _owner, uint _amount 443 | ) onlyController public returns (bool) { 444 | uint curTotalSupply = totalSupply(); 445 | require(curTotalSupply >= _amount); 446 | uint previousBalanceFrom = balanceOf(_owner); 447 | require(previousBalanceFrom >= _amount); 448 | updateValueAtNow(totalSupplyHistory, curTotalSupply - _amount); 449 | updateValueAtNow(balances[_owner], previousBalanceFrom - _amount); 450 | Transfer(_owner, 0, _amount); 451 | return true; 452 | } 453 | 454 | //////////////// 455 | // Enable tokens transfers 456 | //////////////// 457 | 458 | 459 | /// @notice Enables token holders to transfer their tokens freely if true 460 | /// @param _transfersEnabled True if transfers are allowed in the clone 461 | function enableTransfers(bool _transfersEnabled) public onlyController { 462 | transfersEnabled = _transfersEnabled; 463 | } 464 | 465 | //////////////// 466 | // Internal helper functions to query and set a value in a snapshot array 467 | //////////////// 468 | 469 | /// @dev `getValueAt` retrieves the number of tokens at a given block number 470 | /// @param checkpoints The history of values being queried 471 | /// @param _block The block number to retrieve the value at 472 | /// @return The number of tokens being queried 473 | function getValueAt(Checkpoint[] storage checkpoints, uint _block 474 | ) constant internal returns (uint) { 475 | if (checkpoints.length == 0) return 0; 476 | 477 | // Shortcut for the actual value 478 | if (_block >= checkpoints[checkpoints.length-1].fromBlock) 479 | return checkpoints[checkpoints.length-1].value; 480 | if (_block < checkpoints[0].fromBlock) return 0; 481 | 482 | // Binary search of the value in the array 483 | uint min = 0; 484 | uint max = checkpoints.length-1; 485 | while (max > min) { 486 | uint mid = (max + min + 1)/ 2; 487 | if (checkpoints[mid].fromBlock<=_block) { 488 | min = mid; 489 | } else { 490 | max = mid-1; 491 | } 492 | } 493 | return checkpoints[min].value; 494 | } 495 | 496 | /// @dev `updateValueAtNow` used to update the `balances` map and the 497 | /// `totalSupplyHistory` 498 | /// @param checkpoints The history of data being updated 499 | /// @param _value The new number of tokens 500 | function updateValueAtNow(Checkpoint[] storage checkpoints, uint _value 501 | ) internal { 502 | if ((checkpoints.length == 0) 503 | || (checkpoints[checkpoints.length -1].fromBlock < block.number)) { 504 | Checkpoint storage newCheckPoint = checkpoints[ checkpoints.length++ ]; 505 | newCheckPoint.fromBlock = uint128(block.number); 506 | newCheckPoint.value = uint128(_value); 507 | } else { 508 | Checkpoint storage oldCheckPoint = checkpoints[checkpoints.length-1]; 509 | oldCheckPoint.value = uint128(_value); 510 | } 511 | } 512 | 513 | /// @dev Internal function to determine if an address is a contract 514 | /// @param _addr The address being queried 515 | /// @return True if `_addr` is a contract 516 | function isContract(address _addr) constant internal returns(bool) { 517 | uint size; 518 | if (_addr == 0) return false; 519 | assembly { 520 | size := extcodesize(_addr) 521 | } 522 | return size>0; 523 | } 524 | 525 | /// @dev Helper function to return a min betwen the two uints 526 | function min(uint a, uint b) pure internal returns (uint) { 527 | return a < b ? a : b; 528 | } 529 | 530 | /// @notice The fallback function: If the contract's controller has not been 531 | /// set to 0, then the `proxyPayment` method is called which relays the 532 | /// ether and creates tokens as described in the token controller contract 533 | function () public payable { 534 | require(isContract(controller)); 535 | require(TokenController(controller).proxyPayment.value(msg.value)(msg.sender)); 536 | } 537 | 538 | ////////// 539 | // Safety Methods 540 | ////////// 541 | 542 | /// @notice This method can be used by the controller to extract mistakenly 543 | /// sent tokens to this contract. 544 | /// @param _token The address of the token contract that you want to recover 545 | /// set to 0 in case you want to extract ether. 546 | function claimTokens(address _token) public onlyController { 547 | if (_token == 0x0) { 548 | controller.transfer(this.balance); 549 | return; 550 | } 551 | 552 | MiniMeToken token = MiniMeToken(_token); 553 | uint balance = token.balanceOf(this); 554 | token.transfer(controller, balance); 555 | ClaimedTokens(_token, controller, balance); 556 | } 557 | 558 | //////////////// 559 | // Events 560 | //////////////// 561 | event ClaimedTokens(address indexed _token, address indexed _controller, uint _amount); 562 | event Transfer(address indexed _from, address indexed _to, uint256 _amount); 563 | event NewCloneToken(address indexed _cloneToken, uint _snapshotBlock); 564 | event Approval( 565 | address indexed _owner, 566 | address indexed _spender, 567 | uint256 _amount 568 | ); 569 | 570 | } 571 | 572 | 573 | //////////////// 574 | // MiniMeTokenFactory 575 | //////////////// 576 | 577 | /// @dev This contract is used to generate clone contracts from a contract. 578 | /// In solidity this is the way to create a contract from a contract of the 579 | /// same class 580 | contract MiniMeTokenFactory { 581 | 582 | /// @notice Update the DApp by creating a new token with new functionalities 583 | /// the msg.sender becomes the controller of this clone token 584 | /// @param _parentToken Address of the token being cloned 585 | /// @param _snapshotBlock Block of the parent token that will 586 | /// determine the initial distribution of the clone token 587 | /// @param _tokenName Name of the new token 588 | /// @param _decimalUnits Number of decimals of the new token 589 | /// @param _tokenSymbol Token Symbol for the new token 590 | /// @param _transfersEnabled If true, tokens will be able to be transferred 591 | /// @return The address of the new token contract 592 | function createCloneToken( 593 | address _parentToken, 594 | uint _snapshotBlock, 595 | string _tokenName, 596 | uint8 _decimalUnits, 597 | string _tokenSymbol, 598 | bool _transfersEnabled 599 | ) public returns (MiniMeToken) { 600 | MiniMeToken newToken = new MiniMeToken( 601 | this, 602 | _parentToken, 603 | _snapshotBlock, 604 | _tokenName, 605 | _decimalUnits, 606 | _tokenSymbol, 607 | _transfersEnabled 608 | ); 609 | 610 | newToken.changeController(msg.sender); 611 | return newToken; 612 | } 613 | } 614 | 615 | //File: ./contracts/SampleCampaign-TokenController.sol 616 | pragma solidity ^0.4.6; 617 | 618 | /* 619 | Copyright 2017, Jordi Baylina 620 | 621 | This program is free software: you can redistribute it and/or modify 622 | it under the terms of the GNU General Public License as published by 623 | the Free Software Foundation, either version 3 of the License, or 624 | (at your option) any later version. 625 | 626 | This program is distributed in the hope that it will be useful, 627 | but WITHOUT ANY WARRANTY; without even the implied warranty of 628 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 629 | GNU General Public License for more details. 630 | 631 | You should have received a copy of the GNU General Public License 632 | along with this program. If not, see . 633 | */ 634 | 635 | /// @title MilestoneTracker Contract 636 | /// @author Jordi Baylina 637 | /// @dev This contract controls the issuance of tokens for the MiniMe Token 638 | /// Contract. This version specifically acts as a Campaign manager for raising 639 | /// funds for non-profit causes, but it can be customized for any variety of 640 | /// purposes. 641 | 642 | 643 | 644 | 645 | /// @dev `Owned` is a base level contract that assigns an `owner` that can be 646 | /// later changed 647 | contract Owned { 648 | /// @dev `owner` is the only address that can call a function with this 649 | /// modifier 650 | modifier onlyOwner { require (msg.sender == owner); _; } 651 | 652 | address public owner; 653 | 654 | /// @notice The Constructor assigns the message sender to be `owner` 655 | function Owned() { owner = msg.sender;} 656 | 657 | /// @notice `owner` can step down and assign some other address to this role 658 | /// @param _newOwner The address of the new owner. 0x0 can be used to create 659 | /// an unowned neutral vault, however that cannot be undone 660 | function changeOwner(address _newOwner) onlyOwner { 661 | owner = _newOwner; 662 | } 663 | } 664 | 665 | 666 | /// @dev This is designed to control the issuance of a MiniMe Token for a 667 | /// non-profit Campaign. This contract effectively dictates the terms of the 668 | /// funding round. 669 | 670 | contract Campaign is TokenController, Owned { 671 | 672 | uint public startFundingTime; // In UNIX Time Format 673 | uint public endFundingTime; // In UNIX Time Format 674 | uint public maximumFunding; // In wei 675 | uint public totalCollected; // In wei 676 | MiniMeToken public tokenContract; // The new token for this Campaign 677 | address public vaultAddress; // The address to hold the funds donated 678 | 679 | /// @notice 'Campaign()' initiates the Campaign by setting its funding 680 | /// parameters 681 | /// @dev There are several checks to make sure the parameters are acceptable 682 | /// @param _startFundingTime The UNIX time that the Campaign will be able to 683 | /// start receiving funds 684 | /// @param _endFundingTime The UNIX time that the Campaign will stop being able 685 | /// to receive funds 686 | /// @param _maximumFunding In wei, the Maximum amount that the Campaign can 687 | /// receive (currently the max is set at 10,000 ETH for the beta) 688 | /// @param _vaultAddress The address that will store the donated funds 689 | /// @param _tokenAddress Address of the token contract this contract controls 690 | 691 | function Campaign( 692 | uint _startFundingTime, 693 | uint _endFundingTime, 694 | uint _maximumFunding, 695 | address _vaultAddress, 696 | address _tokenAddress 697 | 698 | ) { 699 | require ((_endFundingTime >= now) && // Cannot end in the past 700 | (_endFundingTime > _startFundingTime) && 701 | (_maximumFunding <= 10000 ether) && // The Beta is limited 702 | (_vaultAddress != 0)); // To prevent burning ETH 703 | startFundingTime = _startFundingTime; 704 | endFundingTime = _endFundingTime; 705 | maximumFunding = _maximumFunding; 706 | tokenContract = MiniMeToken(_tokenAddress);// The Deployed Token Contract 707 | vaultAddress = _vaultAddress; 708 | } 709 | 710 | /// @dev The fallback function is called when ether is sent to the contract, it 711 | /// simply calls `doPayment()` with the address that sent the ether as the 712 | /// `_owner`. Payable is a required solidity modifier for functions to receive 713 | /// ether, without this modifier functions will throw if ether is sent to them 714 | 715 | function () payable { 716 | doPayment(msg.sender); 717 | } 718 | 719 | ///////////////// 720 | // TokenController interface 721 | ///////////////// 722 | 723 | /// @notice `proxyPayment()` allows the caller to send ether to the Campaign and 724 | /// have the tokens created in an address of their choosing 725 | /// @param _owner The address that will hold the newly created tokens 726 | 727 | function proxyPayment(address _owner) payable returns(bool) { 728 | doPayment(_owner); 729 | return true; 730 | } 731 | 732 | /// @notice Notifies the controller about a transfer, for this Campaign all 733 | /// transfers are allowed by default and no extra notifications are needed 734 | /// @param _from The origin of the transfer 735 | /// @param _to The destination of the transfer 736 | /// @param _amount The amount of the transfer 737 | /// @return False if the controller does not authorize the transfer 738 | function onTransfer(address _from, address _to, uint _amount) returns(bool) { 739 | return true; 740 | } 741 | 742 | /// @notice Notifies the controller about an approval, for this Campaign all 743 | /// approvals are allowed by default and no extra notifications are needed 744 | /// @param _owner The address that calls `approve()` 745 | /// @param _spender The spender in the `approve()` call 746 | /// @param _amount The amount in the `approve()` call 747 | /// @return False if the controller does not authorize the approval 748 | function onApprove(address _owner, address _spender, uint _amount) 749 | returns(bool) 750 | { 751 | return true; 752 | } 753 | 754 | 755 | /// @dev `doPayment()` is an internal function that sends the ether that this 756 | /// contract receives to the `vault` and creates tokens in the address of the 757 | /// `_owner` assuming the Campaign is still accepting funds 758 | /// @param _owner The address that will hold the newly created tokens 759 | 760 | function doPayment(address _owner) internal { 761 | 762 | // First check that the Campaign is allowed to receive this donation 763 | require ((now >= startFundingTime) && 764 | (now <= endFundingTime) && 765 | (tokenContract.controller() != 0) && // Extra check 766 | (msg.value != 0) && 767 | (totalCollected + msg.value <= maximumFunding)); 768 | 769 | //Track how much the Campaign has collected 770 | totalCollected += msg.value; 771 | 772 | //Send the ether to the vault 773 | require (vaultAddress.send(msg.value)); 774 | 775 | // Creates an equal amount of tokens as ether sent. The new tokens are created 776 | // in the `_owner` address 777 | require (tokenContract.generateTokens(_owner, msg.value)); 778 | 779 | return; 780 | } 781 | 782 | /// @notice `finalizeFunding()` ends the Campaign by calling setting the 783 | /// controller to 0, thereby ending the issuance of new tokens and stopping the 784 | /// Campaign from receiving more ether 785 | /// @dev `finalizeFunding()` can only be called after the end of the funding period. 786 | 787 | function finalizeFunding() { 788 | require(now >= endFundingTime); 789 | tokenContract.changeController(0); 790 | } 791 | 792 | 793 | /// @notice `onlyOwner` changes the location that ether is sent 794 | /// @param _newVaultAddress The address that will receive the ether sent to this 795 | /// Campaign 796 | function setVault(address _newVaultAddress) onlyOwner { 797 | vaultAddress = _newVaultAddress; 798 | } 799 | 800 | } 801 | -------------------------------------------------------------------------------- /build/TokenController.sol.js: -------------------------------------------------------------------------------- 1 | /* This is an autogenerated file. DO NOT EDIT MANUALLY */ 2 | 3 | exports.TokenControllerAbi = [{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"onTransfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"},{"name":"_amount","type":"uint256"}],"name":"onApprove","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_owner","type":"address"}],"name":"proxyPayment","outputs":[{"name":"","type":"bool"}],"payable":true,"stateMutability":"payable","type":"function"}] 4 | exports.TokenControllerByteCode = "0x" 5 | exports.TokenControllerRuntimeByteCode = "0x" 6 | exports._solcVersion = "0.4.18+commit.9cf6e910.Emscripten.clang" 7 | exports._sha256 = "0x4ab21dd789d6619432629f4e930c7f6cd05cd149e14a8127f99c7c83f2c4377f" 8 | -------------------------------------------------------------------------------- /build/TokenController_all.sol: -------------------------------------------------------------------------------- 1 | 2 | //File: ./contracts/TokenController.sol 3 | pragma solidity ^0.4.18; 4 | 5 | /// @dev The token controller contract must implement these functions 6 | contract TokenController { 7 | /// @notice Called when `_owner` sends ether to the MiniMe Token contract 8 | /// @param _owner The address that sent the ether to create tokens 9 | /// @return True if the ether is accepted, false if it throws 10 | function proxyPayment(address _owner) public payable returns(bool); 11 | 12 | /// @notice Notifies the controller about a token transfer allowing the 13 | /// controller to react if desired 14 | /// @param _from The origin of the transfer 15 | /// @param _to The destination of the transfer 16 | /// @param _amount The amount of the transfer 17 | /// @return False if the controller does not authorize the transfer 18 | function onTransfer(address _from, address _to, uint _amount) public returns(bool); 19 | 20 | /// @notice Notifies the controller about an approval allowing the 21 | /// controller to react if desired 22 | /// @param _owner The address that calls `approve()` 23 | /// @param _spender The spender in the `approve()` call 24 | /// @param _amount The amount in the `approve()` call 25 | /// @return False if the controller does not authorize the approval 26 | function onApprove(address _owner, address _spender, uint _amount) public 27 | returns(bool); 28 | } 29 | -------------------------------------------------------------------------------- /contracts/Controlled.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.18; 2 | 3 | contract Controlled { 4 | /// @notice The address of the controller is the only address that can call 5 | /// a function with this modifier 6 | modifier onlyController { require(msg.sender == controller); _; } 7 | 8 | address public controller; 9 | 10 | function Controlled() public { controller = msg.sender;} 11 | 12 | /// @notice Changes the controller of the contract 13 | /// @param _newController The new controller of the contract 14 | function changeController(address _newController) public onlyController { 15 | controller = _newController; 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /contracts/MiniMeToken.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.18; 2 | 3 | /* 4 | Copyright 2016, Jordi Baylina 5 | 6 | This program is free software: you can redistribute it and/or modify 7 | it under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | This program is distributed in the hope that it will be useful, 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | GNU General Public License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with this program. If not, see . 18 | */ 19 | 20 | /// @title MiniMeToken Contract 21 | /// @author Jordi Baylina 22 | /// @dev This token contract's goal is to make it easy for anyone to clone this 23 | /// token using the token distribution at a given block, this will allow DAO's 24 | /// and DApps to upgrade their features in a decentralized manner without 25 | /// affecting the original token 26 | /// @dev It is ERC20 compliant, but still needs to under go further testing. 27 | 28 | import "./Controlled.sol"; 29 | import "./TokenController.sol"; 30 | 31 | contract ApproveAndCallFallBack { 32 | function receiveApproval(address from, uint256 _amount, address _token, bytes _data) public; 33 | } 34 | 35 | /// @dev The actual token contract, the default controller is the msg.sender 36 | /// that deploys the contract, so usually this token will be deployed by a 37 | /// token controller contract, which Giveth will call a "Campaign" 38 | contract MiniMeToken is Controlled { 39 | 40 | string public name; //The Token's name: e.g. DigixDAO Tokens 41 | uint8 public decimals; //Number of decimals of the smallest unit 42 | string public symbol; //An identifier: e.g. REP 43 | string public version = 'MMT_0.2'; //An arbitrary versioning scheme 44 | 45 | 46 | /// @dev `Checkpoint` is the structure that attaches a block number to a 47 | /// given value, the block number attached is the one that last changed the 48 | /// value 49 | struct Checkpoint { 50 | 51 | // `fromBlock` is the block number that the value was generated from 52 | uint128 fromBlock; 53 | 54 | // `value` is the amount of tokens at a specific block number 55 | uint128 value; 56 | } 57 | 58 | // `parentToken` is the Token address that was cloned to produce this token; 59 | // it will be 0x0 for a token that was not cloned 60 | MiniMeToken public parentToken; 61 | 62 | // `parentSnapShotBlock` is the block number from the Parent Token that was 63 | // used to determine the initial distribution of the Clone Token 64 | uint public parentSnapShotBlock; 65 | 66 | // `creationBlock` is the block number that the Clone Token was created 67 | uint public creationBlock; 68 | 69 | // `balances` is the map that tracks the balance of each address, in this 70 | // contract when the balance changes the block number that the change 71 | // occurred is also included in the map 72 | mapping (address => Checkpoint[]) balances; 73 | 74 | // `allowed` tracks any extra transfer rights as in all ERC20 tokens 75 | mapping (address => mapping (address => uint256)) allowed; 76 | 77 | // Tracks the history of the `totalSupply` of the token 78 | Checkpoint[] totalSupplyHistory; 79 | 80 | // Flag that determines if the token is transferable or not. 81 | bool public transfersEnabled; 82 | 83 | // The factory used to create new clone tokens 84 | MiniMeTokenFactory public tokenFactory; 85 | 86 | //////////////// 87 | // Constructor 88 | //////////////// 89 | 90 | /// @notice Constructor to create a MiniMeToken 91 | /// @param _tokenFactory The address of the MiniMeTokenFactory contract that 92 | /// will create the Clone token contracts, the token factory needs to be 93 | /// deployed first 94 | /// @param _parentToken Address of the parent token, set to 0x0 if it is a 95 | /// new token 96 | /// @param _parentSnapShotBlock Block of the parent token that will 97 | /// determine the initial distribution of the clone token, set to 0 if it 98 | /// is a new token 99 | /// @param _tokenName Name of the new token 100 | /// @param _decimalUnits Number of decimals of the new token 101 | /// @param _tokenSymbol Token Symbol for the new token 102 | /// @param _transfersEnabled If true, tokens will be able to be transferred 103 | function MiniMeToken( 104 | address _tokenFactory, 105 | address _parentToken, 106 | uint _parentSnapShotBlock, 107 | string _tokenName, 108 | uint8 _decimalUnits, 109 | string _tokenSymbol, 110 | bool _transfersEnabled 111 | ) public { 112 | tokenFactory = MiniMeTokenFactory(_tokenFactory); 113 | name = _tokenName; // Set the name 114 | decimals = _decimalUnits; // Set the decimals 115 | symbol = _tokenSymbol; // Set the symbol 116 | parentToken = MiniMeToken(_parentToken); 117 | parentSnapShotBlock = _parentSnapShotBlock; 118 | transfersEnabled = _transfersEnabled; 119 | creationBlock = block.number; 120 | } 121 | 122 | 123 | /////////////////// 124 | // ERC20 Methods 125 | /////////////////// 126 | 127 | /// @notice Send `_amount` tokens to `_to` from `msg.sender` 128 | /// @param _to The address of the recipient 129 | /// @param _amount The amount of tokens to be transferred 130 | /// @return Whether the transfer was successful or not 131 | function transfer(address _to, uint256 _amount) public returns (bool success) { 132 | require(transfersEnabled); 133 | doTransfer(msg.sender, _to, _amount); 134 | return true; 135 | } 136 | 137 | /// @notice Send `_amount` tokens to `_to` from `_from` on the condition it 138 | /// is approved by `_from` 139 | /// @param _from The address holding the tokens being transferred 140 | /// @param _to The address of the recipient 141 | /// @param _amount The amount of tokens to be transferred 142 | /// @return True if the transfer was successful 143 | function transferFrom(address _from, address _to, uint256 _amount 144 | ) public returns (bool success) { 145 | 146 | // The controller of this contract can move tokens around at will, 147 | // this is important to recognize! Confirm that you trust the 148 | // controller of this contract, which in most situations should be 149 | // another open source smart contract or 0x0 150 | if (msg.sender != controller) { 151 | require(transfersEnabled); 152 | 153 | // The standard ERC 20 transferFrom functionality 154 | require(allowed[_from][msg.sender] >= _amount); 155 | allowed[_from][msg.sender] -= _amount; 156 | } 157 | doTransfer(_from, _to, _amount); 158 | return true; 159 | } 160 | 161 | /// @dev This is the actual transfer function in the token contract, it can 162 | /// only be called by other functions in this contract. 163 | /// @param _from The address holding the tokens being transferred 164 | /// @param _to The address of the recipient 165 | /// @param _amount The amount of tokens to be transferred 166 | /// @return True if the transfer was successful 167 | function doTransfer(address _from, address _to, uint _amount 168 | ) internal { 169 | 170 | if (_amount == 0) { 171 | Transfer(_from, _to, _amount); // Follow the spec to louch the event when transfer 0 172 | return; 173 | } 174 | 175 | require(parentSnapShotBlock < block.number); 176 | 177 | // Do not allow transfer to 0x0 or the token contract itself 178 | require((_to != 0) && (_to != address(this))); 179 | 180 | // If the amount being transfered is more than the balance of the 181 | // account the transfer throws 182 | var previousBalanceFrom = balanceOfAt(_from, block.number); 183 | 184 | require(previousBalanceFrom >= _amount); 185 | 186 | // Alerts the token controller of the transfer 187 | if (isContract(controller)) { 188 | require(TokenController(controller).onTransfer(_from, _to, _amount)); 189 | } 190 | 191 | // First update the balance array with the new value for the address 192 | // sending the tokens 193 | updateValueAtNow(balances[_from], previousBalanceFrom - _amount); 194 | 195 | // Then update the balance array with the new value for the address 196 | // receiving the tokens 197 | var previousBalanceTo = balanceOfAt(_to, block.number); 198 | require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow 199 | updateValueAtNow(balances[_to], previousBalanceTo + _amount); 200 | 201 | // An event to make the transfer easy to find on the blockchain 202 | Transfer(_from, _to, _amount); 203 | 204 | } 205 | 206 | /// @param _owner The address that's balance is being requested 207 | /// @return The balance of `_owner` at the current block 208 | function balanceOf(address _owner) public constant returns (uint256 balance) { 209 | return balanceOfAt(_owner, block.number); 210 | } 211 | 212 | /// @notice `msg.sender` approves `_spender` to spend `_amount` tokens on 213 | /// its behalf. This is a modified version of the ERC20 approve function 214 | /// to be a little bit safer 215 | /// @param _spender The address of the account able to transfer the tokens 216 | /// @param _amount The amount of tokens to be approved for transfer 217 | /// @return True if the approval was successful 218 | function approve(address _spender, uint256 _amount) public returns (bool success) { 219 | require(transfersEnabled); 220 | 221 | // To change the approve amount you first have to reduce the addresses` 222 | // allowance to zero by calling `approve(_spender,0)` if it is not 223 | // already 0 to mitigate the race condition described here: 224 | // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 225 | require((_amount == 0) || (allowed[msg.sender][_spender] == 0)); 226 | 227 | // Alerts the token controller of the approve function call 228 | if (isContract(controller)) { 229 | require(TokenController(controller).onApprove(msg.sender, _spender, _amount)); 230 | } 231 | 232 | allowed[msg.sender][_spender] = _amount; 233 | Approval(msg.sender, _spender, _amount); 234 | return true; 235 | } 236 | 237 | /// @dev This function makes it easy to read the `allowed[]` map 238 | /// @param _owner The address of the account that owns the token 239 | /// @param _spender The address of the account able to transfer the tokens 240 | /// @return Amount of remaining tokens of _owner that _spender is allowed 241 | /// to spend 242 | function allowance(address _owner, address _spender 243 | ) public constant returns (uint256 remaining) { 244 | return allowed[_owner][_spender]; 245 | } 246 | 247 | /// @notice `msg.sender` approves `_spender` to send `_amount` tokens on 248 | /// its behalf, and then a function is triggered in the contract that is 249 | /// being approved, `_spender`. This allows users to use their tokens to 250 | /// interact with contracts in one function call instead of two 251 | /// @param _spender The address of the contract able to transfer the tokens 252 | /// @param _amount The amount of tokens to be approved for transfer 253 | /// @return True if the function call was successful 254 | function approveAndCall(address _spender, uint256 _amount, bytes _extraData 255 | ) public returns (bool success) { 256 | require(approve(_spender, _amount)); 257 | 258 | ApproveAndCallFallBack(_spender).receiveApproval( 259 | msg.sender, 260 | _amount, 261 | this, 262 | _extraData 263 | ); 264 | 265 | return true; 266 | } 267 | 268 | /// @dev This function makes it easy to get the total number of tokens 269 | /// @return The total number of tokens 270 | function totalSupply() public constant returns (uint) { 271 | return totalSupplyAt(block.number); 272 | } 273 | 274 | 275 | //////////////// 276 | // Query balance and totalSupply in History 277 | //////////////// 278 | 279 | /// @dev Queries the balance of `_owner` at a specific `_blockNumber` 280 | /// @param _owner The address from which the balance will be retrieved 281 | /// @param _blockNumber The block number when the balance is queried 282 | /// @return The balance at `_blockNumber` 283 | function balanceOfAt(address _owner, uint _blockNumber) public constant 284 | returns (uint) { 285 | 286 | // These next few lines are used when the balance of the token is 287 | // requested before a check point was ever created for this token, it 288 | // requires that the `parentToken.balanceOfAt` be queried at the 289 | // genesis block for that token as this contains initial balance of 290 | // this token 291 | if ((balances[_owner].length == 0) 292 | || (balances[_owner][0].fromBlock > _blockNumber)) { 293 | if (address(parentToken) != 0) { 294 | return parentToken.balanceOfAt(_owner, min(_blockNumber, parentSnapShotBlock)); 295 | } else { 296 | // Has no parent 297 | return 0; 298 | } 299 | 300 | // This will return the expected balance during normal situations 301 | } else { 302 | return getValueAt(balances[_owner], _blockNumber); 303 | } 304 | } 305 | 306 | /// @notice Total amount of tokens at a specific `_blockNumber`. 307 | /// @param _blockNumber The block number when the totalSupply is queried 308 | /// @return The total amount of tokens at `_blockNumber` 309 | function totalSupplyAt(uint _blockNumber) public constant returns(uint) { 310 | 311 | // These next few lines are used when the totalSupply of the token is 312 | // requested before a check point was ever created for this token, it 313 | // requires that the `parentToken.totalSupplyAt` be queried at the 314 | // genesis block for this token as that contains totalSupply of this 315 | // token at this block number. 316 | if ((totalSupplyHistory.length == 0) 317 | || (totalSupplyHistory[0].fromBlock > _blockNumber)) { 318 | if (address(parentToken) != 0) { 319 | return parentToken.totalSupplyAt(min(_blockNumber, parentSnapShotBlock)); 320 | } else { 321 | return 0; 322 | } 323 | 324 | // This will return the expected totalSupply during normal situations 325 | } else { 326 | return getValueAt(totalSupplyHistory, _blockNumber); 327 | } 328 | } 329 | 330 | //////////////// 331 | // Clone Token Method 332 | //////////////// 333 | 334 | /// @notice Creates a new clone token with the initial distribution being 335 | /// this token at `_snapshotBlock` 336 | /// @param _cloneTokenName Name of the clone token 337 | /// @param _cloneDecimalUnits Number of decimals of the smallest unit 338 | /// @param _cloneTokenSymbol Symbol of the clone token 339 | /// @param _snapshotBlock Block when the distribution of the parent token is 340 | /// copied to set the initial distribution of the new clone token; 341 | /// if the block is zero than the actual block, the current block is used 342 | /// @param _transfersEnabled True if transfers are allowed in the clone 343 | /// @return The address of the new MiniMeToken Contract 344 | function createCloneToken( 345 | string _cloneTokenName, 346 | uint8 _cloneDecimalUnits, 347 | string _cloneTokenSymbol, 348 | uint _snapshotBlock, 349 | bool _transfersEnabled 350 | ) public returns(address) { 351 | if (_snapshotBlock == 0) _snapshotBlock = block.number; 352 | MiniMeToken cloneToken = tokenFactory.createCloneToken( 353 | this, 354 | _snapshotBlock, 355 | _cloneTokenName, 356 | _cloneDecimalUnits, 357 | _cloneTokenSymbol, 358 | _transfersEnabled 359 | ); 360 | 361 | cloneToken.changeController(msg.sender); 362 | 363 | // An event to make the token easy to find on the blockchain 364 | NewCloneToken(address(cloneToken), _snapshotBlock); 365 | return address(cloneToken); 366 | } 367 | 368 | //////////////// 369 | // Generate and destroy tokens 370 | //////////////// 371 | 372 | /// @notice Generates `_amount` tokens that are assigned to `_owner` 373 | /// @param _owner The address that will be assigned the new tokens 374 | /// @param _amount The quantity of tokens generated 375 | /// @return True if the tokens are generated correctly 376 | function generateTokens(address _owner, uint _amount 377 | ) public onlyController returns (bool) { 378 | uint curTotalSupply = totalSupply(); 379 | require(curTotalSupply + _amount >= curTotalSupply); // Check for overflow 380 | uint previousBalanceTo = balanceOf(_owner); 381 | require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow 382 | updateValueAtNow(totalSupplyHistory, curTotalSupply + _amount); 383 | updateValueAtNow(balances[_owner], previousBalanceTo + _amount); 384 | Transfer(0, _owner, _amount); 385 | return true; 386 | } 387 | 388 | 389 | /// @notice Burns `_amount` tokens from `_owner` 390 | /// @param _owner The address that will lose the tokens 391 | /// @param _amount The quantity of tokens to burn 392 | /// @return True if the tokens are burned correctly 393 | function destroyTokens(address _owner, uint _amount 394 | ) onlyController public returns (bool) { 395 | uint curTotalSupply = totalSupply(); 396 | require(curTotalSupply >= _amount); 397 | uint previousBalanceFrom = balanceOf(_owner); 398 | require(previousBalanceFrom >= _amount); 399 | updateValueAtNow(totalSupplyHistory, curTotalSupply - _amount); 400 | updateValueAtNow(balances[_owner], previousBalanceFrom - _amount); 401 | Transfer(_owner, 0, _amount); 402 | return true; 403 | } 404 | 405 | //////////////// 406 | // Enable tokens transfers 407 | //////////////// 408 | 409 | 410 | /// @notice Enables token holders to transfer their tokens freely if true 411 | /// @param _transfersEnabled True if transfers are allowed in the clone 412 | function enableTransfers(bool _transfersEnabled) public onlyController { 413 | transfersEnabled = _transfersEnabled; 414 | } 415 | 416 | //////////////// 417 | // Internal helper functions to query and set a value in a snapshot array 418 | //////////////// 419 | 420 | /// @dev `getValueAt` retrieves the number of tokens at a given block number 421 | /// @param checkpoints The history of values being queried 422 | /// @param _block The block number to retrieve the value at 423 | /// @return The number of tokens being queried 424 | function getValueAt(Checkpoint[] storage checkpoints, uint _block 425 | ) constant internal returns (uint) { 426 | if (checkpoints.length == 0) return 0; 427 | 428 | // Shortcut for the actual value 429 | if (_block >= checkpoints[checkpoints.length-1].fromBlock) 430 | return checkpoints[checkpoints.length-1].value; 431 | if (_block < checkpoints[0].fromBlock) return 0; 432 | 433 | // Binary search of the value in the array 434 | uint min = 0; 435 | uint max = checkpoints.length-1; 436 | while (max > min) { 437 | uint mid = (max + min + 1)/ 2; 438 | if (checkpoints[mid].fromBlock<=_block) { 439 | min = mid; 440 | } else { 441 | max = mid-1; 442 | } 443 | } 444 | return checkpoints[min].value; 445 | } 446 | 447 | /// @dev `updateValueAtNow` used to update the `balances` map and the 448 | /// `totalSupplyHistory` 449 | /// @param checkpoints The history of data being updated 450 | /// @param _value The new number of tokens 451 | function updateValueAtNow(Checkpoint[] storage checkpoints, uint _value 452 | ) internal { 453 | if ((checkpoints.length == 0) 454 | || (checkpoints[checkpoints.length -1].fromBlock < block.number)) { 455 | Checkpoint storage newCheckPoint = checkpoints[ checkpoints.length++ ]; 456 | newCheckPoint.fromBlock = uint128(block.number); 457 | newCheckPoint.value = uint128(_value); 458 | } else { 459 | Checkpoint storage oldCheckPoint = checkpoints[checkpoints.length-1]; 460 | oldCheckPoint.value = uint128(_value); 461 | } 462 | } 463 | 464 | /// @dev Internal function to determine if an address is a contract 465 | /// @param _addr The address being queried 466 | /// @return True if `_addr` is a contract 467 | function isContract(address _addr) constant internal returns(bool) { 468 | uint size; 469 | if (_addr == 0) return false; 470 | assembly { 471 | size := extcodesize(_addr) 472 | } 473 | return size>0; 474 | } 475 | 476 | /// @dev Helper function to return a min betwen the two uints 477 | function min(uint a, uint b) pure internal returns (uint) { 478 | return a < b ? a : b; 479 | } 480 | 481 | /// @notice The fallback function: If the contract's controller has not been 482 | /// set to 0, then the `proxyPayment` method is called which relays the 483 | /// ether and creates tokens as described in the token controller contract 484 | function () public payable { 485 | require(isContract(controller)); 486 | require(TokenController(controller).proxyPayment.value(msg.value)(msg.sender)); 487 | } 488 | 489 | ////////// 490 | // Safety Methods 491 | ////////// 492 | 493 | /// @notice This method can be used by the controller to extract mistakenly 494 | /// sent tokens to this contract. 495 | /// @param _token The address of the token contract that you want to recover 496 | /// set to 0 in case you want to extract ether. 497 | function claimTokens(address _token) public onlyController { 498 | if (_token == 0x0) { 499 | controller.transfer(this.balance); 500 | return; 501 | } 502 | 503 | MiniMeToken token = MiniMeToken(_token); 504 | uint balance = token.balanceOf(this); 505 | token.transfer(controller, balance); 506 | ClaimedTokens(_token, controller, balance); 507 | } 508 | 509 | //////////////// 510 | // Events 511 | //////////////// 512 | event ClaimedTokens(address indexed _token, address indexed _controller, uint _amount); 513 | event Transfer(address indexed _from, address indexed _to, uint256 _amount); 514 | event NewCloneToken(address indexed _cloneToken, uint _snapshotBlock); 515 | event Approval( 516 | address indexed _owner, 517 | address indexed _spender, 518 | uint256 _amount 519 | ); 520 | 521 | } 522 | 523 | 524 | //////////////// 525 | // MiniMeTokenFactory 526 | //////////////// 527 | 528 | /// @dev This contract is used to generate clone contracts from a contract. 529 | /// In solidity this is the way to create a contract from a contract of the 530 | /// same class 531 | contract MiniMeTokenFactory { 532 | 533 | /// @notice Update the DApp by creating a new token with new functionalities 534 | /// the msg.sender becomes the controller of this clone token 535 | /// @param _parentToken Address of the token being cloned 536 | /// @param _snapshotBlock Block of the parent token that will 537 | /// determine the initial distribution of the clone token 538 | /// @param _tokenName Name of the new token 539 | /// @param _decimalUnits Number of decimals of the new token 540 | /// @param _tokenSymbol Token Symbol for the new token 541 | /// @param _transfersEnabled If true, tokens will be able to be transferred 542 | /// @return The address of the new token contract 543 | function createCloneToken( 544 | address _parentToken, 545 | uint _snapshotBlock, 546 | string _tokenName, 547 | uint8 _decimalUnits, 548 | string _tokenSymbol, 549 | bool _transfersEnabled 550 | ) public returns (MiniMeToken) { 551 | MiniMeToken newToken = new MiniMeToken( 552 | this, 553 | _parentToken, 554 | _snapshotBlock, 555 | _tokenName, 556 | _decimalUnits, 557 | _tokenSymbol, 558 | _transfersEnabled 559 | ); 560 | 561 | newToken.changeController(msg.sender); 562 | return newToken; 563 | } 564 | } 565 | -------------------------------------------------------------------------------- /contracts/SampleCampaign-TokenController.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.6; 2 | 3 | /* 4 | Copyright 2017, Jordi Baylina 5 | 6 | This program is free software: you can redistribute it and/or modify 7 | it under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | This program is distributed in the hope that it will be useful, 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | GNU General Public License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with this program. If not, see . 18 | */ 19 | 20 | /// @title MilestoneTracker Contract 21 | /// @author Jordi Baylina 22 | /// @dev This contract controls the issuance of tokens for the MiniMe Token 23 | /// Contract. This version specifically acts as a Campaign manager for raising 24 | /// funds for non-profit causes, but it can be customized for any variety of 25 | /// purposes. 26 | 27 | import "MiniMeToken.sol"; 28 | 29 | 30 | /// @dev `Owned` is a base level contract that assigns an `owner` that can be 31 | /// later changed 32 | contract Owned { 33 | /// @dev `owner` is the only address that can call a function with this 34 | /// modifier 35 | modifier onlyOwner { require (msg.sender == owner); _; } 36 | 37 | address public owner; 38 | 39 | /// @notice The Constructor assigns the message sender to be `owner` 40 | function Owned() { owner = msg.sender;} 41 | 42 | /// @notice `owner` can step down and assign some other address to this role 43 | /// @param _newOwner The address of the new owner. 0x0 can be used to create 44 | /// an unowned neutral vault, however that cannot be undone 45 | function changeOwner(address _newOwner) onlyOwner { 46 | owner = _newOwner; 47 | } 48 | } 49 | 50 | 51 | /// @dev This is designed to control the issuance of a MiniMe Token for a 52 | /// non-profit Campaign. This contract effectively dictates the terms of the 53 | /// funding round. 54 | 55 | contract Campaign is TokenController, Owned { 56 | 57 | uint public startFundingTime; // In UNIX Time Format 58 | uint public endFundingTime; // In UNIX Time Format 59 | uint public maximumFunding; // In wei 60 | uint public totalCollected; // In wei 61 | MiniMeToken public tokenContract; // The new token for this Campaign 62 | address public vaultAddress; // The address to hold the funds donated 63 | 64 | /// @notice 'Campaign()' initiates the Campaign by setting its funding 65 | /// parameters 66 | /// @dev There are several checks to make sure the parameters are acceptable 67 | /// @param _startFundingTime The UNIX time that the Campaign will be able to 68 | /// start receiving funds 69 | /// @param _endFundingTime The UNIX time that the Campaign will stop being able 70 | /// to receive funds 71 | /// @param _maximumFunding In wei, the Maximum amount that the Campaign can 72 | /// receive (currently the max is set at 10,000 ETH for the beta) 73 | /// @param _vaultAddress The address that will store the donated funds 74 | /// @param _tokenAddress Address of the token contract this contract controls 75 | 76 | function Campaign( 77 | uint _startFundingTime, 78 | uint _endFundingTime, 79 | uint _maximumFunding, 80 | address _vaultAddress, 81 | address _tokenAddress 82 | 83 | ) { 84 | require ((_endFundingTime >= now) && // Cannot end in the past 85 | (_endFundingTime > _startFundingTime) && 86 | (_maximumFunding <= 10000 ether) && // The Beta is limited 87 | (_vaultAddress != 0)); // To prevent burning ETH 88 | startFundingTime = _startFundingTime; 89 | endFundingTime = _endFundingTime; 90 | maximumFunding = _maximumFunding; 91 | tokenContract = MiniMeToken(_tokenAddress);// The Deployed Token Contract 92 | vaultAddress = _vaultAddress; 93 | } 94 | 95 | /// @dev The fallback function is called when ether is sent to the contract, it 96 | /// simply calls `doPayment()` with the address that sent the ether as the 97 | /// `_owner`. Payable is a required solidity modifier for functions to receive 98 | /// ether, without this modifier functions will throw if ether is sent to them 99 | 100 | function () payable { 101 | doPayment(msg.sender); 102 | } 103 | 104 | ///////////////// 105 | // TokenController interface 106 | ///////////////// 107 | 108 | /// @notice `proxyPayment()` allows the caller to send ether to the Campaign and 109 | /// have the tokens created in an address of their choosing 110 | /// @param _owner The address that will hold the newly created tokens 111 | 112 | function proxyPayment(address _owner) payable returns(bool) { 113 | doPayment(_owner); 114 | return true; 115 | } 116 | 117 | /// @notice Notifies the controller about a transfer, for this Campaign all 118 | /// transfers are allowed by default and no extra notifications are needed 119 | /// @param _from The origin of the transfer 120 | /// @param _to The destination of the transfer 121 | /// @param _amount The amount of the transfer 122 | /// @return False if the controller does not authorize the transfer 123 | function onTransfer(address _from, address _to, uint _amount) returns(bool) { 124 | return true; 125 | } 126 | 127 | /// @notice Notifies the controller about an approval, for this Campaign all 128 | /// approvals are allowed by default and no extra notifications are needed 129 | /// @param _owner The address that calls `approve()` 130 | /// @param _spender The spender in the `approve()` call 131 | /// @param _amount The amount in the `approve()` call 132 | /// @return False if the controller does not authorize the approval 133 | function onApprove(address _owner, address _spender, uint _amount) 134 | returns(bool) 135 | { 136 | return true; 137 | } 138 | 139 | 140 | /// @dev `doPayment()` is an internal function that sends the ether that this 141 | /// contract receives to the `vault` and creates tokens in the address of the 142 | /// `_owner` assuming the Campaign is still accepting funds 143 | /// @param _owner The address that will hold the newly created tokens 144 | 145 | function doPayment(address _owner) internal { 146 | 147 | // First check that the Campaign is allowed to receive this donation 148 | require ((now >= startFundingTime) && 149 | (now <= endFundingTime) && 150 | (tokenContract.controller() != 0) && // Extra check 151 | (msg.value != 0) && 152 | (totalCollected + msg.value <= maximumFunding)); 153 | 154 | //Track how much the Campaign has collected 155 | totalCollected += msg.value; 156 | 157 | //Send the ether to the vault 158 | require (vaultAddress.send(msg.value)); 159 | 160 | // Creates an equal amount of tokens as ether sent. The new tokens are created 161 | // in the `_owner` address 162 | require (tokenContract.generateTokens(_owner, msg.value)); 163 | 164 | return; 165 | } 166 | 167 | /// @notice `finalizeFunding()` ends the Campaign by calling setting the 168 | /// controller to 0, thereby ending the issuance of new tokens and stopping the 169 | /// Campaign from receiving more ether 170 | /// @dev `finalizeFunding()` can only be called after the end of the funding period. 171 | 172 | function finalizeFunding() { 173 | require(now >= endFundingTime); 174 | tokenContract.changeController(0); 175 | } 176 | 177 | 178 | /// @notice `onlyOwner` changes the location that ether is sent 179 | /// @param _newVaultAddress The address that will receive the ether sent to this 180 | /// Campaign 181 | function setVault(address _newVaultAddress) onlyOwner { 182 | vaultAddress = _newVaultAddress; 183 | } 184 | 185 | } 186 | -------------------------------------------------------------------------------- /contracts/TokenController.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.18; 2 | 3 | /// @dev The token controller contract must implement these functions 4 | contract TokenController { 5 | /// @notice Called when `_owner` sends ether to the MiniMe Token contract 6 | /// @param _owner The address that sent the ether to create tokens 7 | /// @return True if the ether is accepted, false if it throws 8 | function proxyPayment(address _owner) public payable returns(bool); 9 | 10 | /// @notice Notifies the controller about a token transfer allowing the 11 | /// controller to react if desired 12 | /// @param _from The origin of the transfer 13 | /// @param _to The destination of the transfer 14 | /// @param _amount The amount of the transfer 15 | /// @return False if the controller does not authorize the transfer 16 | function onTransfer(address _from, address _to, uint _amount) public returns(bool); 17 | 18 | /// @notice Notifies the controller about an approval allowing the 19 | /// controller to react if desired 20 | /// @param _owner The address that calls `approve()` 21 | /// @param _spender The spender in the `approve()` call 22 | /// @param _amount The amount in the `approve()` call 23 | /// @return False if the controller does not authorize the approval 24 | function onApprove(address _owner, address _spender, uint _amount) public 25 | returns(bool); 26 | } 27 | -------------------------------------------------------------------------------- /env.js: -------------------------------------------------------------------------------- 1 | "use strict"; 2 | 3 | var Web3 = require('web3'); 4 | // create an instance of web3 using the HTTP provider. 5 | // NOTE in mist web3 is already available, so check first if its available before instantiating 6 | var web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545")); 7 | 8 | var BigNumber = require('bignumber.js'); 9 | 10 | var eth = web3.eth; 11 | var async = require('async'); 12 | 13 | var MiniMeToken = require('./dist/minimetoken.js'); 14 | 15 | var gcb = function(err, res) { 16 | if (err) { 17 | console.log("ERROR: "+err); 18 | } else { 19 | console.log(JSON.stringify(res,null,2)); 20 | } 21 | } 22 | 23 | var minimeToken; 24 | 25 | function deployExample(cb) { 26 | cb = cb || gcb; 27 | async.series([ 28 | function(cb) { 29 | MiniMeToken.deploy(web3, { 30 | tokenName: "MiniMe Test Token", 31 | decimalUnits: 18, 32 | tokenSymbol: "MMT", 33 | }, function(err, _minimeToken) { 34 | if (err) return err; 35 | minimeToken = _minimeToken; 36 | console.log("Minime Token: " + minimeToken.contract.address); 37 | cb(); 38 | }); 39 | }, 40 | function(cb) { 41 | minimeToken.generateTokens({ 42 | owner: eth.accounts[ 1 ], 43 | amount: 10, 44 | from: eth.accounts[ 0 ], 45 | },cb); 46 | }, 47 | ], cb); 48 | 49 | } 50 | -------------------------------------------------------------------------------- /funding.json: -------------------------------------------------------------------------------- 1 | { 2 | "opRetro": { 3 | "projectId": "0xe434930e189c807b137ff0d8e2fa6a95eaa57dde574143a02ca0d7fb31a40bea" 4 | } 5 | } 6 | -------------------------------------------------------------------------------- /index.js: -------------------------------------------------------------------------------- 1 | exports.MiniMeToken = require('./js/minimetoken'); 2 | exports.MiniMeTokenFactory = require('./js/minimetokenfactory'); 3 | exports.MiniMeTokenState = require('./js/minimetokenstate'); 4 | -------------------------------------------------------------------------------- /js/compile.js: -------------------------------------------------------------------------------- 1 | const ethConnector = require("ethconnector"); 2 | const path = require("path"); 3 | 4 | ethConnector.compile( 5 | path.join(__dirname, "../contracts/MiniMeToken.sol"), 6 | path.join(__dirname, "../contracts/MiniMeToken.sol.js"), 7 | (err) => { 8 | if (err) { 9 | console.log(err); 10 | process.exit(1); 11 | } else { 12 | process.exit(0); 13 | } 14 | }); 15 | -------------------------------------------------------------------------------- /js/minimetoken.js: -------------------------------------------------------------------------------- 1 | const MiniMeTokenAbi = require('../build/MiniMeToken.sol').MiniMeTokenAbi; 2 | const MiniMeTokenByteCode = require('../build/MiniMeToken.sol').MiniMeTokenByteCode; 3 | const generateClass = require('eth-contract-class').default; 4 | 5 | module.exports = generateClass(MiniMeTokenAbi, MiniMeTokenByteCode); 6 | -------------------------------------------------------------------------------- /js/minimetokenfactory.js: -------------------------------------------------------------------------------- 1 | const MiniMeTokenFactoryAbi = require('../build/MiniMeToken.sol').MiniMeTokenFactoryAbi; 2 | const MiniMeTokenFactoryByteCode = require('../build/MiniMeToken.sol').MiniMeTokenFactoryByteCode; 3 | const generateClass = require('eth-contract-class').default; 4 | 5 | module.exports = generateClass(MiniMeTokenFactoryAbi, MiniMeTokenFactoryByteCode); 6 | -------------------------------------------------------------------------------- /js/minimetokenstate.js: -------------------------------------------------------------------------------- 1 | class MiniMeTokenState { 2 | constructor(minimeToken) { 3 | this.$token = minimeToken; 4 | } 5 | 6 | async getState() { 7 | const st = { 8 | balances: {}, 9 | }; 10 | 11 | const res = await Promise.all([ 12 | this.$token.name(), 13 | this.$token.decimals(), 14 | this.$token.controller(), 15 | this.$token.totalSupply(), 16 | this.$token.parentToken(), 17 | this.$token.controller(), 18 | this.$token.parentSnapShotBlock(), 19 | this.$token.$web3.eth.getAccounts(), 20 | ]); 21 | 22 | st.name = res[0]; 23 | st.decimals = res[1]; 24 | st.controller = res[2]; 25 | st.totalSupply = res[3]; 26 | st.parentToken = res[4]; 27 | st.controller = res[5]; 28 | st.parentSnapShotBlock = res[6]; 29 | const accounts = res[7]; 30 | 31 | const calls = accounts.map(account => this.$token.balanceOf(account)); 32 | 33 | const balances = await Promise.all(calls); 34 | 35 | for (let i = 0; i < accounts.length; i += 1) { 36 | st.balances[accounts[i]] = balances[i]; 37 | } 38 | 39 | return st; 40 | } 41 | } 42 | 43 | module.exports = MiniMeTokenState; 44 | 45 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "minimetoken", 3 | "version": "0.2.0", 4 | "description": "MiniMe contract", 5 | "main": "dist/minimetoken.js", 6 | "directories": { 7 | "test": "test" 8 | }, 9 | "scripts": { 10 | "build": "solcpiler", 11 | "test": "solcpiler; mocha --harmony" 12 | }, 13 | "repository": { 14 | "type": "git", 15 | "url": "https://github.com/Giveth/minime.git" 16 | }, 17 | "keywords": [ 18 | "dao", 19 | "solidity", 20 | "token", 21 | "charity", 22 | "smart", 23 | "contract", 24 | "minime", 25 | "giveth", 26 | "ethereum" 27 | ], 28 | "author": "Jordi Baylina", 29 | "license": "GPL-3.0", 30 | "bugs": { 31 | "url": "https://github.com/Giveth/minimi/issues" 32 | }, 33 | "homepage": "https://github.com/Giveth/minime", 34 | "dependencies": { 35 | "eth-contract-class": "0.0.6" 36 | }, 37 | "devDependencies": { 38 | "babel-eslint": "^7.2.3", 39 | "eslint-config-airbnb": "^15.0.1", 40 | "eslint-plugin-import": "^2.6.0", 41 | "eslint-plugin-jsx-a11y": "^6.0.2", 42 | "eslint-plugin-react": "^7.1.0", 43 | "ethereumjs-testrpc": "git://github.com/perissology/testrpc.git#81216dbc", 44 | "lerna": "^2.2.0", 45 | "random-bytes": "^1.0.0", 46 | "mocha": "^3.5.0", 47 | "solcpiler": "0.0.6", 48 | "web3": "git://github.com/perissology/web3.js.git#all_fixes", 49 | "chai": "^4.1.0" 50 | } 51 | } 52 | -------------------------------------------------------------------------------- /readme-header.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Giveth/minime/8e28ddcce80537a64ef511bed9d4a4394456f245/readme-header.png -------------------------------------------------------------------------------- /test/minimetoken_normal.js: -------------------------------------------------------------------------------- 1 | /* eslint-env mocha */ 2 | /* eslint-disable no-await-in-loop */ 3 | const TestRPC = require('ethereumjs-testrpc'); 4 | const Web3 = require('web3'); 5 | const chai = require('chai'); 6 | 7 | const MiniMeToken = require('../index.js').MiniMeToken; 8 | const MiniMeTokenFactory = require('../index.js').MiniMeTokenFactory; 9 | const MiniMeTokenState = require('../index.js').MiniMeTokenState; 10 | 11 | const assert = chai.assert; 12 | const { utils } = Web3; 13 | 14 | const verbose = false; 15 | 16 | const log = (S) => { 17 | if (verbose) { 18 | console.log(S); 19 | } 20 | }; 21 | 22 | // b[0] -> 0, 0, 0, 0 23 | // b[1] -> 0,10, 0, 0 24 | // b[2] -> 0, 8, 2, 0 25 | // b[3] -> 0, 9, 1, 0 26 | // b[4] -> 0, 6, 1, 0 27 | // Clone token 28 | // b[5] -> 0, 6, 1, 0 29 | // b[6] -> 0, 2, 5. 0 30 | 31 | describe('MiniMeToken test', () => { 32 | let testrpc; 33 | let web3; 34 | let accounts; 35 | let miniMeToken; 36 | let miniMeTokenState; 37 | let miniMeTokenClone; 38 | let miniMeTokenCloneState; 39 | const b = []; 40 | 41 | before(async () => { 42 | testrpc = TestRPC.server({ 43 | ws: true, 44 | gasLimit: 5800000, 45 | total_accounts: 10, 46 | }); 47 | 48 | testrpc.listen(8546, '127.0.0.1'); 49 | 50 | web3 = new Web3('ws://localhost:8546'); 51 | accounts = await web3.eth.getAccounts(); 52 | }); 53 | 54 | after((done) => { 55 | testrpc.close(); 56 | done(); 57 | }); 58 | 59 | it('should deploy all the contracts', async () => { 60 | const tokenFactory = await MiniMeTokenFactory.new(web3); 61 | miniMeToken = await MiniMeToken.new(web3, 62 | tokenFactory.$address, 63 | 0, 64 | 0, 65 | 'MiniMe Test Token', 66 | 18, 67 | 'MMT', 68 | true); 69 | assert.ok(miniMeToken.$address); 70 | miniMeTokenState = new MiniMeTokenState(miniMeToken); 71 | }).timeout(20000); 72 | 73 | it('Should generate tokens for address 1', async () => { 74 | b[0] = await web3.eth.getBlockNumber(); 75 | log(`b[0]-> ${b[0]}`); 76 | 77 | await miniMeToken.generateTokens(accounts[1], 10); 78 | const st = await miniMeTokenState.getState(); 79 | assert.equal(st.totalSupply, 10); 80 | assert.equal(st.balances[accounts[1]], 10); 81 | b[1] = await web3.eth.getBlockNumber(); 82 | }).timeout(6000); 83 | 84 | it('Should transfer tokens from address 1 to address 2', async () => { 85 | await miniMeToken.transfer(accounts[2], 2, { from: accounts[1], gas: 200000 }); 86 | b[2] = await web3.eth.getBlockNumber(); 87 | log(`b[2]-> ${b[3]}`); 88 | const st = await miniMeTokenState.getState(); 89 | assert.equal(st.totalSupply, 10); 90 | assert.equal(st.balances[accounts[1]], 8); 91 | assert.equal(st.balances[accounts[2]], 2); 92 | 93 | const balance = await miniMeToken.balanceOfAt(accounts[1], b[1]); 94 | assert.equal(balance, 10); 95 | }).timeout(6000); 96 | 97 | it('Should allow and transfer tokens from address 2 to address 1 allowed to 3', async () => { 98 | await miniMeToken.approve(accounts[3], 2, { from: accounts[2] }); 99 | const allowed = await miniMeToken.allowance(accounts[2], accounts[3]); 100 | assert.equal(allowed, 2); 101 | 102 | await miniMeToken.transferFrom(accounts[2], accounts[1], 1, { from: accounts[3] }); 103 | 104 | const allowed2 = await miniMeToken.allowance(accounts[2], accounts[3]); 105 | assert.equal(allowed2, 1); 106 | 107 | b[3] = await web3.eth.getBlockNumber(); 108 | log(`b[3]-> ${b[3]}`); 109 | const st = await miniMeTokenState.getState(); 110 | assert.equal(st.totalSupply, 10); 111 | assert.equal(st.balances[accounts[1]], 9); 112 | assert.equal(st.balances[accounts[2]], 1); 113 | 114 | let balance; 115 | 116 | balance = await miniMeToken.balanceOfAt(accounts[1], b[2]); 117 | assert.equal(balance, 8); 118 | balance = await miniMeToken.balanceOfAt(accounts[2], b[2]); 119 | assert.equal(balance, 2); 120 | balance = await miniMeToken.balanceOfAt(accounts[1], b[1]); 121 | assert.equal(balance, 10); 122 | balance = await miniMeToken.balanceOfAt(accounts[2], b[1]); 123 | assert.equal(balance, 0); 124 | balance = await miniMeToken.balanceOfAt(accounts[1], b[0]); 125 | assert.equal(balance, 0); 126 | balance = await miniMeToken.balanceOfAt(accounts[2], b[0]); 127 | assert.equal(balance, 0); 128 | balance = await miniMeToken.balanceOfAt(accounts[1], 0); 129 | assert.equal(balance, 0); 130 | balance = await miniMeToken.balanceOfAt(accounts[2], 0); 131 | assert.equal(balance, 0); 132 | }); 133 | 134 | it('Should Destroy 3 tokens from 1 and 1 from 2', async () => { 135 | await miniMeToken.destroyTokens(accounts[1], 3, { from: accounts[0], gas: 200000 }); 136 | b[4] = await web3.eth.getBlockNumber(); 137 | log(`b[4]-> ${b[4]}`); 138 | const st = await miniMeTokenState.getState(); 139 | assert.equal(st.totalSupply, 7); 140 | assert.equal(st.balances[accounts[1]], 6); 141 | }); 142 | 143 | it('Should Create the clone token', async () => { 144 | const miniMeTokenCloneTx = await miniMeToken.createCloneToken( 145 | 'Clone Token 1', 146 | 18, 147 | 'MMTc', 148 | 0, 149 | true); 150 | 151 | let addr = miniMeTokenCloneTx.events.NewCloneToken.raw.topics[1]; 152 | addr = `0x${addr.slice(26)}`; 153 | addr = utils.toChecksumAddress(addr); 154 | miniMeTokenClone = new MiniMeToken(web3, addr); 155 | 156 | miniMeTokenCloneState = new MiniMeTokenState(miniMeTokenClone); 157 | 158 | b[5] = await web3.eth.getBlockNumber(); 159 | log(`b[5]-> ${b[5]}`); 160 | const st = await miniMeTokenCloneState.getState(); 161 | 162 | assert.equal(st.parentToken, miniMeToken.$address); 163 | assert.equal(st.parentSnapShotBlock, b[5]); 164 | assert.equal(st.totalSupply, 7); 165 | assert.equal(st.balances[accounts[1]], 6); 166 | 167 | const totalSupply = await miniMeTokenClone.totalSupplyAt(b[4]); 168 | 169 | assert.equal(totalSupply, 7); 170 | 171 | const balance = await miniMeTokenClone.balanceOfAt(accounts[2], b[4]); 172 | assert.equal(balance, 1); 173 | }).timeout(6000); 174 | 175 | it('Should mine one block to take effect clone', async () => { 176 | await miniMeToken.transfer(accounts[1], 1, { from: accounts[1] }); 177 | }); 178 | 179 | it('Should move tokens in the clone token from 2 to 3', async () => { 180 | await miniMeTokenClone.transfer(accounts[2], 4, { from: accounts[1] }); 181 | b[6] = await web3.eth.getBlockNumber(); 182 | log(`b[6]-> ${b[6]}`); 183 | 184 | const st = await miniMeTokenCloneState.getState(); 185 | assert.equal(st.totalSupply, 7); 186 | assert.equal(st.balances[accounts[1]], 2); 187 | assert.equal(st.balances[accounts[2]], 5); 188 | 189 | let balance; 190 | 191 | balance = await miniMeToken.balanceOfAt(accounts[1], b[5]); 192 | assert.equal(balance, 6); 193 | balance = await miniMeToken.balanceOfAt(accounts[2], b[5]); 194 | assert.equal(balance, 1); 195 | balance = await miniMeTokenClone.balanceOfAt(accounts[1], b[5]); 196 | assert.equal(balance, 6); 197 | balance = await miniMeTokenClone.balanceOfAt(accounts[2], b[5]); 198 | assert.equal(balance, 1); 199 | balance = await miniMeTokenClone.balanceOfAt(accounts[1], b[4]); 200 | assert.equal(balance, 6); 201 | balance = await miniMeTokenClone.balanceOfAt(accounts[2], b[4]); 202 | assert.equal(balance, 1); 203 | 204 | let totalSupply; 205 | totalSupply = await miniMeTokenClone.totalSupplyAt(b[5]); 206 | assert.equal(totalSupply, 7); 207 | totalSupply = await miniMeTokenClone.totalSupplyAt(b[4]); 208 | assert.equal(totalSupply, 7); 209 | }).timeout(6000); 210 | 211 | it('Should create tokens in the child token', async () => { 212 | await miniMeTokenClone.generateTokens(accounts[1], 10, { from: accounts[0], gas: 300000 }); 213 | const st = await miniMeTokenCloneState.getState(); 214 | assert.equal(st.totalSupply, 17); 215 | assert.equal(st.balances[accounts[1]], 12); 216 | assert.equal(st.balances[accounts[2]], 5); 217 | }); 218 | }); 219 | --------------------------------------------------------------------------------