├── .gitignore ├── LICENSE ├── README.md ├── build.gradle ├── contracts ├── RaidenMicroTransferChannels.sol ├── Token.sol ├── lib │ └── ECVerify.sol └── test │ ├── CustomToken.sol │ ├── ERC223ReceivingContract.sol │ └── StandardToken.sol ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── rm-ethereum.conf ├── settings.gradle └── src ├── main └── java │ ├── Http.java │ ├── MicroRaiden.java │ ├── Utility.java │ └── Wallet.java └── test └── java └── MicroRaidenTest.java /.gitignore: -------------------------------------------------------------------------------- 1 | 2 | # Created by https://www.gitignore.io/api/gradle,eclipse 3 | 4 | ### Eclipse ### 5 | 6 | .metadata 7 | bin/ 8 | tmp/ 9 | *.tmp 10 | *.bak 11 | *.swp 12 | *~.nib 13 | *.pkey 14 | local.properties 15 | .settings/ 16 | .loadpath 17 | .recommenders 18 | 19 | # External tool builders 20 | .externalToolBuilders/ 21 | 22 | # Locally stored "Eclipse launch configurations" 23 | *.launch 24 | 25 | # PyDev specific (Python IDE for Eclipse) 26 | *.pydevproject 27 | 28 | # CDT-specific (C/C++ Development Tooling) 29 | .cproject 30 | 31 | # Java annotation processor (APT) 32 | .factorypath 33 | 34 | # PDT-specific (PHP Development Tools) 35 | .buildpath 36 | 37 | # sbteclipse plugin 38 | .target 39 | 40 | # Tern plugin 41 | .tern-project 42 | 43 | # TeXlipse plugin 44 | .texlipse 45 | 46 | # STS (Spring Tool Suite) 47 | .springBeans 48 | 49 | # Code Recommenders 50 | .recommenders/ 51 | 52 | # Scala IDE specific (Scala & Java development for Eclipse) 53 | .cache-main 54 | .scala_dependencies 55 | .worksheet 56 | 57 | ### Eclipse Patch ### 58 | # Eclipse Core 59 | .project 60 | 61 | # JDT-specific (Eclipse Java Development Tools) 62 | .classpath 63 | 64 | ### Gradle ### 65 | .gradle 66 | **/build/ 67 | 68 | # Ignore Gradle GUI config 69 | gradle-app.setting 70 | 71 | # Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored) 72 | !gradle-wrapper.jar 73 | 74 | # Cache of project 75 | .gradletasknamecache 76 | 77 | # # Work around https://youtrack.jetbrains.com/issue/IDEA-116898 78 | # gradle/wrapper/gradle-wrapper.properties 79 | 80 | # End of https://www.gitignore.io/api/gradle,eclipse 81 | 82 | -------------------------------------------------------------------------------- /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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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ## About MicroRaiden Java 2 | Eventually the goal is a full port of the [µRaiden](https://github.com/raiden-network/microraiden) project from 3 | Python to Java. However, initially - we're aiming for the bare min 4 | functionality to support micropayment channels between two peers such 5 | that we can automatically deploy channels from one entity with some 6 | initial deposit supplied by the initiator of the channel. 7 | The current version of code has been tested with [Kovan](https://gitter.im/kovan-testnet/) testnet only for now. However, other testnet should also work after proper configurations. 8 | ## Prerequisites and Notes 9 | - Parity installation. More information about parity intallation can be found https://www.parity.io/. The version of parity being used is 1.8.4-beta. 10 | - Run your parity service with the following command: 11 | ``` 12 | parity --geth --chain kovan --force-ui --reseal-min-period 0 --jsonrpc-cors "*" --jsonrpc-apis web3,eth,net,parity,traces,rpc,personal 13 | ``` 14 | It may take a while to get syncronized. 15 | ## Working with the existing contracts deployed on Kovan. 16 | We have deployed the [CustomToken](https://kovan.etherscan.io/address/0x0fc373426c87f555715e6fe673b07fe9e7f0e6e7) and [RaidenMicroTransferChannels](https://kovan.etherscan.io/address/0x5832edf9Da129Aa13fdA0fBff93379d3ED8a4a93) contracts. The ABI and addresses have been added in the configuration file `rm-ethereum.conf` in this project. 17 | ### Building 18 | ``` 19 | ./gradlew installDist 20 | ``` 21 | ### Running 22 | ``` 23 | ./gradlew run 24 | ``` 25 | or 26 | ``` 27 | ./build/install/microraiden-java/bin/microraiden-java 28 | ``` 29 | ### Use createAccount command to create an account 30 | ``` 31 | ./build/install/microraiden-java/bin/microraiden-java createAccount Alice 32 | ``` 33 | This version of the project now is very basic. We do not take any credentials from you when creating the account. A file Alice.pkey should be created with private key shown in plaintext. 34 | ### Use getAccountInfo command to get the information of the new account 35 | ``` 36 | ./build/install/microraiden-java/bin/microraiden-java getAccountInfo Alice 37 | ``` 38 | If your parity service running correctly, you should see your AccountName, AccountID, AccountNonce, and AccountBalance. 39 | ### Get some free Kovan test Ethers 40 | Copy the AccountID and paste it [here](https://gitter.im/kovan-testnet/faucet). Wait a period of time until the test ethers have been given to your account. 41 | ### Get some Custom token by using buyToken command 42 | ``` 43 | ./build/install/microraiden-java/bin/microraiden-java buyToken Alice 0.1 44 | ``` 45 | ### Use getTokenBalance command to see the number of tokens in the account 46 | ``` 47 | ./build/install/microraiden-java/bin/microraiden-java getTokenBalance Alice 48 | ``` 49 | ### Create another new account as the payment recipient. 50 | ``` 51 | ./build/install/microraiden-java/bin/microraiden-java createAccount Bob 52 | ``` 53 | The token balance of Bob should be zero. 54 | ### Create a payment channel from Alice to Bob by using createChannel command 55 | ``` 56 | ./build/install/microraiden-java/bin/microraiden-java createChannel Alice Bob 30 57 | ``` 58 | Wait until the transaction has been mined. 59 | A channel key, a block number, and a URL should be shown in the terminal. The key can be used to see the created channel by pasting it into the `channels` field in the URL page. 60 | The token balance of Alice should be updated now since she puts 30 Tokens into the payment channel as deposit. However, Bob cannot receive it since the channel has not been closed. 61 | ### Close the payment channel and check the balances of Alice and Bob 62 | ``` 63 | ./build/install/microraiden-java/bin/microraiden-java closeChannelCooperatively Alice Alice Bob 5351492 12.5 64 | ``` 65 | The first `Alice` is the delegator who send the transcation to Kovan testnet. The second `Alice` and `Bob` are the token sender and receiver, respectively. `5351492` is the block number where the payment channel was created. `12.5` is the real amount of token that Alice eventually pays Bob. 66 | The token balances of Alice and Bob should be updated. 67 | ### Working with RightMesh library. 68 | All of these functions should work by signing transactions and relaying 69 | them into a superpeer. For now we'll just set the superpeer ip address 70 | but when integrated into RM, this part will be replaced by relaying it 71 | through the mesh to the superpeer. 72 | 73 | ## Working with your own token and develop a new channel contract 74 | - It is very important to noted that the ethererumj currently DOES NOT support the newest version of Solidity (0.4.19). Some of the new features in Solidity with version >= 0.4.16, such as key words `view` and `pure`, are not compatible when using ethereumj to parse the application binary interface (ABI) of the smart contract. In order to install a paticular version solidity compiler (e.g. 0.4.15), please use `brew` command as shown [here](http://solidity.readthedocs.io/en/develop/installing-solidity.html#binary-packages). 75 | - The smart contracts used in this project are not exactly the same as the smart contracts in µRaiden project. The smart contracts compatible with this project have been included in this repo already. 76 | - Users can use `populus` to compile and deploy them onto the testnet. Referring the steps and configurations [here](https://github.com/raiden-network/microraiden/blob/master/contracts/README.md#usage) is helpful. 77 | - After the smart contract deployment onto Kovan testnet, open file rm-ethereum.conf and update the address values. 78 | - The updated configuration now is ready to work with this project. 79 | - In order to see payment channels opened at your deployed smart contracts on Etherscan, you need to manusally assemble all pieces of solidity files and perform the solidity contract source code verification [here](https://etherscan.io/verifyContract). 80 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | /* 2 | * This build file was generated by the Gradle 'init' task. 3 | * 4 | * This generated file contains a sample Java project to get you started. 5 | * For more details take a look at the Java Quickstart chapter in the Gradle 6 | * user guide available at https://docs.gradle.org/4.3/userguide/tutorial_java_projects.html 7 | */ 8 | 9 | // Apply the java plugin to add support for Java 10 | apply plugin: 'java' 11 | 12 | // Apply the application plugin to add support for building an application 13 | apply plugin: 'application' 14 | 15 | // In this section you declare where to find the dependencies of your project 16 | repositories { 17 | // Use jcenter for resolving your dependencies. 18 | // You can declare any Maven/Ivy/file repository here. 19 | jcenter() 20 | mavenCentral() 21 | maven { 22 | url "https://dl.bintray.com/ethereum/maven/" 23 | } 24 | } 25 | 26 | dependencies { 27 | // https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient 28 | compile group: 'org.apache.httpcomponents', name: 'httpclient', version: '4.3.4' 29 | 30 | 31 | // This dependency is found on compile classpath of this component and consumers. 32 | compile 'com.google.guava:guava:23.0' 33 | 34 | // Use JUnit test framework 35 | testCompile 'junit:junit:4.12' 36 | 37 | // https://mvnrepository.com/artifact/org.ethereum/ethereumj-core 38 | implementation (group: 'org.ethereum', name: 'ethereumj-core', version: '1.4.5-RELEASE') 39 | 40 | // https://mvnrepository.com/artifact/commons-io/commons-io 41 | compile group: 'commons-io', name: 'commons-io', version: '2.5' 42 | 43 | // https://mvnrepository.com/artifact/com.googlecode.json-simple/json-simple 44 | compile group: 'com.googlecode.json-simple', name: 'json-simple', version: '1.1' 45 | 46 | // https://mvnrepository.com/artifact/org.kocakosm/pitaya 47 | compile group: 'org.kocakosm', name: 'pitaya', version: '0.4' 48 | 49 | // https://mvnrepository.com/artifact/org.whispersystems/signal-protocol-java 50 | compile group: 'org.whispersystems', name: 'signal-protocol-java', version: '2.4.0' 51 | 52 | // https://mvnrepository.com/artifact/com.lambdaworks/scrypt 53 | compile group: 'com.lambdaworks', name: 'scrypt', version: '1.4.0' 54 | 55 | 56 | } 57 | 58 | // Define the main class for the application 59 | mainClassName = 'MicroRaiden' 60 | 61 | -------------------------------------------------------------------------------- /contracts/RaidenMicroTransferChannels.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.15; 2 | 3 | import './Token.sol'; 4 | import './lib/ECVerify.sol'; 5 | 6 | /// @title Raiden MicroTransfer Channels Contract. 7 | contract RaidenMicroTransferChannels { 8 | 9 | /* 10 | * Data structures 11 | */ 12 | 13 | // Number of blocks to wait from an uncooperativeClose initiated by the sender 14 | // in order to give the receiver a chance to respond with a balance proof 15 | // in case the sender cheats. After the challenge period, the sender can settle 16 | // and delete the channel. 17 | uint32 public challenge_period; 18 | 19 | // Contract semantic version 20 | string public constant version = '0.1.0'; 21 | 22 | // We temporarily limit total token deposits in a channel to 100 tokens with 18 decimals. 23 | // This was calculated just for RDN with its current (as of 30/11/2017) price and should 24 | // not be considered to be the same for other tokens. 25 | // This is just for the bug bounty release, as a safety measure. 26 | uint256 public constant channel_deposit_bugbounty_limit = 10 ** 18 * 100; 27 | 28 | Token public token; 29 | 30 | mapping (bytes32 => Channel) public channels; 31 | mapping (bytes32 => ClosingRequest) public closing_requests; 32 | 33 | // 24 bytes (deposit) + 4 bytes (block number) 34 | struct Channel { 35 | // uint192 is the maximum uint size needed for deposit based on a 36 | // 10^8 * 10^18 token totalSupply. 37 | uint192 deposit; 38 | 39 | // Block number at which the channel was opened. Used in creating 40 | // a unique identifier for the channel between a sender and receiver. 41 | // Supports creation of multiple channels between the 2 parties and prevents 42 | // replay of messages in later channels. 43 | uint32 open_block_number; 44 | } 45 | 46 | // 24 bytes (deposit) + 4 bytes (block number) 47 | struct ClosingRequest { 48 | // Number of tokens owed by the sender when closing the channel. 49 | uint192 closing_balance; 50 | 51 | // Block number at which the challenge period ends, in case it has been initiated. 52 | uint32 settle_block_number; 53 | } 54 | 55 | /* 56 | * Events 57 | */ 58 | 59 | event ChannelCreated( 60 | address indexed _sender, 61 | address indexed _receiver, 62 | uint192 _deposit); 63 | event ChannelToppedUp ( 64 | address indexed _sender, 65 | address indexed _receiver, 66 | uint32 indexed _open_block_number, 67 | uint192 _added_deposit); 68 | event ChannelCloseRequested( 69 | address indexed _sender, 70 | address indexed _receiver, 71 | uint32 indexed _open_block_number, 72 | uint192 _balance); 73 | event ChannelSettled( 74 | address indexed _sender, 75 | address indexed _receiver, 76 | uint32 indexed _open_block_number, 77 | uint192 _balance); 78 | 79 | 80 | /* 81 | * Constructor 82 | */ 83 | 84 | /// @notice Constructor for creating the uRaiden microtransfer channels contract. 85 | /// @param _token_address The address of the Token used by the uRaiden contract. 86 | /// @param _challenge_period A fixed number of blocks representing the challenge period. 87 | /// We enforce a minimum of 500 blocks waiting period. 88 | /// after a sender requests the closing of the channel without the receiver's signature. 89 | function RaidenMicroTransferChannels(address _token_address, uint32 _challenge_period) public { 90 | require(_token_address != 0x0); 91 | require(addressHasCode(_token_address)); 92 | require(_challenge_period >= 500); 93 | 94 | token = Token(_token_address); 95 | 96 | // Check if the contract is indeed a token contract 97 | require(token.totalSupply() > 0); 98 | 99 | challenge_period = _challenge_period; 100 | } 101 | 102 | /* 103 | * External functions 104 | */ 105 | 106 | /// @notice Opens a new channel or tops up an existing one, compatibility with ERC 223. 107 | /// @dev Can only be called from the trusted Token contract. 108 | /// @param _sender_address The address that sends the tokens. 109 | /// @param _deposit The amount of tokens that the sender escrows. 110 | /// @param _data Receiver address in bytes. 111 | function tokenFallback(address _sender_address, uint256 _deposit, bytes _data) external { 112 | // Make sure we trust the token 113 | require(msg.sender == address(token)); 114 | 115 | uint192 deposit = uint192(_deposit); 116 | require(deposit == _deposit); 117 | 118 | uint length = _data.length; 119 | 120 | // createChannel - receiver address (20 bytes) 121 | // topUp - receiver address (20 bytes) + open_block_number (4 bytes) = 24 bytes 122 | require(length == 20 || length == 24); 123 | 124 | address receiver = addressFromData(_data); 125 | 126 | if(length == 20) { 127 | createChannelPrivate(_sender_address, receiver, deposit); 128 | } else { 129 | uint32 open_block_number = blockNumberFromData(_data); 130 | updateInternalBalanceStructs( 131 | _sender_address, 132 | receiver, 133 | open_block_number, 134 | deposit 135 | ); 136 | } 137 | } 138 | 139 | /// @notice Creates a new channel between `msg.sender` and `_receiver_address` and transfers 140 | /// the `_deposit` token deposit to this contract, compatibility with ERC20 tokens. 141 | /// @param _receiver_address The address that receives tokens. 142 | /// @param _deposit The amount of tokens that the sender escrows. 143 | function createChannelERC20(address _receiver_address, uint192 _deposit) external { 144 | createChannelPrivate(msg.sender, _receiver_address, _deposit); 145 | 146 | // transferFrom deposit from sender to contract 147 | // ! needs prior approval from user 148 | require(token.transferFrom(msg.sender, address(this), _deposit)); 149 | } 150 | 151 | /// @notice Increase the channel deposit with `_added_deposit`. 152 | /// @param _receiver_address The address that receives tokens. 153 | /// @param _open_block_number The block number at which a channel between the 154 | /// sender and receiver was created. 155 | /// @param _added_deposit The added token deposit with which the current deposit is increased. 156 | function topUpERC20( 157 | address _receiver_address, 158 | uint32 _open_block_number, 159 | uint192 _added_deposit) 160 | external 161 | { 162 | updateInternalBalanceStructs( 163 | msg.sender, 164 | _receiver_address, 165 | _open_block_number, 166 | _added_deposit 167 | ); 168 | 169 | // transferFrom deposit from msg.sender to contract 170 | // ! needs prior approval from user 171 | // Do transfer after any state change 172 | require(token.transferFrom(msg.sender, address(this), _added_deposit)); 173 | } 174 | 175 | /// @notice Function called by the sender, receiver or a delegate, with all the needed 176 | /// signatures to close the channel and settle immediately. 177 | /// @param _receiver_address The address that receives tokens. 178 | /// @param _open_block_number The block number at which a channel between the 179 | /// sender and receiver was created. 180 | /// @param _balance The amount of tokens owed by the sender to the receiver. 181 | /// @param _balance_msg_sig_r The balance message signed by the sender. 182 | /// @param _balance_msg_sig_s The balance message signed by the sender. 183 | /// @param _balance_msg_sig_v The balance message signed by the sender. 184 | /// @param _closing_sig_r The receiver's signed balance message, containing the sender's address. 185 | /// @param _closing_sig_s The receiver's signed balance message, containing the sender's address. 186 | /// @param _closing_sig_v The receiver's signed balance message, containing the sender's address. 187 | function cooperativeClose( 188 | address _receiver_address, 189 | uint32 _open_block_number, 190 | uint192 _balance, 191 | bytes32 _balance_msg_sig_r, 192 | bytes32 _balance_msg_sig_s, 193 | uint8 _balance_msg_sig_v, 194 | bytes32 _closing_sig_r, 195 | bytes32 _closing_sig_s, 196 | uint8 _closing_sig_v) 197 | external 198 | { 199 | // Derive sender address from signed balance proof 200 | address sender = extractBalanceProofSignature(_receiver_address, _open_block_number, _balance, _balance_msg_sig_r,_balance_msg_sig_s,_balance_msg_sig_v); 201 | 202 | // Derive receiver address from closing signature 203 | address receiver = extractClosingSignature(sender, _open_block_number, _balance, _closing_sig_r,_closing_sig_s,_closing_sig_v); 204 | require(receiver == _receiver_address); 205 | 206 | // Both signatures have been verified and the channel can be settled. 207 | settleChannel(sender, receiver, _open_block_number, _balance); 208 | } 209 | 210 | /// @notice Sender requests the closing of the channel and starts the challenge period. 211 | /// This can only happen once. 212 | /// @param _receiver_address The address that receives tokens. 213 | /// @param _open_block_number The block number at which a channel between 214 | /// the sender and receiver was created. 215 | /// @param _balance The amount of tokens owed by the sender to the receiver. 216 | function uncooperativeClose( 217 | address _receiver_address, 218 | uint32 _open_block_number, 219 | uint192 _balance) 220 | external 221 | { 222 | bytes32 key = getKey(msg.sender, _receiver_address, _open_block_number); 223 | 224 | require(channels[key].open_block_number > 0); 225 | require(closing_requests[key].settle_block_number == 0); 226 | require(_balance <= channels[key].deposit); 227 | 228 | // Mark channel as closed 229 | closing_requests[key].settle_block_number = uint32(block.number) + challenge_period; 230 | require(closing_requests[key].settle_block_number > block.number); 231 | closing_requests[key].closing_balance = _balance; 232 | ChannelCloseRequested(msg.sender, _receiver_address, _open_block_number, _balance); 233 | } 234 | 235 | 236 | /// @notice Function called by the sender after the challenge period has ended, in order to 237 | /// settle and delete the channel, in case the receiver has not closed the channel himself. 238 | /// @param _receiver_address The address that receives tokens. 239 | /// @param _open_block_number The block number at which a channel between 240 | /// the sender and receiver was created. 241 | function settle(address _receiver_address, uint32 _open_block_number) external { 242 | bytes32 key = getKey(msg.sender, _receiver_address, _open_block_number); 243 | 244 | // Make sure an uncooperativeClose has been initiated 245 | require(closing_requests[key].settle_block_number > 0); 246 | 247 | // Make sure the challenge_period has ended 248 | require(block.number > closing_requests[key].settle_block_number); 249 | 250 | settleChannel(msg.sender, _receiver_address, _open_block_number, 251 | closing_requests[key].closing_balance 252 | ); 253 | } 254 | 255 | /// @notice Function for retrieving information about a channel. 256 | /// @param _sender_address The address that sends tokens. 257 | /// @param _receiver_address The address that receives tokens. 258 | /// @param _open_block_number The block number at which a channel between the 259 | /// sender and receiver was created. 260 | /// @return Channel information (unique_identifier, deposit, settle_block_number, closing_balance). 261 | function getChannelInfo( 262 | address _sender_address, 263 | address _receiver_address, 264 | uint32 _open_block_number) 265 | external 266 | constant 267 | returns (bytes32, uint192, uint32, uint192) 268 | { 269 | bytes32 key = getKey(_sender_address, _receiver_address, _open_block_number); 270 | require(channels[key].open_block_number > 0); 271 | 272 | return ( 273 | key, 274 | channels[key].deposit, 275 | closing_requests[key].settle_block_number, 276 | closing_requests[key].closing_balance 277 | ); 278 | } 279 | 280 | /* 281 | * Public functions 282 | */ 283 | 284 | /// @notice Returns the sender address extracted from the balance proof. 285 | /// dev Works with eth_signTypedData https://github.com/ethereum/EIPs/pull/712. 286 | /// @param _receiver_address The address that receives tokens. 287 | /// @param _open_block_number The block number at which a channel between the 288 | /// sender and receiver was created. 289 | /// @param _balance The amount of tokens owed by the sender to the receiver. 290 | /// @param _balance_msg_sig_r The balance message signed by the sender. 291 | /// @param _balance_msg_sig_s The balance message signed by the sender. 292 | /// @param _balance_msg_sig_v The balance message signed by the sender. 293 | /// @return Address of the balance proof signer. 294 | function extractBalanceProofSignature( 295 | address _receiver_address, 296 | uint32 _open_block_number, 297 | uint192 _balance, 298 | bytes32 _balance_msg_sig_r, 299 | bytes32 _balance_msg_sig_s, 300 | uint8 _balance_msg_sig_v) 301 | public 302 | constant 303 | returns (address) 304 | { 305 | // The variable names from below will be shown to the sender when signing 306 | // the balance proof, so they have to be kept in sync with the Dapp client. 307 | // The hashed strings should be kept in sync with this function's parameters 308 | // (variable names and types). 309 | // ! Note that EIP712 might change how hashing is done, triggering a 310 | // new contract deployment with updated code. 311 | bytes32 message_hash = getBalanceHash( 312 | _receiver_address, 313 | _open_block_number, 314 | _balance); 315 | 316 | 317 | // Derive address from signature 318 | address signer = ECVerify.ecverify(message_hash, _balance_msg_sig_r, _balance_msg_sig_s, _balance_msg_sig_v); 319 | return signer; 320 | } 321 | 322 | 323 | function getClosingHash( 324 | address _sender_address, 325 | uint32 _open_block_number, 326 | uint192 _balance) 327 | constant returns (bytes32 message_hash) 328 | { 329 | message_hash = keccak256( 330 | keccak256( 331 | 'string message_id', 332 | 'address sender', 333 | 'uint32 block_created', 334 | 'uint192 balance', 335 | 'address contract' 336 | ), 337 | keccak256( 338 | 'Receiver closing signature', 339 | _sender_address, 340 | _open_block_number, 341 | _balance, 342 | address(this) 343 | ) 344 | ); 345 | return message_hash; 346 | } 347 | 348 | function getBalanceHash( 349 | address _receiver_address, 350 | uint32 _open_block_number, 351 | uint192 _balance) 352 | constant returns (bytes32 message_hash) 353 | { 354 | message_hash = keccak256( 355 | keccak256( 356 | 'string message_id', 357 | 'address receiver', 358 | 'uint32 block_created', 359 | 'uint192 balance', 360 | 'address contract' 361 | ), 362 | keccak256( 363 | 'Sender balance proof signature', 364 | _receiver_address, 365 | _open_block_number, 366 | _balance, 367 | address(this) 368 | ) 369 | ); 370 | return message_hash; 371 | } 372 | 373 | /// @dev Returns the receiver address extracted from the closing signature. 374 | /// Works with eth_signTypedData https://github.com/ethereum/EIPs/pull/712. 375 | /// @param _sender_address The address that sends tokens. 376 | /// @param _open_block_number The block number at which a channel between the 377 | /// sender and receiver was created. 378 | /// @param _balance The amount of tokens owed by the sender to the receiver. 379 | /// @param _closing_sig_r The receiver's signed balance message, containing the sender's address. 380 | /// @param _closing_sig_s The receiver's signed balance message, containing the sender's address. 381 | /// @param _closing_sig_v The receiver's signed balance message, containing the sender's address. 382 | /// @return Address of the closing signature signer. 383 | function extractClosingSignature( 384 | address _sender_address, 385 | uint32 _open_block_number, 386 | uint192 _balance, 387 | bytes32 _closing_sig_r, 388 | bytes32 _closing_sig_s, 389 | uint8 _closing_sig_v) 390 | public 391 | constant 392 | returns (address) 393 | { 394 | // The variable names from below will be shown to the sender when signing 395 | // the balance proof, so they have to be kept in sync with the Dapp client. 396 | // The hashed strings should be kept in sync with this function's parameters 397 | // (variable names and types). 398 | // ! Note that EIP712 might change how hashing is done, triggering a 399 | // new contract deployment with updated code. 400 | bytes32 message_hash = getClosingHash( 401 | _sender_address, 402 | _open_block_number, 403 | _balance); 404 | 405 | 406 | // Derive address from signature 407 | address signer = ECVerify.ecverify(message_hash, _closing_sig_r, _closing_sig_s, _closing_sig_v); 408 | return signer; 409 | } 410 | 411 | /// @notice Returns the unique channel identifier used in the contract. 412 | /// @param _sender_address The address that sends tokens. 413 | /// @param _receiver_address The address that receives tokens. 414 | /// @param _open_block_number The block number at which a channel between the 415 | /// sender and receiver was created. 416 | /// @return Unique channel identifier. 417 | function getKey( 418 | address _sender_address, 419 | address _receiver_address, 420 | uint32 _open_block_number) 421 | public 422 | constant 423 | returns (bytes32 data) 424 | { 425 | return keccak256(_sender_address, _receiver_address, _open_block_number); 426 | } 427 | 428 | /* 429 | * Private functions 430 | */ 431 | 432 | /// @dev Creates a new channel between a sender and a receiver. 433 | /// @param _sender_address The address that sends tokens. 434 | /// @param _receiver_address The address that receives tokens. 435 | /// @param _deposit The amount of tokens that the sender escrows. 436 | function createChannelPrivate(address _sender_address, address _receiver_address, uint192 _deposit) private { 437 | require(_deposit <= channel_deposit_bugbounty_limit); 438 | 439 | uint32 open_block_number = uint32(block.number); 440 | 441 | // Create unique identifier from sender, receiver and current block number 442 | bytes32 key = getKey(_sender_address, _receiver_address, open_block_number); 443 | 444 | require(channels[key].deposit == 0); 445 | require(channels[key].open_block_number == 0); 446 | require(closing_requests[key].settle_block_number == 0); 447 | 448 | // Store channel information 449 | channels[key] = Channel({deposit: _deposit, open_block_number: open_block_number}); 450 | ChannelCreated(_sender_address, _receiver_address, _deposit); 451 | } 452 | 453 | /// @dev Updates internal balance Structures when the sender adds tokens to the channel. 454 | /// @param _sender_address The address that sends tokens. 455 | /// @param _receiver_address The address that receives tokens. 456 | /// @param _open_block_number The block number at which a channel between the 457 | /// sender and receiver was created. 458 | /// @param _added_deposit The added token deposit with which the current deposit is increased. 459 | function updateInternalBalanceStructs( 460 | address _sender_address, 461 | address _receiver_address, 462 | uint32 _open_block_number, 463 | uint192 _added_deposit) 464 | private 465 | { 466 | require(_added_deposit > 0); 467 | require(_open_block_number > 0); 468 | 469 | bytes32 key = getKey(_sender_address, _receiver_address, _open_block_number); 470 | 471 | require(channels[key].deposit > 0); 472 | require(closing_requests[key].settle_block_number == 0); 473 | require(channels[key].deposit + _added_deposit <= channel_deposit_bugbounty_limit); 474 | 475 | channels[key].deposit += _added_deposit; 476 | assert(channels[key].deposit > _added_deposit); 477 | ChannelToppedUp(_sender_address, _receiver_address, _open_block_number, _added_deposit); 478 | } 479 | 480 | /// @dev Deletes the channel and settles by transfering the balance to the receiver 481 | /// and the rest of the deposit back to the sender. 482 | /// @param _sender_address The address that sends tokens. 483 | /// @param _receiver_address The address that receives tokens. 484 | /// @param _open_block_number The block number at which a channel between the 485 | /// sender and receiver was created. 486 | /// @param _balance The amount of tokens owed by the sender to the receiver. 487 | function settleChannel( 488 | address _sender_address, 489 | address _receiver_address, 490 | uint32 _open_block_number, 491 | uint192 _balance) 492 | private 493 | { 494 | bytes32 key = getKey(_sender_address, _receiver_address, _open_block_number); 495 | Channel memory channel = channels[key]; 496 | 497 | require(channel.open_block_number > 0); 498 | require(_balance <= channel.deposit); 499 | 500 | // Remove closed channel structures 501 | // channel.open_block_number will become 0 502 | // Change state before transfer call 503 | delete channels[key]; 504 | delete closing_requests[key]; 505 | 506 | // Send _balance to the receiver, as it is always <= deposit 507 | require(token.transfer(_receiver_address, _balance)); 508 | 509 | // Send deposit - balance back to sender 510 | require(token.transfer(_sender_address, channel.deposit - _balance)); 511 | 512 | ChannelSettled(_sender_address, _receiver_address, _open_block_number, _balance); 513 | } 514 | 515 | /* 516 | * Internal functions 517 | */ 518 | 519 | /// @dev Internal function for getting an address from tokenFallback data bytes. 520 | /// @param b Bytes received. 521 | /// @return Address resulted. 522 | function addressFromData (bytes b) internal constant returns (address) { 523 | bytes20 addr; 524 | assembly { 525 | // Read address bytes 526 | // Offset of 32 bytes, representing b.length 527 | addr := mload(add(b, 0x20)) 528 | } 529 | return address(addr); 530 | } 531 | 532 | /// @dev Internal function for getting the block number from tokenFallback data bytes. 533 | /// @param b Bytes received. 534 | /// @return Block number. 535 | function blockNumberFromData(bytes b) internal constant returns (uint32) { 536 | bytes4 block_number; 537 | assembly { 538 | // Read block number bytes 539 | // Offset of 32 bytes (b.length) + 20 bytes (address) 540 | block_number := mload(add(b, 0x34)) 541 | } 542 | return uint32(block_number); 543 | } 544 | 545 | /// @dev Check if a contract exists. 546 | /// @param _contract The address of the contract to check for. 547 | /// @return True if a contract exists, false otherwise 548 | function addressHasCode(address _contract) internal constant returns (bool) { 549 | uint size; 550 | assembly { 551 | size := extcodesize(_contract) 552 | } 553 | 554 | return size > 0; 555 | } 556 | } 557 | -------------------------------------------------------------------------------- /contracts/Token.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.15; 2 | 3 | /// @title Base Token contract - Functions to be implemented by token contracts. 4 | contract Token { 5 | /* 6 | * Implements ERC 20 standard. 7 | * https://github.com/ethereum/EIPs/blob/f90864a3d2b2b45c4decf95efd26b3f0c276051a/EIPS/eip-20-token-standard.md 8 | * https://github.com/ethereum/EIPs/issues/20 9 | * 10 | * Added support for the ERC 223 "tokenFallback" method in a "transfer" function with a payload. 11 | * https://github.com/ethereum/EIPs/issues/223 12 | */ 13 | 14 | /* 15 | * This is a slight change to the ERC20 base standard. 16 | * function totalSupply() constant returns (uint256 supply); 17 | * is replaced with: 18 | * uint256 public totalSupply; 19 | * This automatically creates a getter function for the totalSupply. 20 | * This is moved to the base contract since public getter functions are not 21 | * currently recognised as an implementation of the matching abstract 22 | * function by the compiler. 23 | */ 24 | uint256 public totalSupply; 25 | 26 | /* 27 | * NOTE: 28 | * The following variables were optional. Now, they are included in ERC 223 interface. 29 | * They allow one to customise the token contract & in no way influences the core functionality. 30 | */ 31 | string public name; //fancy name: eg Simon Bucks 32 | uint8 public decimals; //How many decimals to show. ie. There could 1000 base units with 3 decimals. Meaning 0.980 SBX = 980 base units. It's like comparing 1 wei to 1 ether. 33 | string public symbol; //An identifier: eg SBX 34 | 35 | 36 | /// @param _owner The address from which the balance will be retrieved. 37 | /// @return The balance. 38 | function balanceOf(address _owner) public constant returns (uint256 balance); 39 | 40 | /// @notice send `_value` token to `_to` from `msg.sender`. 41 | /// @param _to The address of the recipient. 42 | /// @param _value The amount of token to be transferred. 43 | /// @param _data Data to be sent to `tokenFallback. 44 | /// @return Returns success of function call. 45 | function transfer(address _to, uint256 _value, bytes _data) public returns (bool success); 46 | 47 | /// @notice send `_value` token to `_to` from `msg.sender`. 48 | /// @param _to The address of the recipient. 49 | /// @param _value The amount of token to be transferred. 50 | /// @return Whether the transfer was successful or not. 51 | function transfer(address _to, uint256 _value) public returns (bool success); 52 | 53 | /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`. 54 | /// @param _from The address of the sender. 55 | /// @param _to The address of the recipient. 56 | /// @param _value The amount of token to be transferred. 57 | /// @return Whether the transfer was successful or not. 58 | function transferFrom(address _from, address _to, uint256 _value) public returns (bool success); 59 | 60 | /// @notice `msg.sender` approves `_spender` to spend `_value` tokens. 61 | /// @param _spender The address of the account able to transfer the tokens. 62 | /// @param _value The amount of tokens to be approved for transfer. 63 | /// @return Whether the approval was successful or not. 64 | function approve(address _spender, uint256 _value) public returns (bool success); 65 | 66 | /// @param _owner The address of the account owning tokens. 67 | /// @param _spender The address of the account able to transfer the tokens. 68 | /// @return Amount of remaining tokens allowed to spent. 69 | function allowance(address _owner, address _spender) public constant returns (uint256 remaining); 70 | 71 | /* 72 | * Events 73 | */ 74 | event Transfer(address indexed _from, address indexed _to, uint256 _value); 75 | event Approval(address indexed _owner, address indexed _spender, uint256 _value); 76 | 77 | // There is no ERC223 compatible Transfer event, with `_data` included. 78 | } 79 | -------------------------------------------------------------------------------- /contracts/lib/ECVerify.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.15; 2 | 3 | library ECVerify { 4 | 5 | function ecverify(bytes32 hash, bytes32 r, bytes32 s, uint8 v) internal constant returns (address signature_address) { 6 | 7 | // Version of signature should be 27 or 28, but 0 and 1 are also possible 8 | if (v < 27) { 9 | v += 27; 10 | } 11 | 12 | require(v == 27 || v == 28); 13 | signature_address = ecrecover(hash, v, r, s); 14 | 15 | // ecrecover returns zero on error 16 | require(signature_address != 0x0); 17 | 18 | return signature_address; 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /contracts/test/CustomToken.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.15; 2 | 3 | /* 4 | This Token Contract implements the standard token functionality (https://github.com/ethereum/EIPs/issues/20), the ERC223 functionality (https://github.com/ethereum/EIPs/issues/223) as well as the following OPTIONAL extras intended for use by humans. 5 | 6 | In other words. This is intended for deployment in something like a Token Factory or Mist wallet, and then used by humans. 7 | Imagine coins, currencies, shares, voting weight, etc. 8 | Machine-based, rapid creation of many tokens would not necessarily need these extra features or will be minted in other manners. 9 | 10 | 1) Initial Finite Supply (upon creation one specifies how much is minted). 11 | 2) In the absence of a token registry: Optional Decimal, Symbol & Name. 12 | 13 | .*/ 14 | 15 | import "./StandardToken.sol"; 16 | 17 | /// @title CustomToken 18 | contract CustomToken is StandardToken { 19 | 20 | /* 21 | * Token metadata 22 | */ 23 | string public version = 'H0.1'; //human 0.1 standard. Just an arbitrary versioning scheme. 24 | string public name; 25 | string public symbol; 26 | uint8 public decimals; 27 | uint256 public multiplier; 28 | 29 | address public owner_address; 30 | 31 | /* 32 | * Events 33 | */ 34 | event Minted(address indexed _to, uint256 indexed _num); 35 | 36 | /* 37 | * Public functions 38 | */ 39 | /// @dev Contract constructor function. 40 | /// @param initial_supply Initial supply of tokens. 41 | /// @param token_name Token name for display. 42 | /// @param token_symbol Token symbol. 43 | /// @param decimal_units Number of token decimals. 44 | function CustomToken ( 45 | uint256 initial_supply, 46 | string token_name, 47 | string token_symbol, 48 | uint8 decimal_units) 49 | public 50 | { 51 | // Set the name for display purposes 52 | name = token_name; 53 | 54 | // Amount of decimals for display purposes 55 | decimals = decimal_units; 56 | multiplier = 10**(uint256(decimal_units)); 57 | 58 | // Set the symbol for display purposes 59 | symbol = token_symbol; 60 | 61 | // Initial supply is assigned to the owner 62 | owner_address = msg.sender; 63 | balances[owner_address] = initial_supply; 64 | totalSupply = initial_supply; 65 | } 66 | 67 | /// @notice Allows tokens to be minted and assigned to `msg.sender` 68 | /// For `msg.value >= 100 finney`, the sender receives 50 tokens 69 | function mint() public payable { 70 | require(msg.value >= 100 finney); 71 | 72 | // Assign 50 tokens to msg.sender 73 | uint256 num = 50 * multiplier; 74 | balances[msg.sender] += num; 75 | totalSupply += num; 76 | 77 | Minted(msg.sender, num); 78 | 79 | assert(balances[msg.sender] >= num); 80 | assert(totalSupply >= num); 81 | } 82 | 83 | /// @notice Transfers the collected ETH to the contract owner. 84 | function transferFunds() public { 85 | require(msg.sender == owner_address); 86 | require(this.balance > 0); 87 | 88 | owner_address.transfer(this.balance); 89 | assert(this.balance == 0); 90 | } 91 | } 92 | -------------------------------------------------------------------------------- /contracts/test/ERC223ReceivingContract.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.15; 2 | 3 | /* 4 | * Contract that is working with ERC223 tokens 5 | * https://github.com/ethereum/EIPs/issues/223 6 | */ 7 | 8 | /// @title ERC223ReceivingContract - contract implementation for compatibility with ERC223 tokens. 9 | contract ERC223ReceivingContract { 10 | 11 | /// @dev Function that is called when a user or another contract wants to transfer funds. 12 | /// @param _from Transaction initiator, analogue of msg.sender 13 | /// @param _value Number of tokens to transfer. 14 | /// @param _data Data containig a function signature and/or parameters 15 | function tokenFallback(address _from, uint256 _value, bytes _data) public; 16 | } 17 | -------------------------------------------------------------------------------- /contracts/test/StandardToken.sol: -------------------------------------------------------------------------------- 1 | pragma solidity ^0.4.15; 2 | 3 | import "../Token.sol"; 4 | import "./ERC223ReceivingContract.sol"; 5 | 6 | /// @title Standard token contract - Standard token implementation. 7 | contract StandardToken is Token { 8 | 9 | /* 10 | * Data structures 11 | */ 12 | mapping (address => uint256) balances; 13 | mapping (address => mapping (address => uint256)) allowed; 14 | 15 | /* 16 | * Public functions 17 | */ 18 | /// @notice Send `_value` tokens to `_to` from `msg.sender`. 19 | /// @dev Transfers sender's tokens to a given address. Returns success. 20 | /// @param _to Address of token receiver. 21 | /// @param _value Number of tokens to transfer. 22 | /// @return Returns success of function call. 23 | function transfer(address _to, uint256 _value) public returns (bool) { 24 | require(_to != 0x0); 25 | require(_to != address(this)); 26 | require(balances[msg.sender] >= _value); 27 | require(balances[_to] + _value >= balances[_to]); 28 | 29 | balances[msg.sender] -= _value; 30 | balances[_to] += _value; 31 | 32 | Transfer(msg.sender, _to, _value); 33 | 34 | return true; 35 | } 36 | 37 | /// @notice Send `_value` tokens to `_to` from `msg.sender` and trigger 38 | /// tokenFallback if sender is a contract. 39 | /// @dev Function that is called when a user or another contract wants to transfer funds. 40 | /// @param _to Address of token receiver. 41 | /// @param _value Number of tokens to transfer. 42 | /// @param _data Data to be sent to tokenFallback 43 | /// @return Returns success of function call. 44 | function transfer( 45 | address _to, 46 | uint256 _value, 47 | bytes _data) 48 | public 49 | returns (bool) 50 | { 51 | require(transfer(_to, _value)); 52 | 53 | uint codeLength; 54 | 55 | assembly { 56 | // Retrieve the size of the code on target address, this needs assembly. 57 | codeLength := extcodesize(_to) 58 | } 59 | 60 | if (codeLength > 0) { 61 | ERC223ReceivingContract receiver = ERC223ReceivingContract(_to); 62 | receiver.tokenFallback(msg.sender, _value, _data); 63 | } 64 | 65 | return true; 66 | } 67 | 68 | /// @notice Transfer `_value` tokens from `_from` to `_to` if `msg.sender` is allowed. 69 | /// @dev Allows for an approved third party to transfer tokens from one 70 | /// address to another. Returns success. 71 | /// @param _from Address from where tokens are withdrawn. 72 | /// @param _to Address to where tokens are sent. 73 | /// @param _value Number of tokens to transfer. 74 | /// @return Returns success of function call. 75 | function transferFrom(address _from, address _to, uint256 _value) 76 | public 77 | returns (bool) 78 | { 79 | require(_from != 0x0); 80 | require(_to != 0x0); 81 | require(_to != address(this)); 82 | require(balances[_from] >= _value); 83 | require(allowed[_from][msg.sender] >= _value); 84 | require(balances[_to] + _value >= balances[_to]); 85 | 86 | balances[_to] += _value; 87 | balances[_from] -= _value; 88 | allowed[_from][msg.sender] -= _value; 89 | 90 | Transfer(_from, _to, _value); 91 | 92 | return true; 93 | } 94 | 95 | /// @notice Allows `_spender` to transfer `_value` tokens from `msg.sender` to any address. 96 | /// @dev Sets approved amount of tokens for spender. Returns success. 97 | /// @param _spender Address of allowed account. 98 | /// @param _value Number of approved tokens. 99 | /// @return Returns success of function call. 100 | function approve(address _spender, uint256 _value) public returns (bool) { 101 | require(_spender != 0x0); 102 | 103 | // To change the approve amount you first have to reduce the addresses` 104 | // allowance to zero by calling `approve(_spender, 0)` if it is not 105 | // already 0 to mitigate the race condition described here: 106 | // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 107 | require(_value == 0 || allowed[msg.sender][_spender] == 0); 108 | 109 | allowed[msg.sender][_spender] = _value; 110 | Approval(msg.sender, _spender, _value); 111 | return true; 112 | } 113 | 114 | /* 115 | * Read functions 116 | */ 117 | /// @dev Returns number of allowed tokens that a spender can transfer on 118 | /// behalf of a token owner. 119 | /// @param _owner Address of token owner. 120 | /// @param _spender Address of token spender. 121 | /// @return Returns remaining allowance for spender. 122 | function allowance(address _owner, address _spender) 123 | constant 124 | public 125 | returns (uint256) 126 | { 127 | return allowed[_owner][_spender]; 128 | } 129 | 130 | /// @dev Returns number of tokens owned by the given address. 131 | /// @param _owner Address of token owner. 132 | /// @return Returns balance of owner. 133 | function balanceOf(address _owner) constant public returns (uint256) { 134 | return balances[_owner]; 135 | } 136 | } 137 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/RightMesh/microraiden-java/0fba1bf91e0d0b5b61d02997591df1c15a0f1ffc/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | zipStoreBase=GRADLE_USER_HOME 4 | zipStorePath=wrapper/dists 5 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.3-bin.zip 6 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn () { 37 | echo "$*" 38 | } 39 | 40 | die () { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save () { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /rm-ethereum.conf: -------------------------------------------------------------------------------- 1 | { 2 | "gasPrice":"1000000000", 3 | "debugInfo":"false", 4 | "rpcAddress":"http://localhost:8545", 5 | "channelAddr":"0x5832edf9Da129Aa13fdA0fBff93379d3ED8a4a93", 6 | "tokenAddr":"0x0fC373426c87F555715E6fE673B07Fe9E7f0E6e7", 7 | "tokenABI":"[{\"constant\":true,\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_spender\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"mint\",\"outputs\":[],\"payable\":true,\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"multiplier\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_from\",\"type\":\"address\"},{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"decimals\",\"outputs\":[{\"name\":\"\",\"type\":\"uint8\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"transferFunds\",\"outputs\":[],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"version\",\"outputs\":[{\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_owner\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"owner_address\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"},{\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"transfer\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_owner\",\"type\":\"address\"},{\"name\":\"_spender\",\"type\":\"address\"}],\"name\":\"allowance\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"type\":\"function\"},{\"inputs\":[{\"name\":\"initial_supply\",\"type\":\"uint256\"},{\"name\":\"token_name\",\"type\":\"string\"},{\"name\":\"token_symbol\",\"type\":\"string\"},{\"name\":\"decimal_units\",\"type\":\"uint8\"}],\"payable\":false,\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"_to\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_num\",\"type\":\"uint256\"}],\"name\":\"Minted\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"_from\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_to\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"_owner\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_spender\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"}]", 8 | "channelABI":"[{\"constant\":true,\"inputs\":[],\"name\":\"challenge_period\",\"outputs\":[{\"name\":\"\",\"type\":\"uint32\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_sender_address\",\"type\":\"address\"},{\"name\":\"_receiver_address\",\"type\":\"address\"},{\"name\":\"_open_block_number\",\"type\":\"uint32\"}],\"name\":\"getChannelInfo\",\"outputs\":[{\"name\":\"\",\"type\":\"bytes32\"},{\"name\":\"\",\"type\":\"uint192\"},{\"name\":\"\",\"type\":\"uint32\"},{\"name\":\"\",\"type\":\"uint192\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_receiver_address\",\"type\":\"address\"},{\"name\":\"_open_block_number\",\"type\":\"uint32\"},{\"name\":\"_balance\",\"type\":\"uint192\"}],\"name\":\"uncooperativeClose\",\"outputs\":[],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"version\",\"outputs\":[{\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_receiver_address\",\"type\":\"address\"},{\"name\":\"_deposit\",\"type\":\"uint192\"}],\"name\":\"createChannelERC20\",\"outputs\":[],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_receiver_address\",\"type\":\"address\"},{\"name\":\"_open_block_number\",\"type\":\"uint32\"}],\"name\":\"settle\",\"outputs\":[],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_sender_address\",\"type\":\"address\"},{\"name\":\"_open_block_number\",\"type\":\"uint32\"},{\"name\":\"_balance\",\"type\":\"uint192\"}],\"name\":\"getClosingHash\",\"outputs\":[{\"name\":\"message_hash\",\"type\":\"bytes32\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"channel_deposit_bugbounty_limit\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_receiver_address\",\"type\":\"address\"},{\"name\":\"_open_block_number\",\"type\":\"uint32\"},{\"name\":\"_balance\",\"type\":\"uint192\"},{\"name\":\"_balance_msg_sig_r\",\"type\":\"bytes32\"},{\"name\":\"_balance_msg_sig_s\",\"type\":\"bytes32\"},{\"name\":\"_balance_msg_sig_v\",\"type\":\"uint8\"}],\"name\":\"extractBalanceProofSignature\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"closing_requests\",\"outputs\":[{\"name\":\"closing_balance\",\"type\":\"uint192\"},{\"name\":\"settle_block_number\",\"type\":\"uint32\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"channels\",\"outputs\":[{\"name\":\"deposit\",\"type\":\"uint192\"},{\"name\":\"open_block_number\",\"type\":\"uint32\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_sender_address\",\"type\":\"address\"},{\"name\":\"_receiver_address\",\"type\":\"address\"},{\"name\":\"_open_block_number\",\"type\":\"uint32\"}],\"name\":\"getKey\",\"outputs\":[{\"name\":\"data\",\"type\":\"bytes32\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_sender_address\",\"type\":\"address\"},{\"name\":\"_open_block_number\",\"type\":\"uint32\"},{\"name\":\"_balance\",\"type\":\"uint192\"},{\"name\":\"_closing_sig_r\",\"type\":\"bytes32\"},{\"name\":\"_closing_sig_s\",\"type\":\"bytes32\"},{\"name\":\"_closing_sig_v\",\"type\":\"uint8\"}],\"name\":\"extractClosingSignature\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_sender_address\",\"type\":\"address\"},{\"name\":\"_deposit\",\"type\":\"uint256\"},{\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"tokenFallback\",\"outputs\":[],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_receiver_address\",\"type\":\"address\"},{\"name\":\"_open_block_number\",\"type\":\"uint32\"},{\"name\":\"_added_deposit\",\"type\":\"uint192\"}],\"name\":\"topUpERC20\",\"outputs\":[],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_receiver_address\",\"type\":\"address\"},{\"name\":\"_open_block_number\",\"type\":\"uint32\"},{\"name\":\"_balance\",\"type\":\"uint192\"}],\"name\":\"getBalanceHash\",\"outputs\":[{\"name\":\"message_hash\",\"type\":\"bytes32\"}],\"payable\":false,\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_receiver_address\",\"type\":\"address\"},{\"name\":\"_open_block_number\",\"type\":\"uint32\"},{\"name\":\"_balance\",\"type\":\"uint192\"},{\"name\":\"_balance_msg_sig_r\",\"type\":\"bytes32\"},{\"name\":\"_balance_msg_sig_s\",\"type\":\"bytes32\"},{\"name\":\"_balance_msg_sig_v\",\"type\":\"uint8\"},{\"name\":\"_closing_sig_r\",\"type\":\"bytes32\"},{\"name\":\"_closing_sig_s\",\"type\":\"bytes32\"},{\"name\":\"_closing_sig_v\",\"type\":\"uint8\"}],\"name\":\"cooperativeClose\",\"outputs\":[],\"payable\":false,\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"token\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"type\":\"function\"},{\"inputs\":[{\"name\":\"_token_address\",\"type\":\"address\"},{\"name\":\"_challenge_period\",\"type\":\"uint32\"}],\"payable\":false,\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"_sender\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_receiver\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"_deposit\",\"type\":\"uint192\"}],\"name\":\"ChannelCreated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"_sender\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_receiver\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_open_block_number\",\"type\":\"uint32\"},{\"indexed\":false,\"name\":\"_added_deposit\",\"type\":\"uint192\"}],\"name\":\"ChannelToppedUp\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"_sender\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_receiver\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_open_block_number\",\"type\":\"uint32\"},{\"indexed\":false,\"name\":\"_balance\",\"type\":\"uint192\"}],\"name\":\"ChannelCloseRequested\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"_sender\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_receiver\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_open_block_number\",\"type\":\"uint32\"},{\"indexed\":false,\"name\":\"_balance\",\"type\":\"uint192\"}],\"name\":\"ChannelSettled\",\"type\":\"event\"}]", 9 | "appendingZerosForETH":"1000000000000000000", 10 | "appendingZerosForTKN":"1000000000000000000", 11 | "maxDepositBits":"192" 12 | } 13 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | /* 2 | * This settings file was generated by the Gradle 'init' task. 3 | * 4 | * The settings file is used to specify which projects to include in your build. 5 | * In a single project build this file can be empty or even removed. 6 | * 7 | * Detailed information about configuring a multi-project build in Gradle can be found 8 | * in the user guide at https://docs.gradle.org/4.3/userguide/multi_project_builds.html 9 | */ 10 | 11 | /* 12 | // To declare projects as part of a multi-project build use the 'include' method 13 | include 'shared' 14 | include 'api' 15 | include 'services:webservice' 16 | */ 17 | 18 | rootProject.name = 'microraiden-java' 19 | -------------------------------------------------------------------------------- /src/main/java/Http.java: -------------------------------------------------------------------------------- 1 | import java.io.IOException; 2 | import java.io.UnsupportedEncodingException; 3 | 4 | import org.apache.http.client.ClientProtocolException; 5 | import org.apache.http.client.methods.CloseableHttpResponse; 6 | import org.apache.http.client.methods.HttpPost; 7 | import org.apache.http.entity.StringEntity; 8 | import org.apache.http.impl.client.BasicResponseHandler; 9 | import org.apache.http.impl.client.CloseableHttpClient; 10 | import org.apache.http.impl.client.HttpClientBuilder; 11 | import org.json.simple.JSONObject; 12 | import org.json.simple.parser.JSONParser; 13 | import org.json.simple.parser.ParseException; 14 | 15 | public class Http { 16 | 17 | private String rpcAddress; 18 | private boolean debugInfo; 19 | /** 20 | * 21 | * @param _rpcAddress the rpc URL 22 | * @param _debug debug info switch 23 | */ 24 | public Http(String _rpcAddress, boolean _debug) { 25 | rpcAddress=_rpcAddress; 26 | debugInfo=_debug; 27 | 28 | } 29 | 30 | /** 31 | * This function is to send RPC request to the running peer. 32 | * @param requestString the HTTP request string 33 | * @return the result of the HTTP request 34 | * @throws IOException 35 | */ 36 | public Object getHttpResponse(String requestString) throws IOException{ 37 | JSONParser parser = new JSONParser(); 38 | JSONObject jobj=new JSONObject(); 39 | Object executionResult=null; 40 | String temp=""; 41 | try { 42 | CloseableHttpClient httpClient = HttpClientBuilder.create().build(); 43 | 44 | HttpPost request = new HttpPost(rpcAddress); 45 | request.addHeader("content-type", "application/json"); 46 | request.setEntity(new StringEntity(requestString)); 47 | 48 | CloseableHttpResponse response = httpClient.execute(request); 49 | response.close(); 50 | httpClient.close(); 51 | 52 | temp=new BasicResponseHandler().handleResponse(response); 53 | jobj=(JSONObject)parser.parse(temp); 54 | if(debugInfo) { 55 | System.out.println("result = "+jobj.toJSONString()); 56 | } 57 | for (Object key : jobj.keySet()) { 58 | if (((String)key).equalsIgnoreCase("result")) { 59 | executionResult=jobj.get(key); 60 | } 61 | } 62 | }catch (UnsupportedEncodingException e) { 63 | System.out.println("UnsupportedEncodingException: " + e); 64 | }catch (ClientProtocolException e) { 65 | System.out.println("ClientProtocolException: "+ e); 66 | }catch (IOException e) { 67 | System.out.println("IOException: " + e); 68 | }catch(ParseException e) { 69 | System.out.println("ParseException: " + e); 70 | }catch (NumberFormatException e){ 71 | System.out.println("NumberFormatException=" + e); 72 | } 73 | if("".equals(executionResult)) { 74 | throw new IOException(temp); 75 | } 76 | return executionResult; 77 | } 78 | } 79 | -------------------------------------------------------------------------------- /src/main/java/MicroRaiden.java: -------------------------------------------------------------------------------- 1 | import java.lang.reflect.*; 2 | import java.math.BigInteger; 3 | import java.util.Arrays; 4 | import java.io.File; 5 | import java.io.FileOutputStream; 6 | import java.io.FileReader; 7 | import java.io.FileInputStream; 8 | import java.io.FileNotFoundException; 9 | import java.io.OutputStream; 10 | import java.io.UnsupportedEncodingException; 11 | import java.io.InputStream; 12 | import java.io.IOException; 13 | 14 | import org.apache.commons.codec.DecoderException; 15 | import org.apache.commons.codec.binary.Hex; 16 | import org.apache.commons.io.IOUtils; 17 | import org.apache.http.client.ClientProtocolException; 18 | import org.apache.http.client.methods.CloseableHttpResponse; 19 | import org.apache.http.client.methods.HttpPost; 20 | import org.apache.http.entity.StringEntity; 21 | import org.apache.http.impl.client.BasicResponseHandler; 22 | import org.apache.http.impl.client.CloseableHttpClient; 23 | import org.apache.http.impl.client.HttpClientBuilder; 24 | import org.ethereum.core.CallTransaction; 25 | import org.ethereum.core.Transaction; 26 | import org.ethereum.core.CallTransaction.Contract; 27 | import org.ethereum.crypto.ECKey; 28 | import org.ethereum.util.ByteUtil; 29 | import org.json.simple.JSONObject; 30 | import org.json.simple.parser.JSONParser; 31 | import org.json.simple.parser.ParseException; 32 | import org.kocakosm.pitaya.security.Digest; 33 | import org.kocakosm.pitaya.security.Digests; 34 | 35 | /* 36 | * CLI for the MicroRaiden client 37 | */ 38 | public class MicroRaiden { 39 | private static final int LENGTH_OF_ID_IN_BYTES=20; 40 | private static final int INTERVAL_CHECK_TRANS_DONE=100; 41 | 42 | private static String rpcAddress=null; 43 | private static String channelAddr=null; 44 | private static String tokenAddr=null; 45 | private static String channelABI=null; 46 | private static String tokenABI=null; 47 | 48 | private static CallTransaction.Contract channelContract = null; 49 | private static CallTransaction.Contract tokenContract = null; 50 | private static String appendingZerosForETH=null; 51 | private static String appendingZerosForTKN=null; 52 | private static BigInteger MAX_DEPOSIT=null; 53 | private static BigInteger gasPrice=null; 54 | private static boolean debugInfo=false; 55 | 56 | 57 | private static Http httpAgent=null; 58 | 59 | public MicroRaiden() { 60 | //should probably create an eth account with priv / pub keys 61 | //for doing the signing in the constructor 62 | 63 | //another option is we load the account based on what is 64 | //already saved in the folder 65 | 66 | //we need to think about what we should do if the sender / recv 67 | //are located in the same folder, or different folders and how 68 | //to store the files 69 | } 70 | 71 | /** 72 | * Create a new Ethereum account to be used for testing microraiden 73 | * channels. Stores the account in the same folder where the 74 | * program is run. Note - there is no encryption on this private key 75 | * so it should be used for anything real!! 76 | * @param accountFile - the name of the output file for the account 77 | */ 78 | public void createAccount(String accountFile) { 79 | ECKey keyPair = new ECKey(); 80 | String address = new String(Hex.encodeHex(keyPair.getAddress())); 81 | System.out.println("Generated new account: 0x" + address); 82 | byte[] priv = keyPair.getPrivKeyBytes(); 83 | 84 | try { 85 | OutputStream os = new FileOutputStream(accountFile + ".pkey"); 86 | JSONObject obj=new JSONObject(); 87 | obj.put("privkey", new String(Hex.encodeHex(priv))); 88 | obj.put("address", address); 89 | os.write(obj.toJSONString().getBytes()); 90 | os.close(); 91 | } catch (IOException e) { 92 | System.out.println("Couldn't write to file: " + accountFile + " " + e.toString()); 93 | } 94 | } 95 | 96 | /** 97 | * This function is another way to create the account file for testing purpose. 98 | * After the user creates an account with, for example, MetaMask, the privateKey 99 | * can be found and used here to create the account file to perform tests on test nets. 100 | * @param accountFile the name of the account to be created. 101 | * @param privateKeyHex the privateKey given in 64 Hex digits. "0x" prefix is optional. 102 | */ 103 | public void createAccountByPrivateKey(String accountFile, String privateKeyHex) { 104 | privateKeyHex=privateKeyHex.startsWith("0x")?privateKeyHex.substring(2):privateKeyHex; 105 | if(privateKeyHex.length()!=64) { 106 | System.out.println("The private key should be given in 64 HEX numbers."); 107 | return; 108 | } 109 | ECKey keyPair = new ECKey(); 110 | try{ 111 | keyPair=ECKey.fromPrivate(Hex.decodeHex(privateKeyHex.toCharArray())); 112 | }catch(DecoderException e) { 113 | System.out.println("Couldn't create ECKey with privateKeyHex = " + privateKeyHex); 114 | } 115 | String address = new String(Hex.encodeHex(keyPair.getAddress())); 116 | System.out.println("Generated new account: 0x" + address); 117 | byte[] priv = keyPair.getPrivKeyBytes(); 118 | try { 119 | OutputStream os = new FileOutputStream(accountFile + ".pkey"); 120 | JSONObject obj=new JSONObject(); 121 | obj.put("privkey", new String(Hex.encodeHex(priv))); 122 | obj.put("address", address); 123 | os.write(obj.toJSONString().getBytes()); 124 | os.close(); 125 | } catch (IOException e) { 126 | System.out.println("Couldn't write to file: " + accountFile + " " + e.toString()); 127 | } 128 | } 129 | 130 | /** 131 | * Reads all of the account files in the directory and lists which 132 | * are usable for testing channels with. Looks for files with the 133 | * .pkey extension. 134 | */ 135 | public void listAccounts() { 136 | JSONParser parser = new JSONParser(); 137 | JSONObject jobj=new JSONObject(); 138 | File dir = new File("."); 139 | File[] filesList = dir.listFiles(); 140 | for (File file : filesList) { 141 | if (file.isFile()) { 142 | if(file.getName().contains(".pkey")) { 143 | //System.out.println(file.getName()); 144 | try { 145 | jobj = (JSONObject)parser.parse(new FileReader(file.getName())); 146 | System.out.println("0x" + ((String)jobj.get("address"))); 147 | } catch(Exception ex) { 148 | System.out.println("Couldn't read from file: " + file.getName() + " " + ex.toString()); 149 | } 150 | } 151 | } 152 | } 153 | } 154 | 155 | /** 156 | * This function should be used by sender to create the balance proof hash by using recevier's address, 157 | * the block index where the channel has been created, 158 | * the balance that the sender would like to pay to the receiver, and the channel address 159 | * 160 | * @param receiverAddress account ID of receiver in Hex String with 40 Hex digits, 0x is optional. 161 | * @param open_block_number the decimal literal of the open block index. 162 | * @param balance the double literal of real amount of token paying to receiver 163 | * @param channelAddress the channel address in Hex String with 40 Hex digits, 0x is optional. 164 | * @return the hash result. 165 | */ 166 | private static byte[] getBalanceMsgHash(String receiverAddress,String open_block_number,String balance, String channelAddress) { 167 | byte[] receiverAddressBytes=new byte[0]; 168 | byte[] channelAddressBytes=new byte[0]; 169 | byte[] openBlockNumberBytes=new byte[0]; 170 | byte[] balanceInChannelBytes=new byte[0]; 171 | 172 | receiverAddress=receiverAddress.startsWith("0x")?receiverAddress.substring(2):receiverAddress; 173 | channelAddress=channelAddress.startsWith("0x")?channelAddress.substring(2):channelAddress; 174 | try { 175 | receiverAddressBytes=Hex.decodeHex(receiverAddress.toCharArray()); 176 | }catch(DecoderException e) { 177 | System.out.println("The provided receiver's address is not valid."); 178 | return null; 179 | } 180 | if(receiverAddressBytes.length!=LENGTH_OF_ID_IN_BYTES) { 181 | System.out.println("The provided receiver's address is not valid."); 182 | return null; 183 | } 184 | try { 185 | channelAddressBytes=Hex.decodeHex(channelAddress.toCharArray()); 186 | }catch(DecoderException e) { 187 | System.out.println("The provided channel's address is not valid."); 188 | return null; 189 | } 190 | if(channelAddressBytes.length!=LENGTH_OF_ID_IN_BYTES) { 191 | System.out.println("The provided channel's address is not valid."); 192 | return null; 193 | } 194 | try { 195 | Integer.parseInt(open_block_number); 196 | }catch(NumberFormatException e){ 197 | System.out.println("The provided open block n is not valid."); 198 | return null; 199 | } 200 | 201 | BigInteger tempBalance=null; 202 | try { 203 | tempBalance=Utility.decimalToBigInteger(balance, appendingZerosForTKN); 204 | }catch(NumberFormatException e) { 205 | System.out.println("The provided balance is not valid."); 206 | return null; 207 | } 208 | 209 | try{ 210 | openBlockNumberBytes=Hex.decodeHex(Utility.prependingZeros(Integer.toHexString(Integer.parseInt(open_block_number)),8).toCharArray()); 211 | balanceInChannelBytes=Hex.decodeHex(Utility.prependingZeros(tempBalance.toString(16),48).toCharArray()); 212 | }catch(DecoderException e) { 213 | 214 | } 215 | byte[] dataTypeName="string message_idaddress receiveruint32 block_createduint192 balanceaddress contract".getBytes(); 216 | byte[] dataValue=Utility.concatenateByteArrays("Sender balance proof signature".getBytes(),receiverAddressBytes,openBlockNumberBytes,balanceInChannelBytes,channelAddressBytes); 217 | byte[] result = Utility.getSHA3HashHex(Utility.concatenateByteArrays(Utility.getSHA3HashHex(dataTypeName),Utility.getSHA3HashHex(dataValue))); 218 | if(debugInfo) { 219 | System.out.println("The value to be hashed in getBalanceMessageHash is "+new String(Hex.encodeHexString(Utility.concatenateByteArrays(Utility.getSHA3HashHex(dataTypeName),Utility.getSHA3HashHex(dataValue))))); 220 | System.out.println("The result of getBalanceMessageHash is "+new String(Hex.encodeHexString(result))); 221 | } 222 | return result; 223 | } 224 | 225 | /** 226 | * This function should be used by receiver to create the closing hash by using sender's address, 227 | * the block index where the channel has been created, 228 | * the balance that the sender would like to pay to the receiver, and the channel address 229 | * 230 | * @param senderAddress account ID of sender in Hex String with 40 Hex digits, 0x is optional. 231 | * @param open_block_number the decimal literal of the open block index. 232 | * @param balance the double literal of real amount of token paying to receiver 233 | * @param channelAddress the channel address in Hex String with 40 Hex digits, 0x is optional. 234 | * @return the hash result. 235 | */ 236 | private static byte[] getClosingMsgHash(String senderAddress,String open_block_number,String balance, String channelAddress) { 237 | byte[] receiverAddressBytes=new byte[0]; 238 | byte[] channelAddressBytes=new byte[0]; 239 | byte[] openBlockNumberBytes=new byte[0]; 240 | byte[] balanceInChannelBytes=new byte[0]; 241 | 242 | senderAddress=senderAddress.startsWith("0x")?senderAddress.substring(2):senderAddress; 243 | channelAddress=channelAddress.startsWith("0x")?channelAddress.substring(2):channelAddress; 244 | try { 245 | receiverAddressBytes=Hex.decodeHex(senderAddress.toCharArray()); 246 | }catch(DecoderException e) { 247 | System.out.println("The provided receiver's address is not valid."); 248 | return null; 249 | } 250 | if(receiverAddressBytes.length!=LENGTH_OF_ID_IN_BYTES) { 251 | System.out.println("The provided receiver's address is not valid."); 252 | return null; 253 | } 254 | try { 255 | channelAddressBytes=Hex.decodeHex(channelAddress.toCharArray()); 256 | }catch(DecoderException e) { 257 | System.out.println("The provided channel's address is not valid."); 258 | return null; 259 | } 260 | if(channelAddressBytes.length!=LENGTH_OF_ID_IN_BYTES) { 261 | System.out.println("The provided channel's address is not valid."); 262 | return null; 263 | } 264 | try { 265 | Integer.parseInt(open_block_number); 266 | }catch(NumberFormatException e){ 267 | System.out.println("The provided open block n is not valid."); 268 | return null; 269 | } 270 | 271 | BigInteger tempBalance=null; 272 | try { 273 | tempBalance=Utility.decimalToBigInteger(balance, appendingZerosForTKN); 274 | }catch(NumberFormatException e) { 275 | System.out.println("The provided balance is not valid."); 276 | return null; 277 | } 278 | 279 | 280 | try{ 281 | openBlockNumberBytes=Hex.decodeHex(Utility.prependingZeros(Integer.toHexString(Integer.parseInt(open_block_number)),8).toCharArray()); 282 | balanceInChannelBytes=Hex.decodeHex(Utility.prependingZeros(tempBalance.toString(16),48).toCharArray()); 283 | }catch(DecoderException e) { 284 | 285 | } 286 | byte[] dataTypeName = "string message_idaddress senderuint32 block_createduint192 balanceaddress contract".getBytes(); 287 | byte[] dataValue= Utility.concatenateByteArrays("Receiver closing signature".getBytes(),receiverAddressBytes,openBlockNumberBytes,balanceInChannelBytes,channelAddressBytes); 288 | byte[] result = Utility.getSHA3HashHex(Utility.concatenateByteArrays(Utility.getSHA3HashHex(dataTypeName),Utility.getSHA3HashHex(dataValue))); 289 | if(debugInfo) { 290 | System.out.println("The value to be hashed in getClosingMsgHash is "+new String(Hex.encodeHexString(Utility.concatenateByteArrays(Utility.getSHA3HashHex(dataTypeName),Utility.getSHA3HashHex(dataValue))))); 291 | System.out.println("The result of getClosingMsgHash is "+new String(Hex.encodeHexString(result))); 292 | } 293 | return result; 294 | } 295 | 296 | /** 297 | * This function should be used by receiver to create channel closing signature with 298 | * a. sender's address, 299 | * b. the block index where the channel has been created, 300 | * c. the balance that the receiver would like to receive from sender, and 301 | * d. the channel address 302 | * 303 | * @param senderAddr account ID of sender in Hex String with 40 Hex digits, 0x is optional. 304 | * @param channelAddr the channel address in Hex String with 40 Hex digits, 0x is optional. 305 | * @param open_block_number the decimal literal of the block index where the channel was open at. 306 | * @param balance the double literal of real amount of token paying to receiver 307 | * @param receiverName the receiver's name used to create a wallet to sign the signature. 308 | * @return the channel closing signature. 309 | */ 310 | private static byte[] getClosingMsgHashSig(String senderAddr,String channelAddr, String openBlockNum, String balance, String receiverName) { 311 | Wallet receiverWallet=null; 312 | try { 313 | receiverWallet=new Wallet(receiverName); 314 | receiverWallet.update(httpAgent); 315 | }catch(Exception e) { 316 | return null; 317 | } 318 | byte [] closingMsgHash=getClosingMsgHash(senderAddr,openBlockNum,balance,channelAddr); 319 | if(closingMsgHash==null) { 320 | System.out.println("Argument Error."); 321 | return null; 322 | } 323 | byte [] closingMsgHashHex=null; 324 | try { 325 | closingMsgHashHex=Hex.decodeHex(new String(Hex.encodeHex(closingMsgHash)).toCharArray()); 326 | }catch (DecoderException e) { 327 | System.out.println("Couldn't convert msgHashHex = 0x" + Hex.encodeHexString(closingMsgHash) + " to byte array."); 328 | return null; 329 | } 330 | return receiverWallet.signMessage(closingMsgHashHex); 331 | 332 | } 333 | 334 | /** 335 | * This function should be used by sender to create balance proof signature with receiver's address, 336 | * the block index where the channel has been created, 337 | * the balance that the sender would like to pay to the receiver, and the channel address 338 | * 339 | * @param receiverAddr account ID of receiver in Hex String with 40 Hex digits, 0x is optional. 340 | * @param channelAddr the channel address in Hex String with 40 Hex digits, 0x is optional. 341 | * @param open_block_number the decimal literal of the open block index. 342 | * @param balance the double literal of real amount of token paying to receiver 343 | * @param senderName the sender's name used to create a wallet to sign the signature. 344 | * @return the balance proof signature. 345 | */ 346 | private static byte[] getBalanceMsgHashSig(String receiverAddr,String channelAddr, String openBlockNum, String balance, String senderName) { 347 | Wallet senderWallet=null; 348 | try { 349 | senderWallet=new Wallet(senderName); 350 | senderWallet.update(httpAgent); 351 | }catch(Exception e) { 352 | return null; 353 | } 354 | 355 | byte [] balanceMsgHash=getBalanceMsgHash(receiverAddr,openBlockNum,balance,channelAddr); 356 | if(balanceMsgHash==null) { 357 | System.out.println("Argument Error."); 358 | return null; 359 | } 360 | byte [] balanceMsgHashHex=null; 361 | try { 362 | balanceMsgHashHex=Hex.decodeHex(new String(Hex.encodeHex(balanceMsgHash)).toCharArray()); 363 | }catch (DecoderException e) { 364 | System.out.println("Couldn't convert msgHashHex = 0x" + Hex.encodeHexString(balanceMsgHash) + " to byte array."); 365 | return null; 366 | } 367 | return senderWallet.signMessage(balanceMsgHashHex); 368 | } 369 | 370 | /** 371 | * This function is to close the channel in a cooperative manner. 372 | * @param delegatorName the delegator's name used to retrieve the wallet, as the signer of the channel closing transaction. 373 | * @param senderName the name of sender of this channel 374 | * @param receiverName the name of receiver of this channel 375 | * @param openBlockNum the block index where the channel was open in decimal literal 376 | * @param balance the double literal of the amount of taken paying to the receiver. 377 | */ 378 | public void closeChannelCooperatively(String delegatorName, String senderName, String receiverName, String openBlockNum, String balance) { 379 | BigInteger tempBalance=null; 380 | try { 381 | tempBalance=Utility.decimalToBigInteger(balance, appendingZerosForTKN); 382 | }catch(NumberFormatException e) { 383 | System.out.println("The provided balance is not valid."); 384 | return; 385 | } 386 | Wallet delegatorWallet=null; 387 | Wallet senderWallet=null; 388 | Wallet receiverWallet=null; 389 | try { 390 | delegatorWallet=new Wallet(delegatorName); 391 | delegatorWallet.update(httpAgent); 392 | senderWallet=new Wallet(senderName); 393 | senderWallet.update(httpAgent); 394 | receiverWallet=new Wallet(receiverName); 395 | receiverWallet.update(httpAgent); 396 | }catch(Exception e) { 397 | System.out.println("The delagator/sender/receiver cannot be found."); 398 | return; 399 | } 400 | 401 | byte[] closing_Msg_Hash_Sig=getClosingMsgHashSig(senderWallet.getAccountID(),channelAddr,openBlockNum,balance,receiverName); 402 | byte[] balance_Msg_Hash_Sig=getBalanceMsgHashSig(receiverWallet.getAccountID(),channelAddr,openBlockNum,balance,senderName); 403 | if(closing_Msg_Hash_Sig==null||balance_Msg_Hash_Sig==null) { 404 | System.out.println("Argument Error!"); 405 | return; 406 | } 407 | if(debugInfo) { 408 | System.out.println("The signed closingMsgHash is 0x"+Hex.encodeHexString(closing_Msg_Hash_Sig)); 409 | System.out.println("The signed balanceMsgHash is 0x"+Hex.encodeHexString(balance_Msg_Hash_Sig)); 410 | } 411 | byte[] balance_Msg_Hash_Sig_r=Arrays.copyOfRange(balance_Msg_Hash_Sig, 0, 32); 412 | byte[] balance_Msg_Hash_Sig_s=Arrays.copyOfRange(balance_Msg_Hash_Sig, 32, 64); 413 | byte[] balance_Msg_Hash_Sig_v=Arrays.copyOfRange(balance_Msg_Hash_Sig, 64, 65); 414 | byte[] closing_Msg_Hash_Sig_r=Arrays.copyOfRange(closing_Msg_Hash_Sig, 0, 32); 415 | byte[] closing_Msg_Hash_Sig_s=Arrays.copyOfRange(closing_Msg_Hash_Sig, 32, 64); 416 | byte[] closing_Msg_Hash_Sig_v=Arrays.copyOfRange(closing_Msg_Hash_Sig, 64, 65); 417 | 418 | //if(debugInfo) { 419 | System.out.println("User "+delegatorName+" is the delegator to close the channel "+senderName+" ==> "+receiverName+" at balance = "+balance+"."); 420 | //} 421 | 422 | 423 | CallTransaction.Function cooperativeClose=channelContract.getByName("cooperativeClose"); 424 | byte [] cooperativeCloseFunctionBytes=cooperativeClose.encode(receiverWallet.getAccountID(), 425 | new BigInteger(openBlockNum,10),tempBalance,balance_Msg_Hash_Sig_r,balance_Msg_Hash_Sig_s,new BigInteger(balance_Msg_Hash_Sig_v),closing_Msg_Hash_Sig_r,closing_Msg_Hash_Sig_s,new BigInteger(closing_Msg_Hash_Sig_v)); 426 | String querycooperativeCloseGasString = "{\"method\":\"eth_estimateGas\"," + 427 | "\"params\":[" + 428 | "{" + 429 | "\"from\":\""+delegatorWallet.getAccountID()+"\"," + 430 | "\"to\":\""+channelAddr+"\"," + 431 | "\"value\":\""+"0x"+new BigInteger("0",10).toString(16)+"\","+ 432 | "\"data\":\""+"0x" + new String(org.apache.commons.codec.binary.Hex.encodeHex(cooperativeCloseFunctionBytes))+"\"" + 433 | "}" + 434 | "]," + 435 | "\"id\":42,\"jsonrpc\":\"2.0\"}"; 436 | if(debugInfo) { 437 | System.out.println("The request string of querycooperativeCloseGasString is "+querycooperativeCloseGasString); 438 | } 439 | String cooperativeCloseGasEstimate=""; 440 | try { 441 | cooperativeCloseGasEstimate=(String)httpAgent.getHttpResponse(querycooperativeCloseGasString); 442 | }catch (IOException e) { 443 | System.out.println("Invoking function with given arguments is not allowed."); 444 | return; 445 | } 446 | if(debugInfo) { 447 | System.out.println("The estimatedGas of cooperative channel closing is "+cooperativeCloseGasEstimate+"."); 448 | } 449 | 450 | Transaction cooperativeCloseTrans = new Transaction(Utility.bigIntegerToBytes(delegatorWallet.nonce()), // nonce 451 | Utility.bigIntegerToBytes(gasPrice), // gas price 452 | Utility.bigIntegerToBytes(new BigInteger(cooperativeCloseGasEstimate.substring(2),16)), // gas limit 453 | ByteUtil.hexStringToBytes(channelAddr), // to id 454 | Utility.bigIntegerToBytes(new BigInteger("0",10)), // value 455 | cooperativeCloseFunctionBytes, 42);// chainid 456 | delegatorWallet.signTransaction(cooperativeCloseTrans); 457 | String signedCooperativeCloseTranss = "0x" + new String(org.apache.commons.codec.binary.Hex.encodeHex(cooperativeCloseTrans.getEncoded())); 458 | String cooperativeCloseSendRawTransactionString = "{\"method\":\"eth_sendRawTransaction\",\"params\":[\"" 459 | + signedCooperativeCloseTranss + "\"],\"id\":42,\"jsonrpc\":\"2.0\"}"; 460 | 461 | String myTransactionID=""; 462 | try { 463 | myTransactionID=(String)httpAgent.getHttpResponse(cooperativeCloseSendRawTransactionString); 464 | }catch (IOException e) { 465 | System.out.println("Fail to execute HTTP request."); 466 | return; 467 | } 468 | 469 | if(!"".equals(myTransactionID)) { 470 | System.out.println("Waiting for Kovan to mine transactions ... "); 471 | waitingForTransaction(myTransactionID); 472 | } 473 | //if(debugInfo) { 474 | System.out.println("\bChannel has been closed."); 475 | //} 476 | } 477 | 478 | public void getTokenBalance(String accountName){ 479 | Wallet myWallet=null; 480 | try{ 481 | myWallet=new Wallet(accountName); 482 | myWallet.update(httpAgent); 483 | }catch(Exception e) { 484 | System.out.println("The wallet cannot be retrived for "+accountName); 485 | return; 486 | } 487 | 488 | CallTransaction.Function balanceOf = tokenContract.getByName("balanceOf"); 489 | byte [] functionBytes=balanceOf.encode(myWallet.getAccountID()); 490 | String requestString = "{\"method\":\"eth_call\"," + 491 | "\"params\":[" + 492 | "{" + 493 | "\"to\":\""+tokenAddr+"\"," + 494 | "\"data\":\""+"0x" + new String(org.apache.commons.codec.binary.Hex.encodeHex(functionBytes))+"\"" + 495 | "}," + 496 | "\"latest\"" + 497 | "]," + 498 | "\"id\":42,\"jsonrpc\":\"2.0\"}"; 499 | if(debugInfo) { 500 | System.out.println("Request in getTokenBalance = "+requestString); 501 | } 502 | String myTokenBalance=""; 503 | try { 504 | myTokenBalance=(String)httpAgent.getHttpResponse(requestString); 505 | }catch (IOException e) { 506 | System.out.println("Cannot get token balance for "+accountName); 507 | return; 508 | } 509 | System.out.println("Balance of "+accountName+" = "+new Float(new BigInteger(myTokenBalance.substring(2),16).doubleValue()/(new BigInteger(appendingZerosForTKN,10).doubleValue())).toString()+" TKN"); 510 | 511 | } 512 | 513 | /** 514 | * Create a channel from sender to receiver. The sender needs to sign the transactions of approve and channel creation 515 | * @param senderAccountName the name of the sender 516 | * @param receiverAccountName the name of the receiver 517 | * @param deposit the double literal as the initial deposit of the channel. 518 | */ 519 | public void createChannel(String senderAccountName, String receiverAccountName, String deposit) { 520 | BigInteger initDeposit=null; 521 | try { 522 | initDeposit=Utility.decimalToBigInteger(deposit, appendingZerosForTKN); 523 | }catch(NumberFormatException e) { 524 | System.out.println("The provided balance is not valid."); 525 | return; 526 | } 527 | if(MAX_DEPOSIT.compareTo(initDeposit)<0) { 528 | System.out.println("Please choose a deposit <= "+MAX_DEPOSIT.toString(10)); 529 | return; 530 | } 531 | Wallet senderWallet=null; 532 | Wallet receiverWallet=null; 533 | try { 534 | senderWallet=new Wallet(senderAccountName); 535 | senderWallet.update(httpAgent); 536 | receiverWallet=new Wallet(receiverAccountName); 537 | receiverWallet.update(httpAgent); 538 | }catch(Exception e) { 539 | System.out.println("The sender/receiver cannot be found."); 540 | return; 541 | } 542 | 543 | 544 | //if(debugInfo) { 545 | System.out.println("User "+senderAccountName+" tries to open a channel to pay "+receiverAccountName+" up to " + deposit +" Tokens at maximum."); 546 | //} 547 | 548 | CallTransaction.Function approve=tokenContract.getByName("approve"); 549 | byte [] approveFunctionBytes=approve.encode(channelAddr,initDeposit); 550 | String queryApproveGasString = "{\"method\":\"eth_estimateGas\"," + 551 | "\"params\":[" + 552 | "{" + 553 | "\"from\":\""+senderWallet.getAccountID()+"\"," + 554 | "\"to\":\""+tokenAddr+"\"," + 555 | "\"value\":\""+"0x"+new BigInteger("0",10).toString(16)+"\","+ 556 | "\"data\":\""+"0x" + new String(org.apache.commons.codec.binary.Hex.encodeHex(approveFunctionBytes))+"\"" + 557 | "}" + 558 | "]," + 559 | "\"id\":42,\"jsonrpc\":\"2.0\"}"; 560 | if(debugInfo) { 561 | System.out.println("The request string of queryApproveGasString is "+queryApproveGasString); 562 | } 563 | String approveGasEstimate=""; 564 | try { 565 | approveGasEstimate=(String)httpAgent.getHttpResponse(queryApproveGasString); 566 | }catch (IOException e) { 567 | System.out.println("Invoking function with given arguments is not allowed."); 568 | return; 569 | } 570 | if(debugInfo) { 571 | System.out.println("The estimatedGas of approve is "+approveGasEstimate+"."); 572 | System.out.println("The nonce of "+senderAccountName+" is "+senderWallet.nonce().toString(10)); 573 | } 574 | 575 | Transaction approveTrans = new Transaction(Utility.bigIntegerToBytes(senderWallet.nonce()), // nonce 576 | Utility.bigIntegerToBytes(gasPrice), // gas price 577 | Utility.bigIntegerToBytes(new BigInteger(approveGasEstimate.substring(2),16)), // gas limit 578 | ByteUtil.hexStringToBytes(tokenAddr), // to id 579 | Utility.bigIntegerToBytes(new BigInteger("0",10)), // value 580 | approveFunctionBytes, 42);// chainid 581 | senderWallet.signTransaction(approveTrans); 582 | String signedApproveTrans = "0x" + new String(org.apache.commons.codec.binary.Hex.encodeHex(approveTrans.getEncoded())); 583 | String approveSendRawTransactionString = "{\"method\":\"eth_sendRawTransaction\",\"params\":[\"" 584 | + signedApproveTrans + "\"],\"id\":42,\"jsonrpc\":\"2.0\"}"; 585 | 586 | String myTransactionID1=""; 587 | try { 588 | myTransactionID1=(String)httpAgent.getHttpResponse(approveSendRawTransactionString); 589 | }catch (IOException e) { 590 | System.out.println("Fail to execute HTTP request."); 591 | return; 592 | } 593 | 594 | if(!"".equals(myTransactionID1)) { 595 | System.out.println("Waiting for Kovan to mine transactions ... "); 596 | waitingForTransaction(myTransactionID1); 597 | } 598 | if(debugInfo) { 599 | System.out.println("\bApproving funding transfer is done."); 600 | } 601 | try { 602 | senderWallet.updateNonce(httpAgent); 603 | }catch(Exception e){ 604 | System.out.println("Updating nonce value is failed."); 605 | return; 606 | } 607 | if(debugInfo) { 608 | System.out.println("The nonce of "+senderAccountName+" is "+senderWallet.nonce().toString(10)); 609 | } 610 | 611 | CallTransaction.Function createChannelERC20 = channelContract.getByName("createChannelERC20"); 612 | byte [] createChannelERC20FunctionBytes=createChannelERC20.encode(receiverWallet.getAccountID(),initDeposit); 613 | String queryCreatChannelGasString = "{\"method\":\"eth_estimateGas\"," + 614 | "\"params\":[" + 615 | "{" + 616 | "\"from\":\""+senderWallet.getAccountID()+"\"," + 617 | "\"to\":\""+channelAddr+"\"," + 618 | "\"value\":\""+"0x"+new BigInteger("0",10).toString(16)+"\","+ 619 | "\"data\":\""+"0x" + new String(org.apache.commons.codec.binary.Hex.encodeHex(createChannelERC20FunctionBytes))+"\"" + 620 | "}" + 621 | "]," + 622 | "\"id\":42,\"jsonrpc\":\"2.0\"}"; 623 | if(debugInfo) { 624 | System.out.println("The request string of queryCreatChannelGasString is "+queryCreatChannelGasString); 625 | } 626 | String creatChannelGasEstimate=""; 627 | try { 628 | creatChannelGasEstimate=(String)httpAgent.getHttpResponse(queryCreatChannelGasString); 629 | }catch (IOException e) { 630 | System.out.println("Invoking function with given arguments is not allowed."); 631 | return; 632 | } 633 | 634 | if(debugInfo) { 635 | System.out.println("The estimatedGas of createChannelERC20 is "+creatChannelGasEstimate); 636 | } 637 | Transaction createTrans = new Transaction(Utility.bigIntegerToBytes(senderWallet.nonce()), // nonce 638 | Utility.bigIntegerToBytes(gasPrice), // gas price 639 | Utility.bigIntegerToBytes(new BigInteger(creatChannelGasEstimate.substring(2),16)), // gas limit 640 | ByteUtil.hexStringToBytes(channelAddr), // to id 641 | Utility.bigIntegerToBytes(new BigInteger("0",10)), // value 642 | createChannelERC20FunctionBytes, 42);// chainid 643 | senderWallet.signTransaction(createTrans); 644 | String signedChannelCreationTrans = "0x" + new String(org.apache.commons.codec.binary.Hex.encodeHex(createTrans.getEncoded())); 645 | String createChannelSendRawTransactionString = "{\"method\":\"eth_sendRawTransaction\",\"params\":[\"" 646 | + signedChannelCreationTrans + "\"],\"id\":42,\"jsonrpc\":\"2.0\"}"; 647 | 648 | String myTransactionID2=""; 649 | try { 650 | myTransactionID2=(String)httpAgent.getHttpResponse(createChannelSendRawTransactionString); 651 | }catch (IOException e) { 652 | System.out.println("Fail to execute HTTP request."); 653 | return; 654 | } 655 | 656 | if(!"".equals(myTransactionID2)) { 657 | String blockNumberHex=waitingForTransaction(myTransactionID2); 658 | 659 | System.out.println("\bChannel has been opened in block "+new BigInteger(blockNumberHex.substring(2),16).toString(10)); 660 | 661 | Digest keccak256 = Digests.keccak256(); 662 | 663 | 664 | String firstArgVal=senderWallet.getAccountID().substring(2).toLowerCase(); 665 | String secondArgVal=receiverWallet.getAccountID().substring(2).toLowerCase(); 666 | String thirdArgVal=Utility.prependingZeros(blockNumberHex.substring(2), 8); 667 | try{ 668 | byte[] data = Utility.concatenateByteArrays(Hex.decodeHex(firstArgVal.toCharArray()),Hex.decodeHex(secondArgVal.toCharArray()),Hex.decodeHex(thirdArgVal.toCharArray())); 669 | if(debugInfo) { 670 | System.out.println("The keccak256 argument of bytes in string "+Hex.encodeHexString(data)); 671 | } 672 | byte[] keyInBytes=keccak256.reset().update(data).digest(); 673 | String channelKeyHex = "0x"+new String(Hex.encodeHexString(keyInBytes)); 674 | System.out.println("\bChannel key = "+channelKeyHex); 675 | System.out.println("Channel on Koven can be found on page:\nhttps://kovan.etherscan.io/address/"+channelAddr+"#readContract"); 676 | }catch (DecoderException e) { 677 | System.out.println("Hex string cannot be converted to byte array!"); 678 | } 679 | 680 | } 681 | return; 682 | 683 | } 684 | 685 | /** 686 | * Allows user buy some token. If the user has no token, he can only put zero deposit when creating the channel. 687 | * @param accountName the name of the buyer 688 | * @param amountOfEther the double literal of Ethers would like to trade for tokens. 0.1 Ether OK for demo. 689 | */ 690 | public void buyToken(String accountName,String amountOfEther){ 691 | BigInteger value=null; 692 | try { 693 | value=Utility.decimalToBigInteger(amountOfEther, appendingZerosForETH); 694 | }catch(NumberFormatException e) { 695 | System.out.println("The provided balance is not valid."); 696 | return; 697 | } 698 | 699 | Wallet myWallet=null; 700 | try{ 701 | myWallet=new Wallet(accountName); 702 | myWallet.update(httpAgent); 703 | }catch(Exception e) { 704 | System.out.println("Cannot retrive the wallet for "+accountName); 705 | return; 706 | } 707 | 708 | if(debugInfo) { 709 | System.out.println("User "+accountName+"("+myWallet.getAccountID()+") will trade "+value.toString()+" Wei to Token."); 710 | } 711 | 712 | CallTransaction.Function mint = tokenContract.getByName("mint"); 713 | byte [] functionBytes=mint.encode(); 714 | String queryGasString = "{\"method\":\"eth_estimateGas\"," + 715 | "\"params\":[" + 716 | "{" + 717 | "\"from\":\""+myWallet.getAccountID()+"\"," + 718 | "\"to\":\""+tokenAddr+"\"," + 719 | "\"value\":\""+"0x"+value.toString(16)+"\","+ 720 | "\"data\":\""+"0x" + new String(org.apache.commons.codec.binary.Hex.encodeHex(functionBytes))+"\"" + 721 | "}" + 722 | "]," + 723 | "\"id\":42,\"jsonrpc\":\"2.0\"}"; 724 | String gasEstimateResult=""; 725 | try { 726 | gasEstimateResult=(String)httpAgent.getHttpResponse(queryGasString); 727 | }catch (IOException e) { 728 | System.out.println("Invoking function with given arguments is not allowed."); 729 | return; 730 | } 731 | if(debugInfo) { 732 | System.out.println("The estimatedGas of mint is "+gasEstimateResult); 733 | } 734 | 735 | if(debugInfo) { 736 | System.out.println("Total ether balance of "+accountName+" is "+myWallet.etherBalance().toString(10)); 737 | } 738 | if(new BigInteger(gasEstimateResult.substring(2),16).multiply(gasPrice).add(value).compareTo(myWallet.etherBalance())>0) { 739 | System.out.println("Insufficient Ether to finish the transaction."); 740 | return; 741 | } 742 | 743 | 744 | if(debugInfo) { 745 | System.out.println("The nonce of "+accountName+" is "+myWallet.nonce()); 746 | } 747 | 748 | Transaction t = new Transaction(Utility.bigIntegerToBytes(myWallet.nonce()), // nonce 749 | Utility.bigIntegerToBytes(gasPrice), // gas price 750 | Utility.bigIntegerToBytes(new BigInteger(gasEstimateResult.substring(2),16)), // gas limit 751 | ByteUtil.hexStringToBytes(tokenAddr), // to id 752 | Utility.bigIntegerToBytes(value), // value 753 | functionBytes, 42);// chainid 754 | myWallet.signTransaction(t); 755 | String signedTrans = "0x" + new String(org.apache.commons.codec.binary.Hex.encodeHex(t.getEncoded())); 756 | String mintSendRawTransactionString = "{\"method\":\"eth_sendRawTransaction\",\"params\":[\"" 757 | + signedTrans + "\"],\"id\":42,\"jsonrpc\":\"2.0\"}"; 758 | 759 | String myTransactionID=""; 760 | try { 761 | myTransactionID=(String)httpAgent.getHttpResponse(mintSendRawTransactionString); 762 | }catch (IOException e) { 763 | System.out.println("Fail to execute HTTP request."); 764 | return; 765 | } 766 | 767 | if(!"".equals(myTransactionID)) { 768 | System.out.println("Waiting for Kovan to mine transactions ... "); 769 | waitingForTransaction(myTransactionID); 770 | } 771 | System.out.println("\bYou have been given 50 tokens."); 772 | 773 | 774 | } 775 | 776 | /** 777 | * Waiting for the transaction to get minded 778 | * @param myTransactionID 779 | * @return the blockNumber where the transaction is at 780 | */ 781 | private static String waitingForTransaction(String myTransactionID) { 782 | if(debugInfo) { 783 | System.out.println("Transaction ID = "+myTransactionID); 784 | } 785 | boolean loop=true; 786 | String blockNumber=new String(); 787 | Object tempObj=null; 788 | String queryTransactionString = "{\"method\":\"eth_getTransactionReceipt\"," + 789 | "\"params\":[\"" + 790 | myTransactionID + 791 | "\"]," + 792 | "\"id\":42,\"jsonrpc\":\"2.0\"}"; 793 | while(loop){ 794 | 795 | try { 796 | tempObj=httpAgent.getHttpResponse(queryTransactionString); 797 | }catch (IOException e) { 798 | System.out.println("Fail to execute HTTP request."); 799 | return ""; 800 | } 801 | if(tempObj==null){ 802 | //do nothing 803 | }else{ 804 | loop=false; 805 | JSONObject jsonObject=(JSONObject) tempObj; 806 | //The jsonObject can be further parsed to get more information. 807 | blockNumber = (String)jsonObject.get("blockNumber"); 808 | } 809 | try { 810 | int i=5; 811 | while(i-->0) { 812 | Thread.sleep(INTERVAL_CHECK_TRANS_DONE); 813 | System.out.print("\b\\"); 814 | Thread.sleep(INTERVAL_CHECK_TRANS_DONE); 815 | System.out.print("\b|"); 816 | Thread.sleep(INTERVAL_CHECK_TRANS_DONE); 817 | System.out.print("\b/"); 818 | Thread.sleep(INTERVAL_CHECK_TRANS_DONE); 819 | System.out.print("\b-"); 820 | } 821 | }catch (InterruptedException e) { 822 | 823 | } 824 | } 825 | return blockNumber; 826 | } 827 | 828 | /** 829 | * 830 | * @param accountName the name of the account would like to query. 831 | */ 832 | public void getAccountInfo(String accountName) { 833 | Wallet myWallet=null; 834 | try { 835 | myWallet=new Wallet(accountName); 836 | myWallet.update(httpAgent); 837 | }catch(Exception e) { 838 | System.out.println("Cannot retrive for "+accountName); 839 | return; 840 | } 841 | System.out.println("**********************************************"); 842 | System.out.println("AccountName:\t"+myWallet.accountName()); 843 | System.out.println("AccountID:\t"+myWallet.getAccountID()); 844 | System.out.println("AccountNonce:\t"+myWallet.nonce().toString(10)); 845 | System.out.println("AccountBalance:\t"+myWallet.etherBalance().toString(10)+" (Wei)"); 846 | System.out.println("**********************************************"); 847 | } 848 | 849 | /** 850 | * Displays a list of all available functions 851 | */ 852 | private static void displayFunctions() { 853 | System.out.println("Possible Functions: "); 854 | Class cls = MicroRaiden.class; 855 | Method methlist[] = cls.getDeclaredMethods(); 856 | for (int i = 0; i < methlist.length; i++) { 857 | Method m = methlist[i]; 858 | if(m.getName().equals("main") 859 | || m.getName().equals("displayFunctions") 860 | || m.getName().equals("getECKeyByName") 861 | || m.getName().equals("waitingForTransaction") 862 | || m.getName().equals("getBalanceMsgHashSig") 863 | || m.getName().equals("getClosingMsgHashSig") 864 | || m.getName().equals("getClosingMsgHash") 865 | || m.getName().equals("getBalanceMsgHash")) { 866 | continue; 867 | } 868 | 869 | String params = ""; 870 | Class pvec[] = m.getParameterTypes(); 871 | for (int j = 0; j < pvec.length; j++) { 872 | params = params + pvec[j]; 873 | if(j < (pvec.length - 1)) { 874 | params = params + ", "; 875 | } 876 | } 877 | 878 | System.out.println(" " + m.getReturnType() + " " + m.getName() + "(" + params + ")"); 879 | } 880 | } 881 | 882 | public static void main(String[] args) throws Exception { 883 | 884 | MicroRaiden mr = new MicroRaiden(); 885 | JSONParser parser = new JSONParser(); 886 | 887 | try { 888 | Object obj = parser.parse(new FileReader("rm-ethereum.conf")); 889 | 890 | JSONObject jsonObject = (JSONObject) obj; 891 | for (Object key : jsonObject.keySet()) { 892 | switch((String)key) { 893 | case "debugInfo": 894 | debugInfo=((String) jsonObject.get(key)).equals("true")?true:false; 895 | break; 896 | case "gasPrice": 897 | gasPrice=new BigInteger((String) jsonObject.get(key),10); 898 | if(debugInfo) { 899 | System.out.println("The global gas price is set to be "+gasPrice.toString(10)); 900 | } 901 | break; 902 | case "rpcAddress": 903 | rpcAddress=((String) jsonObject.get(key)); 904 | if(debugInfo) { 905 | System.out.println("rpcAddress = "+rpcAddress); 906 | } 907 | break; 908 | case "channelAddr": 909 | channelAddr=((String) jsonObject.get(key)); 910 | if(debugInfo) { 911 | System.out.println("channelAddr = "+channelAddr); 912 | } 913 | break; 914 | case "tokenAddr": 915 | tokenAddr=((String) jsonObject.get(key)); 916 | if(debugInfo) { 917 | System.out.println("tokenAddr = "+tokenAddr); 918 | } 919 | break; 920 | case "channelABI": 921 | channelABI=((String) jsonObject.get(key)); 922 | if(debugInfo) { 923 | System.out.println("channelABI = "+channelABI); 924 | } 925 | channelContract = new CallTransaction.Contract(channelABI); 926 | break; 927 | case "tokenABI": 928 | tokenABI=((String) jsonObject.get(key)); 929 | if(debugInfo) { 930 | System.out.println("tokenABI = "+tokenABI); 931 | } 932 | tokenContract = new CallTransaction.Contract(tokenABI); 933 | break; 934 | case "appendingZerosForETH": 935 | appendingZerosForETH=((String) jsonObject.get(key)); 936 | if(debugInfo) { 937 | System.out.println("appendingZerosForETH = "+appendingZerosForETH); 938 | } 939 | break; 940 | case "appendingZerosForTKN": 941 | appendingZerosForTKN=((String) jsonObject.get(key)); 942 | if(debugInfo) { 943 | System.out.println("appendingZerosForTKN = "+appendingZerosForTKN); 944 | } 945 | break; 946 | case "maxDepositBits": 947 | MAX_DEPOSIT=new BigInteger("2",10).pow(Integer.parseInt(((String) jsonObject.get(key)))); 948 | gasPrice=new BigInteger((String) jsonObject.get(key),10); 949 | if(debugInfo) { 950 | System.out.println("MAX_DEPOSIT ="+MAX_DEPOSIT.toString(16)); 951 | } 952 | break; 953 | 954 | 955 | default: 956 | System.out.println("Unknown key is detected when parsing the configuration files."); 957 | } 958 | httpAgent=new Http(rpcAddress,debugInfo); 959 | 960 | } 961 | 962 | } catch (FileNotFoundException e) { 963 | 964 | } catch (ParseException e) { 965 | System.out.println("Couldn't parse contents in m-ethereum.conf as a JSON object."+e); 966 | } catch (IOException e) { 967 | System.out.println("Couldn't parse contents in m-ethereum.conf as a JSON object."+e); 968 | } 969 | 970 | if(args.length < 1) { 971 | System.out.println("Usage: microraiden-java "); 972 | displayFunctions(); 973 | return; 974 | } 975 | 976 | //get the function name - use reflection to call 977 | String functionName = args[0]; 978 | 979 | //some trickery to get the method with the params (if we just 980 | //try to search for the method without the params specified it 981 | //will only look for parameter-less version 982 | Class cls = Class.forName("MicroRaiden"); 983 | Method method = null; 984 | Method methlist[] = cls.getDeclaredMethods(); 985 | for (int i = 0; i < methlist.length; i++) { 986 | Method m = methlist[i]; 987 | if(m.getName().equals(functionName)) { 988 | method = m; 989 | break; 990 | } 991 | } 992 | 993 | //cast the args to the correct type for the function params 994 | //note if you use a weird type this will probably shit itself. 995 | Object arglist[] = new Object[args.length - 1]; 996 | Class pvec[] = method.getParameterTypes(); 997 | for(int i = 1; i < args.length; i++) { 998 | if(pvec.length < i) { 999 | break; 1000 | } 1001 | 1002 | String argtype = args[i].getClass().getName(); 1003 | String actualType = pvec[i-1].getName(); 1004 | if(!argtype.equals(actualType)) { 1005 | switch(actualType) { 1006 | case "int": { 1007 | arglist[i-1] = Integer.parseInt(args[i]); 1008 | break; 1009 | } 1010 | default: { 1011 | System.out.println("UNKNOWN PARAM TYPE: " + actualType); 1012 | return; 1013 | } 1014 | } 1015 | } else { 1016 | arglist[i-1] = args[i]; 1017 | } 1018 | } 1019 | 1020 | Object retobj = method.invoke(mr, arglist); 1021 | } 1022 | } 1023 | -------------------------------------------------------------------------------- /src/main/java/Utility.java: -------------------------------------------------------------------------------- 1 | import java.math.BigInteger; 2 | 3 | import org.kocakosm.pitaya.security.Digest; 4 | import org.kocakosm.pitaya.security.Digests; 5 | 6 | public class Utility { 7 | /** 8 | * 9 | * @param hexString string to be prepended zeros 10 | * @param totalWidth the width of the result 11 | * @return the required string with prepended zeros 12 | */ 13 | public static String prependingZeros(String hexString, int totalWidth) { 14 | String result=""; 15 | while(result.length()+hexString.length()19) { 64 | balance=balance.substring(0,balance.indexOf(".")+19); 65 | } 66 | String localAppendingZerosForTKN=template.substring(0, template.length()-balance.length()+1+balance.indexOf(".")); 67 | tempBalance=new BigInteger(balance.replace(".", "")).multiply(new BigInteger(localAppendingZerosForTKN)); 68 | }else { 69 | tempBalance=new BigInteger(balance,10).multiply(new BigInteger(template)); 70 | } 71 | return tempBalance; 72 | } 73 | 74 | /** 75 | * Convert BigInteger to the byte array used as arguments of calling smart contract functions. 76 | * @param value the BigInteger to be changed to byte array. 77 | * @return the byte array sent to contract functions. 78 | */ 79 | public static byte[] bigIntegerToBytes(BigInteger value) { 80 | if (value == null) 81 | return null; 82 | 83 | byte[] data = value.toByteArray(); 84 | 85 | if (data.length != 1 && data[0] == 0) { 86 | byte[] tmp = new byte[data.length - 1]; 87 | System.arraycopy(data, 1, tmp, 0, tmp.length); 88 | data = tmp; 89 | } 90 | return data; 91 | } 92 | 93 | /** 94 | * Calculate the SHA3 (a.k.a. Keccak) hash value of messageToBeHashed 95 | * @param messageToBeHashed the message to be hashed in byte array 96 | * @return 97 | */ 98 | public static byte[] getSHA3HashHex(byte[] messageToBeHashed) { 99 | Digest keccak256 = Digests.keccak256(); 100 | keccak256.reset(); 101 | keccak256.update(messageToBeHashed); 102 | return keccak256.digest(); 103 | } 104 | } 105 | -------------------------------------------------------------------------------- /src/main/java/Wallet.java: -------------------------------------------------------------------------------- 1 | import java.io.FileNotFoundException; 2 | import java.io.FileReader; 3 | import java.io.IOException; 4 | import java.math.BigInteger; 5 | 6 | import org.apache.commons.codec.DecoderException; 7 | import org.apache.commons.codec.binary.Hex; 8 | import org.ethereum.core.Transaction; 9 | import org.ethereum.crypto.ECKey; 10 | import org.json.simple.JSONObject; 11 | import org.json.simple.parser.JSONParser; 12 | import org.json.simple.parser.ParseException; 13 | 14 | /** 15 | * 16 | * @author david 17 | * This class creates a wallet with the account name. 18 | */ 19 | public class Wallet { 20 | private String accountName; 21 | private BigInteger nonce; 22 | private BigInteger etherBalance; 23 | private ECKey ecKeyPair; 24 | 25 | /** 26 | * Create a wallet with the account name 27 | * @param _accountName the account name used to retrieve the wallet. 28 | * @throws Exception 29 | */ 30 | public Wallet(String _accountName) throws Exception { 31 | this.accountName=_accountName; 32 | this.ecKeyPair=getECKeyByName(accountName); 33 | } 34 | 35 | /** 36 | * Get the nonce of the account 37 | * @param httpAgent the HTTP agent used to get the nonce from a running peer via the RPC 38 | * @return the nonce in BigInteger 39 | * @throws IOException 40 | */ 41 | private BigInteger getNonce(Http httpAgent) throws IOException{ 42 | String queryNonceString="{\"method\":\"parity_nextNonce\",\"params\":[\"0x"+Hex.encodeHexString(ecKeyPair.getAddress())+"\"],\"id\":42,\"jsonrpc\":\"2.0\"}"; 43 | String myNonceResult=""; 44 | try { 45 | myNonceResult=(String)httpAgent.getHttpResponse(queryNonceString); 46 | }catch (IOException e) { 47 | throw e; 48 | } 49 | return new BigInteger(myNonceResult.substring(2),16); 50 | } 51 | 52 | /** 53 | * Get the balance of ether on the Ethereum network. 54 | * @param httpAgent the HTTP agent used to get the Ether balance from a running peer via the RPC 55 | * @return the Ether balance in BigInteger 56 | * @throws IOException 57 | */ 58 | private BigInteger getEtherBalance(Http httpAgent) throws IOException{ 59 | String queryEtherBalanceString="{\"method\":\"eth_getBalance\",\"params\":[\"0x"+Hex.encodeHexString(ecKeyPair.getAddress())+"\"],\"id\":42,\"jsonrpc\":\"2.0\"}"; 60 | //System.out.println("The request string in getEtherBalance is "+requestString); 61 | String myEtherBalance=""; 62 | try { 63 | myEtherBalance=(String)httpAgent.getHttpResponse(queryEtherBalanceString); 64 | }catch (IOException e) { 65 | throw e; 66 | } 67 | return new BigInteger(myEtherBalance.substring(2),16); 68 | } 69 | 70 | /** 71 | * Retrieve the wallet by using the account name. 72 | * @param accountName name of the account used to get the wallet 73 | * @return the key pair of elliptic curve 74 | * @throws DecoderException 75 | * @throws FileNotFoundException 76 | * @throws ParseException 77 | * @throws IOException 78 | */ 79 | private ECKey getECKeyByName(String accountName) throws DecoderException,FileNotFoundException,ParseException,IOException{ 80 | JSONParser parser = new JSONParser(); 81 | JSONObject jobj=new JSONObject(); 82 | try { 83 | jobj = (JSONObject)parser.parse(new FileReader(accountName+".pkey")); 84 | 85 | } catch (FileNotFoundException e) { 86 | throw e; 87 | } catch (ParseException e) { 88 | throw e; 89 | } catch (IOException e) { 90 | throw e; 91 | } 92 | try{ 93 | return ECKey.fromPrivate(Hex.decodeHex(((String) jobj.get("privkey")).toCharArray())); 94 | }catch (DecoderException e) { 95 | throw e; 96 | } 97 | } 98 | 99 | /** 100 | * Update both nonce and etherBalance via RPC 101 | * @param httpAgent httpAgent the HTTP agent used to get account information from a running peer via the RPC 102 | * @throws IOException 103 | */ 104 | public void update(Http httpAgent) throws IOException{ 105 | try { 106 | nonce=getNonce(httpAgent); 107 | etherBalance=getEtherBalance(httpAgent); 108 | }catch(IOException e){ 109 | throw e; 110 | } 111 | } 112 | 113 | /** 114 | * Get the account ID in Hex with "0x" prefix. 115 | * @return the AccountID in HEX format with "0x" prefix 116 | */ 117 | public String getAccountID() { 118 | return "0x"+Hex.encodeHexString(ecKeyPair.getAddress()); 119 | } 120 | 121 | /** 122 | * Sign a message with this account's private key 123 | * @param message the message in byte array to be signed 124 | * @return the signature 125 | */ 126 | public byte[] signMessage(byte[] message) { 127 | return ecKeyPair.sign(message).toByteArray(); 128 | } 129 | 130 | /** 131 | * Sign a transaction with this account pricate key 132 | * @param trans transaction to be signed 133 | */ 134 | public void signTransaction(Transaction trans) { 135 | trans.sign(ecKeyPair); 136 | } 137 | 138 | /** 139 | * Get the nonce of this account. 140 | * @return the nonce of this account in Ethereum network. 141 | */ 142 | public BigInteger nonce() { 143 | return nonce; 144 | } 145 | 146 | /** 147 | * Get Ether balance of this account 148 | * @return the balance in Ether of this account. 149 | */ 150 | public BigInteger etherBalance() { 151 | return etherBalance; 152 | } 153 | 154 | /** 155 | * Get name of this account 156 | * @return account name of this account. 157 | */ 158 | public String accountName() { 159 | return accountName; 160 | } 161 | 162 | /** 163 | * Update nonce of this account via RPC 164 | * @param httpAgent the HTTP agent send the RPC request 165 | * @throws IOException 166 | */ 167 | public void updateNonce(Http httpAgent) throws IOException{ 168 | try { 169 | nonce=getNonce(httpAgent); 170 | }catch(IOException e){ 171 | throw e; 172 | } 173 | } 174 | 175 | /** 176 | * Update ether balance of this account via RPC 177 | * @param httpAgent the HTTP agent send the RPC request 178 | * @throws IOException 179 | */ 180 | public void updateEtherBalance(Http httpAgent) throws IOException{ 181 | try { 182 | etherBalance=getEtherBalance(httpAgent); 183 | }catch(IOException e){ 184 | throw e; 185 | } 186 | } 187 | 188 | 189 | 190 | } 191 | -------------------------------------------------------------------------------- /src/test/java/MicroRaidenTest.java: -------------------------------------------------------------------------------- 1 | /* 2 | * This Java source file was generated by the Gradle 'init' task. 3 | */ 4 | import org.junit.Test; 5 | import static org.junit.Assert.*; 6 | 7 | public class MicroRaidenTest { 8 | @Test public void test() { 9 | MicroRaiden classUnderTest = new MicroRaiden(); 10 | assert(true); 11 | } 12 | } 13 | --------------------------------------------------------------------------------