├── .gitignore ├── LICENSE ├── README.markdown ├── listeners └── FlatfileVoteListener.java ├── pom.xml └── src └── main ├── java └── com │ └── vexsoftware │ └── votifier │ ├── LogFilter.java │ ├── Votifier.java │ ├── crypto │ ├── RSA.java │ ├── RSAIO.java │ └── RSAKeygen.java │ ├── model │ ├── ListenerLoader.java │ ├── Vote.java │ ├── VoteListener.java │ ├── VotifierEvent.java │ └── listeners │ │ └── BasicVoteListener.java │ └── net │ └── VoteReceiver.java └── resources └── plugin.yml /.gitignore: -------------------------------------------------------------------------------- 1 | # Eclipse stuff 2 | /.classpath 3 | /.project 4 | /.settings 5 | /.checkstyle 6 | 7 | # netbeans 8 | /nbproject 9 | 10 | # we use maven! 11 | /build.xml 12 | 13 | # maven 14 | /target 15 | 16 | # vim 17 | .*.sw[a-p] 18 | 19 | # various other potential build files 20 | /build 21 | /bin 22 | /dist 23 | /manifest.mf 24 | 25 | /world 26 | 27 | # Mac filesystem dust 28 | *.DS_Store 29 | 30 | # intellij 31 | *.iml 32 | *.ipr 33 | *.iws 34 | .idea/ 35 | 36 | # Fern's utils 37 | uploadtoserver.sh 38 | 39 | # Testing files: 40 | debug.log 41 | 42 | # Doxygen 43 | /docs/html 44 | debug.txt 45 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 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 | . -------------------------------------------------------------------------------- /README.markdown: -------------------------------------------------------------------------------- 1 | # Votifier 2 | 3 | Votifier is a Bukkit plugin whose purpose is to be notified (aka *votified*) when a vote is made on a Minecraft server top list for the server. Votifier creates a *lightweight* server that waits for connections by Minecraft server lists and uses a simple protocol to get the required information. Votifier is *secure*, and makes sure that all vote notifications are delivered by authentic top lists. 4 | 5 | ## Configuring Votifier 6 | 7 | Votifier configures itself the first time it is run. 8 | 9 | If you want to customize Votifier, simply the edit `./plugins/votifier/config.yml` file. 10 | 11 | ## Writing Vote Listeners 12 | 13 | A vote listener implements the `VoteListener` interface which contains an implementation of the `voteMade` method. 14 | 15 | A basic vote listener looks something like this: 16 | 17 | import com.vexsoftware.votifier.model.Vote; 18 | import com.vexsoftware.votifier.model.VoteListener; 19 | 20 | public class BasicVoteListener implements VoteListener { 21 | 22 | public void voteMade(Vote vote) { 23 | System.out.println("Received: " + vote); 24 | } 25 | 26 | } 27 | 28 | ## Compiling Vote Listeners 29 | 30 | Vote listeners can be compiled by including Votifier in the class path. For example: 31 | 32 | javac -cp Votifier.jar FlatfileVoteListener.java 33 | 34 | ## Encryption 35 | 36 | Votifier uses one-way RSA encryption to ensure that only a trusted toplist can tell Votifier when a vote has been made. When it is first run, Votifier will generate a 2048 bit RSA key pair and store the keys in the `./plugins/votifier/rsa` directory. When you link Votifier with a toplist, the toplist will ask you for your Votifier public key - this is located at `./plugins/votifier/rsa/public.key` and the toplist will use this key to encrypt vote data. It is essential that you do not share these keys with your players, as a smart player can use the key to create a spoof packet and tell Votifier that they voted when they really didn't. 37 | 38 | ## Protocol Documentation 39 | 40 | This documentation is for server lists that wish to add Votifier support. 41 | 42 | A connection is made to the Votifier server by the server list, and immediately Votifier will send its version in the following packet: 43 | 44 | "VOTIFIER " 45 | 46 | Votifier then expects a 256 byte RSA encrypted block (the public key should be obtained by the Votifier user), with the following format: 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 |
TypeValue
stringVOTE
stringserviceName
stringusername
stringaddress
stringtimeStamp
byte[]empty
78 | 79 | The first string of value "VOTE" is an opcode check to ensure that RSA was encoded and decoded properly, if this value is wrong then Votifier assumes that there was a problem with encryption and drops the connection. `serviceName` is the name of the top list service, `username` is the username (entered by the voter) of the person who voted, `address` is the IP address of the voter, and `timeStamp` is the time stamp of the vote. Each string is delimited by the newline character `\n` (byte value 10). The `space` block is the empty space that is left over, **the block must be exactly 256 bytes** regardless of how much information it holds. -------------------------------------------------------------------------------- /listeners/FlatfileVoteListener.java: -------------------------------------------------------------------------------- 1 | import java.io.BufferedWriter; 2 | import java.io.FileWriter; 3 | import java.util.logging.Level; 4 | import java.util.logging.Logger; 5 | 6 | import com.vexsoftware.votifier.model.Vote; 7 | import com.vexsoftware.votifier.model.VoteListener; 8 | 9 | /** 10 | * A vote listener that logs to a file. 11 | * 12 | * @author Blake Beaupain 13 | */ 14 | public class FlatfileVoteListener implements VoteListener { 15 | 16 | /** The log file. */ 17 | public static final String FILE = "./plugins/Votifier/votes.log"; 18 | 19 | /** The logger instance. */ 20 | private static final Logger log = Logger.getLogger("FlatfileVoteListener"); 21 | 22 | @Override 23 | public void voteMade(Vote vote) { 24 | try { 25 | // Open a buffered writer in append mode. 26 | BufferedWriter writer = new BufferedWriter(new FileWriter(FILE, true)); 27 | 28 | // Append the vote to the file. 29 | writer.write(vote.toString()); 30 | writer.newLine(); 31 | writer.flush(); 32 | 33 | // All done. 34 | writer.close(); 35 | } catch (Exception ex) { 36 | log.log(Level.WARNING, "Unable to log vote: " + vote); 37 | } 38 | } 39 | 40 | } 41 | -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | com.vexsoftware 5 | votifier 6 | 1.9 7 | Votifier 8 | 9 | UTF-8 10 | 11 | 12 | 13 | 14 | bukkit 15 | http://repo.bukkit.org/content/groups/public/ 16 | 17 | 18 | 19 | 20 | 21 | 22 | org.bukkit 23 | bukkit 24 | 1.7.9-R0.2 25 | jar 26 | compile 27 | 28 | 29 | 30 | 31 | clean package 32 | 33 | 34 | 35 | org.apache.maven.plugins 36 | maven-compiler-plugin 37 | 2.3.2 38 | 39 | 1.7 40 | 1.7 41 | 42 | 43 | 44 | 45 | org.apache.maven.plugins 46 | maven-jar-plugin 47 | 2.3.1 48 | 49 | 50 | com.google.code.maven-replacer-plugin 51 | maven-replacer-plugin 52 | 1.3.8 53 | 54 | 55 | prepare-package 56 | 57 | replace 58 | 59 | 60 | 61 | 62 | target/classes/plugin.yml 63 | 64 | 65 | maven-version-number 66 | ${project.version} 67 | 68 | 69 | 70 | 71 | 72 | org.apache.maven.plugins 73 | maven-javadoc-plugin 74 | 2.9 75 | 76 | 77 | 78 | 79 | -------------------------------------------------------------------------------- /src/main/java/com/vexsoftware/votifier/LogFilter.java: -------------------------------------------------------------------------------- 1 | package com.vexsoftware.votifier; 2 | 3 | import java.util.logging.*; 4 | 5 | /** 6 | * A custom log filter for prepending plugin identifier on all log messages. 7 | * 8 | * @author frelling 9 | * 10 | */ 11 | class LogFilter implements Filter { 12 | 13 | private String prefix; 14 | 15 | /** 16 | * Constructs a log filter that prepends the given prefix on all log 17 | * messages. 18 | * 19 | * @param prefix 20 | */ 21 | public LogFilter(String prefix) { 22 | this.prefix = prefix; 23 | } 24 | 25 | /** 26 | * Always returns true, but adds prefix to log message. 27 | */ 28 | public boolean isLoggable(LogRecord record) { 29 | record.setMessage(prefix + record.getMessage()); 30 | return true; 31 | } 32 | } 33 | -------------------------------------------------------------------------------- /src/main/java/com/vexsoftware/votifier/Votifier.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2012 Vex Software LLC 3 | * This file is part of Votifier. 4 | * 5 | * Votifier is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * Votifier is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with Votifier. If not, see . 17 | */ 18 | 19 | package com.vexsoftware.votifier; 20 | 21 | import java.io.*; 22 | import java.security.KeyPair; 23 | import java.util.ArrayList; 24 | import java.util.List; 25 | import java.util.logging.*; 26 | import org.bukkit.Bukkit; 27 | import org.bukkit.configuration.file.YamlConfiguration; 28 | import org.bukkit.plugin.java.JavaPlugin; 29 | import com.vexsoftware.votifier.crypto.RSAIO; 30 | import com.vexsoftware.votifier.crypto.RSAKeygen; 31 | import com.vexsoftware.votifier.model.ListenerLoader; 32 | import com.vexsoftware.votifier.model.VoteListener; 33 | import com.vexsoftware.votifier.net.VoteReceiver; 34 | 35 | /** 36 | * The main Votifier plugin class. 37 | * 38 | * @author Blake Beaupain 39 | * @author Kramer Campbell 40 | */ 41 | public class Votifier extends JavaPlugin { 42 | 43 | /** The logger instance. */ 44 | private static final Logger LOG = Logger.getLogger("Votifier"); 45 | 46 | /** Log entry prefix */ 47 | private static final String logPrefix = "[Votifier] "; 48 | 49 | /** The Votifier instance. */ 50 | private static Votifier instance; 51 | 52 | /** The current Votifier version. */ 53 | private String version; 54 | 55 | /** The vote listeners. */ 56 | private final List listeners = new ArrayList(); 57 | 58 | /** The vote receiver. */ 59 | private VoteReceiver voteReceiver; 60 | 61 | /** The RSA key pair. */ 62 | private KeyPair keyPair; 63 | 64 | /** Debug mode flag */ 65 | private boolean debug; 66 | 67 | /** 68 | * Attach custom log filter to logger. 69 | */ 70 | static { 71 | LOG.setFilter(new LogFilter(logPrefix)); 72 | } 73 | 74 | @Override 75 | public void onEnable() { 76 | Votifier.instance = this; 77 | 78 | // Set the plugin version. 79 | version = getDescription().getVersion(); 80 | 81 | // Handle configuration. 82 | if (!getDataFolder().exists()) { 83 | getDataFolder().mkdir(); 84 | } 85 | File config = new File(getDataFolder() + "/config.yml"); 86 | YamlConfiguration cfg = YamlConfiguration.loadConfiguration(config); 87 | File rsaDirectory = new File(getDataFolder() + "/rsa"); 88 | // Replace to remove a bug with Windows paths - SmilingDevil 89 | String listenerDirectory = getDataFolder().toString() 90 | .replace("\\", "/") + "/listeners"; 91 | 92 | /* 93 | * Use IP address from server.properties as a default for 94 | * configurations. Do not use InetAddress.getLocalHost() as it most 95 | * likely will return the main server address instead of the address 96 | * assigned to the server. 97 | */ 98 | String hostAddr = Bukkit.getServer().getIp(); 99 | if (hostAddr == null || hostAddr.length() == 0) 100 | hostAddr = "0.0.0.0"; 101 | 102 | /* 103 | * Create configuration file if it does not exists; otherwise, load it 104 | */ 105 | if (!config.exists()) { 106 | try { 107 | // First time run - do some initialization. 108 | LOG.info("Configuring Votifier for the first time..."); 109 | 110 | // Initialize the configuration file. 111 | config.createNewFile(); 112 | 113 | cfg.set("host", hostAddr); 114 | cfg.set("port", 8192); 115 | cfg.set("debug", false); 116 | 117 | /* 118 | * Remind hosted server admins to be sure they have the right 119 | * port number. 120 | */ 121 | LOG.info("------------------------------------------------------------------------------"); 122 | LOG.info("Assigning Votifier to listen on port 8192. If you are hosting Craftbukkit on a"); 123 | LOG.info("shared server please check with your hosting provider to verify that this port"); 124 | LOG.info("is available for your use. Chances are that your hosting provider will assign"); 125 | LOG.info("a different port, which you need to specify in config.yml"); 126 | LOG.info("------------------------------------------------------------------------------"); 127 | 128 | cfg.set("listener_folder", listenerDirectory); 129 | cfg.save(config); 130 | } catch (Exception ex) { 131 | LOG.log(Level.SEVERE, "Error creating configuration file", ex); 132 | gracefulExit(); 133 | return; 134 | } 135 | } else { 136 | // Load configuration. 137 | cfg = YamlConfiguration.loadConfiguration(config); 138 | } 139 | 140 | /* 141 | * Create RSA directory and keys if it does not exist; otherwise, read 142 | * keys. 143 | */ 144 | try { 145 | if (!rsaDirectory.exists()) { 146 | rsaDirectory.mkdir(); 147 | new File(listenerDirectory).mkdir(); 148 | keyPair = RSAKeygen.generate(2048); 149 | RSAIO.save(rsaDirectory, keyPair); 150 | } else { 151 | keyPair = RSAIO.load(rsaDirectory); 152 | } 153 | } catch (Exception ex) { 154 | LOG.log(Level.SEVERE, 155 | "Error reading configuration file or RSA keys", ex); 156 | gracefulExit(); 157 | return; 158 | } 159 | 160 | // Load the vote listeners. 161 | listenerDirectory = cfg.getString("listener_folder"); 162 | listeners.addAll(ListenerLoader.load(listenerDirectory)); 163 | 164 | // Initialize the receiver. 165 | String host = cfg.getString("host", hostAddr); 166 | int port = cfg.getInt("port", 8192); 167 | debug = cfg.getBoolean("debug", false); 168 | if (debug) 169 | LOG.info("DEBUG mode enabled!"); 170 | 171 | try { 172 | voteReceiver = new VoteReceiver(this, host, port); 173 | voteReceiver.start(); 174 | 175 | LOG.info("Votifier enabled."); 176 | } catch (Exception ex) { 177 | gracefulExit(); 178 | return; 179 | } 180 | } 181 | 182 | @Override 183 | public void onDisable() { 184 | // Interrupt the vote receiver. 185 | if (voteReceiver != null) { 186 | voteReceiver.shutdown(); 187 | } 188 | LOG.info("Votifier disabled."); 189 | } 190 | 191 | private void gracefulExit() { 192 | LOG.log(Level.SEVERE, "Votifier did not initialize properly!"); 193 | } 194 | 195 | /** 196 | * Gets the instance. 197 | * 198 | * @return The instance 199 | */ 200 | public static Votifier getInstance() { 201 | return instance; 202 | } 203 | 204 | /** 205 | * Gets the version. 206 | * 207 | * @return The version 208 | */ 209 | public String getVersion() { 210 | return version; 211 | } 212 | 213 | /** 214 | * Gets the listeners. 215 | * 216 | * @return The listeners 217 | */ 218 | public List getListeners() { 219 | return listeners; 220 | } 221 | 222 | /** 223 | * Gets the vote receiver. 224 | * 225 | * @return The vote receiver 226 | */ 227 | public VoteReceiver getVoteReceiver() { 228 | return voteReceiver; 229 | } 230 | 231 | /** 232 | * Gets the keyPair. 233 | * 234 | * @return The keyPair 235 | */ 236 | public KeyPair getKeyPair() { 237 | return keyPair; 238 | } 239 | 240 | public boolean isDebug() { 241 | return debug; 242 | } 243 | 244 | } 245 | -------------------------------------------------------------------------------- /src/main/java/com/vexsoftware/votifier/crypto/RSA.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2011 Vex Software LLC 3 | * This file is part of Votifier. 4 | * 5 | * Votifier is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * Votifier is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with Votifier. If not, see . 17 | */ 18 | 19 | package com.vexsoftware.votifier.crypto; 20 | 21 | import java.security.PrivateKey; 22 | import java.security.PublicKey; 23 | 24 | import javax.crypto.Cipher; 25 | 26 | /** 27 | * Static RSA utility methods for encrypting and decrypting blocks of 28 | * information. 29 | * 30 | * @author Blake Beaupain 31 | */ 32 | public class RSA { 33 | 34 | /** 35 | * Encrypts a block of data. 36 | * 37 | * @param data 38 | * The data to encrypt 39 | * @param key 40 | * The key to encrypt with 41 | * @return The encrypted data 42 | * @throws Exception 43 | * If an error occurs 44 | */ 45 | public static byte[] encrypt(byte[] data, PublicKey key) throws Exception { 46 | Cipher cipher = Cipher.getInstance("RSA"); 47 | cipher.init(Cipher.ENCRYPT_MODE, key); 48 | return cipher.doFinal(data); 49 | } 50 | 51 | /** 52 | * Decrypts a block of data. 53 | * 54 | * @param data 55 | * The data to decrypt 56 | * @param key 57 | * The key to decrypt with 58 | * @return The decrypted data 59 | * @throws Exception 60 | * If an error occurs 61 | */ 62 | public static byte[] decrypt(byte[] data, PrivateKey key) throws Exception { 63 | Cipher cipher = Cipher.getInstance("RSA"); 64 | cipher.init(Cipher.DECRYPT_MODE, key); 65 | return cipher.doFinal(data); 66 | } 67 | 68 | } 69 | -------------------------------------------------------------------------------- /src/main/java/com/vexsoftware/votifier/crypto/RSAIO.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2011 Vex Software LLC 3 | * This file is part of Votifier. 4 | * 5 | * Votifier is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * Votifier is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with Votifier. If not, see . 17 | */ 18 | 19 | package com.vexsoftware.votifier.crypto; 20 | 21 | import java.io.File; 22 | import java.io.FileInputStream; 23 | import java.io.FileOutputStream; 24 | import java.security.KeyFactory; 25 | import java.security.KeyPair; 26 | import java.security.PrivateKey; 27 | import java.security.PublicKey; 28 | import java.security.spec.PKCS8EncodedKeySpec; 29 | import java.security.spec.X509EncodedKeySpec; 30 | 31 | import javax.xml.bind.DatatypeConverter; 32 | 33 | /** 34 | * Static utility methods for saving and loading RSA key pairs. 35 | * 36 | * @author Blake Beaupain 37 | */ 38 | public class RSAIO { 39 | 40 | /** 41 | * Saves the key pair to the disk. 42 | * 43 | * @param directory 44 | * The directory to save to 45 | * @param keyPair 46 | * The key pair to save 47 | * @throws Exception 48 | * If an error occurs 49 | */ 50 | public static void save(File directory, KeyPair keyPair) throws Exception { 51 | PrivateKey privateKey = keyPair.getPrivate(); 52 | PublicKey publicKey = keyPair.getPublic(); 53 | 54 | // Store the public key. 55 | X509EncodedKeySpec publicSpec = new X509EncodedKeySpec( 56 | publicKey.getEncoded()); 57 | FileOutputStream out = new FileOutputStream(directory + "/public.key"); 58 | out.write(DatatypeConverter.printBase64Binary(publicSpec.getEncoded()) 59 | .getBytes()); 60 | out.close(); 61 | 62 | // Store the private key. 63 | PKCS8EncodedKeySpec privateSpec = new PKCS8EncodedKeySpec( 64 | privateKey.getEncoded()); 65 | out = new FileOutputStream(directory + "/private.key"); 66 | out.write(DatatypeConverter.printBase64Binary(privateSpec.getEncoded()) 67 | .getBytes()); 68 | out.close(); 69 | } 70 | 71 | /** 72 | * Loads an RSA key pair from a directory. The directory must have the files 73 | * "public.key" and "private.key". 74 | * 75 | * @param directory 76 | * The directory to load from 77 | * @return The key pair 78 | * @throws Exception 79 | * If an error occurs 80 | */ 81 | public static KeyPair load(File directory) throws Exception { 82 | // Read the public key file. 83 | File publicKeyFile = new File(directory + "/public.key"); 84 | FileInputStream in = new FileInputStream(directory + "/public.key"); 85 | byte[] encodedPublicKey = new byte[(int) publicKeyFile.length()]; 86 | in.read(encodedPublicKey); 87 | encodedPublicKey = DatatypeConverter.parseBase64Binary(new String( 88 | encodedPublicKey)); 89 | in.close(); 90 | 91 | // Read the private key file. 92 | File privateKeyFile = new File(directory + "/private.key"); 93 | in = new FileInputStream(directory + "/private.key"); 94 | byte[] encodedPrivateKey = new byte[(int) privateKeyFile.length()]; 95 | in.read(encodedPrivateKey); 96 | encodedPrivateKey = DatatypeConverter.parseBase64Binary(new String( 97 | encodedPrivateKey)); 98 | in.close(); 99 | 100 | // Instantiate and return the key pair. 101 | KeyFactory keyFactory = KeyFactory.getInstance("RSA"); 102 | X509EncodedKeySpec publicKeySpec = new X509EncodedKeySpec( 103 | encodedPublicKey); 104 | PublicKey publicKey = keyFactory.generatePublic(publicKeySpec); 105 | PKCS8EncodedKeySpec privateKeySpec = new PKCS8EncodedKeySpec( 106 | encodedPrivateKey); 107 | PrivateKey privateKey = keyFactory.generatePrivate(privateKeySpec); 108 | return new KeyPair(publicKey, privateKey); 109 | } 110 | 111 | } 112 | -------------------------------------------------------------------------------- /src/main/java/com/vexsoftware/votifier/crypto/RSAKeygen.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2011 Vex Software LLC 3 | * This file is part of Votifier. 4 | * 5 | * Votifier is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * Votifier is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with Votifier. If not, see . 17 | */ 18 | 19 | package com.vexsoftware.votifier.crypto; 20 | 21 | import java.security.KeyPair; 22 | import java.security.KeyPairGenerator; 23 | import java.security.spec.RSAKeyGenParameterSpec; 24 | import java.util.logging.Logger; 25 | 26 | /** 27 | * An RSA key pair generator. 28 | * 29 | * @author Blake Beaupain 30 | */ 31 | public class RSAKeygen { 32 | 33 | /** The logger instance. */ 34 | private static final Logger LOG = Logger.getLogger("Votifier"); 35 | 36 | /** 37 | * Generates an RSA key pair. 38 | * 39 | * @param bits 40 | * The amount of bits 41 | * @return The key pair 42 | */ 43 | public static KeyPair generate(int bits) throws Exception { 44 | LOG.info("Votifier is generating an RSA key pair..."); 45 | KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA"); 46 | RSAKeyGenParameterSpec spec = new RSAKeyGenParameterSpec(bits, 47 | RSAKeyGenParameterSpec.F4); 48 | keygen.initialize(spec); 49 | return keygen.generateKeyPair(); 50 | } 51 | 52 | } 53 | -------------------------------------------------------------------------------- /src/main/java/com/vexsoftware/votifier/model/ListenerLoader.java: -------------------------------------------------------------------------------- 1 | package com.vexsoftware.votifier.model; 2 | 3 | import java.io.File; 4 | import java.net.*; 5 | import java.util.*; 6 | import java.util.logging.*; 7 | import com.vexsoftware.votifier.Votifier; 8 | 9 | /** 10 | * Loads vote listeners. Listeners that cannot be instantiated will be skipped. 11 | * 12 | * @author Blake Beaupain 13 | */ 14 | public class ListenerLoader { 15 | 16 | /** The logger instance. */ 17 | private static final Logger LOG = Logger.getLogger("Votifier"); 18 | 19 | /** 20 | * Loads all listener class files from a directory. 21 | * 22 | * @param directory 23 | * The directory 24 | */ 25 | public static List load(String directory) /* throws Exception */{ 26 | List listeners = new ArrayList(); 27 | File dir = new File(directory); 28 | 29 | // Verify configured vote listener directory exists 30 | if (!dir.exists()) { 31 | LOG.log(Level.WARNING, 32 | "No listeners loaded! Cannot find listener directory '" 33 | + dir + "' "); 34 | return listeners; 35 | } 36 | 37 | // Load the vote listener instances. 38 | ClassLoader loader; 39 | try { 40 | loader = new URLClassLoader(new URL[] { dir.toURI().toURL() }, 41 | VoteListener.class.getClassLoader()); 42 | } catch (MalformedURLException ex) { 43 | LOG.log(Level.SEVERE, 44 | "Error while configuring listener class loader", ex); 45 | return listeners; 46 | } 47 | for (File file : dir.listFiles()) { 48 | if (!file.getName().endsWith(".class")) { 49 | continue; // Only load class files! 50 | } 51 | String name = file.getName().substring(0, 52 | file.getName().lastIndexOf(".")); 53 | 54 | try { 55 | Class clazz = loader.loadClass(name); 56 | Object object = clazz.newInstance(); 57 | if (!(object instanceof VoteListener)) { 58 | LOG.info("Not a vote listener: " + clazz.getSimpleName()); 59 | continue; 60 | } 61 | VoteListener listener = (VoteListener) object; 62 | listeners.add(listener); 63 | LOG.info("Loaded vote listener: " 64 | + listener.getClass().getSimpleName()); 65 | } 66 | /* 67 | * Catch the usual definition and dependency problems with a loader 68 | * and skip the problem listener. 69 | */ 70 | catch (Exception ex) { 71 | LOG.log(Level.WARNING, "Error loading '" + name 72 | + "' listener! Listener disabled."); 73 | } catch (Error ex) { 74 | LOG.log(Level.WARNING, "Error loading '" + name 75 | + "' listener! Listener disabled."); 76 | } 77 | } 78 | return listeners; 79 | } 80 | } 81 | -------------------------------------------------------------------------------- /src/main/java/com/vexsoftware/votifier/model/Vote.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2011 Vex Software LLC 3 | * This file is part of Votifier. 4 | * 5 | * Votifier is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * Votifier is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with Votifier. If not, see . 17 | */ 18 | 19 | package com.vexsoftware.votifier.model; 20 | 21 | /** 22 | * A model for a vote. 23 | * 24 | * @author Blake Beaupain 25 | */ 26 | public class Vote { 27 | 28 | /** The name of the vote service. */ 29 | private String serviceName; 30 | 31 | /** The username of the voter. */ 32 | private String username; 33 | 34 | /** The address of the voter. */ 35 | private String address; 36 | 37 | /** The date and time of the vote. */ 38 | private String timeStamp; 39 | 40 | @Override 41 | public String toString() { 42 | return "Vote (from:" + serviceName + " username:" + username 43 | + " address:" + address + " timeStamp:" + timeStamp + ")"; 44 | } 45 | 46 | /** 47 | * Sets the serviceName. 48 | * 49 | * @param serviceName 50 | * The new serviceName 51 | */ 52 | public void setServiceName(String serviceName) { 53 | this.serviceName = serviceName; 54 | } 55 | 56 | /** 57 | * Gets the serviceName. 58 | * 59 | * @return The serviceName 60 | */ 61 | public String getServiceName() { 62 | return serviceName; 63 | } 64 | 65 | /** 66 | * Sets the username. 67 | * 68 | * @param username 69 | * The new username 70 | */ 71 | public void setUsername(String username) { 72 | this.username = username.length() <= 16 ? username : username.substring(0, 16); 73 | } 74 | 75 | /** 76 | * Gets the username. 77 | * 78 | * @return The username 79 | */ 80 | public String getUsername() { 81 | return username; 82 | } 83 | 84 | /** 85 | * Sets the address. 86 | * 87 | * @param address 88 | * The new address 89 | */ 90 | public void setAddress(String address) { 91 | this.address = address; 92 | } 93 | 94 | /** 95 | * Gets the address. 96 | * 97 | * @return The address 98 | */ 99 | public String getAddress() { 100 | return address; 101 | } 102 | 103 | /** 104 | * Sets the time stamp. 105 | * 106 | * @param timeStamp 107 | * The new time stamp 108 | */ 109 | public void setTimeStamp(String timeStamp) { 110 | this.timeStamp = timeStamp; 111 | } 112 | 113 | /** 114 | * Gets the time stamp. 115 | * 116 | * @return The time stamp 117 | */ 118 | public String getTimeStamp() { 119 | return timeStamp; 120 | } 121 | 122 | } 123 | -------------------------------------------------------------------------------- /src/main/java/com/vexsoftware/votifier/model/VoteListener.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2011 Vex Software LLC 3 | * This file is part of Votifier. 4 | * 5 | * Votifier is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * Votifier is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with Votifier. If not, see . 17 | */ 18 | 19 | package com.vexsoftware.votifier.model; 20 | 21 | /** 22 | * A listener for votes. 23 | * 24 | * @author Blake Beaupain 25 | */ 26 | public interface VoteListener { 27 | 28 | /** 29 | * Called when a vote is made. 30 | * 31 | * @param vote 32 | * The vote that was made 33 | */ 34 | public void voteMade(Vote vote); 35 | 36 | } 37 | -------------------------------------------------------------------------------- /src/main/java/com/vexsoftware/votifier/model/VotifierEvent.java: -------------------------------------------------------------------------------- 1 | package com.vexsoftware.votifier.model; 2 | 3 | import org.bukkit.event.*; 4 | 5 | /** 6 | * {@code VotifierEvent} is a custom Bukkit event class that is sent 7 | * synchronously to CraftBukkit's main thread allowing other plugins to listener 8 | * for votes. 9 | * 10 | * @author frelling 11 | * 12 | */ 13 | public class VotifierEvent extends Event { 14 | /** 15 | * Event listener handler list. 16 | */ 17 | private static final HandlerList handlers = new HandlerList(); 18 | 19 | /** 20 | * Encapsulated vote record. 21 | */ 22 | private Vote vote; 23 | 24 | /** 25 | * Constructs a vote event that encapsulated the given vote record. 26 | * 27 | * @param vote 28 | * vote record 29 | */ 30 | public VotifierEvent(final Vote vote) { 31 | this.vote = vote; 32 | } 33 | 34 | /** 35 | * Return the encapsulated vote record. 36 | * 37 | * @return vote record 38 | */ 39 | public Vote getVote() { 40 | return vote; 41 | } 42 | 43 | @Override 44 | public HandlerList getHandlers() { 45 | return handlers; 46 | } 47 | 48 | public static HandlerList getHandlerList() { 49 | return handlers; 50 | } 51 | } 52 | -------------------------------------------------------------------------------- /src/main/java/com/vexsoftware/votifier/model/listeners/BasicVoteListener.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2011 Vex Software LLC 3 | * This file is part of Votifier. 4 | * 5 | * Votifier is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * Votifier is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with Votifier. If not, see . 17 | */ 18 | 19 | package com.vexsoftware.votifier.model.listeners; 20 | 21 | import java.util.logging.Logger; 22 | 23 | import com.vexsoftware.votifier.model.Vote; 24 | import com.vexsoftware.votifier.model.VoteListener; 25 | 26 | /** 27 | * A basic vote listener for demonstration purposes. 28 | * 29 | * @author Blake Beaupain 30 | */ 31 | public class BasicVoteListener implements VoteListener { 32 | 33 | /** The logger instance. */ 34 | private Logger log = Logger.getLogger("BasicVoteListener"); 35 | 36 | public void voteMade(Vote vote) { 37 | log.info("Received: " + vote); 38 | } 39 | 40 | } 41 | -------------------------------------------------------------------------------- /src/main/java/com/vexsoftware/votifier/net/VoteReceiver.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2012 Vex Software LLC 3 | * This file is part of Votifier. 4 | * 5 | * Votifier is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * Votifier is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with Votifier. If not, see . 17 | */ 18 | 19 | package com.vexsoftware.votifier.net; 20 | 21 | import java.io.BufferedWriter; 22 | import java.io.InputStream; 23 | import java.io.OutputStreamWriter; 24 | import java.net.InetSocketAddress; 25 | import java.net.ServerSocket; 26 | import java.net.Socket; 27 | import java.net.SocketException; 28 | import java.util.logging.*; 29 | import javax.crypto.BadPaddingException; 30 | import org.bukkit.Bukkit; 31 | 32 | import com.vexsoftware.votifier.Votifier; 33 | import com.vexsoftware.votifier.crypto.RSA; 34 | import com.vexsoftware.votifier.model.*; 35 | 36 | /** 37 | * The vote receiving server. 38 | * 39 | * @author Blake Beaupain 40 | * @author Kramer Campbell 41 | */ 42 | public class VoteReceiver extends Thread { 43 | 44 | /** The logger instance. */ 45 | private static final Logger LOG = Logger.getLogger("Votifier"); 46 | 47 | private final Votifier plugin; 48 | 49 | /** The host to listen on. */ 50 | private final String host; 51 | 52 | /** The port to listen on. */ 53 | private final int port; 54 | 55 | /** The server socket. */ 56 | private ServerSocket server; 57 | 58 | /** The running flag. */ 59 | private boolean running = true; 60 | 61 | /** 62 | * Instantiates a new vote receiver. 63 | * 64 | * @param host 65 | * The host to listen on 66 | * @param port 67 | * The port to listen on 68 | */ 69 | public VoteReceiver(final Votifier plugin, String host, int port) 70 | throws Exception { 71 | this.plugin = plugin; 72 | this.host = host; 73 | this.port = port; 74 | 75 | initialize(); 76 | } 77 | 78 | private void initialize() throws Exception { 79 | try { 80 | server = new ServerSocket(); 81 | server.bind(new InetSocketAddress(host, port)); 82 | } catch (Exception ex) { 83 | LOG.log(Level.SEVERE, 84 | "Error initializing vote receiver. Please verify that the configured"); 85 | LOG.log(Level.SEVERE, 86 | "IP address and port are not already in use. This is a common problem"); 87 | LOG.log(Level.SEVERE, 88 | "with hosting services and, if so, you should check with your hosting provider.", 89 | ex); 90 | throw new Exception(ex); 91 | } 92 | } 93 | 94 | /** 95 | * Shuts the vote receiver down cleanly. 96 | */ 97 | public void shutdown() { 98 | running = false; 99 | if (server == null) 100 | return; 101 | try { 102 | server.close(); 103 | } catch (Exception ex) { 104 | LOG.log(Level.WARNING, "Unable to shut down vote receiver cleanly."); 105 | } 106 | } 107 | 108 | @Override 109 | public void run() { 110 | 111 | // Main loop. 112 | while (running) { 113 | try { 114 | Socket socket = server.accept(); 115 | socket.setSoTimeout(5000); // Don't hang on slow connections. 116 | BufferedWriter writer = new BufferedWriter( 117 | new OutputStreamWriter(socket.getOutputStream())); 118 | InputStream in = socket.getInputStream(); 119 | 120 | // Send them our version. 121 | writer.write("VOTIFIER " + Votifier.getInstance().getVersion()); 122 | writer.newLine(); 123 | writer.flush(); 124 | 125 | // Read the 256 byte block. 126 | byte[] block = new byte[256]; 127 | in.read(block, 0, block.length); 128 | 129 | // Decrypt the block. 130 | block = RSA.decrypt(block, Votifier.getInstance().getKeyPair() 131 | .getPrivate()); 132 | int position = 0; 133 | 134 | // Perform the opcode check. 135 | String opcode = readString(block, position); 136 | position += opcode.length() + 1; 137 | if (!opcode.equals("VOTE")) { 138 | // Something went wrong in RSA. 139 | throw new Exception("Unable to decode RSA"); 140 | } 141 | 142 | // Parse the block. 143 | String serviceName = readString(block, position); 144 | position += serviceName.length() + 1; 145 | String username = readString(block, position); 146 | position += username.length() + 1; 147 | String address = readString(block, position); 148 | position += address.length() + 1; 149 | String timeStamp = readString(block, position); 150 | position += timeStamp.length() + 1; 151 | 152 | // Create the vote. 153 | final Vote vote = new Vote(); 154 | vote.setServiceName(serviceName); 155 | vote.setUsername(username); 156 | vote.setAddress(address); 157 | vote.setTimeStamp(timeStamp); 158 | 159 | if (plugin.isDebug()) 160 | LOG.info("Received vote record -> " + vote); 161 | 162 | // Dispatch the vote to all listeners. 163 | for (VoteListener listener : Votifier.getInstance() 164 | .getListeners()) { 165 | try { 166 | listener.voteMade(vote); 167 | } catch (Exception ex) { 168 | String vlName = listener.getClass().getSimpleName(); 169 | LOG.log(Level.WARNING, 170 | "Exception caught while sending the vote notification to the '" 171 | + vlName + "' listener", ex); 172 | } 173 | } 174 | 175 | // Call event in a synchronized fashion to ensure that the 176 | // custom event runs in the 177 | // the main server thread, not this one. 178 | plugin.getServer().getScheduler() 179 | .scheduleSyncDelayedTask(plugin, new Runnable() { 180 | public void run() { 181 | Bukkit.getServer().getPluginManager() 182 | .callEvent(new VotifierEvent(vote)); 183 | } 184 | }); 185 | 186 | // Clean up. 187 | writer.close(); 188 | in.close(); 189 | socket.close(); 190 | } catch (SocketException ex) { 191 | LOG.log(Level.WARNING, "Protocol error. Ignoring packet - " 192 | + ex.getLocalizedMessage()); 193 | } catch (BadPaddingException ex) { 194 | LOG.log(Level.WARNING, 195 | "Unable to decrypt vote record. Make sure that that your public key"); 196 | LOG.log(Level.WARNING, 197 | "matches the one you gave the server list.", ex); 198 | } catch (Exception ex) { 199 | LOG.log(Level.WARNING, 200 | "Exception caught while receiving a vote notification", 201 | ex); 202 | } 203 | } 204 | } 205 | 206 | /** 207 | * Reads a string from a block of data. 208 | * 209 | * @param data 210 | * The data to read from 211 | * @return The string 212 | */ 213 | private String readString(byte[] data, int offset) { 214 | StringBuilder builder = new StringBuilder(); 215 | for (int i = offset; i < data.length; i++) { 216 | if (data[i] == '\n') 217 | break; // Delimiter reached. 218 | builder.append((char) data[i]); 219 | } 220 | return builder.toString(); 221 | } 222 | } 223 | -------------------------------------------------------------------------------- /src/main/resources/plugin.yml: -------------------------------------------------------------------------------- 1 | name: Votifier 2 | main: com.vexsoftware.votifier.Votifier 3 | version: maven-version-number 4 | description: A plugin that gets notified when votes are made for the server on toplists. 5 | authors: [blakeman8192, Kramer] --------------------------------------------------------------------------------