Version bump

Fixed #6 once more
Added exit command alias

.travis.yml

@@ -0,0 +1,4 @@
+sudo: false
+language: java
+jdk:
+  - oraclejdk8

README.md

@@ -1,4 +1,6 @@
 Bukkit-SSHD
 ===========
 
+[![Build Status](https://travis-ci.org/rmichela/Bukkit-SSHD.png)](https://travis-ci.org/rmichela/Bukkit-SSHD)
+
 An SSHD daemon embedded in a Bukkit plugin.

pom.xml

@@ -6,14 +6,14 @@
 
     <groupId>com.ryanmichela</groupId>
     <artifactId>SSHD</artifactId>
-    <version>1.0</version>
+    <version>1.3.4.1</version>
     <url>http://dev.bukkit.org/server-mods/sshd/</url>
 
     <!-- Repositories -->
     <repositories>
         <repository>
-            <id>bukkit-repo</id>
-            <url>http://repo.bukkit.org/content/groups/public/</url>
+            <id>spigot-repo</id>
+            <url>https://hub.spigotmc.org/nexus/content/groups/public</url>
         </repository>
     </repositories>
 
@@ -29,62 +29,107 @@
     <dependencies>
         <dependency>
             <groupId>org.bukkit</groupId>
-            <artifactId>craftbukkit</artifactId>
-            <version>1.6.4-R1.0</version>
-            <scope>provided</scope>
-            <type>jar</type>
+            <artifactId>bukkit</artifactId>
+            <version>1.12.2-R0.1-SNAPSHOT</version>
         </dependency>
+
         <dependency>
             <groupId>org.apache.sshd</groupId>
             <artifactId>sshd-core</artifactId>
-            <version>0.9.0</version>
+            <version>1.6.0</version>
             <scope>compile</scope>
             <type>jar</type>
         </dependency>
-        <!--<dependency>-->
-            <!--<groupId>org.bouncycastle</groupId>-->
-            <!--<artifactId>bcprov-jdk16</artifactId>-->
-            <!--<version>1.46</version>-->
-        <!--</dependency>-->
+        
+        <dependency>
+            <groupId>org.apache.mina</groupId>
+            <artifactId>mina-core</artifactId>
+            <version>2.0.16</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>1.7.25</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-jdk14</artifactId>
+            <version>1.7.25</version>
+        </dependency>
+
+        <dependency>
+            <groupId>jline</groupId>
+            <artifactId>jline</artifactId>
+            <version>2.12.1</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <version>2.0</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <version>2.1</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>commons-codec</groupId>
+            <artifactId>commons-codec</artifactId>
+            <version>1.10</version>
+            <scope>provided</scope>
+        </dependency>
             </dependencies>
 
     <!-- Build -->
     <build>
+        <resources>
+            <resource>
+                <targetPath>.</targetPath>
+                <filtering>true</filtering>
+                <directory>${basedir}/src/main/resources</directory>
+                <includes>
+                    <include>plugin.yml</include>
+                    <include>config.yml</include>
+                </includes>
+            </resource>
+        </resources>
+
         <plugins>
-            <!-- Shade plugin -->
             <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-shade-plugin</artifactId>
-                <version>1.5</version>
+                <artifactId>maven-assembly-plugin</artifactId>
+                <version>3.1.0</version>
                 <executions>
                     <execution>
                         <phase>package</phase>
                         <goals>
-                            <goal>shade</goal>
+                            <goal>single</goal>
                         </goals>
                     </execution>
                 </executions>
                 <configuration>
-                    <filters>
-                        <filter>
-                            <artifact>*:*</artifact>
-                            <excludes>
-                                <exclude>META-INF/*.SF</exclude>
-                                <exclude>META-INF/*.DSA</exclude>
-                                <exclude>META-INF/*.RSA</exclude>
-                            </excludes>
-                        </filter>
-                    </filters>
+                    <finalName>${project.name}-${project.version}</finalName>
+                    <appendAssemblyId>false</appendAssemblyId>
+                    <descriptorRefs>
+                        <descriptorRef>jar-with-dependencies</descriptorRef>
+                    </descriptorRefs>
                 </configuration>
             </plugin>
+            
             <!-- Compile plugin -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.0</version>
+                <version>3.5.1</version>
                 <configuration>
-                    <source>1.7</source>
-                    <target>1.7</target>
+                    <source>1.8</source>
+                    <target>1.8</target>
                     <showDeprecation>true</showDeprecation>
                 </configuration>
             </plugin>

src/main/java/com/ryanmichela/sshd/ConfigPasswordAuthenticator.java

@@ -1,6 +1,6 @@
 package com.ryanmichela.sshd;
 
-import org.apache.sshd.server.PasswordAuthenticator;
+import org.apache.sshd.server.auth.password.PasswordAuthenticator;
 import org.apache.sshd.server.session.ServerSession;
 
 import java.util.HashMap;
@@ -10,6 +10,7 @@ import java.util.Map;
  * Copyright 2013 Ryan Michela
  */
 public class ConfigPasswordAuthenticator implements PasswordAuthenticator {
+
     private Map<String, Integer> failCounts = new HashMap<String, Integer>();
 
     @Override

src/main/java/com/ryanmichela/sshd/ConsoleCommandCompleter.java

@@ -4,15 +4,16 @@ package com.ryanmichela.sshd;
  * Copyright 2013 Ryan Michela
  */
 
+import jline.console.completer.Completer;
 import org.bukkit.Bukkit;
 import org.bukkit.command.CommandMap;
-import org.bukkit.craftbukkit.libs.jline.console.completer.Completer;
 
 import java.util.List;
 import java.util.concurrent.ExecutionException;
 import java.util.logging.Level;
 
 public class ConsoleCommandCompleter implements Completer {
+
     public int complete(final String buffer, final int cursor, final List<CharSequence> candidates) {
         Waitable<List<String>> waitable = new Waitable<List<String>>() {
             @Override

src/main/java/com/ryanmichela/sshd/ConsoleCommandFactory.java

@@ -14,12 +14,14 @@ import java.io.OutputStream;
  * Copyright 2013 Ryan Michela
  */
 public class ConsoleCommandFactory implements CommandFactory {
+
     @Override
     public Command createCommand(String command) {
         return new ConsoleCommand(command);
     }
 
     public class ConsoleCommand implements Command {
+
         private String command;
 
         private InputStream in;
@@ -50,10 +52,11 @@ public class ConsoleCommandFactory implements CommandFactory {
         @Override
         public void start(Environment environment) throws IOException {
             try {
-                SshdPlugin.instance.getLogger().info("[U: " + environment.getEnv().get(Environment.ENV_USER) + "] " + command);
+                SshdPlugin.instance.getLogger()
+                        .info("[U: " + environment.getEnv().get(Environment.ENV_USER) + "] " + command);
                 Bukkit.dispatchCommand(Bukkit.getConsoleSender(), command);
             } catch (Exception e) {
-                SshdPlugin.instance.getLogger().severe("Error processing command from SSH");
+                SshdPlugin.instance.getLogger().severe("Error processing command from SSH -" + e.getMessage());
             } finally {
                 callback.onExit(0);
             }

src/main/java/com/ryanmichela/sshd/ConsoleLogFormatter.java

@@ -0,0 +1,101 @@
+package com.ryanmichela.sshd;
+
+/**
+ * Copyright 2013 Ryan Michela
+ */
+
+import org.bukkit.ChatColor;
+import org.fusesource.jansi.Ansi;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.text.SimpleDateFormat;
+import java.util.EnumMap;
+import java.util.Map;
+import java.util.logging.Formatter;
+import java.util.logging.LogRecord;
+
+public class ConsoleLogFormatter extends Formatter {
+
+    private SimpleDateFormat dateFormat;
+
+    public ConsoleLogFormatter() {
+        this.dateFormat = new SimpleDateFormat("HH:mm:ss");
+    }
+
+    public String format(LogRecord logrecord) {
+        try {
+            Class.forName("org.bukkit.craftbukkit.command.ColouredConsoleSender");
+        } catch (ClassNotFoundException ignored) {
+            // MEANS WE'RE ON PAPER/TACO/OTHER SHIT
+            colorize(logrecord);
+        }
+        StringBuilder stringbuilder = new StringBuilder();
+
+        stringbuilder.append(" [");
+        stringbuilder.append(this.dateFormat.format(logrecord.getMillis())).append(" ");
+
+        stringbuilder.append(logrecord.getLevel().getName()).append("]: ");
+        stringbuilder.append(this.formatMessage(logrecord));
+        stringbuilder.append('\n');
+        Throwable throwable = logrecord.getThrown();
+
+        if (throwable != null) {
+            StringWriter stringwriter = new StringWriter();
+
+            throwable.printStackTrace(new PrintWriter(stringwriter));
+            stringbuilder.append(stringwriter.toString());
+        }
+
+        return stringbuilder.toString();
+    }
+
+    private void colorize(LogRecord logrecord) {
+        // ORIGINAL CODE FROM org.bukkit.craftbukkit.command.ColouredConsoleSender
+        final Map<ChatColor, String> replacements = new EnumMap<>(ChatColor.class);
+
+        replacements
+                .put(ChatColor.BLACK, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.BLACK).boldOff().toString());
+        replacements
+                .put(ChatColor.DARK_BLUE, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.BLUE).boldOff().toString());
+        replacements.put(ChatColor.DARK_GREEN,
+                Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.GREEN).boldOff().toString());
+        replacements
+                .put(ChatColor.DARK_AQUA, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.CYAN).boldOff().toString());
+        replacements
+                .put(ChatColor.DARK_RED, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.RED).boldOff().toString());
+        replacements.put(ChatColor.DARK_PURPLE,
+                Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.MAGENTA).boldOff().toString());
+        replacements
+                .put(ChatColor.GOLD, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.YELLOW).boldOff().toString());
+        replacements.put(ChatColor.GRAY, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.WHITE).boldOff().toString());
+        replacements
+                .put(ChatColor.DARK_GRAY, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.BLACK).bold().toString());
+        replacements.put(ChatColor.BLUE, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.BLUE).bold().toString());
+        replacements.put(ChatColor.GREEN, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.GREEN).bold().toString());
+        replacements.put(ChatColor.AQUA, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.CYAN).bold().toString());
+        replacements.put(ChatColor.RED, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.RED).bold().toString());
+        replacements.put(ChatColor.LIGHT_PURPLE,
+                Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.MAGENTA).bold().toString());
+        replacements.put(ChatColor.YELLOW, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.YELLOW).bold().toString());
+        replacements.put(ChatColor.WHITE, Ansi.ansi().a(Ansi.Attribute.RESET).fg(Ansi.Color.WHITE).bold().toString());
+        replacements.put(ChatColor.MAGIC, Ansi.ansi().a(Ansi.Attribute.BLINK_SLOW).toString());
+        replacements.put(ChatColor.BOLD, Ansi.ansi().a(Ansi.Attribute.UNDERLINE_DOUBLE).toString());
+        replacements.put(ChatColor.STRIKETHROUGH, Ansi.ansi().a(Ansi.Attribute.STRIKETHROUGH_ON).toString());
+        replacements.put(ChatColor.UNDERLINE, Ansi.ansi().a(Ansi.Attribute.UNDERLINE).toString());
+        replacements.put(ChatColor.ITALIC, Ansi.ansi().a(Ansi.Attribute.ITALIC).toString());
+        replacements.put(ChatColor.RESET, Ansi.ansi().a(Ansi.Attribute.RESET).toString());
+
+        String result = logrecord.getMessage();
+        for (ChatColor color : ChatColor.values()) {
+            if (replacements.containsKey(color)) {
+                result = result.replaceAll("(?i)" + color.toString(), replacements.get(color));
+            } else {
+                result = result.replaceAll("(?i)" + color.toString(), "");
+            }
+        }
+        result += Ansi.ansi().reset().toString();
+        logrecord.setMessage(result);
+    }
+}
+

src/main/java/com/ryanmichela/sshd/ConsoleShellFactory.java

@@ -1,21 +1,29 @@
 package com.ryanmichela.sshd;
 
+import com.ryanmichela.sshd.implementations.SSHDCommandSender;
+import jline.console.ConsoleReader;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.core.Logger;
 import org.apache.sshd.common.Factory;
 import org.apache.sshd.server.Command;
 import org.apache.sshd.server.Environment;
 import org.apache.sshd.server.ExitCallback;
 import org.bukkit.Bukkit;
-import org.bukkit.craftbukkit.libs.jline.console.ConsoleReader;
 
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
-import java.util.logging.Formatter;
-import java.util.logging.Logger;
+import java.util.logging.Level;
 import java.util.logging.StreamHandler;
 
 public class ConsoleShellFactory implements Factory<Command> {
 
+    static SSHDCommandSender sshdCommandSender = new SSHDCommandSender();
+
+    public Command get() {
+        return this.create();
+    }
+
     public Command create() {
         return new ConsoleShell();
     }
@@ -29,8 +37,8 @@ public class ConsoleShellFactory implements Factory<Command> {
         private Environment environment;
         private Thread thread;
 
-        StreamHandler streamHandler;
-        ConsoleReader consoleReader;
+        StreamHandlerAppender streamHandlerAppender;
+        public static ConsoleReader consoleReader;
 
         public InputStream getIn() {
             return in;
@@ -65,20 +73,18 @@ public class ConsoleShellFactory implements Factory<Command> {
         }
 
         public void start(Environment env) throws IOException {
-
-            Formatter bukkitFormatter = Bukkit.getLogger().getHandlers()[0].getFormatter();
-
             try {
                 consoleReader = new ConsoleReader(in, new FlushyOutputStream(out), new SshTerminal());
                 consoleReader.setExpandEvents(true);
                 consoleReader.addCompleter(new ConsoleCommandCompleter());
 
-                streamHandler = new FlushyStreamHandler(out, bukkitFormatter, consoleReader);
-                Bukkit.getLogger().addHandler(streamHandler);
-                Logger.getLogger("").addHandler(streamHandler);
+                StreamHandler streamHandler = new FlushyStreamHandler(out, new ConsoleLogFormatter(), consoleReader);
+                streamHandlerAppender = new StreamHandlerAppender(streamHandler);
+
+                ((Logger) LogManager.getRootLogger()).addAppender(streamHandlerAppender);
 
                 environment = env;
-                thread = new Thread(this, "EchoShell " + env.getEnv().get(Environment.ENV_USER));
+                thread = new Thread(this, "SSHD ConsoleShell " + env.getEnv().get(Environment.ENV_USER));
                 thread.start();
             } catch (Exception e) {
                 throw new IOException("Error starting shell", e);
@@ -86,43 +92,49 @@ public class ConsoleShellFactory implements Factory<Command> {
         }
 
         public void destroy() {
-            Bukkit.getLogger().removeHandler(streamHandler);
-            Logger.getLogger("").removeHandler(streamHandler);
+            ((Logger) LogManager.getRootLogger()).removeAppender(streamHandlerAppender);
         }
 
         public void run() {
-            String command;
             try {
+                if (!SshdPlugin.instance.getConfig().getString("mode").equals("RPC"))
                     printPreamble(consoleReader);
                 while (true) {
-                    command = consoleReader.readLine("\r>", null);
-                    if (command != null) {
-                        if (command.equals("exit")) {
-                            break;
-                        }
-                        SshdPlugin.instance.getLogger().info("[U: " + environment.getEnv().get(Environment.ENV_USER) + "] " + command);
+                    String command = consoleReader.readLine("\r>", null);
+                    if (command == null) continue;
+                    if (command.equals("exit") || command.equals("quit")) break;
+                    Bukkit.getScheduler().runTask(SshdPlugin.instance, () -> {
+                        if (SshdPlugin.instance.getConfig().getString("mode").equals("RPC") &&
+                            command.startsWith("rpc")) {
+                            //NO ECHO NO PREAMBLE AND SHIT
+                            String cmd = command.substring("rpc".length() + 1, command.length());
+                            Bukkit.dispatchCommand(sshdCommandSender, cmd);
+                        } else {
+                            SshdPlugin.instance.getLogger()
+                                    .info("<" + environment.getEnv().get(Environment.ENV_USER) + "> " + command);
                             Bukkit.dispatchCommand(Bukkit.getConsoleSender(), command);
                         }
+                    });
                 }
             } catch (IOException e) {
-                SshdPlugin.instance.getLogger().severe("Error processing command from SSH");
+                SshdPlugin.instance.getLogger().log(Level.SEVERE, "Error processing command from SSH", e);
             } finally {
                 callback.onExit(0);
             }
         }
 
         private void printPreamble(ConsoleReader consoleReader) throws IOException {
-            consoleReader.println("  _____ _____ _    _ _____");
-            consoleReader.println(" / ____/ ____| |  | |  __ \\");
-            consoleReader.println("| (___| (___ | |__| | |  | |");
-            consoleReader.println(" \\___ \\\\___ \\|  __  | |  | |");
-            consoleReader.println(" ____) |___) | |  | | |__| |");
-            consoleReader.println("|_____/_____/|_|  |_|_____/");
-            consoleReader.println("Connected to: " + Bukkit.getServer().getName());
-            consoleReader.println("- " + Bukkit.getServer().getMotd());
-            consoleReader.println();
-            consoleReader.println("Type 'exit' to exit the shell.");
-            consoleReader.println("===============================================");
+            consoleReader.println("  _____ _____ _    _ _____" + "\r");
+            consoleReader.println(" / ____/ ____| |  | |  __ \\" + "\r");
+            consoleReader.println("| (___| (___ | |__| | |  | |" + "\r");
+            consoleReader.println(" \\___ \\\\___ \\|  __  | |  | |" + "\r");
+            consoleReader.println(" ____) |___) | |  | | |__| |" + "\r");
+            consoleReader.println("|_____/_____/|_|  |_|_____/" + "\r");
+            consoleReader.println("Connected to: " + Bukkit.getServer().getName() + "\r");
+            consoleReader.println("- " + Bukkit.getServer().getMotd() + "\r");
+            consoleReader.println("\r");
+            consoleReader.println("Type 'exit' to exit the shell." + "\r");
+            consoleReader.println("===============================================" + "\r");
         }
     }
 }

src/main/java/com/ryanmichela/sshd/FlushyOutputStream.java

@@ -1,5 +1,7 @@
 package com.ryanmichela.sshd;
 
+import org.apache.sshd.common.SshException;
+
 import java.io.IOException;
 import java.io.OutputStream;
 
@@ -7,7 +9,9 @@ import java.io.OutputStream;
  * Copyright 2013 Ryan Michela
  */
 public class FlushyOutputStream extends OutputStream {
+
     private OutputStream base;
+    private boolean isClosed = false;
 
     public FlushyOutputStream(OutputStream base) {
         this.base = base;
@@ -15,19 +19,31 @@ public class FlushyOutputStream extends OutputStream {
 
     @Override
     public void write(int b) throws IOException {
+        if (isClosed) return;
         base.write(b);
         base.flush();
     }
 
     @Override
     public void write(byte[] b) throws IOException {
+        if (isClosed) return;
         base.write(b);
         base.flush();
     }
 
     @Override
     public void write(byte[] b, int off, int len) throws IOException {
+        if (isClosed) return;
+        try {
             base.write(b, off, len);
             base.flush();
+        } catch (SshException e) {
+            if (!e.getMessage().contains("channel already closed")) throw e;
+        }
+    }
+
+    @Override
+    public void close() {
+        isClosed = true;
     }
 }

src/main/java/com/ryanmichela/sshd/FlushyStreamHandler.java

@@ -1,7 +1,7 @@
 package com.ryanmichela.sshd;
 
+import jline.console.ConsoleReader;
 import org.apache.sshd.common.SshException;
-import org.bukkit.craftbukkit.libs.jline.console.ConsoleReader;
 
 import java.io.IOException;
 import java.io.OutputStream;
@@ -11,6 +11,7 @@ import java.util.logging.*;
  * Copyright 2013 Ryan Michela
  */
 public class FlushyStreamHandler extends StreamHandler {
+
     private ConsoleReader reader;
 
     public FlushyStreamHandler(OutputStream out, Formatter formatter, ConsoleReader reader) {

src/main/java/com/ryanmichela/sshd/PemDecoder.java

@@ -1,6 +1,6 @@
 package com.ryanmichela.sshd;
 
-import org.apache.mina.util.Base64;
+import org.apache.commons.codec.binary.Base64;
 
 import java.io.Reader;
 import java.math.BigInteger;
@@ -13,6 +13,7 @@ import java.security.spec.RSAPublicKeySpec;
  * Copyright 2013 Ryan Michela
  */
 public class PemDecoder extends java.io.BufferedReader {
+
     private static final String BEGIN = "^-+\\s*BEGIN.+";
     private static final String END = "^-+\\s*END.+";
     private static final String COMMENT = "Comment:";
@@ -22,7 +23,7 @@ public class PemDecoder extends java.io.BufferedReader {
     }
 
     public PublicKey getPemBytes() throws Exception {
-        StringBuffer b64 = new StringBuffer();
+        StringBuilder b64 = new StringBuilder();
 
         String line = readLine();
         if (!line.matches(BEGIN)) {

src/main/java/com/ryanmichela/sshd/PublicKeyAuthenticator.java

@@ -1,7 +1,7 @@
 package com.ryanmichela.sshd;
 
-import org.apache.commons.lang3.ArrayUtils;
-import org.apache.sshd.server.PublickeyAuthenticator;
+import org.apache.commons.lang.ArrayUtils;
+import org.apache.sshd.server.auth.pubkey.PublickeyAuthenticator;
 import org.apache.sshd.server.session.ServerSession;
 
 import java.io.File;
@@ -12,6 +12,7 @@ import java.security.PublicKey;
  * Copyright 2013 Ryan Michela
  */
 public class PublicKeyAuthenticator implements PublickeyAuthenticator {
+
     private File authorizedKeysDir;
 
     public PublicKeyAuthenticator(File authorizedKeysDir) {
@@ -39,10 +40,13 @@ public class PublicKeyAuthenticator implements PublickeyAuthenticator {
                     SshdPlugin.instance.getLogger().severe("Failed to parse PEM file. " + keyFile.getAbsolutePath());
                 }
             } catch (Exception e) {
-                SshdPlugin.instance.getLogger().severe("Failed to process public key " + keyFile.getAbsolutePath() + ". " + e.getMessage());
+                SshdPlugin.instance.getLogger()
+                        .severe("Failed to process public key " + keyFile.getAbsolutePath() + ". " + e.getMessage());
             }
         } else {
-            SshdPlugin.instance.getLogger().warning("Could not locate public key for " + username + ". Make sure the user's key is named the same as their user name without a file extension.");
+            SshdPlugin.instance.getLogger().warning("Could not locate public key for " + username +
+                                                    ". Make sure the user's key is named the same as their user name " +
+                                                    "without a file extension.");
         }
 
         return false;

src/main/java/com/ryanmichela/sshd/ReflectionUtil.java

@@ -8,6 +8,7 @@ import java.lang.reflect.Modifier;
  * Copyright 2013 Ryan Michela
  */
 public class ReflectionUtil {
+
     public static void setProtectedValue(Object o, String field, Object newValue) {
         setProtectedValue(o.getClass(), o, field, newValue);
     }
@@ -28,9 +29,7 @@ public class ReflectionUtil {
             modifiersField.setInt(f, f.getModifiers() & ~Modifier.FINAL);
 
             f.set(o, newValue);
-        } catch (NoSuchFieldException ex) {
-            System.out.println("*** " + c.getName() + ":" + ex);
-        } catch (IllegalAccessException ex) {
+        } catch (NoSuchFieldException | IllegalAccessException ex) {
             System.out.println("*** " + c.getName() + ":" + ex);
         }
     }
@@ -89,8 +88,7 @@ public class ReflectionUtil {
             Method m = c.getDeclaredMethod(method, pTypes);
             m.setAccessible(true);
             return m.invoke(o, args);
-        }
-        catch (Exception ex) {
+        } catch (Exception ex) {
             System.out.println("*** " + c.getName() + "." + method + "(): " + ex);
             return null;
         }

src/main/java/com/ryanmichela/sshd/SshTerminal.java

@@ -1,6 +1,6 @@
 package com.ryanmichela.sshd;
 
-import org.bukkit.craftbukkit.libs.jline.TerminalSupport;
+import jline.TerminalSupport;
 
 /**
  * Copyright 2013 Ryan Michela

src/main/java/com/ryanmichela/sshd/SshdPlugin.java

@@ -1,17 +1,22 @@
 package com.ryanmichela.sshd;
 
-import org.apache.sshd.SshServer;
+import org.apache.sshd.common.file.virtualfs.VirtualFileSystemFactory;
+import org.apache.sshd.server.SshServer;
 import org.apache.sshd.server.keyprovider.SimpleGeneratorHostKeyProvider;
+import org.apache.sshd.server.subsystem.sftp.SftpSubsystemFactory;
 import org.bukkit.plugin.java.JavaPlugin;
 
 import java.io.File;
 import java.io.IOException;
+import java.nio.file.FileSystems;
+import java.util.Collections;
 import java.util.logging.Level;
 
 /**
  * Copyright 2013 Ryan Michela
  */
 public class SshdPlugin extends JavaPlugin {
+
     private SshServer sshd;
     public static SshdPlugin instance;
 
@@ -35,19 +40,31 @@ public class SshdPlugin extends JavaPlugin {
 
         sshd = SshServer.setUpDefaultServer();
         sshd.setPort(getConfig().getInt("port", 22));
+        String host = getConfig().getString("listenAddress", "all");
+        sshd.setHost(host.equals("all") ? null : host);
 
         File hostKey = new File(getDataFolder(), "hostkey");
         File authorizedKeys = new File(getDataFolder(), "authorized_keys");
 
-        sshd.setKeyPairProvider(new SimpleGeneratorHostKeyProvider(hostKey.getPath()));
+        sshd.setKeyPairProvider(new SimpleGeneratorHostKeyProvider(hostKey));
         sshd.setShellFactory(new ConsoleShellFactory());
         sshd.setPasswordAuthenticator(new ConfigPasswordAuthenticator());
         sshd.setPublickeyAuthenticator(new PublicKeyAuthenticator(authorizedKeys));
+
+        if (getConfig().getBoolean("enableSFTP")) {
+            sshd.setSubsystemFactories(Collections.singletonList(new SftpSubsystemFactory()));
+            sshd.setFileSystemFactory(new VirtualFileSystemFactory(
+                    FileSystems.getDefault().getPath(
+                            getDataFolder().getAbsolutePath()
+                    ).getParent().getParent()
+            ));
+        }
+
         sshd.setCommandFactory(new ConsoleCommandFactory());
         try {
             sshd.start();
         } catch (IOException e) {
-            getLogger().severe("Failed to start SSH server! " + e.getMessage());
+            getLogger().log(Level.SEVERE, "Failed to start SSH server! ", e);
         }
     }
 
@@ -55,7 +72,7 @@ public class SshdPlugin extends JavaPlugin {
     public void onDisable() {
         try {
             sshd.stop();
-        } catch (InterruptedException e) {
+        } catch (Exception e) {
             // do nothing
         }
     }

src/main/java/com/ryanmichela/sshd/StreamHandlerAppender.java

@@ -0,0 +1,92 @@
+package com.ryanmichela.sshd;
+
+import org.apache.logging.log4j.core.Appender;
+import org.apache.logging.log4j.core.ErrorHandler;
+import org.apache.logging.log4j.core.Layout;
+import org.apache.logging.log4j.core.LogEvent;
+
+import java.io.Serializable;
+import java.util.UUID;
+import java.util.logging.LogRecord;
+import java.util.logging.StreamHandler;
+
+/**
+ * Copyright 2014 Ryan Michela
+ */
+public class StreamHandlerAppender implements Appender {
+
+    private StreamHandler streamHandler;
+    private UUID uuid;
+
+    public StreamHandlerAppender(StreamHandler streamHandler) {
+        this.streamHandler = streamHandler;
+        uuid = UUID.randomUUID();
+    }
+
+    @Override
+    public void append(LogEvent logEvent) {
+        java.util.logging.Level level;
+
+        if (logEvent.getLevel().equals(org.apache.logging.log4j.Level.DEBUG)) {
+            level = java.util.logging.Level.FINE;
+        } else if (logEvent.getLevel().equals(org.apache.logging.log4j.Level.INFO)) {
+            level = java.util.logging.Level.INFO;
+        } else if (logEvent.getLevel().equals(org.apache.logging.log4j.Level.WARN)) {
+            level = java.util.logging.Level.WARNING;
+        } else if (logEvent.getLevel().equals(org.apache.logging.log4j.Level.ERROR)) {
+            level = java.util.logging.Level.SEVERE;
+        } else {
+            level = java.util.logging.Level.INFO;
+        }
+        String message = logEvent.getMessage().getFormattedMessage();
+
+
+        LogRecord logRecord = new LogRecord(level, message);
+        streamHandler.publish(logRecord);
+    }
+
+    @Override
+    public String getName() {
+        return "StreamHandlerAppender:" + uuid.toString();
+    }
+
+    @Override
+    public Layout<? extends Serializable> getLayout() {
+        return null;
+    }
+
+    @Override
+    public boolean ignoreExceptions() {
+        return false;
+    }
+
+    @Override
+    public ErrorHandler getHandler() {
+        return null;
+    }
+
+    @Override
+    public void setHandler(ErrorHandler errorHandler) {
+
+    }
+
+    @Override
+    public void start() {
+
+    }
+
+    @Override
+    public void stop() {
+
+    }
+
+    @Override
+    public boolean isStarted() {
+        return true;
+    }
+
+    @Override
+    public boolean isStopped() {
+        return false;
+    }
+}

src/main/java/com/ryanmichela/sshd/Waitable.java

@@ -6,11 +6,13 @@ import java.util.concurrent.ExecutionException;
  * Copyright 2013 Ryan Michela
  */
 public abstract class Waitable<T> implements Runnable {
+
     private enum Status {
         WAITING,
         RUNNING,
         FINISHED,
     }
+
     Throwable t = null;
     T value = null;
     Status status = Status.WAITING;

src/main/java/com/ryanmichela/sshd/implementations/SSHDCommandSender.java

@@ -0,0 +1,130 @@
+package com.ryanmichela.sshd.implementations;
+
+import com.ryanmichela.sshd.ConsoleShellFactory;
+import com.ryanmichela.sshd.SshdPlugin;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.Server;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.ConsoleCommandSender;
+import org.bukkit.conversations.Conversation;
+import org.bukkit.conversations.ConversationAbandonedEvent;
+import org.bukkit.conversations.ManuallyAbandonedConversationCanceller;
+import org.bukkit.permissions.PermissibleBase;
+import org.bukkit.permissions.Permission;
+import org.bukkit.permissions.PermissionAttachment;
+import org.bukkit.permissions.PermissionAttachmentInfo;
+import org.bukkit.plugin.Plugin;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.Set;
+import java.util.logging.Level;
+
+public class SSHDCommandSender implements ConsoleCommandSender, CommandSender {
+
+    private final PermissibleBase perm = new PermissibleBase(this);
+    private final SSHDConversationTracker conversationTracker = new SSHDConversationTracker();
+
+    public void sendMessage(String message) {
+        this.sendRawMessage(message);
+    }
+
+    public void sendRawMessage(String message) {
+        if(ConsoleShellFactory.ConsoleShell.consoleReader == null) return;
+        try {
+            ConsoleShellFactory.ConsoleShell.consoleReader.println(ChatColor.stripColor(message));
+        } catch (IOException e) {
+            SshdPlugin.instance.getLogger().log(Level.SEVERE, "Error sending message to SSHDCommandSender", e);
+        }
+    }
+
+    public void sendMessage(String[] messages) {
+        Arrays.asList(messages).forEach(this::sendMessage);
+    }
+
+    public String getName() {
+        return "SSHD CONSOLE";
+    }
+
+    public boolean isOp() {
+        return true;
+    }
+
+    public void setOp(boolean value) {
+        throw new UnsupportedOperationException("Cannot change operator status of server console");
+    }
+
+    public boolean beginConversation(Conversation conversation) {
+        return this.conversationTracker.beginConversation(conversation);
+    }
+
+    public void abandonConversation(Conversation conversation) {
+        this.conversationTracker.abandonConversation(conversation, new ConversationAbandonedEvent(conversation, new ManuallyAbandonedConversationCanceller()));
+    }
+
+    public void abandonConversation(Conversation conversation, ConversationAbandonedEvent details) {
+        this.conversationTracker.abandonConversation(conversation, details);
+    }
+
+    public void acceptConversationInput(String input) {
+        this.conversationTracker.acceptConversationInput(input);
+    }
+
+    public boolean isConversing() {
+        return this.conversationTracker.isConversing();
+    }
+
+    public boolean isPermissionSet(String name) {
+        return this.perm.isPermissionSet(name);
+    }
+
+    public boolean isPermissionSet(Permission perm) {
+        return this.perm.isPermissionSet(perm);
+    }
+
+    public boolean hasPermission(String name) {
+        return this.perm.hasPermission(name);
+    }
+
+    public boolean hasPermission(Permission perm) {
+        return this.perm.hasPermission(perm);
+    }
+
+    public PermissionAttachment addAttachment(Plugin plugin, String name, boolean value) {
+        return this.perm.addAttachment(plugin, name, value);
+    }
+
+    public PermissionAttachment addAttachment(Plugin plugin) {
+        return this.perm.addAttachment(plugin);
+    }
+
+    public PermissionAttachment addAttachment(Plugin plugin, String name, boolean value, int ticks) {
+        return this.perm.addAttachment(plugin, name, value, ticks);
+    }
+
+    public PermissionAttachment addAttachment(Plugin plugin, int ticks) {
+        return this.perm.addAttachment(plugin, ticks);
+    }
+
+    public void removeAttachment(PermissionAttachment attachment) {
+        this.perm.removeAttachment(attachment);
+    }
+
+    public void recalculatePermissions() {
+        this.perm.recalculatePermissions();
+    }
+
+    public Set<PermissionAttachmentInfo> getEffectivePermissions() {
+        return this.perm.getEffectivePermissions();
+    }
+
+    public boolean isPlayer() {
+        return false;
+    }
+
+    public Server getServer() {
+        return Bukkit.getServer();
+    }
+
+}

src/main/java/com/ryanmichela/sshd/implementations/SSHDConversationTracker.java

@@ -0,0 +1,78 @@
+package com.ryanmichela.sshd.implementations;
+
+import org.bukkit.Bukkit;
+import org.bukkit.conversations.Conversation;
+import org.bukkit.conversations.ConversationAbandonedEvent;
+import org.bukkit.conversations.ManuallyAbandonedConversationCanceller;
+
+import java.util.LinkedList;
+import java.util.logging.Level;
+
+public class SSHDConversationTracker {
+    private LinkedList<Conversation> conversationQueue = new LinkedList<>();
+
+    synchronized boolean beginConversation(Conversation conversation) {
+        if (!this.conversationQueue.contains(conversation)) {
+            this.conversationQueue.addLast(conversation);
+            if (this.conversationQueue.getFirst() == conversation) {
+                conversation.begin();
+                conversation.outputNextPrompt();
+                return true;
+            }
+        }
+
+        return true;
+    }
+
+    synchronized void abandonConversation(Conversation conversation, ConversationAbandonedEvent details) {
+        if (!this.conversationQueue.isEmpty()) {
+            if (this.conversationQueue.getFirst() == conversation) {
+                conversation.abandon(details);
+            }
+
+            if (this.conversationQueue.contains(conversation)) {
+                this.conversationQueue.remove(conversation);
+            }
+
+            if (!this.conversationQueue.isEmpty()) {
+                this.conversationQueue.getFirst().outputNextPrompt();
+            }
+        }
+
+    }
+
+    public synchronized void abandonAllConversations() {
+        LinkedList<Conversation> oldQueue = this.conversationQueue;
+        this.conversationQueue = new LinkedList<>();
+
+        for (Conversation conversation : oldQueue) {
+            try {
+                conversation.abandon(new ConversationAbandonedEvent(conversation, new ManuallyAbandonedConversationCanceller()));
+            } catch (Throwable var5) {
+                Bukkit.getLogger().log(Level.SEVERE, "Unexpected exception while abandoning a conversation", var5);
+            }
+        }
+
+    }
+
+    synchronized void acceptConversationInput(String input) {
+        if (this.isConversing()) {
+            Conversation conversation = this.conversationQueue.getFirst();
+
+            try {
+                conversation.acceptInput(input);
+            } catch (Throwable var4) {
+                conversation.getContext().getPlugin().getLogger().log(Level.WARNING, String.format("Plugin %s generated an exception whilst handling conversation input", conversation.getContext().getPlugin().getDescription().getFullName()), var4);
+            }
+        }
+
+    }
+
+    synchronized boolean isConversing() {
+        return !this.conversationQueue.isEmpty();
+    }
+
+    public synchronized boolean isConversingModaly() {
+        return this.isConversing() && this.conversationQueue.getFirst().isModal();
+    }
+}

src/main/java/org/slf4j/impl/PluginSlf4jFactory.java

@@ -22,10 +22,7 @@ public class PluginSlf4jFactory implements ILoggerFactory {
         private String name;
 
         private boolean isEnabled(Level level) {
-            if (SshdPlugin.instance != null) {
-                return SshdPlugin.instance.getLogger().isLoggable(level);
-            }
-            return false;
+            return SshdPlugin.instance != null && SshdPlugin.instance.getLogger().isLoggable(level);
         }
 
         private void log(Level level, String s, Object[] objects) {

src/main/resources/config.yml

@@ -1,6 +1,16 @@
-# This is the port the SSH server will listen on.
+# The IP addresses(s) the SSH server will listen on. Use a comma separated list for multiple addresses.
+# Leave as "all" for all addresses.
+listenAddress: all
+# The port the SSH server will listen on.
 port: 22
 
+# Operational mode. Don't touch if you don't know what you're doing. Can be either DEFAULT or RPC
+mode: DEFAULT
+
+# Enable built-in SFTP server or not. You'll be able to connect and upload/download files via SFTP protocol.
+# Might be useful for testing purposes as well , i. e. docker containers.
+enableSFTP: true
+
 # By default, only public key authentication is enabled. This is the most secure mode.
 # To authorize a user to log in with public key authentication, install their public
 # PEM certificate in the authorized_users directory. Name the key file with user's user

src/main/resources/plugin.yml

@@ -1,4 +1,4 @@
 name: SSHD
-version: "1.0"
-author: Ryan Michela
+version: ${project.version}
+author: Ryan Michela, Haarolean, toxuin
 main: com.ryanmichela.sshd.SshdPlugin