Improved logging

Add SFTP support

.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>1.2</version>
+    <version>1.3.4</version>
     <url>http://dev.bukkit.org/server-mods/sshd/</url>
 
     <!-- Repositories -->
     <repositories>
         <repository>
-            <id>bukkit-repo</id>
+            <id>spigot-repo</id>
-            <url>http://repo.bukkit.org/content/groups/public/</url>
+            <url>https://hub.spigotmc.org/nexus/content/groups/public</url>
         </repository>
     </repositories>
 
@@ -29,58 +29,107 @@
     <dependencies>
         <dependency>
             <groupId>org.bukkit</groupId>
-            <artifactId>craftbukkit</artifactId>
+            <artifactId>bukkit</artifactId>
-            <version>1.7.9-R0.2</version>
+            <version>1.12.2-R0.1-SNAPSHOT</version>
-            <scope>provided</scope>
-            <type>jar</type>
         </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.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>${basedir}/src/main/resources</directory>
+                <includes>
+                    <include>plugin.yml</include>
+                    <include>config.yml</include>
+                </includes>
+            </resource>
+        </resources>
+
         <plugins>
-            <!-- Shade plugin -->
             <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-assembly-plugin</artifactId>
-                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.1.0</version>
-                <version>1.5</version>
                 <executions>
                     <execution>
                         <phase>package</phase>
                         <goals>
-                            <goal>shade</goal>
+                            <goal>single</goal>
                         </goals>
                     </execution>
                 </executions>
                 <configuration>
-                    <filters>
+                    <finalName>${project.name}-${project.version}</finalName>
-                        <filter>
+                    <appendAssemblyId>false</appendAssemblyId>
-                            <artifact>*:*</artifact>
+                    <descriptorRefs>
-                            <excludes>
+                        <descriptorRef>jar-with-dependencies</descriptorRef>
-                                <exclude>META-INF/*.SF</exclude>
+                    </descriptorRefs>
-                                <exclude>META-INF/*.DSA</exclude>
-                                <exclude>META-INF/*.RSA</exclude>
-                            </excludes>
-                        </filter>
-                    </filters>
-                    <minimizeJar>true</minimizeJar>
                 </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>1.6</source>
+                    <source>1.8</source>
-                    <target>1.6</target>
+                    <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;

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

@@ -6,7 +6,7 @@ package com.ryanmichela.sshd;
 
 import org.bukkit.Bukkit;
 import org.bukkit.command.CommandMap;
-import org.bukkit.craftbukkit.libs.jline.console.completer.Completer;
+import jline.console.completer.Completer;
 
 import java.util.List;
 import java.util.concurrent.ExecutionException;

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

@@ -4,9 +4,14 @@ 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;
 
@@ -19,10 +24,16 @@ public class ConsoleLogFormatter extends Formatter {
     }
 
     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(Long.valueOf(logrecord.getMillis()))).append(" ");
+        stringbuilder.append(this.dateFormat.format(logrecord.getMillis())).append(" ");
 
         stringbuilder.append(logrecord.getLevel().getName()).append("]: ");
         stringbuilder.append(this.formatMessage(logrecord));
@@ -38,5 +49,44 @@ public class ConsoleLogFormatter extends Formatter {
 
         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

@@ -1,5 +1,7 @@
 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;
@@ -7,21 +9,26 @@ 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.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();
     }
 
     public static class ConsoleShell implements Command, Runnable {
-
         private InputStream in;
         private OutputStream out;
         private OutputStream err;
@@ -30,7 +37,7 @@ public class ConsoleShellFactory implements Factory<Command> {
         private Thread thread;
 
         StreamHandlerAppender streamHandlerAppender;
-        ConsoleReader consoleReader;
+        public static ConsoleReader consoleReader;
 
         public InputStream getIn() {
             return in;
@@ -65,7 +72,6 @@ public class ConsoleShellFactory implements Factory<Command> {
         }
 
         public void start(Environment env) throws IOException {
-
             try {
                 consoleReader = new ConsoleReader(in, new FlushyOutputStream(out), new SshTerminal());
                 consoleReader.setExpandEvents(true);
@@ -89,38 +95,43 @@ public class ConsoleShellFactory implements Factory<Command> {
         }
 
         public void run() {
-            String command;
             try {
+                if (!SshdPlugin.instance.getConfig().getString("mode").equals("RPC"))
                     printPreamble(consoleReader);
-                while(true) {
+                while (true) {
-                    command = consoleReader.readLine("\r>", null);
+                    String command = consoleReader.readLine("\r>", null);
-                    if (command != null) {
+                    if (command == null) continue;
-                        if (command.equals("exit")) {
+                    if (command.equals("exit")) break;
-                            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{
+        private void printPreamble(ConsoleReader consoleReader) throws IOException {
-            consoleReader.println("  _____ _____ _    _ _____");
+            consoleReader.println("  _____ _____ _    _ _____" + "\r");
-            consoleReader.println(" / ____/ ____| |  | |  __ \\");
+            consoleReader.println(" / ____/ ____| |  | |  __ \\" + "\r");
-            consoleReader.println("| (___| (___ | |__| | |  | |");
+            consoleReader.println("| (___| (___ | |__| | |  | |" + "\r");
-            consoleReader.println(" \\___ \\\\___ \\|  __  | |  | |");
+            consoleReader.println(" \\___ \\\\___ \\|  __  | |  | |" + "\r");
-            consoleReader.println(" ____) |___) | |  | | |__| |");
+            consoleReader.println(" ____) |___) | |  | | |__| |" + "\r");
-            consoleReader.println("|_____/_____/|_|  |_|_____/");
+            consoleReader.println("|_____/_____/|_|  |_|_____/" + "\r");
-            consoleReader.println("Connected to: " + Bukkit.getServer().getName());
+            consoleReader.println("Connected to: " + Bukkit.getServer().getName() + "\r");
-            consoleReader.println("- " + Bukkit.getServer().getMotd());
+            consoleReader.println("- " + Bukkit.getServer().getMotd() + "\r");
-            consoleReader.println();
+            consoleReader.println("\r");
-            consoleReader.println("Type 'exit' to exit the shell.");
+            consoleReader.println("Type 'exit' to exit the shell." + "\r");
-            consoleReader.println("===============================================");
+            consoleReader.println("===============================================" + "\r");
         }
     }
 }

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

@@ -8,6 +8,7 @@ import java.io.OutputStream;
  */
 public class FlushyOutputStream extends OutputStream {
     private OutputStream base;
+    private boolean isClosed = false;
 
     public FlushyOutputStream(OutputStream base) {
         this.base = base;
@@ -15,19 +16,27 @@ 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;
         base.write(b, off, len);
         base.flush();
     }
+
+    @Override
+    public void close() {
+        isClosed = true;
+    }
 }

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

@@ -1,7 +1,8 @@
 package com.ryanmichela.sshd;
 
 import org.apache.sshd.common.SshException;
-import org.bukkit.craftbukkit.libs.jline.console.ConsoleReader;
+import jline.console.ConsoleReader;
+
 
 import java.io.IOException;
 import java.io.OutputStream;

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;
@@ -22,7 +22,7 @@ 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.lang.ArrayUtils;
-import org.apache.sshd.server.PublickeyAuthenticator;
+import org.apache.sshd.server.auth.pubkey.PublickeyAuthenticator;
 import org.apache.sshd.server.session.ServerSession;
 
 import java.io.File;

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

@@ -28,9 +28,7 @@ public class ReflectionUtil {
             modifiersField.setInt(f, f.getModifiers() & ~Modifier.FINAL);
 
             f.set(o, newValue);
-        } catch (NoSuchFieldException ex) {
+        } catch (NoSuchFieldException | IllegalAccessException ex) {
-            System.out.println("*** " + c.getName() + ":" + ex);
-        } catch (IllegalAccessException ex) {
             System.out.println("*** " + c.getName() + ":" + ex);
         }
     }

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

@@ -1,11 +1,15 @@
 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;
 
 /**
@@ -41,15 +45,25 @@ public class SshdPlugin extends JavaPlugin {
         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);
         }
     }
 

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

@@ -25,15 +25,18 @@ public class StreamHandlerAppender implements Appender {
     @Override
     public void append(LogEvent logEvent) {
         java.util.logging.Level level;
-        switch (logEvent.getLevel())
-        {
-            case DEBUG: level = java.util.logging.Level.FINE; break;
-            case INFO: level = java.util.logging.Level.INFO; break;
-            case WARN: level = java.util.logging.Level.WARNING; break;
-            case ERROR: level = java.util.logging.Level.SEVERE; break;
-            default: level = java.util.logging.Level.INFO; break;
-        }
 
+        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();
 
 
@@ -80,4 +83,9 @@ public class StreamHandlerAppender implements Appender {
     public boolean isStarted() {
         return true;
     }
+
+    @Override
+    public boolean isStopped() {
+        return false;
+    }
 }

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 != null && SshdPlugin.instance.getLogger().isLoggable(level);
-                return SshdPlugin.instance.getLogger().isLoggable(level);
-            }
-            return false;
         }
 
         private void log(Level level, String s, Object[] objects) {

src/main/resources/config.yml

@@ -4,6 +4,13 @@ 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: "1.2"
+version: ${project.version}
-author: Ryan Michela
+author: Ryan Michela, Haarolean, toxuin
 main: com.ryanmichela.sshd.SshdPlugin