kotlin: Add initial implementation

KotlinPlugin/.gitignore

@@ -0,0 +1,4 @@
+build/
+gradle/
+.gradle/
+.idea/

KotlinPlugin/build.gradle.kts

@@ -0,0 +1,28 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+    kotlin("jvm") version "1.3.50"
+}
+
+group = "com.terraocean"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+    maven("https://hub.spigotmc.org/nexus/content/repositories/snapshots/")
+    maven("https://oss.sonatype.org/content/repositories/snapshots")
+}
+
+dependencies {
+    val ktorVersion = "1.2.4"
+
+    implementation(kotlin("stdlib-jdk8"))
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.2")
+    implementation("io.ktor:ktor-client-websockets:$ktorVersion")
+    implementation("io.ktor:ktor-client-okhttp:$ktorVersion")
+    compileOnly("org.spigotmc:spigot-api:1.14.4-R0.1-SNAPSHOT")
+}
+
+tasks.withType<KotlinCompile> {
+    kotlinOptions.jvmTarget = "1.8"
+}

KotlinPlugin/gradle.properties

@@ -0,0 +1 @@
+kotlin.code.style=official

KotlinPlugin/gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

KotlinPlugin/gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

KotlinPlugin/settings.gradle

@@ -0,0 +1,2 @@
+rootProject.name = 'plugin'
+

KotlinPlugin/src/main/kotlin/com/terraocean/plugin/TerraOceanPlugin.kt

@@ -0,0 +1,26 @@
+package com.terraocean.plugin
+
+import com.terraocean.plugin.bridge.establishConnection
+import io.ktor.util.KtorExperimentalAPI
+import kotlinx.coroutines.MainScope
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.launch
+import org.bukkit.plugin.java.JavaPlugin
+import java.io.File
+
+internal lateinit var instance: TerraOceanPlugin
+
+class TerraOceanPlugin: JavaPlugin() {
+    @KtorExperimentalAPI
+    override fun onEnable() {
+        instance = this
+        config.load(File("plugin/terraocean.yml"))
+        MainScope().launch {
+            establishConnection()
+        }
+        logger.info("TerraOcean plugin has started.")
+    }
+    override fun onDisable() {
+        logger.info("TerraOcean plugin has stopped.")
+    }
+}

KotlinPlugin/src/main/kotlin/com/terraocean/plugin/afk/AFKRecorder.kt

@@ -0,0 +1,33 @@
+package com.terraocean.plugin.afk
+
+import com.terraocean.plugin.bridge.reportPlayerActivity
+import org.bukkit.event.EventHandler
+import org.bukkit.event.Listener
+import org.bukkit.event.player.PlayerMoveEvent
+
+//activityRequirement is the time it takes for a player to be considered inactive.
+const val activityRequirement = 1000 * 30
+
+var lastMovement = HashMap<String, Long>()
+var lastRecord = HashMap<String, Long>()
+
+class AFKRecorder: Listener {
+    @EventHandler
+    fun onPlayerMovement(e: PlayerMoveEvent) {
+        val playerID = e.player.uniqueId.toString()
+        val time = System.currentTimeMillis()
+
+        lastMovement[playerID]?.let{ lastActive ->
+            if (time <= lastActive + activityRequirement) {
+                return@let
+            }
+            reportPlayerActivity(e.player.name, lastActive-lastRecord[playerID]!!)
+            lastRecord[playerID] = time
+        }
+
+        if (lastRecord[playerID] == null) {
+            lastRecord[playerID] = time
+        }
+        lastMovement[playerID] = time
+    }
+}

KotlinPlugin/src/main/kotlin/com/terraocean/plugin/bridge/AFKBridge.kt

@@ -0,0 +1,11 @@
+package com.terraocean.plugin.bridge
+
+import io.ktor.http.cio.websocket.send
+import kotlinx.coroutines.MainScope
+import kotlinx.coroutines.launch
+
+fun reportPlayerActivity(username: String, activity: Long) {
+    MainScope().launch {
+        webSocketSession.send("active $username $activity")
+    }
+}

KotlinPlugin/src/main/kotlin/com/terraocean/plugin/bridge/WebSocket.kt

@@ -0,0 +1,84 @@
+package com.terraocean.plugin.bridge
+
+import com.terraocean.plugin.instance
+import io.ktor.client.HttpClient
+import io.ktor.client.features.websocket.DefaultClientWebSocketSession
+import io.ktor.client.features.websocket.WebSockets
+import io.ktor.client.features.websocket.ws
+import io.ktor.http.cio.websocket.Frame
+import io.ktor.http.cio.websocket.readText
+import io.ktor.util.KtorExperimentalAPI
+import org.bukkit.Bukkit
+
+@KtorExperimentalAPI
+val client = HttpClient {
+    install(WebSockets)
+}
+
+lateinit var webSocketSession: DefaultClientWebSocketSession
+
+@KtorExperimentalAPI
+suspend fun establishConnection() {
+    client.ws(
+        host = "localhost",
+        port = 8080,
+        path = "/ws"
+    ) {
+        webSocketSession = this
+        while (true) {
+            val message = incoming.receive()
+            if (message is Frame.Text) {
+                processMessage(message.readText().split(' '))
+            }
+        }
+    }
+}
+
+fun processMessage(msg: List<String>) {
+    when (msg[0]) {
+        "leave" -> {
+            Bukkit.getPlayer(msg[1])?.kickPlayer(
+                instance.config.getString("voicechannel")
+            )
+        }
+        "vote" -> {
+            for (p in Bukkit.getOnlinePlayers()) {
+                p.sendMessage(
+                    instance.config.getString("vote.new") ?: "Message not found: vote.new"
+                )
+            }
+        }
+        "votewarn" -> {
+            Bukkit.getPlayer(msg[1])?.sendMessage(
+                instance.config.getString("vote.warn") ?: "Message not found: vote.warn"
+            )
+        }
+        "votetimeout" -> {
+            Bukkit.getPlayer(msg[1])?.kickPlayer(
+                instance.config.getString("vote.timeout") ?: "Message not found: vote.timeout"
+            )
+        }
+        "kick" -> {
+            Bukkit.getPlayer(msg[1])?.kickPlayer(
+                instance.config.getString("kick.votekick") ?: "Message not found: kick.votekick"
+            )
+        }
+        "whitelistadd" -> {
+            instance.server.run {
+                getOfflinePlayer(msg[1]).isWhitelisted = true
+            }
+        }
+        "whitelistremove" -> {
+            instance.server.run {
+                getPlayer(msg[1])?.kickPlayer(
+                    instance.config.getString("kick.removedFromWhitelist") ?:
+                        "Message not found: kick.removedFromWhitelist"
+                )
+                getOfflinePlayer(msg[1]).isWhitelisted = false
+            }
+        }
+        else -> instance.logger.warning(
+            "Potentially out of date plugin. Unknown message: " + msg.joinToString(" ")
+        )
+    }
+}

KotlinPlugin/src/main/kotlin/plugin.yml

@@ -0,0 +1,6 @@
+name: TerraOceanPlugin
+version: 0.0.0
+author: chanbakjsd
+main: com.terraocean.plugin.TerraOceanPlugin
+api-version: 1.14.4
+description: A simple plugin designed to enforce the rules of the TerraOcean server easier.