commit 804a49c6b22d337abc4b33569b127b2f6600ff3e Author: Elijah R Date: Tue Apr 30 21:33:33 2024 -0400 init diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..c1e48cd --- /dev/null +++ b/.gitignore @@ -0,0 +1,44 @@ +.gradle +build/ +!gradle/wrapper/gradle-wrapper.jar +!**/src/main/**/build/ +!**/src/test/**/build/ + +### IntelliJ IDEA ### +.idea/modules.xml +.idea/jarRepositories.xml +.idea/compiler.xml +.idea/libraries/ +*.iws +*.iml +*.ipr +out/ +!**/src/main/**/out/ +!**/src/test/**/out/ + +### Eclipse ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache +bin/ +!**/src/main/**/bin/ +!**/src/test/**/bin/ + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ + +### VS Code ### +.vscode/ + +### Mac OS ### +.DS_Store + +.idea/ \ No newline at end of file diff --git a/build.gradle.kts b/build.gradle.kts new file mode 100644 index 0000000..4f4dcc8 --- /dev/null +++ b/build.gradle.kts @@ -0,0 +1,21 @@ +plugins { + id("java") +} + +group = "dev.elijahr" +version = "1.0-SNAPSHOT" + +repositories { + mavenCentral() +} + +dependencies { + testImplementation(platform("org.junit:junit-bom:5.9.1")) + testImplementation("org.junit.jupiter:junit-jupiter") + implementation("org.java-websocket:Java-WebSocket:1.5.6") + implementation("org.apache.commons:commons-text:1.12.0") +} + +tasks.test { + useJUnitPlatform() +} \ No newline at end of file diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..249e583 Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..67b6e33 --- /dev/null +++ b/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,6 @@ +#Tue Apr 02 17:30:20 EDT 2024 +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/gradlew b/gradlew new file mode 100755 index 0000000..1b6c787 --- /dev/null +++ b/gradlew @@ -0,0 +1,234 @@ +#!/bin/sh + +# +# Copyright © 2015-2021 the original authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit + +APP_NAME="Gradle" +APP_BASE_NAME=${0##*/} + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | 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" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + +# Collect all arguments for the java command; +# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of +# shell script including quotes and variable substitutions, so put them in +# double quotes to make sure that they get re-expanded; and +# * put everything else in single quotes, so that it's not re-expanded. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -classpath "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/gradlew.bat b/gradlew.bat new file mode 100644 index 0000000..ac1b06f --- /dev/null +++ b/gradlew.bat @@ -0,0 +1,89 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem + +@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 Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@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" "-Xms64m" + +@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 execute + +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 execute + +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 + +: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 %* + +: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 diff --git a/settings.gradle.kts b/settings.gradle.kts new file mode 100644 index 0000000..ac9ee50 --- /dev/null +++ b/settings.gradle.kts @@ -0,0 +1,2 @@ +rootProject.name = "CollabVM4j" + diff --git a/src/main/java/dev/elijahr/CollabVM4j/ChatMessage.java b/src/main/java/dev/elijahr/CollabVM4j/ChatMessage.java new file mode 100644 index 0000000..48ac753 --- /dev/null +++ b/src/main/java/dev/elijahr/CollabVM4j/ChatMessage.java @@ -0,0 +1,10 @@ +package dev.elijahr.CollabVM4j; + +public class ChatMessage { + public String Username; + public String Message; + public ChatMessage(String username, String message) { + Username = username; + Message = message; + } +} diff --git a/src/main/java/dev/elijahr/CollabVM4j/CollabVMClient.java b/src/main/java/dev/elijahr/CollabVM4j/CollabVMClient.java new file mode 100644 index 0000000..0dbfd98 --- /dev/null +++ b/src/main/java/dev/elijahr/CollabVM4j/CollabVMClient.java @@ -0,0 +1,214 @@ +package dev.elijahr.CollabVM4j; + +import org.apache.commons.text.StringEscapeUtils; +import org.java_websocket.handshake.ServerHandshake; + +import javax.imageio.ImageIO; +import java.awt.image.BufferedImage; +import java.io.ByteArrayInputStream; +import java.io.IOException; +import java.net.URI; +import java.util.AbstractMap; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Base64; + +public class CollabVMClient { + // Private fields + private boolean _debug; + private URI _url; + private CollabVMEventHandler _eventHandler; + private CollabVMWebSocket _socket; + private AbstractMap.SimpleEntry[] _customHeaders; + private boolean _connected; + private boolean _connectedToNode; + private String _username; + private String _node; + private ArrayList _users = new ArrayList<>(); + private BufferedImage _framebuffer; + + // Constructor + @SuppressWarnings("unchecked") + public CollabVMClient(URI url, CollabVMEventHandler eventHandler) { + this(url, eventHandler, (AbstractMap.SimpleEntry[]) new AbstractMap.SimpleEntry[0]); + } + public CollabVMClient(URI url, CollabVMEventHandler eventHandler, AbstractMap.SimpleEntry[] customHeaders) { + this(url, eventHandler, customHeaders, false); + } + + public CollabVMClient(URI url, CollabVMEventHandler eventHandler, AbstractMap.SimpleEntry[] customHeaders, boolean debug) { + _debug = debug; + _connected = false; + _connectedToNode = false; + _username = null; + _node = null; + _url = url; + _framebuffer = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB); + _eventHandler = eventHandler; + _socket = new CollabVMWebSocket(_url, this); + _customHeaders = customHeaders; + for (AbstractMap.SimpleEntry header : _customHeaders) _socket.addHeader(header.getKey(), header.getValue()); + if (Arrays.stream(_customHeaders).noneMatch(h -> h.getKey().equalsIgnoreCase("origin"))) + _socket.addHeader("Origin", "https://computernewb.com"); + } + + + // Public methods + public void connect() { + _socket.connect(); + } + + // WebSocket event handlers + public void onWsOpen(ServerHandshake serverHandshake) { + _connected = true; + if (_username != null) + this.sendGuac("rename", this._username); + else + this.sendGuac("rename"); + if (this._node != null) + this.sendGuac("connect", this._node); + _eventHandler.OnOpen(); + + } + public void onWsMessage(String msg) { + String[] msgArr; + try { + msgArr = Guacutils.Decode(msg); + } catch (GuacamoleDecodeException ex) { + if (_debug) System.err.println("Error decoding instruction: " + ex.getMessage()); + return; + } + if (msgArr.length < 1) return; + if (_debug && !(msgArr[0].equals("png") || msgArr[0].equals("sync"))) + System.out.println("Received message: " + msg); + switch (msgArr[0]) { + case "nop": { + this.sendGuac("nop"); + break; + } + case "connect": { + switch (msgArr[1]) { + case "0": + _eventHandler.OnNodeConnectFailed(); + this._node = null; + break; + case "1": + _eventHandler.OnConnectedToNode(); + break; + } + break; + } + case "chat": { + if (msgArr.length > 3) { + // Chat history + ArrayList msgs = new ArrayList<>(); + for (int i = 1; i < msgArr.length; i += 2) { + msgs.add(new ChatMessage(msgArr[i], StringEscapeUtils.unescapeHtml4(msgArr[i + 1]))); + } + _eventHandler.OnChatHistory(msgs.toArray(new ChatMessage[0])); + } else { + // Chat message + _eventHandler.OnChatMessage(new ChatMessage(msgArr[1], StringEscapeUtils.unescapeHtml4(msgArr[2]))); + } + break; + } + case "adduser": { + for (int i = 2; i < msgArr.length; i += 2) { + String username = msgArr[i]; + int rank = Integer.parseInt(msgArr[i + 1]); + _users.removeIf(u -> u.Username.equals(username)); + User user = new User(username, rank); + _users.add(user); + _eventHandler.OnUserJoined(user); + } + break; + } + case "remuser": { + for (int i = 2; i < msgArr.length; i++) { + String username = msgArr[i]; + User user = _users.stream().filter(u -> u.Username.equals(username)).findFirst().orElse(null); + if (user == null) continue; + this._users.remove(user); + _eventHandler.OnUserLeft(user); + } + break; + } + case "rename": { + if (msgArr[1].equals("0")) { + // Self renamed + User user = _users.stream().filter(u -> u.Username.equals(_username)).findFirst().orElse(null); + if (user != null) { + user.Username = msgArr[3]; + } + _username = msgArr[3]; + _eventHandler.OnRenamed(_username); + } else { + // User renamed + User user = _users.stream().filter(u -> u.Username.equals(msgArr[2])).findFirst().orElse(null); + if (user != null) { + user.Username = msgArr[3]; + } + _eventHandler.OnUserRenamed(msgArr[2], msgArr[3], user); + } + break; + } + case "size": { + if (!msgArr[1].equals("0")) return; + int width = Integer.parseInt(msgArr[2]); + int height = Integer.parseInt(msgArr[3]); + _framebuffer = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); + _eventHandler.OnScreenSize(width, height); + break; + } + case "png": { + if (!(msgArr[1].equals("0") && msgArr[2].equals("0"))) return; + ByteArrayInputStream stream = new ByteArrayInputStream(Base64.getDecoder().decode(msgArr[5])); + BufferedImage rect; + try { + rect = ImageIO.read(stream); + } catch (IOException e) { + return; + } + int x = Integer.parseInt(msgArr[3]); + int y = Integer.parseInt(msgArr[4]); + _framebuffer.getGraphics().drawImage(rect, x, y, null); + _eventHandler.OnRectangle(x, y, rect); + break; + } + } + } + public void onWsClose(int code, String reason, boolean remote) { + _connectedToNode = false; + _connected = false; + _eventHandler.OnConnectionClosed(); + } + public void onWsError(Exception ex) { + _connected = false; + } + public void sendGuac(String... args) { + if (_debug) System.out.println("Sending message: " + Guacutils.Encode(args)); + _socket.send(Guacutils.Encode(args)); + } + // Getters and setters + public void setUsername(String username) { + if (_connected) + this.sendGuac("rename", username); + // Don't set the username if we're connected until the server confirms the rename + else + this._username = username; + } + public String getUsername() { return this._username; } + public void setNode(String node) { + if (this._node != null) throw new RuntimeException("Cannot switch nodes after connecting. Disconnect the client first."); + if (_connected) + this.sendGuac("connect", node); + this._node = node; + } + public String getNode() { return this._node; } + public User[] getUsers() { return this._users.toArray(new User[0]); } + public BufferedImage getFramebuffer() { + BufferedImage img = new BufferedImage(_framebuffer.getWidth(), _framebuffer.getHeight(), BufferedImage.TYPE_INT_ARGB); + img.getGraphics().drawImage(_framebuffer, 0, 0, null); + return img; + } +} diff --git a/src/main/java/dev/elijahr/CollabVM4j/CollabVMEventHandler.java b/src/main/java/dev/elijahr/CollabVM4j/CollabVMEventHandler.java new file mode 100644 index 0000000..dcff89b --- /dev/null +++ b/src/main/java/dev/elijahr/CollabVM4j/CollabVMEventHandler.java @@ -0,0 +1,22 @@ +package dev.elijahr.CollabVM4j; + +import java.awt.image.BufferedImage; + +public interface CollabVMEventHandler { + default void OnChatMessage(ChatMessage msg) {} + default void OnChatHistory(ChatMessage[] msgs) {} + default void OnOpen() {} + default void OnConnectedToNode() {} + default void OnNodeConnectFailed() {} + default void OnRectangle(int x, int y, BufferedImage rect) {} + default void OnScreenSize(int width, int height) {} + default void OnRenamed(String newUsername) {}; + default void OnUserRenamed(String oldName, String newName, User user) {} + default void OnUserJoined(User user) {} + default void OnUserLeft(User user) {} + default void OnVoteUpdate() {} + default void OnVoteEnded() {} + default void OnVoteCooldown(int cooldown) {} + default void OnTurnUpdate() {} + default void OnConnectionClosed() {} +} diff --git a/src/main/java/dev/elijahr/CollabVM4j/CollabVMWebSocket.java b/src/main/java/dev/elijahr/CollabVM4j/CollabVMWebSocket.java new file mode 100644 index 0000000..791690d --- /dev/null +++ b/src/main/java/dev/elijahr/CollabVM4j/CollabVMWebSocket.java @@ -0,0 +1,42 @@ +package dev.elijahr.CollabVM4j; + +import org.java_websocket.client.WebSocketClient; +import org.java_websocket.drafts.Draft_6455; +import org.java_websocket.handshake.ServerHandshake; +import org.java_websocket.protocols.Protocol; + +import java.net.URI; +import java.util.Collections; + +class CollabVMWebSocket extends WebSocketClient { + private CollabVMClient _owner; + + public CollabVMWebSocket(URI uri, CollabVMClient owner) { + super( + uri, + // why the fuck is it like this i hate java + new Draft_6455(Collections.emptyList(), Collections.singletonList(new Protocol("guacamole"))) + ); + _owner = owner; + } + @Override + public void onOpen(ServerHandshake serverHandshake) { + _owner.onWsOpen(serverHandshake); + } + + @Override + public void onMessage(String s) { + _owner.onWsMessage(s); + } + + @Override + public void onClose(int i, String s, boolean b) { + _owner.onWsClose(i,s,b); + } + + @Override + public void onError(Exception e) { + _owner.onWsError(e); + } + +} diff --git a/src/main/java/dev/elijahr/CollabVM4j/GuacamoleDecodeException.java b/src/main/java/dev/elijahr/CollabVM4j/GuacamoleDecodeException.java new file mode 100644 index 0000000..20913a9 --- /dev/null +++ b/src/main/java/dev/elijahr/CollabVM4j/GuacamoleDecodeException.java @@ -0,0 +1,7 @@ +package dev.elijahr.CollabVM4j; + +public class GuacamoleDecodeException extends RuntimeException { + public GuacamoleDecodeException(String err) { + super("Malformed guacamole instruction: " + err); + } +} diff --git a/src/main/java/dev/elijahr/CollabVM4j/Guacutils.java b/src/main/java/dev/elijahr/CollabVM4j/Guacutils.java new file mode 100644 index 0000000..7d09c01 --- /dev/null +++ b/src/main/java/dev/elijahr/CollabVM4j/Guacutils.java @@ -0,0 +1,46 @@ +package dev.elijahr.CollabVM4j; + +import java.util.ArrayList; + +public class Guacutils { + public static String Encode(String... args) { + StringBuilder outStr = new StringBuilder(); + for (int i = 0; i < args.length; i++) { + outStr.append(args[i].length()); + outStr.append('.'); + outStr.append(args[i]); + if (i != args.length - 1) outStr.append(','); + } + outStr.append(';'); + return outStr.toString(); + } + + public static String[] Decode(String instr) { + if (instr.charAt(instr.length() - 1) != ';') { + throw new GuacamoleDecodeException("Not properly terminated"); + } + ArrayList segments = new ArrayList(); + int pos = 0; + while (pos < instr.length() - 1) { + int dotPos = instr.indexOf('.', pos + 1); + if (dotPos == -1) { + throw new GuacamoleDecodeException("Length delimiter not found"); + } + String lenStr = instr.substring(pos, dotPos); + int len; + try { + len = Integer.parseInt(lenStr, 10); + } catch (NumberFormatException ex) { + throw new GuacamoleDecodeException("Invalid segment length"); + } + String segment = instr.substring(dotPos + 1, dotPos + len + 1); + segments.add(segment); + if (instr.charAt(dotPos + len + 1) != ',' && dotPos + len + 2 != instr.length()) { + throw new GuacamoleDecodeException("Invalid section delimiter"); + } + pos = dotPos + len + 2; + } + return segments.toArray(new String[0]); + } +} + diff --git a/src/main/java/dev/elijahr/CollabVM4j/Rank.java b/src/main/java/dev/elijahr/CollabVM4j/Rank.java new file mode 100644 index 0000000..2ad56bb --- /dev/null +++ b/src/main/java/dev/elijahr/CollabVM4j/Rank.java @@ -0,0 +1,9 @@ +package dev.elijahr.CollabVM4j; + +// java enums suck so we have to use a class instead +public class Rank { + public final int Unregistered = 0; + public final int Registered = 1; + public final int Admin = 2; + public final int Moderator = 3; +} diff --git a/src/main/java/dev/elijahr/CollabVM4j/User.java b/src/main/java/dev/elijahr/CollabVM4j/User.java new file mode 100644 index 0000000..32bd822 --- /dev/null +++ b/src/main/java/dev/elijahr/CollabVM4j/User.java @@ -0,0 +1,10 @@ +package dev.elijahr.CollabVM4j; + +public class User { + public String Username; + public int Rank; + public User(String username, int rank) { + Username = username; + Rank = rank; + } +}