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CommandManager/com/nemez/cmdmgr/util/Executable.java
2016-10-16 10:26:15 +02:00

405 lines
13 KiB
Java

package com.nemez.cmdmgr.util;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.logging.Level;
import org.bukkit.Bukkit;
import org.bukkit.command.CommandMap;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
import com.nemez.cmdmgr.Command;
import com.nemez.cmdmgr.CommandManager;
import com.nemez.cmdmgr.component.BooleanComponent;
import com.nemez.cmdmgr.component.ByteComponent;
import com.nemez.cmdmgr.component.ConstantComponent;
import com.nemez.cmdmgr.component.DoubleComponent;
import com.nemez.cmdmgr.component.FloatComponent;
import com.nemez.cmdmgr.component.ICommandComponent;
import com.nemez.cmdmgr.component.IntegerComponent;
import com.nemez.cmdmgr.component.LongComponent;
import com.nemez.cmdmgr.component.OptionalComponent;
import com.nemez.cmdmgr.component.ShortComponent;
import com.nemez.cmdmgr.component.StringComponent;
public class Executable extends org.bukkit.command.Command {
private ArrayList<ExecutableDefinition> commands;
private ArrayList<HelpPageCommand[]> help;
private String name;
private JavaPlugin plugin;
public Executable(String name, ArrayList<HelpPageCommand[]> help) {
super(name);
this.help = help;
this.name = name;
this.commands = new ArrayList<ExecutableDefinition>();
}
public void register(ArrayList<Method> methods, JavaPlugin plugin, Object methodContainer) {
for (HelpPageCommand[] page : help) {
for (HelpPageCommand cmd : page) {
if (cmd != null) {
processLine(cmd.usage.split("\\ "), cmd.permission, cmd.method, methods, methodContainer, plugin, cmd.type);
String newUsage = "";
String buffer = "";
String typeBuffer = "";
boolean ignore = false;
boolean toBuffer = false;
for (char c : cmd.usage.toCharArray()) {
if (c == '<') {
toBuffer = true;
}else if (c == ':') {
toBuffer = false;
ignore = true;
}else if (c == '>') {
ignore = false;
if (typeBuffer.equals("flag")) {
newUsage += '[' + buffer + (CommandManager.debugHelpMenu ? ':' + typeBuffer : "") + ']';
}else{
newUsage += '<' + buffer + (CommandManager.debugHelpMenu ? ':' + typeBuffer : "") + '>';
}
buffer = "";
typeBuffer = "";
}else{
if (toBuffer) {
buffer += c;
}else if (ignore) {
typeBuffer += c;
}else{
newUsage += c;
}
}
}
cmd.usage = newUsage;
}
}
}
this.plugin = plugin;
try {
final Field cmdMap = Bukkit.getServer().getClass().getDeclaredField("commandMap");
cmdMap.setAccessible(true);
CommandMap map = (CommandMap) cmdMap.get(Bukkit.getServer());
map.register(name, this);
} catch (Exception e) {
plugin.getLogger().log(Level.SEVERE, "Failed to register command '" + name + "'!");
e.printStackTrace();
}
if (CommandManager.errors) {
plugin.getLogger().log(Level.WARNING, "There were parser errors, some commands may not function properly!");
CommandManager.errors = false;
}
}
private void processLine(String[] line, String permission, String method, ArrayList<Method> methods, Object methodContainer, JavaPlugin plugin, Type etype) {
ArrayList<ICommandComponent> command = new ArrayList<ICommandComponent>();
if (method == null && line[1].equals("help")) {
command.add(new ConstantComponent("help"));
IntegerComponent pageID = new IntegerComponent();
pageID.argName = "page";
command.add(pageID);
ExecutableDefinition def = new ExecutableDefinition(command, null, permission, null, methodContainer, Type.BOTH);
commands.add(def);
return;
}
HashMap<Integer, ICommandComponent> methodParams = new HashMap<Integer, ICommandComponent>();
method = method.trim() + " ";
String[] methodArray = method.split(" ");
Method target = null;
ArrayList<Integer> links = new ArrayList<Integer>();
for (String s : line) {
if (s.contains("/")) {
continue;
}
if (s.contains(":")) {
String[] type = s.split(":");
String paramName = "";
switch (type[1].substring(0, type[1].length() - 1)) {
case "i8":
ByteComponent comp1 = new ByteComponent();
comp1.argName = type[0].substring(1);
paramName = comp1.argName;
command.add(comp1);
break;
case "i16":
ShortComponent comp2 = new ShortComponent();
comp2.argName = type[0].substring(1);
paramName = comp2.argName;
command.add(comp2);
break;
case "i32":
IntegerComponent comp3 = new IntegerComponent();
comp3.argName = type[0].substring(1);
paramName = comp3.argName;
command.add(comp3);
break;
case "i64":
LongComponent comp4 = new LongComponent();
comp4.argName = type[0].substring(1);
paramName = comp4.argName;
command.add(comp4);
break;
case "fp32":
FloatComponent comp5 = new FloatComponent();
comp5.argName = type[0].substring(1);
paramName = comp5.argName;
command.add(comp5);
break;
case "fp64":
DoubleComponent comp6 = new DoubleComponent();
comp6.argName = type[0].substring(1);
paramName = comp6.argName;
command.add(comp6);
break;
case "str":
StringComponent comp7 = new StringComponent();
comp7.argName = type[0].substring(1).replace("...", "");
comp7.infinite = type[0].substring(1).contains("...");
paramName = comp7.argName;
command.add(comp7);
break;
case "bool":
BooleanComponent comp8 = new BooleanComponent();
comp8.argName = type[0].substring(1);
paramName = comp8.argName;
command.add(comp8);
break;
case "flag":
OptionalComponent comp9 = new OptionalComponent();
comp9.argName = type[0].substring(1);
paramName = comp9.argName;
command.add(comp9);
break;
default:
return;
}
int index = 0;
for (int i = 1; i < methodArray.length; i++) {
if (methodArray[i] != null && !methodArray[i].trim().equals("")) {
if (methodArray[i].trim().equals(paramName)) {
methodParams.put(index, command.get(command.size() - 1));
links.add(index);
break;
}
index++;
}
}
}else{
command.add(new ConstantComponent(s));
}
}
for (Method m : methods) {
Command[] annotations = m.getAnnotationsByType(Command.class);
if (annotations == null || annotations.length != 1) {
plugin.getLogger().log(Level.WARNING, "Invalid method (" + methodArray[0] + ")");
CommandManager.errors = true;
return;
}else{
if (annotations[0].hook().equals(methodArray[0])) {
Class<?>[] params = m.getParameterTypes();
if (params.length -1 != methodParams.size()) {
plugin.getLogger().log(Level.WARNING, "Invalid method (" + methodArray[0] + "): Arguments don't match");
CommandManager.errors = true;
return;
}else{
for (int i = 0; i < params.length; i++) {
if (i == 0) {
if (params[0] != CommandSender.class) {
plugin.getLogger().log(Level.WARNING, "Invalid method (" + methodArray[0] + "): First argument is not CommandSender");
CommandManager.errors = true;
return;
}
}else{
ICommandComponent comp = methodParams.get(i - 1);
if (comp instanceof ByteComponent && params[i] == byte.class) {
}else if (comp instanceof ShortComponent && params[i] == short.class) {
}else if (comp instanceof IntegerComponent && params[i] == int.class) {
}else if (comp instanceof LongComponent && params[i] == long.class) {
}else if (comp instanceof FloatComponent && params[i] == float.class) {
}else if (comp instanceof DoubleComponent && params[i] == double.class) {
}else if (comp instanceof StringComponent && params[i] == String.class) {
}else if (comp instanceof BooleanComponent && params[i] == boolean.class) {
}else if (comp instanceof OptionalComponent && params[i] == boolean.class) {
}else{
plugin.getLogger().log(Level.WARNING, "Invalid method (" + methodArray[0] + "): Invalid method arguments");
CommandManager.errors = true;
return;
}
}
}
target = m;
break;
}
}
}
}
if (target == null) {
plugin.getLogger().log(Level.WARNING, "Invalid method (" + methodArray[0] + "): Method not found");
CommandManager.errors = true;
return;
}
if (etype == null) {
etype = Type.BOTH;
}
ExecutableDefinition def = new ExecutableDefinition(command, links, permission, target, methodContainer, etype);
commands.add(def);
}
@Override
public boolean execute(CommandSender sender, String name, String[] args_) {
char[] rawArgs = (String.join(" ", args_) + ' ').toCharArray();
int argSize = 0;
char last = '\0';
boolean inString = false;
for (char c : rawArgs) {
if (c == '"') {
if (last != '\\') {
inString = !inString;
}
}else if (c == ' ' && !inString) {
argSize++;
}
last = c;
}
last = '\0';
String[] args = new String[argSize];
String buffer = "";
int index = 0;
for (char c : rawArgs) {
if (c == '"') {
if (last != '\\') {
inString = !inString;
}else{
buffer = buffer.substring(0, buffer.length() - 1) + '"';
}
}else if (c == ' ' && !inString) {
args[index] = buffer;
buffer = "";
index++;
}else{
buffer += c;
}
last = c;
}
ArrayList<ExecutableDefinition> defs = new ArrayList<ExecutableDefinition>();
defs.addAll(commands);
defLoop: for (int j = 0; j < defs.size(); j++) {
int i = 0, k = 0;
for (; i < args.length; i++, k++) {
if (!defs.get(j).valid(k, args[i])) {
if (!defs.get(j).isOptional(k)) {
defs.remove(j);
j--;
continue defLoop;
}else{
i--;
continue;
}
}
}
if (k != defs.get(j).getLength(k)) {
defs.remove(j);
j--;
}
}
if (args.length == 0 || defs.size() == 0) {
printPage(sender, 1);
}else{
ExecutableDefinition def = defs.get(0);
for (ExecutableDefinition d : defs) {
if (d.isHelp() && args[0].equals("help")) {
try {
int page = Integer.parseInt(args[1]);
printPage(sender, page);
} catch (Exception e) {
printPage(sender, 1);
}
return true;
}
}
if (def.getPermission() != null && !sender.hasPermission(def.getPermission())) {
sender.sendMessage(CommandManager.noPermissionFormatting + "You do not have permission to execute this command.");
return true;
}
if (def.getExecType() == Type.PLAYER) {
if (!(sender instanceof Player)) {
sender.sendMessage(CommandManager.notAllowedFormatting + "Only players are allowed to run this command.");
return true;
}
}else if (def.getExecType() == Type.CONSOLE) {
if (sender instanceof Player) {
sender.sendMessage(CommandManager.notAllowedFormatting + "Only console is allowed to run this command.");
return true;
}
}else if (def.getExecType() == Type.NOBODY) {
sender.sendMessage(CommandManager.notAllowedFormatting + "Nobody can run this command.");
return true;
}
ArrayList<Object> arguments = new ArrayList<Object>();
for (int i = 0, j = 0; i < args.length; i++, j++) {
if (def.isArgument(j)) {
if (def.valid(j, args[i])) {
arguments.add(def.get(j, args[i]));
}else if (def.isOptional(j)) {
arguments.add(false);
i--;
}
}
}
Object[] linkedArgs = new Object[def.getNumOfArgs() + 1];
for (int i = 0; i < arguments.size(); i++) {
int link = def.getLink(i) + 1;
if (linkedArgs[link] != null) {
linkedArgs[link] = linkedArgs[link].toString() + " " + arguments.get(i).toString();
}else{
linkedArgs[link] = arguments.get(i);
}
}
if (!def.invoke(linkedArgs, sender, plugin)) {
printPage(sender, 1);
}
}
return true;
}
private void printPage(CommandSender sender, int page) {
page--;
if (page < 0 || page >= help.size()) {
sender.sendMessage(CommandManager.helpInvalidPageFormatting + "Non-existant page (" + (page + 1) + ").\nThere are " + help.size() + " pages.");
}else{
HelpPageCommand[] pageData = help.get(page);
sender.sendMessage(CommandManager.helpPageHeaderFormatting + "### Help Page " + (page + 1) + "/" + (help.size()) + " ###");
for (HelpPageCommand c : pageData) {
if (c != null) {
if (c.type == null || c.type == Type.BOTH || (c.type == Type.CONSOLE && !(sender instanceof Player)) || (c.type == Type.PLAYER && sender instanceof Player)) {
if (c.permission == null || sender.hasPermission(c.permission)) {
sender.sendMessage(CommandManager.helpUsageFormatting + c.usage);
sender.sendMessage(CommandManager.helpDescriptionFormatting + c.description);
}
}
}
}
}
}
}