mirror of
https://github.com/NoCheatPlus/NoCheatPlus.git
synced 2024-10-06 02:17:25 +02:00
Alter how command lists are interpreted. Might fix some issues.
Details: * Only trim commands from the left side (both on feed and check). * Ensure versions with and without leading '/' are fed into trees. * Move methods to feed CharPrefixTree from configs to CommandUtil. Potentially fixes (untested): * Only deny the sub-commands for a prefix, example: feed 'version ' to consoleonly, in order to allow 'version' but not 'version NoCheatplus'. * Might fix some plugin/server specific prefixes not being detected, example: feed "/version" and expect "/bukkit:version" to be blocked.
This commit is contained in:
asofold
parent
878848c4d1
commit
ea5b249197
@ -243,4 +243,37 @@ public class StringUtil {
|
||||
return n;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get a version of a String with all leading whitespace removed.
|
||||
*
|
||||
* @param input
|
||||
* @return String with leading whitespace removed. Returns the original
|
||||
* reference, if there is no leading whitespace.
|
||||
*/
|
||||
public static final String leftTrim(final String input) {
|
||||
if (input == null) {
|
||||
return null;
|
||||
}
|
||||
final int len = input.length();
|
||||
int beginIndex = 0;
|
||||
for (int i = 0; i < len; i++) {
|
||||
if (Character.isWhitespace(input.charAt(i))) {
|
||||
++beginIndex;
|
||||
}
|
||||
else {
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (beginIndex > 0) {
|
||||
if (beginIndex >= len) {
|
||||
return "";
|
||||
} else {
|
||||
return input.substring(beginIndex);
|
||||
}
|
||||
}
|
||||
else {
|
||||
return input;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -91,4 +91,26 @@ public class TestStringUtil {
|
||||
assertMaximumStackTraceLength(1000, 50, true);
|
||||
}
|
||||
|
||||
private void testLeftTrim(String input, String expectedResult) {
|
||||
String result = StringUtil.leftTrim(input);
|
||||
if (!expectedResult.equals(result)) {
|
||||
fail("Expect leftTrim for '" + input + "' to return '" + expectedResult + "', got instead: '" + result + "'.");
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testLeftTrim() {
|
||||
if (StringUtil.leftTrim(null) != null) {
|
||||
fail("Expect leftTrim to return null for null input, got instead: '" + StringUtil.leftTrim(null) + "'.");
|
||||
}
|
||||
for (String[] spec : new String[][]{
|
||||
{"", ""},
|
||||
{" \t", ""},
|
||||
{" TEST", "TEST"},
|
||||
{"\t\n TEST", "TEST"},
|
||||
{" TEST ", "TEST "}
|
||||
}) {
|
||||
testLeftTrim(spec[0], spec[1]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -1,7 +1,6 @@
|
||||
package fr.neatmonster.nocheatplus.checks.chat;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Collection;
|
||||
import java.util.List;
|
||||
|
||||
import org.bukkit.command.Command;
|
||||
@ -22,6 +21,7 @@ import fr.neatmonster.nocheatplus.components.JoinLeaveListener;
|
||||
import fr.neatmonster.nocheatplus.config.ConfPaths;
|
||||
import fr.neatmonster.nocheatplus.config.ConfigFile;
|
||||
import fr.neatmonster.nocheatplus.config.ConfigManager;
|
||||
import fr.neatmonster.nocheatplus.utilities.StringUtil;
|
||||
import fr.neatmonster.nocheatplus.utilities.TickTask;
|
||||
import fr.neatmonster.nocheatplus.utilities.ds.prefixtree.SimpleCharPrefixTree;
|
||||
|
||||
@ -63,49 +63,24 @@ public class ChatListener extends CheckListener implements INotifyReload, JoinLe
|
||||
/** Commands not to be executed in-game. */
|
||||
private final SimpleCharPrefixTree consoleOnlyCommands = new SimpleCharPrefixTree();
|
||||
|
||||
public ChatListener(){
|
||||
super(CheckType.CHAT);
|
||||
ConfigFile config = ConfigManager.getConfigFile();
|
||||
initFilters(config);
|
||||
// (text inits in constructor.)
|
||||
public ChatListener() {
|
||||
super(CheckType.CHAT);
|
||||
ConfigFile config = ConfigManager.getConfigFile();
|
||||
initFilters(config);
|
||||
// (text inits in constructor.)
|
||||
}
|
||||
|
||||
/**
|
||||
* Clear tree and feed lower case. Add versions with "/" if missing.
|
||||
* @param tree
|
||||
* @param inputs
|
||||
*/
|
||||
private void feedCommands(SimpleCharPrefixTree tree, Collection<String> inputs){
|
||||
tree.clear();
|
||||
tree.feedAll(inputs, false, true);
|
||||
for (String input : inputs){
|
||||
if (!input.trim().startsWith("/")){
|
||||
tree.feed("/" + input.trim().toLowerCase());
|
||||
}
|
||||
}
|
||||
private void initFilters(ConfigFile config) {
|
||||
CommandUtil.feedCommands(consoleOnlyCommands, config, ConfPaths.PROTECT_COMMANDS_CONSOLEONLY_CMDS, true);
|
||||
CommandUtil.feedCommands(chatCommands, config, ConfPaths.CHAT_COMMANDS_HANDLEASCHAT, true);
|
||||
CommandUtil.feedCommands(commandExclusions, config, ConfPaths.CHAT_COMMANDS_EXCLUSIONS, true);
|
||||
}
|
||||
|
||||
/**
|
||||
* Read string list from config and call feedCommands(tree, list).
|
||||
* @param tree
|
||||
* @param config
|
||||
* @param configPath
|
||||
*/
|
||||
private void feedCommands(SimpleCharPrefixTree tree, ConfigFile config, String configPath){
|
||||
feedCommands(tree, config.getStringList(configPath));
|
||||
}
|
||||
|
||||
private void initFilters(ConfigFile config) {
|
||||
feedCommands(consoleOnlyCommands, config, ConfPaths.PROTECT_COMMANDS_CONSOLEONLY_CMDS);
|
||||
feedCommands(chatCommands, config, ConfPaths.CHAT_COMMANDS_HANDLEASCHAT);
|
||||
feedCommands(commandExclusions, config, ConfPaths.CHAT_COMMANDS_EXCLUSIONS);
|
||||
}
|
||||
|
||||
@EventHandler(priority=EventPriority.MONITOR)
|
||||
public void onPlayerChangedWorld(final PlayerChangedWorldEvent event){
|
||||
// Tell TickTask to update cached permissions.
|
||||
@EventHandler(priority=EventPriority.MONITOR)
|
||||
public void onPlayerChangedWorld(final PlayerChangedWorldEvent event) {
|
||||
// Tell TickTask to update cached permissions.
|
||||
TickTask.requestPermissionUpdate(event.getPlayer().getName(), CheckType.CHAT);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* We listen to PlayerChat events for obvious reasons.
|
||||
@ -126,13 +101,13 @@ public class ChatListener extends CheckListener implements INotifyReload, JoinLe
|
||||
|
||||
// First the color check.
|
||||
if (!alreadyCancelled && color.isEnabled(player)) {
|
||||
event.setMessage(color.check(player, event.getMessage(), false));
|
||||
event.setMessage(color.check(player, event.getMessage(), false));
|
||||
}
|
||||
|
||||
// Then the no chat check.
|
||||
// TODO: isMainThread: Could consider event.isAsync ?
|
||||
if (textChecks(player, event.getMessage(), false, alreadyCancelled)) {
|
||||
event.setCancelled(true);
|
||||
event.setCancelled(true);
|
||||
}
|
||||
|
||||
}
|
||||
@ -150,67 +125,67 @@ public class ChatListener extends CheckListener implements INotifyReload, JoinLe
|
||||
// Tell TickTask to update cached permissions.
|
||||
TickTask.requestPermissionUpdate(player.getName(), CheckType.CHAT);
|
||||
|
||||
final ChatConfig cc = ChatConfig.getConfig(player);
|
||||
final ChatConfig cc = ChatConfig.getConfig(player);
|
||||
|
||||
// Checks that replace parts of the message (color).
|
||||
if (color.isEnabled(player)){
|
||||
event.setMessage(color.check(player, event.getMessage(), true));
|
||||
if (color.isEnabled(player)) {
|
||||
event.setMessage(color.check(player, event.getMessage(), true));
|
||||
}
|
||||
|
||||
// Trim is necessary because the server accepts leading spaces with commands.
|
||||
// Left-trim is necessary because the server accepts leading spaces with commands.
|
||||
final String message = event.getMessage();
|
||||
final String lcMessage = message.trim().toLowerCase();
|
||||
final String lcMessage = StringUtil.leftTrim(message).toLowerCase();
|
||||
// TODO: Remove bukkit: etc.
|
||||
|
||||
final String[] split = lcMessage.split(" ", 2);
|
||||
final String alias = split[0].substring(1);
|
||||
final Command command = CommandUtil.getCommand(alias);
|
||||
final Command command = CommandUtil.getCommand(alias);
|
||||
|
||||
final List<String> messageVars = new ArrayList<String>(); // Could as well use an array and allow null on input of SimpleCharPrefixTree.
|
||||
messageVars.add(lcMessage);
|
||||
String checkMessage = message; // Message to run chat checks on.
|
||||
if (command != null){
|
||||
messageVars.add("/" + command.getLabel().toLowerCase() + (split.length > 1 ? (" " + split[1]) : ""));
|
||||
}
|
||||
if (alias.indexOf(":") != -1) {
|
||||
final int index = message.indexOf(":") + 1;
|
||||
if (index < message.length()) {
|
||||
checkMessage = message.substring(index);
|
||||
messageVars.add(checkMessage.toLowerCase());
|
||||
}
|
||||
final List<String> messageVars = new ArrayList<String>(); // Could as well use an array and allow null on input of SimpleCharPrefixTree.
|
||||
messageVars.add(lcMessage);
|
||||
String checkMessage = message; // Message to run chat checks on.
|
||||
if (command != null) {
|
||||
messageVars.add("/" + command.getLabel().toLowerCase() + (split.length > 1 ? (" " + split[1]) : ""));
|
||||
}
|
||||
// Prevent commands from being used by players (e.g. /op /deop /reload).
|
||||
if (cc.consoleOnlyCheck && consoleOnlyCommands.hasAnyPrefixWords(messageVars)) {
|
||||
if (command == null || command.testPermission(player)){
|
||||
player.sendMessage(cc.consoleOnlyMessage);
|
||||
}
|
||||
event.setCancelled(true);
|
||||
return;
|
||||
}
|
||||
|
||||
// Handle as chat or command.
|
||||
if (chatCommands.hasAnyPrefixWords(messageVars)){
|
||||
// Treat as chat.
|
||||
// TODO: Consider requesting permission updates on these, for consistency.
|
||||
// TODO: Cut off the command ?.
|
||||
if (textChecks(player, checkMessage, true, false)) {
|
||||
event.setCancelled(true);
|
||||
if (alias.indexOf(":") != -1) {
|
||||
final int index = message.indexOf(":") + 1;
|
||||
if (index < message.length()) {
|
||||
checkMessage = message.substring(index);
|
||||
messageVars.add(checkMessage.toLowerCase());
|
||||
}
|
||||
}
|
||||
else if (!commandExclusions.hasAnyPrefixWords(messageVars)){
|
||||
// Prevent commands from being used by players (e.g. /op /deop /reload).
|
||||
if (cc.consoleOnlyCheck && consoleOnlyCommands.hasAnyPrefixWords(messageVars)) {
|
||||
if (command == null || command.testPermission(player)) {
|
||||
player.sendMessage(cc.consoleOnlyMessage);
|
||||
}
|
||||
event.setCancelled(true);
|
||||
return;
|
||||
}
|
||||
|
||||
// Handle as chat or command.
|
||||
if (chatCommands.hasAnyPrefixWords(messageVars)) {
|
||||
// Treat as chat.
|
||||
// TODO: Consider requesting permission updates on these, for consistency.
|
||||
// TODO: Cut off the command ?.
|
||||
if (textChecks(player, checkMessage, true, false)) {
|
||||
event.setCancelled(true);
|
||||
}
|
||||
}
|
||||
else if (!commandExclusions.hasAnyPrefixWords(messageVars)) {
|
||||
// Treat as command.
|
||||
if (commands.isEnabled(player) && commands.check(player, checkMessage, captcha)) {
|
||||
event.setCancelled(true);
|
||||
event.setCancelled(true);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
private boolean textChecks(final Player player, final String message, final boolean isMainThread, final boolean alreadyCancelled) {
|
||||
return text.isEnabled(player) && text.check(player, message, captcha, isMainThread, alreadyCancelled);
|
||||
return text.isEnabled(player) && text.check(player, message, captcha, isMainThread, alreadyCancelled);
|
||||
}
|
||||
|
||||
/**
|
||||
/**
|
||||
* We listen to this type of events to prevent spambots from login to the server.
|
||||
*
|
||||
* @param event
|
||||
@ -219,7 +194,7 @@ public class ChatListener extends CheckListener implements INotifyReload, JoinLe
|
||||
@EventHandler(
|
||||
priority = EventPriority.NORMAL)
|
||||
public void onPlayerLogin(final PlayerLoginEvent event) {
|
||||
if (event.getResult() != Result.ALLOWED) return;
|
||||
if (event.getResult() != Result.ALLOWED) return;
|
||||
final Player player = event.getPlayer();
|
||||
final ChatConfig cc = ChatConfig.getConfig(player);
|
||||
final ChatData data = ChatData.getData(player);
|
||||
@ -230,43 +205,43 @@ public class ChatListener extends CheckListener implements INotifyReload, JoinLe
|
||||
TickTask.updatePermissions(); // TODO: This updates ALL... something more efficient ?
|
||||
|
||||
// Reset captcha of player if needed.
|
||||
synchronized(data){
|
||||
synchronized(data) {
|
||||
captcha.resetCaptcha(cc, data);
|
||||
}
|
||||
// Fast relog check.
|
||||
if (relog.isEnabled(player) && relog.unsafeLoginCheck(player, cc, data)){
|
||||
event.disallow(Result.KICK_OTHER, cc.relogKickMessage);
|
||||
if (relog.isEnabled(player) && relog.unsafeLoginCheck(player, cc, data)) {
|
||||
event.disallow(Result.KICK_OTHER, cc.relogKickMessage);
|
||||
}
|
||||
else if (logins.isEnabled(player) && logins.check(player, cc, data)){
|
||||
event.disallow(Result.KICK_OTHER, cc.loginsKickMessage);
|
||||
else if (logins.isEnabled(player) && logins.check(player, cc, data)) {
|
||||
event.disallow(Result.KICK_OTHER, cc.loginsKickMessage);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onReload() {
|
||||
// Read some things from the global config file.
|
||||
ConfigFile config = ConfigManager.getConfigFile();
|
||||
initFilters(config);
|
||||
text.onReload();
|
||||
logins.onReload();
|
||||
}
|
||||
@Override
|
||||
public void onReload() {
|
||||
// Read some things from the global config file.
|
||||
ConfigFile config = ConfigManager.getConfigFile();
|
||||
initFilters(config);
|
||||
text.onReload();
|
||||
logins.onReload();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void playerJoins(final Player player) {
|
||||
final ChatConfig cc = ChatConfig.getConfig(player);
|
||||
@Override
|
||||
public void playerJoins(final Player player) {
|
||||
final ChatConfig cc = ChatConfig.getConfig(player);
|
||||
final ChatData data = ChatData.getData(player);
|
||||
synchronized (data) {
|
||||
if (captcha.isEnabled(player) && captcha.shouldCheckCaptcha(cc, data)){
|
||||
if (captcha.isEnabled(player) && captcha.shouldCheckCaptcha(cc, data)) {
|
||||
// shouldCheckCaptcha: only if really enabled.
|
||||
// TODO: Later: add check for cc.captchaOnLogin or so (before shouldCheckCaptcha).
|
||||
// TODO: maybe schedule this to come after other plugins messages.
|
||||
captcha.sendNewCaptcha(player, cc, data);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void playerLeaves(final Player player) {
|
||||
}
|
||||
@Override
|
||||
public void playerLeaves(final Player player) {
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -17,7 +17,10 @@ import org.bukkit.plugin.java.JavaPlugin;
|
||||
|
||||
import fr.neatmonster.nocheatplus.NCPAPIProvider;
|
||||
import fr.neatmonster.nocheatplus.checks.CheckType;
|
||||
import fr.neatmonster.nocheatplus.config.ConfigFile;
|
||||
import fr.neatmonster.nocheatplus.logging.StaticLog;
|
||||
import fr.neatmonster.nocheatplus.utilities.StringUtil;
|
||||
import fr.neatmonster.nocheatplus.utilities.ds.prefixtree.SimpleCharPrefixTree;
|
||||
|
||||
public class CommandUtil {
|
||||
|
||||
@ -154,4 +157,55 @@ public class CommandUtil {
|
||||
return res;
|
||||
}
|
||||
|
||||
/**
|
||||
* Clear tree and feed lower case. Adds versions with "/" if missing, also adds input without the first "/". No trimming is used, except left-trim.
|
||||
* @param tree
|
||||
* @param inputs
|
||||
*/
|
||||
public static void feedCommands(SimpleCharPrefixTree tree, Collection<String> inputs, boolean clear) {
|
||||
if (clear) {
|
||||
tree.clear();
|
||||
}
|
||||
for (String input : inputs) {
|
||||
if (input == null) {
|
||||
continue;
|
||||
}
|
||||
if (!input.isEmpty()) {
|
||||
// Do feed the original input.
|
||||
tree.feed(input);
|
||||
}
|
||||
input = StringUtil.leftTrim(input).toLowerCase();
|
||||
if (input.isEmpty()) {
|
||||
continue;
|
||||
}
|
||||
tree.feed(input);
|
||||
if (!input.startsWith("/")) {
|
||||
// Add version with '/'.
|
||||
tree.feed("/" + input);
|
||||
} else {
|
||||
// Add version without the first '/'.
|
||||
// TODO: Consider removing all leading '/' here.
|
||||
input = input.substring(1);
|
||||
if (!input.isEmpty()) {
|
||||
tree.feed(input);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read string list from config and call feedCommands(tree, list).
|
||||
*
|
||||
* @param tree
|
||||
* @param config
|
||||
* @param configPath
|
||||
* @param clear If to clear the map before inserting anything.
|
||||
*/
|
||||
public static void feedCommands(SimpleCharPrefixTree tree, ConfigFile config, String configPath, boolean clear) {
|
||||
final List<String> prefixes = config.getStringList(configPath);
|
||||
if (prefixes != null) {
|
||||
feedCommands(tree, prefixes, clear);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user