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Code Issues Releases Activity

Update PacketConsumers.java

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XiaoMoMi
2025-03-24 00:17:18 +08:00
parent 364b680838
commit 096b687ea4
1 changed files with 57 additions and 33 deletions
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90
bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/network/PacketConsumers.java
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@@ -710,52 +710,76 @@ public class PacketConsumers {
@SuppressWarnings("unchecked")
public static final TriConsumer<NetWorkUser, NMSPacketEvent, Object> EDIT_BOOK = (user, event, packet) -> {
try {
List<String> pages = (List<String>) Reflections.field$ServerboundEditBookPacket$pages.get(packet);
Optional<String> title = (Optional<String>) Reflections.field$ServerboundEditBookPacket$title.get(packet);
ImageManager manager = CraftEngine.instance().imageManager();
if (!manager.isDefaultFontInUse()) return;
AtomicBoolean hasChange = new AtomicBoolean(false);
List<String> newPages = new ArrayList<>(pages.size());
Optional<String> newTitle = title.map(t -> processTitle(t, manager, hasChange));
pages.forEach(page -> newPages.add(processPage(page, manager, hasChange)));
boolean changed = false;
if (hasChange.get()) {
event.setCancelled(true);
Object newPacket = Reflections.constructor$ServerboundEditBookPacket.newInstance(
Reflections.field$ServerboundEditBookPacket$slot.get(packet),
newPages,
newTitle
);
user.receivePacket(newPacket);
List<String> pages = (List<String>) Reflections.field$ServerboundEditBookPacket$pages.get(packet);
List<String> newPages = new ArrayList<>(pages.size());
Optional<String> title = (Optional<String>) Reflections.field$ServerboundEditBookPacket$title.get(packet);
Optional<String> newTitle;
if (title.isPresent()) {
String titleStr = title.get();
Pair<Boolean, String> result = processClientString(titleStr, manager);
newTitle = Optional.of(result.right());
if (result.left()) {
changed = true;
}
} else {
newTitle = Optional.empty();
}
for (String page : pages) {
Pair<Boolean, String> result = processClientString(page, manager);
newPages.add(result.right());
if (result.left()) {
changed = true;
}
}
if (changed) {
if (VersionHelper.isVersionNewerThan1_20_5()) {
event.setCancelled(true);
Object newPacket = Reflections.constructor$ServerboundEditBookPacket.newInstance(
Reflections.field$ServerboundEditBookPacket$slot.get(packet),
newPages,
newTitle
);
user.receivePacket(newPacket);
} else {
Reflections.field$ServerboundEditBookPacket$pages.set(packet, newPages);
Reflections.field$ServerboundEditBookPacket$title.set(packet, newTitle);
}
}
} catch (Exception e) {
CraftEngine.instance().logger().warn("Failed to handle ServerboundEditBookPacket", e);
}
};
private static String processTitle(String original, ImageManager manager, AtomicBoolean hasChange) {
AtomicReference<String> result = new AtomicReference<>(original);
runIfContainsIllegalCharacter(original, manager, modified -> {
result.set(modified);
hasChange.set(true);
});
return result.get();
}
private static String processPage(String original, ImageManager manager, AtomicBoolean hasChange) {
AtomicReference<String> result = new AtomicReference<>(original);
runIfContainsIllegalCharacter(original, manager, modified -> {
result.set(modified);
hasChange.set(true);
});
return result.get();
private static Pair<Boolean, String> processClientString(String original, ImageManager manager) {
if (original.isEmpty()) {
return Pair.of(false, original);
}
int[] codepoints = CharacterUtils.charsToCodePoints(original.toCharArray());
int[] newCodepoints = new int[codepoints.length];
boolean hasIllegal = false;
for (int i = 0; i < codepoints.length; i++) {
int codepoint = codepoints[i];
if (manager.isIllegalCharacter(codepoint)) {
newCodepoints[i] = '*';
hasIllegal = true;
} else {
newCodepoints[i] = codepoint;
}
}
return hasIllegal ? Pair.of(true, new String(newCodepoints, 0, newCodepoints.length)) : Pair.of(false, original);
}
private static void runIfContainsIllegalCharacter(String string, ImageManager manager, Consumer<String> callback) {
//noinspection DuplicatedCode
char[] chars = string.toCharArray();
int[] codepoints = CharacterUtils.charsToCodePoints(chars);
if (string.isEmpty()) return;
int[] codepoints = CharacterUtils.charsToCodePoints(string.toCharArray());
int[] newCodepoints = new int[codepoints.length];
boolean hasIllegal = false;
for (int i = 0; i < codepoints.length; i++) {