From c27a34ce40f146eebc89df54c5065ad5128f9340 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Wed, 5 Jan 2022 10:21:44 -0500
Subject: [PATCH] feat: Add worldedit.schematic.list.other permission and
 functionality (#1507)

* Add worldedit.schematic.list.other permission and functionality

* Implement StringMan#containsUuid

* Javadocs

* chore: Add since annotation

Co-authored-by: NotMyFault <mc.cache@web.de>
---
 .../core/util/StringMan.java                  | 15 +++++++++++++
 .../worldedit/command/UtilityCommands.java    | 21 +++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/worldedit-core/src/main/java/com/fastasyncworldedit/core/util/StringMan.java b/worldedit-core/src/main/java/com/fastasyncworldedit/core/util/StringMan.java
index f15e010ce..432acfe2d 100644
--- a/worldedit-core/src/main/java/com/fastasyncworldedit/core/util/StringMan.java
+++ b/worldedit-core/src/main/java/com/fastasyncworldedit/core/util/StringMan.java
@@ -9,11 +9,14 @@ import java.util.List;
 import java.util.Locale;
 import java.util.Set;
 import java.util.function.Function;
+import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import java.util.stream.IntStream;
 
 public class StringMan {
 
+    private static final Pattern UUID_PATTERN = Pattern.compile("[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}");
+
     public static boolean containsAny(CharSequence sequence, String any) {
         return IntStream.range(0, sequence.length())
                 .anyMatch(i -> any.indexOf(sequence.charAt(i)) != -1);
@@ -542,4 +545,16 @@ public class StringMan {
         return IntStream.range(0, n).mapToObj(i -> s).collect(Collectors.joining());
     }
 
+    /**
+     * Returns if there is a valid uuid contained inside the
+     * provided String.
+     *
+     * @param str provided string
+     * @return true if an uuid was found, false if not
+     * @since 2.0.0
+     */
+    public static boolean containsUuid(String str) {
+        return UUID_PATTERN.matcher(str).find();
+    }
+
 }
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/command/UtilityCommands.java b/worldedit-core/src/main/java/com/sk89q/worldedit/command/UtilityCommands.java
index 1389af7aa..1037df0b1 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/command/UtilityCommands.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/command/UtilityCommands.java
@@ -25,6 +25,7 @@ import com.fastasyncworldedit.core.configuration.Settings;
 import com.fastasyncworldedit.core.function.QuadFunction;
 import com.fastasyncworldedit.core.util.MainUtil;
 import com.fastasyncworldedit.core.util.MaskTraverser;
+import com.fastasyncworldedit.core.util.StringMan;
 import com.fastasyncworldedit.core.util.TaskManager;
 import com.fastasyncworldedit.core.util.image.ImageUtil;
 import com.fastasyncworldedit.core.util.task.DelegateConsumer;
@@ -1033,7 +1034,27 @@ public class UtilityCommands {
         if (playerFolder) {
             if (listMine) {
                 File playerDir = MainUtil.resolveRelative(new File(dir, actor.getUniqueId() + dirFilter));
+                //FAWE start - Schematic list other permission
+                if (!actor.hasPermission("worldedit.schematic.list.other") && StringMan.containsUuid(dirFilter)) {
+                    return;
+                }
                 if (playerDir.exists()) {
+                    if (!actor.hasPermission("worldedit.schematic.list.other")) {
+                        forEachFile = new DelegateConsumer<>(forEachFile) {
+                            @Override
+                            public void accept(File f) {
+                                try {
+                                    if (f.isDirectory() && !UUID.fromString(f.getName()).equals(actor.getUniqueId())) { // Ignore
+                                        // directories of other players
+                                        return;
+                                    }
+                                } catch (IllegalArgumentException ignored) {
+                                }
+                                super.accept(f);
+                            }
+                        };
+                    }
+                    //FAWE end
                     allFiles(playerDir.listFiles(), false, forEachFile);
                 }
             }