add fabric-permissions & luckperms provider

fabric-1.19/build.gradle

@@ -18,6 +18,11 @@ configurations {
     implementation.extendsFrom(shadow)
 }
 
+repositories {
+    mavenCentral()
+    maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
+}
+
 dependencies {
     minecraft "com.mojang:minecraft:${project.minecraft_version}"
     mappings "net.fabricmc:yarn:${project.yarn_mappings}:v2"
@@ -27,6 +32,9 @@ dependencies {
     compileOnly group: 'com.google.code.findbugs', name: 'jsr305', version: '3.0.2'
 
     shadow project(path: ':DynmapCore', configuration: 'shadow')
+
+    modCompileOnly "me.lucko:fabric-permissions-api:0.1-SNAPSHOT"
+    compileOnly 'net.luckperms:api:5.4'
 }
 
 processResources {

fabric-1.19/src/main/java/org/dynmap/fabric_1_19/DynmapPlugin.java

@@ -395,11 +395,21 @@ public class DynmapPlugin {
         /* Set up player login/quit event handler */
         registerPlayerLoginListener();
 
+        /* Initialize permissions handler */
+        if (FabricLoader.getInstance().isModLoaded("luckperms")) {
+            Log.info("Using luckperms for access control");
+            permissions = new LuckPermissions();
+        }
+        else if (FabricLoader.getInstance().isModLoaded("fabric-permissions-api-v0")) {
+            Log.info("Using fabric-permissions-api for access control");
+            permissions = new FabricPermissions();
+        } else {
             /* Initialize permissions handler */
             permissions = FilePermissions.create();
             if (permissions == null) {
                 permissions = new OpPermissions(new String[]{"webchat", "marker.icons", "marker.list", "webregister", "stats", "hide.self", "show.self"});
             }
+        }
         /* Get and initialize data folder */
         File dataDirectory = new File("dynmap");
 

fabric-1.19/src/main/java/org/dynmap/fabric_1_19/permissions/FabricPermissions.java

@@ -0,0 +1,47 @@
+package org.dynmap.fabric_1_18_2.permissions;
+
+import me.lucko.fabric.api.permissions.v0.Permissions;
+import net.minecraft.entity.player.PlayerEntity;
+import org.dynmap.Log;
+import org.dynmap.fabric_1_18_2.DynmapPlugin;
+import org.dynmap.json.simple.parser.JSONParser;
+
+import java.util.Set;
+import java.util.stream.Collectors;
+
+public class FabricPermissions implements PermissionProvider {
+
+    private String permissionKey(String perm) {
+        return "dynmap." + perm;
+    }
+
+    @Override
+    public Set<String> hasOfflinePermissions(String player, Set<String> perms) {
+        return perms.stream()
+                .filter(perm -> hasOfflinePermission(player, perm))
+                .collect(Collectors.toSet());
+    }
+
+    @Override
+    public boolean hasOfflinePermission(String player, String perm) {
+        return DynmapPlugin.plugin.isOp(player.toLowerCase());
+    }
+
+    @Override
+    public boolean has(PlayerEntity player, String permission) {
+        if (player == null) return false;
+        String name = player.getName().getString().toLowerCase();
+        if (DynmapPlugin.plugin.isOp(name)) return true;
+        return Permissions.check(player, permissionKey(permission));
+    }
+
+    @Override
+    public boolean hasPermissionNode(PlayerEntity player, String permission) {
+        if (player != null) {
+            String name = player.getName().getString().toLowerCase();
+            return DynmapPlugin.plugin.isOp(name);
+        }
+        return false;
+    }
+
+}

fabric-1.19/src/main/java/org/dynmap/fabric_1_19/permissions/LuckPermissions.java

@@ -0,0 +1,102 @@
+package org.dynmap.fabric_1_18_2.permissions;
+
+import me.lucko.fabric.api.permissions.v0.Permissions;
+import net.luckperms.api.LuckPerms;
+import net.luckperms.api.LuckPermsProvider;
+import net.luckperms.api.cacheddata.CachedPermissionData;
+import net.luckperms.api.model.user.User;
+import net.luckperms.api.util.Tristate;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.server.MinecraftServer;
+import org.dynmap.Log;
+import org.dynmap.fabric_1_18_2.DynmapPlugin;
+import org.dynmap.json.simple.JSONArray;
+import org.dynmap.json.simple.JSONObject;
+import org.dynmap.json.simple.parser.JSONParser;
+import org.dynmap.json.simple.parser.ParseException;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.Optional;
+import java.util.Set;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+public class LuckPermissions implements PermissionProvider {
+
+    private final JSONParser parser = new JSONParser();
+    private LuckPerms api = null;
+
+    private Optional<LuckPerms> getApi() {
+        if (api != null) return Optional.of(api);
+        try {
+            api = LuckPermsProvider.get();
+            return Optional.of(api);
+        } catch (Exception ex) {
+            Log.warning("Trying to access LuckPerms before it has loaded");
+            return Optional.empty();
+        }
+    }
+
+    private Optional<UUID> cachedUUID(String username) {
+        try {
+            BufferedReader reader = new BufferedReader(new FileReader(MinecraftServer.USER_CACHE_FILE));
+            JSONArray cache = (JSONArray) parser.parse(reader);
+            for (Object it : cache) {
+                JSONObject user = (JSONObject) it;
+                if (user.get("name").toString().equalsIgnoreCase(username)) {
+                    String uuid = user.get("uuid").toString();
+                    return Optional.of(UUID.fromString(uuid));
+                }
+            }
+
+            reader.close();
+        } catch (IOException | ParseException ex) {
+            Log.warning("Unable to read usercache.json");
+        }
+
+        return Optional.empty();
+    }
+
+    private String permissionKey(String perm) {
+        return "dynmap." + perm;
+    }
+
+    @Override
+    public Set<String> hasOfflinePermissions(String player, Set<String> perms) {
+        return perms.stream()
+                .filter(perm -> hasOfflinePermission(player, perm))
+                .collect(Collectors.toSet());
+    }
+
+    @Override
+    public boolean hasOfflinePermission(String player, String perm) {
+        if (DynmapPlugin.plugin.isOp(player.toLowerCase())) return true;
+        Optional<LuckPerms> api = getApi();
+        Optional<UUID> uuid = cachedUUID(player);
+        if (!uuid.isPresent() || !api.isPresent()) return false;
+        User user = api.get().getUserManager().loadUser(uuid.get()).join();
+        CachedPermissionData permissions = user.getCachedData().getPermissionData();
+        Tristate state = permissions.checkPermission(permissionKey(perm));
+        return state.asBoolean();
+    }
+
+    @Override
+    public boolean has(PlayerEntity player, String permission) {
+        if (player == null) return false;
+        String name = player.getName().getString().toLowerCase();
+        if (DynmapPlugin.plugin.isOp(name)) return true;
+        return Permissions.check(player, permissionKey(permission));
+    }
+
+    @Override
+    public boolean hasPermissionNode(PlayerEntity player, String permission) {
+        if (player != null) {
+            String name = player.getName().getString().toLowerCase();
+            return DynmapPlugin.plugin.isOp(name);
+        }
+        return false;
+    }
+
+}