PlaceholderAPI hook

pom.xml

@@ -623,6 +623,12 @@
             <url>https://s01.oss.sonatype.org/content/repositories/snapshots/</url>
         </repository>
 
+        <!-- Placeholder API Repo -->
+        <repository>
+            <id>placeholderapi-repo</id>
+            <url>https://repo.extendedclip.com/content/repositories/placeholderapi/</url>
+        </repository>
+
         <!-- Multiverse Repo -->
         <repository>
             <id>onarandombox-repo-releases</id>
@@ -1038,6 +1044,14 @@
             </exclusions>
         </dependency>
 
+        <!-- Placeholder API -->
+        <dependency>
+            <groupId>me.clip</groupId>
+            <artifactId>placeholderapi</artifactId>
+            <version>2.11.6</version>
+            <scope>provided</scope>
+        </dependency>
+
         <!-- EssentialsX plugin -->
         <dependency>
             <groupId>net.essentialsx</groupId>

src/main/java/fr/xephi/authme/listener/ServerListener.java

@@ -53,6 +53,9 @@ public class ServerListener implements Listener {
         } else if ("ProtocolLib".equalsIgnoreCase(pluginName)) {
             protocolLibService.disable();
             logger.warning("ProtocolLib has been disabled, unhooking packet adapters!");
+        } else if ("PlaceholderAPI".equalsIgnoreCase(pluginName)) {
+            pluginHookService.unhookPlaceholderApi();
+            logger.info("PlaceholderAPI has been disabled: unhooking placeholders");
         }
     }
 
@@ -74,6 +77,8 @@ public class ServerListener implements Listener {
             spawnLoader.loadCmiSpawn();
         } else if ("ProtocolLib".equalsIgnoreCase(pluginName)) {
             protocolLibService.setup();
+        } else if ("PlaceholderAPI".equalsIgnoreCase(pluginName)) {
+            pluginHookService.tryHookToPlaceholderApi();
         }
     }
 }

src/main/java/fr/xephi/authme/service/GeoIpService.java

@@ -37,7 +37,7 @@ public class GeoIpService {
     private volatile boolean downloading;
 
     @Inject
-     GeoIpService(@DataFolder File dataFolder){
+    GeoIpService(@DataFolder File dataFolder) {
         this.dataFile = dataFolder.toPath().resolve(DATABASE_FILE);
 
         // Fires download of recent data or the initialization of the look up service

src/main/java/fr/xephi/authme/service/PluginHookService.java

@@ -6,6 +6,8 @@ import com.onarandombox.MultiverseCore.MultiverseCore;
 import com.onarandombox.MultiverseCore.api.MVWorldManager;
 import fr.xephi.authme.ConsoleLogger;
 import fr.xephi.authme.output.ConsoleLoggerFactory;
+import fr.xephi.authme.service.hook.papi.AuthMeExpansion;
+import me.clip.placeholderapi.PlaceholderAPIPlugin;
 import org.bukkit.Location;
 import org.bukkit.World;
 import org.bukkit.entity.Player;
@@ -26,6 +28,8 @@ public class PluginHookService {
     private Essentials essentials;
     private Plugin cmi;
     private MultiverseCore multiverse;
+    private PlaceholderAPIPlugin placeholderApi;
+    private AuthMeExpansion authMeExpansion;
 
     /**
      * Constructor.
@@ -38,6 +42,7 @@ public class PluginHookService {
         tryHookToEssentials();
         tryHookToCmi();
         tryHookToMultiverse();
+        tryHookToPlaceholderApi();
     }
 
     /**
@@ -133,6 +138,20 @@ public class PluginHookService {
         }
     }
 
+    /**
+     * Attempts to create a hook into PlaceholderAPI.
+     */
+    public void tryHookToPlaceholderApi() {
+        try {
+            placeholderApi = getPlugin(pluginManager, "PlaceholderAPI", PlaceholderAPIPlugin.class);
+            authMeExpansion = new AuthMeExpansion();
+            authMeExpansion.register();
+        } catch (Exception | NoClassDefFoundError ignored) {
+            placeholderApi = null;
+            authMeExpansion = null;
+        }
+    }
+
     /**
      * Attempts to create a hook into CMI.
      */
@@ -180,6 +199,16 @@ public class PluginHookService {
         multiverse = null;
     }
 
+    /**
+     * Unhooks from PlaceholderAPI.
+     */
+    public void unhookPlaceholderApi() {
+        if (placeholderApi != null) {
+            authMeExpansion.unregister();
+            placeholderApi = null;
+        }
+    }
+
     // ------
     // Helpers
     // ------

src/main/java/fr/xephi/authme/service/hook/papi/AuthMeExpansion.java

@@ -0,0 +1,71 @@
+package fr.xephi.authme.service.hook.papi;
+
+import fr.xephi.authme.AuthMe;
+import fr.xephi.authme.api.v3.AuthMeApi;
+import fr.xephi.authme.settings.Settings;
+import fr.xephi.authme.settings.properties.HooksSettings;
+import me.clip.placeholderapi.expansion.PlaceholderExpansion;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * AuthMe PlaceholderAPI expansion class.
+ * @author Kobe 8
+ */
+public class AuthMeExpansion extends PlaceholderExpansion {
+    private final Settings settings = AuthMe.settings;
+    private final AuthMeApi authMeApi = AuthMeApi.getInstance();
+    @Override
+    public @NotNull String getIdentifier() {
+        return "authme";
+    }
+
+    @Override
+    public @NotNull String getAuthor() {
+        return "HaHaWTH";
+    }
+
+    @Override
+    public @NotNull String getVersion() {
+        return AuthMe.getPluginVersion();
+    }
+
+    @Override
+    public boolean persist() {
+        return true;
+    }
+
+    @Override
+    public String onRequest(OfflinePlayer player, @NotNull String params) {
+        if (!settings.getProperty(HooksSettings.PLACEHOLDER_API)) return null;
+        if (params.equalsIgnoreCase("version")) {
+            return getVersion();
+        }
+        if (params.equalsIgnoreCase("is_registered")) {
+            if (player != null) {
+                Player onlinePlayer = player.getPlayer();
+                if (onlinePlayer != null) {
+                    return String.valueOf(authMeApi.isRegistered(onlinePlayer.getName()));
+                }
+            }
+        }
+        if (params.equalsIgnoreCase("is_authenticated")) {
+            if (player != null) {
+                Player onlinePlayer = player.getPlayer();
+                if (onlinePlayer != null) {
+                    return String.valueOf(authMeApi.isAuthenticated(onlinePlayer));
+                }
+            }
+        }
+        if (params.equalsIgnoreCase("last_login_time")) {
+            if (player != null) {
+                Player onlinePlayer = player.getPlayer();
+                if (onlinePlayer != null) {
+                    return authMeApi.getLastLoginTime(onlinePlayer.getName()).toString();
+                }
+            }
+        }
+        return null;
+    }
+}

src/main/java/fr/xephi/authme/settings/properties/HooksSettings.java

@@ -15,6 +15,10 @@ public final class HooksSettings implements SettingsHolder {
     public static final Property<Boolean> MULTIVERSE =
         newProperty("Hooks.multiverse", true);
 
+    @Comment("Do we need to hook with PlaceholderAPI for AuthMe placeholders?")
+    public static final Property<Boolean> PLACEHOLDER_API =
+        newProperty("Hooks.placeholderapi", true);
+
     @Comment("Do we need to hook with BungeeCord?")
     public static final Property<Boolean> BUNGEECORD =
         newProperty("Hooks.bungeecord", false);

src/main/java/fr/xephi/authme/settings/properties/PluginSettings.java

@@ -21,7 +21,7 @@ public final class PluginSettings implements SettingsHolder {
 
     @Comment({
         "Send i18n messages to player based on their client settings, this option will override `settings.messagesLanguage`",
-        "(Requires Protocollib or Packetevents)",
+        "(Requires ProtocolLib)",
         "This will not affect language of AuthMe help command."
     })
     public static final Property<Boolean> I18N_MESSAGES =

src/main/resources/plugin.yml

@@ -20,6 +20,7 @@ softdepend:
     - EssentialsSpawn
     - ProtocolLib
     - floodgate
+    - PlaceholderAPI
 commands:
   authme:
     description: AuthMe op commands