Added Player properties, started working on Bungee skins, fixed errors

api/src/main/java/org/geysermc/floodgate/api/player/FloodgatePlayer.java

@@ -97,6 +97,11 @@ public interface FloodgatePlayer {
      */
     InputMode getInputMode();
 
+    /**
+     * Returns if the Floodgate player is connected through a proxy
+     */
+    boolean isFromProxy();
+
     /**
      * Returns the LinkedPlayer object if the player is linked to a Java account.
      */
@@ -115,6 +120,18 @@ public interface FloodgatePlayer {
         return sendForm(formBuilder.build());
     }
 
+    <T> T getProperty(PropertyKey key);
+
+    <T> T getProperty(String key);
+
+    <T> T removeProperty(PropertyKey key);
+
+    <T> T removeProperty(String key);
+
+    <T> T addProperty(PropertyKey key, Object value);
+
+    <T> T addProperty(String key, Object value);
+
     /**
      * Casts the FloodgatePlayer instance to a class that extends FloodgatePlayer.
      *

api/src/main/java/org/geysermc/floodgate/api/player/PropertyKey.java

@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Floodgate
+ */
+
+package org.geysermc.floodgate.api.player;
+
+import lombok.Getter;
+
+@Getter
+public class PropertyKey {
+    /**
+     * Socket Address returns the InetSocketAddress of the Bedrock player
+     */
+    public static final PropertyKey SOCKET_ADDRESS =
+            new PropertyKey("socket_address", false, false);
+
+    /**
+     * Skin Uploaded returns a JsonObject containing the value and signature of the Skin
+     */
+    public static final PropertyKey SKIN_UPLOADED =
+            new PropertyKey("skin_uploaded", false, false);
+
+    private final String key;
+    private final boolean changeable;
+    private final boolean removeable;
+
+    public PropertyKey(String key, boolean changeable, boolean removeable) {
+        this.key = key;
+        this.changeable = changeable;
+        this.removeable = removeable;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj instanceof PropertyKey) {
+            return key.equals(((PropertyKey) obj).key);
+        }
+
+        if (obj instanceof String) {
+            return key.equals(obj);
+        }
+        return false;
+    }
+
+    public AllowedResult isAddAllowed(Object obj) {
+        if (obj instanceof PropertyKey) {
+            PropertyKey propertyKey = (PropertyKey) obj;
+
+            if (key.equals(propertyKey.key)) {
+                if ((propertyKey.changeable == changeable || propertyKey.changeable) &&
+                        (propertyKey.removeable == removeable || propertyKey.removeable)) {
+                    return AllowedResult.CORRECT;
+                }
+                return AllowedResult.INVALID_TAGS;
+            }
+            return AllowedResult.NOT_EQUALS;
+        }
+
+        if (obj instanceof String) {
+            if (changeable) {
+                return AllowedResult.CORRECT;
+            }
+            return AllowedResult.INVALID_TAGS;
+        }
+        return AllowedResult.NOT_EQUALS;
+    }
+
+    public enum AllowedResult {
+        NOT_EQUALS,
+        INVALID_TAGS,
+        CORRECT
+    }
+}