Bugs corrigidos

Um bloco do if (menu instanceof UnicastSubMenu) estava duplicado e
incompleto (sobrava um fragmento com reticências soltas), o que
impedia a compilação do núcleo. Remove a duplicação, mantendo só
o bloco correto e completo que já existia logo depois.

.gitignore

@@ -1,9 +1,3 @@
-/pitiupi/build/
-/pitiupi/dist/
-/pitiupi.chat/build/
-/pitiupi.chat/dist/
-/pitiupi.chat/nbproject/private/
-/pitiupi.screenCast/build/
-/pitiupi.screenCast/dist/
-
-.idea/
+build/
+dist/
+*.class

.idea/.gitignore

@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/libraries/pitiupi.xml

@@ -0,0 +1,9 @@
+<component name="libraryTable">
+  <library name="pitiupi">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/pitiupi.screenCast/dist/lib/pitiupi.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>

.idea/libraries/pitiupi_chat.xml

@@ -0,0 +1,9 @@
+<component name="libraryTable">
+  <library name="pitiupi.chat">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/pitiupi.chat/dist/pitiupi.chat.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>

.idea/libraries/pitiupi_screenCast.xml

@@ -0,0 +1,9 @@
+<component name="libraryTable">
+  <library name="pitiupi.screenCast">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/pitiupi.screenCast/dist/pitiupi.screenCast.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>

.idea/libraries/plugins.xml

@@ -0,0 +1,10 @@
+<component name="libraryTable">
+  <library name="plugins">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/pitiupi/plugins/pitiupi.screenCast.jar!/" />
+      <root url="jar://$PROJECT_DIR$/pitiupi/plugins/pitiupi.chat.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>

.idea/misc.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" project-jdk-name="openjdk-27" project-jdk-type="JavaSDK" />
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/pitiupi.iml" filepath="$PROJECT_DIR$/.idea/pitiupi.iml" />
+    </modules>
+  </component>
+</project>

.idea/pitiupi.iml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

README.md

@@ -1,10 +1,13 @@
 # pitiupi
 
-Ferramenta p2p para práticas em rede
+Este repositório tem 4 projetos Java que são independentes:
 
-Este repositório tem 3 projetos Java que são independentes:
+### Sistema:
 - A ferramenta pitiupi (P2P)
+
+### Plugins: 
 - Um plugin de Chat
+- Um plugin de Chat multiprotocolo (TCP/UDP)
 - Um plugin de ScreenCast
 
 Cada um destes projetos deve ser compilado individualmente. Para isso, use a ferramenta ant no diretório do projeto.
@@ -21,9 +24,26 @@ Para criar links simbólicos no Linux, use o comando:
 ```
 cd pitiupi/plugins
 ln -s ../../pitiupi.chat/dist/*.jar .
+ln -s ../../pitiupi.mpChat/dist/*.jar .
 ln -s ../../pitiupi.screenCast/dist/*.jar .
 ``` 
 Isso deve resolver!
 
-Para criar um novo plugin:
+## Como um plugin conversa com o pitiupi
 
+Um plugin nunca recebe acesso direto às classes internas do núcleo (ConnectionManager, GuiManager). Em vez disso, recebe uma facade, a classe Pitiupi, que expõe só o que um plugin precisa: enviar mensagem (multicast, unicast ou tcp), abrir conexão tcp privada, ler nome de usuário e porta, criar menu.
+
+```java
+public abstract void createPlugin(Pitiupi pitiupi);
+```
+
+## Para criar um novo plugin
+
+1. Implemente `pitiupi.models.Plugin`, incluindo `createPlugin(Pitiupi pitiupi)`
+2. Registre a classe em `src/META-INF/services/pitiupi.models.Plugin`, com o nome completo da classe numa linha
+3. Compile com `ant jar`
+4. Linke o `.jar` em `pitiupi/plugins`
+
+Use `pitiupi.chat` como referência — é o exemplo mais simples e completo.
+
+Plugins que ainda não foram atualizados para a Pitiupi (como uma versão mais antiga do screenCast) não compilam contra o núcleo atual e precisam de migração antes de serem usados.

pitiupi.chat/build/built-jar.properties

@@ -1,6 +0,0 @@
-#Mon, 17 Aug 2026 14:26:26 -0300
-
-
-C\:\\Users\\extre\\OneDrive\\Documentos\\Faculdade\\2026_02\\Monitoria\\Pitiupi\\pitiupi.chat=
-
-C\:\\Users\\extre\\OneDrive\\Documentos\\Faculdade\\2026_02\\Monitoria\\Pitiupi\\pitiupi=

pitiupi.chat/nbproject/project.properties

@@ -47,8 +47,8 @@ javac.modulepath=
 javac.processormodulepath=
 javac.processorpath=\
     ${javac.classpath}
-javac.source=25
-javac.target=25
+javac.source=17
+javac.target=17
 javac.test.classpath=\
     ${javac.classpath}:\
     ${build.classes.dir}

pitiupi.chat/src/META-INF/services/pitiupi.plugin.Plugin

@@ -1 +0,0 @@
-pitiupi.chat.plugin.ChatPlugin

pitiupi.chat/src/pitiupi.chat.iml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="module-library">
+      <library>
+        <CLASSES>
+          <root url="jar://$MODULE_DIR$/../../pitiupi/dist/pitiupi.jar!/" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

pitiupi.chat/src/pitiupi/chat/GUI/ChatMenu.java

@@ -4,28 +4,29 @@
  */
 package pitiupi.chat.GUI;
 
-import java.awt.event.ActionEvent;
-import javax.swing.JMenu;
+import pitiupi.models.Menus.MulticastMenus.MulticastMenu;
+import pitiupi.models.Menus.MulticastMenus.MulticastSubMenu;
+
+import java.util.List;
 
 /**
  *
  * @author flavio
  */
-public class ChatMenu extends JMenu {
-
-    private final ChatWindow chatWindow;
-    private javax.swing.JMenuItem menuItem;
+public class ChatMenu extends MulticastSubMenu {
+    ChatMulticastMenu chatMulticastMenu;
 
     public ChatMenu(ChatWindow chatWindow) {
-        this.chatWindow = chatWindow;
-        this.setText("Chat");
-        menuItem = new javax.swing.JMenuItem();
-        menuItem.setText("Show Chat Window");
-        menuItem.addActionListener(this::chatMenuActionPerformed);
-        this.add(menuItem);
+        this.chatMulticastMenu = new ChatMulticastMenu(chatWindow);
     }
 
-    private void chatMenuActionPerformed(ActionEvent ae) {
-        this.chatWindow.setVisible(true);
+    @Override
+    public String getText() {
+        return "Chat";
+    }
+
+    @Override
+    public List<MulticastMenu> getMenus() {
+        return List.of(chatMulticastMenu);
     }
 }

pitiupi.chat/src/pitiupi/chat/GUI/ChatMulticastMenu.java

@@ -0,0 +1,21 @@
+package pitiupi.chat.GUI;
+
+import pitiupi.models.Menus.MulticastMenus.MulticastActionMenu;;
+
+public class ChatMulticastMenu extends MulticastActionMenu {
+    ChatWindow chatWindow;
+
+    public ChatMulticastMenu(ChatWindow chatWindow) {
+        this.chatWindow = chatWindow;
+    }
+
+    @Override
+    public String getText() {
+        return "Show Chat Window";
+    }
+
+    @Override
+    public void onClick() {
+        chatWindow.setVisible(true);
+    }
+}

pitiupi.chat/src/pitiupi/chat/GUI/ChatWindow.java

@@ -5,37 +5,35 @@
  */
 package pitiupi.chat.GUI;
 
-import java.io.IOException;
 import java.text.SimpleDateFormat;
 import java.util.Date;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 import pitiupi.chat.net.ChatMessage;
-import pitiupi.GUI.MainWindow;
-import pitiupi.net.Message;
+import pitiupi.plugin.Pitiupi;
+import pitiupi.models.Messages.Message;
+
+import javax.swing.*;
 
 /**
- *
+ * @author tony
  * @author flavio
  */
-public class ChatWindow extends javax.swing.JDialog {
+public class ChatWindow extends JDialog {
 
-    private javax.swing.JButton jButton1;
-    private javax.swing.JEditorPane jEditorPane1;
-    private javax.swing.JPanel jPanel1;
-    private javax.swing.JPanel jPanel2;
-    private javax.swing.JScrollPane jScrollPane1;
-    private javax.swing.JScrollPane jScrollPane2;
-    private javax.swing.JSplitPane jSplitPane1;
-    private javax.swing.JTextArea jTextArea1;
+    private JButton jButton1;
+    private JEditorPane jEditorPane1;
+    private JPanel jPanel1;
+    private JPanel jPanel2;
+    private JScrollPane jScrollPane1;
+    private JScrollPane jScrollPane2;
+    private JSplitPane jSplitPane1;
+    private JTextArea jTextArea1;
 
-    private final MainWindow mainWindow;
-
-    public ChatWindow(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
-        initComponents();
-    }
+    private final Pitiupi pitiupi;
 
+	public ChatWindow(Pitiupi pitiupi) {
+          this.pitiupi = pitiupi;
+          initComponents();
+	}
     /**
      * This method is called from within the constructor to initialize the form.
      * WARNING: Do NOT modify this code. The content of this method is always
@@ -43,23 +41,23 @@ public class ChatWindow extends javax.swing.JDialog {
      */
     private void initComponents() {
 
-        this.setDefaultCloseOperation(javax.swing.WindowConstants.HIDE_ON_CLOSE);
+        this.setDefaultCloseOperation(WindowConstants.HIDE_ON_CLOSE);
         this.setTitle("Chat Window");
         this.setBounds(new java.awt.Rectangle(0, 0, 800, 600));
         this.getContentPane().setLayout(new java.awt.BorderLayout(5, 5));
         this.setPreferredSize(new java.awt.Dimension(800, 600));
 
-        jSplitPane1 = new javax.swing.JSplitPane();
-        jScrollPane1 = new javax.swing.JScrollPane();
-        jEditorPane1 = new javax.swing.JEditorPane();
-        jPanel1 = new javax.swing.JPanel();
-        jScrollPane2 = new javax.swing.JScrollPane();
-        jTextArea1 = new javax.swing.JTextArea();
-        jPanel2 = new javax.swing.JPanel();
-        jButton1 = new javax.swing.JButton();
+        jSplitPane1 = new JSplitPane();
+        jScrollPane1 = new JScrollPane();
+        jEditorPane1 = new JEditorPane();
+        jPanel1 = new JPanel();
+        jScrollPane2 = new JScrollPane();
+        jTextArea1 = new JTextArea();
+        jPanel2 = new JPanel();
+        jButton1 = new JButton();
 
         jSplitPane1.setDividerLocation(500);
-        jSplitPane1.setOrientation(javax.swing.JSplitPane.VERTICAL_SPLIT);
+        jSplitPane1.setOrientation(JSplitPane.VERTICAL_SPLIT);
         jEditorPane1.setContentType("text/html");
         jPanel1.setLayout(new java.awt.BorderLayout());
         jTextArea1.setColumns(20);
@@ -94,17 +92,13 @@ public class ChatWindow extends javax.swing.JDialog {
         if (jTextArea1.getText().trim().isEmpty()) {
             return;
         }
-        ChatMessage message = new ChatMessage(mainWindow.getUserName(), jTextArea1.getText());
+        ChatMessage message = new ChatMessage(pitiupi.getUserName(), jTextArea1.getText());
         this.sendChatMessage(message);
         jTextArea1.setText("");
     }
 
     public void sendChatMessage(Message message) {
-        try {
-            mainWindow.getSocketUDP().sendMulticast(message.toByteArray());
-        } catch (IOException ex) {
-            Logger.getLogger(MainWindow.class.getName()).log(Level.SEVERE, null, ex);
-        }
+        pitiupi.sendUdpMulticast(message);
     }
 
     public void receiveChatMessage(ChatMessage message) {

pitiupi.chat/src/pitiupi/chat/net/ChatMessage.java

@@ -5,14 +5,14 @@
  */
 package pitiupi.chat.net;
 
-import pitiupi.net.Message;
-import pitiupi.net.Message;
+
+import pitiupi.models.Messages.Message;
 
 /**
  *
  * @author flavio
  */
-public class ChatMessage extends Message{
+public class ChatMessage extends Message {
 
     private String text;
     private String name;

pitiupi.chat/src/pitiupi/chat/plugin/ChatPlugin.java

@@ -4,48 +4,43 @@
  */
 package pitiupi.chat.plugin;
 
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import pitiupi.GUI.MainWindow;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import pitiupi.plugin.Pitiupi;
 import pitiupi.chat.GUI.ChatMenu;
 import pitiupi.chat.GUI.ChatWindow;
 import pitiupi.chat.net.ChatMessage;
-import pitiupi.net.Message;
-import pitiupi.plugin.Plugin;
+import pitiupi.models.Menus.MenuCategory;
+import pitiupi.models.Messages.Message;
+import pitiupi.models.Plugin;
 
 /**
- *
+ *@author tony
  * @author flavio
  */
-public class ChatPlugin implements Plugin {
+public class ChatPlugin extends Plugin {
 
     private ChatWindow chatWindow;
-    private MainWindow mainWindow;
 
-    public ChatPlugin() {
+   @Override
+    public void createPlugin(Pitiupi pitiupi) {
+        this.chatWindow = new ChatWindow(pitiupi);
+        pitiupi.createMenu(MenuCategory.Social, new ChatMenu(chatWindow));
     }
 
-    @Override
-    public void createPlugin(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
-        this.chatWindow = new ChatWindow(mainWindow);
-        this.mainWindow.addMenu(new ChatMenu(chatWindow));
-    }
 
     @Override
-    public void receiveMessage(byte[] message) {
-        ByteArrayInputStream bis = new ByteArrayInputStream(message);
-        ObjectInputStream ois;
-        try {
-            ois = new ObjectInputStream(bis);
-            if (ois.readObject() instanceof ChatMessage msg) {
-                this.chatWindow.receiveChatMessage(msg);
-            }
-        } catch (IOException ex) {
-            System.out.println(ex.toString());
-        } catch (ClassNotFoundException ex) {
-            System.out.println(ex.toString());
+    public List<Class<? extends Message>> getMessages() {
+        return List.of(ChatMessage.class);
+    }
+
+
+    @Override
+    public void receiveMessage(Message message) {
+        if (message instanceof ChatMessage msg) {
+            this.chatWindow.receiveChatMessage(msg);
         }
     }
 
@@ -65,7 +60,9 @@ public class ChatPlugin implements Plugin {
     }
 
     @Override
-    public Message getMessage() {
-        return new ChatMessage();
+    public String getIdentifier() {
+        return "Pitiupi.Chat.Example";
     }
+
+
 }

pitiupi.mpChat/.idea/.gitignore

@@ -0,0 +1,5 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/

pitiupi.mpChat/.idea/misc.xml

@@ -0,0 +1,5 @@
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_X" default="true" project-jdk-name="openjdk-26" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

pitiupi.mpChat/.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/pitiupi.mpChat.iml" filepath="$PROJECT_DIR$/pitiupi.mpChat.iml" />
+    </modules>
+  </component>
+</project>

pitiupi.mpChat/.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>

pitiupi.mpChat/Makefile

@@ -0,0 +1,16 @@
+JAR = ../pitiupi/dist/pitiupi.jar
+OUT_DIR = out
+META-INF_DIR = src/META-INF
+DIST = dist/mpChat.jar
+
+SOURCES = $(shell find -name "*.java")
+
+all:
+	mkdir -p "$(OUT_DIR)"
+	mkdir -p "$(dir $(DIST))"
+	javac -cp "$(JAR)" -d "$(OUT_DIR)" $(SOURCES)
+	cp -r "$(META-INF_DIR)" "$(OUT_DIR)"
+	jar cf "$(DIST)" -C "$(OUT_DIR)" .
+
+clean:
+	rm -rf "$(OUT_DIR)"/*

pitiupi.mpChat/out/META-INF/services/pitiupi.models.Plugin

@@ -0,0 +1 @@
+plugin.MultiProtocolChat

pitiupi.mpChat/src/GUI/MulticastMpChatMenu.java

@@ -0,0 +1,22 @@
+package GUI;
+
+import pitiupi.models.Menus.MulticastMenus.MulticastActionMenu;
+
+public class MulticastMpChatMenu extends MulticastActionMenu {
+    PublicChatWindow publicChatWindow;
+
+    public MulticastMpChatMenu(PublicChatWindow publicChatWindow) {
+        this.publicChatWindow = publicChatWindow;
+    }
+
+    @Override
+    public void onClick() {
+        publicChatWindow.setVisible(true);
+    }
+
+
+    @Override
+    public String getText() {
+        return "MP-Chat";
+    }
+}

pitiupi.mpChat/src/GUI/PrivateChatWindow.java

@@ -0,0 +1,122 @@
+package GUI;
+
+import net.MpChatMessage;
+import pitiupi.net.tcp.TcpConnection;
+import pitiupi.plugin.Pitiupi;
+
+import javax.swing.*;
+import java.awt.*;
+import java.net.InetAddress;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class PrivateChatWindow extends JFrame {
+
+    private final Pitiupi pitiupi;
+    private final TcpConnection connection;
+
+    private final JTextArea receivedMessagesArea;
+    private final JTextField messageField;
+
+    public PrivateChatWindow(
+            Pitiupi pitiupi,
+            TcpConnection connection
+    ) {
+        this.pitiupi = pitiupi;
+        this.connection = connection;
+
+        setTitle("Chat privado");
+        setSize(700, 500);
+        setLocationRelativeTo(null);
+        setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
+
+        JPanel mainPanel = new JPanel(new BorderLayout(10, 10));
+        mainPanel.setBorder(
+                BorderFactory.createEmptyBorder(10, 10, 10, 10)
+        );
+
+        receivedMessagesArea = new JTextArea();
+        receivedMessagesArea.setEditable(false);
+        receivedMessagesArea.setLineWrap(true);
+        receivedMessagesArea.setWrapStyleWord(true);
+
+        JScrollPane messagesScrollPane =
+                new JScrollPane(receivedMessagesArea);
+
+        messagesScrollPane.setBorder(
+                BorderFactory.createTitledBorder("Mensagens")
+        );
+
+        mainPanel.add(
+                messagesScrollPane,
+                BorderLayout.CENTER
+        );
+
+        JPanel bottomPanel = new JPanel(
+                new BorderLayout(10, 10)
+        );
+
+        messageField = new JTextField();
+
+        JButton tcpButton = new JButton("TCP");
+        tcpButton.addActionListener(e -> sendTCP());
+
+        bottomPanel.add(
+                messageField,
+                BorderLayout.CENTER
+        );
+
+        bottomPanel.add(
+                tcpButton,
+                BorderLayout.EAST
+        );
+
+        mainPanel.add(
+                bottomPanel,
+                BorderLayout.SOUTH
+        );
+
+        setContentPane(mainPanel);
+    }
+
+    private void sendTCP() {
+        try {
+            String nome = pitiupi.getUserName();
+
+            MpChatMessage message = new MpChatMessage(
+                    nome,
+                    InetAddress.getLocalHost().getHostAddress(),
+                    "TCP Private",
+                    messageField.getText()
+            );
+
+            connection.send(message.toByteArray());
+            receiveMessage(message);
+
+            messageField.setText("");
+
+        } catch (Exception ex) {
+            Logger.getLogger(
+                    PrivateChatWindow.class.getName()
+            ).log(Level.SEVERE, null, ex);
+        }
+    }
+
+    public void receiveMessage(MpChatMessage message) {
+        SwingUtilities.invokeLater(() -> {
+            String texto = String.format(
+                    "[%s] %s (%s): %s%n",
+                    message.getTipoMensagem(),
+                    message.getNome(),
+                    message.getIp(),
+                    message.getMessage()
+            );
+
+            receivedMessagesArea.append(texto);
+
+            receivedMessagesArea.setCaretPosition(
+                    receivedMessagesArea.getDocument().getLength()
+            );
+        });
+    }
+}

pitiupi.mpChat/src/GUI/PublicChatWindow.java

@@ -0,0 +1,218 @@
+package GUI;
+
+import net.MpChatMessage;
+import pitiupi.control.ConnectionManager;
+import pitiupi.plugin.Pitiupi;
+
+import javax.swing.*;
+import javax.swing.text.BadLocationException;
+import javax.swing.text.SimpleAttributeSet;
+import javax.swing.text.StyleConstants;
+import javax.swing.text.StyledDocument;
+import java.awt.*;
+import java.net.InetAddress;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class PublicChatWindow extends JFrame {
+    private final Pitiupi pitiupi;
+
+    private JTextPane receivedMessagesArea;
+    private JTextField messageField;
+    private JTextField ipField;
+
+    public PublicChatWindow(Pitiupi pitiupi) {
+        this.pitiupi = pitiupi;
+
+        initComponents();
+    }
+
+    private void initComponents() {
+        setTitle("Public Chat");
+        setSize(700, 500);
+        setLocationRelativeTo(null);
+        setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
+
+        JPanel mainPanel = new JPanel(new BorderLayout(10, 10));
+
+        mainPanel.setBorder(
+                BorderFactory.createEmptyBorder(10, 10, 10, 10)
+        );
+
+        initReceivedMessagesPanel(mainPanel);
+        initBottomPanel(mainPanel);
+
+        setContentPane(mainPanel);
+    }
+
+    private void initReceivedMessagesPanel(JPanel mainPanel) {
+        receivedMessagesArea = new JTextPane();
+
+        receivedMessagesArea.setEditable(false);
+
+        JScrollPane messagesScrollPane = new JScrollPane(receivedMessagesArea);
+
+        messagesScrollPane.setBorder(
+                BorderFactory.createTitledBorder("Mensagens recebidas")
+        );
+
+        mainPanel.add(messagesScrollPane, BorderLayout.CENTER);
+    }
+
+    private void initBottomPanel(JPanel mainPanel) {
+        messageField = new JTextField();
+
+        JPanel bottomPanel = new JPanel(
+                new BorderLayout(10, 10)
+        );
+
+        bottomPanel.add(messageField, BorderLayout.CENTER);
+
+        initIpField(bottomPanel);
+        initCommunicationButtons(bottomPanel);
+
+        mainPanel.add(bottomPanel, BorderLayout.SOUTH);
+    }
+
+    private void initIpField(JPanel bottomPanel) {
+        ipField = new JTextField();
+        ipField.setPreferredSize(new Dimension(130, 30));
+
+        JPanel ipPanel = new JPanel(
+                new BorderLayout(5, 5)
+        );
+
+        ipPanel.add(
+                new JLabel("IP destino:"),
+                BorderLayout.WEST
+        );
+
+        ipPanel.add(
+                ipField,
+                BorderLayout.CENTER
+        );
+
+        bottomPanel.add(ipPanel, BorderLayout.WEST);
+    }
+
+    private void initCommunicationButtons(JPanel bottomPanel) {
+        JButton tcpButton = new JButton("TCP");
+        JButton udpButton = new JButton("UDP");
+        JButton multicastButton = new JButton("Multicast");
+
+        tcpButton.addActionListener(e -> sendTCP());
+        udpButton.addActionListener(e -> sendUDP());
+        multicastButton.addActionListener(e -> sendMulticast());
+
+        JPanel buttonsPanel = new JPanel(
+                new FlowLayout(FlowLayout.RIGHT, 5, 0)
+        );
+
+        buttonsPanel.add(tcpButton);
+        buttonsPanel.add(udpButton);
+        buttonsPanel.add(multicastButton);
+
+        bottomPanel.add(
+                buttonsPanel,
+                BorderLayout.EAST
+        );
+    }
+
+    private MpChatMessage createMessage(String tipoMensagem) {
+        try {
+            String nome = pitiupi.getUserName();
+            String ip = InetAddress.getLocalHost().getHostAddress();
+            String message = messageField.getText();
+
+            return new MpChatMessage(
+                    nome,
+                    ip,
+                    tipoMensagem,
+                    message
+            );
+
+        } catch (Exception ex) {
+            throw new RuntimeException(ex);
+        }
+    }
+
+    public void receiveMessage(MpChatMessage msg) {
+        SwingUtilities.invokeLater(() -> {
+            String mensagem = String.format(
+                    "[%s] %s (%s): %s%n",
+                    msg.getTipoMensagem(),
+                    msg.getNome(),
+                    msg.getIp(),
+                    msg.getMessage()
+            );
+
+            StyledDocument document = receivedMessagesArea.getStyledDocument();
+
+            SimpleAttributeSet attributes = new SimpleAttributeSet();
+
+            if (msg.getTipoMensagem().equals("TCP Unicast") || msg.getTipoMensagem().equals("UDP Unicast")) {
+                StyleConstants.setForeground(attributes, new Color(128, 0, 128));
+            }
+
+            try {
+                document.insertString(
+                        document.getLength(),
+                        mensagem,
+                        attributes
+                );
+
+                receivedMessagesArea.setCaretPosition(
+                        document.getLength()
+                );
+
+            } catch (BadLocationException ex) {
+                Logger.getLogger(PublicChatWindow.class.getName()).log(Level.SEVERE, null, ex);
+            }
+        });
+    }
+
+    private void sendTCP() {
+        try {
+            MpChatMessage msg = createMessage("TCP Unicast");
+
+            InetAddress ip = InetAddress.getByName(ipField.getText());
+
+            pitiupi.sendTcp(msg, ip);
+            receiveMessage(msg);
+
+        } catch (Exception ex) {
+            Logger.getLogger(
+                    PublicChatWindow.class.getName()
+            ).log(Level.SEVERE, null, ex);
+        }
+    }
+
+    private void sendUDP() {
+        try {
+            MpChatMessage msg = createMessage("UDP Unicast");
+
+            InetAddress ip = InetAddress.getByName(ipField.getText());
+
+            pitiupi.sendUdpUnicast(msg, ip);
+            receiveMessage(msg);
+
+        } catch (Exception ex) {
+            Logger.getLogger(
+                    PublicChatWindow.class.getName()
+            ).log(Level.SEVERE, null, ex);
+        }
+    }
+
+    private void sendMulticast() {
+        try {
+            MpChatMessage msg = createMessage("UDP Multicast");
+
+            pitiupi.sendUdpMulticast(msg);
+
+        } catch (Exception ex) {
+            Logger.getLogger(
+                    PublicChatWindow.class.getName()
+            ).log(Level.SEVERE, null, ex);
+        }
+    }
+}

pitiupi.mpChat/src/GUI/UnicastMpChatMenu.java

@@ -0,0 +1,26 @@
+package GUI;
+
+import control.PrivateChatController;
+import pitiupi.models.Menus.UnicastMenus.UnicastActionMenu;
+import pitiupi.models.User;
+
+public class UnicastMpChatMenu extends UnicastActionMenu {
+
+    private final PrivateChatController controller;
+
+    public UnicastMpChatMenu(
+            PrivateChatController controller
+    ) {
+        this.controller = controller;
+    }
+
+    @Override
+    public void onClick(User user) {
+        controller.openChat(user);
+    }
+
+    @Override
+    public String getText() {
+        return "Start Private Chat";
+    }
+}

pitiupi.mpChat/src/META-INF/services/pitiupi.models.Plugin

@@ -0,0 +1 @@
+plugin.MultiProtocolChat

pitiupi.mpChat/src/control/PrivateChatController.java

@@ -0,0 +1,116 @@
+package control;
+
+import GUI.PrivateChatWindow;
+import net.MpChatMessage;
+import pitiupi.models.User;
+import pitiupi.net.tcp.TcpConnection;
+import pitiupi.plugin.Pitiupi;
+import plugin.MultiProtocolChat;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+public class PrivateChatController {
+
+    private final Pitiupi pitiupi;
+    private final MultiProtocolChat multiProtocolChat;
+
+    /*
+     * Relaciona o endereço do usuário à janela de chat.
+     */
+    private final Map<String, PrivateChatWindow> windows;
+
+    /*
+     * Endereços para os quais uma conexão já foi solicitada,
+     * mas ainda não chegou.
+     */
+    private final Set<String> pendingConnections;
+
+    public PrivateChatController(
+            Pitiupi pitiupi,
+            MultiProtocolChat multiProtocolChat
+    ) {
+        this.pitiupi = pitiupi;
+        this.multiProtocolChat = multiProtocolChat;
+
+        this.windows = new HashMap<>();
+        this.pendingConnections = new HashSet<>();
+    }
+
+    public void openChat(User user) {
+        String address = user.getAddress().getHostAddress();
+
+        PrivateChatWindow window = windows.get(address);
+
+        /*
+         * Já existe uma janela para esse usuário.
+         */
+        if (window != null) {
+            window.setVisible(true);
+            window.toFront();
+            window.requestFocus();
+            return;
+        }
+
+        /*
+         * Já estamos esperando uma conexão para esse usuário.
+         */
+        if (pendingConnections.contains(address)) {
+            return;
+        }
+
+        /*
+         * Ainda não existe conexão.
+         */
+        pendingConnections.add(address);
+
+        multiProtocolChat.openConnection(address);
+    }
+
+    public void receiveMessage(TcpConnection connection, MpChatMessage message) {
+        String address = connection.getAddress().toString();
+
+        PrivateChatWindow window = windows.get(address);
+
+        if (window == null) {
+            return;
+        }
+
+        window.receiveMessage(message);
+    }
+
+    /**
+     * Deve ser chamado quando uma nova conexão privada chegar.
+     */
+    public void connectionReceived(TcpConnection connection) {
+        String address = connection.getAddress().toString();
+
+        pendingConnections.remove(address);
+
+        PrivateChatWindow window = new PrivateChatWindow(
+                pitiupi,
+                connection
+        );
+
+        windows.put(address, window);
+
+        window.setVisible(true);
+        window.toFront();
+        window.requestFocus();
+    }
+
+    /**
+     * Fecha a janela e remove o relacionamento.
+     */
+    public void closeChat(TcpConnection connection) {
+        String address = connection.getAddress().toString();
+
+        PrivateChatWindow window = windows.remove(address);
+
+        if (window != null) {
+            window.dispose();
+        }
+    }
+}

pitiupi.mpChat/src/net/MpChatMessage.java

@@ -1,21 +1,21 @@
 package net;
 
-import pitiupi.net.Message;
+import pitiupi.models.Messages.Message;
 
-public class TestChatMessage extends Message {
+public class MpChatMessage extends Message {
     private String nome;
     private String ip;
     private String tipoMensagem;
     private String message;
 
-    public TestChatMessage(String nome, String ip, String tipoMensagem, String message) {
+    public MpChatMessage(String nome, String ip, String tipoMensagem, String message) {
         this.nome = nome;
         this.ip = ip;
         this.tipoMensagem = tipoMensagem;
         this.message = message;
     }
 
-    public TestChatMessage(){}
+    public MpChatMessage(){}
 
     public String getNome() {
         return nome;

pitiupi.mpChat/src/plugin/MultiProtocolChat.java

@@ -0,0 +1,125 @@
+package plugin;
+
+import GUI.MulticastMpChatMenu;
+import GUI.PrivateChatWindow;
+import GUI.PublicChatWindow;
+import GUI.UnicastMpChatMenu;
+import control.PrivateChatController;
+import net.MpChatMessage;
+import pitiupi.models.Menus.MenuCategory;
+import pitiupi.models.Messages.Message;
+import pitiupi.net.tcp.TcpConnection;
+import pitiupi.models.Plugin;
+import pitiupi.plugin.Pitiupi;
+
+import javax.swing.*;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.net.InetAddress;
+import java.util.List;
+
+public class MultiProtocolChat extends Plugin {
+    Pitiupi pitiupi;
+
+    PrivateChatController privateChatController;
+    PublicChatWindow publicChatWindow;
+
+    @Override
+    public String getName() {
+        return "MultiProtocol chat";
+    }
+
+    @Override
+    public String getAuthor() {
+        return "Gustavo Henrique";
+    }
+
+    @Override
+    public String getVersion() {
+        return "0";
+    }
+
+    @Override
+    public String getIdentifier() {
+        return "Multi.Protocol.Chat.Pitiupi";
+    }
+
+    @Override
+    public void createPlugin(Pitiupi pitiupi) {
+        this.pitiupi = pitiupi;
+
+        privateChatController = new PrivateChatController(pitiupi, this);
+
+        publicChatWindow = new PublicChatWindow(pitiupi);
+
+        MulticastMpChatMenu multicastMpChatMenu = new MulticastMpChatMenu(publicChatWindow);
+        UnicastMpChatMenu unicastMpChatMenu = new UnicastMpChatMenu(privateChatController);
+
+        pitiupi.createMenu(MenuCategory.Social, multicastMpChatMenu);
+        pitiupi.createMenu(MenuCategory.Social, unicastMpChatMenu);
+    }
+
+    @Override
+    public List<Class<? extends Message>> getMessages() {
+        return List.of(MpChatMessage.class);
+    }
+
+    @Override
+    public void receiveMessage(Message message) {
+        if (message instanceof MpChatMessage mpChatMessage) {
+            publicChatWindow.receiveMessage(mpChatMessage);
+        }
+    }
+
+
+    @Override
+    public boolean receivePrivateConnection(TcpConnection connection) {
+        SwingUtilities.invokeLater(() -> {
+            privateChatController.connectionReceived(connection);
+        });
+        return true;
+    }
+
+    @Override
+    public boolean receiveBytes(TcpConnection connection, byte[] bytes) {
+        MpChatMessage mpChatMessage = parseMessage(bytes);
+        if (mpChatMessage == null) {
+            System.out.println("Invalid message received");
+            return true;
+        }
+        else System.out.println(mpChatMessage.getMessage());
+
+        privateChatController.receiveMessage(connection, mpChatMessage);
+        return true;
+    }
+
+    @Override
+    public boolean onSocketClosed(TcpConnection connection) {
+        privateChatController.closeChat(connection);
+        return true;
+    }
+
+    public void openConnection(String ip) {
+        try {
+            pitiupi.connectTcp(InetAddress.getByName(ip), getIdentifier(), getIdentifier());
+        }
+        catch (Exception e) {
+            System.out.println("Error opening connection: " + e.getMessage());
+        }
+    }
+
+    private MpChatMessage parseMessage(byte[] bytes) {
+        ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
+        ObjectInputStream ois;
+        try {
+            ois = new ObjectInputStream(bis);
+            if (ois.readObject() instanceof MpChatMessage msg) {
+                return msg;
+            }
+        } catch (IOException | ClassNotFoundException ex) {
+            System.out.println(ex.toString());
+        }
+        return null;
+    }
+}

pitiupi.screenCast/.idea/pitiupi.screenCast.iml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

pitiupi.screenCast/.idea/workspace.xml

@@ -5,24 +5,10 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="083e72ce-fa9b-4ddf-a0ef-24105aa3eabb" name="Changes" comment="">
-      <change beforePath="$PROJECT_DIR$/../.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../.idea/misc.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../.idea/vcs.xml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi.chat/.idea/misc.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/build/built-jar.properties" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi.chat/build/built-jar.properties" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/build/classes/pitiupi/chat/GUI/ChatWindow.class" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi.chat/build/classes/pitiupi/chat/GUI/ChatWindow.class" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/dist/pitiupi.chat.jar" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/pitiupi.chat.iml" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi.chat/pitiupi.chat.iml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/src/pitiupi/chat/GUI/ChatWindow.java" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi.chat/src/pitiupi/chat/GUI/ChatWindow.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/../pitiupi.testSocket/Makefile" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/build/built-jar.properties" beforeDir="false" afterPath="$PROJECT_DIR$/build/built-jar.properties" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/build/classes/pitiupi/screenCast/GUI/ScreenCastWindow.class" beforeDir="false" afterPath="$PROJECT_DIR$/build/classes/pitiupi/screenCast/GUI/ScreenCastWindow.class" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/dist/pitiupi.screenCast.jar" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/pitiupi/screenCast/GUI/ScreenCastWindow.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/pitiupi/screenCast/GUI/ScreenCastWindow.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi/plugins/pitiupi.chat.jar" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/plugins/pitiupi.chat.jar" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi/plugins/pitiupi.screenCast.jar" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/plugins/pitiupi.screenCast.jar" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi/src/pitiupi/GUI/MainWindow.java" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/src/pitiupi/GUI/MainWindow.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi/src/pitiupi/control/HeartbeatManager.java" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/src/pitiupi/control/HeartbeatManager.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/../pitiupi/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/.idea/misc.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/../pitiupi/src/pitiupi/net/tcp/ConnectionFactory.java" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/src/pitiupi/net/tcp/ConnectionFactory.java" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -46,10 +32,12 @@
     "RunOnceActivity.ShowReadmeOnStart": "true",
     "RunOnceActivity.TerminalTabsStorage.copyFrom.TerminalArrangementManager.252": "true",
     "RunOnceActivity.git.unshallow": "true",
-    "git-widget-placeholder": "feature/unicast",
+    "RunOnceActivity.typescript.service.memoryLimit.init": "true",
+    "codeWithMe.voiceChat.enabledByDefault": "false",
+    "git-widget-placeholder": "feature/separacao-gerenciadores",
     "ignore.virus.scanning.warn.message": "true",
     "kotlin-language-version-configured": "true",
-    "last_opened_file_path": "C:/Users/extre/OneDrive/Documentos/Faculdade/2026_02/Monitoria/Pitiupi/pitiupi.screenCast",
+    "last_opened_file_path": "C:/Users/Gustavo/OneDrive/Documentos/Faculdade/2026_2/Monitoria/pitiupi/pitiupi.screenCast",
     "project.structure.last.edited": "Modules",
     "project.structure.proportion": "0.15",
     "project.structure.side.proportion": "0.2",
@@ -57,17 +45,6 @@
   }
 }]]></component>
   <component name="RunManager">
-    <configuration default="true" type="JetRunConfigurationType">
-      <module name="pitiupi.screenCast" />
-      <method v="2">
-        <option name="Make" enabled="true" />
-      </method>
-    </configuration>
-    <configuration default="true" type="KotlinStandaloneScriptRunConfigurationType">
-      <module name="pitiupi.screenCast" />
-      <option name="filePath" />
-      <method v="2" />
-    </configuration>
     <configuration default="true" type="PythonConfigurationType" factoryName="Python">
       <module name="pitiupi.screenCast" />
       <option name="ENV_FILES" value="" />
@@ -102,11 +79,23 @@
       <option name="ADD_SOURCE_ROOTS" value="true" />
       <method v="2" />
     </configuration>
+    <configuration default="true" type="JetRunConfigurationType">
+      <module name="pitiupi.screenCast" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration default="true" type="KotlinStandaloneScriptRunConfigurationType">
+      <module name="pitiupi.screenCast" />
+      <option name="filePath" />
+      <method v="2" />
+    </configuration>
   </component>
   <component name="SharedIndexes">
     <attachedChunks>
       <set>
-        <option value="bundled-jdk-9823dce3aa75-bf35d07a577b-intellij.indexing.shared.core-IU-252.28539.54" />
+        <option value="bundled-jdk-30f59d01ecdd-37e91769500f-intellij.indexing.shared.core-IU-261.26222.65" />
+        <option value="bundled-js-predefined-d6986cc7102b-31caf2ab9e3c-JavaScript-IU-261.26222.65" />
       </set>
     </attachedChunks>
   </component>
@@ -120,4 +109,7 @@
     </task>
     <servers />
   </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="3" />
+  </component>
 </project>

pitiupi.screenCast/build/built-jar.properties

@@ -1,6 +1,6 @@
-#Mon, 17 Aug 2026 14:35:40 -0300
+#Tue, 29 Sep 2026 11:04:58 -0300
 
 
-C\:\\Users\\extre\\OneDrive\\Documentos\\Faculdade\\2026_02\\Monitoria\\Pitiupi\\pitiupi.screenCast=
+C\:\\Users\\Gustavo\\OneDrive\\Documentos\\Faculdade\\2026_2\\Monitoria\\pitiupi\\pitiupi.screenCast=
 
-C\:\\Users\\extre\\OneDrive\\Documentos\\Faculdade\\2026_02\\Monitoria\\Pitiupi\\pitiupi=
+C\:\\Users\\Gustavo\\OneDrive\\Documentos\\Faculdade\\2026_2\\Monitoria\\pitiupi\\pitiupi=

pitiupi.screenCast/src/pitiupi.screenCast.iml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="module-library">
+      <library>
+        <CLASSES>
+          <root url="jar://$MODULE_DIR$/../../pitiupi/dist/pitiupi.jar!/" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

pitiupi.screenCast/src/pitiupi/screenCast/GUI/ScreenCastWindow.java

@@ -5,6 +5,8 @@
  */
 package pitiupi.screenCast.GUI;
 
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.GuiManager;
 import pitiupi.screenCast.control.AlarmClock;
 import pitiupi.screenCast.control.ImageTransformation;
 import pitiupi.screenCast.control.ScreenShot;
@@ -38,10 +40,13 @@ public class ScreenCastWindow extends javax.swing.JFrame {
     public final static int TIME = 1000;
 
     private float compressRatio;
-    private final MainWindow mainWindow;
+    private final ConnectionManager connectionManager;
+    private final GuiManager guiManager;
+
+    public ScreenCastWindow(ConnectionManager connectionManager, GuiManager guiManager) {
+        this.connectionManager = connectionManager;
+        this.guiManager = guiManager;
 
-    public ScreenCastWindow(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
         this.compressRatio = 0.5f;
         this.initComponents();
     }
@@ -91,19 +96,12 @@ public class ScreenCastWindow extends javax.swing.JFrame {
             BufferedImage image = ScreenShot.takeAShot();
             BufferedImage rescaled = ImageTransformation.resize(image, 1024, 768);
             byte[] byteImage = ImageTransformation.compress(rescaled, compressRatio);
-            ScreenCastMessage message = new ScreenCastMessage(this.mainWindow.getUserName(), byteImage);
-            msg = message.toByteArray();
+            ScreenCastMessage message = new ScreenCastMessage(this.connectionManager.getUserName(), byteImage);
+
+            if (!connectionManager.sendUdpMulticast(message)) this.compressRatio -= 0.1f;
         } catch (AWTException | IOException ex) {
             Logger.getLogger(AlarmClock.class.getName()).log(Level.SEVERE, null, ex);
         }
-        if (msg != null) {
-            try {
-                this.mainWindow.getSocketUDP().sendMulticast(msg);
-            } catch (IOException ex) {
-                System.out.println(ex.toString());
-                this.compressRatio -= 0.1f;
-            }
-        }
     }
 
     public void receiveScreenCastMessage(ScreenCastMessage message) {

pitiupi.screenCast/src/pitiupi/screenCast/plugin/ScreenCastPlugin.java

@@ -8,6 +8,8 @@ import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.ObjectInputStream;
 import pitiupi.GUI.MainWindow;
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.GuiManager;
 import pitiupi.net.Message;
 import pitiupi.plugin.Plugin;
 import pitiupi.screenCast.GUI.ScreenCastMenu;
@@ -21,7 +23,6 @@ import pitiupi.screenCast.net.ScreenCastMessage;
 public class ScreenCastPlugin implements Plugin {
 
     private ScreenCastWindow screenCastWindow;
-    private MainWindow mainWindow;
 
     @Override
     public String getName() {
@@ -39,10 +40,14 @@ public class ScreenCastPlugin implements Plugin {
     }
 
     @Override
-    public void createPlugin(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
-        this.screenCastWindow = new ScreenCastWindow(mainWindow);
-        this.mainWindow.addMenu(new ScreenCastMenu(screenCastWindow));
+    public String getIdentifier() {
+        return "Pitiupi.ScreenCast.Example";
+    }
+
+    @Override
+    public void createPlugin(ConnectionManager connectionManager, GuiManager guiManager) {
+        this.screenCastWindow = new ScreenCastWindow(connectionManager, guiManager);
+        guiManager.addMenu(new ScreenCastMenu(screenCastWindow));
     }
 
     @Override
@@ -54,9 +59,7 @@ public class ScreenCastPlugin implements Plugin {
             if (ois.readObject() instanceof ScreenCastMessage msg) {
                 this.screenCastWindow.receiveScreenCastMessage(msg);
             }
-        } catch (IOException ex) {
-            System.out.println(ex.toString());
-        } catch (ClassNotFoundException ex) {
+        } catch (IOException | ClassNotFoundException ex) {
             System.out.println(ex.toString());
         }
     }

pitiupi.testSocket/.idea/.gitignore

@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

pitiupi.testSocket/.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

pitiupi.testSocket/.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/pitiupi.testSocket.iml" filepath="$PROJECT_DIR$/pitiupi.testSocket.iml" />
+    </modules>
+  </component>
+</project>

pitiupi.testSocket/.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>

pitiupi.testSocket/out/META-INF/services/pitiupi.plugin.Plugin

@@ -1 +0,0 @@
-plugin.TestChat

pitiupi.testSocket/src/GUI/ChatMenu.java

@@ -1,84 +0,0 @@
-package GUI;
-
-import plugin.TestChat;
-
-import javax.swing.*;
-import java.awt.*;
-import java.awt.event.ActionEvent;
-import java.util.ArrayList;
-import java.util.List;
-
-public class ChatMenu extends JMenu {
-    private final TestChat testChat;
-
-    public ChatMenu(TestChat testChat) {
-        this.testChat = testChat;
-        this.setText("MP-Chat");
-
-        JMenuItem startPrivateChat = new JMenuItem("start Private Chat");
-        startPrivateChat.addActionListener(_ -> showPrivateChatDialog());
-        this.add(startPrivateChat);
-    }
-
-    public void newMenuItem(JMenuItem newMenuItem, ChatWindow chatWindow) {
-        newMenuItem.addActionListener(_ -> chatWindow.setVisible(true));
-
-        this.add(newMenuItem);
-    }
-
-    public void removeMenuItem(JMenuItem removeMenuItem) {
-        this.remove(removeMenuItem);
-    }
-
-    private void showPrivateChatDialog() {
-        JDialog dialog = new JDialog(
-                SwingUtilities.getWindowAncestor(this),
-                "Novo chat privado",
-                Dialog.ModalityType.APPLICATION_MODAL
-        );
-
-        JTextField ipField = new JTextField();
-
-        JButton startButton = new JButton("Iniciar");
-        JButton cancelButton = new JButton("Cancelar");
-
-        JPanel contentPanel = new JPanel(new BorderLayout(10, 10));
-        contentPanel.setBorder(
-                BorderFactory.createEmptyBorder(10, 10, 10, 10)
-        );
-
-        JPanel ipPanel = new JPanel(new BorderLayout(5, 5));
-        ipPanel.add(new JLabel("IP:"), BorderLayout.WEST);
-        ipPanel.add(ipField, BorderLayout.CENTER);
-
-        JPanel buttonsPanel = new JPanel(
-                new FlowLayout(FlowLayout.RIGHT)
-        );
-
-        buttonsPanel.add(cancelButton);
-        buttonsPanel.add(startButton);
-
-        JLabel errorLabel = new JLabel("Não foi possível estabelecer a conexão.");
-        errorLabel.setForeground(Color.RED);
-        errorLabel.setVisible(false);
-
-        contentPanel.add(errorLabel, BorderLayout.NORTH);
-        contentPanel.add(ipPanel, BorderLayout.CENTER);
-        contentPanel.add(buttonsPanel, BorderLayout.SOUTH);
-
-        cancelButton.addActionListener(e -> dialog.dispose());
-
-        startButton.addActionListener(e -> {
-            String ip = ipField.getText();
-
-            if (testChat.openConnection(ip)) dialog.dispose();
-            else errorLabel.setVisible(true);
-
-        });
-
-        dialog.setContentPane(contentPanel);
-        dialog.pack();
-        dialog.setLocationRelativeTo(SwingUtilities.getWindowAncestor(this));
-        dialog.setVisible(true);
-    }
-}

pitiupi.testSocket/src/GUI/ChatWindow.java

@@ -1,94 +0,0 @@
-package GUI;
-
-import net.TestChatMessage;
-import pitiupi.GUI.MainWindow;
-
-import javax.swing.*;
-import java.awt.*;
-import java.net.InetAddress;
-import java.net.UnknownHostException;
-
-public abstract class ChatWindow extends JFrame {
-
-    protected final MainWindow mainWindow;
-
-    private JTextArea receivedMessagesArea;
-    protected JTextField messageField;
-
-    public ChatWindow(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
-        initComponents();
-    }
-
-    private void initComponents() {
-        setTitle("Socket Test");
-        setSize(700, 500);
-        setLocationRelativeTo(null);
-        setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
-
-        JPanel mainPanel = new JPanel(new BorderLayout(10, 10));
-
-        mainPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
-
-        initReceivedMessagesPanel(mainPanel);
-        initBottomPanel(mainPanel);
-
-        setContentPane(mainPanel);
-    }
-
-    private void initReceivedMessagesPanel(JPanel mainPanel) {
-        receivedMessagesArea = new JTextArea();
-        receivedMessagesArea.setEditable(false);
-        receivedMessagesArea.setLineWrap(true);
-        receivedMessagesArea.setWrapStyleWord(true);
-
-        JScrollPane messagesScrollPane = new JScrollPane(receivedMessagesArea);
-
-        messagesScrollPane.setBorder(BorderFactory.createTitledBorder("Mensagens recebidas"));
-
-        mainPanel.add(messagesScrollPane, BorderLayout.CENTER);
-    }
-
-    private void initBottomPanel(JPanel mainPanel) {
-        messageField = new JTextField();
-
-        JPanel bottomPanel = new JPanel(new BorderLayout(10, 10));
-
-        bottomPanel.add(messageField, BorderLayout.CENTER);
-
-        initButtons(bottomPanel);
-
-        mainPanel.add(bottomPanel, BorderLayout.SOUTH);
-    }
-
-    protected abstract void initButtons(JPanel bottomPanel);
-
-    protected TestChatMessage createMessage(String tipoMensagem) {
-        try {
-            String nome = mainWindow.getUserName();
-            String ip = InetAddress.getLocalHost().getHostAddress();
-            String message = messageField.getText();
-
-            return new TestChatMessage(nome, ip, tipoMensagem, message);
-
-        } catch (UnknownHostException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    public void receiveMessage(TestChatMessage msg) {
-        SwingUtilities.invokeLater(() -> {
-            String mensagem = String.format(
-                    "[%s] %s (%s): %s%n",
-                    msg.getTipoMensagem(),
-                    msg.getNome(),
-                    msg.getIp(),
-                    msg.getMessage()
-            );
-
-            receivedMessagesArea.append(mensagem);
-
-            receivedMessagesArea.setCaretPosition(receivedMessagesArea.getDocument().getLength());
-        });
-    }
-}

pitiupi.testSocket/src/GUI/PrivateChatWindow.java

@@ -1,46 +0,0 @@
-package GUI;
-
-import net.TestChatMessage;
-import pitiupi.GUI.MainWindow;
-import pitiupi.net.tcp.TcpConnection;
-
-import javax.swing.*;
-import java.awt.*;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-public class PrivateChatWindow extends ChatWindow {
-
-    private final TcpConnection connection;
-
-    public PrivateChatWindow(MainWindow mainWindow, TcpConnection connection) {
-        this.connection = connection;
-
-        super(mainWindow);
-    }
-
-    @Override
-    protected void initButtons(JPanel bottomPanel) {
-        JButton tcpButton = new JButton("TCP");
-
-        tcpButton.addActionListener(e -> sendTCP());
-
-        JPanel buttonsPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT, 5, 0));
-
-        buttonsPanel.add(tcpButton);
-
-        bottomPanel.add(buttonsPanel, BorderLayout.EAST);
-    }
-
-    private void sendTCP() {
-        try {
-            TestChatMessage msg = createMessage("TCP Private");
-            connection.send(msg.toByteArray());
-
-        } catch (Exception ex) {
-            Logger.getLogger(
-                    PrivateChatWindow.class.getName()
-            ).log(Level.SEVERE, null, ex);
-        }
-    }
-}

pitiupi.testSocket/src/GUI/PublicChatWindow.java

@@ -1,93 +0,0 @@
-package GUI;
-
-import net.TestChatMessage;
-import pitiupi.GUI.MainWindow;
-
-import javax.swing.*;
-import java.awt.*;
-import java.net.InetAddress;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-public class PublicChatWindow extends ChatWindow {
-
-    private JTextField ipField;
-
-    public PublicChatWindow(MainWindow mainWindow) {
-        super(mainWindow);
-    }
-
-    @Override
-    protected void initButtons(JPanel bottomPanel) {
-        initIpField(bottomPanel);
-        initCommunicationButtons(bottomPanel);
-    }
-
-    private void initIpField(JPanel bottomPanel) {
-        ipField = new JTextField();
-        ipField.setPreferredSize(new Dimension(130, 30));
-
-        JPanel ipPanel = new JPanel(new BorderLayout(5, 5));
-
-        ipPanel.add(new JLabel("IP destino:"), BorderLayout.WEST);
-
-        ipPanel.add(ipField, BorderLayout.CENTER);
-
-        bottomPanel.add(ipPanel, BorderLayout.WEST);
-    }
-
-    private void initCommunicationButtons(JPanel bottomPanel) {
-        JButton tcpButton = new JButton("TCP");
-        JButton udpButton = new JButton("UDP");
-        JButton multicastButton = new JButton("Multicast");
-
-        tcpButton.addActionListener(e -> sendTCP());
-        udpButton.addActionListener(e -> sendUDP());
-        multicastButton.addActionListener(e -> sendMulticast());
-
-        JPanel buttonsPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT, 5, 0));
-
-        buttonsPanel.add(tcpButton);
-        buttonsPanel.add(udpButton);
-        buttonsPanel.add(multicastButton);
-
-        bottomPanel.add(buttonsPanel, BorderLayout.EAST);
-    }
-
-    private void sendTCP() {
-        try {
-            TestChatMessage msg = createMessage("TCP Unicast");
-
-            InetAddress ip = InetAddress.getByName(ipField.getText());
-
-            mainWindow.getSocketTCP().send(msg, ip);
-
-        } catch (Exception ex) {
-            Logger.getLogger(PublicChatWindow.class.getName()).log(Level.SEVERE, null, ex);
-        }
-    }
-
-    private void sendUDP() {
-        try {
-            TestChatMessage msg = createMessage("UDP Unicast");
-
-            InetAddress ip = InetAddress.getByName(ipField.getText());
-
-            mainWindow.getSocketUDP().sendUnicast(msg, ip);
-
-        } catch (Exception ex) {
-            Logger.getLogger(PublicChatWindow.class.getName()).log(Level.SEVERE, null, ex);
-        }
-    }
-
-    private void sendMulticast() {
-        try {
-            TestChatMessage msg = createMessage("UDP Multicast");
-
-            mainWindow.getSocketUDP().sendMulticast(msg);
-
-        } catch (Exception ex) {
-            Logger.getLogger(PublicChatWindow.class.getName()).log(Level.SEVERE, null, ex);
-        }
-    }
-}

pitiupi.testSocket/src/META-INF/services/pitiupi.plugin.Plugin

@@ -1 +0,0 @@
-plugin.TestChat

pitiupi.testSocket/src/control/ChatController.java

@@ -1,61 +0,0 @@
-package control;
-
-import GUI.ChatMenu;
-import GUI.ChatWindow;
-import GUI.PrivateChatWindow;
-import GUI.PublicChatWindow;
-import net.TestChatMessage;
-import pitiupi.GUI.MainWindow;
-import pitiupi.net.tcp.TcpConnection;
-
-import javax.swing.*;
-import java.util.HashMap;
-
-public class ChatController {
-    MainWindow mainWindow;
-    ChatMenu chatMenu;
-
-    PublicChatWindow publicChatWindow;
-
-    private final HashMap<TcpConnection, JMenuItem> chatMenus;
-    private final HashMap<TcpConnection, ChatWindow>  chatWindows;
-
-    public ChatController(MainWindow mainWindow, ChatMenu chatMenu) {
-        this.mainWindow = mainWindow;
-        publicChatWindow = new PublicChatWindow(mainWindow);
-
-        chatMenus = new HashMap<>();
-        chatWindows = new HashMap<>();
-
-        this.chatMenu = chatMenu;
-
-        this.chatMenu.newMenuItem(new JMenuItem("Show global chat"), publicChatWindow);
-    }
-
-    public void addChatWindow(TcpConnection tcpConnection) {
-        if (chatWindows.containsKey(tcpConnection)) return;
-
-        PrivateChatWindow newChat = new PrivateChatWindow(mainWindow, tcpConnection);
-        chatWindows.put(tcpConnection, newChat);
-        JMenuItem newMenuItem = new JMenuItem();
-        chatMenus.put(tcpConnection, newMenuItem);
-        newMenuItem.setText(tcpConnection.getAddress().toString());
-        chatMenu.newMenuItem(newMenuItem, newChat);
-    }
-
-    public void removeChatWindow(TcpConnection tcpConnection) {
-        ChatWindow removedWindow = chatWindows.remove(tcpConnection);
-        JMenuItem removedMenu = chatMenus.remove(tcpConnection);
-
-        chatMenu.removeMenuItem(removedMenu);
-        removedWindow.setVisible(false);
-        removedWindow.dispose();
-    }
-
-    public void receivePublic(TestChatMessage message) {
-        publicChatWindow.receiveMessage(message);
-    }
-    public void receivePrivate(TcpConnection tcpConnection, TestChatMessage message) {
-        chatWindows.get(tcpConnection).receiveMessage(message);
-    }
-}

pitiupi.testSocket/src/plugin/TestChat.java

@@ -1,104 +0,0 @@
-package plugin;
-
-import GUI.ChatMenu;
-import control.ChatController;
-import net.TestChatMessage;
-import pitiupi.GUI.MainWindow;
-import pitiupi.net.Message;
-import pitiupi.net.tcp.TcpConnection;
-import pitiupi.plugin.PrivateConnectionPlugin;
-
-import javax.swing.*;
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.net.InetAddress;
-
-public class TestChat implements PrivateConnectionPlugin{
-    ChatController chatController;
-    MainWindow mainWindow;
-
-    @Override
-    public String getName() {
-        return "MultiProtocol chat";
-    }
-
-    @Override
-    public String getAuthor() {
-        return "Gustavo Henrique";
-    }
-
-    @Override
-    public String getVersion() {
-        return "0";
-    }
-
-    @Override
-    public String getIdentifier() {
-        return "Multi.Protocol.Chat.Pitiupi";
-    }
-
-    @Override
-    public void createPlugin(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
-
-        ChatMenu chatMenu = new ChatMenu(this);
-        chatController = new ChatController(mainWindow, chatMenu);
-        mainWindow.addMenu(chatMenu);
-    }
-
-    @Override
-    public Message getMessage() {
-        return new TestChatMessage();
-    }
-
-    @Override
-    public void receiveMessage(byte[] message) {
-        TestChatMessage testChatMessage = parseMessage(message);
-        chatController.receivePublic(testChatMessage);
-    }
-
-
-    @Override
-    public void receivePrivateConnection(TcpConnection tcpConnection) {
-        SwingUtilities.invokeLater(() -> {
-            chatController.addChatWindow(tcpConnection);
-        });
-    }
-
-    @Override
-    public void receiveBytes(TcpConnection connection, byte[] bytes) {
-        TestChatMessage testChatMessage = parseMessage(bytes);
-        chatController.receivePrivate(connection, testChatMessage);
-    }
-
-    @Override
-    public void onSocketClosed(TcpConnection tcpConnection) {
-        chatController.removeChatWindow(tcpConnection);
-    }
-
-    public boolean openConnection(String ip) {
-        try {
-            mainWindow.getSocketTCP().createPrivateConnection(InetAddress.getByName(ip), getIdentifier(), getIdentifier());
-            return true;
-        }
-        catch (Exception e) {
-            System.out.println("Error opening connection: " + e.getMessage());
-        }
-        return false;
-    }
-
-    private TestChatMessage parseMessage(byte[] bytes) {
-        ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
-        ObjectInputStream ois;
-        try {
-            ois = new ObjectInputStream(bis);
-            if (ois.readObject() instanceof TestChatMessage msg) {
-                return msg;
-            }
-        } catch (IOException | ClassNotFoundException ex) {
-            System.out.println(ex.toString());
-        }
-        return null;
-    }
-}

pitiupi/.idea/misc.xml

@@ -1,5 +1,5 @@
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_X" default="true" project-jdk-name="openjdk-26" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_26_PREVIEW" project-jdk-name="openjdk-26" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

pitiupi/docs/Documentation.md

@@ -468,10 +468,10 @@ MeusPlugins
     |
     +---services
         |
-        +---pitiupi.plugin.Plugin
+        +---pitiupi.models.Plugin
 ```
 
-O arquivo `pitiupi.plugin.Plugin` deve conter o nome completo das classes que
+O arquivo `pitiupi.models.Plugin` deve conter o nome completo das classes que
 implementam a interface Plugin:
 
 ```

pitiupi/docs/PluginTutorial.md

@@ -1,2 +1,512 @@
-# Como criar plugins para o Share my Sheet
+# Como criar plugins para o Pitiupi
 
+Aqui serão discutidos os métodos e classes que um desenvolvedor pode ou deve usar para criar um plugin para a plataforma Pitiupi.
+
+Alguns deles estarão marcados com um <span style="color: red;">[REF]</span>, isso indica que eles estão sendo alterados para a versão 3.0 e deixarão de existir ou vão mudar consideravelmente.
+
+## GUI
+
+O Pitiupi é feito usando a biblioteca Swing do Java, por isso é altamente recomendado que os plugins também a utilizem na hora de criar sua interface gráfica, porém não é obrigatório.
+
+## Como tornar o seu plugin visível para o Pitiupi
+
+A busca por plugins é realizada em três etapas pelo pitiupi:
+
+1. Encontra todos os jars em `plugins`.
+2. Verifica o `META-INF` dos jars para saber onde estão as implementações da classe `Plugin`.
+3. Carrega o plugin no sistema.
+
+Em relação ao `META-INF`, ele deve conter um diretório `resources` e dentro dele um arquivo contendo o nome completamente qualificado da classe `Plugin` do pitiupi: 	`pitiupi.models.Plugin`, por fim dentro desse arquivo você deve colocar o nome completamente qualificado de todas as classes que implementam `Plugin` do seu projeto, um em cada linha.
+
+```
+build/
+   |---->META-INF/resources/pitiupi.models.Plugin
+   |---->MeusPlugins/...
+   |---->MinhasMensagens/...
+   |---->Restante dos .class  
+```
+
+
+```
+src/MeusPlugins/MeuPrimeiroPlugin
+src/MeusPlugins/MeuSegundoPlugin
+...
+```
+
+### Dicas
+
+- Faça um makefile que automaticamente mova o META-INF para o build/ quando você compilar uma nova versão caso ele esteja sendo alterado com frequência.
+Ex:
+```
+JAR = ../pitiupi/dist/pitiupi.jar
+BUILD_DIR = build
+META-INF_DIR = src/META-INF
+DIST = dist/mpChat.jar
+
+SOURCES = $(shell find -name "*.java")
+
+all:
+	mkdir -p "$(BUILD_DIR)"
+	mkdir -p "$(dir $(DIST))"
+	javac -cp "$(JAR)" -d "$(BUILD_DIR)" $(SOURCES)
+	cp -r "$(META-INF_DIR)" "$(BUILD_DIR)"
+	jar cf "$(DIST)" -C "$(BUILD_DIR)" .
+
+clean:
+	rm -rf "$(BUILD_DIR)"/*
+```
+
+- Para a versão 3.0 será necessário fazer o mesmo processo para as implementações da classe `Message`, então se quiser deixar preparado para a nova versão adicione `pitiupi.models.Messages.Message` em `resources` e coloque nele todas suas implementações de `Message`, assim como você fez para os de `Plugin`.
+
+## Pitiupi
+
+A classe `Pitiupi` é a interface que o seu plugin vai receber quando for criado, ela fornece os métodos necessários para interagir com a interface gráfica e comunicação para outros peers.
+
+###  boolean sendUdpMulticast(Message message)
+
+Envia uma mensagem multicast, retorna `boolean` indicando se teve sucesso.
+
+### boolean sendUdpUnicast(Message message, InetAddress address)
+
+Envia uma mensagem unicast via udp para o endereço fornecido, retorna `boolean` indicando se teve sucesso.
+
+### boolean sendTcp(Message message, InetAddress address)
+
+Envia uma mensagem unicast via tcp para o endereço fornecido, retorna `boolean` indicando se teve sucesso.
+
+### <span style="color: red;">[REF]</span> TcpConnection connectTcp(InetAddress address, String senderId, String receiverId)
+
+Pede uma conexão tcp privada para o seu plugin com outro usuário, para utilizar essa funcionalidade é necessário implementar alguns métodos opcionais em Plugin. Maisinformações serão discutidas na seção TcpConnection.
+
+### String getUserName()
+
+Retorna o nome do usuário conectado
+
+### int getPort()
+
+Retorna a porta que o usuário está usando o Pitiupi
+
+### void createMenu(MenuCategory category, Menu menu)
+
+Adiciona um menu ao pitiupi, category define em qual das categoria de Menus ele será adicionado: Jogos, Social, Streaming.
+
+Os `Menus` serão discutidos em uma seção posterior.
+
+## Classe Plugin
+
+Essa é a classe que o pitiupi vai procurar ao carregar o seu plugin, ela define um contrato de métodos que todo plugin deve possuir.
+
+### getName()
+
+Indica o nome público do plugin.
+
+### getAuthor()
+
+Indica o nome dos desenvolvedores do plugin.
+
+### getVersion()
+
+Indica a versão atual do plugin.
+
+### getIdentifier()
+
+Indica um id que o pitiupi vai utilizar para enontrar seu plugin, por isso é importante que ele seja bem especifico para evitar que dois plugins sejam confundidos durante a comunicação. Procure usar algo como: MeuPlugin.Autor.Números
+
+### createPlugin(Pitiupi pitiupi)
+
+Após o pitiupi identificar e carregar o seu plugin, ele vai chamar esse método para inicializá-lo, por isso pense nele como o construtor do seu plugin, é aqui que você inicializa atributos, adiciona os menus inciais, etc.
+
+### getMessages()
+
+Esse método indica ao pitiupi quais tipos de mensagem seu plugin quer receber, normalmente as que ele mesmo implementar.
+Nesse caso, é normal que ele faça:
+
+```
+return List.of(
+    SuaMensagem1.class, 
+    SuaMensagem2.class,
+    ...
+    );
+```
+
+Caso você queira que seu plugin receba todo tipo de mensagem, existe um método `receiveAllTypes()` que ele pode sobreescrever para receber todas mensagens
+que não sejam consideradas privadas.
+
+### receiveMessage(Message message)
+
+Esse é o método que o pitiupi vai chamar quando quiser te entregar uma mensagem pelo canal publico de mensagens. Note que ele entrega uma `Message`, então é necessário que
+seu plugin confira o tipo real ele mesmo. Como em:
+
+```
+if (message instanceOf MinhaMensagem minhaMensagem) {...}
+```
+
+O pitiupi garante que é uma mensagem de um tipo que o seu plugin diz aceitar.
+
+### <span style="color: red;">[REF]</span> métodos opcionais
+
+Os métodos a seguir possuem uma implementação padrão da própria classe que retornam false. Os três ultimos são necessários caso seu plugin deseje criar e receber conexões privadas.
+
+### <span style="color: red;">[REF]</span> receiveAllTypes()
+
+Indica ao Pitiupi que seu plugin deseja receber todas as mensagens publicas da plataforma, independente do tipo.
+
+### <span style="color: red;">[REF]</span> receivePrivateConnection(TcpConnection connection)
+
+Esse método é chamado quando o Pitiupi precisa entregar uma `TcpConnection` ao seu plugin, seja um que você pediu ou recebeu de um peer.
+
+### <span style="color: red;">[REF]</span> receiveBytes(TcpConnection connection, byte[] bytes)
+
+Esse método é chamado para entregar as mensagens recebidas por um `TcpConnection`, o tcpConnection no parametro indica qual a fonte da mensagem.
+
+### <span style="color: red;">[REF]</span> onSocketClosed(TcpConnection connection)
+
+Esse é método é chamado quando o socket de um `TcpConnection` pertencente ao plugin é fechado.
+
+## Message
+
+Essa é a classe abstrata que o pitiupi usa para comunicação nos canais publicos.
+
+<span style="color: red;">[REF]</span> Ela possui um atributo isPublic que por padrão é true, mas é possível defini-lo no construtor como false caso a mensagem deva ser privada.
+
+Essa classe implementa `Serializable` e possui um método `toByteArray` que transforma a mensagem em `byte[]`. Porém é importante notar que caso ela possua um objeto de outra classe como atributo aquela classe também deve implementar `Serializable`.
+
+## <span style="color: red;">[REF]</span> TcpConnection
+
+Representa uma conexão Tcp ativa para algum outro peer, mensagens enviadas por essa conexão não chegam ao canal publico e em vez disso vão direto para destinatário.
+
+Caso fique inativa (Sem enviar ou receber mensagens) por 5 minutos a conexão é fechada automaticamente e o dono é notificado.
+
+### <span style="color: red;">[REF]</span> void send(byte[] message)
+
+Envia um conjunto de bytes[] para o destinatario.
+
+Caso queira enviar uma `Message` chame o método toByteArray para transforma-la em bytes primeiro.
+
+### <span style="color: red;">[REF]</span> boolean isClosed()
+
+Indica se a conexão esta fechada
+
+### <span style="color: red;">[REF]</span> InetAddress getAddress()
+
+Retorna o endereço do peer que ela esta conectada.
+
+### <span style="color: red;">[REF]</span> String getReceiver()
+
+Retorna o identificador do plugin que ela esta conectada.
+
+### <span style="color: red;">[REF]</span> getReceiver()
+
+Retorna o identifador do plugin que pediu pela conexão.
+
+## Menu
+
+Essa é a classe que indica ao pitiupi que um menu deve ser adicionado a janela principal da aplicação.
+
+Menus podem ser de dois tipos `UnicastMenu` e `MulticastMenu` com a principal diferença entre eles sendo onde eles são adicionados na janela principal. Outras mudanças serão discutidas quando for relevante nas classes a seguir.
+
+Atualmente Menus não podem ser alterados uma vez que são adicionados, então é importante que eles sejam feitos com isso em mente.
+
+Tem um método `String getText()` que retorna o que deve ser escrito no Menu`.
+
+### SubMenu
+
+Permite que o `Menu` expanda em uma nova seção de menus. 
+
+`UnicastSubMenu` o método `getMenu()` retorna `List<UnicastMenu>`
+
+`MulticastSubMenu` o método `getMenu()` retorna `List<MulticastMenu>`
+
+Exemplo:
+
+```
+
+ChatCasualMulticastMenu chatCasualMulticastMenu;
+ChatEstudoMutlticastMenu chatEstudoMutlticastMenu;
+
+...
+
+@Override
+    public List<MulticastMenu> getMenus() {
+        return List.of(chatCasualMulticastMenu, chatEstudoMutlticastMenu);
+    }
+```
+
+### ActionMenu
+
+É um `Menu` que que realiza alguma ação quando selecionado pelo usuário. 
+
+`UnicastActionMenu` o método `onClick(User user)` é chamado quando selecionado pelo usuário, recebendo como parametro o peer escolhido pelo usuário.
+
+`MulticastActionMenu` o método `onClick()` é chamado quando selecionado pelo usuário.
+
+Exemplo:
+
+```
+
+@Override
+    public void onClick(User user) {
+        callManager.openCallWindow(user);
+    }
+```
+
+## Exemplo de plugin no pitiupi:
+
+### Plugin
+
+Implementa o contrato de plugin.
+
+Inicializa a janela principal e cria os menus.
+
+Também define quais tipos de mensagem ele quer receber.
+
+```
+public class ChatPlugin extends Plugin {
+
+    private ChatWindow chatWindow;
+
+   @Override
+    public void createPlugin(Pitiupi pitiupi) {
+        this.chatWindow = new ChatWindow(pitiupi);
+        pitiupi.createMenu(MenuCategory.Social, new ChatMenu(chatWindow));
+    }
+
+
+    @Override
+    public List<Class<? extends Message>> getMessages() {
+        return List.of(ChatMessage.class);
+    }
+
+
+    @Override
+    public void receiveMessage(Message message) {
+        if (message instanceof ChatMessage msg) {
+            this.chatWindow.receiveChatMessage(msg);
+        }
+    }
+
+    @Override
+    public String getName() {
+        return "Chat";
+    }
+
+    @Override
+    public String getAuthor() {
+        return "Flávio Schiavoni";
+    }
+
+    @Override
+    public String getVersion() {
+        return "0";
+    }
+
+    @Override
+    public String getIdentifier() {
+        return "Pitiupi.Chat.Example.123456";
+    }
+}
+```
+
+### Message
+
+Implementa uma mensagem customizada que o plugin vai utilizar para comunicação.
+
+```
+public class ChatMessage extends Message {
+
+    private String text;
+    private String name;
+
+
+    public ChatMessage(){
+        
+    }
+
+    public ChatMessage(String name, String text){
+        this.name = name;
+        this.text = text;
+    }
+    /**
+     * @return the name
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * @param name the name to set
+     */
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    /**
+     * @return the text
+     */
+    public String getText() {
+        return text;
+    }
+
+    /**
+     * @param text the text to set
+     */
+    public void setText(String text) {
+        this.text = text;
+    }
+}
+```
+
+### Menus
+
+Implementa os dois menus de Multicast utilizados pela aplicação.
+
+#### ActionMenu
+
+Esse menu apenas abre a janela principal do plugin.
+
+```
+public class ChatMulticastMenu extends MulticastActionMenu {
+    ChatWindow chatWindow;
+
+    public ChatMulticastMenu(ChatWindow chatWindow) {
+        this.chatWindow = chatWindow;
+    }
+
+    @Override
+    public String getText() {
+        return "Show Chat Window";
+    }
+
+    @Override
+    public void onClick() {
+        chatWindow.setVisible(true);
+    }
+}
+```
+
+Esse menu abre a seção de menus do plugin Chat.
+
+#### SubMenu
+
+```
+public class ChatMenu extends MulticastSubMenu {
+    ChatMulticastMenu chatMulticastMenu;
+
+    public ChatMenu(ChatWindow chatWindow) {
+        this.chatMulticastMenu = new ChatMulticastMenu(chatWindow);
+    }
+
+    @Override
+    public String getText() {
+        return "Chat";
+    }
+
+    @Override
+    public List<MulticastMenu> getMenus() {
+        return List.of(chatMulticastMenu);
+    }
+}
+```
+
+### GUI
+
+Essa é a janela principal do plugin de chat.
+
+```
+public class ChatWindow extends JDialog {
+
+    private JButton jButton1;
+    private JEditorPane jEditorPane1;
+    private JPanel jPanel1;
+    private JPanel jPanel2;
+    private JScrollPane jScrollPane1;
+    private JScrollPane jScrollPane2;
+    private JSplitPane jSplitPane1;
+    private JTextArea jTextArea1;
+
+    private final Pitiupi pitiupi;
+
+	public ChatWindow(Pitiupi pitiupi) {
+          this.pitiupi = pitiupi;
+          initComponents();
+	}
+    /**
+     * This method is called from within the constructor to initialize the form.
+     * WARNING: Do NOT modify this code. The content of this method is always
+     * regenerated by the Form Editor.
+     */
+    private void initComponents() {
+
+        this.setDefaultCloseOperation(WindowConstants.HIDE_ON_CLOSE);
+        this.setTitle("Chat Window");
+        this.setBounds(new java.awt.Rectangle(0, 0, 800, 600));
+        this.getContentPane().setLayout(new java.awt.BorderLayout(5, 5));
+        this.setPreferredSize(new java.awt.Dimension(800, 600));
+
+        jSplitPane1 = new JSplitPane();
+        jScrollPane1 = new JScrollPane();
+        jEditorPane1 = new JEditorPane();
+        jPanel1 = new JPanel();
+        jScrollPane2 = new JScrollPane();
+        jTextArea1 = new JTextArea();
+        jPanel2 = new JPanel();
+        jButton1 = new JButton();
+
+        jSplitPane1.setDividerLocation(500);
+        jSplitPane1.setOrientation(JSplitPane.VERTICAL_SPLIT);
+        jEditorPane1.setContentType("text/html");
+        jPanel1.setLayout(new java.awt.BorderLayout());
+        jTextArea1.setColumns(20);
+        jTextArea1.setRows(5);
+        jTextArea1.addKeyListener(new java.awt.event.KeyAdapter() {
+            @Override
+            public void keyTyped(java.awt.event.KeyEvent evt) {
+                if (evt.getKeyChar() == '\n') {
+                    sendMessage();
+                }
+            }
+        });
+        jButton1.setText("Send");
+
+        jScrollPane1.setViewportView(jEditorPane1);
+        jScrollPane2.setViewportView(jTextArea1);
+        jSplitPane1.setTopComponent(jScrollPane1);
+
+        jPanel1.add(jScrollPane2, java.awt.BorderLayout.CENTER);
+        jPanel2.setLayout(new java.awt.FlowLayout(java.awt.FlowLayout.RIGHT));
+        jButton1.addActionListener((java.awt.event.ActionEvent evt) -> {
+            sendMessage();
+        });
+        jPanel2.add(jButton1);
+        jPanel1.add(jPanel2, java.awt.BorderLayout.PAGE_END);
+        jSplitPane1.setRightComponent(jPanel1);
+        getContentPane().add(jSplitPane1, java.awt.BorderLayout.CENTER);
+        pack();
+    }
+
+    private void sendMessage() {
+        if (jTextArea1.getText().trim().isEmpty()) {
+            return;
+        }
+        ChatMessage message = new ChatMessage(pitiupi.getUserName(), jTextArea1.getText());
+        this.sendChatMessage(message);
+        jTextArea1.setText("");
+    }
+
+    public void sendChatMessage(Message message) {
+        pitiupi.sendUdpMulticast(message);
+    }
+
+    public void receiveChatMessage(ChatMessage message) {
+        SimpleDateFormat dt = new SimpleDateFormat("dd/MM/yyyyy hh:mm:ss");
+        Date date = new Date();
+        this.receiveChatMessage(dt.format(date) + " "
+                + "<b>" + message.getName() + "</b>: "
+                + message.getText() + "<br>");
+    }
+
+    public void receiveChatMessage(String message) {
+        jEditorPane1.setText(message + jEditorPane1.getText());
+    }
+}
+```

pitiupi/nbproject/project.properties

@@ -46,8 +46,8 @@ javac.modulepath=
 javac.processormodulepath=
 javac.processorpath=\
     ${javac.classpath}
-javac.source=25
-javac.target=25
+javac.source=17
+javac.target=17
 javac.test.classpath=\
     ${javac.classpath}:\
     ${build.classes.dir}

pitiupi/src/pitiupi/GUI/MainWindow.java

@@ -5,14 +5,13 @@
  */
 package pitiupi.GUI;
 
-import pitiupi.net.tcp.SocketTCP;
-import pitiupi.net.udp.SocketUDP;
-import java.util.ArrayList;
-import java.util.List;
-import javax.swing.JMenu;
-import pitiupi.control.PluginLoader;
-import pitiupi.plugin.Plugin;
-import pitiupi.control.HeartbeatManager;
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.GuiManager;
+import pitiupi.control.plugins.PluginManager;
+
+import javax.swing.*;
+
+import java.awt.*;
 
 /**
  * Janela principal da aplicação.
@@ -28,28 +27,15 @@ import pitiupi.control.HeartbeatManager;
  * @author tony
  * @author Gustavo
  */
-public class MainWindow extends javax.swing.JFrame {
+public class MainWindow extends JFrame {
 
-    private final MenuBar menuBar;
-    private javax.swing.JScrollPane jScrollPane1;
-    private javax.swing.JLabel status;
-    private javax.swing.JPanel statusPanel;
-    private javax.swing.JTabbedPane tabbedPane;
+    private MenuBar menuBar;
+    private JLabel status;
+    OnlineUsersPanel onlineUsersPanel;
 
-    private HeartbeatManager heartbeatManager;
-    private OnlineUsersPanel onlineUsersPanel;
-
-
-    private SocketUDP socketUDP;
-    private SocketTCP socketTCP;
-
-    private String userName;
-    private int port;
-
-    private String pitiupiIdentifier;
-
-    private PluginLoader pluginManager;
-    private final List<Plugin> plugins;
+    private final ConnectionManager connectionManager;
+    private final PluginManager pluginManager;
+    private final GuiManager guiManager;
 
     /**
      * Cria a janela principal da aplicação.
@@ -58,62 +44,53 @@ public class MainWindow extends javax.swing.JFrame {
      * @param port porta utilizada na comunicação multicast.
      */
     public MainWindow(String userName, int port) {
-        this.userName = userName;
-        this.port = port;
-        this.pitiupiIdentifier = "Pitiupi.Alice.2026";
-        this.menuBar = new MenuBar(this);
-        this.plugins = new ArrayList<>();
-        this.initComponents();
-    }
+        initMenu();
+
+        pluginManager = new PluginManager();
+        connectionManager = new ConnectionManager(this, userName, pluginManager, port);
+
+        initUserPanel();
+        initStatusPanel();
+
+        guiManager = new GuiManager(this, menuBar, onlineUsersPanel);
+
+        loadPlugins();
+
+        this.pack();
 
-    private void initComponents() {
-        initGUI();
-        initSocket();
-        initHeartbeat();
-        initPlugins();
         this.setSize(new java.awt.Dimension(1024, 768));
     }
 
-    private void initGUI() {
+    private void initMenu() {
+        menuBar = new MenuBar(this);
+
         this.setJMenuBar(menuBar);
         this.setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
-        this.setTitle("Share My Sheet");
+        this.setTitle("Pitiupi");
 
-        jScrollPane1 = new javax.swing.JScrollPane();
-        tabbedPane = new javax.swing.JTabbedPane();
-        statusPanel = new javax.swing.JPanel();
-        status = new javax.swing.JLabel();
+        javax.swing.JScrollPane jScrollPane1 = new javax.swing.JScrollPane();
+        javax.swing.JTabbedPane tabbedPane = new javax.swing.JTabbedPane();
 
         jScrollPane1.setViewportView(tabbedPane);
-        statusPanel.setLayout(new java.awt.FlowLayout(java.awt.FlowLayout.RIGHT));
-        status.setText("Connected on port " + this.port + " name " + this.userName);
-        statusPanel.add(status);
 
         this.getContentPane().add(jScrollPane1, java.awt.BorderLayout.CENTER);
-        this.getContentPane().add(statusPanel, java.awt.BorderLayout.PAGE_END);
-
-        this.pack();
     }
 
-    private void initSocket() {
-        this.socketUDP = new SocketUDP(this);
-        this.socketTCP = new SocketTCP(this);
-
-        this.socketUDP.start();
-        this.socketTCP.start();
+    private void initUserPanel() {
+        onlineUsersPanel = new OnlineUsersPanel();
+        this.connectionManager.addPeerListener(onlineUsersPanel);
+        this.getContentPane().add(onlineUsersPanel, java.awt.BorderLayout.LINE_END);
     }
 
-    private void initHeartbeat() {
-        this.heartbeatManager = new HeartbeatManager(this);
-        this.onlineUsersPanel = new OnlineUsersPanel();
-        this.heartbeatManager.addPeerListener(this.onlineUsersPanel);
-        this.getContentPane().add(this.onlineUsersPanel, java.awt.BorderLayout.LINE_END);
-        this.heartbeatManager.start();
-    }
+    private void initStatusPanel() {
+        JPanel statusPanel = new JPanel();
+        status = new JLabel();
 
-    private void initPlugins() {
-        this.pluginManager = new PluginLoader(this);
-        this.pluginManager.loadPlugins();
+        statusPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
+        updateStatus();
+        statusPanel.add(status);
+
+        this.getContentPane().add(statusPanel, BorderLayout.PAGE_END);
     }
 
     public void exit() {
@@ -122,65 +99,21 @@ public class MainWindow extends javax.swing.JFrame {
         System.exit(0);
     }
 
-    public HeartbeatManager getHeartbeatManager() {
-        return heartbeatManager;
+    public ConnectionManager getConnectionManager() {
+        return connectionManager;
     }
 
-    public String getUserName(){
-        return this.userName;
-    }
-
-    public String getIdentifier(){
-        return this.pitiupiIdentifier;
-    }
-    
-    public void addMenu(JMenu menu) {
-        this.menuBar.addPlugin(menu);
-    }
-
-    public int getPort() {
-        return this.port;
-    }
-
-    public SocketUDP getSocketUDP() {
-        return this.socketUDP;
-    }
-
-    public SocketTCP getSocketTCP() {
-        return this.socketTCP;
-    }
-
-    public List<Plugin> getPlugins() {
-        return plugins;
+    public void loadPlugins() {
+        pluginManager.loadPlugins(connectionManager, guiManager);
     }
 
     public void setUserName(String userName) {
-        this.userName = userName;
-        updateStatus();
-    }
-
-    public void setPort(int port) {
-        this.port = port;
-        reconnect();
+        connectionManager.setUserName(userName);
         updateStatus();
     }
 
     private void updateStatus() {
-        this.status.setText("Connected on port " + this.port + " name " + this.userName);
+        this.status.setText("Connected on port " + connectionManager.getPort() + " name " + connectionManager.getUserName());
     }
 
-    private void reconnect() {
-        if (this.socketUDP != null) {
-            this.socketUDP.close();
-        }
-        if (this.socketTCP != null) {
-            this.socketTCP.close();
-        }
-
-        this.socketUDP = new SocketUDP(this);
-        this.socketTCP = new SocketTCP(this);
-
-        this.socketUDP.start();
-        this.socketTCP.start();
-    }
 }

pitiupi/src/pitiupi/GUI/MenuBar.java

@@ -5,8 +5,14 @@
  */
 package pitiupi.GUI;
 
-import javax.swing.JMenu;
-import javax.swing.JMenuBar;
+import pitiupi.models.Menus.MenuCategory;
+
+import javax.swing.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.InputEvent;
+import java.awt.event.KeyEvent;
+import java.util.HashMap;
+import java.util.Map;
 
 /**
  * Barra de menus principal da aplicação.
@@ -21,12 +27,14 @@ import javax.swing.JMenuBar;
  */
 public class MenuBar extends JMenuBar {
 
-    private javax.swing.JMenuItem setupMenu;
-    private javax.swing.JMenuItem aboutMenu;
-    private javax.swing.JMenu fileMenu;
-    private javax.swing.JMenu helpMenu;
-    private javax.swing.JMenu pluginMenu;
-    private javax.swing.JMenuItem exitMenu;
+    private JMenuItem preferencesMenu;
+    private JMenuItem aboutMenu;
+    private JMenu fileMenu;
+    private JMenu helpMenu;
+    private JMenu pluginMenu;
+    private Map<MenuCategory, JMenu> categories;
+
+    private JMenuItem exitMenu;
     private final MainWindow mainWindow;
 
     /**
@@ -40,63 +48,69 @@ public class MenuBar extends JMenuBar {
     }
 
     private void initComponents() {
-        fileMenu = new javax.swing.JMenu();
-        exitMenu = new javax.swing.JMenuItem();
-        helpMenu = new javax.swing.JMenu();
-        pluginMenu = new javax.swing.JMenu();
-        setupMenu = new javax.swing.JMenuItem();
-        aboutMenu = new javax.swing.JMenuItem();
+        initFileMenu();
+        initPluginMenu();
+        initHelpMenu();
+    }
 
-        fileMenu.setText("File");
-        exitMenu.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_F4, java.awt.event.InputEvent.ALT_MASK));
-        exitMenu.setText("Exit");
+    private void initFileMenu() {
+        fileMenu = new JMenu("File");
+        exitMenu = new JMenuItem("Exit");
+
+        exitMenu.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F4, InputEvent.ALT_DOWN_MASK));
         exitMenu.addActionListener(this::exitMenuActionPerformed);
         fileMenu.add(exitMenu);
         this.add(fileMenu);
+    }
+
+    private void initPluginMenu() {
+        pluginMenu = new JMenu("Plugin");
+        categories = new HashMap<>();
+
+        for (MenuCategory category : MenuCategory.values()) {
+            JMenu newCategoryMenu = new JMenu(category.toString());
+
+            pluginMenu.add(newCategoryMenu);
+            categories.put(category, newCategoryMenu);
+        }
 
-        pluginMenu.setText("Plugin");
         this.add(pluginMenu);
+    }
 
-        helpMenu.setText("Help");
+    private void initHelpMenu() {
+        helpMenu = new JMenu("Help");
+        preferencesMenu = new JMenuItem("Preferences");
+        aboutMenu = new JMenuItem("About");
 
-        setupMenu.setText("Preferences");
-        setupMenu.addActionListener(this::setupMenuActionPerformed);
-        helpMenu.add(setupMenu);
+        preferencesMenu.addActionListener(this::setupMenuActionPerformed);
+        helpMenu.add(preferencesMenu);
 
-        aboutMenu.setText("About");
         aboutMenu.addActionListener(this::aboutMenuActionPerformed);
         helpMenu.add(aboutMenu);
 
         this.add(helpMenu);
     }
 
-    private void exitMenuActionPerformed(java.awt.event.ActionEvent evt) {
+    private void exitMenuActionPerformed(ActionEvent evt) {
         mainWindow.exit();
     }
 
-
-   private void setupMenuActionPerformed(java.awt.event.ActionEvent evt) {
+   private void setupMenuActionPerformed(ActionEvent evt) {
         Login login = new Login();
         login.setVisible(true);
 
         mainWindow.setUserName(login.getName());
-        mainWindow.setPort(login.getPort());
+        mainWindow.getConnectionManager().setPort(login.getPort());
 
         login.dispose();
     }
 
-    private void aboutMenuActionPerformed(java.awt.event.ActionEvent evt) {
+    private void aboutMenuActionPerformed(ActionEvent evt) {
         About about = new About();
         about.setVisible(true);
     }
 
-    /**
-     * Adiciona um menu fornecido por um plugin à seção de plugins da barra
-     * de menus.
-     *
-     * @param menu menu criado pelo plugin.
-     */
-    public void addPlugin(JMenu menu){
-     this.pluginMenu.add(menu);
+    public void addPluginMenu(MenuCategory category, JMenuItem menu){
+        categories.get(category).add(menu);
     }
 }

pitiupi/src/pitiupi/GUI/OnlineUsersPanel.java

@@ -2,14 +2,16 @@ package pitiupi.GUI;
 
 import java.awt.BorderLayout;
 import java.awt.Dimension;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.util.HashMap;
 import java.util.List;
-import javax.swing.BorderFactory;
-import javax.swing.DefaultListModel;
-import javax.swing.JList;
-import javax.swing.JPanel;
-import javax.swing.JScrollPane;
-import javax.swing.SwingUtilities;
-import pitiupi.control.PeerInfo;
+import java.util.Map;
+import java.util.function.Consumer;
+import javax.swing.*;
+
+import pitiupi.models.Menus.MenuCategory;
+import pitiupi.models.User;
 import pitiupi.control.PeerListener;
 
 /**
@@ -20,10 +22,16 @@ import pitiupi.control.PeerListener;
  */
 public class OnlineUsersPanel extends JPanel implements PeerListener {
 
-    private final DefaultListModel<String> listModel;
-    private final JList<String> userList;
+    private final DefaultListModel<User> listModel;
+    private final JList<User> userList;
+    JPopupMenu menu;
+    private Map<MenuCategory, JMenu> categories;
 
     public OnlineUsersPanel() {
+        menu = new JPopupMenu();
+        categories = new HashMap<>();
+        initMenu();
+
         setLayout(new BorderLayout());
         setBorder(BorderFactory.createTitledBorder("Online"));
         setPreferredSize(new Dimension(160, 0));
@@ -31,6 +39,48 @@ public class OnlineUsersPanel extends JPanel implements PeerListener {
         listModel = new DefaultListModel<>();
         userList = new JList<>(listModel);
         add(new JScrollPane(userList), BorderLayout.CENTER);
+
+        setupUserListActions();
+    }
+
+    private void initMenu() {
+        for (MenuCategory category : MenuCategory.values()) {
+            JMenu newCategory = new JMenu(category.toString());
+
+            menu.add(newCategory);
+            categories.put(category, newCategory);
+        }
+    }
+
+    private void setupUserListActions() {
+        userList.addMouseListener(new MouseAdapter() {
+
+            @Override
+            public void mouseClicked(MouseEvent e) {
+                int index = userList.locationToIndex(e.getPoint());
+
+                if (index == -1) {
+                    return;
+                }
+
+                userList.setSelectedIndex(index);
+                menu.show(userList, e.getX(), e.getY());
+            }
+        });
+    }
+
+    public void initUnicastMenu(JMenuItem menuItem, Consumer<User> action) {
+        menuItem.addActionListener(e -> {
+            User user = userList.getSelectedValue();
+
+            if (user != null) {
+                action.accept(user);
+            }
+        });
+    }
+
+    public void addUnicastMenu(MenuCategory category, JMenuItem menuItem) {
+        categories.get(category).add(menuItem);
     }
 
     /**
@@ -39,11 +89,11 @@ public class OnlineUsersPanel extends JPanel implements PeerListener {
      * @param peers lista atualizada de usuários ativos na rede.
      */
     @Override
-    public void onPeersChanged(List<PeerInfo> peers) {
+    public void onPeersChanged(List<User> peers) {
         SwingUtilities.invokeLater(() -> {
             listModel.clear();
-            for (PeerInfo peer : peers) {
-                listModel.addElement(peer.toString());
+            for (User peer : peers) {
+                listModel.addElement(peer);
             }
         });
     }

pitiupi/src/pitiupi/control/ConnectionManager.java

@@ -0,0 +1,113 @@
+package pitiupi.control;
+
+import pitiupi.GUI.MainWindow;
+import pitiupi.control.plugins.PluginManager;
+import pitiupi.models.Messages.HeartbeatMessage;
+import pitiupi.models.Messages.Message;
+import pitiupi.net.tcp.SocketTCP;
+import pitiupi.net.tcp.TcpConnection;
+import pitiupi.net.udp.SocketUDP;
+
+import java.net.InetAddress;
+
+public class ConnectionManager {
+    private final String pitiupiIdentifier;
+
+    private final PluginManager pluginManager;
+
+    private final HeartbeatManager heartbeatManager;
+
+    private SocketTCP socketTCP;
+    private SocketUDP socketUDP;
+    private String username;
+    private int port;
+
+    public ConnectionManager(MainWindow main, String username, PluginManager pluginManager, int port) {
+        this.pluginManager = pluginManager;
+
+        this.username = username;
+        this.port = port;
+
+        pitiupiIdentifier = "Pitiupi.Alice.2026";
+
+        reconnect();
+
+        heartbeatManager = new HeartbeatManager(this);
+        heartbeatManager.start();
+    }
+
+    public TcpConnection connectPluginTcp(InetAddress destinationAdress, String senderId, String receiverId) {
+        return socketTCP.createPrivateConnection(destinationAdress, senderId, receiverId);
+    }
+
+    public boolean sendTcp(Message message, InetAddress destinationAddress) {
+        return socketTCP.send(message, destinationAddress);
+    }
+
+    public boolean sendUdpUnicast(Message message, InetAddress destinationAddress) {
+        try {
+            socketUDP.sendUnicast(message, destinationAddress);
+            return true;
+        } catch (Exception ex) {
+            return false;
+        }
+    }
+
+    public boolean sendUdpMulticast(Message message) {
+        try {
+            socketUDP.sendMulticast(message);
+            return true;
+        } catch (Exception e) {
+            System.err.println("Error sending UDP Multicast");
+        }
+        return false;
+    }
+
+    public void broadcastLocal(byte[] message) {
+        pluginManager.handleMessage(message);
+    }
+
+    public void addPeerListener(PeerListener peerListener) {
+        heartbeatManager.addPeerListener(peerListener);
+    }
+
+    public void receiveHeartbeat(HeartbeatMessage message, InetAddress destinationAddress) {
+        heartbeatManager.receiveHeartbeat(message, destinationAddress);
+    }
+
+    public void setPort(int port) {
+        this.port = port;
+        reconnect();
+    }
+
+    public int getPort() {
+        return port;
+    }
+
+    public String getIdentifier(){
+        return this.pitiupiIdentifier;
+    }
+
+    private void reconnect() {
+        if (this.socketUDP != null) {
+            this.socketUDP.close();
+        }
+        if (this.socketTCP != null) {
+            this.socketTCP.close();
+        }
+
+        this.socketUDP = new SocketUDP(this, pluginManager);
+        this.socketTCP = new SocketTCP(this, pluginManager);
+
+        this.socketUDP.start();
+        this.socketTCP.start();
+    }
+
+    public String getUserName() {
+        return this.username;
+    }
+
+    public void setUserName(String userName) {
+        this.username = userName;
+    }
+}

pitiupi/src/pitiupi/control/GuiManager.java

@@ -0,0 +1,82 @@
+package pitiupi.control;
+
+import pitiupi.GUI.MainWindow;
+import pitiupi.GUI.MenuBar;
+import pitiupi.GUI.OnlineUsersPanel;
+import pitiupi.models.Menus.*;
+import pitiupi.models.Menus.MulticastMenus.MulticastActionMenu;
+import pitiupi.models.Menus.MulticastMenus.MulticastMenu;
+import pitiupi.models.Menus.MulticastMenus.MulticastSubMenu;
+import pitiupi.models.Menus.UnicastMenus.UnicastActionMenu;
+import pitiupi.models.Menus.UnicastMenus.UnicastMenu;
+import pitiupi.models.Menus.UnicastMenus.UnicastSubMenu;
+
+import javax.swing.*;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class GuiManager {
+    private MainWindow mainWindow;
+    private MenuBar menuBar;
+    private OnlineUsersPanel onlineUsersPanel;
+
+    private Logger logger;
+
+    public GuiManager(MainWindow mainWindow, MenuBar menuBar,  OnlineUsersPanel onlineUsersPanel) {
+        this.mainWindow = mainWindow;
+        this.menuBar = menuBar;
+        this.onlineUsersPanel = onlineUsersPanel;
+        this.logger = Logger.getLogger(GuiManager.class.getName());
+    }
+
+    public void createMenu(MenuCategory category, Menu menu) {
+        try {
+            JMenuItem newMenu = buildMenu(menu);
+            if (menu instanceof MulticastMenu) {
+                menuBar.addPluginMenu(category, newMenu);
+            }
+            if (menu instanceof UnicastMenu) {
+                onlineUsersPanel.addUnicastMenu(category, newMenu);
+            }
+        }
+        catch (IllegalArgumentException e) {
+            logger.log(Level.WARNING, e.getMessage());
+        }
+    }
+    private JMenuItem buildMenu(Menu menu) {
+        if (menu instanceof MulticastSubMenu multicastSubMenu) {
+            JMenu newMenu = new JMenu(menu.getText());
+
+            for (Menu child : multicastSubMenu.getMenus()) {
+                newMenu.add(buildMenu(child));
+            }
+
+            return newMenu;
+        }
+
+        if (menu instanceof UnicastSubMenu unicastSubMenu) {
+            JMenu newMenu = new JMenu(menu.getText());
+
+            for (Menu child : unicastSubMenu.getMenus()) {
+                newMenu.add(buildMenu(child));
+            }
+
+            return newMenu;
+        }
+
+        if (menu instanceof MulticastActionMenu multicastActionMenu) {
+            JMenuItem newMenu = new JMenuItem(menu.getText());
+            newMenu.addActionListener(e -> multicastActionMenu.onClick());
+            return newMenu;
+        }
+
+        if  (menu instanceof UnicastActionMenu unicastActionMenu) {
+            JMenuItem newMenu = new JMenuItem(menu.getText());
+
+            onlineUsersPanel.initUnicastMenu(newMenu, unicastActionMenu::onClick);
+            return newMenu;
+        }
+
+        throw new IllegalArgumentException("Invalid menu type");
+    }
+}

pitiupi/src/pitiupi/control/HeartbeatManager.java

@@ -1,6 +1,5 @@
 package pitiupi.control;
 
-import java.io.IOException;
 import java.net.InetAddress;
 import java.util.ArrayList;
 import java.util.List;
@@ -10,10 +9,9 @@ import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-import pitiupi.GUI.MainWindow;
-import pitiupi.net.HeartbeatMessage;
+
+import pitiupi.models.User;
+import pitiupi.models.Messages.HeartbeatMessage;
 import java.util.UUID;
 /**
  * Gerencia o mecanismo de heartbeat da aplicação.
@@ -28,9 +26,8 @@ public class HeartbeatManager {
 
     private static final long HEARTBEAT_INTERVAL_MS = 5000;
     private static final long PEER_TIMEOUT_MS = 15000; // ~3 batimentos perdidos
-
-    private final MainWindow mainWindow;
-    private final Map<String, PeerInfo> peers = new ConcurrentHashMap<>();
+    private final ConnectionManager connectionManager;
+    private final Map<String, User> peers = new ConcurrentHashMap<>();
     private final List<PeerListener> listeners = new CopyOnWriteArrayList<>();
     private ScheduledExecutorService scheduler;
     private final String instanceId = UUID.randomUUID().toString();
@@ -38,11 +35,9 @@ public class HeartbeatManager {
     /**
      * Cria um gerenciador de heartbeat associado à janela principal da aplicação.
      *
-     * @param mainWindow janela principal utilizada para obter o nome do usuário
-     * e o socket de comunicação.
      */
-    public HeartbeatManager(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
+    public HeartbeatManager(ConnectionManager connectionManager) {
+        this.connectionManager = connectionManager;
     }
 
     /**
@@ -64,12 +59,8 @@ public class HeartbeatManager {
     }
 
     private void announce() {
-        try {
-            HeartbeatMessage msg = new HeartbeatMessage(mainWindow.getUserName(), instanceId);
-            mainWindow.getSocketUDP().sendMulticast(msg);
-        } catch (IOException ex) {
-            Logger.getLogger(HeartbeatManager.class.getName()).log(Level.WARNING, "Falha ao enviar heartbeat", ex);
-        }
+        HeartbeatMessage msg = new HeartbeatMessage(connectionManager.getUserName(), instanceId);
+        connectionManager.sendUdpMulticast(msg);
     }
 
     // Chamado pelo Socket quando um pacote é identificado como heartbeat
@@ -94,7 +85,7 @@ public class HeartbeatManager {
         String key =  msg.getInstanceId();
         boolean isNew = !peers.containsKey(key);
 
-        PeerInfo peer = peers.computeIfAbsent(key, k -> new PeerInfo(msg.getUserName(), from, msg.getTimestamp()));
+        User peer = peers.computeIfAbsent(key, k -> new User(msg.getUserName(), from, msg.getTimestamp()));
         peer.touch(System.currentTimeMillis());
 
         if (isNew) {
@@ -111,7 +102,7 @@ public class HeartbeatManager {
     }
 
     private void notifyListeners() {
-        List<PeerInfo> snapshot = new ArrayList<>(peers.values());
+        List<User> snapshot = new ArrayList<>(peers.values());
         for (PeerListener l : listeners) {
             l.onPeersChanged(snapshot);
         }
@@ -144,7 +135,7 @@ public class HeartbeatManager {
      *
      * @return lista contendo os peers atualmente conhecidos.
      */
-    public List<PeerInfo> getPeers() {
+    public List<User> getPeers() {
         return new ArrayList<>(peers.values());
     }
 }

pitiupi/src/pitiupi/control/PeerListener.java

@@ -1,5 +1,7 @@
 package pitiupi.control;
 
+import pitiupi.models.User;
+
 import java.util.List;
 
 /**
@@ -17,5 +19,5 @@ public interface PeerListener {
      *
      * @param peers lista atualizada de usuários ativos.
      */
-    void onPeersChanged(List<PeerInfo> peers);
+    void onPeersChanged(List<User> peers);
 }

pitiupi/src/pitiupi/control/PluginLoader.java

@@ -1,74 +0,0 @@
-/*
- * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
- * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
- */
-package pitiupi.control;
-
-import java.awt.List;
-import java.io.File;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.net.URLClassLoader;
-import java.util.ArrayList;
-import java.util.ServiceLoader;
-import java.util.Vector;
-import pitiupi.GUI.MainWindow;
-import pitiupi.Main;
-import pitiupi.plugin.Plugin;
-
-/**
- * Responsável por localizar, carregar e registrar os plugins
- * presentes no diretório {@code plugins}.
- *
- * <p>Os plugins são descobertos utilizando {@link java.util.ServiceLoader}
- * e devem estar empacotados como arquivos JAR contendo a configuração
- * {@code META-INF/services} correspondente.</p>
- * @author flavio
- */
-public class PluginLoader {
-
-    private final pitiupi.GUI.MainWindow mainWindow;
-
-    public PluginLoader(MainWindow main) {
-        this.mainWindow = main;
-    }
-
-    public void loadPlugins() {
-        File pluginDir = new File("plugins");
-        File[] jarFiles = pluginDir.listFiles((dir, name) -> name.endsWith(".jar"));
-
-        if (jarFiles == null || jarFiles.length == 0) {
-            System.out.println("No plugins found in the " + pluginDir.getAbsolutePath() + " directory.");
-            return;
-        }
-
-        try {
-            // 2. Convert jar file paths into URLs
-            ArrayList urls = new ArrayList();
-            for (File file : jarFiles) {
-                urls.add(file.toURI().toURL());
-                System.out.println("Discovered plugin package: " + file.getName());
-            }
-
-            // 3. Create a class loader isolated from the application's default loader
-            URLClassLoader pluginClassLoader = new URLClassLoader(
-                    (URL[])urls.toArray(new URL[0]),
-                    Main.class.getClassLoader()
-            );
-            System.out.println(pluginClassLoader);
-
-            // 4. Locate and instantiate all classes implementing the Plugin interface
-            ServiceLoader<Plugin> serviceLoader = ServiceLoader.load(Plugin.class, pluginClassLoader);
-
-            System.out.println("\n--- Executing Discovered Plugins ---" + serviceLoader.findFirst());
-            for (Plugin plugin : serviceLoader) {
-                System.out.println("Loading: " + plugin.getName());
-                plugin.createPlugin(this.mainWindow);
-                this.mainWindow.getPlugins().add(plugin);
-            }
-
-        } catch (MalformedURLException e) {
-            System.out.println(e.toString());
-        }
-    }
-}

pitiupi/src/pitiupi/control/plugins/LoadedPlugin.java

@@ -0,0 +1,22 @@
+package pitiupi.control.plugins;
+
+import pitiupi.models.Plugin;
+
+class LoadedPlugin {
+
+    private final Plugin plugin;
+    private final ClassLoader classLoader;
+
+    public LoadedPlugin(Plugin plugin, ClassLoader classLoader) {
+        this.plugin = plugin;
+        this.classLoader = classLoader;
+    }
+
+    public Plugin getPlugin() {
+        return plugin;
+    }
+
+    public ClassLoader getClassLoader() {
+        return classLoader;
+    }
+}

pitiupi/src/pitiupi/control/plugins/PluginManager.java

@@ -0,0 +1,156 @@
+package pitiupi.control.plugins;
+
+import pitiupi.plugin.Pitiupi;
+import pitiupi.Main;
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.GuiManager;
+import pitiupi.models.Messages.Message;
+import pitiupi.net.tcp.TcpConnection;
+import pitiupi.models.Plugin;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.ServiceLoader;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class PluginManager {
+    private final List<LoadedPlugin> loadedPlugins;
+    private final HashSet<String> loadedJars;
+
+    private final Logger logger;
+
+    public PluginManager() {
+        this.loadedPlugins = new ArrayList<>();
+        this.loadedJars = new HashSet<>();
+
+        logger = Logger.getLogger(getClass().getName());
+    }
+
+    public void handleMessage(byte[] msg) {
+        Message message = null;
+
+        for (LoadedPlugin loadedPlugin : loadedPlugins) {
+            message = deserialize(msg, loadedPlugin.getClassLoader());
+            if (message != null) break;
+        }
+        if (message == null) return;
+
+        for (LoadedPlugin loadedPlugin : loadedPlugins) {
+            Plugin plugin = loadedPlugin.getPlugin();
+
+            if (plugin.receiveAllTypes() && message.isPublic()) {
+                plugin.receiveMessage(message);
+                continue;
+            }
+
+            for (Class<? extends Message> messageType : plugin.getMessages()) {
+                if (messageType.isInstance(message)) {
+                    plugin.receiveMessage(message);
+                    break;
+                }
+            }
+        }
+    }
+
+    private Plugin getPlugin(String pluginId) {
+        for (LoadedPlugin loadedPlugin : loadedPlugins) {
+            if (loadedPlugin.getPlugin().getIdentifier().equals(pluginId)) {
+                return loadedPlugin.getPlugin();
+            }
+        }
+        return null;
+    }
+
+    public void handleMessageFromConnection(TcpConnection connection, byte[] msg) {
+        Plugin plugin = getPlugin(connection.getReceiver());
+        if (plugin == null) return;
+
+        plugin.receiveBytes(connection, msg);
+    }
+
+    public boolean handleConnection(TcpConnection connection, String receiverId) {
+        Plugin plugin = getPlugin(receiverId);
+        if (plugin == null) return false;
+
+        plugin.receivePrivateConnection(connection);
+
+        return true;
+    }
+
+    public void handleDisconnection(TcpConnection connection, String receiverId) {
+        Plugin plugin = getPlugin(receiverId);
+        if (plugin == null) return;
+
+        plugin.onSocketClosed(connection);
+    }
+
+    public void loadPlugins(ConnectionManager connectionManager, GuiManager guiManager) {
+        File pluginDir = new File("plugins");
+        File[] jarFiles = pluginDir.listFiles((dir, name) -> name.endsWith(".jar"));
+	Pitiupi pitiupi = new Pitiupi(connectionManager, guiManager);
+
+        if (jarFiles == null || jarFiles.length == 0) {
+            System.out.println("No plugins found in the " + pluginDir.getAbsolutePath() + " directory.");
+            return;
+        }
+
+        for (File file : jarFiles) {
+
+            if (loadedJars.contains(file.getName())) {
+                continue;
+            }
+
+            System.out.println("Discovered plugin package: " + file.getName());
+
+            try {
+                URLClassLoader classLoader = new URLClassLoader(
+                        new URL[]{file.toURI().toURL()},
+                        Main.class.getClassLoader()
+                );
+
+                ServiceLoader<Plugin> serviceLoader = ServiceLoader.load(Plugin.class, classLoader);
+
+                for (Plugin plugin : serviceLoader) {
+                    LoadedPlugin loadedPlugin = new LoadedPlugin(plugin, classLoader);
+
+                    plugin.createPlugin(pitiupi);
+                    loadedPlugins.add(loadedPlugin);
+                    loadedJars.add(file.getName());
+                }
+
+            } catch (Exception e) {
+                logger.log(Level.WARNING, "Failed to load plugin " + file.getName(), e);
+            }
+        }
+    }
+
+    private Message deserialize(byte[] data, ClassLoader classLoader) {
+        try {
+            ByteArrayInputStream input = new ByteArrayInputStream(data);
+
+            PluginObjectInputStream objectInput = new PluginObjectInputStream(input, classLoader);
+
+            Object object = objectInput.readObject();
+
+            if (!(object instanceof Message)) {
+                return null;
+            }
+
+            return (Message) object;
+        }
+        catch (ClassNotFoundException e) {
+            return null;
+        }
+        catch (IOException e) {
+            logger.log(Level.SEVERE, "Failed to load plugin package", e);
+            return null;
+        }
+    }
+}

pitiupi/src/pitiupi/control/plugins/PluginObjectInputStream.java

@@ -0,0 +1,20 @@
+package pitiupi.control.plugins;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectStreamClass;
+
+public class PluginObjectInputStream extends ObjectInputStream {
+    private final ClassLoader classLoader;
+
+    public PluginObjectInputStream(InputStream input, ClassLoader classLoader) throws IOException {
+        super(input);
+        this.classLoader = classLoader;
+    }
+
+    @Override
+    protected Class<?> resolveClass(ObjectStreamClass description) throws ClassNotFoundException {
+        return Class.forName(description.getName(), false, classLoader);
+    }
+}

pitiupi/src/pitiupi/models/Menus/Menu.java

@@ -0,0 +1,5 @@
+package pitiupi.models.Menus;
+
+public abstract class Menu {
+    public abstract String getText();
+}

pitiupi/src/pitiupi/models/Menus/MenuCategory.java

@@ -0,0 +1,7 @@
+package pitiupi.models.Menus;
+
+public enum MenuCategory {
+    Jogos,
+    Social,
+    Streaming
+}

pitiupi/src/pitiupi/models/Menus/MulticastMenus/MulticastActionMenu.java

@@ -0,0 +1,5 @@
+package pitiupi.models.Menus.MulticastMenus;
+
+public abstract class MulticastActionMenu extends MulticastMenu{
+    public abstract void onClick();
+}

pitiupi/src/pitiupi/models/Menus/MulticastMenus/MulticastMenu.java

@@ -0,0 +1,9 @@
+package pitiupi.models.Menus.MulticastMenus;
+
+import pitiupi.models.Menus.Menu;
+
+public abstract class MulticastMenu extends Menu {
+    MulticastMenu() {
+        super();
+    }
+}

pitiupi/src/pitiupi/models/Menus/MulticastMenus/MulticastSubMenu.java

@@ -0,0 +1,7 @@
+package pitiupi.models.Menus.MulticastMenus;
+
+import java.util.List;
+
+public abstract class MulticastSubMenu extends MulticastMenu{
+    public abstract List<MulticastMenu> getMenus();
+}

pitiupi/src/pitiupi/models/Menus/UnicastMenus/UnicastActionMenu.java

@@ -0,0 +1,7 @@
+package pitiupi.models.Menus.UnicastMenus;
+
+import pitiupi.models.User;
+
+public abstract class UnicastActionMenu extends UnicastMenu{
+    public abstract void onClick(User user);
+}

pitiupi/src/pitiupi/models/Menus/UnicastMenus/UnicastMenu.java

@@ -0,0 +1,8 @@
+package pitiupi.models.Menus.UnicastMenus;
+
+import pitiupi.models.Menus.Menu;
+import pitiupi.models.User;
+
+public abstract class UnicastMenu extends Menu {
+    UnicastMenu() {}
+}

pitiupi/src/pitiupi/models/Menus/UnicastMenus/UnicastSubMenu.java

@@ -0,0 +1,7 @@
+package pitiupi.models.Menus.UnicastMenus;
+
+import java.util.List;
+
+public abstract class UnicastSubMenu extends UnicastMenu{
+    public abstract List<UnicastMenu> getMenus();
+}

pitiupi/src/pitiupi/models/Messages/HeartbeatMessage.java

@@ -1,4 +1,4 @@
-package pitiupi.net;
+package pitiupi.models.Messages;
 
 /**
  * Mensagem utilizada para sinalizar a presença de um usuário na rede.

pitiupi/src/pitiupi/models/Messages/InfoMessage.java

@@ -1,6 +1,6 @@
-package pitiupi.net.tcp;
+package pitiupi.models.Messages;
 
-import pitiupi.net.Message;
+import pitiupi.net.tcp.TcpConnection;
 
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
@@ -8,12 +8,11 @@ import java.io.ObjectInputStream;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-public class SysInfoMessage extends Message {
-
-    private final SysInfoType type;
+public class InfoMessage extends Message {
+    private final InfoType type;
     private final String message;
 
-    public SysInfoMessage(String message, SysInfoType type) {
+    public InfoMessage(String message, InfoType type) {
         this.message = message;
         this.type = type;
     }
@@ -22,29 +21,29 @@ public class SysInfoMessage extends Message {
         return message;
     }
 
-    public SysInfoType getType() {
+    public InfoType getType() {
         return type;
     }
 
-    public static void sendSystemInfo(TcpConnection connection, SysInfoType type, String description) {
+    public static void sendSystemInfo(TcpConnection connection, InfoType type, String description) {
         try {
-            SysInfoMessage error = new SysInfoMessage(description, type);
+            InfoMessage error = new InfoMessage(description, type);
             connection.send(error.toByteArray());
         } catch (IOException ex) {
-            Logger.getLogger(SysInfoMessage.class.getName()).log(Level.WARNING, null, ex);
+            Logger.getLogger(InfoMessage.class.getName()).log(Level.WARNING, null, ex);
         }
     }
 
-    public static SysInfoMessage parseSystemInfo(byte[] bytes) {
+    public static InfoMessage parseSystemInfo(byte[] bytes) {
         try (ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
              ObjectInputStream ois = new ObjectInputStream(bis)) {
 
             Object object = ois.readObject();
-            if (object instanceof SysInfoMessage) {
-                return (SysInfoMessage) object;
+            if (object instanceof InfoMessage) {
+                return (InfoMessage) object;
             }
         } catch (IOException | ClassNotFoundException ex) {
-            Logger.getLogger(SysInfoMessage.class.getName()).log(Level.WARNING, null, ex);
+            Logger.getLogger(InfoMessage.class.getName()).log(Level.WARNING, null, ex);
         }
         return null;
     }

pitiupi/src/pitiupi/models/Messages/InfoType.java

@@ -1,6 +1,6 @@
-package pitiupi.net.tcp;
+package pitiupi.models.Messages;
 
-public enum SysInfoType {
+public enum InfoType {
     CONNECTION_REJECTED,
     RECEIVER_NOT_FOUND,
     MESSAGE_REJECTED,