Multiplayer support (#221)

* First pass on multiplayer

* Apply review suggestions

* Dedicated Enigma server

* Don't jump to references when other users do stuff

* Better UI + translations

* french translation

* Apply review suggestions

* Document the protocol

* Fix most issues with scrolling.

* Apply review suggestions

* Fix zip hash issues + add a bit more logging

* Optimize zip hash

* Fix a couple of login bugs

* Add message log and user list

* Make Message an abstract class

* Make status bar work, add chat box

* Hide message log/users list when not connected

* Fix status bar not resetting entirely

* Run stop server task on server thread to prevent multithreading race conditions

* Add c2s message to packet id list

* Fix message scroll bar not scrolling to the end

* Formatting

* User list size -> ushort

* Combine contains and remove check

* Check removal before sending packet

* Add password to login packet

* Fix the GUI closing the rename text field when someone else renames something

* Update fr_fr.json

* oups

* Make connection/server create dialogs not useless if it fails once

* Refactor UI state updating

* Fix imports

* Fix Collab menu

* Fix NPE when rename not allowed

* Make the log file a configurable option

* Don't use modified UTF

* Update fr_fr.json

* Bump version to 0.15.4

* Apparently I can't spell neither words nor semantic versions

Co-authored-by: Yanis48 <doublecraft.official@gmail.com>
Co-authored-by: 2xsaiko <git@dblsaiko.net>

2 files changed, 147 insertions, 0 deletions

diff --git a/src/main/java/cuchaz/enigma/gui/dialog/ConnectToServerDialog.java b/src/main/java/cuchaz/enigma/gui/dialog/ConnectToServerDialog.java
new file mode 100644
index 0000000..c5f505c
--- /dev/null
+++ b/src/main/java/cuchaz/enigma/gui/dialog/ConnectToServerDialog.java
@@ -0,0 +1,82 @@
+package cuchaz.enigma.gui.dialog;
+
+import cuchaz.enigma.network.EnigmaServer;
+import cuchaz.enigma.utils.I18n;
+
+import javax.swing.*;
+import java.awt.Frame;
+
+public class ConnectToServerDialog {
+
+        public static Result show(Frame parentComponent) {
+                JTextField usernameField = new JTextField(System.getProperty("user.name"), 20);
+                JPanel usernameRow = new JPanel();
+                usernameRow.add(new JLabel(I18n.translate("prompt.connect.username")));
+                usernameRow.add(usernameField);
+                JTextField ipField = new JTextField(20);
+                JPanel ipRow = new JPanel();
+                ipRow.add(new JLabel(I18n.translate("prompt.connect.ip")));
+                ipRow.add(ipField);
+                JTextField portField = new JTextField(String.valueOf(EnigmaServer.DEFAULT_PORT), 10);
+                JPanel portRow = new JPanel();
+                portRow.add(new JLabel(I18n.translate("prompt.port")));
+                portRow.add(portField);
+                JPasswordField passwordField = new JPasswordField(20);
+                JPanel passwordRow = new JPanel();
+                passwordRow.add(new JLabel(I18n.translate("prompt.password")));
+                passwordRow.add(passwordField);
+
+                int response = JOptionPane.showConfirmDialog(parentComponent, new Object[]{usernameRow, ipRow, portRow, passwordRow}, I18n.translate("prompt.connect.title"), JOptionPane.OK_CANCEL_OPTION);
+                if (response != JOptionPane.OK_OPTION) {
+                        return null;
+                }
+
+                String username = usernameField.getText();
+                String ip = ipField.getText();
+                int port;
+                try {
+                        port = Integer.parseInt(portField.getText());
+                } catch (NumberFormatException e) {
+                        JOptionPane.showMessageDialog(parentComponent, I18n.translate("prompt.port.nan"), I18n.translate("prompt.connect.title"), JOptionPane.ERROR_MESSAGE);
+                        return null;
+                }
+                if (port < 0 || port >= 65536) {
+                        JOptionPane.showMessageDialog(parentComponent, I18n.translate("prompt.port.invalid"), I18n.translate("prompt.connect.title"), JOptionPane.ERROR_MESSAGE);
+                        return null;
+                }
+                char[] password = passwordField.getPassword();
+
+                return new Result(username, ip, port, password);
+        }
+
+        public static class Result {
+                private final String username;
+                private final String ip;
+                private final int port;
+                private final char[] password;
+
+                public Result(String username, String ip, int port, char[] password) {
+                        this.username = username;
+                        this.ip = ip;
+                        this.port = port;
+                        this.password = password;
+                }
+
+                public String getUsername() {
+                        return username;
+                }
+
+                public String getIp() {
+                        return ip;
+                }
+
+                public int getPort() {
+                        return port;
+                }
+
+                public char[] getPassword() {
+                        return password;
+                }
+        }
+
+}
diff --git a/src/main/java/cuchaz/enigma/gui/dialog/CreateServerDialog.java b/src/main/java/cuchaz/enigma/gui/dialog/CreateServerDialog.java
new file mode 100644
index 0000000..eea1dff
--- /dev/null
+++ b/src/main/java/cuchaz/enigma/gui/dialog/CreateServerDialog.java
@@ -0,0 +1,65 @@
+package cuchaz.enigma.gui.dialog;
+
+import cuchaz.enigma.network.EnigmaServer;
+import cuchaz.enigma.utils.I18n;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class CreateServerDialog {
+
+        public static Result show(Frame parentComponent) {
+                JTextField portField = new JTextField(String.valueOf(EnigmaServer.DEFAULT_PORT), 10);
+                JPanel portRow = new JPanel();
+                portRow.add(new JLabel(I18n.translate("prompt.port")));
+                portRow.add(portField);
+                JPasswordField passwordField = new JPasswordField(20);
+                JPanel passwordRow = new JPanel();
+                passwordRow.add(new JLabel(I18n.translate("prompt.password")));
+                passwordRow.add(passwordField);
+
+                int response = JOptionPane.showConfirmDialog(parentComponent, new Object[]{portRow, passwordRow}, I18n.translate("prompt.create_server.title"), JOptionPane.OK_CANCEL_OPTION);
+                if (response != JOptionPane.OK_OPTION) {
+                        return null;
+                }
+
+                int port;
+                try {
+                        port = Integer.parseInt(portField.getText());
+                } catch (NumberFormatException e) {
+                        JOptionPane.showMessageDialog(parentComponent, I18n.translate("prompt.port.nan"), I18n.translate("prompt.create_server.title"), JOptionPane.ERROR_MESSAGE);
+                        return null;
+                }
+                if (port < 0 || port >= 65536) {
+                        JOptionPane.showMessageDialog(parentComponent, I18n.translate("prompt.port.invalid"), I18n.translate("prompt.create_server.title"), JOptionPane.ERROR_MESSAGE);
+                        return null;
+                }
+
+                char[] password = passwordField.getPassword();
+                if (password.length > EnigmaServer.MAX_PASSWORD_LENGTH) {
+                        JOptionPane.showMessageDialog(parentComponent, I18n.translate("prompt.password.too_long"), I18n.translate("prompt.create_server.title"), JOptionPane.ERROR_MESSAGE);
+                        return null;
+                }
+
+                return new Result(port, password);
+        }
+
+        public static class Result {
+                private final int port;
+                private final char[] password;
+
+                public Result(int port, char[] password) {
+                        this.port = port;
+                        this.password = password;
+                }
+
+                public int getPort() {
+                        return port;
+                }
+
+                public char[] getPassword() {
+                        return password;
+                }
+        }
+
+}