fix: screensettingsDialog, do not allow aliases to be ip addresses

fixes: #8952

src/lib/gui/CMakeLists.txt

@@ -110,6 +110,8 @@ add_library(${target} STATIC
   validators/SpacesValidator.h
   validators/ValidationError.cpp
   validators/ValidationError.h
+  validators/IpAddressValidator.cpp
+  validators/IpAddressValidator.h
   widgets/FingerprintPreview.cpp
   widgets/FingerprintPreview.h
   widgets/KeySequenceWidget.cpp

src/lib/gui/validators/AliasValidator.cpp

@@ -7,6 +7,7 @@
 #include "AliasValidator.h"
 
 #include "ComputerNameValidator.h"
+#include "IpAddressValidator.h"
 #include "SpacesValidator.h"
 
 #include <QRegularExpression>
@@ -16,6 +17,7 @@ namespace validators {
 AliasValidator::AliasValidator(QLineEdit *parent, ValidationError *error) : LineEditValidator(parent, error)
 {
   addValidator(std::make_unique<SpacesValidator>("Computer name cannot contain spaces"));
+  addValidator(std::make_unique<IpAddressValidator>("Aliases may not be ip addresses"));
   addValidator(std::make_unique<ComputerNameValidator>("Contains invalid characters or is too long"));
 }
 

src/lib/gui/validators/IpAddressValidator.cpp

@@ -0,0 +1,25 @@
+/*
+ * Deskflow -- mouse and keyboard sharing utility
+ * SPDX-FileCopyrightText: (C) 2025 Chris Rizzitello <sithlord48@gmail.com>
+ * SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
+ */
+
+#include "IpAddressValidator.h"
+
+namespace validators {
+
+IpAddressValidator::IpAddressValidator(const QString &message) : IStringValidator(message)
+{
+  // do nothing
+}
+
+bool IpAddressValidator::validate(const QString &input) const
+{
+  static const auto sIpRegex = QRegularExpression(
+      R"((\b25[0-5]|\b2[0-4][0-9]|\b[01]?[0-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3})"
+  );
+  const auto match = sIpRegex.match(input);
+  return !match.hasMatch();
+}
+
+} // namespace validators

src/lib/gui/validators/IpAddressValidator.h

@@ -0,0 +1,21 @@
+/*
+ * Deskflow -- mouse and keyboard sharing utility
+ * SPDX-FileCopyrightText: (C) 2025 Chris Rizzitello <sithlord48@gmail.com>
+ * SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
+ */
+
+#pragma once
+
+#include "IStringValidator.h"
+#include <QRegularExpression>
+
+namespace validators {
+
+class IpAddressValidator : public IStringValidator
+{
+public:
+  explicit IpAddressValidator(const QString &message);
+  bool validate(const QString &input) const override;
+};
+
+} // namespace validators