feat: add more basic env checks at init

7 files changed, 71 insertions, 14 deletions

diff --git a/src/ui/UserInterfaceUtils.cpp b/src/ui/UserInterfaceUtils.cpp
index ed76824a..b5747b9f 100644
--- a/src/ui/UserInterfaceUtils.cpp
+++ b/src/ui/UserInterfaceUtils.cpp
@@ -167,6 +167,14 @@ void CommonUtils::RaiseMessageBox(QWidget *parent, GpgError err) {
   }
 }
 
+void CommonUtils::RaiseMessageBoxNotSupported(QWidget *parent) {
+  QMessageBox::warning(
+      parent, QObject::tr("Operation Not Supported"),
+      QObject::tr(
+          "The current GnuPG version is too low and does not support this "
+          "operation. Please upgrade your GnuPG version to continue."));
+}
+
 void CommonUtils::RaiseFailureMessageBox(QWidget *parent, GpgError err,
                                          const QString &msg) {
   GpgErrorDesc desc = DescribeGpgErrCode(err);
diff --git a/src/ui/UserInterfaceUtils.h b/src/ui/UserInterfaceUtils.h
index b544ffc3..86b83e7f 100644
--- a/src/ui/UserInterfaceUtils.h
+++ b/src/ui/UserInterfaceUtils.h
@@ -113,6 +113,13 @@ class CommonUtils : public QWidget {
    *
    * @param err
    */
+  static void RaiseMessageBoxNotSupported(QWidget* parent);
+
+  /**
+   * @brief
+   *
+   * @param err
+   */
   static void RaiseFailureMessageBox(QWidget* parent, GpgError err,
                                      const QString& msg = {});
 
diff --git a/src/ui/dialog/key_generate/KeyGenerateDialog.cpp b/src/ui/dialog/key_generate/KeyGenerateDialog.cpp
index d738029d..df8b5232 100644
--- a/src/ui/dialog/key_generate/KeyGenerateDialog.cpp
+++ b/src/ui/dialog/key_generate/KeyGenerateDialog.cpp
@@ -49,8 +49,9 @@ KeyGenerateDialog::KeyGenerateDialog(int channel, QWidget* parent)
       ui_(QSharedPointer<Ui_KeyGenDialog>::create()),
       gen_key_info_(QSharedPointer<KeyGenerateInfo>::create()),
       gen_subkey_info_(nullptr),
-      supported_primary_key_algos_(KeyGenerateInfo::GetSupportedKeyAlgo()),
-      supported_subkey_algos_(KeyGenerateInfo::GetSupportedSubkeyAlgo()),
+      supported_primary_key_algos_(
+          KeyGenerateInfo::GetSupportedKeyAlgo(channel)),
+      supported_subkey_algos_(KeyGenerateInfo::GetSupportedSubkeyAlgo(channel)),
       channel_(channel) {
   ui_->setupUi(this);
 
@@ -146,6 +147,10 @@ KeyGenerateDialog::KeyGenerateDialog(int channel, QWidget* parent)
   this->setWindowTitle(tr("Generate Key"));
   this->setAttribute(Qt::WA_DeleteOnClose);
   this->setModal(true);
+
+  this->show();
+  this->raise();
+  this->activateWindow();
 }
 
 void KeyGenerateDialog::slot_key_gen_accept() {
diff --git a/src/ui/dialog/key_generate/SubkeyGenerateDialog.cpp b/src/ui/dialog/key_generate/SubkeyGenerateDialog.cpp
index fd592733..68c68765 100644
--- a/src/ui/dialog/key_generate/SubkeyGenerateDialog.cpp
+++ b/src/ui/dialog/key_generate/SubkeyGenerateDialog.cpp
@@ -50,7 +50,8 @@ SubkeyGenerateDialog::SubkeyGenerateDialog(int channel, GpgKeyPtr key,
       current_gpg_context_channel_(channel),
       key_(std::move(key)),
       gen_subkey_info_(QSharedPointer<KeyGenerateInfo>::create(true)),
-      supported_subkey_algos_(KeyGenerateInfo::GetSupportedSubkeyAlgo()) {
+      supported_subkey_algos_(KeyGenerateInfo::GetSupportedSubkeyAlgo(
+          current_gpg_context_channel_)) {
   ui_->setupUi(this);
   assert(key_ != nullptr);
 
@@ -88,6 +89,10 @@ SubkeyGenerateDialog::SubkeyGenerateDialog(int channel, GpgKeyPtr key,
 
   set_signal_slot_config();
   refresh_widgets_state();
+
+  this->show();
+  this->raise();
+  this->activateWindow();
 }
 
 void SubkeyGenerateDialog::set_signal_slot_config() {
diff --git a/src/ui/dialog/keypair_details/KeyPairSubkeyTab.cpp b/src/ui/dialog/keypair_details/KeyPairSubkeyTab.cpp
index 73e7f4e5..b8942b94 100644
--- a/src/ui/dialog/keypair_details/KeyPairSubkeyTab.cpp
+++ b/src/ui/dialog/keypair_details/KeyPairSubkeyTab.cpp
@@ -66,6 +66,11 @@ KeyPairSubkeyTab::KeyPairSubkeyTab(int channel, GpgKeyPtr key, QWidget* parent)
     add_adsk_button->hide();
   }
 
+  if (!CheckGpgVersion(channel, "2.4.1")) {
+    add_adsk_button->setDisabled(true);
+    add_adsk_button->hide();
+  }
+
   uid_buttons_layout->addWidget(add_subkey_button, 0, 0);
   uid_buttons_layout->addWidget(add_adsk_button, 0, 1);
 
@@ -277,9 +282,12 @@ void KeyPairSubkeyTab::slot_refresh_subkey_list() {
 }
 
 void KeyPairSubkeyTab::slot_add_subkey() {
-  auto* dialog =
-      new SubkeyGenerateDialog(current_gpg_context_channel_, key_, this);
-  dialog->show();
+  if (!CheckGpgVersion(current_gpg_context_channel_, "2.2.0")) {
+    CommonUtils::RaiseMessageBoxNotSupported(this);
+    return;
+  }
+
+  new SubkeyGenerateDialog(current_gpg_context_channel_, key_, this);
 }
 
 void KeyPairSubkeyTab::slot_add_adsk() {
diff --git a/src/ui/main_window/KeyMgmt.cpp b/src/ui/main_window/KeyMgmt.cpp
index e3128231..f9364ecf 100644
--- a/src/ui/main_window/KeyMgmt.cpp
+++ b/src/ui/main_window/KeyMgmt.cpp
@@ -428,12 +428,20 @@ void KeyMgmt::SlotExportKeyToClipboard() {
 }
 
 void KeyMgmt::SlotGenerateKeyDialog() {
-  (new KeyGenerateDialog(key_list_->GetCurrentGpgContextChannel(), this))
-      ->exec();
-  this->raise();
+  if (!CheckGpgVersion(key_list_->GetCurrentGpgContextChannel(), "2.2.0")) {
+    CommonUtils::RaiseMessageBoxNotSupported(this);
+    return;
+  }
+
+  new KeyGenerateDialog(key_list_->GetCurrentGpgContextChannel(), this);
 }
 
 void KeyMgmt::SlotGenerateSubKey() {
+  if (!CheckGpgVersion(key_list_->GetCurrentGpgContextChannel(), "2.2.0")) {
+    CommonUtils::RaiseMessageBoxNotSupported(this);
+    return;
+  }
+
   auto key = key_list_->GetSelectedGpgKey();
   if (key == nullptr) return;
 
@@ -444,10 +452,7 @@ void KeyMgmt::SlotGenerateSubKey() {
     return;
   }
 
-  (new SubkeyGenerateDialog(key_list_->GetCurrentGpgContextChannel(), key,
-                            this))
-      ->exec();
-  this->raise();
+  new SubkeyGenerateDialog(key_list_->GetCurrentGpgContextChannel(), key, this);
 }
 
 void KeyMgmt::SlotExportAsOpenSSHFormat() {
diff --git a/src/ui/main_window/MainWindow.cpp b/src/ui/main_window/MainWindow.cpp
index 104f54d8..4b5c71f5 100644
--- a/src/ui/main_window/MainWindow.cpp
+++ b/src/ui/main_window/MainWindow.cpp
@@ -31,6 +31,8 @@
 #include "core/function/GlobalSettingStation.h"
 #include "core/model/SettingsObject.h"
 #include "core/module/ModuleManager.h"
+#include "core/utils/CommonUtils.h"
+#include "core/utils/GpgUtils.h"
 #include "ui/UISignalStation.h"
 #include "ui/main_window/GeneralMainWindow.h"
 #include "ui/struct/settings_object/AppearanceSO.h"
@@ -115,6 +117,24 @@ void MainWindow::Init() noexcept {
             &UISignalStation::SignalMainWindowOpenFile, this,
             &MainWindow::SlotOpenFile);
 
+#if defined(__linux__)
+    connect(this, &MainWindow::SignalLoaded, this, [=]() {
+      QTimer::singleShot(3000, [self = QPointer<MainWindow>(this)]() {
+        if (self != nullptr && DecidePinentry().isEmpty() && !IsFlatpakENV()) {
+          QMessageBox::warning(
+              self, QObject::tr("Pinentry Not Found"),
+              QObject::tr(
+                  "No suitable pinentry program was found on your system.\n\n"
+                  "Please install 'pinentry-qt' or another compatible pinentry "
+                  "(e.g., pinentry-gnome3, pinentry-gtk2).\n\n"
+                  "Without it, GnuPG cannot prompt for passwords.\n\n"
+                  "Once you have installed it, please restart GpgFrontend. "
+                  "The configuration file will be updated automatically."));
+        }
+      });
+    });
+#endif
+
     popup_menu_ = new QMenu(this);
 
     popup_menu_->addAction(append_selected_keys_act_);
@@ -152,7 +172,6 @@ void MainWindow::Init() noexcept {
     // loading process is done
     emit SignalLoaded();
     Module::TriggerEvent("APPLICATION_LOADED");
-
   } catch (...) {
     LOG_W() << tr("Critical error occur while loading GpgFrontend.");
     QMessageBox::critical(