<refactor>(src): Move and split the Global Settings Station

1. Move Global Settings Station to core
2. Separate the logic of DataObject
3. Resolve dependencies

1 files changed, 73 insertions, 0 deletions

diff --git a/src/core/function/PassphraseGenerator.h b/src/core/function/PassphraseGenerator.h
new file mode 100644
index 00000000..5e55b2dd
--- /dev/null
+++ b/src/core/function/PassphraseGenerator.h
@@ -0,0 +1,73 @@
+/**
+ * Copyright (C) 2021 Saturneric
+ *
+ * This file is part of GpgFrontend.
+ *
+ * GpgFrontend is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GpgFrontend is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The initial version of the source code is inherited from
+ * the gpg4usb project, which is under GPL-3.0-or-later.
+ *
+ * All the source code of GpgFrontend was modified and released by
+ * Saturneric<[email protected]> starting on May 12, 2021.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ */
+
+#ifndef GPGFRONTEND_PASSPHRASEGENERATOR_H
+#define GPGFRONTEND_PASSPHRASEGENERATOR_H
+
+#include "core/GpgFrontendCore.h"
+#include "core/GpgFunctionObject.h"
+
+namespace GpgFrontend {
+
+/**
+ * @brief The PassphraseGenerator class
+ *
+ * This class is used to generate a passphrase.
+ */
+class PassphraseGenerator
+    : public SingletonFunctionObject<PassphraseGenerator> {
+ public:
+
+  /**
+   * @brief PassphraseGenerator constructor
+   *
+   * @param channel The channel to use
+   */
+  explicit PassphraseGenerator(
+      int channel = SingletonFunctionObject::GetDefaultChannel())
+      : SingletonFunctionObject<PassphraseGenerator>(channel) {}
+
+  /**
+   * @brief generate passphrase
+   *
+   * @param len length of the passphrase
+   * @return std::string passphrase
+   */
+  std::string Generate(int len) {
+    std::uniform_int_distribution<int> dist(999, 99999);
+    auto file_string = boost::format("KeyPackage_%1%") % dist(mt_);
+    return file_string.str();
+  }
+
+  std::random_device rd_;                  ///< Random device
+  std::mt19937 mt_ = std::mt19937(rd_());  ///< Mersenne twister
+};
+
+}  // namespace GpgFrontend
+
+#endif  // GPGFRONTEND_PASSPHRASEGENERATOR_H