refactor: improve the code structure of core

1 files changed, 86 insertions, 0 deletions

diff --git a/src/core/utils/CommonUtils.cpp b/src/core/utils/CommonUtils.cpp
new file mode 100644
index 00000000..0eb4933e
--- /dev/null
+++ b/src/core/utils/CommonUtils.cpp
@@ -0,0 +1,86 @@
+/**
+ * Copyright (C) 2021 Saturneric <[email protected]>
+ *
+ * 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
+ *
+ */
+
+#include "CommonUtils.h"
+
+#include <boost/algorithm/string.hpp>
+#include <boost/lexical_cast.hpp>
+
+namespace GpgFrontend {
+
+auto BeautifyFingerprint(BypeArrayConstRef fingerprint) -> std::string {
+  auto len = fingerprint.size();
+  std::stringstream out;
+  decltype(len) count = 0;
+  while (count < len) {
+    if ((count != 0U) && !(count % 5)) out << " ";
+    out << fingerprint[count];
+    count++;
+  }
+  return out.str();
+}
+
+auto CompareSoftwareVersion(const std::string& a, const std::string& b) -> int {
+  auto remove_prefix = [](const std::string& version) {
+    return version.front() == 'v' ? version.substr(1) : version;
+  };
+
+  std::string real_version_a = remove_prefix(a);
+  std::string real_version_b = remove_prefix(b);
+
+  std::vector<std::string> split_a;
+  std::vector<std::string> split_b;
+  boost::split(split_a, real_version_a, boost::is_any_of("."));
+  boost::split(split_b, real_version_b, boost::is_any_of("."));
+
+  const auto min_depth = std::min(split_a.size(), split_b.size());
+
+  for (auto i = 0U; i < min_depth; ++i) {
+    int num_a = 0;
+    int num_b = 0;
+
+    try {
+      num_a = boost::lexical_cast<int>(split_a[i]);
+      num_b = boost::lexical_cast<int>(split_b[i]);
+    } catch (boost::bad_lexical_cast&) {
+      // Handle exception if needed
+      return 0;
+    }
+
+    if (num_a != num_b) {
+      return (num_a > num_b) ? 1 : -1;
+    }
+  }
+
+  if (split_a.size() != split_b.size()) {
+    return (split_a.size() > split_b.size()) ? 1 : -1;
+  }
+
+  return 0;
+}
+}  // namespace GpgFrontend
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