1 files changed, 76 insertions, 0 deletions
diff --git a/src/core/model/GpgData.cpp b/src/core/model/GpgData.cpp
new file mode 100644
index 00000000..7fda4416
--- /dev/null
+++ b/src/core/model/GpgData.cpp
@@ -0,0 +1,76 @@
+/**
+ * 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
+ *
+ */
+
+#include "core/model/GpgData.h"
+
+GpgFrontend::GpgData::GpgData() {
+  gpgme_data_t data;
+
+  auto err = gpgme_data_new(&data);
+  assert(gpgme_err_code(err) == GPG_ERR_NO_ERROR);
+
+  data_ref_ = std::unique_ptr<struct gpgme_data, _data_ref_deleter>(data);
+}
+
+GpgFrontend::GpgData::GpgData(void* buffer, size_t size, bool copy) {
+  gpgme_data_t data;
+
+  auto err = gpgme_data_new_from_mem(&data, (const char*)buffer, size, copy);
+  assert(gpgme_err_code(err) == GPG_ERR_NO_ERROR);
+
+  data_ref_ = std::unique_ptr<struct gpgme_data, _data_ref_deleter>(data);
+}
+
+/**
+ * Read gpgme-Data to QByteArray
+ *   mainly from http://basket.kde.org/ (kgpgme.cpp)
+ */
+#define BUF_SIZE (32 * 1024)
+
+GpgFrontend::ByteArrayPtr GpgFrontend::GpgData::Read2Buffer() {
+  gpgme_off_t ret = gpgme_data_seek(*this, 0, SEEK_SET);
+  ByteArrayPtr out_buffer = std::make_unique<std::string>();
+
+  if (ret) {
+    gpgme_error_t err = gpgme_err_code_from_errno(errno);
+    assert(gpgme_err_code(err) == GPG_ERR_NO_ERROR);
+  } else {
+    char buf[BUF_SIZE + 2];
+
+    while ((ret = gpgme_data_read(*this, buf, BUF_SIZE)) > 0) {
+      const size_t size = out_buffer->size();
+      out_buffer->resize(static_cast<int>(size + ret));
+      memcpy(out_buffer->data() + size, buf, ret);
+    }
+    if (ret < 0) {
+      gpgme_error_t err = gpgme_err_code_from_errno(errno);
+      assert(gpgme_err_code(err) == GPG_ERR_NO_ERROR);
+    }
+  }
+  return out_buffer;
+}
+\ No newline at end of file