prepared to build

client/platforms/linux/daemon/polkithelper.cpp

@@ -0,0 +1,66 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "polkithelper.h"
+
+#include <QDebug>
+
+// No extra QT includes after this line!
+#undef Q_SIGNALS
+#include "polkit/polkit.h"
+
+class Helper final {
+ public:
+  Helper() = default;
+  ~Helper() {
+    if (m_error) {
+      g_error_free(m_error);
+    }
+
+    if (m_subject) {
+      g_object_unref(m_subject);
+    }
+
+    if (m_result) {
+      g_object_unref(m_result);
+    }
+  }
+
+ public:
+  GError* m_error = nullptr;
+  PolkitSubject* m_subject = nullptr;
+  PolkitAuthorizationResult* m_result = nullptr;
+};
+
+// static
+PolkitHelper* PolkitHelper::instance() {
+  static PolkitHelper s_instance;
+  return &s_instance;
+}
+
+bool PolkitHelper::checkAuthorization(const QString& actionId) {
+  qDebug() << "Check Authorization for" << actionId;
+
+  Helper h;
+
+  PolkitAuthority* authority = polkit_authority_get_sync(NULL, &h.m_error);
+  if (h.m_error) {
+    qDebug() << "Fail to generate a polkit authority object:"
+             << h.m_error->message;
+    return false;
+  }
+
+  h.m_subject = polkit_unix_process_new_for_owner(getpid(), 0, -1);
+
+  h.m_result = polkit_authority_check_authorization_sync(
+      authority, h.m_subject, actionId.toLatin1().data(), nullptr,
+      POLKIT_CHECK_AUTHORIZATION_FLAGS_ALLOW_USER_INTERACTION, nullptr,
+      &h.m_error);
+  if (h.m_error) {
+    qDebug() << "Authorization sync failed:" << h.m_error->message;
+    return false;
+  }
+
+  return polkit_authorization_result_get_is_authorized(h.m_result);
+}