WireGuard for MacOS (#248)

* WireGuard for MacOS
* Fix openvpn block-outside-dns

client/daemon/daemonlocalserver.cpp

@@ -0,0 +1,98 @@
+/* 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 "daemonlocalserver.h"
+
+#include <QDir>
+#include <QFileInfo>
+#include <QLocalSocket>
+
+#include "daemonlocalserverconnection.h"
+#include "leakdetector.h"
+#include "logger.h"
+
+#ifdef MZ_MACOS
+#  include <sys/stat.h>
+#  include <sys/types.h>
+#  include <unistd.h>
+
+constexpr const char* TMP_PATH = "/tmp/amneziavpn.socket";
+constexpr const char* VAR_PATH = "/var/run/amneziavpn/daemon.socket";
+#endif
+
+namespace {
+Logger logger("DaemonLocalServer");
+}  // namespace
+
+DaemonLocalServer::DaemonLocalServer(QObject* parent) : QObject(parent) {
+  MZ_COUNT_CTOR(DaemonLocalServer);
+}
+
+DaemonLocalServer::~DaemonLocalServer() { MZ_COUNT_DTOR(DaemonLocalServer); }
+
+bool DaemonLocalServer::initialize() {
+  m_server.setSocketOptions(QLocalServer::WorldAccessOption);
+
+  QString path = daemonPath();
+  logger.debug() << "Server path:" << path;
+
+  if (QFileInfo::exists(path)) {
+    QFile::remove(path);
+  }
+
+  if (!m_server.listen(path)) {
+    logger.error() << "Failed to listen the daemon path";
+    return false;
+  }
+
+  connect(&m_server, &QLocalServer::newConnection, [&] {
+    logger.debug() << "New connection received";
+
+    if (!m_server.hasPendingConnections()) {
+      return;
+    }
+
+    QLocalSocket* socket = m_server.nextPendingConnection();
+    Q_ASSERT(socket);
+
+    DaemonLocalServerConnection* connection =
+        new DaemonLocalServerConnection(&m_server, socket);
+    connect(socket, &QLocalSocket::disconnected, connection,
+            &DaemonLocalServerConnection::deleteLater);
+  });
+
+  return true;
+}
+
+QString DaemonLocalServer::daemonPath() const {
+#if defined(MZ_WINDOWS)
+  return "\\\\.\\pipe\\amneziavpn";
+#elif defined(MZ_MACOS)
+  QDir dir("/var/run");
+  if (!dir.exists()) {
+    logger.warning() << "/var/run doesn't exist. Fallback /tmp.";
+    return TMP_PATH;
+  }
+
+  if (dir.exists("amneziavpn")) {
+    logger.debug() << "/var/run/amneziavpn seems to be usable";
+    return VAR_PATH;
+  }
+
+  if (!dir.mkdir("amneziavpn")) {
+    logger.warning() << "Failed to create /var/run/amneziavpn";
+    return TMP_PATH;
+  }
+
+  if (chmod("/var/run/amneziavpn", S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
+    logger.warning()
+        << "Failed to set the right permissions to /var/run/amneziavpn";
+    return TMP_PATH;
+  }
+
+  return VAR_PATH;
+#else
+#  error Unsupported platform
+#endif
+}