feat: add plasma-face-unlock

src/agent/daemonclient.cpp

@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "daemonclient.h"
+
+#include "buildconfig.h"
+
+#include <QJsonDocument>
+
+DaemonRequest::DaemonRequest(const QJsonObject &request, QObject *parent)
+    : QObject(parent)
+    , m_request(request)
+{
+    connect(&m_socket, &QLocalSocket::connected, this, [this] {
+        m_socket.write(QJsonDocument(m_request).toJson(QJsonDocument::Compact) + '\n');
+    });
+    connect(&m_socket, &QLocalSocket::readyRead, this, &DaemonRequest::readLines);
+    connect(&m_socket, &QLocalSocket::errorOccurred, this, [this](QLocalSocket::LocalSocketError error) {
+        if (error == QLocalSocket::PeerClosedError) {
+            return;
+        }
+        end({{QStringLiteral("event"), QStringLiteral("result")},
+             {QStringLiteral("ok"), false},
+             {QStringLiteral("reason"), QStringLiteral("unreachable")},
+             {QStringLiteral("message"), m_socket.errorString()}});
+    });
+    connect(&m_socket, &QLocalSocket::disconnected, this, [this] {
+        readLines();
+        end({{QStringLiteral("event"), QStringLiteral("result")}, {QStringLiteral("ok"), false}, {QStringLiteral("reason"), QStringLiteral("disconnected")}});
+    });
+    m_socket.connectToServer(socketPath());
+}
+
+DaemonRequest::~DaemonRequest()
+{
+    m_done = true;
+    m_socket.abort();
+}
+
+QString DaemonRequest::socketPath()
+{
+    const QByteArray env = qgetenv("PFU_SOCKET");
+    return env.isEmpty() ? QStringLiteral(PFU_SOCKET) : QString::fromLocal8Bit(env);
+}
+
+void DaemonRequest::send(const QJsonObject &message)
+{
+    if (m_socket.state() == QLocalSocket::ConnectedState) {
+        m_socket.write(QJsonDocument(message).toJson(QJsonDocument::Compact) + '\n');
+        m_socket.flush();
+    }
+}
+
+void DaemonRequest::abort()
+{
+    m_done = true;
+    m_socket.abort();
+}
+
+void DaemonRequest::readLines()
+{
+    if (m_socket.isOpen() && m_socket.bytesAvailable() > 0) {
+        m_buffer += m_socket.readAll();
+    }
+    qsizetype nl;
+    while (!m_done && (nl = m_buffer.indexOf('\n')) >= 0) {
+        const QJsonObject o = QJsonDocument::fromJson(m_buffer.left(nl)).object();
+        m_buffer.remove(0, nl + 1);
+        if (o.value(u"event").toString() == u"result") {
+            end(o);
+            return;
+        }
+        Q_EMIT event(o);
+    }
+}
+
+void DaemonRequest::end(const QJsonObject &result)
+{
+    if (m_done) {
+        return;
+    }
+    m_done = true;
+    Q_EMIT finished(result);
+}