1 files changed, 113 insertions, 0 deletions
diff --git a/src/app/qbs/sessionpacket.cpp b/src/app/qbs/sessionpacket.cpp
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+++ b/src/app/qbs/sessionpacket.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qbs.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "sessionpacket.h"
+
+#include <tools/qbsassert.h>
+#include <tools/stringconstants.h>
+#include <tools/version.h>
+
+#include <QtCore/qdebug.h>
+#include <QtCore/qjsondocument.h>
+#include <QtCore/qjsonvalue.h>
+#include <QtCore/qstring.h>
+
+namespace qbs {
+namespace Internal {
+
+const QByteArray packetStart = "qbsmsg:";
+
+SessionPacket::Status SessionPacket::parseInput(QByteArray &input)
+{
+    //qDebug() << m_expectedPayloadLength << m_payload << input;
+    if (m_expectedPayloadLength == -1) {
+        const int packetStartOffset = input.indexOf(packetStart);
+        if (packetStartOffset == -1)
+            return Status::Incomplete;
+        const int numberOffset = packetStartOffset + packetStart.length();
+        const int newLineOffset = input.indexOf('\n', numberOffset);
+        if (newLineOffset == -1)
+            return Status::Incomplete;
+        const QByteArray sizeString = input.mid(numberOffset, newLineOffset - numberOffset);
+        bool isNumber;
+        const int payloadLen = sizeString.toInt(&isNumber);
+        if (!isNumber || payloadLen < 0)
+            return Status::Invalid;
+        m_expectedPayloadLength = payloadLen;
+        input.remove(0, newLineOffset + 1);
+    }
+    const int bytesToAdd = m_expectedPayloadLength - m_payload.length();
+    QBS_ASSERT(bytesToAdd >= 0, return Status::Invalid);
+    m_payload += input.left(bytesToAdd);
+    input.remove(0, bytesToAdd);
+    return isComplete() ? Status::Complete : Status::Incomplete;
+}
+
+QJsonObject SessionPacket::retrievePacket()
+{
+    QBS_ASSERT(isComplete(), return QJsonObject());
+    const auto packet = QJsonDocument::fromJson(QByteArray::fromBase64(m_payload)).object();
+    m_payload.clear();
+    m_expectedPayloadLength = -1;
+    return packet;
+}
+
+QByteArray SessionPacket::createPacket(const QJsonObject &packet)
+{
+    const QByteArray jsonData = QJsonDocument(packet).toJson(QJsonDocument::Compact).toBase64();
+    return QByteArray(packetStart).append(QByteArray::number(jsonData.length())).append('\n')
+            .append(jsonData);
+}
+
+QJsonObject SessionPacket::helloMessage()
+{
+    return QJsonObject{
+        {StringConstants::type(), QLatin1String("hello")},
+        {QLatin1String("api-level"), 1},
+        {QLatin1String("api-compat-level"), 1}
+    };
+}
+
+bool SessionPacket::isComplete() const
+{
+    return m_payload.length() == m_expectedPayloadLength;
+}
+
+} // namespace Internal
+} // namespace qbs