Add support for Intents for both single- and multi-process mode

This commit adds support for Intents, aka. a loosely coupled IPC between
arbitrary applications in the AM system.
(please read https://wiki.qt.io/QtAppMan-Intents for same background
information).

The core implementation on both server and client side in this patch is not
dependent on the AM itself (apart from the common-lib for convenience sake,
but this dependency could easily be removed). There are 2 interfaces
that are implemented in the manager-lib and launcher-lib that connect the
Intent core to the actual AM and AM's qml runtime launcher.

Missing features:
- updating the list of intents on app installation and removal
- support for background services in the AM itself
- support for "file-handles" in the request and reply part
- documentation
- an example that is better focused on intents themselves

Change-Id: Ia7cab2bb569fb2cdb8e5ab7e8167e477cff3068c
Reviewed-by: Dominik Holland <dominik.holland@pelagicore.com>

1 files changed, 133 insertions, 0 deletions

diff --git a/src/intent-server-lib/intent.cpp b/src/intent-server-lib/intent.cpp
new file mode 100644
index 00000000..fedb998e
--- /dev/null
+++ b/src/intent-server-lib/intent.cpp
@@ -0,0 +1,133 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 Pelagicore AG
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Pelagicore Application Manager.
+**
+** $QT_BEGIN_LICENSE:LGPL-QTAS$
+** Commercial License Usage
+** Licensees holding valid commercial Qt Automotive Suite 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.
+**
+** $QT_END_LICENSE$
+**
+** SPDX-License-Identifier: LGPL-3.0
+**
+****************************************************************************/
+
+#include "intent.h"
+
+#include <QRegularExpression>
+#include <QVariant>
+
+QT_BEGIN_NAMESPACE_AM
+
+QString Intent::id() const
+{
+    return m_id;
+}
+
+Intent::Visibility Intent::visibility() const
+{
+    return m_visibility;
+}
+
+QStringList Intent::requiredCapabilities() const
+{
+    return m_requiredCapabilities;
+}
+
+QVariantMap Intent::parameterMatch() const
+{
+    return m_parameterMatch;
+}
+
+QString Intent::applicationId() const
+{
+    return m_applicationId;
+}
+
+QString Intent::backgroundServiceId() const
+{
+    return m_backgroundServiceId;
+}
+
+bool Intent::checkParameterMatch(const QVariantMap &parameters) const
+{
+    QMapIterator<QString, QVariant> rit(m_parameterMatch);
+    while (rit.hasNext()) {
+        rit.next();
+        const QString &paramName = rit.key();
+        auto pit = parameters.find(paramName);
+        if (pit == parameters.cend())
+            return false;
+
+        const QVariant requiredValue = rit.value();
+        const QVariant actualValue = pit.value();
+
+        switch (requiredValue.type()) {
+        case QVariant::String: {
+            QRegularExpression regexp(requiredValue.toString());
+            auto match = regexp.match(actualValue.toString());
+            if (!match.hasMatch())
+                return false;
+            break;
+        }
+        case QVariant::List: {
+            bool foundMatch = false;
+            const QVariantList rvlist = requiredValue.toList();
+            for (const QVariant &rv2 : rvlist) {
+                if (actualValue.canConvert(rv2.type()) && actualValue == rv2) {
+                    foundMatch = true;
+                    break;
+                }
+            }
+            if (!foundMatch)
+                return false;
+            break;
+        }
+        default: {
+            if (requiredValue != actualValue)
+                return false;
+            break;
+        }
+        }
+    }
+    return true;
+}
+
+Intent::Intent(const QString &id, const QString &applicationId, const QString &backgroundHandlerId,
+               const QStringList &capabilities, Intent::Visibility visibility, const QVariantMap &parameterMatch)
+    : m_id(id)
+    , m_visibility(visibility)
+    , m_requiredCapabilities(capabilities)
+    , m_parameterMatch(parameterMatch)
+    , m_applicationId(applicationId)
+    , m_backgroundServiceId(backgroundHandlerId)
+{ }
+
+QT_END_NAMESPACE_AM