summaryrefslogtreecommitdiff
path: root/src/bluetooth/qbluetoothserver_android.cpp
blob: df26daedaa0cd671670383ba54ce7140cc4d1c18 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#include "android/serveracceptancethread_p.h"
#include "android/androidutils_p.h"
#include "android/jni_android_p.h"
#include "qbluetoothserver.h"
#include "qbluetoothserver_p.h"
#include "qbluetoothsocket.h"
#include "qbluetoothsocket_android_p.h"
#include "qbluetoothlocaldevice.h"

#include <QCoreApplication>
#include <QtCore/QLoggingCategory>

QT_BEGIN_NAMESPACE

Q_DECLARE_LOGGING_CATEGORY(QT_BT_ANDROID)

QHash<QBluetoothServerPrivate*, int> __fakeServerPorts;

QBluetoothServerPrivate::QBluetoothServerPrivate(QBluetoothServiceInfo::Protocol sType,
                                                 QBluetoothServer *parent)
    : serverType(sType), q_ptr(parent)
{
    thread = new ServerAcceptanceThread();
    thread->setMaxPendingConnections(maxPendingConnections);
}

QBluetoothServerPrivate::~QBluetoothServerPrivate()
{
    Q_Q(QBluetoothServer);
    if (isListening())
        q->close();

    __fakeServerPorts.remove(this);

    thread->deleteLater();
    thread = nullptr;
}

bool QBluetoothServerPrivate::initiateActiveListening(
        const QBluetoothUuid& uuid, const QString &serviceName)
{
    qCDebug(QT_BT_ANDROID) << "Initiate active listening" << uuid.toString() << serviceName;

    if (uuid.isNull() || serviceName.isEmpty())
        return false;

    //no change of SP profile details -> do nothing
    if (uuid == m_uuid && serviceName == m_serviceName && thread->isRunning())
        return true;

    m_uuid = uuid;
    m_serviceName = serviceName;
    thread->setServiceDetails(m_uuid, m_serviceName, securityFlags);

    thread->run();
    if (!thread->isRunning())
        return false;

    return true;
}

bool QBluetoothServerPrivate::deactivateActiveListening()
{
    if (isListening()) {
        //suppress last error signal due to intended closure
        thread->disconnect();
        thread->stop();
    }
    return true;
}

bool QBluetoothServerPrivate::isListening() const
{
    return __fakeServerPorts.contains(const_cast<QBluetoothServerPrivate *>(this));
}

void QBluetoothServer::close()
{
    Q_D(QBluetoothServer);

    __fakeServerPorts.remove(d);
    if (d->thread->isRunning()) {
        //suppress last error signal due to intended closure
        d->thread->disconnect();
        d->thread->stop();
    }
}

bool QBluetoothServer::listen(const QBluetoothAddress &localAdapter, quint16 port)
{
    Q_D(QBluetoothServer);
    if (serverType() != QBluetoothServiceInfo::RfcommProtocol) {
        d->m_lastError = UnsupportedProtocolError;
        emit errorOccurred(d->m_lastError);
        return false;
    }

    if (!ensureAndroidPermission(QBluetoothPermission::Access)) {
        qCWarning(QT_BT_ANDROID) << "Bluetooth server listen() failed due to missing permissions";
        d->m_lastError = QBluetoothServer::MissingPermissionsError;
        emit errorOccurred(d->m_lastError);
        return false;
    }

    const QList<QBluetoothHostInfo> localDevices = QBluetoothLocalDevice::allDevices();
    if (localDevices.isEmpty()) {
        qCWarning(QT_BT_ANDROID) << "Device does not support Bluetooth";
        d->m_lastError = QBluetoothServer::UnknownError;
        emit errorOccurred(d->m_lastError);
        return false; //no Bluetooth device
    }

    if (!localAdapter.isNull()) {
        bool found = false;
        for (const QBluetoothHostInfo &hostInfo : localDevices) {
            if (hostInfo.address() == localAdapter) {
                found = true;
                break;
            }
        }

        if (!found) {
            qCWarning(QT_BT_ANDROID) << localAdapter.toString() << "is not a valid local Bt adapter";
            return false;
        }
    }

    if (d->isListening())
        return false;

    //check Bluetooth is available and online
    QJniObject btAdapter = getDefaultBluetoothAdapter();

    if (!btAdapter.isValid()) {
        qCWarning(QT_BT_ANDROID) << "Device does not support Bluetooth";
        d->m_lastError = QBluetoothServer::UnknownError;
        emit errorOccurred(d->m_lastError);
        return false;
    }

    const int state = btAdapter.callMethod<jint>("getState");
    if (state != 12 ) { //BluetoothAdapter.STATE_ON
        d->m_lastError = QBluetoothServer::PoweredOffError;
        emit errorOccurred(d->m_lastError);
        qCWarning(QT_BT_ANDROID) << "Bluetooth device is powered off";
        return false;
    }

    //We can not register an actual Rfcomm port, because the platform does not allow it
    //but we need a way to associate a server with a service
    if (port == 0) { //Try to assign a non taken port id
        for (int i=1; ; i++){
            if (__fakeServerPorts.key(i) == 0) {
                port = i;
                break;
            }
        }
    }

    if (__fakeServerPorts.key(port) == 0) {
        __fakeServerPorts[d] = port;

        qCDebug(QT_BT_ANDROID) << "Port" << port << "registered";
    } else {
        qCWarning(QT_BT_ANDROID) << "server with port" << port << "already registered or port invalid";
        d->m_lastError = ServiceAlreadyRegisteredError;
        emit errorOccurred(d->m_lastError);
        return false;
    }

    connect(d->thread, SIGNAL(newConnection()),
            this, SIGNAL(newConnection()));
    connect(d->thread, SIGNAL(errorOccurred(QBluetoothServer::Error)), this,
            SIGNAL(errorOccurred(QBluetoothServer::Error)), Qt::QueuedConnection);

    return true;
}

void QBluetoothServer::setMaxPendingConnections(int numConnections)
{
    Q_D(QBluetoothServer);
    d->maxPendingConnections = numConnections;
    d->thread->setMaxPendingConnections(numConnections);
}

QBluetoothAddress QBluetoothServer::serverAddress() const
{
    //Android only supports one local adapter
    QList<QBluetoothHostInfo> hosts = QBluetoothLocalDevice::allDevices();
    Q_ASSERT(hosts.size() <= 1);

    if (hosts.isEmpty())
        return QBluetoothAddress();
    else
        return hosts.at(0).address();
}

quint16 QBluetoothServer::serverPort() const
{
    //We return the fake port
    Q_D(const QBluetoothServer);
    return __fakeServerPorts.value((QBluetoothServerPrivate*)d, 0);
}

bool QBluetoothServer::hasPendingConnections() const
{
    Q_D(const QBluetoothServer);

    return d->thread->hasPendingConnections();
}

QBluetoothSocket *QBluetoothServer::nextPendingConnection()
{
    Q_D(const QBluetoothServer);

    QJniObject socket = d->thread->nextPendingConnection();
    if (!socket.isValid())
        return 0;


    QBluetoothSocket *newSocket = new QBluetoothSocket();
    bool success = newSocket->d_ptr->setSocketDescriptor(socket, d->serverType);
    if (!success) {
        delete newSocket;
        newSocket = nullptr;
    }

    return newSocket;
}

void QBluetoothServer::setSecurityFlags(QBluetooth::SecurityFlags security)
{
    Q_D(QBluetoothServer);
    d->securityFlags = security;
}

QBluetooth::SecurityFlags QBluetoothServer::securityFlags() const
{
    Q_D(const QBluetoothServer);
    return d->securityFlags;
}

QT_END_NAMESPACE