summaryrefslogtreecommitdiffstats
path: root/src/gui/embedded/qwscommand_qws.cpp
blob: 81741a5a998c3a14129b894d146f5ba5ed6f2f49 (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
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qwscommand_qws_p.h"
#include "qtransportauth_qws.h"
#include "qtransportauth_qws_p.h"

#include <unistd.h>

// #define QWSCOMMAND_DEBUG 1 // Uncomment to debug client/server communication

#ifdef QWSCOMMAND_DEBUG
# include <qdebug.h>
# include "qfile.h"
# include <ctype.h>
#endif

QT_BEGIN_NAMESPACE

#ifdef QWSCOMMAND_DEBUG
// QWSHexDump -[ start ]---------------------------------------------
# define QWSHEXDUMP_MAX 32
class QWSHexDump
{
public:

    QWSHexDump(const void *address, int len, int wrapAt = 16)
        : wrap(wrapAt), dataSize(len)
    {
        init();
        data = reinterpret_cast<const char*>(address);
        if (len < 0)
            dataSize = 0;
    }

    QWSHexDump(const char *str, int len = -1, int wrapAt = 16)
        : wrap(wrapAt), dataSize(len)
    {
        init();
        data = str;
        if (len == -1)
            dataSize = str ? strlen(str) : 0;
    }

    QWSHexDump(const QByteArray &array, int wrapAt = 16)
        : wrap(wrapAt)
    {
        init();
        data = array.data();
        dataSize = array.size();
    }

    // Sets a customized prefix for the hexdump
    void setPrefix(const char *str) { prefix = str; }

    // Sets number of bytes to cluster together
    void setClusterSize(uint num) { clustering = num; }

    // Output hexdump to a text stream
    void intoTextStream(QTextStream &strm) {
        outstrm = &strm;
        hexDump();
    }

    // Output hexdump to a QString
    QString toString();

protected:
    void init();
    void hexDump();
    void sideviewDump(int at);

private:
    uint wrap;
    uint clustering;
    uint dataSize;
    int dataWidth;
    const char *data;
    const char *prefix;
    bool dirty;

    char sideviewLayout[QWSHEXDUMP_MAX + 1];
    char sideview[15];

    QTextStream *outstrm;
};

void QWSHexDump::init()
{
    prefix = "> ";             // Standard line prefix
    clustering = 2;            // Word-size clustering by default
    if (wrap > QWSHEXDUMP_MAX) // No wider than QWSHexDump_MAX bytes
        wrap = QWSHEXDUMP_MAX;
}

void QWSHexDump::hexDump()
{
    *outstrm << '(' << dataSize << " bytes):\n" << prefix;
    sprintf(sideviewLayout, " [%%-%us]", wrap);
    dataWidth = (2 * wrap) + (wrap / clustering);

    dirty = false;
    uint wrapIndex = 0;
    for (uint i = 0; i < dataSize; i++) {
        uint c = static_cast<uchar>(data[i]);
        sideview[wrapIndex = i%wrap] = isprint(c) ? c : '.';

        if (wrapIndex && (wrapIndex % clustering == 0))
            *outstrm << ' ';

        outstrm->setFieldWidth(2);
        outstrm->setPadChar('0');
        outstrm->setNumberFlags( QTextStream::ShowBase );
        *outstrm << hex << c;
        dirty = true;

        if (wrapIndex == wrap-1) {
            sideviewDump(wrapIndex);
            wrapIndex = 0;
            if (i+1 < dataSize)
                *outstrm << endl << prefix;
        }

    }
    sideviewDump(wrapIndex);
}

void QWSHexDump::sideviewDump(int at)
{
    if (dirty) {
        dirty = false;
        ++at;
        sideview[at] = '\0';
        int currentWidth = (2 * at) + (at / clustering) - (at%clustering?0:1);
        int missing = qMax(dataWidth - currentWidth, 0);
        while (missing--)
            *outstrm << ' ';

        *outstrm << " [";
        outstrm->setPadChar(' ');
        outstrm->setFieldWidth(wrap);
        outstrm->setFieldAlignment( QTextStream::AlignLeft );
        *outstrm << sideview;
        *outstrm << ']';
    }
}

// Output hexdump to a QString
QString QWSHexDump::toString() {
    QString result;
    QTextStream strm(&result, QFile::WriteOnly);
    outstrm = &strm;
    hexDump();
    return result;
}

#ifndef QT_NO_DEBUG
QDebug &operator<<(QDebug &dbg, QWSHexDump *hd) {
    if (!hd)
        return dbg << "QWSHexDump(0x0)";
    QString result = hd->toString();
    dbg.nospace() << result;
    return dbg.space();
}

// GCC & Intel wont handle references here
QDebug operator<<(QDebug dbg, QWSHexDump hd) {
    return dbg << &hd;
}
#endif
// QWSHexDump -[ end ]-----------------------------------------------


QDebug &operator<<(QDebug &dbg, QWSCommand::Type tp)
{
    dbg << qws_getCommandTypeString( tp );
    return dbg;
}

#define N_EVENTS 19
const char * eventNames[N_EVENTS] =  {
        "NoEvent",
        "Connected",
        "Mouse", "Focus", "Key",
        "Region",
        "Creation",
        "PropertyNotify",
        "PropertyReply",
        "SelectionClear",
        "SelectionRequest",
        "SelectionNotify",
        "MaxWindowRect",
        "QCopMessage",
        "WindowOperation",
        "IMEvent",
        "IMQuery",
        "IMInit",
        "Font"
    };

class QWSServer;
extern QWSServer *qwsServer;
#endif

const char *qws_getCommandTypeString( QWSCommand::Type tp )
{
    const char *typeStr;
    switch(tp) {
        case QWSCommand::Create:
            typeStr = "Create";
            break;
        case QWSCommand::Shutdown:
            typeStr = "Shutdown";
            break;
        case QWSCommand::Region:
            typeStr = "Region";
            break;
        case QWSCommand::RegionMove:
            typeStr = "RegionMove";
            break;
        case QWSCommand::RegionDestroy:
            typeStr = "RegionDestroy";
            break;
        case QWSCommand::SetProperty:
            typeStr = "SetProperty";
            break;
        case QWSCommand::AddProperty:
            typeStr = "AddProperty";
            break;
        case QWSCommand::RemoveProperty:
            typeStr = "RemoveProperty";
            break;
        case QWSCommand::GetProperty:
            typeStr = "GetProperty";
            break;
        case QWSCommand::SetSelectionOwner:
            typeStr = "SetSelectionOwner";
            break;
        case QWSCommand::ConvertSelection:
            typeStr = "ConvertSelection";
            break;
        case QWSCommand::RequestFocus:
            typeStr = "RequestFocus";
            break;
        case QWSCommand::ChangeAltitude:
            typeStr = "ChangeAltitude";
            break;
        case QWSCommand::SetOpacity:
            typeStr = "SetOpacity";
            break;
        case QWSCommand::DefineCursor:
            typeStr = "DefineCursor";
            break;
        case QWSCommand::SelectCursor:
            typeStr = "SelectCursor";
            break;
        case QWSCommand::PositionCursor:
            typeStr = "PositionCursor";
            break;
        case QWSCommand::GrabMouse:
            typeStr = "GrabMouse";
            break;
        case QWSCommand::PlaySound:
            typeStr = "PlaySound";
            break;
        case QWSCommand::QCopRegisterChannel:
            typeStr = "QCopRegisterChannel";
            break;
        case QWSCommand::QCopSend:
            typeStr = "QCopSend";
            break;
        case QWSCommand::RegionName:
            typeStr = "RegionName";
            break;
        case QWSCommand::Identify:
            typeStr = "Identify";
            break;
        case QWSCommand::GrabKeyboard:
            typeStr = "GrabKeyboard";
            break;
        case QWSCommand::RepaintRegion:
            typeStr = "RepaintRegion";
            break;
        case QWSCommand::IMMouse:
            typeStr = "IMMouse";
            break;
        case QWSCommand::IMUpdate:
            typeStr = "IMUpdate";
            break;
        case QWSCommand::IMResponse:
            typeStr = "IMResponse";
            break;
        case QWSCommand::Font:
            typeStr = "Font";
            break;
        case QWSCommand::Unknown:
        default:
            typeStr = "Unknown";
            break;
    }
    return typeStr;
}


/*********************************************************************
 *
 * Functions to read/write commands on/from a socket
 *
 *********************************************************************/

#ifndef QT_NO_QWS_MULTIPROCESS
void qws_write_command(QIODevice *socket, int type, char *simpleData, int simpleLen,
                       char *rawData, int rawLen)
{
#ifdef QWSCOMMAND_DEBUG
    if (simpleLen) qDebug() << "WRITE simpleData " << QWSHexDump(simpleData, simpleLen);
    if (rawLen > 0) qDebug() << "WRITE rawData " << QWSHexDump(rawData, rawLen);
#endif

#ifndef QT_NO_SXE
    QTransportAuth *a = QTransportAuth::getInstance();
    // ###### as soon as public API can be modified get rid of horrible casts
    QIODevice *ad = a->passThroughByClient(reinterpret_cast<QWSClient*>(socket));
    if (ad)
        socket = ad;
#endif

    qws_write_uint(socket, type);

    if (rawLen > MAX_COMMAND_SIZE) {
        qWarning("qws_write_command: Message of size %d too big. "
                 "Truncated to %d", rawLen, MAX_COMMAND_SIZE);
        rawLen = MAX_COMMAND_SIZE;
    }

    qws_write_uint(socket, rawLen == -1 ? 0 : rawLen);

    if (simpleData && simpleLen)
        socket->write(simpleData, simpleLen);

    if (rawLen && rawData)
        socket->write(rawData, rawLen);
}

/*
  command format: [type][rawLen][simpleData][rawData]
  type is already read when entering this function
*/

bool qws_read_command(QIODevice *socket, char *&simpleData, int &simpleLen,
                      char *&rawData, int &rawLen, int &bytesRead)
{

    // read rawLen
    if (rawLen == -1) {
        rawLen = qws_read_uint(socket);
        if (rawLen == -1)
            return false;
    }

    // read simpleData, assumes socket is capable of buffering all the data
    if (simpleLen && !rawData) {
        if (socket->bytesAvailable() < uint(simpleLen))
            return false;
        int tmp = socket->read(simpleData, simpleLen);
        Q_ASSERT(tmp == simpleLen);
        Q_UNUSED(tmp);
    }

    if (rawLen > MAX_COMMAND_SIZE) {
        socket->close();
        qWarning("qws_read_command: Won't read command of length %d, "
                 "connection closed.", rawLen);
        return false;
    }

    // read rawData
    if (rawLen && !rawData) {
        rawData = new char[rawLen];
        bytesRead = 0;
    }
    if (bytesRead < rawLen && socket->bytesAvailable())
        bytesRead += socket->read(rawData + bytesRead, rawLen - bytesRead);

    return (bytesRead == rawLen);
}
#endif

/*********************************************************************
 *
 * QWSCommand base class - only use derived classes from that
 *
 *********************************************************************/
QWSProtocolItem::~QWSProtocolItem() {
    if (deleteRaw)
        delete []rawDataPtr;
}

#ifndef QT_NO_QWS_MULTIPROCESS
void QWSProtocolItem::write(QIODevice *s) {
#ifdef QWSCOMMAND_DEBUG
    if (!qwsServer)
        qDebug() << "QWSProtocolItem::write sending type " << static_cast<QWSCommand::Type>(type);
    else
        qDebug() << "QWSProtocolItem::write sending event " << (type < N_EVENTS ? eventNames[type] : "unknown");
#endif
    qws_write_command(s, type, simpleDataPtr, simpleLen, rawDataPtr, rawLen);
}

bool QWSProtocolItem::read(QIODevice *s) {
#ifdef QWSCOMMAND_DEBUG
    QLatin1String reread( (rawLen == -1) ? "" : "REREAD");
    if (qwsServer)
        qDebug() << "QWSProtocolItem::read reading type " << static_cast<QWSCommand::Type>(type) << reread;
    else
        qDebug() << "QWSProtocolItem::read reading event " << (type < N_EVENTS ? eventNames[type] : "unknown") << reread;
    //qDebug("QWSProtocolItem::read reading event %s", type < N_EVENTS ? eventNames[type] : "unknown");
#endif
    bool b = qws_read_command(s, simpleDataPtr, simpleLen, rawDataPtr, rawLen, bytesRead);
    if (b) {
        setData(rawDataPtr, rawLen, false);
        deleteRaw = true;
    }
#ifdef QWSCOMMAND_DEBUG
    else
    {
        qDebug() << "error in reading command " << static_cast<QWSCommand::Type>(type);
    }
#endif
    return b;
}
#endif // QT_NO_QWS_MULTIPROCESS

void QWSProtocolItem::copyFrom(const QWSProtocolItem *item) {
    if (this == item)
        return;
    simpleLen = item->simpleLen;
    memcpy(simpleDataPtr, item->simpleDataPtr, simpleLen);
    setData(item->rawDataPtr, item->rawLen);
}

void QWSProtocolItem::setData(const char *data, int len, bool allocateMem) {
    if (deleteRaw)
        delete [] rawDataPtr;
    if (!data || len <= 0) {
        rawDataPtr = 0;
        rawLen = 0;
        return;
    }
    if (allocateMem) {
        rawDataPtr = new char[len];
        memcpy(rawDataPtr, data, len);
        deleteRaw = true;
    } else {
        rawDataPtr = const_cast<char *>(data);
        deleteRaw = false;
    }
    rawLen = len;
}

QWSCommand *QWSCommand::factory(int type)
{
    QWSCommand *command = 0;
    switch (type) {
    case QWSCommand::Create:
        command = new QWSCreateCommand;
        break;
    case QWSCommand::Shutdown:
        command = new QWSCommand(type, 0, 0);
        break;
    case QWSCommand::Region:
        command = new QWSRegionCommand;
        break;
    case QWSCommand::RegionMove:
        command = new QWSRegionMoveCommand;
        break;
    case QWSCommand::RegionDestroy:
        command = new QWSRegionDestroyCommand;
        break;
    case QWSCommand::AddProperty:
        command = new QWSAddPropertyCommand;
        break;
    case QWSCommand::SetProperty:
        command = new QWSSetPropertyCommand;
        break;
    case QWSCommand::RemoveProperty:
        command = new QWSRemovePropertyCommand;
        break;
    case QWSCommand::GetProperty:
        command = new QWSGetPropertyCommand;
        break;
    case QWSCommand::SetSelectionOwner:
        command = new QWSSetSelectionOwnerCommand;
        break;
    case QWSCommand::RequestFocus:
        command = new QWSRequestFocusCommand;
        break;
    case QWSCommand::ChangeAltitude:
        command = new QWSChangeAltitudeCommand;
        break;
    case QWSCommand::SetOpacity:
        command = new QWSSetOpacityCommand;
        break;
    case QWSCommand::DefineCursor:
        command = new QWSDefineCursorCommand;
        break;
    case QWSCommand::SelectCursor:
        command = new QWSSelectCursorCommand;
        break;
    case QWSCommand::GrabMouse:
        command = new QWSGrabMouseCommand;
        break;
    case QWSCommand::GrabKeyboard:
        command = new QWSGrabKeyboardCommand;
        break;
#ifndef QT_NO_SOUND
    case QWSCommand::PlaySound:
        command = new QWSPlaySoundCommand;
        break;
#endif
#ifndef QT_NO_COP
    case QWSCommand::QCopRegisterChannel:
        command = new QWSQCopRegisterChannelCommand;
        break;
    case QWSCommand::QCopSend:
        command = new QWSQCopSendCommand;
        break;
#endif
    case QWSCommand::RegionName:
        command = new QWSRegionNameCommand;
        break;
    case QWSCommand::Identify:
        command = new QWSIdentifyCommand;
        break;
    case QWSCommand::RepaintRegion:
        command = new QWSRepaintRegionCommand;
        break;
#ifndef QT_NO_QWS_INPUTMETHODS
    case QWSCommand::IMUpdate:
        command = new QWSIMUpdateCommand;
        break;

    case QWSCommand::IMMouse:
        command = new QWSIMMouseCommand;
        break;

    case QWSCommand::IMResponse:
        command = new QWSIMResponseCommand;
        break;
#endif
    case QWSCommand::PositionCursor:
        command = new QWSPositionCursorCommand;
        break;
#ifndef QT_NO_QWSEMBEDWIDGET
    case QWSCommand::Embed:
        command = new QWSEmbedCommand;
        break;
#endif
    case QWSCommand::Font:
        command = new QWSFontCommand;
        break;
    case QWSCommand::ScreenTransform:
        command = new QWSScreenTransformCommand;
        break;
    default:
        qWarning("QWSCommand::factory : Type error - got %08x!", type);
    }
    return command;
}

QT_END_NAMESPACE