QByteArray QIODeviceProto::peek(qint64 maxSize)
{
QIODevice *item = qscriptvalue_cast<QIODevice*>(thisObject());
if (item)
return item->peek(maxSize);
return QByteArray();
}
qint64 QIODeviceProto::peek(char *data, qint64 maxSize)
{
QIODevice *item = qscriptvalue_cast<QIODevice*>(thisObject());
if (item)
return item->peek(data, maxSize);
return 0;
}
/** Check if a full message is available in the buffer
*
* @param ioDevice
*
* @return
*
* History:
* - 2010/08/03: STEELJ - Initial Version.
*/
bool CAdChannel::fullMessageAvailable(QIODevice& ioDevice) const
{
if (ioDevice.bytesAvailable() < 4)
return false;
QByteArray startData = ioDevice.peek(4);
if (startData.size() < 4)
return false;
QDataStream stream(startData);
quint16 messageId, messageSize;
stream >> messageId;
stream >> messageSize;
return(m_socket->bytesAvailable() >= (messageSize + 8));
}
/**
* @exception notEnoughDataException
*/
MessageHeader MessageHeader::readHeader(QIODevice& device, bool skipReadData)
{
if (device.bytesAvailable() < HEADER_SIZE)
throw notEnoughDataException();
char data[HEADER_SIZE];
if (skipReadData)
device.read(data, HEADER_SIZE);
else
device.peek(data, HEADER_SIZE);
return MessageHeader::readHeader(data);
}
//--------------------------------------------------------------------
void tst_QIODevice::peek()
{
QBuffer buffer;
QFile::remove("peektestfile");
QFile file("peektestfile");
for (int i = 0; i < 2; ++i) {
QIODevice *device = i ? (QIODevice *)&file : (QIODevice *)&buffer;
device->open(QBuffer::ReadWrite);
device->write("ZXCV");
device->seek(0);
QCOMPARE(device->peek(4), QByteArray("ZXCV"));
QCOMPARE(device->pos(), qint64(0));
device->write("ABCDE");
device->seek(3);
QCOMPARE(device->peek(1), QByteArray("D"));
QCOMPARE(device->peek(5), QByteArray("DE"));
device->seek(0);
QCOMPARE(device->read(4), QByteArray("ABCD"));
QCOMPARE(device->pos(), qint64(4));
device->seek(0);
device->write("ZXCV");
device->seek(0);
char buf[5];
buf[4] = 0;
device->peek(buf, 4);
QCOMPARE(static_cast<const char *>(buf), "ZXCV");
QCOMPARE(device->pos(), qint64(0));
device->read(buf, 4);
QCOMPARE(static_cast<const char *>(buf), "ZXCV");
QCOMPARE(device->pos(), qint64(4));
}
QFile::remove("peektestfile");
}
void tst_QIODevice::peekAndRead()
{
QByteArray originalData;
for (int i=0; i<1000; i++)
originalData += "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
QBuffer buffer;
QFile::remove("peektestfile");
QFile file("peektestfile");
for (int i = 0; i < 2; ++i) {
QByteArray readData;
QIODevice *device = i ? (QIODevice *)&file : (QIODevice *)&buffer;
device->open(QBuffer::ReadWrite);
device->write(originalData);
device->seek(0);
while (!device->atEnd()) {
char peekIn[26];
device->peek(peekIn, 26);
readData += device->read(26);
}
QCOMPARE(readData, originalData);
}
QFile::remove("peektestfile");
}
//--------------------------------------------------------------------
void tst_QIODevice::unget()
{
#if defined(Q_OS_WINCE) && defined(WINCE_EMULATOR_TEST)
QSKIP("Networking tests in a WinCE emulator are unstable", SkipAll);
#endif
QBuffer buffer;
buffer.open(QBuffer::ReadWrite);
buffer.write("ZXCV");
buffer.seek(0);
QCOMPARE(buffer.read(4), QByteArray("ZXCV"));
QCOMPARE(buffer.pos(), qint64(4));
buffer.ungetChar('a');
buffer.ungetChar('b');
buffer.ungetChar('c');
buffer.ungetChar('d');
QCOMPARE(buffer.pos(), qint64(0));
char buf[6];
QCOMPARE(buffer.readLine(buf, 5), qint64(4));
QCOMPARE(buffer.pos(), qint64(4));
QCOMPARE(static_cast<const char*>(buf), "dcba");
buffer.ungetChar('a');
buffer.ungetChar('b');
buffer.ungetChar('c');
buffer.ungetChar('d');
QCOMPARE(buffer.pos(), qint64(0));
for (int i = 0; i < 5; ++i) {
buf[0] = '@';
buf[1] = '@';
QTest::ignoreMessage(QtWarningMsg,
"QIODevice::readLine: Called with maxSize < 2");
QCOMPARE(buffer.readLine(buf, 1), qint64(-1));
QCOMPARE(buffer.readLine(buf, 2), qint64(i < 4 ? 1 : -1));
switch (i) {
case 0:
QCOMPARE(buf[0], 'd');
break;
case 1:
QCOMPARE(buf[0], 'c');
break;
case 2:
QCOMPARE(buf[0], 'b');
break;
case 3:
QCOMPARE(buf[0], 'a');
break;
case 4:
QCOMPARE(buf[0], '\0');
break;
}
QCOMPARE(buf[1], i < 4 ? '\0' : '@');
}
buffer.ungetChar('\n');
QCOMPARE(buffer.readLine(), QByteArray("\n"));
buffer.seek(1);
buffer.readLine(buf, 3);
QCOMPARE(static_cast<const char*>(buf), "XC");
buffer.seek(4);
buffer.ungetChar('Q');
QCOMPARE(buffer.readLine(buf, 3), qint64(1));
for (int i = 0; i < 2; ++i) {
QTcpSocket socket;
QIODevice *dev;
QByteArray result;
const char *lineResult;
if (i == 0) {
dev = &buffer;
result = QByteArray("ZXCV");
lineResult = "ZXCV";
} else {
socket.connectToHost(QtNetworkSettings::serverName(), 80);
socket.write("GET / HTTP/1.0\r\n\r\n");
QVERIFY(socket.waitForReadyRead());
dev = &socket;
result = QByteArray("HTTP");
lineResult = "Date";
}
char ch, ch2;
dev->seek(0);
dev->getChar(&ch);
dev->ungetChar(ch);
QCOMPARE(dev->peek(4), result);
dev->getChar(&ch);
dev->getChar(&ch2);
dev->ungetChar(ch2);
dev->ungetChar(ch);
QCOMPARE(dev->read(1), result.left(1));
QCOMPARE(dev->read(3), result.right(3));
if (i == 0)
dev->seek(0);
else
dev->readLine();
dev->getChar(&ch);
dev->ungetChar(ch);
dev->readLine(buf, 5);
QCOMPARE(static_cast<const char*>(buf), lineResult);
if (i == 1)
socket.close();
}
}
int TAbstractWebSocket::parse(QByteArray &recvData)
{
tSystemDebug("parse enter data len:%d sid:%d", recvData.length(), socketId());
if (websocketFrames().isEmpty()) {
websocketFrames().append(TWebSocketFrame());
} else {
const TWebSocketFrame &f = websocketFrames().last();
if (f.state() == TWebSocketFrame::Completed) {
websocketFrames().append(TWebSocketFrame());
}
}
TWebSocketFrame *pfrm = &websocketFrames().last();
quint8 b;
quint16 w;
quint32 n;
quint64 d;
QDataStream ds(recvData);
ds.setByteOrder(QDataStream::BigEndian);
QIODevice *dev = ds.device();
QByteArray hdr;
while (!ds.atEnd()) {
switch (pfrm->state()) {
case TWebSocketFrame::Empty: {
hdr = dev->peek(14);
QDataStream dshdr(hdr);
dshdr.setByteOrder(QDataStream::BigEndian);
QIODevice *devhdr = dshdr.device();
if (Q_UNLIKELY(devhdr->bytesAvailable() < 2)) {
goto parse_end;
}
dshdr >> b;
pfrm->setFirstByte(b);
dshdr >> b;
bool maskFlag = b & 0x80;
quint8 len = b & 0x7f;
// payload length
switch (len) {
case 126:
if (Q_UNLIKELY(devhdr->bytesAvailable() < (int)sizeof(w))) {
goto parse_end;
}
dshdr >> w;
if (Q_UNLIKELY(w < 126)) {
tSystemError("WebSocket protocol error [%s:%d]", __FILE__, __LINE__);
return -1;
}
pfrm->setPayloadLength( w );
break;
case 127:
if (Q_UNLIKELY(devhdr->bytesAvailable() < (int)sizeof(d))) {
goto parse_end;
}
dshdr >> d;
if (Q_UNLIKELY(d <= 0xFFFF)) {
tSystemError("WebSocket protocol error [%s:%d]", __FILE__, __LINE__);
return -1;
}
pfrm->setPayloadLength( d );
break;
default:
pfrm->setPayloadLength( len );
break;
}
// Mask key
if (maskFlag) {
if (Q_UNLIKELY(devhdr->bytesAvailable() < (int)sizeof(n))) {
goto parse_end;
}
dshdr >> n;
pfrm->setMaskKey( n );
}
if (pfrm->payloadLength() == 0) {
pfrm->setState(TWebSocketFrame::Completed);
} else {
pfrm->setState(TWebSocketFrame::HeaderParsed);
if (pfrm->payloadLength() >= 2 * 1024 * 1024 * 1024ULL) {
tSystemError("Too big frame [%s:%d]", __FILE__, __LINE__);
pfrm->clear();
} else {
pfrm->payload().reserve(pfrm->payloadLength());
}
}
tSystemDebug("WebSocket parse header pos: %lld", devhdr->pos());
tSystemDebug("WebSocket payload length:%lld", pfrm->payloadLength());
int hdrlen = hdr.length() - devhdr->bytesAvailable();
ds.skipRawData(hdrlen); // Forwards the pos
break; }
case TWebSocketFrame::HeaderParsed: // fall through
case TWebSocketFrame::MoreData: {
tSystemDebug("WebSocket reading payload: available length:%lld", dev->bytesAvailable());
tSystemDebug("WebSocket parsing length to read:%llu current buf len:%d", pfrm->payloadLength(), pfrm->payload().size());
quint64 size = qMin((pfrm->payloadLength() - pfrm->payload().size()), (quint64)dev->bytesAvailable());
if (Q_UNLIKELY(size == 0)) {
Q_ASSERT(0);
break;
}
char *p = pfrm->payload().data() + pfrm->payload().size();
size = ds.readRawData(p, size);
if (pfrm->maskKey()) {
// Unmask
const quint8 mask[4] = { quint8((pfrm->maskKey() & 0xFF000000) >> 24),
quint8((pfrm->maskKey() & 0x00FF0000) >> 16),
quint8((pfrm->maskKey() & 0x0000FF00) >> 8),
quint8((pfrm->maskKey() & 0x000000FF)) };
int i = pfrm->payload().size();
const char *end = p + size;
while (p < end) {
*p++ ^= mask[i++ % 4];
}
}
pfrm->payload().resize( pfrm->payload().size() + size );
tSystemDebug("WebSocket payload curent buf len: %d", pfrm->payload().length());
if ((quint64)pfrm->payload().size() == pfrm->payloadLength()) {
pfrm->setState(TWebSocketFrame::Completed);
tSystemDebug("Parse Completed payload len: %d", pfrm->payload().size());
} else {
pfrm->setState(TWebSocketFrame::MoreData);
tSystemDebug("Parse MoreData payload len: %d", pfrm->payload().size());
}
break; }
case TWebSocketFrame::Completed: // fall through
default:
Q_ASSERT(0);
break;
}
if (pfrm->state() == TWebSocketFrame::Completed) {
if (Q_UNLIKELY(!pfrm->validate())) {
pfrm->clear();
continue;
}
// Fragmented message validation
if (pfrm->opCode() == TWebSocketFrame::Continuation) {
if (websocketFrames().count() >= 2) {
const TWebSocketFrame &before = websocketFrames()[websocketFrames().count() - 2];
if (before.isFinalFrame() || before.isControlFrame()) {
pfrm->clear();
tSystemWarn("Invalid continuation frame detected [%s:%d]", __FILE__, __LINE__);
continue;
}
}
}
// In case of control frame, moves forward after previous control frames
if (pfrm->isControlFrame()) {
if (websocketFrames().count() >= 2) {
TWebSocketFrame frm = websocketFrames().takeLast();
QMutableListIterator<TWebSocketFrame> it(websocketFrames());
while (it.hasNext()) {
TWebSocketFrame &f = it.next();
if (!f.isControlFrame()) {
break;
}
}
it.insert(frm);
}
}
if (!ds.atEnd()) {
// Prepare next frame
websocketFrames().append(TWebSocketFrame());
pfrm = &websocketFrames().last();
} else {
break;
}
}
}
parse_end:
int parsedlen = recvData.size() - dev->bytesAvailable();
recvData.remove(0, parsedlen);
return parsedlen;
}
/**
* Verifies contents of specified archive against test fileset
* @param archive archive
*/
static void testFileData(KArchive *archive)
{
const KArchiveDirectory *dir = archive->directory();
const KArchiveFile *f = dir->file(QStringLiteral("z/test3"));
QByteArray arr(f->data());
QCOMPARE(arr.size(), 13);
QCOMPARE(arr, QByteArray("Noch so einer"));
// Now test using createDevice()
QIODevice *dev = f->createDevice();
QByteArray contents = dev->readAll();
QCOMPARE(contents, arr);
delete dev;
dev = f->createDevice();
contents = dev->read(5); // test reading in two chunks
QCOMPARE(contents.size(), 5);
contents += dev->read(50);
QCOMPARE(contents.size(), 13);
QCOMPARE(QString::fromLatin1(contents.constData()), QString::fromLatin1(arr.constData()));
delete dev;
// test read/seek/peek work fine
f = dir->file(QStringLiteral("test1"));
dev = f->createDevice();
contents = dev->peek(4);
QCOMPARE(contents, QByteArray("Hall"));
contents = dev->peek(2);
QCOMPARE(contents, QByteArray("Ha"));
dev->seek(2);
contents = dev->peek(2);
QCOMPARE(contents, QByteArray("ll"));
dev->seek(0);
contents = dev->read(2);
QCOMPARE(contents, QByteArray("Ha"));
contents = dev->peek(2);
QCOMPARE(contents, QByteArray("ll"));
dev->seek(1);
contents = dev->read(1);
QCOMPARE(contents, QByteArray("a"));
dev->seek(4);
contents = dev->read(1);
QCOMPARE(contents, QByteArray("o"));
const KArchiveEntry *e = dir->entry(QStringLiteral("mediumfile"));
QVERIFY(e && e->isFile());
f = (KArchiveFile *)e;
QCOMPARE(f->data().size(), SIZE1);
f = dir->file(QStringLiteral("hugefile"));
QCOMPARE(f->data().size(), 20000);
e = dir->entry(QStringLiteral("aaaemptydir"));
QVERIFY(e && e->isDirectory());
QVERIFY(!dir->file("aaaemptydir"));
e = dir->entry(QStringLiteral("my/dir/test3"));
QVERIFY(e && e->isFile());
f = (KArchiveFile *)e;
dev = f->createDevice();
QByteArray firstLine = dev->readLine();
QCOMPARE(QString::fromLatin1(firstLine.constData()), QString::fromLatin1("I do not speak German\n"));
QByteArray secondLine = dev->read(100);
QCOMPARE(QString::fromLatin1(secondLine.constData()), QString::fromLatin1("David."));
delete dev;
#ifndef Q_OS_WIN
e = dir->entry(QStringLiteral("z/test3_symlink"));
QVERIFY(e);
QVERIFY(e->isFile());
QCOMPARE(e->symLinkTarget(), QString("test3"));
#endif
// Test "./" prefix for KOffice (xlink:href="./ObjectReplacements/Object 1")
e = dir->entry(QStringLiteral("./hugefile"));
QVERIFY(e && e->isFile());
e = dir->entry(QStringLiteral("./my/dir/test3"));
QVERIFY(e && e->isFile());
// Test directory entries
e = dir->entry(QStringLiteral("my"));
QVERIFY(e && e->isDirectory());
e = dir->entry(QStringLiteral("my/"));
QVERIFY(e && e->isDirectory());
e = dir->entry(QStringLiteral("./my/"));
QVERIFY(e && e->isDirectory());
}
