A problem regarding QuaZip

[zgulser]

Hi,

I'm using QuaZip to archive my files like the following;

QByteArray LoggerManager::packFiles(const QString& p_name, const QByteArray& p_BytesToBrCompressed)
{
	QString testZip = p_name;
    QuaZip zip(testZip);
 
    zip.setFileNameCodec("IBM866"); /* or Windows-1250 */
 
    if(!zip.open(QuaZip::mdCreate))
	{
        qWarning("testCreate(): zip.open(): %d", zip.getZipError());
		return NULL;
    }
 
	QString loc = qApp->applicationDirPath() + "/logs/error_log/";
 
    QFileInfoList files=QDir(loc).entryInfoList();
    QFile inFile;
    QFile inFileTmp;
    QuaZipFile outFile(&zip);
    char c;
	QByteArray compressedData = "";
 
    foreach(QFileInfo file, files)
	{
        if(!file.isFile())
			continue;
 
        inFileTmp.setFileName(file.fileName());
        inFile.setFileName(file.filePath());
 
        if(!inFile.open(QIODevice::ReadOnly))
		{
			qWarning("testCreate(): inFile.open(): %s", inFile.errorString().toLocal8Bit().constData());
			return NULL;
        }
 
        if(!outFile.open(QIODevice::WriteOnly, QuaZipNewInfo(inFileTmp.fileName(), inFile.fileName())))
		{
 
			qWarning("testCreate(): outFile.open(): %d", outFile.getZipError());
			return NULL;
        }
 
        while(inFile.getChar(&c)&&outFile.putChar(c));
 
        if(outFile.getZipError()!=UNZ_OK)
		{
			qWarning("testCreate(): outFile.putChar(): %d", outFile.getZipError());
			return NULL;
        }
 
	compressedData = outFile.readAll();
 
        outFile.close();
 
		if(outFile.getZipError()!=UNZ_OK)
		{
			qWarning("testCreate(): outFile.close(): %d", outFile.getZipError());
			return NULL;
        }
 
        inFile.close();
    }
 
    zip.close();
 
    if(zip.getZipError()!=0) 
	{
        qWarning("testCreate(): zip.close(): %d", zip.getZipError());
		return NULL;
    }
 
    return compressedData;
}

QByteArray LoggerManager::packFiles(const QString& p_name, const QByteArray& p_BytesToBrCompressed)
{
	QString testZip = p_name;
    QuaZip zip(testZip);

    zip.setFileNameCodec("IBM866"); /* or Windows-1250 */

    if(!zip.open(QuaZip::mdCreate))
	{
        qWarning("testCreate(): zip.open(): %d", zip.getZipError());
		return NULL;
    }

	QString loc = qApp->applicationDirPath() + "/logs/error_log/";

    QFileInfoList files=QDir(loc).entryInfoList();
    QFile inFile;
    QFile inFileTmp;
    QuaZipFile outFile(&zip);
    char c;
	QByteArray compressedData = "";

    foreach(QFileInfo file, files)
	{
        if(!file.isFile())
			continue;

        inFileTmp.setFileName(file.fileName());
        inFile.setFileName(file.filePath());

        if(!inFile.open(QIODevice::ReadOnly))
		{
			qWarning("testCreate(): inFile.open(): %s", inFile.errorString().toLocal8Bit().constData());
			return NULL;
        }

        if(!outFile.open(QIODevice::WriteOnly, QuaZipNewInfo(inFileTmp.fileName(), inFile.fileName())))
		{
       
			qWarning("testCreate(): outFile.open(): %d", outFile.getZipError());
			return NULL;
        }

        while(inFile.getChar(&c)&&outFile.putChar(c));

        if(outFile.getZipError()!=UNZ_OK)
		{
			qWarning("testCreate(): outFile.putChar(): %d", outFile.getZipError());
			return NULL;
        }

	compressedData = outFile.readAll();

        outFile.close();
        
		if(outFile.getZipError()!=UNZ_OK)
		{
			qWarning("testCreate(): outFile.close(): %d", outFile.getZipError());
			return NULL;
        }

        inFile.close();
    }

    zip.close();

    if(zip.getZipError()!=0) 
	{
        qWarning("testCreate(): zip.close(): %d", zip.getZipError());
		return NULL;
    }

    return compressedData;
}

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The problem is; I want to send this zipped content to an HTTP server. But

compressedData = outFile.readAll();

compressedData = outFile.readAll();

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is non-sense since outFile is writeOnly which makes compressedData empty string.

I try the following to overcome this situation;

QFile reader(p_name);
		if(QFile::exists(reader.fileName()))
		{
			if(reader.open(QIODevice::ReadOnly))
			{
				compressedData.append(reader.readAll());
			}
		}

QFile reader(p_name);
		if(QFile::exists(reader.fileName()))
		{
			if(reader.open(QIODevice::ReadOnly))
			{
				compressedData.append(reader.readAll());
			}
		}

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But it didn't work either..

Any ideas?

[high_flyer]

Does the server support only HTTP? FTP would be better.

Is the archive read-only file (in the file system) or do you mean its only the attribute with which you open the QFile object, but the file it self is not read-only?

But it didn't work either..

By "not working" do you mean compressData is empty?

[zgulser]

Does the server support only HTTP? FTP would be better.

Yepp!

Is the archive read-only file (in the file system) or do you mean its only the attribute with which you open the QFile object, but the file it self is not read-only?

arcihive is opened write-only by default. That's why I can't read it. And I opened QFile object ad read-only by myself.

By "not working" do you mean compressData is empty?

Sorry..Yes.

[high_flyer]

and you are sure (by means of stepping trough or debug message) that:
compressedData.append(reader.readAll());
is being called?

[zgulser]

Yeah, definitely...

[high_flyer]

What is the size of the file when you look it up with a file manager?
What is the size of the file when you do reader.size()?

[zgulser]

it's size seems completely logical to me. About 20000 bytes.

[wysota]

And you can't reopen it in read only mode after you're done creating the archive?

[zgulser]

Hi,

I'm very sorry to take your time but my problem caused by VS 2010 debugger. I was actually reading the file contents properly but the debugger doesn't show me. When I did qDebug, I saw all the contents of the file that i'm reading.

thanks for your care.