QFtp : Uploading a directory

Hi all,

Here is my problem:

Purpose:- Upload a directory from local host to remote machine (remote ftp server)

Qt Class in use:- QFtp Class

Problem:-

Source code given below, works fine if I put QmessageBox after line:

ftp->mkdir(directoryName);

Otherwise I get the error-

Changing directory failed:
Failed to change directory.

Source Code:-

Code:

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uploadDirectory(QDir dir){
 
    QString absPath=dir.absPath();  
 
    QString directoryName=absPath.section('/',-1); 
    dir.setSorting(QDir::DirsFirst);  
    const QFileInfoList *localFileInfoList = dir.entryInfoList();    
 
   QFileInfoListIterator fileIterator(*localFileInfoList );
   int count=localFileInfoList->count();   
 
    QFileInfo* file;
    int mkdirFlag =1;
 
    for(int temp=0;temp<count;temp++) {
 
	file=fileIterator.current();
	if(mkdirFlag){
 
	    ftp->rawCommand( "PWD" );	    
	    ftp->mkdir(directoryName);
	    mkdirFlag=0;    
	    currentDir->cd(directoryName);
	    QString ftpString=ftpDir+QString("/")+directoryName;
	     ftp->cd(ftpString);
 
	}	
 
	if(file->isDir() && file->fileName()!="." && file->fileName()!=".."){
	uploadDirectory(QDir(currentDir->absPath()+QString("/")+QString(file->fileName())));
 
	}	
	if(!file->isDir())
	    uploadFile(currentDir->absPath()+QString("/")+file->fileName());
 
	++fileIterator;	
    }
    ftp->cd("..");  
 
    currentDir->cdUp();    
}

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Description:-

ftp:-denotes the remote ftp(Class QFtp)
currentDir:-denotes the current local directory(QDir)
ftpDir:-denotes current remote file path (QString)

Note: - we get this value by sending PWD command( ftp->rawCommand( "PWD") ) in the command reply function we set this value in ftpDir

directoryName:- if dir is “home/username/folder1” then directoryName gives folder1
uploadFile() function uploads the given file

Observation:-

It takes time to complete the function like get, put, mkdir, cd etc. and these functions are nonblocking. Program doesn’t block here. Just take an example if I call ‘mkdir’ (ftp->mkdir()) then program doesn’t wait for completion of this function. It goes to next line and performs (ftp->cd()) and I get the error.

How should I resolve this problem?

Thanks :)

I think you should download the book c++ GUI Programming with Qt3.

There a chapter called "Networking" which talks brilliantly about what you require.

Quote:

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Originally Posted by smshamim

Hi all,

Here is my problem:

Purpose:- Upload a directory from local host to remote machine (remote ftp server)
How should I resolve this problem?

Thanks :)

---

Here is a snip from QT4 + libcurl easy on all OS....
Is possibel to mkdir realy "mkd" if remote dir not exist!

Code:

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/* header #include <curl/curl.h>  */
bool Qjobs::UploadFileServer( QString ftpfile , QString remotefile )
{
    /* header #include <curl/curl.h>  */
    /* ftp upload to server file binary  */
    curl_global_init( CURL_GLOBAL_ALL ) ;
    CURL *curl_handle = curl_easy_init() ;
 
    if( NULL == curl_handle ){
		return false;
	}
    QFileInfo QuoInfo(ftpfile);
    long fzize = QuoInfo.size();   /* file size */
    /*   ftpfile   = c:\image.jpg  /    remotefile = ftp://username:pass@host.com:21/path/image.jpg   /path/ related to ftp login   */
    /* url =  ftp:{login}:{password}@{host}:21{dated dir}{data remotefile}  */
    QByteArray lop = ftpfile.toAscii();
    QByteArray ba = remotefile.toAscii();
    char *localfile = lop.data();
    FILE *putfile;
    putfile = fopen(localfile, "rb");  /* binary image! */
    char *url = ba.data();
    /*
    qDebug() << "### localfile " << localfile;
    qDebug() << "### Puturl " << url;
    */
    /* handy for debugging: see *everything* that goes on */
    /* curl_easy_setopt( curl_handle , CURLOPT_VERBOSE, 1 ) ; */    /* open to debug to sea actions */
	// target url:
	curl_easy_setopt( curl_handle , CURLOPT_URL,  url ) ;
	// no progress bar:
	curl_easy_setopt(curl_handle,CURLOPT_NOPROGRESS , 1 ) ;
	// use passive FTP, if it's available
	curl_easy_setopt(curl_handle,CURLOPT_FTP_USE_EPSV , 1 ) ;
    curl_easy_setopt(curl_handle,CURLOPT_TIMEOUT , 15 );    /* put on server config qwidget */
    curl_easy_setopt(curl_handle,CURLOPT_UPLOAD , 1 );
	curl_easy_setopt(curl_handle,CURLOPT_INFILE , putfile );
    curl_easy_setopt(curl_handle,CURLOPT_INFILESIZE , fzize );
    /* make action */
    if (curl_easy_perform(curl_handle)==CURLE_OK) {
        curl_easy_cleanup( curl_handle );
	    curl_global_cleanup();
        return true;  
    } else {
        return false;  
    }
}
 
 
 
 
 
	// yes, it's "mkd" and not "mkdir" (many clients translate it for you)
	// see RFC 959 for details:
	//
	//    http://www.ietf.org/rfc/rfc959.txt
	//
	// NOTE: creating/changing to the dir isn't necessary here; it's done as
	// part of the example of using CURLOPT_QUOTE.  You could simply have
	// specified CURLOPT_FTP_CREATE_MISSING_DIRS.
 
	commandBuf << "mkd " << remotePath << std::flush ;
	const std::string mkdirCommand = commandBuf.str() ;
	commands = curl_slist_append( commands , mkdirCommand.c_str() ) ;
 
	// NOTE: cURL will try to change dirs (based on the URL)
	// from the present directory (by default, your home dir
	// on the remote system).
 
	// To upload data to an absolute path on the remote host,
	// you must change to the root dir first.
	commands = curl_slist_append( commands , "cwd /" ) ;
	// from here, cURL will "cwd tmp" and "cwd {timestamp dir}"

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