qftp.cpp File Reference

#include "qftp.h"
#include "qabstractsocket.h"
#include "qcoreapplication.h"
#include "qtcpsocket.h"
#include "qurlinfo.h"
#include "qstringlist.h"
#include "qregexp.h"
#include "qtimer.h"
#include "qfileinfo.h"
#include "qhash.h"
#include "qtcpserver.h"
#include "qlocale.h"
#include <private/qobject_p.h>
#include "qftp.moc"
#include "moc_qftp.cpp"

Go to the source code of this file.

Classes
class	QFtpCommand
class	QFtpDTP
class	QFtpPI
class	QFtpPrivate

Functions
static void	_q_fixupDateTime (QDateTime *dateTime, bool leapYear=false)
static void	_q_parseDosDir (const QStringList &tokens, const QString &userName, QUrlInfo *info)
static void	_q_parseUnixDir (const QStringList &tokens, const QString &userName, QUrlInfo *info)

Function Documentation

_q_fixupDateTime()

static void _q_fixupDateTime ( QDateTime *  dateTime, bool  leapYear = false  )

static

Definition at line 469 of file qftp.cpp.

Referenced by _q_parseUnixDir().

{
    // Adjust for future tolerance.
    const int futureTolerance = 86400;
    if (dateTime->secsTo(QDateTime::currentDateTime()) < -futureTolerance) {
        QDate d = dateTime->date();
        if (leapYear) {
            int prevLeapYear = d.year() - 1;

            while (!QDate::isLeapYear(prevLeapYear))
               prevLeapYear--;

            d.setYMD(prevLeapYear, d.month(), d.day());
        } else {
            d.setYMD(d.year() - 1, d.month(), d.day());
        }
        dateTime->setDate(d);
    }
}

_q_parseDosDir()

static void _q_parseDosDir ( const QStringList &  tokens, const QString &  userName, QUrlInfo *  info  )

static

Definition at line 598 of file qftp.cpp.

Referenced by QFtpDTP::parseDir().

{
    // DOS style, 3 + 1 entries
    // 01-16-02  11:14AM       <DIR>          epsgroup
    // 06-05-03  03:19PM                 1973 readme.txt
    if (tokens.size() != 4)
        return;

    Q_UNUSED(userName);

    QString name = tokens.at(3);
    info->setName(name);
    info->setSymLink(name.toLower().endsWith(QLatin1String(".lnk")));

    if (tokens.at(2) == QLatin1String("<DIR>")) {
        info->setFile(false);
        info->setDir(true);
    } else {
        info->setFile(true);
        info->setDir(false);
        info->setSize(tokens.at(2).toLongLong());
    }

    // Note: We cannot use QFileInfo; permissions are for the server-side
    // machine, and QFileInfo's behavior depends on the local platform.
    int permissions = QUrlInfo::ReadOwner | QUrlInfo::WriteOwner
                      | QUrlInfo::ReadGroup | QUrlInfo::WriteGroup
                      | QUrlInfo::ReadOther | QUrlInfo::WriteOther;
    QString ext;
    int extIndex = name.lastIndexOf(QLatin1Char('.'));
    if (extIndex != -1)
        ext = name.mid(extIndex + 1);
    if (ext == QLatin1String("exe") || ext == QLatin1String("bat") || ext == QLatin1String("com"))
        permissions |= QUrlInfo::ExeOwner | QUrlInfo::ExeGroup | QUrlInfo::ExeOther;
    info->setPermissions(permissions);

    info->setReadable(true);
    info->setWritable(info->isFile());

    QDateTime dateTime;
#ifndef QT_NO_DATESTRING
    dateTime = QLocale::c().toDateTime(tokens.at(1), QLatin1String("MM-dd-yy  hh:mmAP"));
    if (dateTime.date().year() < 1971) {
        dateTime.setDate(QDate(dateTime.date().year() + 100,
                               dateTime.date().month(),
                               dateTime.date().day()));
    }
#endif

    info->setLastModified(dateTime);

}

_q_parseUnixDir()

static void _q_parseUnixDir ( const QStringList &  tokens, const QString &  userName, QUrlInfo *  info  )

static

Definition at line 489 of file qftp.cpp.

Referenced by QFtpDTP::parseDir().

{
    // Unix style, 7 + 1 entries
    // -rw-r--r--    1 ftp      ftp      17358091 Aug 10  2004 qt-x11-free-3.3.3.tar.gz
    // drwxr-xr-x    3 ftp      ftp          4096 Apr 14  2000 compiled-examples
    // lrwxrwxrwx    1 ftp      ftp             9 Oct 29  2005 qtscape -> qtmozilla
    if (tokens.size() != 8)
        return;

    char first = tokens.at(1).at(0).toLatin1();
    if (first == 'd') {
        info->setDir(true);
        info->setFile(false);
        info->setSymLink(false);
    } else if (first == '-') {
        info->setDir(false);
        info->setFile(true);
        info->setSymLink(false);
    } else if (first == 'l') {
        info->setDir(true);
        info->setFile(false);
        info->setSymLink(true);
    }

    // Resolve filename
    QString name = tokens.at(7);
    if (info->isSymLink()) {
        int linkPos = name.indexOf(QLatin1String(" ->"));
        if (linkPos != -1)
            name.resize(linkPos);
    }
    info->setName(name);

    // Resolve owner & group
    info->setOwner(tokens.at(3));
    info->setGroup(tokens.at(4));

    // Resolve size
    info->setSize(tokens.at(5).toLongLong());

    QStringList formats;
    formats << QLatin1String("MMM dd  yyyy") << QLatin1String("MMM dd hh:mm") << QLatin1String("MMM  d  yyyy")
            << QLatin1String("MMM  d hh:mm") << QLatin1String("MMM  d yyyy") << QLatin1String("MMM dd yyyy");

    QString dateString = tokens.at(6);
    dateString[0] = dateString[0].toUpper();

    // Resolve the modification date by parsing all possible formats
    QDateTime dateTime;
    int n = 0;
#ifndef QT_NO_DATESTRING
    do {
        dateTime = QLocale::c().toDateTime(dateString, formats.at(n++));
    }  while (n < formats.size() && (!dateTime.isValid()));
#endif

    if (n == 2 || n == 4) {
        // Guess the year.
        dateTime.setDate(QDate(QDate::currentDate().year(),
                               dateTime.date().month(),
                               dateTime.date().day()));
        _q_fixupDateTime(&dateTime);
    }
    if (dateTime.isValid())
        info->setLastModified(dateTime);
    else if (dateString.startsWith(QLatin1String("Feb 29"))) {

       // When the current year on the FTP server is a leap year and a
       // file's last modified date is Feb 29th, and the current day on
       // the FTP server is also Feb 29th, then the date can be in
       // formats n==2 or n==4. toDateTime in that case defaults to 1900
       // for the missing year. Feb 29 1900 is an invalid date and so
       // wont be parsed. This adds an exception that handles it.

       int recentLeapYear;
       QString timeString = dateString.mid(7);

       dateTime = QLocale::c().toDateTime(timeString, QLatin1String("hh:mm"));

       recentLeapYear = QDate::currentDate().year();

       while (!QDate::isLeapYear(recentLeapYear))
           recentLeapYear--;

       dateTime.setDate(QDate(recentLeapYear, 2, 29));

       _q_fixupDateTime(&dateTime, true);
       info->setLastModified(dateTime);
    }

    // Resolve permissions
    int permissions = 0;
    QString p = tokens.at(2);
    permissions |= (p[0] == QLatin1Char('r') ? QUrlInfo::ReadOwner : 0);
    permissions |= (p[1] == QLatin1Char('w') ? QUrlInfo::WriteOwner : 0);
    permissions |= (p[2] == QLatin1Char('x') ? QUrlInfo::ExeOwner : 0);
    permissions |= (p[3] == QLatin1Char('r') ? QUrlInfo::ReadGroup : 0);
    permissions |= (p[4] == QLatin1Char('w') ? QUrlInfo::WriteGroup : 0);
    permissions |= (p[5] == QLatin1Char('x') ? QUrlInfo::ExeGroup : 0);
    permissions |= (p[6] == QLatin1Char('r') ? QUrlInfo::ReadOther : 0);
    permissions |= (p[7] == QLatin1Char('w') ? QUrlInfo::WriteOther : 0);
    permissions |= (p[8] == QLatin1Char('x') ? QUrlInfo::ExeOther : 0);
    info->setPermissions(permissions);

    bool isOwner = info->owner() == userName;
    info->setReadable((permissions & QUrlInfo::ReadOther) || ((permissions & QUrlInfo::ReadOwner) && isOwner));
    info->setWritable((permissions & QUrlInfo::WriteOther) || ((permissions & QUrlInfo::WriteOwner) && isOwner));
}