Beispiel #1
0
/*!
    Returns the list of file extensions associated with the MIME type.
*/
QStringList QMimeType::extensions() const
{
    if(loadedTimes()->count() == 0)
        loadExtensions();

    return extFor()->value(mimeId);
}
Beispiel #2
0
/*!
    \internal
    Clears out the internal structures, to force a reload of the information.
*/
void QMimeType::clear()
{
    QMutexLocker staticsGuard(&staticsGuardMutex);
    extFor()->clear();
    typeFor()->clear();
    loadedTimes()->clear();
    mimeTypeDataCache()->clear();
}
/*!
    \internal
    Loads the mime type to extensions mapping
*/
static void loadExtensions()
{
    QMutex mutex;
    mutex.lock();
    static bool loaded = false;

    if(loaded)
    {
        mutex.unlock();
        return;
    }

    QFile file(":qtopiamail/mime.types");
    if ( file.open(QIODevice::ReadOnly) ) {
        char line[1024];

        while (file.readLine(line, sizeof(line)) > 0) {
            if (line[0] == '\0' || line[0] == '#')
                continue;
            int posn = 0;
            QString id = nextString(line, posn);
            if ( id.isEmpty() )
                continue;
            id = id.toLower();

            QStringList exts = extFor()->value(id);

            for( QString ext = nextString( line, posn ); !ext.isEmpty(); ext = nextString(line, posn).toLower() )
            {
                if( !exts.contains( ext ) )
                {
                    exts.append( ext );

                    typeFor()->insert(ext, id);
                }
            }
            (*extFor())[ id ] = exts;
        }
        loaded = true;
    }
    mutex.unlock();
}
/*!
    Returns the string mime type based on the filename \a filename.
*/
QString QMail::mimeTypeFromFileName(const QString& filename)
{
    if (filename.isEmpty())
        return QString();

    loadExtensions();

    // do a case insensitive search for a known mime type.
    QString lwrExtOrId = filename.toLower();
    QHash<QString,QStringList>::const_iterator it = extFor()->find(lwrExtOrId);
    if (it != extFor()->end()) {
        return lwrExtOrId;
    }

    // either it doesnt have exactly one mime-separator, or it has
    // a path separator at the beginning
    QString mime_sep = QLatin1String("/");
    bool doesntLookLikeMimeString = (filename.count(mime_sep) != 1) || (filename[0] == QDir::separator());

    if (doesntLookLikeMimeString || QFile::exists(filename)) {
        int dot = filename.lastIndexOf('.');
        QString ext = dot >= 0 ? filename.mid(dot+1) : filename;

        QHash<QString,QString>::const_iterator it = typeFor()->find(ext.toLower());
        if (it != typeFor()->end()) {
            return *it;
        }

        const char elfMagic[] = { '\177', 'E', 'L', 'F', '\0' };
        QFile ef(filename);
        if (ef.exists() && (ef.size() > 5) && ef.open(QIODevice::ReadOnly) && (ef.peek(5) == elfMagic)) { // try to find from magic
            return QLatin1String("application/x-executable");  // could be a shared library or an exe
        } else {
            return QLatin1String("application/octet-stream");
        }
    }

    // could be something like application/vnd.oma.rights+object
    return lwrExtOrId;
}
/*!
    Returns a list of valid file extensions for the mime type string \a mimeType
    or an empty list if the mime type is unrecognized.
*/
QStringList QMail::extensionsForMimeType(const QString& mimeType)
{
    loadExtensions();
    return extFor()->value(mimeType);
}