void UUIDLinker::diskAppeared(DADiskRef disk, DiskInformation const & di)
{
auto mediaUUIDs = getUUIDs(di);
for (auto mediaID: mediaUUIDs)
{
try
{
mediaID = m_base + "/" + mediaID;
std::string devicePath = "/dev/" + di.mediaBSDName;
logger().log(ASL_LEVEL_NOTICE, "Creating symlink: ", mediaID, " -> ", devicePath);
createSymlink(mediaID, devicePath);
}
catch (std::exception const & e)
{
logger().log(ASL_LEVEL_ERR, "Could not create symlink: ", e.what());
}
}
}
//
// private methods
//
void ExportSymlinks::doExport()
{
KFileItem * currentFile;
for ( currentFile = m_sourceFiles->first(); currentFile; currentFile = m_sourceFiles->next() ) {
QString symlink = QString("%1/%2").arg(*m_destinationDir).arg(currentFile->name());
m_progressDialog->setLabel(symlink);
kapp->processEvents();
createSymlink(currentFile->url().path(), symlink);
// in any case increase progress
m_progressDialog->progressBar()->advance(1);
// exit loop if cancel was called
if (m_cancelling) {
break;
}
}
m_progressDialog->hide();
}
void ExportSymlinks::createSymlink(QString sourceFile, QString symlink)
{
tracer->sinvoked(__func__) << "Creating symlink: " << symlink << "-->" << sourceFile << endl;
// create the symbolic link
int result = ::symlink(sourceFile.ascii(), symlink.ascii());
// handle possible problems
if (result != 0) {
int errorNo = errno;
tracer->serror(__func__) << "Could not create symlink: '" << strerror(errorNo) << "' (" << symlink << "-->" << sourceFile << ")" << endl;
// an error occured
switch ( errorNo ) {
case EPERM: {
tracer->serror(__func__) << "The filesystem containing newpath does not support the creation of symbolic links: " << *m_destinationDir << endl;
QString msg = QString(i18n("The filesystem containing the destination directory does not support symbolic links:\n%1")).arg(*m_destinationDir);
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
case EFAULT: {
tracer->serror(__func__) << "Oldpath or newpath points outside your accessible address space: " << symlink << "-->" << sourceFile << endl;
QString msg = QString(i18n("Sourcefile or destinationfile points outside your accessible address space:\nSource: %1\nDestination: %2")).arg(sourceFile).arg(symlink);
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
case EACCES: {
tracer->serror(__func__) << "Write access to the directory containing newpath is not allowed for the process's effective uid, or one of the directories in newpath did not allow search (execute) permission: " << *m_destinationDir << endl;
QString msg = QString(i18n("Can not write to the specified destination directory:\n%1\nPlease check that you have write permission.")).arg(*m_destinationDir);
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
case ENAMETOOLONG: {
tracer->serror(__func__) << "Oldpath or newpath was too long: " << symlink << "-->" << sourceFile << endl;
QString msg = QString(i18n("The Sourcefilename or destinationfilename is too long:\nSource: %1\nDestination: %2")).arg(sourceFile).arg(symlink);
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
case ENOENT: {
tracer->serror(__func__) << "A directory component in newpath does not exist or is a dangling symbolic link: " << *m_destinationDir << endl;
QString msg = QString(i18n("The destination directory is invalid:\n%1")).arg(*m_destinationDir);
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
case ENOTDIR: {
tracer->serror(__func__) << "A component used as a directory in newpath is not, in fact, a directory: " << *m_destinationDir << endl;
QString msg = QString(i18n("The destination directory is invalid:\n%1")).arg(*m_destinationDir);
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
case ENOMEM: {
tracer->serror(__func__) << "Insufficient kernel memory was available." << endl;
QString msg = QString(i18n("Insufficient kernel memory was available."));
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
case EROFS: {
tracer->serror(__func__) << "Newpath is on a read-only filesystem: " << *m_destinationDir << endl;
QString msg = QString(i18n("The destination directory is on a read only filesystem:\n%1")).arg(*m_destinationDir);
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
case EEXIST: {
tracer->sinfo(__func__) << "Newpath already exists: " << symlink << endl;
if (m_autoSkip) {
tracer->sinfo(__func__) << "Autoskip is enabled. proceeding with next file." << endl;
} else if (m_overwriteAll) {
tracer->sinfo(__func__) << "Overwrite all is enabled. deleting existing file." << endl;
if(::remove(symlink.ascii()) == 0) {
// already existing file successfully removed
createSymlink(sourceFile, symlink);
} else {
// could not delete existing file
tracer->serror(__func__) << "Could not delete file: '" << strerror(errno) << "' (" << symlink << ")" << endl;
QString msgOverwriteAllDisabled = QString(i18n("\nFunction 'Overwrite all' disabled automatically!"));
QString msg = QString(i18n("Could not overwrite the destination file:\n%1%2")).arg(symlink).arg(msgOverwriteAllDisabled);
KMessageBox::sorry(m_parent, msg, i18n("Could not overwrite"));
// reset overwrite all
m_overwriteAll = false;
createSymlink(sourceFile, symlink);
}
} else {
KIO::RenameDlg* renameDlg = new KIO::RenameDlg(
m_parent, // parent
i18n("File already exists"), // caption
sourceFile, // source
symlink, // destination
(KIO::RenameDlg_Mode)(KIO::M_OVERWRITE | KIO::M_SKIP | KIO::M_MULTI) // mode
);
renameDlg->setModal(true);
int result = renameDlg->exec();
renameDlg->hide();
// analyze the chosen action
switch (result) {
case KIO::R_CANCEL: {
m_cancelling = true;
break;
}
case KIO::R_RENAME: {
createSymlink(sourceFile, renameDlg->newDestURL().path().ascii());
break;
}
case KIO::R_AUTO_SKIP: {
m_autoSkip = true;
m_overwriteAll = false;
}
case KIO::R_SKIP: {
// nothing to do... just skip
break;
}
case KIO::R_OVERWRITE_ALL: {
m_overwriteAll = true;
m_autoSkip = false;
}
case KIO::R_OVERWRITE: {
if(::remove(symlink.ascii()) == 0) {
// already existing file successfully removed
createSymlink(sourceFile, symlink);
} else {
// could not delete existing file
tracer->serror(__func__) << "Could not delete file: '" << strerror(errno) << "' (" << symlink << ")" << endl;
QString msgOverwriteAllDisabled = QString::null;
if (m_overwriteAll) {
msgOverwriteAllDisabled = QString(i18n("\nFunction 'Overwrite all' disabled automatically!"));
}
QString msg = QString(i18n("Could not overwrite the destination file:\n%1%2")).arg(symlink).arg(msgOverwriteAllDisabled);
KMessageBox::sorry(m_parent, msg, i18n("Could not overwrite"));
// reset overwrite all
m_overwriteAll = false;
createSymlink(sourceFile, symlink);
}
break;
}
}
delete renameDlg;
}
break;
}
case ELOOP: {
tracer->serror(__func__) << "To many symbolic links were encountered in resolving newpath: " << *m_destinationDir << endl;
QString msg = QString(i18n("The destination path contains too many symbolic links:\n%1")).arg(*m_destinationDir);
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
case ENOSPC: {
tracer->serror(__func__) << "The device containing the file has no room for the new directory entry: " << *m_destinationDir << endl;
QString msg = QString(i18n("The device for the destination directory is full:\n%1")).arg(*m_destinationDir);
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
case EIO: {
tracer->serror(__func__) << "An I/O error occurred: " << symlink << "-->" << sourceFile << endl;
QString msg = QString(i18n("An I/O error occured:\nSource: %1\nDestination: %2")).arg(sourceFile).arg(symlink);
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
default: {
tracer->serror(__func__) << "An unexpected error number catched (" << errorNo << "): " << symlink << "-->" << sourceFile << endl;
QString msg = QString(i18n("An unexpected error occured while creating symbolic link:\nSource: %1\nDestination: %2")).arg(sourceFile).arg(symlink);
KMessageBox::sorry(m_parent, msg, i18n("Could not export"));
m_cancelling = true;
break;
}
}
}
}