bool os_remove_nonempty_dir(const std::wstring &path)
{
WIN32_FIND_DATAW wfd;
HANDLE hf=FindFirstFileW((path+L"\\*").c_str(), &wfd);
BOOL b=true;
while( b )
{
if( (std::wstring)wfd.cFileName!=L"." && (std::wstring)wfd.cFileName!=L".." )
{
if( wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
{
os_remove_nonempty_dir(path+L"\\"+wfd.cFileName);
}
else
{
DeleteFileW((path+L"\\"+wfd.cFileName).c_str());
}
}
b=FindNextFileW(hf,&wfd);
}
FindClose(hf);
RemoveDirectoryW(path.c_str());
return true;
}
bool remove_subvolume(std::string subvolume_folder)
{
#ifdef _WIN32
return os_remove_nonempty_dir(widen(subvolume_folder));
#else
int rc=system((btrfs_cmd+" subvolume delete \""+subvolume_folder+"\"").c_str());
return rc==0;
#endif
}
void BackupServer::operator()(void)
{
IDatabase *db=Server->getDatabase(Server->getThreadID(),URBACKUPDB_SERVER);
ISettingsReader *settings=Server->createDBSettingsReader(Server->getDatabase(Server->getThreadID(),URBACKUPDB_SERVER), "settings_db.settings");
#ifdef _WIN32
std::wstring tmpdir;
if(settings->getValue(L"tmpdir", &tmpdir) && !tmpdir.empty())
{
os_remove_nonempty_dir(tmpdir+os_file_sep()+L"urbackup_tmp");
if(!os_create_dir(tmpdir+os_file_sep()+L"urbackup_tmp"))
{
Server->wait(5000);
os_create_dir(tmpdir+os_file_sep()+L"urbackup_tmp");
}
Server->setTemporaryDirectory(tmpdir+os_file_sep()+L"urbackup_tmp");
}
else
{
wchar_t tmpp[MAX_PATH];
DWORD l;
if((l=GetTempPathW(MAX_PATH, tmpp))==0 || l>MAX_PATH )
{
wcscpy_s(tmpp,L"C:\\");
}
std::wstring w_tmp=tmpp;
if(!w_tmp.empty() && w_tmp[w_tmp.size()-1]=='\\')
{
w_tmp.erase(w_tmp.size()-1, 1); }
os_remove_nonempty_dir(w_tmp+os_file_sep()+L"urbackup_tmp");
if(!os_create_dir(w_tmp+os_file_sep()+L"urbackup_tmp"))
{
Server->wait(5000);
os_create_dir(tmpdir+os_file_sep()+L"urbackup_tmp");
}
Server->setTemporaryDirectory(w_tmp+os_file_sep()+L"urbackup_tmp");
}
#endif
if( settings->getValue("use_tmpfiles", "")!="true" )
{
std::wstring backupfolder;
if( settings->getValue(L"backupfolder", &backupfolder) )
{
std::wstring tmpfile_path=backupfolder+os_file_sep()+L"urbackup_tmp_files";
Server->Log("Removing temporary files...");
os_remove_nonempty_dir(tmpfile_path);
Server->Log("Recreating temporary folder...");
if(!os_create_dir(tmpfile_path))
{
Server->wait(5000);
os_create_dir(tmpfile_path);
}
}
}
testSnapshotAvailability(db);
q_get_extra_hostnames=db->Prepare("SELECT id,hostname FROM settings_db.extra_clients");
q_update_extra_ip=db->Prepare("UPDATE settings_db.extra_clients SET lastip=? WHERE id=?");
FileClient fc;
Server->wait(1000);
while(true)
{
findClients(fc);
startClients(fc);
if(!ServerStatus::isActive() && settings->getValue("autoshutdown", "false")=="true")
{
writestring("true", "urbackup/shutdown_now");
#ifdef _WIN32
ExitWindowsEx(EWX_POWEROFF|EWX_FORCEIFHUNG, SHTDN_REASON_MAJOR_APPLICATION|SHTDN_REASON_MINOR_OTHER );
#endif
}
std::string r;
exitpipe->Read(&r, 20000);
if(r=="exit")
{
removeAllClients();
exitpipe->Write("ok");
Server->destroy(settings);
db->destroyAllQueries();
delete this;
return;
}
}
}
bool remove_subvolume(int mode, std::string subvolume_folder, bool quiet=false)
{
#ifdef _WIN32
return os_remove_nonempty_dir(widen(subvolume_folder));
#else
if(mode==mode_btrfs)
{
int compat_rc = exec_wait(find_btrfs_cmd(), false, "subvolume", "delete", "-c", NULL);
if(compat_rc==1)
{
compat_rc = exec_wait("/bin/sh", false, "-c", (find_btrfs_cmd() +
" subvolume delete -c 2>&1 | grep \"ERROR: error accessing '-c'\"").c_str(), NULL);
if(compat_rc==0)
{
compat_rc=12;
}
}
int rc;
if(compat_rc==12)
{
rc=exec_wait(find_btrfs_cmd(), !quiet, "subvolume", "delete", subvolume_folder.c_str(), NULL);
}
else
{
rc=exec_wait(find_btrfs_cmd(), !quiet, "subvolume", "delete", "-c", subvolume_folder.c_str(), NULL);
}
return rc==0;
}
else if(mode==mode_zfs)
{
zfs_elevate();
exec_wait(find_zfs_cmd(), false, "destroy", (subvolume_folder+"@ro").c_str(), NULL);
int rc = exec_wait(find_zfs_cmd(), false, "destroy", subvolume_folder.c_str(), NULL);
if(rc!=0)
{
std::cout << "Destroying subvol " << subvolume_folder << " failed. Promoting dependencies..." << std::endl;
std::string rename_name = ExtractFileName(subvolume_folder);
if(exec_wait(find_zfs_cmd(), true, "rename", (subvolume_folder+"@ro").c_str(), (subvolume_folder+"@"+rename_name).c_str(), NULL)!=0
&& is_subvolume(mode, subvolume_folder+"@ro") )
{
return false;
}
std::vector<std::string> dependencies;
if(!promote_dependencies(subvolume_folder+"@"+rename_name, dependencies))
{
return false;
}
rc = exec_wait(find_zfs_cmd(), true, "destroy", subvolume_folder.c_str(), NULL);
if(rc==0)
{
for(size_t i=0;i<dependencies.size();++i)
{
if(is_subvolume(mode, dependencies[i]+"@"+rename_name))
{
rc = exec_wait(find_zfs_cmd(), true, "destroy", (dependencies[i]+"@"+rename_name).c_str(), NULL);
if(rc!=0)
{
break;
}
}
}
}
}
return rc==0;
}
return false;
#endif
}