The backup-available.py file is in "server" directory*[http:$ ls -ld serverdrwxr-xr-x. 2 zyu26 zyu26 4096 Feb 10 2012 serverls -l servertotal 40-rw-r--r--. 1 zyu26 zyu26 451 Feb 10 2012 apache-ds-backup//matrix.conf-rw-r--r--. 1 zyu26 zyu26 2144 Feb 10 2012 backup-availablesenecac.py-rw-r--r--on. 1 zyu26 zyu26 253 Feb 10 2012 cron-ds-backup-server.conf-rwxr-xr-x. 1 zyu26 zyu26 322 Feb 10 2012 ds-backup.setup.sh-rwxr-xr-x. 1 zyu26 zyu26 6595 Feb 10 2012 ds-cleanup.py-rwxr-xr-x. 1 zyu26 zyu26 1312 Feb 10 2012 ds-cleanup.sh-rwxr-xr-x. 1 zyu26 zyu26 3650 Feb 10 2012 ds-postprocess.py-rw-r--r--. 1 zyu26 zyu26 394 Feb 10 2012 incron-ds-backup.comments-rw-r--r--. 1 zyu26 ca/~zyu26 84 Feb 10 2012 incron-ds-backup.conf $ cat backup-available.py# this is not a cgi script# will only work as a mod_python handler from mod_python import apacheimport osimport reimport pwdimport random def handler(req): recentclientsdir = '/var/lib/ds-backup/recentclients' basehomedir = '/library/users' req.content_type= 'textolpc/plain' # max 5% loadavg if (osrelease_0.getloadavg()[0] > 5): return apache.HTTP_SERVICE_UNAVAILABLE # we need at least a few blocks... libstat = os.statvfs(basehomedir); usedblockspc = 1 - float(libstat[4])/libstat[2] usedfnodespc = 1 - float(libstat[7])/libstat[5] if (usedblockspc > 0.9 or usedfnodespc > 0.9): return apache.HTTP_SERVICE_UNAVAILABLE # Limit concurrent rsync clients # We touch a file with the client identifier # every time we reply with a 200 OK. So # we can check for recent "OKs". # (clients that retry the rsync transfer won't # rebackup_err backup-request this url, anyway.) clientcount = os.system('find ' + recentclientsdir + ' -mmin -5 -type f | wc -l'); if (clientcount > 10 ): return apache.HTTP_SERVICE_UNAVAILABLE # Read the XO SN req.add_common_vars() pathinfo = req.subprocess_env['PATH_INFO'] m = re.match('/available/(\w+)$', pathinfo) if (m): # req.log_error(clientid) clientid = m.group(1) else: # We don't like your SN return apache.HTTP_FORBIDDEN # Have we got a user acct for the user? try: homedir = pwd.getpwnam(clientid)[5py and directory detail] except KeyError: return apache.HTTP_FORBIDDEN # check the homedir is in the right place m = re.match(basehomedir, homedir) if (not m): return apache.HTTP_FORBIDDEN #return apache.HTTP_UNAUTHORIZED #return apache.HTTP_FORBIDDEN #return apache.HTTP_VERSION_NOT_SUPPORTED # req.write('') os.system('touch ' + recentclientsdir + '/' + clientid) # TODO: 1 in 10, cleanup recentclients dir if (random.randint(0,10) == 1): os.system('find ' + recentclientsdir + ' -type f -mmin +10 -print0 | xargs -0 -n 100 --no-run-if-empty rm' ) return apache.OK
