import tempfile import commands import os class NodeManager: method = None def __init__(self, config): self.config = config def __getattr__(self, method): self.method = method return self.__call__ def __call__(self, *args): method = self.method sfa_slice_prefix = self.config.SFA_CM_SLICE_PREFIX sfa_slice = sfa_slice_prefix + "_sfacm" python = "/usr/bin/python" vserver_path = "/vservers/%s" % (sfa_slice) script_path = "/tmp/" path = "%(vserver_path)s/%(script_path)s" % locals() (fd, filename) = tempfile.mkstemp(dir=path) scriptname = script_path + os.sep + filename.split(os.sep)[-1:][0] # define the script to execute script = """ #!%(python)s import xmlrpclib s = xmlrpclib.ServerProxy('http://127.0.0.1:812') print s.%(method)s%(args)s""" % locals() try: # write the script to a temporary file f = open(filename, 'w') f.write(script % locals()) f.close() # make the file executeable chmod_cmd = "/bin/chmod 775 %(filename)s" % locals() (status, output) = commands.getstatusoutput(chmod_cmd) # execute the commad as a slice with root NM privs cmd = 'su - %(sfa_slice)s -c "%(python)s %(scriptname)s"' % locals() (status, output) = commands.getstatusoutput(cmd) return (status, output) finally: os.unlink(filename)