sfa/dummy/dummyxrn.py

   1 # specialized Xrn class for Dummy TB
   2 import re
   3 from sfa.util.xrn import Xrn
   4
   5 # temporary helper functions to use this module instead of namespace
   6 def hostname_to_hrn (auth, testbed_name, hostname):
   7     return DummyXrn(auth=auth+'.'+testbed_name,hostname=hostname).get_hrn()
   8 def hostname_to_urn(auth, testbed_name, hostname):
   9     return DummyXrn(auth=auth+'.'+testbed_name,hostname=hostname).get_urn()
  10 def slicename_to_hrn (auth_hrn, slicename):
  11     return DummyXrn(auth=auth_hrn,slicename=slicename).get_hrn()
  12 def email_to_hrn (auth_hrn, email):
  13     return DummyXrn(auth=auth_hrn, email=email).get_hrn()
  14 def hrn_to_dummy_slicename (hrn):
  15     return DummyXrn(xrn=hrn,type='slice').dummy_slicename()
  16 def hrn_to_dummy_authname (hrn):
  17     return DummyXrn(xrn=hrn,type='any').dummy_authname()
  18 def xrn_to_hostname(hrn):
  19     return Xrn.unescape(PlXrn(xrn=hrn, type='node').get_leaf())
  20
  21 class DummyXrn (Xrn):
  22
  23     @staticmethod
  24     def site_hrn (auth, testbed_name):
  25         return '.'.join([auth,testbed_name])
  26
  27     def __init__ (self, auth=None, hostname=None, slicename=None, email=None, interface=None, **kwargs):
  28         #def hostname_to_hrn(auth_hrn, login_base, hostname):
  29         if hostname is not None:
  30             self.type='node'
  31             # keep only the first part of the DNS name
  32             #self.hrn='.'.join( [auth,hostname.split(".")[0] ] )
  33             # escape the '.' in the hostname
  34             self.hrn='.'.join( [auth,Xrn.escape(hostname)] )
  35             self.hrn_to_urn()
  36         #def slicename_to_hrn(auth_hrn, slicename):
  37         elif slicename is not None:
  38             self.type='slice'
  39             # split at the first _
  40             parts = slicename.split("_",1)
  41             self.hrn = ".".join([auth] + parts )
  42             self.hrn_to_urn()
  43         #def email_to_hrn(auth_hrn, email):
  44         elif email is not None:
  45             self.type='person'
  46             # keep only the part before '@' and replace special chars into _
  47             self.hrn='.'.join([auth,email.split('@')[0].replace(".", "_").replace("+", "_")])
  48             self.hrn_to_urn()
  49         elif interface is not None:
  50             self.type = 'interface'
  51             self.hrn = auth + '.' + interface
  52             self.hrn_to_urn()
  53         else:
  54             Xrn.__init__ (self,**kwargs)
  55
  56     #def hrn_to_pl_slicename(hrn):
  57     def dummy_slicename (self):
  58         self._normalize()
  59         leaf = self.leaf
  60         sliver_id_parts = leaf.split(':')
  61         name = sliver_id_parts[0]
  62         name = re.sub('[^a-zA-Z0-9_]', '', name)
  63         return name
  64
  65     #def hrn_to_pl_authname(hrn):
  66     def dummy_authname (self):
  67         self._normalize()
  68         return self.authority[-1]
  69
  70     def interface_name(self):
  71         self._normalize()
  72         return self.leaf
  73
  74     def dummy_login_base (self):
  75         self._normalize()
  76         if self.type and self.type.startswith('authority'):
  77             base = self.leaf
  78         else:
  79             base = self.authority[-1]
  80
  81         # Fix up names of GENI Federates
  82         base = base.lower()
  83         base = re.sub('\\\[^a-zA-Z0-9]', '', base)
  84
  85         if len(base) > 20:
  86             base = base[len(base)-20:]
  87
  88         return base