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
   7
   8 def hostname_to_hrn(auth, testbed_name, hostname):
   9     return DummyXrn(auth=auth + '.' + testbed_name, hostname=hostname).get_hrn()
  10
  11
  12 def hostname_to_urn(auth, testbed_name, hostname):
  13     return DummyXrn(auth=auth + '.' + testbed_name, hostname=hostname).get_urn()
  14
  15
  16 def slicename_to_hrn(auth_hrn, slicename):
  17     return DummyXrn(auth=auth_hrn, slicename=slicename).get_hrn()
  18
  19
  20 def email_to_hrn(auth_hrn, email):
  21     return DummyXrn(auth=auth_hrn, email=email).get_hrn()
  22
  23
  24 def hrn_to_dummy_slicename(hrn):
  25     return DummyXrn(xrn=hrn, type='slice').dummy_slicename()
  26
  27
  28 def hrn_to_dummy_authname(hrn):
  29     return DummyXrn(xrn=hrn, type='any').dummy_authname()
  30
  31
  32 def xrn_to_hostname(hrn):
  33     return Xrn.unescape(PlXrn(xrn=hrn, type='node').get_leaf())
  34
  35
  36 class DummyXrn (Xrn):
  37
  38     @staticmethod
  39     def site_hrn(auth, testbed_name):
  40         return '.'.join([auth, testbed_name])
  41
  42     def __init__(self, auth=None, hostname=None, slicename=None, email=None, interface=None, **kwargs):
  43         # def hostname_to_hrn(auth_hrn, login_base, hostname):
  44         if hostname is not None:
  45             self.type = 'node'
  46             # keep only the first part of the DNS name
  47             #self.hrn='.'.join( [auth,hostname.split(".")[0] ] )
  48             # escape the '.' in the hostname
  49             self.hrn = '.'.join([auth, Xrn.escape(hostname)])
  50             self.hrn_to_urn()
  51         # def slicename_to_hrn(auth_hrn, slicename):
  52         elif slicename is not None:
  53             self.type = 'slice'
  54             # split at the first _
  55             parts = slicename.split("_", 1)
  56             self.hrn = ".".join([auth] + parts)
  57             self.hrn_to_urn()
  58         # def email_to_hrn(auth_hrn, email):
  59         elif email is not None:
  60             self.type = 'person'
  61             # keep only the part before '@' and replace special chars into _
  62             self.hrn = '.'.join(
  63                 [auth, email.split('@')[0].replace(".", "_").replace("+", "_")])
  64             self.hrn_to_urn()
  65         elif interface is not None:
  66             self.type = 'interface'
  67             self.hrn = auth + '.' + interface
  68             self.hrn_to_urn()
  69         else:
  70             Xrn.__init__(self, **kwargs)
  71
  72     # def hrn_to_pl_slicename(hrn):
  73     def dummy_slicename(self):
  74         self._normalize()
  75         leaf = self.leaf
  76         sliver_id_parts = leaf.split(':')
  77         name = sliver_id_parts[0]
  78         name = re.sub('[^a-zA-Z0-9_]', '', name)
  79         return name
  80
  81     # def hrn_to_pl_authname(hrn):
  82     def dummy_authname(self):
  83         self._normalize()
  84         return self.authority[-1]
  85
  86     def interface_name(self):
  87         self._normalize()
  88         return self.leaf
  89
  90     def dummy_login_base(self):
  91         self._normalize()
  92         if self.type and self.type.startswith('authority'):
  93             base = self.leaf
  94         else:
  95             base = self.authority[-1]
  96
  97         # Fix up names of GENI Federates
  98         base = base.lower()
  99         base = re.sub('\\\[^a-zA-Z0-9]', '', base)
 100
 101         if len(base) > 20:
 102             base = base[len(base) - 20:]
 103
 104         return base