sfa/nitos/nitosxrn.py

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