sfa/nitos/nitosxrn.py

   1 from __future__ import print_function
   2
   3 # specialized Xrn class for NITOS
   4 import re
   5 from sfa.util.xrn import Xrn
   6
   7 # temporary helper functions to use this module instead of namespace
   8 def hostname_to_hrn (auth, login_base, hostname):
   9     return NitosXrn(auth=auth+'.'+login_base,hostname=hostname).get_hrn()
  10 def hostname_to_urn(auth, login_base, hostname):
  11     return NitosXrn(auth=auth+'.'+login_base,hostname=hostname).get_urn()
  12 def slicename_to_hrn (auth_hrn,site_name,slicename):
  13     return NitosXrn(auth=auth_hrn+'.'+site_name,slicename=slicename).get_hrn()
  14 # hack to convert nitos user name to hrn
  15 def username_to_hrn (auth_hrn,site_name,username):
  16     return NitosXrn(auth=auth_hrn+'.'+site_name,slicename=username).get_hrn()
  17 def email_to_hrn (auth_hrn, email):
  18     return NitosXrn(auth=auth_hrn, email=email).get_hrn()
  19 def hrn_to_nitos_slicename (hrn):
  20     return NitosXrn(xrn=hrn,type='slice').nitos_slicename()
  21 # removed-dangerous - was used for non-slice objects
  22 #def hrn_to_nitos_login_base (hrn):
  23 #    return NitosXrn(xrn=hrn,type='slice').nitos_login_base()
  24 def hrn_to_nitos_authname (hrn):
  25     return NitosXrn(xrn=hrn,type='any').nitos_authname()
  26 def xrn_to_hostname(hrn):
  27     return Xrn.unescape(NitosXrn(xrn=hrn, type='node').get_leaf())
  28 def channel_to_hrn (auth, login_base, channel):
  29     return NitosXrn(auth=auth+'.'+login_base, channel=channel).get_hrn()
  30 def channel_to_urn (auth, login_base, channel):
  31     return NitosXrn(auth=auth+'.'+login_base, channel=channel).get_urn()
  32 def xrn_to_channel(hrn):
  33     return Xrn.unescape(NitosXrn(xrn=hrn, type='channel').get_leaf())
  34
  35 class NitosXrn (Xrn):
  36
  37     @staticmethod
  38     def site_hrn (auth, login_base):
  39         return '.'.join([auth,login_base])
  40
  41     def __init__ (self, auth=None, hostname=None, slicename=None, email=None, interface=None, channel=None, **kwargs):
  42         #def hostname_to_hrn(auth_hrn, login_base, hostname):
  43         if hostname is not None:
  44             self.type='node'
  45             # keep only the first part of the DNS name
  46             #self.hrn='.'.join( [auth,hostname.split(".")[0] ] )
  47             # escape the '.' in the hostname
  48             self.hrn='.'.join( [auth,Xrn.escape(hostname)] )
  49             self.hrn_to_urn()
  50         #def slicename_to_hrn(auth_hrn, slicename):
  51         elif slicename is not None:
  52             self.type='slice'
  53             self.hrn = ".".join([auth] + [slicename.replace(".", "_")])
  54             self.hrn_to_urn()
  55         #def email_to_hrn(auth_hrn, email):
  56         elif email is not None:
  57             self.type='person'
  58             # keep only the part before '@' and replace special chars into _
  59             self.hrn='.'.join([auth,email.split('@')[0].replace(".", "_").replace("+", "_")])
  60             self.hrn_to_urn()
  61         elif interface is not None:
  62             self.type = 'interface'
  63             self.hrn = auth + '.' + interface
  64             self.hrn_to_urn()
  65         elif channel is not None:
  66             self.type='channel'
  67             self.hrn=".".join([auth] + [channel])
  68             self.hrn_to_urn()
  69         else:
  70             Xrn.__init__ (self,**kwargs)
  71
  72     #def hrn_to_pl_slicename(hrn):
  73     def nitos_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 self.nitos_login_base() + '_' + name
  80         return name
  81
  82     #def hrn_to_pl_authname(hrn):
  83     def nitos_authname (self):
  84         self._normalize()
  85         return self.authority[-1]
  86
  87     def interface_name(self):
  88         self._normalize()
  89         return self.leaf
  90
  91     def nitos_login_base (self):
  92         self._normalize()
  93         if self.type and self.type.startswith('authority'):
  94             base = self.leaf
  95         else:
  96             base = self.authority[-1]
  97
  98         # Fix up names of GENI Federates
  99         base = base.lower()
 100         base = re.sub('\\\[^a-zA-Z0-9]', '', base)
 101
 102         if len(base) > 20:
 103             base = base[len(base)-20:]
 104
 105         return base
 106
 107
 108 if __name__ == '__main__':
 109
 110         #nitosxrn = NitosXrn(auth="omf.nitos",slicename="aminesl")
 111         #slice_hrn = nitosxrn.get_hrn()
 112         #slice_name = NitosXrn(xrn="omf.nitos.aminesl",type='slice').nitos_slicename()
 113         slicename = "giorgos_n"
 114         hrn = slicename_to_hrn("pla", "nitos", slicename)
 115         print(hrn)