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
   9
  10 def hostname_to_hrn(auth, login_base, hostname):
  11     return NitosXrn(auth=auth + '.' + login_base, hostname=hostname).get_hrn()
  12
  13
  14 def hostname_to_urn(auth, login_base, hostname):
  15     return NitosXrn(auth=auth + '.' + login_base, hostname=hostname).get_urn()
  16
  17
  18 def slicename_to_hrn(auth_hrn, site_name, slicename):
  19     return NitosXrn(auth=auth_hrn + '.' + site_name, slicename=slicename).get_hrn()
  20 # hack to convert nitos user name to hrn
  21
  22
  23 def username_to_hrn(auth_hrn, site_name, username):
  24     return NitosXrn(auth=auth_hrn + '.' + site_name, slicename=username).get_hrn()
  25
  26
  27 def email_to_hrn(auth_hrn, email):
  28     return NitosXrn(auth=auth_hrn, email=email).get_hrn()
  29
  30
  31 def hrn_to_nitos_slicename(hrn):
  32     return NitosXrn(xrn=hrn, type='slice').nitos_slicename()
  33 # removed-dangerous - was used for non-slice objects
  34 # def hrn_to_nitos_login_base (hrn):
  35 #    return NitosXrn(xrn=hrn,type='slice').nitos_login_base()
  36
  37
  38 def hrn_to_nitos_authname(hrn):
  39     return NitosXrn(xrn=hrn, type='any').nitos_authname()
  40
  41
  42 def xrn_to_hostname(hrn):
  43     return Xrn.unescape(NitosXrn(xrn=hrn, type='node').get_leaf())
  44
  45
  46 def channel_to_hrn(auth, login_base, channel):
  47     return NitosXrn(auth=auth + '.' + login_base, channel=channel).get_hrn()
  48
  49
  50 def channel_to_urn(auth, login_base, channel):
  51     return NitosXrn(auth=auth + '.' + login_base, channel=channel).get_urn()
  52
  53
  54 def xrn_to_channel(hrn):
  55     return Xrn.unescape(NitosXrn(xrn=hrn, type='channel').get_leaf())
  56
  57
  58 class NitosXrn (Xrn):
  59
  60     @staticmethod
  61     def site_hrn(auth, login_base):
  62         return '.'.join([auth, login_base])
  63
  64     def __init__(self, auth=None, hostname=None, slicename=None, email=None, interface=None, channel=None, **kwargs):
  65         # def hostname_to_hrn(auth_hrn, login_base, hostname):
  66         if hostname is not None:
  67             self.type = 'node'
  68             # keep only the first part of the DNS name
  69             #self.hrn='.'.join( [auth,hostname.split(".")[0] ] )
  70             # escape the '.' in the hostname
  71             self.hrn = '.'.join([auth, Xrn.escape(hostname)])
  72             self.hrn_to_urn()
  73         # def slicename_to_hrn(auth_hrn, slicename):
  74         elif slicename is not None:
  75             self.type = 'slice'
  76             self.hrn = ".".join([auth] + [slicename.replace(".", "_")])
  77             self.hrn_to_urn()
  78         # def email_to_hrn(auth_hrn, email):
  79         elif email is not None:
  80             self.type = 'person'
  81             # keep only the part before '@' and replace special chars into _
  82             self.hrn = '.'.join(
  83                 [auth, email.split('@')[0].replace(".", "_").replace("+", "_")])
  84             self.hrn_to_urn()
  85         elif interface is not None:
  86             self.type = 'interface'
  87             self.hrn = auth + '.' + interface
  88             self.hrn_to_urn()
  89         elif channel is not None:
  90             self.type = 'channel'
  91             self.hrn = ".".join([auth] + [channel])
  92             self.hrn_to_urn()
  93         else:
  94             Xrn.__init__(self, **kwargs)
  95
  96     # def hrn_to_pl_slicename(hrn):
  97     def nitos_slicename(self):
  98         self._normalize()
  99         leaf = self.leaf
 100         sliver_id_parts = leaf.split(':')
 101         name = sliver_id_parts[0]
 102         name = re.sub('[^a-zA-Z0-9_]', '', name)
 103         # return self.nitos_login_base() + '_' + name
 104         return name
 105
 106     # def hrn_to_pl_authname(hrn):
 107     def nitos_authname(self):
 108         self._normalize()
 109         return self.authority[-1]
 110
 111     def interface_name(self):
 112         self._normalize()
 113         return self.leaf
 114
 115     def nitos_login_base(self):
 116         self._normalize()
 117         if self.type and self.type.startswith('authority'):
 118             base = self.leaf
 119         else:
 120             base = self.authority[-1]
 121
 122         # Fix up names of GENI Federates
 123         base = base.lower()
 124         base = re.sub('\\\[^a-zA-Z0-9]', '', base)
 125
 126         if len(base) > 20:
 127             base = base[len(base) - 20:]
 128
 129         return base
 130
 131
 132 if __name__ == '__main__':
 133
 134         #nitosxrn = NitosXrn(auth="omf.nitos",slicename="aminesl")
 135         #slice_hrn = nitosxrn.get_hrn()
 136         #slice_name = NitosXrn(xrn="omf.nitos.aminesl",type='slice').nitos_slicename()
 137     slicename = "giorgos_n"
 138     hrn = slicename_to_hrn("pla", "nitos", slicename)
 139     print(hrn)