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 def channel_to_hrn (auth, login_base, channel):
  27     return NitosXrn(auth=auth+'.'+login_base, channel=channel).get_hrn()
  28 def channel_to_urn (auth, login_base, channel):
  29     return NitosXrn(auth=auth+'.'+login_base, channel=channel).get_urn()
  30 def xrn_to_channel(hrn):
  31     return Xrn.unescape(NitosXrn(xrn=hrn, type='channel').get_leaf())
  32
  33 class NitosXrn (Xrn):
  34
  35     @staticmethod
  36     def site_hrn (auth, login_base):
  37         return '.'.join([auth,login_base])
  38
  39     def __init__ (self, auth=None, hostname=None, slicename=None, email=None, interface=None, channel=None, **kwargs):
  40         #def hostname_to_hrn(auth_hrn, login_base, hostname):
  41         if hostname is not None:
  42             self.type='node'
  43             # keep only the first part of the DNS name
  44             #self.hrn='.'.join( [auth,hostname.split(".")[0] ] )
  45             # escape the '.' in the hostname
  46             self.hrn='.'.join( [auth,Xrn.escape(hostname)] )
  47             self.hrn_to_urn()
  48         #def slicename_to_hrn(auth_hrn, slicename):
  49         elif slicename is not None:
  50             self.type='slice'
  51             self.hrn = ".".join([auth] + [slicename.replace(".", "_")])
  52             self.hrn_to_urn()
  53         #def email_to_hrn(auth_hrn, email):
  54         elif email is not None:
  55             self.type='person'
  56             # keep only the part before '@' and replace special chars into _
  57             self.hrn='.'.join([auth,email.split('@')[0].replace(".", "_").replace("+", "_")])
  58             self.hrn_to_urn()
  59         elif interface is not None:
  60             self.type = 'interface'
  61             self.hrn = auth + '.' + interface
  62             self.hrn_to_urn()
  63         elif channel is not None:
  64             self.type='channel'
  65             self.hrn=".".join([auth] + [channel])
  66             self.hrn_to_urn()
  67         else:
  68             Xrn.__init__ (self,**kwargs)
  69
  70     #def hrn_to_pl_slicename(hrn):
  71     def nitos_slicename (self):
  72         self._normalize()
  73         leaf = self.leaf
  74         sliver_id_parts = leaf.split(':')
  75         name = sliver_id_parts[0]
  76         name = re.sub('[^a-zA-Z0-9_]', '', name)
  77         #return self.nitos_login_base() + '_' + name
  78         return name
  79
  80     #def hrn_to_pl_authname(hrn):
  81     def nitos_authname (self):
  82         self._normalize()
  83         return self.authority[-1]
  84
  85     def interface_name(self):
  86         self._normalize()
  87         return self.leaf
  88
  89     def nitos_login_base (self):
  90         self._normalize()
  91         if self.type and self.type.startswith('authority'):
  92             base = self.leaf
  93         else:
  94             base = self.authority[-1]
  95
  96         # Fix up names of GENI Federates
  97         base = base.lower()
  98         base = re.sub('\\\[^a-zA-Z0-9]', '', base)
  99
 100         if len(base) > 20:
 101             base = base[len(base)-20:]
 102
 103         return base
 104
 105
 106 if __name__ == '__main__':
 107
 108         #nitosxrn = NitosXrn(auth="omf.nitos",slicename="aminesl")
 109         #slice_hrn = nitosxrn.get_hrn()
 110         #slice_name = NitosXrn(xrn="omf.nitos.aminesl",type='slice').nitos_slicename()
 111         slicename = "giorgos_n"
 112         hrn = slicename_to_hrn("pla", "nitos", slicename)
 113         print hrn