#!/usr/bin/env python

"""
  to test with python

cmd1:env keystore=`pwd` ./attr.py 
"""

import os
import ABAC

keystore=os.environ["keystore"]

ctxt = ABAC.Context()
print "ABAC version %s" % ctxt.version()

ctxt.load_directory(keystore)

out = ctxt.context_principals()
print "...initial principal set..."
for x in out[1]:
    print "%s " % x.string()
print "\n" 

out = ctxt.context_credentials()
print "...initial policy attribute set..."
for c in out[1]:
    print "%s <- %s" % (c.head_string(), c.tail_string())
print "\n"

alphaID=ABAC.ID("Alpha_ID.pem")
alphaID.id_load_privkey_file("Alpha_private.pem");
alpha=alphaID.id_keyid()

bobID=ABAC.ID("Bob_ID.pem")
bobID.id_load_privkey_file("Bob_private.pem");
bob=bobID.id_keyid()

maryannID=ABAC.ID("Maryann_ID.pem")
maryannID.id_load_privkey_file("Maryann_private.pem")
maryann=maryannID.id_keyid()

joeID=ABAC.ID("Joe_ID.pem")
joeID.id_load_privkey_file("Joe_private.pem")
joe=joeID.id_keyid()


################################################
# [keyid:alpha].role:read([urn:?F])<-
#    [keyid:alpha].role:managerOf([principal:?E[keyid:alpha].role:ownerOf([urn:?F])]
param=ABAC.DataTerm("urn", "F")
head = ABAC.Role(alpha,"read")
head.role_add_data_term(param)
param=ABAC.DataTerm("urn", "F")
condoset=ABAC.Role(alpha,"ownerOf")
condoset.role_add_data_term(param)
cond=ABAC.Constraint(condoset)
param=ABAC.DataTerm("principal", "E", cond)
tail = ABAC.Role(alpha,"managerOf")
tail.role_add_data_term(param)
attr=ABAC.Attribute(head, 1800)
attr.attribute_add_tail(tail)
attr.attribute_bake()
attr.attribute_write_cert("Alpha_read_qF__alpha_managerof_qE_attr.der")
ctxt.load_attribute_file("Alpha_read_qF__alpha_managerof_qE_attr.der")
print attr.string() 
print attr.typed_string()
print "\n"

#################################################
# [keyid:Alpha].role:managerOf([Keyid:Joe]) <- [keyid:Bob]
#
param=ABAC.DataTerm(joeID)
role = ABAC.Role(alpha,"managerOf")
role.role_add_data_term(param)
tail = ABAC.Role(bob)
attr=ABAC.Attribute(role, 1800)
attr.attribute_add_tail(tail)
attr.attribute_bake()
attr.attribute_write_cert("Alpha_managerof_Joe__Bob_attr.der")
ctxt.load_attribute_file("Alpha_managerof_Joe__Bob_attr.der")
print attr.string() 
print attr.typed_string()
print "\n"

#################################################
#[keyid:Alpha].role:ownerOf([urn:'file://fileA']) <- [keyid:Joe]
#
param=ABAC.DataTerm("urn", "'file://fileA'")
role = ABAC.Role(alpha,"ownerOf")
role.role_add_data_term(param)
tail = ABAC.Role(joe)
attr=ABAC.Attribute(role, 1800)
attr.attribute_add_tail(tail)
attr.attribute_bake()
attr.attribute_write_cert("Alpha_ownerof_fileA__Joe_attr.der")
ctxt.load_attribute_file("Alpha_ownerof_fileA__Joe_attr.der")
print attr.string() 
print attr.typed_string()
print "\n"


ctxt.dump_yap_db()
##