| 1 | #!/usr/bin/env python |
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| 2 | |
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| 3 | """ |
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| 4 | See README in this directory for the semantics of the example. This file |
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| 5 | constructs the credentials described and puts copies into this directory |
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| 6 | |
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| 7 | cmd1:env keystore=`pwd` ./attr.py |
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| 8 | """ |
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| 9 | import os |
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| 10 | import ABAC |
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| 11 | |
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| 12 | ctxt = ABAC.Context() |
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| 13 | print "ABAC version %s" % ctxt.version() |
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| 14 | |
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| 15 | # retrieve principals' keyid value from local credential files |
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| 16 | acmeID=ABAC.ID("Acme_ID.pem"); |
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| 17 | acmeID.id_load_privkey_file("Acme_private.pem"); |
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| 18 | ctxt.load_id(acmeID) |
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| 19 | acme=acmeID.id_keyid() |
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| 20 | |
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| 21 | coyoteID=ABAC.ID("Coyote_ID.pem"); |
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| 22 | coyoteID.id_load_privkey_file("Coyote_private.pem"); |
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| 23 | ctxt.load_id(coyoteID) |
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| 24 | coyote=coyoteID.id_keyid() |
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| 25 | |
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| 26 | ################################################ |
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| 27 | # Credential 1, only preferred_customer of Acme can buy_rockets |
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| 28 | #[keyid:Acme].role:buy_rockets <- [keyid:Acme].role:preferred_customer |
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| 29 | head = ABAC.Role(acme,"buy_rockets") |
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| 30 | tail = ABAC.Role(acme,"preferred_customer") |
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| 31 | |
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| 32 | # compose the attribute of a basic rt0 role rule |
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| 33 | attr=ABAC.Attribute(head, 1800) |
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| 34 | attr.attribute_add_tail(tail) |
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| 35 | |
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| 36 | # finalize the policy |
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| 37 | attr.attribute_bake() |
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| 38 | |
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| 39 | # create a policy file at the file system |
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| 40 | attr.attribute_write_cert("Acme_buy_rockets__Acme_preferred_customer_attr.der") |
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| 41 | |
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| 42 | # load the policy into current context by with the newly created policy file |
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| 43 | ctxt.load_attribute_file("Acme_buy_rockets__Acme_preferred_customer_attr.der") |
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| 44 | print attr.string() |
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| 45 | print attr.typed_string() |
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| 46 | print "\n" |
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| 47 | |
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| 48 | ################################################ |
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| 49 | # Credential 2, only worst_lucked of Acme can buy_rockets |
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| 50 | #[keyid:Acme].role:buy_rockets <- [keyid:Acme].role:worst_lucked |
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| 51 | head = ABAC.Role(acme,"buy_rockets") |
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| 52 | tail = ABAC.Role(acme,"worst_lucked") |
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| 53 | |
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| 54 | # compose the attribute of a basic rt0 role rule |
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| 55 | attr=ABAC.Attribute(head, 1800) |
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| 56 | attr.attribute_add_tail(tail) |
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| 57 | |
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| 58 | # finalize the policy |
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| 59 | attr.attribute_bake() |
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| 60 | |
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| 61 | # create a policy file at the file system |
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| 62 | attr.attribute_write_cert("Acme_buy_rockets__Acme_worst_lucked_attr.der") |
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| 63 | |
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| 64 | # load the policy into current context by with the newly created policy file |
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| 65 | ctxt.load_attribute_file("Acme_buy_rockets__Acme_worst_lucked_attr.der") |
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| 66 | print attr.string() |
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| 67 | print attr.typed_string() |
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| 68 | print "\n" |
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| 69 | |
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| 70 | ################################################# |
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| 71 | # Credential 3 |
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| 72 | #[keyid:Acme].role:preferred_customer <- [keyid:Coyote] |
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| 73 | head = ABAC.Role(acme,"preferred_customer") |
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| 74 | tail = ABAC.Role(coyote) |
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| 75 | attr=ABAC.Attribute(head, 1800) |
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| 76 | attr.attribute_add_tail(tail) |
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| 77 | attr.attribute_bake() |
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| 78 | attr.attribute_write_cert("Acme_preferred_customer__Coyote_attr.der") |
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| 79 | ctxt.load_attribute_file("Acme_preferred_customer__Coyote_attr.der") |
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| 80 | print attr.string() |
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| 81 | print attr.typed_string() |
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| 82 | print "\n" |
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| 83 | |
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| 84 | ################################################# |
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| 85 | # Credential 4 |
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| 86 | #[keyid:Acme].role:worst_lucked <- [keyid:Coyote] |
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| 87 | head = ABAC.Role(acme,"worst_lucked") |
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| 88 | tail = ABAC.Role(coyote) |
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| 89 | attr=ABAC.Attribute(head, 1800) |
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| 90 | attr.attribute_add_tail(tail) |
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| 91 | attr.attribute_bake() |
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| 92 | attr.attribute_write_cert("Acme_worst_lucked__Coyote_attr.der") |
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| 93 | ctxt.load_attribute_file("Acme_worst_lucked__Coyote_attr.der") |
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| 94 | print attr.string() |
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| 95 | print attr.typed_string() |
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| 96 | print "\n" |
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| 97 | |
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