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 | |
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10 | import os |
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11 | import ABAC |
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12 | |
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13 | ctxt = ABAC.Context() |
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14 | print "ABAC version %s" % ctxt.version() |
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15 | |
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16 | # Keystore is the directory containing the principal credentials. |
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17 | # Load existing principals and/or policy credentials |
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18 | if (os.environ.has_key("keystore")) : |
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19 | keystore=os.environ["keystore"] |
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20 | ctxt.load_directory(keystore) |
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21 | else: |
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22 | print("keystore is not set...") |
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23 | exit(1) |
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24 | |
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25 | out = ctxt.context_principals() |
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26 | print "...initial principal set..." |
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27 | for x in out[1]: |
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28 | print "%s " % x.string() |
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29 | print "\n" |
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30 | |
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31 | out = ctxt.context_credentials() |
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32 | print "...initial policy attribute set..." |
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33 | for c in out[1]: |
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34 | print "%s <- %s" % (c.head_string(), c.tail_string()) |
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35 | print "\n" |
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36 | |
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37 | # retrieve principals' keyid value from local credential files |
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38 | acmeID=ABAC.ID("Acme_ID.pem") |
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39 | acmeID.id_load_privkey_file("Acme_private.pem"); |
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40 | acme=acmeID.id_keyid() |
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41 | |
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42 | coyoteID=ABAC.ID("Coyote_ID.pem") |
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43 | coyoteID.id_load_privkey_file("Coyote_private.pem"); |
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44 | coyote=coyoteID.id_keyid() |
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45 | |
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46 | roadrunnerID=ABAC.ID("Roadrunner_ID.pem") |
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47 | roadrunnerID.id_load_privkey_file("Roadrunner_private.pem"); |
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48 | roadrunner=roadrunnerID.id_keyid() |
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49 | |
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50 | jackrabbitID=ABAC.ID("Jackrabbit_ID.pem") |
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51 | jackrabbitID.id_load_privkey_file("Jackrabbit_private.pem"); |
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52 | jackrabbit=jackrabbitID.id_keyid() |
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53 | |
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54 | ################################################ |
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55 | # Credential 1 |
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56 | # [keyid:Acme].role:preferred_customer <- [keyid:Acme].role:friendof([keyid:Roadrunner]) |
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57 | head = ABAC.Role(acme,"preferred_customer") |
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58 | param=ABAC.DataTerm(roadrunnerID) |
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59 | tail = ABAC.Role(acme,"friendof") |
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60 | |
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61 | # adding parameter to friendOf role |
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62 | tail.role_add_data_term(param) |
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63 | |
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64 | # link the head and tail parts of attribute together |
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65 | attr=ABAC.Attribute(head, 1800) |
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66 | attr.attribute_add_tail(tail) |
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67 | |
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68 | # finalize the attribute |
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69 | attr.attribute_bake() |
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70 | |
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71 | # write to file system to be accessible later on |
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72 | attr.attribute_write_cert("Acme_preferred_customer__Acme_friendof_Roadrunner_attr.der") |
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73 | |
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74 | # load the credential just made into the context directly |
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75 | # (bypass the external credential file) |
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76 | ctxt.load_attribute(attr) |
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77 | print attr.string() |
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78 | print attr.typed_string() |
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79 | print "\n" |
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80 | |
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81 | ################################################# |
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82 | # Credential 2 |
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83 | # [keyid:Acme].role:prefered_customer <- [keyid:Coyote] |
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84 | head = ABAC.Role(acme,"preferred_customer") |
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85 | tail = ABAC.Role(coyote) |
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86 | attr=ABAC.Attribute(head, 1800) |
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87 | attr.attribute_add_tail(tail) |
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88 | attr.attribute_bake() |
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89 | attr.attribute_write_cert("Acme_preferred_customer__Coyote_attr.der") |
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90 | ctxt.load_attribute(attr) |
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91 | print attr.string() |
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92 | print attr.typed_string() |
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93 | print "\n" |
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94 | |
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95 | ################################################# |
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96 | # Credential 3 |
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97 | # [keyid:Acme].role:friendof([keyid:Roadrunner]) <- [keyid:Jackrabbit] |
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98 | param=ABAC.DataTerm(roadrunnerID) |
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99 | head = ABAC.Role(acme,"friendof") |
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100 | head.role_add_data_term(param) |
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101 | tail = ABAC.Role(jackrabbit) |
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102 | attr=ABAC.Attribute(head, 1800) |
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103 | attr.attribute_add_tail(tail) |
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104 | attr.attribute_bake() |
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105 | attr.attribute_write_cert("Acme_friendof_Roadrunner__Jackrabbit_attr.der") |
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106 | ctxt.load_attribute(attr) |
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107 | print attr.string() |
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108 | print attr.typed_string() |
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109 | print "\n" |
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110 | |
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