151 lines
No EOL
7.8 KiB
Python
151 lines
No EOL
7.8 KiB
Python
import unittest
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from unittest.mock import patch
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from security.rbac_engine import RBACEngine, Role
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from cryptography.fernet import Fernet
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class TestRBACEngine(unittest.TestCase):
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def setUp(self):
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self.encryption_key = Fernet.generate_key()
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self.rbac = RBACEngine(self.encryption_key)
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self.rbac.assign_role("admin_user", Role.ADMIN)
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self.rbac.assign_role("dev_user", Role.DEVELOPER)
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self.rbac.assign_role("audit_user", Role.AUDITOR)
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def test_role_assignments(self):
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self.assertEqual(self.rbac.user_roles["admin_user"], Role.ADMIN)
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self.assertEqual(self.rbac.user_roles["dev_user"], Role.DEVELOPER)
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self.assertEqual(self.rbac.user_roles["audit_user"], Role.AUDITOR)
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def test_admin_permissions_correct(self):
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# Test allowed actions on the correct resource
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self.assertTrue(self.rbac.validate_permission("admin_user", "admin", "delegate"))
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self.assertTrue(self.rbac.validate_permission("admin_user", "admin", "audit"))
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self.assertTrue(self.rbac.validate_permission("admin_user", "admin", "configure"))
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# Test denied actions on the correct resource
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self.assertFalse(self.rbac.validate_permission("admin_user", "admin", "read"))
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# Test denied access to other resources
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self.assertFalse(self.rbac.validate_permission("admin_user", "tasks", "create"))
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self.assertFalse(self.rbac.validate_permission("admin_user", "logs", "read"))
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def test_developer_permissions(self):
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self.assertTrue(self.rbac.validate_permission("dev_user", "tasks", "create"))
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self.assertFalse(self.rbac.validate_permission("dev_user", "tasks", "delete"))
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self.assertFalse(self.rbac.validate_permission("dev_user", "logs", "read"))
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def test_auditor_permissions(self):
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self.assertTrue(self.rbac.validate_permission("audit_user", "logs", "read"))
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self.assertFalse(self.rbac.validate_permission("audit_user", "tasks", "create"))
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def test_encryption_decryption(self):
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test_payload = {"key": "value"}
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encrypted = self.rbac.encrypt_payload(test_payload)
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decrypted = self.rbac.decrypt_payload(encrypted)
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self.assertEqual(decrypted, test_payload)
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def test_unauthorized_access(self):
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self.assertFalse(self.rbac.validate_permission("unknown_user", "tasks", "read"))
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def test_pre_validation_hook_override(self):
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"""Test SYMPHONY-INTEGRATION-POINT: Pre-validation hook override"""
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# Create new instance to avoid test isolation issues
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test_rbac = RBACEngine(Fernet.generate_key())
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test_rbac.assign_role("hook_test_user", Role.ADMIN)
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# Override hook to block all access
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def block_all_hook(user, resource, action):
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return False
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test_rbac._trigger_pre_validation_hook = block_all_hook
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self.assertFalse(test_rbac.validate_permission("hook_test_user", "tasks", "read"))
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@patch('security.rbac_engine.logger')
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def test_audit_logging(self, mock_logger):
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"""Test SYMPHONY-INTEGRATION-POINT: Audit logging callback"""
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test_rbac = RBACEngine(Fernet.generate_key())
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test_rbac.assign_role("audit_test_user", Role.DEVELOPER)
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# Test denied access
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test_rbac.validate_permission("audit_test_user", "logs", "read")
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# Test allowed access
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test_rbac.validate_permission("audit_test_user", "tasks", "read")
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# Verify audit entries were logged
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self.assertEqual(mock_logger.info.call_count, 3) # Assign role + 2 validations
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# More specific checks on logged reasons
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log_messages = [call.args[0] for call in mock_logger.info.call_args_list]
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# Check assignment log
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self.assertTrue(any(f"Assigned {Role.DEVELOPER.value} role to audit_test_user" in msg for msg in log_messages))
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# Check denied log entry for resource mismatch
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denied_log_found = False
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for msg in log_messages:
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if "Audit entry:" in msg and "'allowed': False" in msg and "'reason': 'Resource mismatch'" in msg and "'user': 'audit_test_user'" in msg and "'resource': 'logs'" in msg:
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denied_log_found = True
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break
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self.assertTrue(denied_log_found, "Missing specific denied audit log (Resource mismatch)")
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# Check allowed log entry
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allowed_log_found = False
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for msg in log_messages:
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if "Audit entry:" in msg and "'allowed': True" in msg and "'reason': 'Access granted'" in msg and "'user': 'audit_test_user'" in msg and "'resource': 'tasks'" in msg:
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allowed_log_found = True
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break
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self.assertTrue(allowed_log_found, "Missing specific allowed audit log")
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def test_decrypt_payload_dict_bypass(self):
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"""Test that decrypt_payload bypasses decryption for dict input (test helper)."""
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test_payload = {"test": "data"}
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# Pass a dict directly, should return it unchanged without decryption error
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decrypted = self.rbac.decrypt_payload(test_payload)
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self.assertEqual(decrypted, test_payload)
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self.assertIs(decrypted, test_payload) # Check it's the same object
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# --- Placeholder for TLS-RBAC Integration Tests ---
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@patch('security.rbac_engine.RBACEngine._get_user_role_from_tls_cert') # Mock the cert extraction
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def test_permission_validation_with_tls_cert_role_admin(self, mock_get_role):
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"""Verify permission check uses role extracted from TLS cert context (Admin)."""
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# Mock the function to return ADMIN role for a specific cert context/user ID
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mock_get_role.return_value = Role.ADMIN
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# Simulate a TLS context object or relevant identifier
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mock_tls_context = {"subject_dn": "CN=admin_user,OU=AdminGroup"}
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# Use a user identifier derived from the cert context
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cert_user_id = "tls:CN=admin_user,OU=AdminGroup"
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# Assign role based on cert (though mock handles the lookup here)
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# In a real scenario, assign_role might not be needed if lookup is dynamic
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self.rbac.assign_role(cert_user_id, Role.ADMIN)
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# Test permissions expected for ADMIN role derived from TLS
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self.assertTrue(self.rbac.validate_permission(cert_user_id, "admin", "delegate", tls_context=mock_tls_context))
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self.assertFalse(self.rbac.validate_permission(cert_user_id, "tasks", "create", tls_context=mock_tls_context))
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mock_get_role.assert_called_once_with(mock_tls_context)
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@patch('security.rbac_engine.RBACEngine._get_user_role_from_tls_cert') # Mock the cert extraction
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def test_permission_validation_with_tls_cert_role_developer(self, mock_get_role):
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"""Verify permission check uses role extracted from TLS cert context (Developer)."""
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mock_get_role.return_value = Role.DEVELOPER
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mock_tls_context = {"subject_dn": "CN=dev_user,OU=DevGroup"}
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cert_user_id = "tls:CN=dev_user,OU=DevGroup"
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self.rbac.assign_role(cert_user_id, Role.DEVELOPER)
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self.assertTrue(self.rbac.validate_permission(cert_user_id, "tasks", "create", tls_context=mock_tls_context))
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self.assertFalse(self.rbac.validate_permission(cert_user_id, "admin", "delegate", tls_context=mock_tls_context))
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mock_get_role.assert_called_once_with(mock_tls_context)
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# Add tests for other roles (Auditor) and scenarios like missing/invalid certs,
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# revocation checks (if applicable before RBAC), and OU mapping logic.
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# The _get_user_role_from_tls_cert method itself would need separate unit tests.
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# Removed test_admin_cant_access_wildcard_resources and test_action_wildcards_rejected_in_definition
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# as they were based on incorrect assumptions and non-existent methods.
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# The core logic is tested by test_admin_permissions_correct and the validation implementation.
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if __name__ == '__main__':
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unittest.main() |