permission.backends.role_backend: 61 total statements, 61.4% covered

Generated: Thu 2012-03-01 14:22 CST

Source file: /home/alisue/Dropbox/Codes/django-permission/permission/backends/role_backend.py

Stats: 35 executed, 22 missed, 4 excluded, 50 ignored

1. # vim: set fileencoding=utf-8 :
2. """
3. Authentication backends for role system
6. AUTHOR:
7. lambdalisue[Ali su ae] (lambdalisue@hashnote.net)
9. License:
10. The MIT License (MIT)
12. Copyright (c) 2012 Alisue allright reserved.
14. Permission is hereby granted, free of charge, to any person obtaining a copy
15. of this software and associated documentation files (the "Software"), to
16. deal in the Software without restriction, including without limitation the
17. rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
18. sell copies of the Software, and to permit persons to whom the Software is
19. furnished to do so, subject to the following conditions:
21. The above copyright notice and this permission notice shall be included in
22. all copies or substantial portions of the Software.
24. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
25. IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26. FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
27. AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
28. LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
29. FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
30. IN THE SOFTWARE.
32. """
33. from __future__ import with_statement
35. from permission.models import Role
37. __all__ = ('RoleBackend',)
40. class RoleBackend(object):
41. """Authentication backend for role system"""
42. supports_object_permissions = False
43. supports_anonymous_user = False
44. supports_inactive_user = True
46. def authenticate(self, username, password):
47. """This backend is only for checking permission"""
48. return None
50. def get_all_roles(self, user_obj):
51. return Role.objects.filter_by_user(user_obj)
53. def get_all_permissions(self, user_obj, obj=None):
54. if obj is not None:
55. # do not return any permission for obj
56. return set()
57. return Role.objects.get_all_permissions_of_user(user_obj)
59. def has_role(self, user_obj, role):
60. if user_obj.is_anonymous() or not user_obj.is_active:
61. return False
62. return self.get_all_roles(user_obj).filter(codename=role).exists()
64. def has_perm(self, user_obj, perm, obj=None):
65. if user_obj.is_anonymous() or not user_obj.is_active:
66. return False
67. permissions = self.get_all_permissions(user_obj, obj)
68. permissions = set(["%s.%s" % (p.content_type.app_label, p.codename) for p in permissions])
69. if perm in permissions:
70. return True
71. # do not touch this permission
72. return False
74. def has_module_perms(self, user_obj, app_label):
75. if not user_obj.is_active:
76. return False
77. permissions = self.get_all_permissions(user_obj)
78. permissions = set(["%s.%s" % (p.content_type.app_label, p.codename) for p in permissions])
79. for perm in permissions:
80. if perm[:perm.index('.')] == app_label:
81. return True
82. return False
84. #
85. # Extend User class
86. #
87. from django.contrib import auth
88. from django.contrib.auth.models import User
89. def _user_has_role(user, role, obj):
90. anon = user.is_anonymous()
91. active = user.is_active
92. for backend in auth.get_backends():
93. if anon or active or backend.supports_inactive_user:
94. if hasattr(backend, 'has_role'):
95. if obj is not None:
96. if backend.has_role(user, role, obj):
97. return True
98. else:
99. if backend.has_role(user, role):
100. return True
101. return False
102. def _user_get_all_roles(user):
103. anon = user.is_anonymous()
104. active = user.is_active
105. for backend in auth.get_backends():
106. if anon or active or backend.supports_inactive_user:
107. if hasattr(backend, 'get_all_roles'):
108. return backend.get_all_roles(user)
109. return None
110. User.has_role = _user_has_role
111. User.roles = property(_user_get_all_roles)