332 lines
14 KiB
Python
332 lines
14 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_log import versionutils
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from oslo_policy import policy
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from keystone.common.policies import base
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# Two of the three portions of this check string are specific to domain
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# readers. The first catches domain readers who are checking or listing grants
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# for users. The second does the same for groups. We have to overload the check
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# string to handle both cases because `identity:check_grant` is used to protect
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# both user and group grant APIs. If the `identity:check_grant` policy is every
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# broken apart, we can write specific check strings that are tailored to either
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# users or groups (e.g., `identity:check_group_grant` or
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# `identity:check_user_grant`) and prevent overloading like this.
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DOMAIN_MATCHES_USER_DOMAIN = 'domain_id:%(target.user.domain_id)s'
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DOMAIN_MATCHES_GROUP_DOMAIN = 'domain_id:%(target.group.domain_id)s'
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DOMAIN_MATCHES_PROJECT_DOMAIN = 'domain_id:%(target.project.domain_id)s'
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DOMAIN_MATCHES_TARGET_DOMAIN = 'domain_id:%(target.domain.id)s'
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DOMAIN_MATCHES_ROLE = 'domain_id:%(target.role.domain_id)s or None:%(target.role.domain_id)s'
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GRANTS_DOMAIN_READER = (
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'(role:reader and ' + DOMAIN_MATCHES_USER_DOMAIN + ' and ' + DOMAIN_MATCHES_PROJECT_DOMAIN + ') or '
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'(role:reader and ' + DOMAIN_MATCHES_USER_DOMAIN + ' and ' + DOMAIN_MATCHES_TARGET_DOMAIN + ') or '
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'(role:reader and ' + DOMAIN_MATCHES_GROUP_DOMAIN + ' and ' + DOMAIN_MATCHES_PROJECT_DOMAIN + ') or '
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'(role:reader and ' + DOMAIN_MATCHES_GROUP_DOMAIN + ' and ' + DOMAIN_MATCHES_TARGET_DOMAIN + ')'
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)
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SYSTEM_READER_OR_DOMAIN_READER = (
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'(' + base.SYSTEM_READER + ') or '
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'(' + GRANTS_DOMAIN_READER + ') and '
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'(' + DOMAIN_MATCHES_ROLE + ')'
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)
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SYSTEM_READER_OR_DOMAIN_READER_LIST = (
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'(' + base.SYSTEM_READER + ') or ' + GRANTS_DOMAIN_READER
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)
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GRANTS_DOMAIN_ADMIN = (
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'(role:admin and ' + DOMAIN_MATCHES_USER_DOMAIN + ' and ' + DOMAIN_MATCHES_PROJECT_DOMAIN + ') or '
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'(role:admin and ' + DOMAIN_MATCHES_USER_DOMAIN + ' and ' + DOMAIN_MATCHES_TARGET_DOMAIN + ') or '
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'(role:admin and ' + DOMAIN_MATCHES_GROUP_DOMAIN + ' and ' + DOMAIN_MATCHES_PROJECT_DOMAIN + ') or '
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'(role:admin and ' + DOMAIN_MATCHES_GROUP_DOMAIN + ' and ' + DOMAIN_MATCHES_TARGET_DOMAIN + ')'
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)
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SYSTEM_ADMIN_OR_DOMAIN_ADMIN = (
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'(' + base.SYSTEM_ADMIN + ') or '
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'(' + GRANTS_DOMAIN_ADMIN + ') and '
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'(' + DOMAIN_MATCHES_ROLE + ')'
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)
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deprecated_check_system_grant_for_user = policy.DeprecatedRule(
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name=base.IDENTITY % 'check_system_grant_for_user',
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check_str=base.RULE_ADMIN_REQUIRED
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)
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deprecated_list_system_grants_for_user = policy.DeprecatedRule(
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name=base.IDENTITY % 'list_system_grants_for_user',
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check_str=base.RULE_ADMIN_REQUIRED
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)
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deprecated_create_system_grant_for_user = policy.DeprecatedRule(
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name=base.IDENTITY % 'create_system_grant_for_user',
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check_str=base.RULE_ADMIN_REQUIRED
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)
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deprecated_revoke_system_grant_for_user = policy.DeprecatedRule(
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name=base.IDENTITY % 'revoke_system_grant_for_user',
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check_str=base.RULE_ADMIN_REQUIRED
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)
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deprecated_check_system_grant_for_group = policy.DeprecatedRule(
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name=base.IDENTITY % 'check_system_grant_for_group',
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check_str=base.RULE_ADMIN_REQUIRED
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)
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deprecated_list_system_grants_for_group = policy.DeprecatedRule(
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name=base.IDENTITY % 'list_system_grants_for_group',
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check_str=base.RULE_ADMIN_REQUIRED
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)
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deprecated_create_system_grant_for_group = policy.DeprecatedRule(
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name=base.IDENTITY % 'create_system_grant_for_group',
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check_str=base.RULE_ADMIN_REQUIRED
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)
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deprecated_revoke_system_grant_for_group = policy.DeprecatedRule(
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name=base.IDENTITY % 'revoke_system_grant_for_group',
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check_str=base.RULE_ADMIN_REQUIRED
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)
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deprecated_list_grants = policy.DeprecatedRule(
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name=base.IDENTITY % 'list_grants', check_str=base.RULE_ADMIN_REQUIRED
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)
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deprecated_check_grant = policy.DeprecatedRule(
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name=base.IDENTITY % 'check_grant', check_str=base.RULE_ADMIN_REQUIRED
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)
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deprecated_create_grant = policy.DeprecatedRule(
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name=base.IDENTITY % 'create_grant', check_str=base.RULE_ADMIN_REQUIRED
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)
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deprecated_revoke_grant = policy.DeprecatedRule(
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name=base.IDENTITY % 'revoke_grant', check_str=base.RULE_ADMIN_REQUIRED
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)
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DEPRECATED_REASON = (
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"The assignment API is now aware of system scope and default roles."
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)
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resource_paths = [
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'/projects/{project_id}/users/{user_id}/roles/{role_id}',
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'/projects/{project_id}/groups/{group_id}/roles/{role_id}',
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'/domains/{domain_id}/users/{user_id}/roles/{role_id}',
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'/domains/{domain_id}/groups/{group_id}/roles/{role_id}',
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]
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resource_paths += ['/OS-INHERIT' + path + '/inherited_to_projects'
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for path in resource_paths]
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collection_paths = [
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'/projects/{project_id}/users/{user_id}/roles',
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'/projects/{project_id}/groups/{group_id}/roles',
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'/domains/{domain_id}/users/{user_id}/roles',
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'/domains/{domain_id}/groups/{group_id}/roles'
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]
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inherited_collection_paths = [
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('/OS-INHERIT/domains/{domain_id}/groups/{group_id}/roles/'
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'inherited_to_projects'),
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('/OS-INHERIT/domains/{domain_id}/users/{user_id}/roles/'
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'inherited_to_projects')
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]
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def list_operations(paths, methods):
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return [{'path': '/v3' + path, 'method': method}
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for path in paths for method in methods]
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# NOTE(samueldmq): Unlike individual resource paths, collection
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# paths for the inherited grants do not contain a HEAD API
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list_grants_operations = (
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list_operations(collection_paths, ['GET', 'HEAD']) +
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list_operations(inherited_collection_paths, ['GET']))
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grant_policies = [
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'check_grant',
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check_str=SYSTEM_READER_OR_DOMAIN_READER,
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scope_types=['system', 'domain'],
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description=('Check a role grant between a target and an actor. A '
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'target can be either a domain or a project. An actor '
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'can be either a user or a group. These terms also apply '
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'to the OS-INHERIT APIs, where grants on the target '
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'are inherited to all projects in the subtree, if '
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'applicable.'),
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operations=list_operations(resource_paths, ['HEAD', 'GET']),
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deprecated_rule=deprecated_check_grant,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN),
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'list_grants',
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check_str=SYSTEM_READER_OR_DOMAIN_READER_LIST,
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scope_types=['system', 'domain'],
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description=('List roles granted to an actor on a target. A target '
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'can be either a domain or a project. An actor can be '
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'either a user or a group. For the OS-INHERIT APIs, it '
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'is possible to list inherited role grants for actors on '
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'domains, where grants are inherited to all projects '
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'in the specified domain.'),
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operations=list_grants_operations,
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deprecated_rule=deprecated_list_grants,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN),
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'create_grant',
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check_str=SYSTEM_ADMIN_OR_DOMAIN_ADMIN,
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scope_types=['system', 'domain'],
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description=('Create a role grant between a target and an actor. A '
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'target can be either a domain or a project. An actor '
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'can be either a user or a group. These terms also apply '
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'to the OS-INHERIT APIs, where grants on the target '
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'are inherited to all projects in the subtree, if '
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'applicable.'),
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operations=list_operations(resource_paths, ['PUT']),
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deprecated_rule=deprecated_create_grant,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN),
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'revoke_grant',
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check_str=SYSTEM_ADMIN_OR_DOMAIN_ADMIN,
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scope_types=['system', 'domain'],
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description=('Revoke a role grant between a target and an actor. A '
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'target can be either a domain or a project. An actor '
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'can be either a user or a group. These terms also apply '
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'to the OS-INHERIT APIs, where grants on the target '
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'are inherited to all projects in the subtree, if '
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'applicable. In that case, revoking the role grant in '
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'the target would remove the logical effect of '
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'inheriting it to the target\'s projects subtree.'),
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operations=list_operations(resource_paths, ['DELETE']),
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deprecated_rule=deprecated_revoke_grant,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN),
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'list_system_grants_for_user',
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check_str=base.SYSTEM_READER,
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scope_types=['system'],
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description='List all grants a specific user has on the system.',
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operations=[
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{
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'path': '/v3/system/users/{user_id}/roles',
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'method': ['HEAD', 'GET']
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}
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],
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deprecated_rule=deprecated_list_system_grants_for_user,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN
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),
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'check_system_grant_for_user',
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check_str=base.SYSTEM_READER,
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scope_types=['system'],
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description='Check if a user has a role on the system.',
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operations=[
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{
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'path': '/v3/system/users/{user_id}/roles/{role_id}',
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'method': ['HEAD', 'GET']
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}
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],
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deprecated_rule=deprecated_check_system_grant_for_user,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN
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),
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'create_system_grant_for_user',
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check_str=base.SYSTEM_ADMIN,
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scope_types=['system'],
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description='Grant a user a role on the system.',
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operations=[
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{
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'path': '/v3/system/users/{user_id}/roles/{role_id}',
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'method': ['PUT']
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}
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],
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deprecated_rule=deprecated_create_system_grant_for_user,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN
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),
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'revoke_system_grant_for_user',
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check_str=base.SYSTEM_ADMIN,
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scope_types=['system'],
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description='Remove a role from a user on the system.',
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operations=[
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{
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'path': '/v3/system/users/{user_id}/roles/{role_id}',
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'method': ['DELETE']
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}
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],
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deprecated_rule=deprecated_revoke_system_grant_for_user,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN
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),
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'list_system_grants_for_group',
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check_str=base.SYSTEM_READER,
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scope_types=['system'],
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description='List all grants a specific group has on the system.',
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operations=[
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{
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'path': '/v3/system/groups/{group_id}/roles',
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'method': ['HEAD', 'GET']
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}
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],
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deprecated_rule=deprecated_list_system_grants_for_group,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN
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),
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'check_system_grant_for_group',
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check_str=base.SYSTEM_READER,
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scope_types=['system'],
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description='Check if a group has a role on the system.',
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operations=[
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{
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'path': '/v3/system/groups/{group_id}/roles/{role_id}',
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'method': ['HEAD', 'GET']
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}
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],
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deprecated_rule=deprecated_check_system_grant_for_group,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN
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),
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'create_system_grant_for_group',
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check_str=base.SYSTEM_ADMIN,
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scope_types=['system'],
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description='Grant a group a role on the system.',
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operations=[
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{
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'path': '/v3/system/groups/{group_id}/roles/{role_id}',
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'method': ['PUT']
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}
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],
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deprecated_rule=deprecated_create_system_grant_for_group,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN
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),
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policy.DocumentedRuleDefault(
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name=base.IDENTITY % 'revoke_system_grant_for_group',
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check_str=base.SYSTEM_ADMIN,
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scope_types=['system'],
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description='Remove a role from a group on the system.',
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operations=[
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{
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'path': '/v3/system/groups/{group_id}/roles/{role_id}',
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'method': ['DELETE']
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}
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],
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deprecated_rule=deprecated_revoke_system_grant_for_group,
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deprecated_reason=DEPRECATED_REASON,
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deprecated_since=versionutils.deprecated.STEIN
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)
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]
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def list_rules():
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return grant_policies
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