193 lines
7.3 KiB
Python
193 lines
7.3 KiB
Python
import logging
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from flask.ext.principal import (identity_loaded, UserNeed, Permission,
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Identity, identity_changed)
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from flask.ext.login import current_user
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from collections import namedtuple
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from functools import partial
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from data import model
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from app import app
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logger = logging.getLogger(__name__)
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_ResourceNeed = namedtuple('resource', ['type', 'namespace', 'name', 'role'])
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_RepositoryNeed = partial(_ResourceNeed, 'repository')
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_OrganizationNeed = namedtuple('organization', ['orgname', 'role'])
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_TeamNeed = namedtuple('orgteam', ['orgname', 'teamname', 'role'])
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REPO_ROLES = [None, 'read', 'write', 'admin']
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TEAM_ROLES = [None, 'member', 'creator', 'admin']
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SCOPE_MAX_REPO_ROLES = {
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'repo:read': 'read',
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'repo:write': 'write',
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'repo:admin': 'admin',
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'repo:create': None,
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}
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SCOPE_MAX_TEAM_ROLES = {
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'repo:read': None,
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'repo:write': None,
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'repo:admin': None,
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'repo:create': 'creator',
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}
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class QuayDeferredPermissionUser(Identity):
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def __init__(self, id, auth_type=None, scopes=None):
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super(QuayDeferredPermissionUser, self).__init__(id, auth_type)
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self._permissions_loaded = False
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self._scope_set = scopes
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def _translate_role_for_scopes(self, cardinality, max_roles, role):
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if self._scope_set is None:
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return role
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max_for_scopes = max({cardinality.index(max_roles[scope]) for scope in self._scope_set})
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if max_for_scopes < cardinality.index(role):
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logger.debug('Translated permission %s -> %s', role, cardinality[max_for_scopes])
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return cardinality[max_for_scopes]
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else:
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return role
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def _team_role_for_scopes(self, role):
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return self._translate_role_for_scopes(TEAM_ROLES, SCOPE_MAX_TEAM_ROLES, role)
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def _repo_role_for_scopes(self, role):
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return self._translate_role_for_scopes(REPO_ROLES, SCOPE_MAX_REPO_ROLES, role)
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def can(self, permission):
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if not self._permissions_loaded:
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logger.debug('Loading user permissions after deferring.')
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user_object = model.get_user(self.id)
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# Add the user specific permissions, only for non-oauth permission
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if self._scope_set is None:
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user_grant = UserNeed(user_object.username)
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self.provides.add(user_grant)
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logger.debug('Add admin to user namespace: %s', user_object.username)
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# Every user is the admin of their own 'org'
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user_namespace = _OrganizationNeed(user_object.username, self._team_role_for_scopes('admin'))
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self.provides.add(user_namespace)
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# Add repository permissions
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for perm in model.get_all_user_permissions(user_object):
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grant = _RepositoryNeed(perm.repository.namespace, perm.repository.name,
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self._repo_role_for_scopes(perm.role.name))
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logger.debug('User added permission: {0}'.format(grant))
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self.provides.add(grant)
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# Add namespace permissions derived
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for team in model.get_org_wide_permissions(user_object):
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grant = _OrganizationNeed(team.organization.username,
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self._team_role_for_scopes(team.role.name))
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logger.debug('Organization team added permission: {0}'.format(grant))
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self.provides.add(grant)
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team_grant = _TeamNeed(team.organization.username, team.name,
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self._team_role_for_scopes(team.role.name))
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logger.debug('Team added permission: {0}'.format(team_grant))
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self.provides.add(team_grant)
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self._permissions_loaded = True
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return super(QuayDeferredPermissionUser, self).can(permission)
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class ModifyRepositoryPermission(Permission):
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def __init__(self, namespace, name):
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admin_need = _RepositoryNeed(namespace, name, 'admin')
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write_need = _RepositoryNeed(namespace, name, 'write')
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org_admin_need = _OrganizationNeed(namespace, 'admin')
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super(ModifyRepositoryPermission, self).__init__(admin_need, write_need,
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org_admin_need)
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class ReadRepositoryPermission(Permission):
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def __init__(self, namespace, name):
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admin_need = _RepositoryNeed(namespace, name, 'admin')
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write_need = _RepositoryNeed(namespace, name, 'write')
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read_need = _RepositoryNeed(namespace, name, 'read')
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org_admin_need = _OrganizationNeed(namespace, 'admin')
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super(ReadRepositoryPermission, self).__init__(admin_need, write_need,
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read_need, org_admin_need)
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class AdministerRepositoryPermission(Permission):
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def __init__(self, namespace, name):
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admin_need = _RepositoryNeed(namespace, name, 'admin')
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org_admin_need = _OrganizationNeed(namespace, 'admin')
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super(AdministerRepositoryPermission, self).__init__(admin_need,
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org_admin_need)
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class CreateRepositoryPermission(Permission):
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def __init__(self, namespace):
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admin_org = _OrganizationNeed(namespace, 'admin')
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create_repo_org = _OrganizationNeed(namespace, 'creator')
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super(CreateRepositoryPermission, self).__init__(admin_org,
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create_repo_org)
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class UserPermission(Permission):
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def __init__(self, username):
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user_need = UserNeed(username)
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super(UserPermission, self).__init__(user_need)
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class AdministerOrganizationPermission(Permission):
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def __init__(self, org_name):
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admin_org = _OrganizationNeed(org_name, 'admin')
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super(AdministerOrganizationPermission, self).__init__(admin_org)
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class OrganizationMemberPermission(Permission):
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def __init__(self, org_name):
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admin_org = _OrganizationNeed(org_name, 'admin')
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repo_creator_org = _OrganizationNeed(org_name, 'creator')
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org_member = _OrganizationNeed(org_name, 'member')
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super(OrganizationMemberPermission, self).__init__(admin_org, org_member,
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repo_creator_org)
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class ViewTeamPermission(Permission):
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def __init__(self, org_name, team_name):
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team_admin = _TeamNeed(org_name, team_name, 'admin')
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team_creator = _TeamNeed(org_name, team_name, 'creator')
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team_member = _TeamNeed(org_name, team_name, 'member')
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admin_org = _OrganizationNeed(org_name, 'admin')
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super(ViewTeamPermission, self).__init__(team_admin, team_creator,
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team_member, admin_org)
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@identity_loaded.connect_via(app)
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def on_identity_loaded(sender, identity):
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logger.debug('Identity loaded: %s' % identity)
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# We have verified an identity, load in all of the permissions
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if isinstance(identity, QuayDeferredPermissionUser):
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logger.debug('Deferring permissions for user: %s', identity.id)
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elif identity.auth_type == 'username':
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logger.debug('Switching username permission to deferred object: %s', identity.id)
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switch_to_deferred = QuayDeferredPermissionUser(identity.id, 'username')
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identity_changed.send(app, identity=switch_to_deferred)
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elif identity.auth_type == 'token':
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logger.debug('Loading permissions for token: %s', identity.id)
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token_data = model.load_token_data(identity.id)
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repo_grant = _RepositoryNeed(token_data.repository.namespace,
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token_data.repository.name,
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token_data.role.name)
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logger.debug('Delegate token added permission: {0}'.format(repo_grant))
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identity.provides.add(repo_grant)
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else:
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logger.error('Unknown identity auth type: %s', identity.auth_type)
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