def setUpClass(cls):
super(SharedAuthTest, cls).setUpClass()
settings.SHARED_APPS = (
'tenant_schemas',
'django.contrib.auth',
'django.contrib.contenttypes',
)
settings.TENANT_APPS = ('dts_test_app', )
settings.INSTALLED_APPS = settings.SHARED_APPS + settings.TENANT_APPS
cls.sync_shared()
Tenant(domain_url='test.com',
schema_name=get_public_schema_name()).save(
verbosity=cls.get_verbosity())
# Create a tenant
cls.tenant = Tenant(domain_url='tenant.test.com', schema_name='tenant')
cls.tenant.save(verbosity=cls.get_verbosity())
# Create some users
with schema_context(get_public_schema_name(
)): # this could actually also be executed inside a tenant
cls.user1 = User(username='******', email="*****@*****.**")
cls.user1.save()
cls.user2 = User(username='******', email="*****@*****.**")
cls.user2.save()
# Create instances on the tenant that point to the users on public
with tenant_context(cls.tenant):
cls.d1 = ModelWithFkToPublicUser(user=cls.user1)
cls.d1.save()
cls.d2 = ModelWithFkToPublicUser(user=cls.user2)
cls.d2.save()
def _get_tenant(self, request, allow_public=None):
tenant_id = request.session.get('active_tenant')
tenant = None
TenantModel = get_tenant_model()
if tenant_id is not None:
try:
tenant = TenantModel.objects.get(pk=tenant_id)
except TenantModel.DoesNotExist:
del request.session['active_tenant']
tenant = None
if tenant is None:
tenant = connection.tenant
if tenant.schema_name == get_public_schema_name():
allow_public = allow_public if allow_public is not None else (
self.model._meta.app_label in app_labels(settings.TENANT_APPS))
if not allow_public:
return None
tenant = TenantModel.objects.exclude(
schema_name=get_public_schema_name()).first()
if tenant:
self.message_user(request,
"This model does not exist in public schema."
" Falling into any first tenant.",
level=messages.WARNING)
return tenant
def set_schema_to_public(self):
"""
Instructs to stay in the common 'public' schema.
"""
self.tenant = FakeTenant(schema_name=get_public_schema_name())
self.schema_name = get_public_schema_name()
self.set_settings_schema(self.schema_name)
def save(self, verbosity=1, *args, **kwargs):
is_new = self.pk is None
if not self.db_string:
self.db_string = get_db_string(self.schema_name)
db = self.db_string
from django.db import connection
if db:
connection = connections[db]
if is_new and connection.schema_name != get_public_schema_name():
raise Exception("Can't create tenant outside the public schema. "
"Current schema is %s." % connection.schema_name)
elif not is_new and connection.schema_name not in (
self.schema_name, get_public_schema_name()):
raise Exception("Can't update tenant outside it's own schema or "
"the public schema. Current schema is %s." %
connection.schema_name)
super(TenantMixin, self).save(*args, **kwargs)
if is_new and self.auto_create_schema:
try:
self.create_schema(check_if_exists=True,
verbosity=verbosity,
db=db)
except Exception as e:
# We failed creating the tenant, delete what we created and
# re-raise the exception
self.delete(force_drop=True, using=db)
raise
else:
post_schema_sync.send(sender=TenantMixin, tenant=self)
def setUpClass(cls):
super(SharedAuthTest, cls).setUpClass()
settings.SHARED_APPS = ('tenant_schemas',
'django.contrib.auth',
'django.contrib.contenttypes', )
settings.TENANT_APPS = ('dts_test_app', )
settings.INSTALLED_APPS = settings.SHARED_APPS + settings.TENANT_APPS
cls.sync_shared()
Tenant(domain_url='test.com', schema_name=get_public_schema_name()).save()
# Create a tenant
cls.tenant = Tenant(domain_url='tenant.test.com', schema_name='tenant')
cls.tenant.save()
# Create some users
with schema_context(get_public_schema_name()): # this could actually also be executed inside a tenant
cls.user1 = User(username='******', email="*****@*****.**")
cls.user1.save()
cls.user2 = User(username='******', email="*****@*****.**")
cls.user2.save()
# Create instances on the tenant that point to the users on public
with tenant_context(cls.tenant):
cls.d1 = ModelWithFkToPublicUser(user=cls.user1)
cls.d1.save()
cls.d2 = ModelWithFkToPublicUser(user=cls.user2)
cls.d2.save()
def set_schema_to_public(self):
"""
Instructs to stay in the common 'public' schema.
"""
self.tenant = FakeTenant(schema_name=get_public_schema_name())
self.schema_name = get_public_schema_name()
self.set_settings_schema(self.schema_name)
def handle(self, *args, **options):
super(Command, self).handle(*args, **options)
self.PUBLIC_SCHEMA_NAME = get_public_schema_name()
executor = get_executor(codename=self.executor)(self.args, self.options)
if self.sync_public and not self.schema_name:
self.schema_name = self.PUBLIC_SCHEMA_NAME
if self.sync_public:
executor.run_migrations(tenants=[self.schema_name])
if self.sync_tenant:
if self.schema_name and self.schema_name != self.PUBLIC_SCHEMA_NAME:
if not schema_exists(self.schema_name):
raise MigrationSchemaMissing(
'Schema "{}" does not exist'.format(self.schema_name)
)
else:
tenants = [self.schema_name]
else:
tenants = (
get_tenant_model()
.objects.exclude(schema_name=get_public_schema_name())
.values_list("schema_name", flat=True)
)
executor.run_migrations(tenants=tenants)
def sync_shared(cls, db=None):
if not db:
call_command('migrate_schemas',
schema_name=get_public_schema_name(),
interactive=False,
verbosity=cls.get_verbosity(),
run_syncdb=True)
call_command('migrate_schemas',
schema_name=get_public_schema_name(),
interactive=False,
verbosity=cls.get_verbosity(),
run_syncdb=True,
db=db)
def sync_shared(cls):
if django.VERSION >= (1, 7, 0):
call_command('migrate_schemas',
schema_name=get_public_schema_name(),
interactive=False,
verbosity=cls.get_verbosity())
else:
call_command('sync_schemas',
schema_name=get_public_schema_name(),
tenant=False,
public=True,
interactive=False,
migrate_all=True,
verbosity=cls.get_verbosity())
def get_tenant(self, model, hostname, request):
try:
schema = model.objects.get(schema_name=get_public_schema_name())
except ObjectDoesNotExist as ex:
schema = model.objects.create(
domain_url=hostname,
schema_name=get_public_schema_name(),
tenant_name=TenantConstants.DEFAULT_TENANT_NAME)
schema.save()
authentication = request.META.get('HTTP_AUTHORIZATION')
if authentication is not None and "Bearer " in authentication:
tenant = JWTUtils.decode_access_token(authentication, False)
tenant_name = tenant.get("tenant")
schema = model.objects.get(tenant_name=tenant_name)
return schema
def save(self, verbosity=1, *args, **kwargs):
is_new = self.pk is None
if is_new and connection.schema_name != get_public_schema_name():
raise Exception("Can't create tenant outside the public schema. Current schema is %s."
% connection.schema_name)
elif not is_new and connection.schema_name not in (self.schema_name, get_public_schema_name()):
raise Exception("Can't update tenant outside it's own schema or the public schema. Current schema is %s."
% connection.schema_name)
super(TenantMixin, self).save(*args, **kwargs)
if is_new and self.auto_create_schema:
self.create_schema(check_if_exists=True, verbosity=verbosity)
post_schema_sync.send(sender=TenantMixin, tenant=self)
def save(self, verbosity=1, *args, **kwargs):
is_new = self.pk is None
if is_new and connection.schema_name != get_public_schema_name():
raise Exception("Can't create tenant outside the public schema. Current schema is %s."
% connection.schema_name)
elif not is_new and connection.schema_name not in (self.schema_name, get_public_schema_name()):
raise Exception("Can't update tenant outside it's own schema or the public schema. Current schema is %s."
% connection.schema_name)
super(TenantMixin, self).save(*args, **kwargs)
if is_new and self.auto_create_schema:
self.create_schema(check_if_exists=True, verbosity=verbosity)
post_schema_sync.send(sender=TenantMixin, tenant=self)
def get_tenant(self, model, hostname, request):
try:
public_schema = model.objects.get(schema_name=get_public_schema_name())
except ObjectDoesNotExist:
public_schema = model.objects.create(
domain_url=hostname,
schema_name=get_public_schema_name(),
tenant_name=get_public_schema_name().capitalize(),
paid_until=date.today() + relativedelta(months=+1),
on_trial=True)
public_schema.save()
x_request_id = request.META.get('HTTP_X_REQUEST_ID', public_schema.tenant_uuid)
tenant_model = model.objects.get(tenant_uuid=x_request_id)
print(tenant_model, public_schema)
return tenant_model if not None else public_schema
def setUpClass(cls):
settings.TENANT_MODEL = 'tenant_schemas.Tenant'
settings.SHARED_APPS = ('tenant_schemas', )
settings.TENANT_APPS = ('dts_test_app',
'django.contrib.contenttypes',
'django.contrib.auth', )
settings.INSTALLED_APPS = settings.SHARED_APPS + settings.TENANT_APPS
# Django calls syncdb by default for the test database, but we want
# a blank public schema for this set of tests.
connection.set_schema_to_public()
cursor = connection.cursor()
cursor.execute('DROP SCHEMA %s CASCADE; CREATE SCHEMA %s;'
% (get_public_schema_name(), get_public_schema_name(), ))
super(BaseTestCase, cls).setUpClass()
def setUpClass(cls):
settings.TENANT_MODEL = 'tenant_schemas.Tenant'
settings.SHARED_APPS = ('tenant_schemas', )
settings.TENANT_APPS = ('dts_test_app',
'django.contrib.contenttypes',
'django.contrib.auth', )
settings.INSTALLED_APPS = settings.SHARED_APPS + settings.TENANT_APPS
# Django calls syncdb by default for the test database, but we want
# a blank public schema for this set of tests.
connection.set_schema_to_public()
cursor = connection.cursor()
cursor.execute('DROP SCHEMA IF EXISTS %s CASCADE; CREATE SCHEMA %s;'
% (get_public_schema_name(), get_public_schema_name()))
super(BaseTestCase, cls).setUpClass()
def sync_shared(cls):
if django.VERSION >= (1, 7, 0):
call_command('migrate_schemas',
schema_name=get_public_schema_name(),
interactive=False,
verbosity=cls.get_verbosity(),
run_syncdb=True)
else:
call_command('sync_schemas',
schema_name=get_public_schema_name(),
tenant=False,
public=True,
interactive=False,
migrate_all=True,
verbosity=cls.get_verbosity())
def handle(self, *args, **options):
self.non_tenant_schemas = settings.PG_EXTRA_SEARCH_PATHS + ['public']
self.sync_tenant = options.get('tenant')
self.sync_public = options.get('shared')
self.schema_name = options.get('schema_name')
self.args = args
self.options = options
self.PUBLIC_SCHEMA_NAME = get_public_schema_name()
if self.schema_name:
if self.sync_public:
raise CommandError("schema should only be used "
"with the --tenant switch.")
elif self.schema_name == self.PUBLIC_SCHEMA_NAME:
self.sync_public = True
else:
self.sync_tenant = True
elif not self.sync_public and not self.sync_tenant:
# no options set, sync both
self.sync_tenant = True
self.sync_public = True
if self.sync_public and not self.schema_name:
self.schema_name = self.PUBLIC_SCHEMA_NAME
if self.sync_public:
self.run_migrations(self.schema_name, settings.SHARED_APPS)
if self.sync_tenant:
if self.schema_name and \
(self.schema_name != self.PUBLIC_SCHEMA_NAME):
# Make sure the tenant exists and the schema belongs to
# a tenant; We don't want to sync to extensions schema by
# mistake
if not schema_exists(self.schema_name):
raise RuntimeError('Schema "{}" does not exist'.format(
self.schema_name))
elif self.schema_name in self.non_tenant_schemas:
raise RuntimeError(
'Schema "{}" does not belong to any tenant'.format(
self.schema_name))
else:
self.run_migrations(self.schema_name, settings.TENANT_APPS)
else:
all_tenants = get_tenant_model().objects.exclude(
schema_name=get_public_schema_name())
for tenant in all_tenants:
self.run_migrations(tenant.schema_name,
settings.TENANT_APPS)
def handle_noargs(self, **options):
# todo: awful lot of duplication from sync_schemas
sync_tenant = options.get('tenant')
sync_public = options.get('shared')
schema_name = options.get('schema_name')
self.installed_apps = settings.INSTALLED_APPS
self.options = options
if sync_public and schema_name:
raise CommandError("schema should only be used with the --tenant switch.")
if not hasattr(settings, 'TENANT_APPS') and sync_tenant:
raise CommandError("No setting found for TENANT_APPS")
if not hasattr(settings, 'SHARED_APPS') and sync_public:
raise CommandError("No setting found for SHARED_APPS")
if not sync_public and not sync_tenant and not schema_name:
# no options set, sync both
sync_tenant = True
sync_public = True
if schema_name:
if schema_name == get_public_schema_name():
sync_public = True
else:
sync_tenant = True
if hasattr(settings, 'TENANT_APPS'):
self.tenant_apps = settings.TENANT_APPS
if hasattr(settings, 'SHARED_APPS'):
self.shared_apps = settings.SHARED_APPS
if sync_public:
self.migrate_public_apps()
if sync_tenant:
self.migrate_tenant_apps(schema_name)
def migrate_tenant_apps(self, schema_name=None):
self._save_south_settings()
apps = self.tenant_apps or self.installed_apps
self._set_managed_apps(included_apps=apps,
excluded_apps=self.shared_apps)
if schema_name:
self._notice("=== Running migrate for schema: %s" % schema_name)
connection.set_schema_to_public()
tenant = get_tenant_model().objects.get(schema_name=schema_name)
self._migrate_schema(tenant)
else:
all_tenants = get_tenant_model().objects.exclude(
schema_name=get_public_schema_name())
if not all_tenants:
self._notice("No tenants found")
for tenant in all_tenants:
Migrations._dependencies_done = False # very important, the dependencies need to be purged from cache
self._notice("=== Running migrate for schema %s" %
tenant.schema_name)
self._migrate_schema(tenant)
self._restore_south_settings()
def allow_migrate(self, db, app_label, model_name=None, **hints):
# the imports below need to be done here else django <1.5 goes crazy
# https://code.djangoproject.com/ticket/20704
from django.db import connection
from tenant_schemas.utils import get_public_schema_name, app_labels
from tenant_schemas.postgresql_backend.base import DatabaseWrapper as TenantDbWrapper
db_engine = settings.DATABASES[db]["ENGINE"]
if not (
db_engine == "tenant_schemas.postgresql_backend"
or issubclass(getattr(load_backend(db_engine), "DatabaseWrapper"), TenantDbWrapper)
):
return None
if isinstance(app_label, ModelBase):
# In django <1.7 the `app_label` parameter is actually `model`
app_label = app_label._meta.app_label
if connection.schema_name == get_public_schema_name():
if app_label not in app_labels(settings.SHARED_APPS):
return False
else:
if app_label not in app_labels(settings.TENANT_APPS):
return False
return None
def handle(self, *args, **options):
self.sync_tenant = options.get('tenant')
self.sync_public = options.get('shared')
self.schema_name = options.get('schema_name')
self.executor = options.get('executor')
self.installed_apps = settings.INSTALLED_APPS
self.args = args
self.options = options
if self.schema_name:
if self.sync_public:
raise CommandError("schema should only be used with the --tenant switch.")
elif self.schema_name == get_public_schema_name():
self.sync_public = True
else:
self.sync_tenant = True
elif not self.sync_public and not self.sync_tenant:
# no options set, sync both
self.sync_tenant = True
self.sync_public = True
if hasattr(settings, 'TENANT_APPS'):
self.tenant_apps = settings.TENANT_APPS
if hasattr(settings, 'SHARED_APPS'):
self.shared_apps = settings.SHARED_APPS
def delete(self, request, name=None):
schemas = list(Tenant.objects.all().values_list('schema_name',
flat=True))
schemas.remove(get_public_schema_name())
if name:
try:
probe = admin_models.Probe.objects.get(name=name)
mt = admin_models.MetricTemplate.objects.filter(
probekey=admin_models.ProbeHistory.objects.get(
name=probe.name,
package__version=probe.package.version))
if len(mt) == 0:
for schema in schemas:
# need to iterate through schemas because of foreign
# key in Metric model
with schema_context(schema):
admin_models.ProbeHistory.objects.filter(
object_id=probe).delete()
probe.delete()
return Response(status=status.HTTP_204_NO_CONTENT)
else:
return Response(
{
'detail':
'You cannot delete Probe that is associated '
'to metric templates!'
},
status=status.HTTP_400_BAD_REQUEST)
except admin_models.Probe.DoesNotExist:
raise NotFound(status=404, detail='Probe not found')
else:
return Response(status=status.HTTP_400_BAD_REQUEST)
def migrate_tenant_apps(self, schema_name=None):
self._save_south_settings()
apps = self.tenant_apps or self.installed_apps
self._set_managed_apps(included_apps=apps,
excluded_apps=self.shared_apps)
migrate_command = MigrateCommand()
if schema_name:
print self.style.NOTICE("=== Running migrate for schema: %s" %
schema_name)
connection.set_schema_to_public()
sync_tenant = get_tenant_model().objects.filter(
schema_name=schema_name).get()
connection.set_tenant(sync_tenant, include_public=False)
migrate_command.execute(**self.options)
else:
public_schema_name = get_public_schema_name()
tenant_schemas_count = get_tenant_model().objects.exclude(
schema_name=public_schema_name).count()
if not tenant_schemas_count:
print self.style.NOTICE("No tenants found")
for tenant_schema in get_tenant_model().objects.exclude(
schema_name=public_schema_name).all():
Migrations._dependencies_done = False # very important, the dependencies need to be purged from cache
print self.style.NOTICE("=== Running migrate for schema %s" %
tenant_schema.schema_name)
connection.set_tenant(tenant_schema, include_public=False)
migrate_command.execute(**self.options)
self._restore_south_settings()
def process_request(self, request, *args, **kwargs):
db = self.get_database(request)
connections[db].set_schema_to_public()
request_cfg.db = db
hostname = self.hostname_from_request(request)
TenantModel = get_tenant_model()
try:
# get_tenant must be implemented by extending this class.
tenant = self.get_tenant(TenantModel, hostname, request)
assert isinstance(tenant, TenantModel)
except TenantModel.DoesNotExist:
raise self.TENANT_NOT_FOUND_EXCEPTION('No tenant for {!r}'.format(
request.get_host()))
except AssertionError:
raise self.TENANT_NOT_FOUND_EXCEPTION('Invalid tenant {!r}'.format(
request.tenant))
request.tenant = tenant
connections[db].set_tenant(request.tenant)
# Do we have a public-specific urlconf?
if hasattr(
settings, 'PUBLIC_SCHEMA_URLCONF'
) and request.tenant.schema_name == get_public_schema_name():
request.urlconf = settings.PUBLIC_SCHEMA_URLCONF
def test_tenant_apps_and_shared_apps_can_have_the_same_apps(self):
"""
Tests that both SHARED_APPS and TENANT_APPS can have apps in common.
In this case they should get synced to both tenant and public schemas.
"""
settings.SHARED_APPS = (
'tenant_schemas', # 2 tables
'django.contrib.auth', # 6 tables
'django.contrib.contenttypes', # 1 table
'django.contrib.sessions',
) # 1 table
settings.TENANT_APPS = ('django.contrib.sessions', ) # 1 table
settings.INSTALLED_APPS = settings.SHARED_APPS + settings.TENANT_APPS
self.sync_shared()
tenant = Tenant(domain_url='arbitrary.test.com', schema_name='test')
tenant.save(verbosity=BaseTestCase.get_verbosity())
shared_tables = self.get_tables_list_in_schema(
get_public_schema_name())
tenant_tables = self.get_tables_list_in_schema(tenant.schema_name)
self.assertEqual(2 + 6 + 1 + 1 + self.MIGRATION_TABLE_SIZE,
len(shared_tables))
self.assertIn('django_session', shared_tables)
self.assertEqual(1 + self.MIGRATION_TABLE_SIZE, len(tenant_tables))
self.assertIn('django_session', tenant_tables)
def invite_to_company(self, request):
if 'emp_id' in request.data:
emp_id = request.data['emp_id']
else:
return Response(data="Required parameter 'emp_id' is missing", status=status.HTTP_400_BAD_REQUEST)
if 'company_from' in request.data:
company_from = request.data['company_from']
else:
return Response(data="Required parameter 'company_from' is missing", status=status.HTTP_400_BAD_REQUEST)
if company_from == connection.schema_name:
return Response(data='Cannot invite employee from same company.', status=status.HTTP_400_BAD_REQUEST)
with schema_context(get_public_schema_name()):
if not Company.objects.filter(name=company_from).exists():
return Response(data='Invalid company name.', status=status.HTTP_400_BAD_REQUEST)
with schema_context(company_from):
try:
employee = Employee.objects.get(id=emp_id)
except Employee.DoesNotExist:
return Response(data='Invalid employee id.', status=status.HTTP_400_BAD_REQUEST)
return Response(data='Employee invited to company.', status=status.HTTP_200_OK)
def _cursor(self):
"""
Here it happens. We hope every Django db operation using PostgreSQL
must go through this to get the cursor handle. We change the path.
"""
cursor = super(DatabaseWrapper, self)._cursor()
# Actual search_path modification for the cursor. Database will
# search schemata from left to right when looking for the object
# (table, index, sequence, etc.).
if not self.schema_name:
raise ImproperlyConfigured(
"Database schema not set. Did you forget "
"to call set_schema() or set_tenant()?")
_check_identifier(self.schema_name)
public_schema_name = get_public_schema_name()
search_paths = []
if self.schema_name == public_schema_name:
search_paths = [public_schema_name]
elif self.include_public_schema:
search_paths = [self.schema_name, public_schema_name]
else:
search_paths = [self.schema_name]
search_paths.extend(EXTRA_SEARCH_PATHS)
cursor.execute('SET search_path = {0}'.format(','.join(search_paths)))
return cursor
def handle(self, *args, **options):
self.sync_tenant = options.get('tenant')
self.sync_public = options.get('shared')
self.schema_name = options.get('schema_name')
self.installed_apps = settings.INSTALLED_APPS
self.args = args
self.options = options
if self.schema_name:
if self.sync_public:
raise CommandError(
"schema should only be used with the --tenant switch.")
elif self.schema_name == get_public_schema_name():
self.sync_public = True
else:
self.sync_tenant = True
elif not self.sync_public and not self.sync_tenant:
# no options set, sync both
self.sync_tenant = True
self.sync_public = True
if hasattr(settings, 'TENANT_APPS'):
self.tenant_apps = settings.TENANT_APPS
if hasattr(settings, 'SHARED_APPS'):
self.shared_apps = settings.SHARED_APPS
def create_profile(sender, **kwargs):
from django.db import connection
if connection.schema_name != get_public_schema_name():
current_user = kwargs["instance"]
if kwargs["created"]:
new_profile = Profile(user=current_user)
# if user's name matches student number (e.g 9912345), set student number:
pattern = re.compile(Profile.student_number_regex_string)
if pattern.match(current_user.get_username()):
new_profile.student_number = int(current_user.get_username())
# set first and last name on the profile. This should be removed and just use the first and last name
# from the user model! But when first implemented, first and last name weren't included in the the sign up form.
new_profile.first_name = current_user.first_name
new_profile.last_name = current_user.last_name
new_profile.save()
staff_list = User.objects.filter(is_staff=True)
notify.send(
current_user,
target=new_profile,
recipient=staff_list[0],
affected_users=staff_list,
icon="<i class='fa fa-fw fa-lg fa-user text-success'></i>",
verb='. New user registered: ')
def delete(self, request, name=None):
schemas = list(Tenant.objects.all().values_list('schema_name',
flat=True))
schemas.remove(get_public_schema_name())
if name:
try:
mt = admin_models.MetricTemplate.objects.get(name=name)
for schema in schemas:
with schema_context(schema):
try:
admin_models.History.objects.filter(
object_id=mt.id,
content_type=ContentType.objects.get_for_model(
mt)).delete()
m = Metric.objects.get(name=name)
TenantHistory.objects.filter(
object_id=m.id,
content_type=ContentType.objects.get_for_model(
m)).delete()
m.delete()
except Metric.DoesNotExist:
pass
mt.delete()
return Response(status=status.HTTP_204_NO_CONTENT)
except admin_models.MetricTemplate.DoesNotExist:
raise NotFound(status=404, detail='Metric template not found')
else:
return Response(status=status.HTTP_400_BAD_REQUEST)
def process_request(self, request):
"""
Resets to public schema
Some nasty weird bugs happened at the production environment without this call.
connection.pg_thread.schema_name would already be set and then terrible errors
would occur. Any idea why? My theory is django implements connection as some sort
of threading local variable.
"""
connection.set_schema_to_public()
request.tenant = self.set_tenant(request.get_host())
# do we have tenant-specific URLs?
if (
hasattr(settings, "PUBLIC_SCHEMA_URL_TOKEN")
and request.tenant.schema_name == get_public_schema_name()
and request.path_info[-1] == "/"
):
# we are not at the public schema, manually alter routing to schema-dependent urls
request.path_info = settings.PUBLIC_SCHEMA_URL_TOKEN + request.path_info
if SET_TENANT_SITE_DYNAMICALLY and hasattr(request.tenant, "site") and request.tenant.site:
SITE_THREAD_LOCAL.SITE_ID = request.tenant.site_id
# dynamically set the site
else:
SITE_THREAD_LOCAL.SITE_ID = DEFAULT_SITE_ID
def sync_tenant_apps(self, schema_name=None):
ContentType.objects.clear_cache()
apps = self.tenant_apps or self.installed_apps
self._set_managed_apps(apps)
syncdb_command = SyncdbCommand()
if schema_name:
print self.style.NOTICE("=== Running syncdb for schema: %s" %
schema_name)
sync_tenant = get_tenant_model().objects.filter(
schema_name=schema_name).get()
connection.set_tenant(sync_tenant, include_public=False)
syncdb_command.execute(**self.options)
else:
public_schema_name = get_public_schema_name()
tenant_schemas_count = get_tenant_model().objects.exclude(
schema_name=public_schema_name).count()
if not tenant_schemas_count:
print self.style.NOTICE("No tenants found")
for tenant_schema in get_tenant_model().objects.exclude(
schema_name=public_schema_name).all():
print self.style.NOTICE("=== Running syncdb for schema %s" %
tenant_schema.schema_name)
connection.set_tenant(tenant_schema, include_public=False)
syncdb_command.execute(**self.options)
def process_request(self, request):
# Connection needs first to be at the public schema, as this is where
# the tenant metadata is stored.
connection.set_schema_to_public()
hostname = self.hostname_from_request(request)
TenantModel = get_tenant_model()
try:
request.tenant = TenantModel.get_for_domain(hostname)
connection.set_tenant(request.tenant)
except TenantModel.DoesNotExist:
raise self.TENANT_NOT_FOUND_EXCEPTION(
'No tenant for hostname "%s"' % hostname)
# Content type can no longer be cached as public and tenant schemas
# have different models. If someone wants to change this, the cache
# needs to be separated between public and shared schemas. If this
# cache isn't cleared, this can cause permission problems. For example,
# on public, a particular model has id 14, but on the tenants it has
# the id 15. if 14 is cached instead of 15, the permissions for the
# wrong model will be fetched.
ContentType.objects.clear_cache()
# Do we have a public-specific urlconf?
if hasattr(
settings, 'PUBLIC_SCHEMA_URLCONF'
) and request.tenant.schema_name == get_public_schema_name():
request.urlconf = settings.PUBLIC_SCHEMA_URLCONF
def test_command(self):
"""
Tests that tenant_command is capable of wrapping commands
and its parameters.
"""
settings.SHARED_APPS = (
"tenant_schemas",
"django.contrib.contenttypes",
)
settings.TENANT_APPS = ()
settings.INSTALLED_APPS = settings.SHARED_APPS + settings.TENANT_APPS
self.sync_shared()
Tenant(
domain_url="localhost",
schema_name="public").save(verbosity=BaseTestCase.get_verbosity())
out = StringIO()
tenant_command.Command().handle(
"dumpdata",
get_public_schema_name(),
"tenant_schemas",
natural_foreign=True,
stdout=out,
)
self.assertJSONEqual(
out.getvalue(),
[{
"fields": {
"domain_url": "localhost",
"schema_name": "public"
},
"model": "tenant_schemas.tenant",
"pk": 1,
}],
)
def process_request(self, request):
# Connection needs first to be at the public schema, as this is where
# the tenant metadata is stored.
connection.set_schema_to_public()
hostname = self.hostname_from_request(request)
TenantModel = get_tenant_model()
try:
# get_tenant must be implemented by extending this class.
tenant = self.get_tenant(TenantModel, hostname, request)
assert isinstance(tenant, TenantModel)
except TenantModel.DoesNotExist:
raise self.TENANT_NOT_FOUND_EXCEPTION("No tenant for {!r}".format(
request.get_host()))
except AssertionError:
raise self.TENANT_NOT_FOUND_EXCEPTION("Invalid tenant {!r}".format(
request.tenant))
request.tenant = tenant
connection.set_tenant(request.tenant)
# Do we have a public-specific urlconf?
if (hasattr(settings, "PUBLIC_SCHEMA_URLCONF")
and request.tenant.schema_name == get_public_schema_name()):
request.urlconf = settings.PUBLIC_SCHEMA_URLCONF
def test_command(self):
"""
Tests that tenant_command is capable of wrapping commands
and its parameters.
"""
settings.SHARED_APPS = (
'tenant_schemas',
'django.contrib.contenttypes',
)
settings.TENANT_APPS = ()
settings.INSTALLED_APPS = settings.SHARED_APPS + settings.TENANT_APPS
self.sync_shared()
Tenant(
domain_url='localhost',
schema_name='public').save(verbosity=BaseTestCase.get_verbosity())
out = StringIO()
call_command('tenant_command',
args=('dumpdata', 'tenant_schemas'),
natural_foreign=True,
schema_name=get_public_schema_name(),
stdout=out)
self.assertEqual(
json.loads(
'[{"fields": {"domain_url": "localhost", "schema_name": "public"}, '
'"model": "tenant_schemas.tenant", "pk": 1}]'),
json.loads(out.getvalue()))
def allow_migrate(self, db, app_label, model_name=None, **hints):
# the imports below need to be done here else django <1.5 goes crazy
# https://code.djangoproject.com/ticket/20704
from django.db import connection
from tenant_schemas.utils import get_public_schema_name, app_labels
if isinstance(app_label, ModelBase):
# In django <1.7 the `app_label` parameter is actually `model`
app_label = app_label._meta.app_label
if connection.schema_name == get_public_schema_name():
if app_label not in app_labels(settings.SHARED_APPS):
return False
else:
if app_label not in app_labels(settings.TENANT_APPS):
return False
if model_name:
model = apps.get_model(app_label=app_label, model_name=model_name)
if hasattr(model, '__schema_name__') and model.__schema_name__:
conn_schema = connection.tenant.schema_name.strip()
if conn_schema == 'public' and conn_schema != model.__schema_name__ or \
conn_schema != 'public' and model.__schema_name__ == 'public':
return False
return None
def migrate_tenant_apps(self, schema_name=None):
self._save_south_settings()
apps = self.tenant_apps or self.installed_apps
self._set_managed_apps(included_apps=apps, excluded_apps=self.shared_apps)
syncdb_command = MigrateCommand()
if schema_name:
print self.style.NOTICE("=== Running migrate for schema: %s" % schema_name)
connection.set_schema_to_public()
sync_tenant = get_tenant_model().objects.filter(schema_name=schema_name).get()
connection.set_tenant(sync_tenant, include_public=False)
syncdb_command.execute(**self.options)
else:
public_schema_name = get_public_schema_name()
tenant_schemas_count = get_tenant_model().objects.exclude(schema_name=public_schema_name).count()
if not tenant_schemas_count:
print self.style.NOTICE("No tenants found")
for tenant_schema in get_tenant_model().objects.exclude(schema_name=public_schema_name).all():
Migrations._dependencies_done = False # very important, the dependencies need to be purged from cache
print self.style.NOTICE("=== Running migrate for schema %s" % tenant_schema.schema_name)
connection.set_tenant(tenant_schema, include_public=False)
syncdb_command.execute(**self.options)
self._restore_south_settings()
def process_request(self, request): # Wei-Lin
connection.set_schema_to_public()
hostname_without_port = filter_url_path(request.path)
if hostname_without_port in self.filter_first_path:
print("public schema")
else:
TenantModel = get_tenant_model()
try:
request.tenant = TenantModel.objects.get(
schema_name=hostname_without_port)
except utils.DatabaseError:
request.urlconf = settings.PUBLIC_SCHEMA_URLCONF
return
except TenantModel.DoesNotExist:
if hostname_without_port in ("127.0.0.1", "localhost"):
request.urlconf = settings.PUBLIC_SCHEMA_URLCONF
return
else:
raise Http404
connection.set_tenant(request.tenant)
ContentType.objects.clear_cache()
if hasattr(
settings, 'PUBLIC_SCHEMA_URLCONF'
) and request.tenant.schema_name == get_public_schema_name():
request.urlconf = settings.PUBLIC_SCHEMA_URLCONF
def _hidden_component(self, component):
if "tenant_schemas" not in settings.INSTALLED_APPS:
# Only hide components when we are not in multi-tenant mode
return False
# For components only registered for specific schemas, return solely
# based on that option. That is, you can't disable an explicitly
# registered component for a given schema.
schemas = self._schemas[component.__class__]
if schemas:
if connection.tenant.schema_name in schemas:
return False
return True
application = component.__module__.split(".admin", 1)[0]
logger.debug("application=%r", application)
# Before we allow it through, make sure the application is available
# on this tenant.
if application in settings.INSTALLED_APPS:
if connection.tenant.schema_name == get_public_schema_name():
if application not in settings.SHARED_APPS:
return True
else:
if application not in settings.TENANT_APPS:
return True
# Lastly, check if the client allows the application in this tenant.
try:
return connection.tenant.hidden_component(component)
except AttributeError:
return False
def _cursor(self):
"""
Here it happens. We hope every Django db operation using PostgreSQL
must go through this to get the cursor handle. We change the path.
"""
cursor = super(DatabaseWrapper, self)._cursor()
# Actual search_path modification for the cursor. Database will
# search schemata from left to right when looking for the object
# (table, index, sequence, etc.).
if not self.schema_name:
raise ImproperlyConfigured("Database schema not set. Did you forget "
"to call set_schema() or set_tenant()?")
_check_identifier(self.schema_name)
public_schema_name = get_public_schema_name()
search_paths = []
if self.schema_name == public_schema_name:
search_paths = [public_schema_name]
elif self.include_public_schema:
search_paths = [self.schema_name, public_schema_name]
else:
search_paths = [self.schema_name]
search_paths.extend(EXTRA_SEARCH_PATHS)
cursor.execute('SET search_path = {}'.format(','.join(search_paths)))
return cursor
def handle_noargs(self, **options):
# todo: awful lot of duplication from sync_schemas
sync_tenant = options.get('tenant')
sync_public = options.get('shared')
schema_name = options.get('schema_name')
self.installed_apps = settings.INSTALLED_APPS
self.options = options
if sync_public and schema_name:
raise CommandError(
"schema should only be used with the --tenant switch.")
if not sync_public and not sync_tenant and not schema_name:
# no options set, sync both
sync_tenant = True
sync_public = True
if schema_name:
if schema_name == get_public_schema_name():
sync_public = True
else:
sync_tenant = True
if hasattr(settings, 'TENANT_APPS'):
self.tenant_apps = settings.TENANT_APPS
if hasattr(settings, 'SHARED_APPS'):
self.shared_apps = settings.SHARED_APPS
if sync_public:
self.migrate_public_apps()
if sync_tenant:
self.migrate_tenant_apps(schema_name)
def handle(self, *args, **options):
self.non_tenant_schemas = settings.PG_EXTRA_SEARCH_PATHS + ['public']
self.sync_tenant = options.get('tenant')
self.sync_public = options.get('shared')
self.schema_name = options.get('schema_name')
self.args = args
self.options = options
self.PUBLIC_SCHEMA_NAME = get_public_schema_name()
if self.schema_name:
if self.sync_public:
raise CommandError("schema should only be used "
"with the --tenant switch.")
elif self.schema_name == self.PUBLIC_SCHEMA_NAME:
self.sync_public = True
else:
self.sync_tenant = True
elif not self.sync_public and not self.sync_tenant:
# no options set, sync both
self.sync_tenant = True
self.sync_public = True
if self.sync_public and not self.schema_name:
self.schema_name = self.PUBLIC_SCHEMA_NAME
if self.sync_public:
self.run_migrations(self.schema_name, settings.SHARED_APPS)
if self.sync_tenant:
if self.schema_name and \
(self.schema_name != self.PUBLIC_SCHEMA_NAME):
# Make sure the tenant exists and the schema belongs to
# a tenant; We don't want to sync to extensions schema by
# mistake
if not schema_exists(self.schema_name):
raise RuntimeError('Schema "{}" does not exist'.format(
self.schema_name))
elif self.schema_name in self.non_tenant_schemas:
raise RuntimeError(
'Schema "{}" does not belong to any tenant'.format(
self.schema_name))
else:
self.run_migrations(self.schema_name, settings.TENANT_APPS)
else:
all_tenants = get_tenant_model().objects.exclude(
schema_name=get_public_schema_name())
for tenant in all_tenants:
self.run_migrations(tenant.schema_name, settings.TENANT_APPS)
def run_migrations(self, tenants):
public_schema_name = get_public_schema_name()
if public_schema_name in tenants:
run_migrations(self.args, self.options, self.codename, public_schema_name)
tenants.pop(tenants.index(public_schema_name))
self.run_tenant_migrations(tenants)
def setUpClass(cls):
super(TenantDataAndSettingsTest, cls).setUpClass()
settings.SHARED_APPS = ('tenant_schemas', )
settings.TENANT_APPS = ('dts_test_app',
'django.contrib.contenttypes',
'django.contrib.auth', )
settings.INSTALLED_APPS = settings.SHARED_APPS + settings.TENANT_APPS
cls.sync_shared()
Tenant(domain_url='test.com', schema_name=get_public_schema_name()).save()
def get_tenant(self, model, hostname, request):
try:
return super(DefaultTenantMiddleware, self).get_tenant(
model, hostname, request)
except model.DoesNotExist:
schema_name = self.DEFAULT_SCHEMA_NAME
if not schema_name:
schema_name = get_public_schema_name()
return model.objects.get(schema_name=schema_name)
def setUpClass(cls):
super(RoutesTestCase, cls).setUpClass()
settings.SHARED_APPS = ('tenant_schemas', )
settings.TENANT_APPS = ('dts_test_app',
'django.contrib.contenttypes',
'django.contrib.auth', )
settings.INSTALLED_APPS = settings.SHARED_APPS + settings.TENANT_APPS
cls.sync_shared()
cls.public_tenant = Tenant(domain_url='test.com', schema_name=get_public_schema_name())
cls.public_tenant.save(verbosity=BaseTestCase.get_verbosity())
def _cursor(self, name=None):
"""
Here it happens. We hope every Django db operation using PostgreSQL
must go through this to get the cursor handle. We change the path.
"""
if name:
# Only supported and required by Django 1.11 (server-side cursor)
cursor = super(DatabaseWrapper, self)._cursor(name=name)
else:
cursor = super(DatabaseWrapper, self)._cursor()
# optionally limit the number of executions - under load, the execution
# of `set search_path` can be quite time consuming
if (not get_limit_set_calls()) or not self.search_path_set:
# Actual search_path modification for the cursor. Database will
# search schemata from left to right when looking for the object
# (table, index, sequence, etc.).
if not self.schema_name:
raise ImproperlyConfigured("Database schema not set. Did you forget "
"to call set_schema() or set_tenant()?")
_check_schema_name(self.schema_name)
public_schema_name = get_public_schema_name()
search_paths = []
if self.schema_name == public_schema_name:
search_paths = [public_schema_name]
elif self.include_public_schema:
search_paths = [self.schema_name, public_schema_name]
else:
search_paths = [self.schema_name]
search_paths.extend(EXTRA_SEARCH_PATHS)
if name:
# Named cursor can only be used once
cursor_for_search_path = self.connection.cursor()
else:
# Reuse
cursor_for_search_path = cursor
# In the event that an error already happened in this transaction and we are going
# to rollback we should just ignore database error when setting the search_path
# if the next instruction is not a rollback it will just fail also, so
# we do not have to worry that it's not the good one
try:
cursor_for_search_path.execute('SET search_path = {0}'.format(','.join(search_paths)))
except (django.db.utils.DatabaseError, psycopg2.InternalError):
self.search_path_set = False
else:
self.search_path_set = True
if name:
cursor_for_search_path.close()
return cursor
def sync_tenant_apps(self, schema_name=None):
if schema_name:
tenant = get_tenant_model().objects.filter(schema_name=schema_name).get()
self._sync_tenant(tenant)
else:
all_tenants = get_tenant_model().objects.exclude(schema_name=get_public_schema_name())
if not all_tenants:
self._notice("No tenants found!")
for tenant in all_tenants:
self._sync_tenant(tenant)
def set_tenant(self, tenant, include_public=True):
"""
Main API method to current database schema,
but it does not actually modify the db connection.
"""
self.tenant = tenant
if tenant is None:
self.schema_name = get_public_schema_name()
else:
self.schema_name = tenant.schema_name
self.include_public_schema = include_public
def handle(self, *args, **options):
super(MigrateSchemasCommand, self).handle(*args, **options)
self.PUBLIC_SCHEMA_NAME = get_public_schema_name()
if self.sync_public and not self.schema_name:
self.schema_name = self.PUBLIC_SCHEMA_NAME
if self.sync_public:
self.run_migrations(self.schema_name, settings.SHARED_APPS)
if self.sync_tenant:
if self.schema_name and self.schema_name != self.PUBLIC_SCHEMA_NAME:
if not schema_exists(self.schema_name):
raise RuntimeError('Schema "{}" does not exist'.format(
self.schema_name))
else:
self.run_migrations(self.schema_name, settings.TENANT_APPS)
else:
all_tenants = get_tenant_model().objects.exclude(schema_name=get_public_schema_name())
for tenant in all_tenants:
self.run_migrations(tenant.schema_name, settings.TENANT_APPS)
def save(self, verbosity=1, *args, **kwargs):
is_new = self.pk is None
if is_new and connection.schema_name != get_public_schema_name():
raise Exception("Can't create tenant outside the public schema. "
"Current schema is %s." % connection.schema_name)
elif not is_new and connection.schema_name not in (self.schema_name, get_public_schema_name()):
raise Exception("Can't update tenant outside it's own schema or "
"the public schema. Current schema is %s."
% connection.schema_name)
super(TenantMixin, self).save(*args, **kwargs)
if is_new and self.auto_create_schema:
try:
self.create_schema(check_if_exists=True, verbosity=verbosity)
except:
# We failed creating the tenant, delete what we created and
# re-raise the exception
self.delete(force_drop=True)
raise
def handle(self, *args, **options):
"""
Iterates a command over all registered schemata.
"""
if options['schema_name']:
# only run on a particular schema
connection.set_schema_to_public()
self.execute_command(get_tenant_model().objects.get(schema_name=options['schema_name']), self.COMMAND_NAME, *args, **options)
else:
for tenant in get_tenant_model().objects.all():
if not(options['skip_public'] and tenant.schema_name == get_public_schema_name()):
self.execute_command(tenant, self.COMMAND_NAME, *args, **options)
def save(self, verbosity=1, force_create=False, *args, **kwargs):
is_new = self.pk is None or force_create
if is_new and connection.schema_name not in (get_public_schema_name(), settings.DEFAULT_TENANT_SCHEMA):
raise Exception("Can't create tenant outside the public schema. "
"Current schema is %s." % connection.schema_name)
elif not is_new and connection.schema_name not in (self.schema_name, get_public_schema_name()):
raise Exception("Can't update tenant outside it's own schema or "
"the public schema. Current schema is %s."
% connection.schema_name)
super(TenantMixin, self).save(*args, **kwargs)
if is_new and self.is_active and self.auto_create_schema:
try:
self.create_schema(check_if_exists=True, verbosity=verbosity)
post_schema_sync.send(sender=TenantMixin, tenant=self)
except:
# We failed creating the tenant, delete what we created and
# re-raise the exception
self.delete(force_drop=True)
raise
def handle(self, *args, **options):
super(Command, self).handle(*args, **options)
self.PUBLIC_SCHEMA_NAME = get_public_schema_name()
executor = get_executor(codename=self.executor)(self.args, self.options)
if self.sync_public and not self.schema_name:
self.schema_name = self.PUBLIC_SCHEMA_NAME
if self.sync_public:
executor.run_migrations(tenants=[self.schema_name])
if self.sync_tenant:
if self.schema_name and self.schema_name != self.PUBLIC_SCHEMA_NAME:
if not schema_exists(self.schema_name):
raise MigrationSchemaMissing('Schema "{}" does not exist'.format(
self.schema_name))
else:
tenants = [self.schema_name]
else:
tenants = get_tenant_model().objects.exclude(schema_name=get_public_schema_name()).values_list(
'schema_name', flat=True)
executor.run_migrations(tenants=tenants)
def restore_schema(task, **kwargs):
""" Switches the schema back to the one from before running the task. """
from tenant_schemas.utils import get_public_schema_name
schema_name, include_public = getattr(task,
'_old_schema',
(get_public_schema_name(), True))
# If the schema names match, don't do anything.
if connection.schema_name == schema_name:
return
connection.set_schema(schema_name, include_public=include_public)
def delete(self, *args, **kwargs):
"""
Drops the schema related to the tenant instance. Just drop the schema if the parent
class model has the attribute auto_drop_schema set to True.
"""
if connection.get_schema() not in (self.schema_name, get_public_schema_name()):
raise Exception("Can't delete tenant outside it's own schema or the public schema. Current schema is %s."
% connection.get_schema())
if schema_exists(self.schema_name) and self.auto_drop_schema:
cursor = connection.cursor()
cursor.execute('DROP SCHEMA %s CASCADE' % self.schema_name)
super(TenantMixin, self).delete(*args, **kwargs)
def test_command(self):
"""
Tests that tenant_command is capable of wrapping commands
and its parameters.
"""
settings.SHARED_APPS = ('tenant_schemas',
'django.contrib.contenttypes', )
settings.TENANT_APPS = ()
settings.INSTALLED_APPS = settings.SHARED_APPS + settings.TENANT_APPS
self.sync_shared()
Tenant(domain_url='localhost', schema_name='public').save(verbosity=BaseTestCase.get_verbosity())
out = StringIO()
if django.VERSION >= (1, 8, 0):
call_command('tenant_command', args=('dumpdata', 'tenant_schemas'), natural_foreign=True,
schema_name=get_public_schema_name(), stdout=out)
else:
call_command('tenant_command', 'dumpdata', 'tenant_schemas', natural_foreign=True,
schema_name=get_public_schema_name(), stdout=out)
self.assertItemsEqual(
json.loads('[{"fields": {"domain_url": "localhost", "schema_name": "public"}, '
'"model": "tenant_schemas.tenant", "pk": 1}]'),
json.loads(out.getvalue()))
def allow_migrate(self, db, model):
# the imports below need to be done here else django <1.5 goes crazy
# https://code.djangoproject.com/ticket/20704
from django.db import connection
from tenant_schemas.utils import get_public_schema_name, app_labels
if connection.schema_name == get_public_schema_name():
if model._meta.app_label not in app_labels(settings.SHARED_APPS):
return False
else:
if model._meta.app_label not in app_labels(settings.TENANT_APPS):
return False
return None
def switch_schema(task, kwargs, **kw):
""" Switches schema of the task, before it has been run. """
# Lazily load needed functions, as they import django model functions which
# in turn load modules that need settings to be loaded and we can't
# guarantee this module was loaded when the settings were ready.
from tenant_schemas.utils import get_public_schema_name, get_tenant_model
old_schema = (connection.schema_name, connection.include_public_schema)
setattr(task, '_old_schema', old_schema)
# Pop it from the kwargs since tasks don't except the additional kwarg.
# This change is transparent to the system.
schema = kwargs.pop('_schema_name', get_public_schema_name())
# If the schema has not changed, don't do anything.
if connection.schema_name == schema:
return
if connection.schema_name != get_public_schema_name():
connection.set_schema_to_public()
tenant = get_tenant_model().objects.get(schema_name=schema)
connection.set_tenant(tenant, include_public=True)