def socket_post_save_handler(sender, instance, created, using, **kwargs):
if instance.is_live:
if instance.has_changed('zip_file') and instance.old_value('zip_file'):
instance.old_value('zip_file').delete(save=False)
if instance.status == Socket.STATUSES.CHECKING:
add_post_transaction_success_operation(SocketCheckerTask.delay,
using=using,
instance_pk=get_current_instance().pk)
elif instance.status == Socket.STATUSES.PROCESSING:
add_post_transaction_success_operation(SocketProcessorTask.delay,
using=using,
instance_pk=get_current_instance().pk)
def hosting_post_save_handler(sender, instance, created, using, **kwargs):
syncano_instance_pk = get_current_instance().pk
new_cname = Hosting.find_cname(instance.domains)
if created:
old_cname = None
else:
old_cname = Hosting.find_cname(instance.old_value('domains'))
if new_cname != old_cname:
with transaction.atomic():
syncano_instance = Instance.objects.select_for_update().get(pk=syncano_instance_pk)
if new_cname is not None:
add_domains_to_syncano_instance(syncano_instance, domains=[new_cname])
if old_cname is not None:
remove_domains_from_syncano_instance(syncano_instance, domains=[old_cname])
syncano_instance.save(update_fields=['domains'])
if instance.ssl_status == Hosting.SSL_STATUSES.CHECKING:
add_post_transaction_success_operation(
HostingAddSecureCustomDomainTask.delay,
using=using,
hosting_pk=instance.id,
domain=instance.get_cname(),
instance_pk=syncano_instance_pk,
)
def process(self):
name = self.dependency['name']
# user profile case
if name == 'user':
name = 'user_profile'
self.name = name
try:
klass = Klass.objects.select_for_update().get(name=name)
if klass.is_locked:
raise SocketLockedClass(name)
except Klass.DoesNotExist:
# Create fresh class
with Instance.lock(get_current_instance().pk):
klass = self.create_class()
else:
klass = self.update_class(klass)
# Save class
self.add_installed(klass)
return {
name.lower():
{f['name']: f['type']
for f in self.dependency['schema']}
}
def create_schedule(self):
# Create a fresh schedule if it does not exist yet
try:
script = self.get_script()
except CodeBox.DoesNotExist:
script = self.create_script()
schedule_limit = AdminLimit.get_for_admin(
get_current_instance().owner_id).get_schedules_count()
if CodeBoxSchedule.objects.count() >= schedule_limit:
raise ScheduleCountExceeded(schedule_limit)
schedule_data = {
'label':
'Script dependency of {}'.format(self.socket.name),
'description':
'Schedule created as a dependency of '
'socket: "{}".'.format(self.socket.name),
'script':
script.pk,
}
schedule_data.update(self.schedule_params)
schedule_serializer = CodeBoxScheduleSerializer(data=schedule_data)
schedule_serializer.is_valid(raise_exception=True)
return schedule_serializer.save(
socket=self.socket,
codebox=script,
event_handler=self.dependency['handler_name'])
def validate_domains(self, value):
value_set = set(value)
only_domains = [
v for v in value_set if re.match(VALID_DOMAIN_REGEX, v)
]
# Only 1 domain per hosting allowed so that we can process SSL properly
if len(only_domains) > 1:
raise OnlyOneDomainAllowed()
# this checks the global domains;
if Instance.objects.exclude(pk=get_current_instance().pk).filter(
domains__overlap=only_domains).exists():
raise DomainAlreadyUsed()
# prevent for creating hosting with the same domain;
# but allow to update the same object with the same domains;
validate_queryset = Hosting.objects.all()
# update case; if empty - create case;
current_hosting = self.instance
if current_hosting:
validate_queryset = validate_queryset.exclude(
pk=current_hosting.pk)
# use a all values here - this will check if no two hosting objects exists with the same instance name
# and suffix combination;
if validate_queryset.filter(domains__overlap=list(value_set)).exists():
raise DomainAlreadyUsed()
return list(value_set)
def indicator_post_save_handler(sender, instance, created, **kwargs):
tenant = get_current_instance() or instance.instance
if not created and instance.type == InstanceIndicator.TYPES.STORAGE_SIZE:
storage_limit = AdminLimit.get_for_admin(tenant.owner_id).get_storage()
if instance.value > instance.old_value('value') and instance.value > storage_limit >= 0:
raise StorageLimitReached()
def after_lock_released(self, args, kwargs):
if get_current_instance() and self.model_class.objects.filter(
**self.query).exists():
options = {}
if self.countdown is not None:
options['countdown'] = self.countdown
self.apply_async(args, kwargs, **options)
def instance_context(instance):
previous_instance = get_current_instance()
try:
set_current_instance(instance)
yield
finally:
set_current_instance(previous_instance)
def create_class(self):
klass_limit = AdminLimit.get_for_admin(get_current_instance().owner_id).get_classes_count()
if Klass.objects.count() >= klass_limit:
raise KlassCountExceeded(klass_limit)
klass_data = {'name': self.name,
'description': 'Class created as a dependency of '
'socket: "{}".'.format(self.socket.name, self.name),
'schema': self.dependency['schema'],
'ignored_target_classes': self.ignored_class_names(),
'metadata': self.dependency['metadata']}
# Run validation first
serializer = KlassSerializer(data=klass_data)
serializer.is_valid(raise_exception=True)
fields = {}
field_props = {}
for field in self.dependency['schema']:
fields[field['name']] = [self.socket.pk]
field_props[field['name']] = {f_prop: [self.socket.pk] for f_prop, val in field.items() if val is True}
refs = {
'managed_by': [self.socket.pk],
'fields': fields,
'props': field_props,
}
return serializer.save(refs=refs)
def upload_custom_socketenvironment_file_to(instance, filename):
_, ext = os.path.splitext(filename)
return '{instance_prefix}/env/{filename}{ext}'.format(
instance_prefix=get_current_instance().get_storage_prefix(),
filename=generate_key(),
ext=ext.lower()[:16] # extensions longer than 16 would be kinda strange
)
def _get_lookup_key(self, key, type_, target):
schema = '0'
if type_ == 'model':
app_label = target._meta.app_label
lookup_name = target._meta.db_table
if apps.get_app_config(app_label).name in settings.TENANT_APPS:
from apps.instances.helpers import get_current_instance
instance = get_current_instance()
if instance is None:
raise target.DoesNotExist()
schema = str(instance.id)
return lookup_name, schema
lookup_name = key
if key is None:
lookup_name = target.__module__
if hasattr(target, '__self__') and target.__self__ and hasattr(
target.__self__, '__name__'):
lookup_name += '.%s' % target.__self__.__name__
lookup_name += '.%s' % target.__name__
if self.version_key is not None:
lookup_name += ':%s' % self.version_key
return lookup_name, schema
def add_indicators(apps, schema_editor):
APNSDevice = apps.get_model('push_notifications.APNSDevice')
instance = get_current_instance()
InstanceIndicator.objects.update_or_create(
type=InstanceIndicator.TYPES.APNS_DEVICES_COUNT,
instance=instance,
defaults={'value': APNSDevice.objects.filter(is_active=True).count()})
def upload_hosting_file_to(instance, filename):
_, ext = os.path.splitext(filename)
return '{instance_prefix}/{hosting_id}h/{filename}{ext}'.format(
instance_prefix=get_current_instance().get_storage_prefix(),
hosting_id=instance.hosting_id,
filename=generate_key(),
ext=ext.lower()[:16] # extensions longer than 16 would be kinda strange
)
def emit(self, request, *args, **kwargs):
serializer = self.get_serializer(data=request.data)
serializer.is_valid(raise_exception=True)
event = {'source': 'custom'}
signal = serializer.data['signal']
payload = serializer.data['payload']
if Trigger.match(get_current_instance().pk, event, signal):
HandleTriggerEventTask.delay(instance_pk=get_current_instance().pk,
event=event,
signal=signal,
data=payload)
ret = status.HTTP_202_ACCEPTED
else:
ret = status.HTTP_204_NO_CONTENT
return Response(status=ret)
def get_storage_path_for_key(cls, key, path=''):
if path:
file_root, file_ext = os.path.splitext(path)
path = '{}_{}{}'.format(file_root, get_random_string(7), file_ext)
return '{instance_prefix}/sockets/{socket_key}/{path}'.format(
instance_prefix=get_current_instance().get_storage_prefix(),
socket_key=key,
path=path)
def _get_current_db(self):
instance = get_current_instance()
if instance:
db = get_instance_db(instance)
# Check if we are in atomic block for that connection
if connections[db].in_atomic_block:
return db
return DEFAULT_DB_ALIAS
def get_file_cached(cls, hosting_id, path):
def _get_file():
try:
return cls.objects.filter(path=path, hosting=hosting_id).get()
except cls.DoesNotExist:
return 'DoesNotExist'
return Cached(_get_file,
key='Hosting.GetFile',
version_key='i=%d;h=%d;p=%s' % (get_current_instance().id, hosting_id, path))
def save_object(self, obj):
# Install socket(s) in database
db = get_instance_db(get_current_instance())
with transaction.atomic(db):
# Process in reverse order so that we process in FIFO
for socket, dependencies, is_partial in self.socket_install['data'][::-1]:
socket.zip_file = None
if socket.id is None:
socket.save()
self.install_socket(socket, dependencies, partial=is_partial)
super().save_object(socket)
def update_instance_storage_indicator(change):
if not change:
return
instance = get_current_instance()
indicator_type = InstanceIndicator.TYPES.STORAGE_SIZE
# Get it first before update as we need to validate limits in post_save signal
with transaction.atomic():
indicator = InstanceIndicator.objects.filter(instance=instance, type=indicator_type).select_for_update().get()
indicator.value += change
indicator.save()
def livemodel_post_soft_delete_handler(sender, instance, using, **kwargs):
sender_meta = sender._meta
instance_pk = None
if is_model_in_tenant_apps(sender):
instance_pk = get_current_instance().pk
# queue actual cleanup job
add_post_transaction_success_operation(DeleteLiveObjectTask.delay,
using=using,
model_class_name='%s.%s' % (sender_meta.app_label, sender_meta.model_name),
object_pk=instance.pk,
instance_pk=instance_pk)
def process_object(self, socket, **kwargs):
if socket.install_url and not socket.zip_file:
self.download_socket_zip(socket)
self.socket_install = {
'endpoints_count': 0,
'dependencies_count': 0,
'data': []
}
is_trusted = Cached(Admin, kwargs={'id': get_current_instance().owner_id}).get().is_trusted
dependencies, is_partial = self.importer(socket, is_trusted=is_trusted).process()
self.add_socket_for_installation(socket, dependencies, is_partial)
def process(self):
self.schedule_params = self.create_schedule_params()
try:
schedule = CodeBoxSchedule.objects.filter(socket=self.socket,
**self.schedule_params).select_related('codebox').get()
except CodeBoxSchedule.DoesNotExist:
with Instance.lock(get_current_instance().pk):
schedule = self.create_schedule()
else:
schedule = self.update_schedule(schedule)
schedule.schedule_next()
self.add_installed(schedule)
return self.process_handler(schedule)
def update_class(self, klass):
schema = copy.deepcopy(klass.schema)
refs = klass.refs
socket_pk = self.socket.pk
# Validate schema first
KlassSerializer(instance=klass,
data={
'schema': self.dependency['schema'],
'ignored_target_classes':
self.ignored_class_names()
},
partial=True).is_valid(raise_exception=True)
# Add field references.
ref_fields = refs.get('fields', {})
ref_props = refs.get('props', {})
refs['fields'] = ref_fields
refs['props'] = ref_props
if 'managed_by' in refs and socket_pk not in refs['managed_by']:
refs['managed_by'].append(socket_pk)
# Check if klass is compatible
dep_fields = {f['name']: f for f in self.dependency['schema']}
self.merge_class_schema(schema, dep_fields, ref_fields, ref_props)
# Cleanup klass references.
klass.schema = schema
cleanup_data_klass_ref(klass,
using=get_instance_db(get_current_instance()))
metadata = klass.metadata
metadata.update(self.dependency['metadata'])
# Run last validation
serializer = KlassSerializer(instance=klass,
data={
'schema':
klass.schema,
'ignored_target_classes':
self.ignored_class_names(),
'metadata':
metadata,
},
partial=True)
serializer.is_valid(raise_exception=True)
return serializer.save(refs=refs)
def launch_trigger(instance, serializer_class, event, signal, changes=None, **context):
instance_pk = get_current_instance().pk
if Trigger.match(instance_pk, event, signal):
data = serializer_class(instance, excluded_fields=('links',), context=context).data
if changes is not None:
changes = changes.intersection(set(data.keys()))
add_post_transaction_success_operation(HandleTriggerEventTask.delay,
using=router.db_for_write(instance.__class__),
instance_pk=instance_pk,
event=event,
signal=signal,
data=data,
changes=list(changes) if changes else None)
def cleanup_data_klass_ref(klass, save=False, using=None):
# If klass is no longer managed by any socket, delete it.
if 'managed_by' in klass.refs and not klass.refs['managed_by']:
if klass.is_locked:
add_post_transaction_success_operation(
KlassOperationQueue.delay,
using=using,
instance_pk=get_current_instance().pk,
klass_pk=klass.pk,
op='delete')
else:
klass.delete()
return
if klass.is_locked:
add_post_transaction_success_operation(
KlassOperationQueue.delay,
using=using,
instance_pk=get_current_instance().pk,
klass_pk=klass.pk,
op='cleanup_refs')
return
klass.cleanup_refs(save=save)
def cleanup(cls, socket, installed_objects):
# Skip cleanup for new sockets.
if socket.pk is None:
return
installed_klasses = set(
[klass.name for klass in installed_objects[Klass.__name__]])
# Clean up class that are no longer referenced.
for class_name, field_dict in socket.old_value('installed').get(
cls.yaml_type, {}).items():
if class_name not in installed_klasses:
unref_data_klass(socket.pk,
class_name,
field_dict,
using=get_instance_db(get_current_instance()))
def db_for_model(self,
model,
for_read=False,
instance=None,
context=None,
**hints):
if model is self.TENANT_MODEL:
if context == 'new':
return INSTANCES_NEW_DB_ALIAS
if context == 'contents':
# As instance objects are cached, temporarily use getattr so it works
# with objects that miss that field
return instance.database or INSTANCES_DB_ALIAS
elif is_model_in_tenant_apps(model):
return get_instance_db(get_current_instance(), for_read=for_read)
return DEFAULT_DB_ALIAS
def authenticate(self, request):
api_key = self.get_api_key(request)
admin = getattr(request._request, 'user', AnonymousAdmin())
auth = getattr(request._request, 'auth', None)
auth_user = getattr(request._request, 'auth_user', None)
staff_user = getattr(request._request, 'staff_user', None)
instance = getattr(request._request, 'instance', None)
# Initialize default auth_user first so that permission classes are sane
request.auth_user = None
request._request.auth_user = None
if api_key:
if not API_KEY_REGEX.match(api_key):
# Verify if we're dealing with a token
admin = self.get_admin_from_token(api_key, instance)
if not admin:
raise exceptions.AuthenticationFailed('No such API Key.')
else:
if check_parity(api_key):
admin = self.get_admin_by_key(api_key)
else:
auth = self.get_auth(api_key, instance)
if auth and get_current_instance():
auth_user = self.get_auth_user(request)
staff_key = self.get_staff_key(request)
if staff_key and API_KEY_REGEX.match(staff_key) and check_parity(
staff_key):
staff_user = self.get_admin_by_key(staff_key)
staff_user = staff_user if staff_user.is_staff else None
# Save auth user manually
request.auth_user = auth_user
request.staff_user = staff_user
# Save user inside wrapped request so that middlewares also see it
request._request.user = admin
request._request.auth = auth
request._request.auth_user = auth_user
request._request.staff_user = staff_user
return admin, auth
def _format_key(cls, key, **kwargs):
if cls.tenant_model and 'instance' not in kwargs:
kwargs['instance'] = get_current_instance()
return key.format(**kwargs)
def klass_post_save_handler(sender, instance, using, **kwargs):
if instance.index_changes:
add_post_transaction_success_operation(IndexKlassTask.delay,
using=using,
instance_pk=get_current_instance().pk)
