Files
superset2/superset/views/base_api.py
Maxime Beauchemin 315a11dfe2 fix: shut off unneeded endpoints (#8960)
* fix: shut off all uneeded endpoints

We recently added a new feature to FAB allowing to whitelist the needed
endpoints in ModelView and ModelRestApi.

First, we set our base wrapper class to an empty set, forcing each
class inheriting from it to explicitely turn on the endpoints that
Superset intends to use.

Second, we go ModelView by ModelView to whitelist the actual endpoints
used in the app.

Notes:
* as a result a large set of [unneeded] permissions should be cleaned up
* outside of the "private" use of endpoints in the app, people that have
  been using endpoints in their environment for other purposes may
  experience loss of functionality

* Tweaking

* Reduce the amount of endpoints using white lists

* Fix, included needed endpoints for dashboard and druid

* Drying things up

* fixes

* limiting more endpoints

* Read only on some FAB model views

* fixing some tests

* fixes

* Fixing more tests

* Addressing comments

* Drying up route_methods

* further drying

Co-authored-by: Daniel Vaz Gaspar <danielvazgaspar@gmail.com>
2020-01-23 11:25:15 -05:00

337 lines
11 KiB
Python

# Licensed to the Apache Software Foundation (ASF) under one
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# to you under the Apache License, Version 2.0 (the
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#
# http://www.apache.org/licenses/LICENSE-2.0
#
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# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
import functools
import logging
from typing import Dict, Tuple
from flask import request
from flask_appbuilder import ModelRestApi
from flask_appbuilder.api import expose, protect, rison, safe
from flask_appbuilder.models.filters import Filters
from sqlalchemy.exc import SQLAlchemyError
from superset.exceptions import SupersetSecurityException
from superset.views.base import check_ownership
get_related_schema = {
"type": "object",
"properties": {
"page_size": {"type": "integer"},
"page": {"type": "integer"},
"filter": {"type": "string"},
},
}
def check_ownership_and_item_exists(f):
"""
A Decorator that checks if an object exists and is owned by the current user
"""
def wraps(self, pk): # pylint: disable=invalid-name
item = self.datamodel.get(
pk, self._base_filters # pylint: disable=protected-access
)
if not item:
return self.response_404()
try:
check_ownership(item)
except SupersetSecurityException as e:
return self.response(403, message=str(e))
return f(self, item)
return functools.update_wrapper(wraps, f)
class BaseSupersetModelRestApi(ModelRestApi):
"""
Extends FAB's ModelResApi to implement specific superset generic functionality
"""
logger = logging.getLogger(__name__)
method_permission_name = {
"get_list": "list",
"get": "show",
"export": "mulexport",
"post": "add",
"put": "edit",
"delete": "delete",
"bulk_delete": "delete",
"info": "list",
"related": "list",
}
order_rel_fields: Dict[str, Tuple[str, str]] = {}
"""
Impose ordering on related fields query::
order_rel_fields = {
"<RELATED_FIELD>": ("<RELATED_FIELD_FIELD>", "<asc|desc>"),
...
}
""" # pylint: disable=pointless-string-statement
filter_rel_fields_field: Dict[str, str] = {}
"""
Declare the related field field for filtering::
filter_rel_fields_field = {
"<RELATED_FIELD>": "<RELATED_FIELD_FIELD>", "<asc|desc>")
}
""" # pylint: disable=pointless-string-statement
def _get_related_filter(self, datamodel, column_name: str, value: str) -> Filters:
filter_field = self.filter_rel_fields_field.get(column_name)
filters = datamodel.get_filters([filter_field])
if value:
filters.rest_add_filters(
[{"opr": "sw", "col": filter_field, "value": value}]
)
return filters
@expose("/related/<column_name>", methods=["GET"])
@protect()
@safe
@rison(get_related_schema)
def related(self, column_name: str, **kwargs):
"""Get related fields data
---
get:
parameters:
- in: path
schema:
type: string
name: column_name
- in: query
name: q
content:
application/json:
schema:
type: object
properties:
page_size:
type: integer
page:
type: integer
filter:
type: string
responses:
200:
description: Related column data
content:
application/json:
schema:
type: object
properties:
count:
type: integer
result:
type: object
properties:
value:
type: integer
text:
type: string
400:
$ref: '#/components/responses/400'
401:
$ref: '#/components/responses/401'
404:
$ref: '#/components/responses/404'
422:
$ref: '#/components/responses/422'
500:
$ref: '#/components/responses/500'
"""
args = kwargs.get("rison", {})
# handle pagination
page, page_size = self._handle_page_args(args)
try:
datamodel = self.datamodel.get_related_interface(column_name)
except KeyError:
return self.response_404()
page, page_size = self._sanitize_page_args(page, page_size)
# handle ordering
order_field = self.order_rel_fields.get(column_name)
if order_field:
order_column, order_direction = order_field
else:
order_column, order_direction = "", ""
# handle filters
filters = self._get_related_filter(datamodel, column_name, args.get("filter"))
# Make the query
count, values = datamodel.query(
filters, order_column, order_direction, page=page, page_size=page_size
)
# produce response
result = [
{"value": datamodel.get_pk_value(value), "text": str(value)}
for value in values
]
return self.response(200, count=count, result=result)
class BaseOwnedModelRestApi(BaseSupersetModelRestApi):
@expose("/<pk>", methods=["PUT"])
@protect()
@check_ownership_and_item_exists
@safe
def put(self, item): # pylint: disable=arguments-differ
"""Changes a owned Model
---
put:
parameters:
- in: path
schema:
type: integer
name: pk
requestBody:
description: Model schema
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/{{self.__class__.__name__}}.put'
responses:
200:
description: Item changed
content:
application/json:
schema:
type: object
properties:
result:
$ref: '#/components/schemas/{{self.__class__.__name__}}.put'
400:
$ref: '#/components/responses/400'
401:
$ref: '#/components/responses/401'
403:
$ref: '#/components/responses/401'
404:
$ref: '#/components/responses/404'
422:
$ref: '#/components/responses/422'
500:
$ref: '#/components/responses/500'
"""
if not request.is_json:
self.response_400(message="Request is not JSON")
item = self.edit_model_schema.load(request.json, instance=item)
if item.errors:
return self.response_422(message=item.errors)
try:
self.datamodel.edit(item.data, raise_exception=True)
return self.response(
200, result=self.edit_model_schema.dump(item.data, many=False).data
)
except SQLAlchemyError as e:
self.logger.error(f"Error updating model {self.__class__.__name__}: {e}")
return self.response_422(message=str(e))
@expose("/", methods=["POST"])
@protect()
@safe
def post(self):
"""Creates a new owned Model
---
post:
requestBody:
description: Model schema
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/{{self.__class__.__name__}}.post'
responses:
201:
description: Model added
content:
application/json:
schema:
type: object
properties:
id:
type: string
result:
$ref: '#/components/schemas/{{self.__class__.__name__}}.post'
400:
$ref: '#/components/responses/400'
401:
$ref: '#/components/responses/401'
422:
$ref: '#/components/responses/422'
500:
$ref: '#/components/responses/500'
"""
if not request.is_json:
return self.response_400(message="Request is not JSON")
item = self.add_model_schema.load(request.json)
# This validates custom Schema with custom validations
if item.errors:
return self.response_422(message=item.errors)
try:
self.datamodel.add(item.data, raise_exception=True)
return self.response(
201,
result=self.add_model_schema.dump(item.data, many=False).data,
id=item.data.id,
)
except SQLAlchemyError as e:
self.logger.error(f"Error creating model {self.__class__.__name__}: {e}")
return self.response_422(message=str(e))
@expose("/<pk>", methods=["DELETE"])
@protect()
@check_ownership_and_item_exists
@safe
def delete(self, item): # pylint: disable=arguments-differ
"""Deletes owned Model
---
delete:
parameters:
- in: path
schema:
type: integer
name: pk
responses:
200:
description: Model delete
content:
application/json:
schema:
type: object
properties:
message:
type: string
401:
$ref: '#/components/responses/401'
403:
$ref: '#/components/responses/401'
404:
$ref: '#/components/responses/404'
422:
$ref: '#/components/responses/422'
500:
$ref: '#/components/responses/500'
"""
try:
self.datamodel.delete(item, raise_exception=True)
return self.response(200, message="OK")
except SQLAlchemyError as e:
self.logger.error(f"Error deleting model {self.__class__.__name__}: {e}")
return self.response_422(message=str(e))