e0efd43d24
Partially-Implements: blueprint validation Change-Id: I5d313926c1ab0eddc50d24ff30132e849fb1aa28
61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
# Copyright (c) 2017 NEC, Corp.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, 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 flask import request
|
|
import jsonschema
|
|
|
|
from valence.common import exception
|
|
from valence.validation import schemas
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
def check_input(schema_name):
|
|
def decorated(f):
|
|
@functools.wraps(f)
|
|
def wrapper(*args, **kwargs):
|
|
data = request.get_json()
|
|
LOG.debug("validating input %s with schema %s", data, schema_name)
|
|
schema_validator = Validator(schema_name)
|
|
schema_validator.validate(data)
|
|
return f(*args, **kwargs)
|
|
return wrapper
|
|
return decorated
|
|
|
|
|
|
class Validator(object):
|
|
def __init__(self, name):
|
|
self.name = name
|
|
self.schema = schemas.SCHEMAS.get(name)
|
|
checker = jsonschema.FormatChecker()
|
|
self.validator = jsonschema.Draft4Validator(self.schema,
|
|
format_checker=checker)
|
|
|
|
def validate(self, data):
|
|
try:
|
|
self.validator.validate(data)
|
|
except jsonschema.ValidationError as e:
|
|
if len(e.path) > 0:
|
|
detail = (("Invalid input for field/attribute '%(path)s' "
|
|
"Value: '%(value)s'. %(message)s") %
|
|
{'path': e.path.pop(), 'value': e.instance,
|
|
'message': e.message})
|
|
else:
|
|
detail = e.message
|
|
LOG.exception("Failed to validate the input")
|
|
raise exception.ValidationError(detail=detail)
|