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matrix-spec/api/check_examples.py

158 lines
5.0 KiB
Python

#! /usr/bin/env python
#
# Copyright 2016 OpenMarket Ltd
#
# 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 sys
import json
import os
def import_error(module, package, debian, error):
sys.stderr.write((
"Error importing %(module)s: %(error)r\n"
"To install %(module)s run:\n"
" pip install %(package)s\n"
"or on Debian run:\n"
" sudo apt-get install python-%(debian)s\n"
) % locals())
if __name__ == '__main__':
sys.exit(1)
try:
import jsonschema
except ImportError as e:
import_error("jsonschema", "jsonschema", "jsonschema", e)
raise
try:
import yaml
except ImportError as e:
import_error("yaml", "PyYAML", "yaml", e)
raise
def check_schema(filepath, example, schema):
example = resolve_references(filepath, example)
schema = resolve_references(filepath, schema)
resolver = jsonschema.RefResolver(filepath, schema, handlers={"file": load_file})
jsonschema.validate(example, schema, resolver=resolver)
def check_parameter(filepath, request, parameter):
schema = parameter.get("schema")
example = schema.get('example')
if example and schema:
try:
print("Checking request schema for: %r %r" % (
filepath, request
))
check_schema(filepath, example, schema)
except Exception as e:
raise ValueError("Error validating JSON schema for %r" % (
request
), e)
def check_response(filepath, request, code, response):
example = response.get('examples', {}).get('application/json')
schema = response.get('schema')
if example and schema:
try:
print ("Checking response schema for: %r %r %r" % (
filepath, request, code
))
check_schema(filepath, example, schema)
except jsonschema.SchemaError as error:
for suberror in sorted(error.context, key=lambda e: e.schema_path):
print(list(suberror.schema_path), suberror.message, sep=", ")
raise ValueError("Error validating JSON schema for %r %r" % (
request, code
), e)
except Exception as e:
raise ValueError("Error validating JSON schema for %r %r" % (
request, code
), e)
def check_swagger_file(filepath):
with open(filepath) as f:
swagger = yaml.load(f)
for path, path_api in swagger.get('paths', {}).items():
for method, request_api in path_api.items():
request = "%s %s" % (method.upper(), path)
for parameter in request_api.get('parameters', ()):
if parameter['in'] == 'body':
check_parameter(filepath, request, parameter)
try:
responses = request_api['responses']
except KeyError:
raise ValueError("No responses for %r" % (request,))
for code, response in responses.items():
check_response(filepath, request, code, response)
def resolve_references(path, schema):
if isinstance(schema, dict):
# do $ref first
if '$ref' in schema:
value = schema['$ref']
path = os.path.abspath(os.path.join(os.path.dirname(path), value))
ref = load_file("file://" + path)
result = resolve_references(path, ref)
del schema['$ref']
else:
result = {}
for key, value in schema.items():
result[key] = resolve_references(path, value)
return result
elif isinstance(schema, list):
return [resolve_references(path, value) for value in schema]
else:
return schema
def load_file(path):
print("Loading reference: %s" % path)
if not path.startswith("file://"):
raise Exception("Bad ref: %s" % (path,))
path = path[len("file://"):]
with open(path, "r") as f:
if path.endswith(".json"):
return json.load(f)
else:
# We have to assume it's YAML because some of the YAML examples
# do not have file extensions.
return yaml.load(f)
if __name__ == '__main__':
paths = sys.argv[1:]
if not paths:
paths = []
for (root, dirs, files) in os.walk(os.curdir):
for filename in files:
if filename.endswith(".yaml"):
paths.append(os.path.join(root, filename))
for path in paths:
try:
check_swagger_file(path)
except Exception as e:
raise ValueError("Error checking file %r" % (path,), e)