| -- |
| -- Licensed to the Apache Software Foundation (ASF) under one or more |
| -- contributor license agreements. See the NOTICE file distributed with |
| -- this work for additional information regarding copyright ownership. |
| -- The ASF licenses this file to You 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. |
| -- |
| |
| --- Json schema validation module. |
| -- |
| -- @module core.schema |
| |
| local jsonschema = require('jsonschema') |
| local lrucache = require("apisix.core.lrucache") |
| local cached_validator = lrucache.new({count = 1000, ttl = 0}) |
| local pcall = pcall |
| |
| local _M = { |
| version = 0.3, |
| |
| TYPE_CONSUMER = 1, |
| TYPE_METADATA = 2, |
| } |
| |
| |
| local function create_validator(schema) |
| -- local code = jsonschema.generate_validator_code(schema, opts) |
| -- local file2=io.output("/tmp/2.txt") |
| -- file2:write(code) |
| -- file2:close() |
| local ok, res = pcall(jsonschema.generate_validator, schema) |
| if ok then |
| return res |
| end |
| |
| return nil, res -- error message |
| end |
| |
| local function get_validator(schema) |
| local validator, err = cached_validator(schema, nil, |
| create_validator, schema) |
| |
| if not validator then |
| return nil, err |
| end |
| |
| return validator, nil |
| end |
| |
| function _M.check(schema, json) |
| local validator, err = get_validator(schema) |
| |
| if not validator then |
| return false, err |
| end |
| |
| return validator(json) |
| end |
| |
| _M.valid = get_validator |
| |
| return _M |