openapi2apigeeck2/lib/policy_templates/cors/cors.js

A tool that converts openapi yaml file to Apigee API Proxy Bundle

/**
Copyright 2022 Google LLC
 
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
 
    https://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.
*/
 
var builder = require('xmlbuilder')
var random = require('../../util/random.js')
 
module.exports = {
  corsTemplate: corsTemplate,
  corsGenTemplate: corsGenTemplate
}
 
function corsTemplate (options) {
  var aysnc = options.async || 'false'
  var continueOnError = options.continueOnError || 'false'
  var enabled = options.enabled || 'true'
  var name = options.name || 'Quota-' + random.randomText()
  var displayName = options.displayName || name
  var faultRules
  var properties
  var headers = options.headers || {
    'Access-Control-Allow-Origin':
     { default: '*' },
    'Access-Control-Allow-Credentials':
     { default: false },
    'Access-Control-Allow-Headers':
     { default: 'Content-Type, X-Powered-By' },
    'Access-Control-Allow-Methods':
     { default: 'GET, HEAD' },
    'Access-Control-Max-Age':
     { default: 86400 }
  }
  var msg = builder.create('CORS')
  msg.att('async', aysnc)
  msg.att('continueOnError', continueOnError)
  msg.att('enabled', enabled)
  msg.att('name', name)
  msg.ele('DisplayName', {}, displayName)
 
  msg.ele('AllowOrigins', {}, "{request.header.origin}")
  msg.ele('AllowMethods',{},'GET, PUT, POST, DELETE, OPTIONS')
  msg.ele('AllowHeaders',{},'*')
  msg.ele('ExposeHeaders',{},'*')
  msg.ele('MaxAge',{},'3628800')
  msg.ele('AllowCredentials',{},'true')
  msg.ele('GeneratePreflightResponse',{},'true')
  msg.ele('IgnoreUnresolvedVariables',{},'true')
 
  var xmlString = msg.end({ pretty: true, indent: '  ', newline: '\n' })
  return xmlString
}
 
function corsGenTemplate (options, name) {
  var templateOptions = options
  templateOptions.count = options.allow
  templateOptions.name = name
 
  return corsTemplate(templateOptions)
}