bedrock-validation/schemas/linkedDataSignature.js

/*!
 * Copyright (c) 2012-2018 Digital Bazaar, Inc. All rights reserved.
 */
const bedrock = require('bedrock');

const w3cDateTime = require('./w3cDateTime');
const identifier = require('./identifier');

const signature = {
  title: 'Linked Data Signature',
  description: 'A Linked Data digital signature.',
  type: 'object',
  properties: {
    id: identifier(),
    type: {
      title: 'Linked Data Signature Type',
      type: 'string',
      enum: ['LinkedDataSignature2015', 'LinkedDataSignature2016']
    },
    creator: identifier(),
    created: w3cDateTime(),
    signatureValue: {
      title: 'Digital Signature Value',
      description: 'The Base64 encoding of the result of the signature ' +
        'algorithm.',
      type: 'string'
    },
  },
  // NOTE: id is not required
  required: ['type', 'creator', 'created', 'signatureValue']
};

const schema = {
  title: 'Linked Data Signatures',
  anyOf: [{
    type: 'array',
    items: signature,
    minItems: 1,
  }, signature]
};

module.exports = extend => {
  if(extend) {
    return bedrock.util.extend(true, bedrock.util.clone(schema), extend);
  }
  return schema;
};