mirror of
https://github.com/bigchaindb/js-bigchaindb-driver.git
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60 lines
2.3 KiB
JavaScript
60 lines
2.3 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = ccJsonLoad;
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var _bs = require('bs58');
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var _bs2 = _interopRequireDefault(_bs);
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var _fiveBellsCondition = require('five-bells-condition');
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var _fiveBellsCondition2 = _interopRequireDefault(_fiveBellsCondition);
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var _buffer = require('buffer');
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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* @public
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* Loads a crypto-condition class (Fulfillment or Condition) from a BigchainDB JSON object
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* @param {object} conditionJson
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* @returns {cc.Condition} Ed25519 Condition (that will need to wrapped in an Output)
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*/
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function ccJsonLoad(conditionJson) {
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if ('hash' in conditionJson) {
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var condition = new _fiveBellsCondition2.default.Condition();
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condition.type = conditionJson.type_id;
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condition.bitmask = conditionJson.bitmask;
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condition.hash = new _buffer.Buffer(_bs2.default.decode(conditionJson.hash));
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condition.maxFulfillmentLength = parseInt(conditionJson.max_fulfillment_length, 10);
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return condition;
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} else {
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var fulfillment = void 0;
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if (conditionJson.type_id === 2) {
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fulfillment = new _fiveBellsCondition2.default.ThresholdSha256();
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fulfillment.threshold = conditionJson.threshold;
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conditionJson.subfulfillments.forEach(function (subfulfillment) {
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subfulfillment = ccJsonLoad(subfulfillment);
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if ('getConditionUri' in subfulfillment) fulfillment.addSubfulfillment(subfulfillment);else if ('serializeUri' in subfulfillment) fulfillment.addSubcondition(subfulfillment);
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});
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}
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if (conditionJson.type_id === 0) {
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fulfillment = new _fiveBellsCondition2.default.PreimageSha256();
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fulfillment.preimage = new _buffer.Buffer(conditionJson.preimage);
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}
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if (conditionJson.type_id === 4) {
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fulfillment = new _fiveBellsCondition2.default.Ed25519();
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fulfillment.publicKey = new _buffer.Buffer(_bs2.default.decode(conditionJson.public_key));
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if (conditionJson.signature) fulfillment.signature = new _buffer.Buffer(_bs2.default.decode(conditionJson.signature));
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}
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return fulfillment;
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}
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}
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module.exports = exports['default']; |