49 lines
1.7 KiB
JavaScript
49 lines
1.7 KiB
JavaScript
import base58 from 'bs58';
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import cc from 'five-bells-condition';
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import { Buffer } from 'buffer';
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/**
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*
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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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export default function ccJsonLoad(conditionJson) {
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if ('hash' in conditionJson) {
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let condition = new cc.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(base58.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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let fulfillment;
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if (conditionJson.type_id === 2) {
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fulfillment = new cc.ThresholdSha256();
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fulfillment.threshold = conditionJson.threshold;
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conditionJson.subfulfillments.forEach((subfulfillment) => {
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subfulfillment = ccJsonLoad(subfulfillment);
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if ('getConditionUri' in subfulfillment)
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fulfillment.addSubfulfillment(subfulfillment);
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else if ('serializeUri' in subfulfillment)
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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 cc.PreimageSha256();
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fulfillment.preimage = new Buffer(conditionJson.preimage);
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}
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if (conditionJson.type_id === 4) {
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fulfillment = new cc.Ed25519();
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fulfillment.publicKey = new Buffer(base58.decode(conditionJson.public_key));
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if (conditionJson.signature)
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fulfillment.signature = new Buffer(base58.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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