mirror of https://github.com/gchq/CyberChef.git
70 lines
1.6 KiB
JavaScript
70 lines
1.6 KiB
JavaScript
/**
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* @author Matt C (matt@artemisbot.uk)
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* @copyright Crown Copyright 2016
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* @license Apache-2.0
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*/
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import jpath from "jsonpath";
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import Operation from "../Operation";
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import OperationError from "../errors/OperationError";
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/**
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* JPath expression operation
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*/
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class JPathExpression extends Operation {
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/**
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* JPathExpression constructor
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*/
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constructor() {
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super();
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this.name = "JPath expression";
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this.module = "Code";
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this.description = "Extract information from a JSON object with a JPath query.";
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this.infoURL = "http://goessner.net/articles/JsonPath/";
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this.inputType = "string";
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this.outputType = "string";
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this.args = [
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{
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"name": "Query",
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"type": "string",
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"value": ""
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},
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{
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"name": "Result delimiter",
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"type": "binaryShortString",
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"value": "\\n"
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}
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];
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}
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/**
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* @param {string} input
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* @param {Object[]} args
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* @returns {string}
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*/
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run(input, args) {
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const [query, delimiter] = args;
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let results,
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obj;
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try {
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obj = JSON.parse(input);
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} catch (err) {
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throw new OperationError(`Invalid input JSON: ${err.message}`);
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}
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try {
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results = jpath.query(obj, query);
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} catch (err) {
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throw new OperationError(`Invalid JPath expression: ${err.message}`);
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}
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return results.map(result => JSON.stringify(result)).join(delimiter);
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}
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}
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export default JPathExpression;
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