53 lines
1.8 KiB
JavaScript
53 lines
1.8 KiB
JavaScript
/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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// A safe alternative to JS's eval
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import vm from 'vm';
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import _ from 'underscore';
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import * as d3array from 'd3-array';
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import * as colors from './colors';
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// Objects exposed here should be treated like a public API
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// if `underscore` had backwards incompatible changes in a future release, we'd
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// have to be careful about bumping the library as those changes could break user charts
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const GLOBAL_CONTEXT = {
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console,
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_,
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colors,
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d3array,
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};
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// Copied/modified from https://github.com/hacksparrow/safe-eval/blob/master/index.js
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export default function sandboxedEval(code, context, opts) {
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const sandbox = {};
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const resultKey = `SAFE_EVAL_${Math.floor(Math.random() * 1000000)}`;
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sandbox[resultKey] = {};
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const codeToEval = `${resultKey}=${code}`;
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const sandboxContext = { ...GLOBAL_CONTEXT, ...context };
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Object.keys(sandboxContext).forEach(key => {
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sandbox[key] = sandboxContext[key];
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});
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try {
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vm.runInNewContext(codeToEval, sandbox, opts);
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return sandbox[resultKey];
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} catch (error) {
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return () => error;
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}
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}
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