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87c3e831a8
* Using JS to customize spatial viz and tooltips * Add missing deck_multi.png * Improve GeoJSON layer with JS support and extra controls * Addressing comments
28 lines
959 B
JavaScript
28 lines
959 B
JavaScript
// 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 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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};
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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(function (key) {
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sandbox[key] = sandboxContext[key];
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});
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vm.runInNewContext(codeToEval, sandbox, opts);
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return sandbox[resultKey];
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}
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