Function createSandbox

Extension/src/Utility/Sandbox/sandbox.ts:14–37

()

 * Creates a reusable safe-eval sandbox to execute code in.
 */
export function createSandbox(): <T>(code: string, context?: any) => T {
    const sandbox = createContext({});
    return (code: string, context?: any) => {
        const response = `SAFE_EVAL_${Math.floor(Math.random() * 1000000)}`;
        sandbox[response] = {};
        if (context) {
            Object.keys(context).forEach((key) => sandbox[key] = context[key]);
            runInContext(
                `try {  ${response} = ${code} } catch (e) { ${response} = undefined }`,
                sandbox
            );
            for (const key of Object.keys(context)) {
                delete sandbox[key];
            }
        } else {
            try {
                runInContext(`${response} = ${code}`, sandbox);
            } catch {
                sandbox[response] = undefined;
            }
        }
        return sandbox[response];
    };
}

export const safeEval = createSandbox();