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27 lines
962 B
27 lines
962 B
import {HttpsProxyAgent} from "https-proxy-agent";
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import {HttpProxyAgent} from "http-proxy-agent";
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import log from 'app/server/lib/log';
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export function proxyAgent(requestUrl: URL): HttpProxyAgent | HttpsProxyAgent | undefined {
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const proxy = process.env.GRIST_HTTPS_PROXY;
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if (!proxy) {
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return undefined;
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}
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const ProxyAgent = requestUrl.protocol === "https:" ? HttpsProxyAgent : HttpProxyAgent;
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const agent = new ProxyAgent(proxy);
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// Wrap the main method of ProxyAgent into a wrapper that logs errors.
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const callback = agent.callback;
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agent.callback = async function () {
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try {
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return await callback.apply(this, arguments as any);
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} catch (e) {
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// Include info helpful for diagnosing issues (but not the potentially sensitive full requestUrl).
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log.rawWarn(`ProxyAgent error ${e}`,
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{proxy, reqProtocol: requestUrl.protocol, requestOrigin: requestUrl.origin});
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throw e;
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}
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};
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return agent;
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}
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