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utils cleanup, initial static generation
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commit
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86 changed files with 279 additions and 261 deletions
55
src/utils/proxy/api-helpers.js
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55
src/utils/proxy/api-helpers.js
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export function formatApiCall(url, args) {
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const find = /\{.*?\}/g;
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const replace = (match) => {
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const key = match.replace(/\{|\}/g, "");
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return args[key];
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};
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return url.replace(find, replace);
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}
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function getURLSearchParams(widget, endpoint) {
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const params = new URLSearchParams({
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type: widget.type,
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group: widget.service_group,
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service: widget.service_name,
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endpoint,
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});
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return params;
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}
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export function formatProxyUrlWithSegments(widget, endpoint, segments) {
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const params = getURLSearchParams(widget, endpoint);
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if (segments) {
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params.append("segments", JSON.stringify(segments));
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}
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return `/api/services/proxy?${params.toString()}`;
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}
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export function formatProxyUrl(widget, endpoint, queryParams) {
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const params = getURLSearchParams(widget, endpoint);
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if (queryParams) {
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params.append("query", JSON.stringify(queryParams));
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}
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return `/api/services/proxy?${params.toString()}`;
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}
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export function asJson(data) {
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if (data?.length > 0) {
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const json = JSON.parse(data.toString());
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return json;
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}
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return data;
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}
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export function jsonArrayTransform(data, transform) {
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const json = asJson(data);
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if (json instanceof Array) {
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return transform(json);
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}
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return json;
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}
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export function jsonArrayFilter(data, filter) {
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return jsonArrayTransform(data, (items) => items.filter(filter));
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}
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13
src/utils/proxy/cached-fetch.js
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src/utils/proxy/cached-fetch.js
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import cache from "memory-cache";
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export default async function cachedFetch(url, duration) {
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const cached = cache.get(url);
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if (cached) {
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return cached;
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}
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const data = await fetch(url).then((res) => res.json());
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cache.put(url, data, duration * 1000 * 60);
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return data;
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}
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34
src/utils/proxy/cookie-jar.js
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34
src/utils/proxy/cookie-jar.js
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/* eslint-disable no-param-reassign */
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import { Cookie, CookieJar } from 'tough-cookie';
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const cookieJar = new CookieJar();
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export function setCookieHeader(url, params) {
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// add cookie header, if we have one in the jar
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const existingCookie = cookieJar.getCookieStringSync(url.toString());
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if (existingCookie) {
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params.headers = params.headers ?? {};
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params.headers.Cookie = existingCookie;
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}
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}
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export function addCookieToJar(url, headers) {
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let cookieHeader = headers['set-cookie'];
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if (headers instanceof Headers) {
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cookieHeader = headers.get('set-cookie');
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}
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if (!cookieHeader || cookieHeader.length === 0) return;
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let cookies = null;
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if (cookieHeader instanceof Array) {
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cookies = cookieHeader.map(Cookie.parse);
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}
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else {
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cookies = [Cookie.parse(cookieHeader)];
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}
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for (let i = 0; i < cookies.length; i += 1) {
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cookieJar.setCookieSync(cookies[i], url.toString());
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}
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}
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58
src/utils/proxy/handlers/credentialed.js
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58
src/utils/proxy/handlers/credentialed.js
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import getServiceWidget from "utils/service-helpers";
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import { formatApiCall } from "utils/proxy/api-helpers";
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import { httpProxy } from "utils/proxy/http";
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import createLogger from "utils/logger";
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import widgets from "widgets/widgets";
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const logger = createLogger("credentialedProxyHandler");
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export default async function credentialedProxyHandler(req, res) {
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const { group, service, endpoint } = req.query;
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if (group && service) {
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const widget = await getServiceWidget(group, service);
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if (!widgets?.[widget.type]?.api) {
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return res.status(403).json({ error: "Service does not support API calls" });
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}
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if (widget) {
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const url = new URL(formatApiCall(widgets[widget.type].api, { endpoint, ...widget }));
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const headers = {
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"Content-Type": "application/json",
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};
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if (widget.type === "coinmarketcap") {
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headers["X-CMC_PRO_API_KEY"] = `${widget.key}`;
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} else if (widget.type === "gotify") {
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headers["X-gotify-Key"] = `${widget.key}`;
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} else if (widget.type === "authentik") {
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headers.Authorization = `Bearer ${widget.key}`;
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} else {
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headers["X-API-Key"] = `${widget.key}`;
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}
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const [status, contentType, data] = await httpProxy(url, {
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method: req.method,
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withCredentials: true,
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credentials: "include",
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headers,
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});
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if (status === 204 || status === 304) {
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return res.status(status).end();
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}
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if (status >= 400) {
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logger.debug("HTTP Error %d calling %s//%s%s...", status, url.protocol, url.hostname, url.pathname);
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}
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if (contentType) res.setHeader("Content-Type", contentType);
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return res.status(status).send(data);
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}
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}
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logger.debug("Invalid or missing proxy service type '%s' in group '%s'", service, group);
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return res.status(400).json({ error: "Invalid proxy service type" });
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}
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55
src/utils/proxy/handlers/generic.js
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55
src/utils/proxy/handlers/generic.js
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import getServiceWidget from "utils/service-helpers";
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import { formatApiCall } from "utils/proxy/api-helpers";
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import { httpProxy } from "utils/proxy/http";
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import createLogger from "utils/logger";
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import widgets from "widgets/widgets";
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const logger = createLogger("genericProxyHandler");
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export default async function genericProxyHandler(req, res, map) {
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const { group, service, endpoint } = req.query;
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if (group && service) {
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const widget = await getServiceWidget(group, service);
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if (!widgets?.[widget.type]?.api) {
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return res.status(403).json({ error: "Service does not support API calls" });
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}
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if (widget) {
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const url = new URL(formatApiCall(widgets[widget.type].api, { endpoint, ...widget }));
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let headers;
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if (widget.username && widget.password) {
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headers = {
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Authorization: `Basic ${Buffer.from(`${widget.username}:${widget.password}`).toString("base64")}`,
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};
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}
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const [status, contentType, data] = await httpProxy(url, {
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method: req.method,
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headers,
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});
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let resultData = data;
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if (status === 200 && map) {
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resultData = map(data);
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}
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if (contentType) res.setHeader("Content-Type", contentType);
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if (status === 204 || status === 304) {
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return res.status(status).end();
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}
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if (status >= 400) {
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logger.debug("HTTP Error %d calling %s//%s%s...", status, url.protocol, url.hostname, url.pathname);
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}
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return res.status(status).send(resultData);
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}
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}
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logger.debug("Invalid or missing proxy service type '%s' in group '%s'", service, group);
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return res.status(400).json({ error: "Invalid proxy service type" });
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}
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87
src/utils/proxy/http.js
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87
src/utils/proxy/http.js
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/* eslint-disable prefer-promise-reject-errors */
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/* eslint-disable no-param-reassign */
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import { http, https } from "follow-redirects";
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import { addCookieToJar, setCookieHeader } from "./cookie-jar";
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function addCookieHandler(url, params) {
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setCookieHeader(url, params);
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// handle cookies during redirects
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params.beforeRedirect = (options, responseInfo) => {
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addCookieToJar(options.href, responseInfo.headers);
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setCookieHeader(options.href, options);
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};
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}
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export function httpsRequest(url, params) {
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return new Promise((resolve, reject) => {
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addCookieHandler(url, params);
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const request = https.request(url, params, (response) => {
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const data = [];
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response.on("data", (chunk) => {
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data.push(chunk);
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});
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response.on("end", () => {
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addCookieToJar(url, response.headers);
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resolve([response.statusCode, response.headers["content-type"], Buffer.concat(data), response.headers]);
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});
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});
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request.on("error", (error) => {
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reject([500, error]);
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});
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if (params.body) {
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request.write(params.body);
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}
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request.end();
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});
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}
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export function httpRequest(url, params) {
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return new Promise((resolve, reject) => {
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addCookieHandler(url, params);
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const request = http.request(url, params, (response) => {
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const data = [];
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response.on("data", (chunk) => {
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data.push(chunk);
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});
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response.on("end", () => {
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addCookieToJar(url, response.headers);
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resolve([response.statusCode, response.headers["content-type"], Buffer.concat(data), response.headers]);
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});
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});
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request.on("error", (error) => {
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reject([500, error]);
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});
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if (params.body) {
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request.write(params.body);
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}
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request.end();
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});
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}
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export function httpProxy(url, params = {}) {
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const constructedUrl = new URL(url);
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if (constructedUrl.protocol === "https:") {
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const httpsAgent = new https.Agent({
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rejectUnauthorized: false,
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});
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return httpsRequest(constructedUrl, {
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agent: httpsAgent,
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...params,
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});
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}
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return httpRequest(constructedUrl, params);
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}
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