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112 lines
3.5 KiB
112 lines
3.5 KiB
import cache from "memory-cache";
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import { httpProxy } from "utils/proxy/http";
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import { formatApiCall } from "utils/proxy/api-helpers";
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import getServiceWidget from "utils/config/service-helpers";
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import createLogger from "utils/logger";
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import widgets from "widgets/widgets";
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const proxyName = "homebridgeProxyHandler";
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const sessionTokenCacheKey = `${proxyName}__sessionToken`;
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const logger = createLogger(proxyName);
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async function login(widget) {
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const endpoint = "auth/login";
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const api = widgets?.[widget.type]?.api
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const loginUrl = new URL(formatApiCall(api, { endpoint, ...widget }));
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const loginBody = { username: widget.username, password: widget.password };
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const headers = { "Content-Type": "application/json" };
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const [status, contentType, data, responseHeaders] = await httpProxy(loginUrl, {
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method: "POST",
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body: JSON.stringify(loginBody),
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headers,
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});
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const dataParsed = JSON.parse(data.toString())
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cache.put(sessionTokenCacheKey, dataParsed.access_token);
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return { status, contentType, data: dataParsed, responseHeaders };
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}
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async function apiCall(widget, endpoint) {
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const headers = {
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"content-type": "application/json",
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"Authorization": `Bearer ${cache.get(sessionTokenCacheKey)}`,
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}
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const url = new URL(formatApiCall(widgets[widget.type].api, { endpoint, ...widget }));
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const method = "GET";
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let [status, contentType, data, responseHeaders] = await httpProxy(url, {
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method,
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headers,
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});
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if (status === 401) {
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logger.debug("Homebridge is rejecting the request, but obtaining new session token");
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const { data: loginData } = login(widget);
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headers.Authorization = loginData?.auth_token;
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// retry the request, now with the new session token
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[status, contentType, data, responseHeaders] = await httpProxy(url, {
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method,
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headers,
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});
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}
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if (status !== 200) {
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logger.error("Error getting data from Homebridge: %d. Data: %s", status, data);
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}
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return { status, contentType, data: JSON.parse(data.toString()), responseHeaders };
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}
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function formatPluginsResponse(plugins) {
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const quantity = plugins?.data.filter(p => p.updateAvailable).length;
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return {
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updatesAvailable: quantity > 0,
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quantity,
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}
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}
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function formatChildBridgesResponse(childBridges) {
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const quantity = childBridges?.data?.length
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return {
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quantity,
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quantityWithOkStatus: childBridges?.data?.filter(cb => cb.status === "ok").length,
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}
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}
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export default async function homebridgeProxyHandler(req, res) {
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const { group, service } = req.query;
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if (!group || !service) {
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logger.debug("Invalid or missing service '%s' or 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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const widget = await getServiceWidget(group, service);
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if (!widget) {
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logger.debug("Invalid or missing widget for service '%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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await login(widget);
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const statusRs = await apiCall(widget, "status/homebridge");
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const versionRs = await apiCall(widget, "status/homebridge-version");
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const childBrigdeRs = await apiCall(widget, "status/homebridge/child-bridges");
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const pluginsRs = await apiCall(widget, "plugins");
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return res.status(200).send({
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data: {
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status: statusRs?.data?.status,
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updateAvailable: versionRs?.data?.updateAvailable,
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plugins: formatPluginsResponse(pluginsRs),
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childBridges: formatChildBridgesResponse(childBrigdeRs),
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}
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});
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}
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