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Create reusable Synology proxy

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- Migrate DiskStation and DownloadStation to use new proxy
- Move DiskStation proxy UI logic into component
This commit is contained in:
Jason Fischer
2023-01-29 17:04:36 -08:00
parent 2b3d4b388a
commit e62952c2c1
8 changed files with 241 additions and 237 deletions
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88
src/widgets/downloadstation/proxy.js
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@@ -1,88 +0,0 @@
import { formatApiCall } from "utils/proxy/api-helpers";
import { httpProxy } from "utils/proxy/http";
import createLogger from "utils/logger";
import widgets from "widgets/widgets";
import getServiceWidget from "utils/config/service-helpers";
const logger = createLogger("downloadstationProxyHandler");
async function login(loginUrl) {
const [status, contentType, data] = await httpProxy(loginUrl);
if (status !== 200) {
return [status, contentType, data];
}
const json = JSON.parse(data.toString());
if (json?.success !== true) {
// from https://global.download.synology.com/download/Document/Software/DeveloperGuide/Package/DownloadStation/All/enu/Synology_Download_Station_Web_API.pdf
/*
Code Description
400 No such account or incorrect password
401 Account disabled
402 Permission denied
403 2-step verification code required
404 Failed to authenticate 2-step verification code
*/
let message = "Authentication failed.";
if (json?.error?.code >= 403) message += " 2FA enabled.";
logger.warn("Unable to login. Code: %d", json?.error?.code);
return [401, "application/json", JSON.stringify({ code: json?.error?.code, message })];
}
return [status, contentType, data];
}
export default async function downloadstationProxyHandler(req, res) {
const { group, service, endpoint } = req.query;
if (!group || !service) {
return res.status(400).json({ error: "Invalid proxy service type" });
}
const widget = await getServiceWidget(group, service);
const api = widgets?.[widget.type]?.api;
if (!api) {
return res.status(403).json({ error: "Service does not support API calls" });
}
const url = formatApiCall(api, { endpoint, ...widget });
let [status, contentType, data] = await httpProxy(url);
if (status !== 200) {
logger.debug("Error %d calling endpoint %s", status, url);
return res.status(status, data);
}
const json = JSON.parse(data.toString());
if (json?.success !== true) {
logger.debug("Attempting login to DownloadStation");
const apiInfoUrl = formatApiCall("{url}/webapi/query.cgi?api=SYNO.API.Info&version=1&method=query", widget);
let path = "entry.cgi";
let maxVersion = 7;
[status, contentType, data] = await httpProxy(apiInfoUrl);
if (status === 200) {
try {
const apiAuthInfo = JSON.parse(data.toString()).data['SYNO.API.Auth'];
if (apiAuthInfo) {
path = apiAuthInfo.path;
maxVersion = apiAuthInfo.maxVersion;
logger.debug(`Deteceted Downloadstation auth API path: ${path} and maxVersion: ${maxVersion}`);
}
} catch {
logger.debug(`Error ${status} obtaining DownloadStation API info`);
}
}
const authApi = `{url}/webapi/${path}?api=SYNO.API.Auth&version=${maxVersion}&method=login&account={username}&passwd={password}&session=DownloadStation&format=cookie`
const loginUrl = formatApiCall(authApi, widget);
[status, contentType, data] = await login(loginUrl);
if (status !== 200) {
return res.status(status).end(data)
}
[status, contentType, data] = await httpProxy(url);
}
if (contentType) res.setHeader("Content-Type", contentType);
return res.status(status).send(data);
}

11
src/widgets/downloadstation/widget.js
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@@ -1,12 +1,15 @@
import downloadstationProxyHandler from "./proxy";
import synologyProxyHandler from '../../utils/proxy/handlers/synology'
const widget = {
api: "{url}/webapi/DownloadStation/task.cgi?api=SYNO.DownloadStation.Task&version=1&method={endpoint}",
proxyHandler: downloadstationProxyHandler,
// cgiPath and maxVersion are discovered at runtime, don't supply
api: "{url}/webapi/{cgiPath}?api={apiName}&version={maxVersion}&method={apiMethod}",
proxyHandler: synologyProxyHandler,
mappings: {
"list": {
endpoint: "list&additional=transfer",
apiName: "SYNO.DownloadStation.Task",
apiMethod: "list&additional=transfer",
endpoint: "list"
},
},
};