Add Seafile widget

public/locales/en/common.json

@@ -625,5 +625,11 @@
         "repos": "Repositories",
         "users": "Users",
         "orgs": "Organizations"
+    },
+    "seafile": {
+        "users": "Users",
+        "groups": "Groups",
+        "libraries": "Libraries",
+        "storage": "Storage"
     }
 }

src/widgets/components.js

@@ -70,6 +70,7 @@ const components = {
   rutorrent: dynamic(() => import("./rutorrent/component")),
   sabnzbd: dynamic(() => import("./sabnzbd/component")),
   scrutiny: dynamic(() => import("./scrutiny/component")),
+  seafile: dynamic(() => import("./seafile/component")),
   shoko: dynamic(() => import("./shoko/component")),
   sonarr: dynamic(() => import("./sonarr/component")),
   speedtest: dynamic(() => import("./speedtest/component")),

src/widgets/seafile/component.jsx

@@ -0,0 +1,40 @@
+import { useTranslation } from "next-i18next";
+
+import Container from "components/services/widget/container";
+import Block from "components/services/widget/block";
+import useWidgetAPI from "utils/proxy/use-widget-api";
+
+export default function Component({ service }) {
+  const { t } = useTranslation();
+
+  const { widget } = service;
+
+  const { data: seafileData, error: seafileError } = useWidgetAPI(widget);
+
+  if (seafileError) {
+    return <Container service={service} error={seafileError} />;
+  }
+
+  if (!seafileData) {
+    return (
+      <Container service={service}>
+        <Block label="seafile.users" />
+        <Block label="seafile.groups" />
+        <Block label="seafile.libraries" />
+        <Block label="seafile.storage" />
+      </Container>
+    );
+  }
+
+  return (
+    <Container service={service}>
+      <Block label="seafile.users" value={t("common.number", { value: seafileData.users_count })} />
+      <Block label="seafile.groups" value={t("common.number", { value: seafileData.groups_count })} />
+      <Block label="seafile.libraries" value={t("common.number", { value: seafileData.repos_count })} />
+      <Block
+        label="seafile.storage"
+        value={t("common.bytes", { value: seafileData.total_storage, maximumFractionDigits: 1 })}
+      />
+    </Container>
+  );
+}

src/widgets/seafile/proxy.js

@@ -0,0 +1,82 @@
+import cache from "memory-cache";
+
+import { formatApiCall } from "utils/proxy/api-helpers";
+import { httpProxy } from "utils/proxy/http";
+import getServiceWidget from "utils/config/service-helpers";
+import createLogger from "utils/logger";
+import widgets from "widgets/widgets";
+
+const proxyName = "seafileProxyHandler";
+const sessionTokenCacheKey = `${proxyName}__sessionToken`;
+const logger = createLogger(proxyName);
+
+async function login(widget, service) {
+  const endpoint = "api2/auth-token/";
+  const api = widgets?.[widget.type]?.api;
+  const loginUrl = new URL(formatApiCall(api, { endpoint, ...widget }));
+  const loginParams = {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/x-www-form-urlencoded",
+    },
+    body: new URLSearchParams({
+      username: widget.username,
+      password: widget.password,
+    }).toString(),
+  };
+
+  // eslint-disable-next-line no-unused-vars
+  const [status, contentType, data] = await httpProxy(loginUrl, loginParams);
+
+  try {
+    const { token } = JSON.parse(data.toString());
+    cache.put(`${sessionTokenCacheKey}.${service}`, token);
+    return { token };
+  } catch (e) {
+    logger.error("Unable to login to Seafile API: %s", e);
+  }
+
+  return { token: false };
+}
+
+export default async function seafileProxyHandler(req, res) {
+  const { group, service } = req.query;
+
+  if (!group || !service) {
+    logger.debug("Invalid or missing service '%s' or group '%s'", service, group);
+    return res.status(400).json({ error: "Invalid proxy service type" });
+  }
+
+  const widget = await getServiceWidget(group, service);
+
+  if (!widget) {
+    logger.debug("Invalid or missing widget for service '%s' in group '%s'", service, group);
+    return res.status(400).json({ error: "Invalid proxy service type" });
+  }
+
+  if (!cache.get(`${sessionTokenCacheKey}.${service}`)) {
+    await login(widget, service);
+  }
+
+  const endpoint = "api/v2.1/admin/sysinfo/";
+  const url = new URL(formatApiCall(widgets[widget.type].api, { endpoint, ...widget }));
+  const params = {
+    method: "GET",
+    headers: {
+      Authorization: `Token ${cache.get(`${sessionTokenCacheKey}.${service}`)}`,
+    },
+  };
+
+  let [status, contentType, data] = await httpProxy(url, params);
+
+  if (status === 401) {
+    logger.debug("Seafile API rejected the request, attempting to obtain new session token");
+    const { token } = await login(widget, service);
+    params.headers.Authorization = `Token ${token}`;
+
+    [status, contentType, data] = await httpProxy(url, params);
+  }
+
+  if (contentType) res.setHeader("Content-Type", contentType);
+  return res.status(status).send(data);
+}

src/widgets/seafile/widget.js

@@ -0,0 +1,8 @@
+import seafileProxyHandler from "./proxy";
+
+const widget = {
+  api: "{url}/{endpoint}",
+  proxyHandler: seafileProxyHandler,
+};
+
+export default widget;

src/widgets/widgets.js

@@ -64,6 +64,7 @@ import readarr from "./readarr/widget";
 import rutorrent from "./rutorrent/widget";
 import sabnzbd from "./sabnzbd/widget";
 import scrutiny from "./scrutiny/widget";
+import seafile from "./seafile/widget";
 import shoko from "./shoko/widget";
 import sonarr from "./sonarr/widget";
 import speedtest from "./speedtest/widget";
@@ -150,6 +151,7 @@ const widgets = {
   rutorrent,
   sabnzbd,
   scrutiny,
+  seafile,
   shoko,
   sonarr,
   speedtest,