rudeshark.net/packages/backend/src/server/well-known.ts
ThatOneCalculator c0ffb1db7f
Fix config
2023-01-23 10:35:51 -08:00

192 lines
4.5 KiB
TypeScript

import Router from "@koa/router";
import config from "@/config/index.js";
import * as Acct from "@/misc/acct.js";
import { links } from "./nodeinfo.js";
import { escapeAttribute, escapeValue } from "@/prelude/xml.js";
import { Users } from "@/models/index.js";
import type { User } from "@/models/entities/user.js";
import type { FindOptionsWhere } from "typeorm";
import { IsNull } from "typeorm";
// Init router
const router = new Router();
const XRD = (
...x: {
element: string;
value?: string;
attributes?: Record<string, string>;
}[]
) =>
`<?xml version="1.0" encoding="UTF-8"?><XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">${x
.map(
({ element, value, attributes }) =>
`<${Object.entries(
(typeof attributes === "object" && attributes) || {},
).reduce((a, [k, v]) => `${a} ${k}="${escapeAttribute(v)}"`, element)}${
typeof value === "string" ? `>${escapeValue(value)}</${element}` : "/"
}>`,
)
.reduce((a, c) => a + c, "")}</XRD>`;
const allPath = "/.well-known/(.*)";
const webFingerPath = "/.well-known/webfinger";
const jrd = "application/jrd+json";
const xrd = "application/xrd+xml";
router.use(allPath, async (ctx, next) => {
ctx.set({
"Access-Control-Allow-Headers": "Accept",
"Access-Control-Allow-Methods": "GET, OPTIONS",
"Access-Control-Allow-Origin": "*",
"Access-Control-Expose-Headers": "Vary",
});
await next();
});
router.options(allPath, async (ctx) => {
ctx.status = 204;
});
router.get("/.well-known/host-meta", async (ctx) => {
ctx.set("Content-Type", xrd);
ctx.body = XRD({
element: "Link",
attributes: {
rel: "lrdd",
type: xrd,
template: `${config.url}${webFingerPath}?resource={uri}`,
},
});
});
router.get("/.well-known/host-meta.json", async (ctx) => {
ctx.set("Content-Type", jrd);
ctx.body = {
links: [
{
rel: "lrdd",
type: jrd,
template: `${config.url}${webFingerPath}?resource={uri}`,
},
],
};
});
if (config.twa != null) {
router.get("/.well-known/assetlinks.json", async (ctx) => {
ctx.set("Content-Type", "application/json");
ctx.body = [
{
relation: ["delegate_permission/common.handle_all_urls"],
target: {
namespace: config.twa.nameSpace,
package_name: config.twa.packageName,
sha256_cert_fingerprints: config.twa.sha256CertFingerprints,
},
},
];
});
}
router.get("/.well-known/nodeinfo", async (ctx) => {
ctx.body = { links };
});
/* TODO
router.get('/.well-known/change-password', async ctx => {
});
*/
router.get(webFingerPath, async (ctx) => {
const fromId = (id: User["id"]): FindOptionsWhere<User> => ({
id,
host: IsNull(),
isSuspended: false,
});
const generateQuery = (resource: string): FindOptionsWhere<User> | number =>
resource.startsWith(`${config.url.toLowerCase()}/users/`)
? fromId(resource.split("/").pop()!)
: fromAcct(
Acct.parse(
resource.startsWith(`${config.url.toLowerCase()}/@`)
? resource.split("/").pop()!
: resource.startsWith("acct:")
? resource.slice("acct:".length)
: resource,
),
);
const fromAcct = (acct: Acct.Acct): FindOptionsWhere<User> | number =>
!acct.host || acct.host === config.host.toLowerCase()
? {
usernameLower: acct.username,
host: IsNull(),
isSuspended: false,
}
: 422;
if (typeof ctx.query.resource !== "string") {
ctx.status = 400;
return;
}
const query = generateQuery(ctx.query.resource.toLowerCase());
if (typeof query === "number") {
ctx.status = query;
return;
}
const user = await Users.findOneBy(query);
if (user == null) {
ctx.status = 404;
return;
}
const subject = `acct:${user.username}@${config.host}`;
const self = {
rel: "self",
type: "application/activity+json",
href: `${config.url}/users/${user.id}`,
};
const profilePage = {
rel: "http://webfinger.net/rel/profile-page",
type: "text/html",
href: `${config.url}/@${user.username}`,
};
const subscribe = {
rel: "http://ostatus.org/schema/1.0/subscribe",
template: `${config.url}/authorize-follow?acct={uri}`,
};
if (ctx.accepts(jrd, xrd) === xrd) {
ctx.body = XRD(
{ element: "Subject", value: subject },
{ element: "Link", attributes: self },
{ element: "Link", attributes: profilePage },
{ element: "Link", attributes: subscribe },
);
ctx.type = xrd;
} else {
ctx.body = {
subject,
links: [self, profilePage, subscribe],
};
ctx.type = jrd;
}
ctx.vary("Accept");
ctx.set("Cache-Control", "public, max-age=180");
});
// Return 404 for other .well-known
router.all(allPath, async (ctx) => {
ctx.status = 404;
});
export default router;