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import { Router, Request, Response, NextFunction } from "express";
import { createFeaturedPost, createWebfinger } from "../activitypub.js";
import { acceptsActivityPub } from "../lib/activitypub.js";
import { frontendConfig } from "../lib/config.js";
import Event from "../models/Event.js";
import { addToLog } from "../helpers.js";
import { getConfigMiddleware } from "../lib/middleware.js";
const router = Router();
router.use(getConfigMiddleware);
const send404IfNotFederated = (
req: Request,
res: Response,
next: NextFunction,
) => {
if (!res.locals.config?.general.is_federated) {
return res.status(404).render("404", frontendConfig(res));
}
next();
};
// return the JSON for the featured/pinned post for this event
router.get(
"/:eventID/featured",
send404IfNotFederated,
(req: Request, res: Response) => {
const { eventID } = req.params;
const featured = {
"@context": "https://www.w3.org/ns/activitystreams",
id: `https://${res.locals.config?.general.domain}/${eventID}/featured`,
type: "OrderedCollection",
orderedItems: [createFeaturedPost(eventID)],
};
if (acceptsActivityPub(req)) {
res.header("Content-Type", "application/activity+json").send(
featured,
);
} else {
res.header("Content-Type", "application/json").send(featured);
}
},
);
// return the JSON for a given activitypub message
router.get(
"/:eventID/m/:hash",
send404IfNotFederated,
async (req: Request, res: Response) => {
const { hash, eventID } = req.params;
const id = `https://${res.locals.config?.general.domain}/${eventID}/m/${hash}`;
try {
const event = await Event.findOne({
id: eventID,
});
if (!event) {
return res.status(404).render("404", frontendConfig(res));
} else {
if (!event.activityPubMessages) {
return res.status(404).render("404", frontendConfig(res));
}
const message = event.activityPubMessages.find(
(el) => el.id === id,
);
if (message) {
if (acceptsActivityPub(req)) {
res.header(
"Content-Type",
"application/activity+json",
).send(JSON.parse(message.content || "{}"));
} else {
res.header("Content-Type", "application/json").send(
JSON.parse(message.content || "{}"),
);
}
} else {
return res.status(404).render("404", frontendConfig(res));
}
}
} catch (err) {
addToLog(
"getActivityPubMessage",
"error",
"Attempt to get Activity Pub Message for " +
id +
" failed with error: " +
err,
);
return res.status(404).render("404", frontendConfig(res));
}
},
);
router.get("/.well-known/nodeinfo", send404IfNotFederated, (req, res) => {
if (!res.locals.config?.general.is_federated) {
return res.status(404).render("404", frontendConfig(res));
}
const nodeInfo = {
links: [
{
rel: "http://nodeinfo.diaspora.software/ns/schema/2.2",
href: `https://${res.locals.config?.general.domain}/.well-known/nodeinfo/2.2`,
},
],
};
res.header(
"Content-Type",
'application/json; profile="http://nodeinfo.diaspora.software/ns/schema/2.1#"',
).send(nodeInfo);
});
router.get(
"/.well-known/nodeinfo/2.2",
send404IfNotFederated,
async (req, res) => {
const eventCount = await Event.countDocuments();
if (!res.locals.config?.general.is_federated) {
return res.status(404).render("404", frontendConfig(res));
}
const nodeInfo = {
version: "2.2",
instance: {
name: res.locals.config?.general.site_name,
description:
"Federated, no-registration, privacy-respecting event hosting.",
},
software: {
name: "Gathio",
version: process.env.npm_package_version || "unknown",
repository: "https://github.com/lowercasename/gathio",
homepage: "https://gath.io",
},
protocols: ["activitypub"],
services: {
inbound: [],
outbound: [],
},
openRegistrations: true,
usage: {
users: {
total: eventCount,
},
},
};
res.header(
"Content-Type",
'application/json; profile="http://nodeinfo.diaspora.software/ns/schema/2.1#"',
).send(nodeInfo);
},
);
router.get(
"/.well-known/webfinger",
send404IfNotFederated,
async (req, res) => {
let resource = req.query.resource as string;
if (!resource || !resource.includes("acct:")) {
return res
.status(400)
.send(
'Bad request. Please make sure "acct:USER@DOMAIN" is what you are sending as the "resource" query parameter.',
);
} else {
// "foo@domain"
let activityPubAccount = resource.replace("acct:", "");
// "foo"
let eventID = activityPubAccount.replace(/@.*/, "");
try {
const event = await Event.findOne({ id: eventID });
if (!event) {
return res.status(404).render("404", frontendConfig(res));
} else {
if (acceptsActivityPub(req)) {
res.header(
"Content-Type",
"application/activity+json",
).send(
createWebfinger(
eventID,
res.locals.config?.general.domain,
),
);
} else {
res.header("Content-Type", "application/json").send(
createWebfinger(
eventID,
res.locals.config?.general.domain,
),
);
}
}
} catch (err) {
addToLog(
"renderWebfinger",
"error",
`Attempt to render webfinger for ${resource} failed with error: ${err}`,
);
return res.status(404).render("404", frontendConfig(res));
}
}
},
);
router.get("/:eventID/followers", send404IfNotFederated, async (req, res) => {
const eventID = req.params.eventID;
try {
const event = await Event.findOne({ id: eventID });
if (event && event.followers) {
const followers = event.followers.map((el) => el.actorId);
let followersCollection = {
type: "OrderedCollection",
totalItems: followers.length,
id: `https://${res.locals.config?.general.domain}/${eventID}/followers`,
first: {
type: "OrderedCollectionPage",
totalItems: followers.length,
partOf: `https://${res.locals.config?.general.domain}/${eventID}/followers`,
orderedItems: followers,
id: `https://${res.locals.config?.general.domain}/${eventID}/followers?page=1`,
},
"@context": ["https://www.w3.org/ns/activitystreams"],
};
if (acceptsActivityPub(req)) {
return res
.header("Content-Type", "application/activity+json")
.send(followersCollection);
} else {
return res
.header("Content-Type", "application/json")
.send(followersCollection);
}
} else {
return res.status(400).send("Bad request.");
}
} catch (err) {
addToLog(
"renderFollowers",
"error",
`Attempt to render followers for ${eventID} failed with error: ${err}`,
);
return res.status(404).render("404", frontendConfig(res));
}
});
export default router;
|
