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import { Router, Request, Response, NextFunction } from "express";
import { createFeaturedPost, createWebfinger } from "../activitypub.js";
import { acceptsActivityPub } from "../lib/activitypub.js";
import getConfig, { frontendConfig } from "../lib/config.js";
import Event from "../models/Event.js";
import { addToLog } from "../helpers.js";
const config = getConfig();
const router = Router();
const send404IfNotFederated = (
req: Request,
res: Response,
next: NextFunction,
) => {
if (!config.general.is_federated) {
return res.status(404).render("404", frontendConfig());
}
next();
};
router.use(send404IfNotFederated);
// return the JSON for the featured/pinned post for this event
router.get("/:eventID/featured", (req: Request, res: Response) => {
const { eventID } = req.params;
const featured = {
"@context": "https://www.w3.org/ns/activitystreams",
id: `https://${config.general.domain}/${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", async (req: Request, res: Response) => {
const { hash, eventID } = req.params;
const id = `https://${config.general.domain}/${eventID}/m/${hash}`;
try {
const event = await Event.findOne({
id: eventID,
});
if (!event) {
return res.status(404).render("404", frontendConfig());
} else {
if (!event.activityPubMessages) {
return res.status(404).render("404", frontendConfig());
}
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());
}
}
} catch (err) {
addToLog(
"getActivityPubMessage",
"error",
"Attempt to get Activity Pub Message for " +
id +
" failed with error: " +
err,
);
return res.status(404).render("404", frontendConfig());
}
});
router.get("/.well-known/webfinger", 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());
} else {
if (acceptsActivityPub(req)) {
res.header(
"Content-Type",
"application/activity+json",
).send(createWebfinger(eventID, config.general.domain));
} else {
res.header("Content-Type", "application/json").send(
createWebfinger(eventID, config.general.domain),
);
}
}
} catch (err) {
addToLog(
"renderWebfinger",
"error",
`Attempt to render webfinger for ${resource} failed with error: ${err}`,
);
return res.status(404).render("404", frontendConfig());
}
}
});
router.get("/:eventID/followers", async (req, res) => {
const eventID = req.params.eventID;
try {
const event = await Event.findOne({ id: eventID });
if (event && event.followers) {
const followers = event.followers.map((el) => el.actorId);
let followersCollection = {
type: "OrderedCollection",
totalItems: followers.length,
id: `https://${config.general.domain}/${eventID}/followers`,
first: {
type: "OrderedCollectionPage",
totalItems: followers.length,
partOf: `https://${config.general.domain}/${eventID}/followers`,
orderedItems: followers,
id: `https://${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());
}
});
export default router;
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