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bot.js
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bot.js
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import { load as loadEnv } from "https://deno.land/std/dotenv/mod.ts";
import { DNS, GoogleAuth } from "https://googleapis.deno.dev/v1/dns:v1.ts";
import * as sdk from "npm:matrix-js-sdk";
const env = await loadEnv();
const dbFile = "./db.json";
const db = JSON.parse(Deno.readTextFileSync(dbFile));
const file = Deno.readTextFileSync("gcloud.json");
const auth = new GoogleAuth().fromJSON(JSON.parse(file));
const dns = new DNS(auth);
const matrix = sdk.createClient({
baseUrl: env.MATRIX_HOMESERVER,
accessToken: env.MATRIX_TOKEN,
userId: env.MATRIX_USER,
});
const domain = env.HANDLE_DOMAIN;
const room = env.MATRIX_ROOM;
function sendMessage(roomId, body, replyTo = null) {
const msg = {
body,
msgtype: "m.text",
//format: "org.matrix.custom.html",
};
if (replyTo) {
msg["m.relates_to"] = {
"m.in_reply_to": { event_id: replyTo },
};
}
return matrix.sendEvent(roomId, "m.room.message", msg);
}
function save() {
return Deno.writeTextFile(dbFile, JSON.stringify(db, null, 2));
}
async function setHandle(name, user, did, replyTo = null) {
const handle = [name, domain].join(".");
console.log(`Handle request: user=${user} did=${did} handle=${handle}`);
let found = null;
// check if not exists
if (db.handles[handle]) {
found = db.handles[handle];
if (found.user === user) {
if (found.did === did) {
return sendMessage(
room,
`Tento handle (${handle}) už máte nastavený!`,
replyTo,
);
}
} else {
return sendMessage(
room,
`Tento handle (${handle}) je už bohužel obsazený.`,
replyTo,
);
}
}
const recs = await dns.resourceRecordSetsList(
env.GCLOUD_DNS_ZONE,
env.GCLOUD_PROJECT,
);
if (recs.rrsets.find((r) => r.name === handle + ".")) {
return sendMessage(
room,
`Bohužel, tento handle (${handle}) si nastavit nemůžete :(`,
replyTo,
);
}
let prevHandle = Object.keys(db.handles).find((h) =>
db.handles[h].user === user
);
if (prevHandle) {
const prevDomain = `_atproto.${prevHandle}.`;
console.log(prevDomain);
const previous = recs.rrsets.find((r) =>
r.name === prevDomain && r.type === "TXT"
);
if (previous) {
const dresp = await dns.resourceRecordSetsDelete(
env.GCLOUD_DNS_ZONE,
prevDomain,
env.GCLOUD_PROJECT,
"TXT",
);
console.log(dresp);
}
delete db.handles[prevHandle];
}
const subdomain = `_atproto.${handle}.`;
const out = await dns.resourceRecordSetsCreate(
env.GCLOUD_DNS_ZONE,
env.GCLOUD_PROJECT,
{
name: subdomain,
type: "TXT",
rrdatas: [
`"did=${did}"`,
],
},
);
db.handles[handle] = {
user,
did,
createdAt: new Date().toISOString(),
};
save();
return sendMessage(
room,
`Hotovo! Váš handle je nastaven (${handle})! Nyní můžete verifikovat změnu handle na Bluesky.`,
replyTo,
);
}
matrix.on("Room.timeline", async (event) => {
const type = event.getType();
if (type == "m.room.message" && event.getRoomId() === room) {
if (db.answered.includes(event.getId())) {
return null;
}
const { body } = event.getContent();
if (body.startsWith("!handle")) {
const handleMatch = body.match(
/^!handle ([a-zA-Z0-9-\.]+) (did=|)(did:plc:[a-z0-9]+)$/,
);
if (handleMatch) {
await setHandle(
handleMatch[1],
event.getSender(),
handleMatch[3],
event.getId(),
);
} else {
await sendMessage(
room,
'Nesprávný příkaz! Zadávejte ve formě: "!handle jméno did", například: "!handle tree did:plc:524tuhdhh3m7li5gycdn6boe"',
event.getId(),
);
}
db.answered.push(event.getId());
save();
}
}
});
//const zones = await dns.managedZonesList(env.GCLOUD_DNS_ZONE);
//console.log(zones)
//const items = await dns.resourceRecordSetsList(env.GCLOUD_DNS_ZONE, env.GCLOUD_PROJECT)
//console.log(items)
matrix.startClient();