1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
import { Relay, RelayPool } from "nostr";
import { got } from "got";
import { broadcast } from "$lib/sockets";
import store from "$lib/store";
import redis from "$lib/redis";
const { relays } = await got("https://nostr.watch/relays.json").json();
export const pool = RelayPool(relays);
pool.on("open", relay => {
if (relay.url.includes("coinos")) coinos = relay;
relay.subscribe("live", { limit: 1 });
});
export let coinos;
let now = () => Math.round(Date.now() / 1000);
let timeouts = {};
export let q = async (sub, query, timeout = 8000) =>
new Promise(async (r, j) => {
let rejected;
if (!coinos) return j(new Error("relay not initialized"));
query.since = await redis.get(`since:${sub}`);
if (now() - query.since < 3600) return r();
coinos.on("eose", s => !rejected && s === sub && r(timeouts[sub].clear()));
coinos.subscribe(sub, query);
timeouts[sub] = {
async clear() {
clearTimeout(this.timer);
delete timeouts[sub];
coinos.unsubscribe(sub);
await redis.set(`since:${sub}`, now());
},
extend(t = timeout) {
clearTimeout(this.timer);
this.timer = setTimeout(() => {
j(new Error(`query timed out: ${sub} ${Date.now()}`));
coinos.unsubscribe(sub);
rejected = true;
}, t);
},
timer: undefined
};
timeouts[sub].extend(timeout);
});
let seen = [];
let getUser = async pubkey =>
JSON.parse(await redis.get(`user:${pubkey}`)) || {
username: pubkey.substr(0, 6),
pubkey,
anon: true
};
pool.on("event", async (relay, sub, ev) => {
if (timeouts[sub]) timeouts[sub].extend();
try {
let content;
try {
content = JSON.parse(ev.content);
} catch (e) {
content = ev.content;
}
if (sub === "live") {
let { pubkey } = ev;
if (Math.abs(Math.floor(Date.now() / 1000) - ev.created_at) > 7200)
return;
if (seen.includes(ev.id)) return;
seen.push(ev.id);
seen.length > 1000 && seen.shift();
if (coinos && ev.kind < 5) {
coinos.send(["EVENT", ev]);
ev.user = await getUser(pubkey);
broadcast("event", ev);
}
} else if (sub.includes("profile")) {
let { pubkey } = ev;
let user = await getUser(pubkey);
if (user.updated > ev.created_at) return;
if (content.name && user.username === pubkey.substr(0, 6))
user.username = content.name;
delete content.name;
user = {
...user,
...content,
updated: ev.created_at
};
await redis.set(`user:${pubkey}`, JSON.stringify(user));
await redis.set(`user:${user.username}`, JSON.stringify(user));
} else if (sub.includes("follows")) {
let pubkey = sub.split(":")[0];
await redis.set(`${pubkey}:follows`, JSON.stringify(ev.tags));
for (let f of ev.tags) {
let [_, followPubkey] = f;
await redis.sAdd(`${followPubkey}:followers`, pubkey);
}
} else if (sub.includes("followers")) {
let followed = sub.split(":")[0];
let { pubkey } = ev;
await redis.sAdd(`${followed}:followers`, pubkey);
} else {
if (!relay.url.includes("coinos")) return;
let pubkey = sub;
ev.user = await getUser(pubkey);
// console.log(ev.user.username, "UPDATED AT", ev.user.updated)
if (!ev.user.updated) {
relay.subscribe(`${pubkey}:${ev.id}:profile`, {
limit: 1,
kinds: [0],
authors: [pubkey]
});
}
await redis.sAdd(pubkey, ev.id);
await redis.set(`ev:${ev.id}`, JSON.stringify(ev));
}
} catch (e) {
console.log(e);
}
});
|
