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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
import config from "$config";
import { g, s, db } from "$lib/db";
import { l } from "$lib/logging";
import { fail } from "$lib/utils";
import { nip19, finalizeEvent, getPublicKey } from "nostr-tools";
import { Relay } from "nostr-tools/relay";
import { AbstractSimplePool } from "nostr-tools/abstract-pool";
export const serverPubkey = getPublicKey(
nip19.decode(config.nostrKey).data as Uint8Array,
);
let alwaysTrue: any = (t: Event) => {
t[Symbol("verified")] = true;
return true;
};
export let pool = new AbstractSimplePool({ verifyEvent: alwaysTrue });
let opts = { maxWait: 2000 };
export async function send(ev, url = config.nostr) {
if (!(ev && ev.id)) return;
let r = await Relay.connect(url);
await r.publish(ev);
r.close();
}
export async function handleZap(invoice) {
let pubkey = serverPubkey;
let sk = nip19.decode(config.nostrKey).data as Uint8Array;
let zapreq = JSON.parse(invoice.description);
if (!zapreq.tags || zapreq.tags.length === 0) {
fail(`No tags found`);
}
let ptags = zapreq.tags.filter(
(t) => t && t.length && t.length >= 2 && t[0] === "p",
);
if (ptags.length !== 1) {
fail(`None or multiple p tags found`);
}
let etags = zapreq.tags.filter(
(t) => t && t.length && t.length >= 2 && t[0] === "e",
);
if (!(etags.length === 0 || etags.length === 1)) {
fail(`Expected none or 1 e tags`);
}
let relays_tag = zapreq.tags.find(
(t) => t && t.length && t.length >= 2 && t[0] === "relays",
);
if (!relays_tag) {
fail(`No relays tag found`);
}
let relays = relays_tag.slice(1).filter((r) => r && r.startsWith("ws"));
let etag = etags.length > 0 && etags[0];
let ptag = ptags[0];
let kind = 9735;
let created_at = invoice.paid_at;
let content = zapreq.content;
let tags = [ptag];
if (etag) tags.push(etag);
tags.push(["bolt11", invoice.bolt11]);
tags.push(["description", invoice.description]);
tags.push(["preimage", invoice.payment_preimage]);
let ev = { pubkey, kind, created_at, content, tags };
let signed = await finalizeEvent(ev, sk);
l("sending receipt");
await Promise.allSettled(
relays.map(async (url) => {
let r = await Relay.connect(url);
await r.publish(signed);
r.close();
}),
);
}
export let getRelays = async (pubkey): Promise<any> => {
let { relays } = config;
let filter = { authors: [pubkey], kinds: [10002] };
let event = await pool.get([config.nostr], filter, opts);
let read = relays;
let write = relays;
if (event) {
read = [];
write = [];
for (let r of event.tags) {
if (r[0] !== "r") continue;
if (!r[2] || r[2] === "write") write.push(r[1]);
if (!r[2] || r[2] === "read") read.push(r[1]);
}
} else
pool
.get(relays, filter)
.then(send)
.catch(() => {});
return { read, write };
};
export let getProfile = async (pubkey) => {
let noprofile = await db.sIsMember("noprofile", pubkey);
if (noprofile) return;
let pubkeys = [pubkey];
let relays = [config.nostr];
let filter: any = { authors: pubkeys, kinds: [0] };
let ev = await pool.get(relays, filter, opts);
if (!ev) {
filter = { cache: ["user_infos", { pubkeys }] };
ev = (await pool.querySync([config.cache], filter, opts)).find(
(e) => e.kind === 0,
);
}
if (!ev) {
({ write: relays } = await getRelays(pubkey));
ev = await pool.get(relays, filter, opts);
}
if (ev) {
send(ev);
return JSON.parse(ev.content);
} else return anon(pubkey);
};
export let anon = (pubkey) => ({
name: pubkey.substr(0, 6),
pubkey,
anon: true,
follows: [],
followers: [],
});
export let getCount = async (pubkey) => {
let created_at;
let filter: any = { kinds: [3], authors: [pubkey] };
let ev = await pool.get([config.nostr], filter, opts);
if (!ev) {
let { relays } = config;
({ write: relays } = await getRelays(pubkey));
filter = { kinds: [3], authors: [pubkey] };
ev = await pool.get(relays, filter, opts);
send(ev);
}
if (ev) ({ created_at } = ev);
let follows = 0;
let cache = await g(`${pubkey}:follows:n`);
if (cache && cache.t >= created_at) ({ follows } = cache);
else {
if (ev)
follows = ev.tags
.map((t) => t[0] === "p" && t[1])
.filter((p) => p && p.length === 64).length;
await s(`${pubkey}:follows:n`, { follows, t: created_at });
}
filter = { kinds: [3], "#p": [pubkey] };
ev = await pool.get([config.nostr], filter, opts);
if (ev) ({ created_at } = ev);
let followers = 0;
cache = await g(`${pubkey}:followers:n`);
if (cache && cache.t >= created_at) ({ followers } = cache);
else {
let filter: any = { cache: ["user_infos", { pubkeys: [pubkey] }] };
let infos = await pool.querySync([config.cache], filter, opts);
let f = infos.find((e) => e.kind === 10000133);
let counts = {};
if (f && f.content) {
counts = JSON.parse(f.content);
followers = counts[pubkey];
await s(`${pubkey}:followers:n`, { followers, t: created_at });
}
}
return { follows, followers };
};
|
