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
|
import { db, g, s } from "$lib/db";
import ln, { lnListen, LightningUnavailableError } from "$lib/ln";
import { err, l, warn } from "$lib/logging";
import { handleZap } from "$lib/nostr";
import { credit } from "$lib/payments";
import { PaymentType } from "$lib/types";
import { getInvoice, getPayment, getUser } from "$lib/utils";
const LISTENER_RETRY_DELAY = 5000; // 5 seconds
const MAX_LISTENER_RETRIES = 10;
let listenerRetries = 0;
let listenerActive = false;
export async function listenForLightning() {
if (listenerActive) {
warn("lightning listener: already active, skipping duplicate call");
return;
}
listenerActive = true;
try {
const payIndex = (await g("pay_index")) || 0;
l(`lightning listener: waiting for invoice (pay_index=${payIndex})`);
const inv = await lnListen.waitanyinvoice(payIndex);
const {
local_offer_id,
bolt11,
bolt12,
description,
pay_index,
payment_hash,
amount_received_msat,
payment_preimage: preimage,
} = inv;
await s("pay_index", pay_index);
// Reset retry counter on successful receive
if (listenerRetries > 0) {
l(`lightning listener: recovered after ${listenerRetries} retries`);
}
listenerRetries = 0;
listenerActive = false;
// Schedule next listen
setTimeout(listenForLightning);
const received = Math.round(amount_received_msat / 1000);
try {
if (!preimage) return;
const invoice = await getInvoice(bolt11 ?? local_offer_id ?? bolt12);
if (!invoice) return warn("received lightning with no invoice", bolt11);
const p = await getPayment(bolt11 || bolt12);
if (p) return warn("already processed", bolt11 || bolt12);
if (invoice?.memo) {
try {
if (JSON.parse(description).kind === 9734) {
const { pubkey } = await getUser(invoice.uid);
handleZap(inv, pubkey);
}
} catch (e) {
if (!e.message.includes("Unexpected"))
warn("failed to handle zap", e.message);
}
}
await credit({
hash: bolt11 || bolt12,
amount: received,
memo: invoice.memo,
ref: preimage,
type: bolt12 ? PaymentType.bolt12 : PaymentType.lightning,
payment_hash,
});
} catch (e) {
console.log(e);
err("problem receiving lightning payment", e.message);
}
} catch (e: any) {
listenerActive = false;
const errorCode = e?.code ?? e?.errno ?? "unknown";
const errorMsg = e?.message ?? String(e);
err(
`lightning listener: error waiting for invoice`,
`code=${errorCode}`,
`error=${errorMsg}`
);
if (e instanceof LightningUnavailableError) {
err("lightning listener: RPC socket unavailable");
}
listenerRetries++;
if (listenerRetries >= MAX_LISTENER_RETRIES) {
err(
`lightning listener: ${MAX_LISTENER_RETRIES} consecutive failures, ` +
`last error: ${errorMsg}`
);
err("lightning listener: exiting process to trigger container restart");
setTimeout(() => {
process.exit(1);
}, 1000);
return;
}
warn(
`lightning listener: retry ${listenerRetries}/${MAX_LISTENER_RETRIES} ` +
`in ${LISTENER_RETRY_DELAY / 1000}s`
);
setTimeout(listenForLightning, LISTENER_RETRY_DELAY);
}
}
export async function replay(index) {
const inv = await lnListen.waitanyinvoice(index - 1);
const {
local_offer_id,
bolt11,
bolt12,
description,
amount_received_msat,
payment_preimage: preimage,
} = inv;
const received = Math.round(amount_received_msat / 1000);
try {
if (!preimage) return;
const invoice = await getInvoice(bolt11 ?? local_offer_id ?? bolt12);
if (!invoice) return warn("received lightning with no invoice", bolt11);
let p = await getPayment(bolt11 || bolt12);
if (p) return warn("already processed", bolt11 || bolt12);
if (invoice?.memo) {
try {
if (JSON.parse(description).kind === 9734) {
const { pubkey } = await getUser(invoice.uid);
handleZap(inv, pubkey);
}
} catch (e) {
if (!e.message.includes("Unexpected"))
warn("failed to handle zap", e.message);
}
}
p = await credit({
hash: bolt11 || bolt12,
amount: received,
memo: invoice.memo,
ref: preimage,
type: bolt12 ? PaymentType.bolt12 : PaymentType.lightning,
});
return p;
} catch (e) {
console.log(e);
err("problem receiving lightning payment", e.message);
}
}
export const fixBolt12 = async (_, res) => {
for await (const k of db.scanIterator({ MATCH: "payment:*" })) {
const p = await g(k);
if (p.type === "bolt12") {
console.log(k);
const { invoices } = await ln.listinvoices({ invstring: p.hash });
const { local_offer_id } = invoices[0];
const oid = await g(`payment:${local_offer_id}`);
const op = await g(`payment:${oid}`);
if (op) {
db.del(`payment:${oid}`);
db.del(`payment:${local_offer_id}`);
db.decrBy(`balance:${op.uid}`, op.amount);
}
}
}
res.send({});
};
|
