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 store from "$lib/store";
import redis from "$lib/redis";
import config from "$config";
import db from "$db";
import sequelize from "@sequelize/core";
import { fromBase58 } from "bip32";
import { payments as bcPayments, networks as bcNetworks } from "bitcoinjs-lib";
import { payments as lqPayments, networks as lqNetworks } from "liquidjs-lib";
import lnd from "$lib/lnd";
import ln from "$lib/ln";
const { Op } = sequelize;
export const nada = () => {};
export const sleep = n => new Promise(r => setTimeout(r, n));
export const wait = async (f, s = 300, n = 50) => {
let i = 0;
while (!(await f()) && i < s) (await sleep(n)) && i++;
if (i >= s) throw new Error("timeout");
return f();
};
export const requirePin = async ({ body, user }) => {
if (!user || (user.pin && user.pin !== body.pin))
throw new Error("Invalid pin");
};
export const getUser = async (username, transaction) => {
let params = {
include: [
{
model: db.Account,
as: "account"
}
],
where: {
[Op.or]: {
username: { [Op.or]: [username, username.replace(/ /g, "")] },
uuid: { [Op.or]: [username, username.replace(/ /g, "")] }
}
}
};
if (transaction) {
params.lock = transaction.LOCK.UPDATE;
params.transaction = transaction;
}
let user = await db.User.findOne(params);
if (!user) throw new Error(`User ${username} not found`);
user.haspin = !!user.pin;
return user;
};
export const getUserById = async (id, transaction) => {
let params = {
include: [
{
model: db.Account,
as: "account"
}
],
where: { id }
};
if (transaction) {
params.lock = transaction.LOCK.UPDATE;
params.transaction = transaction;
}
let user = await db.User.findOne(params);
if (!user) throw new Error("User not found");
return user;
};
export const prod = process.env.NODE_ENV === "production";
export const fail = msg => {
throw new Error(msg);
};
export const SATS = 100000000;
export const toSats = n => Math.round(n * SATS);
export const getBlockHeight = message => {
let buffer = Buffer.from(message, "hex");
if (buffer.length < 80) throw new Error("Buffer too small (< 80 bytes)");
let offset = 0;
const readSlice = n => {
offset += n;
return buffer.slice(offset - n, offset);
};
const readUInt32 = () => {
const i = buffer.readUInt32LE(offset);
offset += 4;
return i;
};
const readUInt8 = () => {
const i = buffer.readUInt8(offset);
offset += 1;
return i;
};
const readVarInt = () => {
const vi = varuint.decode(buffer, offset);
offset += varuint.decode.bytes;
return vi;
};
readUInt32();
readSlice(32);
readSlice(32);
readUInt32();
return readUInt32();
};
export const deriveAddress = async (account, type) => {
let { index, pubkey, path, network } = account;
let n = { bitcoin: bcNetworks, liquid: lqNetworks }[network][
prod ? "bitcoin" : "regtest"
];
let p = { bitcoin: bcPayments, liquid: lqPayments }[network];
let root = fromBase58(pubkey, n);
let parts = path.split("/");
let hd = root.derive(parseInt(parts[parts.length - 1]));
type = {
bech32: "p2wpkh",
"p2sh-segwit": "p2sh",
legacy: "p2pkh"
}[type];
console.log("TYPE", type);
let r;
if (type !== "p2sh") {
r = p[type]({
pubkey: hd.publicKey,
network: n
});
} else {
r = p[type]({
redeem: p.p2wpkh({
pubkey: hd.publicKey,
network: n
}),
network: n
});
}
index++;
account.index = index;
account.address = r.address;
await account.save();
return r;
};
export const bip21 = ({ address, amount, memo, tip, network }, { asset }) => {
if (network === "liquid") network = "liquidnetwork";
let url = amount || memo ? `${network}:${address}?` : address;
if (amount)
url += `amount=${((amount + tip) / SATS).toFixed(8)}${memo ? "&" : ""}`;
if (memo) url += `message=${memo}`;
if (network === "liquidnetwork" && amount) {
url += `&asset=${asset}`;
}
return url;
};
export const derivePayRequest = async ({ amount, memo, tip }) => {
if (!tip) tip = 0;
let value = amount + tip;
if (!memo) memo = "coinos";
return (
await ln.invoice(value ? `${value}sat` : "any", new Date(), memo, 360)
).bolt11;
};
export const uniq = (a, k) => [...new Map(a.map(x => [k(x), x])).values()];
|
