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bitcoinjs-lib
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add from/toBech32

hk-custom-address
Daniel Cousens 7 years ago
committed by Daniel Cousens
parent
348280eb9a
commit
d1052e4996
4 changed files with 179 additions and 5 deletions
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  1. 1
      package.json
  2. 40
      src/address.js
  3. 52
      test/address.js
  4. 91
      test/fixtures/address.json

1
package.json
View File

@ -51,6 +51,7 @@
"src"
],
"dependencies": {
"bech32": "0.0.3",
"bigi": "^1.4.0",
"bip66": "^1.1.0",
"bitcoin-ops": "^1.3.0",

40
src/address.js
View File

@ -1,4 +1,5 @@
var Buffer = require('safe-buffer').Buffer
var bech32 = require('bech32')
var bs58check = require('bs58check')
var bscript = require('./script')
var networks = require('./networks')
@ -16,6 +17,28 @@ function fromBase58Check (address) {
return { hash: hash, version: version }
}
function fromBech32 (address, expectedPrefix) {
var result = bech32.decode(address)
var prefix = result.prefix
var words = result.words
if (expectedPrefix !== undefined) {
if (prefix !== expectedPrefix) throw new Error('Expected ' + expectedPrefix + ', got ' + prefix)
}
var version = words[0]
if (version > 16) throw new Error('Invalid version (' + version + ')')
var program = bech32.fromWords(words.slice(1))
if (version === 0) {
if (program.length !== 20 && program.length !== 32) throw new Error('Unknown program')
} else {
if (program.length < 2) throw new Error('Program too short')
if (program.length > 40) throw new Error('Program too long')
}
return { version, prefix, program: Buffer.from(program) }
}
function toBase58Check (hash, version) {
typeforce(types.tuple(types.Hash160bit, types.UInt8), arguments)
@ -26,6 +49,21 @@ function toBase58Check (hash, version) {
return bs58check.encode(payload)
}
function toBech32 (prefix, version, program) {
if (version > 16) throw new Error('Invalid version (' + version + ')')
if (version === 0) {
if (program.length !== 20 && program.length !== 32) throw new Error('Unknown program')
} else {
if (program.length < 2) throw new Error('Program too short')
if (program.length > 40) throw new Error('Program too long')
}
var words = bech32.toWords(program)
words.unshift(version)
return bech32.encode(prefix, words)
}
function fromOutputScript (outputScript, network) {
network = network || networks.bitcoin
@ -47,7 +85,9 @@ function toOutputScript (address, network) {
module.exports = {
fromBase58Check: fromBase58Check,
fromBech32: fromBech32,
fromOutputScript: fromOutputScript,
toBase58Check: toBase58Check,
toBech32: toBech32,
toOutputScript: toOutputScript
}

52
test/address.js
View File

@ -8,7 +8,7 @@ var fixtures = require('./fixtures/address.json')
describe('address', function () {
describe('fromBase58Check', function () {
fixtures.valid.forEach(function (f) {
fixtures.standard.forEach(function (f) {
it('decodes ' + f.base58check, function () {
var decode = baddress.fromBase58Check(f.base58check)
@ -26,8 +26,30 @@ describe('address', function () {
})
})
describe('fromBech32', function () {
fixtures.bech32.forEach((f) => {
it('encodes ' + f.address, function () {
var actual = baddress.fromBech32(f.address)
assert.strictEqual(actual.prefix, f.prefix)
assert.strictEqual(actual.program.toString('hex'), f.program)
assert.strictEqual(actual.version, f.version)
})
})
fixtures.invalid.bech32.forEach((f, i) => {
if (f.address === undefined) return
it('decode fails for ' + f.address + '(' + f.exception + ')', function () {
assert.throws(function () {
baddress.fromBech32(f.address, f.prefix)
}, new RegExp(f.exception))
})
})
})
describe('fromOutputScript', function () {
fixtures.valid.forEach(function (f) {
fixtures.standard.forEach(function (f) {
it('parses ' + f.script.slice(0, 30) + '... (' + f.network + ')', function () {
var script = bscript.fromASM(f.script)
var address = baddress.fromOutputScript(script, networks[f.network])
@ -48,7 +70,7 @@ describe('address', function () {
})
describe('toBase58Check', function () {
fixtures.valid.forEach(function (f) {
fixtures.standard.forEach(function (f) {
it('formats ' + f.hash + ' (' + f.network + ')', function () {
var address = baddress.toBase58Check(Buffer.from(f.hash, 'hex'), f.version)
@ -57,8 +79,30 @@ describe('address', function () {
})
})
describe('toBech32', function () {
fixtures.bech32.forEach((f, i) => {
// unlike the reference impl., we don't support mixed/uppercase
var string = f.address.toLowerCase()
var program = Buffer.from(f.program, 'hex')
it('encode ' + string, function () {
assert.deepEqual(baddress.toBech32(f.prefix, f.version, program), string)
})
})
fixtures.invalid.bech32.forEach((f, i) => {
if (!f.prefix || f.version === undefined || f.program === undefined) return
it('encode fails (' + f.exception, function () {
assert.throws(function () {
baddress.toBech32(f.prefix, f.version, Buffer.from(f.program, 'hex'))
}, new RegExp(f.exception))
})
})
})
describe('toOutputScript', function () {
fixtures.valid.forEach(function (f) {
fixtures.standard.forEach(function (f) {
var network = networks[f.network]
it('exports ' + f.script.slice(0, 30) + '... (' + f.network + ')', function () {

91
test/fixtures/address.json
View File

@ -1,5 +1,5 @@
{
"valid": [
"standard": [
{
"network": "bitcoin",
"version": 0,
@ -43,7 +43,96 @@
"script": "OP_HASH160 cd7b44d0b03f2d026d1e586d7ae18903b0d385f6 OP_EQUAL"
}
],
"bech32": [
{
"address": "BC1QW508D6QEJXTDG4Y5R3ZARVARY0C5XW7KV8F3T4",
"prefix": "bc",
"program": "751e76e8199196d454941c45d1b3a323f1433bd6",
"version": 0
},
{
"address": "tb1qrp33g0q5c5txsp9arysrx4k6zdkfs4nce4xj0gdcccefvpysxf3q0sl5k7",
"prefix": "tb",
"program": "1863143c14c5166804bd19203356da136c985678cd4d27a1b8c6329604903262",
"version": 0
},
{
"address": "bc1pw508d6qejxtdg4y5r3zarvary0c5xw7kw508d6qejxtdg4y5r3zarvary0c5xw7k7grplx",
"prefix": "bc",
"program": "751e76e8199196d454941c45d1b3a323f1433bd6751e76e8199196d454941c45d1b3a323f1433bd6",
"version": 1
},
{
"address": "BC1SW50QA3JX3S",
"prefix": "bc",
"program": "751e",
"version": 16
},
{
"address": "bc1zw508d6qejxtdg4y5r3zarvaryvg6kdaj",
"prefix": "bc",
"program": "751e76e8199196d454941c45d1b3a323",
"version": 2
},
{
"address": "tb1qqqqqp399et2xygdj5xreqhjjvcmzhxw4aywxecjdzew6hylgvsesrxh6hy",
"prefix": "tb",
"program": "000000c4a5cad46221b2a187905e5266362b99d5e91c6ce24d165dab93e86433",
"version": 0
}
],
"invalid": {
"bech32": [
{
"address": "bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t5",
"exception": "Invalid checksum"
},
{
"address": "BC13W508D6QEJXTDG4Y5R3ZARVARY0C5XW7KN40WF2",
"prefix": "bc",
"version": 17,
"program": "751e76e8199196d454941c45d1b3a323f1433bd6",
"exception": "Invalid version \\(17\\)"
},
{
"address": "BC1SW50QA3JX3S",
"prefix": "foo",
"exception": "Expected foo, got bc"
},
{
"address": "bc1rw5uspcuh",
"prefix": "bc",
"version": 1,
"program": "75",
"exception": "Program too short"
},
{
"address": "bc10w508d6qejxtdg4y5r3zarvary0c5xw7kw508d6qejxtdg4y5r3zarvary0c5xw7kw5rljs90",
"prefix": "bc",
"version": 1,
"program": "751e76e8199196d454941c45d1b3a323f1433bd6751e76e8199196d454941c45d1b3a323f1433bd675",
"exception": "Program too long"
},
{
"address": "BC1QR508D6QEJXTDG4Y5R3ZARVARYV98GJ9P",
"prefix": "bc",
"version": 0,
"program": "1d1e76e8199196d454941c45d1b3a323",
"exception": "Unknown program"
},
{
"address": "tb1qrp33g0q5c5txsp9arysrx4k6zdkfs4nce4xj0gdcccefvpysxf3q0sL5k7",
"exception": "Mixed-case string"
},
{
"address": "tb1pw508d6qejxtdg4y5r3zarqfsj6c3",
"exception": "Excess padding"
},
{
"address": "tb1qrp33g0q5c5txsp9arysrx4k6zdkfs4nce4xj0gdcccefvpysxf3pjxtptv",
"exception": "Non-zero padding"
}
],
"fromBase58Check": [
{
"address": "7SeEnXWPaCCALbVrTnszCVGfRU8cGfx",

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