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Merge pull request #1349 from d-yokoi/lint

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ci: add tslint
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Jonathan Underwood 2019-03-12 22:56:07 +09:00 committed by GitHub
commit 492c435a1f
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93 changed files with 1237 additions and 1065 deletions
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245
package-lock.json generated
View file

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@ -130,6 +183,34 @@
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@ -139,6 +220,21 @@
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@ -3245,6 +3341,42 @@
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"js-yaml": "^3.7.0",
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"mkdirp": "^0.5.1",
"resolve": "^1.3.2",
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}, },
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"eslint-visitor-keys": "^1.0.0",
"typescript-estree": "5.3.0"
}
},
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"resolved": "https://registry.npmjs.org/unorm/-/unorm-1.5.0.tgz", "resolved": "https://registry.npmjs.org/unorm/-/unorm-1.5.0.tgz",

10
package.json
View file

@ -22,6 +22,7 @@
"format": "npm run prettier -- --write", "format": "npm run prettier -- --write",
"format:ci": "npm run prettier -- --check", "format:ci": "npm run prettier -- --check",
"integration": "npm run build && npm run nobuild:integration", "integration": "npm run build && npm run nobuild:integration",
"lint": "tslint -p tsconfig.json -c tslint.json",
"nobuild:coverage-report": "nyc report --reporter=lcov", "nobuild:coverage-report": "nyc report --reporter=lcov",
"nobuild:coverage-html": "nyc report --reporter=html", "nobuild:coverage-html": "nyc report --reporter=html",
"nobuild:coverage": "nyc --check-coverage --branches 90 --functions 90 --lines 90 mocha", "nobuild:coverage": "nyc --check-coverage --branches 90 --functions 90 --lines 90 mocha",
@ -29,7 +30,7 @@
"nobuild:unit": "mocha", "nobuild:unit": "mocha",
"prepare": "npm run build", "prepare": "npm run build",
"prettier": "prettier 'ts_src/**/*.ts' --ignore-path ./.prettierignore", "prettier": "prettier 'ts_src/**/*.ts' --ignore-path ./.prettierignore",
"test": "npm run build && npm run format:ci && npm run nobuild:coverage", "test": "npm run build && npm run format:ci && npm run lint && npm run nobuild:coverage",
"unit": "npm run build && npm run nobuild:unit" "unit": "npm run build && npm run nobuild:unit"
}, },
"repository": { "repository": {
@ -64,15 +65,14 @@
"bn.js": "^4.11.8", "bn.js": "^4.11.8",
"bs58": "^4.0.0", "bs58": "^4.0.0",
"dhttp": "^3.0.0", "dhttp": "^3.0.0",
"eslint-plugin-typescript": "^0.14.0",
"hoodwink": "^2.0.0", "hoodwink": "^2.0.0",
"minimaldata": "^1.0.2", "minimaldata": "^1.0.2",
"mocha": "^5.2.0", "mocha": "^5.2.0",
"nyc": "^11.8.0", "nyc": "^11.8.0",
"prettier": "^1.16.4", "prettier": "1.16.4",
"proxyquire": "^2.0.1", "proxyquire": "^2.0.1",
"typescript": "3.2.2", "tslint": "5.13.1",
"typescript-eslint-parser": "^21.0.2" "typescript": "3.2.2"
}, },
"license": "MIT" "license": "MIT"
} }

12
src/address.js
View file

@ -1,9 +1,9 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const types = require("./types");
const bscript = require("./script");
const networks = require("./networks"); const networks = require("./networks");
const payments = require("./payments"); const payments = require("./payments");
const bscript = require("./script");
const types = require("./types");
const bech32 = require('bech32'); const bech32 = require('bech32');
const bs58check = require('bs58check'); const bs58check = require('bs58check');
const typeforce = require('typeforce'); const typeforce = require('typeforce');
@ -16,7 +16,7 @@ function fromBase58Check(address) {
throw new TypeError(address + ' is too long'); throw new TypeError(address + ' is too long');
const version = payload.readUInt8(0); const version = payload.readUInt8(0);
const hash = payload.slice(1); const hash = payload.slice(1);
return { version: version, hash: hash }; return { version, hash };
} }
exports.fromBase58Check = fromBase58Check; exports.fromBase58Check = fromBase58Check;
function fromBech32(address) { function fromBech32(address) {
@ -44,7 +44,7 @@ function toBech32(data, version, prefix) {
} }
exports.toBech32 = toBech32; exports.toBech32 = toBech32;
function fromOutputScript(output, network) { function fromOutputScript(output, network) {
//TODO: Network // TODO: Network
network = network || networks.bitcoin; network = network || networks.bitcoin;
try { try {
return payments.p2pkh({ output, network }).address; return payments.p2pkh({ output, network }).address;
@ -67,8 +67,8 @@ function fromOutputScript(output, network) {
exports.fromOutputScript = fromOutputScript; exports.fromOutputScript = fromOutputScript;
function toOutputScript(address, network) { function toOutputScript(address, network) {
network = network || networks.bitcoin; network = network || networks.bitcoin;
let decodeBase58 = undefined; let decodeBase58;
let decodeBech32 = undefined; let decodeBech32;
try { try {
decodeBase58 = fromBase58Check(address); decodeBase58 = fromBase58Check(address);
} }

44
src/block.js
View file

@ -1,9 +1,9 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const bufferutils_1 = require("./bufferutils");
const bcrypto = require("./crypto");
const transaction_1 = require("./transaction"); const transaction_1 = require("./transaction");
const types = require("./types"); const types = require("./types");
const bcrypto = require("./crypto");
const bufferutils_1 = require("./bufferutils");
const fastMerkleRoot = require('merkle-lib/fastRoot'); const fastMerkleRoot = require('merkle-lib/fastRoot');
const typeforce = require('typeforce'); const typeforce = require('typeforce');
const varuint = require('varuint-bitcoin'); const varuint = require('varuint-bitcoin');
@ -28,16 +28,6 @@ function anyTxHasWitness(transactions) {
input.witness.length > 0))); input.witness.length > 0)));
} }
class Block { class Block {
constructor() {
this.version = 1;
this.timestamp = 0;
this.bits = 0;
this.nonce = 0;
this.prevHash = undefined;
this.merkleRoot = undefined;
this.witnessCommit = undefined;
this.transactions = undefined;
}
static fromBuffer(buffer) { static fromBuffer(buffer) {
if (buffer.length < 80) if (buffer.length < 80)
throw new Error('Buffer too small (< 80 bytes)'); throw new Error('Buffer too small (< 80 bytes)');
@ -77,11 +67,11 @@ class Block {
}; };
const nTransactions = readVarInt(); const nTransactions = readVarInt();
block.transactions = []; block.transactions = [];
for (var i = 0; i < nTransactions; ++i) { for (let i = 0; i < nTransactions; ++i) {
const tx = readTransaction(); const tx = readTransaction();
block.transactions.push(tx); block.transactions.push(tx);
} }
let witnessCommit = block.getWitnessCommit(); const witnessCommit = block.getWitnessCommit();
// This Block contains a witness commit // This Block contains a witness commit
if (witnessCommit) if (witnessCommit)
block.witnessCommit = witnessCommit; block.witnessCommit = witnessCommit;
@ -109,6 +99,16 @@ class Block {
? bcrypto.hash256(Buffer.concat([rootHash, transactions[0].ins[0].witness[0]])) ? bcrypto.hash256(Buffer.concat([rootHash, transactions[0].ins[0].witness[0]]))
: rootHash; : rootHash;
} }
constructor() {
this.version = 1;
this.timestamp = 0;
this.bits = 0;
this.nonce = 0;
this.prevHash = undefined;
this.merkleRoot = undefined;
this.witnessCommit = undefined;
this.transactions = undefined;
}
getWitnessCommit() { getWitnessCommit() {
if (!txesHaveWitnessCommit(this.transactions)) if (!txesHaveWitnessCommit(this.transactions))
return null; return null;
@ -116,11 +116,11 @@ class Block {
// There is no rule for the index of the output, so use filter to find it. // There is no rule for the index of the output, so use filter to find it.
// The root is prepended with 0xaa21a9ed so check for 0x6a24aa21a9ed // The root is prepended with 0xaa21a9ed so check for 0x6a24aa21a9ed
// If multiple commits are found, the output with highest index is assumed. // If multiple commits are found, the output with highest index is assumed.
let witnessCommits = this.transactions[0].outs.filter(out => out.script.slice(0, 6).equals(Buffer.from('6a24aa21a9ed', 'hex'))).map(out => out.script.slice(6, 38)); const witnessCommits = this.transactions[0].outs.filter(out => out.script.slice(0, 6).equals(Buffer.from('6a24aa21a9ed', 'hex'))).map(out => out.script.slice(6, 38));
if (witnessCommits.length === 0) if (witnessCommits.length === 0)
return null; return null;
// Use the commit with the highest output (should only be one though) // Use the commit with the highest output (should only be one though)
let result = witnessCommits[witnessCommits.length - 1]; const result = witnessCommits[witnessCommits.length - 1];
if (!(result instanceof Buffer && result.length === 32)) if (!(result instanceof Buffer && result.length === 32))
return null; return null;
return result; return result;
@ -193,7 +193,7 @@ class Block {
checkTxRoots() { checkTxRoots() {
// If the Block has segwit transactions but no witness commit, // If the Block has segwit transactions but no witness commit,
// there's no way it can be valid, so fail the check. // there's no way it can be valid, so fail the check.
let hasWitnessCommit = this.hasWitnessCommit(); const hasWitnessCommit = this.hasWitnessCommit();
if (!hasWitnessCommit && this.hasWitness()) if (!hasWitnessCommit && this.hasWitness())
return false; return false;
return (this.__checkMerkleRoot() && return (this.__checkMerkleRoot() &&
@ -204,6 +204,11 @@ class Block {
'deprecated in v5. Please use checkTxRoots instead.'); 'deprecated in v5. Please use checkTxRoots instead.');
return this.checkTxRoots(); return this.checkTxRoots();
} }
checkProofOfWork() {
const hash = bufferutils_1.reverseBuffer(this.getHash());
const target = Block.calculateTarget(this.bits);
return hash.compare(target) <= 0;
}
__checkMerkleRoot() { __checkMerkleRoot() {
if (!this.transactions) if (!this.transactions)
throw errorMerkleNoTxes; throw errorMerkleNoTxes;
@ -218,10 +223,5 @@ class Block {
const actualWitnessCommit = Block.calculateMerkleRoot(this.transactions, true); const actualWitnessCommit = Block.calculateMerkleRoot(this.transactions, true);
return this.witnessCommit.compare(actualWitnessCommit) === 0; return this.witnessCommit.compare(actualWitnessCommit) === 0;
} }
checkProofOfWork() {
const hash = bufferutils_1.reverseBuffer(this.getHash());
const target = Block.calculateTarget(this.bits);
return hash.compare(target) <= 0;
}
} }
exports.Block = Block; exports.Block = Block;

2
src/classify.js
View file

@ -6,9 +6,9 @@ const nullData = require("./templates/nulldata");
const pubKey = require("./templates/pubkey"); const pubKey = require("./templates/pubkey");
const pubKeyHash = require("./templates/pubkeyhash"); const pubKeyHash = require("./templates/pubkeyhash");
const scriptHash = require("./templates/scripthash"); const scriptHash = require("./templates/scripthash");
const witnessCommitment = require("./templates/witnesscommitment");
const witnessPubKeyHash = require("./templates/witnesspubkeyhash"); const witnessPubKeyHash = require("./templates/witnesspubkeyhash");
const witnessScriptHash = require("./templates/witnessscripthash"); const witnessScriptHash = require("./templates/witnessscripthash");
const witnessCommitment = require("./templates/witnesscommitment");
const types = { const types = {
P2MS: 'multisig', P2MS: 'multisig',
NONSTANDARD: 'nonstandard', NONSTANDARD: 'nonstandard',

22
src/ecpair.js
View file

@ -17,30 +17,30 @@ class ECPair {
this.compressed = this.compressed =
options.compressed === undefined ? true : options.compressed; options.compressed === undefined ? true : options.compressed;
this.network = options.network || NETWORKS.bitcoin; this.network = options.network || NETWORKS.bitcoin;
this.__d = undefined; this.__D = undefined;
this.__Q = undefined; this.__Q = undefined;
if (d !== undefined) if (d !== undefined)
this.__d = d; this.__D = d;
if (Q !== undefined) if (Q !== undefined)
this.__Q = ecc.pointCompress(Q, this.compressed); this.__Q = ecc.pointCompress(Q, this.compressed);
} }
get privateKey() { get privateKey() {
return this.__d; return this.__D;
} }
get publicKey() { get publicKey() {
if (!this.__Q) if (!this.__Q)
this.__Q = ecc.pointFromScalar(this.__d, this.compressed); this.__Q = ecc.pointFromScalar(this.__D, this.compressed);
return this.__Q; return this.__Q;
} }
toWIF() { toWIF() {
if (!this.__d) if (!this.__D)
throw new Error('Missing private key'); throw new Error('Missing private key');
return wif.encode(this.network.wif, this.__d, this.compressed); return wif.encode(this.network.wif, this.__D, this.compressed);
} }
sign(hash) { sign(hash) {
if (!this.__d) if (!this.__D)
throw new Error('Missing private key'); throw new Error('Missing private key');
return ecc.sign(hash, this.__d); return ecc.sign(hash, this.__D);
} }
verify(hash, signature) { verify(hash, signature) {
return ecc.verify(hash, this.publicKey, signature); return ecc.verify(hash, this.publicKey, signature);
@ -60,13 +60,13 @@ function fromPublicKey(buffer, options) {
return new ECPair(undefined, buffer, options); return new ECPair(undefined, buffer, options);
} }
exports.fromPublicKey = fromPublicKey; exports.fromPublicKey = fromPublicKey;
function fromWIF(string, network) { function fromWIF(wifString, network) {
const decoded = wif.decode(string); const decoded = wif.decode(wifString);
const version = decoded.version; const version = decoded.version;
// list of networks? // list of networks?
if (types.Array(network)) { if (types.Array(network)) {
network = network network = network
.filter(function (x) { .filter((x) => {
return version === x.wif; return version === x.wif;
}) })
.pop(); .pop();

8
src/index.js
View file

@ -2,12 +2,12 @@
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const bip32 = require("bip32"); const bip32 = require("bip32");
exports.bip32 = bip32; exports.bip32 = bip32;
const ECPair = require("./ecpair");
exports.ECPair = ECPair;
const address = require("./address"); const address = require("./address");
exports.address = address; exports.address = address;
const crypto = require("./crypto"); const crypto = require("./crypto");
exports.crypto = crypto; exports.crypto = crypto;
const ECPair = require("./ecpair");
exports.ECPair = ECPair;
const networks = require("./networks"); const networks = require("./networks");
exports.networks = networks; exports.networks = networks;
const payments = require("./payments"); const payments = require("./payments");
@ -16,9 +16,9 @@ const script = require("./script");
exports.script = script; exports.script = script;
var block_1 = require("./block"); var block_1 = require("./block");
exports.Block = block_1.Block; exports.Block = block_1.Block;
var script_1 = require("./script");
exports.opcodes = script_1.OPS;
var transaction_1 = require("./transaction"); var transaction_1 = require("./transaction");
exports.Transaction = transaction_1.Transaction; exports.Transaction = transaction_1.Transaction;
var transaction_builder_1 = require("./transaction_builder"); var transaction_builder_1 = require("./transaction_builder");
exports.TransactionBuilder = transaction_builder_1.TransactionBuilder; exports.TransactionBuilder = transaction_builder_1.TransactionBuilder;
var script_1 = require("./script");
exports.opcodes = script_1.OPS;

8
src/payments/embed.js
View file

@ -1,14 +1,14 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const networks_1 = require("../networks");
const bscript = require("../script"); const bscript = require("../script");
const lazy = require("./lazy"); const lazy = require("./lazy");
const networks_1 = require("../networks");
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
function stacksEqual(a, b) { function stacksEqual(a, b) {
if (a.length !== b.length) if (a.length !== b.length)
return false; return false;
return a.every(function (x, i) { return a.every((x, i) => {
return x.equals(b[i]); return x.equals(b[i]);
}); });
} }
@ -24,12 +24,12 @@ function p2data(a, opts) {
}, a); }, a);
const network = a.network || networks_1.bitcoin; const network = a.network || networks_1.bitcoin;
const o = { network }; const o = { network };
lazy.prop(o, 'output', function () { lazy.prop(o, 'output', () => {
if (!a.data) if (!a.data)
return; return;
return bscript.compile([OPS.OP_RETURN].concat(a.data)); return bscript.compile([OPS.OP_RETURN].concat(a.data));
}); });
lazy.prop(o, 'data', function () { lazy.prop(o, 'data', () => {
if (!a.output) if (!a.output)
return; return;
return bscript.decompile(a.output).slice(1); return bscript.decompile(a.output).slice(1);

24
src/payments/lazy.js
View file

@ -4,16 +4,16 @@ function prop(object, name, f) {
Object.defineProperty(object, name, { Object.defineProperty(object, name, {
configurable: true, configurable: true,
enumerable: true, enumerable: true,
get: function () { get() {
let value = f.call(this); const _value = f.call(this);
this[name] = value; this[name] = _value;
return value; return _value;
}, },
set: function (value) { set(_value) {
Object.defineProperty(this, name, { Object.defineProperty(this, name, {
configurable: true, configurable: true,
enumerable: true, enumerable: true,
value: value, value: _value,
writable: true, writable: true,
}); });
}, },
@ -21,12 +21,12 @@ function prop(object, name, f) {
} }
exports.prop = prop; exports.prop = prop;
function value(f) { function value(f) {
let value; let _value;
return function () { return () => {
if (value !== undefined) if (_value !== undefined)
return value; return _value;
value = f(); _value = f();
return value; return _value;
}; };
} }
exports.value = value; exports.value = value;

18
src/payments/p2ms.js
View file

@ -1,8 +1,8 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const networks_1 = require("../networks");
const bscript = require("../script"); const bscript = require("../script");
const lazy = require("./lazy"); const lazy = require("./lazy");
const networks_1 = require("../networks");
const OPS = bscript.OPS; const OPS = bscript.OPS;
const typef = require('typeforce'); const typef = require('typeforce');
const ecc = require('tiny-secp256k1'); const ecc = require('tiny-secp256k1');
@ -10,7 +10,7 @@ const OP_INT_BASE = OPS.OP_RESERVED; // OP_1 - 1
function stacksEqual(a, b) { function stacksEqual(a, b) {
if (a.length !== b.length) if (a.length !== b.length)
return false; return false;
return a.every(function (x, i) { return a.every((x, i) => {
return x.equals(b[i]); return x.equals(b[i]);
}); });
} }
@ -49,7 +49,7 @@ function p2ms(a, opts) {
o.n = chunks[chunks.length - 2] - OP_INT_BASE; o.n = chunks[chunks.length - 2] - OP_INT_BASE;
o.pubkeys = chunks.slice(1, -2); o.pubkeys = chunks.slice(1, -2);
} }
lazy.prop(o, 'output', function () { lazy.prop(o, 'output', () => {
if (!a.m) if (!a.m)
return; return;
if (!o.n) if (!o.n)
@ -58,34 +58,34 @@ function p2ms(a, opts) {
return; return;
return bscript.compile([].concat(OP_INT_BASE + a.m, a.pubkeys, OP_INT_BASE + o.n, OPS.OP_CHECKMULTISIG)); return bscript.compile([].concat(OP_INT_BASE + a.m, a.pubkeys, OP_INT_BASE + o.n, OPS.OP_CHECKMULTISIG));
}); });
lazy.prop(o, 'm', function () { lazy.prop(o, 'm', () => {
if (!o.output) if (!o.output)
return; return;
decode(o.output); decode(o.output);
return o.m; return o.m;
}); });
lazy.prop(o, 'n', function () { lazy.prop(o, 'n', () => {
if (!o.pubkeys) if (!o.pubkeys)
return; return;
return o.pubkeys.length; return o.pubkeys.length;
}); });
lazy.prop(o, 'pubkeys', function () { lazy.prop(o, 'pubkeys', () => {
if (!a.output) if (!a.output)
return; return;
decode(a.output); decode(a.output);
return o.pubkeys; return o.pubkeys;
}); });
lazy.prop(o, 'signatures', function () { lazy.prop(o, 'signatures', () => {
if (!a.input) if (!a.input)
return; return;
return bscript.decompile(a.input).slice(1); return bscript.decompile(a.input).slice(1);
}); });
lazy.prop(o, 'input', function () { lazy.prop(o, 'input', () => {
if (!a.signatures) if (!a.signatures)
return; return;
return bscript.compile([OPS.OP_0].concat(a.signatures)); return bscript.compile([OPS.OP_0].concat(a.signatures));
}); });
lazy.prop(o, 'witness', function () { lazy.prop(o, 'witness', () => {
if (!o.input) if (!o.input)
return; return;
return []; return [];

14
src/payments/p2pk.js
View file

@ -1,8 +1,8 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const networks_1 = require("../networks");
const bscript = require("../script"); const bscript = require("../script");
const lazy = require("./lazy"); const lazy = require("./lazy");
const networks_1 = require("../networks");
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
const ecc = require('tiny-secp256k1'); const ecc = require('tiny-secp256k1');
@ -19,32 +19,32 @@ function p2pk(a, opts) {
signature: typef.maybe(bscript.isCanonicalScriptSignature), signature: typef.maybe(bscript.isCanonicalScriptSignature),
input: typef.maybe(typef.Buffer), input: typef.maybe(typef.Buffer),
}, a); }, a);
const _chunks = lazy.value(function () { const _chunks = lazy.value(() => {
return bscript.decompile(a.input); return bscript.decompile(a.input);
}); });
const network = a.network || networks_1.bitcoin; const network = a.network || networks_1.bitcoin;
const o = { network }; const o = { network };
lazy.prop(o, 'output', function () { lazy.prop(o, 'output', () => {
if (!a.pubkey) if (!a.pubkey)
return; return;
return bscript.compile([a.pubkey, OPS.OP_CHECKSIG]); return bscript.compile([a.pubkey, OPS.OP_CHECKSIG]);
}); });
lazy.prop(o, 'pubkey', function () { lazy.prop(o, 'pubkey', () => {
if (!a.output) if (!a.output)
return; return;
return a.output.slice(1, -1); return a.output.slice(1, -1);
}); });
lazy.prop(o, 'signature', function () { lazy.prop(o, 'signature', () => {
if (!a.input) if (!a.input)
return; return;
return _chunks()[0]; return _chunks()[0];
}); });
lazy.prop(o, 'input', function () { lazy.prop(o, 'input', () => {
if (!a.signature) if (!a.signature)
return; return;
return bscript.compile([a.signature]); return bscript.compile([a.signature]);
}); });
lazy.prop(o, 'witness', function () { lazy.prop(o, 'witness', () => {
if (!o.input) if (!o.input)
return; return;
return []; return [];

22
src/payments/p2pkh.js
View file

@ -1,9 +1,9 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const bscript = require("../script");
const bcrypto = require("../crypto"); const bcrypto = require("../crypto");
const lazy = require("./lazy");
const networks_1 = require("../networks"); const networks_1 = require("../networks");
const bscript = require("../script");
const lazy = require("./lazy");
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
const ecc = require('tiny-secp256k1'); const ecc = require('tiny-secp256k1');
@ -23,18 +23,18 @@ function p2pkh(a, opts) {
signature: typef.maybe(bscript.isCanonicalScriptSignature), signature: typef.maybe(bscript.isCanonicalScriptSignature),
input: typef.maybe(typef.Buffer), input: typef.maybe(typef.Buffer),
}, a); }, a);
const _address = lazy.value(function () { const _address = lazy.value(() => {
const payload = bs58check.decode(a.address); const payload = bs58check.decode(a.address);
const version = payload.readUInt8(0); const version = payload.readUInt8(0);
const hash = payload.slice(1); const hash = payload.slice(1);
return { version, hash }; return { version, hash };
}); });
const _chunks = lazy.value(function () { const _chunks = lazy.value(() => {
return bscript.decompile(a.input); return bscript.decompile(a.input);
}); });
const network = a.network || networks_1.bitcoin; const network = a.network || networks_1.bitcoin;
const o = { network }; const o = { network };
lazy.prop(o, 'address', function () { lazy.prop(o, 'address', () => {
if (!o.hash) if (!o.hash)
return; return;
const payload = Buffer.allocUnsafe(21); const payload = Buffer.allocUnsafe(21);
@ -42,7 +42,7 @@ function p2pkh(a, opts) {
o.hash.copy(payload, 1); o.hash.copy(payload, 1);
return bs58check.encode(payload); return bs58check.encode(payload);
}); });
lazy.prop(o, 'hash', function () { lazy.prop(o, 'hash', () => {
if (a.output) if (a.output)
return a.output.slice(3, 23); return a.output.slice(3, 23);
if (a.address) if (a.address)
@ -50,7 +50,7 @@ function p2pkh(a, opts) {
if (a.pubkey || o.pubkey) if (a.pubkey || o.pubkey)
return bcrypto.hash160(a.pubkey || o.pubkey); return bcrypto.hash160(a.pubkey || o.pubkey);
}); });
lazy.prop(o, 'output', function () { lazy.prop(o, 'output', () => {
if (!o.hash) if (!o.hash)
return; return;
return bscript.compile([ return bscript.compile([
@ -61,24 +61,24 @@ function p2pkh(a, opts) {
OPS.OP_CHECKSIG, OPS.OP_CHECKSIG,
]); ]);
}); });
lazy.prop(o, 'pubkey', function () { lazy.prop(o, 'pubkey', () => {
if (!a.input) if (!a.input)
return; return;
return _chunks()[1]; return _chunks()[1];
}); });
lazy.prop(o, 'signature', function () { lazy.prop(o, 'signature', () => {
if (!a.input) if (!a.input)
return; return;
return _chunks()[0]; return _chunks()[0];
}); });
lazy.prop(o, 'input', function () { lazy.prop(o, 'input', () => {
if (!a.pubkey) if (!a.pubkey)
return; return;
if (!a.signature) if (!a.signature)
return; return;
return bscript.compile([a.signature, a.pubkey]); return bscript.compile([a.signature, a.pubkey]);
}); });
lazy.prop(o, 'witness', function () { lazy.prop(o, 'witness', () => {
if (!o.input) if (!o.input)
return; return;
return []; return [];

26
src/payments/p2sh.js
View file

@ -1,8 +1,8 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const bcrypto = require("../crypto");
const networks_1 = require("../networks"); const networks_1 = require("../networks");
const bscript = require("../script"); const bscript = require("../script");
const bcrypto = require("../crypto");
const lazy = require("./lazy"); const lazy = require("./lazy");
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
@ -10,7 +10,7 @@ const bs58check = require('bs58check');
function stacksEqual(a, b) { function stacksEqual(a, b) {
if (a.length !== b.length) if (a.length !== b.length)
return false; return false;
return a.every(function (x, i) { return a.every((x, i) => {
return x.equals(b[i]); return x.equals(b[i]);
}); });
} }
@ -40,16 +40,16 @@ function p2sh(a, opts) {
network = (a.redeem && a.redeem.network) || networks_1.bitcoin; network = (a.redeem && a.redeem.network) || networks_1.bitcoin;
} }
const o = { network }; const o = { network };
const _address = lazy.value(function () { const _address = lazy.value(() => {
const payload = bs58check.decode(a.address); const payload = bs58check.decode(a.address);
const version = payload.readUInt8(0); const version = payload.readUInt8(0);
const hash = payload.slice(1); const hash = payload.slice(1);
return { version, hash }; return { version, hash };
}); });
const _chunks = lazy.value(function () { const _chunks = lazy.value(() => {
return bscript.decompile(a.input); return bscript.decompile(a.input);
}); });
const _redeem = lazy.value(function () { const _redeem = lazy.value(() => {
const chunks = _chunks(); const chunks = _chunks();
return { return {
network, network,
@ -59,7 +59,7 @@ function p2sh(a, opts) {
}; };
}); });
// output dependents // output dependents
lazy.prop(o, 'address', function () { lazy.prop(o, 'address', () => {
if (!o.hash) if (!o.hash)
return; return;
const payload = Buffer.allocUnsafe(21); const payload = Buffer.allocUnsafe(21);
@ -67,7 +67,7 @@ function p2sh(a, opts) {
o.hash.copy(payload, 1); o.hash.copy(payload, 1);
return bs58check.encode(payload); return bs58check.encode(payload);
}); });
lazy.prop(o, 'hash', function () { lazy.prop(o, 'hash', () => {
// in order of least effort // in order of least effort
if (a.output) if (a.output)
return a.output.slice(2, 22); return a.output.slice(2, 22);
@ -76,23 +76,23 @@ function p2sh(a, opts) {
if (o.redeem && o.redeem.output) if (o.redeem && o.redeem.output)
return bcrypto.hash160(o.redeem.output); return bcrypto.hash160(o.redeem.output);
}); });
lazy.prop(o, 'output', function () { lazy.prop(o, 'output', () => {
if (!o.hash) if (!o.hash)
return; return;
return bscript.compile([OPS.OP_HASH160, o.hash, OPS.OP_EQUAL]); return bscript.compile([OPS.OP_HASH160, o.hash, OPS.OP_EQUAL]);
}); });
// input dependents // input dependents
lazy.prop(o, 'redeem', function () { lazy.prop(o, 'redeem', () => {
if (!a.input) if (!a.input)
return; return;
return _redeem(); return _redeem();
}); });
lazy.prop(o, 'input', function () { lazy.prop(o, 'input', () => {
if (!a.redeem || !a.redeem.input || !a.redeem.output) if (!a.redeem || !a.redeem.input || !a.redeem.output)
return; return;
return bscript.compile([].concat(bscript.decompile(a.redeem.input), a.redeem.output)); return bscript.compile([].concat(bscript.decompile(a.redeem.input), a.redeem.output));
}); });
lazy.prop(o, 'witness', function () { lazy.prop(o, 'witness', () => {
if (o.redeem && o.redeem.witness) if (o.redeem && o.redeem.witness)
return o.redeem.witness; return o.redeem.witness;
if (o.input) if (o.input)
@ -126,7 +126,7 @@ function p2sh(a, opts) {
hash = hash2; hash = hash2;
} }
// inlined to prevent 'no-inner-declarations' failing // inlined to prevent 'no-inner-declarations' failing
const checkRedeem = function (redeem) { const checkRedeem = (redeem) => {
// is the redeem output empty/invalid? // is the redeem output empty/invalid?
if (redeem.output) { if (redeem.output) {
const decompile = bscript.decompile(redeem.output); const decompile = bscript.decompile(redeem.output);
@ -147,7 +147,7 @@ function p2sh(a, opts) {
if (hasInput && hasWitness) if (hasInput && hasWitness)
throw new TypeError('Input and witness provided'); throw new TypeError('Input and witness provided');
if (hasInput) { if (hasInput) {
const richunks = (bscript.decompile(redeem.input)); const richunks = bscript.decompile(redeem.input);
if (!bscript.isPushOnly(richunks)) if (!bscript.isPushOnly(richunks))
throw new TypeError('Non push-only scriptSig'); throw new TypeError('Non push-only scriptSig');
} }

20
src/payments/p2wpkh.js
View file

@ -1,9 +1,9 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const bscript = require("../script");
const bcrypto = require("../crypto"); const bcrypto = require("../crypto");
const lazy = require("./lazy");
const networks_1 = require("../networks"); const networks_1 = require("../networks");
const bscript = require("../script");
const lazy = require("./lazy");
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
const ecc = require('tiny-secp256k1'); const ecc = require('tiny-secp256k1');
@ -26,7 +26,7 @@ function p2wpkh(a, opts) {
signature: typef.maybe(bscript.isCanonicalScriptSignature), signature: typef.maybe(bscript.isCanonicalScriptSignature),
witness: typef.maybe(typef.arrayOf(typef.Buffer)), witness: typef.maybe(typef.arrayOf(typef.Buffer)),
}, a); }, a);
const _address = lazy.value(function () { const _address = lazy.value(() => {
const result = bech32.decode(a.address); const result = bech32.decode(a.address);
const version = result.words.shift(); const version = result.words.shift();
const data = bech32.fromWords(result.words); const data = bech32.fromWords(result.words);
@ -38,14 +38,14 @@ function p2wpkh(a, opts) {
}); });
const network = a.network || networks_1.bitcoin; const network = a.network || networks_1.bitcoin;
const o = { network }; const o = { network };
lazy.prop(o, 'address', function () { lazy.prop(o, 'address', () => {
if (!o.hash) if (!o.hash)
return; return;
const words = bech32.toWords(o.hash); const words = bech32.toWords(o.hash);
words.unshift(0x00); words.unshift(0x00);
return bech32.encode(network.bech32, words); return bech32.encode(network.bech32, words);
}); });
lazy.prop(o, 'hash', function () { lazy.prop(o, 'hash', () => {
if (a.output) if (a.output)
return a.output.slice(2, 22); return a.output.slice(2, 22);
if (a.address) if (a.address)
@ -53,29 +53,29 @@ function p2wpkh(a, opts) {
if (a.pubkey || o.pubkey) if (a.pubkey || o.pubkey)
return bcrypto.hash160(a.pubkey || o.pubkey); return bcrypto.hash160(a.pubkey || o.pubkey);
}); });
lazy.prop(o, 'output', function () { lazy.prop(o, 'output', () => {
if (!o.hash) if (!o.hash)
return; return;
return bscript.compile([OPS.OP_0, o.hash]); return bscript.compile([OPS.OP_0, o.hash]);
}); });
lazy.prop(o, 'pubkey', function () { lazy.prop(o, 'pubkey', () => {
if (a.pubkey) if (a.pubkey)
return a.pubkey; return a.pubkey;
if (!a.witness) if (!a.witness)
return; return;
return a.witness[1]; return a.witness[1];
}); });
lazy.prop(o, 'signature', function () { lazy.prop(o, 'signature', () => {
if (!a.witness) if (!a.witness)
return; return;
return a.witness[0]; return a.witness[0];
}); });
lazy.prop(o, 'input', function () { lazy.prop(o, 'input', () => {
if (!o.witness) if (!o.witness)
return; return;
return EMPTY_BUFFER; return EMPTY_BUFFER;
}); });
lazy.prop(o, 'witness', function () { lazy.prop(o, 'witness', () => {
if (!a.pubkey) if (!a.pubkey)
return; return;
if (!a.signature) if (!a.signature)

20
src/payments/p2wsh.js
View file

@ -1,8 +1,8 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const bcrypto = require("../crypto");
const networks_1 = require("../networks"); const networks_1 = require("../networks");
const bscript = require("../script"); const bscript = require("../script");
const bcrypto = require("../crypto");
const lazy = require("./lazy"); const lazy = require("./lazy");
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
@ -11,7 +11,7 @@ const EMPTY_BUFFER = Buffer.alloc(0);
function stacksEqual(a, b) { function stacksEqual(a, b) {
if (a.length !== b.length) if (a.length !== b.length)
return false; return false;
return a.every(function (x, i) { return a.every((x, i) => {
return x.equals(b[i]); return x.equals(b[i]);
}); });
} }
@ -36,7 +36,7 @@ function p2wsh(a, opts) {
input: typef.maybe(typef.BufferN(0)), input: typef.maybe(typef.BufferN(0)),
witness: typef.maybe(typef.arrayOf(typef.Buffer)), witness: typef.maybe(typef.arrayOf(typef.Buffer)),
}, a); }, a);
const _address = lazy.value(function () { const _address = lazy.value(() => {
const result = bech32.decode(a.address); const result = bech32.decode(a.address);
const version = result.words.shift(); const version = result.words.shift();
const data = bech32.fromWords(result.words); const data = bech32.fromWords(result.words);
@ -46,7 +46,7 @@ function p2wsh(a, opts) {
data: Buffer.from(data), data: Buffer.from(data),
}; };
}); });
const _rchunks = lazy.value(function () { const _rchunks = lazy.value(() => {
return bscript.decompile(a.redeem.input); return bscript.decompile(a.redeem.input);
}); });
let network = a.network; let network = a.network;
@ -54,14 +54,14 @@ function p2wsh(a, opts) {
network = (a.redeem && a.redeem.network) || networks_1.bitcoin; network = (a.redeem && a.redeem.network) || networks_1.bitcoin;
} }
const o = { network }; const o = { network };
lazy.prop(o, 'address', function () { lazy.prop(o, 'address', () => {
if (!o.hash) if (!o.hash)
return; return;
const words = bech32.toWords(o.hash); const words = bech32.toWords(o.hash);
words.unshift(0x00); words.unshift(0x00);
return bech32.encode(network.bech32, words); return bech32.encode(network.bech32, words);
}); });
lazy.prop(o, 'hash', function () { lazy.prop(o, 'hash', () => {
if (a.output) if (a.output)
return a.output.slice(2); return a.output.slice(2);
if (a.address) if (a.address)
@ -69,12 +69,12 @@ function p2wsh(a, opts) {
if (o.redeem && o.redeem.output) if (o.redeem && o.redeem.output)
return bcrypto.sha256(o.redeem.output); return bcrypto.sha256(o.redeem.output);
}); });
lazy.prop(o, 'output', function () { lazy.prop(o, 'output', () => {
if (!o.hash) if (!o.hash)
return; return;
return bscript.compile([OPS.OP_0, o.hash]); return bscript.compile([OPS.OP_0, o.hash]);
}); });
lazy.prop(o, 'redeem', function () { lazy.prop(o, 'redeem', () => {
if (!a.witness) if (!a.witness)
return; return;
return { return {
@ -83,12 +83,12 @@ function p2wsh(a, opts) {
witness: a.witness.slice(0, -1), witness: a.witness.slice(0, -1),
}; };
}); });
lazy.prop(o, 'input', function () { lazy.prop(o, 'input', () => {
if (!o.witness) if (!o.witness)
return; return;
return EMPTY_BUFFER; return EMPTY_BUFFER;
}); });
lazy.prop(o, 'witness', function () { lazy.prop(o, 'witness', () => {
// transform redeem input to witness stack? // transform redeem input to witness stack?
if (a.redeem && if (a.redeem &&
a.redeem.input && a.redeem.input &&

13
src/script.js
View file

@ -1,8 +1,8 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const types = require("./types");
const scriptNumber = require("./script_number"); const scriptNumber = require("./script_number");
const scriptSignature = require("./script_signature"); const scriptSignature = require("./script_signature");
const types = require("./types");
const bip66 = require('bip66'); const bip66 = require('bip66');
const ecc = require('tiny-secp256k1'); const ecc = require('tiny-secp256k1');
const pushdata = require('pushdata-bitcoin'); const pushdata = require('pushdata-bitcoin');
@ -47,7 +47,7 @@ function compile(chunks) {
if (chunksIsBuffer(chunks)) if (chunksIsBuffer(chunks))
return chunks; return chunks;
typeforce(types.Array, chunks); typeforce(types.Array, chunks);
const bufferSize = chunks.reduce(function (accum, chunk) { const bufferSize = chunks.reduce((accum, chunk) => {
// data chunk // data chunk
if (singleChunkIsBuffer(chunk)) { if (singleChunkIsBuffer(chunk)) {
// adhere to BIP62.3, minimal push policy // adhere to BIP62.3, minimal push policy
@ -61,7 +61,7 @@ function compile(chunks) {
}, 0.0); }, 0.0);
const buffer = Buffer.allocUnsafe(bufferSize); const buffer = Buffer.allocUnsafe(bufferSize);
let offset = 0; let offset = 0;
chunks.forEach(function (chunk) { chunks.forEach(chunk => {
// data chunk // data chunk
if (singleChunkIsBuffer(chunk)) { if (singleChunkIsBuffer(chunk)) {
// adhere to BIP62.3, minimal push policy // adhere to BIP62.3, minimal push policy
@ -130,7 +130,7 @@ function toASM(chunks) {
chunks = decompile(chunks); chunks = decompile(chunks);
} }
return chunks return chunks
.map(function (chunk) { .map(chunk => {
// data? // data?
if (singleChunkIsBuffer(chunk)) { if (singleChunkIsBuffer(chunk)) {
const op = asMinimalOP(chunk); const op = asMinimalOP(chunk);
@ -146,7 +146,7 @@ function toASM(chunks) {
exports.toASM = toASM; exports.toASM = toASM;
function fromASM(asm) { function fromASM(asm) {
typeforce(types.String, asm); typeforce(types.String, asm);
return compile(asm.split(' ').map(function (chunkStr) { return compile(asm.split(' ').map(chunkStr => {
// opcode? // opcode?
if (exports.OPS[chunkStr] !== undefined) if (exports.OPS[chunkStr] !== undefined)
return exports.OPS[chunkStr]; return exports.OPS[chunkStr];
@ -159,7 +159,7 @@ exports.fromASM = fromASM;
function toStack(chunks) { function toStack(chunks) {
chunks = decompile(chunks); chunks = decompile(chunks);
typeforce(isPushOnly, chunks); typeforce(isPushOnly, chunks);
return chunks.map(function (op) { return chunks.map(op => {
if (singleChunkIsBuffer(op)) if (singleChunkIsBuffer(op))
return op; return op;
if (op === exports.OPS.OP_0) if (op === exports.OPS.OP_0)
@ -186,5 +186,6 @@ function isCanonicalScriptSignature(buffer) {
return bip66.check(buffer.slice(0, -1)); return bip66.check(buffer.slice(0, -1));
} }
exports.isCanonicalScriptSignature = isCanonicalScriptSignature; exports.isCanonicalScriptSignature = isCanonicalScriptSignature;
// tslint:disable-next-line variable-name
exports.number = scriptNumber; exports.number = scriptNumber;
exports.signature = scriptSignature; exports.signature = scriptSignature;

10
src/script_number.js
View file

@ -24,7 +24,7 @@ function decode(buffer, maxLength, minimal) {
} }
// 32-bit / 24-bit / 16-bit / 8-bit // 32-bit / 24-bit / 16-bit / 8-bit
let result = 0; let result = 0;
for (var i = 0; i < length; ++i) { for (let i = 0; i < length; ++i) {
result |= buffer[i] << (8 * i); result |= buffer[i] << (8 * i);
} }
if (buffer[length - 1] & 0x80) if (buffer[length - 1] & 0x80)
@ -45,12 +45,12 @@ function scriptNumSize(i) {
? 1 ? 1
: 0; : 0;
} }
function encode(number) { function encode(_number) {
let value = Math.abs(number); let value = Math.abs(_number);
const size = scriptNumSize(value); const size = scriptNumSize(value);
const buffer = Buffer.allocUnsafe(size); const buffer = Buffer.allocUnsafe(size);
const negative = number < 0; const negative = _number < 0;
for (var i = 0; i < size; ++i) { for (let i = 0; i < size; ++i) {
buffer.writeUInt8(value & 0xff, i); buffer.writeUInt8(value & 0xff, i);
value >>= 8; value >>= 8;
} }

12
src/script_signature.js
View file

@ -29,13 +29,11 @@ function decode(buffer) {
const hashTypeMod = hashType & ~0x80; const hashTypeMod = hashType & ~0x80;
if (hashTypeMod <= 0 || hashTypeMod >= 4) if (hashTypeMod <= 0 || hashTypeMod >= 4)
throw new Error('Invalid hashType ' + hashType); throw new Error('Invalid hashType ' + hashType);
const decode = bip66.decode(buffer.slice(0, -1)); const decoded = bip66.decode(buffer.slice(0, -1));
const r = fromDER(decode.r); const r = fromDER(decoded.r);
const s = fromDER(decode.s); const s = fromDER(decoded.s);
return { const signature = Buffer.concat([r, s], 64);
signature: Buffer.concat([r, s], 64), return { signature, hashType };
hashType: hashType,
};
} }
exports.decode = decode; exports.decode = decode;
function encode(signature, hashType) { function encode(signature, hashType) {

2
src/templates/multisig/input.js
View file

@ -18,6 +18,6 @@ function check(script, allowIncomplete) {
return chunks.slice(1).every(bscript.isCanonicalScriptSignature); return chunks.slice(1).every(bscript.isCanonicalScriptSignature);
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'multisig input'; return 'multisig input';
}; };

4
src/templates/multisig/output.js
View file

@ -2,8 +2,8 @@
// m [pubKeys ...] n OP_CHECKMULTISIG // m [pubKeys ...] n OP_CHECKMULTISIG
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const bscript = require("../../script"); const bscript = require("../../script");
const types = require("../../types");
const script_1 = require("../../script"); const script_1 = require("../../script");
const types = require("../../types");
const OP_INT_BASE = script_1.OPS.OP_RESERVED; // OP_1 - 1 const OP_INT_BASE = script_1.OPS.OP_RESERVED; // OP_1 - 1
function check(script, allowIncomplete) { function check(script, allowIncomplete) {
const chunks = bscript.decompile(script); const chunks = bscript.decompile(script);
@ -31,6 +31,6 @@ function check(script, allowIncomplete) {
return keys.every(bscript.isCanonicalPubKey); return keys.every(bscript.isCanonicalPubKey);
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'multi-sig output'; return 'multi-sig output';
}; };

2
src/templates/nulldata.js
View file

@ -8,7 +8,7 @@ function check(script) {
return buffer.length > 1 && buffer[0] === OPS.OP_RETURN; return buffer.length > 1 && buffer[0] === OPS.OP_RETURN;
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'null data output'; return 'null data output';
}; };
const output = { check }; const output = { check };

5
src/templates/pubkey/input.js
View file

@ -4,9 +4,10 @@ Object.defineProperty(exports, "__esModule", { value: true });
const bscript = require("../../script"); const bscript = require("../../script");
function check(script) { function check(script) {
const chunks = bscript.decompile(script); const chunks = bscript.decompile(script);
return (chunks.length === 1 && bscript.isCanonicalScriptSignature(chunks[0])); return (chunks.length === 1 &&
bscript.isCanonicalScriptSignature(chunks[0]));
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'pubKey input'; return 'pubKey input';
}; };

2
src/templates/pubkey/output.js
View file

@ -10,6 +10,6 @@ function check(script) {
chunks[1] === script_1.OPS.OP_CHECKSIG); chunks[1] === script_1.OPS.OP_CHECKSIG);
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'pubKey output'; return 'pubKey output';
}; };

2
src/templates/pubkeyhash/input.js
View file

@ -9,6 +9,6 @@ function check(script) {
bscript.isCanonicalPubKey(chunks[1])); bscript.isCanonicalPubKey(chunks[1]));
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'pubKeyHash input'; return 'pubKeyHash input';
}; };

2
src/templates/pubkeyhash/output.js
View file

@ -13,6 +13,6 @@ function check(script) {
buffer[24] === script_1.OPS.OP_CHECKSIG); buffer[24] === script_1.OPS.OP_CHECKSIG);
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'pubKeyHash output'; return 'pubKeyHash output';
}; };

2
src/templates/scripthash/input.js
View file

@ -39,6 +39,6 @@ function check(script, allowIncomplete) {
return false; return false;
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'scriptHash input'; return 'scriptHash input';
}; };

2
src/templates/scripthash/output.js
View file

@ -11,6 +11,6 @@ function check(script) {
buffer[22] === script_1.OPS.OP_EQUAL); buffer[22] === script_1.OPS.OP_EQUAL);
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'scriptHash output'; return 'scriptHash output';
}; };

4
src/templates/witnesscommitment/output.js
View file

@ -2,9 +2,9 @@
// OP_RETURN {aa21a9ed} {commitment} // OP_RETURN {aa21a9ed} {commitment}
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const bscript = require("../../script"); const bscript = require("../../script");
const script_1 = require("../../script");
const types = require("../../types"); const types = require("../../types");
const typeforce = require('typeforce'); const typeforce = require('typeforce');
const script_1 = require("../../script");
const HEADER = Buffer.from('aa21a9ed', 'hex'); const HEADER = Buffer.from('aa21a9ed', 'hex');
function check(script) { function check(script) {
const buffer = bscript.compile(script); const buffer = bscript.compile(script);
@ -14,7 +14,7 @@ function check(script) {
buffer.slice(2, 6).equals(HEADER)); buffer.slice(2, 6).equals(HEADER));
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'Witness commitment output'; return 'Witness commitment output';
}; };
function encode(commitment) { function encode(commitment) {

2
src/templates/witnesspubkeyhash/input.js
View file

@ -12,6 +12,6 @@ function check(script) {
isCompressedCanonicalPubKey(chunks[1])); isCompressedCanonicalPubKey(chunks[1]));
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'witnessPubKeyHash input'; return 'witnessPubKeyHash input';
}; };

2
src/templates/witnesspubkeyhash/output.js
View file

@ -8,6 +8,6 @@ function check(script) {
return buffer.length === 22 && buffer[0] === script_1.OPS.OP_0 && buffer[1] === 0x14; return buffer.length === 22 && buffer[0] === script_1.OPS.OP_0 && buffer[1] === 0x14;
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'Witness pubKeyHash output'; return 'Witness pubKeyHash output';
}; };

2
src/templates/witnessscripthash/input.js
View file

@ -31,6 +31,6 @@ function check(chunks, allowIncomplete) {
return false; return false;
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'witnessScriptHash input'; return 'witnessScriptHash input';
}; };

2
src/templates/witnessscripthash/output.js
View file

@ -8,6 +8,6 @@ function check(script) {
return buffer.length === 34 && buffer[0] === script_1.OPS.OP_0 && buffer[1] === 0x20; return buffer.length === 34 && buffer[0] === script_1.OPS.OP_0 && buffer[1] === 0x20;
} }
exports.check = check; exports.check = check;
check.toJSON = function () { check.toJSON = () => {
return 'Witness scriptHash output'; return 'Witness scriptHash output';
}; };

90
src/transaction.js
View file

@ -1,11 +1,11 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const bcrypto = require("./crypto");
const bscript = require("./script");
const types = require("./types");
const bufferutils = require("./bufferutils"); const bufferutils = require("./bufferutils");
const bufferutils_1 = require("./bufferutils"); const bufferutils_1 = require("./bufferutils");
const bcrypto = require("./crypto");
const bscript = require("./script");
const script_1 = require("./script"); const script_1 = require("./script");
const types = require("./types");
const typeforce = require('typeforce'); const typeforce = require('typeforce');
const varuint = require('varuint-bitcoin'); const varuint = require('varuint-bitcoin');
function varSliceSize(someScript) { function varSliceSize(someScript) {
@ -38,7 +38,7 @@ class Transaction {
this.ins = []; this.ins = [];
this.outs = []; this.outs = [];
} }
static fromBuffer(buffer, __noStrict) { static fromBuffer(buffer, _NO_STRICT) {
let offset = 0; let offset = 0;
function readSlice(n) { function readSlice(n) {
offset += n; offset += n;
@ -70,7 +70,7 @@ class Transaction {
function readVector() { function readVector() {
const count = readVarInt(); const count = readVarInt();
const vector = []; const vector = [];
for (var i = 0; i < count; i++) for (let i = 0; i < count; i++)
vector.push(readVarSlice()); vector.push(readVarSlice());
return vector; return vector;
} }
@ -85,7 +85,7 @@ class Transaction {
hasWitnesses = true; hasWitnesses = true;
} }
const vinLen = readVarInt(); const vinLen = readVarInt();
for (var i = 0; i < vinLen; ++i) { for (let i = 0; i < vinLen; ++i) {
tx.ins.push({ tx.ins.push({
hash: readSlice(32), hash: readSlice(32),
index: readUInt32(), index: readUInt32(),
@ -95,14 +95,14 @@ class Transaction {
}); });
} }
const voutLen = readVarInt(); const voutLen = readVarInt();
for (i = 0; i < voutLen; ++i) { for (let i = 0; i < voutLen; ++i) {
tx.outs.push({ tx.outs.push({
value: readUInt64(), value: readUInt64(),
script: readVarSlice(), script: readVarSlice(),
}); });
} }
if (hasWitnesses) { if (hasWitnesses) {
for (i = 0; i < vinLen; ++i) { for (let i = 0; i < vinLen; ++i) {
tx.ins[i].witness = readVector(); tx.ins[i].witness = readVector();
} }
// was this pointless? // was this pointless?
@ -110,7 +110,7 @@ class Transaction {
throw new Error('Transaction has superfluous witness data'); throw new Error('Transaction has superfluous witness data');
} }
tx.locktime = readUInt32(); tx.locktime = readUInt32();
if (__noStrict) if (_NO_STRICT)
return tx; return tx;
if (offset !== buffer.length) if (offset !== buffer.length)
throw new Error('Transaction has unexpected data'); throw new Error('Transaction has unexpected data');
@ -121,7 +121,7 @@ class Transaction {
} }
static isCoinbaseHash(buffer) { static isCoinbaseHash(buffer) {
typeforce(types.Hash256bit, buffer); typeforce(types.Hash256bit, buffer);
for (var i = 0; i < 32; ++i) { for (let i = 0; i < 32; ++i) {
if (buffer[i] !== 0) if (buffer[i] !== 0)
return false; return false;
} }
@ -137,8 +137,8 @@ class Transaction {
} }
// Add the input and return the input's index // Add the input and return the input's index
return (this.ins.push({ return (this.ins.push({
hash: hash, hash,
index: index, index,
script: scriptSig || EMPTY_SCRIPT, script: scriptSig || EMPTY_SCRIPT,
sequence: sequence, sequence: sequence,
witness: EMPTY_WITNESS, witness: EMPTY_WITNESS,
@ -149,7 +149,7 @@ class Transaction {
// Add the output and return the output's index // Add the output and return the output's index
return (this.outs.push({ return (this.outs.push({
script: scriptPubKey, script: scriptPubKey,
value: value, value,
}) - 1); }) - 1);
} }
hasWitnesses() { hasWitnesses() {
@ -168,23 +168,6 @@ class Transaction {
byteLength() { byteLength() {
return this.__byteLength(true); return this.__byteLength(true);
} }
__byteLength(__allowWitness) {
const hasWitnesses = __allowWitness && this.hasWitnesses();
return ((hasWitnesses ? 10 : 8) +
varuint.encodingLength(this.ins.length) +
varuint.encodingLength(this.outs.length) +
this.ins.reduce((sum, input) => {
return sum + 40 + varSliceSize(input.script);
}, 0) +
this.outs.reduce((sum, output) => {
return sum + 8 + varSliceSize(output.script);
}, 0) +
(hasWitnesses
? this.ins.reduce((sum, input) => {
return sum + vectorSize(input.witness);
}, 0)
: 0));
}
clone() { clone() {
const newTx = new Transaction(); const newTx = new Transaction();
newTx.version = this.version; newTx.version = this.version;
@ -242,7 +225,7 @@ class Transaction {
// truncate outputs after // truncate outputs after
txTmp.outs.length = inIndex + 1; txTmp.outs.length = inIndex + 1;
// "blank" outputs before // "blank" outputs before
for (var i = 0; i < inIndex; i++) { for (let i = 0; i < inIndex; i++) {
txTmp.outs[i] = BLANK_OUTPUT; txTmp.outs[i] = BLANK_OUTPUT;
} }
// ignore sequence numbers (except at inIndex) // ignore sequence numbers (except at inIndex)
@ -365,9 +348,37 @@ class Transaction {
toBuffer(buffer, initialOffset) { toBuffer(buffer, initialOffset) {
return this.__toBuffer(buffer, initialOffset, true); return this.__toBuffer(buffer, initialOffset, true);
} }
__toBuffer(buffer, initialOffset, __allowWitness) { toHex() {
return this.toBuffer(undefined, undefined).toString('hex');
}
setInputScript(index, scriptSig) {
typeforce(types.tuple(types.Number, types.Buffer), arguments);
this.ins[index].script = scriptSig;
}
setWitness(index, witness) {
typeforce(types.tuple(types.Number, [types.Buffer]), arguments);
this.ins[index].witness = witness;
}
__byteLength(_ALLOW_WITNESS) {
const hasWitnesses = _ALLOW_WITNESS && this.hasWitnesses();
return ((hasWitnesses ? 10 : 8) +
varuint.encodingLength(this.ins.length) +
varuint.encodingLength(this.outs.length) +
this.ins.reduce((sum, input) => {
return sum + 40 + varSliceSize(input.script);
}, 0) +
this.outs.reduce((sum, output) => {
return sum + 8 + varSliceSize(output.script);
}, 0) +
(hasWitnesses
? this.ins.reduce((sum, input) => {
return sum + vectorSize(input.witness);
}, 0)
: 0));
}
__toBuffer(buffer, initialOffset, _ALLOW_WITNESS) {
if (!buffer) if (!buffer)
buffer = Buffer.allocUnsafe(this.__byteLength(__allowWitness)); buffer = Buffer.allocUnsafe(this.__byteLength(_ALLOW_WITNESS));
let offset = initialOffset || 0; let offset = initialOffset || 0;
function writeSlice(slice) { function writeSlice(slice) {
offset += slice.copy(buffer, offset); offset += slice.copy(buffer, offset);
@ -397,7 +408,7 @@ class Transaction {
vector.forEach(writeVarSlice); vector.forEach(writeVarSlice);
} }
writeInt32(this.version); writeInt32(this.version);
const hasWitnesses = __allowWitness && this.hasWitnesses(); const hasWitnesses = _ALLOW_WITNESS && this.hasWitnesses();
if (hasWitnesses) { if (hasWitnesses) {
writeUInt8(Transaction.ADVANCED_TRANSACTION_MARKER); writeUInt8(Transaction.ADVANCED_TRANSACTION_MARKER);
writeUInt8(Transaction.ADVANCED_TRANSACTION_FLAG); writeUInt8(Transaction.ADVANCED_TRANSACTION_FLAG);
@ -430,17 +441,6 @@ class Transaction {
return buffer.slice(initialOffset, offset); return buffer.slice(initialOffset, offset);
return buffer; return buffer;
} }
toHex() {
return this.toBuffer(undefined, undefined).toString('hex');
}
setInputScript(index, scriptSig) {
typeforce(types.tuple(types.Number, types.Buffer), arguments);
this.ins[index].script = scriptSig;
}
setWitness(index, witness) {
typeforce(types.tuple(types.Number, [types.Buffer]), arguments);
this.ins[index].witness = witness;
}
} }
Transaction.DEFAULT_SEQUENCE = 0xffffffff; Transaction.DEFAULT_SEQUENCE = 0xffffffff;
Transaction.SIGHASH_ALL = 0x01; Transaction.SIGHASH_ALL = 0x01;

247
src/transaction_builder.js
View file

@ -1,16 +1,16 @@
"use strict"; "use strict";
Object.defineProperty(exports, "__esModule", { value: true }); Object.defineProperty(exports, "__esModule", { value: true });
const networks = require("./networks");
const bufferutils_1 = require("./bufferutils");
const transaction_1 = require("./transaction");
const ECPair = require("./ecpair");
const types = require("./types");
const baddress = require("./address"); const baddress = require("./address");
const bcrypto = require("./crypto"); const bufferutils_1 = require("./bufferutils");
const bscript = require("./script");
const payments = require("./payments");
const classify = require("./classify"); const classify = require("./classify");
const bcrypto = require("./crypto");
const ECPair = require("./ecpair");
const networks = require("./networks");
const payments = require("./payments");
const bscript = require("./script");
const script_1 = require("./script"); const script_1 = require("./script");
const transaction_1 = require("./transaction");
const types = require("./types");
const typeforce = require('typeforce'); const typeforce = require('typeforce');
const SCRIPT_TYPES = classify.types; const SCRIPT_TYPES = classify.types;
function txIsString(tx) { function txIsString(tx) {
@ -20,15 +20,6 @@ function txIsTransaction(tx) {
return tx instanceof transaction_1.Transaction; return tx instanceof transaction_1.Transaction;
} }
class TransactionBuilder { class TransactionBuilder {
constructor(network, maximumFeeRate) {
this.__prevTxSet = {};
this.network = network || networks.bitcoin;
// WARNING: This is __NOT__ to be relied on, its just another potential safety mechanism (safety in-depth)
this.maximumFeeRate = maximumFeeRate || 2500;
this.__inputs = [];
this.__tx = new transaction_1.Transaction();
this.__tx.version = 2;
}
static fromTransaction(transaction, network) { static fromTransaction(transaction, network) {
const txb = new TransactionBuilder(network); const txb = new TransactionBuilder(network);
// Copy transaction fields // Copy transaction fields
@ -47,33 +38,42 @@ class TransactionBuilder {
}); });
}); });
// fix some things not possible through the public API // fix some things not possible through the public API
txb.__inputs.forEach((input, i) => { txb.__INPUTS.forEach((input, i) => {
fixMultisigOrder(input, transaction, i); fixMultisigOrder(input, transaction, i);
}); });
return txb; return txb;
} }
constructor(network, maximumFeeRate) {
this.__PREV_TX_SET = {};
this.network = network || networks.bitcoin;
// WARNING: This is __NOT__ to be relied on, its just another potential safety mechanism (safety in-depth)
this.maximumFeeRate = maximumFeeRate || 2500;
this.__INPUTS = [];
this.__TX = new transaction_1.Transaction();
this.__TX.version = 2;
}
setLockTime(locktime) { setLockTime(locktime) {
typeforce(types.UInt32, locktime); typeforce(types.UInt32, locktime);
// if any signatures exist, throw // if any signatures exist, throw
if (this.__inputs.some(input => { if (this.__INPUTS.some(input => {
if (!input.signatures) if (!input.signatures)
return false; return false;
return input.signatures.some(s => s !== undefined); return input.signatures.some(s => s !== undefined);
})) { })) {
throw new Error('No, this would invalidate signatures'); throw new Error('No, this would invalidate signatures');
} }
this.__tx.locktime = locktime; this.__TX.locktime = locktime;
} }
setVersion(version) { setVersion(version) {
typeforce(types.UInt32, version); typeforce(types.UInt32, version);
// XXX: this might eventually become more complex depending on what the versions represent // XXX: this might eventually become more complex depending on what the versions represent
this.__tx.version = version; this.__TX.version = version;
} }
addInput(txHash, vout, sequence, prevOutScript) { addInput(txHash, vout, sequence, prevOutScript) {
if (!this.__canModifyInputs()) { if (!this.__canModifyInputs()) {
throw new Error('No, this would invalidate signatures'); throw new Error('No, this would invalidate signatures');
} }
let value = undefined; let value;
// is it a hex string? // is it a hex string?
if (txIsString(txHash)) { if (txIsString(txHash)) {
// transaction hashs's are displayed in reverse order, un-reverse it // transaction hashs's are displayed in reverse order, un-reverse it
@ -87,17 +87,90 @@ class TransactionBuilder {
txHash = txHash.getHash(false); txHash = txHash.getHash(false);
} }
return this.__addInputUnsafe(txHash, vout, { return this.__addInputUnsafe(txHash, vout, {
sequence: sequence, sequence,
prevOutScript: prevOutScript, prevOutScript,
value: value, value,
}); });
} }
addOutput(scriptPubKey, value) {
if (!this.__canModifyOutputs()) {
throw new Error('No, this would invalidate signatures');
}
// Attempt to get a script if it's a base58 or bech32 address string
if (typeof scriptPubKey === 'string') {
scriptPubKey = baddress.toOutputScript(scriptPubKey, this.network);
}
return this.__TX.addOutput(scriptPubKey, value);
}
build() {
return this.__build(false);
}
buildIncomplete() {
return this.__build(true);
}
sign(vin, keyPair, redeemScript, hashType, witnessValue, witnessScript) {
// TODO: remove keyPair.network matching in 4.0.0
if (keyPair.network && keyPair.network !== this.network)
throw new TypeError('Inconsistent network');
if (!this.__INPUTS[vin])
throw new Error('No input at index: ' + vin);
hashType = hashType || transaction_1.Transaction.SIGHASH_ALL;
if (this.__needsOutputs(hashType))
throw new Error('Transaction needs outputs');
const input = this.__INPUTS[vin];
// if redeemScript was previously provided, enforce consistency
if (input.redeemScript !== undefined &&
redeemScript &&
!input.redeemScript.equals(redeemScript)) {
throw new Error('Inconsistent redeemScript');
}
const ourPubKey = keyPair.publicKey || keyPair.getPublicKey();
if (!canSign(input)) {
if (witnessValue !== undefined) {
if (input.value !== undefined && input.value !== witnessValue)
throw new Error('Input did not match witnessValue');
typeforce(types.Satoshi, witnessValue);
input.value = witnessValue;
}
if (!canSign(input)) {
const prepared = prepareInput(input, ourPubKey, redeemScript, witnessScript);
// updates inline
Object.assign(input, prepared);
}
if (!canSign(input))
throw Error(input.prevOutType + ' not supported');
}
// ready to sign
let signatureHash;
if (input.hasWitness) {
signatureHash = this.__TX.hashForWitnessV0(vin, input.signScript, input.value, hashType);
}
else {
signatureHash = this.__TX.hashForSignature(vin, input.signScript, hashType);
}
// enforce in order signing of public keys
const signed = input.pubkeys.some((pubKey, i) => {
if (!ourPubKey.equals(pubKey))
return false;
if (input.signatures[i])
throw new Error('Signature already exists');
// TODO: add tests
if (ourPubKey.length !== 33 && input.hasWitness) {
throw new Error('BIP143 rejects uncompressed public keys in P2WPKH or P2WSH');
}
const signature = keyPair.sign(signatureHash);
input.signatures[i] = bscript.signature.encode(signature, hashType);
return true;
});
if (!signed)
throw new Error('Key pair cannot sign for this input');
}
__addInputUnsafe(txHash, vout, options) { __addInputUnsafe(txHash, vout, options) {
if (transaction_1.Transaction.isCoinbaseHash(txHash)) { if (transaction_1.Transaction.isCoinbaseHash(txHash)) {
throw new Error('coinbase inputs not supported'); throw new Error('coinbase inputs not supported');
} }
const prevTxOut = txHash.toString('hex') + ':' + vout; const prevTxOut = txHash.toString('hex') + ':' + vout;
if (this.__prevTxSet[prevTxOut] !== undefined) if (this.__PREV_TX_SET[prevTxOut] !== undefined)
throw new Error('Duplicate TxOut: ' + prevTxOut); throw new Error('Duplicate TxOut: ' + prevTxOut);
let input = {}; let input = {};
// derive what we can from the scriptSig // derive what we can from the scriptSig
@ -122,37 +195,21 @@ class TransactionBuilder {
input.prevOutScript = options.prevOutScript; input.prevOutScript = options.prevOutScript;
input.prevOutType = prevOutType || classify.output(options.prevOutScript); input.prevOutType = prevOutType || classify.output(options.prevOutScript);
} }
const vin = this.__tx.addInput(txHash, vout, options.sequence, options.scriptSig); const vin = this.__TX.addInput(txHash, vout, options.sequence, options.scriptSig);
this.__inputs[vin] = input; this.__INPUTS[vin] = input;
this.__prevTxSet[prevTxOut] = true; this.__PREV_TX_SET[prevTxOut] = true;
return vin; return vin;
} }
addOutput(scriptPubKey, value) {
if (!this.__canModifyOutputs()) {
throw new Error('No, this would invalidate signatures');
}
// Attempt to get a script if it's a base58 or bech32 address string
if (typeof scriptPubKey === 'string') {
scriptPubKey = baddress.toOutputScript(scriptPubKey, this.network);
}
return this.__tx.addOutput(scriptPubKey, value);
}
build() {
return this.__build(false);
}
buildIncomplete() {
return this.__build(true);
}
__build(allowIncomplete) { __build(allowIncomplete) {
if (!allowIncomplete) { if (!allowIncomplete) {
if (!this.__tx.ins.length) if (!this.__TX.ins.length)
throw new Error('Transaction has no inputs'); throw new Error('Transaction has no inputs');
if (!this.__tx.outs.length) if (!this.__TX.outs.length)
throw new Error('Transaction has no outputs'); throw new Error('Transaction has no outputs');
} }
const tx = this.__tx.clone(); const tx = this.__TX.clone();
// create script signatures from inputs // create script signatures from inputs
this.__inputs.forEach((input, i) => { this.__INPUTS.forEach((input, i) => {
if (!input.prevOutType && !allowIncomplete) if (!input.prevOutType && !allowIncomplete)
throw new Error('Transaction is not complete'); throw new Error('Transaction is not complete');
const result = build(input.prevOutType, input, allowIncomplete); const result = build(input.prevOutType, input, allowIncomplete);
@ -174,65 +231,8 @@ class TransactionBuilder {
} }
return tx; return tx;
} }
sign(vin, keyPair, redeemScript, hashType, witnessValue, witnessScript) {
// TODO: remove keyPair.network matching in 4.0.0
if (keyPair.network && keyPair.network !== this.network)
throw new TypeError('Inconsistent network');
if (!this.__inputs[vin])
throw new Error('No input at index: ' + vin);
hashType = hashType || transaction_1.Transaction.SIGHASH_ALL;
if (this.__needsOutputs(hashType))
throw new Error('Transaction needs outputs');
const input = this.__inputs[vin];
// if redeemScript was previously provided, enforce consistency
if (input.redeemScript !== undefined &&
redeemScript &&
!input.redeemScript.equals(redeemScript)) {
throw new Error('Inconsistent redeemScript');
}
const ourPubKey = keyPair.publicKey || keyPair.getPublicKey();
if (!canSign(input)) {
if (witnessValue !== undefined) {
if (input.value !== undefined && input.value !== witnessValue)
throw new Error("Input didn't match witnessValue");
typeforce(types.Satoshi, witnessValue);
input.value = witnessValue;
}
if (!canSign(input)) {
const prepared = prepareInput(input, ourPubKey, redeemScript, witnessScript);
// updates inline
Object.assign(input, prepared);
}
if (!canSign(input))
throw Error(input.prevOutType + ' not supported');
}
// ready to sign
let signatureHash;
if (input.hasWitness) {
signatureHash = this.__tx.hashForWitnessV0(vin, input.signScript, input.value, hashType);
}
else {
signatureHash = this.__tx.hashForSignature(vin, input.signScript, hashType);
}
// enforce in order signing of public keys
const signed = input.pubkeys.some((pubKey, i) => {
if (!ourPubKey.equals(pubKey))
return false;
if (input.signatures[i])
throw new Error('Signature already exists');
// TODO: add tests
if (ourPubKey.length !== 33 && input.hasWitness) {
throw new Error('BIP143 rejects uncompressed public keys in P2WPKH or P2WSH');
}
const signature = keyPair.sign(signatureHash);
input.signatures[i] = bscript.signature.encode(signature, hashType);
return true;
});
if (!signed)
throw new Error('Key pair cannot sign for this input');
}
__canModifyInputs() { __canModifyInputs() {
return this.__inputs.every(input => { return this.__INPUTS.every(input => {
if (!input.signatures) if (!input.signatures)
return true; return true;
return input.signatures.every(signature => { return input.signatures.every(signature => {
@ -247,12 +247,12 @@ class TransactionBuilder {
} }
__needsOutputs(signingHashType) { __needsOutputs(signingHashType) {
if (signingHashType === transaction_1.Transaction.SIGHASH_ALL) { if (signingHashType === transaction_1.Transaction.SIGHASH_ALL) {
return this.__tx.outs.length === 0; return this.__TX.outs.length === 0;
} }
// if inputs are being signed with SIGHASH_NONE, we don't strictly need outputs // if inputs are being signed with SIGHASH_NONE, we don't strictly need outputs
// .build() will fail, but .buildIncomplete() is OK // .build() will fail, but .buildIncomplete() is OK
return (this.__tx.outs.length === 0 && return (this.__TX.outs.length === 0 &&
this.__inputs.some(input => { this.__INPUTS.some(input => {
if (!input.signatures) if (!input.signatures)
return false; return false;
return input.signatures.some(signature => { return input.signatures.some(signature => {
@ -266,9 +266,9 @@ class TransactionBuilder {
})); }));
} }
__canModifyOutputs() { __canModifyOutputs() {
const nInputs = this.__tx.ins.length; const nInputs = this.__TX.ins.length;
const nOutputs = this.__tx.outs.length; const nOutputs = this.__TX.outs.length;
return this.__inputs.every(input => { return this.__INPUTS.every(input => {
if (input.signatures === undefined) if (input.signatures === undefined)
return true; return true;
return input.signatures.every(signature => { return input.signatures.every(signature => {
@ -290,10 +290,10 @@ class TransactionBuilder {
} }
__overMaximumFees(bytes) { __overMaximumFees(bytes) {
// not all inputs will have .value defined // not all inputs will have .value defined
const incoming = this.__inputs.reduce((a, x) => a + (x.value >>> 0), 0); const incoming = this.__INPUTS.reduce((a, x) => a + (x.value >>> 0), 0);
// but all outputs do, and if we have any input value // but all outputs do, and if we have any input value
// we can immediately determine if the outputs are too small // we can immediately determine if the outputs are too small
const outgoing = this.__tx.outs.reduce((a, x) => a + x.value, 0); const outgoing = this.__TX.outs.reduce((a, x) => a + x.value, 0);
const fee = incoming - outgoing; const fee = incoming - outgoing;
const feeRate = fee / bytes; const feeRate = fee / bytes;
return feeRate > this.maximumFeeRate; return feeRate > this.maximumFeeRate;
@ -350,8 +350,8 @@ function expandInput(scriptSig, witnessStack, type, scriptPubKey) {
}, { allowIncomplete: true }); }, { allowIncomplete: true });
return { return {
prevOutType: SCRIPT_TYPES.P2MS, prevOutType: SCRIPT_TYPES.P2MS,
pubkeys: pubkeys, pubkeys,
signatures: signatures, signatures,
maxSignatures: m, maxSignatures: m,
}; };
} }
@ -488,7 +488,9 @@ function expandOutput(script, ourPubKey) {
} }
function prepareInput(input, ourPubKey, redeemScript, witnessScript) { function prepareInput(input, ourPubKey, redeemScript, witnessScript) {
if (redeemScript && witnessScript) { if (redeemScript && witnessScript) {
const p2wsh = (payments.p2wsh({ redeem: { output: witnessScript } })); const p2wsh = payments.p2wsh({
redeem: { output: witnessScript },
});
const p2wshAlt = payments.p2wsh({ output: redeemScript }); const p2wshAlt = payments.p2wsh({ output: redeemScript });
const p2sh = payments.p2sh({ redeem: { output: redeemScript } }); const p2sh = payments.p2sh({ redeem: { output: redeemScript } });
const p2shAlt = payments.p2sh({ redeem: p2wsh }); const p2shAlt = payments.p2sh({ redeem: p2wsh });
@ -506,7 +508,7 @@ function prepareInput(input, ourPubKey, redeemScript, witnessScript) {
if (input.signatures && input.signatures.some(x => x !== undefined)) { if (input.signatures && input.signatures.some(x => x !== undefined)) {
expanded.signatures = input.signatures; expanded.signatures = input.signatures;
} }
let signScript = witnessScript; const signScript = witnessScript;
if (expanded.type === SCRIPT_TYPES.P2WPKH) if (expanded.type === SCRIPT_TYPES.P2WPKH)
throw new Error('P2SH(P2WSH(P2WPKH)) is a consensus failure'); throw new Error('P2SH(P2WSH(P2WPKH)) is a consensus failure');
return { return {
@ -579,7 +581,7 @@ function prepareInput(input, ourPubKey, redeemScript, witnessScript) {
if (input.signatures && input.signatures.some(x => x !== undefined)) { if (input.signatures && input.signatures.some(x => x !== undefined)) {
expanded.signatures = input.signatures; expanded.signatures = input.signatures;
} }
let signScript = witnessScript; const signScript = witnessScript;
if (expanded.type === SCRIPT_TYPES.P2WPKH) if (expanded.type === SCRIPT_TYPES.P2WPKH)
throw new Error('P2WSH(P2WPKH) is a consensus failure'); throw new Error('P2WSH(P2WPKH) is a consensus failure');
return { return {
@ -614,7 +616,8 @@ function prepareInput(input, ourPubKey, redeemScript, witnessScript) {
} }
let signScript = input.prevOutScript; let signScript = input.prevOutScript;
if (expanded.type === SCRIPT_TYPES.P2WPKH) { if (expanded.type === SCRIPT_TYPES.P2WPKH) {
signScript = (payments.p2pkh({ pubkey: expanded.pubkeys[0] }).output); signScript = payments.p2pkh({ pubkey: expanded.pubkeys[0] })
.output;
} }
return { return {
prevOutType: expanded.type, prevOutType: expanded.type,
@ -630,7 +633,7 @@ function prepareInput(input, ourPubKey, redeemScript, witnessScript) {
const prevOutScript = payments.p2pkh({ pubkey: ourPubKey }).output; const prevOutScript = payments.p2pkh({ pubkey: ourPubKey }).output;
return { return {
prevOutType: SCRIPT_TYPES.P2PKH, prevOutType: SCRIPT_TYPES.P2PKH,
prevOutScript: prevOutScript, prevOutScript,
hasWitness: false, hasWitness: false,
signScript: prevOutScript, signScript: prevOutScript,
signType: SCRIPT_TYPES.P2PKH, signType: SCRIPT_TYPES.P2PKH,

8
src/types.js
View file

@ -10,7 +10,7 @@ function BIP32Path(value) {
return typeforce.String(value) && !!value.match(/^(m\/)?(\d+'?\/)*\d+'?$/); return typeforce.String(value) && !!value.match(/^(m\/)?(\d+'?\/)*\d+'?$/);
} }
exports.BIP32Path = BIP32Path; exports.BIP32Path = BIP32Path;
BIP32Path.toJSON = function () { BIP32Path.toJSON = () => {
return 'BIP32 derivation path'; return 'BIP32 derivation path';
}; };
const SATOSHI_MAX = 21 * 1e14; const SATOSHI_MAX = 21 * 1e14;
@ -34,10 +34,10 @@ exports.Network = typeforce.compile({
exports.Buffer256bit = typeforce.BufferN(32); exports.Buffer256bit = typeforce.BufferN(32);
exports.Hash160bit = typeforce.BufferN(20); exports.Hash160bit = typeforce.BufferN(20);
exports.Hash256bit = typeforce.BufferN(32); exports.Hash256bit = typeforce.BufferN(32);
exports.Number = typeforce.Number; exports.Number = typeforce.Number; // tslint:disable-line variable-name
exports.Array = typeforce.Array; exports.Array = typeforce.Array;
exports.Boolean = typeforce.Boolean; exports.Boolean = typeforce.Boolean; // tslint:disable-line variable-name
exports.String = typeforce.String; exports.String = typeforce.String; // tslint:disable-line variable-name
exports.Buffer = typeforce.Buffer; exports.Buffer = typeforce.Buffer;
exports.Hex = typeforce.Hex; exports.Hex = typeforce.Hex;
exports.maybe = typeforce.maybe; exports.maybe = typeforce.maybe;

2
test/ecpair.js
View file

@ -238,7 +238,7 @@ describe('ECPair', function () {
})) }))
it('throws if no private key is found', function () { it('throws if no private key is found', function () {
delete keyPair.__d delete keyPair.__D
assert.throws(function () { assert.throws(function () {
keyPair.sign(hash) keyPair.sign(hash)

2
test/fixtures/transaction_builder.json vendored
View file

@ -1976,7 +1976,7 @@
"sign": [ "sign": [
{ {
"description": "Transaction w/ witness value mismatch", "description": "Transaction w/ witness value mismatch",
"exception": "Input didn\\'t match witnessValue", "exception": "Input did not match witnessValue",
"network": "testnet", "network": "testnet",
"inputs": [ "inputs": [
{ {

26
test/transaction_builder.js
View file

@ -164,7 +164,7 @@ describe('TransactionBuilder', function () {
const tx = Transaction.fromHex(fixtures.valid.classification.hex) const tx = Transaction.fromHex(fixtures.valid.classification.hex)
const txb = TransactionBuilder.fromTransaction(tx) const txb = TransactionBuilder.fromTransaction(tx)
txb.__inputs.forEach(function (i) { txb.__INPUTS.forEach(function (i) {
assert.strictEqual(i.prevOutType, 'scripthash') assert.strictEqual(i.prevOutType, 'scripthash')
assert.strictEqual(i.redeemScriptType, 'multisig') assert.strictEqual(i.redeemScriptType, 'multisig')
}) })
@ -191,22 +191,22 @@ describe('TransactionBuilder', function () {
const vin = txb.addInput(txHash, 1, 54) const vin = txb.addInput(txHash, 1, 54)
assert.strictEqual(vin, 0) assert.strictEqual(vin, 0)
const txIn = txb.__tx.ins[0] const txIn = txb.__TX.ins[0]
assert.strictEqual(txIn.hash, txHash) assert.strictEqual(txIn.hash, txHash)
assert.strictEqual(txIn.index, 1) assert.strictEqual(txIn.index, 1)
assert.strictEqual(txIn.sequence, 54) assert.strictEqual(txIn.sequence, 54)
assert.strictEqual(txb.__inputs[0].prevOutScript, undefined) assert.strictEqual(txb.__INPUTS[0].prevOutScript, undefined)
}) })
it('accepts a txHash, index [, sequence number and scriptPubKey]', function () { it('accepts a txHash, index [, sequence number and scriptPubKey]', function () {
const vin = txb.addInput(txHash, 1, 54, scripts[1]) const vin = txb.addInput(txHash, 1, 54, scripts[1])
assert.strictEqual(vin, 0) assert.strictEqual(vin, 0)
const txIn = txb.__tx.ins[0] const txIn = txb.__TX.ins[0]
assert.strictEqual(txIn.hash, txHash) assert.strictEqual(txIn.hash, txHash)
assert.strictEqual(txIn.index, 1) assert.strictEqual(txIn.index, 1)
assert.strictEqual(txIn.sequence, 54) assert.strictEqual(txIn.sequence, 54)
assert.strictEqual(txb.__inputs[0].prevOutScript, scripts[1]) assert.strictEqual(txb.__INPUTS[0].prevOutScript, scripts[1])
}) })
it('accepts a prevTx, index [and sequence number]', function () { it('accepts a prevTx, index [and sequence number]', function () {
@ -217,11 +217,11 @@ describe('TransactionBuilder', function () {
const vin = txb.addInput(prevTx, 1, 54) const vin = txb.addInput(prevTx, 1, 54)
assert.strictEqual(vin, 0) assert.strictEqual(vin, 0)
const txIn = txb.__tx.ins[0] const txIn = txb.__TX.ins[0]
assert.deepEqual(txIn.hash, prevTx.getHash()) assert.deepEqual(txIn.hash, prevTx.getHash())
assert.strictEqual(txIn.index, 1) assert.strictEqual(txIn.index, 1)
assert.strictEqual(txIn.sequence, 54) assert.strictEqual(txIn.sequence, 54)
assert.strictEqual(txb.__inputs[0].prevOutScript, scripts[1]) assert.strictEqual(txb.__INPUTS[0].prevOutScript, scripts[1])
}) })
it('returns the input index', function () { it('returns the input index', function () {
@ -251,7 +251,7 @@ describe('TransactionBuilder', function () {
const vout = txb.addOutput(address, 1000) const vout = txb.addOutput(address, 1000)
assert.strictEqual(vout, 0) assert.strictEqual(vout, 0)
const txout = txb.__tx.outs[0] const txout = txb.__TX.outs[0]
assert.deepEqual(txout.script, scripts[0]) assert.deepEqual(txout.script, scripts[0])
assert.strictEqual(txout.value, 1000) assert.strictEqual(txout.value, 1000)
}) })
@ -260,7 +260,7 @@ describe('TransactionBuilder', function () {
const vout = txb.addOutput(scripts[0], 1000) const vout = txb.addOutput(scripts[0], 1000)
assert.strictEqual(vout, 0) assert.strictEqual(vout, 0)
const txout = txb.__tx.outs[0] const txout = txb.__TX.outs[0]
assert.deepEqual(txout.script, scripts[0]) assert.deepEqual(txout.script, scripts[0])
assert.strictEqual(txout.value, 1000) assert.strictEqual(txout.value, 1000)
}) })
@ -533,10 +533,10 @@ describe('TransactionBuilder', function () {
'194a565cd6aa4cc38b8eaffa343402201c5b4b61d73fa38e49c1ee68cc0e6dfd2f5dae453dd86eb142e87a' + '194a565cd6aa4cc38b8eaffa343402201c5b4b61d73fa38e49c1ee68cc0e6dfd2f5dae453dd86eb142e87a' +
'0bafb1bc8401210283409659355b6d1cc3c32decd5d561abaac86c37a353b52895a5e6c196d6f44800000000' '0bafb1bc8401210283409659355b6d1cc3c32decd5d561abaac86c37a353b52895a5e6c196d6f44800000000'
const txb = TransactionBuilder.fromTransaction(Transaction.fromHex(rawtx)) const txb = TransactionBuilder.fromTransaction(Transaction.fromHex(rawtx))
txb.__inputs[0].value = 241530 txb.__INPUTS[0].value = 241530
txb.__inputs[1].value = 241530 txb.__INPUTS[1].value = 241530
txb.__inputs[2].value = 248920 txb.__INPUTS[2].value = 248920
txb.__inputs[3].value = 248920 txb.__INPUTS[3].value = 248920
assert.throws(function () { assert.throws(function () {
txb.build() txb.build()

36
ts_src/address.ts
View file

@ -1,23 +1,23 @@
import { Network } from './networks'; import { Network } from './networks';
import * as types from './types';
import * as bscript from './script';
import * as networks from './networks'; import * as networks from './networks';
import * as payments from './payments'; import * as payments from './payments';
import * as bscript from './script';
import * as types from './types';
const bech32 = require('bech32'); const bech32 = require('bech32');
const bs58check = require('bs58check'); const bs58check = require('bs58check');
const typeforce = require('typeforce'); const typeforce = require('typeforce');
export type Base58CheckResult = { export interface Base58CheckResult {
hash: Buffer; hash: Buffer;
version: number; version: number;
}; }
export type Bech32Result = { export interface Bech32Result {
version: number; version: number;
prefix: string; prefix: string;
data: Buffer; data: Buffer;
}; }
export function fromBase58Check(address: string): Base58CheckResult { export function fromBase58Check(address: string): Base58CheckResult {
const payload = bs58check.decode(address); const payload = bs58check.decode(address);
@ -29,7 +29,7 @@ export function fromBase58Check(address: string): Base58CheckResult {
const version = payload.readUInt8(0); const version = payload.readUInt8(0);
const hash = payload.slice(1); const hash = payload.slice(1);
return { version: version, hash: hash }; return { version, hash };
} }
export function fromBech32(address: string): Bech32Result { export function fromBech32(address: string): Bech32Result {
@ -65,20 +65,20 @@ export function toBech32(
} }
export function fromOutputScript(output: Buffer, network: Network): string { export function fromOutputScript(output: Buffer, network: Network): string {
//TODO: Network // TODO: Network
network = network || networks.bitcoin; network = network || networks.bitcoin;
try { try {
return <string>payments.p2pkh({ output, network }).address; return payments.p2pkh({ output, network }).address as string;
} catch (e) {} } catch (e) {}
try { try {
return <string>payments.p2sh({ output, network }).address; return payments.p2sh({ output, network }).address as string;
} catch (e) {} } catch (e) {}
try { try {
return <string>payments.p2wpkh({ output, network }).address; return payments.p2wpkh({ output, network }).address as string;
} catch (e) {} } catch (e) {}
try { try {
return <string>payments.p2wsh({ output, network }).address; return payments.p2wsh({ output, network }).address as string;
} catch (e) {} } catch (e) {}
throw new Error(bscript.toASM(output) + ' has no matching Address'); throw new Error(bscript.toASM(output) + ' has no matching Address');
@ -87,17 +87,17 @@ export function fromOutputScript(output: Buffer, network: Network): string {
export function toOutputScript(address: string, network: Network): Buffer { export function toOutputScript(address: string, network: Network): Buffer {
network = network || networks.bitcoin; network = network || networks.bitcoin;
let decodeBase58: Base58CheckResult | undefined = undefined; let decodeBase58: Base58CheckResult | undefined;
let decodeBech32: Bech32Result | undefined = undefined; let decodeBech32: Bech32Result | undefined;
try { try {
decodeBase58 = fromBase58Check(address); decodeBase58 = fromBase58Check(address);
} catch (e) {} } catch (e) {}
if (decodeBase58) { if (decodeBase58) {
if (decodeBase58.version === network.pubKeyHash) if (decodeBase58.version === network.pubKeyHash)
return <Buffer>payments.p2pkh({ hash: decodeBase58.hash }).output; return payments.p2pkh({ hash: decodeBase58.hash }).output as Buffer;
if (decodeBase58.version === network.scriptHash) if (decodeBase58.version === network.scriptHash)
return <Buffer>payments.p2sh({ hash: decodeBase58.hash }).output; return payments.p2sh({ hash: decodeBase58.hash }).output as Buffer;
} else { } else {
try { try {
decodeBech32 = fromBech32(address); decodeBech32 = fromBech32(address);
@ -108,9 +108,9 @@ export function toOutputScript(address: string, network: Network): Buffer {
throw new Error(address + ' has an invalid prefix'); throw new Error(address + ' has an invalid prefix');
if (decodeBech32.version === 0) { if (decodeBech32.version === 0) {
if (decodeBech32.data.length === 20) if (decodeBech32.data.length === 20)
return <Buffer>payments.p2wpkh({ hash: decodeBech32.data }).output; return payments.p2wpkh({ hash: decodeBech32.data }).output as Buffer;
if (decodeBech32.data.length === 32) if (decodeBech32.data.length === 32)
return <Buffer>payments.p2wsh({ hash: decodeBech32.data }).output; return payments.p2wsh({ hash: decodeBech32.data }).output as Buffer;
} }
} }
} }

78
ts_src/block.ts
View file

@ -1,7 +1,7 @@
import { reverseBuffer } from './bufferutils';
import * as bcrypto from './crypto';
import { Transaction } from './transaction'; import { Transaction } from './transaction';
import * as types from './types'; import * as types from './types';
import * as bcrypto from './crypto';
import { reverseBuffer } from './bufferutils';
const fastMerkleRoot = require('merkle-lib/fastRoot'); const fastMerkleRoot = require('merkle-lib/fastRoot');
const typeforce = require('typeforce'); const typeforce = require('typeforce');
@ -14,7 +14,7 @@ const errorWitnessNotSegwit = new TypeError(
'Cannot compute witness commit for non-segwit block', 'Cannot compute witness commit for non-segwit block',
); );
function txesHaveWitnessCommit(transactions: Array<Transaction>): boolean { function txesHaveWitnessCommit(transactions: Transaction[]): boolean {
return ( return (
transactions instanceof Array && transactions instanceof Array &&
transactions[0] && transactions[0] &&
@ -27,7 +27,7 @@ function txesHaveWitnessCommit(transactions: Array<Transaction>): boolean {
); );
} }
function anyTxHasWitness(transactions: Array<Transaction>): boolean { function anyTxHasWitness(transactions: Transaction[]): boolean {
return ( return (
transactions instanceof Array && transactions instanceof Array &&
transactions.some( transactions.some(
@ -45,26 +45,6 @@ function anyTxHasWitness(transactions: Array<Transaction>): boolean {
} }
export class Block { export class Block {
version: number;
prevHash?: Buffer;
merkleRoot?: Buffer;
timestamp: number;
witnessCommit?: Buffer;
bits: number;
nonce: number;
transactions?: Array<Transaction>;
constructor() {
this.version = 1;
this.timestamp = 0;
this.bits = 0;
this.nonce = 0;
this.prevHash = undefined;
this.merkleRoot = undefined;
this.witnessCommit = undefined;
this.transactions = undefined;
}
static fromBuffer(buffer: Buffer): Block { static fromBuffer(buffer: Buffer): Block {
if (buffer.length < 80) throw new Error('Buffer too small (< 80 bytes)'); if (buffer.length < 80) throw new Error('Buffer too small (< 80 bytes)');
@ -111,12 +91,12 @@ export class Block {
const nTransactions = readVarInt(); const nTransactions = readVarInt();
block.transactions = []; block.transactions = [];
for (var i = 0; i < nTransactions; ++i) { for (let i = 0; i < nTransactions; ++i) {
const tx = readTransaction(); const tx = readTransaction();
block.transactions.push(tx); block.transactions.push(tx);
} }
let witnessCommit = block.getWitnessCommit(); const witnessCommit = block.getWitnessCommit();
// This Block contains a witness commit // This Block contains a witness commit
if (witnessCommit) block.witnessCommit = witnessCommit; if (witnessCommit) block.witnessCommit = witnessCommit;
@ -136,7 +116,7 @@ export class Block {
} }
static calculateMerkleRoot( static calculateMerkleRoot(
transactions: Array<Transaction>, transactions: Transaction[],
forWitness?: boolean, forWitness?: boolean,
): Buffer { ): Buffer {
typeforce([{ getHash: types.Function }], transactions); typeforce([{ getHash: types.Function }], transactions);
@ -157,6 +137,26 @@ export class Block {
: rootHash; : rootHash;
} }
version: number;
prevHash?: Buffer;
merkleRoot?: Buffer;
timestamp: number;
witnessCommit?: Buffer;
bits: number;
nonce: number;
transactions?: Transaction[];
constructor() {
this.version = 1;
this.timestamp = 0;
this.bits = 0;
this.nonce = 0;
this.prevHash = undefined;
this.merkleRoot = undefined;
this.witnessCommit = undefined;
this.transactions = undefined;
}
getWitnessCommit(): Buffer | null { getWitnessCommit(): Buffer | null {
if (!txesHaveWitnessCommit(this.transactions!)) return null; if (!txesHaveWitnessCommit(this.transactions!)) return null;
@ -164,12 +164,12 @@ export class Block {
// There is no rule for the index of the output, so use filter to find it. // There is no rule for the index of the output, so use filter to find it.
// The root is prepended with 0xaa21a9ed so check for 0x6a24aa21a9ed // The root is prepended with 0xaa21a9ed so check for 0x6a24aa21a9ed
// If multiple commits are found, the output with highest index is assumed. // If multiple commits are found, the output with highest index is assumed.
let witnessCommits = this.transactions![0].outs.filter(out => const witnessCommits = this.transactions![0].outs.filter(out =>
out.script.slice(0, 6).equals(Buffer.from('6a24aa21a9ed', 'hex')), out.script.slice(0, 6).equals(Buffer.from('6a24aa21a9ed', 'hex')),
).map(out => out.script.slice(6, 38)); ).map(out => out.script.slice(6, 38));
if (witnessCommits.length === 0) return null; if (witnessCommits.length === 0) return null;
// Use the commit with the highest output (should only be one though) // Use the commit with the highest output (should only be one though)
let result = witnessCommits[witnessCommits.length - 1]; const result = witnessCommits[witnessCommits.length - 1];
if (!(result instanceof Buffer && result.length === 32)) return null; if (!(result instanceof Buffer && result.length === 32)) return null;
return result; return result;
@ -261,7 +261,7 @@ export class Block {
checkTxRoots(): boolean { checkTxRoots(): boolean {
// If the Block has segwit transactions but no witness commit, // If the Block has segwit transactions but no witness commit,
// there's no way it can be valid, so fail the check. // there's no way it can be valid, so fail the check.
let hasWitnessCommit = this.hasWitnessCommit(); const hasWitnessCommit = this.hasWitnessCommit();
if (!hasWitnessCommit && this.hasWitness()) return false; if (!hasWitnessCommit && this.hasWitness()) return false;
return ( return (
this.__checkMerkleRoot() && this.__checkMerkleRoot() &&
@ -277,14 +277,21 @@ export class Block {
return this.checkTxRoots(); return this.checkTxRoots();
} }
__checkMerkleRoot(): boolean { checkProofOfWork(): boolean {
const hash: Buffer = reverseBuffer(this.getHash());
const target = Block.calculateTarget(this.bits);
return hash.compare(target) <= 0;
}
private __checkMerkleRoot(): boolean {
if (!this.transactions) throw errorMerkleNoTxes; if (!this.transactions) throw errorMerkleNoTxes;
const actualMerkleRoot = Block.calculateMerkleRoot(this.transactions); const actualMerkleRoot = Block.calculateMerkleRoot(this.transactions);
return this.merkleRoot!.compare(actualMerkleRoot) === 0; return this.merkleRoot!.compare(actualMerkleRoot) === 0;
} }
__checkWitnessCommit(): boolean { private __checkWitnessCommit(): boolean {
if (!this.transactions) throw errorMerkleNoTxes; if (!this.transactions) throw errorMerkleNoTxes;
if (!this.hasWitnessCommit()) throw errorWitnessNotSegwit; if (!this.hasWitnessCommit()) throw errorWitnessNotSegwit;
@ -294,11 +301,4 @@ export class Block {
); );
return this.witnessCommit!.compare(actualWitnessCommit) === 0; return this.witnessCommit!.compare(actualWitnessCommit) === 0;
} }
checkProofOfWork(): boolean {
const hash: Buffer = reverseBuffer(this.getHash());
const target = Block.calculateTarget(this.bits);
return hash.compare(target) <= 0;
}
} }

27
ts_src/classify.ts
View file

@ -4,20 +4,20 @@ import * as nullData from './templates/nulldata';
import * as pubKey from './templates/pubkey'; import * as pubKey from './templates/pubkey';
import * as pubKeyHash from './templates/pubkeyhash'; import * as pubKeyHash from './templates/pubkeyhash';
import * as scriptHash from './templates/scripthash'; import * as scriptHash from './templates/scripthash';
import * as witnessCommitment from './templates/witnesscommitment';
import * as witnessPubKeyHash from './templates/witnesspubkeyhash'; import * as witnessPubKeyHash from './templates/witnesspubkeyhash';
import * as witnessScriptHash from './templates/witnessscripthash'; import * as witnessScriptHash from './templates/witnessscripthash';
import * as witnessCommitment from './templates/witnesscommitment';
const types = { const types = {
P2MS: <string>'multisig', P2MS: 'multisig' as string,
NONSTANDARD: <string>'nonstandard', NONSTANDARD: 'nonstandard' as string,
NULLDATA: <string>'nulldata', NULLDATA: 'nulldata' as string,
P2PK: <string>'pubkey', P2PK: 'pubkey' as string,
P2PKH: <string>'pubkeyhash', P2PKH: 'pubkeyhash' as string,
P2SH: <string>'scripthash', P2SH: 'scripthash' as string,
P2WPKH: <string>'witnesspubkeyhash', P2WPKH: 'witnesspubkeyhash' as string,
P2WSH: <string>'witnessscripthash', P2WSH: 'witnessscripthash' as string,
WITNESS_COMMITMENT: <string>'witnesscommitment', WITNESS_COMMITMENT: 'witnesscommitment' as string,
}; };
function classifyOutput(script: Buffer): string { function classifyOutput(script: Buffer): string {
@ -51,16 +51,13 @@ function classifyInput(script: Buffer, allowIncomplete: boolean): string {
return types.NONSTANDARD; return types.NONSTANDARD;
} }
function classifyWitness( function classifyWitness(script: Buffer[], allowIncomplete: boolean): string {
script: Array<Buffer>,
allowIncomplete: boolean,
): string {
// XXX: optimization, below functions .decompile before use // XXX: optimization, below functions .decompile before use
const chunks = decompile(script); const chunks = decompile(script);
if (!chunks) throw new TypeError('Invalid script'); if (!chunks) throw new TypeError('Invalid script');
if (witnessPubKeyHash.input.check(chunks)) return types.P2WPKH; if (witnessPubKeyHash.input.check(chunks)) return types.P2WPKH;
if (witnessScriptHash.input.check(<Array<Buffer>>chunks, allowIncomplete)) if (witnessScriptHash.input.check(chunks as Buffer[], allowIncomplete))
return types.P2WSH; return types.P2WSH;
return types.NONSTANDARD; return types.NONSTANDARD;

36
ts_src/ecpair.ts
View file

@ -33,7 +33,7 @@ export interface ECPairInterface {
class ECPair implements ECPairInterface { class ECPair implements ECPairInterface {
compressed: boolean; compressed: boolean;
network: Network; network: Network;
private __d?: Buffer; private __D?: Buffer;
private __Q?: Buffer; private __Q?: Buffer;
constructor(d?: Buffer, Q?: Buffer, options?: ECPairOptions) { constructor(d?: Buffer, Q?: Buffer, options?: ECPairOptions) {
@ -42,29 +42,29 @@ class ECPair implements ECPairInterface {
options.compressed === undefined ? true : options.compressed; options.compressed === undefined ? true : options.compressed;
this.network = options.network || NETWORKS.bitcoin; this.network = options.network || NETWORKS.bitcoin;
this.__d = undefined; this.__D = undefined;
this.__Q = undefined; this.__Q = undefined;
if (d !== undefined) this.__d = d; if (d !== undefined) this.__D = d;
if (Q !== undefined) this.__Q = ecc.pointCompress(Q, this.compressed); if (Q !== undefined) this.__Q = ecc.pointCompress(Q, this.compressed);
} }
get privateKey(): Buffer | undefined { get privateKey(): Buffer | undefined {
return this.__d; return this.__D;
} }
get publicKey(): Buffer | undefined { get publicKey(): Buffer | undefined {
if (!this.__Q) this.__Q = ecc.pointFromScalar(this.__d, this.compressed); if (!this.__Q) this.__Q = ecc.pointFromScalar(this.__D, this.compressed);
return this.__Q; return this.__Q;
} }
toWIF(): string { toWIF(): string {
if (!this.__d) throw new Error('Missing private key'); if (!this.__D) throw new Error('Missing private key');
return wif.encode(this.network.wif, this.__d, this.compressed); return wif.encode(this.network.wif, this.__D, this.compressed);
} }
sign(hash: Buffer): Buffer { sign(hash: Buffer): Buffer {
if (!this.__d) throw new Error('Missing private key'); if (!this.__D) throw new Error('Missing private key');
return ecc.sign(hash, this.__d); return ecc.sign(hash, this.__D);
} }
verify(hash: Buffer, signature: Buffer): Buffer { verify(hash: Buffer, signature: Buffer): Buffer {
@ -78,26 +78,26 @@ function fromPrivateKey(buffer: Buffer, options?: ECPairOptions): ECPair {
throw new TypeError('Private key not in range [1, n)'); throw new TypeError('Private key not in range [1, n)');
typeforce(isOptions, options); typeforce(isOptions, options);
return new ECPair(buffer, undefined, <ECPairOptions>options); return new ECPair(buffer, undefined, options as ECPairOptions);
} }
function fromPublicKey(buffer: Buffer, options?: ECPairOptions): ECPair { function fromPublicKey(buffer: Buffer, options?: ECPairOptions): ECPair {
typeforce(ecc.isPoint, buffer); typeforce(ecc.isPoint, buffer);
typeforce(isOptions, options); typeforce(isOptions, options);
return new ECPair(undefined, buffer, <ECPairOptions>options); return new ECPair(undefined, buffer, options as ECPairOptions);
} }
function fromWIF(string: string, network?: Network | Array<Network>): ECPair { function fromWIF(wifString: string, network?: Network | Network[]): ECPair {
const decoded = wif.decode(string); const decoded = wif.decode(wifString);
const version = decoded.version; const version = decoded.version;
// list of networks? // list of networks?
if (types.Array(network)) { if (types.Array(network)) {
network = <Network>(<Array<Network>>network) network = (network as Network[])
.filter(function(x: Network) { .filter((x: Network) => {
return version === x.wif; return version === x.wif;
}) })
.pop(); .pop() as Network;
if (!network) throw new Error('Unknown network version'); if (!network) throw new Error('Unknown network version');
@ -105,13 +105,13 @@ function fromWIF(string: string, network?: Network | Array<Network>): ECPair {
} else { } else {
network = network || NETWORKS.bitcoin; network = network || NETWORKS.bitcoin;
if (version !== (<Network>network).wif) if (version !== (network as Network).wif)
throw new Error('Invalid network version'); throw new Error('Invalid network version');
} }
return fromPrivateKey(decoded.privateKey, { return fromPrivateKey(decoded.privateKey, {
compressed: decoded.compressed, compressed: decoded.compressed,
network: <Network>network, network: network as Network,
}); });
} }

12
ts_src/index.ts
View file

@ -1,7 +1,7 @@
import * as bip32 from 'bip32'; import * as bip32 from 'bip32';
import * as ECPair from './ecpair';
import * as address from './address'; import * as address from './address';
import * as crypto from './crypto'; import * as crypto from './crypto';
import * as ECPair from './ecpair';
import * as networks from './networks'; import * as networks from './networks';
import * as payments from './payments'; import * as payments from './payments';
import * as script from './script'; import * as script from './script';
@ -9,12 +9,12 @@ import * as script from './script';
export { ECPair, address, bip32, crypto, networks, payments, script }; export { ECPair, address, bip32, crypto, networks, payments, script };
export { Block } from './block'; export { Block } from './block';
export { OPS as opcodes } from './script';
export { Transaction } from './transaction'; export { Transaction } from './transaction';
export { TransactionBuilder } from './transaction_builder'; export { TransactionBuilder } from './transaction_builder';
export { OPS as opcodes } from './script';
export { Payment, PaymentOpts } from './payments';
export { Input as TxInput, Output as TxOutput } from './transaction';
export { Network } from './networks';
export { OpCode } from './script';
export { BIP32Interface } from 'bip32'; export { BIP32Interface } from 'bip32';
export { Network } from './networks';
export { Payment, PaymentOpts } from './payments';
export { OpCode } from './script';
export { Input as TxInput, Output as TxOutput } from './transaction';

10
ts_src/networks.ts
View file

@ -1,18 +1,18 @@
// https://en.bitcoin.it/wiki/List_of_address_prefixes // https://en.bitcoin.it/wiki/List_of_address_prefixes
// Dogecoin BIP32 is a proposed standard: https://bitcointalk.org/index.php?topic=409731 // Dogecoin BIP32 is a proposed standard: https://bitcointalk.org/index.php?topic=409731
export type Network = { export interface Network {
messagePrefix: string; messagePrefix: string;
bech32: string; bech32: string;
bip32: bip32; bip32: Bip32;
pubKeyHash: number; pubKeyHash: number;
scriptHash: number; scriptHash: number;
wif: number; wif: number;
}; }
type bip32 = { interface Bip32 {
public: number; public: number;
private: number; private: number;
}; }
export const bitcoin: Network = { export const bitcoin: Network = {
messagePrefix: '\x18Bitcoin Signed Message:\n', messagePrefix: '\x18Bitcoin Signed Message:\n',

23
ts_src/payments/embed.ts
View file

@ -1,14 +1,15 @@
import { Payment, PaymentOpts } from './index';
import * as bscript from '../script';
import * as lazy from './lazy';
import { bitcoin as BITCOIN_NETWORK } from '../networks'; import { bitcoin as BITCOIN_NETWORK } from '../networks';
import * as bscript from '../script';
import { Payment, PaymentOpts, Stack } from './index';
import * as lazy from './lazy';
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
function stacksEqual(a: Array<Buffer>, b: Array<Buffer>): boolean { function stacksEqual(a: Buffer[], b: Buffer[]): boolean {
if (a.length !== b.length) return false; if (a.length !== b.length) return false;
return a.every(function(x, i) { return a.every((x, i) => {
return x.equals(b[i]); return x.equals(b[i]);
}); });
} }
@ -28,15 +29,13 @@ export function p2data(a: Payment, opts?: PaymentOpts): Payment {
); );
const network = a.network || BITCOIN_NETWORK; const network = a.network || BITCOIN_NETWORK;
const o = <Payment>{ network }; const o = { network } as Payment;
lazy.prop(o, 'output', function() { lazy.prop(o, 'output', () => {
if (!a.data) return; if (!a.data) return;
return bscript.compile( return bscript.compile(([OPS.OP_RETURN] as Stack).concat(a.data));
(<Array<Buffer | number>>[OPS.OP_RETURN]).concat(a.data),
);
}); });
lazy.prop(o, 'data', function() { lazy.prop(o, 'data', () => {
if (!a.output) return; if (!a.output) return;
return bscript.decompile(a.output)!.slice(1); return bscript.decompile(a.output)!.slice(1);
}); });
@ -50,7 +49,7 @@ export function p2data(a: Payment, opts?: PaymentOpts): Payment {
if (!chunks!.slice(1).every(typef.Buffer)) if (!chunks!.slice(1).every(typef.Buffer))
throw new TypeError('Output is invalid'); throw new TypeError('Output is invalid');
if (a.data && !stacksEqual(a.data, <Array<Buffer>>o.data)) if (a.data && !stacksEqual(a.data, o.data as Buffer[]))
throw new TypeError('Data mismatch'); throw new TypeError('Data mismatch');
} }
} }

14
ts_src/payments/index.ts
View file

@ -10,25 +10,31 @@ import { p2wsh } from './p2wsh';
export interface Payment { export interface Payment {
network?: Network; network?: Network;
output?: Buffer; output?: Buffer;
data?: Array<Buffer>; data?: Buffer[];
m?: number; m?: number;
n?: number; n?: number;
pubkeys?: Array<Buffer>; pubkeys?: Buffer[];
input?: Buffer; input?: Buffer;
signatures?: Array<Buffer>; signatures?: Buffer[];
pubkey?: Buffer; pubkey?: Buffer;
signature?: Buffer; signature?: Buffer;
address?: string; address?: string;
hash?: Buffer; hash?: Buffer;
redeem?: Payment; redeem?: Payment;
witness?: Array<Buffer>; witness?: Buffer[];
} }
export type PaymentFunction = () => Payment;
export interface PaymentOpts { export interface PaymentOpts {
validate?: boolean; validate?: boolean;
allowIncomplete?: boolean; allowIncomplete?: boolean;
} }
export type StackElement = Buffer | number;
export type Stack = StackElement[];
export type StackFunction = () => Stack;
export { embed, p2ms, p2pk, p2pkh, p2sh, p2wpkh, p2wsh }; export { embed, p2ms, p2pk, p2pkh, p2sh, p2wpkh, p2wsh };
// TODO // TODO

24
ts_src/payments/lazy.ts
View file

@ -1,17 +1,17 @@
export function prop(object: Object, name: string, f: () => any): void { export function prop(object: {}, name: string, f: () => any): void {
Object.defineProperty(object, name, { Object.defineProperty(object, name, {
configurable: true, configurable: true,
enumerable: true, enumerable: true,
get: function() { get() {
let value = f.call(this); const _value = f.call(this);
this[name] = value; this[name] = _value;
return value; return _value;
}, },
set: function(value) { set(_value) {
Object.defineProperty(this, name, { Object.defineProperty(this, name, {
configurable: true, configurable: true,
enumerable: true, enumerable: true,
value: value, value: _value,
writable: true, writable: true,
}); });
}, },
@ -19,10 +19,10 @@ export function prop(object: Object, name: string, f: () => any): void {
} }
export function value<T>(f: () => T): () => T { export function value<T>(f: () => T): () => T {
let value: T; let _value: T;
return function(): T { return (): T => {
if (value !== undefined) return value; if (_value !== undefined) return _value;
value = f(); _value = f();
return value; return _value;
}; };
} }

46
ts_src/payments/p2ms.ts
View file

@ -1,17 +1,17 @@
import { Payment, PaymentOpts } from './index';
import * as bscript from '../script';
import * as lazy from './lazy';
import { bitcoin as BITCOIN_NETWORK } from '../networks'; import { bitcoin as BITCOIN_NETWORK } from '../networks';
import * as bscript from '../script';
import { Payment, PaymentOpts, Stack } from './index';
import * as lazy from './lazy';
const OPS = bscript.OPS; const OPS = bscript.OPS;
const typef = require('typeforce'); const typef = require('typeforce');
const ecc = require('tiny-secp256k1'); const ecc = require('tiny-secp256k1');
const OP_INT_BASE = OPS.OP_RESERVED; // OP_1 - 1 const OP_INT_BASE = OPS.OP_RESERVED; // OP_1 - 1
function stacksEqual(a: Array<Buffer>, b: Array<Buffer>): boolean { function stacksEqual(a: Buffer[], b: Buffer[]): boolean {
if (a.length !== b.length) return false; if (a.length !== b.length) return false;
return a.every(function(x, i) { return a.every((x, i) => {
return x.equals(b[i]); return x.equals(b[i]);
}); });
} }
@ -30,8 +30,8 @@ export function p2ms(a: Payment, opts?: PaymentOpts): Payment {
function isAcceptableSignature(x: Buffer | number) { function isAcceptableSignature(x: Buffer | number) {
return ( return (
bscript.isCanonicalScriptSignature(<Buffer>x) || bscript.isCanonicalScriptSignature(x as Buffer) ||
(opts!.allowIncomplete && <number>x === OPS.OP_0) !== undefined (opts!.allowIncomplete && (x as number) === OPS.OP_0) !== undefined
); );
} }
@ -52,23 +52,23 @@ export function p2ms(a: Payment, opts?: PaymentOpts): Payment {
const network = a.network || BITCOIN_NETWORK; const network = a.network || BITCOIN_NETWORK;
const o: Payment = { network }; const o: Payment = { network };
let chunks: Array<Buffer | number> = []; let chunks: Stack = [];
let decoded = false; let decoded = false;
function decode(output: Buffer | Array<Buffer | number>): void { function decode(output: Buffer | Stack): void {
if (decoded) return; if (decoded) return;
decoded = true; decoded = true;
chunks = <Array<Buffer | number>>bscript.decompile(output); chunks = bscript.decompile(output) as Stack;
o.m = <number>chunks[0] - OP_INT_BASE; o.m = (chunks[0] as number) - OP_INT_BASE;
o.n = <number>chunks[chunks.length - 2] - OP_INT_BASE; o.n = (chunks[chunks.length - 2] as number) - OP_INT_BASE;
o.pubkeys = <Array<Buffer>>chunks.slice(1, -2); o.pubkeys = chunks.slice(1, -2) as Buffer[];
} }
lazy.prop(o, 'output', function() { lazy.prop(o, 'output', () => {
if (!a.m) return; if (!a.m) return;
if (!o.n) return; if (!o.n) return;
if (!a.pubkeys) return; if (!a.pubkeys) return;
return bscript.compile( return bscript.compile(
(<Array<Buffer | number>>[]).concat( ([] as Stack).concat(
OP_INT_BASE + a.m, OP_INT_BASE + a.m,
a.pubkeys, a.pubkeys,
OP_INT_BASE + o.n, OP_INT_BASE + o.n,
@ -76,31 +76,29 @@ export function p2ms(a: Payment, opts?: PaymentOpts): Payment {
), ),
); );
}); });
lazy.prop(o, 'm', function() { lazy.prop(o, 'm', () => {
if (!o.output) return; if (!o.output) return;
decode(o.output); decode(o.output);
return o.m; return o.m;
}); });
lazy.prop(o, 'n', function() { lazy.prop(o, 'n', () => {
if (!o.pubkeys) return; if (!o.pubkeys) return;
return o.pubkeys.length; return o.pubkeys.length;
}); });
lazy.prop(o, 'pubkeys', function() { lazy.prop(o, 'pubkeys', () => {
if (!a.output) return; if (!a.output) return;
decode(a.output); decode(a.output);
return o.pubkeys; return o.pubkeys;
}); });
lazy.prop(o, 'signatures', function() { lazy.prop(o, 'signatures', () => {
if (!a.input) return; if (!a.input) return;
return bscript.decompile(a.input)!.slice(1); return bscript.decompile(a.input)!.slice(1);
}); });
lazy.prop(o, 'input', function() { lazy.prop(o, 'input', () => {
if (!a.signatures) return; if (!a.signatures) return;
return bscript.compile( return bscript.compile(([OPS.OP_0] as Stack).concat(a.signatures));
(<Array<Buffer | number>>[OPS.OP_0]).concat(a.signatures),
);
}); });
lazy.prop(o, 'witness', function() { lazy.prop(o, 'witness', () => {
if (!o.input) return; if (!o.input) return;
return []; return [];
}); });

22
ts_src/payments/p2pk.ts
View file

@ -1,7 +1,7 @@
import { Payment, PaymentOpts } from './index';
import * as bscript from '../script';
import * as lazy from './lazy';
import { bitcoin as BITCOIN_NETWORK } from '../networks'; import { bitcoin as BITCOIN_NETWORK } from '../networks';
import * as bscript from '../script';
import { Payment, PaymentOpts, StackFunction } from './index';
import * as lazy from './lazy';
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
const ecc = require('tiny-secp256k1'); const ecc = require('tiny-secp256k1');
@ -25,30 +25,30 @@ export function p2pk(a: Payment, opts?: PaymentOpts): Payment {
a, a,
); );
const _chunks = <() => Array<Buffer | number>>lazy.value(function() { const _chunks = lazy.value(() => {
return bscript.decompile(a.input!); return bscript.decompile(a.input!);
}); }) as StackFunction;
const network = a.network || BITCOIN_NETWORK; const network = a.network || BITCOIN_NETWORK;
const o: Payment = { network }; const o: Payment = { network };
lazy.prop(o, 'output', function() { lazy.prop(o, 'output', () => {
if (!a.pubkey) return; if (!a.pubkey) return;
return bscript.compile([a.pubkey, OPS.OP_CHECKSIG]); return bscript.compile([a.pubkey, OPS.OP_CHECKSIG]);
}); });
lazy.prop(o, 'pubkey', function() { lazy.prop(o, 'pubkey', () => {
if (!a.output) return; if (!a.output) return;
return a.output.slice(1, -1); return a.output.slice(1, -1);
}); });
lazy.prop(o, 'signature', function() { lazy.prop(o, 'signature', () => {
if (!a.input) return; if (!a.input) return;
return <Buffer>_chunks()[0]; return _chunks()[0] as Buffer;
}); });
lazy.prop(o, 'input', function() { lazy.prop(o, 'input', () => {
if (!a.signature) return; if (!a.signature) return;
return bscript.compile([a.signature]); return bscript.compile([a.signature]);
}); });
lazy.prop(o, 'witness', function() { lazy.prop(o, 'witness', () => {
if (!o.input) return; if (!o.input) return;
return []; return [];
}); });

38
ts_src/payments/p2pkh.ts
View file

@ -1,8 +1,8 @@
import { Payment, PaymentOpts } from './index';
import * as bscript from '../script';
import * as bcrypto from '../crypto'; import * as bcrypto from '../crypto';
import * as lazy from './lazy';
import { bitcoin as BITCOIN_NETWORK } from '../networks'; import { bitcoin as BITCOIN_NETWORK } from '../networks';
import * as bscript from '../script';
import { Payment, PaymentOpts, StackFunction } from './index';
import * as lazy from './lazy';
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
const ecc = require('tiny-secp256k1'); const ecc = require('tiny-secp256k1');
@ -30,20 +30,20 @@ export function p2pkh(a: Payment, opts?: PaymentOpts): Payment {
a, a,
); );
const _address = lazy.value(function() { const _address = lazy.value(() => {
const payload = bs58check.decode(a.address); const payload = bs58check.decode(a.address);
const version = payload.readUInt8(0); const version = payload.readUInt8(0);
const hash = payload.slice(1); const hash = payload.slice(1);
return { version, hash }; return { version, hash };
}); });
const _chunks = <() => Array<Buffer | number>>lazy.value(function() { const _chunks = lazy.value(() => {
return bscript.decompile(a.input!); return bscript.decompile(a.input!);
}); }) as StackFunction;
const network = a.network || BITCOIN_NETWORK; const network = a.network || BITCOIN_NETWORK;
const o: Payment = { network }; const o: Payment = { network };
lazy.prop(o, 'address', function() { lazy.prop(o, 'address', () => {
if (!o.hash) return; if (!o.hash) return;
const payload = Buffer.allocUnsafe(21); const payload = Buffer.allocUnsafe(21);
@ -51,12 +51,12 @@ export function p2pkh(a: Payment, opts?: PaymentOpts): Payment {
o.hash.copy(payload, 1); o.hash.copy(payload, 1);
return bs58check.encode(payload); return bs58check.encode(payload);
}); });
lazy.prop(o, 'hash', function() { lazy.prop(o, 'hash', () => {
if (a.output) return a.output.slice(3, 23); if (a.output) return a.output.slice(3, 23);
if (a.address) return _address().hash; if (a.address) return _address().hash;
if (a.pubkey || o.pubkey) return bcrypto.hash160(a.pubkey! || o.pubkey!); if (a.pubkey || o.pubkey) return bcrypto.hash160(a.pubkey! || o.pubkey!);
}); });
lazy.prop(o, 'output', function() { lazy.prop(o, 'output', () => {
if (!o.hash) return; if (!o.hash) return;
return bscript.compile([ return bscript.compile([
OPS.OP_DUP, OPS.OP_DUP,
@ -66,20 +66,20 @@ export function p2pkh(a: Payment, opts?: PaymentOpts): Payment {
OPS.OP_CHECKSIG, OPS.OP_CHECKSIG,
]); ]);
}); });
lazy.prop(o, 'pubkey', function() { lazy.prop(o, 'pubkey', () => {
if (!a.input) return; if (!a.input) return;
return <Buffer>_chunks()[1]; return _chunks()[1] as Buffer;
}); });
lazy.prop(o, 'signature', function() { lazy.prop(o, 'signature', () => {
if (!a.input) return; if (!a.input) return;
return <Buffer>_chunks()[0]; return _chunks()[0] as Buffer;
}); });
lazy.prop(o, 'input', function() { lazy.prop(o, 'input', () => {
if (!a.pubkey) return; if (!a.pubkey) return;
if (!a.signature) return; if (!a.signature) return;
return bscript.compile([a.signature, a.pubkey]); return bscript.compile([a.signature, a.pubkey]);
}); });
lazy.prop(o, 'witness', function() { lazy.prop(o, 'witness', () => {
if (!o.input) return; if (!o.input) return;
return []; return [];
}); });
@ -127,17 +127,17 @@ export function p2pkh(a: Payment, opts?: PaymentOpts): Payment {
if (a.input) { if (a.input) {
const chunks = _chunks(); const chunks = _chunks();
if (chunks.length !== 2) throw new TypeError('Input is invalid'); if (chunks.length !== 2) throw new TypeError('Input is invalid');
if (!bscript.isCanonicalScriptSignature(<Buffer>chunks[0])) if (!bscript.isCanonicalScriptSignature(chunks[0] as Buffer))
throw new TypeError('Input has invalid signature'); throw new TypeError('Input has invalid signature');
if (!ecc.isPoint(chunks[1])) if (!ecc.isPoint(chunks[1]))
throw new TypeError('Input has invalid pubkey'); throw new TypeError('Input has invalid pubkey');
if (a.signature && !a.signature.equals(<Buffer>chunks[0])) if (a.signature && !a.signature.equals(chunks[0] as Buffer))
throw new TypeError('Signature mismatch'); throw new TypeError('Signature mismatch');
if (a.pubkey && !a.pubkey.equals(<Buffer>chunks[1])) if (a.pubkey && !a.pubkey.equals(chunks[1] as Buffer))
throw new TypeError('Pubkey mismatch'); throw new TypeError('Pubkey mismatch');
const pkh = bcrypto.hash160(<Buffer>chunks[1]); const pkh = bcrypto.hash160(chunks[1] as Buffer);
if (hash.length > 0 && !hash.equals(pkh)) if (hash.length > 0 && !hash.equals(pkh))
throw new TypeError('Hash mismatch'); throw new TypeError('Hash mismatch');
} }

62
ts_src/payments/p2sh.ts
View file

@ -1,17 +1,23 @@
import { Payment, PaymentOpts } from './index'; import * as bcrypto from '../crypto';
import { bitcoin as BITCOIN_NETWORK } from '../networks'; import { bitcoin as BITCOIN_NETWORK } from '../networks';
import * as bscript from '../script'; import * as bscript from '../script';
import * as bcrypto from '../crypto'; import {
Payment,
PaymentFunction,
PaymentOpts,
Stack,
StackFunction,
} from './index';
import * as lazy from './lazy'; import * as lazy from './lazy';
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
const bs58check = require('bs58check'); const bs58check = require('bs58check');
function stacksEqual(a: Array<Buffer>, b: Array<Buffer>): boolean { function stacksEqual(a: Buffer[], b: Buffer[]): boolean {
if (a.length !== b.length) return false; if (a.length !== b.length) return false;
return a.every(function(x, i) { return a.every((x, i) => {
return x.equals(b[i]); return x.equals(b[i]);
}); });
} }
@ -51,27 +57,29 @@ export function p2sh(a: Payment, opts?: PaymentOpts): Payment {
const o: Payment = { network }; const o: Payment = { network };
const _address = lazy.value(function() { const _address = lazy.value(() => {
const payload = bs58check.decode(a.address); const payload = bs58check.decode(a.address);
const version = payload.readUInt8(0); const version = payload.readUInt8(0);
const hash = payload.slice(1); const hash = payload.slice(1);
return { version, hash }; return { version, hash };
}); });
const _chunks = <() => Array<Buffer | number>>lazy.value(function() { const _chunks = lazy.value(() => {
return bscript.decompile(a.input!); return bscript.decompile(a.input!);
}); }) as StackFunction;
const _redeem = lazy.value(function(): Payment { const _redeem = lazy.value(
const chunks = _chunks(); (): Payment => {
return { const chunks = _chunks();
network, return {
output: <Buffer>chunks[chunks.length - 1], network,
input: bscript.compile(chunks.slice(0, -1)), output: chunks[chunks.length - 1] as Buffer,
witness: a.witness || [], input: bscript.compile(chunks.slice(0, -1)),
}; witness: a.witness || [],
}); };
},
) as PaymentFunction;
// output dependents // output dependents
lazy.prop(o, 'address', function() { lazy.prop(o, 'address', () => {
if (!o.hash) return; if (!o.hash) return;
const payload = Buffer.allocUnsafe(21); const payload = Buffer.allocUnsafe(21);
@ -79,32 +87,32 @@ export function p2sh(a: Payment, opts?: PaymentOpts): Payment {
o.hash.copy(payload, 1); o.hash.copy(payload, 1);
return bs58check.encode(payload); return bs58check.encode(payload);
}); });
lazy.prop(o, 'hash', function() { lazy.prop(o, 'hash', () => {
// in order of least effort // in order of least effort
if (a.output) return a.output.slice(2, 22); if (a.output) return a.output.slice(2, 22);
if (a.address) return _address().hash; if (a.address) return _address().hash;
if (o.redeem && o.redeem.output) return bcrypto.hash160(o.redeem.output); if (o.redeem && o.redeem.output) return bcrypto.hash160(o.redeem.output);
}); });
lazy.prop(o, 'output', function() { lazy.prop(o, 'output', () => {
if (!o.hash) return; if (!o.hash) return;
return bscript.compile([OPS.OP_HASH160, o.hash, OPS.OP_EQUAL]); return bscript.compile([OPS.OP_HASH160, o.hash, OPS.OP_EQUAL]);
}); });
// input dependents // input dependents
lazy.prop(o, 'redeem', function() { lazy.prop(o, 'redeem', () => {
if (!a.input) return; if (!a.input) return;
return _redeem(); return _redeem();
}); });
lazy.prop(o, 'input', function() { lazy.prop(o, 'input', () => {
if (!a.redeem || !a.redeem.input || !a.redeem.output) return; if (!a.redeem || !a.redeem.input || !a.redeem.output) return;
return bscript.compile( return bscript.compile(
(<Array<Buffer | number>>[]).concat( ([] as Stack).concat(
<Array<Buffer | number>>bscript.decompile(a.redeem.input), bscript.decompile(a.redeem.input) as Stack,
a.redeem.output, a.redeem.output,
), ),
); );
}); });
lazy.prop(o, 'witness', function() { lazy.prop(o, 'witness', () => {
if (o.redeem && o.redeem.witness) return o.redeem.witness; if (o.redeem && o.redeem.witness) return o.redeem.witness;
if (o.input) return []; if (o.input) return [];
}); });
@ -140,7 +148,7 @@ export function p2sh(a: Payment, opts?: PaymentOpts): Payment {
} }
// inlined to prevent 'no-inner-declarations' failing // inlined to prevent 'no-inner-declarations' failing
const checkRedeem = function(redeem: Payment): void { const checkRedeem = (redeem: Payment): void => {
// is the redeem output empty/invalid? // is the redeem output empty/invalid?
if (redeem.output) { if (redeem.output) {
const decompile = bscript.decompile(redeem.output); const decompile = bscript.decompile(redeem.output);
@ -161,9 +169,7 @@ export function p2sh(a: Payment, opts?: PaymentOpts): Payment {
if (hasInput && hasWitness) if (hasInput && hasWitness)
throw new TypeError('Input and witness provided'); throw new TypeError('Input and witness provided');
if (hasInput) { if (hasInput) {
const richunks = <Array<Buffer | number>>( const richunks = bscript.decompile(redeem.input) as Stack;
bscript.decompile(redeem.input)
);
if (!bscript.isPushOnly(richunks)) if (!bscript.isPushOnly(richunks))
throw new TypeError('Non push-only scriptSig'); throw new TypeError('Non push-only scriptSig');
} }

22
ts_src/payments/p2wpkh.ts
View file

@ -1,8 +1,8 @@
import { Payment, PaymentOpts } from './index';
import * as bscript from '../script';
import * as bcrypto from '../crypto'; import * as bcrypto from '../crypto';
import * as lazy from './lazy';
import { bitcoin as BITCOIN_NETWORK } from '../networks'; import { bitcoin as BITCOIN_NETWORK } from '../networks';
import * as bscript from '../script';
import { Payment, PaymentOpts } from './index';
import * as lazy from './lazy';
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
const ecc = require('tiny-secp256k1'); const ecc = require('tiny-secp256k1');
@ -33,7 +33,7 @@ export function p2wpkh(a: Payment, opts?: PaymentOpts): Payment {
a, a,
); );
const _address = lazy.value(function() { const _address = lazy.value(() => {
const result = bech32.decode(a.address); const result = bech32.decode(a.address);
const version = result.words.shift(); const version = result.words.shift();
const data = bech32.fromWords(result.words); const data = bech32.fromWords(result.words);
@ -47,36 +47,36 @@ export function p2wpkh(a: Payment, opts?: PaymentOpts): Payment {
const network = a.network || BITCOIN_NETWORK; const network = a.network || BITCOIN_NETWORK;
const o: Payment = { network }; const o: Payment = { network };
lazy.prop(o, 'address', function() { lazy.prop(o, 'address', () => {
if (!o.hash) return; if (!o.hash) return;
const words = bech32.toWords(o.hash); const words = bech32.toWords(o.hash);
words.unshift(0x00); words.unshift(0x00);
return bech32.encode(network.bech32, words); return bech32.encode(network.bech32, words);
}); });
lazy.prop(o, 'hash', function() { lazy.prop(o, 'hash', () => {
if (a.output) return a.output.slice(2, 22); if (a.output) return a.output.slice(2, 22);
if (a.address) return _address().data; if (a.address) return _address().data;
if (a.pubkey || o.pubkey) return bcrypto.hash160(a.pubkey! || o.pubkey!); if (a.pubkey || o.pubkey) return bcrypto.hash160(a.pubkey! || o.pubkey!);
}); });
lazy.prop(o, 'output', function() { lazy.prop(o, 'output', () => {
if (!o.hash) return; if (!o.hash) return;
return bscript.compile([OPS.OP_0, o.hash]); return bscript.compile([OPS.OP_0, o.hash]);
}); });
lazy.prop(o, 'pubkey', function() { lazy.prop(o, 'pubkey', () => {
if (a.pubkey) return a.pubkey; if (a.pubkey) return a.pubkey;
if (!a.witness) return; if (!a.witness) return;
return a.witness[1]; return a.witness[1];
}); });
lazy.prop(o, 'signature', function() { lazy.prop(o, 'signature', () => {
if (!a.witness) return; if (!a.witness) return;
return a.witness[0]; return a.witness[0];
}); });
lazy.prop(o, 'input', function() { lazy.prop(o, 'input', () => {
if (!o.witness) return; if (!o.witness) return;
return EMPTY_BUFFER; return EMPTY_BUFFER;
}); });
lazy.prop(o, 'witness', function() { lazy.prop(o, 'witness', () => {
if (!a.pubkey) return; if (!a.pubkey) return;
if (!a.signature) return; if (!a.signature) return;
return [a.signature, a.pubkey]; return [a.signature, a.pubkey];

30
ts_src/payments/p2wsh.ts
View file

@ -1,7 +1,7 @@
import { Payment, PaymentOpts } from './index'; import * as bcrypto from '../crypto';
import { bitcoin as BITCOIN_NETWORK } from '../networks'; import { bitcoin as BITCOIN_NETWORK } from '../networks';
import * as bscript from '../script'; import * as bscript from '../script';
import * as bcrypto from '../crypto'; import { Payment, PaymentOpts, StackFunction } from './index';
import * as lazy from './lazy'; import * as lazy from './lazy';
const typef = require('typeforce'); const typef = require('typeforce');
const OPS = bscript.OPS; const OPS = bscript.OPS;
@ -10,10 +10,10 @@ const bech32 = require('bech32');
const EMPTY_BUFFER = Buffer.alloc(0); const EMPTY_BUFFER = Buffer.alloc(0);
function stacksEqual(a: Array<Buffer>, b: Array<Buffer>): boolean { function stacksEqual(a: Buffer[], b: Buffer[]): boolean {
if (a.length !== b.length) return false; if (a.length !== b.length) return false;
return a.every(function(x, i) { return a.every((x, i) => {
return x.equals(b[i]); return x.equals(b[i]);
}); });
} }
@ -46,7 +46,7 @@ export function p2wsh(a: Payment, opts?: PaymentOpts): Payment {
a, a,
); );
const _address = lazy.value(function() { const _address = lazy.value(() => {
const result = bech32.decode(a.address); const result = bech32.decode(a.address);
const version = result.words.shift(); const version = result.words.shift();
const data = bech32.fromWords(result.words); const data = bech32.fromWords(result.words);
@ -56,9 +56,9 @@ export function p2wsh(a: Payment, opts?: PaymentOpts): Payment {
data: Buffer.from(data), data: Buffer.from(data),
}; };
}); });
const _rchunks = <() => Array<Buffer | number>>lazy.value(function() { const _rchunks = lazy.value(() => {
return bscript.decompile(a.redeem!.input!); return bscript.decompile(a.redeem!.input!);
}); }) as StackFunction;
let network = a.network; let network = a.network;
if (!network) { if (!network) {
@ -67,22 +67,22 @@ export function p2wsh(a: Payment, opts?: PaymentOpts): Payment {
const o: Payment = { network }; const o: Payment = { network };
lazy.prop(o, 'address', function() { lazy.prop(o, 'address', () => {
if (!o.hash) return; if (!o.hash) return;
const words = bech32.toWords(o.hash); const words = bech32.toWords(o.hash);
words.unshift(0x00); words.unshift(0x00);
return bech32.encode(network!.bech32, words); return bech32.encode(network!.bech32, words);
}); });
lazy.prop(o, 'hash', function() { lazy.prop(o, 'hash', () => {
if (a.output) return a.output.slice(2); if (a.output) return a.output.slice(2);
if (a.address) return _address().data; if (a.address) return _address().data;
if (o.redeem && o.redeem.output) return bcrypto.sha256(o.redeem.output); if (o.redeem && o.redeem.output) return bcrypto.sha256(o.redeem.output);
}); });
lazy.prop(o, 'output', function() { lazy.prop(o, 'output', () => {
if (!o.hash) return; if (!o.hash) return;
return bscript.compile([OPS.OP_0, o.hash]); return bscript.compile([OPS.OP_0, o.hash]);
}); });
lazy.prop(o, 'redeem', function() { lazy.prop(o, 'redeem', () => {
if (!a.witness) return; if (!a.witness) return;
return { return {
output: a.witness[a.witness.length - 1], output: a.witness[a.witness.length - 1],
@ -90,11 +90,11 @@ export function p2wsh(a: Payment, opts?: PaymentOpts): Payment {
witness: a.witness.slice(0, -1), witness: a.witness.slice(0, -1),
}; };
}); });
lazy.prop(o, 'input', function() { lazy.prop(o, 'input', () => {
if (!o.witness) return; if (!o.witness) return;
return EMPTY_BUFFER; return EMPTY_BUFFER;
}); });
lazy.prop(o, 'witness', function() { lazy.prop(o, 'witness', () => {
// transform redeem input to witness stack? // transform redeem input to witness stack?
if ( if (
a.redeem && a.redeem &&
@ -108,13 +108,13 @@ export function p2wsh(a: Payment, opts?: PaymentOpts): Payment {
// assign, and blank the existing input // assign, and blank the existing input
o.redeem = Object.assign({ witness: stack }, a.redeem); o.redeem = Object.assign({ witness: stack }, a.redeem);
o.redeem.input = EMPTY_BUFFER; o.redeem.input = EMPTY_BUFFER;
return (<Array<Buffer>>[]).concat(stack, a.redeem.output); return ([] as Buffer[]).concat(stack, a.redeem.output);
} }
if (!a.redeem) return; if (!a.redeem) return;
if (!a.redeem.output) return; if (!a.redeem.output) return;
if (!a.redeem.witness) return; if (!a.redeem.witness) return;
return (<Array<Buffer>>[]).concat(a.redeem.witness, a.redeem.output); return ([] as Buffer[]).concat(a.redeem.witness, a.redeem.output);
}); });
// extended validation // extended validation

40
ts_src/script.ts
View file

@ -1,15 +1,16 @@
import * as types from './types'; import { Stack } from './payments';
import * as scriptNumber from './script_number'; import * as scriptNumber from './script_number';
import * as scriptSignature from './script_signature'; import * as scriptSignature from './script_signature';
import * as types from './types';
const bip66 = require('bip66'); const bip66 = require('bip66');
const ecc = require('tiny-secp256k1'); const ecc = require('tiny-secp256k1');
const pushdata = require('pushdata-bitcoin'); const pushdata = require('pushdata-bitcoin');
const typeforce = require('typeforce'); const typeforce = require('typeforce');
export type OpCode = number; export type OpCode = number;
export const OPS = <{ [index: string]: OpCode }>require('bitcoin-ops'); export const OPS = require('bitcoin-ops') as { [index: string]: OpCode };
const REVERSE_OPS = <{ [index: number]: string }>require('bitcoin-ops/map'); const REVERSE_OPS = require('bitcoin-ops/map') as { [index: number]: string };
const OP_INT_BASE = OPS.OP_RESERVED; // OP_1 - 1 const OP_INT_BASE = OPS.OP_RESERVED; // OP_1 - 1
function isOPInt(value: number): boolean { function isOPInt(value: number): boolean {
@ -22,10 +23,10 @@ function isOPInt(value: number): boolean {
} }
function isPushOnlyChunk(value: number | Buffer): boolean { function isPushOnlyChunk(value: number | Buffer): boolean {
return types.Buffer(value) || isOPInt(<number>value); return types.Buffer(value) || isOPInt(value as number);
} }
export function isPushOnly(value: Array<number | Buffer>) { export function isPushOnly(value: Stack) {
return types.Array(value) && value.every(isPushOnlyChunk); return types.Array(value) && value.every(isPushOnlyChunk);
} }
@ -36,13 +37,11 @@ function asMinimalOP(buffer: Buffer): number | void {
if (buffer[0] === 0x81) return OPS.OP_1NEGATE; if (buffer[0] === 0x81) return OPS.OP_1NEGATE;
} }
function chunksIsBuffer(buf: Buffer | Array<number | Buffer>): buf is Buffer { function chunksIsBuffer(buf: Buffer | Stack): buf is Buffer {
return Buffer.isBuffer(buf); return Buffer.isBuffer(buf);
} }
function chunksIsArray( function chunksIsArray(buf: Buffer | Stack): buf is Stack {
buf: Buffer | Array<number | Buffer>,
): buf is Array<number | Buffer> {
return types.Array(buf); return types.Array(buf);
} }
@ -50,13 +49,13 @@ function singleChunkIsBuffer(buf: number | Buffer): buf is Buffer {
return Buffer.isBuffer(buf); return Buffer.isBuffer(buf);
} }
export function compile(chunks: Buffer | Array<number | Buffer>): Buffer { export function compile(chunks: Buffer | Stack): Buffer {
// TODO: remove me // TODO: remove me
if (chunksIsBuffer(chunks)) return chunks; if (chunksIsBuffer(chunks)) return chunks;
typeforce(types.Array, chunks); typeforce(types.Array, chunks);
const bufferSize = chunks.reduce(function(accum: number, chunk) { const bufferSize = chunks.reduce((accum: number, chunk) => {
// data chunk // data chunk
if (singleChunkIsBuffer(chunk)) { if (singleChunkIsBuffer(chunk)) {
// adhere to BIP62.3, minimal push policy // adhere to BIP62.3, minimal push policy
@ -74,7 +73,7 @@ export function compile(chunks: Buffer | Array<number | Buffer>): Buffer {
const buffer = Buffer.allocUnsafe(bufferSize); const buffer = Buffer.allocUnsafe(bufferSize);
let offset = 0; let offset = 0;
chunks.forEach(function(chunk) { chunks.forEach(chunk => {
// data chunk // data chunk
if (singleChunkIsBuffer(chunk)) { if (singleChunkIsBuffer(chunk)) {
// adhere to BIP62.3, minimal push policy // adhere to BIP62.3, minimal push policy
@ -149,16 +148,16 @@ export function decompile(
export function toASM(chunks: Buffer | Array<number | Buffer>): string { export function toASM(chunks: Buffer | Array<number | Buffer>): string {
if (chunksIsBuffer(chunks)) { if (chunksIsBuffer(chunks)) {
chunks = <Array<number | Buffer>>decompile(chunks); chunks = decompile(chunks) as Stack;
} }
return chunks return chunks
.map(function(chunk) { .map(chunk => {
// data? // data?
if (singleChunkIsBuffer(chunk)) { if (singleChunkIsBuffer(chunk)) {
const op = asMinimalOP(chunk); const op = asMinimalOP(chunk);
if (op === undefined) return chunk.toString('hex'); if (op === undefined) return chunk.toString('hex');
chunk = <number>op; chunk = op as number;
} }
// opcode! // opcode!
@ -171,7 +170,7 @@ export function fromASM(asm: string): Buffer {
typeforce(types.String, asm); typeforce(types.String, asm);
return compile( return compile(
asm.split(' ').map(function(chunkStr) { asm.split(' ').map(chunkStr => {
// opcode? // opcode?
if (OPS[chunkStr] !== undefined) return OPS[chunkStr]; if (OPS[chunkStr] !== undefined) return OPS[chunkStr];
typeforce(types.Hex, chunkStr); typeforce(types.Hex, chunkStr);
@ -182,13 +181,11 @@ export function fromASM(asm: string): Buffer {
); );
} }
export function toStack( export function toStack(chunks: Buffer | Array<number | Buffer>): Buffer[] {
chunks: Buffer | Array<number | Buffer>, chunks = decompile(chunks) as Stack;
): Array<Buffer> {
chunks = <Array<number | Buffer>>decompile(chunks);
typeforce(isPushOnly, chunks); typeforce(isPushOnly, chunks);
return chunks.map(function(op) { return chunks.map(op => {
if (singleChunkIsBuffer(op)) return op; if (singleChunkIsBuffer(op)) return op;
if (op === OPS.OP_0) return Buffer.allocUnsafe(0); if (op === OPS.OP_0) return Buffer.allocUnsafe(0);
@ -214,5 +211,6 @@ export function isCanonicalScriptSignature(buffer: Buffer): boolean {
return bip66.check(buffer.slice(0, -1)); return bip66.check(buffer.slice(0, -1));
} }
// tslint:disable-next-line variable-name
export const number = scriptNumber; export const number = scriptNumber;
export const signature = scriptSignature; export const signature = scriptSignature;

10
ts_src/script_number.ts
View file

@ -27,7 +27,7 @@ export function decode(
// 32-bit / 24-bit / 16-bit / 8-bit // 32-bit / 24-bit / 16-bit / 8-bit
let result = 0; let result = 0;
for (var i = 0; i < length; ++i) { for (let i = 0; i < length; ++i) {
result |= buffer[i] << (8 * i); result |= buffer[i] << (8 * i);
} }
@ -50,13 +50,13 @@ function scriptNumSize(i: number): number {
: 0; : 0;
} }
export function encode(number: number): Buffer { export function encode(_number: number): Buffer {
let value = Math.abs(number); let value = Math.abs(_number);
const size = scriptNumSize(value); const size = scriptNumSize(value);
const buffer = Buffer.allocUnsafe(size); const buffer = Buffer.allocUnsafe(size);
const negative = number < 0; const negative = _number < 0;
for (var i = 0; i < size; ++i) { for (let i = 0; i < size; ++i) {
buffer.writeUInt8(value & 0xff, i); buffer.writeUInt8(value & 0xff, i);
value >>= 8; value >>= 8;
} }

12
ts_src/script_signature.ts
View file

@ -33,14 +33,12 @@ export function decode(buffer: Buffer): ScriptSignature {
if (hashTypeMod <= 0 || hashTypeMod >= 4) if (hashTypeMod <= 0 || hashTypeMod >= 4)
throw new Error('Invalid hashType ' + hashType); throw new Error('Invalid hashType ' + hashType);
const decode = bip66.decode(buffer.slice(0, -1)); const decoded = bip66.decode(buffer.slice(0, -1));
const r = fromDER(decode.r); const r = fromDER(decoded.r);
const s = fromDER(decode.s); const s = fromDER(decoded.s);
const signature = Buffer.concat([r, s], 64);
return { return { signature, hashType };
signature: Buffer.concat([r, s], 64),
hashType: hashType,
};
} }
export function encode(signature: Buffer, hashType: number): Buffer { export function encode(signature: Buffer, hashType: number): Buffer {

11
ts_src/templates/multisig/input.ts
View file

@ -1,19 +1,20 @@
// OP_0 [signatures ...] // OP_0 [signatures ...]
import { Stack } from '../../payments';
import * as bscript from '../../script'; import * as bscript from '../../script';
import { OPS } from '../../script'; import { OPS } from '../../script';
function partialSignature(value: number | Buffer): boolean { function partialSignature(value: number | Buffer): boolean {
return ( return (
value === OPS.OP_0 || bscript.isCanonicalScriptSignature(<Buffer>value) value === OPS.OP_0 || bscript.isCanonicalScriptSignature(value as Buffer)
); );
} }
export function check( export function check(
script: Buffer | Array<number | Buffer>, script: Buffer | Stack,
allowIncomplete?: boolean, allowIncomplete?: boolean,
): boolean { ): boolean {
const chunks = <Array<number | Buffer>>bscript.decompile(script); const chunks = bscript.decompile(script) as Stack;
if (chunks.length < 2) return false; if (chunks.length < 2) return false;
if (chunks[0] !== OPS.OP_0) return false; if (chunks[0] !== OPS.OP_0) return false;
@ -21,10 +22,10 @@ export function check(
return chunks.slice(1).every(partialSignature); return chunks.slice(1).every(partialSignature);
} }
return (<Array<Buffer>>chunks.slice(1)).every( return (chunks.slice(1) as Buffer[]).every(
bscript.isCanonicalScriptSignature, bscript.isCanonicalScriptSignature,
); );
} }
check.toJSON = function() { check.toJSON = () => {
return 'multisig input'; return 'multisig input';
}; };

15
ts_src/templates/multisig/output.ts
View file

@ -1,22 +1,23 @@
// m [pubKeys ...] n OP_CHECKMULTISIG // m [pubKeys ...] n OP_CHECKMULTISIG
import { Stack } from '../../payments';
import * as bscript from '../../script'; import * as bscript from '../../script';
import * as types from '../../types';
import { OPS } from '../../script'; import { OPS } from '../../script';
import * as types from '../../types';
const OP_INT_BASE = OPS.OP_RESERVED; // OP_1 - 1 const OP_INT_BASE = OPS.OP_RESERVED; // OP_1 - 1
export function check( export function check(
script: Buffer | Array<number | Buffer>, script: Buffer | Stack,
allowIncomplete?: boolean, allowIncomplete?: boolean,
): boolean { ): boolean {
const chunks = <Array<number | Buffer>>bscript.decompile(script); const chunks = bscript.decompile(script) as Stack;
if (chunks.length < 4) return false; if (chunks.length < 4) return false;
if (chunks[chunks.length - 1] !== OPS.OP_CHECKMULTISIG) return false; if (chunks[chunks.length - 1] !== OPS.OP_CHECKMULTISIG) return false;
if (!types.Number(chunks[0])) return false; if (!types.Number(chunks[0])) return false;
if (!types.Number(chunks[chunks.length - 2])) return false; if (!types.Number(chunks[chunks.length - 2])) return false;
const m = <number>chunks[0] - OP_INT_BASE; const m = (chunks[0] as number) - OP_INT_BASE;
const n = <number>chunks[chunks.length - 2] - OP_INT_BASE; const n = (chunks[chunks.length - 2] as number) - OP_INT_BASE;
if (m <= 0) return false; if (m <= 0) return false;
if (n > 16) return false; if (n > 16) return false;
@ -24,9 +25,9 @@ export function check(
if (n !== chunks.length - 3) return false; if (n !== chunks.length - 3) return false;
if (allowIncomplete) return true; if (allowIncomplete) return true;
const keys = <Array<Buffer>>chunks.slice(1, -2); const keys = chunks.slice(1, -2) as Buffer[];
return keys.every(bscript.isCanonicalPubKey); return keys.every(bscript.isCanonicalPubKey);
} }
check.toJSON = function() { check.toJSON = () => {
return 'multi-sig output'; return 'multi-sig output';
}; };

2
ts_src/templates/nulldata.ts
View file

@ -7,7 +7,7 @@ export function check(script: Buffer | Array<number | Buffer>): boolean {
return buffer.length > 1 && buffer[0] === OPS.OP_RETURN; return buffer.length > 1 && buffer[0] === OPS.OP_RETURN;
} }
check.toJSON = function() { check.toJSON = () => {
return 'null data output'; return 'null data output';
}; };

10
ts_src/templates/pubkey/input.ts
View file

@ -1,14 +1,16 @@
// {signature} // {signature}
import { Stack } from '../../payments';
import * as bscript from '../../script'; import * as bscript from '../../script';
export function check(script: Buffer | Array<number | Buffer>): boolean { export function check(script: Buffer | Stack): boolean {
const chunks = <Array<number | Buffer>>bscript.decompile(script); const chunks = bscript.decompile(script) as Stack;
return ( return (
chunks.length === 1 && bscript.isCanonicalScriptSignature(<Buffer>chunks[0]) chunks.length === 1 &&
bscript.isCanonicalScriptSignature(chunks[0] as Buffer)
); );
} }
check.toJSON = function() { check.toJSON = () => {
return 'pubKey input'; return 'pubKey input';
}; };

9
ts_src/templates/pubkey/output.ts
View file

@ -1,17 +1,18 @@
// {pubKey} OP_CHECKSIG // {pubKey} OP_CHECKSIG
import { Stack } from '../../payments';
import * as bscript from '../../script'; import * as bscript from '../../script';
import { OPS } from '../../script'; import { OPS } from '../../script';
export function check(script: Buffer | Array<number | Buffer>): boolean { export function check(script: Buffer | Stack): boolean {
const chunks = <Array<number | Buffer>>bscript.decompile(script); const chunks = bscript.decompile(script) as Stack;
return ( return (
chunks.length === 2 && chunks.length === 2 &&
bscript.isCanonicalPubKey(<Buffer>chunks[0]) && bscript.isCanonicalPubKey(chunks[0] as Buffer) &&
chunks[1] === OPS.OP_CHECKSIG chunks[1] === OPS.OP_CHECKSIG
); );
} }
check.toJSON = function() { check.toJSON = () => {
return 'pubKey output'; return 'pubKey output';
}; };

11
ts_src/templates/pubkeyhash/input.ts
View file

@ -1,16 +1,17 @@
// {signature} {pubKey} // {signature} {pubKey}
import { Stack } from '../../payments';
import * as bscript from '../../script'; import * as bscript from '../../script';
export function check(script: Buffer | Array<number | Buffer>): boolean { export function check(script: Buffer | Stack): boolean {
const chunks = <Array<number | Buffer>>bscript.decompile(script); const chunks = bscript.decompile(script) as Stack;
return ( return (
chunks.length === 2 && chunks.length === 2 &&
bscript.isCanonicalScriptSignature(<Buffer>chunks[0]) && bscript.isCanonicalScriptSignature(chunks[0] as Buffer) &&
bscript.isCanonicalPubKey(<Buffer>chunks[1]) bscript.isCanonicalPubKey(chunks[1] as Buffer)
); );
} }
check.toJSON = function() { check.toJSON = () => {
return 'pubKeyHash input'; return 'pubKeyHash input';
}; };

2
ts_src/templates/pubkeyhash/output.ts
View file

@ -15,6 +15,6 @@ export function check(script: Buffer | Array<number | Buffer>): boolean {
buffer[24] === OPS.OP_CHECKSIG buffer[24] === OPS.OP_CHECKSIG
); );
} }
check.toJSON = function() { check.toJSON = () => {
return 'pubKeyHash output'; return 'pubKeyHash output';
}; };

2
ts_src/templates/scripthash/input.ts
View file

@ -56,6 +56,6 @@ export function check(
return false; return false;
} }
check.toJSON = function() { check.toJSON = () => {
return 'scriptHash input'; return 'scriptHash input';
}; };

2
ts_src/templates/scripthash/output.ts
View file

@ -13,6 +13,6 @@ export function check(script: Buffer | Array<number | Buffer>): boolean {
buffer[22] === OPS.OP_EQUAL buffer[22] === OPS.OP_EQUAL
); );
} }
check.toJSON = function() { check.toJSON = () => {
return 'scriptHash output'; return 'scriptHash output';
}; };

6
ts_src/templates/witnesscommitment/output.ts
View file

@ -1,10 +1,10 @@
// OP_RETURN {aa21a9ed} {commitment} // OP_RETURN {aa21a9ed} {commitment}
import * as bscript from '../../script'; import * as bscript from '../../script';
import { OPS } from '../../script';
import * as types from '../../types'; import * as types from '../../types';
const typeforce = require('typeforce'); const typeforce = require('typeforce');
import { OPS } from '../../script';
const HEADER: Buffer = Buffer.from('aa21a9ed', 'hex'); const HEADER: Buffer = Buffer.from('aa21a9ed', 'hex');
@ -19,7 +19,7 @@ export function check(script: Buffer | Array<number | Buffer>): boolean {
); );
} }
check.toJSON = function() { check.toJSON = () => {
return 'Witness commitment output'; return 'Witness commitment output';
}; };
@ -36,5 +36,5 @@ export function encode(commitment: Buffer): Buffer {
export function decode(buffer: Buffer): Buffer { export function decode(buffer: Buffer): Buffer {
typeforce(check, buffer); typeforce(check, buffer);
return (<Buffer>bscript.decompile(buffer)![1]).slice(4, 36); return (bscript.decompile(buffer)![1] as Buffer).slice(4, 36);
} }

11
ts_src/templates/witnesspubkeyhash/input.ts
View file

@ -1,20 +1,21 @@
// {signature} {pubKey} // {signature} {pubKey}
import { Stack } from '../../payments';
import * as bscript from '../../script'; import * as bscript from '../../script';
function isCompressedCanonicalPubKey(pubKey: Buffer): boolean { function isCompressedCanonicalPubKey(pubKey: Buffer): boolean {
return bscript.isCanonicalPubKey(pubKey) && pubKey.length === 33; return bscript.isCanonicalPubKey(pubKey) && pubKey.length === 33;
} }
export function check(script: Buffer | Array<number | Buffer>): boolean { export function check(script: Buffer | Stack): boolean {
const chunks = <Array<number | Buffer>>bscript.decompile(script); const chunks = bscript.decompile(script) as Stack;
return ( return (
chunks.length === 2 && chunks.length === 2 &&
bscript.isCanonicalScriptSignature(<Buffer>chunks[0]) && bscript.isCanonicalScriptSignature(chunks[0] as Buffer) &&
isCompressedCanonicalPubKey(<Buffer>chunks[1]) isCompressedCanonicalPubKey(chunks[1] as Buffer)
); );
} }
check.toJSON = function() { check.toJSON = () => {
return 'witnessPubKeyHash input'; return 'witnessPubKeyHash input';
}; };

2
ts_src/templates/witnesspubkeyhash/output.ts
View file

@ -8,6 +8,6 @@ export function check(script: Buffer | Array<number | Buffer>): boolean {
return buffer.length === 22 && buffer[0] === OPS.OP_0 && buffer[1] === 0x14; return buffer.length === 22 && buffer[0] === OPS.OP_0 && buffer[1] === 0x14;
} }
check.toJSON = function() { check.toJSON = () => {
return 'Witness pubKeyHash output'; return 'Witness pubKeyHash output';
}; };

7
ts_src/templates/witnessscripthash/input.ts
View file

@ -7,10 +7,7 @@ import * as p2ms from '../multisig';
import * as p2pk from '../pubkey'; import * as p2pk from '../pubkey';
import * as p2pkh from '../pubkeyhash'; import * as p2pkh from '../pubkeyhash';
export function check( export function check(chunks: Buffer[], allowIncomplete?: boolean): boolean {
chunks: Array<Buffer>,
allowIncomplete?: boolean,
): boolean {
typeforce(typeforce.Array, chunks); typeforce(typeforce.Array, chunks);
if (chunks.length < 1) return false; if (chunks.length < 1) return false;
@ -45,6 +42,6 @@ export function check(
return false; return false;
} }
check.toJSON = function() { check.toJSON = () => {
return 'witnessScriptHash input'; return 'witnessScriptHash input';
}; };

2
ts_src/templates/witnessscripthash/output.ts
View file

@ -8,6 +8,6 @@ export function check(script: Buffer | Array<number | Buffer>): boolean {
return buffer.length === 34 && buffer[0] === OPS.OP_0 && buffer[1] === 0x20; return buffer.length === 34 && buffer[0] === OPS.OP_0 && buffer[1] === 0x20;
} }
check.toJSON = function() { check.toJSON = () => {
return 'Witness scriptHash output'; return 'Witness scriptHash output';
}; };

168
ts_src/transaction.ts
View file

@ -1,9 +1,9 @@
import * as bcrypto from './crypto';
import * as bscript from './script';
import * as types from './types';
import * as bufferutils from './bufferutils'; import * as bufferutils from './bufferutils';
import { reverseBuffer } from './bufferutils'; import { reverseBuffer } from './bufferutils';
import * as bcrypto from './crypto';
import * as bscript from './script';
import { OPS as opcodes } from './script'; import { OPS as opcodes } from './script';
import * as types from './types';
const typeforce = require('typeforce'); const typeforce = require('typeforce');
const varuint = require('varuint-bitcoin'); const varuint = require('varuint-bitcoin');
@ -14,7 +14,7 @@ function varSliceSize(someScript: Buffer): number {
return varuint.encodingLength(length) + length; return varuint.encodingLength(length) + length;
} }
function vectorSize(someVector: Array<Buffer>): number { function vectorSize(someVector: Buffer[]): number {
const length = someVector.length; const length = someVector.length;
return ( return (
@ -26,7 +26,7 @@ function vectorSize(someVector: Array<Buffer>): number {
} }
const EMPTY_SCRIPT: Buffer = Buffer.allocUnsafe(0); const EMPTY_SCRIPT: Buffer = Buffer.allocUnsafe(0);
const EMPTY_WITNESS: Array<Buffer> = []; const EMPTY_WITNESS: Buffer[] = [];
const ZERO: Buffer = Buffer.from( const ZERO: Buffer = Buffer.from(
'0000000000000000000000000000000000000000000000000000000000000000', '0000000000000000000000000000000000000000000000000000000000000000',
'hex', 'hex',
@ -42,33 +42,30 @@ const BLANK_OUTPUT: BlankOutput = {
}; };
function isOutput(out: Output | BlankOutput): out is Output { function isOutput(out: Output | BlankOutput): out is Output {
return (<Output>out).value !== undefined; return (out as Output).value !== undefined;
} }
export type BlankOutput = { export interface BlankOutput {
script: Buffer; script: Buffer;
valueBuffer: Buffer; valueBuffer: Buffer;
}; }
export type Output = { export interface Output {
script: Buffer; script: Buffer;
value: number; value: number;
}; }
export type Input = { type OpenOutput = Output | BlankOutput;
export interface Input {
hash: Buffer; hash: Buffer;
index: number; index: number;
script: Buffer; script: Buffer;
sequence: number; sequence: number;
witness: Array<Buffer>; witness: Buffer[];
}; }
export class Transaction { export class Transaction {
version: number;
locktime: number;
ins: Array<Input>;
outs: Array<Output | BlankOutput>;
static readonly DEFAULT_SEQUENCE = 0xffffffff; static readonly DEFAULT_SEQUENCE = 0xffffffff;
static readonly SIGHASH_ALL = 0x01; static readonly SIGHASH_ALL = 0x01;
static readonly SIGHASH_NONE = 0x02; static readonly SIGHASH_NONE = 0x02;
@ -77,14 +74,7 @@ export class Transaction {
static readonly ADVANCED_TRANSACTION_MARKER = 0x00; static readonly ADVANCED_TRANSACTION_MARKER = 0x00;
static readonly ADVANCED_TRANSACTION_FLAG = 0x01; static readonly ADVANCED_TRANSACTION_FLAG = 0x01;
constructor() { static fromBuffer(buffer: Buffer, _NO_STRICT?: boolean): Transaction {
this.version = 1;
this.locktime = 0;
this.ins = [];
this.outs = [];
}
static fromBuffer(buffer: Buffer, __noStrict?: boolean): Transaction {
let offset: number = 0; let offset: number = 0;
function readSlice(n: number): Buffer { function readSlice(n: number): Buffer {
@ -120,10 +110,10 @@ export class Transaction {
return readSlice(readVarInt()); return readSlice(readVarInt());
} }
function readVector(): Array<Buffer> { function readVector(): Buffer[] {
const count = readVarInt(); const count = readVarInt();
const vector: Array<Buffer> = []; const vector: Buffer[] = [];
for (var i = 0; i < count; i++) vector.push(readVarSlice()); for (let i = 0; i < count; i++) vector.push(readVarSlice());
return vector; return vector;
} }
@ -143,7 +133,7 @@ export class Transaction {
} }
const vinLen = readVarInt(); const vinLen = readVarInt();
for (var i = 0; i < vinLen; ++i) { for (let i = 0; i < vinLen; ++i) {
tx.ins.push({ tx.ins.push({
hash: readSlice(32), hash: readSlice(32),
index: readUInt32(), index: readUInt32(),
@ -154,7 +144,7 @@ export class Transaction {
} }
const voutLen = readVarInt(); const voutLen = readVarInt();
for (i = 0; i < voutLen; ++i) { for (let i = 0; i < voutLen; ++i) {
tx.outs.push({ tx.outs.push({
value: readUInt64(), value: readUInt64(),
script: readVarSlice(), script: readVarSlice(),
@ -162,7 +152,7 @@ export class Transaction {
} }
if (hasWitnesses) { if (hasWitnesses) {
for (i = 0; i < vinLen; ++i) { for (let i = 0; i < vinLen; ++i) {
tx.ins[i].witness = readVector(); tx.ins[i].witness = readVector();
} }
@ -173,7 +163,7 @@ export class Transaction {
tx.locktime = readUInt32(); tx.locktime = readUInt32();
if (__noStrict) return tx; if (_NO_STRICT) return tx;
if (offset !== buffer.length) if (offset !== buffer.length)
throw new Error('Transaction has unexpected data'); throw new Error('Transaction has unexpected data');
@ -186,12 +176,24 @@ export class Transaction {
static isCoinbaseHash(buffer: Buffer): boolean { static isCoinbaseHash(buffer: Buffer): boolean {
typeforce(types.Hash256bit, buffer); typeforce(types.Hash256bit, buffer);
for (var i = 0; i < 32; ++i) { for (let i = 0; i < 32; ++i) {
if (buffer[i] !== 0) return false; if (buffer[i] !== 0) return false;
} }
return true; return true;
} }
version: number;
locktime: number;
ins: Input[];
outs: OpenOutput[];
constructor() {
this.version = 1;
this.locktime = 0;
this.ins = [];
this.outs = [];
}
isCoinbase(): boolean { isCoinbase(): boolean {
return ( return (
this.ins.length === 1 && Transaction.isCoinbaseHash(this.ins[0].hash) this.ins.length === 1 && Transaction.isCoinbaseHash(this.ins[0].hash)
@ -221,10 +223,10 @@ export class Transaction {
// Add the input and return the input's index // Add the input and return the input's index
return ( return (
this.ins.push({ this.ins.push({
hash: hash, hash,
index: index, index,
script: scriptSig || EMPTY_SCRIPT, script: scriptSig || EMPTY_SCRIPT,
sequence: <number>sequence, sequence: sequence as number,
witness: EMPTY_WITNESS, witness: EMPTY_WITNESS,
}) - 1 }) - 1
); );
@ -237,7 +239,7 @@ export class Transaction {
return ( return (
this.outs.push({ this.outs.push({
script: scriptPubKey, script: scriptPubKey,
value: value, value,
}) - 1 }) - 1
); );
} }
@ -262,27 +264,6 @@ export class Transaction {
return this.__byteLength(true); return this.__byteLength(true);
} }
private __byteLength(__allowWitness: boolean): number {
const hasWitnesses = __allowWitness && this.hasWitnesses();
return (
(hasWitnesses ? 10 : 8) +
varuint.encodingLength(this.ins.length) +
varuint.encodingLength(this.outs.length) +
this.ins.reduce((sum, input) => {
return sum + 40 + varSliceSize(input.script);
}, 0) +
this.outs.reduce((sum, output) => {
return sum + 8 + varSliceSize(output.script);
}, 0) +
(hasWitnesses
? this.ins.reduce((sum, input) => {
return sum + vectorSize(input.witness);
}, 0)
: 0)
);
}
clone(): Transaction { clone(): Transaction {
const newTx = new Transaction(); const newTx = new Transaction();
newTx.version = this.version; newTx.version = this.version;
@ -301,7 +282,7 @@ export class Transaction {
newTx.outs = this.outs.map(txOut => { newTx.outs = this.outs.map(txOut => {
return { return {
script: txOut.script, script: txOut.script,
value: (<Output>txOut).value, value: (txOut as Output).value,
}; };
}); });
@ -358,7 +339,7 @@ export class Transaction {
txTmp.outs.length = inIndex + 1; txTmp.outs.length = inIndex + 1;
// "blank" outputs before // "blank" outputs before
for (var i = 0; i < inIndex; i++) { for (let i = 0; i < inIndex; i++) {
txTmp.outs[i] = BLANK_OUTPUT; txTmp.outs[i] = BLANK_OUTPUT;
} }
@ -471,7 +452,7 @@ export class Transaction {
toffset = 0; toffset = 0;
this.outs.forEach(out => { this.outs.forEach(out => {
writeUInt64((<Output>out).value); writeUInt64((out as Output).value);
writeVarSlice(out.script); writeVarSlice(out.script);
}); });
@ -484,7 +465,7 @@ export class Transaction {
tbuffer = Buffer.allocUnsafe(8 + varSliceSize(output.script)); tbuffer = Buffer.allocUnsafe(8 + varSliceSize(output.script));
toffset = 0; toffset = 0;
writeUInt64((<Output>output).value); writeUInt64((output as Output).value);
writeVarSlice(output.script); writeVarSlice(output.script);
hashOutputs = bcrypto.hash256(tbuffer); hashOutputs = bcrypto.hash256(tbuffer);
@ -523,13 +504,50 @@ export class Transaction {
return this.__toBuffer(buffer, initialOffset, true); return this.__toBuffer(buffer, initialOffset, true);
} }
toHex() {
return this.toBuffer(undefined, undefined).toString('hex');
}
setInputScript(index: number, scriptSig: Buffer) {
typeforce(types.tuple(types.Number, types.Buffer), arguments);
this.ins[index].script = scriptSig;
}
setWitness(index: number, witness: Buffer[]) {
typeforce(types.tuple(types.Number, [types.Buffer]), arguments);
this.ins[index].witness = witness;
}
private __byteLength(_ALLOW_WITNESS: boolean): number {
const hasWitnesses = _ALLOW_WITNESS && this.hasWitnesses();
return (
(hasWitnesses ? 10 : 8) +
varuint.encodingLength(this.ins.length) +
varuint.encodingLength(this.outs.length) +
this.ins.reduce((sum, input) => {
return sum + 40 + varSliceSize(input.script);
}, 0) +
this.outs.reduce((sum, output) => {
return sum + 8 + varSliceSize(output.script);
}, 0) +
(hasWitnesses
? this.ins.reduce((sum, input) => {
return sum + vectorSize(input.witness);
}, 0)
: 0)
);
}
private __toBuffer( private __toBuffer(
buffer?: Buffer, buffer?: Buffer,
initialOffset?: number, initialOffset?: number,
__allowWitness?: boolean, _ALLOW_WITNESS?: boolean,
): Buffer { ): Buffer {
if (!buffer) if (!buffer)
buffer = <Buffer>Buffer.allocUnsafe(this.__byteLength(__allowWitness!)); buffer = Buffer.allocUnsafe(this.__byteLength(_ALLOW_WITNESS!)) as Buffer;
let offset = initialOffset || 0; let offset = initialOffset || 0;
@ -563,14 +581,14 @@ export class Transaction {
writeSlice(slice); writeSlice(slice);
} }
function writeVector(vector: Array<Buffer>) { function writeVector(vector: Buffer[]) {
writeVarInt(vector.length); writeVarInt(vector.length);
vector.forEach(writeVarSlice); vector.forEach(writeVarSlice);
} }
writeInt32(this.version); writeInt32(this.version);
const hasWitnesses = __allowWitness && this.hasWitnesses(); const hasWitnesses = _ALLOW_WITNESS && this.hasWitnesses();
if (hasWitnesses) { if (hasWitnesses) {
writeUInt8(Transaction.ADVANCED_TRANSACTION_MARKER); writeUInt8(Transaction.ADVANCED_TRANSACTION_MARKER);
@ -609,20 +627,4 @@ export class Transaction {
if (initialOffset !== undefined) return buffer.slice(initialOffset, offset); if (initialOffset !== undefined) return buffer.slice(initialOffset, offset);
return buffer; return buffer;
} }
toHex() {
return this.toBuffer(undefined, undefined).toString('hex');
}
setInputScript(index: number, scriptSig: Buffer) {
typeforce(types.tuple(types.Number, types.Buffer), arguments);
this.ins[index].script = scriptSig;
}
setWitness(index: number, witness: Array<Buffer>) {
typeforce(types.tuple(types.Number, [types.Buffer]), arguments);
this.ins[index].witness = witness;
}
} }

377
ts_src/transaction_builder.ts
View file

@ -1,24 +1,25 @@
import { Network } from './networks'; import * as baddress from './address';
import * as networks from './networks';
import { reverseBuffer } from './bufferutils'; import { reverseBuffer } from './bufferutils';
import { Transaction, Output } from './transaction'; import * as classify from './classify';
import * as bcrypto from './crypto';
import { ECPairInterface } from './ecpair'; import { ECPairInterface } from './ecpair';
import * as ECPair from './ecpair'; import * as ECPair from './ecpair';
import * as types from './types'; import { Network } from './networks';
import * as baddress from './address'; import * as networks from './networks';
import * as bcrypto from './crypto';
import * as bscript from './script';
import { Payment } from './payments'; import { Payment } from './payments';
import * as payments from './payments'; import * as payments from './payments';
import * as classify from './classify'; import * as bscript from './script';
import { OPS as ops } from './script'; import { OPS as ops } from './script';
import { Output, Transaction } from './transaction';
import * as types from './types';
const typeforce = require('typeforce'); const typeforce = require('typeforce');
const SCRIPT_TYPES = classify.types; const SCRIPT_TYPES = classify.types;
type TxbSignatures = Array<Buffer> | Array<Buffer | undefined>; type MaybeBuffer = Buffer | undefined;
type TxbPubkeys = Array<Buffer | undefined>; type TxbSignatures = Buffer[] | MaybeBuffer[];
type TxbWitness = Array<Buffer>; type TxbPubkeys = MaybeBuffer[];
type TxbWitness = Buffer[];
type TxbScriptType = string; type TxbScriptType = string;
type TxbScript = Buffer; type TxbScript = Buffer;
@ -58,24 +59,6 @@ function txIsTransaction(tx: Buffer | string | Transaction): tx is Transaction {
} }
export class TransactionBuilder { export class TransactionBuilder {
network: Network;
maximumFeeRate: number;
private __prevTxSet: { [index: string]: boolean };
private __inputs: Array<TxbInput>;
private __tx: Transaction;
constructor(network?: Network, maximumFeeRate?: number) {
this.__prevTxSet = {};
this.network = network || networks.bitcoin;
// WARNING: This is __NOT__ to be relied on, its just another potential safety mechanism (safety in-depth)
this.maximumFeeRate = maximumFeeRate || 2500;
this.__inputs = [];
this.__tx = new Transaction();
this.__tx.version = 2;
}
static fromTransaction( static fromTransaction(
transaction: Transaction, transaction: Transaction,
network?: Network, network?: Network,
@ -88,7 +71,7 @@ export class TransactionBuilder {
// Copy outputs (done first to avoid signature invalidation) // Copy outputs (done first to avoid signature invalidation)
transaction.outs.forEach(txOut => { transaction.outs.forEach(txOut => {
txb.addOutput(txOut.script, (<Output>txOut).value); txb.addOutput(txOut.script, (txOut as Output).value);
}); });
// Copy inputs // Copy inputs
@ -101,19 +84,37 @@ export class TransactionBuilder {
}); });
// fix some things not possible through the public API // fix some things not possible through the public API
txb.__inputs.forEach((input, i) => { txb.__INPUTS.forEach((input, i) => {
fixMultisigOrder(input, transaction, i); fixMultisigOrder(input, transaction, i);
}); });
return txb; return txb;
} }
network: Network;
maximumFeeRate: number;
private __PREV_TX_SET: { [index: string]: boolean };
private __INPUTS: TxbInput[];
private __TX: Transaction;
constructor(network?: Network, maximumFeeRate?: number) {
this.__PREV_TX_SET = {};
this.network = network || networks.bitcoin;
// WARNING: This is __NOT__ to be relied on, its just another potential safety mechanism (safety in-depth)
this.maximumFeeRate = maximumFeeRate || 2500;
this.__INPUTS = [];
this.__TX = new Transaction();
this.__TX.version = 2;
}
setLockTime(locktime: number): void { setLockTime(locktime: number): void {
typeforce(types.UInt32, locktime); typeforce(types.UInt32, locktime);
// if any signatures exist, throw // if any signatures exist, throw
if ( if (
this.__inputs.some(input => { this.__INPUTS.some(input => {
if (!input.signatures) return false; if (!input.signatures) return false;
return input.signatures.some(s => s !== undefined); return input.signatures.some(s => s !== undefined);
@ -122,14 +123,14 @@ export class TransactionBuilder {
throw new Error('No, this would invalidate signatures'); throw new Error('No, this would invalidate signatures');
} }
this.__tx.locktime = locktime; this.__TX.locktime = locktime;
} }
setVersion(version: number): void { setVersion(version: number): void {
typeforce(types.UInt32, version); typeforce(types.UInt32, version);
// XXX: this might eventually become more complex depending on what the versions represent // XXX: this might eventually become more complex depending on what the versions represent
this.__tx.version = version; this.__TX.version = version;
} }
addInput( addInput(
@ -142,7 +143,7 @@ export class TransactionBuilder {
throw new Error('No, this would invalidate signatures'); throw new Error('No, this would invalidate signatures');
} }
let value: number | undefined = undefined; let value: number | undefined;
// is it a hex string? // is it a hex string?
if (txIsString(txHash)) { if (txIsString(txHash)) {
@ -153,18 +154,128 @@ export class TransactionBuilder {
} else if (txIsTransaction(txHash)) { } else if (txIsTransaction(txHash)) {
const txOut = txHash.outs[vout]; const txOut = txHash.outs[vout];
prevOutScript = txOut.script; prevOutScript = txOut.script;
value = (<Output>txOut).value; value = (txOut as Output).value;
txHash = <Buffer>txHash.getHash(false); txHash = txHash.getHash(false) as Buffer;
} }
return this.__addInputUnsafe(txHash, vout, { return this.__addInputUnsafe(txHash, vout, {
sequence: sequence, sequence,
prevOutScript: prevOutScript, prevOutScript,
value: value, value,
}); });
} }
addOutput(scriptPubKey: string | Buffer, value: number): number {
if (!this.__canModifyOutputs()) {
throw new Error('No, this would invalidate signatures');
}
// Attempt to get a script if it's a base58 or bech32 address string
if (typeof scriptPubKey === 'string') {
scriptPubKey = baddress.toOutputScript(scriptPubKey, this.network);
}
return this.__TX.addOutput(scriptPubKey, value);
}
build(): Transaction {
return this.__build(false);
}
buildIncomplete(): Transaction {
return this.__build(true);
}
sign(
vin: number,
keyPair: ECPairInterface,
redeemScript: Buffer,
hashType: number,
witnessValue: number,
witnessScript: Buffer,
) {
// TODO: remove keyPair.network matching in 4.0.0
if (keyPair.network && keyPair.network !== this.network)
throw new TypeError('Inconsistent network');
if (!this.__INPUTS[vin]) throw new Error('No input at index: ' + vin);
hashType = hashType || Transaction.SIGHASH_ALL;
if (this.__needsOutputs(hashType))
throw new Error('Transaction needs outputs');
const input = this.__INPUTS[vin];
// if redeemScript was previously provided, enforce consistency
if (
input.redeemScript !== undefined &&
redeemScript &&
!input.redeemScript.equals(redeemScript)
) {
throw new Error('Inconsistent redeemScript');
}
const ourPubKey = keyPair.publicKey || keyPair.getPublicKey!();
if (!canSign(input)) {
if (witnessValue !== undefined) {
if (input.value !== undefined && input.value !== witnessValue)
throw new Error('Input did not match witnessValue');
typeforce(types.Satoshi, witnessValue);
input.value = witnessValue;
}
if (!canSign(input)) {
const prepared = prepareInput(
input,
ourPubKey,
redeemScript,
witnessScript,
);
// updates inline
Object.assign(input, prepared);
}
if (!canSign(input)) throw Error(input.prevOutType + ' not supported');
}
// ready to sign
let signatureHash: Buffer;
if (input.hasWitness) {
signatureHash = this.__TX.hashForWitnessV0(
vin,
input.signScript as Buffer,
input.value as number,
hashType,
);
} else {
signatureHash = this.__TX.hashForSignature(
vin,
input.signScript as Buffer,
hashType,
);
}
// enforce in order signing of public keys
const signed = input.pubkeys!.some((pubKey, i) => {
if (!ourPubKey.equals(pubKey!)) return false;
if (input.signatures![i]) throw new Error('Signature already exists');
// TODO: add tests
if (ourPubKey.length !== 33 && input.hasWitness) {
throw new Error(
'BIP143 rejects uncompressed public keys in P2WPKH or P2WSH',
);
}
const signature = keyPair.sign(signatureHash);
input.signatures![i] = bscript.signature.encode(signature, hashType);
return true;
});
if (!signed) throw new Error('Key pair cannot sign for this input');
}
private __addInputUnsafe( private __addInputUnsafe(
txHash: Buffer, txHash: Buffer,
vout: number, vout: number,
@ -175,10 +286,10 @@ export class TransactionBuilder {
} }
const prevTxOut = txHash.toString('hex') + ':' + vout; const prevTxOut = txHash.toString('hex') + ':' + vout;
if (this.__prevTxSet[prevTxOut] !== undefined) if (this.__PREV_TX_SET[prevTxOut] !== undefined)
throw new Error('Duplicate TxOut: ' + prevTxOut); throw new Error('Duplicate TxOut: ' + prevTxOut);
let input = <TxbInput>{}; let input: TxbInput = {};
// derive what we can from the scriptSig // derive what we can from the scriptSig
if (options.script !== undefined) { if (options.script !== undefined) {
@ -208,48 +319,27 @@ export class TransactionBuilder {
input.prevOutType = prevOutType || classify.output(options.prevOutScript); input.prevOutType = prevOutType || classify.output(options.prevOutScript);
} }
const vin = this.__tx.addInput( const vin = this.__TX.addInput(
txHash, txHash,
vout, vout,
options.sequence, options.sequence,
options.scriptSig, options.scriptSig,
); );
this.__inputs[vin] = input; this.__INPUTS[vin] = input;
this.__prevTxSet[prevTxOut] = true; this.__PREV_TX_SET[prevTxOut] = true;
return vin; return vin;
} }
addOutput(scriptPubKey: string | Buffer, value: number): number {
if (!this.__canModifyOutputs()) {
throw new Error('No, this would invalidate signatures');
}
// Attempt to get a script if it's a base58 or bech32 address string
if (typeof scriptPubKey === 'string') {
scriptPubKey = baddress.toOutputScript(scriptPubKey, this.network);
}
return this.__tx.addOutput(scriptPubKey, value);
}
build(): Transaction {
return this.__build(false);
}
buildIncomplete(): Transaction {
return this.__build(true);
}
private __build(allowIncomplete?: boolean): Transaction { private __build(allowIncomplete?: boolean): Transaction {
if (!allowIncomplete) { if (!allowIncomplete) {
if (!this.__tx.ins.length) throw new Error('Transaction has no inputs'); if (!this.__TX.ins.length) throw new Error('Transaction has no inputs');
if (!this.__tx.outs.length) throw new Error('Transaction has no outputs'); if (!this.__TX.outs.length) throw new Error('Transaction has no outputs');
} }
const tx = this.__tx.clone(); const tx = this.__TX.clone();
// create script signatures from inputs // create script signatures from inputs
this.__inputs.forEach((input, i) => { this.__INPUTS.forEach((input, i) => {
if (!input.prevOutType && !allowIncomplete) if (!input.prevOutType && !allowIncomplete)
throw new Error('Transaction is not complete'); throw new Error('Transaction is not complete');
@ -275,97 +365,8 @@ export class TransactionBuilder {
return tx; return tx;
} }
sign(
vin: number,
keyPair: ECPairInterface,
redeemScript: Buffer,
hashType: number,
witnessValue: number,
witnessScript: Buffer,
) {
// TODO: remove keyPair.network matching in 4.0.0
if (keyPair.network && keyPair.network !== this.network)
throw new TypeError('Inconsistent network');
if (!this.__inputs[vin]) throw new Error('No input at index: ' + vin);
hashType = hashType || Transaction.SIGHASH_ALL;
if (this.__needsOutputs(hashType))
throw new Error('Transaction needs outputs');
const input = this.__inputs[vin];
// if redeemScript was previously provided, enforce consistency
if (
input.redeemScript !== undefined &&
redeemScript &&
!input.redeemScript.equals(redeemScript)
) {
throw new Error('Inconsistent redeemScript');
}
const ourPubKey = keyPair.publicKey || keyPair.getPublicKey!();
if (!canSign(input)) {
if (witnessValue !== undefined) {
if (input.value !== undefined && input.value !== witnessValue)
throw new Error("Input didn't match witnessValue");
typeforce(types.Satoshi, witnessValue);
input.value = witnessValue;
}
if (!canSign(input)) {
const prepared = prepareInput(
input,
ourPubKey,
redeemScript,
witnessScript,
);
// updates inline
Object.assign(input, prepared);
}
if (!canSign(input)) throw Error(input.prevOutType + ' not supported');
}
// ready to sign
let signatureHash: Buffer;
if (input.hasWitness) {
signatureHash = this.__tx.hashForWitnessV0(
vin,
<Buffer>input.signScript,
<number>input.value,
hashType,
);
} else {
signatureHash = this.__tx.hashForSignature(
vin,
<Buffer>input.signScript,
hashType,
);
}
// enforce in order signing of public keys
const signed = input.pubkeys!.some((pubKey, i) => {
if (!ourPubKey.equals(pubKey!)) return false;
if (input.signatures![i]) throw new Error('Signature already exists');
// TODO: add tests
if (ourPubKey.length !== 33 && input.hasWitness) {
throw new Error(
'BIP143 rejects uncompressed public keys in P2WPKH or P2WSH',
);
}
const signature = keyPair.sign(signatureHash);
input.signatures![i] = bscript.signature.encode(signature, hashType);
return true;
});
if (!signed) throw new Error('Key pair cannot sign for this input');
}
private __canModifyInputs(): boolean { private __canModifyInputs(): boolean {
return this.__inputs.every(input => { return this.__INPUTS.every(input => {
if (!input.signatures) return true; if (!input.signatures) return true;
return input.signatures.every(signature => { return input.signatures.every(signature => {
@ -381,14 +382,14 @@ export class TransactionBuilder {
private __needsOutputs(signingHashType: number): boolean { private __needsOutputs(signingHashType: number): boolean {
if (signingHashType === Transaction.SIGHASH_ALL) { if (signingHashType === Transaction.SIGHASH_ALL) {
return this.__tx.outs.length === 0; return this.__TX.outs.length === 0;
} }
// if inputs are being signed with SIGHASH_NONE, we don't strictly need outputs // if inputs are being signed with SIGHASH_NONE, we don't strictly need outputs
// .build() will fail, but .buildIncomplete() is OK // .build() will fail, but .buildIncomplete() is OK
return ( return (
this.__tx.outs.length === 0 && this.__TX.outs.length === 0 &&
this.__inputs.some(input => { this.__INPUTS.some(input => {
if (!input.signatures) return false; if (!input.signatures) return false;
return input.signatures.some(signature => { return input.signatures.some(signature => {
@ -402,10 +403,10 @@ export class TransactionBuilder {
} }
private __canModifyOutputs(): boolean { private __canModifyOutputs(): boolean {
const nInputs = this.__tx.ins.length; const nInputs = this.__TX.ins.length;
const nOutputs = this.__tx.outs.length; const nOutputs = this.__TX.outs.length;
return this.__inputs.every(input => { return this.__INPUTS.every(input => {
if (input.signatures === undefined) return true; if (input.signatures === undefined) return true;
return input.signatures.every(signature => { return input.signatures.every(signature => {
@ -427,11 +428,14 @@ export class TransactionBuilder {
private __overMaximumFees(bytes: number): boolean { private __overMaximumFees(bytes: number): boolean {
// not all inputs will have .value defined // not all inputs will have .value defined
const incoming = this.__inputs.reduce((a, x) => a + (x.value! >>> 0), 0); const incoming = this.__INPUTS.reduce((a, x) => a + (x.value! >>> 0), 0);
// but all outputs do, and if we have any input value // but all outputs do, and if we have any input value
// we can immediately determine if the outputs are too small // we can immediately determine if the outputs are too small
const outgoing = this.__tx.outs.reduce((a, x) => a + (<Output>x).value, 0); const outgoing = this.__TX.outs.reduce(
(a, x) => a + (x as Output).value,
0,
);
const fee = incoming - outgoing; const fee = incoming - outgoing;
const feeRate = fee / bytes; const feeRate = fee / bytes;
@ -441,7 +445,7 @@ export class TransactionBuilder {
function expandInput( function expandInput(
scriptSig: Buffer, scriptSig: Buffer,
witnessStack: Array<Buffer>, witnessStack: Buffer[],
type?: string, type?: string,
scriptPubKey?: Buffer, scriptPubKey?: Buffer,
): TxbInput { ): TxbInput {
@ -502,8 +506,8 @@ function expandInput(
return { return {
prevOutType: SCRIPT_TYPES.P2MS, prevOutType: SCRIPT_TYPES.P2MS,
pubkeys: pubkeys, pubkeys,
signatures: signatures, signatures,
maxSignatures: m, maxSignatures: m,
}; };
} }
@ -681,12 +685,12 @@ function prepareInput(
witnessScript: Buffer, witnessScript: Buffer,
): TxbInput { ): TxbInput {
if (redeemScript && witnessScript) { if (redeemScript && witnessScript) {
const p2wsh = <Payment>( const p2wsh = payments.p2wsh({
payments.p2wsh({ redeem: { output: witnessScript } }) redeem: { output: witnessScript },
); }) as Payment;
const p2wshAlt = <Payment>payments.p2wsh({ output: redeemScript }); const p2wshAlt = payments.p2wsh({ output: redeemScript }) as Payment;
const p2sh = <Payment>payments.p2sh({ redeem: { output: redeemScript } }); const p2sh = payments.p2sh({ redeem: { output: redeemScript } }) as Payment;
const p2shAlt = <Payment>payments.p2sh({ redeem: p2wsh }); const p2shAlt = payments.p2sh({ redeem: p2wsh }) as Payment;
// enforces P2SH(P2WSH(...)) // enforces P2SH(P2WSH(...))
if (!p2wsh.hash!.equals(p2wshAlt.hash!)) if (!p2wsh.hash!.equals(p2wshAlt.hash!))
@ -706,7 +710,7 @@ function prepareInput(
expanded.signatures = input.signatures; expanded.signatures = input.signatures;
} }
let signScript = witnessScript; const signScript = witnessScript;
if (expanded.type === SCRIPT_TYPES.P2WPKH) if (expanded.type === SCRIPT_TYPES.P2WPKH)
throw new Error('P2SH(P2WSH(P2WPKH)) is a consensus failure'); throw new Error('P2SH(P2WSH(P2WPKH)) is a consensus failure');
@ -731,12 +735,12 @@ function prepareInput(
} }
if (redeemScript) { if (redeemScript) {
const p2sh = <Payment>payments.p2sh({ redeem: { output: redeemScript } }); const p2sh = payments.p2sh({ redeem: { output: redeemScript } }) as Payment;
if (input.prevOutScript) { if (input.prevOutScript) {
let p2shAlt; let p2shAlt;
try { try {
p2shAlt = <Payment>payments.p2sh({ output: input.prevOutScript }); p2shAlt = payments.p2sh({ output: input.prevOutScript }) as Payment;
} catch (e) { } catch (e) {
throw new Error('PrevOutScript must be P2SH'); throw new Error('PrevOutScript must be P2SH');
} }
@ -799,7 +803,7 @@ function prepareInput(
expanded.signatures = input.signatures; expanded.signatures = input.signatures;
} }
let signScript = witnessScript; const signScript = witnessScript;
if (expanded.type === SCRIPT_TYPES.P2WPKH) if (expanded.type === SCRIPT_TYPES.P2WPKH)
throw new Error('P2WSH(P2WPKH) is a consensus failure'); throw new Error('P2WSH(P2WPKH) is a consensus failure');
@ -846,9 +850,8 @@ function prepareInput(
let signScript = input.prevOutScript; let signScript = input.prevOutScript;
if (expanded.type === SCRIPT_TYPES.P2WPKH) { if (expanded.type === SCRIPT_TYPES.P2WPKH) {
signScript = <Buffer>( signScript = payments.p2pkh({ pubkey: expanded.pubkeys[0] })
payments.p2pkh({ pubkey: expanded.pubkeys[0] }).output .output as Buffer;
);
} }
return { return {
@ -868,7 +871,7 @@ function prepareInput(
const prevOutScript = payments.p2pkh({ pubkey: ourPubKey }).output; const prevOutScript = payments.p2pkh({ pubkey: ourPubKey }).output;
return { return {
prevOutType: SCRIPT_TYPES.P2PKH, prevOutType: SCRIPT_TYPES.P2PKH,
prevOutScript: prevOutScript, prevOutScript,
hasWitness: false, hasWitness: false,
signScript: prevOutScript, signScript: prevOutScript,
@ -884,8 +887,8 @@ function build(
input: TxbInput, input: TxbInput,
allowIncomplete?: boolean, allowIncomplete?: boolean,
): Payment | undefined { ): Payment | undefined {
const pubkeys = <Array<Buffer>>(input.pubkeys || []); const pubkeys = (input.pubkeys || []) as Buffer[];
let signatures = <Array<Buffer>>(input.signatures || []); let signatures = (input.signatures || []) as Buffer[];
switch (type) { switch (type) {
case SCRIPT_TYPES.P2PKH: { case SCRIPT_TYPES.P2PKH: {

8
ts_src/types.ts
View file

@ -8,7 +8,7 @@ export function UInt31(value: number): boolean {
export function BIP32Path(value: string): boolean { export function BIP32Path(value: string): boolean {
return typeforce.String(value) && !!value.match(/^(m\/)?(\d+'?\/)*\d+'?$/); return typeforce.String(value) && !!value.match(/^(m\/)?(\d+'?\/)*\d+'?$/);
} }
BIP32Path.toJSON = function() { BIP32Path.toJSON = () => {
return 'BIP32 derivation path'; return 'BIP32 derivation path';
}; };
@ -35,10 +35,10 @@ export const Network = typeforce.compile({
export const Buffer256bit = typeforce.BufferN(32); export const Buffer256bit = typeforce.BufferN(32);
export const Hash160bit = typeforce.BufferN(20); export const Hash160bit = typeforce.BufferN(20);
export const Hash256bit = typeforce.BufferN(32); export const Hash256bit = typeforce.BufferN(32);
export const Number = typeforce.Number; export const Number = typeforce.Number; // tslint:disable-line variable-name
export const Array = typeforce.Array; export const Array = typeforce.Array;
export const Boolean = typeforce.Boolean; export const Boolean = typeforce.Boolean; // tslint:disable-line variable-name
export const String = typeforce.String; export const String = typeforce.String; // tslint:disable-line variable-name
export const Buffer = typeforce.Buffer; export const Buffer = typeforce.Buffer;
export const Hex = typeforce.Hex; export const Hex = typeforce.Hex;
export const maybe = typeforce.maybe; export const maybe = typeforce.maybe;

34
tslint.json Normal file
View file

@ -0,0 +1,34 @@
{
"defaultSeverity": "error",
"extends": ["tslint:recommended"],
"rules": {
"arrow-parens": [true, "ban-single-arg-parens"],
"curly": false,
"indent": [
true,
"spaces",
2
],
"interface-name": [false],
"match-default-export-name": true,
"max-classes-per-file": [false],
"member-access": [true, "no-public"],
"no-bitwise": false,
"no-console": false,
"no-empty": [true, "allow-empty-catch"],
"no-implicit-dependencies": true,
"no-return-await": true,
"no-var-requires": false,
"no-unused-expression": false,
"object-literal-sort-keys": false,
"quotemark": [true, "single"],
"variable-name": [
true,
"ban-keywords",
"check-format",
"allow-leading-underscore",
"allow-pascal-case"
]
},
"rulesDirectory": []
}

8
types/address.d.ts vendored
View file

@ -1,14 +1,14 @@
/// <reference types="node" /> /// <reference types="node" />
import { Network } from './networks'; import { Network } from './networks';
export declare type Base58CheckResult = { export interface Base58CheckResult {
hash: Buffer; hash: Buffer;
version: number; version: number;
}; }
export declare type Bech32Result = { export interface Bech32Result {
version: number; version: number;
prefix: string; prefix: string;
data: Buffer; data: Buffer;
}; }
export declare function fromBase58Check(address: string): Base58CheckResult; export declare function fromBase58Check(address: string): Base58CheckResult;
export declare function fromBech32(address: string): Bech32Result; export declare function fromBech32(address: string): Bech32Result;
export declare function toBase58Check(hash: Buffer, version: number): string; export declare function toBase58Check(hash: Buffer, version: number): string;

14
types/block.d.ts vendored
View file

@ -1,6 +1,10 @@
/// <reference types="node" /> /// <reference types="node" />
import { Transaction } from './transaction'; import { Transaction } from './transaction';
export declare class Block { export declare class Block {
static fromBuffer(buffer: Buffer): Block;
static fromHex(hex: string): Block;
static calculateTarget(bits: number): Buffer;
static calculateMerkleRoot(transactions: Transaction[], forWitness?: boolean): Buffer;
version: number; version: number;
prevHash?: Buffer; prevHash?: Buffer;
merkleRoot?: Buffer; merkleRoot?: Buffer;
@ -8,12 +12,8 @@ export declare class Block {
witnessCommit?: Buffer; witnessCommit?: Buffer;
bits: number; bits: number;
nonce: number; nonce: number;
transactions?: Array<Transaction>; transactions?: Transaction[];
constructor(); constructor();
static fromBuffer(buffer: Buffer): Block;
static fromHex(hex: string): Block;
static calculateTarget(bits: number): Buffer;
static calculateMerkleRoot(transactions: Array<Transaction>, forWitness?: boolean): Buffer;
getWitnessCommit(): Buffer | null; getWitnessCommit(): Buffer | null;
hasWitnessCommit(): boolean; hasWitnessCommit(): boolean;
hasWitness(): boolean; hasWitness(): boolean;
@ -25,7 +25,7 @@ export declare class Block {
toHex(headersOnly: boolean): string; toHex(headersOnly: boolean): string;
checkTxRoots(): boolean; checkTxRoots(): boolean;
checkMerkleRoot(): boolean; checkMerkleRoot(): boolean;
__checkMerkleRoot(): boolean;
__checkWitnessCommit(): boolean;
checkProofOfWork(): boolean; checkProofOfWork(): boolean;
private __checkMerkleRoot;
private __checkWitnessCommit;
} }

2
types/classify.d.ts vendored
View file

@ -12,5 +12,5 @@ declare const types: {
}; };
declare function classifyOutput(script: Buffer): string; declare function classifyOutput(script: Buffer): string;
declare function classifyInput(script: Buffer, allowIncomplete: boolean): string; declare function classifyInput(script: Buffer, allowIncomplete: boolean): string;
declare function classifyWitness(script: Array<Buffer>, allowIncomplete: boolean): string; declare function classifyWitness(script: Buffer[], allowIncomplete: boolean): string;
export { classifyInput as input, classifyOutput as output, classifyWitness as witness, types, }; export { classifyInput as input, classifyOutput as output, classifyWitness as witness, types, };

4
types/ecpair.d.ts vendored
View file

@ -18,7 +18,7 @@ export interface ECPairInterface {
declare class ECPair implements ECPairInterface { declare class ECPair implements ECPairInterface {
compressed: boolean; compressed: boolean;
network: Network; network: Network;
private __d?; private __D?;
private __Q?; private __Q?;
constructor(d?: Buffer, Q?: Buffer, options?: ECPairOptions); constructor(d?: Buffer, Q?: Buffer, options?: ECPairOptions);
readonly privateKey: Buffer | undefined; readonly privateKey: Buffer | undefined;
@ -29,6 +29,6 @@ declare class ECPair implements ECPairInterface {
} }
declare function fromPrivateKey(buffer: Buffer, options?: ECPairOptions): ECPair; declare function fromPrivateKey(buffer: Buffer, options?: ECPairOptions): ECPair;
declare function fromPublicKey(buffer: Buffer, options?: ECPairOptions): ECPair; declare function fromPublicKey(buffer: Buffer, options?: ECPairOptions): ECPair;
declare function fromWIF(string: string, network?: Network | Array<Network>): ECPair; declare function fromWIF(wifString: string, network?: Network | Network[]): ECPair;
declare function makeRandom(options?: ECPairOptions): ECPair; declare function makeRandom(options?: ECPairOptions): ECPair;
export { makeRandom, fromPrivateKey, fromPublicKey, fromWIF }; export { makeRandom, fromPrivateKey, fromPublicKey, fromWIF };

12
types/index.d.ts vendored
View file

@ -1,17 +1,17 @@
import * as bip32 from 'bip32'; import * as bip32 from 'bip32';
import * as ECPair from './ecpair';
import * as address from './address'; import * as address from './address';
import * as crypto from './crypto'; import * as crypto from './crypto';
import * as ECPair from './ecpair';
import * as networks from './networks'; import * as networks from './networks';
import * as payments from './payments'; import * as payments from './payments';
import * as script from './script'; import * as script from './script';
export { ECPair, address, bip32, crypto, networks, payments, script }; export { ECPair, address, bip32, crypto, networks, payments, script };
export { Block } from './block'; export { Block } from './block';
export { OPS as opcodes } from './script';
export { Transaction } from './transaction'; export { Transaction } from './transaction';
export { TransactionBuilder } from './transaction_builder'; export { TransactionBuilder } from './transaction_builder';
export { OPS as opcodes } from './script';
export { Payment, PaymentOpts } from './payments';
export { Input as TxInput, Output as TxOutput } from './transaction';
export { Network } from './networks';
export { OpCode } from './script';
export { BIP32Interface } from 'bip32'; export { BIP32Interface } from 'bip32';
export { Network } from './networks';
export { Payment, PaymentOpts } from './payments';
export { OpCode } from './script';
export { Input as TxInput, Output as TxOutput } from './transaction';

10
types/networks.d.ts vendored
View file

@ -1,15 +1,15 @@
export declare type Network = { export interface Network {
messagePrefix: string; messagePrefix: string;
bech32: string; bech32: string;
bip32: bip32; bip32: Bip32;
pubKeyHash: number; pubKeyHash: number;
scriptHash: number; scriptHash: number;
wif: number; wif: number;
}; }
declare type bip32 = { interface Bip32 {
public: number; public: number;
private: number; private: number;
}; }
export declare const bitcoin: Network; export declare const bitcoin: Network;
export declare const regtest: Network; export declare const regtest: Network;
export declare const testnet: Network; export declare const testnet: Network;

12
types/payments/index.d.ts vendored
View file

@ -10,21 +10,25 @@ import { p2wsh } from './p2wsh';
export interface Payment { export interface Payment {
network?: Network; network?: Network;
output?: Buffer; output?: Buffer;
data?: Array<Buffer>; data?: Buffer[];
m?: number; m?: number;
n?: number; n?: number;
pubkeys?: Array<Buffer>; pubkeys?: Buffer[];
input?: Buffer; input?: Buffer;
signatures?: Array<Buffer>; signatures?: Buffer[];
pubkey?: Buffer; pubkey?: Buffer;
signature?: Buffer; signature?: Buffer;
address?: string; address?: string;
hash?: Buffer; hash?: Buffer;
redeem?: Payment; redeem?: Payment;
witness?: Array<Buffer>; witness?: Buffer[];
} }
export declare type PaymentFunction = () => Payment;
export interface PaymentOpts { export interface PaymentOpts {
validate?: boolean; validate?: boolean;
allowIncomplete?: boolean; allowIncomplete?: boolean;
} }
export declare type StackElement = Buffer | number;
export declare type Stack = StackElement[];
export declare type StackFunction = () => Stack;
export { embed, p2ms, p2pk, p2pkh, p2sh, p2wpkh, p2wsh }; export { embed, p2ms, p2pk, p2pkh, p2sh, p2wpkh, p2wsh };

2
types/payments/lazy.d.ts vendored
View file

@ -1,2 +1,2 @@
export declare function prop(object: Object, name: string, f: () => any): void; export declare function prop(object: {}, name: string, f: () => any): void;
export declare function value<T>(f: () => T): () => T; export declare function value<T>(f: () => T): () => T;

7
types/script.d.ts vendored
View file

@ -1,16 +1,17 @@
/// <reference types="node" /> /// <reference types="node" />
import { Stack } from './payments';
import * as scriptNumber from './script_number'; import * as scriptNumber from './script_number';
import * as scriptSignature from './script_signature'; import * as scriptSignature from './script_signature';
export declare type OpCode = number; export declare type OpCode = number;
export declare const OPS: { export declare const OPS: {
[index: string]: number; [index: string]: number;
}; };
export declare function isPushOnly(value: Array<number | Buffer>): boolean; export declare function isPushOnly(value: Stack): boolean;
export declare function compile(chunks: Buffer | Array<number | Buffer>): Buffer; export declare function compile(chunks: Buffer | Stack): Buffer;
export declare function decompile(buffer: Buffer | Array<number | Buffer>): Array<number | Buffer> | null; export declare function decompile(buffer: Buffer | Array<number | Buffer>): Array<number | Buffer> | null;
export declare function toASM(chunks: Buffer | Array<number | Buffer>): string; export declare function toASM(chunks: Buffer | Array<number | Buffer>): string;
export declare function fromASM(asm: string): Buffer; export declare function fromASM(asm: string): Buffer;
export declare function toStack(chunks: Buffer | Array<number | Buffer>): Array<Buffer>; export declare function toStack(chunks: Buffer | Array<number | Buffer>): Buffer[];
export declare function isCanonicalPubKey(buffer: Buffer): boolean; export declare function isCanonicalPubKey(buffer: Buffer): boolean;
export declare function isDefinedHashType(hashType: number): boolean; export declare function isDefinedHashType(hashType: number): boolean;
export declare function isCanonicalScriptSignature(buffer: Buffer): boolean; export declare function isCanonicalScriptSignature(buffer: Buffer): boolean;

2
types/script_number.d.ts vendored
View file

@ -1,3 +1,3 @@
/// <reference types="node" /> /// <reference types="node" />
export declare function decode(buffer: Buffer, maxLength?: number, minimal?: boolean): number; export declare function decode(buffer: Buffer, maxLength?: number, minimal?: boolean): number;
export declare function encode(number: number): Buffer; export declare function encode(_number: number): Buffer;

3
types/templates/multisig/input.d.ts vendored
View file

@ -1,5 +1,6 @@
/// <reference types="node" /> /// <reference types="node" />
export declare function check(script: Buffer | Array<number | Buffer>, allowIncomplete?: boolean): boolean; import { Stack } from '../../payments';
export declare function check(script: Buffer | Stack, allowIncomplete?: boolean): boolean;
export declare namespace check { export declare namespace check {
var toJSON: () => string; var toJSON: () => string;
} }

3
types/templates/multisig/output.d.ts vendored
View file

@ -1,5 +1,6 @@
/// <reference types="node" /> /// <reference types="node" />
export declare function check(script: Buffer | Array<number | Buffer>, allowIncomplete?: boolean): boolean; import { Stack } from '../../payments';
export declare function check(script: Buffer | Stack, allowIncomplete?: boolean): boolean;
export declare namespace check { export declare namespace check {
var toJSON: () => string; var toJSON: () => string;
} }

3
types/templates/pubkey/input.d.ts vendored
View file

@ -1,5 +1,6 @@
/// <reference types="node" /> /// <reference types="node" />
export declare function check(script: Buffer | Array<number | Buffer>): boolean; import { Stack } from '../../payments';
export declare function check(script: Buffer | Stack): boolean;
export declare namespace check { export declare namespace check {
var toJSON: () => string; var toJSON: () => string;
} }

3
types/templates/pubkey/output.d.ts vendored
View file

@ -1,5 +1,6 @@
/// <reference types="node" /> /// <reference types="node" />
export declare function check(script: Buffer | Array<number | Buffer>): boolean; import { Stack } from '../../payments';
export declare function check(script: Buffer | Stack): boolean;
export declare namespace check { export declare namespace check {
var toJSON: () => string; var toJSON: () => string;
} }

3
types/templates/pubkeyhash/input.d.ts vendored
View file

@ -1,5 +1,6 @@
/// <reference types="node" /> /// <reference types="node" />
export declare function check(script: Buffer | Array<number | Buffer>): boolean; import { Stack } from '../../payments';
export declare function check(script: Buffer | Stack): boolean;
export declare namespace check { export declare namespace check {
var toJSON: () => string; var toJSON: () => string;
} }

3
types/templates/witnesspubkeyhash/input.d.ts vendored
View file

@ -1,5 +1,6 @@
/// <reference types="node" /> /// <reference types="node" />
export declare function check(script: Buffer | Array<number | Buffer>): boolean; import { Stack } from '../../payments';
export declare function check(script: Buffer | Stack): boolean;
export declare namespace check { export declare namespace check {
var toJSON: () => string; var toJSON: () => string;
} }

2
types/templates/witnessscripthash/input.d.ts vendored
View file

@ -1,5 +1,5 @@
/// <reference types="node" /> /// <reference types="node" />
export declare function check(chunks: Array<Buffer>, allowIncomplete?: boolean): boolean; export declare function check(chunks: Buffer[], allowIncomplete?: boolean): boolean;
export declare namespace check { export declare namespace check {
var toJSON: () => string; var toJSON: () => string;
} }

34
types/transaction.d.ts vendored
View file

@ -1,24 +1,21 @@
/// <reference types="node" /> /// <reference types="node" />
export declare type BlankOutput = { export interface BlankOutput {
script: Buffer; script: Buffer;
valueBuffer: Buffer; valueBuffer: Buffer;
}; }
export declare type Output = { export interface Output {
script: Buffer; script: Buffer;
value: number; value: number;
}; }
export declare type Input = { declare type OpenOutput = Output | BlankOutput;
export interface Input {
hash: Buffer; hash: Buffer;
index: number; index: number;
script: Buffer; script: Buffer;
sequence: number; sequence: number;
witness: Array<Buffer>; witness: Buffer[];
}; }
export declare class Transaction { export declare class Transaction {
version: number;
locktime: number;
ins: Array<Input>;
outs: Array<Output | BlankOutput>;
static readonly DEFAULT_SEQUENCE = 4294967295; static readonly DEFAULT_SEQUENCE = 4294967295;
static readonly SIGHASH_ALL = 1; static readonly SIGHASH_ALL = 1;
static readonly SIGHASH_NONE = 2; static readonly SIGHASH_NONE = 2;
@ -26,10 +23,14 @@ export declare class Transaction {
static readonly SIGHASH_ANYONECANPAY = 128; static readonly SIGHASH_ANYONECANPAY = 128;
static readonly ADVANCED_TRANSACTION_MARKER = 0; static readonly ADVANCED_TRANSACTION_MARKER = 0;
static readonly ADVANCED_TRANSACTION_FLAG = 1; static readonly ADVANCED_TRANSACTION_FLAG = 1;
constructor(); static fromBuffer(buffer: Buffer, _NO_STRICT?: boolean): Transaction;
static fromBuffer(buffer: Buffer, __noStrict?: boolean): Transaction;
static fromHex(hex: string): Transaction; static fromHex(hex: string): Transaction;
static isCoinbaseHash(buffer: Buffer): boolean; static isCoinbaseHash(buffer: Buffer): boolean;
version: number;
locktime: number;
ins: Input[];
outs: OpenOutput[];
constructor();
isCoinbase(): boolean; isCoinbase(): boolean;
addInput(hash: Buffer, index: number, sequence?: number, scriptSig?: Buffer): number; addInput(hash: Buffer, index: number, sequence?: number, scriptSig?: Buffer): number;
addOutput(scriptPubKey: Buffer, value: number): number; addOutput(scriptPubKey: Buffer, value: number): number;
@ -37,7 +38,6 @@ export declare class Transaction {
weight(): number; weight(): number;
virtualSize(): number; virtualSize(): number;
byteLength(): number; byteLength(): number;
private __byteLength;
clone(): Transaction; clone(): Transaction;
/** /**
* Hash transaction for signing a specific input. * Hash transaction for signing a specific input.
@ -52,8 +52,10 @@ export declare class Transaction {
getHash(forWitness?: boolean): Buffer; getHash(forWitness?: boolean): Buffer;
getId(): string; getId(): string;
toBuffer(buffer?: Buffer, initialOffset?: number): Buffer; toBuffer(buffer?: Buffer, initialOffset?: number): Buffer;
private __toBuffer;
toHex(): string; toHex(): string;
setInputScript(index: number, scriptSig: Buffer): void; setInputScript(index: number, scriptSig: Buffer): void;
setWitness(index: number, witness: Array<Buffer>): void; setWitness(index: number, witness: Buffer[]): void;
private __byteLength;
private __toBuffer;
} }
export {};

14
types/transaction_builder.d.ts vendored
View file

@ -1,24 +1,24 @@
/// <reference types="node" /> /// <reference types="node" />
import { ECPairInterface } from './ecpair';
import { Network } from './networks'; import { Network } from './networks';
import { Transaction } from './transaction'; import { Transaction } from './transaction';
import { ECPairInterface } from './ecpair';
export declare class TransactionBuilder { export declare class TransactionBuilder {
static fromTransaction(transaction: Transaction, network?: Network): TransactionBuilder;
network: Network; network: Network;
maximumFeeRate: number; maximumFeeRate: number;
private __prevTxSet; private __PREV_TX_SET;
private __inputs; private __INPUTS;
private __tx; private __TX;
constructor(network?: Network, maximumFeeRate?: number); constructor(network?: Network, maximumFeeRate?: number);
static fromTransaction(transaction: Transaction, network?: Network): TransactionBuilder;
setLockTime(locktime: number): void; setLockTime(locktime: number): void;
setVersion(version: number): void; setVersion(version: number): void;
addInput(txHash: Buffer | string | Transaction, vout: number, sequence: number, prevOutScript: Buffer): number; addInput(txHash: Buffer | string | Transaction, vout: number, sequence: number, prevOutScript: Buffer): number;
private __addInputUnsafe;
addOutput(scriptPubKey: string | Buffer, value: number): number; addOutput(scriptPubKey: string | Buffer, value: number): number;
build(): Transaction; build(): Transaction;
buildIncomplete(): Transaction; buildIncomplete(): Transaction;
private __build;
sign(vin: number, keyPair: ECPairInterface, redeemScript: Buffer, hashType: number, witnessValue: number, witnessScript: Buffer): void; sign(vin: number, keyPair: ECPairInterface, redeemScript: Buffer, hashType: number, witnessValue: number, witnessScript: Buffer): void;
private __addInputUnsafe;
private __build;
private __canModifyInputs; private __canModifyInputs;
private __needsOutputs; private __needsOutputs;
private __canModifyOutputs; private __canModifyOutputs;