100 lines
3.3 KiB
JavaScript
100 lines
3.3 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const types = require("./types");
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const bscript = require("./script");
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const networks = require("./networks");
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const payments = require("./payments");
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const bech32 = require('bech32');
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const bs58check = require('bs58check');
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const typeforce = require('typeforce');
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function fromBase58Check(address) {
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const payload = bs58check.decode(address);
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// TODO: 4.0.0, move to "toOutputScript"
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if (payload.length < 21)
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throw new TypeError(address + ' is too short');
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if (payload.length > 21)
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throw new TypeError(address + ' is too long');
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const version = payload.readUInt8(0);
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const hash = payload.slice(1);
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return { version: version, hash: hash };
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}
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exports.fromBase58Check = fromBase58Check;
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function fromBech32(address) {
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const result = bech32.decode(address);
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const data = bech32.fromWords(result.words.slice(1));
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return {
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version: result.words[0],
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prefix: result.prefix,
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data: Buffer.from(data),
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};
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}
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exports.fromBech32 = fromBech32;
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function toBase58Check(hash, version) {
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typeforce(types.tuple(types.Hash160bit, types.UInt8), arguments);
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const payload = Buffer.allocUnsafe(21);
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payload.writeUInt8(version, 0);
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hash.copy(payload, 1);
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return bs58check.encode(payload);
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}
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exports.toBase58Check = toBase58Check;
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function toBech32(data, version, prefix) {
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const words = bech32.toWords(data);
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words.unshift(version);
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return bech32.encode(prefix, words);
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}
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exports.toBech32 = toBech32;
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function fromOutputScript(output, network) {
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//TODO: Network
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network = network || networks.bitcoin;
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try {
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return payments.p2pkh({ output, network }).address;
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}
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catch (e) { }
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try {
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return payments.p2sh({ output, network }).address;
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}
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catch (e) { }
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try {
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return payments.p2wpkh({ output, network }).address;
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}
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catch (e) { }
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try {
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return payments.p2wsh({ output, network }).address;
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}
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catch (e) { }
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throw new Error(bscript.toASM(output) + ' has no matching Address');
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}
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exports.fromOutputScript = fromOutputScript;
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function toOutputScript(address, network) {
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network = network || networks.bitcoin;
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let decodeBase58 = undefined;
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let decodeBech32 = undefined;
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try {
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decodeBase58 = fromBase58Check(address);
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}
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catch (e) { }
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if (decodeBase58) {
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if (decodeBase58.version === network.pubKeyHash)
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return payments.p2pkh({ hash: decodeBase58.hash }).output;
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if (decodeBase58.version === network.scriptHash)
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return payments.p2sh({ hash: decodeBase58.hash }).output;
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}
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else {
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try {
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decodeBech32 = fromBech32(address);
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}
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catch (e) { }
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if (decodeBech32) {
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if (decodeBech32.prefix !== network.bech32)
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throw new Error(address + ' has an invalid prefix');
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if (decodeBech32.version === 0) {
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if (decodeBech32.data.length === 20)
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return payments.p2wpkh({ hash: decodeBech32.data }).output;
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if (decodeBech32.data.length === 32)
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return payments.p2wsh({ hash: decodeBech32.data }).output;
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}
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}
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}
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throw new Error(address + ' has no matching Script');
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}
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exports.toOutputScript = toOutputScript;
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