79 lines
2.3 KiB
JavaScript
79 lines
2.3 KiB
JavaScript
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var base58check = require('./base58check');
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var constants = require('./constants');
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function Address(str) {
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if (!str) {
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this.buf = undefined;
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return;
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}
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if (typeof str !== 'string')
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throw new Error('address: Input must be a string, or undefined');
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this.fromString(str);
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};
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Address.prototype.getNetwork = function() {
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if (this.buf[0] === constants.mainnet.pubkeyHash || this.buf[0] === constants.mainnet.p2sh)
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return 'mainnet';
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else if (this.buf[0] === constants.testnet.pubkeyHash || this.buf[0] === constants.testnet.p2sh)
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return 'testnet';
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else
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return 'unknown';
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};
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Address.prototype.getHash = function() {
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var pubkeyHash = this.buf.slice(1);
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if (pubkeyHash.length === 20)
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return pubkeyHash;
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else
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throw new Error('address: Hash must be exactly 20 bytes');
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};
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Address.prototype.getType = function() {
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if (this.buf[0] === constants.mainnet.pubkeyHash || this.buf[0] === constants.testnet.pubkeyHash)
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return 'pubkeyHash';
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else if (this.buf[0] === constants.mainnet.p2sh || this.buf[0] === constants.testnet.p2sh)
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return 'p2sh';
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else
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return 'unknown';
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};
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Address.prototype.isValid = function() {
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if (Buffer.isBuffer(this.buf) && this.buf.length === 1 + 20)
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return true;
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else
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return false;
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};
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Address.prototype.setBuf = function(buf, network, type) {
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var version;
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if (!Buffer.isBuffer(buf))
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throw new Error('address: buf must be a buffer');
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if (buf.length !== 20)
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throw new Error('address: buf must be 20 bytes');
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if (typeof network === 'undefined')
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throw new Error('address: Must specify network ("mainnet" or "testnet")');
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if (typeof type === 'undefined')
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throw new Error('address: Must specify type ("pubkeyHash" or "p2sh")');
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if (network !== 'mainnet' && network !== 'testnet')
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throw new Error('address: Unknown network');
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if (type !== 'pubkeyHash' && type !== 'p2sh')
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throw new Error('address: Unknown type');
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version = new Buffer([constants[network][type]]);
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this.buf = Buffer.concat([version, buf]);
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};
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Address.prototype.fromString = function(str) {
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var buf = base58check.decode(str);
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if (buf.length !== 1 + 20)
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throw new Error('address: Addresses must be exactly 21 bytes');
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this.buf = buf;
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}
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Address.prototype.toString = function() {
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return base58check.encode(this.buf);
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};
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module.exports = Address;
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