status-im/ethers.js
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Moved address functions to utils (things without need ofr signing do not need all the extra requires).

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This commit is contained in:
ricmoo 2016-08-23 20:12:12 -04:00
parent 8257e3f885
commit a9aaeefe24
6 changed files with 123 additions and 123 deletions
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8
index.js
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@ -26,8 +26,8 @@ utils.defineProperty(exportUtils, 'sha256', utils.sha256);
// http://ethereum.stackexchange.com/questions/760/how-is-the-address-of-an-ethereum-contract-computed
utils.defineProperty(exportUtils, 'getContractAddress', function(transaction) {
return SigningKey.getAddress('0x' + utils.sha3(rlp.encode([
utils.hexOrBuffer(SigningKey.getAddress(transaction.from)),
return utils.getAddress('0x' + utils.sha3(rlp.encode([
utils.hexOrBuffer(utils.getAddress(transaction.from)),
utils.hexOrBuffer(utils.hexlify(transaction.nonce, 'nonce'))
])).slice(12).toString('hex'));
});
@ -40,8 +40,8 @@ utils.defineProperty(Wallet, 'etherSymbol', '\uD835\uDF63');
utils.defineProperty(Wallet, 'formatEther', units.formatEther);
utils.defineProperty(Wallet, 'parseEther', units.parseEther);
//utils.defineProperty(Wallet, 'getAddress', SigningKey.getAddress);
//utils.defineProperty(Wallet, 'getIcapAddress', SigningKey.getIcapAddress);
utils.defineProperty(Wallet, 'getAddress', utils.getAddress);
utils.defineProperty(Wallet, 'getIcapAddress', utils.getIcapAddress);
utils.defineProperty(Wallet, 'isCrowdsaleWallet', secretStorage.isCrowdsaleWallet);
utils.defineProperty(Wallet, 'isValidWallet', secretStorage.isValidWallet);

23
lib/providers.js
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@ -3,7 +3,6 @@
var inherits = require('inherits');
var XMLHttpRequest = require('xmlhttprequest').XMLHttpRequest;
var SigningKey = require('./signing-key.js');
var utils = require('./utils.js');
// The required methods a provider must support
@ -120,13 +119,17 @@ function postProcess(client, method, params, makeBN) {
}
utils.defineProperty(SendAsyncProvider.prototype, 'getBalance', function(address, blockNumber) {
address = SigningKey.getAddress(address);
return postProcess(this.client, 'eth_getBalance', [address, validBlock(blockNumber)], true);
return postProcess(this.client, 'eth_getBalance', [
utils.getAddress(address),
validBlock(blockNumber)
], true);
});
utils.defineProperty(SendAsyncProvider.prototype, 'getTransactionCount', function(address, blockNumber) {
address = SigningKey.getAddress(address);
return postProcess(this.client, 'eth_getTransactionCount', [address, validBlock(blockNumber)], false);
return postProcess(this.client, 'eth_getTransactionCount', [
utils.getAddress(address),
validBlock(blockNumber)
], false);
});
utils.defineProperty(SendAsyncProvider.prototype, 'getGasPrice', function() {
@ -260,14 +263,14 @@ function EtherscanProvider(options) {
utils.defineProperty(providers, 'EtherscanProvider', EtherscanProvider);
utils.defineProperty(EtherscanProvider.prototype, 'getBalance', function(address, blockNumber) {
address = SigningKey.getAddress(address);
address = utils.getAddress(address);
blockNumber = validBlock(blockNumber);
var query = ('module=account&action=balance&address=' + address + '&tag=' + blockNumber);
return this._send(query, base10ToBN);
});
utils.defineProperty(EtherscanProvider.prototype, 'getTransactionCount', function(address, blockNumber) {
address = SigningKey.getAddress(address);
address = utils.getAddress(address);
blockNumber = validBlock(blockNumber);
var query = ('module=proxy&action=eth_getTransactionCount&address=' + address + '&tag=' + blockNumber);
return this._send(query, hexToNumber);
@ -285,7 +288,7 @@ utils.defineProperty(EtherscanProvider.prototype, 'sendTransaction', function(si
});
utils.defineProperty(EtherscanProvider.prototype, 'call', function(transaction) {
var address = SigningKey.getAddress(transaction.to);
var address = utils.getAddress(transaction.to);
var data = transaction.data;
if (!utils.isHexString(data)) { throw new Error('invalid data'); }
var query = ('module=proxy&action=eth_call&to=' + address + '&data=' + data);
@ -293,7 +296,7 @@ utils.defineProperty(EtherscanProvider.prototype, 'call', function(transaction)
});
utils.defineProperty(EtherscanProvider.prototype, 'estimateGas', function(transaction) {
var address = SigningKey.getAddress(transaction.to);
var address = utils.getAddress(transaction.to);
var query = 'module=proxy&action=eth_estimateGas&to=' + address;
if (transaction.gasPrice) {
@ -303,7 +306,7 @@ utils.defineProperty(EtherscanProvider.prototype, 'estimateGas', function(transa
query += '&gas=' + utils.hexlify(transaction.gasLimit);
}
if (transaction.from) {
query += '&from=' + SigningKey.getAddress(transaction.from);
query += '&from=' + utils.getAddress(transaction.from);
}
if (transaction.data) {
query += '&data=' + ensureHex(transaction.data);

4
lib/secret-storage.js
View File

@ -82,7 +82,7 @@ utils.defineProperty(secretStorage, 'decryptCrowdsale', function(json, password)
var data = JSON.parse(json);
// Ethereum Address
var ethaddr = SigningKey.getAddress(searchPath(data, 'ethaddr'));
var ethaddr = utils.getAddress(searchPath(data, 'ethaddr'));
// Encrypted Seed
var encseed = new Buffer(searchPath(data, 'encseed'), 'hex');
@ -203,7 +203,7 @@ utils.defineProperty(secretStorage, 'decrypt', function(json, password, progress
}
var signingKey = new SigningKey(privateKey);
if (signingKey.address !== SigningKey.getAddress(data.address)) {
if (signingKey.address !== utils.getAddress(data.address)) {
reject(new Error('address mismatch'));
return;
}

103
lib/signing-key.js
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@ -7,98 +7,6 @@ var utils = require('./utils.js');
var secp256k1 = new (elliptic.ec)('secp256k1');
function getChecksumAddress(address) {
if (typeof(address) !== 'string' || !address.match(/^0x[0-9A-Fa-f]{40}$/)) {
throw new Error('invalid address');
}
address = address.substring(2).toLowerCase();
var hashed = utils.sha3(address);
address = address.split('');
for (var i = 0; i < 40; i += 2) {
if ((hashed[i >> 1] >> 4) >= 8) {
address[i] = address[i].toUpperCase();
}
if ((hashed[i >> 1] & 0x0f) >= 8) {
address[i + 1] = address[i + 1].toUpperCase();
}
}
return '0x' + address.join('');
}
function getAddress(address) {
var result = null;
if (typeof(address) !== 'string') { throw new Error('invalid address'); }
if (address.match(/^(0x)?[0-9a-fA-F]{40}$/)) {
// Missing the 0x prefix
if (address.substring(0, 2) !== '0x') { address = '0x' + address; }
result = getChecksumAddress(address);
// It is a checksummed address with a bad checksum
if (address.match(/([A-F].*[a-f])|([a-f].*[A-F])/) && result !== address) {
throw new Error('invalid address checksum');
}
// Maybe ICAP? (we only support direct mode)
} else if (address.match(/^XE[0-9]{2}[0-9A-Za-z]{30,31}$/)) {
// It is an ICAP address with a bad checksum
if (address.substring(2, 4) !== ibanChecksum(address)) {
throw new Error('invalid address icap checksum');
}
result = (new utils.BN(address.substring(4), 36)).toString(16);
while (result.length < 40) { result = '0' + result; }
result = getChecksumAddress('0x' + result);
} else {
throw new Error('invalid address');
}
return result;
}
// See: https://en.wikipedia.org/wiki/International_Bank_Account_Number
var ibanChecksum = (function() {
// Create lookup table
var ibanLookup = {};
for (var i = 0; i < 10; i++) { ibanLookup[String(i)] = String(i); }
for (var i = 0; i < 26; i++) { ibanLookup[String.fromCharCode(65 + i)] = String(10 + i); }
// How many decimal digits can we process? (for 64-bit float, this is 15)
var safeDigits = Math.floor(Math.log10(Number.MAX_SAFE_INTEGER));
return function(address) {
address = address.toUpperCase();
address = address.substring(4) + address.substring(0, 2) + '00';
var expanded = address.split('');
for (var i = 0; i < expanded.length; i++) {
expanded[i] = ibanLookup[expanded[i]];
}
expanded = expanded.join('');
// Javascript can handle integers safely up to 15 (decimal) digits
while (expanded.length >= safeDigits){
var block = expanded.substring(0, safeDigits);
expanded = parseInt(block, 10) % 97 + expanded.substring(block.length);
}
var checksum = String(98 - (parseInt(expanded, 10) % 97));
while (checksum.length < 2) { checksum = '0' + checksum; }
return checksum;
};
})();
function SigningKey(privateKey) {
if (!(this instanceof SigningKey)) { throw new Error('missing new'); }
@ -112,7 +20,7 @@ function SigningKey(privateKey) {
var keyPair = secp256k1.keyFromPrivate(privateKey);
var publicKey = (new Buffer(keyPair.getPublic(false, 'hex'), 'hex')).slice(1);
var address = getAddress(utils.sha3(publicKey).slice(12).toString('hex'));
var address = utils.getAddress(utils.sha3(publicKey).slice(12).toString('hex'));
utils.defineProperty(this, 'address', address)
utils.defineProperty(this, 'signDigest', function(digest) {
@ -120,14 +28,5 @@ function SigningKey(privateKey) {
});
}
utils.defineProperty(SigningKey, 'getAddress', getAddress);
utils.defineProperty(SigningKey, 'getIcapAddress', function(address) {
address = getAddress(address).substring(2);
var base36 = (new utils.BN(address, 16)).toString(36).toUpperCase();
while (base36.length < 30) { base36 = '0' + base36; }
return 'XE' + ibanChecksum('XE00' + base36) + base36;
});
module.exports = SigningKey;

102
lib/utils.js
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@ -213,6 +213,105 @@ function defineProperty(object, name, value) {
});
}
function getChecksumAddress(address) {
if (typeof(address) !== 'string' || !address.match(/^0x[0-9A-Fa-f]{40}$/)) {
throw new Error('invalid address');
}
address = address.substring(2).toLowerCase();
var hashed = sha3(address);
address = address.split('');
for (var i = 0; i < 40; i += 2) {
if ((hashed[i >> 1] >> 4) >= 8) {
address[i] = address[i].toUpperCase();
}
if ((hashed[i >> 1] & 0x0f) >= 8) {
address[i + 1] = address[i + 1].toUpperCase();
}
}
return '0x' + address.join('');
}
function getAddress(address) {
var result = null;
if (typeof(address) !== 'string') { throw new Error('invalid address'); }
if (address.match(/^(0x)?[0-9a-fA-F]{40}$/)) {
// Missing the 0x prefix
if (address.substring(0, 2) !== '0x') { address = '0x' + address; }
result = getChecksumAddress(address);
// It is a checksummed address with a bad checksum
if (address.match(/([A-F].*[a-f])|([a-f].*[A-F])/) && result !== address) {
throw new Error('invalid address checksum');
}
// Maybe ICAP? (we only support direct mode)
} else if (address.match(/^XE[0-9]{2}[0-9A-Za-z]{30,31}$/)) {
// It is an ICAP address with a bad checksum
if (address.substring(2, 4) !== ibanChecksum(address)) {
throw new Error('invalid address icap checksum');
}
result = (new BN(address.substring(4), 36)).toString(16);
while (result.length < 40) { result = '0' + result; }
result = getChecksumAddress('0x' + result);
} else {
throw new Error('invalid address');
}
return result;
}
// See: https://en.wikipedia.org/wiki/International_Bank_Account_Number
var ibanChecksum = (function() {
// Create lookup table
var ibanLookup = {};
for (var i = 0; i < 10; i++) { ibanLookup[String(i)] = String(i); }
for (var i = 0; i < 26; i++) { ibanLookup[String.fromCharCode(65 + i)] = String(10 + i); }
// How many decimal digits can we process? (for 64-bit float, this is 15)
var safeDigits = Math.floor(Math.log10(Number.MAX_SAFE_INTEGER));
return function(address) {
address = address.toUpperCase();
address = address.substring(4) + address.substring(0, 2) + '00';
var expanded = address.split('');
for (var i = 0; i < expanded.length; i++) {
expanded[i] = ibanLookup[expanded[i]];
}
expanded = expanded.join('');
// Javascript can handle integers safely up to 15 (decimal) digits
while (expanded.length >= safeDigits){
var block = expanded.substring(0, safeDigits);
expanded = parseInt(block, 10) % 97 + expanded.substring(block.length);
}
var checksum = String(98 - (parseInt(expanded, 10) % 97));
while (checksum.length < 2) { checksum = '0' + checksum; }
return checksum;
};
})();
function getIcapAddress(address) {
address = getAddress(address).substring(2);
var base36 = (new BN(address, 16)).toString(36).toUpperCase();
while (base36.length < 30) { base36 = '0' + base36; }
return 'XE' + ibanChecksum('XE00' + base36) + base36;
}
function cloneObject(object) {
var clone = {};
for (var key in object) { clone[key] = object[key]; }
@ -275,6 +374,9 @@ module.exports = {
defineProperty: defineProperty,
getAddress: getAddress,
getIcapAddress: getIcapAddress,
cloneObject: cloneObject,
bnToBuffer: bnToBuffer,

6
lib/wallet.js
View File

@ -205,7 +205,7 @@ utils.defineProperty(Wallet.prototype, 'sendTransaction', function(transaction)
});
utils.defineProperty(Wallet.prototype, 'send', function(address, amountWei, options) {
address = SigningKey.getAddress(address);
address = utils.getAddress(address);
if (utils.BN.isBN(amountWei)) {
amountWei = '0x' + utils.bnToBuffer(amountWei).toString('hex');
}
@ -226,10 +226,6 @@ utils.defineProperty(Wallet.prototype, 'getContract', function(address, abi) {
return new Contract(this, address, new Contract.Interface(abi));
});
utils.defineProperty(Wallet, 'getAddress', SigningKey.getAddress);
utils.defineProperty(Wallet, 'getIcapAddress', SigningKey.getIcapAddress);
utils.defineProperty(Wallet, '_Contract', Contract);
module.exports = Wallet;