eosjs/dist/eosjs-numeric.js

"use strict";
var __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from) {
    for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)
        to[j] = from[i];
    return to;
};
var __values = (this && this.__values) || function(o) {
    var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
    if (m) return m.call(o);
    if (o && typeof o.length === "number") return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
    throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.signatureToString = exports.stringToSignature = exports.privateKeyToString = exports.privateKeyToLegacyString = exports.stringToPrivateKey = exports.convertLegacyPublicKeys = exports.convertLegacyPublicKey = exports.publicKeyToString = exports.publicKeyToLegacyString = exports.stringToPublicKey = exports.signatureDataSize = exports.privateKeyDataSize = exports.publicKeyDataSize = exports.KeyType = exports.base64ToBinary = exports.binaryToBase58 = exports.base58ToBinary = exports.signedBinaryToDecimal = exports.binaryToDecimal = exports.signedDecimalToBinary = exports.decimalToBinary = exports.negate = exports.isNegative = void 0;
/**
 * @module Numeric
 */
var hash_js_1 = require("hash.js");
// copyright defined in eosjs/LICENSE.txt
var ripemd160 = require('./ripemd').RIPEMD160.hash;
var base58Chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz';
var base64Chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
var create_base58_map = function () {
    var base58M = Array(256).fill(-1);
    for (var i = 0; i < base58Chars.length; ++i) {
        base58M[base58Chars.charCodeAt(i)] = i;
    }
    return base58M;
};
var base58Map = create_base58_map();
var create_base64_map = function () {
    var base64M = Array(256).fill(-1);
    for (var i = 0; i < base64Chars.length; ++i) {
        base64M[base64Chars.charCodeAt(i)] = i;
    }
    base64M['='.charCodeAt(0)] = 0;
    return base64M;
};
var base64Map = create_base64_map();
/** Is `bignum` a negative number? */
var isNegative = function (bignum) {
    return (bignum[bignum.length - 1] & 0x80) !== 0;
};
exports.isNegative = isNegative;
/** Negate `bignum` */
var negate = function (bignum) {
    var carry = 1;
    for (var i = 0; i < bignum.length; ++i) {
        var x = (~bignum[i] & 0xff) + carry;
        bignum[i] = x;
        carry = x >> 8;
    }
};
exports.negate = negate;
/**
 * Convert an unsigned decimal number in `s` to a bignum
 *
 * @param size bignum size (bytes)
 */
var decimalToBinary = function (size, s) {
    var result = new Uint8Array(size);
    for (var i = 0; i < s.length; ++i) {
        var srcDigit = s.charCodeAt(i);
        if (srcDigit < '0'.charCodeAt(0) || srcDigit > '9'.charCodeAt(0)) {
            throw new Error('invalid number');
        }
        var carry = srcDigit - '0'.charCodeAt(0);
        for (var j = 0; j < size; ++j) {
            var x = result[j] * 10 + carry;
            result[j] = x;
            carry = x >> 8;
        }
        if (carry) {
            throw new Error('number is out of range');
        }
    }
    return result;
};
exports.decimalToBinary = decimalToBinary;
/**
 * Convert a signed decimal number in `s` to a bignum
 *
 * @param size bignum size (bytes)
 */
var signedDecimalToBinary = function (size, s) {
    var negative = s[0] === '-';
    if (negative) {
        s = s.substr(1);
    }
    var result = exports.decimalToBinary(size, s);
    if (negative) {
        exports.negate(result);
        if (!exports.isNegative(result)) {
            throw new Error('number is out of range');
        }
    }
    else if (exports.isNegative(result)) {
        throw new Error('number is out of range');
    }
    return result;
};
exports.signedDecimalToBinary = signedDecimalToBinary;
/**
 * Convert `bignum` to an unsigned decimal number
 *
 * @param minDigits 0-pad result to this many digits
 */
var binaryToDecimal = function (bignum, minDigits) {
    if (minDigits === void 0) { minDigits = 1; }
    var result = Array(minDigits).fill('0'.charCodeAt(0));
    for (var i = bignum.length - 1; i >= 0; --i) {
        var carry = bignum[i];
        for (var j = 0; j < result.length; ++j) {
            var x = ((result[j] - '0'.charCodeAt(0)) << 8) + carry;
            result[j] = '0'.charCodeAt(0) + x % 10;
            carry = (x / 10) | 0;
        }
        while (carry) {
            result.push('0'.charCodeAt(0) + carry % 10);
            carry = (carry / 10) | 0;
        }
    }
    result.reverse();
    return String.fromCharCode.apply(String, __spreadArray([], __read(result)));
};
exports.binaryToDecimal = binaryToDecimal;
/**
 * Convert `bignum` to a signed decimal number
 *
 * @param minDigits 0-pad result to this many digits
 */
var signedBinaryToDecimal = function (bignum, minDigits) {
    if (minDigits === void 0) { minDigits = 1; }
    if (exports.isNegative(bignum)) {
        var x = bignum.slice();
        exports.negate(x);
        return '-' + exports.binaryToDecimal(x, minDigits);
    }
    return exports.binaryToDecimal(bignum, minDigits);
};
exports.signedBinaryToDecimal = signedBinaryToDecimal;
var base58ToBinaryVarSize = function (s) {
    var e_1, _a;
    var result = [];
    for (var i = 0; i < s.length; ++i) {
        var carry = base58Map[s.charCodeAt(i)];
        if (carry < 0) {
            throw new Error('invalid base-58 value');
        }
        for (var j = 0; j < result.length; ++j) {
            var x = result[j] * 58 + carry;
            result[j] = x & 0xff;
            carry = x >> 8;
        }
        if (carry) {
            result.push(carry);
        }
    }
    try {
        for (var s_1 = __values(s), s_1_1 = s_1.next(); !s_1_1.done; s_1_1 = s_1.next()) {
            var ch = s_1_1.value;
            if (ch === '1') {
                result.push(0);
            }
            else {
                break;
            }
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (s_1_1 && !s_1_1.done && (_a = s_1.return)) _a.call(s_1);
        }
        finally { if (e_1) throw e_1.error; }
    }
    result.reverse();
    return new Uint8Array(result);
};
/**
 * Convert an unsigned base-58 number in `s` to a bignum
 *
 * @param size bignum size (bytes)
 */
var base58ToBinary = function (size, s) {
    if (!size) {
        return base58ToBinaryVarSize(s);
    }
    var result = new Uint8Array(size);
    for (var i = 0; i < s.length; ++i) {
        var carry = base58Map[s.charCodeAt(i)];
        if (carry < 0) {
            throw new Error('invalid base-58 value');
        }
        for (var j = 0; j < size; ++j) {
            var x = result[j] * 58 + carry;
            result[j] = x;
            carry = x >> 8;
        }
        if (carry) {
            throw new Error('base-58 value is out of range');
        }
    }
    result.reverse();
    return result;
};
exports.base58ToBinary = base58ToBinary;
/**
 * Convert `bignum` to a base-58 number
 *
 * @param minDigits 0-pad result to this many digits
 */
var binaryToBase58 = function (bignum, minDigits) {
    var e_2, _a, e_3, _b;
    if (minDigits === void 0) { minDigits = 1; }
    var result = [];
    try {
        for (var bignum_1 = __values(bignum), bignum_1_1 = bignum_1.next(); !bignum_1_1.done; bignum_1_1 = bignum_1.next()) {
            var byte = bignum_1_1.value;
            var carry = byte;
            for (var j = 0; j < result.length; ++j) {
                var x = (base58Map[result[j]] << 8) + carry;
                result[j] = base58Chars.charCodeAt(x % 58);
                carry = (x / 58) | 0;
            }
            while (carry) {
                result.push(base58Chars.charCodeAt(carry % 58));
                carry = (carry / 58) | 0;
            }
        }
    }
    catch (e_2_1) { e_2 = { error: e_2_1 }; }
    finally {
        try {
            if (bignum_1_1 && !bignum_1_1.done && (_a = bignum_1.return)) _a.call(bignum_1);
        }
        finally { if (e_2) throw e_2.error; }
    }
    try {
        for (var bignum_2 = __values(bignum), bignum_2_1 = bignum_2.next(); !bignum_2_1.done; bignum_2_1 = bignum_2.next()) {
            var byte = bignum_2_1.value;
            if (byte) {
                break;
            }
            else {
                result.push('1'.charCodeAt(0));
            }
        }
    }
    catch (e_3_1) { e_3 = { error: e_3_1 }; }
    finally {
        try {
            if (bignum_2_1 && !bignum_2_1.done && (_b = bignum_2.return)) _b.call(bignum_2);
        }
        finally { if (e_3) throw e_3.error; }
    }
    result.reverse();
    return String.fromCharCode.apply(String, __spreadArray([], __read(result)));
};
exports.binaryToBase58 = binaryToBase58;
/** Convert an unsigned base-64 number in `s` to a bignum */
var base64ToBinary = function (s) {
    var len = s.length;
    if ((len & 3) === 1 && s[len - 1] === '=') {
        len -= 1;
    } // fc appends an extra '='
    if ((len & 3) !== 0) {
        throw new Error('base-64 value is not padded correctly');
    }
    var groups = len >> 2;
    var bytes = groups * 3;
    if (len > 0 && s[len - 1] === '=') {
        if (s[len - 2] === '=') {
            bytes -= 2;
        }
        else {
            bytes -= 1;
        }
    }
    var result = new Uint8Array(bytes);
    for (var group = 0; group < groups; ++group) {
        var digit0 = base64Map[s.charCodeAt(group * 4 + 0)];
        var digit1 = base64Map[s.charCodeAt(group * 4 + 1)];
        var digit2 = base64Map[s.charCodeAt(group * 4 + 2)];
        var digit3 = base64Map[s.charCodeAt(group * 4 + 3)];
        result[group * 3 + 0] = (digit0 << 2) | (digit1 >> 4);
        if (group * 3 + 1 < bytes) {
            result[group * 3 + 1] = ((digit1 & 15) << 4) | (digit2 >> 2);
        }
        if (group * 3 + 2 < bytes) {
            result[group * 3 + 2] = ((digit2 & 3) << 6) | digit3;
        }
    }
    return result;
};
exports.base64ToBinary = base64ToBinary;
/** Key types this library supports */
var KeyType;
(function (KeyType) {
    KeyType[KeyType["k1"] = 0] = "k1";
    KeyType[KeyType["r1"] = 1] = "r1";
    KeyType[KeyType["wa"] = 2] = "wa";
})(KeyType = exports.KeyType || (exports.KeyType = {}));
/** Public key data size, excluding type field */
exports.publicKeyDataSize = 33;
/** Private key data size, excluding type field */
exports.privateKeyDataSize = 32;
/** Signature data size, excluding type field */
exports.signatureDataSize = 65;
var digestSuffixRipemd160 = function (data, suffix) {
    var d = new Uint8Array(data.length + suffix.length);
    for (var i = 0; i < data.length; ++i) {
        d[i] = data[i];
    }
    for (var i = 0; i < suffix.length; ++i) {
        d[data.length + i] = suffix.charCodeAt(i);
    }
    return ripemd160(d);
};
var stringToKey = function (s, type, size, suffix) {
    var whole = exports.base58ToBinary(size ? size + 4 : 0, s);
    var result = { type: type, data: new Uint8Array(whole.buffer, 0, whole.length - 4) };
    var digest = new Uint8Array(digestSuffixRipemd160(result.data, suffix));
    if (digest[0] !== whole[whole.length - 4] || digest[1] !== whole[whole.length - 3]
        || digest[2] !== whole[whole.length - 2] || digest[3] !== whole[whole.length - 1]) {
        throw new Error('checksum doesn\'t match');
    }
    return result;
};
var keyToString = function (key, suffix, prefix) {
    var digest = new Uint8Array(digestSuffixRipemd160(key.data, suffix));
    var whole = new Uint8Array(key.data.length + 4);
    for (var i = 0; i < key.data.length; ++i) {
        whole[i] = key.data[i];
    }
    for (var i = 0; i < 4; ++i) {
        whole[i + key.data.length] = digest[i];
    }
    return prefix + exports.binaryToBase58(whole);
};
/** Convert key in `s` to binary form */
var stringToPublicKey = function (s) {
    if (typeof s !== 'string') {
        throw new Error('expected string containing public key');
    }
    if (s.substr(0, 3) === 'EOS') {
        var whole = exports.base58ToBinary(exports.publicKeyDataSize + 4, s.substr(3));
        var key = { type: KeyType.k1, data: new Uint8Array(exports.publicKeyDataSize) };
        for (var i = 0; i < exports.publicKeyDataSize; ++i) {
            key.data[i] = whole[i];
        }
        var digest = new Uint8Array(ripemd160(key.data));
        if (digest[0] !== whole[exports.publicKeyDataSize] || digest[1] !== whole[34]
            || digest[2] !== whole[35] || digest[3] !== whole[36]) {
            throw new Error('checksum doesn\'t match');
        }
        return key;
    }
    else if (s.substr(0, 7) === 'PUB_K1_') {
        return stringToKey(s.substr(7), KeyType.k1, exports.publicKeyDataSize, 'K1');
    }
    else if (s.substr(0, 7) === 'PUB_R1_') {
        return stringToKey(s.substr(7), KeyType.r1, exports.publicKeyDataSize, 'R1');
    }
    else if (s.substr(0, 7) === 'PUB_WA_') {
        return stringToKey(s.substr(7), KeyType.wa, 0, 'WA');
    }
    else {
        throw new Error('unrecognized public key format');
    }
};
exports.stringToPublicKey = stringToPublicKey;
/** Convert public `key` to legacy string (base-58) form */
var publicKeyToLegacyString = function (key) {
    if (key.type === KeyType.k1 && key.data.length === exports.publicKeyDataSize) {
        return keyToString(key, '', 'EOS');
    }
    else if (key.type === KeyType.r1 || key.type === KeyType.wa) {
        throw new Error('Key format not supported in legacy conversion');
    }
    else {
        throw new Error('unrecognized public key format');
    }
};
exports.publicKeyToLegacyString = publicKeyToLegacyString;
/** Convert `key` to string (base-58) form */
var publicKeyToString = function (key) {
    if (key.type === KeyType.k1 && key.data.length === exports.publicKeyDataSize) {
        return keyToString(key, 'K1', 'PUB_K1_');
    }
    else if (key.type === KeyType.r1 && key.data.length === exports.publicKeyDataSize) {
        return keyToString(key, 'R1', 'PUB_R1_');
    }
    else if (key.type === KeyType.wa) {
        return keyToString(key, 'WA', 'PUB_WA_');
    }
    else {
        throw new Error('unrecognized public key format');
    }
};
exports.publicKeyToString = publicKeyToString;
/** If a key is in the legacy format (`EOS` prefix), then convert it to the new format (`PUB_K1_`).
 * Leaves other formats untouched
 */
var convertLegacyPublicKey = function (s) {
    if (s.substr(0, 3) === 'EOS') {
        return exports.publicKeyToString(exports.stringToPublicKey(s));
    }
    return s;
};
exports.convertLegacyPublicKey = convertLegacyPublicKey;
/** If a key is in the legacy format (`EOS` prefix), then convert it to the new format (`PUB_K1_`).
 * Leaves other formats untouched
 */
var convertLegacyPublicKeys = function (keys) {
    return keys.map(exports.convertLegacyPublicKey);
};
exports.convertLegacyPublicKeys = convertLegacyPublicKeys;
/** Convert key in `s` to binary form */
var stringToPrivateKey = function (s) {
    if (typeof s !== 'string') {
        throw new Error('expected string containing private key');
    }
    if (s.substr(0, 7) === 'PVT_R1_') {
        return stringToKey(s.substr(7), KeyType.r1, exports.privateKeyDataSize, 'R1');
    }
    else if (s.substr(0, 7) === 'PVT_K1_') {
        return stringToKey(s.substr(7), KeyType.k1, exports.privateKeyDataSize, 'K1');
    }
    else {
        // todo: Verify checksum: sha256(sha256(key.data)).
        //       Not critical since a bad key will fail to produce a
        //       valid signature anyway.
        var whole = exports.base58ToBinary(exports.privateKeyDataSize + 5, s);
        var key = { type: KeyType.k1, data: new Uint8Array(exports.privateKeyDataSize) };
        if (whole[0] !== 0x80) {
            throw new Error('unrecognized private key type');
        }
        for (var i = 0; i < exports.privateKeyDataSize; ++i) {
            key.data[i] = whole[i + 1];
        }
        return key;
    }
};
exports.stringToPrivateKey = stringToPrivateKey;
/** Convert private `key` to legacy string (base-58) form */
var privateKeyToLegacyString = function (key) {
    if (key.type === KeyType.k1 && key.data.length === exports.privateKeyDataSize) {
        var whole_1 = [];
        whole_1.push(128);
        key.data.forEach(function (byte) { return whole_1.push(byte); });
        var digest = new Uint8Array(hash_js_1.sha256().update(hash_js_1.sha256().update(whole_1).digest()).digest());
        var result = new Uint8Array(exports.privateKeyDataSize + 5);
        for (var i = 0; i < whole_1.length; i++) {
            result[i] = whole_1[i];
        }
        for (var i = 0; i < 4; i++) {
            result[i + whole_1.length] = digest[i];
        }
        return exports.binaryToBase58(result);
    }
    else if (key.type === KeyType.r1 || key.type === KeyType.wa) {
        throw new Error('Key format not supported in legacy conversion');
    }
    else {
        throw new Error('unrecognized public key format');
    }
};
exports.privateKeyToLegacyString = privateKeyToLegacyString;
/** Convert `key` to string (base-58) form */
var privateKeyToString = function (key) {
    if (key.type === KeyType.r1) {
        return keyToString(key, 'R1', 'PVT_R1_');
    }
    else if (key.type === KeyType.k1) {
        return keyToString(key, 'K1', 'PVT_K1_');
    }
    else {
        throw new Error('unrecognized private key format');
    }
};
exports.privateKeyToString = privateKeyToString;
/** Convert key in `s` to binary form */
var stringToSignature = function (s) {
    if (typeof s !== 'string') {
        throw new Error('expected string containing signature');
    }
    if (s.substr(0, 7) === 'SIG_K1_') {
        return stringToKey(s.substr(7), KeyType.k1, exports.signatureDataSize, 'K1');
    }
    else if (s.substr(0, 7) === 'SIG_R1_') {
        return stringToKey(s.substr(7), KeyType.r1, exports.signatureDataSize, 'R1');
    }
    else if (s.substr(0, 7) === 'SIG_WA_') {
        return stringToKey(s.substr(7), KeyType.wa, 0, 'WA');
    }
    else {
        throw new Error('unrecognized signature format');
    }
};
exports.stringToSignature = stringToSignature;
/** Convert `signature` to string (base-58) form */
var signatureToString = function (signature) {
    if (signature.type === KeyType.k1) {
        return keyToString(signature, 'K1', 'SIG_K1_');
    }
    else if (signature.type === KeyType.r1) {
        return keyToString(signature, 'R1', 'SIG_R1_');
    }
    else if (signature.type === KeyType.wa) {
        return keyToString(signature, 'WA', 'SIG_WA_');
    }
    else {
        throw new Error('unrecognized signature format');
    }
};
exports.signatureToString = signatureToString;
//# sourceMappingURL=eosjs-numeric.js.map