"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.joinSignature = exports.splitSignature = exports.hexZeroPad = exports.hexStripZeros = exports.hexValue = exports.hexConcat = exports.hexDataSlice = exports.hexDataLength = exports.hexlify = exports.isHexString = exports.zeroPad = exports.stripZeros = exports.concat = exports.arrayify = exports.isBytes = exports.isBytesLike = void 0; var logger_1 = require("@ethersproject/logger"); var _version_1 = require("./_version"); var logger = new logger_1.Logger(_version_1.version); /////////////////////////////// function isHexable(value) { return !!(value.toHexString); } function addSlice(array) { if (array.slice) { return array; } array.slice = function () { var args = Array.prototype.slice.call(arguments); return addSlice(new Uint8Array(Array.prototype.slice.apply(array, args))); }; return array; } function isBytesLike(value) { return ((isHexString(value) && !(value.length % 2)) || isBytes(value)); } exports.isBytesLike = isBytesLike; function isInteger(value) { return (typeof (value) === "number" && value == value && (value % 1) === 0); } function isBytes(value) { if (value == null) { return false; } if (value.constructor === Uint8Array) { return true; } if (typeof (value) === "string") { return false; } if (!isInteger(value.length) || value.length < 0) { return false; } for (var i = 0; i < value.length; i++) { var v = value[i]; if (!isInteger(v) || v < 0 || v >= 256) { return false; } } return true; } exports.isBytes = isBytes; function arrayify(value, options) { if (!options) { options = {}; } if (typeof (value) === "number") { logger.checkSafeUint53(value, "invalid arrayify value"); var result = []; while (value) { result.unshift(value & 0xff); value = parseInt(String(value / 256)); } if (result.length === 0) { result.push(0); } return addSlice(new Uint8Array(result)); } if (options.allowMissingPrefix && typeof (value) === "string" && value.substring(0, 2) !== "0x") { value = "0x" + value; } if (isHexable(value)) { value = value.toHexString(); } if (isHexString(value)) { var hex = value.substring(2); if (hex.length % 2) { if (options.hexPad === "left") { hex = "0" + hex; } else if (options.hexPad === "right") { hex += "0"; } else { logger.throwArgumentError("hex data is odd-length", "value", value); } } var result = []; for (var i = 0; i < hex.length; i += 2) { result.push(parseInt(hex.substring(i, i + 2), 16)); } return addSlice(new Uint8Array(result)); } if (isBytes(value)) { return addSlice(new Uint8Array(value)); } return logger.throwArgumentError("invalid arrayify value", "value", value); } exports.arrayify = arrayify; function concat(items) { var objects = items.map(function (item) { return arrayify(item); }); var length = objects.reduce(function (accum, item) { return (accum + item.length); }, 0); var result = new Uint8Array(length); objects.reduce(function (offset, object) { result.set(object, offset); return offset + object.length; }, 0); return addSlice(result); } exports.concat = concat; function stripZeros(value) { var result = arrayify(value); if (result.length === 0) { return result; } // Find the first non-zero entry var start = 0; while (start < result.length && result[start] === 0) { start++; } // If we started with zeros, strip them if (start) { result = result.slice(start); } return result; } exports.stripZeros = stripZeros; function zeroPad(value, length) { value = arrayify(value); if (value.length > length) { logger.throwArgumentError("value out of range", "value", arguments[0]); } var result = new Uint8Array(length); result.set(value, length - value.length); return addSlice(result); } exports.zeroPad = zeroPad; function isHexString(value, length) { if (typeof (value) !== "string" || !value.match(/^0x[0-9A-Fa-f]*$/)) { return false; } if (length && value.length !== 2 + 2 * length) { return false; } return true; } exports.isHexString = isHexString; var HexCharacters = "0123456789abcdef"; function hexlify(value, options) { if (!options) { options = {}; } if (typeof (value) === "number") { logger.checkSafeUint53(value, "invalid hexlify value"); var hex = ""; while (value) { hex = HexCharacters[value & 0xf] + hex; value = Math.floor(value / 16); } if (hex.length) { if (hex.length % 2) { hex = "0" + hex; } return "0x" + hex; } return "0x00"; } if (typeof (value) === "bigint") { value = value.toString(16); if (value.length % 2) { return ("0x0" + value); } return "0x" + value; } if (options.allowMissingPrefix && typeof (value) === "string" && value.substring(0, 2) !== "0x") { value = "0x" + value; } if (isHexable(value)) { return value.toHexString(); } if (isHexString(value)) { if (value.length % 2) { if (options.hexPad === "left") { value = "0x0" + value.substring(2); } else if (options.hexPad === "right") { value += "0"; } else { logger.throwArgumentError("hex data is odd-length", "value", value); } } return value.toLowerCase(); } if (isBytes(value)) { var result = "0x"; for (var i = 0; i < value.length; i++) { var v = value[i]; result += HexCharacters[(v & 0xf0) >> 4] + HexCharacters[v & 0x0f]; } return result; } return logger.throwArgumentError("invalid hexlify value", "value", value); } exports.hexlify = hexlify; /* function unoddify(value: BytesLike | Hexable | number): BytesLike | Hexable | number { if (typeof(value) === "string" && value.length % 2 && value.substring(0, 2) === "0x") { return "0x0" + value.substring(2); } return value; } */ function hexDataLength(data) { if (typeof (data) !== "string") { data = hexlify(data); } else if (!isHexString(data) || (data.length % 2)) { return null; } return (data.length - 2) / 2; } exports.hexDataLength = hexDataLength; function hexDataSlice(data, offset, endOffset) { if (typeof (data) !== "string") { data = hexlify(data); } else if (!isHexString(data) || (data.length % 2)) { logger.throwArgumentError("invalid hexData", "value", data); } offset = 2 + 2 * offset; if (endOffset != null) { return "0x" + data.substring(offset, 2 + 2 * endOffset); } return "0x" + data.substring(offset); } exports.hexDataSlice = hexDataSlice; function hexConcat(items) { var result = "0x"; items.forEach(function (item) { result += hexlify(item).substring(2); }); return result; } exports.hexConcat = hexConcat; function hexValue(value) { var trimmed = hexStripZeros(hexlify(value, { hexPad: "left" })); if (trimmed === "0x") { return "0x0"; } return trimmed; } exports.hexValue = hexValue; function hexStripZeros(value) { if (typeof (value) !== "string") { value = hexlify(value); } if (!isHexString(value)) { logger.throwArgumentError("invalid hex string", "value", value); } value = value.substring(2); var offset = 0; while (offset < value.length && value[offset] === "0") { offset++; } return "0x" + value.substring(offset); } exports.hexStripZeros = hexStripZeros; function hexZeroPad(value, length) { if (typeof (value) !== "string") { value = hexlify(value); } else if (!isHexString(value)) { logger.throwArgumentError("invalid hex string", "value", value); } if (value.length > 2 * length + 2) { logger.throwArgumentError("value out of range", "value", arguments[1]); } while (value.length < 2 * length + 2) { value = "0x0" + value.substring(2); } return value; } exports.hexZeroPad = hexZeroPad; function splitSignature(signature) { var result = { r: "0x", s: "0x", _vs: "0x", recoveryParam: 0, v: 0, yParityAndS: "0x", compact: "0x" }; if (isBytesLike(signature)) { var bytes = arrayify(signature); // Get the r, s and v if (bytes.length === 64) { // EIP-2098; pull the v from the top bit of s and clear it result.v = 27 + (bytes[32] >> 7); bytes[32] &= 0x7f; result.r = hexlify(bytes.slice(0, 32)); result.s = hexlify(bytes.slice(32, 64)); } else if (bytes.length === 65) { result.r = hexlify(bytes.slice(0, 32)); result.s = hexlify(bytes.slice(32, 64)); result.v = bytes[64]; } else { logger.throwArgumentError("invalid signature string", "signature", signature); } // Allow a recid to be used as the v if (result.v < 27) { if (result.v === 0 || result.v === 1) { result.v += 27; } else { logger.throwArgumentError("signature invalid v byte", "signature", signature); } } // Compute recoveryParam from v result.recoveryParam = 1 - (result.v % 2); // Compute _vs from recoveryParam and s if (result.recoveryParam) { bytes[32] |= 0x80; } result._vs = hexlify(bytes.slice(32, 64)); } else { result.r = signature.r; result.s = signature.s; result.v = signature.v; result.recoveryParam = signature.recoveryParam; result._vs = signature._vs; // If the _vs is available, use it to populate missing s, v and recoveryParam // and verify non-missing s, v and recoveryParam if (result._vs != null) { var vs_1 = zeroPad(arrayify(result._vs), 32); result._vs = hexlify(vs_1); // Set or check the recid var recoveryParam = ((vs_1[0] >= 128) ? 1 : 0); if (result.recoveryParam == null) { result.recoveryParam = recoveryParam; } else if (result.recoveryParam !== recoveryParam) { logger.throwArgumentError("signature recoveryParam mismatch _vs", "signature", signature); } // Set or check the s vs_1[0] &= 0x7f; var s = hexlify(vs_1); if (result.s == null) { result.s = s; } else if (result.s !== s) { logger.throwArgumentError("signature v mismatch _vs", "signature", signature); } } // Use recid and v to populate each other if (result.recoveryParam == null) { if (result.v == null) { logger.throwArgumentError("signature missing v and recoveryParam", "signature", signature); } else if (result.v === 0 || result.v === 1) { result.recoveryParam = result.v; } else { result.recoveryParam = 1 - (result.v % 2); } } else { if (result.v == null) { result.v = 27 + result.recoveryParam; } else { var recId = (result.v === 0 || result.v === 1) ? result.v : (1 - (result.v % 2)); if (result.recoveryParam !== recId) { logger.throwArgumentError("signature recoveryParam mismatch v", "signature", signature); } } } if (result.r == null || !isHexString(result.r)) { logger.throwArgumentError("signature missing or invalid r", "signature", signature); } else { result.r = hexZeroPad(result.r, 32); } if (result.s == null || !isHexString(result.s)) { logger.throwArgumentError("signature missing or invalid s", "signature", signature); } else { result.s = hexZeroPad(result.s, 32); } var vs = arrayify(result.s); if (vs[0] >= 128) { logger.throwArgumentError("signature s out of range", "signature", signature); } if (result.recoveryParam) { vs[0] |= 0x80; } var _vs = hexlify(vs); if (result._vs) { if (!isHexString(result._vs)) { logger.throwArgumentError("signature invalid _vs", "signature", signature); } result._vs = hexZeroPad(result._vs, 32); } // Set or check the _vs if (result._vs == null) { result._vs = _vs; } else if (result._vs !== _vs) { logger.throwArgumentError("signature _vs mismatch v and s", "signature", signature); } } result.yParityAndS = result._vs; result.compact = result.r + result.yParityAndS.substring(2); return result; } exports.splitSignature = splitSignature; function joinSignature(signature) { signature = splitSignature(signature); return hexlify(concat([ signature.r, signature.s, (signature.recoveryParam ? "0x1c" : "0x1b") ])); } exports.joinSignature = joinSignature; //# sourceMappingURL=index.js.map