94 lines
3.8 KiB
JavaScript
94 lines
3.8 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.parseTransactionData = exports.parsePersonalSign = exports.isValidAddress = exports.toChecksumAddress = void 0;
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const js_sha3_1 = require("js-sha3");
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const encoding_1 = require("@walletconnect/encoding");
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const encoding_2 = require("./encoding");
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const misc_1 = require("./misc");
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const validators_1 = require("./validators");
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function toChecksumAddress(address) {
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address = (0, encoding_1.removeHexPrefix)(address.toLowerCase());
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const hash = (0, encoding_1.removeHexPrefix)((0, js_sha3_1.keccak_256)((0, encoding_2.convertUtf8ToBuffer)(address)));
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let checksum = "";
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for (let i = 0; i < address.length; i++) {
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if (parseInt(hash[i], 16) > 7) {
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checksum += address[i].toUpperCase();
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}
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else {
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checksum += address[i];
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}
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}
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return (0, encoding_1.addHexPrefix)(checksum);
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}
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exports.toChecksumAddress = toChecksumAddress;
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const isValidAddress = (address) => {
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if (!address) {
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return false;
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}
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else if (address.toLowerCase().substring(0, 2) !== "0x") {
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return false;
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}
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else if (!/^(0x)?[0-9a-f]{40}$/i.test(address)) {
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return false;
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}
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else if (/^(0x)?[0-9a-f]{40}$/.test(address) || /^(0x)?[0-9A-F]{40}$/.test(address)) {
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return true;
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}
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else {
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return address === toChecksumAddress(address);
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}
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};
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exports.isValidAddress = isValidAddress;
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function parsePersonalSign(params) {
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if (!(0, validators_1.isEmptyArray)(params) && !(0, validators_1.isHexString)(params[0])) {
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params[0] = (0, encoding_2.convertUtf8ToHex)(params[0]);
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}
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return params;
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}
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exports.parsePersonalSign = parsePersonalSign;
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function parseTransactionData(txData) {
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if (typeof txData.type !== "undefined" && txData.type !== "0")
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return txData;
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if (typeof txData.from === "undefined" || !(0, exports.isValidAddress)(txData.from)) {
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throw new Error(`Transaction object must include a valid 'from' value.`);
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}
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function parseHexValues(value) {
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let result = value;
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if (typeof value === "number" || (typeof value === "string" && !(0, validators_1.isEmptyString)(value))) {
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if (!(0, validators_1.isHexString)(value)) {
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result = (0, encoding_2.convertNumberToHex)(value);
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}
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else if (typeof value === "string") {
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result = (0, misc_1.sanitizeHex)(value);
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}
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}
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if (typeof result === "string") {
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result = (0, misc_1.removeHexLeadingZeros)(result);
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}
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return result;
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}
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const txDataRPC = {
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from: (0, misc_1.sanitizeHex)(txData.from),
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to: typeof txData.to === "undefined" ? undefined : (0, misc_1.sanitizeHex)(txData.to),
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gasPrice: typeof txData.gasPrice === "undefined" ? "" : parseHexValues(txData.gasPrice),
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gas: typeof txData.gas === "undefined"
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? typeof txData.gasLimit === "undefined"
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? ""
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: parseHexValues(txData.gasLimit)
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: parseHexValues(txData.gas),
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value: typeof txData.value === "undefined" ? "" : parseHexValues(txData.value),
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nonce: typeof txData.nonce === "undefined" ? "" : parseHexValues(txData.nonce),
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data: typeof txData.data === "undefined" ? "" : (0, misc_1.sanitizeHex)(txData.data) || "0x",
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};
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const prunable = ["gasPrice", "gas", "value", "nonce"];
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Object.keys(txDataRPC).forEach((key) => {
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if ((typeof txDataRPC[key] === "undefined" ||
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(typeof txDataRPC[key] === "string" && !txDataRPC[key].trim().length)) &&
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prunable.includes(key)) {
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delete txDataRPC[key];
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}
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});
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return txDataRPC;
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}
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exports.parseTransactionData = parseTransactionData;
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//# sourceMappingURL=ethereum.js.map
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