87 lines
2.9 KiB
JavaScript
87 lines
2.9 KiB
JavaScript
import { constants } from "./constants";
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let errorMsgNoMetamaskAccount = `You haven't chosen any account in MetaMask.
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Please choose your initial key in MetaMask and reload the page.
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Check POA Network <a href='https://github.com/poanetwork/wiki' target='blank'>wiki</a> for more info.`;
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function generateElement(msg) {
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let errorNode = document.createElement("div");
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errorNode.innerHTML = `<div style="line-height: 1.6;">
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${msg}
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</div>`;
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return errorNode;
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}
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let getWeb3 = () => {
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return new Promise(function(resolve, reject) {
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// Wait for loading completion to avoid race conditions with web3 injection timing.
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window.addEventListener("load", function() {
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var results;
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var web3 = window.web3;
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// Checking if Web3 has been injected by the browser (Mist/MetaMask)
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if (typeof web3 !== "undefined") {
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// Use Mist/MetaMask's provider.
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var errorMsg = null;
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web3 = new window.Web3(web3.currentProvider);
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web3.version.getNetwork((err, netId) => {
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let netIdName;
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switch (netId) {
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case constants.NETID_SOKOL:
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netIdName = "Sokol";
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console.log("This is sokol");
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break;
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case constants.NETID_DAI_TEST:
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netIdName = "Dai-Test";
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console.log("This is Dai-Test");
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break;
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case constants.NETID_CORE:
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netIdName = "Core";
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console.log("This is Core");
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break;
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case constants.NETID_DAI:
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netIdName = "Dai";
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console.log("This is Dai");
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break;
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default:
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netIdName = "Unknown";
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errorMsg = `You aren't connected to POA Network.
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Please switch on Metamask and refresh the page.
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Check POA Network <a href='https://github.com/poanetwork/wiki' target='blank'>wiki</a> for more info.
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<b>Current Network ID</b> is <i>${netId}</i>`;
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console.log("This is an unknown network.", netId);
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}
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results = {
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web3Instance: web3,
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netIdName,
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netId,
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injectedWeb3: true
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};
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document.title = `${netIdName} - Dapp Keys Generation`;
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var defaultAccount = web3.eth.defaultAccount || null;
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if (defaultAccount === null) {
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reject({
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msg: errorMsgNoMetamaskAccount,
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node: generateElement(errorMsgNoMetamaskAccount)
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});
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}
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if (errorMsg !== null) {
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reject({ msg: errorMsg, node: generateElement(errorMsg) });
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}
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resolve(results);
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});
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console.log("Injected web3 detected.");
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} else {
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reject({
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msg: errorMsgNoMetamaskAccount,
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node: generateElement(errorMsgNoMetamaskAccount)
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});
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console.error("Metamask not found");
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}
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});
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});
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};
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export default getWeb3;
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