96 lines
No EOL
2.9 KiB
JavaScript
96 lines
No EOL
2.9 KiB
JavaScript
function loginError(message, code = null) {
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let errorStr;
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if (code) {
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errorStr = `Status code ${code}: ${message}`;
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} else {
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errorStr = message;
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}
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document.getElementById("error-text").textContent = errorStr;
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document.getElementById("login-error").style.display = "block";
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}
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async function generateToken(username, password) {
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const credentials = btoa(`${username} ${password}`);
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let response;
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try {
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response = await fetch("https://account.spfn.net/api/v2/oauth2/generate_token", {
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method: "GET",
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headers: {
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"Authorization": `Basic ${credentials}`,
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}
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})
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} catch (err) {
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loginError(`Internal Server Error: ${err.message}`)
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throw new Error(err);
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}
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if (!response.ok) {
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if (response.status == 400) { // Invalid Login
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loginError("Invalid SFID or Password");
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} else {
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loginError(await response.text(), response.status);
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}
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throw new Error("Network Response was not okay when Generating Token");
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};
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const data = await response.json();
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sessionStorage.setItem("authToken", data["token"])
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const expiry = data["expiry"].slice(0, 19) + "Z"
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sessionStorage.setItem("authExpires", expiry)
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return data["token"];
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}
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async function getToken(username, password) {
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let token = sessionStorage.getItem("authToken");
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let expiryStr = sessionStorage.getItem("authExpires");
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if (expiryStr) { // Expiry exists so token should exist
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let expiry = new Date(expiryStr);
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if (expiry < new Date()) { // Expired token
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token = await generateToken(username, password);
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} else if (!token) { // Expiry Saved but No Token (shouldn't be possible but it'll be caught if it happens)
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token = await generateToken(username, password);
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}
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} else { // Token Never Saved in Session
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token = await generateToken(username, password);
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}
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return token
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}
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document.getElementById("login").addEventListener("submit", async function(event) {
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event.preventDefault();
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document.getElementById("login-error").style.display = "none";
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const username = await document.getElementById("username").value;
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const password = await document.getElementById("password").value;
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let token = await getToken(username, password);
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if (!token) return;
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document.getElementById("password").value = "";
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// Go Back to Origin Page
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const params = new URLSearchParams(window.location.search);
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const redirectURL = params.get("redirect")
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window.location.href = redirectURL;
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})
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window.onload = async function () { // Check if the token expired
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let expiryStr = sessionStorage.getItem("authExpires");
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if (expiryStr) {
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let expiry = new Date(expiryStr);
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if (expiry < new Date()) { // Expired - Tell the user it expired
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loginError("Login Expired - Please Log In Again")
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}
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}
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} |