115 lines
4 KiB
JavaScript
115 lines
4 KiB
JavaScript
let gun = Gun(['http://nodemixaholic.com:8069/gun', 'https://gun-manhattan.herokuapp.com/gun']);
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let usrname;
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function showMainPage() {
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body.innerHTML = `<img class="logo" src="maya.jpg">
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<h1>MayaSpace</h1><hr><br>
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<div class="container" id="poster">
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<input type="text" placeholder="Type a post here..." name="post" id="post" required>
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<button onclick="post()">Post</button>
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</div>
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<div class="container" id="postContainer">
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<hr>
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Copyright Samuel Lord. All rights reserved.
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</div>
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`;
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let postContainer = document.getElementById("postContainer");
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const coredb = gun.get(`mayaspace`);
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const postsDB = coredb.get('posts');
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// Use on() to continuously listen for changes
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postsDB.on((data) => {
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addPost(data);
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});
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}
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async function sha256HexPromise(data) {
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const msgUint8 = new TextEncoder().encode(data); // encode as (utf-8) Uint8Array
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const hashBuffer = await crypto.subtle.digest("SHA-256", msgUint8); // hash the message
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const hashArray = Array.from(new Uint8Array(hashBuffer)); // convert buffer to byte array
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const hashHex = hashArray
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.map((b) => b.toString(16).padStart(2, "0"))
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.join(""); // convert bytes to hex string
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return hashHex;
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}
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async function sha256HexPromise(data) {
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const msgUint8 = new TextEncoder().encode(data); // encode as (utf-8) Uint8Array
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const hashBuffer = await crypto.subtle.digest("SHA-256", msgUint8); // hash the message
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const hashArray = Array.from(new Uint8Array(hashBuffer)); // convert buffer to byte array
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const hashHex = hashArray
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.map((b) => b.toString(16).padStart(2, "0"))
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.join(""); // convert bytes to hex string
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return hashHex;
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}
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function login() {
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let password = document.getElementById("password").value;
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const coredb = gun.get(`mayaspace`);
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// Perform the SHA-256 hashing asynchronously
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sha256HexPromise(password)
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.then(function (encryptedPassword) {
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usrname = `${document.getElementById("uname").value}@${window.location.hostname}`;
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return encryptedPassword;
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})
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.then(function (encryptedPassword) {
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// Access the user reference and check the stored password
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let userRef = coredb.get('users').get(usrname);
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let storedPassword = coredb.get('users').get(usrname).get("passwd");
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storedPassword.once((storedData) => {
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if (storedData === undefined || storedData === null || storedData === "") {
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storedPassword.put(`${encryptedPassword}`);
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showMainPage();
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console.log("registering and logging in....");
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} else if (storedData === encryptedPassword) {
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showMainPage();
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console.log("welcome back!");
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} else {
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alert("Incorrect Password");
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}
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});
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})
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.catch(function (error) {
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console.error('Error in sha256HexPromise:', error);
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// Handle the error appropriately
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});
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}
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function trimStringToChars(inputString, maxLength) {
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if (inputString.length > maxLength + 1) {
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return inputString.substring(0, maxLength) + '...';
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} else {
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return inputString;
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}
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}
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function addPost(data) {
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let postContainer = document.getElementById("postContainer");
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let postElement = document.createElement('div');
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postElement.textContent = filterXSS(trimStringToChars(data, 1000));
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postContainer.appendChild(postElement);
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postContainer.appendChild(document.createElement('br'));
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}
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function post() {
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let post = `${filterXSS(document.getElementById("post").value)}`;
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let postData = `[${usrname}]: ${post}`;
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const coredb = gun.get(`mayaspace`);
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const postsDB = coredb.get('posts');
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if (post.length < 1001) {
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postsDB.put(postData);
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} else {
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alert("max post length is 1000 chars!")
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}
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console.log("USER: " + usrname);
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}
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function logout() {
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document.location.href = "index.html";
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}
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console.log("loaded");
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