From 3130f07929d0d2080da391e6cc63432f62a1c5fe Mon Sep 17 00:00:00 2001
From: Adeel Ahmad <adeah090@student.liu.se>
Date: Sun, 26 Feb 2023 13:11:22 +0000
Subject: [PATCH] Upload serverstub.js
---
serverstub.js | 201 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 201 insertions(+)
create mode 100644 serverstub.js
diff --git a/serverstub.js b/serverstub.js
new file mode 100644
index 0000000..c2cc1fb
--- /dev/null
+++ b/serverstub.js
@@ -0,0 +1,201 @@
+/**
+ * Serverstub.js
+ *
+ * Simple dummy server for TDDD97
+ *
+ * If you're a student, you shouldn't need to look through this file,
+ * the description of how it works is in the lab instructions.
+ **/
+var serverstub = (function () {
+ "use strict";
+
+ var users;
+ var loggedInUsers;
+
+ var syncStorage = function () {
+ if (localStorage.getItem("users") === null) {
+ users = {};
+ } else {
+ users = JSON.parse(localStorage.getItem("users"));
+ }
+
+ if (localStorage.getItem("loggedinusers") === null) {
+ loggedInUsers = {};
+ } else {
+ loggedInUsers = JSON.parse(localStorage.getItem("loggedinusers"));
+ }
+ };
+
+ var persistUsers = function () {
+ localStorage.setItem("users", JSON.stringify(users));
+ };
+ var persistLoggedInUsers = function () {
+ localStorage.setItem("loggedinusers", JSON.stringify(loggedInUsers));
+ };
+ var tokenToEmail = function (token) {
+ return loggedInUsers[token];
+ };
+ var copyUser = function (user) {
+ return JSON.parse(JSON.stringify(user));
+ };
+
+ var serverstub = {
+ signIn: function (email, password) {
+ syncStorage();
+ if (users[email] != null && users[email].password == password) {
+ var letters =
+ "abcdefghiklmnopqrstuvwwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
+ var token = "";
+ for (var i = 0; i < 36; ++i) {
+ token += letters[Math.floor(Math.random() * letters.length)];
+ }
+ loggedInUsers[token] = email;
+ persistLoggedInUsers();
+ return {
+ success: true,
+ message: "Successfully signed in.",
+ data: token,
+ };
+ } else {
+ return { success: false, message: "Wrong username or password." };
+ }
+ },
+
+ postMessage: function (token, content, toEmail) {
+ syncStorage();
+ var fromEmail = tokenToEmail(token);
+ if (fromEmail != null) {
+ if (toEmail == null) {
+ toEmail = fromEmail;
+ }
+ if (users[toEmail] != null) {
+ var recipient = users[toEmail];
+ var message = { writer: fromEmail, content: content };
+ recipient.messages.unshift(message);
+ persistUsers();
+ return { success: true, message: "Message posted" };
+ } else {
+ return { success: false, message: "No such user." };
+ }
+ } else {
+ return { success: false, message: "You are not signed in." };
+ }
+ },
+
+ getUserDataByToken: function (token) {
+ syncStorage();
+ var email = tokenToEmail(token);
+ return serverstub.getUserDataByEmail(token, email);
+ },
+
+ getUserDataByEmail: function (token, email) {
+ syncStorage();
+ if (loggedInUsers[token] != null) {
+ if (users[email] != null) {
+ var match = copyUser(users[email]);
+ delete match.messages;
+ delete match.password;
+ return {
+ success: true,
+ message: "User data retrieved.",
+ data: match,
+ };
+ } else {
+ return { success: false, message: "No such user." };
+ }
+ } else {
+ return { success: false, message: "You are not signed in." };
+ }
+ },
+
+ getUserMessagesByToken: function (token) {
+ syncStorage();
+ var email = tokenToEmail(token);
+ return serverstub.getUserMessagesByEmail(token, email);
+ },
+
+ getUserMessagesByEmail: function (token, email) {
+ syncStorage();
+ if (loggedInUsers[token] != null) {
+ if (users[email] != null) {
+ var match = copyUser(users[email]).messages;
+ return {
+ success: true,
+ message: "User messages retrieved.",
+ data: match,
+ };
+ } else {
+ return { success: false, message: "No such user." };
+ }
+ } else {
+ return { success: false, message: "You are not signed in." };
+ }
+ },
+
+ signOut: function (token) {
+ syncStorage();
+ if (loggedInUsers[token] != null) {
+ delete loggedInUsers[token];
+ persistLoggedInUsers();
+ return { success: true, message: "Successfully signed out." };
+ } else {
+ return { success: false, message: "You are not signed in." };
+ }
+ },
+
+ signUp: function (inputObject) {
+ // {email, password, firstname, familyname, gender, city, country}
+ syncStorage();
+ if (users[inputObject.email] === undefined) {
+ if (
+ typeof inputObject.email === "string" &&
+ typeof inputObject.password === "string" &&
+ typeof inputObject.firstname === "string" &&
+ typeof inputObject.familyname === "string" &&
+ typeof inputObject.gender === "string" &&
+ typeof inputObject.city === "string" &&
+ typeof inputObject.country === "string"
+ ) {
+ var user = {
+ email: inputObject.email,
+ password: inputObject.password,
+ firstname: inputObject.firstname,
+ familyname: inputObject.familyname,
+ gender: inputObject.gender,
+ city: inputObject.city,
+ country: inputObject.country,
+ messages: [],
+ };
+ users[inputObject.email] = user;
+ persistUsers();
+ return { success: true, message: "Successfully created a new user." };
+ } else {
+ return {
+ success: false,
+ message: "Form data missing or incorrect type.",
+ };
+ }
+ } else {
+ return { success: false, message: "User already exists." };
+ }
+ },
+
+ changePassword: function (token, oldPassword, newPassword) {
+ syncStorage();
+ if (loggedInUsers[token] != null) {
+ var email = tokenToEmail(token);
+ if (users[email].password == oldPassword) {
+ users[email].password = newPassword;
+ persistUsers();
+ return { success: true, message: "Password changed." };
+ } else {
+ return { success: false, message: "Wrong password." };
+ }
+ } else {
+ return { success: false, message: "You are not logged in." };
+ }
+ },
+ };
+
+ return serverstub;
+})();
--
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