First commit

sso-demo/models/user.js

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+// In-memory user store for demonstration purposes
+// In a real application, this would be a database model (e.g., Sequelize, Mongoose)
+
+const users = [];
+let nextId = 1;
+
+/**
+ * Finds a user by their SSO subject ID.
+ * @param {string} ssoSub - The SSO subject ID.
+ * @returns {Promise<object|null>} The user object or null if not found.
+ */
+async function findBySsoSub(ssoSub) {
+    return users.find(user => user.sso_sub === ssoSub) || null;
+}
+
+/**
+ * Finds a user by their internal ID.
+ * @param {number} id - The user's internal ID.
+ * @returns {Promise<object|null>} The user object or null if not found.
+ */
+async function findById(id) {
+    return users.find(user => user.id === id) || null;
+}
+
+/**
+ * Creates a new user.
+ * @param {object} userData - The user data.
+ * @param {string} userData.sso_sub - The SSO subject ID.
+ * @returns {Promise<object>} The newly created user object.
+ */
+async function createUser({ sso_sub }) {
+    const newUser = {
+        id: nextId++,
+        sso_sub: sso_sub,
+        // In a real app, you might get a username/email from the JWT or prompt the user
+        username: `user_${sso_sub.substring(0, 5)}` 
+    };
+    users.push(newUser);
+    return newUser;
+}
+
+module.exports = {
+    findBySsoSub,
+    findById,
+    createUser
+};