From 03a564dcf4c26aa37f64319b55e3fdd23ad1c2d9 Mon Sep 17 00:00:00 2001
From: Midhun Suresh <midhunr@element.io>
Date: Fri, 31 Dec 2021 12:58:11 +0530
Subject: [PATCH] Implement loading existing session
---
src/Hydrogen.ts | 14 ++++++++++++++
src/main.ts | 25 +++++++++++++++++--------
2 files changed, 31 insertions(+), 8 deletions(-)
diff --git a/src/Hydrogen.ts b/src/Hydrogen.ts
index 697fcfe..d597955 100644
--- a/src/Hydrogen.ts
+++ b/src/Hydrogen.ts
@@ -60,6 +60,20 @@ export class Hydrogen {
this._container.appendChild(view.mount());
}
+ /**
+ * Try to start Hydrogen based on an existing hydrogen session.
+ * If multiple sessions exist, this method chooses the most recent one.
+ */
+ async attemptStartWithExistingSession(): Promise<boolean> {
+ const sessionIds = await this._platform.sessionInfoStorage.getAll();
+ const { id } = sessionIds.pop();
+ if (id) {
+ await this._client.startWithExistingSession(id);
+ return true;
+ }
+ return false;
+ }
+
private async _joinRoom(roomId: string): Promise<any> {
await this._session.joinRoom(roomId);
// even though we've joined the room, we need to wait till the next sync for the actual room
diff --git a/src/main.ts b/src/main.ts
index 08b8d87..35cc726 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -20,14 +20,23 @@ async function main() {
const root = document.querySelector("#chatterbox") as HTMLDivElement;
const { homeserver, auto_join_room } = await fetchConfig();
const hydrogen = new Hydrogen(homeserver, root);
- const username = generateRandomString(7);
- const password = generateRandomString(10);
- console.log(`Attempting to register with username = ${username} and password = ${password}`);
- await hydrogen.register(username, password, "Chatterbox");
- console.log("Registration done");
- console.log("Attempting to login with same credentials");
- await hydrogen.login(username, password);
- console.log("Login successful");
+ console.log("Checking if session already exists");
+ const sessionAlreadyExists = await hydrogen.attemptStartWithExistingSession();
+ if (sessionAlreadyExists) {
+ console.log("Starting Hydrogen with existing session");
+ }
+ else {
+ console.log("Session does not exist!");
+ const username = generateRandomString(7);
+ const password = generateRandomString(10);
+ console.log(`Attempting to register with username = ${username} and password = ${password}`);
+ await hydrogen.register(username, password, "Chatterbox");
+ console.log("Registration done");
+ console.log("Attempting to login with same credentials");
+ await hydrogen.login(username, password);
+ console.log("Login successful");
+ }
+
console.log("Attempting to mount Timeline");
await hydrogen.showRoom(auto_join_room);
console.log("Mounted Timeline");
--
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