Renew Session Script Not Working

[amadejvidic]

Describe the bug
I have a problem renewing my developer session. First, let's start with what works:

• Selecting the "Extend Session Time" via the remote on the TV app "Developer Mode"
• Clicking the "Renew session" button under the Info tab in the webOS Dev Manager on MacOS/Windows

In both instances, the "Dev Mode Session" timer on the TV resets automatically, without closing the app, rebooting TV, etc.

What doesn't work

• Sending GET request to the https://developer.lge.com/secure/ResetDevModeSession.dev?sessionToken=xxxxxxxxxx

What happens
The call above gives the following response: {"result":"success","errorCode":"200","errorMsg":"GNL"}

The request can be verified and looks like it did something:
GET https://developer.lge.com/secure/CheckDevModeSession.dev?sessionToken=xxxxxxxxx
RESPONSE: {"result":"success","errorCode":"200","errorMsg":"999:58:40"}

The problem
The timer on the TV does not get updated/refreshed and keeps counting down like nothing happened. No, rebooting the TV does not help.
I'm certain that the "Renew session" button does something different than just sending this GET request to the developer.lge.com. I was trying to inspect the source code but I couldn't find what actually happens since I'm not too familiar with JS and its libraries.

I found this code and came to dead end:

async renewDevMode(): Promise<void> {
    const device = this.device;
    if (!device) return;
    await this.deviceManager.extendDevMode(device);
    await this.loadDevModeInfo(device);
}

async extendDevMode(device: Device): Promise<any> {
    return await this.luna.call(device, 'luna://com.webos.applicationManager/launch', {
        id: 'com.palmdts.devmode',
        subscribe: false,
        params: {extend: true}
    }, true);
}

Please help me understand what this button does so we can find the solution for my automation script.

Additional context

• OS: MacOS, Windows, Linux (for the HTTP requests I used Chrome, Postman, and Curl with the same outcome)
• LG OLED65C21LA
• WebOS: 8.3.0
• OTA ID: HE_DTV_W22O_AFABATPU
• SoC: o22
• NOT Rooted
• WebOS dev manager: Version 1.99.3 (20240522.151732)
• Source of the token is cat /var/luna/preferences/devmode_enabled

[mariotaku]

Hi, the timer on the TV only updates per reboot. And token validity will be checked only on boot. So it's not a problem to see the TV not updating the timer.

[throwaway96]

Is Quick Start+ enabled?

[amadejvidic]

Hi, the timer on the TV only updates per reboot. And token validity will be checked only on boot. So it's not a problem to see the TV not updating the timer.

Please read my bug report again. The timer updates in real-time, a few seconds after a button press in the WebOS Dev Manager, I can record a video if you don't believe me for some reason. And yes, it kicks me out of the Dev Mode after the TV timer expires, no matter the timer on https://developer.lge.com/secure/CheckDevModeSession.dev.

Since you are one of the developers, can you find the source code that does the renewing after pressing the button for me?

Is Quick Start+ enabled?

Yes.

[mariotaku]

When you press the "Renew session" in the app, or "Extend Session Time" on TV, dev mode app does following things:

1. It makes request to the API to reset the timer
2. It updates the timer displayed on the screen.

While for the auto-renew script, it only reset the timer. If your TV has Quick Start+ enabled, it will put the OS into suspend mode instead of turning it off so unless you unplug the TV, it's not a real reboot.

[amadejvidic]

When you press the "Renew session" in the app, or "Extend Session Time" on TV, dev mode app does following things:

1. It makes request to the API to reset the timer
2. It updates the timer displayed on the screen.

While for the auto-renew script, it only reset the timer. If your TV has Quick Start+ enabled, it will put the OS into suspend mode instead of turning it off so unless you unplug the TV, it's not a real reboot.

Ok, so how does it update the timer? I would like to achieve the same with a script.

[mariotaku]

@MrOS88 By doing a power cycle (aka unplug). On the other hand, the logic that wipes developer mode apps, are performed on every boot, so not seeing the updated timer won't be a issue.

[amadejvidic]

@mariotaku what do you mean? I would like to send the same command that the Dev Manager sends to update the timer without power cycle. Can you help me find the code/command?

[mariotaku]

@MrOS88

1. Launching com.palmdts.devmode with {"extend":true} params would do the same thing like pressing the extend session button
2. If you do this in a script, the TV needs to be turned on (and it will launch dev mode app every time), while the script that makes API request works even when the TV isn't powered
3. Even the timer in the app doesn't populate, you still don't have to worry about that, it's just for display

[amadejvidic]

@mariotaku OK, in that case how can I "launch" com.palmdts.devmode with {"extend":true} using bash or Python? Please help.

[mariotaku]

If you're running the command on your computer, you could use ares-launch.

[amadejvidic]

Thank you, @mariotaku, that works great :)

If somebody else is interested, this is the exact command that you need:

ares-launch com.palmdts.devmode -p '{"extend":true}'; \

Of course, you first have to use the ares-setup-device to add your TV to the devices.

I have deployed a Docker container that performs this action every few days. What's interesting is that with Quick Start enabled, this command works even when the TV is sleeping (it doesn't even turn it on, but the counter resets).

[amadejvidic]

I think we can close this issue now.