🚦 Traffic Light

Beautiful traffic logging for PGO.

Features

Traffic Light takes specially formatted data from a mitm app and displays them in real-time, allowing to see exactly what's going on.

It comes bundled in a CLI that offers a few more utilities.

TUI

The tool comes with a fully featured UI running in your Terminal.

There's a log of all captured requests on the left. You can click on any Proto to open it in the Inspect View to analyze it further.

By pressing >, ENTER or RETURN (or by simply clicking on the left button) you enter the Command Input. Here you can choose between a set of useful controls, either by pressing the specified key or by clicking on it.

• Filters
  • Text: Filters Method names, Message names and body. Also highlights the search string in Inspect View
  • Methods: (with autocomplete!) Filter by method names, i.e. METHOD_FORT_DETAILS or SOCIAL_ACTION_GET_INBOX
  • Messages: (with autocomplete!) Filter by message names, i.e. GetMapObjectsProto or EncounterOutProto
• Pause: Ignores incoming requests
• First Proto Only: In most requests, only the first entry/"Proto" matters. This helps clear the clutter
• Follow: Scrolls the Log to show new incoming requests
• Empty Log: Clears the Log
• Copy Inspected: Copies the text from the Inspected View

Legacy Outputs

There's also an option to simply print all requests or send them to Discord. You can use those if you don't like the UI.

TrafficLight CLI

• trafficlight run to run the TUI
• trafficlight show MESSAGENAME to show the definition for any Message to Enum. Uses fuzzy search to display the closest match

Installation

• The TUI is made to be used on your local computer with a local phone

Install using pipx (or pip)

• pipx install git+https://github.com/ccev/TrafficLight
  • I highly recommend using pipx. You can install it using pip install pipx. If you prefer, you can also use pip instead
• If you installed pipx correctly, the trafficlight command will now be available in your PATH
• Running the TUI opens its endpoint at port 3335 of your computer. You can now open a supported MITM on your phone.

Locally

• Clone repo, copy config.example.toml to config.toml, fill out the config
• Make sure you use python 3.11+
• install Poetry if you haven't already
• Run poetry install
• To start, run poetry run trafficlight run in your TrafficLight root directory
• Open a supported MITM on your phone. Set POST destination to your endpoint from config.toml (default: http://{computer IP}:3335)

Supporting MITMs

If you want your own MITM to support Traffic Light, all it needs to do is for every request the game makes, send a POST request to a specified endpoint with the body looking as follows. It should run alongside the game, so you can play it normally while inspecting the traffic.

{
    "rpcid": 1,
    "rpcstatus": 1,
    "rpchandle": 1, // optional field
    "protos": [
        {
            "method": 1,
            "request": "<b64 encoded string>",
            "response": "<b64 encoded string>"
        },
        {
            "method": 106,
            "request": "",
            "response": ""
        }
    ]
}

Additional notes on TUI compatibility

The TUI uses Textual. Here's a copy from their docs on platform compatibility.

Linux (all distros)

All Linux distros come with a terminal emulator that can run Textual apps.

MacOS

The default terminal app is limited to 256 colors. We recommend installing a newer terminal such as iterm2, Kitty, or WezTerm.

Windows

The new Windows Terminal runs Textual apps beautifully.