File Synchronization Protocol

File{
    "name": String;
    "modified": long;
}

Directory{
    "directories": <Directory>[];
    "files": <File>[];
}

Request{
    "root": <Directory>;
    "rootPath": String;
    "connection": <Connection>;
    "action": Sync|Fetch|Delete;
}

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Actions

They model the interactions between connected devices. Every device can receive three different requests from another device; each can target the entire shared folder (root), a subfolder or even a single file:

1. Fetch:

The receiving device will compare it's own files to the ones of the sender, and then it will send all new(er) files from a specified location back to the device that sent the request.

2. Sync:

The receiving device will initially treat this request as a "Fetch" request. After that, it will then send its own "Fetch" request back to the initial sender.

3. Delete:

The receiving device will delete all files from a specified location.