aria2 is a open sourced command-line download utility. This app offers a mobile interface to allow you to manage your aria on-the-go. Before using this app, you should set up your aria2 with rpc enabled. You can find the instruction on how to do so at https://aria2.github.io/.This app is release under Apache license, and you can find the source code of it at https://github.com/tsekityam/Aria2-Remote-for-Android.
These permissions are needed because the app needs to connect to the aria2 server.android.permission.INTERNETandroid.permission.ACCESS_NETWORK_STATE