A script that makes I2P domain registration easy.

regaddr_helper.py

"""
INSTRUCTIONS:

To use this script, you will need to download and
compile i2pd-tools, which can be found on:
https://github.com/purplei2p/i2pd-tools

Then you save this file to **the i2pd-tools folder**
and run this script.
"""

import subprocess
import os


def prompt_input(p: str, *, key=False, check=lambda _: True) -> str:
    while True:
        out = input(p)
        if out == "":
            continue

        if not check(out):
            print("Invalid Input")
            continue

        if key:
            if os.path.isdir(out):
                print("Is a directory")
                continue
            if not os.path.exists(out):
                print("File does not exist")
                continue
            try:
                subprocess.run(["./keyinfo", out], check=True)
            except subprocess.CalledProcessError:
                continue
        break
    return out

print("""
What do u want to do?

1 - Register address
2 - Register subdomain
""")
op = prompt_input("Enter choice > ", check=lambda _: _ in ("1", "2"))

match op:
    case "1":
        key = prompt_input("Path to key file: ", key=True)
        domain = prompt_input("Domain name: ")

        subprocess.run(["./regaddr", key, domain], check=True)

        print("This is your auth string. You can now register it on http://reg.i2p/add. It may take 24 hours for it to be fully registered.")
    case "2":
        key = prompt_input("Path to root domain key file: ", key=True)
        domain = prompt_input("Root domain name: ")
        subdomain_key = prompt_input("Path to subdomain key file: ", key=True)
        subdomain = prompt_input("Subdomain name: ")

        step1 = subprocess.run(["./regaddr_3ld", "step1", subdomain_key, subdomain], stdout=subprocess.PIPE, check=True)
        with open("step1.txt", "w") as f:
            f.write(step1.stdout.decode("utf-8"))
        step2 = subprocess.run(["./regaddr_3ld", "step2", "step1.txt", key, domain], stdout=subprocess.PIPE, check=True)
        with open("step2.txt", "w") as f:
            f.write(step2.stdout.decode("utf-8"))
        subprocess.run(["./regaddr_3ld", "step3", "step2.txt", subdomain_key])
        print("This is your auth string. You can now register it on http://reg.i2p/add. It may take 24 hours for it to be fully registered.")
        
        os.remove("step1.txt")
        os.remove("step2.txt")