lemoncurry/wellknowns/views/nostr.py

from django.http import JsonResponse
from users.models import User

aliases = {"dani": ("_", "00dani")}
unaliases = {alias: name for (name, aliases) in aliases.items() for alias in aliases}


def nostr_json(request) -> JsonResponse:
    users = User.objects.filter(nostr_key__isnull=False)

    if "name" in request.GET:
        name = request.GET["name"]
        if name in unaliases:
            name = unaliases[name]
        users = users.filter(username=name)

    names = {u.username: u.nostr_key for u in users}
    for name in list(names.keys()):
        for alias in aliases.get(name, []):
            names[alias] = names[name]

    relays = {u.nostr_key: u.nostr_relays for u in users if u.nostr_relays}

    response = {"names": names}
    if relays:
        response["relays"] = relays
    return JsonResponse(response)