ap-test/ap/server.py

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from flask import Flask, request, jsonify
from flask_cors import CORS, cross_origin
from .config import Config
from .db import Database
from .errors import bad_req, not_found
app = Flask(__name__)
JRD_JSON = "application/jrd+json; charset=utf-8"
WEBFINGER_ROUTE = "/.well-known/webfinger"
@app.route(WEBFINGER_ROUTE, methods=["GET"])
@cross_origin()
def hello_world():
config = Config()
db = Database()
resource = request.args.get("resource")
if resource is None:
bad_req("webfinger must have 'resource' arg")
if "acct:" not in resource:
return bad_req("webfinger resource query must have 'acct'")
if "@" not in resource:
return bad_req("webfinger resource query must have '@'")
parts = resource.split("acct:")
parts = parts[1].split("@")
username = parts[0]
hostname = parts[1]
if hostname != config.options["hostname"]:
bad_req(f"Only serves hostname {config.options['hostname']}")
user = db.get_user(username)
if user is None:
return not_found(f"resource {username} not found")
resp = jsonify(
{
"subject": f"acct:{username}@{hostname}",
"aliases": [f"http://{hostname}/@{username}"],
"links": [
{
"rel": "self",
"type": "application/activity+json",
"href": f"http://{hostname}/users/{username}",
},
],
}
)
resp.headers["Content-Type"] = JRD_JSON
return resp