Nathan Woodburn
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324 lines
10 KiB
Python
324 lines
10 KiB
Python
import time
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from .varo_auth import flask_login as varo_auth_flask_login
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from flask import Blueprint, request, session, url_for
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from flask import render_template, redirect, jsonify, send_from_directory
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from werkzeug.security import gen_salt
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from authlib.integrations.flask_oauth2 import current_token
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from authlib.oauth2 import OAuth2Error
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from .models import db, User, OAuth2Client
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from .oauth2 import authorization, require_oauth
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import os
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import requests
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import dns.message
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import dns.query
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import dns.rdatatype
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from requests_doh import DNSOverHTTPSSession, add_dns_provider
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from datetime import timedelta
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from eth_account.messages import encode_defunct
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from eth_account import Account
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bp = Blueprint("home", __name__)
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openSeaAPIKey = os.getenv("OPENSEA_API_KEY")
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if not os.path.exists("website/avatars"):
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os.makedirs("website/avatars")
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def current_user():
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if "id" in session:
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uid = session["id"]
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return User.query.get(uid)
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return None
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def split_by_crlf(s):
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return [v for v in s.splitlines() if v]
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@bp.route("/", methods=("GET", "POST"))
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def home():
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next_page = request.args.get("next")
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if request.method == "POST":
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auth = varo_auth_flask_login(request)
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if auth == False:
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return redirect("/?error=login_failed")
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print(auth)
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user = User.query.filter_by(username=auth).first()
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if not user:
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user = User(username=auth)
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db.session.add(user)
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db.session.commit()
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session["id"] = user.id
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# Make sure the session is permanent
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session.permanent = True
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# if user is not just to log in, but need to head back to the auth page, then go for it
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if next_page:
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return redirect(next_page)
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return redirect("/")
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user = current_user()
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if user:
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clients = OAuth2Client.query.filter_by(user_id=user.id).all()
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if next_page:
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return redirect(next_page)
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else:
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clients = []
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# Check if the user has signed in with HNS ID
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hnsid=''
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address=''
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if "address" in session:
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address = session["address"]
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openseaInfo = requests.get(f"https://api.opensea.io/api/v2/chain/optimism/account/{address}/nfts?collection=handshake-slds",
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headers={"Accept": "application/json",
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"x-api-key":openSeaAPIKey})
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if openseaInfo.status_code == 200:
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hnsid = openseaInfo.json()
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return render_template("home.html", user=user, clients=clients, address=address, hnsid=hnsid)
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@bp.route("/hnsid", methods=["POST"])
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def hnsid():
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# Get address and signature from the request
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address = request.json.get("address")
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signature = request.json.get("signature")
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message = request.json.get("message")
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# Verify the signature
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msg = encode_defunct(text=message)
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signer = Account.recover_message(msg, signature=signature).lower()
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if signer != address:
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print("Signature verification failed")
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print(signer, address)
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return jsonify({"success": False})
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# Save the address in the session
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session["address"] = address
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session.permanent = True
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return jsonify({"success": True})
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@bp.route("/hnsid/<domain>")
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def hnsid_domain(domain):
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# Get the address from the session
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address = session.get("address")
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if not address:
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return jsonify({"error": "No address found in session"})
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# Get domain info from Opensea
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openseaInfo = requests.get(f"https://api.opensea.io/api/v2/chain/optimism/account/{address}/nfts?collection=handshake-slds",
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headers={"Accept": "application/json",
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"x-api-key":openSeaAPIKey})
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if openseaInfo.status_code != 200:
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return jsonify({"error": "Failed to get domain info from Opensea"})
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hnsid = openseaInfo.json()
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for nft in hnsid["nfts"]:
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if nft["name"] == domain:
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# Add domain to the session
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user = User.query.filter_by(username=domain).first()
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if not user:
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user = User(username=domain)
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db.session.add(user)
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db.session.commit()
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session["id"] = user.id
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session.permanent = True
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# Check if next page is specified
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next_page = request.args.get("next")
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if next_page:
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return redirect(next_page)
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return redirect("/")
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return jsonify({"success": False, "error": "Domain not found"})
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@bp.route("/logout")
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def logout():
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del session["id"]
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next = request.args.get("next")
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if next:
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return redirect(url_for("home.home", next=next))
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return redirect("/")
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@bp.route("/create_client", methods=("GET", "POST"))
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def create_client():
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user = current_user()
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if not user:
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return redirect("/")
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if request.method == "GET":
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return render_template("create_client.html")
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client_id = gen_salt(24)
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client_id_issued_at = int(time.time())
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client = OAuth2Client(
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client_id=client_id,
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client_id_issued_at=client_id_issued_at,
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user_id=user.id,
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)
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form = request.form
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client_metadata = {
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"client_name": form["client_name"],
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"client_uri": form["client_uri"],
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"grant_types": split_by_crlf(form["grant_type"]),
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"redirect_uris": split_by_crlf(form["redirect_uri"]),
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"response_types": split_by_crlf(form["response_type"]),
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"scope": form["scope"],
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"token_endpoint_auth_method": form["token_endpoint_auth_method"],
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}
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client.set_client_metadata(client_metadata)
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if form["token_endpoint_auth_method"] == "none":
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client.client_secret = ""
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else:
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client.client_secret = gen_salt(48)
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db.session.add(client)
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db.session.commit()
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return redirect("/")
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@bp.route("/delete_client")
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def delete_client():
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user = current_user()
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if not user:
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return redirect("/")
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if user.id != 1:
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return redirect("/")
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client_id = request.args.get("client_id")
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client = OAuth2Client.query.filter_by(client_id=client_id).first()
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if client:
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db.session.delete(client)
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db.session.commit()
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return redirect("/")
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@bp.route("/oauth/authorize", methods=["GET", "POST"])
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def authorize():
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user = current_user()
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# if user log status is not true (Auth server), then to log it in
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if not user:
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return redirect(url_for("home.home", next=request.url))
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if request.method == "GET":
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try:
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grant = authorization.get_consent_grant(end_user=user)
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except OAuth2Error as error:
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return error.error
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return render_template("authorize.html", user=user, grant=grant)
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grant_user = user
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return authorization.create_authorization_response(grant_user=grant_user)
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@bp.route("/oauth/token", methods=["POST"])
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def issue_token():
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return authorization.create_token_response()
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@bp.route("/oauth/revoke", methods=["POST"])
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def revoke_token():
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return authorization.create_endpoint_response("revocation")
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@bp.route("/api/me")
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@require_oauth(["profile", "openid"])
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def api_me():
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user = current_token.user
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userInfo = {
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"id": user.id,
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"uid": user.id,
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"username": user.username,
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"email": f"{user.username}@login.hns.au",
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"displayName": user.username + "/",
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"sub": user.id,
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"name": user.username,
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"given_name": user.username,
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"family_name": user.username,
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"nickname": user.username,
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"preferred_username": user.username,
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"profile": f"https://login.hns.au/u/{user.username}",
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"picture": f"https://login.hns.au/u/{user.username}/avatar.png",
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"website": f"https://{user.username}",
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"email_verified": True
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}
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return jsonify(userInfo)
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@bp.route("/discovery")
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def autodiscovery():
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host = request.host
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discovery = {
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"issuer": f"https://{host}/",
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"authorization_endpoint": f"https://{host}/oauth/authorize",
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"token_endpoint": f"https://{host}/oauth/token",
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"userinfo_endpoint": f"https://{host}/api/me",
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"revocation_endpoint": f"https://{host}/oauth/revoke",
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"response_types_supported": ["code"],
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"subject_types_supported": ["public"],
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"id_token_signing_alg_values_supported": ["RS256"],
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"scopes_supported": ["openid", "email", "profile"],
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"token_endpoint_auth_methods_supported": [
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"client_secret_basic",
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"client_secret_post",
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],
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"grant_types_supported": ["authorization_code"],
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}
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return jsonify(discovery)
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@bp.route("/u/<username>")
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def profile(username):
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user = User.query.filter_by(username=username).first()
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return jsonify({"name": user.username, "id": user.id})
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@bp.route("/u/<username>/avatar.png")
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def avatar(username):
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# Check if file exists
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if os.path.exists(f"website/avatars/{username}.png"):
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return send_from_directory("avatars", f"{username}.png", mimetype="image/png")
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# If not, download from HNS info
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query = dns.message.make_query(username, dns.rdatatype.TXT)
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dns_request = query.to_wire()
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# Send the DNS query over HTTPS
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response = requests.post('https://hnsdoh.com/dns-query', data=dns_request, headers={'Content-Type': 'application/dns-message'})
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# Parse the DNS response
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dns_response = dns.message.from_wire(response.content)
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# Loop over TXT records and look for profile avatar
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avatar_url=""
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for record in dns_response.answer:
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if record.rdtype == dns.rdatatype.TXT:
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for txt in record:
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txt_value = txt.to_text().strip('"')
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if txt_value.startswith("profile avatar="):
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avatar_url = txt_value.split("profile avatar=")[1]
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break
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if avatar_url != "":
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# Download the avatar using DNS-over-HTTPS
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add_dns_provider("hns", "https://hnsdoh.com/dns-query")
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session = DNSOverHTTPSSession(provider="hns")
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response = session.get(avatar_url)
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with open(f"website/avatars/{username}.png", "wb") as f:
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f.write(response.content)
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return send_from_directory("avatars", f"{username}.png", mimetype="image/png")
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return send_from_directory("templates", "favicon.png", mimetype="image/png")
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@bp.route("/favicon.png")
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def favicon():
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return send_from_directory("templates", "favicon.png", mimetype="image/png")
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