Files
snikket-web-portal/snikket_web/__init__.py
2020-03-07 12:38:17 +01:00

101 lines
2.4 KiB
Python

import base64
import binascii
import quart.flask_patch
from quart import (
Quart, session, request, render_template, redirect, url_for, Response
)
from .prosodyclient import client
app = Quart(__name__)
app.config.from_envvar("SNIKKET_WEB_CONFIG")
client.init_app(app)
client.default_login_redirect = "login"
@app.route("/login", methods=["GET", "POST"])
async def login():
if client.has_session:
return redirect(url_for('user.index'))
if request.method == "POST":
form = await request.form
jid = form["address"]
password = form["password"]
await client.login(jid, password)
return redirect(url_for('user.index'))
return await render_template("login.html")
@app.route("/")
async def home():
if client.has_session:
return redirect(url_for('user.index'))
return redirect(url_for('login'))
@app.route("/meta/about.html")
async def about():
return await render_template("about.html")
@app.route("/meta/demo.html")
async def demo():
return await render_template("demo.html")
def repad(s):
return s + "=" * (4 - len(s) % 4)
@app.route("/avatar/<from_>/<code>")
async def avatar(from_, code):
try:
etag = request.headers["if-none-match"]
except KeyError:
etag = None
address = base64.urlsafe_b64decode(repad(from_)).decode("utf-8")
info = await client.get_avatar(address, metadata_only=True)
bin_hash = binascii.a2b_hex(info["sha1"])
new_etag = base64.urlsafe_b64encode(bin_hash).decode("ascii").rstrip("=")
headers = {
"ETag": new_etag,
}
if etag is not None:
if new_etag == etag:
return Response(
[],
304,
content_type=info["type"], headers=headers
)
data = await client.get_avatar_data(address, info["sha1"])
return Response(data, content_type=info["type"], headers=headers)
@app.context_processor
def proc():
def url_for_avatar(entity, hash_, **kwargs):
return url_for(
"avatar",
from_=base64.urlsafe_b64encode(entity.encode("utf-8")).decode("ascii").rstrip("="),
code=base64.urlsafe_b64encode(binascii.a2b_hex(hash_)[:8]).decode("ascii").rstrip("="),
**kwargs
)
return {
"url_for_avatar": url_for_avatar
}
from .user import user_bp # NOQA
app.register_blueprint(user_bp)