Add regex verification to the backend

import re

from flask import *

from findmedia import *

@app.route("/find/<id>")

async def find(id):

    if not re.match(r"^[A-Za-z0-9_-]{10}[AEIMQUYcgkosw048]$", id):

        return {"status": "bad.id", "true": True, "id": None}, 400

    return {

            "status": "find.id",

            "true": True,

async def ui():

    return render_template("init.html")

@app.route("/nojs")

async def formsubmit():

    vid = request.args.get("vid") or abort(400)

    return render_template("fid.html", data=(await find(vid)), vid=vid, nonoscript=True)

@app.route("/ui/fid")

async def fid():

    vid = request.args.get("vid") or abort(400)