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import json
from hashlib import scrypt
from os import urandom
from hmac import compare_digest
import sqlite3
from flask import (
Flask,
render_template,
request,
redirect,
url_for,
session,
g,
flash,
)
from werkzeug.exceptions import HTTPException
from captcha import Captcha
SCRYPT_PARAMS = {"n": 16384, "r": 8, "p": 1}
HEX_CHARS = set("0123456789ABCDEF")
GUEST_CAPTCHA = Captcha.from_string(
5, "m...cena....m...ebneb.clm", ".........................", True
)
GUIDE_CAPTCHAS = {
"Layer 01": [
Captcha.from_string(2, "a...", "...."),
Captcha.from_string(2, "aaa.", "01.."),
Captcha.from_string(2, "aaaa", "...."),
],
"Layer 02": [
Captcha.from_string(2, "b...", "...."),
Captcha.from_string(2, "b.b.", "0.1."),
Captcha.from_string(2, "bbbb", "00.."),
],
"Layer 03": [
Captcha.from_string(2, "c...", "...."),
Captcha.from_string(2, "c...", ".11."),
Captcha.from_string(2, "c.c.", "1.1."),
],
"Layer 04": [
Captcha.from_string(2, "ac..", "01.."),
Captcha.from_string(2, "ab..", "...."),
Captcha.from_string(2, "bba.", "...."),
],
"Layer 05": [
Captcha.from_string(2, "d...", "1..."),
Captcha.from_string(2, "d...", "..1."),
Captcha.from_string(2, "d..d", "...1"),
],
"Layer 06": [
Captcha.from_string(3, "c.c.c.c.c", "........."),
Captcha.from_string(3, "c.b...b.a", "........."),
Captcha.from_string(3, "d...d...d", "........."),
],
"Layer 11": [
Captcha.from_string(3, "m.m......", "10.10.00."),
Captcha.from_string(3, "m.......m", "10.10.01."),
Captcha.from_string(3, "m.m...m.m", "1.1...2.2"),
],
"Layer 12": [
Captcha.from_string(3, "m.m...n.n", "1.1...2.2"),
Captcha.from_string(3, "m.n...n.m", "1.1...2.2"),
Captcha.from_string(3, "m.m...n.n", "1.2....0."),
],
"Layer 13": [
Captcha.from_string(4, "m....m..........", "11..10.........."),
Captcha.from_string(4, "mmnn......cc...c", "01230...0...0..."),
Captcha.from_string(4, "mn............nm", "1...11.........."),
Captcha.from_string(4, "mn..nm........nm", "................"),
],
"Layer 14": [
Captcha.from_string(4, "m..a.m.........d", "11..10.......0.."),
Captcha.from_string(4, "m..a.m.........d", "11..10.......2.."),
Captcha.from_string(4, "m..a.md........d", "11..10.......0.."),
Captcha.from_string(4, "m.bn.mc.....n..d", "11..10.......2.."),
],
"Layer 21": [
Captcha.from_string(3, "....v....", "0101.10.0"),
Captcha.from_string(3, "....v....", "1101.10.0"),
Captcha.from_string(3, "v.......v", "1101020.."),
],
"Layer 22": [
Captcha.from_string(3, "v....v.v.", "0......1."),
Captcha.from_string(3, "vm.....m.", ".1.....0."),
Captcha.from_string(3, "v..m.m.v.", ".....1.0."),
],
"Layer 23": [
Captcha.from_string(3, "....l....", "...010..."),
Captcha.from_string(3, ".l..l..l.", ".1..0..1."),
Captcha.from_string(3, "..l.l.l..", ".1011...."),
],
"Layer 24": [
Captcha.from_string(3, "...cl...d", "....1...."),
Captcha.from_string(3, "l...d...l", "........."),
Captcha.from_string(3, "l...a.b.l", "........."),
],
"Layer 31": [
Captcha.from_string(3, "r...c...r", "31.312.1."),
Captcha.from_string(3, "r.b.c.b.r", "........."),
Captcha.from_string(3, "raa.d.a.r", "........."),
],
"Layer 32": [
Captcha.from_string(3, "....e....", "0001020.0"),
Captcha.from_string(3, "....e....", "....2...."),
Captcha.from_string(3, "e.e...e.e", "........."),
],
"Layer 33": [
Captcha.from_string(3, "ebebb.e.e", ".1.23...."),
Captcha.from_string(3, "eaeac.e.e", "........."),
Captcha.from_string(3, "eaebede.e", "........."),
],
"Layer 34": [
Captcha.from_string(4, "er...em..me.dbre", "................"),
],
}
def get_db():
if "db" not in g:
g.db = sqlite3.connect("akasha.db", detect_types=sqlite3.PARSE_DECLTYPES)
g.db.row_factory = sqlite3.Row
return g.db
def teardown(e=None):
if (db := g.pop("db", None)) is not None:
db.close()
def has_captcha(captcha_id):
return captcha_id in session.get("captcha", [])
def add_captcha(captcha_id):
if "captcha" not in session:
session["captcha"] = []
if captcha_id not in session["captcha"]:
session["captcha"].append(captcha_id)
session.modified = True
app = Flask(__name__)
with open("./config.json", "r", encoding="utf-8") as file:
config = json.load(file)
app.config["SECRET_KEY"] = config["fsk"]
LIGHT_URL = f"http://192.168.1.10/api/{config['light']}"
del config
app.teardown_appcontext(teardown)
@app.context_processor
def context_processor():
return dict(has_captcha=has_captcha)
@app.errorhandler(HTTPException)
def handle_bad_request(e):
if request.endpoint != "static":
# TODO: Create an actual error page.
if "username" not in session:
flash("Guest access is temporarily restricted. Please log in to continue.")
return redirect(url_for("login"))
flash(f"Error {e.code}: {e.name}")
flash("You have been redirected to the main page.")
return redirect(url_for("index"))
return e
@app.route("/")
def index():
db = get_db()
cur = db.cursor()
cur.execute("SELECT * FROM news ORDER BY id DESC LIMIT 1")
results = cur.fetchone()
return render_template("index.html", news=results)
@app.route("/login", methods=["GET", "POST"])
def login():
db = get_db()
if request.method == "POST":
username = request.form.get("username")
password = request.form.get("password")
if not username or not password:
flash("Error: Empty username or password.")
return redirect(url_for("login"))
if request.form.get("register") == "1":
cur = db.cursor()
cur.execute("SELECT 1 FROM users WHERE username=?", (username,))
if cur.fetchone():
flash("Error: User already exists.")
return redirect(url_for("login"))
salt = urandom(32)
hash = scrypt(password.encode("utf-8"), salt=salt, **SCRYPT_PARAMS)
cur.execute(
"INSERT INTO users (username, hash, salt) VALUES (?, ?, ?)",
(username, hash, salt),
)
flash("Success: User registered.")
db.commit()
else:
cur = db.cursor()
cur.execute("SELECT hash, salt FROM users WHERE username=?", (username,))
results = cur.fetchone()
if not results:
flash("Error: Invalid username or password.")
return redirect(url_for("login"))
expected_hash, salt = results
actual_hash = scrypt(password.encode("utf-8"), salt=salt, **SCRYPT_PARAMS)
if not compare_digest(expected_hash, actual_hash):
flash("Error: Invalid username or password.")
return redirect(url_for("login"))
session["username"] = username
flash(f"Success: Logged in as {username}.")
return redirect(url_for("index"))
return render_template("login.html")
@app.route("/guest")
def guest_login():
if has_captcha(GUEST_CAPTCHA.id) and "username" not in session:
session["username"] = "guest"
flash(f"Success: Logged in as guest.")
return redirect(url_for("index"))
return render_template("guest.html", captcha=GUEST_CAPTCHA)
@app.route("/eguide")
def eguide():
return render_template("eguide.html", captchas=GUIDE_CAPTCHAS)
@app.route("/logout")
def logout():
if "username" in session:
del session["username"]
if "captcha" in session:
del session["captcha"]
flash("Success: You have been logged out.")
return redirect(url_for("index"))
@app.route("/hyde")
def hydematch():
if "username" not in session:
flash(
"The Drosera Springs Wrestling Database is only available to logged-in users."
)
return redirect(url_for("login"))
db = get_db()
cur = db.cursor()
cur.execute("SELECT * FROM matches ORDER BY id DESC")
results = cur.fetchall()
return render_template("hyde.html", matches=results)
@app.route("/news")
def news():
db = get_db()
cur = db.cursor()
cur.execute("SELECT * FROM news ORDER BY id DESC")
results = cur.fetchall()
return render_template("news.html", news=results)
@app.route("/captcha")
def captcha():
size = request.args.get("size", "")
label = request.args.get("label", "")
lock = request.args.get("lock", "")
answer = request.args.get("answer", "")
captcha = Captcha.safe_validate(size, label, lock, answer)
if captcha:
add_captcha(captcha.id)
return {"valid": True}, 200
return {"valid": False}, 400
|
