484 lines
14 KiB
Python
484 lines
14 KiB
Python
#!/usr/bin/python3
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import os
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import sqlite3
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import time
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import secrets
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import configparser
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from waitress import serve
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from werkzeug.security import generate_password_hash, check_password_hash
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from flask import Flask, render_template, request, url_for, flash, redirect, session, make_response, send_from_directory, stream_with_context, Response, request
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# Parse configuration file, and check if anything is wrong with it
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config = configparser.ConfigParser()
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config.read("config.ini")
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HOST = config["config"]["HOST"]
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PORT = config["config"]["PORT"]
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SECRET_KEY = config["config"]["SECRET_KEY"]
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MAX_STORAGE = config["config"]["MAX_STORAGE"]
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if SECRET_KEY == "placeholder":
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print("[WARNING] Secret key not set")
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# Define Flask
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app = Flask(__name__)
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app.config["SECRET_KEY"] = SECRET_KEY
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# Database functions
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def get_db_connection():
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conn = sqlite3.connect("database.db")
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conn.row_factory = sqlite3.Row
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return conn
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def get_user(id):
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conn = get_db_connection()
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post = conn.execute("SELECT * FROM users WHERE id = ?",
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(id,)).fetchone()
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conn.close()
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if post is None:
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return "error"
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return post
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def get_note(id):
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conn = get_db_connection()
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post = conn.execute("SELECT * FROM notes WHERE id = ?",
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(id,)).fetchone()
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conn.close()
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if post is None:
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return "error"
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return post
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def get_space(id):
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conn = get_db_connection()
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notes = conn.execute("SELECT content, title FROM notes WHERE creator = ? ORDER BY id DESC;", (id,)).fetchall()
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conn.close()
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spacetaken = 0
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for x in notes:
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spacetaken = spacetaken + len(x["content"].encode("utf-8"))
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spacetaken = spacetaken + len(x["title"].encode("utf-8"))
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return spacetaken
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def get_note_count(id):
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conn = get_db_connection()
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notes = conn.execute("SELECT content, title FROM notes WHERE creator = ? ORDER BY id DESC;", (id,)).fetchall()
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conn.close()
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notecount = 0
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for x in notes:
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notecount = notecount + 1
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return notecount
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def get_session(id):
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conn = get_db_connection()
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post = conn.execute("SELECT * FROM sessions WHERE session = ?",
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(id,)).fetchone()
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conn.close()
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if post is None:
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return "error"
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return post
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def get_session_from_sessionid(id):
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conn = get_db_connection()
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post = conn.execute("SELECT * FROM sessions WHERE sessionid = ?",
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(id,)).fetchone()
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conn.close()
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if post is None:
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return "error"
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return post
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def check_username_taken(username):
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conn = get_db_connection()
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post = conn.execute("SELECT * FROM users WHERE lower(username) = ?",
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(username.lower(),)).fetchone()
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conn.close()
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if post is None:
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return "error"
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return post["id"]
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# Main page
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@app.route("/")
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def main():
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return render_template("main.html")
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# Web app
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@app.route("/app")
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def webapp():
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return render_template("app.html")
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# Login and signup
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@app.route("/signup")
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def signup():
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return render_template("signup.html")
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@app.route("/login")
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def login():
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return render_template("login.html")
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# Privacy policy
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@app.route("/privacy")
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def privacy():
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return render_template("privacy.html")
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# API
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@app.route("/api/signup", methods=("GET", "POST"))
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def apisignup():
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if request.method == "POST":
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data = request.get_json()
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username = data["username"]
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password = data["password"]
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if username == "":
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return {}, 422
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if len(username) > 20:
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return {}, 422
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if not username.isalnum():
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return {}, 422
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if password == "":
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return {}, 422
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if len(password) < 14:
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return {}, 422
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if not check_username_taken(username) == "error":
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return {}, 409
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hashedpassword = generate_password_hash(password)
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conn = get_db_connection()
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conn.execute("INSERT INTO users (username, password, created) VALUES (?, ?, ?)",
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(username, hashedpassword, str(time.time())))
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conn.commit()
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conn.close()
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userID = check_username_taken(username)
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user = get_user(userID)
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randomCharacters = secrets.token_hex(512)
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conn = get_db_connection()
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conn.execute("INSERT INTO sessions (session, id, device) VALUES (?, ?, ?)",
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(randomCharacters, userID, request.headers.get("user-agent")))
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conn.commit()
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conn.close()
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return {
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"key": randomCharacters
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}, 200
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@app.route("/api/login", methods=("GET", "POST"))
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def apilogin():
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if request.method == "POST":
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data = request.get_json()
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username = data["username"]
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password = data["password"]
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check_username_thing = check_username_taken(username)
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if check_username_thing == "error":
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return {}, 401
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userID = check_username_taken(username)
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user = get_user(userID)
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if not check_password_hash(user["password"], (password)):
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return {}, 401
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randomCharacters = secrets.token_hex(512)
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conn = get_db_connection()
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conn.execute("INSERT INTO sessions (session, id, device) VALUES (?, ?, ?)",
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(randomCharacters, userID, request.headers.get("user-agent")))
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conn.commit()
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conn.close()
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return {
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"key": randomCharacters
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}, 200
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@app.route("/api/userinfo", methods=("GET", "POST"))
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def apiuserinfo():
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if request.method == "POST":
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data = request.get_json()
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secretKey = data["secretKey"]
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userCookie = get_session(secretKey)
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user = get_user(userCookie["id"])
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datatemplate = {
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"username": user["username"],
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"id": user["id"],
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"created": user["created"],
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"storageused": get_space(user["id"]),
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"storagemax": MAX_STORAGE,
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"notecount": get_note_count(user["id"])
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}
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return datatemplate
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@app.route("/api/listnotes", methods=("GET", "POST"))
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def apilistnotes():
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if request.method == "POST":
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data = request.get_json()
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secretKey = data["secretKey"]
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userCookie = get_session(secretKey)
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user = get_user(userCookie["id"])
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conn = get_db_connection()
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notes = conn.execute("SELECT * FROM notes WHERE creator = ? ORDER BY id DESC;", (user["id"],)).fetchall()
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conn.close()
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datatemplate = []
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for note in notes:
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notetemplate = {
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"id": note["id"],
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"title": note["title"]
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}
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datatemplate.append(notetemplate)
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return datatemplate, 200
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@app.route("/api/exportnotes", methods=("GET", "POST"))
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def apiexportnotes():
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if request.method == "POST":
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data = request.get_json()
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secretKey = data["secretKey"]
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userCookie = get_session(secretKey)
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user = get_user(userCookie["id"])
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conn = get_db_connection()
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notes = conn.execute("SELECT * FROM notes WHERE creator = ? ORDER BY id DESC;", (user["id"],)).fetchall()
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conn.close()
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datatemplate = []
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for note in notes:
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notetemplate = {
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"id": note["id"],
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"created": note["created"],
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"edited": note["edited"],
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"title": note["title"],
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"content": note["content"]
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}
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datatemplate.append(notetemplate)
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return datatemplate, 200
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@app.route("/api/newnote", methods=("GET", "POST"))
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def apinewnote():
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if request.method == "POST":
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data = request.get_json()
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secretKey = data["secretKey"]
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noteName = data["noteName"]
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userCookie = get_session(secretKey)
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user = get_user(userCookie["id"])
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conn = get_db_connection()
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conn.execute("INSERT INTO notes (title, content, creator, created, edited) VALUES (?, ?, ?, ?, ?)",
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(noteName, "", user["id"], str(time.time()), str(time.time())))
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conn.commit()
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conn.close()
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return {}, 200
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@app.route("/api/readnote", methods=("GET", "POST"))
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def apireadnote():
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if request.method == "POST":
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data = request.get_json()
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secretKey = data["secretKey"]
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noteId = data["noteId"]
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userCookie = get_session(secretKey)
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user = get_user(userCookie["id"])
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note = get_note(noteId)
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if (note != "error"):
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if (user["id"] == note["creator"]):
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contenttemplate = {
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"content": note["content"]
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}
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return contenttemplate, 200
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else:
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return {}, 422
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else:
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return {}, 422
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@app.route("/api/editnote", methods=("GET", "POST"))
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def apieditnote():
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if request.method == "POST":
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data = request.get_json()
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secretKey = data["secretKey"]
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noteId = data["noteId"]
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content = data["content"]
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userCookie = get_session(secretKey)
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user = get_user(userCookie["id"])
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note = get_note(noteId)
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if get_space(user["id"]) + len(content.encode("utf-8")) > int(MAX_STORAGE):
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return {}, 418
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if (note != "error"):
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if (user["id"] == note["creator"]):
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conn = get_db_connection()
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conn.execute("UPDATE notes SET content = ?, edited = ? WHERE id = ?", (content, str(time.time()), noteId))
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conn.commit()
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conn.close()
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return {}, 200
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else:
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return {}, 403
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else:
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return {}, 422
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@app.route("/api/removenote", methods=("GET", "POST"))
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def apiremovenote():
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if request.method == "POST":
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data = request.get_json()
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secretKey = data["secretKey"]
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noteId = data["noteId"]
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userCookie = get_session(secretKey)
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user = get_user(userCookie["id"])
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note = get_note(noteId)
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if (note != "error"):
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if (user["id"] == note["creator"]):
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conn = get_db_connection()
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conn.execute("DELETE FROM notes WHERE id = ?", (noteId,))
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conn.commit()
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conn.close()
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return {}, 200
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else:
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return {}, 403
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else:
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return {}, 422
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@app.route("/api/deleteaccount", methods=("GET", "POST"))
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def apideleteaccount():
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if request.method == "POST":
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data = request.get_json()
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secretKey = data["secretKey"]
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userCookie = get_session(secretKey)
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user = get_user(userCookie["id"])
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conn = get_db_connection()
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conn.execute("DELETE FROM notes WHERE creator = ?", (userCookie["id"],))
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conn.commit()
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conn.close()
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conn = get_db_connection()
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conn.execute("DELETE FROM users WHERE id = ?", (userCookie["id"],))
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conn.commit()
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conn.close()
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return {}, 200
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@app.route("/api/sessions/list", methods=("GET", "POST"))
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def apisessionslist():
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if request.method == "POST":
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data = request.get_json()
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secretKey = data["secretKey"]
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userCookie = get_session(secretKey)
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user = get_user(userCookie["id"])
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conn = get_db_connection()
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sessions = conn.execute("SELECT * FROM sessions WHERE id = ? ORDER BY id DESC;", (user["id"],)).fetchall()
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conn.close()
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datatemplate = []
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for x in sessions:
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device = x["device"]
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thisSession = False
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if (x["session"] == secretKey):
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thisSession = True
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sessiontemplate = {
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"id": x["sessionid"],
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"thisSession": thisSession,
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"device": device
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}
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datatemplate.append(sessiontemplate)
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return datatemplate, 200
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@app.route("/api/sessions/remove", methods=("GET", "POST"))
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def apisessionsremove():
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if request.method == "POST":
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data = request.get_json()
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secretKey = data["secretKey"]
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sessionId = data["sessionId"]
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userCookie = get_session(secretKey)
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user = get_user(userCookie["id"])
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session = get_session_from_sessionid(sessionId)
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if (session != "error"):
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if (user["id"] == session["id"]):
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conn = get_db_connection()
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conn.execute("DELETE FROM sessions WHERE sessionid = ?", (session["sessionid"],))
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conn.commit()
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conn.close()
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return {}, 200
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else:
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return {}, 403
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else:
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return {}, 422
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@app.route("/api/submitfeedback", methods=("GET", "POST"))
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def apisubmitfeedback():
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if request.method == "POST":
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data = request.get_json()
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secretKey = data["secretKey"]
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feedback = data["feedback"]
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print("feedback: " + feedback)
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return {}, 200
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@app.route("/listusers/<secretkey>", methods=("GET", "POST"))
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def listusers(secretkey):
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if secretkey == SECRET_KEY:
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conn = get_db_connection()
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users = conn.execute("SELECT * FROM users").fetchall()
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conn.close()
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thing = ""
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for x in users:
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thing = str(x["id"]) + " - " + x["username"] + " - " + str(get_space(x["id"])) + "<br>" + thing
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return thing
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else:
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return redirect("/")
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@app.route("/api/logout")
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def apilogout():
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return render_template("logout.html")
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@app.errorhandler(500)
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def burger(e):
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return {}, 500
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@app.errorhandler(404)
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def burger(e):
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return render_template("error.html", errorCode=404, errorMessage="Page not found"), 404
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# Start server
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if __name__ == "__main__":
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print("[INFO] Server started")
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serve(app, host=HOST, port=PORT)
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print("[INFO] Server stopped") |