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utils.py
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utils.py
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import secrets
import threading
import os
import json
import contextlib
import hashlib
from pathlib import Path
from typing import List
from copy import deepcopy
from werkzeug.security import safe_join
from flask import Flask, Response, jsonify
import pymongo
from bson import ObjectId
from flask_login import UserMixin, current_user
from dotenv import load_dotenv
from discord_webhook import DiscordWebhook, DiscordEmbed
import shared.cache
import shared.mongodb
from user_settings import SETTINGS, TYPE_FUNCTIONS, DEFAULT_SETTINGS
load_dotenv()
assert shared.mongodb.DATABASE is not None
users = shared.mongodb.DATABASE.get_collection("users")
ical_tokens = shared.mongodb.DATABASE.get_collection("ical_tokens")
creds = shared.mongodb.DATABASE.get_collection("creds")
VALID_SCHOOLS = [elem["_id"] for elem in list(creds.find({}))]
meta = shared.mongodb.DATABASE.get_collection("meta")
# RESPONSE WRAPPERS
def send_success(data=None) -> Response:
if data is None:
data = {}
return jsonify({"success": True, "data": data})
def send_error(msg: str) -> Response:
return jsonify({"success": False, "error": msg})
# USER MANAGEMENT
class User(UserMixin):
def __init__(self, mongo_id: str):
self.mongo_id = mongo_id
self.user = None
def get_id(self):
return self.mongo_id
def get_user(self):
self.user = users.find_one({'_id': ObjectId(self.mongo_id)})
return self.user
def update_field(self, field, value):
self.get_user()
users.update_one({'_id': ObjectId(self.mongo_id)}, {"$set": {field: value}})
def get_field(self, field, default=None):
self.get_user()
return self.user.get(field, default)
def get_authorized_schools(self):
self.get_user()
return self.user.get("authorized_schools", [])
def authorize_school(self, school_num: str):
self.get_user()
tmp_authorized_schools = self.user.get("authorized_schools", [])
if school_num not in tmp_authorized_schools:
tmp_authorized_schools.append(school_num)
users.update_one({'_id': ObjectId(self.mongo_id)},
{"$set": {'authorized_schools': tmp_authorized_schools}})
def get_settings(self):
self.get_user()
cur_settings = deepcopy(DEFAULT_SETTINGS)
user_settings = self.user.get("settings", {})
for setting, value in user_settings.items():
cur_settings[setting] = value
return cur_settings
def update_settings(self, user_settings=DEFAULT_SETTINGS) -> Response:
self.get_user()
new_settings = {}
for setting, setting_data in SETTINGS.items():
validate_function = TYPE_FUNCTIONS[setting_data["type"]]["validation"]
cur_setting = user_settings.get(setting, setting_data["default"])
if not validate_function(cur_setting):
send_error(f"ungültiger Wert für {cur_setting} Einstellung({setting_data['type']} erwartet)")
conversion_function = TYPE_FUNCTIONS[setting_data["type"]]["conversion"]
try:
cur_setting = conversion_function(cur_setting)
except Exception:
send_error(f"ungültiger Wert für {cur_setting} Einstellung ({setting_data['type']} erwartet)")
new_settings[setting] = cur_setting
users.update_one({'_id': ObjectId(self.mongo_id)}, {"$set": {'settings': new_settings}})
return send_success()
# get setting for user, if setting not set get default setting
def get_setting(self, setting_key):
return self.get_field("settings", {}).get(setting_key, DEFAULT_SETTINGS.get(setting_key, None))
"""
what does a favorite need:
-> name by user (default "Favourit {n}")
-> priority
-> school_id, plan_type, plan_value
"""
def set_favorites(self, favorites) -> Response:
new_favorites = []
for cur_favorite in favorites:
valid_fields = ["school_num", "name", "priority", "plan_type", "plan_value", "preferences"]
favorite = {elem: cur_favorite.get(elem) for elem in valid_fields}
for key in favorite:
if favorite[key] is None:
if favorite["plan_type"] == "room_overview" and key == "plan_value":
continue
return send_error(f"{key} nicht angegeben")
if favorite["school_num"] not in self.get_authorized_schools():
return send_error("Schule nicht autorisiert")
if len(favorite["name"]) > 40:
return send_error("Name zu lang")
if not isinstance(favorite["priority"], int) or favorite["priority"] < 0 or favorite["priority"] > 100:
return send_error("Priorität muss eine Zahl zwischen 0 und 100 sein")
if favorite["plan_type"] not in ["forms", "teachers", "rooms", "room_overview"]:
return send_error("invalide Planart")
cache = shared.cache.Cache(Path(".cache") / favorite["school_num"])
if favorite["plan_type"] == "room_overview":
favorite["plan_value"] = None
favorite["preferences"] = None
new_favorites.append(favorite)
continue
available_plans = json.loads(cache.get_meta_file(f"{favorite['plan_type']}.json"))
if favorite["plan_type"] in available_plans:
available_plans = available_plans[favorite["plan_type"]].keys()
else:
available_plans = available_plans.keys()
if favorite["plan_value"] not in available_plans:
return send_error("invalider Plan (Klasse/Lehrer/Raum) existiert nicht")
if favorite["plan_type"] != "forms":
favorite["preferences"] = None
new_favorites.append(favorite)
continue
available_preferences = json.loads(
cache.get_meta_file("forms.json")
)["forms"][favorite["plan_value"]]["class_groups"].keys()
favorite["preferences"] = [elem for elem in favorite["preferences"] if elem in available_preferences]
new_favorites.append(favorite)
users.update_one({'_id': ObjectId(self.mongo_id)}, {"$set": {'favourites': new_favorites}})
return send_success(new_favorites)
def generate_ical_tokens(self, overwrite: bool = False):
if not overwrite:
if ical_tokens.find_one({"user_id": self.mongo_id}):
return
ical_tokens.delete_many({"user_id": self.mongo_id})
favs = self.get_field("favourites", [])
new_favs = []
for i, fav in enumerate(favs):
token = secrets.token_hex(32)
new_favs.append(
fav | {
"token": token,
}
)
ical_tokens.update_one(
{"token": token},
{"$set": {"user_id": self.mongo_id, "favorite_index": i}},
upsert=True
)
users.update_one({'_id': ObjectId(self.mongo_id)}, {"$set": {'favourites': new_favs}})
def resolve_ical_token(token: str) -> tuple[str, int] | None:
token_data = ical_tokens.find_one({"token": token})
if token_data is None:
return None
else:
return token_data["user_id"], token_data["favorite_index"]
def get_user(user_id):
try:
return users.find_one({'_id': ObjectId(user_id)})
except Exception:
return
# DOESNT WORK
def is_admin(func):
def wrapper(*args, **kwargs):
if not current_user.user:
current_user.get_user()
if not current_user.user.get("admin"):
return send_error("Du bist kein Admin")
return func(*args, **kwargs)
wrapper.__name__ = func.__name__
return wrapper
class AddStaticFileHashFlask(Flask):
def __init__(self, *args, **kwargs):
super(AddStaticFileHashFlask, self).__init__(*args, **kwargs)
self._file_hash_cache = {}
def inject_url_defaults(self, endpoint, values):
super(AddStaticFileHashFlask, self).inject_url_defaults(endpoint, values)
if endpoint == "static" and "filename" in values and "site.webmanifest" not in values["filename"]:
filepath = safe_join(self.static_folder, values["filename"])
if os.path.isfile(filepath):
cache = self._file_hash_cache.get(filepath)
mtime = os.path.getmtime(filepath)
if cache is not None:
cached_mtime, cached_hash = cache
if cached_mtime == mtime:
values["h"] = cached_hash
return
h = hashlib.md5()
with contextlib.closing(open(filepath, "rb")) as f:
h.update(f.read())
h = h.hexdigest()
self._file_hash_cache[filepath] = (mtime, h)
values["h"] = h
# CREDS MANAGEMENT
def json_to_mongo():
with open("creds.json", "r", encoding="utf-8") as f:
json_creds = json.load(f)
for very_short_name, elem in list(json_creds.items()):
elem["_id"] = elem["school_number"]
elem["short_name"] = very_short_name
creds.update_one(
{"_id": elem["_id"]},
{"$set": elem},
upsert=True
)
# gets the passwords as well
def get_school_by_id(school_num: str):
result = creds.find_one(
{"_id": school_num},
)
return result
# doesn't get the passwords
def get_all_schools(only_shown: bool = True, include_ids: list[str] = None):
if only_shown:
assert include_ids is not None
pipeline = [
{
"$match": {
"$or": [
{"is_shown": True},
{"_id": {"$in": include_ids}}
]
}
}
]
else:
pipeline = []
pipeline += [
{
"$sort": {"count": pymongo.DESCENDING}
},
{
"$project": {
"display_name": 1,
"school_number": 1,
"icon": 1,
"hosting": 1,
}
},
{
"$set": {
"creds_needed": {
"$gt": [
"$hosting.creds",
{}
]
}
}
},
{
"$unset": ["hosting"]
},
]
return list(creds.aggregate(pipeline))
def add_database_icons():
school_icons = os.listdir("client/public/base_static/images/school_icons")
for school_icon in school_icons:
cur_num = school_icon.split(".")[0]
creds.update_one(
{"_id": cur_num},
{"$set": {"icon": school_icon}}
)
def update_school_authorization_count():
pipeline = [
{
"$unwind": "$authorized_schools"
},
{
"$group": {
"_id": "$authorized_schools",
"count": {"$sum": 1}
}
},
{
"$lookup": {
"from": "creds",
"localField": "_id",
"foreignField": "_id",
"as": "school_info"
}
},
{
"$unwind": "$school_info"
}
]
results = list(users.aggregate(pipeline))
results = [
{k: v for k, v in elem.items() if k not in ["school_info"]} for elem in results
]
for result in results:
creds.update_one(
{"_id": result["_id"]},
{"$set": {"count": result["count"]}}
)
def run_in_background(func):
def wrapper(*args, **kwargs):
thread = threading.Thread(target=func, args=args, kwargs=kwargs)
thread.start()
return thread
return wrapper
# WEBHOOKS
@run_in_background
def webhook_send(key: str, message: str = "", embeds: List[DiscordEmbed] = None):
meta_env = "WEBHOOK_META"
if os.getenv("PRODUCTION") is None or os.getenv("PRODUCTION") == "False":
meta_env = "WEBHOOK_TEST"
key = "WEBHOOK_TEST"
embeds = [] if not embeds else embeds
key = key.upper()
if not os.getenv(key):
return
url = os.getenv(key)
webhook = DiscordWebhook(url=url, content=message, username="VPlan-Bot",
avatar_url="https://vplan.fr/static/images/icons/android-chrome-192x192.png")
for embed in embeds:
webhook.add_embed(embed)
"""if request:
if os.getenv("WEBHOOK_META"):
meta_webhook = DiscordWebhook(url=os.getenv(meta_env), content=message, username="VPlan-Bot", avatar_url="https://vplan.fr/static/images/icons/android-chrome-192x192.png")
meta_embed = BetterEmbed(title="Metadaten", color="808080")
if current_user:
meta_embed.add_embed_field("Username:", f"{current_user.get_field('nickname')}", inline=False)
meta_embed.add_embed_field("IP-Adresse:", f"`{request.remote_addr}`\n more info at https://whatismyipaddress.com/ip/{request.remote_addr}", inline=False)
meta_embed.add_embed_field("User-Agent:", f"`{request.headers.get('user-agent')}`")
meta_webhook.add_embed(meta_embed)
meta_webhook.execute()"""
webhook.execute()
class BetterEmbed(DiscordEmbed):
def add_cleaned_field(self, name: str, value: str, inline: bool = True) -> None:
while "`" in name:
name = name.replace("`", "")
while "`" in value:
value = value.replace("`", "")
self.add_embed_field(name, value, inline)
def update_database():
global VALID_SCHOOLS
add_database_icons()
update_school_authorization_count()
VALID_SCHOOLS = [elem["_id"] for elem in list(creds.find({}))]
@run_in_background
def meta_to_database(request_data):
meta.insert_one(request_data)
if __name__ == "__main__":
# json_to_mongo()
...