Created basic version of the bot

src/__init__.py

@@ -10,8 +10,6 @@ engine: Engine
 
 
 def main() -> None:
-    global engine
-
     load_dotenv("./.env")
     engine = database.prepare.get_engine(
         host=os.getenv("DB_HOST"),
@@ -20,5 +18,5 @@ def main() -> None:
         db=os.getenv("DB_NAME"),
     )  # type: ignore
     database.prepare.prepare(engine)
-    bot_ = bot.create_bot(os.getenv("TG_TOKEN"), con)  # type: ignore
+    bot_ = bot.create_bot(os.getenv("TG_TOKEN"), engine)  # type: ignore
     bot_.infinity_polling()

src/bot/__init__.py

@@ -0,0 +1,34 @@
+import functools
+
+import mariadb
+import telebot
+from sqlalchemy.future import Engine
+
+from . import handlers
+
+__all__ = ["handlers"]
+
+
+def create_bot(token: str, engine: mariadb.Connection) -> telebot.TeleBot:
+    bot = telebot.TeleBot(token)
+    bot.register_message_handler(
+        functools.partial(handlers.set_master_password, bot, engine),
+        commands=["set_master_pass"],
+    )
+    bot.register_message_handler(
+        functools.partial(handlers.get_account, bot, engine), commands=["get_account"]
+    )
+    bot.register_message_handler(
+        functools.partial(handlers.get_accounts, bot, engine), commands=["get_accounts"]
+    )
+    bot.register_message_handler(
+        functools.partial(handlers.add_record, bot, engine), commands=["add_account"]
+    )
+    bot.register_message_handler(
+        functools.partial(handlers.delete_all, bot, engine), commands=["delete_all"]
+    )
+    bot.register_message_handler(
+        functools.partial(handlers.reset_master_pass, bot, engine),
+        commands=["reset_master_pass"],
+    )
+    return bot

src/bot/handlers.py

@@ -0,0 +1,142 @@
+import gc
+import shlex
+import time
+
+import telebot
+from sqlalchemy.future import Engine
+
+from .. import cryptography, database
+
+
+def _send_tmp_message(
+    bot: telebot.TeleBot, chat_id: telebot.types.Message, text: str, timeout: int = 5
+) -> None:
+    bot_mes = bot.send_message(chat_id, text)
+    time.sleep(timeout)
+    bot.delete_message(chat_id, bot_mes.id)
+
+
+def add_record(
+    bot: telebot.TeleBot, engine: Engine, mes: telebot.types.Message
+) -> None:
+    data = shlex.split(mes.text)
+    bot.delete_message(mes.chat.id, mes.id)
+    if len(data) != 5:
+        return _send_tmp_message(bot, mes.chat.id, "Неправильное кол-во аргументов")
+
+    master_password = data[4]
+    master_password_from_db = database.get.get_master_pass(engine, mes.from_user.id)
+    if master_password is None:
+        return _send_tmp_message(bot, mes.chat.id, "Нет мастер пароля")
+
+    master_salt, hash_pass = master_password_from_db
+    if (
+        cryptography.master_pass.encrypt_master_pass_known_salt(
+            master_password, master_salt
+        )
+        != hash_pass
+    ):
+        return _send_tmp_message(bot, mes.chat.id, "Не подходит главный пароль")
+
+    enc_login, enc_pass, salt = cryptography.other_accounts.encrypt_account_info(
+        data[2], data[3], master_password.encode("utf-8")
+    )
+    result = database.add.add_account(
+        engine, mes.from_user.id, data[1], salt, enc_login, enc_pass
+    )
+    _send_tmp_message(
+        bot,
+        mes.chat.id,
+        "Успех" if result else "Ошибка, вероятно аккаунт с таким же именем существует",
+    )
+    del data, master_password, mes
+    gc.collect()
+
+
+def get_accounts(
+    bot: telebot.TeleBot, engine: Engine, mes: telebot.types.Message
+) -> None:
+    accounts = database.get.get_accounts(engine, mes.from_user.id)
+    bot.delete_message(mes.chat.id, mes.id)
+
+    return _send_tmp_message(
+        bot,
+        mes.chat.id,
+        "Ваши аккаунты:\n" + "\n".join(accounts) if accounts else "У вас нет аккаунтов",
+    )
+
+
+def set_master_password(
+    bot: telebot.TeleBot, engine: Engine, mes: telebot.types.Message
+) -> None:
+    data = shlex.split(mes.text)
+    bot.delete_message(mes.chat.id, mes.id)
+
+    if database.get.get_master_pass(engine, mes.from_user.id) is not None:
+        return _send_tmp_message(bot, mes.chat.id, "У вас уже установлен мастер пароль")
+
+    if len(data) != 2:
+        return _send_tmp_message(bot, mes.chat.id, "Неправильное количество аргументов")
+
+    pass_, salt = cryptography.master_pass.encrypt_master_pass(data[1])
+    result = database.add.add_master_pass(engine, mes.from_user.id, salt, pass_)
+    _send_tmp_message(
+        bot,
+        mes.chat.id,
+        "Успех" if result else "Ошибка, вероятно аккаунт с таким же именем существует",
+    )
+
+    del data, mes
+    gc.collect()
+
+
+def get_account(
+    bot: telebot.TeleBot, engine: Engine, mes: telebot.types.Message
+) -> None:
+    data = shlex.split(mes.text)
+    bot.delete_message(mes.chat.id, mes.id)
+
+    if len(data) != 3:
+        return _send_tmp_message(bot, mes.chat.id, "Неправильное количество аргументов")
+
+    if data[1] not in database.get.get_accounts(engine, mes.from_user.id):
+        return _send_tmp_message(bot, mes.chat.id, "Нет такого аккаунта")
+
+    master_salt, hash_pass = database.get.get_master_pass(engine, mes.from_user.id)
+    if (
+        cryptography.master_pass.encrypt_master_pass_known_salt(data[2], master_salt)
+        != hash_pass
+    ):
+        return _send_tmp_message(bot, mes.chat.id, "Не подходит главный пароль")
+
+    salt, enc_login, enc_pass = database.get.get_account_info(
+        engine, mes.from_user.id, data[1]
+    )
+    login, passwd = cryptography.other_accounts.decrypt_account_info(
+        enc_login, enc_pass, data[2].encode("utf-8"), salt
+    )
+    bot.send_message(mes.chat.id, f"Логин:\n{login}\nПароль:\n{passwd}")
+
+    del data, mes, passwd, login
+    gc.collect()
+
+
+def delete_all(
+    bot: telebot.TeleBot, engine: Engine, mes: telebot.types.Message
+) -> None:
+    database.delete.purge_accounts(engine, mes.from_user.id)
+    database.delete.delete_master_pass(engine, mes.from_user.id)
+    bot.send_message(mes.chat.id, "Все ваши данные удалены из базы данных")
+
+
+def reset_master_pass(
+    bot: telebot.TeleBot, engine: Engine, mes: telebot.types.Message
+) -> None:
+    data = shlex.split(mes.text)
+    master_password = data[1]
+    enc_pass, salt = cryptography.master_pass.encrypt_master_pass(master_password)
+    database.delete.purge_accounts(engine, mes.from_user.id)
+    database.change.change_master_pass(engine, mes.from_user.id, salt, enc_pass)
+    _send_tmp_message(
+        bot, mes.chat.id, "Все ваши аккаунты удалены, а мастер пароль изменён"
+    )

src/database/__init__.py

@@ -1,3 +1,3 @@
-from . import add, delete, get, models, prepare
+from . import add, delete, get, models, prepare, change
 
-__all__ = ["add", "delete", "get", "models", "prepare"]
+__all__ = ["add", "delete", "get", "models", "prepare", "change"]

src/database/add.py

@@ -1,5 +1,5 @@
 import sqlmodel
-import mariadb
+from sqlalchemy.exc import IntegrityError
 from sqlalchemy.future import Engine
 
 from . import models
@@ -21,7 +21,7 @@ def add_account(
         with sqlmodel.Session(engine) as session:
             session.add(account)
             session.commit()
-    except Exception:
+    except IntegrityError:
         return False
     else:
         return True
@@ -34,7 +34,7 @@ def add_master_pass(engine: Engine, user_id: int, salt: bytes, passwd: bytes) ->
         with sqlmodel.Session(engine) as session:
             session.add(master_pass)
             session.commit()
-    except Exception:
+    except IntegrityError:
         return False
     else:
         return True

src/database/change.py

@@ -0,0 +1,16 @@
+import sqlmodel
+from sqlalchemy.future import Engine
+
+from . import models
+
+
+def change_master_pass(
+    engine: Engine, user_id: int, salt: bytes, passwd: bytes
+) -> None:
+    statement = sqlmodel.update(
+        models.MasterPass,
+        models.MasterPass.user_id == user_id,
+        sqlmodel.values(salt=salt, passwd=passwd),
+    )
+    with sqlmodel.Session(engine) as session:
+        session.exec(statement)

src/database/delete.py

@@ -0,0 +1,18 @@
+import sqlmodel
+from sqlalchemy.future import Engine
+
+from . import models
+
+
+def purge_accounts(engine: Engine, user_id: int) -> None:
+    statement = sqlmodel.delete(models.Account).where(models.Account.user_id == user_id)
+    with sqlmodel.Session(engine) as session:
+        session.exec(statement)
+
+
+def delete_master_pass(engine: Engine, user_id: int) -> None:
+    statement = sqlmodel.delete(models.MasterPass).where(
+        models.MasterPass.user_id == user_id
+    )
+    with sqlmodel.Session(engine) as session:
+        session.exec(statement)

src/database/get.py

@@ -22,7 +22,7 @@ def get_accounts(engine: Engine, user_id: int) -> list[str]:
     statement = sqlmodel.select(models.Account).where(models.Account.user_id == user_id)
     with sqlmodel.Session(engine) as session:
         result = session.exec(statement)
-    return [account.name for account in result]
+        return [account.name for account in result]
 
 
 def get_account_info(
@@ -34,6 +34,6 @@ def get_account_info(
     )
     with sqlmodel.Session(engine) as session:
         result = session.exec(statement).first()
-    if result is None:
-        return
-    return (result.salt, result.enc_login, result.enc_pass)
+        if result is None:
+            return
+        return (result.salt, result.enc_login, result.enc_pass)

src/database/prepare.py

@@ -13,4 +13,7 @@ def get_engine(host: str, user: str, passwd: str, db: str) -> Engine:
 
 
 def prepare(engine: Engine) -> None:
-    sqlmodel.SQLModel.metadata.create_all(engine, [models.Account, models.MasterPass])
+    sqlmodel.SQLModel.metadata.create_all(
+        engine,
+        # [models.Account, models.MasterPass]
+    )