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139 lines
No EOL
4 KiB
Python
139 lines
No EOL
4 KiB
Python
import sqlalchemy.exc
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from sqlalchemy import create_engine, Column, Integer, String, Boolean, DateTime, ForeignKey
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from sqlalchemy.orm import sessionmaker, relationship
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from sqlalchemy.ext.declarative import declarative_base
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import bcrypt
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class NoUsersMatchingError(Exception):
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pass
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class InvalidPasswordError(Exception):
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pass
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# Initialize the database
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engine = create_engine("sqlite:///db.sqlite")
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Base = declarative_base()
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Session = sessionmaker(bind=engine)
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class User(Base):
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__tablename__ = "members"
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id = Column(Integer, primary_key=True)
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username = Column(String, unique=True, nullable=False)
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password = Column(String, nullable=False)
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telegram_id = Column(Integer, unique=True)
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discord_id = Column(Integer, unique=True)
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def __str__(self):
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return self.username
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def __repr__(self):
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return f"<User {self.id}: {self.username}>"
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class Diario(Base):
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__tablename__ = "diario"
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id = Column(Integer, primary_key=True)
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text = Column(String, nullable=False)
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date = Column(DateTime, nullable=False)
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def __repr__(self):
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return f"<Diario {self.date} {self.text}>"
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Base.metadata.create_all(engine)
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def create_user(username, password):
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"""Create a new user and add it to the database."""
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# Create a new session
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session = Session()
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# Hash the password with bcrypt
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hashed_password = bcrypt.hashpw(password.encode("utf8"), bcrypt.gensalt())
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# Create a new user
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new_member = User(username=username, password=hashed_password)
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# Add the newly created member to the session
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session.add(new_member)
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# Commit the changes
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session.commit()
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# TODO: check for vulnerabilities
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def change_password(username, newpassword):
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# Create a new session
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session = Session()
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# Hash the new password using bcrypt
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hashed_password = bcrypt.hashpw(newpassword.encode("utf8"), bcrypt.gensalt())
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# Find the user entry
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users = session.query(User).filter_by(username=username).all()
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if len(users) == 0:
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raise NoUsersMatchingError("No users with the specified username found.")
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db_user = users[0]
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# Change the password and commit
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db_user.password = hashed_password
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session.commit()
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def login(username, password, enable_exceptions=False):
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"""Try to login using the database password.
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The session is always returned, while the user object is returned if the login is successful."""
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# Create a new session
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session = Session()
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# Find the matching user
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db_user = session.query(User).filter_by(username=username).first()
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# Verify that the user exists
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if db_user is not None:
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return session, None
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# Test the password and return the session and the user if successful
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if bcrypt.hashpw(password.encode("utf8"), db_user.password) == db_user.password:
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return session, db_user
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else:
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if enable_exceptions:
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raise InvalidPasswordError("The specified password doesn't match the user's.")
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else:
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return session, None
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def find_user(username):
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"""Find the user with the specified username and return the session and the user object."""
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# Create a new session
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session = Session()
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# Find the matching user
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db_user = session.query(User).filter_by(username=username).first()
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# Return the session and the user
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return session, db_user
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def migrate_diario():
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import datetime
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session = Session()
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file = open("diario.txt", encoding="utf8")
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for row in file:
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entry = row.split("|", 1)
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new = Diario()
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new.date = datetime.datetime.fromtimestamp(int(entry[0]))
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new.text = entry[1]
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session.add(new)
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session.commit()
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def new_diario_entry(dt, text):
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# Create a new session
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session = Session()
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# Create a new diario entry
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entry = Diario()
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entry.date = dt
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entry.text = text
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# Add the entry to the database
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session.add(entry)
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# Commit the change
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session.commit()
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session = Session()
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if len(session.query(User).all()) < 1:
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# Look! A plaintext password!
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create_user("steffo", "v3n0m-sn4k3") |