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from flask_sqlalchemy import SQLAlchemy
from CTFd.models import Users
import time
import secrets

db = SQLAlchemy()


class OIDCConfig(db.Model):
    __tablename__ = "oidc_config"

    id = db.Column(db.Integer, primary_key=True)
    key = db.Column(db.String(64), unique=True, nullable=False)
    value = db.Column(db.Text, nullable=False)
    created = db.Column(db.Integer, default=lambda: int(time.time()))


class OIDCClient(db.Model):
    __tablename__ = 'oidc_client'

    client_id = db.Column(db.String(32), primary_key=True)
    client_secret = db.Column(db.String(128), nullable=True)
    redirect_uris = db.Column(db.Text, nullable=False)
    pkce = db.Column(db.Boolean, default=False, nullable=False)
    created = db.Column(db.Integer, default=lambda: int(time.time()))


class OIDCAuthCode(db.Model):
    __tablename__ = 'oidc_auth_code'

    id = db.Column(db.Integer, primary_key=True)
    code = db.Column(db.String(128), unique=True, nullable=False)
    user_id = db.Column(db.Integer, db.ForeignKey(Users.id, ondelete='CASCADE'), nullable=False)
    client_id = db.Column(db.String(32), db.ForeignKey(OIDCClient.client_id, ondelete='CASCADE'), nullable=False)
    redirect_uri = db.Column(db.Text, nullable=False)
    code_challenge = db.Column(db.String(128), nullable=True)
    exp = db.Column(db.Integer, nullable=False)

    user = db.relationship(Users, backref=db.backref("oidc_auth_code", uselist=False, lazy="select"))
    client = db.relationship(OIDCClient, backref=db.backref("oidc_auth_code", uselist=False, lazy="select"))


class OIDCRefreshToken(db.Model):
    __tablename__ = 'oidc_refresh_token'

    id = db.Column(db.Integer, primary_key=True)
    refresh_token = db.Column(db.String(128), unique=True, nullable=False)
    user_id = db.Column(db.Integer, db.ForeignKey(Users.id, ondelete='CASCADE'), nullable=False)
    client_id = db.Column(db.String(32), db.ForeignKey(OIDCClient.client_id, ondelete='CASCADE'), nullable=False)
    exp = db.Column(db.Integer, nullable=False)

    user = db.relationship(Users, backref=db.backref("oidc_refresh_token", uselist=False, lazy="select"))
    client = db.relationship(OIDCClient, backref=db.backref("oidc_refresh_token", uselist=False, lazy="select"))


class OIDCAccessToken(db.Model):
    __tablename__ = 'oidc_access_token'

    id = db.Column(db.Integer, primary_key=True)
    access_token = db.Column(db.String(128), unique=True, nullable=False)
    user_id = db.Column(db.Integer, db.ForeignKey(Users.id, ondelete='CASCADE'), nullable=False)
    client_id = db.Column(db.String(32), db.ForeignKey(OIDCClient.client_id, ondelete='CASCADE'), nullable=False)
    exp = db.Column(db.Integer, nullable=False)

    user = db.relationship(Users, backref=db.backref("oidc_access_token", uselist=False, lazy="select"))
    client = db.relationship(OIDCClient, backref=db.backref("oidc_access_token", uselist=False, lazy="select"))


class OIDCKey(db.Model):
    __tablename__ = 'oidc_key'

    id = db.Column(db.Integer, primary_key=True)
    kid = db.Column(db.String(32), unique=True, nullable=False)
    private_pem = db.Column(db.Text, nullable=False)
    public_pem = db.Column(db.Text, nullable=False)
    created = db.Column(db.Integer, default=lambda: int(time.time()))
    client_id = db.Column(db.String(32), db.ForeignKey(OIDCClient.client_id, ondelete='CASCADE'), nullable=False)

    client = db.relationship(OIDCClient, backref=db.backref("oidc_key", uselist=False, lazy="select"))