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@@ -1,174 +0,0 @@
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-import redis
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-from redis.connection import SSLConnection, Connection
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-from flask import request
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-from flask_session import Session, SqlAlchemySessionInterface, RedisSessionInterface
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-from flask_session.sessions import total_seconds
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-from itsdangerous import want_bytes
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-
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-from extensions.ext_database import db
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-
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-sess = Session()
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-
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-
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-def init_app(app):
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- sqlalchemy_session_interface = CustomSqlAlchemySessionInterface(
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- app,
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- db,
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- app.config.get('SESSION_SQLALCHEMY_TABLE', 'sessions'),
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- app.config.get('SESSION_KEY_PREFIX', 'session:'),
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- app.config.get('SESSION_USE_SIGNER', False),
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- app.config.get('SESSION_PERMANENT', True)
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- )
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-
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- session_type = app.config.get('SESSION_TYPE')
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- if session_type == 'sqlalchemy':
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- app.session_interface = sqlalchemy_session_interface
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- elif session_type == 'redis':
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- connection_class = Connection
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- if app.config.get('SESSION_REDIS_USE_SSL', False):
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- connection_class = SSLConnection
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-
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- sess_redis_client = redis.Redis()
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- sess_redis_client.connection_pool = redis.ConnectionPool(**{
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- 'host': app.config.get('SESSION_REDIS_HOST', 'localhost'),
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- 'port': app.config.get('SESSION_REDIS_PORT', 6379),
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- 'username': app.config.get('SESSION_REDIS_USERNAME', None),
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- 'password': app.config.get('SESSION_REDIS_PASSWORD', None),
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- 'db': app.config.get('SESSION_REDIS_DB', 2),
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- 'encoding': 'utf-8',
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- 'encoding_errors': 'strict',
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- 'decode_responses': False
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- }, connection_class=connection_class)
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-
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- app.extensions['session_redis'] = sess_redis_client
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-
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- app.session_interface = CustomRedisSessionInterface(
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- sess_redis_client,
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- app.config.get('SESSION_KEY_PREFIX', 'session:'),
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- app.config.get('SESSION_USE_SIGNER', False),
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- app.config.get('SESSION_PERMANENT', True)
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- )
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-
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-
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-class CustomSqlAlchemySessionInterface(SqlAlchemySessionInterface):
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-
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- def __init__(
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- self,
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- app,
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- db,
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- table,
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- key_prefix,
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- use_signer=False,
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- permanent=True,
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- sequence=None,
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- autodelete=False,
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- ):
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- if db is None:
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- from flask_sqlalchemy import SQLAlchemy
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-
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- db = SQLAlchemy(app)
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- self.db = db
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- self.key_prefix = key_prefix
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- self.use_signer = use_signer
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- self.permanent = permanent
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- self.autodelete = autodelete
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- self.sequence = sequence
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- self.has_same_site_capability = hasattr(self, "get_cookie_samesite")
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-
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- class Session(self.db.Model):
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- __tablename__ = table
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-
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- if sequence:
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- id = self.db.Column( # noqa: A003, VNE003, A001
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- self.db.Integer, self.db.Sequence(sequence), primary_key=True
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- )
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- else:
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- id = self.db.Column( # noqa: A003, VNE003, A001
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- self.db.Integer, primary_key=True
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- )
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-
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- session_id = self.db.Column(self.db.String(255), unique=True)
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- data = self.db.Column(self.db.LargeBinary)
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- expiry = self.db.Column(self.db.DateTime)
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-
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- def __init__(self, session_id, data, expiry):
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- self.session_id = session_id
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- self.data = data
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- self.expiry = expiry
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-
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- def __repr__(self):
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- return f"<Session data {self.data}>"
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-
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- self.sql_session_model = Session
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-
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- def save_session(self, *args, **kwargs):
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- if request.blueprint == 'service_api':
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- return
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- elif request.method == 'OPTIONS':
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- return
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- elif request.endpoint and request.endpoint == 'health':
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- return
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- return super().save_session(*args, **kwargs)
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-
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-
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-class CustomRedisSessionInterface(RedisSessionInterface):
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-
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- def save_session(self, app, session, response):
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- if request.blueprint == 'service_api':
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- return
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- elif request.method == 'OPTIONS':
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- return
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- elif request.endpoint and request.endpoint == 'health':
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- return
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-
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- if not self.should_set_cookie(app, session):
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- return
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- domain = self.get_cookie_domain(app)
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- path = self.get_cookie_path(app)
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- if not session:
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- if session.modified:
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- self.redis.delete(self.key_prefix + session.sid)
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- response.delete_cookie(
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- app.config["SESSION_COOKIE_NAME"], domain=domain, path=path
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- )
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- return
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-
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- # Modification case. There are upsides and downsides to
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- # emitting a set-cookie header each request. The behavior
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- # is controlled by the :meth:`should_set_cookie` method
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- # which performs a quick check to figure out if the cookie
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- # should be set or not. This is controlled by the
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- # SESSION_REFRESH_EACH_REQUEST config flag as well as
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- # the permanent flag on the session itself.
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- # if not self.should_set_cookie(app, session):
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- # return
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- conditional_cookie_kwargs = {}
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- httponly = self.get_cookie_httponly(app)
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- secure = self.get_cookie_secure(app)
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- if self.has_same_site_capability:
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- conditional_cookie_kwargs["samesite"] = self.get_cookie_samesite(app)
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- expires = self.get_expiration_time(app, session)
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-
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- if session.permanent:
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- value = self.serializer.dumps(dict(session))
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- if value is not None:
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- self.redis.setex(
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- name=self.key_prefix + session.sid,
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- value=value,
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- time=total_seconds(app.permanent_session_lifetime),
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- )
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-
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- if self.use_signer:
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- session_id = self._get_signer(app).sign(want_bytes(session.sid)).decode("utf-8")
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- else:
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- session_id = session.sid
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- response.set_cookie(
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- app.config["SESSION_COOKIE_NAME"],
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- session_id,
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- expires=expires,
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- httponly=httponly,
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- domain=domain,
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- path=path,
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- secure=secure,
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- **conditional_cookie_kwargs,
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- )
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