mirror of
https://github.com/LonamiWebs/Telethon.git
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Remove SQLAlchemy session
This commit is contained in:
Lonami Exo
parent
6f820cce97
commit
32fd64d655
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@ -1,4 +1,3 @@
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cryptg
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pysocks
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hachoir3
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sqlalchemy
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3
setup.py
3
setup.py
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@ -156,8 +156,7 @@ def main():
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install_requires=['pyaes', 'rsa',
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'typing' if version_info < (3, 5) else ""],
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extras_require={
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'cryptg': ['cryptg'],
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'sqlalchemy': ['sqlalchemy']
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'cryptg': ['cryptg']
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}
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)
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@ -1,4 +1,3 @@
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from .abstract import Session
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from .memory import MemorySession
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from .sqlite import SQLiteSession
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from .sqlalchemy import AlchemySessionContainer, AlchemySession
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@ -1,236 +0,0 @@
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try:
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy import Column, String, Integer, LargeBinary, orm
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import sqlalchemy as sql
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except ImportError:
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sql = None
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from .memory import MemorySession, _SentFileType
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from .. import utils
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from ..crypto import AuthKey
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from ..tl.types import (
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InputPhoto, InputDocument, PeerUser, PeerChat, PeerChannel
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)
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LATEST_VERSION = 1
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class AlchemySessionContainer:
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def __init__(self, engine=None, session=None, table_prefix='',
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table_base=None, manage_tables=True):
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if not sql:
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raise ImportError('SQLAlchemy not imported')
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if isinstance(engine, str):
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engine = sql.create_engine(engine)
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self.db_engine = engine
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if not session:
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db_factory = orm.sessionmaker(bind=self.db_engine)
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self.db = orm.scoping.scoped_session(db_factory)
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else:
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self.db = session
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table_base = table_base or declarative_base()
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(self.Version, self.Session, self.Entity,
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self.SentFile) = self.create_table_classes(self.db, table_prefix,
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table_base)
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if manage_tables:
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table_base.metadata.bind = self.db_engine
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if not self.db_engine.dialect.has_table(self.db_engine,
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self.Version.__tablename__):
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table_base.metadata.create_all()
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self.db.add(self.Version(version=LATEST_VERSION))
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self.db.commit()
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else:
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self.check_and_upgrade_database()
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@staticmethod
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def create_table_classes(db, prefix, Base):
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class Version(Base):
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query = db.query_property()
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__tablename__ = '{prefix}version'.format(prefix=prefix)
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version = Column(Integer, primary_key=True)
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class Session(Base):
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query = db.query_property()
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__tablename__ = '{prefix}sessions'.format(prefix=prefix)
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session_id = Column(String, primary_key=True)
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dc_id = Column(Integer, primary_key=True)
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server_address = Column(String)
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port = Column(Integer)
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auth_key = Column(LargeBinary)
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class Entity(Base):
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query = db.query_property()
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__tablename__ = '{prefix}entities'.format(prefix=prefix)
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session_id = Column(String, primary_key=True)
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id = Column(Integer, primary_key=True)
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hash = Column(Integer, nullable=False)
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username = Column(String)
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phone = Column(Integer)
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name = Column(String)
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class SentFile(Base):
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query = db.query_property()
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__tablename__ = '{prefix}sent_files'.format(prefix=prefix)
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session_id = Column(String, primary_key=True)
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md5_digest = Column(LargeBinary, primary_key=True)
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file_size = Column(Integer, primary_key=True)
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type = Column(Integer, primary_key=True)
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id = Column(Integer)
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hash = Column(Integer)
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return Version, Session, Entity, SentFile
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def check_and_upgrade_database(self):
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row = self.Version.query.all()
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version = row[0].version if row else 1
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if version == LATEST_VERSION:
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return
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self.Version.query.delete()
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# Implement table schema updates here and increase version
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self.db.add(self.Version(version=version))
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self.db.commit()
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def new_session(self, session_id):
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return AlchemySession(self, session_id)
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def list_sessions(self):
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return
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def save(self):
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self.db.commit()
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class AlchemySession(MemorySession):
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def __init__(self, container, session_id):
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super().__init__()
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self.container = container
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self.db = container.db
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self.Version, self.Session, self.Entity, self.SentFile = (
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container.Version, container.Session, container.Entity,
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container.SentFile)
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self.session_id = session_id
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self._load_session()
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def _load_session(self):
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sessions = self._db_query(self.Session).all()
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session = sessions[0] if sessions else None
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if session:
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self._dc_id = session.dc_id
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self._server_address = session.server_address
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self._port = session.port
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self._auth_key = AuthKey(data=session.auth_key)
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def clone(self, to_instance=None):
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return super().clone(MemorySession())
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def set_dc(self, dc_id, server_address, port):
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super().set_dc(dc_id, server_address, port)
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self._update_session_table()
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sessions = self._db_query(self.Session).all()
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session = sessions[0] if sessions else None
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if session and session.auth_key:
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self._auth_key = AuthKey(data=session.auth_key)
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else:
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self._auth_key = None
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@MemorySession.auth_key.setter
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def auth_key(self, value):
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self._auth_key = value
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self._update_session_table()
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def _update_session_table(self):
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self.Session.query.filter(
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self.Session.session_id == self.session_id).delete()
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new = self.Session(session_id=self.session_id, dc_id=self._dc_id,
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server_address=self._server_address,
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port=self._port,
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auth_key=(self._auth_key.key
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if self._auth_key else b''))
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self.db.merge(new)
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def _db_query(self, dbclass, *args):
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return dbclass.query.filter(
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dbclass.session_id == self.session_id, *args
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)
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def save(self):
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self.container.save()
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def close(self):
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# Nothing to do here, connection is managed by AlchemySessionContainer.
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pass
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def delete(self):
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self._db_query(self.Session).delete()
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self._db_query(self.Entity).delete()
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self._db_query(self.SentFile).delete()
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def _entity_values_to_row(self, id, hash, username, phone, name):
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return self.Entity(session_id=self.session_id, id=id, hash=hash,
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username=username, phone=phone, name=name)
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def process_entities(self, tlo):
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rows = self._entities_to_rows(tlo)
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if not rows:
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return
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for row in rows:
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self.db.merge(row)
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self.save()
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def get_entity_rows_by_phone(self, key):
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row = self._db_query(self.Entity,
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self.Entity.phone == key).one_or_none()
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return (row.id, row.hash) if row else None
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def get_entity_rows_by_username(self, key):
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row = self._db_query(self.Entity,
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self.Entity.username == key).one_or_none()
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return (row.id, row.hash) if row else None
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def get_entity_rows_by_name(self, key):
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row = self._db_query(self.Entity,
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self.Entity.name == key).one_or_none()
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return (row.id, row.hash) if row else None
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def get_entity_rows_by_id(self, key, exact=True):
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if exact:
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query = self._db_query(self.Entity, self.Entity.id == key)
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else:
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ids = (
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utils.get_peer_id(PeerUser(key)),
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utils.get_peer_id(PeerChat(key)),
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utils.get_peer_id(PeerChannel(key))
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)
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query = self._db_query(self.Entity, self.Entity.id in ids)
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row = query.one_or_none()
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return (row.id, row.hash) if row else None
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def get_file(self, md5_digest, file_size, cls):
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row = self._db_query(self.SentFile,
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self.SentFile.md5_digest == md5_digest,
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self.SentFile.file_size == file_size,
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self.SentFile.type == _SentFileType.from_type(
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cls).value).one_or_none()
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return (row.id, row.hash) if row else None
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def cache_file(self, md5_digest, file_size, instance):
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if not isinstance(instance, (InputDocument, InputPhoto)):
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raise TypeError('Cannot cache %s instance' % type(instance))
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self.db.merge(
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self.SentFile(session_id=self.session_id, md5_digest=md5_digest,
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type=_SentFileType.from_type(type(instance)).value,
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id=instance.id, hash=instance.access_hash))
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self.save()
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