siftlode/backend/alembic/versions/0053_user_session_epoch.py

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"""User.session_epoch for server-side session revocation (SA4)
A monotonic per-user counter. A signed session cookie records the epoch it was minted under;
current_user rejects any cookie whose epoch is stale. Bumped on password reset, password change,
or "log out everywhere" so a stolen/copied client-side cookie dies on those events instead of
staying valid until it expires. Existing rows default to 0 (matching a fresh cookie's absent/0 epoch).
"""
from typing import Sequence, Union
import sqlalchemy as sa
from alembic import op
revision: str = "0053_user_session_epoch"
down_revision: Union[str, None] = "0052_plex_show_meta"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None
def upgrade() -> None:
op.add_column(
"users",
sa.Column("session_epoch", sa.Integer(), nullable=False, server_default="0"),
)
def downgrade() -> None:
op.drop_column("users", "session_epoch")