uffd/migrations/versions/11ecc8f1ac3b_mysql_compat_fixes.py

+"""MySQL compat fixes
+
+Revision ID: 11ecc8f1ac3b
+Revises: bf71799b7b9e
+Create Date: 2021-09-13 04:15:07.479295
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = '11ecc8f1ac3b'
+down_revision = 'bf71799b7b9e'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	table = sa.Table('device_login_confirmation', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('initiation_id', sa.Integer(), nullable=False),
+		sa.Column('user_dn', sa.String(length=128), nullable=False),
+		sa.Column('code0', sa.String(length=32), nullable=False),
+		sa.Column('code1', sa.String(length=32), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_device_login_confirmation')),
+	)
+	with op.batch_alter_table(table.name, copy_from=table, recreate='always') as batch_op:
+		pass
+	table = sa.Table('invite_signup', meta,
+		sa.Column('id', sa.Integer(), nullable=False),
+		sa.Column('invite_id', sa.Integer(), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_invite_signup'))
+	)
+	with op.batch_alter_table(table.name, copy_from=table, recreate='always') as batch_op:
+		pass
+	meta = sa.MetaData(bind=op.get_bind())
+	# Previously "fk_device_login_confirmation_initiation_id_" was named
+	# "fk_device_login_confirmation_initiation_id_device_login_initiation"
+	# but this was too long for MySQL.
+	table = sa.Table('device_login_confirmation', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('initiation_id', sa.Integer(), nullable=False),
+		sa.Column('user_dn', sa.String(length=128), nullable=False),
+		sa.Column('code0', sa.String(length=32), nullable=False),
+		sa.Column('code1', sa.String(length=32), nullable=False),
+		sa.ForeignKeyConstraint(['initiation_id'], ['device_login_initiation.id'], name='fk_device_login_confirmation_initiation_id_'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_device_login_confirmation')),
+		sa.UniqueConstraint('initiation_id', 'code0', name='uq_device_login_confirmation_initiation_id_code0'),
+		sa.UniqueConstraint('initiation_id', 'code1', name='uq_device_login_confirmation_initiation_id_code1'),
+		sa.UniqueConstraint('user_dn', name=op.f('uq_device_login_confirmation_user_dn'))
+	)
+	with op.batch_alter_table(table.name, copy_from=table, recreate='always') as batch_op:
+		pass
+
+	# Previously "fk_invite_signup_id_signup" was named
+	# "fk_invite_signup_signup_id_signup" by mistake.
+	table = sa.Table('invite_signup', meta,
+		sa.Column('id', sa.Integer(), nullable=False),
+		sa.Column('invite_id', sa.Integer(), nullable=False),
+		sa.ForeignKeyConstraint(['id'], ['signup.id'], name=op.f('fk_invite_signup_id_signup')),
+		sa.ForeignKeyConstraint(['invite_id'], ['invite.id'], name=op.f('fk_invite_signup_invite_id_invite')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_invite_signup'))
+	)
+	with op.batch_alter_table(table.name, copy_from=table, recreate='always') as batch_op:
+		pass
+
+def downgrade():
+	pass

uffd/migrations/versions/23293f32b503_deactivate_users.py

+"""Deactivate users
+
+Revision ID: 23293f32b503
+Revises: e249233e2a31
+Create Date: 2022-11-10 02:06:27.766520
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = '23293f32b503'
+down_revision = 'e249233e2a31'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	with op.batch_alter_table('service', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('hide_deactivated_users', sa.Boolean(create_constraint=True), nullable=False, server_default=sa.false()))
+	service = sa.Table('service', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('name', sa.String(length=255), nullable=False),
+		sa.Column('limit_access', sa.Boolean(create_constraint=True), nullable=False),
+		sa.Column('access_group_id', sa.Integer(), nullable=True),
+		sa.Column('remailer_mode', sa.Enum('DISABLED', 'ENABLED_V1', 'ENABLED_V2', create_constraint=True, name='remailermode'), nullable=False),
+		sa.Column('enable_email_preferences', sa.Boolean(create_constraint=True), nullable=False),
+		sa.Column('hide_deactivated_users', sa.Boolean(create_constraint=True), nullable=False, server_default=sa.false()),
+		sa.ForeignKeyConstraint(['access_group_id'], ['group.id'], name=op.f('fk_service_access_group_id_group'), onupdate='CASCADE', ondelete='SET NULL'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_service')),
+		sa.UniqueConstraint('name', name=op.f('uq_service_name'))
+	)
+	with op.batch_alter_table('service', copy_from=service) as batch_op:
+		batch_op.alter_column('hide_deactivated_users', server_default=None)
+	with op.batch_alter_table('user', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('is_deactivated', sa.Boolean(create_constraint=True), nullable=False, server_default=sa.false()))
+	user = sa.Table('user', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('unix_uid', sa.Integer(), nullable=False),
+		sa.Column('loginname', sa.String(length=32), nullable=False),
+		sa.Column('displayname', sa.String(length=128), nullable=False),
+		sa.Column('primary_email_id', sa.Integer(), nullable=False),
+		sa.Column('recovery_email_id', sa.Integer(), nullable=True),
+		sa.Column('pwhash', sa.Text(), nullable=True),
+		sa.Column('is_service_user', sa.Boolean(create_constraint=True), nullable=False),
+		sa.Column('is_deactivated', sa.Boolean(create_constraint=True), nullable=False, server_default=sa.false()),
+		sa.ForeignKeyConstraint(['primary_email_id'], ['user_email.id'], name=op.f('fk_user_primary_email_id_user_email'), onupdate='CASCADE'),
+		sa.ForeignKeyConstraint(['recovery_email_id'], ['user_email.id'], name=op.f('fk_user_recovery_email_id_user_email'), onupdate='CASCADE', ondelete='SET NULL'),
+		sa.ForeignKeyConstraint(['unix_uid'], ['uid_allocation.id'], name=op.f('fk_user_unix_uid_uid_allocation')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_user')),
+		sa.UniqueConstraint('loginname', name=op.f('uq_user_loginname')),
+		sa.UniqueConstraint('unix_uid', name=op.f('uq_user_unix_uid'))
+	)
+	with op.batch_alter_table('user', copy_from=user) as batch_op:
+		batch_op.alter_column('is_deactivated', server_default=None)
+
+def downgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	user = sa.Table('user', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('unix_uid', sa.Integer(), nullable=False),
+		sa.Column('loginname', sa.String(length=32), nullable=False),
+		sa.Column('displayname', sa.String(length=128), nullable=False),
+		sa.Column('primary_email_id', sa.Integer(), nullable=False),
+		sa.Column('recovery_email_id', sa.Integer(), nullable=True),
+		sa.Column('pwhash', sa.Text(), nullable=True),
+		sa.Column('is_service_user', sa.Boolean(create_constraint=True), nullable=False),
+		sa.Column('is_deactivated', sa.Boolean(create_constraint=True), nullable=False),
+		sa.ForeignKeyConstraint(['primary_email_id'], ['user_email.id'], name=op.f('fk_user_primary_email_id_user_email'), onupdate='CASCADE'),
+		sa.ForeignKeyConstraint(['recovery_email_id'], ['user_email.id'], name=op.f('fk_user_recovery_email_id_user_email'), onupdate='CASCADE', ondelete='SET NULL'),
+		sa.ForeignKeyConstraint(['unix_uid'], ['uid_allocation.id'], name=op.f('fk_user_unix_uid_uid_allocation')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_user')),
+		sa.UniqueConstraint('loginname', name=op.f('uq_user_loginname')),
+		sa.UniqueConstraint('unix_uid', name=op.f('uq_user_unix_uid'))
+	)
+	with op.batch_alter_table('user', schema=None) as batch_op:
+		batch_op.drop_column('is_deactivated')
+	service = sa.Table('service', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('name', sa.String(length=255), nullable=False),
+		sa.Column('limit_access', sa.Boolean(create_constraint=True), nullable=False),
+		sa.Column('access_group_id', sa.Integer(), nullable=True),
+		sa.Column('remailer_mode', sa.Enum('DISABLED', 'ENABLED_V1', 'ENABLED_V2', create_constraint=True, name='remailermode'), nullable=False),
+		sa.Column('enable_email_preferences', sa.Boolean(create_constraint=True), nullable=False),
+		sa.Column('hide_deactivated_users', sa.Boolean(create_constraint=True), nullable=False),
+		sa.ForeignKeyConstraint(['access_group_id'], ['group.id'], name=op.f('fk_service_access_group_id_group'), onupdate='CASCADE', ondelete='SET NULL'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_service')),
+		sa.UniqueConstraint('name', name=op.f('uq_service_name'))
+	)
+	with op.batch_alter_table('service', copy_from=service) as batch_op:
+		batch_op.drop_column('hide_deactivated_users')

uffd/migrations/versions/2a6b1fb82ce6_added_missing_oauth2grant_code_index.py

+"""added missing oauth2grant.code index
+
+Revision ID: 2a6b1fb82ce6
+Revises: cbca20cf64d9
+Create Date: 2021-04-13 23:03:46.280189
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = '2a6b1fb82ce6'
+down_revision = 'cbca20cf64d9'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	with op.batch_alter_table('oauth2grant', schema=None) as batch_op:
+		batch_op.create_index(batch_op.f('ix_oauth2grant_code'), ['code'], unique=False)
+
+def downgrade():
+	with op.batch_alter_table('oauth2grant', schema=None) as batch_op:
+		batch_op.drop_index(batch_op.f('ix_oauth2grant_code'))

uffd/migrations/versions/2b68f688bec1_remailer_v2.py

+"""Remailer v2
+
+Revision ID: 2b68f688bec1
+Revises: e13b733ec856
+Create Date: 2022-10-20 03:40:11.522343
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = '2b68f688bec1'
+down_revision = 'e13b733ec856'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	with op.batch_alter_table('service', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('remailer_mode', sa.Enum('DISABLED', 'ENABLED_V1', 'ENABLED_V2', create_constraint=True, name='remailermode'), nullable=False, server_default='DISABLED'))
+	service = sa.table('service',
+		sa.column('id', sa.Integer),
+		sa.column('use_remailer', sa.Boolean(create_constraint=True)),
+		sa.column('remailer_mode', sa.Enum('DISABLED', 'ENABLED_V1', 'ENABLED_V2', create_constraint=True, name='remailermode')),
+	)
+	op.execute(service.update().values(remailer_mode='ENABLED_V1').where(service.c.use_remailer))
+	meta = sa.MetaData(bind=op.get_bind())
+	service = sa.Table('service', meta,
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('name', sa.String(length=255), nullable=False),
+    sa.Column('limit_access', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('access_group_id', sa.Integer(), nullable=True),
+    sa.Column('use_remailer', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('enable_email_preferences', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('remailer_mode', sa.Enum('DISABLED', 'ENABLED_V1', 'ENABLED_V2', create_constraint=True, name='remailermode'), nullable=False, server_default='DISABLED'),
+    sa.ForeignKeyConstraint(['access_group_id'], ['group.id'], name=op.f('fk_service_access_group_id_group'), onupdate='CASCADE', ondelete='SET NULL'),
+    sa.PrimaryKeyConstraint('id', name=op.f('pk_service')),
+    sa.UniqueConstraint('name', name=op.f('uq_service_name'))
+	)
+	with op.batch_alter_table('service', copy_from=service) as batch_op:
+		batch_op.alter_column('remailer_mode', server_default=None)
+		batch_op.drop_column('use_remailer')
+
+def downgrade():
+	with op.batch_alter_table('service', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('use_remailer', sa.BOOLEAN(), nullable=False, server_default=sa.false()))
+	service = sa.table('service',
+		sa.column('id', sa.Integer),
+		sa.column('use_remailer', sa.Boolean(create_constraint=True)),
+		sa.column('remailer_mode', sa.Enum('DISABLED', 'ENABLED_V1', 'ENABLED_V2', create_constraint=True, name='remailermode')),
+	)
+	op.execute(service.update().values(use_remailer=sa.true()).where(service.c.remailer_mode != 'DISABLED'))
+	meta = sa.MetaData(bind=op.get_bind())
+	service = sa.Table('service', meta,
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('name', sa.String(length=255), nullable=False),
+    sa.Column('limit_access', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('access_group_id', sa.Integer(), nullable=True),
+    sa.Column('use_remailer', sa.Boolean(create_constraint=True), nullable=False, server_default=sa.false()),
+    sa.Column('enable_email_preferences', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('remailer_mode', sa.Enum('DISABLED', 'ENABLED_V1', 'ENABLED_V2', create_constraint=True, name='remailermode'), nullable=False),
+    sa.ForeignKeyConstraint(['access_group_id'], ['group.id'], name=op.f('fk_service_access_group_id_group'), onupdate='CASCADE', ondelete='SET NULL'),
+    sa.PrimaryKeyConstraint('id', name=op.f('pk_service')),
+    sa.UniqueConstraint('name', name=op.f('uq_service_name'))
+	)
+	with op.batch_alter_table('service', copy_from=service) as batch_op:
+		batch_op.alter_column('use_remailer', server_default=None)
+		batch_op.drop_column('remailer_mode')

uffd/migrations/versions/468995a9c9ee_unique_email_addresses.py

+"""Unique email addresses
+
+Revision ID: 468995a9c9ee
+Revises: 2b68f688bec1
+Create Date: 2022-10-21 01:25:01.469670
+
+"""
+import unicodedata
+
+from alembic import op
+import sqlalchemy as sa
+
+revision = '468995a9c9ee'
+down_revision = '2b68f688bec1'
+branch_labels = None
+depends_on = None
+
+def normalize_address(value):
+	return unicodedata.normalize('NFKC', value).lower().strip()
+
+def iter_rows_paged(table, pk='id', limit=1000):
+	conn = op.get_bind()
+	pk_column = getattr(table.c, pk)
+	last_pk = None
+	while True:
+		expr = table.select().order_by(pk_column).limit(limit)
+		if last_pk is not None:
+			expr = expr.where(pk_column > last_pk)
+		result = conn.execute(expr)
+		pk_index = list(result.keys()).index(pk)
+		rows = result.fetchall()
+		if not rows:
+			break
+		yield from rows
+		last_pk = rows[-1][pk_index]
+
+def upgrade():
+	with op.batch_alter_table('user_email', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('address_normalized', sa.String(length=128), nullable=True))
+		batch_op.add_column(sa.Column('enable_strict_constraints', sa.Boolean(create_constraint=True), nullable=True))
+		batch_op.alter_column('verified', existing_type=sa.Boolean(create_constraint=True), nullable=True)
+	meta = sa.MetaData(bind=op.get_bind())
+	user_email_table = sa.Table('user_email', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.Column('address', sa.String(length=128), nullable=False),
+		sa.Column('address_normalized', sa.String(length=128), nullable=True),
+		sa.Column('enable_strict_constraints', sa.Boolean(create_constraint=True), nullable=True),
+		sa.Column('verified', sa.Boolean(create_constraint=True), nullable=True),
+		sa.Column('verification_legacy_id', sa.Integer(), nullable=True),
+		sa.Column('verification_secret', sa.Text(), nullable=True),
+		sa.Column('verification_expires', sa.DateTime(), nullable=True),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_user_email_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_user_email')),
+		sa.UniqueConstraint('user_id', 'address', name='uq_user_email_user_id_address')
+	)
+	for row in iter_rows_paged(user_email_table):
+		id = row[0]
+		address = row[2]
+		verified = row[5]
+		op.execute(user_email_table.update()\
+			.where(user_email_table.c.id == id)\
+			.values(
+				address_normalized=normalize_address(address),
+				verified=(True if verified else None)
+			)
+		)
+	with op.batch_alter_table('user_email', copy_from=user_email_table) as batch_op:
+		batch_op.alter_column('address_normalized', existing_type=sa.String(length=128), nullable=False)
+		batch_op.create_unique_constraint('uq_user_email_address_normalized_verified', ['address_normalized', 'verified', 'enable_strict_constraints'])
+		batch_op.create_unique_constraint('uq_user_email_user_id_address_normalized', ['user_id', 'address_normalized', 'enable_strict_constraints'])
+	op.create_table('feature_flag',
+		sa.Column('name', sa.String(32), nullable=False),
+		sa.PrimaryKeyConstraint('name', name=op.f('pk_feature_flag')),
+	)
+
+def downgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	user_email_table = sa.Table('user_email', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.Column('address', sa.String(length=128), nullable=False),
+		sa.Column('address_normalized', sa.String(length=128), nullable=False),
+		sa.Column('enable_strict_constraints', sa.Boolean(create_constraint=True), nullable=True),
+		sa.Column('verified', sa.Boolean(create_constraint=True), nullable=True),
+		sa.Column('verification_legacy_id', sa.Integer(), nullable=True),
+		sa.Column('verification_secret', sa.Text(), nullable=True),
+		sa.Column('verification_expires', sa.DateTime(), nullable=True),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_user_email_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_user_email')),
+		sa.UniqueConstraint('user_id', 'address', name='uq_user_email_user_id_address'),
+		sa.UniqueConstraint('address_normalized', 'verified', 'enable_strict_constraints', name='uq_user_email_address_normalized_verified'),
+		sa.UniqueConstraint('user_id', 'address_normalized', 'enable_strict_constraints', name='uq_user_email_user_id_address_normalized')
+	)
+	op.execute(user_email_table.update().where(user_email_table.c.verified == None).values(verified=False))
+	with op.batch_alter_table('user_email', copy_from=user_email_table) as batch_op:
+		batch_op.drop_constraint('uq_user_email_user_id_address_normalized', type_='unique')
+		batch_op.drop_constraint('uq_user_email_address_normalized_verified', type_='unique')
+		batch_op.alter_column('verified', existing_type=sa.Boolean(create_constraint=True), nullable=False)
+		batch_op.drop_column('enable_strict_constraints')
+		batch_op.drop_column('address_normalized')
+	op.drop_table('feature_flag')

uffd/migrations/versions/4bd316207e59_unified_password_hashing_for_recovery_codes.py

+"""Unified password hashing for recovery codes
+
+Revision ID: 4bd316207e59
+Revises: e71e29cc605a
+Create Date: 2024-05-22 03:13:55.917641
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = '4bd316207e59'
+down_revision = 'e71e29cc605a'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	mfa_method = sa.Table('mfa_method', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('type', sa.Enum('RECOVERY_CODE', 'TOTP', 'WEBAUTHN', name='mfatype', create_constraint=True), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('name', sa.String(length=128), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('recovery_salt', sa.String(length=64), nullable=True),
+		sa.Column('recovery_hash', sa.String(length=256), nullable=True),
+		sa.Column('totp_key', sa.String(length=64), nullable=True),
+		sa.Column('totp_last_counter', sa.Integer(), nullable=True),
+		sa.Column('webauthn_cred', sa.Text(), nullable=True),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_mfa_method_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_mfa_method'))
+	)
+	# This field was already unused before the change to unified password hashing. So this is unrelated cleanup.
+	with op.batch_alter_table('mfa_method', copy_from=mfa_method) as batch_op:
+		batch_op.drop_column('recovery_salt')
+	op.execute(mfa_method.update().values(recovery_hash=('{crypt}' + mfa_method.c.recovery_hash)).where(mfa_method.c.type == 'RECOVERY_CODE'))
+
+def downgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	mfa_method = sa.Table('mfa_method', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('type', sa.Enum('RECOVERY_CODE', 'TOTP', 'WEBAUTHN', name='mfatype', create_constraint=True), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('name', sa.String(length=128), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('recovery_hash', sa.String(length=256), nullable=True),
+		sa.Column('totp_key', sa.String(length=64), nullable=True),
+		sa.Column('totp_last_counter', sa.Integer(), nullable=True),
+		sa.Column('webauthn_cred', sa.Text(), nullable=True),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_mfa_method_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_mfa_method'))
+	)
+	with op.batch_alter_table('mfa_method', copy_from=mfa_method) as batch_op:
+		batch_op.add_column(sa.Column('recovery_salt', sa.VARCHAR(length=64), nullable=True))
+	op.execute(
+		mfa_method.delete().where(sa.and_(
+			mfa_method.c.type == 'RECOVERY_CODE',
+			sa.not_(mfa_method.c.recovery_hash.ilike('{crypt}%'))
+		))
+	)
+	op.execute(
+		mfa_method.update().values(
+			recovery_hash=sa.func.substr(mfa_method.c.recovery_hash, len('{crypt}') + 1)
+		).where(sa.and_(
+			mfa_method.c.type == 'RECOVERY_CODE',
+			mfa_method.c.recovery_hash.ilike('{crypt}%')
+		))
+	)

uffd/migrations/versions/54b2413586fd_invite_pk_change.py

+"""invite pk change
+
+Revision ID: 54b2413586fd
+Revises: 2a6b1fb82ce6
+Create Date: 2021-04-13 23:33:40.118507
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = '54b2413586fd'
+down_revision = '2a6b1fb82ce6'
+branch_labels = None
+depends_on = None
+
+invite = sa.sql.table('invite',
+	sa.sql.column('id', sa.Integer()),
+	sa.sql.column('token', sa.String(length=128))
+)
+invite_grant = sa.sql.table('invite_grant',
+	sa.sql.column('invite_id', sa.Integer()),
+	sa.sql.column('invite_token', sa.String(length=128))
+)
+invite_roles = sa.sql.table('invite_roles',
+	sa.sql.column('invite_id', sa.Integer()),
+	sa.sql.column('invite_token', sa.String(length=128))
+)
+invite_signup = sa.sql.table('invite_signup',
+	sa.sql.column('invite_id', sa.Integer()),
+	sa.sql.column('invite_token', sa.String(length=128))
+)
+
+def upgrade():
+	# CHECK constraints get lost when reflecting from the actual table
+	meta = sa.MetaData(bind=op.get_bind())
+	table = sa.Table('invite', meta,
+		sa.Column('token', sa.String(length=128), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('valid_until', sa.DateTime(), nullable=False),
+		sa.Column('single_use', sa.Boolean(create_constraint=True, name=op.f('ck_invite_single_use')), nullable=False),
+		sa.Column('allow_signup', sa.Boolean(create_constraint=True, name=op.f('ck_invite_allow_signup')), nullable=False),
+		sa.Column('used', sa.Boolean(create_constraint=True, name=op.f('ck_invite_used')), nullable=False),
+		sa.Column('disabled', sa.Boolean(create_constraint=True, name=op.f('ck_invite_disabled')), nullable=False),
+		sa.PrimaryKeyConstraint('token', name=op.f('pk_invite'))
+	)
+	with op.batch_alter_table('invite_grant', schema=None) as batch_op:
+		batch_op.drop_constraint('fk_invite_grant_invite_token_invite', type_='foreignkey')
+	with op.batch_alter_table('invite_roles', schema=None) as batch_op:
+		batch_op.drop_constraint('fk_invite_roles_invite_token_invite', type_='foreignkey')
+	with op.batch_alter_table('invite_signup', schema=None) as batch_op:
+		batch_op.drop_constraint('fk_invite_signup_invite_token_invite', type_='foreignkey')
+	with op.batch_alter_table('invite', copy_from=table, recreate='always') as batch_op:
+		batch_op.drop_constraint(batch_op.f('pk_invite'), type_='primary')
+		batch_op.add_column(sa.Column('id', sa.Integer(), nullable=True))
+		batch_op.create_primary_key(batch_op.f('pk_invite'), ['id'])
+		batch_op.alter_column('id', autoincrement=True, nullable=False, existing_type=sa.Integer())
+		batch_op.create_unique_constraint(batch_op.f('uq_invite_token'), ['token'])
+	with op.batch_alter_table('invite_grant', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('invite_id', sa.Integer(), nullable=True))
+	with op.batch_alter_table('invite_roles', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('invite_id', sa.Integer(), nullable=True))
+	with op.batch_alter_table('invite_signup', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('invite_id', sa.Integer(), nullable=True))
+
+	op.execute(invite_grant.update().values(invite_id=sa.select([invite.c.id]).where(invite.c.token==invite_grant.c.invite_token).as_scalar()))
+	op.execute(invite_roles.update().values(invite_id=sa.select([invite.c.id]).where(invite.c.token==invite_roles.c.invite_token).as_scalar()))
+	op.execute(invite_signup.update().values(invite_id=sa.select([invite.c.id]).where(invite.c.token==invite_signup.c.invite_token).as_scalar()))
+
+	with op.batch_alter_table('invite_grant', schema=None) as batch_op:
+		batch_op.alter_column('invite_id', existing_type=sa.INTEGER(), nullable=False)
+		batch_op.create_foreign_key(batch_op.f('fk_invite_grant_invite_id_invite'), 'invite', ['invite_id'], ['id'])
+		batch_op.drop_column('invite_token')
+	with op.batch_alter_table('invite_roles', schema=None) as batch_op:
+		batch_op.drop_constraint(batch_op.f('pk_invite_roles'), type_='primary')
+		batch_op.create_primary_key(batch_op.f('pk_invite_roles'), ['invite_id', 'role_id'])
+		batch_op.create_foreign_key(batch_op.f('fk_invite_roles_invite_id_invite'), 'invite', ['invite_id'], ['id'])
+		batch_op.drop_column('invite_token')
+	with op.batch_alter_table('invite_signup', schema=None) as batch_op:
+		batch_op.alter_column('invite_id', existing_type=sa.INTEGER(), nullable=False)
+		batch_op.create_foreign_key(batch_op.f('fk_invite_signup_invite_id_invite'), 'invite', ['invite_id'], ['id'])
+		batch_op.drop_column('invite_token')
+
+def downgrade():
+	with op.batch_alter_table('invite_signup', schema=None) as batch_op:
+		batch_op.drop_constraint(batch_op.f('fk_invite_signup_invite_id_invite'), type_='foreignkey')
+		batch_op.add_column(sa.Column('invite_token', sa.VARCHAR(length=128), nullable=True))
+	with op.batch_alter_table('invite_roles', schema=None) as batch_op:
+		batch_op.drop_constraint(batch_op.f('fk_invite_roles_invite_id_invite'), type_='foreignkey')
+		batch_op.add_column(sa.Column('invite_token', sa.VARCHAR(length=128), nullable=True))
+	with op.batch_alter_table('invite_grant', schema=None) as batch_op:
+		batch_op.drop_constraint(batch_op.f('fk_invite_grant_invite_id_invite'), type_='foreignkey')
+		batch_op.add_column(sa.Column('invite_token', sa.VARCHAR(length=128), nullable=True))
+
+	op.execute(invite_grant.update().values(invite_token=sa.select([invite.c.token]).where(invite.c.id==invite_grant.c.invite_id).as_scalar()))
+	op.execute(invite_roles.update().values(invite_token=sa.select([invite.c.token]).where(invite.c.id==invite_roles.c.invite_id).as_scalar()))
+	op.execute(invite_signup.update().values(invite_token=sa.select([invite.c.token]).where(invite.c.id==invite_signup.c.invite_id).as_scalar()))
+
+	with op.batch_alter_table('invite_signup', schema=None) as batch_op:
+		batch_op.alter_column('invite_token', existing_type=sa.VARCHAR(length=128), nullable=False)
+		batch_op.drop_column('invite_id')
+	with op.batch_alter_table('invite_roles', schema=None) as batch_op:
+		batch_op.alter_column('invite_token', existing_type=sa.VARCHAR(length=128), nullable=False)
+		batch_op.drop_constraint(batch_op.f('pk_invite_roles'), type_='primary')
+		batch_op.create_primary_key(batch_op.f('pk_invite_roles'), ['invite_token', 'role_id'])
+		batch_op.drop_column('invite_id')
+	with op.batch_alter_table('invite_grant', schema=None) as batch_op:
+		batch_op.alter_column('invite_token', existing_type=sa.VARCHAR(length=128), nullable=False)
+		batch_op.drop_column('invite_id')
+
+	# CHECK constraints get lost when reflecting from the actual table
+	meta = sa.MetaData(bind=op.get_bind())
+	table = sa.Table('invite', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('token', sa.String(length=128), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('valid_until', sa.DateTime(), nullable=False),
+		sa.Column('single_use', sa.Boolean(create_constraint=True, name=op.f('ck_invite_single_use')), nullable=False),
+		sa.Column('allow_signup', sa.Boolean(create_constraint=True, name=op.f('ck_invite_allow_signup')), nullable=False),
+		sa.Column('used', sa.Boolean(create_constraint=True, name=op.f('ck_invite_used')), nullable=False),
+		sa.Column('disabled', sa.Boolean(create_constraint=True, name=op.f('ck_invite_disabled')), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_invite')),
+		sa.UniqueConstraint('token', name=op.f('uq_invite_token'))
+	)
+	with op.batch_alter_table('invite', copy_from=table, recreate='always') as batch_op:
+		batch_op.drop_constraint(batch_op.f('uq_invite_token'), type_='unique')
+		batch_op.alter_column('id', autoincrement=False, existing_type=sa.Integer())
+		batch_op.drop_constraint(batch_op.f('pk_invite'), type_='primary')
+		batch_op.drop_column('id')
+		batch_op.create_primary_key(batch_op.f('pk_invite'), ['token'])
+	with op.batch_alter_table('invite_signup', schema=None) as batch_op:
+		batch_op.create_foreign_key('fk_invite_signup_invite_token_invite', 'invite', ['invite_token'], ['token'])
+	with op.batch_alter_table('invite_roles', schema=None) as batch_op:
+		batch_op.create_foreign_key('fk_invite_roles_invite_token_invite', 'invite', ['invite_token'], ['token'])
+	with op.batch_alter_table('invite_grant', schema=None) as batch_op:
+		batch_op.create_foreign_key('fk_invite_grant_invite_token_invite', 'invite', ['invite_token'], ['token'])

uffd/migrations/versions/5a07d4a63b64_role_inclusion.py

+"""Role inclusion
+
+Revision ID: 5a07d4a63b64
+Revises: a29870f95175
+Create Date: 2021-04-05 15:00:26.205433
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '5a07d4a63b64'
+down_revision = 'a29870f95175'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table('role-inclusion',
+    sa.Column('role_id', sa.Integer(), nullable=False),
+    sa.Column('included_role_id', sa.Integer(), nullable=False),
+    sa.ForeignKeyConstraint(['included_role_id'], ['role.id'], ),
+    sa.ForeignKeyConstraint(['role_id'], ['role.id'], ),
+    sa.PrimaryKeyConstraint('role_id', 'included_role_id')
+    )
+
+
+def downgrade():
+    op.drop_table('role-inclusion')

uffd/migrations/versions/5cab70e95bf8_invite_creator_and_role_moderator_group.py

+"""invite creator and role moderator group
+
+Revision ID: 5cab70e95bf8
+Revises: 54b2413586fd
+Create Date: 2021-04-14 15:46:29.910342
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '5cab70e95bf8'
+down_revision = '54b2413586fd'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('invite', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('creator_dn', sa.String(length=128), nullable=True))
+
+    with op.batch_alter_table('role', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('moderator_group_dn', sa.String(length=128), nullable=True))
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('role', schema=None) as batch_op:
+        batch_op.drop_column('moderator_group_dn')
+
+    with op.batch_alter_table('invite', schema=None) as batch_op:
+        batch_op.drop_column('creator_dn')
+
+    # ### end Alembic commands ###

uffd/migrations/versions/704d1245331c_remailer_setting_and_api_permission.py

+"""remailer setting and api permission
+
+Revision ID: 704d1245331c
+Revises: b9d3f7dac9db
+Create Date: 2022-04-19 17:32:52.304313
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = '704d1245331c'
+down_revision = 'b9d3f7dac9db'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	# Retrospective fix of this migration: Originally server_default was not set,
+	# which caused "Cannot add a NOT NULL column with default value NULL" errors.
+	# This only happens with recent Alembic versions that render
+	# batch_op.add_column as an "ALTER TABLE" statement instead of recreating the
+	# table. To keep the resulting database consistent, we remove the
+	# server_default afterwards.
+	with op.batch_alter_table('api_client') as batch_op:
+		batch_op.add_column(sa.Column('perm_remailer', sa.Boolean(create_constraint=True), nullable=False, server_default=sa.false()))
+	with op.batch_alter_table('service') as batch_op:
+		batch_op.add_column(sa.Column('use_remailer', sa.Boolean(create_constraint=True), nullable=False, server_default=sa.false()))
+	meta = sa.MetaData(bind=op.get_bind())
+	api_client = sa.Table('api_client', meta,
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('service_id', sa.Integer(), nullable=False),
+    sa.Column('auth_username', sa.String(length=40), nullable=False),
+    sa.Column('auth_password', sa.Text(), nullable=False),
+    sa.Column('perm_users', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('perm_checkpassword', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('perm_mail_aliases', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('perm_remailer', sa.Boolean(create_constraint=True), nullable=False, server_default=sa.false()),
+    sa.ForeignKeyConstraint(['service_id'], ['service.id'], name=op.f('fk_api_client_service_id_service'), onupdate='CASCADE', ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('id', name=op.f('pk_api_client')),
+    sa.UniqueConstraint('auth_username', name=op.f('uq_api_client_auth_username'))
+	)
+	service = sa.Table('service', meta,
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('name', sa.String(length=255), nullable=False),
+    sa.Column('limit_access', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('access_group_id', sa.Integer(), nullable=True),
+    sa.Column('use_remailer', sa.Boolean(create_constraint=True), nullable=False, server_default=sa.false()),
+    sa.ForeignKeyConstraint(['access_group_id'], ['group.id'], name=op.f('fk_service_access_group_id_group'), onupdate='CASCADE', ondelete='SET NULL'),
+    sa.PrimaryKeyConstraint('id', name=op.f('pk_service')),
+    sa.UniqueConstraint('name', name=op.f('uq_service_name'))
+	)
+	with op.batch_alter_table('api_client', copy_from=api_client) as batch_op:
+		batch_op.alter_column('perm_remailer', server_default=None)
+	with op.batch_alter_table('service', copy_from=service) as batch_op:
+		batch_op.alter_column('use_remailer', server_default=None)
+
+def downgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	api_client = sa.Table('api_client', meta,
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('service_id', sa.Integer(), nullable=False),
+    sa.Column('auth_username', sa.String(length=40), nullable=False),
+    sa.Column('auth_password', sa.Text(), nullable=False),
+    sa.Column('perm_users', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('perm_checkpassword', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('perm_mail_aliases', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('perm_remailer', sa.Boolean(create_constraint=True), nullable=False),
+    sa.ForeignKeyConstraint(['service_id'], ['service.id'], name=op.f('fk_api_client_service_id_service'), onupdate='CASCADE', ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('id', name=op.f('pk_api_client')),
+    sa.UniqueConstraint('auth_username', name=op.f('uq_api_client_auth_username'))
+	)
+	service = sa.Table('service', meta,
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('name', sa.String(length=255), nullable=False),
+    sa.Column('limit_access', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('access_group_id', sa.Integer(), nullable=True),
+    sa.Column('use_remailer', sa.Boolean(create_constraint=True), nullable=False),
+    sa.ForeignKeyConstraint(['access_group_id'], ['group.id'], name=op.f('fk_service_access_group_id_group'), onupdate='CASCADE', ondelete='SET NULL'),
+    sa.PrimaryKeyConstraint('id', name=op.f('pk_service')),
+    sa.UniqueConstraint('name', name=op.f('uq_service_name'))
+	)
+	with op.batch_alter_table('service', copy_from=service) as batch_op:
+		batch_op.drop_column('use_remailer')
+	with op.batch_alter_table('api_client', copy_from=api_client) as batch_op:
+		batch_op.drop_column('perm_remailer')

uffd/migrations/versions/878b25c4fae7_ldap_to_db.py

+"""LDAP to DB
+
+Revision ID: 878b25c4fae7
+Revises: 11ecc8f1ac3b
+Create Date: 2021-08-01 16:31:09.242380
+
+"""
+from warnings import warn
+
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = '878b25c4fae7'
+down_revision = '11ecc8f1ac3b'
+branch_labels = None
+depends_on = None
+
+from flask import current_app
+
+def encode_filter(filter_params):
+	from ldap3.utils.conv import escape_filter_chars
+	return '(&%s)'%(''.join(['(%s=%s)'%(attr, escape_filter_chars(value)) for attr, value in filter_params]))
+
+def get_ldap_conn():
+	if 'LDAP_SERVICE_URL' in current_app.config and not current_app.config.get('UPGRADE_V1_TO_V2'):
+		raise Exception('Refusing to run v1 to v2 migrations: UPGRADE_V1_TO_V2 not set. Make sure to read upgrade instructions first!')
+	critical = True
+	if 'LDAP_SERVICE_URL' not in current_app.config:
+		critical = False
+	try:
+		if current_app.config.get('LDAP_SERVICE_USER_BIND'):
+			raise Exception('Import with LDAP_SERVICE_USER_BIND=True is not supported')
+		if current_app.config.get('LDAP_SERVICE_MOCK'):
+			# never reached if current_app.testing is True
+			raise Exception('Import with LDAP_SERVICE_MOCK=True is not supported')
+		import ldap3
+		server = ldap3.Server(current_app.config.get('LDAP_SERVICE_URL', 'ldapi:///'), get_info=ldap3.ALL)
+		# Using auto_bind cannot close the connection, so define the connection with extra steps
+		conn = ldap3.Connection(server, current_app.config.get('LDAP_SERVICE_BIND_DN', ''),
+		                        current_app.config.get('LDAP_SERVICE_BIND_PASSWORD', ''))
+		if conn.closed:
+			conn.open(read_server_info=False)
+		if current_app.config.get('LDAP_SERVICE_USE_STARTTLS', True):
+			conn.start_tls(read_server_info=False)
+		if not conn.bind(read_server_info=True):
+			conn.unbind()
+			raise ldap3.core.exceptions.LDAPBindError
+		return conn
+	except Exception as e:
+		if critical:
+			raise e
+		else:
+			warn(f'LDAP not properly configured, disabling import: {e}')
+	return None
+
+def get_ldap_users():
+	if current_app.config.get('LDAP_SERVICE_MOCK') and current_app.testing:
+		return [
+			{'dn': 'uid=testuser,ou=users,dc=example,dc=com', 'unix_uid': 10000, 'loginname': 'testuser',
+			 'displayname': 'Test User', 'mail': 'testuser@example.com',
+		   'pwhash': '{ssha512}llnQc2ruKczLUHJUPA3/MGA1rkChXcmYdIeMRfKC8NfsqnHTtd2UmSZ7RL4uTExzAcMyYKxLwyjmjZfycjLHBjR6NJeK1sz3',
+			 'is_service_user': False},
+			{'dn': 'uid=testadmin,ou=users,dc=example,dc=com', 'unix_uid': 10001, 'loginname': 'testadmin',
+			 'displayname': 'Test Admin', 'mail': 'testadmin@example.com',
+			 'pwhash': '{ssha512}8pI4sHQWEgDf9u4qj35QT3J1lskLrnWdvhlzSmYg1g2R1r/038f6we+8Hy5ld/KArApB9Gd9+4uitKbZVbR1CkuPT2iAWoMc',
+			 'is_service_user': False},
+		]
+	conn = get_ldap_conn()
+	if not conn:
+		return []
+	conn.search(current_app.config.get('LDAP_USER_SEARCH_BASE', 'ou=users,dc=example,dc=com'),
+	            encode_filter(current_app.config.get('LDAP_USER_SEARCH_FILTER', [('objectClass', 'person')])),
+	            attributes='*')
+	users = []
+	for response in conn.response:
+		uid = response['attributes'][current_app.config.get('LDAP_USER_UID_ATTRIBUTE', 'uidNumber')]
+		pwhash = response['attributes'].get('userPassword', [None])[0]
+		if pwhash is None:
+			raise Exception('Cannot read userPassword attribute')
+		elif isinstance(pwhash, bytes):
+			pwhash = pwhash.decode()
+		users.append({
+			'dn': response['dn'],
+			'unix_uid': uid,
+			'loginname': response['attributes'][current_app.config.get('LDAP_USER_LOGINNAME_ATTRIBUTE', 'uid')][0],
+			'displayname': response['attributes'].get(current_app.config.get('LDAP_USER_DISPLAYNAME_ATTRIBUTE', 'cn'), [''])[0],
+			'mail': response['attributes'][current_app.config.get('LDAP_USER_MAIL_ATTRIBUTE', 'mail')][0],
+			'pwhash': pwhash,
+			'is_service_user':  uid >= current_app.config.get('LDAP_USER_SERVICE_MIN_UID', 19000) and \
+			                    uid <= current_app.config.get('LDAP_USER_SERVICE_MAX_UID', 19999),
+		})
+	return users
+
+def get_ldap_groups():
+	if current_app.config.get('LDAP_SERVICE_MOCK') and current_app.testing:
+		return [
+			{'dn': 'cn=users,ou=groups,dc=example,dc=com', 'unix_gid': 20001, 'name': 'users',
+			 'description': 'Base group for all users', 'member_dns': ['cn=dummy,ou=system,dc=example,dc=com',
+			                                                           'uid=testuser,ou=users,dc=example,dc=com',
+			                                                           'uid=testadmin,ou=users,dc=example,dc=com']},
+			{'dn': 'cn=uffd_access,ou=groups,dc=example,dc=com', 'unix_gid': 20002, 'name': 'uffd_access',
+			 'description': 'User access to uffd selfservice', 'member_dns': ['cn=dummy,ou=system,dc=example,dc=com',
+			                                                                  'uid=testuser,ou=users,dc=example,dc=com',
+			                                                                  'uid=testadmin,ou=users,dc=example,dc=com']},
+			{'dn': 'cn=uffd_admin,ou=groups,dc=example,dc=com', 'unix_gid': 20003, 'name': 'uffd_admin',
+			 'description': 'User access to uffd selfservice', 'member_dns': ['cn=dummy,ou=system,dc=example,dc=com',
+			                                                                  'uid=testadmin,ou=users,dc=example,dc=com']},
+		]
+	conn = get_ldap_conn()
+	if not conn:
+		return []
+	conn.search(current_app.config.get('LDAP_GROUP_SEARCH_BASE', 'ou=groups,dc=example,dc=com'),
+	            encode_filter(current_app.config.get('LDAP_GROUP_SEARCH_FILTER', [('objectClass','groupOfUniqueNames')])),
+	            attributes='*')
+	groups = []
+	for response in conn.response:
+		groups.append({
+			'dn': response['dn'],
+			'unix_gid': response['attributes'][current_app.config.get('LDAP_GROUP_GID_ATTRIBUTE', 'gidNumber')],
+			'name': response['attributes'][current_app.config.get('LDAP_GROUP_NAME_ATTRIBUTE', 'cn')][0],
+			'description': response['attributes'].get(current_app.config.get('LDAP_GROUP_DESCRIPTION_ATTRIBUTE', 'description'), [''])[0],
+			'member_dns': response['attributes'].get(current_app.config.get('LDAP_GROUP_MEMBER_ATTRIBUTE', 'uniqueMember'), []),
+		})
+	return groups
+
+def get_ldap_mails():
+	if current_app.config.get('LDAP_SERVICE_MOCK') and current_app.testing:
+		return [
+			{'dn': 'uid=test,ou=postfix,dc=example,dc=com', 'uid': 'test',
+			 'receivers': ['test1@example.com', 'test2@example.com'],
+			 'destinations': ['testuser@mail.example.com']},
+		]
+	conn = get_ldap_conn()
+	if not conn:
+		return []
+	conn.search(current_app.config.get('LDAP_MAIL_SEARCH_BASE', 'ou=postfix,dc=example,dc=com'),
+	            encode_filter(current_app.config.get('LDAP_MAIL_SEARCH_FILTER', [('objectClass','postfixVirtual')])),
+	            attributes='*')
+	mails = []
+	for response in conn.response:
+		mails.append({
+			'dn': response['dn'],
+			'uid': response['attributes'][current_app.config.get('LDAP_MAIL_UID_ATTRIBUTE', 'uid')][0],
+			'receivers': response['attributes'].get(current_app.config.get('LDAP_MAIL_RECEIVERS_ATTRIBUTE', 'mailacceptinggeneralid'), []),
+			'destinations': response['attributes'].get(current_app.config.get('LDAP_MAIL_DESTINATIONS_ATTRIBUTE', 'maildrop'), []),
+		})
+	return mails
+
+def upgrade():
+	# Load LDAP data first, so we fail as early as possible
+	ldap_mails = get_ldap_mails()
+	ldap_users = get_ldap_users()
+	ldap_groups = get_ldap_groups()
+	meta = sa.MetaData(bind=op.get_bind())
+
+	mail_table = op.create_table('mail',
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('uid', sa.String(length=32), nullable=False),
+		sa.Column('dn', sa.String(length=128), nullable=False), # tmp
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_mail')),
+		sa.UniqueConstraint('uid', name=op.f('uq_mail_uid'))
+	)
+	mail_receive_address_table = op.create_table('mail_receive_address',
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('mail_id', sa.Integer(), nullable=True),
+		sa.Column('mail_dn', sa.String(length=128), nullable=False), # tmp
+		sa.Column('address', sa.String(length=128), nullable=False),
+		sa.ForeignKeyConstraint(['mail_id'], ['mail.id'], name=op.f('fk_mail_receive_address_mail_id_mail'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_mail_receive_address'))
+	)
+	mail_destination_address_table = op.create_table('mail_destination_address',
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('mail_id', sa.Integer(), nullable=True),
+		sa.Column('mail_dn', sa.String(length=128), nullable=False), # tmp
+		sa.Column('address', sa.String(length=128), nullable=False),
+		sa.ForeignKeyConstraint(['mail_id'], ['mail.id'], name=op.f('fk_mail_destination_address_mail_id_mail'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_mail_destination_address'))
+	)
+	op.bulk_insert(mail_table, [{'uid': mail['uid'], 'dn': mail['dn']} for mail in ldap_mails])
+	rows = []
+	for mail in ldap_mails:
+		rows += [{'mail_dn': mail['dn'], 'address': address} for address in mail['receivers']]
+	op.bulk_insert(mail_receive_address_table, rows)
+	op.execute(mail_receive_address_table.update().values(mail_id=sa.select([mail_table.c.id]).where(mail_receive_address_table.c.mail_dn==mail_table.c.dn).limit(1).as_scalar()))
+	rows = []
+	for mail in ldap_mails:
+		rows += [{'mail_dn': mail['dn'], 'address': address} for address in mail['destinations']]
+	op.bulk_insert(mail_destination_address_table, rows)
+	op.execute(mail_destination_address_table.update().values(mail_id=sa.select([mail_table.c.id]).where(mail_destination_address_table.c.mail_dn==mail_table.c.dn).limit(1).as_scalar()))
+	with op.batch_alter_table('mail', schema=None) as batch_op:
+		batch_op.drop_column('dn')
+	with op.batch_alter_table('mail_destination_address', copy_from=mail_destination_address_table) as batch_op:
+		batch_op.alter_column('mail_id', existing_type=sa.Integer(), nullable=False)
+		batch_op.drop_column('mail_dn')
+	with op.batch_alter_table('mail_receive_address', copy_from=mail_receive_address_table) as batch_op:
+		batch_op.alter_column('mail_id', existing_type=sa.Integer(), nullable=False)
+		batch_op.drop_column('mail_dn')
+
+	user_table = op.create_table('user',
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('dn', sa.String(length=128), nullable=False), # tmp
+		sa.Column('unix_uid', sa.Integer(), nullable=False),
+		sa.Column('loginname', sa.String(length=32), nullable=False),
+		sa.Column('displayname', sa.String(length=128), nullable=False),
+		sa.Column('mail', sa.String(length=128), nullable=False),
+		sa.Column('pwhash', sa.String(length=256), nullable=True),
+		sa.Column('is_service_user', sa.Boolean(create_constraint=True, name=op.f('ck_user_is_service_user')), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_user')),
+		sa.UniqueConstraint('loginname', name=op.f('uq_user_loginname')),
+		sa.UniqueConstraint('unix_uid', name=op.f('uq_user_unix_uid'))
+	)
+	op.bulk_insert(user_table, ldap_users)
+
+	group_table = op.create_table('group',
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('dn', sa.String(length=128), nullable=False), # tmp
+		sa.Column('unix_gid', sa.Integer(), nullable=False),
+		sa.Column('name', sa.String(length=32), nullable=False),
+		sa.Column('description', sa.String(length=128), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_group')),
+		sa.UniqueConstraint('name', name=op.f('uq_group_name')),
+		sa.UniqueConstraint('unix_gid', name=op.f('uq_group_unix_gid'))
+	)
+	op.bulk_insert(group_table, [{'dn': group['dn'], 'unix_gid': group['unix_gid'], 'name': group['name'], 'description': group['description']} for group in ldap_groups])
+	user_groups_table = op.create_table('user_groups',
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False), # tmp
+		sa.Column('user_dn', sa.String(length=128), nullable=False), # tmp
+		sa.Column('user_id', sa.Integer(), nullable=True), # tmp nullable
+		sa.Column('group_dn', sa.String(length=128), nullable=False), # tmp
+		sa.Column('group_id', sa.Integer(), nullable=True), # tmp nullable
+		sa.ForeignKeyConstraint(['group_id'], ['group.id'], name=op.f('fk_user_groups_group_id_group'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_user_groups_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_user_groups')),
+	)
+	rows = []
+	for group in ldap_groups:
+		rows += [{'group_dn': group['dn'], 'user_dn': member_dn} for member_dn in group['member_dns']]
+	op.bulk_insert(user_groups_table, rows)
+	op.execute(user_groups_table.update().values(user_id=sa.select([user_table.c.id]).where(user_groups_table.c.user_dn==user_table.c.dn).as_scalar()))
+	op.execute(user_groups_table.update().values(group_id=sa.select([group_table.c.id]).where(user_groups_table.c.group_dn==group_table.c.dn).as_scalar()))
+	# Delete member objects that are not users (like the "dummy" object)
+	op.execute(user_groups_table.delete().where(sa.or_(user_groups_table.c.user_id==None, user_groups_table.c.group_id==None)))
+	with op.batch_alter_table('user_groups', copy_from=user_groups_table) as batch_op:
+		batch_op.alter_column('user_id', existing_type=sa.Integer(), nullable=False)
+		batch_op.alter_column('group_id', existing_type=sa.Integer(), nullable=False)
+		batch_op.drop_column('group_dn')
+		batch_op.alter_column('id', existing_type=sa.Integer(), nullable=True, autoincrement=False)
+		batch_op.drop_constraint('pk_user_groups', 'primary')
+		batch_op.create_primary_key('pk_user_groups', ['user_id', 'group_id'])
+		batch_op.drop_column('id')
+		batch_op.drop_column('user_dn')
+
+	with op.batch_alter_table('role-group', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('group_id', sa.Integer(), nullable=True))
+	role_groups_table = sa.Table('role-group', meta,
+		sa.Column('role_id', sa.Integer(), nullable=False),
+		sa.Column('group_dn', sa.String(length=128), nullable=False),
+		sa.Column('group_id', sa.Integer(), nullable=True),
+		sa.Column('requires_mfa', sa.Boolean(create_constraint=False), nullable=False),
+		sa.CheckConstraint('requires_mfa in (0,1)', name=op.f('ck_role-group_requires_mfa')),
+		sa.ForeignKeyConstraint(['role_id'], ['role.id'], name=op.f('fk_role-group_role_id_role')),
+		sa.PrimaryKeyConstraint('role_id', 'group_dn', name=op.f('pk_role-group'))
+	)
+	op.execute(role_groups_table.update().values(group_id=sa.select([group_table.c.id]).where(role_groups_table.c.group_dn==group_table.c.dn).as_scalar()))
+	op.execute(role_groups_table.delete().where(role_groups_table.c.group_id==None))
+	with op.batch_alter_table('role-group', copy_from=role_groups_table) as batch_op:
+		batch_op.drop_constraint('ck_role-group_requires_mfa', 'check')
+		batch_op.create_check_constraint('ck_role_groups_requires_mfa', role_groups_table.c.requires_mfa.in_([0,1]))
+		batch_op.drop_constraint('fk_role-group_role_id_role', 'foreignkey')
+		batch_op.drop_constraint('pk_role-group', 'primary')
+		batch_op.create_primary_key('pk_role_groups', ['role_id', 'group_id'])
+		batch_op.create_foreign_key(batch_op.f('fk_role_groups_role_id_role'), 'role', ['role_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.create_foreign_key(batch_op.f('fk_role_groups_group_id_group'), 'group', ['group_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.drop_column('group_dn')
+	op.rename_table('role-group', 'role_groups')
+
+	with op.batch_alter_table('role-user', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_id', sa.Integer(), nullable=True))
+	role_members_table = sa.Table('role-user', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('dn', sa.String(length=128), nullable=False),
+		sa.Column('role_id', sa.Integer(), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.ForeignKeyConstraint(['role_id'], ['role.id'], name=op.f('fk_role-user_role_id_role')),
+		sa.UniqueConstraint('dn', 'role_id', name='uq_role-user_dn'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_role-user'))
+	)
+	op.execute(role_members_table.update().values(user_id=sa.select([user_table.c.id]).where(role_members_table.c.dn==user_table.c.dn).as_scalar()))
+	op.execute(role_members_table.delete().where(role_members_table.c.user_id==None))
+	with op.batch_alter_table('role-user', copy_from=role_members_table) as batch_op:
+		batch_op.alter_column('user_id', existing_type=sa.Integer(), nullable=False)
+		batch_op.alter_column('role_id', existing_type=sa.Integer(), nullable=False)
+		batch_op.drop_constraint('fk_role-user_role_id_role', 'foreignkey')
+		batch_op.drop_constraint('uq_role-user_dn', 'unique')
+		batch_op.create_foreign_key(batch_op.f('fk_role_members_role_id_role'), 'role', ['role_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.create_foreign_key(batch_op.f('fk_role_members_user_id_user'), 'user', ['user_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.drop_column('dn')
+		batch_op.alter_column('id', existing_type=sa.Integer(), nullable=True, autoincrement=False)
+		batch_op.drop_constraint('pk_role-user', 'primary')
+		batch_op.create_primary_key('pk_role_members', ['role_id', 'user_id'])
+		batch_op.drop_column('id')
+	op.rename_table('role-user', 'role_members')
+
+	with op.batch_alter_table('device_login_confirmation', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_id', sa.Integer(), nullable=True))
+		batch_op.create_unique_constraint(batch_op.f('uq_device_login_confirmation_user_id'), ['user_id'])
+	device_login_confirmation = sa.Table('device_login_confirmation', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('initiation_id', sa.Integer(), nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.Column('user_dn', sa.String(length=128), nullable=False),
+		sa.Column('code0', sa.String(length=32), nullable=False),
+		sa.Column('code1', sa.String(length=32), nullable=False),
+		sa.ForeignKeyConstraint(['initiation_id'], ['device_login_initiation.id'], name=op.f('fk_device_login_confirmation_initiation_id_')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_device_login_confirmation')),
+		sa.UniqueConstraint('initiation_id', 'code0', name='uq_device_login_confirmation_initiation_id_code0'),
+		sa.UniqueConstraint('initiation_id', 'code1', name='uq_device_login_confirmation_initiation_id_code1'),
+		sa.UniqueConstraint('user_id', name=op.f('uq_device_login_confirmation_user_id'))
+	)
+	op.execute(device_login_confirmation.update().values(user_id=sa.select([user_table.c.id]).where(device_login_confirmation.c.user_dn==user_table.c.dn).as_scalar()))
+	op.execute(device_login_confirmation.delete().where(device_login_confirmation.c.user_id==None))
+	with op.batch_alter_table('device_login_confirmation', copy_from=device_login_confirmation) as batch_op:
+		batch_op.create_foreign_key(batch_op.f('fk_device_login_confirmation_user_id_user'), 'user', ['user_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.drop_constraint('fk_device_login_confirmation_initiation_id_', type_='foreignkey')
+		batch_op.create_foreign_key('fk_device_login_confirmation_initiation_id_', 'device_login_initiation', ['initiation_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.alter_column('user_id', nullable=False, existing_type=sa.Integer())
+		batch_op.drop_column('user_dn')
+
+	with op.batch_alter_table('invite', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('creator_id', sa.Integer(), nullable=True))
+		batch_op.create_foreign_key(batch_op.f('fk_invite_creator_id_user'), 'user', ['creator_id'], ['id'], onupdate='CASCADE')
+	invite = sa.Table('invite', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('token', sa.String(length=128), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('creator_id', sa.Integer(), nullable=True),
+		sa.Column('creator_dn', sa.String(length=128), nullable=True),
+		sa.Column('valid_until', sa.DateTime(), nullable=False),
+		sa.Column('single_use', sa.Boolean(create_constraint=True, name=op.f('ck_invite_single_use')), nullable=False),
+		sa.Column('allow_signup', sa.Boolean(create_constraint=True, name=op.f('ck_invite_allow_signup')), nullable=False),
+		sa.Column('used', sa.Boolean(create_constraint=True, name=op.f('ck_invite_used')), nullable=False),
+		sa.Column('disabled', sa.Boolean(create_constraint=True, name=op.f('ck_invite_disabled')), nullable=False),
+		sa.ForeignKeyConstraint(['creator_id'], ['user.id'], name=op.f('fk_invite_creator_id_user'), onupdate='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_invite')),
+		sa.UniqueConstraint('token', name=op.f('uq_invite_token'))
+	)
+	op.execute(invite.update().values(creator_id=sa.select([user_table.c.id]).where(invite.c.creator_dn==user_table.c.dn).as_scalar()))
+	with op.batch_alter_table('invite', copy_from=invite) as batch_op:
+		batch_op.drop_column('creator_dn')
+
+	with op.batch_alter_table('invite_grant', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_id', sa.Integer(), nullable=True))
+	invite_grant = sa.Table('invite_grant', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('invite_id', sa.Integer(), nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.Column('user_dn', sa.String(length=128), nullable=False),
+		sa.ForeignKeyConstraint(['invite_id'], ['invite.id'], name=op.f('fk_invite_grant_invite_id_invite')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_invite_grant'))
+	)
+	op.execute(invite_grant.update().values(user_id=sa.select([user_table.c.id]).where(invite_grant.c.user_dn==user_table.c.dn).as_scalar()))
+	op.execute(invite_grant.delete().where(invite_grant.c.user_id==None))
+	with op.batch_alter_table('invite_grant', copy_from=invite_grant) as batch_op:
+		batch_op.create_foreign_key(batch_op.f('fk_invite_grant_user_id_user'), 'user', ['user_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.drop_constraint('fk_invite_grant_invite_id_invite', type_='foreignkey')
+		batch_op.create_foreign_key(batch_op.f('fk_invite_grant_invite_id_invite'), 'invite', ['invite_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.alter_column('user_id', nullable=False, existing_type=sa.Integer())
+		batch_op.drop_column('user_dn')
+
+	with op.batch_alter_table('mfa_method', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_id', sa.Integer(), nullable=True))
+		batch_op.create_foreign_key(batch_op.f('fk_mfa_method_user_id_user'), 'user', ['user_id'], ['id'])
+	mfa_method = sa.Table('mfa_method', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('type', sa.Enum('RECOVERY_CODE', 'TOTP', 'WEBAUTHN', create_constraint=True, name='ck_mfa_method_type'), nullable=True),
+		sa.Column('created', sa.DateTime(), nullable=True),
+		sa.Column('name', sa.String(length=128), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.Column('dn', sa.String(length=128), nullable=False),
+		sa.Column('recovery_salt', sa.String(length=64), nullable=True),
+		sa.Column('recovery_hash', sa.String(length=256), nullable=True),
+		sa.Column('totp_key', sa.String(length=64), nullable=True),
+		sa.Column('webauthn_cred', sa.Text(), nullable=True),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_mfa_method_user_id_user')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_mfa_method'))
+	)
+	op.execute(mfa_method.update().values(user_id=sa.select([user_table.c.id]).where(mfa_method.c.dn==user_table.c.dn).as_scalar()))
+	op.execute(mfa_method.delete().where(mfa_method.c.user_id==None))
+	with op.batch_alter_table('mfa_method', copy_from=mfa_method) as batch_op:
+		batch_op.alter_column('user_id', nullable=False, existing_type=sa.Integer())
+		batch_op.alter_column('created', existing_type=sa.DateTime(), nullable=False)
+		batch_op.alter_column('type', existing_type=sa.Enum('RECOVERY_CODE', 'TOTP', 'WEBAUTHN', create_constraint=True, name='ck_mfa_method_type'), nullable=False)
+		batch_op.drop_constraint('fk_mfa_method_user_id_user', type_='foreignkey')
+		batch_op.create_foreign_key(batch_op.f('fk_mfa_method_user_id_user'), 'user', ['user_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.drop_column('dn')
+
+	with op.batch_alter_table('oauth2grant', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_id', sa.Integer(), nullable=True))
+	oauth2grant = sa.Table('oauth2grant', meta,
+		sa.Column('id', sa.Integer(), nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.Column('user_dn', sa.String(length=128), nullable=False),
+		sa.Column('client_id', sa.String(length=40), nullable=True),
+		sa.Column('code', sa.String(length=255), nullable=False),
+		sa.Column('redirect_uri', sa.String(length=255), nullable=True),
+		sa.Column('expires', sa.DateTime(), nullable=True),
+		sa.Column('_scopes', sa.Text(), nullable=True),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_oauth2grant')),
+		sa.Index('ix_oauth2grant_code', 'code')
+	)
+	op.execute(oauth2grant.update().values(user_id=sa.select([user_table.c.id]).where(oauth2grant.c.user_dn==user_table.c.dn).as_scalar()))
+	op.execute(oauth2grant.delete().where(oauth2grant.c.user_id==None))
+	with op.batch_alter_table('oauth2grant', copy_from=oauth2grant) as batch_op:
+		batch_op.create_foreign_key(batch_op.f('fk_oauth2grant_user_id_user'), 'user', ['user_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.alter_column('user_id', nullable=False, existing_type=sa.Integer())
+		batch_op.alter_column('_scopes', nullable=False, existing_type=sa.Text())
+		batch_op.alter_column('client_id', nullable=False, existing_type=sa.String(length=40))
+		batch_op.alter_column('expires', nullable=False, existing_type=sa.DateTime())
+		batch_op.alter_column('redirect_uri', nullable=False, existing_type=sa.String(length=255))
+		batch_op.drop_column('user_dn')
+
+	with op.batch_alter_table('oauth2token', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_id', sa.Integer(), nullable=True))
+	oauth2token = sa.Table('oauth2token', meta,
+		sa.Column('id', sa.Integer(), nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.Column('user_dn', sa.String(length=128), nullable=False),
+		sa.Column('client_id', sa.String(length=40), nullable=True),
+		sa.Column('token_type', sa.String(length=40), nullable=True),
+		sa.Column('access_token', sa.String(length=255), nullable=True),
+		sa.Column('refresh_token', sa.String(length=255), nullable=True),
+		sa.Column('expires', sa.DateTime(), nullable=True),
+		sa.Column('_scopes', sa.Text(), nullable=True),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_oauth2token')),
+		sa.UniqueConstraint('access_token', name=op.f('uq_oauth2token_access_token')),
+		sa.UniqueConstraint('refresh_token', name=op.f('uq_oauth2token_refresh_token'))
+	)
+	op.execute(oauth2token.update().values(user_id=sa.select([user_table.c.id]).where(oauth2token.c.user_dn==user_table.c.dn).as_scalar()))
+	op.execute(oauth2token.delete().where(oauth2token.c.user_id==None))
+	with op.batch_alter_table('oauth2token', copy_from=oauth2token) as batch_op:
+		batch_op.create_foreign_key(batch_op.f('fk_oauth2token_user_id_user'), 'user', ['user_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.alter_column('user_id', nullable=False, existing_type=sa.Integer())
+		batch_op.alter_column('_scopes', nullable=False, existing_type=sa.Text())
+		batch_op.alter_column('access_token', nullable=False, existing_type=sa.String(length=255))
+		batch_op.alter_column('client_id', nullable=False, existing_type=sa.String(length=40))
+		batch_op.alter_column('expires', nullable=False, existing_type=sa.DateTime())
+		batch_op.alter_column('refresh_token', nullable=False, existing_type=sa.String(length=255))
+		batch_op.alter_column('token_type', nullable=False, existing_type=sa.String(length=40))
+		batch_op.drop_column('user_dn')
+
+	with op.batch_alter_table('role', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('moderator_group_id', sa.Integer(), nullable=True))
+	role = sa.Table('role', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('name', sa.String(length=32), nullable=True),
+		sa.Column('description', sa.Text(), nullable=True),
+		sa.Column('moderator_group_id', sa.Integer(), nullable=True),
+		sa.Column('moderator_group_dn', sa.String(length=128), nullable=True),
+		sa.Column('locked', sa.Boolean(create_constraint=True, name=op.f('ck_role_locked')), nullable=False),
+		sa.Column('is_default', sa.Boolean(create_constraint=True, name=op.f('ck_role_is_default')), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_role')),
+		sa.UniqueConstraint('name', name=op.f('uq_role_name'))
+	)
+	op.execute(role.update().values(moderator_group_id=sa.select([group_table.c.id]).where(role.c.moderator_group_dn==group_table.c.dn).as_scalar()))
+	with op.batch_alter_table('role', copy_from=role) as batch_op:
+		batch_op.create_foreign_key(batch_op.f('fk_role_moderator_group_id_group'), 'group', ['moderator_group_id'], ['id'], onupdate='CASCADE', ondelete='SET NULL')
+		batch_op.alter_column('description', existing_type=sa.Text(), nullable=False)
+		batch_op.alter_column('name', existing_type=sa.String(length=32), nullable=False)
+		batch_op.drop_column('moderator_group_dn')
+
+	with op.batch_alter_table('signup', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_id', sa.Integer(), nullable=True))
+		batch_op.create_unique_constraint(batch_op.f('uq_signup_user_id'), ['user_id'])
+	signup = sa.Table('signup', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('token', sa.String(length=128), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('loginname', sa.Text(), nullable=True),
+		sa.Column('displayname', sa.Text(), nullable=True),
+		sa.Column('mail', sa.Text(), nullable=True),
+		sa.Column('pwhash', sa.Text(), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.Column('user_dn', sa.String(length=128), nullable=True),
+		sa.Column('type', sa.String(length=50), nullable=True),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_signup')),
+		sa.UniqueConstraint('user_id', name=op.f('uq_signup_user_id'))
+	)
+	op.execute(signup.update().values(user_id=sa.select([user_table.c.id]).where(signup.c.user_dn==user_table.c.dn).as_scalar()))
+	with op.batch_alter_table('signup', copy_from=signup) as batch_op:
+		batch_op.create_foreign_key(batch_op.f('fk_signup_user_id_user'), 'user', ['user_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.drop_column('user_dn')
+
+	with op.batch_alter_table('mailToken', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_id', sa.Integer(), nullable=True))
+	mail_token = sa.Table('mailToken', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('token', sa.String(length=128), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=True),
+		sa.Column('loginname', sa.String(length=32), nullable=True),
+		sa.Column('newmail', sa.String(length=255), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_mailToken'))
+	)
+	op.execute(mail_token.update().values(user_id=sa.select([user_table.c.id]).where(mail_token.c.loginname==user_table.c.loginname).as_scalar()))
+	op.execute(mail_token.delete().where(mail_token.c.user_id==None))
+	with op.batch_alter_table('mailToken', copy_from=mail_token) as batch_op:
+		batch_op.alter_column('user_id', nullable=False, existing_type=sa.Integer())
+		batch_op.create_foreign_key(batch_op.f('fk_mailToken_user_id_user'), 'user', ['user_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.drop_column('loginname')
+
+	with op.batch_alter_table('passwordToken', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_id', sa.Integer(), nullable=True))
+	password_token = sa.Table('passwordToken', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('token', sa.String(length=128), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('loginname', sa.String(length=32), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_passwordToken'))
+	)
+	op.execute(password_token.update().values(user_id=sa.select([user_table.c.id]).where(password_token.c.loginname==user_table.c.loginname).as_scalar()))
+	op.execute(password_token.delete().where(password_token.c.user_id==None))
+	with op.batch_alter_table('passwordToken', copy_from=password_token) as batch_op:
+		batch_op.alter_column('user_id', nullable=False, existing_type=sa.Integer())
+		batch_op.alter_column('created', existing_type=sa.DateTime(), nullable=False)
+		batch_op.create_foreign_key(batch_op.f('fk_passwordToken_user_id_user'), 'user', ['user_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.drop_column('loginname')
+
+	with op.batch_alter_table('group', copy_from=group_table) as batch_op:
+		batch_op.drop_column('dn')
+	with op.batch_alter_table('user', copy_from=user_table) as batch_op:
+		batch_op.drop_column('dn')
+
+	# These changes have nothing todo with the LDAP-to-DB migration, but since we add onupdate/ondelete clauses everywhere else ...
+	invite_roles = sa.Table('invite_roles', meta,
+		sa.Column('invite_id', sa.Integer(), nullable=False),
+		sa.Column('role_id', sa.Integer(), nullable=False),
+		sa.ForeignKeyConstraint(['invite_id'], ['invite.id'], name=op.f('fk_invite_roles_invite_id_invite')),
+		sa.ForeignKeyConstraint(['role_id'], ['role.id'], name=op.f('fk_invite_roles_role_id_role')),
+		sa.PrimaryKeyConstraint('invite_id', 'role_id', name=op.f('pk_invite_roles'))
+	)
+	with op.batch_alter_table('invite_roles', copy_from=invite_roles) as batch_op:
+		batch_op.drop_constraint('fk_invite_roles_role_id_role', type_='foreignkey')
+		batch_op.drop_constraint('fk_invite_roles_invite_id_invite', type_='foreignkey')
+		batch_op.create_foreign_key(batch_op.f('fk_invite_roles_role_id_role'), 'role', ['role_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.create_foreign_key(batch_op.f('fk_invite_roles_invite_id_invite'), 'invite', ['invite_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+	invite_signup = sa.Table('invite_signup', meta,
+		sa.Column('id', sa.Integer(), nullable=False),
+		sa.Column('invite_id', sa.Integer(), nullable=False),
+		sa.ForeignKeyConstraint(['id'], ['signup.id'], name=op.f('fk_invite_signup_id_signup'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['invite_id'], ['invite.id'], name=op.f('fk_invite_signup_invite_id_invite'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_invite_signup'))
+	)
+	with op.batch_alter_table('invite_signup', copy_from=invite_signup) as batch_op:
+		batch_op.drop_constraint('fk_invite_signup_id_signup', type_='foreignkey')
+		batch_op.drop_constraint('fk_invite_signup_invite_id_invite', type_='foreignkey')
+		batch_op.create_foreign_key(batch_op.f('fk_invite_signup_id_signup'), 'signup', ['id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.create_foreign_key(batch_op.f('fk_invite_signup_invite_id_invite'), 'invite', ['invite_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+	role_inclusion = sa.Table('role-inclusion', meta,
+		sa.Column('role_id', sa.Integer(), nullable=False),
+		sa.Column('included_role_id', sa.Integer(), nullable=False),
+		sa.ForeignKeyConstraint(['included_role_id'], ['role.id'], name=op.f('fk_role-inclusion_included_role_id_role'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['role_id'], ['role.id'], name=op.f('fk_role-inclusion_role_id_role'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('role_id', 'included_role_id', name=op.f('pk_role-inclusion'))
+	)
+	with op.batch_alter_table('role-inclusion', copy_from=role_inclusion) as batch_op:
+		batch_op.drop_constraint('fk_role-inclusion_role_id_role', type_='foreignkey')
+		batch_op.drop_constraint('fk_role-inclusion_included_role_id_role', type_='foreignkey')
+		batch_op.create_foreign_key(batch_op.f('fk_role-inclusion_role_id_role'), 'role', ['role_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.create_foreign_key(batch_op.f('fk_role-inclusion_included_role_id_role'), 'role', ['included_role_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+
+def downgrade():
+	# The downgrade is incomplete as it does not sync changes back to LDAP. The
+	# code is only here to keep check_migrations.py working.
+	if not current_app.testing:
+		raise Exception('Downgrade is not supported')
+
+	# Load LDAP data first, so we fail as early as possible
+	ldap_users = get_ldap_users()
+	ldap_groups = get_ldap_groups()
+
+	meta = sa.MetaData(bind=op.get_bind())
+
+	# These changes have nothing todo with the LDAP to DB migration
+	role_inclusion = sa.Table('role-inclusion', meta,
+		sa.Column('role_id', sa.Integer(), nullable=False),
+		sa.Column('included_role_id', sa.Integer(), nullable=False),
+		sa.ForeignKeyConstraint(['included_role_id'], ['role.id'], name=op.f('fk_role-inclusion_included_role_id_role'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['role_id'], ['role.id'], name=op.f('fk_role-inclusion_role_id_role'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('role_id', 'included_role_id', name=op.f('pk_role-inclusion'))
+	)
+	with op.batch_alter_table('role-inclusion', copy_from=role_inclusion) as batch_op:
+		batch_op.drop_constraint(batch_op.f('fk_role-inclusion_included_role_id_role'), type_='foreignkey')
+		batch_op.drop_constraint(batch_op.f('fk_role-inclusion_role_id_role'), type_='foreignkey')
+		batch_op.create_foreign_key('fk_role-inclusion_included_role_id_role', 'role', ['included_role_id'], ['id'])
+		batch_op.create_foreign_key('fk_role-inclusion_role_id_role', 'role', ['role_id'], ['id'])
+	invite_signup = sa.Table('invite_signup', meta,
+		sa.Column('id', sa.Integer(), nullable=False),
+		sa.Column('invite_id', sa.Integer(), nullable=False),
+		sa.ForeignKeyConstraint(['id'], ['signup.id'], name=op.f('fk_invite_signup_id_signup'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['invite_id'], ['invite.id'], name=op.f('fk_invite_signup_invite_id_invite'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_invite_signup'))
+	)
+	with op.batch_alter_table('invite_signup', copy_from=invite_signup) as batch_op:
+		batch_op.drop_constraint(batch_op.f('fk_invite_signup_invite_id_invite'), type_='foreignkey')
+		batch_op.drop_constraint(batch_op.f('fk_invite_signup_id_signup'), type_='foreignkey')
+		batch_op.create_foreign_key('fk_invite_signup_invite_id_invite', 'invite', ['invite_id'], ['id'])
+		batch_op.create_foreign_key('fk_invite_signup_id_signup', 'signup', ['id'], ['id'])
+	invite_roles = sa.Table('invite_roles', meta,
+		sa.Column('invite_id', sa.Integer(), nullable=False),
+		sa.Column('role_id', sa.Integer(), nullable=False),
+		sa.ForeignKeyConstraint(['invite_id'], ['invite.id'], name=op.f('fk_invite_roles_invite_id_invite'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['role_id'], ['role.id'], name=op.f('fk_invite_roles_role_id_role'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('invite_id', 'role_id', name=op.f('pk_invite_roles'))
+	)
+	with op.batch_alter_table('invite_roles', copy_from=invite_roles) as batch_op:
+		batch_op.drop_constraint(batch_op.f('fk_invite_roles_invite_id_invite'), type_='foreignkey')
+		batch_op.drop_constraint(batch_op.f('fk_invite_roles_role_id_role'), type_='foreignkey')
+		batch_op.create_foreign_key('fk_invite_roles_invite_id_invite', 'invite', ['invite_id'], ['id'])
+		batch_op.create_foreign_key('fk_invite_roles_role_id_role', 'role', ['role_id'], ['id'])
+
+	with op.batch_alter_table('user', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('dn', sa.String(length=128), nullable=True)) # temporarily nullable
+	user_table = sa.Table('user', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('dn', sa.String(length=128), nullable=False),
+		sa.Column('unix_uid', sa.Integer(), nullable=False),
+		sa.Column('loginname', sa.String(length=32), nullable=False),
+		sa.Column('displayname', sa.String(length=128), nullable=False),
+		sa.Column('mail', sa.String(length=128), nullable=False),
+		sa.Column('pwhash', sa.String(length=256), nullable=True),
+		sa.Column('is_service_user', sa.Boolean(create_constraint=True, name=op.f('ck_user_is_service_user')), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_user')),
+		sa.UniqueConstraint('loginname', name=op.f('uq_user_loginname')),
+		sa.UniqueConstraint('unix_uid', name=op.f('uq_user_unix_uid'))
+	)
+	user_dn_map_table = op.create_table('user_dn_map', # deleted later
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('dn', sa.String(length=128), nullable=False),
+		sa.Column('loginname', sa.String(length=32), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_user_dn_map')),
+		sa.UniqueConstraint('dn', name=op.f('uq_user_dn_map_dn')),
+		sa.UniqueConstraint('loginname', name=op.f('uq_user_dn_map_loginname'))
+	)
+	rows = [{'dn': user['dn'], 'loginname': user['loginname']} for user in ldap_users]
+	op.bulk_insert(user_dn_map_table, rows)
+	op.execute(user_table.update().values(dn=sa.select([user_dn_map_table.c.dn]).where(user_table.c.loginname==user_dn_map_table.c.loginname).as_scalar()))
+	with op.batch_alter_table('user', copy_from=user_table) as batch_op:
+		pass # Recreate table with dn not nullable
+	op.drop_table('user_dn_map')
+
+	with op.batch_alter_table('group', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('dn', sa.String(length=128), nullable=True)) # temporarily nullable
+	group_table = sa.Table('group', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('dn', sa.String(length=128), nullable=False),
+		sa.Column('unix_gid', sa.Integer(), nullable=False),
+		sa.Column('name', sa.String(length=32), nullable=False),
+		sa.Column('description', sa.String(length=128), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_group')),
+		sa.UniqueConstraint('name', name=op.f('uq_group_name')),
+		sa.UniqueConstraint('unix_gid', name=op.f('uq_group_unix_gid'))
+	)
+	group_dn_map_table = op.create_table('group_dn_map', # deleted later
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('dn', sa.String(length=128), nullable=False),
+		sa.Column('name', sa.String(length=32), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_group_dn_map')),
+		sa.UniqueConstraint('dn', name=op.f('uq_group_dn_map_dn')),
+		sa.UniqueConstraint('name', name=op.f('uq_group_dn_map_name'))
+	)
+	rows = [{'dn': group['dn'], 'name': group['name']} for group in ldap_groups]
+	op.bulk_insert(group_dn_map_table, rows)
+	op.execute(group_table.update().values(dn=sa.select([group_dn_map_table.c.dn]).where(group_table.c.name==group_dn_map_table.c.name).as_scalar()))
+	with op.batch_alter_table('group', copy_from=group_table) as batch_op:
+		pass # Recreate table with dn not nullable
+	op.drop_table('group_dn_map')
+
+	with op.batch_alter_table('passwordToken', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('loginname', sa.String(length=32), nullable=True))
+	password_token = sa.Table('passwordToken', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('token', sa.String(length=128), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('loginname', sa.String(length=32), nullable=True),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_passwordToken_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_passwordToken'))
+	)
+	op.execute(password_token.update().values(loginname=sa.select([user_table.c.loginname]).where(password_token.c.user_id==user_table.c.id).as_scalar()))
+	with op.batch_alter_table('passwordToken', copy_from=password_token) as batch_op:
+		batch_op.drop_constraint(batch_op.f('fk_passwordToken_user_id_user'), type_='foreignkey')
+		batch_op.alter_column('created', existing_type=sa.DateTime(), nullable=True)
+		batch_op.drop_column('user_id')
+
+	with op.batch_alter_table('mailToken', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('loginname', sa.String(length=32), nullable=True))
+	mail_token = sa.Table('mailToken', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('token', sa.String(length=128), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('newmail', sa.String(length=255), nullable=True),
+		sa.Column('loginname', sa.String(length=32), nullable=True),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_mailToken_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_mailToken'))
+	)
+	op.execute(mail_token.update().values(loginname=sa.select([user_table.c.loginname]).where(mail_token.c.user_id==user_table.c.id).as_scalar()))
+	with op.batch_alter_table('mailToken', copy_from=mail_token) as batch_op:
+		batch_op.drop_constraint(batch_op.f('fk_mailToken_user_id_user'), type_='foreignkey')
+		batch_op.drop_column('user_id')
+
+	with op.batch_alter_table('signup', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_dn', sa.String(length=128), nullable=True))
+	signup = sa.Table('signup', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('token', sa.String(length=128), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('loginname', sa.Text(), nullable=True),
+		sa.Column('displayname', sa.Text(), nullable=True),
+		sa.Column('mail', sa.Text(), nullable=True),
+		sa.Column('pwhash', sa.Text(), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.Column('user_dn', sa.String(length=128), nullable=True),
+		sa.Column('type', sa.String(length=50), nullable=True),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_signup_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_signup')),
+		sa.UniqueConstraint('user_id', name=op.f('uq_signup_user_id'))
+	)
+	op.execute(signup.update().values(user_dn=sa.select([user_table.c.dn]).where(signup.c.user_id==user_table.c.id).as_scalar()))
+	with op.batch_alter_table('signup', copy_from=signup) as batch_op:
+		batch_op.drop_constraint('fk_signup_user_id_user', 'foreignkey')
+		batch_op.drop_constraint('uq_signup_user_id', 'unique')
+		batch_op.drop_column('user_id')
+
+	with op.batch_alter_table('role', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('moderator_group_dn', sa.String(length=128), nullable=True))
+	role = sa.Table('role', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('name', sa.String(length=32), nullable=True),
+		sa.Column('description', sa.Text(), nullable=True),
+		sa.Column('moderator_group_id', sa.Integer(), nullable=True),
+		sa.Column('moderator_group_dn', sa.String(length=128), nullable=True),
+		sa.Column('locked', sa.Boolean(create_constraint=True, name=op.f('ck_role_locked')), nullable=False),
+		sa.Column('is_default', sa.Boolean(create_constraint=True, name=op.f('ck_role_is_default')), nullable=False),
+		sa.ForeignKeyConstraint(['moderator_group_id'], ['group.id'], name=op.f('fk_role_moderator_group_id_group'), onupdate='CASCADE', ondelete='SET NULL'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_role')),
+		sa.UniqueConstraint('name', name=op.f('uq_role_name'))
+	)
+	op.execute(role.update().values(moderator_group_dn=sa.select([group_table.c.dn]).where(role.c.moderator_group_id==group_table.c.id).as_scalar()))
+	with op.batch_alter_table('role', copy_from=role) as batch_op:
+		batch_op.alter_column('description', existing_type=sa.Text(), nullable=True)
+		batch_op.alter_column('name', existing_type=sa.String(length=32), nullable=True)
+		batch_op.drop_constraint('fk_role_moderator_group_id_group', 'foreignkey')
+		batch_op.drop_column('moderator_group_id')
+
+	with op.batch_alter_table('oauth2token', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_dn', sa.String(length=128), nullable=True))
+	oauth2token = sa.Table('oauth2token', meta,
+		sa.Column('id', sa.Integer(), nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('user_dn', sa.String(length=128), nullable=True),
+		sa.Column('client_id', sa.String(length=40), nullable=False),
+		sa.Column('token_type', sa.String(length=40), nullable=False),
+		sa.Column('access_token', sa.String(length=255), nullable=False),
+		sa.Column('refresh_token', sa.String(length=255), nullable=False),
+		sa.Column('expires', sa.DateTime(), nullable=False),
+		sa.Column('_scopes', sa.Text(), nullable=False),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_oauth2token_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_oauth2token')),
+		sa.UniqueConstraint('access_token', name=op.f('uq_oauth2token_access_token')),
+		sa.UniqueConstraint('refresh_token', name=op.f('uq_oauth2token_refresh_token'))
+	)
+	op.execute(oauth2token.update().values(user_dn=sa.select([user_table.c.dn]).where(oauth2token.c.user_id==user_table.c.id).as_scalar()))
+	op.execute(oauth2token.delete().where(oauth2token.c.user_dn==None))
+	with op.batch_alter_table('oauth2token', copy_from=oauth2token) as batch_op:
+		batch_op.alter_column('_scopes', nullable=True, existing_type=sa.Text())
+		batch_op.alter_column('access_token', nullable=True, existing_type=sa.String(length=255))
+		batch_op.alter_column('client_id', nullable=True, existing_type=sa.String(length=40))
+		batch_op.alter_column('expires', nullable=True, existing_type=sa.DateTime())
+		batch_op.alter_column('refresh_token', nullable=True, existing_type=sa.String(length=255))
+		batch_op.alter_column('token_type', nullable=True, existing_type=sa.String(length=40))
+		batch_op.drop_constraint('fk_oauth2token_user_id_user', 'foreignkey')
+		batch_op.drop_column('user_id')
+
+	with op.batch_alter_table('oauth2grant', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_dn', sa.String(length=128), nullable=True))
+	oauth2grant = sa.Table('oauth2grant', meta,
+		sa.Column('id', sa.Integer(), nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('user_dn', sa.String(length=128), nullable=True),
+		sa.Column('client_id', sa.String(length=40), nullable=False),
+		sa.Column('code', sa.String(length=255), nullable=False),
+		sa.Column('redirect_uri', sa.String(length=255), nullable=False),
+		sa.Column('expires', sa.DateTime(), nullable=False),
+		sa.Column('_scopes', sa.Text(), nullable=False),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_oauth2grant_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_oauth2grant')),
+		sa.Index('ix_oauth2grant_code', 'code')
+	)
+	op.execute(oauth2grant.update().values(user_dn=sa.select([user_table.c.dn]).where(oauth2grant.c.user_id==user_table.c.id).as_scalar()))
+	op.execute(oauth2grant.delete().where(oauth2grant.c.user_dn==None))
+	with op.batch_alter_table('oauth2grant', copy_from=oauth2grant) as batch_op:
+		batch_op.alter_column('_scopes', nullable=True, existing_type=sa.Text())
+		batch_op.alter_column('client_id', nullable=True, existing_type=sa.String(length=40))
+		batch_op.alter_column('expires', nullable=True, existing_type=sa.DateTime())
+		batch_op.alter_column('redirect_uri', nullable=True, existing_type=sa.String(length=255))
+		batch_op.drop_constraint('fk_oauth2grant_user_id_user', 'foreignkey')
+		batch_op.drop_column('user_id')
+
+	with op.batch_alter_table('mfa_method', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('dn', sa.String(length=128), nullable=True))
+	mfa_method = sa.Table('mfa_method', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('type', sa.Enum('RECOVERY_CODE', 'TOTP', 'WEBAUTHN', create_constraint=True, name='ck_mfa_method_type'), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('name', sa.String(length=128), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('dn', sa.String(length=128), nullable=True),
+		sa.Column('recovery_salt', sa.String(length=64), nullable=True),
+		sa.Column('recovery_hash', sa.String(length=256), nullable=True),
+		sa.Column('totp_key', sa.String(length=64), nullable=True),
+		sa.Column('webauthn_cred', sa.Text(), nullable=True),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_mfa_method_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_mfa_method'))
+	)
+	op.execute(mfa_method.update().values(dn=sa.select([user_table.c.dn]).where(mfa_method.c.user_id==user_table.c.id).as_scalar()))
+	op.execute(mfa_method.delete().where(mfa_method.c.dn==None))
+	with op.batch_alter_table('mfa_method', copy_from=mfa_method) as batch_op:
+		batch_op.drop_constraint('fk_mfa_method_user_id_user', 'foreignkey')
+		batch_op.alter_column('type', existing_type=sa.Enum('RECOVERY_CODE', 'TOTP', 'WEBAUTHN', create_constraint=True, name='ck_mfa_method_type'), nullable=True)
+		batch_op.alter_column('created', existing_type=sa.DateTime(), nullable=True)
+		batch_op.drop_column('user_id')
+
+	with op.batch_alter_table('invite_grant', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_dn', sa.String(length=128), nullable=True))
+	invite_grant = sa.Table('invite_grant', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('invite_id', sa.Integer(), nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('user_dn', sa.String(length=128), nullable=False),
+		sa.ForeignKeyConstraint(['invite_id'], ['invite.id'], name=op.f('fk_invite_grant_invite_id_invite'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_invite_grant_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_invite_grant'))
+	)
+	op.execute(invite_grant.update().values(user_dn=sa.select([user_table.c.dn]).where(invite_grant.c.user_id==user_table.c.id).as_scalar()))
+	op.execute(invite_grant.delete().where(invite_grant.c.user_dn==None))
+	with op.batch_alter_table('invite_grant', copy_from=invite_grant) as batch_op:
+		batch_op.drop_constraint('fk_invite_grant_user_id_user', 'foreignkey')
+		batch_op.drop_constraint(batch_op.f('fk_invite_grant_invite_id_invite'), type_='foreignkey')
+		batch_op.create_foreign_key('fk_invite_grant_invite_id_invite', 'invite', ['invite_id'], ['id'])
+		batch_op.drop_column('user_id')
+
+	with op.batch_alter_table('invite', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('creator_dn', sa.String(length=128), nullable=True))
+	invite = sa.Table('invite', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('token', sa.String(length=128), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('creator_id', sa.Integer(), nullable=True),
+		sa.Column('creator_dn', sa.String(length=128), nullable=True),
+		sa.Column('valid_until', sa.DateTime(), nullable=False),
+		sa.Column('single_use', sa.Boolean(create_constraint=True, name=op.f('ck_invite_single_use')), nullable=False),
+		sa.Column('allow_signup', sa.Boolean(create_constraint=True, name=op.f('ck_invite_allow_signup')), nullable=False),
+		sa.Column('used', sa.Boolean(create_constraint=True, name=op.f('ck_invite_used')), nullable=False),
+		sa.Column('disabled', sa.Boolean(create_constraint=True, name=op.f('ck_invite_disabled')), nullable=False),
+		sa.ForeignKeyConstraint(['creator_id'], ['user.id'], name=op.f('fk_invite_creator_id_user')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_invite')),
+		sa.UniqueConstraint('token', name=op.f('uq_invite_token'))
+	)
+	op.execute(invite.update().values(creator_dn=sa.select([user_table.c.dn]).where(invite.c.creator_id==user_table.c.id).as_scalar()))
+	with op.batch_alter_table('invite', copy_from=invite) as batch_op:
+		batch_op.drop_constraint('fk_invite_creator_id_user', 'foreignkey')
+		batch_op.drop_column('creator_id')
+
+	with op.batch_alter_table('device_login_confirmation', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_dn', sa.String(length=128), nullable=True))
+	device_login_confirmation = sa.Table('device_login_confirmation', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('initiation_id', sa.Integer(), nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('user_dn', sa.String(length=128), nullable=False),
+		sa.Column('code0', sa.String(length=32), nullable=False),
+		sa.Column('code1', sa.String(length=32), nullable=False),
+		sa.ForeignKeyConstraint(['initiation_id'], ['device_login_initiation.id'], name=op.f('fk_device_login_confirmation_initiation_id_')),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_device_login_confirmation_user_id_user')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_device_login_confirmation')),
+		sa.UniqueConstraint('initiation_id', 'code0', name='uq_device_login_confirmation_initiation_id_code0'),
+		sa.UniqueConstraint('initiation_id', 'code1', name='uq_device_login_confirmation_initiation_id_code1'),
+		sa.UniqueConstraint('user_dn', name=op.f('uq_device_login_confirmation_user_dn'))
+	)
+	op.execute(device_login_confirmation.update().values(user_dn=sa.select([user_table.c.dn]).where(device_login_confirmation.c.user_id==user_table.c.id).as_scalar()))
+	op.execute(device_login_confirmation.delete().where(device_login_confirmation.c.user_dn==None))
+	with op.batch_alter_table('device_login_confirmation', copy_from=device_login_confirmation) as batch_op:
+		batch_op.drop_constraint('fk_device_login_confirmation_user_id_user', 'foreignkey')
+		batch_op.drop_constraint('fk_device_login_confirmation_initiation_id_', type_='foreignkey')
+		batch_op.create_foreign_key('fk_device_login_confirmation_initiation_id_', 'device_login_initiation', ['initiation_id'], ['id'])
+		batch_op.drop_column('user_id')
+
+	with op.batch_alter_table('role_members', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('dn', sa.String(length=128), nullable=True))
+	op.rename_table('role_members', 'role-user')
+	role_members_table = sa.Table('role-user', meta,
+		sa.Column('dn', sa.String(length=128), nullable=True),
+		sa.Column('role_id', sa.Integer(), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_role_members_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['role_id'], ['role.id'], name=op.f('fk_role_members_role_id_role'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('role_id', 'user_id', name=op.f('pk_role_members'))
+	)
+	op.execute(role_members_table.update().values(dn=sa.select([user_table.c.dn]).where(role_members_table.c.user_id==user_table.c.id).as_scalar()))
+	op.execute(role_members_table.delete().where(role_members_table.c.dn==None))
+	with op.batch_alter_table('role-user', copy_from=role_members_table, recreate='always') as batch_op:
+		batch_op.drop_constraint('fk_role_members_role_id_role', 'foreignkey')
+		batch_op.create_foreign_key(batch_op.f('fk_role-user_role_id_role'), 'role', ['role_id'], ['id'])
+		batch_op.alter_column('dn', nullable=False, existing_type=sa.String(length=128))
+		batch_op.add_column(sa.Column('id', sa.Integer(), nullable=True))
+		batch_op.drop_constraint('fk_role_members_user_id_user', 'foreignkey')
+		batch_op.drop_constraint('pk_role_members', 'primary')
+		batch_op.create_primary_key('pk_role-user', ['id'])
+		batch_op.alter_column('id', autoincrement=True, nullable=False, existing_type=sa.Integer())
+		batch_op.create_unique_constraint(batch_op.f('uq_role-user_dn'), ['dn', 'role_id'])
+		batch_op.alter_column('role_id', existing_type=sa.Integer(), nullable=False)
+		batch_op.drop_column('user_id')
+
+	with op.batch_alter_table('role_groups', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('group_dn', sa.String(length=128), nullable=True))
+	op.rename_table('role_groups', 'role-group')
+	role_groups_table = sa.Table('role-group', meta,
+		sa.Column('role_id', sa.Integer(), nullable=False),
+		sa.Column('group_dn', sa.String(length=128), nullable=True),
+		sa.Column('group_id', sa.Integer(), nullable=False),
+		sa.Column('requires_mfa', sa.Boolean(create_constraint=False), nullable=False),
+		sa.CheckConstraint('requires_mfa in (0,1)', name=op.f('ck_role_groups_requires_mfa')),
+		sa.ForeignKeyConstraint(['group_id'], ['group.id'], name=op.f('fk_role_groups_group_id_group'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['role_id'], ['role.id'], name=op.f('fk_role_groups_role_id_role'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('role_id', 'group_id', name=op.f('pk_role_groups'))
+	)
+	op.execute(role_groups_table.update().values(group_dn=sa.select([group_table.c.dn]).where(role_groups_table.c.group_id==group_table.c.id).as_scalar()))
+	op.execute(role_groups_table.delete().where(role_groups_table.c.group_dn==None))
+	with op.batch_alter_table('role-group', copy_from=role_groups_table) as batch_op:
+		batch_op.drop_constraint('fk_role_groups_group_id_group', 'foreignkey')
+		batch_op.drop_constraint('fk_role_groups_role_id_role', 'foreignkey')
+		batch_op.drop_constraint('ck_role_groups_requires_mfa', 'check')
+		batch_op.create_check_constraint('ck_role-group_requires_mfa', role_groups_table.c.requires_mfa.in_([0,1]))
+		batch_op.alter_column('group_dn', nullable=False, existing_type=sa.String(length=128))
+		batch_op.drop_constraint('pk_role_groups', 'primary')
+		batch_op.create_primary_key('pk_role-group', ['role_id', 'group_dn'])
+		batch_op.create_foreign_key(batch_op.f('fk_role-group_role_id_role'), 'role', ['role_id'], ['id'])
+		batch_op.drop_column('group_id')
+
+	op.drop_table('mail_receive_address')
+	op.drop_table('mail_destination_address')
+	op.drop_table('mail')
+	op.drop_table('user_groups')
+	op.drop_table('user')
+	op.drop_table('group')

uffd/migrations/versions/87cb93a329bf_server_side_sessions.py

+"""Server-side sessions
+
+Revision ID: 87cb93a329bf
+Revises: 01fdd7820f29
+Create Date: 2024-03-23 23:57:44.019456
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = '87cb93a329bf'
+down_revision = '01fdd7820f29'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	op.create_table('session',
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('secret', sa.Text(), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('last_used', sa.DateTime(), nullable=False),
+		sa.Column('user_agent', sa.Text(), nullable=False),
+		sa.Column('ip_address', sa.Text(), nullable=True),
+		sa.Column('mfa_done', sa.Boolean(create_constraint=True), nullable=False),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_session_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_session'))
+	)
+
+def downgrade():
+	op.drop_table('session')

uffd/migrations/versions/99df71f0f4a0_migrate_device_login_from_user_to_session.py

+"""Migrate device login from user to session
+
+Revision ID: 99df71f0f4a0
+Revises: 87cb93a329bf
+Create Date: 2024-05-18 16:41:33.923207
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = '99df71f0f4a0'
+down_revision = '87cb93a329bf'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	op.drop_table('device_login_confirmation')
+	op.create_table('device_login_confirmation',
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('initiation_id', sa.Integer(), nullable=False),
+		sa.Column('session_id', sa.Integer(), nullable=False),
+		sa.Column('code0', sa.String(length=32), nullable=False),
+		sa.Column('code1', sa.String(length=32), nullable=False),
+		sa.ForeignKeyConstraint(['initiation_id'], ['device_login_initiation.id'], name='fk_device_login_confirmation_initiation_id_', onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['session_id'], ['session.id'], name=op.f('fk_device_login_confirmation_session_id_session'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_device_login_confirmation')),
+		sa.UniqueConstraint('initiation_id', 'code0', name='uq_device_login_confirmation_initiation_id_code0'),
+		sa.UniqueConstraint('initiation_id', 'code1', name='uq_device_login_confirmation_initiation_id_code1'),
+		sa.UniqueConstraint('session_id', name=op.f('uq_device_login_confirmation_session_id'))
+	)
+
+def downgrade():
+	# We don't drop and recreate the table here to improve fuzzy migration test coverage
+	with op.batch_alter_table('device_login_confirmation', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('user_id', sa.Integer(), nullable=True))
+	meta = sa.MetaData(bind=op.get_bind())
+	device_login_confirmation = sa.Table('device_login_confirmation', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('initiation_id', sa.Integer(), nullable=False),
+		sa.Column('session_id', sa.Integer(), nullable=False),
+		sa.Column('user_id', sa.Integer(), nullable=True),
+		sa.Column('code0', sa.String(length=32), nullable=False),
+		sa.Column('code1', sa.String(length=32), nullable=False),
+		sa.ForeignKeyConstraint(['initiation_id'], ['device_login_initiation.id'], name='fk_device_login_confirmation_initiation_id_', onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['session_id'], ['session.id'], name=op.f('fk_device_login_confirmation_session_id_session'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_device_login_confirmation')),
+		sa.UniqueConstraint('initiation_id', 'code0', name='uq_device_login_confirmation_initiation_id_code0'),
+		sa.UniqueConstraint('initiation_id', 'code1', name='uq_device_login_confirmation_initiation_id_code1'),
+		sa.UniqueConstraint('session_id', name=op.f('uq_device_login_confirmation_session_id'))
+	)
+	session = sa.table('session',
+		sa.column('id', sa.Integer),
+		sa.column('user_id', sa.Integer()),
+	)
+	op.execute(device_login_confirmation.update().values(user_id=sa.select([session.c.user_id]).where(device_login_confirmation.c.session_id==session.c.id).as_scalar()))
+	op.execute(device_login_confirmation.delete().where(device_login_confirmation.c.user_id==None))
+	with op.batch_alter_table('device_login_confirmation', copy_from=device_login_confirmation) as batch_op:
+		batch_op.alter_column('user_id', nullable=False, existing_type=sa.Integer())
+		batch_op.create_foreign_key('fk_device_login_confirmation_user_id_user', 'user', ['user_id'], ['id'], onupdate='CASCADE', ondelete='CASCADE')
+		batch_op.create_unique_constraint('uq_device_login_confirmation_user_id', ['user_id'])
+		batch_op.drop_constraint(batch_op.f('fk_device_login_confirmation_session_id_session'), type_='foreignkey')
+		batch_op.drop_constraint(batch_op.f('uq_device_login_confirmation_session_id'), type_='unique')
+		batch_op.drop_column('session_id')

uffd/migrations/versions/9f824f61d8ac_use_utc_for_datetime.py

+"""Use UTC for DateTime
+
+Revision ID: 9f824f61d8ac
+Revises: a60ce68b9214
+Create Date: 2022-08-16 00:51:04.635182
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = '9f824f61d8ac'
+down_revision = 'a60ce68b9214'
+branch_labels = None
+depends_on = None
+
+import datetime
+
+def localtime_to_utc(dt):
+	return dt.astimezone(datetime.timezone.utc).replace(tzinfo=None)
+
+def utc_to_localtime(dt):
+	return dt.replace(tzinfo=datetime.timezone.utc).astimezone().replace(tzinfo=None)
+
+def iter_rows_paged(table, pk='id', limit=1000):
+	conn = op.get_bind()
+	pk_column = getattr(table.c, pk)
+	last_pk = None
+	while True:
+		expr = table.select().order_by(pk_column).limit(limit)
+		if last_pk is not None:
+			expr = expr.where(pk_column > last_pk)
+		result = conn.execute(expr)
+		pk_index = list(result.keys()).index(pk)
+		rows = result.fetchall()
+		if not rows:
+			break
+		yield from rows
+		last_pk = rows[-1][pk_index]
+
+invite = sa.table('invite',
+	sa.column('id', sa.Integer),
+	sa.column('created', sa.DateTime),
+	sa.column('valid_until', sa.DateTime),
+)
+
+password_token = sa.table('passwordToken',
+	sa.column('id', sa.Integer),
+	sa.column('created', sa.DateTime),
+)
+
+mail_token = sa.table('mailToken',
+	sa.column('id', sa.Integer),
+	sa.column('created', sa.DateTime),
+)
+
+device_login_initiation = sa.table('device_login_initiation',
+	sa.column('id', sa.Integer),
+	sa.column('created', sa.DateTime),
+)
+
+signup = sa.table('signup',
+	sa.column('id', sa.Integer),
+	sa.column('created', sa.DateTime),
+)
+
+def upgrade():
+	for obj_id, created, valid_until in iter_rows_paged(invite):
+		op.execute(invite.update().where(invite.c.id==obj_id).values(
+			created=localtime_to_utc(created),
+			valid_until=localtime_to_utc(valid_until),
+		))
+	for obj_id, created in iter_rows_paged(password_token):
+		op.execute(password_token.update().where(password_token.c.id==obj_id).values(
+			created=localtime_to_utc(created),
+		))
+	for obj_id, created in iter_rows_paged(mail_token):
+		op.execute(mail_token.update().where(mail_token.c.id==obj_id).values(
+			created=localtime_to_utc(created),
+		))
+	for obj_id, created in iter_rows_paged(device_login_initiation):
+		op.execute(device_login_initiation.update().where(device_login_initiation.c.id==obj_id).values(
+			created=localtime_to_utc(created),
+		))
+	for obj_id, created in iter_rows_paged(signup):
+		op.execute(signup.update().where(signup.c.id==obj_id).values(
+			created=localtime_to_utc(created),
+		))
+
+def downgrade():
+	for obj_id, created, valid_until in iter_rows_paged(invite):
+		op.execute(invite.update().where(invite.c.id==obj_id).values(
+			created=utc_to_localtime(created),
+			valid_until=utc_to_localtime(valid_until),
+		))
+	for obj_id, created in iter_rows_paged(password_token):
+		op.execute(password_token.update().where(password_token.c.id==obj_id).values(
+			created=utc_to_localtime(created),
+		))
+	for obj_id, created in iter_rows_paged(mail_token):
+		op.execute(mail_token.update().where(mail_token.c.id==obj_id).values(
+			created=utc_to_localtime(created),
+		))
+	for obj_id, created in iter_rows_paged(device_login_initiation):
+		op.execute(device_login_initiation.update().where(device_login_initiation.c.id==obj_id).values(
+			created=utc_to_localtime(created),
+		))
+	for obj_id, created in iter_rows_paged(signup):
+		op.execute(signup.update().where(signup.c.id==obj_id).values(
+			created=utc_to_localtime(created),
+		))

uffd/migrations/versions/a29870f95175_initial_migration.py

+"""Initial migration.
+
+Revision ID: a29870f95175
+Revises: 
+Create Date: 2021-04-04 22:46:24.930356
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'a29870f95175'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table('invite',
+    sa.Column('token', sa.String(length=128), nullable=False),
+    sa.Column('created', sa.DateTime(), nullable=False),
+    sa.Column('valid_until', sa.DateTime(), nullable=False),
+    sa.Column('single_use', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('allow_signup', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('used', sa.Boolean(create_constraint=True), nullable=False),
+    sa.Column('disabled', sa.Boolean(create_constraint=True), nullable=False),
+    sa.PrimaryKeyConstraint('token')
+    )
+    op.create_table('mailToken',
+    sa.Column('token', sa.String(length=128), nullable=False),
+    sa.Column('created', sa.DateTime(), nullable=True),
+    sa.Column('loginname', sa.String(length=32), nullable=True),
+    sa.Column('newmail', sa.String(length=255), nullable=True),
+    sa.PrimaryKeyConstraint('token')
+    )
+    op.create_table('mfa_method',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('type', sa.Enum('RECOVERY_CODE', 'TOTP', 'WEBAUTHN', create_constraint=True, name='mfatype'), nullable=True),
+    sa.Column('created', sa.DateTime(), nullable=True),
+    sa.Column('name', sa.String(length=128), nullable=True),
+    sa.Column('dn', sa.String(length=128), nullable=True),
+    sa.Column('recovery_salt', sa.String(length=64), nullable=True),
+    sa.Column('recovery_hash', sa.String(length=256), nullable=True),
+    sa.Column('totp_key', sa.String(length=64), nullable=True),
+    sa.Column('webauthn_cred', sa.Text(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('oauth2grant',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('user_dn', sa.String(length=128), nullable=True),
+    sa.Column('client_id', sa.String(length=40), nullable=True),
+    sa.Column('code', sa.String(length=255), nullable=False),
+    sa.Column('redirect_uri', sa.String(length=255), nullable=True),
+    sa.Column('expires', sa.DateTime(), nullable=True),
+    sa.Column('_scopes', sa.Text(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('oauth2grant', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_oauth2grant_code'), ['code'], unique=False)
+
+    op.create_table('oauth2token',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('user_dn', sa.String(length=128), nullable=True),
+    sa.Column('client_id', sa.String(length=40), nullable=True),
+    sa.Column('token_type', sa.String(length=40), nullable=True),
+    sa.Column('access_token', sa.String(length=255), nullable=True),
+    sa.Column('refresh_token', sa.String(length=255), nullable=True),
+    sa.Column('expires', sa.DateTime(), nullable=True),
+    sa.Column('_scopes', sa.Text(), nullable=True),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('access_token'),
+    sa.UniqueConstraint('refresh_token')
+    )
+    op.create_table('passwordToken',
+    sa.Column('token', sa.String(length=128), nullable=False),
+    sa.Column('created', sa.DateTime(), nullable=True),
+    sa.Column('loginname', sa.String(length=32), nullable=True),
+    sa.PrimaryKeyConstraint('token')
+    )
+    op.create_table('ratelimit_event',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('timestamp', sa.DateTime(), nullable=True),
+    sa.Column('name', sa.String(length=128), nullable=True),
+    sa.Column('key', sa.String(length=128), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('role',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('name', sa.String(length=32), nullable=True),
+    sa.Column('description', sa.Text(), nullable=True),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('name')
+    )
+    op.create_table('signup',
+    sa.Column('token', sa.String(length=128), nullable=False),
+    sa.Column('created', sa.DateTime(), nullable=False),
+    sa.Column('loginname', sa.Text(), nullable=True),
+    sa.Column('displayname', sa.Text(), nullable=True),
+    sa.Column('mail', sa.Text(), nullable=True),
+    sa.Column('pwhash', sa.Text(), nullable=True),
+    sa.Column('user_dn', sa.String(length=128), nullable=True),
+    sa.Column('type', sa.String(length=50), nullable=True),
+    sa.PrimaryKeyConstraint('token')
+    )
+    op.create_table('invite_grant',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('invite_token', sa.String(length=128), nullable=False),
+    sa.Column('user_dn', sa.String(length=128), nullable=False),
+    sa.ForeignKeyConstraint(['invite_token'], ['invite.token'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('invite_roles',
+    sa.Column('invite_token', sa.String(length=128), nullable=False),
+    sa.Column('role_id', sa.Integer(), nullable=False),
+    sa.ForeignKeyConstraint(['invite_token'], ['invite.token'], ),
+    sa.ForeignKeyConstraint(['role_id'], ['role.id'], ),
+    sa.PrimaryKeyConstraint('invite_token', 'role_id')
+    )
+    op.create_table('invite_signup',
+    sa.Column('token', sa.String(length=128), nullable=False),
+    sa.Column('invite_token', sa.String(length=128), nullable=False),
+    sa.ForeignKeyConstraint(['invite_token'], ['invite.token'], ),
+    sa.ForeignKeyConstraint(['token'], ['signup.token'], ),
+    sa.PrimaryKeyConstraint('token')
+    )
+    op.create_table('role-group',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('dn', sa.String(length=128), nullable=True),
+    sa.Column('role_id', sa.Integer(), nullable=True),
+    sa.ForeignKeyConstraint(['role_id'], ['role.id'], ),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('dn', 'role_id')
+    )
+    op.create_table('role-user',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('dn', sa.String(length=128), nullable=True),
+    sa.Column('role_id', sa.Integer(), nullable=True),
+    sa.ForeignKeyConstraint(['role_id'], ['role.id'], ),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('dn', 'role_id')
+    )
+
+
+def downgrade():
+    op.drop_table('role-user')
+    op.drop_table('role-group')
+    op.drop_table('invite_signup')
+    op.drop_table('invite_roles')
+    op.drop_table('invite_grant')
+    op.drop_table('signup')
+    op.drop_table('role')
+    op.drop_table('ratelimit_event')
+    op.drop_table('passwordToken')
+    op.drop_table('oauth2token')
+    with op.batch_alter_table('oauth2grant', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_oauth2grant_code'))
+
+    op.drop_table('oauth2grant')
+    op.drop_table('mfa_method')
+    op.drop_table('mailToken')
+    op.drop_table('invite')

uffd/migrations/versions/a594d3b3e05b_added_role_locked.py

+"""added role.locked
+
+Revision ID: a594d3b3e05b
+Revises: 5cab70e95bf8
+Create Date: 2021-06-14 00:32:47.792794
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = 'a594d3b3e05b'
+down_revision = '5cab70e95bf8'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	with op.batch_alter_table('role', schema=None) as batch_op:
+		batch_op.add_column(sa.Column('locked', sa.Boolean(create_constraint=True, name=op.f('ck_role_locked')), nullable=False, default=False))
+
+def downgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	table = sa.Table('role', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('name', sa.String(length=32), nullable=True),
+		sa.Column('description', sa.Text(), nullable=True),
+		sa.Column('moderator_group_dn', sa.String(length=128), nullable=True),
+		sa.Column('locked', sa.Boolean(create_constraint=False), nullable=False),
+		sa.CheckConstraint('locked IN (0, 1)', name=op.f('ck_role_locked')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_role')),
+		sa.UniqueConstraint('name', name=op.f('uq_role_name'))
+	)
+	with op.batch_alter_table('role', copy_from=table) as batch_op:
+		batch_op.drop_constraint(op.f('ck_role_locked'), 'check')
+		batch_op.drop_column('locked')

uffd/migrations/versions/a60ce68b9214_fix_not_null_on_role_groups_group_id.py

+"""Fix NOT NULL on role_groups.group_id
+
+Revision 878b25c4fae7 wrongly left the column without a NOT NULL constraint.
+The missing constraint is only detected by newer Alembic versions.
+
+Revision ID: a60ce68b9214
+Revises: 704d1245331c
+Create Date: 2022-08-14 02:54:56.609390
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = 'a60ce68b9214'
+down_revision = '704d1245331c'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	role_groups = sa.Table('role_groups', meta,
+		sa.Column('role_id', sa.Integer(), nullable=False),
+		sa.Column('group_id', sa.Integer(), nullable=True),
+		sa.Column('requires_mfa', sa.Boolean(create_constraint=True), nullable=False),
+		sa.ForeignKeyConstraint(['group_id'], ['group.id'], name=op.f('fk_role_groups_group_id_group'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['role_id'], ['role.id'], name=op.f('fk_role_groups_role_id_role'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('role_id', 'group_id', name=op.f('pk_role_groups'))
+	)
+	with op.batch_alter_table('role_groups', copy_from=role_groups) as batch_op:
+		batch_op.alter_column('group_id', existing_type=sa.INTEGER(), nullable=False)
+
+def downgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	role_groups = sa.Table('role_groups', meta,
+		sa.Column('role_id', sa.Integer(), nullable=False),
+		sa.Column('group_id', sa.Integer(), nullable=False),
+		sa.Column('requires_mfa', sa.Boolean(create_constraint=True), nullable=False),
+		sa.ForeignKeyConstraint(['group_id'], ['group.id'], name=op.f('fk_role_groups_group_id_group'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.ForeignKeyConstraint(['role_id'], ['role.id'], name=op.f('fk_role_groups_role_id_role'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('role_id', 'group_id', name=op.f('pk_role_groups'))
+	)
+	with op.batch_alter_table('role_groups', copy_from=role_groups) as batch_op:
+		batch_op.alter_column('group_id', existing_type=sa.INTEGER(), nullable=True)

uffd/migrations/versions/a8c6b6e91c28_device_login.py

+"""device login
+
+Revision ID: a8c6b6e91c28
+Revises: bad6fc529510
+Create Date: 2021-07-19 14:37:02.559667
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = 'a8c6b6e91c28'
+down_revision = 'bad6fc529510'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	op.create_table('device_login_initiation',
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('type', sa.Enum('OAUTH2', create_constraint=True, name='devicelogintype'), nullable=False),
+		sa.Column('code0', sa.String(length=32), nullable=False),
+		sa.Column('code1', sa.String(length=32), nullable=False),
+		sa.Column('secret', sa.String(length=128), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('oauth2_client_id', sa.String(length=40), nullable=True),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_device_login_initiation')),
+		sa.UniqueConstraint('code0', name=op.f('uq_device_login_initiation_code0')),
+		sa.UniqueConstraint('code1', name=op.f('uq_device_login_initiation_code1'))
+	)
+	op.create_table('device_login_confirmation',
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('initiation_id', sa.Integer(), nullable=False),
+		sa.Column('user_dn', sa.String(length=128), nullable=False),
+		sa.Column('code0', sa.String(length=32), nullable=False),
+		sa.Column('code1', sa.String(length=32), nullable=False),
+		# name would be fk_device_login_confirmation_initiation_id_device_login_initiation, but that is too long for MySQL
+		sa.ForeignKeyConstraint(['initiation_id'], ['device_login_initiation.id'], name=op.f('fk_device_login_confirmation_initiation_id_')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_device_login_confirmation')),
+		sa.UniqueConstraint('initiation_id', 'code0', name=op.f('uq_device_login_confirmation_initiation_id_code0')),
+		sa.UniqueConstraint('initiation_id', 'code1', name=op.f('uq_device_login_confirmation_initiation_id_code1')),
+		sa.UniqueConstraint('user_dn', name=op.f('uq_device_login_confirmation_user_dn'))
+	)
+
+def downgrade():
+	op.drop_table('device_login_confirmation')
+	op.drop_table('device_login_initiation')

uffd/migrations/versions/a9b449776953_add_mfa_method_totp_last_counter.py

+"""Add mfa_method.totp_last_counter
+
+Revision ID: a9b449776953
+Revises: 23293f32b503
+Create Date: 2023-11-07 12:09:23.843865
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = 'a9b449776953'
+down_revision = '23293f32b503'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	mfa_method = sa.Table('mfa_method', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('type', sa.Enum('RECOVERY_CODE', 'TOTP', 'WEBAUTHN', create_constraint=True, name='ck_mfa_method_type'), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('name', sa.String(length=128), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('recovery_salt', sa.String(length=64), nullable=True),
+		sa.Column('recovery_hash', sa.String(length=256), nullable=True),
+		sa.Column('totp_key', sa.String(length=64), nullable=True),
+		sa.Column('webauthn_cred', sa.Text(), nullable=True),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_mfa_method_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_mfa_method'))
+	)
+	with op.batch_alter_table('mfa_method', copy_from=mfa_method) as batch_op:
+		batch_op.add_column(sa.Column('totp_last_counter', sa.Integer(), nullable=True))
+
+def downgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	mfa_method = sa.Table('mfa_method', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('type', sa.Enum('RECOVERY_CODE', 'TOTP', 'WEBAUTHN', create_constraint=True, name='ck_mfa_method_type'), nullable=False),
+		sa.Column('created', sa.DateTime(), nullable=False),
+		sa.Column('name', sa.String(length=128), nullable=True),
+		sa.Column('user_id', sa.Integer(), nullable=False),
+		sa.Column('recovery_salt', sa.String(length=64), nullable=True),
+		sa.Column('recovery_hash', sa.String(length=256), nullable=True),
+		sa.Column('totp_key', sa.String(length=64), nullable=True),
+		sa.Column('totp_last_counter', sa.Integer(), nullable=True),
+		sa.Column('webauthn_cred', sa.Text(), nullable=True),
+		sa.ForeignKeyConstraint(['user_id'], ['user.id'], name=op.f('fk_mfa_method_user_id_user'), onupdate='CASCADE', ondelete='CASCADE'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_mfa_method'))
+	)
+	with op.batch_alter_table('mfa_method', copy_from=mfa_method) as batch_op:
+		batch_op.drop_column('totp_last_counter')

uffd/migrations/versions/aeb07202a6c8_locking_and_new_id_allocation.py

+"""Locking and new ID allocation
+
+Revision ID: aeb07202a6c8
+Revises: 468995a9c9ee
+Create Date: 2022-10-30 13:24:39.864612
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from flask import current_app
+
+# revision identifiers, used by Alembic.
+revision = 'aeb07202a6c8'
+down_revision = '468995a9c9ee'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+	conn = op.get_bind()
+	meta = sa.MetaData(bind=conn)
+	user_table = sa.Table('user', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('unix_uid', sa.Integer(), nullable=False),
+		sa.Column('loginname', sa.String(length=32), nullable=False),
+		sa.Column('displayname', sa.String(length=128), nullable=False),
+		sa.Column('primary_email_id', sa.Integer(), nullable=False),
+		sa.Column('recovery_email_id', sa.Integer(), nullable=True),
+		sa.Column('pwhash', sa.Text(), nullable=True),
+		sa.Column('is_service_user', sa.Boolean(create_constraint=True), nullable=False),
+		sa.ForeignKeyConstraint(['primary_email_id'], ['user_email.id'], name=op.f('fk_user_primary_email_id_user_email'), onupdate='CASCADE'),
+		sa.ForeignKeyConstraint(['recovery_email_id'], ['user_email.id'], name=op.f('fk_user_recovery_email_id_user_email'), onupdate='CASCADE', ondelete='SET NULL'),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_user')),
+		sa.UniqueConstraint('loginname', name=op.f('uq_user_loginname')),
+		sa.UniqueConstraint('unix_uid', name=op.f('uq_user_unix_uid'))
+	)
+	group_table = sa.Table('group', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('unix_gid', sa.Integer(), nullable=False),
+		sa.Column('name', sa.String(length=32), nullable=False),
+		sa.Column('description', sa.String(length=128), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_group')),
+		sa.UniqueConstraint('name', name=op.f('uq_group_name')),
+		sa.UniqueConstraint('unix_gid', name=op.f('uq_group_unix_gid'))
+	)
+
+	lock_table = op.create_table('lock',
+		sa.Column('name', sa.String(length=32), nullable=False),
+		sa.PrimaryKeyConstraint('name', name=op.f('pk_lock'))
+	)
+	conn.execute(sa.insert(lock_table).values(name='uid_allocation'))
+	conn.execute(sa.insert(lock_table).values(name='gid_allocation'))
+
+	uid_allocation_table = op.create_table('uid_allocation',
+		sa.Column('id', sa.Integer(), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_uid_allocation'))
+	)
+	# Completely block range USER_MAX_UID to max UID currently in use (within
+	# the UID range) to account for users deleted in the past.
+	max_user_uid = conn.execute(
+		sa.select([sa.func.max(user_table.c.unix_uid)])
+		.where(user_table.c.unix_uid <= current_app.config['USER_MAX_UID'])
+	).scalar() or 0
+	insert_data = []
+	if max_user_uid:
+		for uid in range(current_app.config['USER_MIN_UID'], max_user_uid + 1):
+			insert_data.append({'id': uid})
+	op.bulk_insert(uid_allocation_table, insert_data)
+	max_service_uid = conn.execute(
+		sa.select([sa.func.max(user_table.c.unix_uid)])
+		.where(user_table.c.unix_uid <= current_app.config['USER_SERVICE_MAX_UID'])
+	).scalar() or 0
+	insert_data = []
+	if max_service_uid:
+		for uid in range(current_app.config['USER_SERVICE_MIN_UID'], max_service_uid + 1):
+			if uid < current_app.config['USER_MIN_UID'] or uid > max_user_uid:
+				insert_data.append({'id': uid})
+	op.bulk_insert(uid_allocation_table, insert_data)
+	# Also block all UIDs outside of both ranges that are in use
+	# (just to be sure, there should not be any)
+	conn.execute(sa.insert(uid_allocation_table).from_select(['id'],
+		sa.select([user_table.c.unix_uid]).where(sa.and_(
+			# Out of range for user
+			sa.or_(
+				user_table.c.unix_uid < current_app.config['USER_MIN_UID'],
+				user_table.c.unix_uid > current_app.config['USER_MAX_UID']
+			),
+			# and out of range for service user
+			sa.or_(
+				user_table.c.unix_uid < current_app.config['USER_SERVICE_MIN_UID'],
+				user_table.c.unix_uid > current_app.config['USER_SERVICE_MAX_UID']
+			),
+		))
+	))
+	# Normally we would pass copy_from=user_table, so we don't lose any metadata,
+	# but this somehow causes an AttributeError (Neither 'ColumnClause' object
+	# nor 'Comparator' object has an attribute 'copy'). Also, we don't seem to
+	# lose anything without it.
+	with op.batch_alter_table('user', schema=None) as batch_op:
+		batch_op.create_foreign_key(batch_op.f('fk_user_unix_uid_uid_allocation'), 'uid_allocation', ['unix_uid'], ['id'])
+
+	gid_allocation_table = op.create_table('gid_allocation',
+		sa.Column('id', sa.Integer(), nullable=False),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_gid_allocation'))
+	)
+	group_table = sa.table('group', sa.column('unix_gid'))
+	# Completely block range GROUP_MAX_GID to max GID currently in use (within
+	# the GID range) to account for groups deleted in the past.
+	max_group_gid = conn.execute(
+		sa.select([sa.func.max(group_table.c.unix_gid)])
+		.where(group_table.c.unix_gid <= current_app.config['GROUP_MAX_GID'])
+	).scalar() or 0
+	insert_data = []
+	if max_group_gid:
+		for gid in range(current_app.config['GROUP_MIN_GID'], max_group_gid + 1):
+			insert_data.append({'id': gid})
+	op.bulk_insert(gid_allocation_table, insert_data)
+	# Also block out-of-range GIDs
+	conn.execute(sa.insert(gid_allocation_table).from_select(['id'],
+		sa.select([group_table.c.unix_gid]).where(
+			sa.or_(
+				group_table.c.unix_gid < current_app.config['GROUP_MIN_GID'],
+				group_table.c.unix_gid > current_app.config['GROUP_MAX_GID']
+			)
+		)
+	))
+	# See comment on batch_alter_table above
+	with op.batch_alter_table('group', schema=None) as batch_op:
+		batch_op.create_foreign_key(batch_op.f('fk_group_unix_gid_gid_allocation'), 'gid_allocation', ['unix_gid'], ['id'])
+
+def downgrade():
+	meta = sa.MetaData(bind=op.get_bind())
+	user_table = sa.Table('user', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('unix_uid', sa.Integer(), nullable=False),
+		sa.Column('loginname', sa.String(length=32), nullable=False),
+		sa.Column('displayname', sa.String(length=128), nullable=False),
+		sa.Column('primary_email_id', sa.Integer(), nullable=False),
+		sa.Column('recovery_email_id', sa.Integer(), nullable=True),
+		sa.Column('pwhash', sa.Text(), nullable=True),
+		sa.Column('is_service_user', sa.Boolean(create_constraint=True), nullable=False),
+		sa.ForeignKeyConstraint(['primary_email_id'], ['user_email.id'], name=op.f('fk_user_primary_email_id_user_email'), onupdate='CASCADE'),
+		sa.ForeignKeyConstraint(['recovery_email_id'], ['user_email.id'], name=op.f('fk_user_recovery_email_id_user_email'), onupdate='CASCADE', ondelete='SET NULL'),
+		sa.ForeignKeyConstraint(['unix_uid'], ['uid_allocation.id'], name=op.f('fk_user_unix_uid_uid_allocation')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_user')),
+		sa.UniqueConstraint('loginname', name=op.f('uq_user_loginname')),
+		sa.UniqueConstraint('unix_uid', name=op.f('uq_user_unix_uid'))
+	)
+	group_table = sa.Table('group', meta,
+		sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+		sa.Column('unix_gid', sa.Integer(), nullable=False),
+		sa.Column('name', sa.String(length=32), nullable=False),
+		sa.Column('description', sa.String(length=128), nullable=False),
+		sa.ForeignKeyConstraint(['unix_gid'], ['gid_allocation.id'], name=op.f('fk_group_unix_gid_gid_allocation')),
+		sa.PrimaryKeyConstraint('id', name=op.f('pk_group')),
+		sa.UniqueConstraint('name', name=op.f('uq_group_name')),
+		sa.UniqueConstraint('unix_gid', name=op.f('uq_group_unix_gid'))
+	)
+	with op.batch_alter_table('group', copy_from=group_table) as batch_op:
+		batch_op.drop_constraint(batch_op.f('fk_group_unix_gid_gid_allocation'), type_='foreignkey')
+	with op.batch_alter_table('user', copy_from=user_table) as batch_op:
+		batch_op.drop_constraint(batch_op.f('fk_user_unix_uid_uid_allocation'), type_='foreignkey')
+	op.drop_table('gid_allocation')
+	op.drop_table('uid_allocation')
+	op.drop_table('lock')