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Signed-off-by: Rémy Coutable <remy@rymai.me>
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Signed-off-by: Rémy Coutable <remy@rymai.me>
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- While deleting a user, some of the user's associated records are moved to the
ghost user so they aren't deleted. The user is blocked before these records
are moved, to prevent the user from creating new records while the migration
is happening, and so preventing a data race.
- Previously, if the migration failed, the user would _remain_ blocked, which is
not the expected behavior. On the other hand, we can't just stick the block +
migration into a transaction, because we want the block to be committed before
the migration starts (for the data race reason mentioned above).
- One solution (implemented in this commit) is to block the user in a parent
transaction, migrate the associated records in a nested sub-transaction, and
then unblock the user in the parent transaction if the sub-transaction fails.
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Usage ping port
Closes #27750
See merge request !10481
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In the case of spammers, we really want a hard delete to avoid retaining spam.
Closes #31021
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This new class uses a Redis Hash instead of a Sorted Set.
Signed-off-by: Rémy Coutable <remy@rymai.me>
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activities
Refactored specs and added a post deployment migration to remove the activity users table.
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migration
It uses a user activity table instead of a column in users.
Tested with mySQL and postgreSQL
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Resolve "Deleting a user shouldn't delete associated records"
Closes #28695 and #30514
See merge request !10467
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1. Have `MigrateToGhostUser` be a service rather than a mixed-in module, to keep
things explicit. Specs testing the behavior of this class are moved into a
separate service spec file.
2. Add a `user.reported_abuse_reports` association to make the
`migrate_abuse_reports` method more consistent with the other `migrate_`
methods.
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1. When the user is deleted.
2. Refactor out code relating to "migrating records to the ghost user" into a
`MigrateToGhostUser` concern, which is tested using a shared example.
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user create_service
This param is passed to service in two places, one is in the build_user for non ldap oauth users. And the other is in the initial production admin user seed data.
Without this change, when setting up GitLab in a production environment, you were not being given the option of setting the root password on initial setup in the UI.
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deleted
When deleting a user, the following sequence could happen:
1. Project `mygroup/myproject` is scheduled for deletion
2. The group `mygroup` is deleted
3. Sidekiq worker runs to delete `mygroup/myproject`, but the namespace and routes have
been destroyed.
Closes #30334
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Signed-off-by: Rémy Coutable <remy@rymai.me>
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Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
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- Add a `destroy_user` ability. This didn't exist before, and was implicit in
other abilities (only admins could access the admin area, so only they could
destroy all users; a user can only access their own account page, and so can
destroy only themselves).
- Grant this ability to admins, and when the current user is trying to destroy
themselves. Disallow destroying ghost users in all cases.
- Modify the `Users::DestroyService` to check this ability. Also check it in
views to decide whether or not to show the "Delete User" button.
- Add a short summary of the Ghost User to the bio.
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- Have `Uniquify` take a block instead of a Proc/function. This is more
idiomatic than passing around a function in Ruby.
- Block a user before moving their issues to the ghost user. This avoids a data
race where an issue is created after the issues are migrated to the ghost user,
and before the destroy takes place.
- No need to migrate issues (to the ghost user) in a transaction, because
we're using `update_all`
- Other minor changes
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1. Use an advisory lock to guarantee the absence of concurrency in `User.ghost`,
to prevent data races from creating more than one ghost, or preventing the
creation of ghost users by causing validation errors.
2. Use `update_all` instead of updating issues one-by-one.
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- "Associated" issues are issues the user has created + issues that the
user is assigned to.
- Issues that a user owns are transferred to a "Ghost User" (just a
regular user with `state = 'ghost'` that is created when
`User.ghost` is called).
- Issues that a user is assigned to are moved to the "Unassigned" state.
- Fix a spec failure in `profile_spec` — a spec was asserting that when a user
is deleted, `User.count` decreases by 1. After this change, deleting a user
creates (potentially) a ghost user, causing `User.count` not to change. The
spec has been updated to look for the relevant user in the assertion.
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We saw from a recent incident that the `Users::DestroyService` would
attempt to delete a user over and over. Revoking the permissions
from the current user did not help. We should ensure that the
current user does, in fact, have permissions to delete the user.
Signed-off-by: Rémy Coutable <remy@rymai.me>
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* Changed name of delete_user_service and worker to destroy
* Move and change delete_group_service to Groups::DestroyService
* Rename Notes::DeleteService to Notes::DestroyService
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Nested groups feature improvemetns
See merge request !8448
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Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
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Previously a lease would only be obtained to update data. This could
lead to duplicate data being inserted, triggering a UNIQUE constraint
error. To work around this we now acquire a lease before performing
_any_ project authorization work, releasing it at the very end.
Fixes #25987
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This column used to be a 32 bits integer, allowing for only a maximum of
2 147 483 647 rows. Given enough users one can hit this limit pretty
quickly, as was the case for GitLab.com.
Changing this type to bigint (= 64 bits) would give us more space, but
we'd eventually hit the same limit given enough users and projects. A
much more sustainable solution is to simply drop the "id" column.
There were only 2 lines of code depending on this column being present,
and neither truly required it to be present. Instead the code now uses
the "project_id" column combined with the "user_id" column. This means
that instead of something like this:
DELETE FROM project_authorizations
WHERE user_id = X
AND id = Y;
We now run the following when removing rows:
DELETE FROM project_authorizations
WHERE user_id = X
AND project_id = Y;
Since both user_id and project_id are indexed this should not slow down
the DELETE query.
This commit also removes the "dependent: destroy" clause from the
"project_authorizations" relation in the User and Project models.
Keeping this prevents Rails from being able to remove data as it relies
on an "id" column being present. Since the "project_authorizations"
table has proper foreign keys set up (with cascading removals) we don't
need to depend on any Rails logic.
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Prior to this commit the refreshing of authorized projects was done in
two steps:
1. Remove existing authorizations
2. Insert a new list of all authorizations
This can lead to a high amount of dead tuples as every time all rows are
being replaced. For example, if a user with 100 authorizations is given
access to a new project this would lead to:
* 100 rows being removed
* 101 new rows being inserted
This commit changes the way this system works so it only removes/inserts
what is necessary. Using the above example this would lead to only 1 new
row being inserted, with the initial 100 being left untouched.
Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/25257
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