Project authorization is unique per user, project
What does this MR do?
Currently the code allows duplicate <user,project,access_level> triples in ProjectAuthorization
records. This is invalid, and too loose which results in more complex querying than necessary.
This MR tightens the uniqueness validation to only allow <user,project> pairs in ProjectAuthorization
.
Duplicate records in production were removed a year ago.
I believe this query plan says we don't have any duplicates today.
Closes https://gitlab.com/gitlab-org/gitlab/-/issues/218747
Migration Dump
I would like to have copied the temporary index method used by @ahegyi here !55285 (diffs) except the project_authorizations
table does not have a primary key, or timestamps. There is currently a service that removes duplicates every two weeks if they exist, and .com did not have any duplicates when I checked.
$ rails db:migrate:up VERSION=20210812013042
== 20210812013042 RemoveDuplicateProjectAuthorizations: migrating =============
-- transaction_open?()
-> 0.0000s
-- index_exists?(:project_authorizations, [:project_id, :user_id], {:unique=>true, :name=>"index_unique_project_authorizations_on_project_id_user_id", :algorithm=>:concurrently})
-> 0.0025s
-- execute("SET statement_timeout TO 0")
-> 0.0006s
-- add_index(:project_authorizations, [:project_id, :user_id], {:unique=>true, :name=>"index_unique_project_authorizations_on_project_id_user_id", :algorithm=>:concurrently})
-> 0.0040s
-- execute("RESET statement_timeout")
-> 0.0005s
-- transaction_open?()
-> 0.0000s
-- indexes(:project_authorizations)
-> 0.0015s
-- remove_index(:project_authorizations, {:algorithm=>:concurrently, :name=>"index_project_authorizations_on_project_id_user_id"})
-> 0.0029s
== 20210812013042 RemoveDuplicateProjectAuthorizations: migrated (0.0198s) ====
$ rails db:migrate:down VERSION=20210812013042
== 20210812013042 RemoveDuplicateProjectAuthorizations: reverting =============
-- transaction_open?()
-> 0.0000s
-- index_exists?(:project_authorizations, [:project_id, :user_id], {:name=>"index_project_authorizations_on_project_id_user_id", :algorithm=>:concurrently})
-> 0.0027s
-- execute("SET statement_timeout TO 0")
-> 0.0005s
-- add_index(:project_authorizations, [:project_id, :user_id], {:name=>"index_project_authorizations_on_project_id_user_id", :algorithm=>:concurrently})
-> 0.0041s
-- execute("RESET statement_timeout")
-> 0.0005s
-- transaction_open?()
-> 0.0000s
-- indexes(:project_authorizations)
-> 0.0014s
-- remove_index(:project_authorizations, {:algorithm=>:concurrently, :name=>"index_unique_project_authorizations_on_project_id_user_id"})
-> 0.0027s
== 20210812013042 RemoveDuplicateProjectAuthorizations: reverted (0.0148s) ====
How to setup and validate locally (strongly suggested)
Does this MR meet the acceptance criteria?
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Security
Does this MR contain changes to processing or storing of credentials or tokens, authorization and authentication methods or other items described in the security review guidelines? If not, then delete this Security section.
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Label as security and @ mention @gitlab-com/gl-security/appsec
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The MR includes necessary changes to maintain consistency between UI, API, email, or other methods -
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