bastodon/app/models/concerns/account_finder_concern.rb
Eugen Rochko 2a90da1837
Fix UniqueUsernameValidator comparison (#6926)
Comparison was downcasing only one side, therefore if previously
existing account had a non-lowercase spelling, it would be ignored
when checking for duplicates.

New rake task `mastodon:maintenance:find_duplicate_usernames` will
help find constraint violations that might have occured from the
presence of this bug.

Bump version to 2.3.3
2018-03-27 04:33:57 +02:00

62 lines
1.3 KiB
Ruby

# frozen_string_literal: true
module AccountFinderConcern
extend ActiveSupport::Concern
class_methods do
def find_local!(username)
find_local(username) || raise(ActiveRecord::RecordNotFound)
end
def find_remote!(username, domain)
find_remote(username, domain) || raise(ActiveRecord::RecordNotFound)
end
def find_local(username)
find_remote(username, nil)
end
def find_remote(username, domain)
AccountFinder.new(username, domain).account
end
end
class AccountFinder
attr_reader :username, :domain
def initialize(username, domain)
@username = username
@domain = domain
end
def account
scoped_accounts.order(id: :asc).take
end
private
def scoped_accounts
Account.unscoped.tap do |scope|
scope.merge! with_usernames
scope.merge! matching_username
scope.merge! matching_domain
end
end
def with_usernames
Account.where.not(username: '')
end
def matching_username
Account.where(Account.arel_table[:username].lower.eq username.to_s.downcase)
end
def matching_domain
if domain.nil?
Account.where(domain: nil)
else
Account.where(Account.arel_table[:domain].lower.eq domain.to_s.downcase)
end
end
end
end