Add latest changes from gitlab-org/gitlab@master

1 files changed, 56 insertions, 0 deletions

diff --git a/app/services/users/update_canonical_email_service.rb b/app/services/users/update_canonical_email_service.rb
new file mode 100644
index 00000000000..1400fd58eb4
--- /dev/null
+++ b/app/services/users/update_canonical_email_service.rb
@@ -0,0 +1,56 @@
+# frozen_string_literal: true
+
+module Users
+  class UpdateCanonicalEmailService
+    extend ActiveSupport::Concern
+
+    INCLUDED_DOMAINS_PATTERN = [/gmail.com/].freeze
+
+    def initialize(user:)
+      raise ArgumentError.new("Please provide a user") unless user&.is_a?(User)
+
+      @user = user
+    end
+
+    def execute
+      return unless user.email
+      return unless user.email.match? Devise.email_regexp
+
+      canonical_email = canonicalize_email
+
+      unless canonical_email
+        # the canonical email doesn't exist, probably because the domain doesn't match
+        # destroy any UserCanonicalEmail record associated with this user
+        user.user_canonical_email&.delete
+        # nothing else to do here
+        return
+      end
+
+      if user.user_canonical_email
+        # update to the new value
+        user.user_canonical_email.canonical_email = canonical_email
+      else
+        user.build_user_canonical_email(canonical_email: canonical_email)
+      end
+    end
+
+    private
+
+    attr_reader :user
+
+    def canonicalize_email
+      email = user.email
+
+      portions = email.split('@')
+      username = portions.shift
+      rest = portions.join
+
+      regex = Regexp.union(INCLUDED_DOMAINS_PATTERN)
+      return unless regex.match?(rest)
+
+      no_dots = username.tr('.', '')
+      before_plus = no_dots.split('+')[0]
+      "#{before_plus}@#{rest}"
+    end
+  end
+end