1 files changed, 102 insertions, 0 deletions
diff --git a/lib/api/rubygem_packages.rb b/lib/api/rubygem_packages.rb
new file mode 100644
index 00000000000..7819aab879c
--- /dev/null
+++ b/lib/api/rubygem_packages.rb
@@ -0,0 +1,102 @@
+# frozen_string_literal: true
+
+###
+# API endpoints for the RubyGem package registry
+module API
+  class RubygemPackages < ::API::Base
+    include ::API::Helpers::Authentication
+    helpers ::API::Helpers::PackagesHelpers
+
+    feature_category :package_registry
+
+    # The Marshal version can be found by "#{Marshal::MAJOR_VERSION}.#{Marshal::MINOR_VERSION}"
+    # Updating the version should require a GitLab API version change.
+    MARSHAL_VERSION = '4.8'
+
+    FILE_NAME_REQUIREMENTS = {
+      file_name: API::NO_SLASH_URL_PART_REGEX
+    }.freeze
+
+    content_type :binary, 'application/octet-stream'
+
+    authenticate_with do |accept|
+      accept.token_types(:personal_access_token, :deploy_token, :job_token)
+            .sent_through(:http_token)
+    end
+
+    before do
+      require_packages_enabled!
+      authenticate!
+      not_found! unless Feature.enabled?(:rubygem_packages, user_project)
+    end
+
+    params do
+      requires :id, type: String, desc: 'The ID or full path of a project'
+    end
+    resource :projects, requirements: API::NAMESPACE_OR_PROJECT_REQUIREMENTS do
+      namespace ':id/packages/rubygems' do
+        desc 'Download the spec index file' do
+          detail 'This feature was introduced in GitLab 13.9'
+        end
+        params do
+          requires :file_name, type: String, desc: 'Spec file name'
+        end
+        get ":file_name", requirements: FILE_NAME_REQUIREMENTS do
+          # To be implemented in https://gitlab.com/gitlab-org/gitlab/-/issues/299267
+          not_found!
+        end
+
+        desc 'Download the gemspec file' do
+          detail 'This feature was introduced in GitLab 13.9'
+        end
+        params do
+          requires :file_name, type: String, desc: 'Gemspec file name'
+        end
+        get "quick/Marshal.#{MARSHAL_VERSION}/:file_name", requirements: FILE_NAME_REQUIREMENTS do
+          # To be implemented in https://gitlab.com/gitlab-org/gitlab/-/issues/299284
+          not_found!
+        end
+
+        desc 'Download the .gem package' do
+          detail 'This feature was introduced in GitLab 13.9'
+        end
+        params do
+          requires :file_name, type: String, desc: 'Package file name'
+        end
+        get "gems/:file_name", requirements: FILE_NAME_REQUIREMENTS do
+          # To be implemented in https://gitlab.com/gitlab-org/gitlab/-/issues/299283
+          not_found!
+        end
+
+        namespace 'api/v1' do
+          desc 'Authorize a gem upload from workhorse' do
+            detail 'This feature was introduced in GitLab 13.9'
+          end
+          post 'gems/authorize' do
+            # To be implemented in https://gitlab.com/gitlab-org/gitlab/-/issues/299263
+            not_found!
+          end
+
+          desc 'Upload a gem' do
+            detail 'This feature was introduced in GitLab 13.9'
+          end
+          post 'gems' do
+            # To be implemented in https://gitlab.com/gitlab-org/gitlab/-/issues/299263
+            not_found!
+          end
+
+          desc 'Fetch a list of dependencies' do
+            detail 'This feature was introduced in GitLab 13.9'
+          end
+          params do
+            optional :gems, type: String, desc: 'Comma delimited gem names'
+          end
+          get 'dependencies' do
+            # To be implemented in https://gitlab.com/gitlab-org/gitlab/-/issues/299282
+            not_found!
+          end
+        end
+      end
+    end
+  end
+end