1 files changed, 70 insertions, 0 deletions
diff --git a/lib/gitlab/static_site_editor/config/generated_config.rb b/lib/gitlab/static_site_editor/config/generated_config.rb
new file mode 100644
index 00000000000..f3dce74a32f
--- /dev/null
+++ b/lib/gitlab/static_site_editor/config/generated_config.rb
@@ -0,0 +1,70 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module StaticSiteEditor
+    module Config
+      class GeneratedConfig
+        SUPPORTED_EXTENSIONS = %w[.md].freeze
+
+        def initialize(repository, ref, path, return_url)
+          @repository = repository
+          @ref = ref
+          @path = path
+          @return_url = return_url
+        end
+
+        def data
+          merge_requests_illustration_path = ActionController::Base.helpers.image_path('illustrations/merge_requests.svg')
+          {
+            branch: ref,
+            path: path,
+            commit_id: commit_id,
+            project_id: project.id,
+            project: project.path,
+            namespace: project.namespace.full_path,
+            return_url: sanitize_url(return_url),
+            is_supported_content: supported_content?.to_s,
+            base_url: Gitlab::Routing.url_helpers.project_show_sse_path(project, full_path),
+            merge_requests_illustration_path: merge_requests_illustration_path
+          }
+        end
+
+        private
+
+        attr_reader :repository, :ref, :path, :return_url
+
+        delegate :project, to: :repository
+
+        def commit_id
+          repository.commit(ref)&.id if ref
+        end
+
+        def supported_content?
+          master_branch? && extension_supported? && file_exists?
+        end
+
+        def master_branch?
+          ref == 'master'
+        end
+
+        def extension_supported?
+          return true if path.end_with?('.md.erb') && Feature.enabled?(:sse_erb_support, project)
+
+          SUPPORTED_EXTENSIONS.any? { |ext| path.end_with?(ext) }
+        end
+
+        def file_exists?
+          commit_id.present? && !repository.blob_at(commit_id, path).nil?
+        end
+
+        def full_path
+          "#{ref}/#{path}"
+        end
+
+        def sanitize_url(url)
+          url if Gitlab::UrlSanitizer.valid_web?(url)
+        end
+      end
+    end
+  end
+end