Merge branch '41899-api-endpoint-for-importing-a-project-export' into 'master'

Resolve "API endpoint for importing a project export"

Closes #41899

See merge request gitlab-org/gitlab-ce!17025

3 files changed, 73 insertions, 0 deletions

diff --git a/lib/api/api.rb b/lib/api/api.rb
index e953f3d2eca..754549f72f0 100644
--- a/lib/api/api.rb
+++ b/lib/api/api.rb
@@ -138,6 +138,7 @@ module API
     mount ::API::PagesDomains
     mount ::API::Pipelines
     mount ::API::PipelineSchedules
+    mount ::API::ProjectImport
     mount ::API::ProjectHooks
     mount ::API::Projects
     mount ::API::ProjectMilestones
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 03abc1b95c5..45c737c6c29 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -91,6 +91,13 @@ module API
       expose :created_at
     end
 
+    class ProjectImportStatus < ProjectIdentity
+      expose :import_status
+
+      # TODO: Use `expose_nil` once we upgrade the grape-entity gem
+      expose :import_error, if: lambda { |status, _ops| status.import_error }
+    end
+
     class BasicProjectDetails < ProjectIdentity
       include ::API::ProjectsRelationBuilder
 
diff --git a/lib/api/project_import.rb b/lib/api/project_import.rb
new file mode 100644
index 00000000000..c32e2f26ae3
--- /dev/null
+++ b/lib/api/project_import.rb
@@ -0,0 +1,65 @@
+module API
+  class ProjectImport < Grape::API
+    include PaginationParams
+
+    helpers do
+      def import_params
+        declared_params(include_missing: false)
+      end
+
+      def file_is_valid?
+        import_params[:file] && import_params[:file]['tempfile'].respond_to?(:read)
+      end
+
+      def validate_file!
+        render_api_error!('The file is invalid', 400) unless file_is_valid?
+      end
+    end
+
+    before do
+      forbidden! unless Gitlab::CurrentSettings.import_sources.include?('gitlab_project')
+    end
+
+    resource :projects, requirements: API::PROJECT_ENDPOINT_REQUIREMENTS do
+      params do
+        requires :path, type: String, desc: 'The new project path and name'
+        requires :file, type: File, desc: 'The project export file to be imported'
+        optional :namespace, type: String, desc: "The ID or name of the namespace that the project will be imported into. Defaults to the current user's namespace."
+      end
+      desc 'Create a new project import' do
+        detail 'This feature was introduced in GitLab 10.6.'
+        success Entities::ProjectImportStatus
+      end
+      post 'import' do
+        validate_file!
+
+        Gitlab::QueryLimiting.whitelist('https://gitlab.com/gitlab-org/gitlab-ce/issues/42437')
+
+        namespace = if import_params[:namespace]
+                      find_namespace!(import_params[:namespace])
+                    else
+                      current_user.namespace
+                    end
+
+        project_params = import_params.merge(namespace_id: namespace.id,
+                                             file: import_params[:file]['tempfile'])
+        project = ::Projects::GitlabProjectsImportService.new(current_user, project_params).execute
+
+        render_api_error!(project.errors.full_messages&.first, 400) unless project.saved?
+
+        present project, with: Entities::ProjectImportStatus
+      end
+
+      params do
+        requires :id, type: String, desc: 'The ID of a project'
+      end
+      desc 'Get a project export status' do
+        detail 'This feature was introduced in GitLab 10.6.'
+        success Entities::ProjectImportStatus
+      end
+      get ':id/import' do
+        present user_project, with: Entities::ProjectImportStatus
+      end
+    end
+  end
+end