Merge branch '44665-fix-db-trace-stream-by-raw-access' into 'master'

Fix `JobsController#raw` endpoint can not read traces in database

Closes #44665

See merge request gitlab-org/gitlab-ce!18101

app/controllers/projects/jobs_controller.rb

@@ -128,7 +128,7 @@ class Projects::JobsController < Projects::ApplicationController
         if stream.file?
           send_file stream.path, type: 'text/plain; charset=utf-8', disposition: 'inline'
         else
-          render_404
+          send_data stream.raw, type: 'text/plain; charset=utf-8', disposition: 'inline', filename: 'job.log'
         end
       end
     end

changelogs/unreleased/44665-fix-db-trace-stream-by-raw-access.yml

+---
+title: Fix `JobsController#raw` endpoint can not read traces in database
+merge_request: 18101
+author:
+type: fixed

lib/gitlab/ci/trace/stream.rb

@@ -8,7 +8,7 @@ module Gitlab
 
         attr_reader :stream
 
-        delegate :close, :tell, :seek, :size, :path, :url, :truncate, to: :stream, allow_nil: true
+        delegate :close, :tell, :seek, :size, :url, :truncate, to: :stream, allow_nil: true
 
         delegate :valid?, to: :stream, as: :present?, allow_nil: true
 
@@ -25,6 +25,10 @@ module Gitlab
           self.path.present?
         end
 
+        def path
+          self.stream.path if self.stream.respond_to?(:path)
+        end
+
         def limit(last_bytes = LIMIT_SIZE)
           if last_bytes < size
             stream.seek(-last_bytes, IO::SEEK_END)

spec/controllers/projects/jobs_controller_spec.rb

@@ -513,13 +513,30 @@ describe Projects::JobsController do
       end
     end
 
+    context 'when job has a trace in database' do
+      let(:job) { create(:ci_build, pipeline: pipeline) }
+
+      before do
+        job.update_column(:trace, 'Sample trace')
+      end
+
+      it 'send a trace file' do
+        response = subject
+
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(response.content_type).to eq 'text/plain; charset=utf-8'
+        expect(response.body).to eq 'Sample trace'
+      end
+    end
+
     context 'when job does not have a trace file' do
       let(:job) { create(:ci_build, pipeline: pipeline) }
 
       it 'returns not_found' do
         response = subject
 
-        expect(response).to have_gitlab_http_status(:not_found)
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(response.body).to eq ''
       end
     end