Use app host instead of asset host when rendering image blob or diff

app/helpers/blob_helper.rb

@@ -118,20 +118,24 @@ module BlobHelper
     icon("#{file_type_icon_class('file', mode, name)} fw")
   end
-  def blob_raw_path
+  def blob_raw_url(only_path: false)
     if @build && @entry
-      raw_project_job_artifacts_path(@project, @build, path: @entry.path)
+      raw_project_job_artifacts_url(@project, @build, path: @entry.path, only_path: only_path)
     elsif @snippet
       if @snippet.project_id
-        raw_project_snippet_path(@project, @snippet)
+        raw_project_snippet_url(@project, @snippet, only_path: only_path)
       else
-        raw_snippet_path(@snippet)
+        raw_snippet_url(@snippet, only_path: only_path)
       end
     elsif @blob
-      project_raw_path(@project, @id)
+      project_raw_url(@project, @id, only_path: only_path)
     end
   end
+  def blob_raw_path
+    blob_raw_url(only_path: true)
+  end
+
   # SVGs can contain malicious JavaScript; only include whitelisted
   # elements and attributes. Note that this whitelist is by no means complete
   # and may omit some elements.

app/helpers/diff_helper.rb

@@ -104,15 +104,23 @@ module DiffHelper
     ].join(' ').html_safe
   end
-  def diff_file_blob_raw_path(diff_file)
-    project_raw_path(@project, tree_join(diff_file.content_sha, diff_file.file_path))
+  def diff_file_blob_raw_url(diff_file, only_path: false)
+    project_raw_url(@project, tree_join(diff_file.content_sha, diff_file.file_path), only_path: only_path)
   end
-  def diff_file_old_blob_raw_path(diff_file)
+  def diff_file_old_blob_raw_url(diff_file, only_path: false)
     sha = diff_file.old_content_sha
     return unless sha
-    project_raw_path(@project, tree_join(diff_file.old_content_sha, diff_file.old_path))
+    project_raw_url(@project, tree_join(diff_file.old_content_sha, diff_file.old_path), only_path: only_path)
+  end
+
+  def diff_file_blob_raw_path(diff_file)
+    diff_file_blob_raw_url(diff_file, only_path: true)
+  end
+
+  def diff_file_old_blob_raw_path(diff_file)
+    diff_file_old_blob_raw_url(diff_file, only_path: true)
   end
   def diff_file_html_data(project, diff_file_path, diff_commit_id)

app/views/projects/blob/viewers/_image.html.haml

 .file-content.image_file
-  = image_tag(blob_raw_path, alt: viewer.blob.name)
+  -# Uses the full URL rather than the path, to prevent it from getting prefixed with the asset host.
+  = image_tag(blob_raw_url, alt: viewer.blob.name)

app/views/projects/diffs/_replaced_image_diff.html.haml

 - blob = diff_file.blob
 - old_blob = diff_file.old_blob
-- blob_raw_path = diff_file_blob_raw_path(diff_file)
-- old_blob_raw_path = diff_file_old_blob_raw_path(diff_file)
+- blob_raw_url = diff_file_blob_raw_url(diff_file)
+- old_blob_raw_url = diff_file_old_blob_raw_url(diff_file)
 - click_to_comment = local_assigns.fetch(:click_to_comment, true)
 - diff_view_data = local_assigns.fetch(:diff_view_data, '')
 - class_name = ''
@@ -13,7 +13,7 @@
   .two-up.view
     .wrap
       .frame.deleted
-        = image_tag(old_blob_raw_path, alt: diff_file.old_path, lazy: false)
+        = image_tag(old_blob_raw_url, alt: diff_file.old_path, lazy: false)
       %p.image-info.hide
         %span.meta-filesize= number_to_human_size(old_blob.size)
         |
@@ -23,7 +23,7 @@
         %strong H:
         %span.meta-height
     .wrap
-      = render partial: "projects/diffs/image_diff_frame", locals: { class_name: "added js-image-frame #{class_name}", position: position, note_type: DiffNote.name, image_path: blob_raw_path, alt: diff_file.new_path }
+      = render partial: "projects/diffs/image_diff_frame", locals: { class_name: "added js-image-frame #{class_name}", position: position, note_type: DiffNote.name, image_path: blob_raw_url, alt: diff_file.new_path }
       %p.image-info.hide
         %span.meta-filesize= number_to_human_size(blob.size)
         |
@@ -36,9 +36,9 @@
   .swipe.view.hide
     .swipe-frame
       .frame.deleted
-        = image_tag(old_blob_raw_path, alt: diff_file.old_path, lazy: false)
+        = image_tag(old_blob_raw_url, alt: diff_file.old_path, lazy: false)
       .swipe-wrap
-        = render partial: "projects/diffs/image_diff_frame", locals: { class_name: "added js-image-frame #{class_name}", position: position, note_type: DiffNote.name, image_path: blob_raw_path, alt: diff_file.new_path }
+        = render partial: "projects/diffs/image_diff_frame", locals: { class_name: "added js-image-frame #{class_name}", position: position, note_type: DiffNote.name, image_path: blob_raw_url, alt: diff_file.new_path }
       %span.swipe-bar
         %span.top-handle
         %span.bottom-handle
@@ -46,8 +46,8 @@
   .onion-skin.view.hide
     .onion-skin-frame
       .frame.deleted
-        = image_tag(old_blob_raw_path, alt: diff_file.old_path, lazy: false)
-      = render partial: "projects/diffs/image_diff_frame", locals: { class_name: "added js-image-frame #{class_name}", position: position, note_type: DiffNote.name, image_path: blob_raw_path, alt: diff_file.new_path }
+        = image_tag(old_blob_raw_url, alt: diff_file.old_path, lazy: false)
+      = render partial: "projects/diffs/image_diff_frame", locals: { class_name: "added js-image-frame #{class_name}", position: position, note_type: DiffNote.name, image_path: blob_raw_url, alt: diff_file.new_path }
       .controls
         .transparent
         .drag-track

app/views/projects/diffs/_single_image_diff.html.haml

 - blob = diff_file.blob
 - old_blob = diff_file.old_blob
-- blob_raw_path = diff_file_blob_raw_path(diff_file)
-- old_blob_raw_path = diff_file_old_blob_raw_path(diff_file)
+- blob_raw_url = diff_file_blob_raw_url(diff_file)
+- old_blob_raw_url = diff_file_old_blob_raw_url(diff_file)
 - click_to_comment = local_assigns.fetch(:click_to_comment, true)
 - diff_view_data = local_assigns.fetch(:diff_view_data, '')
 - class_name = ''
@@ -12,5 +12,5 @@
 .image.js-single-image{ data: diff_view_data }
   .wrap
     - single_class_name = diff_file.deleted_file? ? 'deleted' : 'added'
-    = render partial: "projects/diffs/image_diff_frame", locals: { class_name: "#{single_class_name} #{class_name} js-image-frame", position: position, note_type: DiffNote.name, image_path: blob_raw_path, alt: diff_file.file_path }
+    = render partial: "projects/diffs/image_diff_frame", locals: { class_name: "#{single_class_name} #{class_name} js-image-frame", position: position, note_type: DiffNote.name, image_path: blob_raw_url, alt: diff_file.file_path }
   %p.image-info= number_to_human_size(blob.size)

changelogs/unreleased/dm-image-blob-diff-full-url.yml

+---
+title: Use app host instead of asset host when rendering image blob or diff
+merge_request:
+author:
+type: fixed