Fixes grack authentification under relative_url_root

Ref: https://github.com/gitlabhq/gitlabhq/commit/e6159b8725f99af78f446f8d33fa0e52b7780430
Ref: https://github.com/gitlabhq/gitlabhq/pull/3204
Ref: https://github.com/gitlabhq/gitlabhq/issues/1228

Add Rails' variable in application.rb to support relative url

This variable is used by assets compilation and other modules.

Note that user needs to change application.rb too

Restrict session cookie to the relative path if set.

Ref: https://github.com/gitlabhq/gitlabhq/commit/2c2f1e31856a4decdae469974f5bea8245316f7e

Fix Update attachment_uploader.rb bug with relative URL

See: https://github.com/gitlabhq/gitlabhq/commit/161afda3fa4fca58f396e9c3acbd72bc14490ace

Fix Wall relative bug with attachement files (javascript)

6 files changed, 18 insertions, 4 deletions

diff --git a/app/assets/javascripts/wall.js.coffee b/app/assets/javascripts/wall.js.coffee
index 4f71e6e0c35..4cc11331aca 100644
--- a/app/assets/javascripts/wall.js.coffee
+++ b/app/assets/javascripts/wall.js.coffee
@@ -64,7 +64,7 @@ class Wall
     template = template.replace('{{text}}', simpleFormat(note.body))
 
     if note.attachment
-      file = '<i class="icon-paper-clip"/><a href="/files/note/' + note.id + '/' + note.attachment + '">' + note.attachment + '</a>'
+      file = '<i class="icon-paper-clip"/><a href="' + gon.relative_url_root + '/files/note/' + note.id + '/' + note.attachment + '">' + note.attachment + '</a>'
     else
       file = ''
     template = template.replace('{{file}}', file)
diff --git a/app/uploaders/attachment_uploader.rb b/app/uploaders/attachment_uploader.rb
index c0afe9686f1..98794c9470b 100644
--- a/app/uploaders/attachment_uploader.rb
+++ b/app/uploaders/attachment_uploader.rb
@@ -21,7 +21,7 @@ class AttachmentUploader < CarrierWave::Uploader::Base
   end
 
   def secure_url
-    "/files/#{model.class.to_s.underscore}/#{model.id}/#{file.filename}"
+    Gitlab.config.gitlab.relative_url_root + "/files/#{model.class.to_s.underscore}/#{model.id}/#{file.filename}"
   end
 
   def file_storage?
diff --git a/config/application.rb b/config/application.rb
index d86fe561fa9..f3edca8c353 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -67,5 +67,9 @@ module Gitlab
 
     # Version of your assets, change this if you want to expire all your assets
     config.assets.version = '1.0'
+    
+    # Uncomment this if you are using a subdirectory
+    # Note that ENV['RAILS_RELATIVE_URL_ROOT'] in config/puma.rb may need to be changed
+    # config.relative_url_root = "/gitlab"
   end
 end
diff --git a/config/gitlab.yml.example b/config/gitlab.yml.example
index b6a8e68bf8e..c73307cabf4 100644
--- a/config/gitlab.yml.example
+++ b/config/gitlab.yml.example
@@ -21,6 +21,7 @@ production: &base
     # WARNING: This feature is no longer supported
     # Uncomment and customize to run in non-root path
     # Note that ENV['RAILS_RELATIVE_URL_ROOT'] in config/puma.rb may need to be changed
+    # You need to uncomment config.relative_url_root in config/application.rb
     # relative_url_root: /gitlab
 
     # Uncomment and customize if you can't use the default user to run GitLab (default: 'git')
diff --git a/config/initializers/session_store.rb b/config/initializers/session_store.rb
index e777ae2b78d..52a099c3e16 100644
--- a/config/initializers/session_store.rb
+++ b/config/initializers/session_store.rb
@@ -2,7 +2,8 @@
 
 Gitlab::Application.config.session_store :cookie_store, key: '_gitlab_session',
                                                       secure: Gitlab::Application.config.force_ssl,
-                                                      httponly: true
+                                                      httponly: true,
+                                                      path: (Rails.application.config.relative_url_root.nil?) ? '/' : Rails.application.config.relative_url_root
 
 # Use the database for sessions instead of the cookie-based default,
 # which shouldn't be used to store highly confidential information
diff --git a/lib/gitlab/backend/grack_auth.rb b/lib/gitlab/backend/grack_auth.rb
index a4f98ecd350..ddf370fbab8 100644
--- a/lib/gitlab/backend/grack_auth.rb
+++ b/lib/gitlab/backend/grack_auth.rb
@@ -15,7 +15,15 @@ module Grack
       @auth = Request.new(env)
 
       # Need this patch due to the rails mount
-      @env['PATH_INFO'] = @request.path
+      
+      # Need this if under RELATIVE_URL_ROOT
+      unless Gitlab.config.gitlab.relative_url_root.empty?
+        # If website is mounted using relative_url_root need to remove it first
+        @env['PATH_INFO'] = @request.path.sub(Gitlab.config.gitlab.relative_url_root,'')
+      else
+        @env['PATH_INFO'] = @request.path
+      end
+      
       @env['SCRIPT_NAME'] = ""
 
       auth!