X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/72d24b26cac507988ba6583064451b81d1854d78..cac035d7a171b90f0dc714d17b500b4062c0c58b:/apps/workbench/app/controllers/application_controller.rb

diff --git a/apps/workbench/app/controllers/application_controller.rb b/apps/workbench/app/controllers/application_controller.rb
index 4b775c6036..751b494bf4 100644
--- a/apps/workbench/app/controllers/application_controller.rb
+++ b/apps/workbench/app/controllers/application_controller.rb
@@ -12,6 +12,7 @@ class ApplicationController < ActionController::Base
   # Methods that don't require login should
   #   skip_around_filter :require_thread_api_token
   around_filter :require_thread_api_token, except: ERROR_ACTIONS
+  before_filter :set_cache_buster
   before_filter :accept_uuid_as_id_param, except: ERROR_ACTIONS
   before_filter :check_user_agreements, except: ERROR_ACTIONS
   before_filter :check_user_profile, except: ERROR_ACTIONS
@@ -31,6 +32,12 @@ class ApplicationController < ActionController::Base
                 with: :render_exception)
   end
 
+  def set_cache_buster
+    response.headers["Cache-Control"] = "no-cache, no-store, max-age=0, must-revalidate"
+    response.headers["Pragma"] = "no-cache"
+    response.headers["Expires"] = "Fri, 01 Jan 1990 00:00:00 GMT"
+  end
+
   def unprocessable(message=nil)
     @errors ||= []
 
@@ -98,8 +105,28 @@ class ApplicationController < ActionController::Base
     end
   end
 
+  # params[:order]:
+  #
+  # The order can be left empty to allow it to default.
+  # Or it can be a comma separated list of real database column names, one per model.
+  # Column names should always be qualified by a table name and a direction is optional, defaulting to asc
+  # (e.g. "collections.name" or "collections.name desc").
+  # If a column name is specified, that table will be sorted by that column.
+  # If there are objects from different models that will be shown (such as in Jobs and Pipelines tab),
+  # then a sort column name can optionally be specified for each model, passed as an comma-separated list (e.g. "jobs.script, pipeline_instances.name")
+  # Currently only one sort column name and direction can be specified for each model.
   def load_filters_and_paging_params
-    @order = params[:order] || 'created_at desc'
+    if params[:order].blank?
+      @order = 'created_at desc'
+    elsif params[:order].is_a? Array
+      @order = params[:order]
+    else
+      begin
+        @order = JSON.load(params[:order])
+      rescue
+        @order = params[:order].split(',')
+      end
+    end
     @order = [@order] unless @order.is_a? Array
 
     @limit ||= 200
@@ -372,12 +399,17 @@ class ApplicationController < ActionController::Base
     false  # For convenience to return from callbacks
   end
 
-  def using_specific_api_token(api_token)
+  def using_specific_api_token(api_token, opts={})
     start_values = {}
     [:arvados_api_token, :user].each do |key|
       start_values[key] = Thread.current[key]
     end
-    load_api_token(api_token)
+    if opts.fetch(:load_user, true)
+      load_api_token(api_token)
+    else
+      Thread.current[:arvados_api_token] = api_token
+      Thread.current[:user] = nil
+    end
     begin
       yield
     ensure
@@ -704,14 +736,16 @@ class ApplicationController < ActionController::Base
       end
     end
 
-    Job.filter([["uuid", "in", jobs.keys]]).each do |j|
-      jobs[j[:uuid]] = j
-    end
+    if jobs.keys.any?
+      Job.filter([["uuid", "in", jobs.keys]]).each do |j|
+        jobs[j[:uuid]] = j
+      end
 
-    pi.each do |pl|
-      pl.components.each do |k,v|
-        if v.is_a? Hash and v[:job]
-          v[:job] = jobs[v[:job][:uuid]]
+      pi.each do |pl|
+        pl.components.each do |k,v|
+          if v.is_a? Hash and v[:job]
+            v[:job] = jobs[v[:job][:uuid]]
+          end
         end
       end
     end
@@ -801,6 +835,12 @@ class ApplicationController < ActionController::Base
     crumbs = []
     current = @name_link || @object
     while current
+      # Halt if a group ownership loop is detected. API should refuse
+      # to produce this state, but it could still arise from a race
+      # condition when group ownership changes between our find()
+      # queries.
+      break if crumbs.collect(&:uuid).include? current.uuid
+
       if current.is_a?(Group) and current.group_class == 'project'
         crumbs.prepend current
       end