Merge branch '8015-crunch2-mount' closes #8015
[arvados.git] / apps / workbench / app / controllers / application_controller.rb
index c7575176dec97fa4762bb3d730fd3ec0ef95b7ca..4c3d3f852eb2a737049f0a734e88de738a6f0b95 100644 (file)
@@ -16,7 +16,6 @@ class ApplicationController < ActionController::Base
   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
-  before_filter :check_user_notifications, except: ERROR_ACTIONS
   before_filter :load_filters_and_paging_params, except: ERROR_ACTIONS
   before_filter :find_object_by_uuid, except: [:create, :index, :choose] + ERROR_ACTIONS
   theme :select_theme
@@ -46,6 +45,9 @@ class ApplicationController < ActionController::Base
   end
 
   def render_error(opts={})
+    # Helpers can rely on the presence of @errors to know they're
+    # being used in an error page.
+    @errors ||= []
     opts[:status] ||= 500
     respond_to do |f|
       # json must come before html here, so it gets used as the
@@ -87,13 +89,14 @@ class ApplicationController < ActionController::Base
     # exception here than in a template.)
     unless current_user.nil?
       begin
-        build_project_trees
+        my_starred_projects current_user
+        build_my_wanted_projects_tree current_user
       rescue ArvadosApiClient::ApiError
         # Fall back to the default-setting code later.
       end
     end
-    @my_project_tree ||= []
-    @shared_project_tree ||= []
+    @starred_projects ||= []
+    @my_wanted_projects_tree ||= []
     render_error(err_opts)
   end
 
@@ -253,7 +256,7 @@ class ApplicationController < ActionController::Base
       f.html {
         if params['tab_pane']
           render_pane(if params['tab_pane'].is_a? Hash then params['tab_pane']["name"] else params['tab_pane'] end)
-        elsif request.method.in? ['GET', 'HEAD']
+        elsif request.request_method.in? ['GET', 'HEAD']
           render
         else
           redirect_to (params[:return_to] ||
@@ -265,6 +268,17 @@ class ApplicationController < ActionController::Base
     end
   end
 
+  def redirect_to uri, *args
+    if request.xhr?
+      if not uri.is_a? String
+        uri = polymorphic_url(uri)
+      end
+      render json: {href: uri}
+    else
+      super
+    end
+  end
+
   def choose
     params[:limit] ||= 40
     respond_to do |f|
@@ -384,26 +398,78 @@ class ApplicationController < ActionController::Base
     %w(Attributes Advanced)
   end
 
+  def set_share_links
+    @user_is_manager = false
+    @share_links = []
+
+    if @object.uuid != current_user.andand.uuid
+      begin
+        @share_links = Link.permissions_for(@object)
+        @user_is_manager = true
+      rescue ArvadosApiClient::AccessForbiddenException,
+        ArvadosApiClient::NotFoundException
+      end
+    end
+  end
+
+  def share_with
+    if not params[:uuids].andand.any?
+      @errors = ["No user/group UUIDs specified to share with."]
+      return render_error(status: 422)
+    end
+    results = {"success" => [], "errors" => []}
+    params[:uuids].each do |shared_uuid|
+      begin
+        Link.create(tail_uuid: shared_uuid, link_class: "permission",
+                    name: "can_read", head_uuid: @object.uuid)
+      rescue ArvadosApiClient::ApiError => error
+        error_list = error.api_response.andand[:errors]
+        if error_list.andand.any?
+          results["errors"] += error_list.map { |e| "#{shared_uuid}: #{e}" }
+        else
+          error_code = error.api_status || "Bad status"
+          results["errors"] << "#{shared_uuid}: #{error_code} response"
+        end
+      else
+        results["success"] << shared_uuid
+      end
+    end
+    if results["errors"].empty?
+      results.delete("errors")
+      status = 200
+    else
+      status = 422
+    end
+    respond_to do |f|
+      f.json { render(json: results, status: status) }
+    end
+  end
+
+  helper_method :is_starred
+  def is_starred
+    links = Link.where(tail_uuid: current_user.uuid,
+               head_uuid: @object.uuid,
+               link_class: 'star')
+
+    return links.andand.any?
+  end
+
   protected
 
+  helper_method :strip_token_from_path
   def strip_token_from_path(path)
     path.sub(/([\?&;])api_token=[^&;]*[&;]?/, '\1')
   end
 
   def redirect_to_login
-    respond_to do |f|
-      f.html {
-        if request.method.in? ['GET', 'HEAD']
-          redirect_to arvados_api_client.arvados_login_url(return_to: strip_token_from_path(request.url))
-        else
-          flash[:error] = "Either you are not logged in, or your session has timed out. I can't automatically log you in and re-attempt this request."
-          redirect_to :back
-        end
-      }
-      f.json {
-        @errors = ['You do not seem to be logged in. You did not supply an API token with this request, and your session (if any) has timed out.']
-        self.render_error status: 422
-      }
+    if request.xhr? or request.format.json?
+      @errors = ['You are not logged in. Most likely your session has timed out and you need to log in again.']
+      render_error status: 401
+    elsif request.method.in? ['GET', 'HEAD']
+      redirect_to arvados_api_client.arvados_login_url(return_to: strip_token_from_path(request.url))
+    else
+      flash[:error] = "Either you are not logged in, or your session has timed out. I can't automatically log you in and re-attempt this request."
+      redirect_to :back
     end
     false  # For convenience to return from callbacks
   end
@@ -448,7 +514,7 @@ class ApplicationController < ActionController::Base
       else
         @object = model_class.find(params[:uuid])
       end
-    rescue ArvadosApiClient::NotFoundException, RuntimeError => error
+    rescue ArvadosApiClient::NotFoundException, ArvadosApiClient::NotLoggedInException, RuntimeError => error
       if error.is_a?(RuntimeError) and (error.message !~ /^argument to find\(/)
         raise
       end
@@ -544,7 +610,8 @@ class ApplicationController < ActionController::Base
     end
   end
 
-  # Redirect to login/welcome if client provided expired API token (or none at all)
+  # Redirect to login/welcome if client provided expired API token (or
+  # none at all)
   def require_thread_api_token
     if Thread.current[:arvados_api_token]
       yield
@@ -554,15 +621,26 @@ class ApplicationController < ActionController::Base
       # log in" page instead of getting stuck in a redirect loop.
       session.delete :arvados_api_token
       redirect_to_login
+    elsif request.xhr?
+      # If we redirect to the welcome page, the browser will handle
+      # the 302 by itself and the client code will end up rendering
+      # the "welcome" page in some content area where it doesn't make
+      # sense. Instead, we send 401 ("authenticate and try again" or
+      # "display error", depending on how smart the client side is).
+      @errors = ['You are not logged in.']
+      render_error status: 401
     else
       redirect_to welcome_users_path(return_to: request.fullpath)
     end
   end
 
   def ensure_current_user_is_admin
-    unless current_user and current_user.is_admin
+    if not current_user
+      @errors = ['Not logged in']
+      render_error status: 401
+    elsif not current_user.is_admin
       @errors = ['Permission denied']
-      self.render_error status: 401
+      render_error status: 403
     end
   end
 
@@ -597,6 +675,7 @@ class ApplicationController < ActionController::Base
   end
 
   def check_user_profile
+    return true if !current_user
     if request.method.downcase != 'get' || params[:partial] ||
        params[:tab_pane] || params[:action_method] ||
        params[:action] == 'setup_popup'
@@ -638,6 +717,7 @@ class ApplicationController < ActionController::Base
   @@notification_tests = []
 
   @@notification_tests.push lambda { |controller, current_user|
+    return nil if Rails.configuration.shell_in_a_box_url
     AuthorizedKey.limit(1).where(authorized_user_uuid: current_user.uuid).each do
       return nil
     end
@@ -664,26 +744,12 @@ class ApplicationController < ActionController::Base
     }
   }
 
-  def check_user_notifications
-    return if params['tab_pane']
-
-    @notification_count = 0
-    @notifications = []
-
-    if current_user.andand.is_active
-      @showallalerts = false
-      @@notification_tests.each do |t|
-        a = t.call(self, current_user)
-        if a
-          @notification_count += 1
-          @notifications.push a
-        end
-      end
-    end
-
-    if @notification_count == 0
-      @notification_count = ''
-    end
+  helper_method :user_notifications
+  def user_notifications
+    return [] if @errors or not current_user.andand.is_active
+    @notifications ||= @@notification_tests.map do |t|
+      t.call(self, current_user)
+    end.compact
   end
 
   helper_method :all_projects
@@ -777,27 +843,63 @@ class ApplicationController < ActionController::Base
     {collections: c, owners: own}
   end
 
-  helper_method :my_project_tree
-  def my_project_tree
-    build_project_trees
-    @my_project_tree
+  helper_method :my_starred_projects
+  def my_starred_projects user
+    return if @starred_projects
+    links = Link.filter([['tail_uuid', '=', user.uuid],
+                         ['link_class', '=', 'star'],
+                         ['head_uuid', 'is_a', 'arvados#group']]).select(%w(head_uuid))
+    uuids = links.collect { |x| x.head_uuid }
+    starred_projects = Group.filter([['uuid', 'in', uuids]]).order('name')
+    @starred_projects = starred_projects.results
+  end
+
+  # If there are more than 200 projects that are readable by the user,
+  # build the tree using only the top 200+ projects owned by the user,
+  # from the top three levels.
+  # That is: get toplevel projects under home, get subprojects of
+  # these projects, and so on until we hit the limit.
+  def my_wanted_projects user, page_size=100
+    return @my_wanted_projects if @my_wanted_projects
+
+    from_top = []
+    uuids = [user.uuid]
+    depth = 0
+    @too_many_projects = false
+    @reached_level_limit = false
+    while from_top.size <= page_size*2
+      current_level = Group.filter([['group_class','=','project'],
+                                    ['owner_uuid', 'in', uuids]])
+                      .order('name').limit(page_size*2)
+      break if current_level.results.size == 0
+      @too_many_projects = true if current_level.items_available > current_level.results.size
+      from_top.concat current_level.results
+      uuids = current_level.results.collect { |x| x.uuid }
+      depth += 1
+      if depth >= 3
+        @reached_level_limit = true
+        break
+      end
+    end
+    @my_wanted_projects = from_top
   end
 
-  helper_method :shared_project_tree
-  def shared_project_tree
-    build_project_trees
-    @shared_project_tree
+  helper_method :my_wanted_projects_tree
+  def my_wanted_projects_tree user, page_size=100
+    build_my_wanted_projects_tree user, page_size
+    [@my_wanted_projects_tree, @too_many_projects, @reached_level_limit]
   end
 
-  def build_project_trees
-    return if @my_project_tree and @shared_project_tree
-    parent_of = {current_user.uuid => 'me'}
-    all_projects.each do |ob|
+  def build_my_wanted_projects_tree user, page_size=100
+    return @my_wanted_projects_tree if @my_wanted_projects_tree
+
+    parent_of = {user.uuid => 'me'}
+    my_wanted_projects(user, page_size).each do |ob|
       parent_of[ob.uuid] = ob.owner_uuid
     end
-    children_of = {false => [], 'me' => [current_user]}
-    all_projects.each do |ob|
-      if ob.owner_uuid != current_user.uuid and
+    children_of = {false => [], 'me' => [user]}
+    my_wanted_projects(user, page_size).each do |ob|
+      if ob.owner_uuid != user.uuid and
           not parent_of.has_key? ob.owner_uuid
         parent_of[ob.uuid] = false
       end
@@ -821,11 +923,8 @@ class ApplicationController < ActionController::Base
       end
       paths
     end
-    @my_project_tree =
+    @my_wanted_projects_tree =
       sorted_paths.call buildtree.call(children_of, 'me')
-    @shared_project_tree =
-      sorted_paths.call({'Projects shared with me' =>
-                          buildtree.call(children_of, false)})
   end
 
   helper_method :get_object
@@ -1013,6 +1112,39 @@ class ApplicationController < ActionController::Base
     @all_log_collections_for
   end
 
+  # Helper method to get one collection for the given portable_data_hash
+  # This is used to determine if a pdh is readable by the current_user
+  helper_method :collection_for_pdh
+  def collection_for_pdh pdh
+    raise ArgumentError, 'No input argument' unless pdh
+    preload_for_pdhs([pdh])
+    @all_pdhs_for[pdh] ||= []
+  end
+
+  # Helper method to preload one collection each for the given pdhs
+  # This is used to determine if a pdh is readable by the current_user
+  helper_method :preload_for_pdhs
+  def preload_for_pdhs pdhs
+    @all_pdhs_for ||= {}
+
+    raise ArgumentError, 'Argument is not an array' unless pdhs.is_a? Array
+    return @all_pdhs_for if pdhs.empty?
+
+    # if already preloaded for all of these pdhs, return
+    if not pdhs.select { |x| @all_pdhs_for[x].nil? }.any?
+      return @all_pdhs_for
+    end
+
+    pdhs.each do |x|
+      @all_pdhs_for[x] = []
+    end
+
+    Collection.select(%w(portable_data_hash)).where(portable_data_hash: pdhs).distinct().each do |collection|
+      @all_pdhs_for[collection.portable_data_hash] << collection
+    end
+    @all_pdhs_for
+  end
+
   # helper method to get object of a given dataclass and uuid
   helper_method :object_for_dataclass
   def object_for_dataclass dataclass, uuid
@@ -1032,10 +1164,14 @@ class ApplicationController < ActionController::Base
     return @objects_for if uuids.empty?
 
     # if already preloaded for all of these uuids, return
-    if not uuids.select { |x| @objects_for[x].nil? }.any?
+    if not uuids.select { |x| !@objects_for.include?(x) }.any?
       return @objects_for
     end
 
+    # preset all uuids to nil
+    uuids.each do |x|
+      @objects_for[x] = nil
+    end
     dataclass.where(uuid: uuids).each do |obj|
       @objects_for[obj.uuid] = obj
     end