Add authorize to LabelType and NamespaceType

This also disables the cop with a reasoning in types where appropriate

app/graphql/types/ci/detailed_status_type.rb

 # frozen_string_literal: true
 module Types
   module Ci
+    # rubocop: disable Graphql/AuthorizeTypes
+    # This is presented through `PipelineType` that has its own authorization
     class DetailedStatusType < BaseObject
       graphql_name 'DetailedStatus'
 
@@ -13,5 +15,6 @@ module Types
       field :text, GraphQL::STRING_TYPE, null: false
       field :tooltip, GraphQL::STRING_TYPE, null: false, method: :status_tooltip
     end
+    # rubocop: enable Graphql/AuthorizeTypes
   end
 end

app/graphql/types/issue_state_enum.rb

 # frozen_string_literal: true
 
 module Types
+  # rubocop: disable Graphql/AuthorizeTypes
+  # This is a BaseEnum through IssuableEnum, so it does not need authorization
   class IssueStateEnum < IssuableStateEnum
     graphql_name 'IssueState'
     description 'State of a GitLab issue'
   end
+  # rubocop: enable Graphql/AuthorizeTypes
 end

app/graphql/types/label_type.rb

@@ -4,6 +4,8 @@ module Types
   class LabelType < BaseObject
     graphql_name 'Label'
 
+    authorize :read_label
+
     field :description, GraphQL::STRING_TYPE, null: true
     markdown_field :description_html, null: true
     field :title, GraphQL::STRING_TYPE, null: false

app/graphql/types/merge_request_state_enum.rb

 # frozen_string_literal: true
 
 module Types
+  # rubocop: disable Graphql/AuthorizeTypes
+  # This is a BaseEnum through IssuableEnum, so it does not need authorization
   class MergeRequestStateEnum < IssuableStateEnum
     graphql_name 'MergeRequestState'
     description 'State of a GitLab merge request'
 
     value 'merged'
   end
+  # rubocop: enable Graphql/AuthorizeTypes
 end

app/graphql/types/metadata_type.rb

@@ -4,6 +4,8 @@ module Types
   class MetadataType < ::Types::BaseObject
     graphql_name 'Metadata'
 
+    authorize :read_instance_metadata
+
     field :version, GraphQL::STRING_TYPE, null: false
     field :revision, GraphQL::STRING_TYPE, null: false
   end

app/graphql/types/namespace_type.rb

@@ -4,6 +4,8 @@ module Types
   class NamespaceType < BaseObject
     graphql_name 'Namespace'
 
+    authorize :read_namespace
+
     field :id, GraphQL::ID_TYPE, null: false
 
     field :name, GraphQL::STRING_TYPE, null: false

app/graphql/types/notes/diff_position_type.rb

@@ -2,6 +2,8 @@
 
 module Types
   module Notes
+    # rubocop: disable Graphql/AuthorizeTypes
+    # This is presented through `NoteType` that has its own authorization
     class DiffPositionType < BaseObject
       graphql_name 'DiffPosition'
 
@@ -42,5 +44,6 @@ module Types
             description: "The total height of the image",
             resolve: -> (position, _args, _ctx) { position.height if position.on_image? }
     end
+    # rubocop: enable Graphql/AuthorizeTypes
   end
 end

app/graphql/types/project_type.rb

@@ -67,7 +67,7 @@ module Types
     field :only_allow_merge_if_all_discussions_are_resolved, GraphQL::BOOLEAN_TYPE, null: true
     field :printing_merge_request_link_enabled, GraphQL::BOOLEAN_TYPE, null: true
 
-    field :namespace, Types::NamespaceType, null: false
+    field :namespace, Types::NamespaceType, null: true
     field :group, Types::GroupType, null: true
 
     field :statistics, Types::ProjectStatisticsType,

app/graphql/types/query_type.rb

@@ -22,10 +22,7 @@ module Types
     field :metadata, Types::MetadataType,
           null: true,
           resolver: Resolvers::MetadataResolver,
-          description: 'Metadata about GitLab' do |*args|
-
-      authorize :read_instance_metadata
-    end
+          description: 'Metadata about GitLab'
 
     field :echo, GraphQL::STRING_TYPE, null: false, function: Functions::Echo.new
   end

app/graphql/types/task_completion_status.rb

 # frozen_string_literal: true
 
 module Types
+  # rubocop: disable Graphql/AuthorizeTypes
+  # This is used in `IssueType` and `MergeRequestType` both of which have their
+  # own authorization
   class TaskCompletionStatus < BaseObject
     graphql_name 'TaskCompletionStatus'
     description 'Completion status of tasks'
@@ -8,4 +11,5 @@ module Types
     field :count, GraphQL::INT_TYPE, null: false
     field :completed_count, GraphQL::INT_TYPE, null: false
   end
+  # rubocop: enable Graphql/AuthorizeTypes
 end

app/graphql/types/tree/blob_type.rb

 # frozen_string_literal: true
 module Types
   module Tree
+    # rubocop: disable Graphql/AuthorizeTypes
+    # This is presented through `Repository` that has its own authorization
     class BlobType < BaseObject
       implements Types::Tree::EntryType
 
@@ -12,6 +14,7 @@ module Types
       field :lfs_oid, GraphQL::STRING_TYPE, null: true, resolve: -> (blob, args, ctx) do
         Gitlab::Graphql::Loaders::BatchLfsOidLoader.new(blob.repository, blob.id).find
       end
+      # rubocop: enable Graphql/AuthorizeTypes
     end
   end
 end

app/graphql/types/tree/submodule_type.rb

 # frozen_string_literal: true
 module Types
   module Tree
+    # rubocop: disable Graphql/AuthorizeTypes
+    # This is presented through `Repository` that has its own authorization
     class SubmoduleType < BaseObject
       implements Types::Tree::EntryType
 
       graphql_name 'Submodule'
     end
+    # rubocop: enable Graphql/AuthorizeTypes
   end
 end

app/graphql/types/tree/tree_entry_type.rb

 # frozen_string_literal: true
 module Types
   module Tree
+    # rubocop: disable Graphql/AuthorizeTypes
+    # This is presented through `Repository` that has its own authorization
     class TreeEntryType < BaseObject
       implements Types::Tree::EntryType
 
@@ -11,5 +13,6 @@ module Types
 
       field :web_url, GraphQL::STRING_TYPE, null: true
     end
+    # rubocop: enable Graphql/AuthorizeTypes
   end
 end

app/graphql/types/tree/tree_type.rb

 # frozen_string_literal: true
 module Types
   module Tree
+    # rubocop: disable Graphql/AuthorizeTypes
+    # This is presented through `Repository` that has its own authorization
     class TreeType < BaseObject
       graphql_name 'Tree'
 
@@ -13,6 +15,7 @@ module Types
       field :blobs, Types::Tree::BlobType.connection_type, null: false, resolve: -> (obj, args, ctx) do
         Gitlab::Graphql::Representation::TreeEntry.decorate(obj.blobs, obj.repository)
       end
+      # rubocop: enable Graphql/AuthorizeTypes
     end
   end
 end

spec/graphql/types/label_type_spec.rb

@@ -7,4 +7,6 @@ describe GitlabSchema.types['Label'] do
 
     is_expected.to have_graphql_fields(*expected_fields)
   end
+
+  it { is_expected.to require_graphql_authorizations(:read_label) }
 end

spec/graphql/types/metadata_type_spec.rb

@@ -2,4 +2,5 @@ require 'spec_helper'
 
 describe GitlabSchema.types['Metadata'] do
   it { expect(described_class.graphql_name).to eq('Metadata') }
+  it { is_expected.to require_graphql_authorizations(:read_instance_metadata) }
 end

spec/graphql/types/namespace_type_spec.rb

@@ -13,4 +13,6 @@ describe GitlabSchema.types['Namespace'] do
 
     is_expected.to have_graphql_fields(*expected_fields)
   end
+
+  it { is_expected.to require_graphql_authorizations(:read_namespace) }
 end

spec/graphql/types/query_type_spec.rb

@@ -34,9 +34,5 @@ describe GitlabSchema.types['Query'] do
       is_expected.to have_graphql_type(Types::MetadataType)
       is_expected.to have_graphql_resolver(Resolvers::MetadataResolver)
     end
-
-    it 'authorizes with read_instance_metadata' do
-      is_expected.to require_graphql_authorizations(:read_instance_metadata)
-    end
   end
 end

spec/requests/api/graphql/namespace/projects_spec.rb

@@ -58,9 +58,7 @@ describe 'getting projects', :nested_groups do
       it 'finds only public projects' do
         post_graphql(query, current_user: nil)
 
-        expect(graphql_data['namespace']['projects']['edges'].size).to eq(1)
-        project = graphql_data['namespace']['projects']['edges'][0]['node']
-        expect(project['id']).to eq(public_project.to_global_id.to_s)
+        expect(graphql_data['namespace']).to be_nil
       end
     end
   end