Use a hashed version identifier in IIIF manifest

.dassie/config/initializers/riiif.rb

@@ -1,12 +1,10 @@
 # frozen_string_literal: true
-ActiveSupport::Reloader.to_prepare do
-  Riiif::Image.file_resolver = Riiif::HttpFileResolver.new
+Rails.application.reloader.to_prepare do
   Riiif::Image.info_service = lambda do |id, _file|
     # id will look like a path to a pcdm:file
     # (e.g. rv042t299%2Ffiles%2F6d71677a-4f80-42f1-ae58-ed1063fd79c7)
     # but we just want the id for the FileSet it's attached to.
 
-    # Capture everything before the first slash
     fs_id = id.sub(/\A([^\/]*)\/.*/, '\1')
     resp = Hyrax::SolrService.get("id:#{fs_id}")
     doc = resp['response']['docs'].first
@@ -15,14 +13,10 @@
   end
 
   if Hyrax.config.use_valkyrie?
-    # Use Valkyrie adapter to make sure file is available locally. Riiif will just open it then
-    # id comes in with the format "FILE_SET_ID/files/FILE_ID"
-    Riiif::Image.file_resolver.id_to_uri = lambda do |id|
-      file_metadata = Hyrax.query_service.find_by(id: id.split('/').last)
-      file = Hyrax.storage_adapter.find_by(id: file_metadata.file_identifier)
-      file.disk_path.to_s
-    end
+    Riiif::Image.file_resolver = Hyrax::RiiifFileResolver.new
   else
+    Riiif::Image.file_resolver = Riiif::HttpFileResolver.new
+
     Riiif::Image.file_resolver.id_to_uri = lambda do |id|
       Hyrax::Base.id_to_uri(CGI.unescape(id)).tap do |url|
         Rails.logger.info "Riiif resolved #{id} to #{url}"
@@ -35,5 +29,5 @@
   Riiif.not_found_image = Rails.root.join('app', 'assets', 'images', 'us_404.svg')
   Riiif.unauthorized_image = Rails.root.join('app', 'assets', 'images', 'us_404.svg')
 
-  Riiif::Engine.config.cache_duration = 365.days
+  Riiif::Engine.config.cache_duration = 1.day
 end

.koppie/config/initializers/riiif.rb

@@ -1,12 +1,10 @@
 # frozen_string_literal: true
-ActiveSupport::Reloader.to_prepare do
-  Riiif::Image.file_resolver = Riiif::HttpFileResolver.new
+Rails.application.reloader.to_prepare do
   Riiif::Image.info_service = lambda do |id, _file|
     # id will look like a path to a pcdm:file
     # (e.g. rv042t299%2Ffiles%2F6d71677a-4f80-42f1-ae58-ed1063fd79c7)
     # but we just want the id for the FileSet it's attached to.
 
-    # Capture everything before the first slash
     fs_id = id.sub(/\A([^\/]*)\/.*/, '\1')
     resp = Hyrax::SolrService.get("id:#{fs_id}")
     doc = resp['response']['docs'].first
@@ -15,24 +13,21 @@
   end
 
   if Hyrax.config.use_valkyrie?
-    # Use Valkyrie adapter to make sure file is available locally. Riiif will just open it then
-    # id comes in with the format "FILE_SET_ID/files/FILE_ID"
-    Riiif::Image.file_resolver.id_to_uri = lambda do |id|
-      file_metadata = Hyrax.query_service.find_by(id: id.split('/').last)
-      file = Hyrax.storage_adapter.find_by(id: file_metadata.file_identifier)
-      file.disk_path.to_s
-    end
+    Riiif::Image.file_resolver = Hyrax::RiiifFileResolver.new
   else
+    Riiif::Image.file_resolver = Riiif::HttpFileResolver.new
+
     Riiif::Image.file_resolver.id_to_uri = lambda do |id|
       Hyrax::Base.id_to_uri(CGI.unescape(id)).tap do |url|
         Rails.logger.info "Riiif resolved #{id} to #{url}"
       end
     end
   end
+
   Riiif::Image.authorization_service = Hyrax::IiifAuthorizationService
 
   Riiif.not_found_image = Rails.root.join('app', 'assets', 'images', 'us_404.svg')
   Riiif.unauthorized_image = Rails.root.join('app', 'assets', 'images', 'us_404.svg')
 
-  Riiif::Engine.config.cache_duration = 365.days
+  Riiif::Engine.config.cache_duration = 1.day
 end

app/controllers/concerns/hyrax/works_controller_behavior.rb

@@ -139,8 +139,7 @@ def manifest
       json = iiif_manifest_builder.manifest_for(presenter: iiif_manifest_presenter)
 
       respond_to do |wants|
-        wants.json { render json: json }
-        wants.html { render json: json }
+        wants.any { render json: json }
       end
     end
 

app/controllers/hyrax/file_sets_controller.rb

@@ -179,6 +179,8 @@ def attempt_update_valkyrie
 
     def revert_valkyrie
       Hyrax::VersioningService.create(file_metadata, current_user, Hyrax.storage_adapter.find_by(id: params[:revision]))
+      # update_metadata
+      Hyrax.publisher.publish("file.uploaded", metadata: file_set.original_file)
       true
     end
 

app/indexers/hyrax/valkyrie_file_set_indexer.rb

@@ -17,7 +17,7 @@ def to_solr # rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Met
 
         # Metadata from the FileSet
         solr_doc['file_ids_ssim']                = resource.file_ids&.map(&:to_s)
-        solr_doc['original_file_id_ssi']         = original_file_id
+        solr_doc['original_file_id_ssi']         = resource.iiif_id
         solr_doc['extracted_text_id_ssi']        = resource.extracted_text_id.to_s
         solr_doc['hasRelatedMediaFragment_ssim'] = resource.representative_id.to_s
         solr_doc['hasRelatedImage_ssim']         = resource.thumbnail_id.to_s
@@ -106,11 +106,6 @@ def to_solr # rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Met
 
     private
 
-    # Convert Valkyrie Original File Pointer to versioned url syntax expected by the iiif_presenter
-    def original_file_id
-      "#{resource.id}/files/#{resource.original_file_id}"
-    end
-
     def file_format(file)
       if file.mime_type.present? && file.format_label.present?
         "#{file.mime_type.split('/').last} (#{file.format_label.join(', ')})"

app/models/concerns/hyrax/riiif_file.rb

@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+module Hyrax
+  # Adds file locking to Riiif::File
+  # @see RiiifFileResolver
+  class RiiifFile < Riiif::File
+    include ActiveSupport::Benchmarkable
+
+    attr_reader :id
+    def initialize(input_path, tempfile = nil, id:)
+      super(input_path, tempfile)
+      raise(ArgumentError, "must specify id") if id.blank?
+      @id = id
+    end
+
+    # Wrap extract in a read lock and benchmark it
+    def extract(transformation, image_info = nil)
+      Riiif::Image.file_resolver.file_locks[id].with_read_lock do
+        benchmark "RiiifFile extracted #{path} with #{transformation.to_params}", level: :debug do
+          super
+        end
+      end
+    end
+
+    private
+
+    def logger
+      Hyrax.logger
+    end
+  end
+end

app/models/hyrax/file_set.rb

@@ -73,6 +73,15 @@ def original_file_id
       original_file&.id
     end
 
+    # @return [String, Nil] versioned identifier suitable for use in a IIIF manifest
+    def iiif_id
+      orig_file = original_file
+      return nil if orig_file.nil? || orig_file.file_identifier.blank?
+      latest_file = Hyrax::VersioningService.latest_version_of(orig_file)
+      version = latest_file&.version_id ? Digest::MD5.hexdigest(latest_file.version_id) : nil
+      "#{id}/files/#{orig_file.id}#{'/' + version if version}"
+    end
+
     # @return [Hyrax::FileMetadata, nil]
     def thumbnail
       Hyrax.custom_queries.find_thumbnail(file_set: self)

app/services/hyrax/riiif_file_resolver.rb

@@ -0,0 +1,50 @@
+# frozen_string_literal: true
+module Hyrax
+  # Riiif file resolver for valkyrie resources
+  class RiiifFileResolver
+    include ActiveSupport::Benchmarkable
+
+    # @param [String] id from iiif manifest
+    # @return [Riiif::File]
+    def find(id)
+      path = nil
+      file_locks[id].with_write_lock do
+        path = build_path(id)
+        path = build_path(id, force: true) unless File.exist?(path) # Ensures the file is locally available
+      end
+      RiiifFile.new(path, id: id)
+    end
+
+    # tracks individual file locks
+    # @see RiiifFile
+    # @return [Concurrent::Map<Concurrent::ReadWriteLock>]
+    def file_locks
+      @file_locks ||= Concurrent::Map.new do |k, v|
+        k.compute_if_absent(v) { Concurrent::ReadWriteLock.new }
+      end
+    end
+
+    private
+
+    def build_path(id, force: false)
+      Riiif::Image.cache.fetch("riiif:" + Digest::MD5.hexdigest("path:#{id}"),
+                               expires_in: Riiif::Image.expires_in,
+                               force: force) do
+        load_file(id)
+      end
+    end
+
+    def load_file(id)
+      benchmark "RiiifFileResolver loaded #{id}", level: :debug do
+        fs_id = id.sub(/\A([^\/]*)\/.*/, '\1')
+        file_set = Hyrax.query_service.find_by(id: fs_id)
+        file_metadata = Hyrax.custom_queries.find_original_file(file_set: file_set)
+        file_metadata.file.disk_path.to_s # Stores a local copy in tmpdir
+      end
+    end
+
+    def logger
+      Hyrax.logger
+    end
+  end
+end

config/initializers/file_length_patch.rb

@@ -2,5 +2,9 @@
 
 # Valkyrie::Storage::Fedora expects io objects to have #length
 class ::File
-  alias length size unless ::File.respond_to? :length
+  alias length size unless respond_to? :length
+end
+
+class ::Valkyrie::StorageAdapter::StreamFile
+  alias length size unless respond_to? :length
 end

hyrax.gemspec

@@ -41,6 +41,7 @@ SUMMARY
   spec.add_dependency 'browse-everything', '>= 0.16', '< 2.0'
   spec.add_dependency 'carrierwave', '~> 1.0'
   spec.add_dependency 'clipboard-rails', '~> 1.5'
+  spec.add_dependency 'concurrent-ruby', '~> 1.0'
   spec.add_dependency 'connection_pool', '~> 2.4'
   spec.add_dependency 'draper', '~> 4.0'
   spec.add_dependency 'dry-logic', '~> 1.5'

lib/generators/hyrax/templates/config/initializers/riiif.rb

@@ -1,39 +1,33 @@
 # frozen_string_literal: true
-ActiveSupport::Reloader.to_prepare do
-  Riiif::Image.file_resolver = Riiif::HttpFileResolver.new
+Rails.application.reloader.to_prepare do
   Riiif::Image.info_service = lambda do |id, _file|
     # id will look like a path to a pcdm:file
     # (e.g. rv042t299%2Ffiles%2F6d71677a-4f80-42f1-ae58-ed1063fd79c7)
     # but we just want the id for the FileSet it's attached to.
 
-    # Capture everything before the first slash
     fs_id = id.sub(/\A([^\/]*)\/.*/, '\1')
     resp = Hyrax::SolrService.get("id:#{fs_id}")
     doc = resp['response']['docs'].first
     raise "Unable to find solr document with id:#{fs_id}" unless doc
     { height: doc['height_is'], width: doc['width_is'], format: doc['mime_type_ssi'], channels: doc['alpha_channels_ssi'] }
   end
 
-  Riiif::Image.file_resolver.id_to_uri = if Hyrax.config.use_valkyrie?
-                                           # Use Valkyrie adapter to make sure file is available locally. Riiif will just open it then
-                                           # id comes in with the format "FILE_SET_ID/files/FILE_ID"
-                                           lambda do |id|
-                                             file_metadata = Hyrax.query_service.find_by(id: id.split('/').last)
-                                             file = Hyrax.storage_adapter.find_by(id: file_metadata.file_identifier)
-                                             file.disk_path.to_s
-                                           end
-                                         else
-                                           lambda do |id|
-                                             Hyrax::Base.id_to_uri(CGI.unescape(id)).tap do |url|
-                                               Rails.logger.info "Riiif resolved #{id} to #{url}"
-                                             end
-                                           end
-                                         end
+  if Hyrax.config.use_valkyrie?
+    Riiif::Image.file_resolver = Hyrax::RiiifFileResolver.new
+  else
+    Riiif::Image.file_resolver = Riiif::HttpFileResolver.new
+
+    Riiif::Image.file_resolver.id_to_uri = lambda do |id|
+      Hyrax::Base.id_to_uri(CGI.unescape(id)).tap do |url|
+        Rails.logger.info "Riiif resolved #{id} to #{url}"
+      end
+    end
+  end
 
   Riiif::Image.authorization_service = Hyrax::IiifAuthorizationService
 
   Riiif.not_found_image = Rails.root.join('app', 'assets', 'images', 'us_404.svg')
   Riiif.unauthorized_image = Rails.root.join('app', 'assets', 'images', 'us_404.svg')
 
-  Riiif::Engine.config.cache_duration = 365.days
+  Riiif::Engine.config.cache_duration = 1.month
 end

lib/hyrax/specs/shared_specs/hydra_works.rb

@@ -314,6 +314,20 @@
         expect(fileset.extracted_text).to eq extracted_text
         expect(fileset.extracted_text_id).to eq extracted_text.id
       end
+
+      context 'with simulated original file' do
+        let(:file_metadata_double) { double("Fake Hyrax::FileMetadata", id: SecureRandom.uuid, file_identifier: SecureRandom.uuid, versions: [file_double]) }
+        let(:file_double) { double("Fake Valkyrie::StorageAdapter::File", id: SecureRandom.uuid, version_id: SecureRandom.uuid)}
+
+        before do
+          allow(fileset).to receive(:original_file).and_return(file_metadata_double)
+          fileset.id = Valkyrie::ID.new(SecureRandom.uuid)
+        end
+
+        it 'returns a iiif_id with matching ids' do
+          expect(fileset.iiif_id).to eq "#{fileset.id}/files/#{fileset.original_file_id}/#{Digest::MD5.hexdigest(file_double.version_id)}"
+        end
+      end
     end
   end
 end

lib/hyrax/transactions/steps/file_metadata_delete.rb

@@ -21,7 +21,7 @@ def initialize(persister: Hyrax.persister, storage_adapter: Hyrax.storage_adapte
         end
 
         ##
-        # @param [Valkyrie::Resource] resource
+        # @param [Hyrax::FileMetadata] FileMetadata resource
         # @param [::User] the user resposible for the delete action
         #
         # @return [Dry::Monads::Result]
@@ -30,7 +30,7 @@ def call(resource)
 
           @persister.delete(resource: resource)
           @publisher.publish('file.metadata.deleted', metadata: resource)
-          Valkyrie::StorageAdapter.delete(id: resource.file_identifier)
+          Valkyrie::StorageAdapter.delete(id: resource.file_identifier) if resource.file_identifier.present?
 
           Success(resource)
         end

spec/factories/hyrax_file_metadata.rb

@@ -58,8 +58,9 @@
 
     trait :with_file do
       transient do
-        file { FactoryBot.create(:uploaded_file) }
+        file { FactoryBot.create(:uploaded_file, file: File.open('spec/fixtures/world.png')) }
         file_set { FactoryBot.valkyrie_create(:hyrax_file_set) }
+        user { FactoryBot.create(:user) }
       end
 
       after(:build) do |file_metadata, evaluator|
@@ -76,6 +77,12 @@
                                              original_filename: evaluator.file.uploader.filename)
         file_metadata.file_identifier = saved.id
       end
+
+      after(:create) do |file_metadata, evaluator|
+        Hyrax::ValkyrieUpload.new.add_file_to_file_set(file_set: evaluator.file_set,
+                                                       file_metadata: file_metadata,
+                                                       user: evaluator.user)
+      end
     end
   end
 end

spec/presenters/hyrax/file_set_presenter_spec.rb

@@ -312,7 +312,7 @@ def uri_segment_escape(uri)
     let(:file_metadata) { FactoryBot.valkyrie_create(:file_metadata, :original_file, :with_file, file: file) }
     let(:file_set) { FactoryBot.valkyrie_create(:hyrax_file_set) }
     let(:request) { double('request', base_url: 'http://test.host') }
-    let(:id) { "#{file_set.id}/files/#{file_metadata.id}" }
+    let(:id) { "#{file_set.id}/files/#{file_metadata.id}/#{Digest::MD5.hexdigest(file_metadata.file.version_id)}" }
 
     describe "#display_image" do
       context 'without a file' do

spec/services/hyrax/riiif_file_resolver_spec.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe Hyrax::RiiifFileResolver do
+  let(:resolver) { described_class.new }
+
+  context 'with a file' do
+    let(:file_metadata) { FactoryBot.valkyrie_create(:hyrax_file_metadata, :with_file) }
+    let(:file_set) { Hyrax.query_service.find_by(id: file_metadata.file_set_id) }
+
+    describe '#find' do
+      it 'returns a locally available RiiifFile using a write lock' do
+        expect(resolver.file_locks[file_set.iiif_id]).to receive(:with_write_lock).and_call_original
+        expect(resolver.find(file_set.iiif_id)).to be_instance_of Hyrax::RiiifFile
+        expect(File.exist?(file_metadata.file.disk_path)).to eq true
+      end
+    end
+  end
+
+  describe '#file_locks' do
+    it 'is a Concurrent::Map of Concurrent::ReadWriteLocks' do
+      expect(resolver.file_locks[SecureRandom.uuid]).to be_instance_of Concurrent::ReadWriteLock
+    end
+  end
+end