Fixed unable to download ECW due to spaces in the file names, added checksum caching for Task to make updating much faster for most games (IA with its mostly loose files doesn't gain anything and might even be slower... Consider not performing any verification for non-repair tasks?)

lib/worker/api/legacy_manifest_package.rb

@@ -19,6 +19,12 @@ module W3DHubLauncher
           @sha256_checksum = hash["checksum"]
           @checksum_chunks = hash["checksum-chunks"]
           @download_url = hash["download_url"]
+
+          # Fix crashing on spaces
+          if @download_url
+            uri_path = @download_url.split("/").last
+            @download_url = @download_url.sub(uri_path, URI.encode_uri_component(uri_path))
+          end
         end
 
         def error?

lib/worker/api/verification_data.rb

@@ -0,0 +1,107 @@
+module W3DHubLauncher
+  class Worker
+    class Api
+
+      # Cached verifcation data for application and pending package files
+      class VerificationData
+        SCHEMA = 0
+
+        def initialize(path)
+          @path = path
+
+          data = {}
+          if File.exist?(@path)
+            begin
+              data = JSON.parse(File.read(@path))
+            rescue JSON::ParserError
+              data = {}
+            end
+          end
+          data = {} unless data.is_a?(Hash)
+
+          @schema = data["schema"] || SCHEMA
+          @data = {}
+          data["data"]&.each do |key, value|
+            @data[key] = Data.new(value)
+          end
+        end
+
+        def key(file_name, file_version: "", package: false)
+          file_name = file_name.gsub("\\", "/").downcase
+
+          if package
+            "package:{file_name}:#{file_version}"
+          else
+            file_name
+          end
+        end
+
+        def data(key)
+          @data[key]
+        end
+
+        def unchanged?(key, checksum:, file_path:)
+          data = data(key)
+          return nil unless data
+
+          return data if data.checksum.upcase.strip == checksum.upcase.strip &&
+                         data.modification_time == File.mtime(file_path).to_i &&
+                         data.file_size == File.size(file_path)
+
+          nil
+        end
+
+        def set(key, checksum:, file_path:)
+          data = Data.new(
+            {
+              "checksum" => checksum.upcase.strip,
+              "modification_time" => File.mtime(file_path).to_i,
+              "file_size" => File.size(file_path)
+            }
+          )
+
+          @data[key] = data
+          save
+
+          data
+        end
+
+        def delete(key)
+          data = @data.delete(key)
+          save
+
+          data
+        end
+
+        def save
+          File.write(@path, JSON.pretty_generate(self))
+        end
+
+        def to_json(options = {})
+          {
+            schema: SCHEMA,
+            data: @data
+          }.to_json(options)
+        end
+
+        class Data
+          attr_reader :checksum, :modification_time, :file_size
+
+          def initialize(data)
+            @checksum = data["checksum"]
+            @modification_time = data["modification_time"]
+            @file_size = data["file_size"]
+          end
+
+          def to_json(options = {})
+            {
+              checksum: @checksum,
+              modification_time: @modification_time,
+              file_size: @file_size
+            }.to_json(options)
+          end
+        end
+      end
+    end
+  end
+end