[rb] support sending firefox addon directory as temporary in remote s…

…ession

rb/lib/selenium/webdriver/firefox/features.rb

@@ -17,6 +17,8 @@
 # specific language governing permissions and limitations
 # under the License.
 
+require 'zip'
+
 module Selenium
   module WebDriver
     module Firefox
@@ -35,7 +37,23 @@ def commands(command)
         end
 
         def install_addon(path, temporary)
-          addon = File.open(path, 'rb') { |crx_file| Base64.strict_encode64 crx_file.read }
+          if File.directory?(path)
+            zip = "#{path}.zip"
+            # Delete zip file if it already exists
+            File.delete(zip) if File.file?(zip)
+
+            Zip::File.open(zip, Zip::File::CREATE) do |z_file|
+              Dir[File.join(path, "**", "**")].each do |file|
+                z_file.add(file.sub("#{path}/", ""), file)
+              end
+            end
+
+            addon = File.open(zip, 'rb') { |crx_file| Base64.strict_encode64 crx_file.read }
+            # Delete the zip file
+            File.delete(zip)
+          else
+            addon = File.open(path, 'rb') { |crx_file| Base64.strict_encode64 crx_file.read }
+          end
 
           payload = {addon: addon}
           payload[:temporary] = temporary unless temporary.nil?

rb/spec/integration/selenium/webdriver/firefox/driver_spec.rb

@@ -24,6 +24,7 @@ module WebDriver
     module Firefox
       describe Driver, exclusive: {browser: :firefox} do
         let(:extension) { '../../../../../../third_party/firebug/favourite_colour-1.1-an+fx.xpi' }
+        let(:extension_dir) { '../../../../../../common/extensions/webextensions-selenium-example' }
 
         describe '#print_options' do
           let(:magic_number) { 'JVBER' }
@@ -74,6 +75,11 @@ module Firefox
             ext = File.expand_path(extension, __dir__)
             driver.install_addon(ext, true)
           end
+
+          it 'with path as unpacked directory' do
+            ext = File.expand_path(extension_dir, __dir__)
+            driver.install_addon(ext, true)
+          end
         end
 
         describe '#uninstall_addon' do