Make Driver.send() handle binary-encoded strings as binary messages

Author: jcoglan

faye-websocket.gemspec

@@ -14,7 +14,7 @@ Gem::Specification.new do |s|
   s.files = %w[CHANGELOG.md LICENSE.md README.md] + Dir.glob('lib/**/*.rb')
 
   s.add_dependency 'eventmachine', '>= 0.12.0'
-  s.add_dependency 'websocket-driver', '>= 0.5.1'
+  s.add_dependency 'websocket-driver', '>= 0.8.0'
 
   s.add_development_dependency 'permessage_deflate'
   s.add_development_dependency 'progressbar'

lib/faye/websocket/api.rb

@@ -65,11 +65,20 @@ def write(data)
 
       def send(message)
         return false if @ready_state > OPEN
+
         case message
-          when Numeric then @driver.text(message.to_s)
-          when String  then @driver.text(message)
-          when Array   then @driver.binary(message)
-          else false
+          when Numeric then
+            @driver.text(message.to_s)
+          when String then
+            if message.encoding == Encoding::UTF_8
+              @driver.text(message)
+            else
+              @driver.binary(message)
+            end
+          when Array then
+            @driver.binary(message)
+          else
+            false
         end
       end