Improve error handling.

lib/protocol/websocket/error.rb

@@ -22,10 +22,38 @@
 
 module Protocol
 	module WebSocket
-		class BadRequest < HTTP::BadRequest
+		# Status codes as defined by <https://tools.ietf.org/html/rfc6455#section-7.4.1>.
+		class Error < HTTP::Error
+			# Indicates a normal closure, meaning that the purpose for which the connection was established has been fulfilled.
+			NO_ERROR = 1000
+
+			# Indicates that an endpoint is "going away", such as a server going down or a browser having navigated away from a page.
+			GOING_AWAY = 1001
+
+			# Indicates that an endpoint is terminating the connection due to a protocol error.
+			PROTOCOL_ERROR = 1002
+
+			# Indicates that an endpoint is terminating the connection because it has received a type of data it cannot accept.
+			INVALID_DATA = 1003
+
+			# There are other status codes but most of them are "implementation specific".
 		end
 
-		class ProtocolError < HTTP::ProtocolError
+		# Raised by stream or connection handlers, results in GOAWAY frame
+		# which signals termination of the current connection. You *cannot*
+		# recover from this exception, or any exceptions subclassed from it.
+		class ProtocolError < Error
+			def initialize(message, code = PROTOCOL_ERROR)
+				super(message)
+
+				@code = code
+			end
+
+			attr :code
+		end
+
+		# When the frame payload does not match expectations.
+		class FrameSizeError < ProtocolError
 		end
 	end
 end

protocol-websocket.gemspec

@@ -18,7 +18,8 @@ Gem::Specification.new do |spec|
 	spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
 	spec.require_paths = ["lib"]
 
-	spec.add_dependency "protocol-http"
+	spec.add_dependency "protocol-http", "~> 0.2"
+	spec.add_dependency "protocol-http1", "~> 0.2"
 
 	spec.add_development_dependency "covered"
 	spec.add_development_dependency "bundler"