Fix date/expires header parsing. (#37)

Author: ioquatix

lib/protocol/http/header/date.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+# Released under the MIT License.
+# Copyright, 2020-2023, by Samuel Williams.
+
+require 'time'
+
+module Protocol
+	module HTTP
+		module Header
+			class Date < String
+				def << value
+					replace(value)
+				end
+				
+				def to_time
+					::Time.parse(self)
+				end
+			end
+		end
+	end
+end

lib/protocol/http/headers.rb

@@ -12,6 +12,7 @@
 require_relative 'header/etags'
 require_relative 'header/vary'
 require_relative 'header/authorization'
+require_relative 'header/date'
 
 module Protocol
 	module HTTP
@@ -239,6 +240,9 @@ def []= key, value
 				# Custom headers:
 				'set-cookie' => Header::SetCookie,
 				'cookie' => Header::Cookie,
+				
+				'date' => Header::Date,
+				'expires' => Header::Date,
 			}.tap{|hash| hash.default = Split}
 
 			# Delete all headers with the given key, and return the merged value.

test/protocol/http/header/date.rb

@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+# Released under the MIT License.
+# Copyright, 2023, by Samuel Williams.
+
+require 'protocol/http/header/date'
+
+describe Protocol::HTTP::Header::Date do
+	let(:header) {subject.new(description)}
+	
+	with 'Wed, 21 Oct 2015 07:28:00 GMT' do
+		it "can parse time" do
+			time = header.to_time
+			expect(time).to be_a(::Time)
+			
+			expect(time).to have_attributes(
+				year: be == 2015,
+				month: be == 10,
+				mday: be == 21,
+				hour: be == 7,
+				min: be == 28,
+				sec: be == 0
+			)
+		end
+	end
+	
+	with "#<<" do
+		let(:header) {subject.new}
+		
+		it "can replace values" do
+			header << 'Wed, 21 Oct 2015 07:28:00 GMT'
+			expect(header.to_time).to have_attributes(
+				year: be == 2015,
+				month: be == 10,
+				mday: be == 21
+			)
+			
+			header << 'Wed, 22 Oct 2015 07:28:00 GMT'
+			expect(header.to_time).to have_attributes(
+				year: be == 2015,
+				month: be == 10,
+				mday: be == 22
+			)
+		end
+	end
+end