1 files changed, 52 insertions, 2 deletions
diff --git a/lib/uri/http.rb b/lib/uri/http.rb
index 70cfb2a1bf..3c41cd4e93 100644
--- a/lib/uri/http.rb
+++ b/lib/uri/http.rb
@@ -61,6 +61,18 @@ module URI
       super(tmp)
     end
 
+    # Do not allow empty host names, as they are not allowed by RFC 3986.
+    def check_host(v)
+      ret = super
+
+      if ret && v.empty?
+        raise InvalidComponentError,
+          "bad component(expected host component): #{v}"
+      end
+
+      ret
+    end
+
     #
     # == Description
     #
@@ -80,8 +92,46 @@ module URI
       url = @query ? "#@path?#@query" : @path.dup
       url.start_with?(?/.freeze) ? url : ?/ + url
     end
-  end
 
-  @@schemes['HTTP'] = HTTP
+    #
+    # == Description
+    #
+    # Returns the authority for an HTTP uri, as defined in
+    # https://www.rfc-editor.org/rfc/rfc3986#section-3.2.
+    #
+    #
+    # Example:
+    #
+    #     URI::HTTP.build(host: 'www.example.com', path: '/foo/bar').authority #=> "www.example.com"
+    #     URI::HTTP.build(host: 'www.example.com', port: 8000, path: '/foo/bar').authority #=> "www.example.com:8000"
+    #     URI::HTTP.build(host: 'www.example.com', port: 80, path: '/foo/bar').authority #=> "www.example.com"
+    #
+    def authority
+      if port == default_port
+        host
+      else
+        "#{host}:#{port}"
+      end
+    end
+
+    #
+    # == Description
+    #
+    # Returns the origin for an HTTP uri, as defined in
+    # https://www.rfc-editor.org/rfc/rfc6454.
+    #
+    #
+    # Example:
+    #
+    #     URI::HTTP.build(host: 'www.example.com', path: '/foo/bar').origin #=> "http://www.example.com"
+    #     URI::HTTP.build(host: 'www.example.com', port: 8000, path: '/foo/bar').origin #=> "http://www.example.com:8000"
+    #     URI::HTTP.build(host: 'www.example.com', port: 80, path: '/foo/bar').origin #=> "http://www.example.com"
+    #     URI::HTTPS.build(host: 'www.example.com', path: '/foo/bar').origin #=> "https://www.example.com"
+    #
+    def origin
+      "#{scheme}://#{authority}"
+    end
+  end
 
+  register_scheme 'HTTP', HTTP
 end