Class: Protocol::Rack::Response
- Inherits:
-
HTTP::Response
- Object
- HTTP::Response
- Protocol::Rack::Response
- Defined in:
- lib/protocol/rack/response.rb
Overview
A wrapper for a `Rack` response.
A Rack response consisting of `[status, headers, body]` includes various rack-specific elements, including:
-
A `headers` callback which bypasses normal response handling.
-
Potentially invalid content length.
-
Potentially invalid body when processing a `HEAD` request.
-
Newline-separated header values.
-
Other `rack.` specific header key/value pairs.
This wrapper takes those issues into account and adapts the rack response tuple into a HTTP::Response.
Constant Summary collapse
- HOP_HEADERS =
HTTP hop headers which should not be passed through the proxy.
[ 'connection', 'keep-alive', 'public', 'proxy-authenticate', 'transfer-encoding', 'upgrade', ]
Class Method Summary collapse
-
.wrap(env, status, headers, meta, body, request = nil) ⇒ Object
Wrap a rack response.
Instance Method Summary collapse
-
#initialize(status, headers, body, protocol = nil) ⇒ Response
constructor
Initialize the response wrapper.
Constructor Details
#initialize(status, headers, body, protocol = nil) ⇒ Response
Initialize the response wrapper.
72 73 74 |
# File 'lib/protocol/rack/response.rb', line 72 def initialize(status, headers, body, protocol = nil) super(nil, status, headers, body, protocol) end |
Class Method Details
.wrap(env, status, headers, meta, body, request = nil) ⇒ Object
Wrap a rack response.
42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 |
# File 'lib/protocol/rack/response.rb', line 42 def self.wrap(env, status, headers, , body, request = nil) ignored = headers.extract(HOP_HEADERS) unless ignored.empty? Console.logger.warn(self, "Ignoring protocol-level headers: #{ignored.inspect}") end body = Body.wrap(env, status, headers, body, request&.body) if request&.head? # I thought about doing this in Output.wrap, but decided the semantics are too tricky. Specifically, the various ways a rack response body can be wrapped, and the need to invoke #close at the right point. body = ::Protocol::HTTP::Body::Head.for(body) end protocol = [RACK_PROTOCOL] # https://tools.ietf.org/html/rfc7231#section-7.4.2 # headers.add('server', "falcon/#{Falcon::VERSION}") # https://tools.ietf.org/html/rfc7231#section-7.1.1.2 # headers.add('date', Time.now.httpdate) return self.new(status, headers, body, protocol) end |