class Rack::Chunked
Middleware that applies chunked transfer encoding to response bodies when the response does not include a Content-Length header.
Public Class Methods
new(app)
click to toggle source
# File lib/rack/chunked.rb, line 38 def initialize(app) @app = app end
Public Instance Methods
call(env)
click to toggle source
# File lib/rack/chunked.rb, line 53 def call(env) status, headers, body = @app.call(env) headers = HeaderHash.new(headers) if ! chunkable_version?(env[HTTP_VERSION]) || STATUS_WITH_NO_ENTITY_BODY.include?(status) || headers[CONTENT_LENGTH] || headers[TRANSFER_ENCODING] [status, headers, body] else headers.delete(CONTENT_LENGTH) headers[TRANSFER_ENCODING] = 'chunked' [status, headers, Body.new(body)] end end
chunkable_version?(ver)
click to toggle source
pre-HTTP/1.0 (informally “HTTP/0.9”) HTTP requests did not have a version (nor response headers)
# File lib/rack/chunked.rb, line 44 def chunkable_version?(ver) case ver when "HTTP/1.0", nil, "HTTP/0.9" false else true end end