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# frozen_string_literal: true
require "forwardable"
require "http/headers"
require "http/content_type"
require "http/mime_type"
require "http/response/status"
require "http/response/inflater"
require "http/uri"
require "http/cookie_jar"
require "time"
module HTTP
class Response
extend Forwardable
include HTTP::Headers::Mixin
# @return [Status]
attr_reader :status
# @return [String]
attr_reader :version
# @return [Body]
attr_reader :body
# @return [URI, nil]
attr_reader :uri
# @return [Hash]
attr_reader :proxy_headers
# Inits a new instance
#
# @option opts [Integer] :status Status code
# @option opts [String] :version HTTP version
# @option opts [Hash] :headers
# @option opts [Hash] :proxy_headers
# @option opts [HTTP::Connection] :connection
# @option opts [String] :encoding Encoding to use when reading body
# @option opts [String] :body
# @option opts [String] :uri
def initialize(opts)
@version = opts.fetch(:version)
@uri = HTTP::URI.parse(opts.fetch(:uri)) if opts.include? :uri
@status = HTTP::Response::Status.new(opts.fetch(:status))
@headers = HTTP::Headers.coerce(opts[:headers] || {})
@proxy_headers = HTTP::Headers.coerce(opts[:proxy_headers] || {})
if opts.include?(:body)
@body = opts.fetch(:body)
else
connection = opts.fetch(:connection)
encoding = opts[:encoding] || charset || Encoding::BINARY
@body = Response::Body.new(connection, :encoding => encoding)
end
end
# @!method reason
# @return (see HTTP::Response::Status#reason)
def_delegator :status, :reason
# @!method code
# @return (see HTTP::Response::Status#code)
def_delegator :status, :code
# @!method to_s
# (see HTTP::Response::Body#to_s)
def_delegator :body, :to_s
alias to_str to_s
# @!method readpartial
# (see HTTP::Response::Body#readpartial)
def_delegator :body, :readpartial
# @!method connection
# (see HTTP::Response::Body#connection)
def_delegator :body, :connection
# Returns an Array ala Rack: `[status, headers, body]`
#
# @return [Array(Fixnum, Hash, String)]
def to_a
[status.to_i, headers.to_h, body.to_s]
end
# Flushes body and returns self-reference
#
# @return [Response]
def flush
body.to_s
self
end
# Value of the Content-Length header.
#
# @return [nil] if Content-Length was not given, or it's value was invalid
# (not an integer, e.g. empty string or string with non-digits).
# @return [Integer] otherwise
def content_length
# http://greenbytes.de/tech/webdav/rfc7230.html#rfc.section.3.3.3
# Clause 3: "If a message is received with both a Transfer-Encoding
# and a Content-Length header field, the Transfer-Encoding overrides the Content-Length.
return nil if @headers.include?(Headers::TRANSFER_ENCODING)
value = @headers[Headers::CONTENT_LENGTH]
return nil unless value
begin
Integer(value)
rescue ArgumentError
nil
end
end
# Parsed Content-Type header
#
# @return [HTTP::ContentType]
def content_type
@content_type ||= ContentType.parse headers[Headers::CONTENT_TYPE]
end
# @!method mime_type
# MIME type of response (if any)
# @return [String, nil]
def_delegator :content_type, :mime_type
# @!method charset
# Charset of response (if any)
# @return [String, nil]
def_delegator :content_type, :charset
def cookies
@cookies ||= headers.each_with_object CookieJar.new do |(k, v), jar|
jar.parse(v, uri) if k == Headers::SET_COOKIE
end
end
def chunked?
return false unless @headers.include?(Headers::TRANSFER_ENCODING)
encoding = @headers.get(Headers::TRANSFER_ENCODING)
# TODO: "chunked" is frozen in the request writer. How about making it accessible?
encoding.last == "chunked"
end
# Parse response body with corresponding MIME type adapter.
#
# @param [#to_s] as Parse as given MIME type
# instead of the one determined from headers
# @raise [HTTP::Error] if adapter not found
# @return [Object]
def parse(as = nil)
MimeType[as || mime_type].decode to_s
end
# Inspect a response
def inspect
"#<#{self.class}/#{@version} #{code} #{reason} #{headers.to_h.inspect}>"
end
end
end
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