Class: Rbkb::Http::Response

Inherits:
Base
  • Object
show all
Defined in:
lib/rbkb/http/response.rb

Overview

A Response encapsulates all the entities in a HTTP response, including the status header, general headers, and body.

Instance Attribute Summary collapse

Attributes inherited from Base

#body, #headers

Instance Method Summary collapse

Methods inherited from Base

#attach_new_body, #attach_new_header, #capture_body, #capture_complete?, #capture_headers, #content_length, #content_type, #initialize, parse, #reset_capture, #reset_capture!

Methods included from CommonInterface

#_common_init, #opts, #opts=

Constructor Details

This class inherits a constructor from Rbkb::Http::Base

Instance Attribute Details

#status ⇒ Object Also known as: first_entity

Returns the value of attribute status.



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# File 'lib/rbkb/http/response.rb', line 6

def status
  @status
end

Instance Method Details

#capture(str) {|_self, bstr| ... } ⇒ Object

Parses a raw HTTP response and captures data into the current instance.

Yields:

  • (_self, bstr)

Yield Parameters:



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# File 'lib/rbkb/http/response.rb', line 41

def capture(str)
  raise "arg 0 must be a string" unless String === str
  hstr, bstr = str.split(/\s*\r?\n\r?\n/, 2)

  capture_headers(hstr)

  yield(self, bstr) if block_given?

  unless @body and @body.capture_complete?
    @body =
      if do_chunked_encoding?
        ChunkedBody.new {|b| b.base = self }
      elsif content_length()
        BoundBody.new {|b| b.base = self }
      else
        Body.new {|b| b.base = self }
      end
  end

  capture_body(bstr)

  return self
end

#default_body_obj(*args) ⇒ Object

Returns a new BoundBody object. This is the default object which will be used when composing fresh Response body entities.



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# File 'lib/rbkb/http/response.rb', line 82

def default_body_obj(*args)
  BoundBody.new(*args)
end

#default_headers_obj(*args) ⇒ Object

Returns a new Headers object extended as ResponseHeaders. This is the default object which will be used when composing fresh Response header entities.



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# File 'lib/rbkb/http/response.rb', line 76

def default_headers_obj(*args)
  Headers.new(*args).extend(ResponseHeaders)
end

#do_chunked_encoding?(hdrs = @headers) ⇒ Boolean

Indicates whether to use chunked encoding based on presence of the “Transfer-Encoding: chunked” header or the :ignore_chunked_encoding opts parameter.

Returns:

  • (Boolean) 


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# File 'lib/rbkb/http/response.rb', line 68

def do_chunked_encoding?(hdrs=@headers)
  ( (not @opts[:ignore_chunked_encoding]) and 
    (hdrs.get_header_value("Transfer-Encoding").to_s =~ /(?:^|\W)chunked(?:\W|$)/) )
end

#to_raw(raw_body = nil) {|_self| ... } ⇒ Object

Returns a raw HTTP response for this instance. Must have a status element defined at a bare minimum.

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/rbkb/http/response.rb', line 13

def to_raw(raw_body=nil)
  raise "this response has no status" unless first_entity()
  self.headers ||= default_headers_obj()
  self.body = raw_body if raw_body

  if do_chunked_encoding?(@headers)
    unless @body.is_a? ChunkedBody
      @body = ChunkedBody.new(@body, @body.opts)
    end
    @headers.delete_header("Content-Length")
  elsif not opts[:ignore_content_length]
    unless @body.is_a? BoundBody
      @body = BoundBody.new(@body, @body.opts)
    end
    @headers.delete_header("Transfer-Encoding")
  else
    @body = Body.new(@body, @body.opts)
  end
  @body.base = self

  yield(self) if block_given?

  bstr = @body.to_raw
  hdrs = @headers.to_raw_array.unshift(self.first_entity.to_raw)
  return "#{hdrs.join("\r\n")}\r\n\r\n#{bstr}"
end