Class: HTTPAdapter::RackRequestAdapter

Inherits:
Object
  • Object
show all
Defined in:
lib/httpadapter/adapters/rack.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(request, error_stream = STDERR) ⇒ RackRequestAdapter

Returns a new instance of RackRequestAdapter.



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# File 'lib/httpadapter/adapters/rack.rb', line 23

def initialize(request, error_stream=STDERR)
  unless request.kind_of?(Rack::Request)
    raise TypeError, "Expected Rack::Request, got #{request.class}."
  end
  @request = request
  @error_stream = error_stream
end

Class Method Details

.from_ary(array) ⇒ Object 



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# File 'lib/httpadapter/adapters/rack.rb', line 46

def self.from_ary(array)
  # These contortions are really obnoxious; lossiness is bad!
  method, uri, headers, body = array
  env = {}
  method = method.to_s.upcase
  uri = Addressable::URI.parse(uri)
  body_io = StringIO.new
  body.each do |chunk|
    unless chunk.kind_of?(String)
      raise TypeError, "Expected String, got #{chunk.class}."
    end
    body_io.write(chunk)
  end
  body_io.rewind

  # PEP333 variables
  env['REQUEST_METHOD'] = method
  env['SERVER_NAME'] = uri.host || ''
  env['SERVER_PORT'] = uri.port || '80'
  env['SCRIPT_NAME'] = ''
  env['PATH_INFO'] = uri.path
  env['QUERY_STRING'] = uri.query || ''

  # Rack-specific variables
  env['rack.version'] = Rack::VERSION
  env['rack.input'] = body_io
  env['rack.errors'] = @error_stream
  env['rack.multithread'] = true # maybe?
  env['rack.multiprocess'] = true # maybe?
  env['rack.run_once'] = false
  env['rack.url_scheme'] = uri.scheme || 'http'

  headers.each do |header, value|
    case header.downcase
    when 'content-length'
      env['CONTENT_LENGTH'] = value
    when 'content-type'
      env['CONTENT_TYPE'] = value
    end
    env['HTTP_' + header.gsub(/\-/, "_").upcase] = value
  end
  request = Rack::Request.new(env)
  return request
end

.transmit(request, connection = nil) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/httpadapter/adapters/rack.rb', line 91

def self.transmit(request, connection=nil)
  raise NotImplementedError,
    'No HTTP client implementation available to transmit a Rack::Request.'
end

Instance Method Details

#to_ary ⇒ Object 



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# File 'lib/httpadapter/adapters/rack.rb', line 31

def to_ary
  method = @request.request_method.to_s.upcase
  uri = Addressable::URI.parse(@request.url.to_s).normalize.to_s
  headers = []
  @request.env.each do |parameter, value|
    next if parameter !~ /^HTTP_/
    # Ugh, lossy canonicalization again
    header = (parameter.gsub(/^HTTP_/, '').split('_').map do |chunk|
      chunk.capitalize
    end).join('-')
    headers << [header, value]
  end
  return [method, uri, headers, @request.body]
end