Class: Rack::Client::Base

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/rack/client/adapter/base.rb

Direct Known Subclasses

Simple

Constant Summary collapse

ASCII_ENCODING = 
'ASCII-8BIT'

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Base

Returns a new instance of Base.



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# File 'lib/rack/client/adapter/base.rb', line 10

def initialize(app)
  @app = app
end

Instance Method Details

#build_env(request_method, url, headers = {}, body = nil) ⇒ Object 



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# File 'lib/rack/client/adapter/base.rb', line 30

def build_env(request_method, url,  headers = {}, body = nil)
  env = Headers.new(headers).to_env

  env.update 'REQUEST_METHOD' => request_method

  env['CONTENT_TYPE'] ||= 'application/x-www-form-urlencoded'

  uri = URI.parse(url)

  path_info = uri.path.empty? ? '/' : uri.path

  env.update 'PATH_INFO'    => path_info
  env.update 'REQUEST_URI'  => uri.to_s
  env.update 'SERVER_NAME'  => uri.host.to_s
  env.update 'SERVER_PORT'  => uri.port.to_s
  env.update 'SCRIPT_NAME'  => ''
  env.update 'QUERY_STRING' => uri.query.to_s

  input  = ensure_acceptable_input(body)
  errors = StringIO.new

  [ input, errors ].each do |io|
    io.set_encoding(ASCII_ENCODING) if io.respond_to?(:set_encoding)
  end

  env.update 'rack.input'         => input
  env.update 'rack.errors'        => errors
  env.update 'rack.url_scheme'    => uri.scheme || 'http'
  env.update 'rack.version'       => Rack::VERSION
  env.update 'rack.multithread'   => true
  env.update 'rack.multiprocess'  => true
  env.update 'rack.run_once'      => false

  env.update 'HTTPS'  => env["rack.url_scheme"] == "https" ? "on" : "off"

  env
end

#ensure_acceptable_input(body) ⇒ Object 



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# File 'lib/rack/client/adapter/base.rb', line 68

def ensure_acceptable_input(body)
  if %w[gets each read rewind].all? {|m| body.respond_to?(m.to_sym) }
    body
  elsif body.respond_to?(:each)
    input = StringIO.new
    body.each {|chunk| input << chunk }
    input.rewind
    input
  else
    input = StringIO.new(body.to_s)
    input.rewind
    input
  end
end

#request(method, url, headers = {}, body = nil) ⇒ Object 



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# File 'lib/rack/client/adapter/base.rb', line 22

def request(method, url, headers = {}, body = nil)
  if block_given?
    call(build_env(method.upcase, url, headers, body)) {|tuple| yield *tuple }
  else
    return *call(build_env(method.upcase, url, headers, body))
  end
end