class ActionDispatch::Request

Parent:
Rack::Request
Included modules:
ActionDispatch::Http::Cache::Request, ActionDispatch::Http::MimeNegotiation, ActionDispatch::Http::Parameters, ActionDispatch::Http::FilterParameters, ActionDispatch::Http::URL

Constants

ENV_METHODS
HTTP_METHODS
HTTP_METHOD_LOOKUP
LOCALHOST
RFC2518
RFC2616

List of HTTP request methods from the following RFCs: Hypertext Transfer Protocol – HTTP/1.1 (www.ietf.org/rfc/rfc2616.txt) HTTP Extensions for Distributed Authoring – WEBDAV (www.ietf.org/rfc/rfc2518.txt) Versioning Extensions to WebDAV (www.ietf.org/rfc/rfc3253.txt) Ordered Collections Protocol (WebDAV) (www.ietf.org/rfc/rfc3648.txt) Web Distributed Authoring and Versioning (WebDAV) Access Control Protocol (www.ietf.org/rfc/rfc3744.txt) Web Distributed Authoring and Versioning (WebDAV) SEARCH (www.ietf.org/rfc/rfc5323.txt) Calendar Extensions to WebDAV (www.ietf.org/rfc/rfc4791.txt) PATCH Method for HTTP (www.ietf.org/rfc/rfc5789.txt)

RFC3253
RFC3648
RFC3744
RFC4791
RFC5323
RFC5789

Public Class Methods

new(env) Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 45
def initialize(env)
  super
  @method            = nil
  @request_method    = nil
  @remote_ip         = nil
  @original_fullpath = nil
  @fullpath          = nil
  @ip                = nil
  @uuid              = nil
end
Calls superclass method ActionDispatch::Http::URL.new

Public Instance Methods

GET() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 299
def GET
  @env["action_dispatch.request.query_parameters"] ||= Utils.deep_munge(normalize_encode_params(super || {}))
rescue Rack::Utils::ParameterTypeError, Rack::Utils::InvalidParameterError => e
  raise ActionController::BadRequest.new(:query, e)
end

Override Rack's #GET method to support indifferent access

Calls superclass method
Also aliased as: query_parameters
POST() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 307
def POST
  @env["action_dispatch.request.request_parameters"] ||= Utils.deep_munge(normalize_encode_params(super || {}))
rescue Rack::Utils::ParameterTypeError, Rack::Utils::InvalidParameterError => e
  raise ActionController::BadRequest.new(:request, e)
end

Override Rack's #POST method to support indifferent access

Calls superclass method
Also aliased as: request_parameters
authorization() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 316
def authorization
  @env['HTTP_AUTHORIZATION']   ||
  @env['X-HTTP_AUTHORIZATION'] ||
  @env['X_HTTP_AUTHORIZATION'] ||
  @env['REDIRECT_X_HTTP_AUTHORIZATION']
end

Returns the authorization header regardless of whether it was specified directly or through one of the proxy alternatives.

body() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 262
def body
  if raw_post = @env['RAW_POST_DATA']
    raw_post.force_encoding(Encoding::BINARY)
    StringIO.new(raw_post)
  else
    @env['rack.input']
  end
end

The request body is an IO input stream. If the RAW_POST_DATA environment variable is already set, wrap it in a StringIO.

check_path_parameters!() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 56
def check_path_parameters!
  # If any of the path parameters has an invalid encoding then
  # raise since it's likely to trigger errors further on.
  path_parameters.each do |key, value|
    next unless value.respond_to?(:valid_encoding?)
    unless value.valid_encoding?
      raise ActionController::BadRequest, "Invalid parameter: #{key} => #{value}"
    end
  end
end
content_length() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 213
def content_length
  super.to_i
end

Returns the content length of the request as an integer.

Calls superclass method
deep_munge(hash) Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 329
def deep_munge(hash)
  ActiveSupport::Deprecation.warn(
    'This method has been extracted into `ActionDispatch::Request::Utils.deep_munge`. Please start using that instead.'
  )

  Utils.deep_munge(hash)
end

Extracted into ActionDispatch::Request::Utils.deep_munge, but kept here for backwards compatibility.

delete?() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 157
def delete?
  HTTP_METHOD_LOOKUP[request_method] == :delete
end

Is this a DELETE request? Equivalent to request.request_method_symbol == :delete.

flash() Show source 
# File actionpack/lib/action_dispatch/middleware/flash.rb, line 8
def flash
  @env[Flash::KEY] ||= Flash::FlashHash.from_session_value(session["flash"])
end

Access the contents of the flash. Use flash["notice"] to read a notice you put there or flash["notice"] = "hello" to put a new one.

form_data?() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 271
def form_data?
  FORM_DATA_MEDIA_TYPES.include?(content_mime_type.to_s)
end
fullpath() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 192
def fullpath
  @fullpath ||= super
end

Returns the String full path including params of the last URL requested.

# get "/articles"
request.fullpath # => "/articles"

# get "/articles?page=2"
request.fullpath # => "/articles?page=2"
Calls superclass method
get?() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 133
def get?
  HTTP_METHOD_LOOKUP[request_method] == :get
end

Is this a #GET (or HEAD) request? Equivalent to request.request_method_symbol == :get.

head?() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 163
def head?
  HTTP_METHOD_LOOKUP[request_method] == :head
end

Is this a HEAD request? Equivalent to request.request_method_symbol == :head.

headers() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 170
def headers
  Http::Headers.new(@env)
end

Provides access to the request's HTTP headers, for example:

request.headers["Content-Type"] # => "text/plain"

# File actionpack/lib/action_dispatch/http/request.rb, line 225
def ip
  @ip ||= super
end
Calls superclass method
key?(key) Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 67
def key?(key)
  @env.key?(key)
end
local?() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 324
def local?
  LOCALHOST =~ remote_addr && LOCALHOST =~ remote_ip
end

True if the request came from localhost, 127.0.0.1.

media_type() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 208
def media_type
  content_mime_type.to_s
end

The String MIME type of the request.

# get "/articles"
request.media_type # => "application/x-www-form-urlencoded"
method() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 122
def method
  @method ||= check_method(env["rack.methodoverride.original_method"] || env['REQUEST_METHOD'])
end

Returns the original value of the environment's REQUEST_METHOD, even if it was overridden by middleware. See request_method for more information.

method_symbol() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 127
def method_symbol
  HTTP_METHOD_LOOKUP[method]
end

Returns a symbol form of the method

original_fullpath() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 181
def original_fullpath
  @original_fullpath ||= (env["ORIGINAL_FULLPATH"] || fullpath)
end

Returns a String with the last requested path including their params.

# get '/foo'
request.original_fullpath # => '/foo'

# get '/foo?bar'
request.original_fullpath # => '/foo?bar'
original_url() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 200
def original_url
  base_url + original_fullpath
end

Returns the original request URL as a String.

# get "/articles?page=2"
request.original_url # => "http://www.example.com/articles?page=2"
patch?() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 145
def patch?
  HTTP_METHOD_LOOKUP[request_method] == :patch
end

Is this a PATCH request? Equivalent to request.request_method == :patch.

post?() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 139
def post?
  HTTP_METHOD_LOOKUP[request_method] == :post
end

Is this a #POST request? Equivalent to request.request_method_symbol == :post.

put?() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 151
def put?
  HTTP_METHOD_LOOKUP[request_method] == :put
end

Is this a PUT request? Equivalent to request.request_method_symbol == :put.

query_parameters()
Alias for: GET
raw_post() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 251
def raw_post
  unless @env.include? 'RAW_POST_DATA'
    raw_post_body = body
    @env['RAW_POST_DATA'] = raw_post_body.read(content_length)
    raw_post_body.rewind if raw_post_body.respond_to?(:rewind)
  end
  @env['RAW_POST_DATA']
end

Read the request body. This is useful for web services that need to work with raw requests directly.

remote_ip() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 230
def remote_ip
  @remote_ip ||= (@env["action_dispatch.remote_ip"] || ip).to_s
end

Originating IP address, usually set by the RemoteIp middleware.

request_method() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 104
def request_method
  @request_method ||= check_method(env["REQUEST_METHOD"])
end

Returns the HTTP method that the application should see. In the case where the method was overridden by a middleware (for instance, if a HEAD request was converted to a #GET, or if a _method parameter was used to determine the method the application should use), this method returns the overridden value, not the original.

request_method_symbol() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 115
def request_method_symbol
  HTTP_METHOD_LOOKUP[request_method]
end

Returns a symbol form of the request_method

request_parameters()
Alias for: POST
reset_session() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 281
def reset_session
  if session && session.respond_to?(:destroy)
    session.destroy
  else
    self.session = {}
  end
  @env['action_dispatch.request.flash_hash'] = nil
end

TODO This should be broken apart into AD::Request::Session and probably be included by the session middleware.

server_software() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 245
def server_software
  (@env['SERVER_SOFTWARE'] && /^([a-zA-Z]+)/ =~ @env['SERVER_SOFTWARE']) ? $1.downcase : nil
end

Returns the lowercase name of the HTTP server software.

session_options=(options) Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 294
def session_options=(options)
  Session::Options.set @env, options
end
uuid() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 240
def uuid
  @uuid ||= env["action_dispatch.request_id"]
end

Returns the unique request id, which is based on either the X-Request-Id header that can be generated by a firewall, load balancer, or web server or by the RequestId middleware (which sets the action_dispatch.request_id environment variable).

This unique ID is useful for tracing a request from end-to-end as part of logging or debugging. This relies on the rack variable set by the ActionDispatch::RequestId middleware.

xhr?()
Alias for: xml_http_request?
xml_http_request?() Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 220
def xml_http_request?
  @env['HTTP_X_REQUESTED_WITH'] =~ /XMLHttpRequest/i
end

Returns true if the “X-Requested-With” header contains “XMLHttpRequest” (case-insensitive), which may need to be manually added depending on the choice of JavaScript libraries and frameworks.

Also aliased as: xhr?

Protected Instance Methods

parse_query(qs) Show source 
# File actionpack/lib/action_dispatch/http/request.rb, line 338
def parse_query(qs)
  Utils.deep_munge(super)
end
Calls superclass method

© 2004–2018 David Heinemeier Hansson
Licensed under the MIT License.