Class: ActionDispatch::Request

Inherits:
Rack::Request
  • Object
show all
Includes:
Http::Cache::Request, Http::FilterParameters, Http::MimeNegotiation, Http::Parameters, Http::URL
Defined in:
actionpack/lib/action_dispatch/http/request.rb,
actionpack/lib/action_dispatch/request/utils.rb,
actionpack/lib/action_dispatch/request/session.rb,
actionpack/lib/action_dispatch/middleware/flash.rb,
actionpack/lib/action_dispatch/middleware/cookies.rb

Direct Known Subclasses

TestRequest

Defined Under Namespace

Classes: Session, Utils

Constant Summary collapse

LOCALHOST =
Regexp.union [/^127\.\d{1,3}\.\d{1,3}\.\d{1,3}$/, /^::1$/, /^0:0:0:0:0:0:0:1(%.*)?$/]
ENV_METHODS =
%w[ AUTH_TYPE GATEWAY_INTERFACE
PATH_TRANSLATED REMOTE_HOST
REMOTE_IDENT REMOTE_USER REMOTE_ADDR
SERVER_NAME SERVER_PROTOCOL

HTTP_ACCEPT HTTP_ACCEPT_CHARSET HTTP_ACCEPT_ENCODING
HTTP_ACCEPT_LANGUAGE HTTP_CACHE_CONTROL HTTP_FROM
HTTP_NEGOTIATE HTTP_PRAGMA ].freeze
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)

%w(OPTIONS GET HEAD POST PUT DELETE TRACE CONNECT)
RFC2518 =
%w(PROPFIND PROPPATCH MKCOL COPY MOVE LOCK UNLOCK)
RFC3253 =
%w(VERSION-CONTROL REPORT CHECKOUT CHECKIN UNCHECKOUT MKWORKSPACE UPDATE LABEL MERGE BASELINE-CONTROL MKACTIVITY)
RFC3648 =
%w(ORDERPATCH)
RFC3744 =
%w(ACL)
RFC5323 =
%w(SEARCH)
RFC4791 =
%w(MKCALENDAR)
RFC5789 =
%w(PATCH)
HTTP_METHODS =
RFC2616 + RFC2518 + RFC3253 + RFC3648 + RFC3744 + RFC5323 + RFC4791 + RFC5789
HTTP_METHOD_LOOKUP =
{}

Constants included from Http::URL

Http::URL::HOST_REGEXP, Http::URL::IP_HOST_REGEXP, Http::URL::PROTOCOL_REGEXP

Constants included from Http::FilterParameters

Http::FilterParameters::ENV_MATCH, Http::FilterParameters::NULL_ENV_FILTER, Http::FilterParameters::NULL_PARAM_FILTER

Constants included from Http::Parameters

Http::Parameters::PARAMETERS_KEY

Constants included from Http::Cache::Request

Http::Cache::Request::HTTP_IF_MODIFIED_SINCE, Http::Cache::Request::HTTP_IF_NONE_MATCH

Instance Attribute Summary

Attributes included from Http::MimeNegotiation

#variant

Instance Method Summary collapse

Methods included from Http::URL

#domain, extract_domain, extract_subdomain, extract_subdomains, full_url_for, #host, #host_with_port, #optional_port, path_for, #port, #port_string, #protocol, #raw_host_with_port, #server_port, #standard_port, #standard_port?, #subdomain, #subdomains, #url, url_for

Methods included from Http::FilterParameters

#filtered_env, #filtered_parameters, #filtered_path

Methods included from Http::Parameters

#parameters, #path_parameters, #path_parameters=, #symbolized_path_parameters

Methods included from Http::MimeNegotiation

#accepts, #content_mime_type, #content_type, #format, #format=, #formats, #formats=, #negotiate_mime

Methods included from ActiveSupport::Concern

#append_features, #class_methods, extended, #included

Methods included from Http::Cache::Request

#etag_matches?, #fresh?, #if_modified_since, #if_none_match, #if_none_match_etags, #not_modified?

Constructor Details

#initialize(env) ⇒ Request

Returns a new instance of Request.


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# 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

Instance Method Details

#authorizationObject

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


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# 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

#bodyObject

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


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# 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

#body_streamObject

:nodoc:


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 275

def body_stream #:nodoc:
  @env['rack.input']
end

#check_path_parameters!Object


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# 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_lengthObject

Returns the content length of the request as an integer.


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 213

def content_length
  super.to_i
end

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# File 'actionpack/lib/action_dispatch/middleware/cookies.rb', line 10

def cookie_jar
  env['action_dispatch.cookies'] ||= Cookies::CookieJar.build(self)
end

#deep_munge(hash) ⇒ Object

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


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# 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

#delete?Boolean

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

Returns:

  • (Boolean)

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 157

def delete?
  HTTP_METHOD_LOOKUP[request_method] == :delete
end

#flashObject

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.


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# File 'actionpack/lib/action_dispatch/middleware/flash.rb', line 8

def flash
  @env[Flash::KEY] ||= Flash::FlashHash.from_session_value(session["flash"])
end

#form_data?Boolean

Returns:

  • (Boolean)

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 271

def form_data?
  FORM_DATA_MEDIA_TYPES.include?(content_mime_type.to_s)
end

#fullpathObject

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"

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 192

def fullpath
  @fullpath ||= super
end

#GETObject Also known as: query_parameters

Override Rack's GET method to support indifferent access


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# 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

#get?Boolean

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

Returns:

  • (Boolean)

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 133

def get?
  HTTP_METHOD_LOOKUP[request_method] == :get
end

#head?Boolean

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

Returns:

  • (Boolean)

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 163

def head?
  HTTP_METHOD_LOOKUP[request_method] == :head
end

#headersObject

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

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

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 170

def headers
  Http::Headers.new(@env)
end

#ipObject


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 225

def ip
  @ip ||= super
end

#key?(key) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 67

def key?(key)
  @env.key?(key)
end

#local?Boolean

True if the request came from localhost, 127.0.0.1.

Returns:

  • (Boolean)

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 324

def local?
  LOCALHOST =~ remote_addr && LOCALHOST =~ remote_ip
end

#media_typeObject

The String MIME type of the request.

# get "/articles"
request.media_type # => "application/x-www-form-urlencoded"

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 208

def media_type
  content_mime_type.to_s
end

#methodObject

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


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 122

def method
  @method ||= check_method(env["rack.methodoverride.original_method"] || env['REQUEST_METHOD'])
end

#method_symbolObject

Returns a symbol form of the #method


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 127

def method_symbol
  HTTP_METHOD_LOOKUP[method]
end

#original_fullpathObject

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'

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 181

def original_fullpath
  @original_fullpath ||= (env["ORIGINAL_FULLPATH"] || fullpath)
end

#original_urlObject

Returns the original request URL as a String.

# get "/articles?page=2"
request.original_url # => "http://www.example.com/articles?page=2"

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 200

def original_url
  base_url + original_fullpath
end

#patch?Boolean

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

Returns:

  • (Boolean)

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 145

def patch?
  HTTP_METHOD_LOOKUP[request_method] == :patch
end

#POSTObject Also known as: request_parameters

Override Rack's POST method to support indifferent access


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# 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

#post?Boolean

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

Returns:

  • (Boolean)

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 139

def post?
  HTTP_METHOD_LOOKUP[request_method] == :post
end

#put?Boolean

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

Returns:

  • (Boolean)

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 151

def put?
  HTTP_METHOD_LOOKUP[request_method] == :put
end

#raw_postObject

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


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# 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

#remote_ipObject

Originating IP address, usually set by the RemoteIp middleware.


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 230

def remote_ip
  @remote_ip ||= (@env["action_dispatch.remote_ip"] || ip).to_s
end

#request_methodObject

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.


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 104

def request_method
  @request_method ||= check_method(env["REQUEST_METHOD"])
end

#request_method=(request_method) ⇒ Object

:nodoc:


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 108

def request_method=(request_method) #:nodoc:
  if check_method(request_method)
    @request_method = env["REQUEST_METHOD"] = request_method
  end
end

#request_method_symbolObject

Returns a symbol form of the #request_method


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 115

def request_method_symbol
  HTTP_METHOD_LOOKUP[request_method]
end

#reset_sessionObject

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


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# 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

#server_softwareObject

Returns the lowercase name of the HTTP server software.


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# 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

#session=(session) ⇒ Object

:nodoc:


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 290

def session=(session) #:nodoc:
  Session.set @env, session
end

#session_options=(options) ⇒ Object


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 294

def session_options=(options)
  Session::Options.set @env, options
end

#uuidObject

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.


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# File 'actionpack/lib/action_dispatch/http/request.rb', line 240

def uuid
  @uuid ||= env["action_dispatch.request_id"]
end

#xml_http_request?Boolean Also known as: xhr?

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.

Returns:

  • (Boolean)

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# File 'actionpack/lib/action_dispatch/http/request.rb', line 220

def xml_http_request?
  @env['HTTP_X_REQUESTED_WITH'] =~ /XMLHttpRequest/i
end