module ActionController # Subclassing AbstractRequest makes these methods available to the request objects used in production and testing, # CgiRequest and TestRequest class AbstractRequest cattr_accessor :relative_url_root # Returns the hash of environment variables for this request, # such as { 'RAILS_ENV' => 'production' }. attr_reader :env # Returns both GET and POST parameters in a single hash. def parameters @parameters ||= request_parameters.update(query_parameters).update(path_parameters).with_indifferent_access end # Returns the HTTP request method as a lowercase symbol (:get, for example). Note, HEAD is returned as :get # since the two are supposedly to be functionaly equivilent for all purposes except that HEAD won't return a response # body (which Rails also takes care of elsewhere). def method @request_method ||= (!parameters[:_method].blank? && @env['REQUEST_METHOD'] == 'POST') ? parameters[:_method].to_s.downcase.to_sym : @env['REQUEST_METHOD'].downcase.to_sym @request_method == :head ? :get : @request_method end # Is this a GET (or HEAD) request? Equivalent to request.method == :get def get? method == :get end # Is this a POST request? Equivalent to request.method == :post def post? method == :post end # Is this a PUT request? Equivalent to request.method == :put def put? method == :put end # Is this a DELETE request? Equivalent to request.method == :delete def delete? method == :delete end # Is this a HEAD request? HEAD is mapped as :get for request.method, so here we ask the # REQUEST_METHOD header directly. Thus, for head, both get? and head? will return true. def head? @env['REQUEST_METHOD'].downcase.to_sym == :head end # Determine whether the body of a HTTP call is URL-encoded (default) # or matches one of the registered param_parsers. # # For backward compatibility, the post format is extracted from the # X-Post-Data-Format HTTP header if present. def content_type @content_type ||= begin content_type = @env['CONTENT_TYPE'].to_s.downcase if x_post_format = @env['HTTP_X_POST_DATA_FORMAT'] case x_post_format.to_s.downcase when 'yaml' content_type = 'application/x-yaml' when 'xml' content_type = 'application/xml' end end Mime::Type.lookup(content_type) end end # Returns the accepted MIME type for the request def accepts @accepts ||= if @env['HTTP_ACCEPT'].to_s.strip.empty? [ content_type, Mime::ALL ] else Mime::Type.parse(@env['HTTP_ACCEPT']) end end # Returns the Mime type for the format used in the request. If there is no format available, the first of the # accept types will be used. Examples: # # GET /posts/5.xml | request.format => Mime::XML # GET /posts/5.xhtml | request.format => Mime::HTML # GET /posts/5 | request.format => request.accepts.first (usually Mime::HTML for browsers) def format parameters[:format] ? Mime::Type.lookup_by_extension(parameters[:format]) : accepts.first end # Returns true if the request's "X-Requested-With" header contains # "XMLHttpRequest". (The Prototype Javascript library sends this header with # every Ajax request.) def xml_http_request? not /XMLHttpRequest/i.match(@env['HTTP_X_REQUESTED_WITH']).nil? end alias xhr? :xml_http_request? # Determine originating IP address. REMOTE_ADDR is the standard # but will fail if the user is behind a proxy. HTTP_CLIENT_IP and/or # HTTP_X_FORWARDED_FOR are set by proxies so check for these before # falling back to REMOTE_ADDR. HTTP_X_FORWARDED_FOR may be a comma- # delimited list in the case of multiple chained proxies; the first is # the originating IP. def remote_ip return @env['HTTP_CLIENT_IP'] if @env.include? 'HTTP_CLIENT_IP' if @env.include? 'HTTP_X_FORWARDED_FOR' then remote_ips = @env['HTTP_X_FORWARDED_FOR'].split(',').reject do |ip| ip =~ /^unknown$|^(10|172\.(1[6-9]|2[0-9]|30|31)|192\.168)\./i end return remote_ips.first.strip unless remote_ips.empty? end @env['REMOTE_ADDR'] end # Returns the domain part of a host, such as rubyonrails.org in "www.rubyonrails.org". You can specify # a different tld_length, such as 2 to catch rubyonrails.co.uk in "www.rubyonrails.co.uk". def domain(tld_length = 1) return nil if !/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/.match(host).nil? or host.nil? host.split('.').last(1 + tld_length).join('.') end # Returns all the subdomains as an array, so ["dev", "www"] would be returned for "dev.www.rubyonrails.org". # You can specify a different tld_length, such as 2 to catch ["www"] instead of ["www", "rubyonrails"] # in "www.rubyonrails.co.uk". def subdomains(tld_length = 1) return [] unless host parts = host.split('.') parts[0..-(tld_length+2)] end # Receive the raw post data. # This is useful for services such as REST, XMLRPC and SOAP # which communicate over HTTP POST but don't use the traditional parameter format. def raw_post @env['RAW_POST_DATA'] end # Returns the request URI correctly, taking into account the idiosyncracies # of the various servers. def request_uri if uri = @env['REQUEST_URI'] (%r{^\w+\://[^/]+(/.*|$)$} =~ uri) ? $1 : uri # Remove domain, which webrick puts into the request_uri. else # REQUEST_URI is blank under IIS - get this from PATH_INFO and SCRIPT_NAME script_filename = @env['SCRIPT_NAME'].to_s.match(%r{[^/]+$}) uri = @env['PATH_INFO'] uri = uri.sub(/#{script_filename}\//, '') unless script_filename.nil? unless (env_qs = @env['QUERY_STRING']).nil? || env_qs.empty? uri << '?' << env_qs end uri end end # Return 'https://' if this is an SSL request and 'http://' otherwise. def protocol ssl? ? 'https://' : 'http://' end # Is this an SSL request? def ssl? @env['HTTPS'] == 'on' || @env['HTTP_X_FORWARDED_PROTO'] == 'https' end # Returns the interpreted path to requested resource after all the installation directory of this application was taken into account def path path = (uri = request_uri) ? uri.split('?').first : '' # Cut off the path to the installation directory if given path.sub!(%r/^#{relative_url_root}/, '') path || '' end # Returns the path minus the web server relative installation directory. # This can be set with the environment variable RAILS_RELATIVE_URL_ROOT. # It can be automatically extracted for Apache setups. If the server is not # Apache, this method returns an empty string. def relative_url_root @@relative_url_root ||= case when @env["RAILS_RELATIVE_URL_ROOT"] @env["RAILS_RELATIVE_URL_ROOT"] when server_software == 'apache' @env["SCRIPT_NAME"].to_s.sub(/\/dispatch\.(fcgi|rb|cgi)$/, '') else '' end end # Returns the port number of this request as an integer. def port @port_as_int ||= @env['SERVER_PORT'].to_i end # Returns the standard port number for this request's protocol def standard_port case protocol when 'https://' then 443 else 80 end end # Returns a port suffix like ":8080" if the port number of this request # is not the default HTTP port 80 or HTTPS port 443. def port_string (port == standard_port) ? '' : ":#{port}" end # Returns a host:port string for this request, such as example.com or # example.com:8080. def host_with_port host + port_string end def path_parameters=(parameters) #:nodoc: @path_parameters = parameters @symbolized_path_parameters = @parameters = nil end # The same as path_parameters with explicitly symbolized keys def symbolized_path_parameters @symbolized_path_parameters ||= path_parameters.symbolize_keys end # Returns a hash with the parameters used to form the path of the request # # Example: # # {:action => 'my_action', :controller => 'my_controller'} def path_parameters @path_parameters ||= {} end # Returns the lowercase name of the HTTP server software. def server_software (@env['SERVER_SOFTWARE'] && /^([a-zA-Z]+)/ =~ @env['SERVER_SOFTWARE']) ? $1.downcase : nil end #-- # Must be implemented in the concrete request #++ def query_parameters #:nodoc: end def request_parameters #:nodoc: end # Returns the host for this request, such as example.com. def host end def cookies #:nodoc: end def session #:nodoc: end def session=(session) #:nodoc: @session = session end def reset_session #:nodoc: end end end