edge badge
Methods
D
E
F
H
N
O
P
R
S
U
Constants
IP_HOST_REGEXP = /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/
 
HOST_REGEXP = /(^[^:]+:\/\/)?([^:]+)(?::(\d+$))?/
 
PROTOCOL_REGEXP = /^([^:]+)(:)?(\/\/)?$/
 
Class Public methods
extract_domain(host, tld_length)

Returns the domain part of a host given the domain level.

# Top-level domain example
extract_domain('www.example.com', 1) # => "example.com"
# Second-level domain example
extract_domain('dev.www.example.co.uk', 2) # => "example.co.uk"
# File actionpack/lib/action_dispatch/http/url.rb, line 21
def extract_domain(host, tld_length)
  extract_domain_from(host, tld_length) if named_host?(host)
end
extract_subdomain(host, tld_length)

Returns the subdomains of a host as a String given the domain level.

# Top-level domain example
extract_subdomain('www.example.com', 1) # => "www"
# Second-level domain example
extract_subdomain('dev.www.example.co.uk', 2) # => "dev.www"
# File actionpack/lib/action_dispatch/http/url.rb, line 45
def extract_subdomain(host, tld_length)
  extract_subdomains(host, tld_length).join('.')
end
extract_subdomains(host, tld_length)

Returns the subdomains of a host as an Array given the domain level.

# Top-level domain example
extract_subdomains('www.example.com', 1) # => ["www"]
# Second-level domain example
extract_subdomains('dev.www.example.co.uk', 2) # => ["dev", "www"]
# File actionpack/lib/action_dispatch/http/url.rb, line 31
def extract_subdomains(host, tld_length)
  if named_host?(host)
    extract_subdomains_from(host, tld_length)
  else
    []
  end
end
full_url_for(options)
# File actionpack/lib/action_dispatch/http/url.rb, line 57
def full_url_for(options)
  host     = options[:host]
  protocol = options[:protocol]
  port     = options[:port]

  unless host
    raise ArgumentError, 'Missing host to link to! Please provide the :host parameter, set default_url_options[:host], or set :only_path to true'
  end

  build_host_url(host, port, protocol, options, path_for(options))
end
new(env)
# File actionpack/lib/action_dispatch/http/url.rb, line 187
def initialize(env)
  super
  @protocol = nil
  @port     = nil
end
path_for(options)
# File actionpack/lib/action_dispatch/http/url.rb, line 69
def path_for(options)
  path  = options[:script_name].to_s.chomp("/")
  path << options[:path] if options.key?(:path)

  add_trailing_slash(path) if options[:trailing_slash]
  add_params(path, options[:params]) if options.key?(:params)
  add_anchor(path, options[:anchor]) if options.key?(:anchor)

  path
end
url_for(options)
# File actionpack/lib/action_dispatch/http/url.rb, line 49
def url_for(options)
  if options[:only_path]
    path_for options
  else
    full_url_for options
  end
end
Instance Public methods
domain(tld_length = @@tld_length)

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”.

# File actionpack/lib/action_dispatch/http/url.rb, line 356
def domain(tld_length = @@tld_length)
  ActionDispatch::Http::URL.extract_domain(host, tld_length)
end
host()

Returns the host for this request, such as example.com.

class Request < Rack::Request
  include ActionDispatch::Http::URL
end

req = Request.new 'HTTP_HOST' => 'example.com:8080'
req.host # => "example.com"
# File actionpack/lib/action_dispatch/http/url.rb, line 247
def host
  raw_host_with_port.sub(/:\d+$/, '')
end
host_with_port()

Returns a host:port string for this request, such as “example.com” or “example.com:8080”.

class Request < Rack::Request
  include ActionDispatch::Http::URL
end

req = Request.new 'HTTP_HOST' => 'example.com:80'
req.host_with_port # => "example.com"

req = Request.new 'HTTP_HOST' => 'example.com:8080'
req.host_with_port # => "example.com:8080"
# File actionpack/lib/action_dispatch/http/url.rb, line 263
def host_with_port
  "#{host}#{port_string}"
end
optional_port()

Returns a number port suffix like 8080 if the port number of this request is not the default HTTP port 80 or HTTPS port 443.

class Request < Rack::Request
  include ActionDispatch::Http::URL
end

req = Request.new 'HTTP_HOST' => 'example.com:80'
req.optional_port # => nil

req = Request.new 'HTTP_HOST' => 'example.com:8080'
req.optional_port # => 8080
# File actionpack/lib/action_dispatch/http/url.rb, line 330
def optional_port
  standard_port? ? nil : port
end
port()

Returns the port number of this request as an integer.

class Request < Rack::Request
  include ActionDispatch::Http::URL
end

req = Request.new 'HTTP_HOST' => 'example.com'
req.port # => 80

req = Request.new 'HTTP_HOST' => 'example.com:8080'
req.port # => 8080
# File actionpack/lib/action_dispatch/http/url.rb, line 278
def port
  @port ||= begin
    if raw_host_with_port =~ /:(\d+)$/
      $1.to_i
    else
      standard_port
    end
  end
end
port_string()

Returns a string port suffix, including colon, like “:8080” if the port number of this request is not the default HTTP port 80 or HTTPS port 443.

class Request < Rack::Request
  include ActionDispatch::Http::URL
end

req = Request.new 'HTTP_HOST' => 'example.com:80'
req.port_string # => ""

req = Request.new 'HTTP_HOST' => 'example.com:8080'
req.port_string # => ":8080"
# File actionpack/lib/action_dispatch/http/url.rb, line 346
def port_string
  standard_port? ? '' : ":#{port}"
end
protocol()

Returns 'https://' if this is an SSL request and 'http://' otherwise.

class Request < Rack::Request
  include ActionDispatch::Http::URL
end

req = Request.new 'HTTP_HOST' => 'example.com'
req.protocol # => "http://"

req = Request.new 'HTTP_HOST' => 'example.com', 'HTTPS' => 'on'
req.protocol # => "https://"
# File actionpack/lib/action_dispatch/http/url.rb, line 216
def protocol
  @protocol ||= ssl? ? 'https://' : 'http://'
end
raw_host_with_port()

Returns the host for this request, such as “example.com”.

class Request < Rack::Request
  include ActionDispatch::Http::URL
end

req = Request.new 'HTTP_HOST' => 'example.com'
req.raw_host_with_port # => "example.com"

req = Request.new 'HTTP_HOST' => 'example.com:8080'
req.raw_host_with_port # => "example.com:8080"
# File actionpack/lib/action_dispatch/http/url.rb, line 231
def raw_host_with_port
  if forwarded = env["HTTP_X_FORWARDED_HOST"]
    forwarded.split(/,\s?/).last
  else
    env['HTTP_HOST'] || "#{env['SERVER_NAME'] || env['SERVER_ADDR']}:#{env['SERVER_PORT']}"
  end
end
server_port()
# File actionpack/lib/action_dispatch/http/url.rb, line 350
def server_port
  @env['SERVER_PORT'].to_i
end
standard_port()

Returns the standard port number for this request's protocol.

class Request < Rack::Request
  include ActionDispatch::Http::URL
end

req = Request.new 'HTTP_HOST' => 'example.com:8080'
req.standard_port # => 80
# File actionpack/lib/action_dispatch/http/url.rb, line 296
def standard_port
  case protocol
    when 'https://' then 443
    else 80
  end
end
standard_port?()

Returns whether this request is using the standard port

class Request < Rack::Request
  include ActionDispatch::Http::URL
end

req = Request.new 'HTTP_HOST' => 'example.com:80'
req.standard_port? # => true

req = Request.new 'HTTP_HOST' => 'example.com:8080'
req.standard_port? # => false
# File actionpack/lib/action_dispatch/http/url.rb, line 314
def standard_port?
  port == standard_port
end
subdomain(tld_length = @@tld_length)

Returns all the subdomains as a string, 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”.

# File actionpack/lib/action_dispatch/http/url.rb, line 372
def subdomain(tld_length = @@tld_length)
  ActionDispatch::Http::URL.extract_subdomain(host, tld_length)
end
subdomains(tld_length = @@tld_length)

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”.

# File actionpack/lib/action_dispatch/http/url.rb, line 364
def subdomains(tld_length = @@tld_length)
  ActionDispatch::Http::URL.extract_subdomains(host, tld_length)
end
url()

Returns the complete URL used for this request.

class Request < Rack::Request
  include ActionDispatch::Http::URL
end

req = Request.new 'HTTP_HOST' => 'example.com'
req.url # => "http://example.com"
# File actionpack/lib/action_dispatch/http/url.rb, line 201
def url
  protocol + host_with_port + fullpath
end