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rails--rails/actionpack/lib/action_dispatch/http/url.rb
Aaron Patterson ed37698596 remove useless nil check
irb(main):004:0> /foo/ !~ nil
=> true
irb(main):005:0> /foo/ !~ 'bar'
=> true
irb(main):006:0> /foo/ !~ 'foo'
=> false
2014-06-11 14:40:45 -07:00

248 lines
7.5 KiB
Ruby

require 'active_support/core_ext/module/attribute_accessors'
require 'active_support/core_ext/hash/slice'
module ActionDispatch
module Http
module URL
IP_HOST_REGEXP = /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/
HOST_REGEXP = /(^.*:\/\/)?([^:]+)(?::(\d+$))?/
PROTOCOL_REGEXP = /^([^:]+)(:)?(\/\/)?$/
mattr_accessor :tld_length
self.tld_length = 1
class << self
def extract_domain(host, tld_length)
host.split('.').last(1 + tld_length).join('.') if named_host?(host)
end
def extract_subdomains(host, tld_length)
if named_host?(host)
parts = host.split('.')
parts[0..-(tld_length + 2)]
else
[]
end
end
def extract_subdomain(host, tld_length)
extract_subdomains(host, tld_length).join('.')
end
def url_for(options)
unless options[:host] || options[:only_path]
raise ArgumentError, 'Missing host to link to! Please provide the :host parameter, set default_url_options[:host], or set :only_path to true'
end
path = options[:script_name].to_s.chomp("/")
path << options[:path].to_s
add_trailing_slash(path) if options[:trailing_slash]
result = path
unless options[:only_path]
result.prepend build_host_url(options)
end
if options.key? :params
params = options[:params].is_a?(Hash) ?
options[:params] :
{ params: options[:params] }
params.reject! { |_,v| v.to_param.nil? }
result << "?#{params.to_query}" unless params.empty?
end
result << "##{Journey::Router::Utils.escape_fragment(options[:anchor].to_param.to_s)}" if options[:anchor]
result
end
private
def add_trailing_slash(path)
# includes querysting
if path.include?('?')
path.sub!(/\?/, '/\&')
# does not have a .format
elsif !path.include?(".")
path.sub!(/[^\/]\z|\A\z/, '\&/')
end
path
end
def build_host_url(options)
protocol = options[:protocol]
host = options[:host]
if match = host.match(HOST_REGEXP)
protocol ||= match[1] unless protocol == false
host = match[2]
options[:port] = match[3] unless options.key?(:port)
end
protocol = normalize_protocol protocol
host = normalize_host(host, options)
result = protocol.dup
if options[:user] && options[:password]
result << "#{Rack::Utils.escape(options[:user])}:#{Rack::Utils.escape(options[:password])}@"
end
result << host
normalize_port(options[:port], protocol) { |port|
result << ":#{port}"
}
result
end
def named_host?(host)
IP_HOST_REGEXP !~ host
end
def normalize_protocol(protocol)
case protocol
when nil
"http://"
when false, "//"
"//"
when PROTOCOL_REGEXP
"#{$1}://"
else
raise ArgumentError, "Invalid :protocol option: #{protocol.inspect}"
end
end
def normalize_host(_host, options)
return _host unless named_host?(_host)
tld_length = options[:tld_length] || @@tld_length
host = ""
if options[:subdomain] == true || !options.key?(:subdomain)
return _host if options[:domain].nil?
host << extract_subdomain(_host, tld_length).to_param
elsif options[:subdomain].present?
host << options[:subdomain].to_param
end
host << "." unless host.empty?
host << (options[:domain] || extract_domain(_host, tld_length))
host
end
def normalize_port(port, protocol)
return unless port
case protocol
when "//" then yield port
when "https://"
yield port unless port.to_i == 443
else
yield port unless port.to_i == 80
end
end
end
def initialize(env)
super
@protocol = nil
@port = nil
end
# Returns the complete URL used for this request.
def url
protocol + host_with_port + fullpath
end
# Returns 'https://' if this is an SSL request and 'http://' otherwise.
def protocol
@protocol ||= ssl? ? 'https://' : 'http://'
end
# Returns the \host for this request, such as "example.com".
def raw_host_with_port
if forwarded = env["HTTP_X_FORWARDED_HOST"]
forwarded.split(/,\s?/).last
else
env['HTTP_HOST'] || "#{env['SERVER_NAME'] || env['SERVER_ADDR']}:#{env['SERVER_PORT']}"
end
end
# Returns the host for this request, such as example.com.
def host
raw_host_with_port.sub(/:\d+$/, '')
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
# Returns the port number of this request as an integer.
def port
@port ||= begin
if raw_host_with_port =~ /:(\d+)$/
$1.to_i
else
standard_port
end
end
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 whether this request is using the standard port
def standard_port?
port == standard_port
end
# 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.
def optional_port
standard_port? ? nil : port
end
# 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.
def port_string
standard_port? ? '' : ":#{port}"
end
def server_port
@env['SERVER_PORT'].to_i
end
# Returns the \domain part of a \host, such as "rubyonrails.org" in "www.rubyonrails.org". You can specify
# a different <tt>tld_length</tt>, such as 2 to catch rubyonrails.co.uk in "www.rubyonrails.co.uk".
def domain(tld_length = @@tld_length)
ActionDispatch::Http::URL.extract_domain(host, tld_length)
end
# Returns all the \subdomains as an array, so <tt>["dev", "www"]</tt> would be
# returned for "dev.www.rubyonrails.org". You can specify a different <tt>tld_length</tt>,
# such as 2 to catch <tt>["www"]</tt> instead of <tt>["www", "rubyonrails"]</tt>
# in "www.rubyonrails.co.uk".
def subdomains(tld_length = @@tld_length)
ActionDispatch::Http::URL.extract_subdomains(host, tld_length)
end
# Returns all the \subdomains as a string, so <tt>"dev.www"</tt> would be
# returned for "dev.www.rubyonrails.org". You can specify a different <tt>tld_length</tt>,
# such as 2 to catch <tt>"www"</tt> instead of <tt>"www.rubyonrails"</tt>
# in "www.rubyonrails.co.uk".
def subdomain(tld_length = @@tld_length)
ActionDispatch::Http::URL.extract_subdomain(host, tld_length)
end
end
end
end