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) extract_domain_from(host, tld_length) if named_host?(host) end def extract_subdomains(host, tld_length) if named_host?(host) extract_subdomains_from(host, tld_length) else [] end end def extract_subdomain(host, tld_length) extract_subdomains(host, tld_length).join('.') end def url_for(options) host = options[:host] unless 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 path = add_trailing_slash(path) if options[:trailing_slash] result = if options[:only_path] path else protocol = options[:protocol] port = options[:port] build_host_url(host, port, protocol, options).concat path end if options.key? :params param = options[:params] params = param.is_a?(Hash) ? param : { params: param } 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 extract_domain_from(host, tld_length) host.split('.').last(1 + tld_length).join('.') end def extract_subdomains_from(host, tld_length) parts = host.split('.') parts[0..-(tld_length + 2)] end 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(host, port, protocol, options) if match = host.match(HOST_REGEXP) protocol ||= match[1] unless protocol == false host = match[2] 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(port, protocol) { |normalized_port| result << ":#{normalized_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 "#{$1}://" else raise ArgumentError, "Invalid :protocol option: #{protocol.inspect}" end end def normalize_host(_host, options) return _host unless named_host?(_host) tld_length = options[:tld_length] || @@tld_length subdomain = options.fetch :subdomain, true domain = options[:domain] host = "" if subdomain == true return _host if domain.nil? host << extract_subdomains_from(_host, tld_length).join('.') elsif subdomain host << subdomain.to_param end host << "." unless host.empty? host << (domain || extract_domain_from(_host, tld_length)) host end def normalize_port(port, protocol) return unless port case protocol when "//" then yield port when "https://" yield port unless port.to_i == 443 else yield port unless port.to_i == 80 end end end def initialize(env) super @protocol = nil @port = nil end # Returns the complete URL used for this request. def url protocol + host_with_port + fullpath end # Returns 'https://' if this is an SSL request and 'http://' otherwise. def protocol @protocol ||= ssl? ? 'https://' : 'http://' end # Returns the \host for this request, such as "example.com". def raw_host_with_port if forwarded = env["HTTP_X_FORWARDED_HOST"] forwarded.split(/,\s?/).last else env['HTTP_HOST'] || "#{env['SERVER_NAME'] || env['SERVER_ADDR']}:#{env['SERVER_PORT']}" end end # Returns the host for this request, such as example.com. def host raw_host_with_port.sub(/:\d+$/, '') 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 tld_length, 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 ["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 = @@tld_length) ActionDispatch::Http::URL.extract_subdomains(host, tld_length) end # 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". def subdomain(tld_length = @@tld_length) ActionDispatch::Http::URL.extract_subdomain(host, tld_length) end end end end