Ruby实现：检测浏览器类型与平台信息

首先写一个类，用来封装获取系统平台以及浏览器信息的方法

 
Ruby代码  收藏代码

    class Info  
      attr_accessor :env, :browser, :platform  
      
      def initialize(request)  
        self.env = request  
        get_platform  
        get_browser  
      end  
      
      protected  
      #获取系统平台  
      def get_platform  
        begin  
          if self.env['HTTP_USER_AGENT'] =~ /Win/i  
            self.platform = "Windows"  
          elsif self.env['HTTP_USER_AGENT'] =~ /Mac/i  
            self.platform = "Mac"  
          elsif self.env['HTTP_USER_AGENT'] =~ /BSD/i  
            self.platform = "FreeBSD";  
          elsif self.env['HTTP_USER_AGENT'] =~ /Linux/i  
            self.platform = "Linux";  
          elsif self.env['HTTP_USER_AGENT'] =~ /SunOS/i  
            self.platform = "Sun Solaris";  
          elsif  self.env["HTTP_USER_AGENT"] =~ /iPhone/i  
            self.platform = "iPhone";  

          else  
            self.platform = nil  
          end  
        rescue  
          self.platform = nil  
        end  
      end  
      
      #获取浏览器信息  
      def get_browser  
        self.browser = {  
          :type => nil,  
          :version => nil  
        }  
        begin  
          #Internet Exlorer  
          if self.env['HTTP_USER_AGENT'] =~ /MSIE/i && self.env['HTTP_USER_AGENT'].scan(/AOL|America Online Browser/i).empty?  
            browser[:type] = "MSIE";  
            browser[:version] = self.env['HTTP_USER_AGENT'].scan(/MSIE ([\d\.]+)/i).to_s  
            #Firefox/Firebird/Phoenix  
          elsif self.env['HTTP_USER_AGENT'] =~ /Firefox|Firebird|Phoenix/i  
            browser[:type] = "Firefox";  
            browser[:version] = self.env['HTTP_USER_AGENT'].scan(/[Firefox|Firebird|Phoenix].\/(\d.+)/i).to_s  
            #Galeon  
          elsif self.env['HTTP_USER_AGENT'] =~ /Galeon/i  
            browser[:type] = "Galeon";  
            browser[:version] = self.env['HTTP_USER_AGENT'].scan(/Galeon\/([\d\.]+)/i).to_s  
            #Safari  
          elsif self.env['HTTP_USER_AGENT'] =~ /Safari/i  
            browser[:type] = "Safari";