Contents

module Rack
  module Schmobile
    class UserAgents

      MOBILE_USER_AGENTS = %w(
        alcatel amoi android astel audiovox blackberry cdm chtml danger docomo ericsson htc_touch
        iphone ipod j2me kddi midp minimo mmp mobi mobile mobileexplorer mot- motorola netfront nokia
        novarra palm pdxgw phone plucker pocket portable portalmmm sagem samsung sgh sie- softbank
        sprint symbian telit ucweb up.b upg1 vodafone webos windows\ ce x240 x320 xiino
      )

      NON_MOBILE_USER_AGENTS = %w(
        ipad
      )

      def self.remove_user_agent_pattern(pattern)
        MOBILE_USER_AGENTS.delete(pattern)
        @mobile_agent_matcher = nil
      end

      def self.add_user_agent_pattern(pattern)
        MOBILE_USER_AGENTS.push(*pattern)
        @mobile_agent_matcher = nil
      end

      def self.remove_non_mobile_user_agent_pattern(pattern)
        NON_MOBILE_USER_AGENTS.delete(pattern)
        @non_mobile_agent_matcher = nil
      end

      def self.add_non_mobile_user_agent_pattern(pattern)
        NON_MOBILE_USER_AGENTS.push(*pattern)
        @non_mobile_agent_matcher = nil
      end

      def self.is_mobile_agent?(user_agent)
        agent  = user_agent.to_s.downcase
        mobile = !(agent =~ mobile_agent_matcher).nil?
        mobile = mobile && agent !~ non_mobile_agent_matcher unless NON_MOBILE_USER_AGENTS.empty?
        mobile
      end

      def self.mobile_agent_matcher
        @mobile_agent_matcher ||= Regexp.new(MOBILE_USER_AGENTS.uniq.compact.map { |v| Regexp.escape(v) }.join("|"))
      end

      def self.non_mobile_agent_matcher
        @non_mobile_agent_matcher ||= Regexp.new(NON_MOBILE_USER_AGENTS.uniq.compact.map { |v| Regexp.escape(v) }.join("|"))
      end

      def self.matched_by?(user_agent)
        MOBILE_USER_AGENTS.each do |agent|
          return agent if user_agent =~ /#{agent}/
        end
        nil
      end

    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
schmobile-0.4.1	lib/rack/schmobile/user_agents.rb