method

remote_ip

Ruby on Rails latest stable (v3.2.13) - 0 notes - Class: ActionController::AbstractRequest

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3.2.13
What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v2.2.1) is shown here.

These similar methods exist in v3.2.13:

ActionDispatch::Request#remote_ip

remote_ip() public

Determines originating IP address. REMOTE_ADDR is the standard but will fail if the user is behind a proxy. HTTP_CLIENT_IP and/or HTTP_X_FORWARDED_FOR are set by proxies so check for these if REMOTE_ADDR is a proxy. HTTP_X_FORWARDED_FOR may be a comma- delimited list in the case of multiple chained proxies; the last address which is not trusted is the originating IP.

Show source

# File actionpack/lib/action_controller/request.rb, line 211
    def remote_ip
      remote_addr_list = @env['REMOTE_ADDR'] && @env['REMOTE_ADDR'].split(',').collect(&:strip)

      unless remote_addr_list.blank?
        not_trusted_addrs = remote_addr_list.reject {|addr| addr =~ TRUSTED_PROXIES}
        return not_trusted_addrs.first unless not_trusted_addrs.empty?
      end
      remote_ips = @env['HTTP_X_FORWARDED_FOR'] && @env['HTTP_X_FORWARDED_FOR'].split(',')

      if @env.include? 'HTTP_CLIENT_IP'
        if remote_ips && !remote_ips.include?(@env['HTTP_CLIENT_IP'])
          # We don't know which came from the proxy, and which from the user
          raise ActionControllerError.new("IP spoofing attack?!\nHTTP_CLIENT_IP=\#{@env['HTTP_CLIENT_IP'].inspect}\nHTTP_X_FORWARDED_FOR=\#{@env['HTTP_X_FORWARDED_FOR'].inspect}\n")
        end

        return @env['HTTP_CLIENT_IP']
      end

      if remote_ips
        while remote_ips.size > 1 && TRUSTED_PROXIES =~ remote_ips.last.strip
          remote_ips.pop
        end

        return remote_ips.last.strip
      end

      @env['REMOTE_ADDR']
    end

remote_ip

Related methods

Method deprecated or moved

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