Add support for Core bundle

ipinfo-rails.gemspec

@@ -21,7 +21,7 @@ Gem::Specification.new do |s|
     s.homepage = 'https://ipinfo.io'
     s.license = 'Apache-2.0'
 
-    s.add_dependency 'IPinfo', '~> 2.3'
+    s.add_dependency 'IPinfo', '~> 2.4'
     s.add_dependency 'rack', '~> 2.0'
 
     s.add_development_dependency 'mocha', '~> 2.7'

lib/ipinfo-rails.rb

@@ -3,6 +3,7 @@
 require 'rack'
 require 'ipinfo'
 require 'ipinfo_lite'
+require 'ipinfo_core'
 require 'ipinfo-rails/ip_selector/default_ip_selector'
 
 def is_bot(request)
@@ -73,3 +74,33 @@ def call(env)
     @app.call(env)
   end
 end
+
+class IPinfoCoreMiddleware
+  def initialize(app, options = {})
+    @app = app
+    @token = options.fetch(:token, nil)
+    @ipinfo = IPinfoCore.create(@token, options)
+    @filter = options.fetch(:filter, nil)
+    @ip_selector = options.fetch(:ip_selector, DefaultIPSelector)
+  end
+
+  def call(env)
+    env['called'] = 'yes'
+    request = Rack::Request.new(env)
+    ip_selector = @ip_selector.new(request)
+    filtered = if @filter.nil?
+                 is_bot(request)
+               else
+                 @filter.call(request)
+               end
+
+    if filtered
+      env['ipinfo'] = nil
+    else
+      ip = ip_selector.get_ip
+      env['ipinfo'] = @ipinfo.details(ip)
+    end
+
+    @app.call(env)
+  end
+end