1 files changed, 65 insertions, 0 deletions
diff --git a/lib/bundler/ssl_certs/certificate_manager.rb b/lib/bundler/ssl_certs/certificate_manager.rb
new file mode 100644
index 0000000000..a5e5d84b64
--- /dev/null
+++ b/lib/bundler/ssl_certs/certificate_manager.rb
@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+require "fileutils"
+require "net/https"
+require "openssl"
+
+module Bundler
+  module SSLCerts
+    class CertificateManager
+      attr_reader :bundler_cert_path, :bundler_certs, :rubygems_certs
+
+      def self.update_from!(rubygems_path)
+        new(rubygems_path).update!
+      end
+
+      def initialize(rubygems_path = nil)
+        if rubygems_path
+          rubygems_cert_path = File.join(rubygems_path, "lib/rubygems/ssl_certs")
+          @rubygems_certs = certificates_in(rubygems_cert_path)
+        end
+
+        @bundler_cert_path = File.expand_path("..", __FILE__)
+        @bundler_certs = certificates_in(bundler_cert_path)
+      end
+
+      def up_to_date?
+        rubygems_certs.all? do |rc|
+          bundler_certs.find do |bc|
+            File.basename(bc) == File.basename(rc) && FileUtils.compare_file(bc, rc)
+          end
+        end
+      end
+
+      def update!
+        return if up_to_date?
+
+        FileUtils.rm bundler_certs
+        FileUtils.cp rubygems_certs, bundler_cert_path
+      end
+
+      def connect_to(host)
+        http = Net::HTTP.new(host, 443)
+        http.use_ssl = true
+        http.verify_mode = OpenSSL::SSL::VERIFY_PEER
+        http.cert_store = store
+        http.head("/")
+      end
+
+    private
+
+      def certificates_in(path)
+        Dir[File.join(path, "**/*.pem")].sort
+      end
+
+      def store
+        @store ||= begin
+          store = OpenSSL::X509::Store.new
+          bundler_certs.each do |cert|
+            store.add_file cert
+          end
+          store
+        end
+      end
+    end
+  end
+end