2 files changed, 94 insertions, 1 deletions
diff --git a/lib/chef/win32/file/info.rb b/lib/chef/win32/file/info.rb
index 0f07428106..70d04df9b8 100644
--- a/lib/chef/win32/file/info.rb
+++ b/lib/chef/win32/file/info.rb
@@ -16,7 +16,7 @@
 # limitations under the License.
 #
 
-require 'chef/win32/file'
+require "chef/win32/file"
 
 class Chef
   module ReservedNames::Win32
diff --git a/lib/chef/win32/file/version_info.rb b/lib/chef/win32/file/version_info.rb
new file mode 100644
index 0000000000..bd7ed511a5
--- /dev/null
+++ b/lib/chef/win32/file/version_info.rb
@@ -0,0 +1,93 @@
+#
+# Author:: Matt Wrock (<matt@mattwrock.com>)
+# Copyright:: Copyright 2015 Chef Software, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+require "chef/win32/file"
+
+class Chef
+  module ReservedNames::Win32
+    class File
+
+      class VersionInfo
+
+        include Chef::ReservedNames::Win32::API::File
+
+        def initialize(file_name)
+          raise Errno::ENOENT, file_name unless ::File.exist?(file_name)
+          @file_version_info = retrieve_file_version_info(file_name)
+        end
+
+        # defining method for each predefined version resource string
+        # see https://msdn.microsoft.com/en-us/library/windows/desktop/ms647464(v=vs.85).aspx
+        [
+          :Comments,
+          :CompanyName,
+          :FileDescription,
+          :FileVersion,
+          :InternalName,
+          :LegalCopyright,
+          :LegalTrademarks,
+          :OriginalFilename,
+          :ProductName,
+          :ProductVersion,
+          :PrivateBuild,
+          :SpecialBuild,
+        ].each do |method|
+          define_method method do
+            begin
+              get_version_info_string(method.to_s)
+            rescue Chef::Exceptions::Win32APIError
+              return nil
+            end
+          end
+        end
+
+        private
+
+        def translation
+          @translation ||= begin
+            info_ptr = FFI::MemoryPointer.new(:pointer)
+            unless VerQueryValueW(@file_version_info, "\\VarFileInfo\\Translation".to_wstring, info_ptr, FFI::MemoryPointer.new(:int))
+              Chef::ReservedNames::Win32::Error.raise!
+            end
+
+            # there can potentially be multiple translations but most installers just have one
+            # we use the first because we use this for the version strings which are language
+            # agnostic. If/when we need other fields, we should we should add logic to find
+            # the "best" translation
+            trans = Translation.new(info_ptr.read_pointer)
+            to_hex(trans[:w_lang]) + to_hex(trans[:w_code_page])
+          end
+        end
+
+        def to_hex(integer)
+          integer.to_s(16).rjust(4,"0")
+        end
+
+        def get_version_info_string(string_key)
+          info_ptr = FFI::MemoryPointer.new(:pointer)
+          size_ptr = FFI::MemoryPointer.new(:int)
+          unless VerQueryValueW(@file_version_info, "\\StringFileInfo\\#{translation}\\#{string_key}".to_wstring, info_ptr, size_ptr)
+            Chef::ReservedNames::Win32::Error.raise!
+          end
+
+          info_ptr.read_pointer.read_wstring(size_ptr.read_uint)
+        end
+      end
+    end
+  end
+end