Fixes #22 PUT request relies on request.body.length which passenger socket class does not contain (all other variants seems to) there is now implemented fallback based on reflection request.body.length then request.body.size and if all else fails request.content_length (which isn't ideal)

init.rb

@@ -24,7 +24,7 @@ Redmine::Plugin.register :redmine_dmsf do
   name "DMSF"
   author "Vit Jonas / Daniel Munn"
   description "Document Management System Features"
-  version "1.4.4p1 stable"
+  version "1.4.4p2 stable"
   url "https://github.com/danmunn/redmine_dmsf"
   author_url "https://code.google.com/p/redmine-dmsf/"
   

lib/redmine_dmsf/webdav/base_resource.rb

@@ -23,7 +23,8 @@ module RedmineDmsf
       include ActionView::Helpers::NumberHelper
 
       def initialize(*args)
-        raise NotFound if Setting.plugin_redmine_dmsf["dmsf_webdav"].empty?
+        webdav_setting = Setting.plugin_redmine_dmsf["dmsf_webdav"]
+        raise NotFound if !webdav_setting.nil? && webdav_setting.empty?
         super(*args)
       end
 

lib/redmine_dmsf/webdav/dmsf_resource.rb

@@ -477,7 +477,6 @@ module RedmineDmsf
       #
       #
       def put(request, response)
- 
         raise BadRequest if (collection?)
 
         raise Forbidden unless User.current.admin? || User.current.allowed_to?(:file_manipulation, project)
@@ -511,7 +510,16 @@ module RedmineDmsf
         new_revision.comment = nil
         new_revision.increase_version(2, true)
         new_revision.mime_type = Redmine::MimeType.of(new_revision.name)
-        new_revision.size = request.body.length
+        # Phusion passenger does not have a method "length" in its model
+        # however includes a size method - so we instead use reflection
+        # to determine best approach to problem
+        if request.body.respond_to? 'length'
+          new_revision.size = request.body.length
+        elsif request.body.respond_to? 'size'
+          new_revision.size = request.body.size
+        else
+          new_revision.size = request.content_length #Bad Guess
+        end
         raise InternalServerError unless new_revision.valid? && f.save
         new_revision.disk_filename = new_revision.new_storage_filename