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-rw-r--r--activesupport/lib/active_support/xml_mini/jdom.rb6
1 files changed, 6 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/xml_mini/jdom.rb b/activesupport/lib/active_support/xml_mini/jdom.rb
index 4551dd2f2d..27c64c4dca 100644
--- a/activesupport/lib/active_support/xml_mini/jdom.rb
+++ b/activesupport/lib/active_support/xml_mini/jdom.rb
@@ -37,6 +37,12 @@ module ActiveSupport
{}
else
@dbf = DocumentBuilderFactory.new_instance
+ # secure processing of java xml
+ # http://www.ibm.com/developerworks/xml/library/x-tipcfsx/index.html
+ @dbf.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false)
+ @dbf.setFeature("http://xml.org/sax/features/external-general-entities", false)
+ @dbf.setFeature("http://xml.org/sax/features/external-parameter-entities", false)
+ @dbf.setFeature(javax.xml.XMLConstants::FEATURE_SECURE_PROCESSING, true)
xml_string_reader = StringReader.new(data)
xml_input_source = InputSource.new(xml_string_reader)
doc = @dbf.new_document_builder.parse(xml_input_source)