diff options
Diffstat (limited to 'lib/rexml/document.rb')
| -rw-r--r-- | lib/rexml/document.rb | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/rexml/document.rb b/lib/rexml/document.rb index 42d70bb6da..97a73e94a0 100644 --- a/lib/rexml/document.rb +++ b/lib/rexml/document.rb @@ -32,6 +32,7 @@ module REXML # @param context if supplied, contains the context of the document; # this should be a Hash. def initialize( source = nil, context = {} ) + @entity_expansion_count = 0 super() @context = context return if source.nil? @@ -200,6 +201,27 @@ module REXML Parsers::StreamParser.new( source, listener ).parse end + @@entity_expansion_limit = 10_000 + + # Set the entity expansion limit. By defualt the limit is set to 10000. + def Document::entity_expansion_limit=( val ) + @@entity_expansion_limit = val + end + + # Get the entity expansion limit. By defualt the limit is set to 10000. + def Document::entity_expansion_limit + return @@entity_expansion_limit + end + + attr_reader :entity_expansion_count + + def record_entity_expansion + @entity_expansion_count += 1 + if @entity_expansion_count > @@entity_expansion_limit + raise "number of entity expansions exceeded, processing aborted." + end + end + private def build( source ) Parsers::TreeParser.new( source, self ).parse |