Bug: NoMethodError: private method `gsub' called for nil:NilClass

Ruby Apps Redcloth
1

Hi there.

I’m using RedCloth as part of a social network’s blog system.

I came across the following bug when an img tag with the src attribute
is inputted, and filter_html is set to true.

I have pasted the code sample below.

require ‘RubyGems’
=> true
require ‘RedCloth’
=> true
RedCloth.new(‘’,[:filter_html]).to_html
NoMethodError: private method gsub' called for nil:NilClass from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1118:in clean_html’
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1113:in each' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1113:in clean_html’
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1112:in each' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1112:in clean_html’
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1107:in gsub!' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:1107:in clean_html’
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
ruby/gems/1.8/gems/RedCloth-3.0.4/lib/RedCloth.rb:310:in `to_html’
from (irb):3

Thanks.

Douglas F Shearer
[email protected]

2

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3

I copied it into a Lighthouse ticket. Thanks for reporting the bug

http://jgarber.lighthouseapp.com/projects/13054-redcloth/tickets/200-nil-gsub-when-img-with-src-and-filter_html-is-on