Module: Dap::Filter::HTMLGhetto
- Included in:
- FilterHTMLIframes, FilterHTMLLinks
- Defined in:
- lib/dap/filter/http.rb
Overview
Dirty element extractor, works around memory issues with Nokogiri
Instance Method Summary collapse
Instance Method Details
#extract_elements(data) ⇒ Object
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 |
# File 'lib/dap/filter/http.rb', line 12 def extract_elements(data) @coder ||= HTMLEntities.new res = [] data. to_s. encode('UTF-8', invalid: :replace, undef: :replace, replace: ''). scan(/<([^<>]{1,4096})>/m).each do |e| e = e.first # Skip closing tags next if e[0,1] == "/" # Get the name vs attributes name, astr = e.split(/\s+/, 2).map{|x| x.to_s } astr ||= '' # Skip non-alpha elements next unless name =~ /^[a-zA-Z]/ # Convert newlines to spaces & strip trailing /> astr = astr.gsub(/\n/, ' ').sub(/\/$/, '') o = { name: name } begin Shellwords.shellwords(astr).each do |attr_str| aname, avalue = attr_str.split('=', 2).map{|x| x.to_s.strip } avalue = avalue.to_s.gsub(/^\"|"$/, '') o[aname.downcase] = @coder.decode(avalue) end rescue ::Interrupt raise $! rescue ::Exception # If shellwords couldn't parse it, split on space instead astr.to_s.split(/\s+/).each do |attr_str| aname, avalue = attr_str.split('=', 2).map{|x| x.to_s.strip } avalue = avalue.to_s.gsub(/^\"|"$/, '') o[aname.downcase] = @coder.decode(avalue) end end res << o end res end |