758325923f
The html5lib sanitizer does not necessarily produce well-formed output. Take some "bad" input, wrap it in a <nowiki> tag and -- bingo! -- you get ill-formed output. Fixed. (Though, probably, one should fix the html5lib sanitizer, instead.)
42 lines
1.3 KiB
Ruby
42 lines
1.3 KiB
Ruby
require 'chunks/chunk'
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require 'sanitize'
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require 'rexml/document'
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# This chunks allows certain parts of a wiki page to be hidden from the
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# rest of the rendering pipeline. It should be run at the beginning
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# of the pipeline in `wiki_content.rb`.
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#
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# An example use of this chunk is to markup double brackets or
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# auto URI links:
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# <nowiki>Here are [[double brackets]] and a URI: www.uri.org</nowiki>
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#
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# The contents of the chunks will not be processed by any other chunk
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# so the `www.uri.org` and the double brackets will appear verbatim.
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#
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# Author: Mark Reid <mark at threewordslong dot com>
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# Created: 8th June 2004
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class NoWiki < Chunk::Abstract
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include Sanitize
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NOWIKI_PATTERN = Regexp.new('<nowiki>(.*?)</nowiki>', Regexp::MULTILINE)
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def self.pattern() NOWIKI_PATTERN end
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attr_reader :plain_text
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def initialize(match_data, content)
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super
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begin
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sanitized = sanitize_xhtml(match_data[1])
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doc = REXML::Document.new("<div xmlns='http://www.w3.org/1999/xhtml'>#{sanitized}</div>")
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sanitized = doc.to_s.gsub(/\A<div xmlns='http:\/\/www.w3.org\/1999\/xhtml'>(.*)<\/div>\Z/m, '\1')
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rescue REXML::ParseException
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sanitized = %{<pre class='markdown-html-error' style='border: solid 3px red; background-color: pink;'>HTML parse error:
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#{sanitized.escapeHTML}</pre>}
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end
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@plain_text = @unmask_text = sanitized
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end
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end
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