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Merge branch '57634-issue-when-viewing-a-document-with-footnotes-actionview-template-error-undefined-method-at_css-for-nil-nilclass' into 'master'

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Issue when viewing a document with footnotes

Closes #57634

See merge request gitlab-org/gitlab-ce!25199
This commit is contained in:
Robert Speicher 2019-02-13 21:37:12 +00:00
commit 69c19b392e
2 changed files with 18 additions and 7 deletions
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17
lib/banzai/filter/footnote_filter.rb
View file

@ -29,22 +29,31 @@ module Banzai
# Sanitization stripped off the section wrapper - add it back in # Sanitization stripped off the section wrapper - add it back in
first_footnote.parent.wrap('<section class="footnotes">') first_footnote.parent.wrap('<section class="footnotes">')
rand_suffix = "-#{random_number}" rand_suffix = "-#{random_number}"
modified_footnotes = {}
doc.css('sup > a[id]').each do |link_node| doc.css('sup > a[id]').each do |link_node|
ref_num = link_node[:id].delete_prefix(FOOTNOTE_LINK_ID_PREFIX) ref_num = link_node[:id].delete_prefix(FOOTNOTE_LINK_ID_PREFIX)
footnote_node = doc.at_css("li[id=#{fn_id(ref_num)}]") footnote_node = doc.at_css("li[id=#{fn_id(ref_num)}]")
backref_node = footnote_node.at_css("a[href=\"##{fnref_id(ref_num)}\"]")
if ref_num =~ INTEGER_PATTERN && footnote_node && backref_node if INTEGER_PATTERN.match?(ref_num) && (footnote_node || modified_footnotes[ref_num])
link_node[:href] += rand_suffix link_node[:href] += rand_suffix
link_node[:id] += rand_suffix link_node[:id] += rand_suffix
footnote_node[:id] += rand_suffix
backref_node[:href] += rand_suffix
# Sanitization stripped off class - add it back in # Sanitization stripped off class - add it back in
link_node.parent.append_class('footnote-ref') link_node.parent.append_class('footnote-ref')
unless modified_footnotes[ref_num]
footnote_node[:id] += rand_suffix
backref_node = footnote_node.at_css("a[href=\"##{fnref_id(ref_num)}\"]")
if backref_node
backref_node[:href] += rand_suffix
backref_node.append_class('footnote-backref') backref_node.append_class('footnote-backref')
end end
modified_footnotes[ref_num] = true
end
end
end end
doc doc

2
spec/lib/banzai/filter/footnote_filter_spec.rb
View file

@ -11,6 +11,7 @@ describe Banzai::Filter::FootnoteFilter do
let(:footnote) do let(:footnote) do
<<~EOF <<~EOF
<p>first<sup><a href="#fn1" id="fnref1">1</a></sup> and second<sup><a href="#fn2" id="fnref2">2</a></sup></p> <p>first<sup><a href="#fn1" id="fnref1">1</a></sup> and second<sup><a href="#fn2" id="fnref2">2</a></sup></p>
<p>same reference<sup><a href="#fn1" id="fnref1">1</a></sup></p>
<ol> <ol>
<li id="fn1"> <li id="fn1">
<p>one <a href="#fnref1">↩</a></p> <p>one <a href="#fnref1">↩</a></p>
@ -25,6 +26,7 @@ describe Banzai::Filter::FootnoteFilter do
let(:filtered_footnote) do let(:filtered_footnote) do
<<~EOF <<~EOF
<p>first<sup class="footnote-ref"><a href="#fn1-#{identifier}" id="fnref1-#{identifier}">1</a></sup> and second<sup class="footnote-ref"><a href="#fn2-#{identifier}" id="fnref2-#{identifier}">2</a></sup></p> <p>first<sup class="footnote-ref"><a href="#fn1-#{identifier}" id="fnref1-#{identifier}">1</a></sup> and second<sup class="footnote-ref"><a href="#fn2-#{identifier}" id="fnref2-#{identifier}">2</a></sup></p>
<p>same reference<sup class="footnote-ref"><a href="#fn1-#{identifier}" id="fnref1-#{identifier}">1</a></sup></p>
<section class="footnotes"><ol> <section class="footnotes"><ol>
<li id="fn1-#{identifier}"> <li id="fn1-#{identifier}">
<p>one <a href="#fnref1-#{identifier}" class="footnote-backref">↩</a></p> <p>one <a href="#fnref1-#{identifier}" class="footnote-backref">↩</a></p>