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require 'spec_helper'
describe Banzai::Filter::AutolinkFilter do
include FilterSpecHelper
let(:link) { 'http://about.gitlab.com/' }
let(:quotes) { ['"', "'"] }
it 'does nothing when :autolink is false' do
exp = act = link
expect(filter(act, autolink: false).to_html).to eq exp
end
it 'does nothing with non-link text' do
exp = act = 'This text contains no links to autolink'
expect(filter(act).to_html).to eq exp
end
context 'Various schemes' do
it 'autolinks http' do
doc = filter("See #{link}")
expect(doc.at_css('a').text).to eq link
expect(doc.at_css('a')['href']).to eq link
end
it 'autolinks https' do
link = 'https://google.com/'
doc = filter("See #{link}")
expect(doc.at_css('a').text).to eq link
expect(doc.at_css('a')['href']).to eq link
end
it 'autolinks ftp' do
link = 'ftp://ftp.us.debian.org/debian/'
doc = filter("See #{link}")
expect(doc.at_css('a').text).to eq link
expect(doc.at_css('a')['href']).to eq link
end
it 'autolinks short URLs' do
link = 'http://localhost:3000/'
doc = filter("See #{link}")
expect(doc.at_css('a').text).to eq link
expect(doc.at_css('a')['href']).to eq link
end
it 'autolinks multiple URLs' do
link1 = 'http://localhost:3000/'
link2 = 'http://google.com/'
doc = filter("See #{link1} and #{link2}")
found_links = doc.css('a')
expect(found_links.size).to eq(2)
expect(found_links[0].text).to eq(link1)
expect(found_links[0]['href']).to eq(link1)
expect(found_links[1].text).to eq(link2)
expect(found_links[1]['href']).to eq(link2)
end
it 'accepts link_attr options' do
doc = filter("See #{link}", link_attr: { class: 'custom' })
expect(doc.at_css('a')['class']).to eq 'custom'
end
it 'autolinks smb' do
link = 'smb:///Volumes/shared/foo.pdf'
doc = filter("See #{link}")
expect(doc.at_css('a').text).to eq link
expect(doc.at_css('a')['href']).to eq link
end
it 'autolinks multiple occurences of smb' do
link1 = 'smb:///Volumes/shared/foo.pdf'
link2 = 'smb:///Volumes/shared/bar.pdf'
doc = filter("See #{link1} and #{link2}")
found_links = doc.css('a')
expect(found_links.size).to eq(2)
expect(found_links[0].text).to eq(link1)
expect(found_links[0]['href']).to eq(link1)
expect(found_links[1].text).to eq(link2)
expect(found_links[1]['href']).to eq(link2)
end
it 'autolinks irc' do
link = 'irc://irc.freenode.net/git'
doc = filter("See #{link}")
expect(doc.at_css('a').text).to eq link
expect(doc.at_css('a')['href']).to eq link
end
it 'autolinks rdar' do
link = 'rdar://localhost.com/blah'
doc = filter("See #{link}")
expect(doc.at_css('a').text).to eq link
expect(doc.at_css('a')['href']).to eq link
end
it 'does not autolink javascript' do
link = 'javascript://alert(document.cookie);'
doc = filter("See #{link}")
expect(doc.at_css('a')).to be_nil
end
it 'does not autolink bad URLs' do
link = 'foo://23423:::asdf'
doc = filter("See #{link}")
expect(doc.to_s).to eq("See #{link}")
end
it 'does not include trailing punctuation' do
doc = filter("See #{link}.")
expect(doc.at_css('a').text).to eq link
doc = filter("See #{link}, ok?")
expect(doc.at_css('a').text).to eq link
doc = filter("See #{link}...")
expect(doc.at_css('a').text).to eq link
end
it 'includes trailing punctuation when part of a balanced pair' do
described_class::PUNCTUATION_PAIRS.each do |close, open|
next if open.in?(quotes)
balanced_link = "#{link}#{open}abc#{close}"
balanced_actual = filter("See #{balanced_link}...")
unbalanced_link = "#{link}#{close}"
unbalanced_actual = filter("See #{unbalanced_link}...")
expect(balanced_actual.at_css('a').text).to eq(balanced_link)
expect(unescape(balanced_actual.to_html)).to eq(Rinku.auto_link("See #{balanced_link}..."))
expect(unbalanced_actual.at_css('a').text).to eq(link)
expect(unescape(unbalanced_actual.to_html)).to eq(Rinku.auto_link("See #{unbalanced_link}..."))
end
end
it 'removes trailing quotes' do
quotes.each do |quote|
balanced_link = "#{link}#{quote}abc#{quote}"
balanced_actual = filter("See #{balanced_link}...")
unbalanced_link = "#{link}#{quote}"
unbalanced_actual = filter("See #{unbalanced_link}...")
expect(balanced_actual.at_css('a').text).to eq(balanced_link[0...-1])
expect(unescape(balanced_actual.to_html)).to eq(Rinku.auto_link("See #{balanced_link}..."))
expect(unbalanced_actual.at_css('a').text).to eq(link)
expect(unescape(unbalanced_actual.to_html)).to eq(Rinku.auto_link("See #{unbalanced_link}..."))
end
end
it 'removes one closing punctuation mark when the punctuation in the link is unbalanced' do
complicated_link = "(#{link}(a'b[c'd]))'"
expected_complicated_link = %Q{(<a href="#{link}(a'b[c'd]))">#{link}(a'b[c'd]))</a>'}
actual = unescape(filter(complicated_link).to_html)
expect(actual).to eq(Rinku.auto_link(complicated_link))
expect(actual).to eq(expected_complicated_link)
end
it 'does not include trailing HTML entities' do
doc = filter("See <<<#{link}>>>")
expect(doc.at_css('a')['href']).to eq link
expect(doc.text).to eq "See <<<#{link}>>>"
end
it 'accepts link_attr options' do
doc = filter("See #{link}", link_attr: { class: 'custom' })
expect(doc.at_css('a')['class']).to eq 'custom'
end
described_class::IGNORE_PARENTS.each do |elem|
it "ignores valid links contained inside '#{elem}' element" do
exp = act = "<#{elem}>See #{link}</#{elem}>"
expect(filter(act).to_html).to eq exp
end
end
end
context 'when the link is inside a tag' do
%w[http rdar].each do |protocol|
it "renders text after the link correctly for #{protocol}" do
doc = filter(ERB::Util.html_escape_once("<#{protocol}://link><another>"))
expect(doc.children.last.text).to include('<another>')
end
end
end
# Rinku does not escape these characters in HTML attributes, but content_tag
# does. We don't care about that difference for these specs, though.
def unescape(html)
%w([ ] { }).each do |cgi_escape|
html.sub!(CGI.escape(cgi_escape), cgi_escape)
end
quotes.each do |html_escape|
html.sub!(CGI.escape_html(html_escape), html_escape)
html.sub!(CGI.escape(html_escape), CGI.escape_html(html_escape))
end
html
end
end
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