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Ignore low-confidence CharlockHolmes guesses when parsing link cards (#9510)

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* Add failing test for windows-1251 link cards

* Ignore low-confidence CharlockHolmes guesses

Fixes #9466

* Fix no method error when charlock holmes cannot detect charset
This commit is contained in:
ThibG
2018-12-17 19:19:45 +01:00
committed by Eugen Rochko
parent 4ede51743e
commit e709b8da0d
3 changed files with 30 additions and 1 deletions
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17
spec/fixtures/requests/windows-1251.txt vendored Normal file
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@ -0,0 +1,17 @@
HTTP/1.1 200 OK
server: nginx
date: Wed, 12 Dec 2018 13:14:03 GMT
content-type: text/html
content-length: 190
accept-ranges: bytes
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1251" />
<title><3E><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD></title>
</head>
<body>
<p><3E><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD></p>
</body>
</html>

11
spec/services/fetch_link_card_service_spec.rb
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@ -17,6 +17,8 @@ RSpec.describe FetchLinkCardService, type: :service do
stub_request(:head, 'https://github.com/qbi/WannaCry').to_return(status: 404)
stub_request(:head, 'http://example.com/test-').to_return(status: 200, headers: { 'Content-Type' => 'text/html' })
stub_request(:get, 'http://example.com/test-').to_return(request_fixture('idn.txt'))
stub_request(:head, 'http://example.com/windows-1251').to_return(status: 200, headers: { 'Content-Type' => 'text/html' })
stub_request(:get, 'http://example.com/windows-1251').to_return(request_fixture('windows-1251.txt'))
subject.call(status)
end
@ -57,6 +59,15 @@ RSpec.describe FetchLinkCardService, type: :service do
end
end
context do
let(:status) { Fabricate(:status, text: 'Check out http://example.com/windows-1251') }
it 'works with windows-1251' do
expect(a_request(:get, 'http://example.com/windows-1251')).to have_been_made.at_least_once
expect(status.preview_cards.first.title).to eq('сэмпл текст')
end
end
context do
let(:status) { Fabricate(:status, text: 'テストhttp://example.com/日本語') }