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Remove HEAD request from fetching link previews (#12028) 

It is not really necessary and we need to reduce requests
This commit is contained in:
Eugen Rochko 2019-10-01 04:54:10 +02:00 committed by GitHub
parent b258583d2b
commit 9ba40a6bfd
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2 changed files with 3 additions and 16 deletions
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6
app/services/fetch_link_card_service.rb
View File

@ -39,12 +39,6 @@ class FetchLinkCardService < BaseService
def process_url
@card ||= PreviewCard.new(url: @url)
failed = Request.new(:head, @url).perform do |res|
res.code != 405 && res.code != 501 && (res.code != 200 || res.mime_type != 'text/html')
end
return if failed
Request.new(:get, @url).perform do |res|
if res.code == 200 && res.mime_type == 'text/html'
@html = res.body_with_limit

13
spec/services/fetch_link_card_service_spec.rb
View File

@ -4,20 +4,13 @@ RSpec.describe FetchLinkCardService, type: :service do
subject { FetchLinkCardService.new }
before do
stub_request(:head, 'http://example.xn--fiqs8s/').to_return(status: 200, headers: { 'Content-Type' => 'text/html' })
stub_request(:get, 'http://example.xn--fiqs8s/').to_return(request_fixture('idn.txt'))
stub_request(:head, 'http://example.com/sjis').to_return(status: 200, headers: { 'Content-Type' => 'text/html' })
stub_request(:get, 'http://example.com/sjis').to_return(request_fixture('sjis.txt'))
stub_request(:head, 'http://example.com/sjis_with_wrong_charset').to_return(status: 200, headers: { 'Content-Type' => 'text/html' })
stub_request(:get, 'http://example.com/sjis_with_wrong_charset').to_return(request_fixture('sjis_with_wrong_charset.txt'))
stub_request(:head, 'http://example.com/koi8-r').to_return(status: 200, headers: { 'Content-Type' => 'text/html' })
stub_request(:get, 'http://example.com/koi8-r').to_return(request_fixture('koi8-r.txt'))
stub_request(:head, 'http://example.com/日本語').to_return(status: 200, headers: { 'Content-Type' => 'text/html' })
stub_request(:get, 'http://example.com/日本語').to_return(request_fixture('sjis.txt'))
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, 'https://github.com/qbi/WannaCry').to_return(status: 404)
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)
@ -90,11 +83,11 @@ RSpec.describe FetchLinkCardService, type: :service do
let(:status) { Fabricate(:status, account: Fabricate(:account, domain: 'example.com'), text: 'Habt ihr ein paar gute Links zu #<span class="tag"><a href="https://quitter.se/tag/wannacry" target="_blank" rel="tag noopener" title="https://quitter.se/tag/wannacry">Wannacry</a></span> herumfliegen? Ich will mal unter <br> <a href="https://github.com/qbi/WannaCry" target="_blank" rel="noopener" title="https://github.com/qbi/WannaCry">https://github.com/qbi/WannaCry</a> was sammeln. !<a href="http://sn.jonkman.ca/group/416/id" target="_blank" rel="noopener" title="http://sn.jonkman.ca/group/416/id">security</a>&nbsp;') }
it 'parses out URLs' do
expect(a_request(:head, 'https://github.com/qbi/WannaCry')).to have_been_made.at_least_once
expect(a_request(:get, 'https://github.com/qbi/WannaCry')).to have_been_made.at_least_once
end
it 'ignores URLs to hashtags' do
expect(a_request(:head, 'https://quitter.se/tag/wannacry')).to_not have_been_made
expect(a_request(:get, 'https://quitter.se/tag/wannacry')).to_not have_been_made
end
end
end