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FIX: Select best link from Atom feed (#15663) 

Some Atom feeds can contain more than one link and it used to return
only the first link.
This commit is contained in:
Bianca Nenciu 2022-01-21 17:54:18 +02:00 committed by GitHub
parent 70af45055a
commit a0c040060a
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3 changed files with 65 additions and 0 deletions
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5
lib/feed_item_accessor.rb
View File

@ -12,6 +12,11 @@ class FeedItemAccessor
end
def link
if rss_item.respond_to?(:links)
link = rss_item.links&.find { |l| l.rel == "alternate" && l.type == "text/html" }
return link.href if link.respond_to?(:href)
end
try_attribute_or_self(element(:link), :href)
end

12
spec/components/feed_item_accessor_spec.rb
View File

@ -32,4 +32,16 @@ describe FeedItemAccessor do
it { expect(item_accessor.link).to eq(rss_feed_item.link) }
end
end
context 'with multiple links' do
let(:rss_feed) { RSS::Parser.parse(file_from_fixtures('multiple-links.atom', 'feed'), false) }
let(:rss_feed_item) { rss_feed.items.first }
let(:item_accessor) { FeedItemAccessor.new(rss_feed_item) }
describe '#link' do
it 'gets the web page link' do
expect(item_accessor.link).to eq('http://workspaceupdates.googleblog.com/2022/01/improved-editing-experience-in-google.html')
end
end
end
end

48
spec/fixtures/feed/multiple-links.atom vendored Normal file
View File

@ -0,0 +1,48 @@
<?xml version="1.0" encoding="UTF-8"?>
<feed xmlns="http://www.w3.org/2005/Atom"
xmlns:openSearch="http://a9.com/-/spec/opensearchrss/1.0/"
xmlns:blogger="http://schemas.google.com/blogger/2008"
xmlns:georss="http://www.georss.org/georss"
xmlns:gd="http://schemas.google.com/g/2005"
xmlns:thr="http://purl.org/syndication/thread/1.0">
<id>tag:blogger.com,1999:blog-5245696872621940063</id>
<updated>2022-01-20T08:59:51.049-08:00</updated>
<category term="Google Chat" />
<title type="text">Google Workspace Updates</title>
<subtitle type="html">This official feed from the Google Workspace team provides essential information about new features and improvements for Google Workspace customers.</subtitle>
<link rel="alternate" type="text/html" href="http://workspaceupdates.googleblog.com/" />
<link rel="next" type="application/atom+xml" href="http://www.blogger.com/feeds/5245696872621940063/posts/default?start-index=26&amp;max-results=25&amp;redirect=false" />
<author>
<name>ewood</name>
<uri>http://www.blogger.com/profile/12341551220176883769</uri>
<email>noreply@blogger.com</email>
<gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="16" height="16" src="https://img1.blogblog.com/img/b16-rounded.gif" />
</author>
<generator version="7.00" uri="http://www.blogger.com">Blogger</generator>
<openSearch:totalResults>2675</openSearch:totalResults>
<openSearch:startIndex>1</openSearch:startIndex>
<openSearch:itemsPerPage>25</openSearch:itemsPerPage>
<atom10:link xmlns:atom10="http://www.w3.org/2005/Atom" rel="self" type="application/atom+xml" href="http://feeds.feedburner.com/GoogleAppsUpdates" />
<feedburner:info xmlns:feedburner="http://rssnamespace.org/feedburner/ext/1.0" uri="googleappsupdates" />
<atom10:link xmlns:atom10="http://www.w3.org/2005/Atom" rel="hub" href="http://pubsubhubbub.appspot.com/" />
<entry>
<id>tag:blogger.com,1999:blog-5245696872621940063.post-5639928758147944950</id>
<published>2022-01-20T08:58:00.001-08:00</published>
<updated>2022-01-20T08:59:19.910-08:00</updated>
<category scheme="http://www.blogger.com/atom/ns#" term="Google Chat" />
<title type="text">Improved editing experience in Google Chat on the web</title>
<content type="html">You now can add rich formatting to Chat messages, such as bold, italics, or underlines.</content>
<link rel="replies" type="application/atom+xml" href="http://workspaceupdates.googleblog.com/feeds/5639928758147944950/comments/default" title="Post Comments" />
<link rel="replies" type="text/html" href="http://workspaceupdates.googleblog.com/2022/01/improved-editing-experience-in-google.html#comment-form" title="0 Comments" />
<link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/5245696872621940063/posts/default/5639928758147944950" />
<link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/5245696872621940063/posts/default/5639928758147944950" />
<link rel="alternate" type="text/html" href="http://workspaceupdates.googleblog.com/2022/01/improved-editing-experience-in-google.html" title="Improved editing experience in Google Chat on the web" />
<author>
<name>Unknown</name>
<email>noreply@blogger.com</email>
<gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="16" height="16" src="https://img1.blogblog.com/img/b16-rounded.gif" />
</author>
<media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://lh3.googleusercontent.com/eUfnXfExnqrkz01rOU9GcN4n3VTq4w4NnlVUKQgZHdpNccKaYYAu7RFSbNXTZOybZ5cSq5aGrr5bWI4ildN0CNl4_K-mhzpW5Zy2iziZufOaxJDWQRf9jmzISn95gsH2h67RnHDUnw=s72-w640-h95-c" height="72" width="72" />
<thr:total>0</thr:total>
</entry>
</feed>