mirror of
https://github.com/discourse/discourse.git
synced 2024-11-29 21:25:57 +08:00
fddd6fd5e0
```
WARNING: Using `expect { }.not_to raise_error(SpecificErrorClass)` risks false positives, since literally any other error would cause the expectation to pass, including those raised by Ruby (e.g. `NoMethodError`, `NameError` and `ArgumentError`), meaning the code you are intending to test may not even get reached. Instead consider using `expect { }.not_to raise_error` or `expect { }.to raise_error(DifferentSpecificErrorClass)`. This message can be suppressed by setting: `RSpec::Expectations.configuration.on_potential_false_positives = :nothing`. Called from /var/www/discourse/spec/lib/retrieve_title_spec.rb:155:in `block (3 levels) in <main>'.
```
179 lines
6.2 KiB
Ruby
179 lines
6.2 KiB
Ruby
# frozen_string_literal: true
|
||
|
||
describe RetrieveTitle do
|
||
|
||
context "extract_title" do
|
||
|
||
it "will extract the value from the title tag" do
|
||
title = RetrieveTitle.extract_title(
|
||
"<html><title>My Cool Title</title></html>"
|
||
)
|
||
|
||
expect(title).to eq("My Cool Title")
|
||
end
|
||
|
||
it "will strip whitespace" do
|
||
title = RetrieveTitle.extract_title(
|
||
"<html><title> Another Title\n\n </title></html>"
|
||
)
|
||
|
||
expect(title).to eq("Another Title")
|
||
end
|
||
|
||
it "will pick og:title if title is missing" do
|
||
title = RetrieveTitle.extract_title(<<~HTML
|
||
<html>
|
||
<meta property="og:title" content="Good Title"
|
||
</html>
|
||
HTML
|
||
)
|
||
|
||
expect(title).to eq("Good Title")
|
||
end
|
||
|
||
it "will prefer the title over the opengraph tag" do
|
||
title = RetrieveTitle.extract_title(<<~HTML
|
||
<html>
|
||
<title>Good Title</title>
|
||
<meta property="og:title" content="Bad Title"
|
||
</html>
|
||
HTML
|
||
)
|
||
|
||
expect(title).to eq("Good Title")
|
||
end
|
||
|
||
it "will parse a YouTube url from javascript" do
|
||
title = RetrieveTitle.extract_title(<<~HTML
|
||
<html>
|
||
<title>YouTube</title>
|
||
<script>document.title = "Video Title";</script>
|
||
</html>
|
||
HTML
|
||
)
|
||
expect(title).to eq("Video Title")
|
||
end
|
||
end
|
||
|
||
context "crawl" do
|
||
it "can properly extract a title from a url" do
|
||
stub_request(:get, "https://brelksdjflaskfj.com/amazing")
|
||
.to_return(status: 200, body: "<html><title>very amazing</title>")
|
||
|
||
# we still resolve the IP address for every host
|
||
IPSocket.stubs(:getaddress).returns('100.2.3.4')
|
||
|
||
expect(RetrieveTitle.crawl("https://brelksdjflaskfj.com/amazing")).to eq("very amazing")
|
||
end
|
||
|
||
it "detects and uses encoding from Content-Type header" do
|
||
stub_request(:get, "https://brelksdjflaskfj.com/amazing")
|
||
.to_return(
|
||
status: 200,
|
||
body: "<html><title>fancy apostrophes ’’’</title>".dup.force_encoding('ASCII-8BIT'),
|
||
headers: { 'Content-Type' => 'text/html; charset="utf-8"' }
|
||
)
|
||
|
||
IPSocket.stubs(:getaddress).returns('100.2.3.4')
|
||
expect(RetrieveTitle.crawl("https://brelksdjflaskfj.com/amazing")).to eq("fancy apostrophes ’’’")
|
||
|
||
stub_request(:get, "https://brelksdjflaskfj.com/amazing")
|
||
.to_return(
|
||
status: 200,
|
||
body: "<html><title>japanese こんにちは website</title>".encode('EUC-JP').force_encoding('ASCII-8BIT'),
|
||
headers: { 'Content-Type' => 'text/html;charset=euc-jp' }
|
||
)
|
||
|
||
IPSocket.stubs(:getaddress).returns('100.2.3.4')
|
||
expect(RetrieveTitle.crawl("https://brelksdjflaskfj.com/amazing")).to eq("japanese こんにちは website")
|
||
end
|
||
|
||
it "can follow redirect" do
|
||
stub_request(:get, "http://foobar.com/amazing").
|
||
to_return(status: 301, body: "", headers: { "location" => "https://wikipedia.com/amazing" })
|
||
|
||
stub_request(:get, "https://wikipedia.com/amazing").
|
||
to_return(status: 200, body: "<html><title>very amazing</title>", headers: {})
|
||
|
||
IPSocket.stubs(:getaddress).returns('100.2.3.4')
|
||
expect(RetrieveTitle.crawl("http://foobar.com/amazing")).to eq("very amazing")
|
||
end
|
||
|
||
it "returns empty title if redirect uri is in blacklist" do
|
||
SiteSetting.blocked_onebox_domains = "wikipedia.com"
|
||
|
||
stub_request(:get, "http://foobar.com/amazing")
|
||
.to_return(status: 301, body: "", headers: { "location" => "https://wikipedia.com/amazing" })
|
||
|
||
stub_request(:get, "https://wikipedia.com/amazing")
|
||
.to_return(status: 200, body: "<html><title>very amazing</title>", headers: {})
|
||
|
||
expect(RetrieveTitle.crawl("http://foobar.com/amazing")).to eq(nil)
|
||
end
|
||
|
||
it "doesn't return title if a blocked domain is encountered anywhere in the redirect chain" do
|
||
SiteSetting.blocked_onebox_domains = "wikipedia.com"
|
||
|
||
stub_request(:get, "http://foobar.com/amazing")
|
||
.to_return(status: 301, body: "", headers: { "location" => "https://wikipedia.com/amazing" })
|
||
|
||
stub_request(:get, "https://wikipedia.com/amazing")
|
||
.to_return(status: 301, body: "", headers: { "location" => "https://cat.com/meow" })
|
||
|
||
stub_request(:get, "https://cat.com/meow")
|
||
.to_return(status: 200, body: "<html><title>very amazing</title>", headers: {})
|
||
|
||
expect(RetrieveTitle.crawl("http://foobar.com/amazing")).to be_blank
|
||
end
|
||
|
||
it "doesn't return title if the Discourse-No-Onebox header == 1" do
|
||
stub_request(:get, "https://cat.com/meow/no-onebox")
|
||
.to_return(
|
||
status: 200,
|
||
body: "<html><title>discourse stay away</title>",
|
||
headers: { "Discourse-No-Onebox" => "1" }
|
||
)
|
||
|
||
expect(RetrieveTitle.crawl("https://cat.com/meow/no-onebox")).to be_blank
|
||
end
|
||
|
||
it "doesn't return a title if response is unsuccessful" do
|
||
stub_request(:get, "https://example.com").to_return(status: 404, body: "")
|
||
|
||
expect(RetrieveTitle.crawl("https://example.com")).to eq(nil)
|
||
end
|
||
|
||
it "it raises errors other than Net::ReadTimeout, e.g. NoMethodError" do
|
||
stub_request(:get, "https://example.com").to_raise(NoMethodError)
|
||
|
||
expect { RetrieveTitle.crawl("https://example.com") }.to raise_error(NoMethodError)
|
||
end
|
||
|
||
it "it ignores Net::ReadTimeout errors" do
|
||
stub_request(:get, "https://example.com").to_raise(Net::ReadTimeout)
|
||
|
||
expect { RetrieveTitle.crawl("https://example.com") }.not_to raise_error
|
||
end
|
||
end
|
||
|
||
context 'fetch_title' do
|
||
it "does not parse broken title tag" do
|
||
# webmock does not do chunks
|
||
stub_request(:get, "https://en.wikipedia.org/wiki/Internet").
|
||
to_return(status: 200, body: "<html><head><title>Internet - Wikipedia</ti" , headers: {})
|
||
|
||
title = RetrieveTitle.fetch_title("https://en.wikipedia.org/wiki/Internet")
|
||
expect(title).to eq(nil)
|
||
end
|
||
|
||
it "can parse correct title tag" do
|
||
# webmock does not do chunks
|
||
stub_request(:get, "https://en.wikipedia.org/wiki/Internet").
|
||
to_return(status: 200, body: "<html><head><title>Internet - Wikipedia</title>" , headers: {})
|
||
|
||
title = RetrieveTitle.fetch_title("https://en.wikipedia.org/wiki/Internet")
|
||
expect(title).to eq("Internet - Wikipedia")
|
||
end
|
||
end
|
||
end
|