# frozen_string_literal: true
require "rails_helper"
RSpec.describe Onebox::Helpers do
describe '.blank?' do
it { expect(described_class.blank?("")).to be(true) }
it { expect(described_class.blank?(" ")).to be(true) }
it { expect(described_class.blank?("test")).to be(false) }
it { expect(described_class.blank?(["test", "testing"])).to be(false) }
it { expect(described_class.blank?([])).to be(true) }
it { expect(described_class.blank?({})).to be(true) }
it { expect(described_class.blank?(nil)).to be(true) }
it { expect(described_class.blank?(true)).to be(false) }
it { expect(described_class.blank?(false)).to be(true) }
it { expect(described_class.blank?(a: 'test')).to be(false) }
end
describe ".truncate" do
let(:test_string) { "Chops off on spaces" }
it { expect(described_class.truncate(test_string)).to eq(test_string) }
it { expect(described_class.truncate(test_string, 5)).to eq("Chops...") }
it { expect(described_class.truncate(test_string, 7)).to eq("Chops...") }
it { expect(described_class.truncate(test_string, 9)).to eq("Chops off...") }
it { expect(described_class.truncate(test_string, 10)).to eq("Chops off...") }
it { expect(described_class.truncate(test_string, 100)).to eq("Chops off on spaces") }
it { expect(described_class.truncate(" #{test_string} ", 6)).to eq(" Chops...") }
end
describe "fetch_response" do
around do |example|
previous_options = Onebox.options.to_h
Onebox.options = { max_download_kb: 1 }
stub_request(:get, "http://example.com/large-file").to_return(status: 200, body: onebox_response("slides"))
example.run
Onebox.options = previous_options
end
it "raises an exception when responses are larger than our limit" do
expect {
described_class.fetch_response('http://example.com/large-file')
}.to raise_error(Onebox::Helpers::DownloadTooLarge)
end
end
describe "fetch_html_doc" do
it "can handle unicode URIs" do
uri = 'https://www.reddit.com/r/UFOs/comments/k18ukd/๐จ๐๐ข_๐ฑ๐ฟ๐ผ๐ฝ๐_๐ฐ๐ผ๐_๐๐ต๐ฟ๐ผ๐๐ด๐ต_๐ฏ๐ฎ๐ฟ๐ป_๐ฟ๐ผ๐ผ๐ณ/'
stub_request(:get, uri).to_return(status: 200, body: "
success
")
expect(described_class.fetch_html_doc(uri).to_s).to match("success")
end
context "canonical link" do
it "follows canonical link" do
uri = 'https://www.example.com'
stub_request(:get, uri).to_return(status: 200, body: "
")
stub_request(:head, 'http://foobar.com').to_return(status: 200, body: "")
expect(described_class.fetch_html_doc(uri).to_s).to match("success")
end
it "does not follow canonical link pointing at localhost" do
uri = 'https://www.example.com'
stub_request(:get, uri).to_return(status: 200, body: "
success
")
expect(described_class.fetch_html_doc(uri).to_s).to match("success")
end
end
end
describe "redirects" do
describe "redirect limit" do
before do
codes = [301, 302, 303, 307, 308]
(1..6).each do |i|
code = codes.pop || 302
stub_request(:get, "https://httpbin.org/redirect/#{i}")
.to_return(status: code, body: "", headers: { location: "https://httpbin.org/redirect/#{i - 1}" })
end
stub_request(:get, "https://httpbin.org/redirect/0").to_return(status: 200, body: "
success
")
end
it "can follow redirects" do
expect(described_class.fetch_response("https://httpbin.org/redirect/2")).to match("success")
end
it "errors on long redirect chains" do
expect {
described_class.fetch_response("https://httpbin.org/redirect/6")
}.to raise_error(Net::HTTPError, /redirect too deep/)
end
end
describe "cookie handling" do
it "naively forwards cookies to the next request" do
stub_request(:get, "https://httpbin.org/cookies/set/a/b").to_return(
status: 302,
headers: {
location: "/cookies",
"set-cookie": "a=b; Path=/",
}
)
stub_request(:get, "https://httpbin.org/cookies")
.with(headers: { cookie: "a=b; Path=/" })
.to_return(status: 200, body: "success, cookie readback not implemented")
expect(described_class.fetch_response('https://httpbin.org/cookies/set/a/b')).to match("success")
end
it "does not send cookies to the wrong domain" do
skip("unimplemented")
stub_request(:get, "https://httpbin.org/cookies/set/a/b").to_return(
status: 302,
headers: {
location: "https://evil.com/show_cookies",
"set-cookie": "a=b; Path=/",
}
)
stub_request(:get, "https://evil.com/show_cookies")
.with(headers: { cookie: nil })
.to_return(status: 200, body: "success, cookie readback not implemented")
described_class.fetch_response('https://httpbin.org/cookies/set/a/b')
end
end
end
describe "user_agent" do
context "default" do
it "has the default Discourse user agent" do
stub_request(:get, "http://example.com/some-resource")
.with(headers: { "user-agent" => /Discourse Forum Onebox/ })
.to_return(status: 200, body: "test")
described_class.fetch_response('http://example.com/some-resource')
end
end
context "Custom option" do
around do |example|
previous_options = Onebox.options.to_h
Onebox.options = { user_agent: "EvilTroutBot v0.1" }
example.run
Onebox.options = previous_options
end
it "has the custom user agent" do
stub_request(:get, "http://example.com/some-resource")
.with(headers: { "user-agent" => "EvilTroutBot v0.1" })
.to_return(status: 200, body: "test")
described_class.fetch_response('http://example.com/some-resource')
end
end
end
describe '.normalize_url_for_output' do
it { expect(described_class.normalize_url_for_output('http://example.com/fo o')).to eq("http://example.com/fo%20o") }
it { expect(described_class.normalize_url_for_output("http://example.com/fo'o")).to eq("http://example.com/fo'o") }
it { expect(described_class.normalize_url_for_output('http://example.com/fo"o')).to eq("http://example.com/fo"o") }
it { expect(described_class.normalize_url_for_output('http://example.com/fo')).to eq("http://example.com/foo") }
it { expect(described_class.normalize_url_for_output('http://example.com/dโeฬcran-aฬ')).to eq("http://example.com/dโeฬcran-aฬ") }
it { expect(described_class.normalize_url_for_output('//example.com/hello')).to eq("//example.com/hello") }
it { expect(described_class.normalize_url_for_output('example.com/hello')).to eq("") }
it { expect(described_class.normalize_url_for_output('linear-gradient(310.77deg, #29AA9F 0%, #098EA6 100%)')).to eq("") }
end
describe '.uri_encode' do
it { expect(described_class.uri_encode('http://example.com/f"o&o?[b"ar]')).to eq("http://example.com/f%22o&o?%5Bb%22ar%5D") }
it { expect(described_class.uri_encode("http://example.com/f.o~o;?")).to eq("http://example.com/f.o~o;?%3Cba%27r%3E") }
it { expect(described_class.uri_encode("http://example.com/(foo)?b+a+r")).to eq("http://example.com/%3Cpa'th%3E(foo)?b%2Ba%2Br") }
it { expect(described_class.uri_encode("http://example.com/p,a:t!h-f$o@o*?b!a#r@")).to eq("http://example.com/p,a:t!h-f$o@o*?b%21a#r%40") }
it { expect(described_class.uri_encode("http://example.com/path&foo?b'a&qu(er)y=1")).to eq("http://example.com/path&foo?b%27a%3Cr%3E&qu%28er%29y=1") }
it { expect(described_class.uri_encode("http://example.com/index&")).to eq("http://example.com/index&%3Cscript%3Ealert('XSS');%3C/script%3E") }
it { expect(described_class.uri_encode("http://example.com/index.html?message=")).to eq("http://example.com/index.html?message=%3Cscript%3Ealert%28%27XSS%27%29%3B%3C%2Fscript%3E") }
it { expect(described_class.uri_encode("http://example.com/index.php/")).to eq("http://example.com/index.php/%3CIFRAME%20SRC=source.com%20onload='alert(document.cookie)'%3E%3C/IFRAME%3E") }
it { expect(described_class.uri_encode("https://en.wiktionary.org/wiki/greengrocer%27s_apostrophe")).to eq("https://en.wiktionary.org/wiki/greengrocer%27s_apostrophe") }
it { expect(described_class.uri_encode("https://example.com/random%2Bpath?q=random%2Bquery")).to eq("https://example.com/random%2Bpath?q=random%2Bquery") }
it { expect(described_class.uri_encode("https://glitch.com/edit/#!/equinox-watch")).to eq("https://glitch.com/edit/#!/equinox-watch") }
it { expect(described_class.uri_encode("https://gitpod.io/#https://github.com/eclipse-theia/theia")).to eq("https://gitpod.io/#https://github.com/eclipse-theia/theia") }
end
end