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whippy-edition/spec/services/verify_link_service_spec.rb
2023-05-04 05:49:08 +02:00

179 lines
5.3 KiB
Ruby

# frozen_string_literal: true
require 'rails_helper'
RSpec.describe VerifyLinkService, type: :service do
subject { described_class.new }
context 'when given a local account' do
let(:account) { Fabricate(:account, username: 'alice') }
let(:field) { Account::Field.new(account, 'name' => 'Website', 'value' => 'http://example.com') }
before do
stub_request(:head, 'https://redirect.me/abc').to_return(status: 301, headers: { 'Location' => ActivityPub::TagManager.instance.url_for(account) })
stub_request(:get, 'http://example.com').to_return(status: 200, body: html)
subject.call(field)
end
context 'when a link contains an <a> back' do
let(:html) do
<<-HTML
<!doctype html>
<body>
<a href="#{ActivityPub::TagManager.instance.url_for(account)}" rel="me">Follow me on Mastodon</a>
</body>
HTML
end
it 'marks the field as verified' do
expect(field.verified?).to be true
end
end
context 'when a link contains an <a rel="noopener noreferrer"> back' do
let(:html) do
<<-HTML
<!doctype html>
<body>
<a href="#{ActivityPub::TagManager.instance.url_for(account)}" rel="me noopener noreferrer" target="_blank">Follow me on Mastodon</a>
</body>
HTML
end
it 'marks the field as verified' do
expect(field.verified?).to be true
end
end
context 'when a link contains a <link> back' do
let(:html) do
<<-HTML
<!doctype html>
<head>
<link type="text/html" href="#{ActivityPub::TagManager.instance.url_for(account)}" rel="me" />
</head>
HTML
end
it 'marks the field as verified' do
expect(field.verified?).to be true
end
end
context 'when a link goes through a redirect back' do
let(:html) do
<<-HTML
<!doctype html>
<head>
<link type="text/html" href="https://redirect.me/abc" rel="me" />
</head>
HTML
end
it 'marks the field as verified' do
expect(field.verified?).to be true
end
end
context 'when a document is truncated but the link back is valid' do
let(:html) do
"
<!doctype html>
<body>
<a rel=\"me\" href=\"#{ActivityPub::TagManager.instance.url_for(account)}\"
"
end
it 'marks the field as not verified' do
expect(field.verified?).to be false
end
end
context 'when a link back might be truncated' do
let(:html) do
"
<!doctype html>
<body>
<a rel=\"me\" href=\"#{ActivityPub::TagManager.instance.url_for(account)}"
end
it 'does not mark the field as verified' do
expect(field.verified?).to be false
end
end
context 'when a link does not contain a link back' do
let(:html) { '' }
it 'does not mark the field as verified' do
expect(field.verified?).to be false
end
end
context 'when link has no `href` attribute' do
let(:html) do
<<-HTML
<!doctype html>
<head>
<link type="text/html" rel="me" />
</head>
<body>
<a rel="me" target="_blank">Follow me on Mastodon</a>
</body>
HTML
end
it 'does not mark the field as verified' do
expect(field.verified?).to be false
end
end
end
context 'when given a remote account' do
let(:account) { Fabricate(:account, username: 'alice', domain: 'example.com', url: 'https://profile.example.com/alice') }
let(:field) { Account::Field.new(account, 'name' => 'Website', 'value' => '<a href="http://example.com" rel="me"><span class="invisible">http://</span><span class="">example.com</span><span class="invisible"></span></a>') }
before do
stub_request(:get, 'http://example.com').to_return(status: 200, body: html)
subject.call(field)
end
context 'when a link contains an <a> back' do
let(:html) do
<<-HTML
<!doctype html>
<body>
<a href="https://profile.example.com/alice" rel="me">Follow me on Mastodon</a>
</body>
HTML
end
it 'marks the field as verified' do
expect(field.verified?).to be true
end
end
context 'when the link contains a link with a missing protocol slash' do
# This was seen in the wild where a user had three pages:
# 1. their mastodon profile, which linked to github and the personal website
# 2. their personal website correctly linking back to mastodon
# 3. a github profile that was linking to the personal website, but with
# a malformed protocol of http:/
#
# This caused link verification between the mastodon profile and the
# website to fail.
#
# apparently github allows the user to enter website URLs with a single
# slash and makes no attempts to correct that.
let(:html) { '<a href="http:/unrelated.example">Hello</a>' }
it 'does not crash' do
# We could probably put more effort into perhaps auto-correcting the
# link and following it anyway, but at the very least we shouldn't let
# exceptions bubble up
expect(field.verified?).to be false
end
end
end
end