Fill out some examples for Glitch::FilterHelper. #234.

Also add HTML entity decoding to Glitch::FilterHelper, which is needed
to e.g. match "<" to the tag-stripped version of "<p><3</p>" or
"<p>&lt;3</p>".
This commit is contained in:
David Yip 2017-12-03 21:40:28 -06:00
parent 29b5b46c87
commit d263e3bc2d
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2 changed files with 55 additions and 4 deletions

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@ -1,12 +1,16 @@
require 'htmlentities'
class Glitch::FilterHelper
include ActionView::Helpers::SanitizeHelper
attr_reader :text_matcher
attr_reader :tag_matcher
attr_reader :entity_decoder
def initialize(receiver_id)
@text_matcher = Glitch::KeywordMute.text_matcher_for(receiver_id)
@tag_matcher = Glitch::KeywordMute.tag_matcher_for(receiver_id)
@entity_decoder = HTMLEntities.new
end
def matches?(status)
@ -16,8 +20,12 @@ class Glitch::FilterHelper
private
def matchers_match?(status)
text_matcher.matches?(strip_tags(status.text)) ||
text_matcher.matches?(strip_tags(status.spoiler_text)) ||
text_matcher.matches?(prepare_text(status.text)) ||
text_matcher.matches?(prepare_text(status.spoiler_text)) ||
tag_matcher.matches?(status.tags)
end
def prepare_text(text)
entity_decoder.decode(strip_tags(text))
end
end

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@ -0,0 +1,43 @@
require 'rails_helper'
RSpec.describe Glitch::FilterHelper do
describe '#matches?' do
let(:alice) { Fabricate(:account, username: 'alice').tap(&:save!) }
let(:helper) { Glitch::FilterHelper.new(alice) }
it 'ignores names of HTML tags in status text' do
status = Fabricate(:status, text: '<addr>uh example</addr>')
Glitch::KeywordMute.create!(account: alice, keyword: 'addr')
expect(helper.matches?(status)).to be false
end
it 'ignores properties of HTML tags in status text' do
status = Fabricate(:status, text: '<a href="https://www.example.org">uh example</a>')
Glitch::KeywordMute.create!(account: alice, keyword: 'href')
expect(helper.matches?(status)).to be false
end
it 'matches text inside HTML tags' do
status = Fabricate(:status, text: '<p>HEY THIS IS SOMETHING ANNOYING</p>')
Glitch::KeywordMute.create!(account: alice, keyword: 'annoying')
expect(helper.matches?(status)).to be true
end
it 'matches < in HTML-stripped text' do
status = Fabricate(:status, text: '<p>I <3 oats</p>')
Glitch::KeywordMute.create!(account: alice, keyword: '<3')
expect(helper.matches?(status)).to be true
end
it 'matches &lt; in HTML text' do
status = Fabricate(:status, text: '<p>I &lt;3 oats</p>')
Glitch::KeywordMute.create!(account: alice, keyword: '<3')
expect(helper.matches?(status)).to be true
end
end
end