From ad86c86fa8e0d577b1a6c7411367420e6beea4ea Mon Sep 17 00:00:00 2001
From: David Yip <yipdw@member.fsf.org>
Date: Sat, 21 Oct 2017 15:44:47 -0500
Subject: [PATCH] Apply keyword mutes to reblogs.

---
 app/lib/feed_manager.rb                         |  5 ++++-
 app/models/glitch/keyword_mute.rb               |  4 ++++
 .../glitch_keyword_mute_fabricator.rb           |  2 +-
 spec/lib/feed_manager_spec.rb                   | 17 +++++++++++++++++
 4 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/app/lib/feed_manager.rb b/app/lib/feed_manager.rb
index 1123f88bb..576188324 100644
--- a/app/lib/feed_manager.rb
+++ b/app/lib/feed_manager.rb
@@ -138,7 +138,9 @@ class FeedManager
   end
 
   def filter_from_home?(status, receiver_id)
-    return true if Glitch::KeywordMute.matcher_for(receiver_id) =~ status.text
+    keyword_mute_matcher = Glitch::KeywordMute.matcher_for(receiver_id)
+
+    return true if keyword_mute_matcher =~ status.text
 
     return false if receiver_id == status.account_id
     return true  if status.reply? && (status.in_reply_to_id.nil? || status.in_reply_to_account_id.nil?)
@@ -161,6 +163,7 @@ class FeedManager
       return should_filter
     elsif status.reblog?                                                                                                 # Filter out a reblog
       should_filter   = Block.where(account_id: status.reblog.account_id, target_account_id: receiver_id).exists?        # or if the author of the reblogged status is blocking me
+      should_filter ||= keyword_mute_matcher.matches?(status.reblog.text)
       should_filter ||= AccountDomainBlock.where(account_id: receiver_id, domain: status.reblog.account.domain).exists?  # or the author's domain is blocked
       return should_filter
     end
diff --git a/app/models/glitch/keyword_mute.rb b/app/models/glitch/keyword_mute.rb
index 3b0b47f52..823e252d3 100644
--- a/app/models/glitch/keyword_mute.rb
+++ b/app/models/glitch/keyword_mute.rb
@@ -45,5 +45,9 @@ class Glitch::KeywordMute < ApplicationRecord
     def =~(str)
       regex ? regex =~ str : false
     end
+
+    def matches?(str)
+      !!(regex =~ str)
+    end
   end
 end
diff --git a/spec/fabricators/glitch_keyword_mute_fabricator.rb b/spec/fabricators/glitch_keyword_mute_fabricator.rb
index 8601ed6d7..20d393320 100644
--- a/spec/fabricators/glitch_keyword_mute_fabricator.rb
+++ b/spec/fabricators/glitch_keyword_mute_fabricator.rb
@@ -1,2 +1,2 @@
-Fabricator(:glitch_keyword_mute) do
+Fabricator('Glitch::KeywordMute') do
 end
diff --git a/spec/lib/feed_manager_spec.rb b/spec/lib/feed_manager_spec.rb
index 1861cc6ed..c9403d616 100644
--- a/spec/lib/feed_manager_spec.rb
+++ b/spec/lib/feed_manager_spec.rb
@@ -119,6 +119,23 @@ RSpec.describe FeedManager do
         reblog = Fabricate(:status, reblog: status, account: jeff)
         expect(FeedManager.instance.filter?(:home, reblog, alice.id)).to be true
       end
+
+      it 'returns true for a status containing a muted keyword' do
+        Fabricate('Glitch::KeywordMute', account: alice, keyword: 'take')
+        alice.follow!(bob)
+        status = Fabricate(:status, text: 'This is a hot take', account: bob)
+
+        expect(FeedManager.instance.filter?(:home, status, alice.id)).to be true
+      end
+
+      it 'returns true for a reblog containing a muted keyword' do
+        Fabricate('Glitch::KeywordMute', account: alice, keyword: 'take')
+        alice.follow!(jeff)
+        status = Fabricate(:status, text: 'This is a hot take', account: bob)
+        reblog = Fabricate(:status, reblog: status, account: jeff)
+
+        expect(FeedManager.instance.filter?(:home, reblog, alice.id)).to be true
+      end
     end
 
     context 'for mentions feed' do