From 71fa7eeb6fdc7cf2087a32fb515ad11b7bf90c01 Mon Sep 17 00:00:00 2001 From: William Pitcock Date: Wed, 15 May 2019 16:54:14 +0000 Subject: [PATCH] thread visibility function: significantly improve efficiency --- ...5222404_add_thread_visibility_function.exs | 27 +++++++------------ 1 file changed, 9 insertions(+), 18 deletions(-) diff --git a/priv/repo/migrations/20190515222404_add_thread_visibility_function.exs b/priv/repo/migrations/20190515222404_add_thread_visibility_function.exs index a3f717b89..a4daf680b 100644 --- a/priv/repo/migrations/20190515222404_add_thread_visibility_function.exs +++ b/priv/repo/migrations/20190515222404_add_thread_visibility_function.exs @@ -10,8 +10,8 @@ def up do child objects%ROWTYPE; activity activities%ROWTYPE; actor_user users%ROWTYPE; - author users%ROWTYPE; author_fa varchar; + valid_recipients varchar[]; BEGIN --- Fetch our actor. SELECT * INTO actor_user FROM users WHERE users.ap_id = actor; @@ -36,26 +36,17 @@ def up do INNER JOIN activities ON COALESCE(activities.data->'object'->>'id', activities.data->>'object') = objects.data->>'id' WHERE COALESCE(activity.data->'object'->>'id', activity.data->>'object') = objects.data->>'id'; - --- Fetch the author. - SELECT * INTO author FROM users WHERE users.ap_id = activity.actor; + --- Fetch the author's AS2 following collection. + SELECT COALESCE(author.follower_address, '') INTO author_fa FROM users WHERE users.ap_id = activity.actor; - --- Prepare author's AS2 followers collection. - SELECT COALESCE(author.follower_address, '') INTO author_fa; + --- Prepare valid recipients array. + valid_recipients := ARRAY[actor, public]; + IF ARRAY[author_fa] && actor_user.following THEN + valid_recipients := valid_recipients || author_fa; + END IF; --- Check visibility. - IF activity.actor = actor THEN - --- activity visible - NULL; - ELSIF ARRAY[public] && activity.recipients THEN - --- activity visible - NULL; - ELSIF ARRAY[author_fa] && activity.recipients AND ARRAY[author_fa] && actor_user.following THEN - --- activity visible - NULL; - ELSIF ARRAY[actor] && activity.recipients THEN - --- activity visible - NULL; - ELSE + IF NOT valid_recipients && activity.recipients THEN --- activity not visible, break out of the loop RETURN false; END IF;