Fixing duplicate actor_id for community and user. Fixes #957

server/lemmy_db/src/activity.rs

@@ -117,7 +117,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_862362".into(),
       bio: None,
       local: true,
       private_key: None,

server/lemmy_db/src/comment.rs

@@ -233,7 +233,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_283687".into(),
       bio: None,
       local: true,
       private_key: None,
@@ -253,7 +253,7 @@ mod tests {
       deleted: None,
       updated: None,
       nsfw: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_928738972".into(),
       local: true,
       private_key: None,
       public_key: None,

server/lemmy_db/src/comment_view.rs

@@ -498,7 +498,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_92873982".into(),
       bio: None,
       local: true,
       private_key: None,
@@ -518,7 +518,7 @@ mod tests {
       deleted: None,
       updated: None,
       nsfw: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_7625376".into(),
       local: true,
       private_key: None,
       public_key: None,

server/lemmy_db/src/community.rs

@@ -258,7 +258,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_8266238".into(),
       bio: None,
       local: true,
       private_key: None,
@@ -278,7 +278,7 @@ mod tests {
       removed: None,
       deleted: None,
       updated: None,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_7625376".into(),
       local: true,
       private_key: None,
       public_key: None,
@@ -300,7 +300,7 @@ mod tests {
       deleted: false,
       published: inserted_community.published,
       updated: None,
-      actor_id: "http://fake.com".into(),
+      actor_id: inserted_community.actor_id.to_owned(),
       local: true,
       private_key: None,
       public_key: None,

server/lemmy_db/src/moderator.rs

@@ -470,7 +470,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_829398".into(),
       bio: None,
       local: true,
       private_key: None,
@@ -497,7 +497,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_82982738".into(),
       bio: None,
       local: true,
       private_key: None,
@@ -517,7 +517,7 @@ mod tests {
       deleted: None,
       updated: None,
       nsfw: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_283687".into(),
       local: true,
       private_key: None,
       public_key: None,

server/lemmy_db/src/password_reset_request.rs

@@ -105,7 +105,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_8292378".into(),
       bio: None,
       local: true,
       private_key: None,

server/lemmy_db/src/post.rs

@@ -279,7 +279,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_8292683678".into(),
       bio: None,
       local: true,
       private_key: None,
@@ -299,7 +299,7 @@ mod tests {
       deleted: None,
       updated: None,
       nsfw: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_8223262378".into(),
       local: true,
       private_key: None,
       public_key: None,

server/lemmy_db/src/post_view.rs

@@ -415,7 +415,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_8282738268".into(),
       bio: None,
       local: true,
       private_key: None,
@@ -435,7 +435,7 @@ mod tests {
       deleted: None,
       updated: None,
       nsfw: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_2763".into(),
       local: true,
       private_key: None,
       public_key: None,

server/lemmy_db/src/private_message.rs

@@ -113,7 +113,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_6723878".into(),
       bio: None,
       local: true,
       private_key: None,
@@ -140,7 +140,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_287263876".into(),
       bio: None,
       local: true,
       private_key: None,

server/lemmy_db/src/user.rs

@@ -166,7 +166,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_9826382637".into(),
       bio: None,
       local: true,
       private_key: None,
@@ -195,7 +195,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: inserted_user.actor_id.to_owned(),
       bio: None,
       local: true,
       private_key: None,

server/lemmy_db/src/user_mention.rs

@@ -86,7 +86,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_628763".into(),
       bio: None,
       local: true,
       private_key: None,
@@ -113,7 +113,7 @@ mod tests {
       lang: "browser".into(),
       show_avatars: true,
       send_notifications_to_email: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_927389278".into(),
       bio: None,
       local: true,
       private_key: None,
@@ -133,7 +133,7 @@ mod tests {
       deleted: None,
       updated: None,
       nsfw: false,
-      actor_id: "http://fake.com".into(),
+      actor_id: "changeme_876238".into(),
       local: true,
       private_key: None,
       public_key: None,

server/migrations/2020-07-18-234519_add_unique_community_user_actor_ids/down.sql

@@ -0,0 +1,20 @@
+
+alter table community alter column actor_id set not null;
+alter table community alter column actor_id set default 'http://fake.com';
+alter table user_ alter column actor_id set not null;
+alter table user_ alter column actor_id set default 'http://fake.com';
+
+drop function generate_unique_changeme;
+
+update community
+set actor_id = 'http://fake.com'
+where actor_id like 'changeme_%';
+
+update user_
+set actor_id = 'http://fake.com'
+where actor_id like 'changeme_%';
+
+drop index idx_user_lower_actor_id;
+create unique index idx_user_name_lower_actor_id on user_ (lower(name), lower(actor_id));
+
+drop index idx_community_lower_actor_id;

server/migrations/2020-07-18-234519_add_unique_community_user_actor_ids/up.sql

@@ -0,0 +1,48 @@
+-- Following this issue : https://github.com/LemmyNet/lemmy/issues/957
+
+-- Creating a unique changeme actor_id
+create or replace function generate_unique_changeme() 
+returns text language sql 
+as $$
+  select 'changeme_' || string_agg (substr('abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789', ceil (random() * 62)::integer, 1), '')
+  from generate_series(1, 20)
+$$;
+
+update community 
+set actor_id = generate_unique_changeme()
+where actor_id = 'http://fake.com';
+
+update user_ 
+set actor_id = generate_unique_changeme()
+where actor_id = 'http://fake.com';
+
+-- Need to delete the possible community and user dupes for ones that don't start with the fake one
+-- TODO make sure this removes the later ids, not the first
+delete from community a using (
+  select min(id) as id, actor_id
+    from community 
+    group by actor_id having count(*) > 1
+) b
+where a.actor_id = b.actor_id 
+and a.id <> b.id;
+
+delete from user_ a using (
+  select min(id) as id, actor_id
+    from user_ 
+    group by actor_id having count(*) > 1
+) b
+where a.actor_id = b.actor_id 
+and a.id <> b.id;
+
+-- Add the unique indexes
+alter table community alter column actor_id set not null;
+alter table community alter column actor_id set default generate_unique_changeme();
+
+alter table user_ alter column actor_id set not null;
+alter table user_ alter column actor_id set default generate_unique_changeme();
+
+-- Add lowercase uniqueness too
+drop index idx_user_name_lower_actor_id;
+create unique index idx_user_lower_actor_id on user_ (lower(actor_id));
+
+create unique index idx_community_lower_actor_id on community (lower(actor_id));

server/src/code_migrations.rs

@@ -30,7 +30,7 @@ fn user_updates_2020_04_02(conn: &PgConnection) -> Result<(), LemmyError> {
 
   // Update the actor_id, private_key, and public_key, last_refreshed_at
   let incorrect_users = user_
-    .filter(actor_id.eq("http://fake.com"))
+    .filter(actor_id.like("changeme_%"))
     .filter(local.eq(true))
     .load::<User_>(conn)?;
 
@@ -81,7 +81,7 @@ fn community_updates_2020_04_02(conn: &PgConnection) -> Result<(), LemmyError> {
 
   // Update the actor_id, private_key, and public_key, last_refreshed_at
   let incorrect_communities = community
-    .filter(actor_id.eq("http://fake.com"))
+    .filter(actor_id.like("changeme_%"))
     .filter(local.eq(true))
     .load::<Community>(conn)?;