fix: remove pg_net grants

Author: soedirgo

migrations/db/migrations/20250220051611_pg_net_perms_fix.sql

@@ -0,0 +1,56 @@
+-- migrate:up
+DO $$
+DECLARE
+  pg_net_installed boolean;
+BEGIN
+  -- checks if pg_net is enabled
+  pg_net_installed = (
+    select count(*) = 1 
+    from pg_available_extensions 
+    where name = 'pg_net'
+    and installed_version is not null
+      
+  );
+
+  IF pg_net_installed 
+  THEN
+    ALTER function net.http_get(url text, params jsonb, headers jsonb, timeout_milliseconds integer) SECURITY INVOKER;
+    ALTER function net.http_post(url text, body jsonb, params jsonb, headers jsonb, timeout_milliseconds integer) SECURITY INVOKER;
+
+    REVOKE EXECUTE ON FUNCTION net.http_get(url text, params jsonb, headers jsonb, timeout_milliseconds integer) FROM supabase_functions_admin, postgres, anon, authenticated, service_role;
+    REVOKE EXECUTE ON FUNCTION net.http_post(url text, body jsonb, params jsonb, headers jsonb, timeout_milliseconds integer) FROM supabase_functions_admin, postgres, anon, authenticated, service_role;
+
+    GRANT ALL ON FUNCTION net.http_get(url text, params jsonb, headers jsonb, timeout_milliseconds integer) TO PUBLIC;
+    GRANT ALL ON FUNCTION net.http_post(url text, body jsonb, params jsonb, headers jsonb, timeout_milliseconds integer) TO PUBLIC;
+  END IF;
+END $$;
+
+CREATE OR REPLACE FUNCTION extensions.grant_pg_net_access()
+RETURNS event_trigger
+LANGUAGE plpgsql
+AS $$
+BEGIN
+  IF EXISTS (
+    SELECT 1
+    FROM pg_event_trigger_ddl_commands() AS ev
+    JOIN pg_extension AS ext
+    ON ev.objid = ext.oid
+    WHERE ext.extname = 'pg_net'
+  )
+  THEN
+    IF NOT EXISTS (
+      SELECT 1
+      FROM pg_roles
+      WHERE rolname = 'supabase_functions_admin'
+    )
+    THEN
+      CREATE USER supabase_functions_admin NOINHERIT CREATEROLE LOGIN NOREPLICATION;
+    END IF;
+
+    GRANT USAGE ON SCHEMA net TO supabase_functions_admin, postgres, anon, authenticated, service_role;
+  END IF;
+END;
+$$;
+COMMENT ON FUNCTION extensions.grant_pg_net_access IS 'Grants access to pg_net';
+
+-- migrate:down