7 files changed, 22 insertions, 10 deletions
diff --git a/lib/pleroma/maps.ex b/lib/pleroma/maps.ex
index 6d586e53e..5020a8ff8 100644
--- a/lib/pleroma/maps.ex
+++ b/lib/pleroma/maps.ex
@@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2024 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Maps do
@@ -18,4 +18,17 @@ defmodule Pleroma.Maps do
   rescue
     _ -> data
   end
+
+  def filter_empty_values(data) do
+    # TODO: Change to Map.filter in Elixir 1.13+
+    data
+    |> Enum.filter(fn
+      {_k, nil} -> false
+      {_k, ""} -> false
+      {_k, []} -> false
+      {_k, %{} = v} -> Map.keys(v) != []
+      {_k, _v} -> true
+    end)
+    |> Map.new()
+  end
 end
diff --git a/lib/pleroma/password/pbkdf2.ex b/lib/pleroma/password/pbkdf2.ex
index 92e9e1952..9c6d2e381 100644
--- a/lib/pleroma/password/pbkdf2.ex
+++ b/lib/pleroma/password/pbkdf2.ex
@@ -28,7 +28,7 @@ defmodule Pleroma.Password.Pbkdf2 do
 
     iterations = String.to_integer(iterations)
 
-    digest = String.to_atom(digest)
+    digest = String.to_existing_atom(digest)
 
     binary_hash =
       KeyGenerator.generate(password, salt, digest: digest, iterations: iterations, length: 64)
diff --git a/lib/pleroma/reverse_proxy.ex b/lib/pleroma/reverse_proxy.ex
index cc4530010..4d13e51fc 100644
--- a/lib/pleroma/reverse_proxy.ex
+++ b/lib/pleroma/reverse_proxy.ex
@@ -8,7 +8,7 @@ defmodule Pleroma.ReverseProxy do
                       ~w(if-unmodified-since if-none-match) ++ @range_headers
   @resp_cache_headers ~w(etag date last-modified)
   @keep_resp_headers @resp_cache_headers ++
-                       ~w(content-length content-type content-disposition content-encoding) ++
+                       ~w(content-type content-disposition content-encoding) ++
                        ~w(content-range accept-ranges vary)
   @default_cache_control_header "public, max-age=1209600"
   @valid_resp_codes [200, 206, 304]
diff --git a/lib/pleroma/telemetry/logger.ex b/lib/pleroma/telemetry/logger.ex
index 92d395394..9998d8185 100644
--- a/lib/pleroma/telemetry/logger.ex
+++ b/lib/pleroma/telemetry/logger.ex
@@ -59,7 +59,7 @@ defmodule Pleroma.Telemetry.Logger do
         _,
         _
       ) do
-    Logger.error(fn ->
+    Logger.debug(fn ->
       "Connection pool had to refuse opening a connection to #{key} due to connection limit exhaustion"
     end)
   end
@@ -81,7 +81,7 @@ defmodule Pleroma.Telemetry.Logger do
         %{key: key, protocol: :http},
         _
       ) do
-    Logger.info(fn ->
+    Logger.debug(fn ->
       "Pool worker for #{key}: #{length(clients)} clients are using an HTTP1 connection at the same time, head-of-line blocking might occur."
     end)
   end
diff --git a/lib/pleroma/web/activity_pub/object_validators/common_fixes.ex b/lib/pleroma/web/activity_pub/object_validators/common_fixes.ex
index ab56ba468..4699029d4 100644
--- a/lib/pleroma/web/activity_pub/object_validators/common_fixes.ex
+++ b/lib/pleroma/web/activity_pub/object_validators/common_fixes.ex
@@ -4,6 +4,7 @@
 
 defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes do
   alias Pleroma.EctoType.ActivityPub.ObjectValidators
+  alias Pleroma.Maps
   alias Pleroma.Object
   alias Pleroma.Object.Containment
   alias Pleroma.User
@@ -24,6 +25,8 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes do
   end
 
   def fix_object_defaults(data) do
+    data = Maps.filter_empty_values(data)
+
     context =
       Utils.maybe_create_context(
         data["context"] || data["conversation"] || data["inReplyTo"] || data["id"]
diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index 69854b084..edfe73a25 100644
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -336,10 +336,6 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
 
   def fix_tag(object), do: object
 
-  def fix_content_map(%{"contentMap" => nil} = object) do
-    Map.drop(object, ["contentMap"])
-  end
-
   # content map usually only has one language so this will do for now.
   def fix_content_map(%{"contentMap" => content_map} = object) do
     content_groups = Map.to_list(content_map)
diff --git a/lib/pleroma/workers/background_worker.ex b/lib/pleroma/workers/background_worker.ex
index 794417612..7a2210dc1 100644
--- a/lib/pleroma/workers/background_worker.ex
+++ b/lib/pleroma/workers/background_worker.ex
@@ -28,7 +28,7 @@ defmodule Pleroma.Workers.BackgroundWorker do
   def perform(%Job{args: %{"op" => op, "user_id" => user_id, "identifiers" => identifiers}})
       when op in ["blocks_import", "follow_import", "mutes_import"] do
     user = User.get_cached_by_id(user_id)
-    {:ok, User.Import.perform(String.to_atom(op), user, identifiers)}
+    {:ok, User.Import.perform(String.to_existing_atom(op), user, identifiers)}
   end
 
   def perform(%Job{