Add logging of S3-related errors (#16381)

app/controllers/api/base_controller.rb

@@ -40,7 +40,12 @@ class Api::BaseController < ApplicationController
     render json: { error: 'This action is not allowed' }, status: 403
   end
 
-  rescue_from Mastodon::RaceConditionError, Seahorse::Client::NetworkingError, Stoplight::Error::RedLight do
+  rescue_from Seahorse::Client::NetworkingError do |e|
+    Rails.logger.warn "Storage server error: #{e}"
+    render json: { error: 'There was a temporary problem serving your request, please try again' }, status: 503
+  end
+
+  rescue_from Mastodon::RaceConditionError, Stoplight::Error::RedLight do
     render json: { error: 'There was a temporary problem serving your request, please try again' }, status: 503
   end
 

app/controllers/application_controller.rb

@@ -26,7 +26,12 @@ class ApplicationController < ActionController::Base
   rescue_from Mastodon::RateLimitExceededError, with: :too_many_requests
 
   rescue_from HTTP::Error, OpenSSL::SSL::SSLError, with: :internal_server_error
-  rescue_from Mastodon::RaceConditionError, Seahorse::Client::NetworkingError, Stoplight::Error::RedLight, ActiveRecord::SerializationFailure, with: :service_unavailable
+  rescue_from Mastodon::RaceConditionError, Stoplight::Error::RedLight, ActiveRecord::SerializationFailure, with: :service_unavailable
+
+  rescue_from Seahorse::Client::NetworkingError do |e|
+    Rails.logger.warn "Storage server error: #{e}"
+    service_unavailable
+  end
 
   before_action :store_current_location, except: :raise_not_found, unless: :devise_controller?
   before_action :require_functional!, if: :user_signed_in?

app/lib/activitypub/activity/create.rb

@@ -223,8 +223,8 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
     emoji ||= CustomEmoji.new(domain: @account.domain, shortcode: shortcode, uri: uri)
     emoji.image_remote_url = image_url
     emoji.save
-  rescue Seahorse::Client::NetworkingError
+  rescue Seahorse::Client::NetworkingError => e
-    nil
+    Rails.logger.warn "Error storing emoji: #{e}"
   end
 
   def process_attachments
@@ -247,8 +247,8 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
         media_attachment.save
       rescue Mastodon::UnexpectedResponseError, HTTP::TimeoutError, HTTP::ConnectionError, OpenSSL::SSL::SSLError
         RedownloadMediaWorker.perform_in(rand(30..600).seconds, media_attachment.id)
-      rescue Seahorse::Client::NetworkingError
+      rescue Seahorse::Client::NetworkingError => e
-        nil
+        Rails.logger.warn "Error storing media attachment: #{e}"
       end
     end
 

app/services/backup_service.rb

@@ -167,7 +167,7 @@ class BackupService < BaseService
         io.write(buffer)
       end
     end
-  rescue Errno::ENOENT, Seahorse::Client::NetworkingError
+  rescue Errno::ENOENT, Seahorse::Client::NetworkingError => e
-    Rails.logger.warn "Could not backup file #{filename}: file not found"
+    Rails.logger.warn "Could not backup file #{filename}: #{e}"
   end
 end