fix it better

app/controllers/yiff_rest/api_v2/images_controller.rb

@@ -63,6 +63,7 @@ module YiffRest
 
       def query_iqdb
         @sp = search_iqdb_params
+        @sp[:image_id] ||= @sp[:md5]
         @sc = (@sp[:score_cutoff].presence || 60).to_i
         if @sp[:file].present?
           @results = Iqdb.query_file(@sp[:file], @sc)
@@ -92,7 +93,7 @@ module YiffRest
       end
 
       def search_iqdb_params
-        permit_search_params(%i[file url image_id score_cutoff])
+        permit_search_params(%i[file url image_id md5 score_cutoff])
       end
 
       def create_params

app/logical/iqdb.rb

@@ -54,13 +54,13 @@ module Iqdb
   end
 
   def query_file(file, score_cutoff)
-    Tempfile.open("yiffy2-#{file.md5}") do |tempfile|
+    Tempfile.open("yiffy2-queryfile") do |tempfile|
       file.binmode
       tempfile.binmode
       tempfile.write(file.read)
       tempfile.rewind
       thumb = generate_thumbnail(tempfile.path)
-      raise(Error, "failed to generate thumb for #{file.md5}") unless thumb
+      raise(Error, "failed to generate thumb for file") unless thumb
 
       response = make_request("/query", :post, get_channels_data(thumb))
       raise(Error, "iqdb request failed") if response.status != 200