plugins: Use integer config API with interval specification where sensible

Many of these fall into a few categories:
- util.cache size, must be >= 1
- byte or item counts that logically can't be negative
- port numbers that should be in 1..0xffff

1 files changed, 2 insertions, 2 deletions

diff --git a/plugins/mod_http_files.lua b/plugins/mod_http_files.lua
index f91cde86..799fb9c8 100644
--- a/plugins/mod_http_files.lua
+++ b/plugins/mod_http_files.lua
@@ -12,8 +12,8 @@ local open = io.open;
 local fileserver = require"prosody.net.http.files";
 
 local base_path = module:get_option_path("http_files_dir", module:get_option_path("http_path"));
-local cache_size = module:get_option_number("http_files_cache_size", 128);
-local cache_max_file_size = module:get_option_number("http_files_cache_max_file_size", 4096);
+local cache_size = module:get_option_integer("http_files_cache_size", 128, 1);
+local cache_max_file_size = module:get_option_integer("http_files_cache_max_file_size", 4096, 1);
 local dir_indices = module:get_option_array("http_index_files", { "index.html", "index.htm" });
 local directory_index = module:get_option_boolean("http_dir_listing");