[Minor] Disable redis cache for ASN module

src/plugins/lua/asn.lua

@@ -28,7 +28,6 @@ local options = {
   expire = 86400, -- 1 day by default
   key_prefix = 'rasn',
 }
-local redis_params
 
 local rspamd_re = rspamd_regexp.create_cached("[\\|\\s]")
 
@@ -63,32 +62,6 @@ local function asn_check(task)
       local parts = rspamd_re:split(results[1])
       -- "15169 | 8.8.8.0/24 | US | arin |" for 8.8.8.8
       asn_set(parts[1], parts[2], parts[3])
-
-      if redis_params then
-        local redis_key = options.key_prefix .. ip:to_string()
-        local ret,conn,upstream
-        local function redis_asn_set_cb(redis_err)
-          if redis_err then
-            rspamd_logger.errx(task, 'got error %s when setting asn record on server %s',
-              redis_err, upstream:get_addr())
-          end
-        end
-        ret,conn,upstream = rspamd_redis_make_request(task,
-          redis_params, -- connect params
-          redis_key, -- hash key
-          true, -- is write
-          redis_asn_set_cb, --callback
-          'HMSET', -- command
-          {redis_key, "asn", parts[1], "net", parts[2], "country", parts[3]} -- arguments
-        )
-        if ret then
-          conn:add_cmd('EXPIRE', {
-            redis_key, tostring(options['expire'])
-          })
-        else
-          rspamd_logger.errx(task, 'got error while connecting to redis')
-        end
-      end
     end
     local dnsbl = options['provider_info']['ip' .. ip:get_version()]
     local req_name = rspamd_logger.slog("%1.%2",
@@ -97,58 +70,9 @@ local function asn_check(task)
         req_name, rspamd_dns_cb)
   end
 
-  local function asn_check_cache(ip, continuation_func)
-    local key = options.key_prefix .. ip:to_string()
-
-    local function redis_asn_get_cb(err, data)
-      if err or not data or type(data[1]) ~= 'string' then
-        continuation_func(ip)
-      else
-        asn_set(data[1], data[2], data[3])
-        -- Refresh key
-        local function redis_asn_expire_cb(redis_err)
-          if redis_err then
-            rspamd_logger.errx(task, 'Error setting expire: %s',
-                redis_err)
-          end
-        end
-
-        local ret = rspamd_redis_make_request(task,
-          redis_params, -- connect params
-          key, -- hash key
-          true, -- is write
-          redis_asn_expire_cb, --callback
-          'EXPIRE', -- command
-          {key, tostring(options.expire)} -- arguments
-        )
-        if not ret then
-          rspamd_logger.errx(task, 'got error connecting to redis')
-        end
-      end
-    end
-
-    local ret = rspamd_redis_make_request(task,
-      redis_params, -- connect params
-      key, -- hash key
-      false, -- is write
-      redis_asn_get_cb, --callback
-      'HMGET', -- command
-      {key, "asn", "net", "country"} -- arguments
-    )
-
-    if not ret then
-      continuation_func(ip)
-    end
-  end
-
   local ip = task:get_from_ip()
   if not (ip and ip:is_valid()) then return end
-
-  if not redis_params then
-    asn_check_func[options['provider_type']](ip)
-  else
-    asn_check_cache(ip, asn_check_func[options['provider_type']])
-  end
+  asn_check_func[options['provider_type']](ip)
 end
 
 -- Configuration options
@@ -169,7 +93,6 @@ local configure_asn_module = function()
     rspamd_logger.errx("Unknown provider_type: %s", options['provider_type'])
     return false
   end
-  redis_params = rspamd_parse_redis_server('asn')
   return true
 end