Enhancements

Fix a typo which cause the server to hang.
Add option to enable reload pref config on request.
Optimize codes.

src/handler/interfaces.cpp

@@ -323,7 +323,7 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
         return "Invalid target!";
     }
     //check if we need to read configuration
-    if((!global.APIMode || global.CFWChildProcess) && !global.generatorMode)
+    if(global.reloadConfOnRequest && (!global.APIMode || global.CFWChildProcess) && !global.generatorMode)
         readConf();
 
     /// string values

src/handler/settings.cpp

@@ -338,6 +338,7 @@ void readYAMLConf(YAML::Node &node)
     section["proxy_config"] >> global.proxyConfig;
     section["proxy_ruleset"] >> global.proxyRuleset;
     section["proxy_subscription"] >> global.proxySubscription;
+    section["reload_conf_on_request"] >> global.reloadConfOnRequest;
 
     if(node["userinfo"].IsDefined())
     {
@@ -612,7 +613,8 @@ void readTOMLConf(toml::value &root)
                   "proxy_config", global.proxyConfig,
                   "proxy_ruleset", global.proxyRuleset,
                   "proxy_subscription", global.proxySubscription,
-                  "append_proxy_type", global.appendType
+                  "append_proxy_type", global.appendType,
+                  "reload_conf_on_request", global.reloadConfOnRequest
     );
 
     if(filter)
@@ -854,6 +856,7 @@ void readConf()
     ini.get_if_exist("proxy_config", global.proxyConfig);
     ini.get_if_exist("proxy_ruleset", global.proxyRuleset);
     ini.get_if_exist("proxy_subscription", global.proxySubscription);
+    ini.get_bool_if_exist("reload_conf_on_request", global.reloadConfOnRequest);
 
     if(ini.section_exist("surge_external_proxy"))
     {

src/handler/settings.h

@@ -42,6 +42,7 @@ struct Settings
     std::string generateProfiles;
 
     //preferences
+    bool reloadConfOnRequest = false;
     RegexMatchConfigs renames, emojis;
     bool addEmoji = false, removeEmoji = false, appendType = false, filterDeprecated = true;
     tribool UDPFlag, TFOFlag, skipCertVerify, TLS13Flag, enableInsert;