diff --git a/src/handler/interfaces.cpp b/src/handler/interfaces.cpp
index d3e32b0..3a5c3ec 100644
--- a/src/handler/interfaces.cpp
+++ b/src/handler/interfaces.cpp
@@ -37,8 +37,6 @@ extern WebServer webServer;
 
 string_array gRegexBlacklist = {"(.*)*"};
 
-void refreshRulesets(RulesetConfigs &ruleset_list, std::vector<RulesetContent> &ruleset_content_array);
-
 std::string parseProxy(const std::string &source)
 {
     std::string proxy = source;
@@ -136,19 +134,18 @@ void matchUserAgent(const std::string &user_agent, std::string &target, tribool
             return;
         }
     }
-    return;
 }
 
 std::string getRuleset(RESPONSE_CALLBACK_ARGS)
 {
-    std::string &argument = request.argument;
+    auto &argument = request.argument;
     int *status_code = &response.status_code;
     /// type: 1 for Surge, 2 for Quantumult X, 3 for Clash domain rule-provider, 4 for Clash ipcidr rule-provider, 5 for Surge DOMAIN-SET, 6 for Clash classical ruleset
     std::string url = urlSafeBase64Decode(getUrlArg(argument, "url")), type = getUrlArg(argument, "type"), group = urlSafeBase64Decode(getUrlArg(argument, "group"));
     std::string output_content, dummy;
     int type_int = to_int(type, 0);
 
-    if(!url.size() || !type.size() || (type_int == 2 && !group.size()) || (type_int < 1 || type_int > 6))
+    if(url.empty() || type.empty() || (type_int == 2 && group.empty()) || (type_int < 1 || type_int > 6))
     {
         *status_code = 400;
         return "Invalid request!";
@@ -167,7 +164,7 @@ std::string getRuleset(RESPONSE_CALLBACK_ARGS)
         output_content += convertRuleset(content, x.rule_type);
     }
 
-    if(!output_content.size())
+    if(output_content.empty())
     {
         *status_code = 400;
         return "Invalid request!";
@@ -184,11 +181,11 @@ std::string getRuleset(RESPONSE_CALLBACK_ARGS)
     {
         posb = 0;
         pose = strLine.find(',');
-        if(pose == strLine.npos)
+        if(pose == std::string::npos)
             return 1;
         posb = pose + 1;
         pose = strLine.find(',', posb);
-        if(pose == strLine.npos)
+        if(pose == std::string::npos)
         {
             pose = strLine.size();
             if(strLine[pose - 1] == '\r')
@@ -215,11 +212,11 @@ std::string getRuleset(RESPONSE_CALLBACK_ARGS)
         switch(type_int)
         {
         case 2:
-            if(!std::any_of(QuanXRuleTypes.begin(), QuanXRuleTypes.end(), [&strLine](std::string type){return startsWith(strLine, type);}))
+            if(!std::any_of(QuanXRuleTypes.begin(), QuanXRuleTypes.end(), [&strLine](const std::string& type){return startsWith(strLine, type);}))
                 continue;
             break;
         case 1:
-            if(!std::any_of(SurgeRuleTypes.begin(), SurgeRuleTypes.end(), [&strLine](std::string type){return startsWith(strLine, type);}))
+            if(!std::any_of(SurgeRuleTypes.begin(), SurgeRuleTypes.end(), [&strLine](const std::string& type){return startsWith(strLine, type);}))
                 continue;
             break;
         case 3:
@@ -251,7 +248,7 @@ std::string getRuleset(RESPONSE_CALLBACK_ARGS)
             output_content += '\n';
             continue;
         case 6:
-            if(!std::any_of(ClashRuleTypes.begin(), ClashRuleTypes.end(), [&strLine](std::string type){return startsWith(strLine, type);}))
+            if(!std::any_of(ClashRuleTypes.begin(), ClashRuleTypes.end(), [&strLine](const std::string& type){return startsWith(strLine, type);}))
                 continue;
             output_content += "  - ";
         }
@@ -303,12 +300,12 @@ void checkExternalBase(const std::string &path, std::string &dest)
 
 std::string subconverter(RESPONSE_CALLBACK_ARGS)
 {
-    std::string &argument = request.argument;
+    auto &argument = request.argument;
     int *status_code = &response.status_code;
 
     std::string argTarget = getUrlArg(argument, "target"), argSurgeVer = getUrlArg(argument, "ver");
     tribool argClashNewField = getUrlArg(argument, "new_name");
-    int intSurgeVer = argSurgeVer.size() ? to_int(argSurgeVer, 3) : 3;
+    int intSurgeVer = !argSurgeVer.empty() ? to_int(argSurgeVer, 3) : 3;
     if(argTarget == "auto")
         matchUserAgent(request.headers["User-Agent"], argTarget, argClashNewField, intSurgeVer);
 
@@ -352,8 +349,8 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
     std::vector<RulesetContent> lRulesetContent;
     extra_settings ext;
     std::string subInfo, dummy;
-    int interval = argUpdateInterval.size() ? to_int(argUpdateInterval, global.updateInterval) : global.updateInterval;
-    bool authorized = !global.APIMode || getUrlArg(argument, "token") == global.accessToken, strict = argUpdateStrict.size() ? argUpdateStrict == "true" : global.updateStrict;
+    int interval = !argUpdateInterval.empty() ? to_int(argUpdateInterval, global.updateInterval) : global.updateInterval;
+    bool authorized = !global.APIMode || getUrlArg(argument, "token") == global.accessToken, strict = !argUpdateStrict.empty() ? argUpdateStrict == "true" : global.updateStrict;
 
     if(std::find(gRegexBlacklist.cbegin(), gRegexBlacklist.cend(), argIncludeRemark) != gRegexBlacklist.cend() || std::find(gRegexBlacklist.cbegin(), gRegexBlacklist.cend(), argExcludeRemark) != gRegexBlacklist.cend())
         return "Invalid request!";
@@ -365,28 +362,35 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
 
     /// validate urls
     argEnableInsert.define(global.enableInsert);
-    if(!argUrl.size() && (!global.APIMode || authorized))
+    if(argUrl.empty() && (!global.APIMode || authorized))
         argUrl = global.defaultUrls;
-    if((!argUrl.size() && !(global.insertUrls.size() && argEnableInsert)) || !argTarget.size())
+    if((argUrl.empty() && !(!global.insertUrls.empty() && argEnableInsert)) || argTarget.empty())
     {
         *status_code = 400;
         return "Invalid request!";
     }
 
     /// load request arguments as template variables
-    string_array req_args = split(argument, "&");
+//    string_array req_args = split(argument, "&");
+//    string_map req_arg_map;
+//    for(std::string &x : req_args)
+//    {
+//        string_size pos = x.find("=");
+//        if(pos == x.npos)
+//        {
+//            req_arg_map[x] = "";
+//            continue;
+//        }
+//        if(x.substr(0, pos) == "token")
+//            continue;
+//        req_arg_map[x.substr(0, pos)] = x.substr(pos + 1);
+//    }
     string_map req_arg_map;
-    for(std::string &x : req_args)
+    for (auto &x : argument)
     {
-        string_size pos = x.find("=");
-        if(pos == x.npos)
-        {
-            req_arg_map[x] = "";
+        if(x.first == "token")
             continue;
-        }
-        if(x.substr(0, pos) == "token")
-            continue;
-        req_arg_map[x.substr(0, pos)] = x.substr(pos + 1);
+        req_arg_map[x.first] = x.second;
     }
     req_arg_map["target"] = argTarget;
     req_arg_map["ver"] = std::to_string(intSurgeVer);
@@ -414,7 +418,7 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
     ext.tls13.define(argTLS13).define(global.TLS13Flag);
 
     ext.sort_flag = argSort.get(global.enableSort);
-    argUseSortScript.define(global.sortScript.size() != 0);
+    argUseSortScript.define(!global.sortScript.empty());
     if(ext.sort_flag && argUseSortScript)
         ext.sort_script = global.sortScript;
     ext.filter_deprecated = argFilterDeprecated.get(global.filterDeprecated);
@@ -428,7 +432,7 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
 
     ext.nodelist = argGenNodeList;
     ext.surge_ssr_path = global.surgeSSRPath;
-    ext.quanx_dev_id = argDeviceID.size() ? argDeviceID : global.quanXDevID;
+    ext.quanx_dev_id = !argDeviceID.empty() ? argDeviceID : global.quanXDevID;
     ext.enable_rule_generator = global.enableRuleGen;
     ext.overwrite_original_rules = global.overwriteOriginalRules;
     if(!argExpandRulesets)
@@ -437,7 +441,7 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
     /// load external configuration
     if(argExternalConfig.empty())
         argExternalConfig = global.defaultExtConfig;
-    if(argExternalConfig.size())
+    if(!argExternalConfig.empty())
     {
         //std::cerr<<"External configuration file provided. Loading...\n";
         writeLog(0, "External configuration file provided. Loading...", LOG_LEVEL_INFO);
@@ -459,21 +463,21 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
                     checkExternalBase(extconf.loon_rule_base, lLoonBase);
                     checkExternalBase(extconf.singbox_rule_base, lSingBoxBase);
 
-                    if(extconf.surge_ruleset.size())
+                    if(!extconf.surge_ruleset.empty())
                         lCustomRulesets = extconf.surge_ruleset;
-                    if(extconf.custom_proxy_group.size())
+                    if(!extconf.custom_proxy_group.empty())
                         lCustomProxyGroups = extconf.custom_proxy_group;
                     ext.enable_rule_generator = extconf.enable_rule_generator;
                     ext.overwrite_original_rules = extconf.overwrite_original_rules;
                 }
             }
-            if(extconf.rename.size())
+            if(!extconf.rename.empty())
                 ext.rename_array = extconf.rename;
-            if(extconf.emoji.size())
+            if(!extconf.emoji.empty())
                 ext.emoji_array = extconf.emoji;
-            if(extconf.include.size())
+            if(!extconf.include.empty())
                 lIncludeRemarks = extconf.include;
-            if(extconf.exclude.size())
+            if(!extconf.exclude.empty())
                 lExcludeRemarks = extconf.exclude;
             argAddEmoji.define(extconf.add_emoji);
             argRemoveEmoji.define(extconf.remove_old_emoji);
@@ -484,14 +488,14 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
         if(!lSimpleSubscription)
         {
             /// loading custom groups
-            if(argCustomGroups.size() && !ext.nodelist)
+            if(!argCustomGroups.empty() && !ext.nodelist)
             {
                 string_array vArray = split(argCustomGroups, "@");
                 lCustomProxyGroups = INIBinding::from<ProxyGroupConfig>::from_ini(vArray);
             }
 
             /// loading custom rulesets
-            if(argCustomRulesets.size() && !ext.nodelist)
+            if(!argCustomRulesets.empty() && !ext.nodelist)
             {
                 string_array vArray = split(argCustomRulesets, "@");
                 lCustomRulesets = INIBinding::from<RulesetConfig>::from_ini(vArray);
@@ -519,15 +523,15 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
     ext.remove_emoji = argRemoveEmoji.get(global.removeEmoji);
     if(ext.add_emoji && ext.emoji_array.empty())
         ext.emoji_array = safe_get_emojis();
-    if(argRenames.size())
+    if(!argRenames.empty())
         ext.rename_array = INIBinding::from<RegexMatchConfig>::from_ini(split(argRenames, "`"), "@");
     else if(ext.rename_array.empty())
         ext.rename_array = safe_get_renames();
 
     /// check custom include/exclude settings
-    if(argIncludeRemark.size() && regValid(argIncludeRemark))
+    if(!argIncludeRemark.empty() && regValid(argIncludeRemark))
         lIncludeRemarks = string_array{argIncludeRemark};
-    if(argExcludeRemark.size() && regValid(argExcludeRemark))
+    if(!argExcludeRemark.empty() && regValid(argExcludeRemark))
         lExcludeRemarks = string_array{argExcludeRemark};
 
     /// initialize script runtime
@@ -559,7 +563,7 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
     parse_set.js_runtime = ext.js_runtime;
     parse_set.js_context = ext.js_context;
 
-    if(global.insertUrls.size() && argEnableInsert)
+    if(!global.insertUrls.empty() && argEnableInsert)
     {
         groupID = -1;
         urls = split(global.insertUrls, "|");
@@ -602,12 +606,12 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
         groupID++;
     }
     //exit if found nothing
-    if(!nodes.size() && !insert_nodes.size())
+    if(nodes.empty() && insert_nodes.empty())
     {
         *status_code = 400;
         return "No nodes were found!";
     }
-    if(subInfo.size() && argAppendUserinfo.get(global.appendUserinfo))
+    if(!subInfo.empty() && argAppendUserinfo.get(global.appendUserinfo))
         response.headers.emplace("Subscription-UserInfo", subInfo);
 
     if(request.method == "HEAD")
@@ -627,7 +631,7 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
     std::string filterScript = global.filterScript;
     if(authorized && !argFilterScript.empty())
         filterScript = argFilterScript;
-    if(filterScript.size())
+    if(!filterScript.empty())
     {
         if(startsWith(filterScript, "path:"))
             filterScript = fileGet(filterScript.substr(5), false);
@@ -670,7 +674,7 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
     }
 
     //check custom group name
-    if(argGroupName.size())
+    if(!argGroupName.empty())
         for(Proxy &x : nodes)
             x.Group = argGroupName;
 
@@ -695,7 +699,7 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
     std::vector<RulesetContent> dummy_ruleset;
     std::string managed_url = base64Decode(urlDecode(getUrlArg(argument, "profile_data")));
     if(managed_url.empty())
-        managed_url = global.managedConfigPrefix + "/sub?" + argument;
+        managed_url = global.managedConfigPrefix + "/sub?" + joinArguments(argument);
 
     //std::cerr<<"Generate target: ";
     proxy = parseProxy(global.proxyConfig);
@@ -747,7 +751,7 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
             if(argUpload)
                 uploadGist("surge" + argSurgeVer, argUploadPath, output_content, true);
 
-            if(global.writeManagedConfig && global.managedConfigPrefix.size())
+            if(global.writeManagedConfig && !global.managedConfigPrefix.empty())
                 output_content = "#!MANAGED-CONFIG " + managed_url + (interval ? " interval=" + std::to_string(interval) : "") \
                  + " strict=" + std::string(strict ? "true" : "false") + "\n\n" + output_content;
         }
@@ -764,7 +768,7 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
         if(argUpload)
             uploadGist("surfboard", argUploadPath, output_content, true);
 
-        if(global.writeManagedConfig && global.managedConfigPrefix.size())
+        if(global.writeManagedConfig && !global.managedConfigPrefix.empty())
             output_content = "#!MANAGED-CONFIG " + managed_url + (interval ? " interval=" + std::to_string(interval) : "") \
                  + " strict=" + std::string(strict ? "true" : "false") + "\n\n" + output_content;
         break;
@@ -899,18 +903,18 @@ std::string subconverter(RESPONSE_CALLBACK_ARGS)
         return "Unrecognized target";
     }
     writeLog(0, "Generate completed.", LOG_LEVEL_INFO);
-    if(argFilename.size())
+    if(!argFilename.empty())
         response.headers.emplace("Content-Disposition", "attachment; filename=\"" + argFilename + "\"; filename*=utf-8''" + urlEncode(argFilename));
     return output_content;
 }
 
 std::string simpleToClashR(RESPONSE_CALLBACK_ARGS)
 {
-    std::string &argument = request.argument;
+    auto argument = joinArguments(request.argument);
     int *status_code = &response.status_code;
 
     std::string url = argument.size() <= 8 ? "" : argument.substr(8);
-    if(!url.size() || argument.substr(0, 8) != "sublink=")
+    if(url.empty() || argument.substr(0, 8) != "sublink=")
     {
         *status_code = 400;
         return "Invalid request!";
@@ -920,13 +924,14 @@ std::string simpleToClashR(RESPONSE_CALLBACK_ARGS)
         *status_code = 400;
         return "Please insert your subscription link instead of clicking the default link.";
     }
-    request.argument = "target=clashr&url=" + urlEncode(url);
+    request.argument.emplace("target", "clashr");
+    request.argument.emplace("url", urlEncode(url));
     return subconverter(request, response);
 }
 
 std::string surgeConfToClash(RESPONSE_CALLBACK_ARGS)
 {
-    std::string &argument = request.argument;
+    auto argument = joinArguments(request.argument);
     int *status_code = &response.status_code;
 
     INIReader ini;
@@ -937,9 +942,9 @@ std::string surgeConfToClash(RESPONSE_CALLBACK_ARGS)
 
     ini.store_any_line = true;
 
-    if(!url.size())
+    if(url.empty())
         url = global.defaultUrls;
-    if(!url.size() || argument.substr(0, 5) != "link=")
+    if(url.empty() || argument.substr(0, 5) != "link=")
     {
         *status_code = 400;
         return "Invalid request!";
@@ -1008,11 +1013,11 @@ std::string surgeConfToClash(RESPONSE_CALLBACK_ARGS)
         for(unsigned int i = 1; i < dummy_str_array.size(); i++)
         {
             if(startsWith(dummy_str_array[i], "url"))
-                singlegroup["url"] = trim(dummy_str_array[i].substr(dummy_str_array[i].find("=") + 1));
+                singlegroup["url"] = trim(dummy_str_array[i].substr(dummy_str_array[i].find('=') + 1));
             else if(startsWith(dummy_str_array[i], "interval"))
-                singlegroup["interval"] = trim(dummy_str_array[i].substr(dummy_str_array[i].find("=") + 1));
+                singlegroup["interval"] = trim(dummy_str_array[i].substr(dummy_str_array[i].find('=') + 1));
             else if(startsWith(dummy_str_array[i], "policy-path"))
-                links.emplace_back(trim(dummy_str_array[i].substr(dummy_str_array[i].find("=") + 1)));
+                links.emplace_back(trim(dummy_str_array[i].substr(dummy_str_array[i].find('=') + 1)));
             else
                 singlegroup["proxies"].push_back(trim(dummy_str_array[i]));
         }
@@ -1048,7 +1053,7 @@ std::string surgeConfToClash(RESPONSE_CALLBACK_ARGS)
     }
 
     //exit if found nothing
-    if(!nodes.size())
+    if(nodes.empty())
     {
         *status_code = 400;
         return "No nodes were found!";
@@ -1075,7 +1080,7 @@ std::string surgeConfToClash(RESPONSE_CALLBACK_ARGS)
         name = x.first;
         content = x.second;
         dummy_str_array = split(content, ",");
-        if(!dummy_str_array.size())
+        if(dummy_str_array.empty())
             continue;
         content = trim(dummy_str_array[0]);
         switch(hash_(content))
@@ -1112,7 +1117,7 @@ std::string surgeConfToClash(RESPONSE_CALLBACK_ARGS)
             if(strArray.size() != 3)
                 continue;
             content = webGet(strArray[1], proxy, global.cacheRuleset);
-            if(!content.size())
+            if(content.empty())
                 continue;
 
             ss << content;
@@ -1125,7 +1130,7 @@ std::string surgeConfToClash(RESPONSE_CALLBACK_ARGS)
                     strLine.erase(--lineSize);
                 if(!lineSize || strLine[0] == ';' || strLine[0] == '#' || (lineSize >= 2 && strLine[0] == '/' && strLine[1] == '/')) //empty lines and comments are ignored
                     continue;
-                else if(!std::any_of(ClashRuleTypes.begin(), ClashRuleTypes.end(), [&strLine](std::string type){return startsWith(strLine, type);})) //remove unsupported types
+                else if(!std::any_of(ClashRuleTypes.begin(), ClashRuleTypes.end(), [&strLine](const std::string& type){return startsWith(strLine, type);})) //remove unsupported types
                     continue;
                 strLine += strArray[2];
                 if(count_least(strLine, ',', 3))
@@ -1135,7 +1140,7 @@ std::string surgeConfToClash(RESPONSE_CALLBACK_ARGS)
             ss.clear();
             continue;
         }
-        else if(!std::any_of(ClashRuleTypes.begin(), ClashRuleTypes.end(), [&strLine](std::string type){return startsWith(strLine, type);}))
+        else if(!std::any_of(ClashRuleTypes.begin(), ClashRuleTypes.end(), [&strLine](const std::string& type){return startsWith(strLine, type);}))
             continue;
         rule.push_back(x);
     }
@@ -1148,7 +1153,7 @@ std::string surgeConfToClash(RESPONSE_CALLBACK_ARGS)
 
 std::string getProfile(RESPONSE_CALLBACK_ARGS)
 {
-    std::string &argument = request.argument;
+    auto &argument = request.argument;
     int *status_code = &response.status_code;
 
     std::string name = urlDecode(getUrlArg(argument, "name")), token = urlDecode(getUrlArg(argument, "token"));
@@ -1164,7 +1169,8 @@ std::string getProfile(RESPONSE_CALLBACK_ARGS)
     {
         profile_content = vfs::vfs_get(name);
     }
-    else */if(fileExist(name))
+    else */
+    if(fileExist(name))
     {
         profile_content = fileGet(name, true);
     }
@@ -1187,7 +1193,7 @@ std::string getProfile(RESPONSE_CALLBACK_ARGS)
     writeLog(0, "Trying to parse profile '" + name + "'.", LOG_LEVEL_INFO);
     string_multimap contents;
     ini.get_items("Profile", contents);
-    if(!contents.size())
+    if(contents.empty())
     {
         //std::cerr<<"Load profile failed! Reason: Empty Profile section\n";
         writeLog(0, "Load profile failed! Reason: Empty Profile section", LOG_LEVEL_ERROR);
@@ -1234,7 +1240,7 @@ std::string getProfile(RESPONSE_CALLBACK_ARGS)
                 continue;
             }
             url = ini.get("Profile", "url");
-            if(url.size())
+            if(!url.empty())
             {
                 all_urls += "|" + url;
                 writeLog(0, "Profile url from '" + name + "' added.", LOG_LEVEL_INFO);
@@ -1248,10 +1254,8 @@ std::string getProfile(RESPONSE_CALLBACK_ARGS)
     }
 
     contents.emplace("token", token);
-    contents.emplace("profile_data", base64Encode(global.managedConfigPrefix + "/getprofile?" + argument));
-    std::string query = std::accumulate(contents.begin(), contents.end(), std::string(), [](const std::string &x, auto y){ return x + y.first + "=" + urlEncode(y.second) + "&"; });
-    query += argument;
-    request.argument = query;
+    contents.emplace("profile_data", base64Encode(global.managedConfigPrefix + "/getprofile?" + joinArguments(argument)));
+    request.argument = argument;
     return subconverter(request, response);
 }
 
@@ -1276,7 +1280,7 @@ inline std::string intToStream(unsigned long long stream)
         streamval /= 1024.0;
     }
     snprintf(chrs, 15, "%.2f %cB", streamval, units[level]);
-    return std::string(chrs);
+    return {chrs};
 }
 
 std::string subInfoToMessage(std::string subinfo)
@@ -1286,7 +1290,7 @@ std::string subInfoToMessage(std::string subinfo)
     std::string retdata, useddata = "N/A", totaldata = "N/A", expirydata = "N/A";
     std::string upload = getUrlArg(subinfo, "upload"), download = getUrlArg(subinfo, "download"), total = getUrlArg(subinfo, "total"), expire = getUrlArg(subinfo, "expire");
     ull used = to_number<ull>(upload, 0) + to_number<ull>(download, 0), tot = to_number<ull>(total, 0);
-    time_t expiry = to_number<time_t>(expire, 0);
+    auto expiry = to_number<time_t>(expire, 0);
     if(used != 0)
         useddata = intToStream(used);
     if(tot != 0)
@@ -1309,7 +1313,7 @@ int simpleGenerator()
 {
     //std::cerr<<"\nReading generator configuration...\n";
     writeLog(0, "Reading generator configuration...", LOG_LEVEL_INFO);
-    std::string config = fileGet("generate.ini"), path, profile, arguments, content;
+    std::string config = fileGet("generate.ini"), path, profile, content;
     if(config.empty())
     {
         //std::cerr<<"Generator configuration not found or empty!\n";
@@ -1328,7 +1332,7 @@ int simpleGenerator()
     writeLog(0, "Read generator configuration completed.\n", LOG_LEVEL_INFO);
 
     string_array sections = ini.get_section_names();
-    if(global.generateProfiles.size())
+    if(!global.generateProfiles.empty())
     {
         //std::cerr<<"Generating with specific artifacts: \""<<gen_profile<<"\"...\n";
         writeLog(0, "Generating with specific artifacts: \"" + global.generateProfiles + "\"...", LOG_LEVEL_INFO);
@@ -1358,7 +1362,6 @@ int simpleGenerator()
     Response response;
     for(std::string &x : sections)
     {
-        arguments.clear();
         response.status_code = 200;
         //std::cerr<<"Generating artifact '"<<x<<"'...\n";
         writeLog(0, "Generating artifact '" + x + "'...", LOG_LEVEL_INFO);
@@ -1374,12 +1377,14 @@ int simpleGenerator()
         if(ini.item_exist("profile"))
         {
             profile = ini.get("profile");
-            request.argument = "name=" + urlEncode(profile) + "&token=" + global.accessToken + "&expand=true";
+            request.argument.emplace("name", urlEncode(profile));
+            request.argument.emplace("token", global.accessToken);
+            request.argument.emplace("expand", "true");
             content = getProfile(request, response);
         }
         else
         {
-            if(ini.get_bool("direct") == true)
+            if(ini.get_bool("direct"))
             {
                 std::string url = ini.get("url");
                 content = fetchFile(url, proxy, global.cacheSubscription);
@@ -1400,10 +1405,8 @@ int simpleGenerator()
             {
                 if(y.first == "path")
                     continue;
-                arguments += y.first + "=" + urlEncode(y.second) + "&";
+                request.argument.emplace(y.first, y.second);
             }
-            arguments.erase(arguments.size() - 1);
-            request.argument = arguments;
             content = subconverter(request, response);
         }
         if(response.status_code != 200)
@@ -1429,7 +1432,7 @@ int simpleGenerator()
 
 std::string renderTemplate(RESPONSE_CALLBACK_ARGS)
 {
-    std::string &argument = request.argument;
+    auto &argument = request.argument;
     int *status_code = &response.status_code;
 
     std::string path = urlDecode(getUrlArg(argument, "path"));
@@ -1450,16 +1453,10 @@ std::string renderTemplate(RESPONSE_CALLBACK_ARGS)
     tpl_args.global_vars = global.templateVars;
 
     //load request arguments as template variables
-    string_array req_args = split(argument, "&");
-    string_size pos;
     string_map req_arg_map;
-    for(std::string &x : req_args)
+    for (auto &x : argument)
     {
-        pos = x.find("=");
-        if(pos == x.npos)
-            req_arg_map[x] = "";
-        else
-            req_arg_map[x.substr(0, pos)] = x.substr(pos + 1);
+        req_arg_map[x.first] = x.second;
     }
     tpl_args.request_params = req_arg_map;
 
diff --git a/src/script/cron.cpp b/src/script/cron.cpp
index 6b10186..8790a69 100644
--- a/src/script/cron.cpp
+++ b/src/script/cron.cpp
@@ -73,7 +73,7 @@ void refresh_schedule()
 
 std::string list_cron_schedule(RESPONSE_CALLBACK_ARGS)
 {
-    std::string &argument = request.argument;
+    auto &argument = request.argument;
     std::string token = getUrlArg(argument, "token");
     rapidjson::StringBuffer sb;
     rapidjson::Writer<rapidjson::StringBuffer> writer(sb);
diff --git a/src/script/script_quickjs.cpp b/src/script/script_quickjs.cpp
index 438adfa..a6e6327 100644
--- a/src/script/script_quickjs.cpp
+++ b/src/script/script_quickjs.cpp
@@ -377,6 +377,11 @@ static qjs_fetch_Response qjs_fetch(qjs_fetch_Request request)
     return response;
 }
 
+static std::string qjs_getUrlArg(const std::string &url, const std::string &request)
+{
+    return getUrlArg(url, request);
+}
+
 std::string getGeoIP(const std::string &address, const std::string &proxy)
 {
     return fetchFile("https://api.ip.sb/geoip/" + address, parseProxy(proxy), global.cacheConfig);
@@ -506,7 +511,7 @@ int script_context_init(qjs::Context &context)
             .add<&currentTime>("time")
             .add<&sleepMs>("sleep")
             .add<&ShowMsgbox>("msgbox")
-            .add<&getUrlArg>("getUrlArg")
+            .add<&qjs_getUrlArg>("getUrlArg")
             .add<&fileGet>("fileGet")
             .add<&fileWrite>("fileWrite");
         context.eval(R"(
diff --git a/src/server/webserver.cpp b/src/server/webserver.cpp
deleted file mode 100644
index cbba000..0000000
--- a/src/server/webserver.cpp
+++ /dev/null
@@ -1,372 +0,0 @@
-#include <iostream>
-#include <fstream>
-#include <map>
-#include <atomic>
-#include <thread>
-#include <pthread.h>
-
-#include "../utils/file.h"
-#include "../utils/string.h"
-#include "../utils/system.h"
-#include "socket.h"
-#include "webserver.h"
-
-using string_array = std::vector<std::string>;
-int def_timeout = 5;
-
-struct responseRoute
-{
-    std::string method;
-    std::string path;
-    std::string content_type;
-    response_callback rc;
-};
-
-std::vector<responseRoute> responses;
-
-//for use of multi-thread
-int max_send_failure = 10;
-std::atomic_bool SERVER_EXIT_FLAG(false);
-std::atomic_int working_thread(0);
-
-int sendall(SOCKET sock, std::string data)
-{
-    unsigned int total = 0, bytesleft = data.size();
-    int sent = 0;
-    const char* datastr = data.data();
-    while(total < bytesleft)
-    {
-        sent = send(sock, datastr + total, bytesleft, 0);
-        if(sent < 0)
-        {
-            std::cerr<<strerror(errno)<<std::endl;
-            if(errno == EINTR || errno == EWOULDBLOCK || errno == EAGAIN)
-            {
-                continue;
-            }
-            else
-            {
-                break;
-            }
-        }
-        total += sent;
-        bytesleft -= sent;
-    }
-    return sent == -1 ? -1 : 0;
-}
-
-void wrong_req(SOCKET sock)
-{
-    std::string response = "HTTP/1.1 501 Not Implemented\r\n"
-                           "Access-Control-Allow-Origin: *\r\nAccess-Control-Allow-Headers: *\r\n"
-                           "Content-Type: text/plain\r\n\r\n"
-                           "The command is not yet completed\r\n";
-
-    if (sendall(sock, response) == -1)
-    {
-        std::cerr << "Sending failed!" << std::endl;
-    }
-}
-
-void file_not_found(std::string arguments, int sock)
-{
-    std::string prompt_info = "Not found:  " + arguments;
-    std::string response = "HTTP/1.1 404 Not Found\r\n"
-                           "Content-Type: text/plain\r\nConnection: close\r\n"
-                           "Access-Control-Allow-Origin: *\r\nAccess-Control-Allow-Headers: *\r\n"
-                           "Content-Length: " + std::to_string(prompt_info.size()) + "\r\n\r\n" + prompt_info + "\r\n";
-
-    if (sendall(sock, response) == -1)
-    {
-        printf("Sending error!");
-        return;
-    }
-}
-
-void send_header(SOCKET send_to, std::string content_type)
-{
-    std::string header = "HTTP/1.1 200 OK\r\nConnection: close\r\nCache-Control: no-cache, no-store, must-revalidate\r\nAccess-Control-Allow-Origin: *\r\n";
-    if(content_type.size())
-        header += "Content-Type: " + content_type + "\r\n";
-    if(sendall(send_to, header) == -1)
-    {
-        printf("Sending error!");
-    }
-}
-
-void send_options_header(SOCKET send_to)
-{
-    std::string header = "HTTP/1.1 200 OK\r\nAccess-Control-Allow-Origin: *\r\nAccess-Control-Allow-Headers: *\r\n";
-    if(sendall(send_to, header) == -1)
-    {
-        printf("Sending error!");
-    }
-}
-
-char* file_type(const char* arg)
-{
-    char * temp;
-    if ((temp=strrchr(arg,'.')) != NULL)
-    {
-        return temp+1;
-    }
-    return nullptr;
-}
-
-void serve_options(SOCKET sock)
-{
-    send_options_header(sock);
-    std::string extra_header = "Content-Length: 0\r\n\r\n";
-    sendall(sock, extra_header);
-    sendall(sock, "\r\n\r\n");
-}
-
-void serve_content(SOCKET sock, std::string type, std::string content)
-{
-    send_header(sock, type.data());
-    std::string extra_header = "Content-Length: " + std::to_string(content.size()) + "\r\n";
-    sendall(sock, extra_header);
-    send(sock, "\r\n", 2, 0);
-    if (sendall(sock, content) == -1)
-    {
-        printf("Sending error!");
-    }
-    sendall(sock, "\r\n\r\n");
-}
-
-void send_file(std::string arguments, int sock)
-{
-    char* extension = file_type(arguments.data());
-    std::string content_type = "text/plain", data;
-    char sizestr[16] = {};
-    int len;
-
-    if (strcmp(extension, "html") == 0)
-    {
-        content_type = "text/html";
-    }
-    if (strcmp(extension, "gif") == 0)
-    {
-        content_type = "image/gif";
-    }
-    if (strcmp(extension, "jpg") == 0)
-    {
-        content_type = "image/jpg";
-    }
-
-    send_header(sock, content_type);
-    sendall(sock, "Transfer-Encoding: chunked\r\n\r\n");
-    data = fileGet(arguments);
-    len = data.size();
-    sprintf(sizestr, "%x\r\n", len);
-    if (sendall(sock, sizestr) == -1)
-    {
-        printf("Sending error!");
-    }
-    if (sendall(sock, data) == -1)
-    {
-        printf("Sending error!");
-    }
-    len = 2;
-    sendall(sock, "\r\n");
-
-    len = 7;
-    sendall(sock, "0\r\n\r\n");
-}
-
-int setTimeout(SOCKET s, int timeout)
-{
-    int ret = -1;
-#ifdef _WIN32
-    ret = setsockopt(s, SOL_SOCKET, SO_SNDTIMEO, (char*)&timeout, sizeof(int));
-    ret = setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, (char*)&timeout, sizeof(int));
-#else
-    struct timeval timeo = {timeout / 1000, (timeout % 1000) * 1000};
-    ret = setsockopt(s, SOL_SOCKET, SO_SNDTIMEO, (const char*)&timeo, sizeof(timeo));
-    ret = setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeo, sizeof(timeo));
-#endif
-    def_timeout = timeout;
-    return ret;
-}
-
-void handle_req(std::string request, int client_sock)
-{
-    working_thread++;
-    std::cerr<<"worker startup"<<std::endl;
-    string_array vArray;
-    char command[16] = {};
-    char arguments[BUFSIZ] = {};
-    std::string uri, args, target, postdata;
-
-    if (sscanf(request.data(), "%s%s", command, arguments) != 2)
-    {
-        goto end;
-    }
-
-    std::cerr<<"handle_cmd:    "<<command<<"\n"<<"handle_path:   "<<arguments<<"\n";
-
-    vArray = split(arguments, "?");
-
-    if(vArray.size() > 2)
-    {
-        wrong_req(client_sock);
-        goto end;
-    }
-    else if(vArray.size() > 1)
-    {
-        uri = vArray[0];
-        args = vArray[1];
-    }
-    else
-        uri = arguments;
-
-    if(strcmp(command, "POST") == 0)
-    {
-        if(request.find("\r\n\r\n") != request.npos)
-            postdata = request.substr(request.find("\r\n\r\n") + 4);
-    }
-    else if(strcmp(command, "OPTIONS") == 0)
-    {
-        serve_options(client_sock);
-        goto end;
-    }
-
-    for(std::vector<responseRoute>::iterator iter = responses.begin(); iter != responses.end(); ++iter)
-    {
-        if(iter->method.compare(command) == 0 && iter->path == uri)
-        {
-            response_callback &rc = iter->rc;
-            serve_content(client_sock, iter->content_type, rc(args, postdata));
-            goto end;
-        }
-    }
-    file_not_found(uri, client_sock);
-
-end:
-    std::cerr<<"worker stop"<<std::endl;
-    sleepMs(1);
-    closesocket(client_sock);
-    working_thread--;
-}
-
-void append_response(const std::string &type, const std::string &request, const std::string &content_type, response_callback response)
-{
-    responseRoute rr;
-    rr.method = type;
-    rr.path = request;
-    rr.content_type = content_type;
-    rr.rc = response;
-    responses.push_back(std::move(rr));
-}
-
-void stop_web_server()
-{
-    SERVER_EXIT_FLAG = true;
-}
-
-int start_web_server(void *argv)
-{
-    struct listener_args *args = (listener_args*)argv;
-    args->max_workers = 1;
-    return start_web_server_multi(args);
-}
-
-int start_web_server_multi(void *argv)
-{
-    //log startup
-    struct listener_args *args = (listener_args*)argv;
-    std::string listen_address = args->listen_address, request;
-    int port = args->port, max_conn = args->max_conn, max_workers = args->max_workers, numbytes, worker_index = 0;
-    socklen_t sock_size = sizeof(struct sockaddr_in);
-    char buf[BUFSIZ];
-    struct sockaddr_in user_socket, server_addr;
-    SOCKET acc_socket;
-    int server_socket, fail_counter = 0;
-    server_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_IP);
-    std::thread workers[max_workers];
-
-    if (server_socket == -1)
-    {
-        //log socket error
-        std::cerr<<"socket build error!"<<std::endl;
-        return 0;
-    }
-
-    ZeroMemory(&server_addr, sizeof(server_addr));
-    server_addr.sin_family = AF_INET;
-    server_addr.sin_port = htons((short)port);
-    server_addr.sin_addr.s_addr = inet_addr(listen_address.data());
-    if (::bind(server_socket, (struct sockaddr *)&server_addr, sizeof(server_addr)) == -1)
-    {
-        //log bind error
-        std::cerr<<"socket bind error!"<<std::endl;
-        closesocket(server_socket);
-        return 0;
-    }
-    if (listen(server_socket, max_conn) == -1 )
-    {
-        //log listen error
-        std::cerr<<"socket listen error!"<<std::endl;
-        closesocket(server_socket);
-        return 0;
-    }
-    setTimeout(server_socket, 500);
-
-    while(true)
-    {
-        acc_socket = accept(server_socket, (struct sockaddr *)&user_socket, &sock_size); //wait for connection
-        if(acc_socket < 0)
-        {
-            if(errno == EINTR || errno == EWOULDBLOCK || errno == EAGAIN)
-            {
-                fail_counter++;
-                if(fail_counter > max_send_failure)
-                    break;
-                continue;
-            }
-            else
-            {
-                break;
-            }
-        }
-        request = "";
-        while(true) //receive the complete request
-        {
-            numbytes = recv(acc_socket, buf, BUFSIZ - 1, 0);
-            if(numbytes > 0) //received
-                request.append(buf);
-            if(numbytes < 0)
-            {
-                if(errno == EINTR || errno == EWOULDBLOCK || errno == EAGAIN)
-                {
-                    continue;
-                }
-                else
-                {
-                    break;
-                }
-            }
-            if(numbytes == 0)
-                break;
-        }
-
-        //handle_req(buf, acc_socket);
-
-        while(working_thread >= max_workers)
-        {
-            sleepMs(10);
-            if(SERVER_EXIT_FLAG)
-                break;
-        }
-        while(workers[worker_index].get_id() != std::thread::id())
-        {
-            worker_index++;
-        }
-        workers[worker_index] = std::thread(handle_req, request, acc_socket);
-        workers[worker_index].detach();
-        worker_index++;
-        if(worker_index > max_workers)
-            worker_index = 0;
-    }
-    return 0;
-}
diff --git a/src/server/webserver.h b/src/server/webserver.h
index 952945e..e36b8c4 100644
--- a/src/server/webserver.h
+++ b/src/server/webserver.h
@@ -14,7 +14,7 @@ struct Request
 {
     std::string method;
     std::string url;
-    std::string argument;
+    string_multimap argument;
     string_icase_map headers;
     std::string postdata;
 };
@@ -45,7 +45,7 @@ struct responseRoute
     std::string method;
     std::string path;
     std::string content_type;
-    response_callback rc;
+    response_callback rc {};
 };
 
 class WebServer
@@ -62,13 +62,31 @@ public:
     bool require_auth = false;
     std::string auth_user, auth_password, auth_realm = "Please enter username and password:";
 
-    void append_response(const std::string &method, const std::string &uri, const std::string &content_type, response_callback response);
-    void append_redirect(const std::string &uri, const std::string &target);
-    void reset_redirect();
-    int start_web_server(void *argv);
-    int start_web_server_multi(void *argv);
     void stop_web_server();
 
+    void append_response(const std::string &method, const std::string &uri, const std::string &content_type, response_callback response)
+    {
+        responseRoute rr;
+        rr.method = method;
+        rr.path = uri;
+        rr.content_type = content_type;
+        rr.rc = response;
+        responses.emplace_back(std::move(rr));
+    }
+
+    void append_redirect(const std::string &uri, const std::string &target)
+    {
+        redirect_map[uri] = target;
+    }
+
+    void reset_redirect()
+    {
+        std::map<std::string, std::string>().swap(redirect_map);
+    }
+
+    int start_web_server(listener_args *args);
+    int start_web_server_multi(listener_args *args);
+
     std::vector<responseRoute> responses;
     string_map redirect_map;
 };
diff --git a/src/server/webserver_httplib.cpp b/src/server/webserver_httplib.cpp
index ce32017..e8450d9 100644
--- a/src/server/webserver_httplib.cpp
+++ b/src/server/webserver_httplib.cpp
@@ -2,6 +2,7 @@
 #ifdef MALLOC_TRIM
 #include <malloc.h>
 #endif // MALLOC_TRIM
+#define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 16384
 #include "httplib.h"
 
 #include "../utils/base64/base64.h"
@@ -11,11 +12,6 @@
 #include "../utils/urlencode.h"
 #include "webserver.h"
 
-int WebServer::start_web_server(void *argv)
-{
-    return start_web_server_multi(argv);
-}
-
 void WebServer::stop_web_server()
 {
     SERVER_EXIT_FLAG = true;
@@ -33,11 +29,7 @@ static httplib::Server::Handler makeHandler(const responseRoute &rr)
         {
             req.headers[h.first] = h.second;
         }
-        for (auto &p: request.params)
-        {
-            req.argument += p.first + "=" + p.second + "&";
-        }
-        req.argument.pop_back();
+        req.argument = request.params;
         req.postdata = request.body;
         if (request.get_header_value("Content-Type") == "application/x-www-form-urlencoded")
         {
@@ -57,10 +49,9 @@ static httplib::Server::Handler makeHandler(const responseRoute &rr)
     };
 }
 
-int WebServer::start_web_server_multi(void *argv)
+int WebServer::start_web_server_multi(listener_args *args)
 {
     httplib::Server server;
-    auto *args = (listener_args *)argv;
     for (auto &x : responses)
     {
         switch (hash_(x.method))
@@ -104,7 +95,7 @@ int WebServer::start_web_server_multi(void *argv)
         std::string params;
         for (auto &p: req.params)
         {
-            params += p.first + "=" + p.second + "&";
+            params += p.first + "=" + urlEncode(p.second) + "&";
         }
         if (!params.empty())
         {
@@ -201,23 +192,7 @@ int WebServer::start_web_server_multi(void *argv)
     return 0;
 }
 
-void WebServer::append_response(const std::string &method, const std::string &uri, const std::string &content_type, response_callback response)
+int WebServer::start_web_server(listener_args *args)
 {
-    responseRoute rr;
-    rr.method = method;
-    rr.path = uri;
-    rr.content_type = content_type;
-    rr.rc = response;
-    responses.emplace_back(std::move(rr));
+    return start_web_server_multi(args);
 }
-
-void WebServer::append_redirect(const std::string &uri, const std::string &target)
-{
-    redirect_map[uri] = target;
-}
-
-void WebServer::reset_redirect()
-{
-    eraseElements(redirect_map);
-}
-
diff --git a/src/server/webserver_libevent.cpp b/src/server/webserver_libevent.cpp
index 8ed3315..0d74639 100644
--- a/src/server/webserver_libevent.cpp
+++ b/src/server/webserver_libevent.cpp
@@ -112,14 +112,22 @@ static inline void buffer_cleanup(struct evbuffer *eb)
 #endif // MALLOC_TRIM
 }
 
-inline int process_request(WebServer *server, Request &request, Response &response, std::string &return_data)
+static int process_request(WebServer *server, Request &request, Response &response, std::string &return_data)
 {
     writeLog(0, "handle_cmd:    " + request.method + " handle_uri:    " + request.url, LOG_LEVEL_VERBOSE);
 
     string_size pos = request.url.find('?');
     if(pos != std::string::npos)
     {
-        request.argument = request.url.substr(pos + 1);
+        auto argument = split(request.url.substr(pos + 1), "&");
+        for(auto &x : argument)
+        {
+            string_size pos2 = x.find('=');
+            if(pos2 != std::string::npos)
+                request.argument.emplace(x.substr(0, pos2), x.substr(pos2 + 1));
+            else
+                request.argument.emplace(x, "");
+        }
         request.url.erase(pos);
     }
 
@@ -143,7 +151,7 @@ inline int process_request(WebServer *server, Request &request, Response &respon
             }
             catch(std::exception &e)
             {
-                return_data = "Internal server error while processing request path '" + request.url + "' with arguments '" + request.argument + "'!";
+                return_data = "Internal server error while processing request path '" + request.url + "' with arguments '" + joinArguments(request.argument) + "'!";
                 return_data += "\n  exception: ";
                 return_data += type(e);
                 return_data += "\n  what(): ";
@@ -163,9 +171,9 @@ inline int process_request(WebServer *server, Request &request, Response &respon
         if(!request.argument.empty())
         {
             if(return_data.find('?') != std::string::npos)
-                return_data += "&" + request.argument;
+                return_data += "&" + joinArguments(request.argument);
             else
-                return_data += "?" + request.argument;
+                return_data += "?" + joinArguments(request.argument);
         }
         return 2;
     }
@@ -179,7 +187,7 @@ inline int process_request(WebServer *server, Request &request, Response &respon
     return -1;
 }
 
-void on_request(evhttp_request *req, void *args)
+static void on_request(evhttp_request *req, void *args)
 {
     auto server = (WebServer*) args;
     static std::string auth_token = "Basic " + base64Encode(server->auth_user + ":" + server->auth_password);
@@ -293,9 +301,8 @@ void on_request(evhttp_request *req, void *args)
     buffer_cleanup(output_buffer);
 }
 
-int WebServer::start_web_server(void *argv)
+int WebServer::start_web_server(listener_args *args)
 {
-    auto *args = reinterpret_cast<listener_args*>(argv);
     std::string listen_address = args->listen_address;
     int port = args->port;
     if (!event_init())
@@ -314,10 +321,8 @@ int WebServer::start_web_server(void *argv)
         return -1;
     }
 
-    auto call_on_request = [&](evhttp_request *req, void *args) { on_request(req, args); };
-
     evhttp_set_allowed_methods(server.get(), EVHTTP_REQ_GET | EVHTTP_REQ_POST | EVHTTP_REQ_OPTIONS | EVHTTP_REQ_PUT | EVHTTP_REQ_PATCH | EVHTTP_REQ_DELETE | EVHTTP_REQ_HEAD);
-    evhttp_set_gencb(server.get(), wrap(call_on_request), this);
+    evhttp_set_gencb(server.get(), on_request, this);
     evhttp_set_timeout(server.get(), 30);
     if (event_dispatch() == -1)
     {
@@ -329,14 +334,14 @@ int WebServer::start_web_server(void *argv)
     return 0;
 }
 
-void* httpserver_dispatch(void *arg)
+static void* httpserver_dispatch(void *arg)
 {
     event_base_dispatch(reinterpret_cast<event_base*>(arg));
     event_base_free(reinterpret_cast<event_base*>(arg)); //free resources
     return nullptr;
 }
 
-int httpserver_bindsocket(std::string listen_address, int listen_port, int backlog)
+static int httpserver_bindsocket(std::string listen_address, int listen_port, int backlog)
 {
     SOCKET nfd;
     nfd = socket(AF_INET, SOCK_STREAM, 0);
@@ -375,9 +380,8 @@ int httpserver_bindsocket(std::string listen_address, int listen_port, int backl
     return nfd;
 }
 
-int WebServer::start_web_server_multi(void *argv)
+int WebServer::start_web_server_multi(listener_args *args)
 {
-    auto *args = reinterpret_cast<listener_args*>(argv);
     std::string listen_address = args->listen_address;
     int port = args->port, nthreads = args->max_workers, max_conn = args->max_conn;
 
@@ -426,23 +430,3 @@ void WebServer::stop_web_server()
 {
     SERVER_EXIT_FLAG = true;
 }
-
-void WebServer::append_response(const std::string &method, const std::string &uri, const std::string &content_type, response_callback response)
-{
-    responseRoute rr;
-    rr.method = method;
-    rr.path = uri;
-    rr.content_type = content_type;
-    rr.rc = response;
-    responses.emplace_back(std::move(rr));
-}
-
-void WebServer::append_redirect(const std::string &uri, const std::string &target)
-{
-    redirect_map[uri] = target;
-}
-
-void WebServer::reset_redirect()
-{
-    eraseElements(redirect_map);
-}
diff --git a/src/utils/ini_reader/ini_reader.h b/src/utils/ini_reader/ini_reader.h
index bb76a15..7f9b492 100644
--- a/src/utils/ini_reader/ini_reader.h
+++ b/src/utils/ini_reader/ini_reader.h
@@ -21,13 +21,12 @@ enum
     INIREADER_EXCEPTION_NONE
 };
 
-using ini_data_struct = std::map<std::string, std::multimap<std::string, std::string>>;
-using string_multimap = std::multimap<std::string, std::string>;
-using string_array = std::vector<std::string>;
-using string_size = std::string::size_type;
-
 class INIReader
 {
+    using ini_data_struct = std::map<std::string, std::multimap<std::string, std::string>>;
+    using string_multimap = std::multimap<std::string, std::string>;
+    using string_array = std::vector<std::string>;
+    using string_size = std::string::size_type;
     /**
     *  @brief A simple INI reader which utilize map and vector
     *  to store sections and items, allowing access in logarithmic time.
diff --git a/src/utils/string.cpp b/src/utils/string.cpp
index 897edc8..667279c 100644
--- a/src/utils/string.cpp
+++ b/src/utils/string.cpp
@@ -7,6 +7,7 @@
 #include <time.h>
 
 #include "string.h"
+#include "map_extra.h"
 
 std::vector<std::string> split(const std::string &s, const std::string &seperator)
 {
@@ -298,6 +299,14 @@ std::string getUrlArg(const std::string &url, const std::string &request)
     return "";
 }
 
+std::string getUrlArg(const string_multimap &url, const std::string &request)
+{
+    auto it = url.find(request);
+    if(it != url.end())
+        return it->second;
+    return "";
+}
+
 std::string replaceAllDistinct(std::string str, const std::string &old_value, const std::string &new_value)
 {
     for(std::string::size_type pos(0); pos != std::string::npos; pos += new_value.length())
diff --git a/src/utils/string.h b/src/utils/string.h
index 1a42487..b376dcc 100644
--- a/src/utils/string.h
+++ b/src/utils/string.h
@@ -11,6 +11,7 @@ using string = std::string;
 using string_size = std::string::size_type;
 using string_array = std::vector<std::string>;
 using string_map = std::map<std::string, std::string>;
+using string_multimap = std::multimap<std::string, std::string>;
 using string_pair_array = std::vector<std::pair<std::string, std::string>>;
 
 std::vector<std::string> split(const std::string &s, const std::string &seperator);
@@ -27,6 +28,7 @@ std::string join(InputIt first, InputIt last, const std::string &delimiter)
 }
 
 std::string getUrlArg(const std::string &url, const std::string &request);
+std::string getUrlArg(const string_multimap &url, const std::string &request);
 std::string replaceAllDistinct(std::string str, const std::string &old_value, const std::string &new_value);
 std::string trimOf(const std::string& str, char target, bool before = true, bool after = true);
 std::string trim(const std::string& str, bool before = true, bool after = true);
diff --git a/src/utils/urlencode.cpp b/src/utils/urlencode.cpp
index 57c0a80..16e132e 100644
--- a/src/utils/urlencode.cpp
+++ b/src/utils/urlencode.cpp
@@ -69,3 +69,17 @@ std::string urlDecode(const std::string& str)
     }
     return strTemp;
 }
+
+std::string joinArguments(const string_multimap &args)
+{
+    std::string strTemp;
+    for (auto &p: args)
+    {
+        strTemp += p.first + "=" + urlEncode(p.second) + "&";
+    }
+    if (!strTemp.empty())
+    {
+        strTemp.pop_back();
+    }
+    return strTemp;
+}
diff --git a/src/utils/urlencode.h b/src/utils/urlencode.h
index 771ebae..0a21c17 100644
--- a/src/utils/urlencode.h
+++ b/src/utils/urlencode.h
@@ -3,7 +3,10 @@
 
 #include <string>
 
+#include "utils/string.h"
+
 std::string urlEncode(const std::string& str);
 std::string urlDecode(const std::string& str);
+std::string joinArguments(const string_multimap &args);
 
 #endif // URLENCODE_H_INCLUDED