diff --git a/index.php b/index.php
index 3034040..35b397e 100644
--- a/index.php
+++ b/index.php
@@ -1,8 +1,9 @@
 <?php 
+ini_set('user_agent', 'GeMCAPI/4.1.0 (GeMC API Sync 1.1.0;Release)');
 $active=array('mojang/launchermeta/mc/game/version_manifest.json');
 $type=array('.com');
 //[0]:mojang
-function url_exists($url) {
+function url_exists($url){
     $ch = curl_init(); 
     curl_setopt ($ch, CURLOPT_URL, $url); 
     curl_setopt($ch, CURLOPT_NOBODY, 1);
@@ -10,7 +11,7 @@ function url_exists($url) {
     curl_setopt($ch, CURLOPT_TIMEOUT, 3);
     curl_exec($ch);
     $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);  
-    if($http_code == 200) {
+    if($http_code == 200){
         return true;
     }
     return false;
@@ -46,12 +47,12 @@ function get_online_url($file,$id){
 	return $str;
 }
 function check_file_update($file,$dir,$url){
-	$time=time()-filemtime($file);
+	$time=time()-@filemtime($file);
 	if($time<86400){//检查文件是否超出过期期限（1天，86400秒）
 		echo file_get_contents($file);
 	}else{
 		if(url_exists($url.'/'.str_replace($dir,'',$file))){//防止源无法访问而损坏文件
-			if(file_get_contents($url.'/'.str_replace($dir,'',$file))==file_get_contents($file)){
+			if(file_get_contents($url.'/'.str_replace($dir,'',$file))==@file_get_contents($file)){
 				echo file_get_contents($file);
 			}else{
 				echo file_get_contents($url.'/'.str_replace($dir,'',$file));
@@ -64,6 +65,26 @@ function check_file_update($file,$dir,$url){
 		}
 	}
 }
+function check_file_update_adv($file,$url,$check_url){
+	$time=time()-@filemtime($file);
+	if($time<86400){//检查文件是否超出过期期限（1天，86400秒）
+		echo file_get_contents($file);
+	}else{
+		if(url_exists_2($check_url)){//防止源无法访问而损坏文件
+			if(file_get_contents($url)==@file_get_contents($file)){
+				echo file_get_contents($file);
+			}else{
+				echo @file_get_contents($url);
+				$jsonwrite = fopen($file, "w") or die('{"wikis":"https://gitee.com/ghink/gemcapi/wikis","code":502,"server_time":"'.date("Y-m-d h:i:s").'"}');
+				fwrite($jsonwrite,file_get_contents($url));
+				fclose($jsonwrite);
+			}
+		}else{
+			echo file_get_contents($file);
+		}
+	}
+}
+
 function download_file($url,$file,$other){//下载文件
     system('python download.py --url "'.$url.'" --file "'.$file.'" --other "'.$other.'"');
 }
@@ -82,19 +103,36 @@ if($_GET['error']!=""){
 				}
 			}
 		}else{//无需更新的文件，直接重定向
-			header('Location: http://1.gemcapi.ghink.net:10000/'.$_GET['path']);
+			if(strstr($_GET['path'],'forge/minecraft')!=False){//特殊返回目录
+				echo @file_get_contents($_GET['path']);
+			}else{
+				header('Location: http://1.gemcapi.ghink.net:10000/'.$_GET['path']);
+			}
 		}
 	}elseif(is_dir($_GET['path'])){
 		//目录存在
-		header('Location: http://1.gemcapi.ghink.net:10000/'.$_GET['path']);
+		if(strstr($_GET['path'],'forge/minecraft')!=False){//特殊目录返回
+			check_file_update_adv('forge/minecraft/index.json','https://download.mcbbs.net/forge/minecraft','https://download.mcbbs.net/maven/net/minecraftforge/forge/1.7.10-10.13.0.1151/forge-1.7.10-10.13.0.1151-installer.jar');
+		}else{
+			header('Location: http://1.gemcapi.ghink.net:10000/'.$_GET['path']);
+		}
 	}else{
 		//目录或文件不存在
 		if(strstr($_GET['path'],'forge/')!=False){//特殊Forge，采用二级源
 			if(url_exists_2('https://download.mcbbs.net/maven/net/minecraftforge/forge/1.7.10-10.13.0.1151/forge-1.7.10-10.13.0.1151-installer.jar')){
-				download_file('https://download.mcbbs.net/'.$_GET['path'],$_GET['path'],'');
-				header('Location: http://1.gemcapi.ghink.net:10000/'.$_GET['path']);
+				if(strstr($_GET['path'],'forge/minecraft')!=False){//forge/minecraft目录特殊同步
+					if($_GET['path']=='forge/minecraft'){
+						check_file_update_adv('forge/minecraft/index.json','https://download.mcbbs.net/forge/minecraft','https://download.mcbbs.net/maven/net/minecraftforge/forge/1.7.10-10.13.0.1151/forge-1.7.10-10.13.0.1151-installer.jar');
+					}else{
+						check_file_update_adv($_GET['path'],'https://download.mcbbs.net/'.$_GET['path'],'https://download.mcbbs.net/maven/net/minecraftforge/forge/1.7.10-10.13.0.1151/forge-1.7.10-10.13.0.1151-installer.jar');
+					}
+				}else{
+					download_file('https://download.mcbbs.net/'.$_GET['path'],$_GET['path'],'');
+					header('Location: http://1.gemcapi.ghink.net:10000/'.$_GET['path']);
+				}
 			}else{
 				echo '{"wikis":"https://gitee.com/ghink/gemcapi/wikis","code":404,"server_time":"'.date("Y-m-d h:i:s").'"}';
+				header('HTTP/1.1 404 Not Found');
 			}
 		}else{
 			if(get_main_domain($_GET['path'])=='mojang'){//分配顶级域名尾
@@ -105,6 +143,7 @@ if($_GET['error']!=""){
 				header('Location: http://1.gemcapi.ghink.net:10000/'.$_GET['path']);
 			}else{
 				echo '{"wikis":"https://gitee.com/ghink/gemcapi/wikis","code":404,"server_time":"'.date("Y-m-d h:i:s").'"}';
+				header('HTTP/1.1 404 Not Found');
 			}
 		}
 	}