diff --git a/ahserver/configuredServer.py b/ahserver/configuredServer.py
index bfabf4f..c7cd0a7 100644
--- a/ahserver/configuredServer.py
+++ b/ahserver/configuredServer.py
@@ -9,7 +9,7 @@ from appPublic.folderUtils import ProgramPath
 from appPublic.dictObject import DictObject
 from appPublic.jsonConfig import getConfig
 from appPublic.log import info, debug, warning, error, critical, exception
-from appPublic.registerfunction import RegisterCoroutine
+from appPublic.registerfunction import RegisterFunction
 
 from sqlor.dbpools import DBPools
 
@@ -24,7 +24,8 @@ from .real_ip import real_ip_middleware
 
 class AHApp(web.Application):
 	def __init__(self, *args, **kw):
-		kw['client_max_size'] = 1024000000
+		if not kw.get('client_max_size'):
+			kw['client_max_size'] = 1024000000
 		super().__init__(*args, **kw)
 		self.user_data = DictObject()
 		self.middlewares.insert(0, real_ip_middleware())
@@ -36,7 +37,7 @@ class AHApp(web.Application):
 		return self.user_data.get(k)
 
 class ConfiguredServer:
-	def __init__(self, auth_klass=AuthAPI, workdir=None):
+	def __init__(self, auth_klass=AuthAPI, workdir=None, app=None):
 		self.auth_klass = auth_klass
 		self.workdir = workdir
 		if self.workdir is not None:
@@ -54,13 +55,16 @@ class ConfiguredServer:
 		if config.website.client_max_size:
 			client_max_size = config.website.client_max_size
 
-		self.app = AHApp(client_max_size=client_max_size)
+		if app:
+			self.app = app
+		else:
+			self.app = AHApp(client_max_size=client_max_size)
 		load_plugins(self.workdir)
 		g = ServerEnv()
 		g.workdir = workdir
 	
 	async def build_app(self):
-		rf = RegisterCoroutine()
+		rf = RegisterFunction()
 		await rf.exe('ahapp_built', self.app)
 		auth = self.auth_klass()
 		await auth.setupAuth(self.app)
@@ -88,7 +92,7 @@ class ConfiguredServer:
 
 	def configPath(self,config):
 		for p,prefix in config.website.paths:
-			res = ProcessorResource(prefix,p,show_index=True,
+			res = ProcessorResource(prefix, p, show_index=True,
 							follow_symlinks=True,
 							indexes=config.website.indexes,
 							processors=config.website.processors)
diff --git a/ahserver/processorResource.py b/ahserver/processorResource.py
index bc10a08..6dce907 100644
--- a/ahserver/processorResource.py
+++ b/ahserver/processorResource.py
@@ -76,7 +76,7 @@ def i18nDICT(request):
 	return json.dumps(i18n.getLangDict(l)).encode(c.website.coding)
 
 class ProcessorResource(StaticResource,Url2File):
-	def __init__(self, prefix: str, directory: PathLike,
+	def __init__(self, prefix: str, directory: str,
 				 *, name: Optional[str]=None,
 				 expect_handler: Optional[_ExpectHandler]=None,
 				 chunk_size: int=256 * 1024,
@@ -84,14 +84,14 @@ class ProcessorResource(StaticResource,Url2File):
 				 append_version: bool=False,
 				 indexes:list=[],
 				 processors:dict={}) -> None:
-		StaticResource.__init__(self,prefix, directory,
+		StaticResource.__init__(self, prefix, directory,
 				 name=name,
 				 expect_handler=expect_handler,
 				 chunk_size=chunk_size,
 				 show_index=show_index, 
 				 follow_symlinks=follow_symlinks,
 				 append_version=append_version)
-		Url2File.__init__(self,directory,prefix,indexes,inherit=True)
+		Url2File.__init__(self, directory, prefix, indexes, inherit=True)
 		gr = self._routes.get('GET')
 		self._routes.update({'POST':gr})
 		self._routes.update({'PUT':gr})
diff --git a/ahserver/url2file.py b/ahserver/url2file.py
index 982cc0f..59dacc0 100644
--- a/ahserver/url2file.py
+++ b/ahserver/url2file.py
@@ -21,6 +21,19 @@ class Url2File:
 					break
 		return '/'.join(items)
 
+	def get_ospath_by_webpath(self, path:str) -> str:
+		paths = url.split('/')
+		f = os.path.join(self.rootpath, *paths)
+		if not os.path.exists(f):
+			return None
+		if os.path.isdir(f):
+			for idx in self.indexes:
+				p = os.path.join(real_path,idx)
+				if os.path.isfile(p):
+					return p
+			return None
+		return f
+
 	def url2ospath(self, url: str) -> str:
 		url = url.split('?')[0]
 		if len(url) > 0 and url[-1] == '/':
diff --git a/ahserver/webapp.py b/ahserver/webapp.py
index 7a8f625..66aa88f 100644
--- a/ahserver/webapp.py
+++ b/ahserver/webapp.py
@@ -7,16 +7,16 @@ from ahserver.configuredServer import ConfiguredServer
 from ahserver.serverenv import ServerEnv
 from appPublic.jsonConfig import getConfig
 		
-def webapp(init_func):
+def webapp(init_func, app=None):
 	parser = argparse.ArgumentParser(prog="Sage")
 	parser.add_argument('-w', '--workdir')
 	parser.add_argument('-p', '--port')
 	args = parser.parse_args()
 	workdir = args.workdir or os.getcwd()
 	port = args.port
-	webserver(init_func, workdir, port)
+	webserver(init_func, workdir, port=port, app=app)
 
-def webserver(init_func, workdir, port=None):
+def webserver(init_func, workdir, port=None, app=None):
 	p = ProgramPath()
 	config = getConfig(workdir, NS={'workdir':workdir, 'ProgramPath':p})
 	if config.logger:
@@ -29,7 +29,7 @@ def webserver(init_func, workdir, port=None):
 	se = ServerEnv()
 	se.workdir = workdir
 	se.port = port
-	server = ConfiguredServer(workdir=workdir)
+	server = ConfiguredServer(workdir=workdir, app=app)
 	port = port or config.website.port or 8080
 	port = int(port)
 	server.run(port=port)