rename web_server to api (#29)

* add front end code

* change licence

* rename web_server to API

* change name to web_server

api/hook/__init__.py

@@ -0,0 +1,57 @@
+import importlib
+
+from web_server.hook.common.parameters import SignatureParameters, AuthenticationParameters, \
+    SignatureReturn, AuthenticationReturn, PermissionReturn, ClientAuthenticationReturn, ClientAuthenticationParameters
+from web_server.settings import HOOK_MODULE, stat_logger,RetCode
+
+
+class HookManager:
+    SITE_SIGNATURE = []
+    SITE_AUTHENTICATION = []
+    CLIENT_AUTHENTICATION = []
+    PERMISSION_CHECK = []
+
+    @staticmethod
+    def init():
+        if HOOK_MODULE is not None:
+            for modules in HOOK_MODULE.values():
+                for module in modules.split(";"):
+                    try:
+                        importlib.import_module(module)
+                    except Exception as e:
+                        stat_logger.exception(e)
+
+    @staticmethod
+    def register_site_signature_hook(func):
+        HookManager.SITE_SIGNATURE.append(func)
+
+    @staticmethod
+    def register_site_authentication_hook(func):
+        HookManager.SITE_AUTHENTICATION.append(func)
+
+    @staticmethod
+    def register_client_authentication_hook(func):
+        HookManager.CLIENT_AUTHENTICATION.append(func)
+
+    @staticmethod
+    def register_permission_check_hook(func):
+        HookManager.PERMISSION_CHECK.append(func)
+
+    @staticmethod
+    def client_authentication(parm: ClientAuthenticationParameters) -> ClientAuthenticationReturn:
+        if HookManager.CLIENT_AUTHENTICATION:
+            return HookManager.CLIENT_AUTHENTICATION[0](parm)
+        return ClientAuthenticationReturn()
+
+    @staticmethod
+    def site_signature(parm: SignatureParameters) -> SignatureReturn:
+        if HookManager.SITE_SIGNATURE:
+            return HookManager.SITE_SIGNATURE[0](parm)
+        return SignatureReturn()
+
+    @staticmethod
+    def site_authentication(parm: AuthenticationParameters) -> AuthenticationReturn:
+        if HookManager.SITE_AUTHENTICATION:
+            return HookManager.SITE_AUTHENTICATION[0](parm)
+        return AuthenticationReturn()
+