Add functions to split read and write permissions.

django_etebase/app_settings.py

@@ -33,14 +33,36 @@ class AppSettings:
 
     @cached_property
     def API_PERMISSIONS(self):  # pylint: disable=invalid-name
+        """
+        Deprecated. Do not use.
+        """
         perms = self._setting("API_PERMISSIONS", ("rest_framework.permissions.IsAuthenticated",))
         ret = []
         for perm in perms:
             ret.append(self.import_from_str(perm))
         return ret
 
+    @cached_property
+    def API_PERMISSIONS_READ(self):  # pylint: disable=invalid-name
+        perms = self._setting("API_PERMISSIONS_READ", tuple())
+        ret = []
+        for perm in perms:
+            ret.append(self.import_from_str(perm))
+        return ret
+
+    @cached_property
+    def API_PERMISSIONS_WRITE(self):  # pylint: disable=invalid-name
+        perms = self._setting("API_PERMISSIONS_WRITE", tuple())
+        ret = []
+        for perm in perms:
+            ret.append(self.import_from_str(perm))
+        return ret
+
     @cached_property
     def API_AUTHENTICATORS(self):  # pylint: disable=invalid-name
+        """
+        Deprecated. Do not use.
+        """
         perms = self._setting(
             "API_AUTHENTICATORS",
             (