polish structure, update requirements

[hublib] / hub / app.py

diff --git a/hub/app.py b/hub/app.py
index 2a0a712f515c6984a53f56ff562094c14433508d..22a7cd481a6db610c1f1417fe2abd093c6887d78 100644 (file)
--- a/hub/app.py
+++ b/hub/app.py
@@ -1,6 +1,8 @@
 import socket
 import sys
 from argparse import ArgumentParser
+from base64 import urlsafe_b64encode
+from hashlib import pbkdf2_hmac
 from itertools import chain
 from pathlib import Path
 from secrets import token_urlsafe
@@ -23,7 +25,7 @@ class App(FalconApp):
         self.base_dir = Path(__file__).parents[1] / "webroot"
         self.env = Environment(
             loader=FileSystemLoader(self.base_dir),
-            autoescape=select_autoescape,
+            autoescape=select_autoescape(),
             extensions=["hub.utils.StaticTag"],
         )
         self.secret = secret or token_urlsafe(64)
@@ -35,8 +37,15 @@ class App(FalconApp):
             HubApp(self, base_dir)
         self.add_error_handler(Exception, self.print_exception)
 
-    def get_hubapp_by_name(self, name):
-        return self.hubapps[name]
+    def scramble(self, value):
+        if isinstance(value, str):
+            value = value.encode()
+        secret = self.secret
+        if isinstance(secret, str):
+            secret = secret.encode()
+        return urlsafe_b64encode(
+            pbkdf2_hmac("sha512", value, secret, 221100)
+        ).rstrip(b"=").decode("ascii")
 
     async def print_exception(self, req, resp, ex, params):
         print_exception(*sys.exc_info())