Merge pull request #1217 from coreos-inc/v2pagination

Fix V2 catalog and tag pagination
This commit is contained in:
josephschorr 2016-02-16 15:34:49 -05:00
commit 81a36ee3b8
7 changed files with 105 additions and 38 deletions

26
util/pagination.py Normal file
View file

@ -0,0 +1,26 @@
import datetime
import json
from app import app
from util.security.crypto import encrypt_string, decrypt_string
# TTL (in seconds) for page tokens.
_PAGE_TOKEN_TTL = datetime.timedelta(days=2).total_seconds()
def decrypt_page_token(token_string):
if token_string is None:
return None
unencrypted = decrypt_string(token_string, app.config['PAGE_TOKEN_KEY'], ttl=_PAGE_TOKEN_TTL)
if unencrypted is None:
return None
try:
return json.loads(unencrypted)
except ValueError:
return None
def encrypt_page_token(page_token):
return encrypt_string(json.dumps(page_token), app.config['PAGE_TOKEN_KEY'])

View file

@ -11,7 +11,7 @@ def decrypt_string(string, key, ttl=None):
""" Decrypts an encrypted string with the specified key. The key must be 32 raw bytes. """
f = Fernet(base64.urlsafe_b64encode(key))
try:
return f.decrypt(string, ttl=ttl)
return f.decrypt(str(string), ttl=ttl)
except InvalidToken:
return None
except TypeError: