(cls, string, secret_key)
return cls(items, secret_key, False)
Load the secure cookie from a serialized string.

        :param string: The cookie value to unserialize.
        :param secret_key: The secret key used to serialize the cookie.
        :return: A new :class:`SecureCookie`.
Load the secure cookie from a serialized string.
Load the secure cookie from a serialized string .
def unserialize(cls, string, secret_key):
        """Load the secure cookie from a serialized string.

        :param string: The cookie value to unserialize.
        :param secret_key: The secret key used to serialize the cookie.
        :return: A new :class:`SecureCookie`.
        """
        if isinstance(string, text_type):
            string = string.encode("utf-8", "replace")

        if isinstance(secret_key, text_type):
            secret_key = secret_key.encode("utf-8", "replace")

        try:
            base64_hash, data = string.split(b"?", 1)
        except (ValueError, IndexError):
            items = ()
        else:
            items = {}
            mac = hmac(secret_key, None, cls.hash_method)

            for item in data.split(b"&"):
                mac.update(b"|" + item)

                if b"=" not in item:
                    items = None
                    break

                key, value = item.split(b"=", 1)
                # try to make the key a string
                key = url_unquote_plus(key.decode("ascii"))

                try:
                    key = to_native(key)
                except UnicodeError:
                    pass

                items[key] = value

            # no parsing error and the mac looks okay, we can now
            # sercurely unpickle our cookie.
            try:
                client_hash = base64.b64decode(base64_hash)
            except TypeError:
                items = client_hash = None

            if items is not None and safe_str_cmp(client_hash, mac.digest()):
                try:
                    for key, value in iteritems(items):
                        items[key] = cls.unquote(value)
                except UnquoteError:
                    items = ()
                else:
                    if "_expires" in items:
                        if time() > items["_expires"]:
                            items = ()
                        else:
                            del items["_expires"]
            else:
                items = ()
        return cls(items, secret_key, False)
def unserialize ( cls , string , secret_key ) : if isinstance ( string , text_type ) : string = string . encode ( "utf-8" , "replace" ) if isinstance ( secret_key , text_type ) : secret_key = secret_key . encode ( "utf-8" , "replace" ) try : base64_hash , data = string . split ( b"?" , 1 ) except ( ValueError , IndexError ) : items = ( ) else : items = { } mac = hmac ( secret_key , None , cls . hash_method ) for item in data . split ( b"&" ) : mac . update ( b"|" + item ) if b"=" not in item : items = None break key , value = item . split ( b"=" , 1 ) # try to make the key a string key = url_unquote_plus ( key . decode ( "ascii" ) ) try : key = to_native ( key ) except UnicodeError : pass items [ key ] = value # no parsing error and the mac looks okay, we can now # sercurely unpickle our cookie. try : client_hash = base64 . b64decode ( base64_hash ) except TypeError : items = client_hash = None if items is not None and safe_str_cmp ( client_hash , mac . digest ( ) ) : try : for key , value in iteritems ( items ) : items [ key ] = cls . unquote ( value ) except UnquoteError : items = ( ) else : if "_expires" in items : if time ( ) > items [ "_expires" ] : items = ( ) else : del items [ "_expires" ] else : items = ( ) return cls ( items , secret_key , False )