This document is for an old release of Galaxy. You can alternatively view this page in the latest release if it exists or view the top of the latest release's documentation.

Source code for galaxy.datatypes.display_applications.util

from Crypto.Cipher import Blowfish

[docs]def encode_dataset_user(trans, dataset, user): # encode dataset id as usual # encode user id using the dataset create time as the key dataset_hash = trans.security.encode_id(dataset.id) if user is None: user_hash = 'None' else: user_hash = str(user.id) # Pad to a multiple of 8 with leading "!" user_hash = ("!" * (8 - len(user_hash) % 8)) + user_hash cipher = Blowfish.new(str(dataset.create_time)) user_hash = cipher.encrypt(user_hash).encode('hex') return dataset_hash, user_hash
[docs]def decode_dataset_user(trans, dataset_hash, user_hash): # decode dataset id as usual # decode user id using the dataset create time as the key dataset_id = trans.security.decode_id(dataset_hash) dataset = trans.sa_session.query(trans.app.model.HistoryDatasetAssociation).get(dataset_id) assert dataset, "Bad Dataset id provided to decode_dataset_user" if user_hash in [None, 'None']: user = None else: cipher = Blowfish.new(str(dataset.create_time)) user_id = cipher.decrypt(user_hash.decode('hex')).lstrip("!") user = trans.sa_session.query(trans.app.model.User).get(int(user_id)) assert user, "A Bad user id was passed to decode_dataset_user" return dataset, user