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upload: when using a Helper, insist that it provide protocols/helper/v1 . Related to #538.

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This commit is contained in:
Brian Warner 2008-11-21 20:29:32 -07:00
parent 0fab511be5
commit 3e25efc010
1 changed files with 5 additions and 1 deletions
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6
src/allmydata/immutable/upload.py
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@ -18,7 +18,8 @@ from allmydata.util import base32, idlib, mathutil
from allmydata.util.assertutil import precondition
from allmydata.util.rrefutil import get_versioned_remote_reference
from allmydata.interfaces import IUploadable, IUploader, IUploadResults, \
IEncryptedUploadable, RIEncryptedUploadable, IUploadStatus, NotEnoughSharesError
IEncryptedUploadable, RIEncryptedUploadable, IUploadStatus, \
NotEnoughSharesError, InsufficientVersionError
from allmydata.immutable import layout
from pycryptopp.cipher.aes import AES
@ -1242,6 +1243,9 @@ class Uploader(service.MultiService):
d.addCallback(self._got_versioned_helper)
def _got_versioned_helper(self, helper):
needed = "http://allmydata.org/tahoe/protocols/helper/v1"
if needed not in helper.version:
raise InsufficientVersionError(needed, helper.version)
self._helper = helper
helper.notifyOnDisconnect(self._lost_helper)