ExternalVendorCode/tahoe-lafs
1
0
Fork 0
mirror of https://github.com/tahoe-lafs/tahoe-lafs.git synced 2025-02-21 10:01:54 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

interfaces.py: corrections to take into account that lease cancel secrets are no longer honoured.

Browse Source
This commit is contained in:
david-sarah 2012-07-24 03:40:06 +00:00
parent e8240b0923
commit 5105448421
1 changed files with 12 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
src/allmydata/interfaces.py
View File

@ -26,9 +26,10 @@ URIExtensionData = StringConstraint(1000)
Number = IntegerConstraint(8) # 2**(8*8) == 16EiB ~= 18e18 ~= 18 exabytes
Offset = Number
ReadSize = int # the 'int' constraint is 2**31 == 2Gib -- large files are processed in not-so-large increments
WriteEnablerSecret = Hash # used to protect mutable bucket modifications
LeaseRenewSecret = Hash # used to protect bucket lease renewal requests
LeaseCancelSecret = Hash # used to protect bucket lease cancellation requests
WriteEnablerSecret = Hash # used to protect mutable share modifications
LeaseRenewSecret = Hash # used to protect lease renewal requests
LeaseCancelSecret = Hash # was used to protect lease cancellation requests
class RIBucketWriter(RemoteInterface):
""" Objects of this kind live on the server side. """
@ -107,7 +108,9 @@ class RIStorageServer(RemoteInterface):
This secret is generated by the client and
stored for later comparison by the server. Each
server is given a different secret.
@param cancel_secret: Like renew_secret, but protects bucket decref.
@param cancel_secret: This no longer allows lease cancellation, but
must still be a unique value identifying the
lease. XXX stop relying on it to be unique.
@param canary: If the canary is lost before close(), the bucket is
deleted.
@return: tuple of (alreadygot, allocated), where alreadygot is what we
@ -138,8 +141,8 @@ class RIStorageServer(RemoteInterface):
For mutable shares, if the given renew_secret does not match an
existing lease, IndexError will be raised with a note listing the
server-nodeids on the existing leases, so leases on migrated shares
can be renewed or cancelled. For immutable shares, IndexError
(without the note) will be raised.
can be renewed. For immutable shares, IndexError (without the note)
will be raised.
"""
return Any()
@ -188,7 +191,9 @@ class RIStorageServer(RemoteInterface):
This secret is generated by the client and
stored for later comparison by the server. Each
server is given a different secret.
@param cancel_secret: Like renew_secret, but protects bucket decref.
@param cancel_secret: This no longer allows lease cancellation, but
must still be a unique value identifying the
lease. XXX stop relying on it to be unique.
The 'secrets' argument is a tuple of (write_enabler, renew_secret,
cancel_secret). The first is required to perform any write. The