tree 99908385e3313441cc6009fe2c3ad3a066be9207
parent 60ae2c2e97ce35792795e4a67f16b6cc1e84497e
author Ivan Pilat <ivanpi@google.com> 1468870098 -0700
committer Ivan Pilat <ivanpi@google.com> 1468870098 -0700

syncbase: Prevent returned errors from leaking existence.

All client-to-Syncbase methods (db/cx/row, syncgroup manager, blob, cr)
have been sanitized to return ErrNoExistOrNoAccess when the caller has
no permission to know about the existence of an object.

GetDeltas and JoinSyncgroupAtAdmin have also been sanitized (GetDeltas
returns ErrDbOffline instead). PublishSyncgroup cannot be sanitized
until authentication is added to it.

Tests in subsequent CL.

MultiPart: 3/3
Change-Id: I54df90a973edabfa8e31e12000e5ff9115bd699c