Affected endpoints: apiPublishAddSource, apiPublishSetSources,
apiPublishUpdateSource, apiPublishRemoveSource, apiPublishDropChanges.
All five handlers shared the same flawed pattern: they loaded the
published repo from the DB and mutated it (ObtainRevision / DropRevision)
outside the task closure, before the task lock was acquired. Each task
closure then just wrote back the already-mutated, pre-lock object.
Because the task queue serialises tasks that share a resource key, two
concurrent requests appear safe — but each task closure holds a stale
copy of the object captured before the lock was taken:
Request A loads published: revision = {}
Request B loads published: revision = {} <- same DB state
A mutates: revision = {main: snap1}
B mutates: revision = {contrib: snap2}
Task A runs: saves {main: snap1} OK
Task B runs: saves {contrib: snap2} <- clobbers A's change
Fix: perform only a shallow ByStoragePrefixDistribution outside the task
(for the early 404 response, resource key, and task name). Inside the
task closure a dedicated taskCollectionFactory is created, the published
repo is re-read fresh from the DB (after the lock is acquired), and
LoadComplete + all mutations + Update are executed against that
authoritative copy.
apiPublishRepoOrSnapshot appended published.Key() to resources inside
the task closure, after maybeRunTaskInBackground had already been called.
The task's locked-resource set is fixed at submission time, so that append
had no effect — the published repo key was never registered as a resource.
Two concurrent POST /api/publish/{prefix} requests for the same
prefix/distribution therefore did not conflict in the task queue: both
ran in parallel, each loaded an empty PublishedRepoCollection from the DB,
both passed CheckDuplicate, and the second Add silently overwrote the first.
Fix: compute the published repo key ("U{storagePrefix}>>{distribution}")
from the already-known storage/prefix/distribution values and append it to
resources before calling maybeRunTaskInBackground, so concurrent creates
for the same destination are serialised by the task queue. The now-dead
append inside the closure is removed.
add API response wrappers with NumPackages derived from RefList length; keep show endpoint payloads unchanged for backward compatibility; add API tests for list endpoint NumPackages; update swagger response schemas for list endpoints
https://wiki.debian.org/DebianRepository/Format#Signed-By says:
> **Signed-By**
> An optional field containing a comma separated list of
> OpenPGP key fingerprints to be used for validating
> the next Release file. The fingerprints must consist
> only of hex digits and may not contain spaces.
> The fingerprint specifies either the key the Release file
> must be signed with or the key the signature key must be
> a subkey of. The later match can be disabled by appending
> an exclamation mark to the fingerprint.
>
> If the field is present, a client should only accept future updates
> to the repository that are signed with keys listed in the field.
> The field should be ignored if the Valid-Until field is not present
> or if it is expired.
For both the CLI tools and JSON, the field is taken as a string verbatim.
When specified, we must also provide `Valid-Until` field,
and i'm not sure there is an 'infinity' value for it,
so 100 years will have to do?
Fixes https://github.com/aptly-dev/aptly/issues/1497
André Roth
Pierig Le Saux
Philip Cramer
Russell Greene
tom
Zhang Xiao
Ales Bregar
Brian Witt
Roman Lebedev
Juan Calderon-Perez
chesseed
Tobias Assarsson
JupiterRider
Itay Porezky
iofq