Bridgy Fed delivers Follow and Accept to the personal inbox addressed
only to Public. Any server can already address a local user directly,
so the check gave no protection. Ported from Akkoma 2b885288f.
Co-authored-by: Oneric <oneric@oneric.stub>
StatusController keeps string param keys (replace_params: false, since
b8db67daf), so params: [:id] never matched and status_id_action became
one bucket per user across all statuses (3 favourites/reblogs a minute).
The check fetched the whole history of develop with all tags for every
pull request (about 250 MB), which was slow and loaded the git server.
Listing added files only needs the trees of the tip.
The limit was a connection parameter, so it applied to every GIN index
scan, not only full-text search: recipient lookups and Oban job queries
could return incomplete, random results. Set it with SET LOCAL around
the search query only, configurable under Pleroma.Search.DatabaseSearch.
The default stays 500 for search: measured on a 74M-object database,
higher limits or none make searches for common words exceed the query
timeout. Remote fetches for URL queries run outside the transaction.
Based on Akkoma 811f0a468.
Co-authored-by: Oneric <oneric@oneric.stub>
The peers query read the nickname of every remote user every minute
(2.7 s and 1.2M buffer hits on a large instance). The instances table
now has a row for every host we know users from, so read it instead,
and recompute the stats every 5 minutes.
Based on Akkoma 138b1aea2 and 7b76fdeed.
Co-authored-by: Oneric <oneric@oneric.stub>
Co-authored-by: FloatingGhost <hannah@coffee-and-dreams.uk>
The instances table only got rows from fetches, reachability changes
and favicon lookups, so most hosts we know users from had none. Insert
a row when a remote user is created, keeping existing rows.
Mastodon 4.4+ clients read quotes from a top-level quote object with
state and quoted_status; Pleroma only had pleroma.quote, so they did
not show quote posts. Quoted statuses get a shallow quote with only
quoted_status_id, as quotes are rendered one level deep.
Inspired by Akkoma 5b7209980, which can not use the shallow form because
Akkoma already had a top-level quote status.
Containment.get_actor raised on remote shapes it did not know, such as
an attributedTo object without an id. This crashed object fetches and
poll refetches. Return nil, so containment rejects the object.
A fetch from a display URL (e.g. https://host/@user) returns the
actor with its canonical id. make_user_from_ap_id looked the user up
by the fetch URL, did not find it and tried to insert a duplicate.
Look the user up by the fetched id.
Based on Akkoma 48b3a3579.
refetch_object (used for poll updates) accepted whatever the remote
served. A hostile server could swap in another object or move the post
to another author.
The refetch now goes to the stored id without redirects, and the
returned id and actor must equal the stored ones.
Based on Akkoma 9061d148b and fee57eb37.
The fetcher accepted any document whose id was on the same host as the
fetch URL. Anyone who can place a JSON file on a host, for example
through an upload, could pass it off as another object or actor from
that host.
The id of a fetched document must now be the URL it came from (after
redirects), ignoring a trailing slash, the fragment, the host case and
differences that our URL encoding removes.
If it differs, as for Mastodon's /@user/123 display URLs, we refetch
once from that id, which must be on the same host. The refetch must
not redirect and must match exactly.
Test mocks that served a document under a different URL now serve it
from its own id.
Based on Akkoma 8684964c5 and 940792f8b.
HTTPSignaturePlug checks the policy before the cryptographic check. A
signed GET that fails it counts as unsigned; the inbox answers 401 to a
POST that fails it instead of queueing a failed-signature retry, which
only re-checks the signature. signature_policy: :log only logs.
Based on Akkoma's HTTP signature hardening.
Signature.check_signature_policy/2 requires date or (created) to be
signed and within signature_max_age (2 h) / signature_max_clock_skew
(1 h), and requires a signed, hashed digest for requests with a body.
Based on Akkoma's http_signatures fork (required headers, max_sig_age)
and Mastodon's SignedRequest (clock skew margin).
A remote actor could set its inbox or shared inbox to a third-party
host, so our signed deliveries went there. It could also claim
another actor's followers collection, which the visibility checks
trust.
Validate fetched actors and incoming actor Updates: inbox,
endpoints.sharedInbox, followers, following, featured and the
publicKey id must be on the same host as the actor id.
Based on Akkoma f07eb4cb5. The Bridgy fixture gets the key id that
current Bridgy Fed serves.
Followers-only posts and DMs went to each recipient's personal inbox,
so a followers-only post was sent once per follower on the same server.
Mastodon, GoToSocial and Iceshrimp.NET always use the shared inbox.
Only activities with bcc or bto still go to personal inboxes.
Based on Akkoma a80444041.
Co-authored-by: Oneric <oneric@oneric.stub>
Keyword.update/4 added filters: [] to a Pleroma.Upload ConfigDB entry
without a :filters key, which would hide the filters from the config
file, GPS stripping included. Only rewrite lists that change.
0.1.2 handles gridded HEIC photos (as iPhones write them), PNG files
with data after IEND and TIFF files, and bounds HEIC parsing by the
input size. Add tests for these files.
Old configs keep working and now also strip GPS from WebP and HEIC.
The deprecation warning names the replacement for each old filter, and
exiftool is no longer a startup requirement.
