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[bugfix] parent status replied to status not dereferenced sometimes (#2587)

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* much simplified DereferenceStatusAncestors(), also handles edge cases now

* perform status acceptibility check before handling even as forward

* don't further dereference ancestors if they're up to date

* call enrichStatusSafely() directly to ensure we get error messages

* change getStatusByURI() semantics to return error + old model on failed update, fix deref ancestor to check for staleness before refetch

* perform a nil-check on the status.Local variable, in case it hasn't been set on new status attempting refresh

* more consistently set returned parent status, don't check if updated

* only home-timeline statuses if explicitly visible AND not explicitly invisible!

* fix broken test now that status acceptibility checks happen on forwarded statuses
This commit is contained in:
kim 2024-01-31 13:29:47 +00:00 committed by GitHub
parent 81198fa2d0
commit 0f7a2024c3
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GPG Key ID: B5690EEEBB952194
6 changed files with 230 additions and 237 deletions
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27
internal/federation/dereferencing/account.go
View File

@ -372,18 +372,18 @@ func (d *Dereferencer) enrichAccountSafely(
// By default use account.URI
// as the per-URI deref lock.
var lockKey string
var uriStr string
if account.URI != "" {
lockKey = account.URI
uriStr = account.URI
} else {
// No URI is set yet, instead generate a faux-one from user+domain.
lockKey = "https://" + account.Domain + "/users/" + account.Username
uriStr = "https://" + account.Domain + "/users/" + account.Username
}
// Acquire per-URI deref lock, wraping unlock
// to safely defer in case of panic, while still
// performing more granular unlocks when needed.
unlock := d.state.FedLocks.Lock(lockKey)
unlock := d.state.FedLocks.Lock(uriStr)
unlock = doOnce(unlock)
defer unlock()
@ -395,12 +395,7 @@ func (d *Dereferencer) enrichAccountSafely(
accountable,
)
if code := gtserror.StatusCode(err); code >= 400 {
// No matter what, log the error
// so instance admins have an idea
// why something isn't working.
log.Info(ctx, err)
if gtserror.StatusCode(err) >= 400 {
if account.IsNew() {
// This was a new account enrich
// attempt which failed before we
@ -417,7 +412,7 @@ func (d *Dereferencer) enrichAccountSafely(
// return the model we had stored already.
account.FetchedAt = time.Now()
if err := d.state.DB.UpdateAccount(ctx, account, "fetched_at"); err != nil {
log.Errorf(ctx, "error updating account fetched_at: %v", err)
log.Error(ctx, "error updating %s fetched_at: %v", uriStr, err)
}
}
@ -435,7 +430,7 @@ func (d *Dereferencer) enrichAccountSafely(
// in a call to db.Put(Account). Look again in DB by URI.
latest, err = d.state.DB.GetAccountByURI(ctx, account.URI)
if err != nil {
err = gtserror.Newf("error getting account %s from database after race: %w", lockKey, err)
err = gtserror.Newf("error getting account %s from database after race: %w", uriStr, err)
}
}
@ -1070,12 +1065,18 @@ func (d *Dereferencer) dereferenceAccountFeatured(ctx context.Context, requestUs
// we still know it was *meant* to be pinned.
statusURIs = append(statusURIs, statusURI)
// Search for status by URI. Note this may return an existing model
// we have stored with an error from attempted update, so check both.
status, _, _, err := d.getStatusByURI(ctx, requestUser, statusURI)
if err != nil {
// We couldn't get the status, bummer. Just log + move on, we can try later.
log.Errorf(ctx, "error getting status from featured collection %s: %v", statusURI, err)
if status == nil {
// This is only unactionable
// if no status was returned.
continue
}
}
// If the status was already pinned, we don't need to do anything.
if !status.PinnedAt.IsZero() {

69
internal/federation/dereferencing/status.go
View File

@ -41,7 +41,7 @@
// statusUpToDate returns whether the given status model is both updateable
// (i.e. remote status) and whether it needs an update based on `fetched_at`.
func statusUpToDate(status *gtsmodel.Status, force bool) bool {
if *status.Local {
if status.Local != nil && *status.Local {
// Can't update local statuses.
return true
}
@ -69,16 +69,24 @@ func statusUpToDate(status *gtsmodel.Status, force bool) bool {
// is beyond a certain interval, the status will be dereferenced. In the case of dereferencing, some low-priority status information may be enqueued for asynchronous fetching,
// e.g. dereferencing the status thread. Param 'syncParent' = true indicates to fetch status ancestors synchronously. An ActivityPub object indicates the status was dereferenced.
func (d *Dereferencer) GetStatusByURI(ctx context.Context, requestUser string, uri *url.URL) (*gtsmodel.Status, ap.Statusable, error) {
// Fetch and dereference status if necessary.
// Fetch and dereference / update status if necessary.
status, statusable, isNew, err := d.getStatusByURI(ctx,
requestUser,
uri,
)
if err != nil {
if status == nil {
// err with no existing
// status for fallback.
return nil, nil, err
}
if statusable != nil {
log.Errorf(ctx, "error updating status %s: %v", uri, err)
} else if statusable != nil {
// Deref parents + children.
d.dereferenceThread(ctx,
requestUser,
@ -92,7 +100,7 @@ func (d *Dereferencer) GetStatusByURI(ctx context.Context, requestUser string, u
return status, statusable, nil
}
// getStatusByURI is a package internal form of .GetStatusByURI() that doesn't bother dereferencing the whole thread on update.
// getStatusByURI is a package internal form of .GetStatusByURI() that doesn't dereference thread on update, and may return an existing status with error on failed re-fetch.
func (d *Dereferencer) getStatusByURI(ctx context.Context, requestUser string, uri *url.URL) (*gtsmodel.Status, ap.Statusable, bool, error) {
var (
status *gtsmodel.Status
@ -100,8 +108,9 @@ func (d *Dereferencer) getStatusByURI(ctx context.Context, requestUser string, u
err error
)
// Search the database for existing status with URI.
// Search the database for existing by URI.
status, err = d.state.DB.GetStatusByURI(
// request a barebones object, it may be in the
// db but with related models not yet dereferenced.
gtscontext.SetBarebones(ctx),
@ -112,7 +121,7 @@ func (d *Dereferencer) getStatusByURI(ctx context.Context, requestUser string, u
}
if status == nil {
// Else, search the database for existing by URL.
// Else, search database for existing by URL.
status, err = d.state.DB.GetStatusByURL(
gtscontext.SetBarebones(ctx),
uriStr,
@ -123,14 +132,16 @@ func (d *Dereferencer) getStatusByURI(ctx context.Context, requestUser string, u
}
if status == nil {
// Ensure that this isn't a search for a local status.
if uri.Host == config.GetHost() || uri.Host == config.GetAccountDomain() {
return nil, nil, false, gtserror.SetUnretrievable(err) // this will be db.ErrNoEntries
// Ensure not a failed search for a local
// status, if so we know it doesn't exist.
if uri.Host == config.GetHost() ||
uri.Host == config.GetAccountDomain() {
return nil, nil, false, gtserror.SetUnretrievable(err)
}
// Create and pass-through a new bare-bones model for deref.
return d.enrichStatusSafely(ctx, requestUser, uri, &gtsmodel.Status{
Local: func() *bool { var false bool; return &false }(),
Local: util.Ptr(false),
URI: uriStr,
}, nil)
}
@ -145,21 +156,22 @@ func (d *Dereferencer) getStatusByURI(ctx context.Context, requestUser string, u
return status, nil, false, nil
}
// Try to update + deref existing status model.
// Try to deref and update existing status model.
latest, statusable, isNew, err := d.enrichStatusSafely(ctx,
requestUser,
uri,
status,
nil,
)
if err != nil {
log.Errorf(ctx, "error enriching remote status: %v", err)
// Fallback to existing status.
return status, nil, false, nil
if err != nil {
// fallback to the
// existing status.
latest = status
statusable = nil
}
return latest, statusable, isNew, nil
return latest, statusable, isNew, err
}
// RefreshStatus is functionally equivalent to GetStatusByURI(), except that it requires a pre
@ -294,12 +306,7 @@ func (d *Dereferencer) enrichStatusSafely(
apubStatus,
)
if code := gtserror.StatusCode(err); code >= 400 {
// No matter what, log the error
// so instance admins have an idea
// why something isn't working.
log.Info(ctx, err)
if gtserror.StatusCode(err) >= 400 {
if isNew {
// This was a new status enrich
// attempt which failed before we
@ -316,7 +323,7 @@ func (d *Dereferencer) enrichStatusSafely(
// return the model we had stored already.
status.FetchedAt = time.Now()
if err := d.state.DB.UpdateStatus(ctx, status, "fetched_at"); err != nil {
log.Errorf(ctx, "error updating status fetched_at: %v", err)
log.Error(ctx, "error updating %s fetched_at: %v", uriStr, err)
}
}
@ -408,19 +415,21 @@ func (d *Dereferencer) enrichStatus(
return nil, nil, gtserror.Newf("error converting statusable to gts model for status %s: %w", uri, err)
}
// Check if we've previously
// stored this status in the DB.
// If we have, it'll be ID'd.
var isNew = (status.ID == "")
if isNew {
// No ID, we haven't stored this status before.
// Generate new status ID from the status publication time.
// Based on the original provided
// status model, determine whether
// this is a new insert / update.
var isNew bool
if isNew = (status.ID == ""); isNew {
// Generate new status ID from the provided creation date.
latestStatus.ID, err = id.NewULIDFromTime(latestStatus.CreatedAt)
if err != nil {
log.Errorf(ctx, "invalid created at date (falling back to 'now'): %v", err)
latestStatus.ID = id.NewULID() // just use "now"
}
} else {
// Reuse existing status ID.
latestStatus.ID = status.ID
}

180
internal/federation/dereferencing/thread.go
View File

@ -19,7 +19,6 @@
import (
"context"
"errors"
"net/http"
"net/url"
@ -27,8 +26,6 @@
"github.com/superseriousbusiness/activity/pub"
"github.com/superseriousbusiness/gotosocial/internal/ap"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
@ -101,144 +98,85 @@ func (d *Dereferencer) DereferenceStatusAncestors(ctx context.Context, username
return nil
}
// Add new log fields for this iteration.
l = l.WithFields(kv.Fields{
{"current", current.URI},
{"parent", current.InReplyToURI},
}...)
l.Trace("following status ancestors")
l = l.WithField("parent", current.InReplyToURI)
l.Trace("following status ancestor")
// Check whether this parent has already been deref'd.
if _, ok := derefdStatuses[current.InReplyToURI]; ok {
l.Warn("self referencing status ancestors")
// Parse status parent URI for later use.
uri, err := url.Parse(current.InReplyToURI)
if err != nil {
l.Warnf("invalid uri: %v", err)
return nil
}
// Add this status URI to map of deref'd.
derefdStatuses[current.URI] = struct{}{}
if current.InReplyToID != "" {
// We already have an InReplyToID set. This means
// the status's parent has, at some point, been
// inserted into the database, either because it
// is a status from our instance, or a status from
// remote that we've dereferenced before, or found
// out about in some other way.
//
// Working on this assumption, check if the parent
// status exists, either as a copy pinned on the
// current status, or in the database.
if current.InReplyTo != nil {
// We have the parent already, and the child
// doesn't need to be updated; keep iterating
// from this parent upwards.
current = current.InReplyTo
continue
// Check whether this parent has already been deref'd.
if _, ok := derefdStatuses[current.InReplyToURI]; ok {
l.Warn("self referencing status ancestor")
return nil
}
// Parent isn't pinned to this status (yet), see
// if we can get it from the db (we should be
// able to, since it has an ID already).
parent, err := d.state.DB.GetStatusByID(
gtscontext.SetBarebones(ctx),
current.InReplyToID,
)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
// Real db error, stop.
return gtserror.Newf("db error getting status %s: %w", current.InReplyToID, err)
}
// Add this status's parent URI to map of deref'd.
derefdStatuses[current.InReplyToURI] = struct{}{}
if parent != nil {
// We got the parent from the db, and the child
// doesn't need to be updated; keep iterating
// from this parent upwards.
current.InReplyTo = parent
current = parent
continue
}
// Fetch parent status by current's reply URI, this handles
// case of existing (updating if necessary) or a new status.
parent, _, _, err := d.getStatusByURI(ctx, username, uri)
// If we arrive here, we know this child *did* have
// a parent at some point, but it no longer exists in
// the database, presumably because it's been deleted
// by another action.
//
// TODO: clean this up in a nightly task.
l.Warn("orphaned status (parent no longer exists)")
return nil // Cannot iterate further.
}
// Check for a returned HTTP code via error.
switch code := gtserror.StatusCode(err); {
// If we reach this point, we know the status has
// an InReplyToURI set, but it doesn't yet have an
// InReplyToID, which means that the parent status
// has not yet been dereferenced.
inReplyToURI, err := url.Parse(current.InReplyToURI)
if err != nil || inReplyToURI == nil {
// Parent URI is not something we can handle.
l.Warn("orphaned status (invalid InReplyToURI)")
return nil //nolint:nilerr
}
// Parent URI is valid, try to get it.
// getStatusByURI guards against the following conditions:
// - refetching recently fetched statuses (recursion!)
// - remote domain is blocked (will return unretrievable)
// - any http type error for a new status returns unretrievable
parent, _, _, err := d.getStatusByURI(ctx, username, inReplyToURI)
if err == nil {
// We successfully fetched the parent.
// Update current status with new info.
current.InReplyToID = parent.ID
current.InReplyToAccountID = parent.AccountID
if err := d.state.DB.UpdateStatus(
ctx, current,
// Status codes 404 and 410 incicate the status does not exist anymore.
// Gone (410) is the preferred for deletion, but we accept NotFound too.
case code == http.StatusNotFound || code == http.StatusGone:
l.Trace("status orphaned")
current.InReplyToID = ""
current.InReplyToURI = ""
current.InReplyToAccountID = ""
current.InReplyTo = nil
current.InReplyToAccount = nil
if err := d.state.DB.UpdateStatus(ctx,
current,
"in_reply_to_id",
"in_reply_to_uri",
"in_reply_to_account_id",
); err != nil {
return gtserror.Newf("db error updating status %s: %w", current.ID, err)
}
return nil
// Mark parent as next status to
// work on, and keep iterating.
current = parent
continue
}
// An error was returned for a status during
// an attempted NEW dereference, return here.
case err != nil && current.InReplyToID == "":
return gtserror.Newf("error dereferencing new %s: %w", current.InReplyToURI, err)
// We could not fetch the parent, check if we can do anything
// useful with the error. For example, HTTP status code returned
// from remote may indicate that the parent has been deleted.
switch code := gtserror.StatusCode(err); {
case code == http.StatusGone:
// 410 means the status has definitely been deleted.
// Update this status to reflect that, then bail.
l.Debug("orphaned status: parent returned 410 Gone")
// An error was returned for an existing parent,
// we simply treat this as a temporary situation.
// (we fallback to using existing parent status).
case err != nil:
l.Errorf("error getting parent: %v", err)
current.InReplyToURI = ""
if err := d.state.DB.UpdateStatus(
ctx, current,
// The ID has changed for currently stored parent ID
// (which may be empty, if new!) and fetched version.
//
// Update the current's inReplyTo fields to parent.
case current.InReplyToID != parent.ID:
l.Tracef("parent changed %s => %s", current.InReplyToID, parent.ID)
current.InReplyToAccountID = parent.AccountID
current.InReplyToAccount = parent.Account
current.InReplyToURI = parent.URI
current.InReplyToID = parent.ID
if err := d.state.DB.UpdateStatus(ctx,
current,
"in_reply_to_id",
"in_reply_to_uri",
"in_reply_to_account_id",
); err != nil {
return gtserror.Newf("db error updating status %s: %w", current.ID, err)
}
return nil
case code != 0:
// We had a code, but not one indicating deletion, log the code
// but don't return error or update the status; we can try again later.
l.Warnf("orphaned status: http error dereferencing parent: %v)", err)
return nil
case gtserror.IsUnretrievable(err):
// Not retrievable for some other reason, so just
// bail for now; we can try again later if necessary.
l.Warnf("orphaned status: parent unretrievable: %v)", err)
return nil
default:
// Some other error that stops us in our tracks.
return gtserror.Newf("error dereferencing parent %s: %w", current.InReplyToURI, err)
}
// Set next parent to use.
current.InReplyTo = parent
current = current.InReplyTo
}
return gtserror.Newf("reached %d ancestor iterations for %q", maxIter, status.URI)
@ -336,7 +274,7 @@ func() *frame {
break itemLoop
}
// Check for available IRI on item
// Check for available IRI.
itemIRI, _ := pub.ToId(next)
if itemIRI == nil {
continue itemLoop
@ -354,9 +292,7 @@ func() *frame {
// - any http type error for a new status returns unretrievable
_, statusable, _, err := d.getStatusByURI(ctx, username, itemIRI)
if err != nil {
if !gtserror.IsUnretrievable(err) {
l.Errorf("error dereferencing remote status %s: %v", itemIRI, err)
}
continue itemLoop
}

49
internal/federation/federatingdb/create.go
View File

@ -303,27 +303,9 @@ func (f *federatingDB) createStatusable(
statusable ap.Statusable,
forwarded bool,
) error {
// If we do have a forward, we should ignore the content
// and instead deref based on the URI of the statusable.
//
// In other words, don't automatically trust whoever sent
// this status to us, but fetch the authentic article from
// the server it originated from.
if forwarded {
// Pass the statusable URI (APIri) into the processor
// worker and do the rest of the processing asynchronously.
f.state.Workers.EnqueueFediAPI(ctx, messages.FromFediAPI{
APObjectType: ap.ObjectNote,
APActivityType: ap.ActivityCreate,
APIri: ap.GetJSONLDId(statusable),
APObjectModel: nil,
GTSModel: nil,
ReceivingAccount: receiver,
})
return nil
}
// Check whether we should accept this new status.
// Check whether we should accept this new status,
// we do this BEFORE even handling forwards to us.
accept, err := f.shouldAcceptStatusable(ctx,
receiver,
requester,
@ -343,6 +325,27 @@ func (f *federatingDB) createStatusable(
return nil
}
// If we do have a forward, we should ignore the content
// and instead deref based on the URI of the statusable.
//
// In other words, don't automatically trust whoever sent
// this status to us, but fetch the authentic article from
// the server it originated from.
if forwarded {
// Pass the statusable URI (APIri) into the processor
// worker and do the rest of the processing asynchronously.
f.state.Workers.EnqueueFediAPI(ctx, messages.FromFediAPI{
APObjectType: ap.ObjectNote,
APActivityType: ap.ActivityCreate,
APIri: ap.GetJSONLDId(statusable),
APObjectModel: nil,
GTSModel: nil,
ReceivingAccount: receiver,
})
return nil
}
// Do the rest of the processing asynchronously. The processor
// will handle inserting/updating + further dereferencing the status.
f.state.Workers.EnqueueFediAPI(ctx, messages.FromFediAPI{
@ -371,13 +374,11 @@ func (f *federatingDB) shouldAcceptStatusable(ctx context.Context, receiver *gts
name := mention.NameString
switch {
case accURI != "":
if accURI == receiver.URI ||
accURI == receiver.URL {
case accURI != "" &&
accURI == receiver.URI || accURI == receiver.URL:
// Mention target is receiver,
// they are mentioned in status.
return true, nil
}
case accURI == "" && name != "":
// Only a name was provided, extract the user@domain parts.

17
internal/federation/federatingdb/create_test.go
View File

@ -26,6 +26,8 @@
"github.com/superseriousbusiness/activity/streams"
"github.com/superseriousbusiness/gotosocial/internal/ap"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
"github.com/superseriousbusiness/gotosocial/internal/util"
)
type CreateTestSuite struct {
@ -60,7 +62,20 @@ func (suite *CreateTestSuite) TestCreateNoteForward() {
create := suite.testActivities["forwarded_message"].Activity
err := suite.federatingDB.Create(ctx, create)
// ensure a follow exists between requesting
// and receiving account, this ensures the forward
// will be seen as "relevant" and not get dropped.
err := suite.db.PutFollow(ctx, &gtsmodel.Follow{
ID: id.NewULID(),
URI: "https://this.is.a.url",
AccountID: receivingAccount.ID,
TargetAccountID: requestingAccount.ID,
ShowReblogs: util.Ptr(true),
Notify: util.Ptr(false),
})
suite.NoError(err)
err = suite.federatingDB.Create(ctx, create)
suite.NoError(err)
// should be a message heading to the processor now, which we can intercept here

103
internal/visibility/home_timeline.go
View File

@ -99,10 +99,13 @@ func (f *Filter) isStatusHomeTimelineable(ctx context.Context, owner *gtsmodel.A
}
var (
// iterated-over
// loop status.
next = status
oneAuthor = true // Assume one author until proven otherwise.
included bool
converstn bool
// assume one author
// until proven otherwise.
oneAuthor = true
)
for {
@ -116,21 +119,28 @@ func (f *Filter) isStatusHomeTimelineable(ctx context.Context, owner *gtsmodel.A
next.MentionsAccount(owner.ID) {
// Owner is in / mentioned in
// this status thread. They can
// see all future visible statuses.
included = true
// see future visible statuses.
visible = true
break
}
// Check whether this should be a visible conversation, i.e.
// is it between accounts on owner timeline that they follow?
converstn, err = f.isVisibleConversation(ctx, owner, next)
var notVisible bool
// Check whether status in conversation is explicitly relevant to timeline
// owner (i.e. includes mutals), or is explicitly invisible (i.e. blocked).
visible, notVisible, err = f.isVisibleConversation(ctx, owner, next)
if err != nil {
return false, gtserror.Newf("error checking conversation visibility: %w", err)
}
if converstn {
// Owner is relevant to this conversation,
// i.e. between follows / mutuals they know.
if notVisible {
log.Tracef(ctx, "conversation not visible to timeline owner")
return false, nil
}
if visible {
// Conversation relevant
// to timeline owner!
break
}
@ -144,23 +154,23 @@ func (f *Filter) isStatusHomeTimelineable(ctx context.Context, owner *gtsmodel.A
break
}
// Fetch next parent in thread.
parentID := next.InReplyToID
if parentID == "" {
// Check parent is deref'd.
if next.InReplyToID == "" {
log.Warnf(ctx, "status not yet deref'd: %s", next.InReplyToURI)
return false, cache.SentinelError
}
// Fetch next parent in conversation.
next, err = f.state.DB.GetStatusByID(
gtscontext.SetBarebones(ctx),
parentID,
next.InReplyToID,
)
if err != nil {
return false, gtserror.Newf("error getting status parent %s: %w", parentID, err)
return false, gtserror.Newf("error getting status parent %s: %w", next.InReplyToID, err)
}
}
if next != status && !oneAuthor && !included && !converstn {
if next != status && !oneAuthor && !visible {
log.Trace(ctx, "ignoring visible reply in conversation irrelevant to owner")
return false, nil
}
@ -193,17 +203,25 @@ func (f *Filter) isStatusHomeTimelineable(ctx context.Context, owner *gtsmodel.A
return true, nil
}
func (f *Filter) isVisibleConversation(ctx context.Context, owner *gtsmodel.Account, status *gtsmodel.Status) (bool, error) {
func (f *Filter) isVisibleConversation(
ctx context.Context,
owner *gtsmodel.Account,
status *gtsmodel.Status,
) (
bool, // explicitly IS visible
bool, // explicitly NOT visible
error, // err
) {
// Check if status is visible to the timeline owner.
visible, err := f.StatusVisible(ctx, owner, status)
if err != nil {
return false, err
return false, false, err
}
if !visible {
// Invisible to
// timeline owner.
return false, nil
// Explicitly NOT visible
// to the timeline owner.
return false, true, nil
}
if status.Visibility == gtsmodel.VisibilityUnlocked ||
@ -212,37 +230,50 @@ func (f *Filter) isVisibleConversation(ctx context.Context, owner *gtsmodel.Acco
// direct / follow-only / mutual-only visibility statuses
// as the above visibility check already handles this.
// Check if owner follows the status author.
followAuthor, err := f.state.DB.IsFollowing(ctx,
// Check owner follows the status author.
follow, err := f.state.DB.IsFollowing(ctx,
owner.ID,
status.AccountID,
)
if err != nil {
return false, gtserror.Newf("error checking follow %s->%s: %w", owner.ID, status.AccountID, err)
return false, false, gtserror.Newf("error checking follow %s->%s: %w", owner.ID, status.AccountID, err)
}
if !followAuthor {
// Not a visible status
// in conversation thread.
return false, nil
if !follow {
// Not explicitly visible
// status to timeline owner.
return false, false, nil
}
}
var follow bool
for _, mention := range status.Mentions {
// Check if timeline owner follows target.
follow, err := f.state.DB.IsFollowing(ctx,
// Check block between timeline owner and mention.
block, err := f.state.DB.IsEitherBlocked(ctx,
owner.ID,
mention.TargetAccountID,
)
if err != nil {
return false, gtserror.Newf("error checking mention follow %s->%s: %w", owner.ID, mention.TargetAccountID, err)
return false, false, gtserror.Newf("error checking mention block %s<->%s: %w", owner.ID, mention.TargetAccountID, err)
}
if follow {
// Confirmed conversation.
return true, nil
if block {
// Invisible conversation.
return false, true, nil
}
if !follow {
// See if tl owner follows any of mentions.
follow, err = f.state.DB.IsFollowing(ctx,
owner.ID,
mention.TargetAccountID,
)
if err != nil {
return false, false, gtserror.Newf("error checking mention follow %s->%s: %w", owner.ID, mention.TargetAccountID, err)
}
}
}
return false, nil
return follow, false, nil
}