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use pointer for freshness window (#2614)

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tobi 2024-02-09 15:24:49 +01:00 • committed by GitHub
commit e890169e6f
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15 changed files with 191 additions and 95 deletions
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62
internal/federation/dereferencing/status.go
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@ -38,31 +38,41 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/util"
)
// 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 != nil && *status.Local {
// Can't update local statuses.
// statusFresh returns true if the given status is still
// considered "fresh" according to the desired freshness
// window (falls back to default status freshness if nil).
//
// Local statuses will always be considered fresh,
// because there's no remote state that may have changed.
//
// Return value of false indicates that the status
// is not fresh and should be refreshed from remote.
func statusFresh(
status *gtsmodel.Status,
window *FreshnessWindow,
) bool {
// Take default if no
// freshness window preferred.
if window == nil {
window = DefaultStatusFreshness
}
if status.IsLocal() {
// Can't refresh
// local statuses.
return true
}
// Default limit we allow
// statuses to be refreshed.
limit := 2 * time.Hour
// Moment when the status is
// considered stale according to
// desired freshness window.
staleAt := status.FetchedAt.Add(
time.Duration(*window),
)
if force {
// We specifically allow the force flag
// to force an early refresh (on a much
// smaller cooldown period).
limit = 5 * time.Minute
}
// If this status was updated recently (within limit), return as-is.
if next := status.FetchedAt.Add(limit); time.Now().Before(next) {
return true
}
return false
// It's still fresh if the time now
// is not past the point of staleness.
return !time.Now().After(staleAt)
}
// GetStatusByURI will attempt to fetch a status by its URI, first checking the database. In the case of a newly-met remote model, or a remote model whose 'last_fetched' date
@ -146,7 +156,7 @@ func (d *Dereferencer) getStatusByURI(ctx context.Context, requestUser string, u
}, nil)
}
if statusUpToDate(status, false) {
if statusFresh(status, DefaultStatusFreshness) {
// This is an existing status that is up-to-date,
// before returning ensure it is fully populated.
if err := d.state.DB.PopulateStatus(ctx, status); err != nil {
@ -181,12 +191,12 @@ func (d *Dereferencer) RefreshStatus(
requestUser string,
status *gtsmodel.Status,
statusable ap.Statusable,
force bool,
window *FreshnessWindow,
) (*gtsmodel.Status, ap.Statusable, error) {
// If no incoming data is provided,
// check whether status needs update.
if statusable == nil &&
statusUpToDate(status, force) {
statusFresh(status, window) {
return status, nil, nil
}
@ -228,12 +238,12 @@ func (d *Dereferencer) RefreshStatusAsync(
requestUser string,
status *gtsmodel.Status,
statusable ap.Statusable,
force bool,
window *FreshnessWindow,
) {
// If no incoming data is provided,
// check whether status needs update.
if statusable == nil &&
statusUpToDate(status, force) {
statusFresh(status, window) {
return
}