124 lines
3.9 KiB
Go
124 lines
3.9 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package visibility
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import (
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"context"
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"time"
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"github.com/superseriousbusiness/gotosocial/internal/cache"
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"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/log"
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)
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// StatusHomeTimelineable checks if given status should be included on requester's public timeline. Primarily relying on status visibility to requester and the AP visibility setting, and ignoring conversation threads.
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func (f *Filter) StatusPublicTimelineable(ctx context.Context, requester *gtsmodel.Account, status *gtsmodel.Status) (bool, error) {
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const vtype = cache.VisibilityTypePublic
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// By default we assume no auth.
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requesterID := noauth
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if requester != nil {
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// Use provided account ID.
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requesterID = requester.ID
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}
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visibility, err := f.state.Caches.Visibility.LoadOne("Type,RequesterID,ItemID", func() (*cache.CachedVisibility, error) {
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// Visibility not yet cached, perform timeline visibility lookup.
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visible, err := f.isStatusPublicTimelineable(ctx, requester, status)
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if err != nil {
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return nil, err
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}
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// Return visibility value.
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return &cache.CachedVisibility{
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ItemID: status.ID,
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RequesterID: requesterID,
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Type: vtype,
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Value: visible,
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}, nil
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}, vtype, requesterID, status.ID)
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if err != nil {
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if err == cache.SentinelError {
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// Filter-out our temporary
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// race-condition error.
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return false, nil
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}
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return false, err
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}
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return visibility.Value, nil
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}
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func (f *Filter) isStatusPublicTimelineable(ctx context.Context, requester *gtsmodel.Account, status *gtsmodel.Status) (bool, error) {
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if status.CreatedAt.After(time.Now().Add(24 * time.Hour)) {
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// Statuses made over 1 day in the future we don't show...
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log.Warnf(ctx, "status >24hrs in the future: %+v", status)
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return false, nil
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}
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// Don't show boosts on timeline.
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if status.BoostOfID != "" {
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return false, nil
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}
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// Check whether status is visible to requesting account.
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visible, err := f.StatusVisible(ctx, requester, status)
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if err != nil {
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return false, err
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}
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if !visible {
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log.Trace(ctx, "status not visible to timeline requester")
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return false, nil
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}
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for parent := status; parent.InReplyToURI != ""; {
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// Fetch next parent to lookup.
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parentID := parent.InReplyToID
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if parentID == "" {
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log.Warnf(ctx, "status not yet deref'd: %s", parent.InReplyToURI)
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return false, cache.SentinelError
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}
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// Get the next parent in the chain from DB.
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parent, err = f.state.DB.GetStatusByID(
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gtscontext.SetBarebones(ctx),
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parentID,
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)
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if err != nil {
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return false, gtserror.Newf("error getting status parent %s: %w", parentID, err)
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}
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if parent.AccountID != status.AccountID {
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// This is not a single author reply-chain-thread,
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// instead is an actualy conversation. Don't timeline.
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log.Trace(ctx, "ignoring multi-author reply-chain")
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return false, nil
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}
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}
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// This is either a visible status in a
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// single-author thread, or a visible top
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// level status. Show on public timeline.
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return true, nil
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}
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