gotosocial/internal/visibility/statushometimelineable.go

127 lines
4.8 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package visibility
import (
"context"
"fmt"
"time"
"codeberg.org/gruf/go-kv"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
"github.com/superseriousbusiness/gotosocial/internal/log"
)
func (f *filter) StatusHometimelineable(ctx context.Context, targetStatus *gtsmodel.Status, timelineOwnerAccount *gtsmodel.Account) (bool, error) {
l := log.WithFields(kv.Fields{{"statusID", targetStatus.ID}}...)
// don't timeline statuses more than 5 min in the future
maxID, err := id.NewULIDFromTime(time.Now().Add(5 * time.Minute))
if err != nil {
return false, err
}
if targetStatus.ID > maxID {
l.Debug("status not hometimelineable because it's from more than 5 minutes in the future")
return false, nil
}
// status owner should always be able to see their own status in their timeline so we can return early if this is the case
if targetStatus.AccountID == timelineOwnerAccount.ID {
return true, nil
}
v, err := f.StatusVisible(ctx, targetStatus, timelineOwnerAccount)
if err != nil {
return false, fmt.Errorf("StatusHometimelineable: error checking visibility of status with id %s: %s", targetStatus.ID, err)
}
if !v {
l.Debug("status is not hometimelineable because it's not visible to the requester")
return false, nil
}
for _, m := range targetStatus.Mentions {
if m.TargetAccountID == timelineOwnerAccount.ID {
// if we're mentioned we should be able to see the post
return true, nil
}
}
// check we follow the originator of the status
if targetStatus.Account == nil {
tsa, err := f.db.GetAccountByID(ctx, targetStatus.AccountID)
if err != nil {
return false, fmt.Errorf("StatusHometimelineable: error getting status author account with id %s: %s", targetStatus.AccountID, err)
}
targetStatus.Account = tsa
}
following, err := f.db.IsFollowing(ctx, timelineOwnerAccount, targetStatus.Account)
if err != nil {
return false, fmt.Errorf("StatusHometimelineable: error checking if %s follows %s: %s", timelineOwnerAccount.ID, targetStatus.AccountID, err)
}
if !following {
return false, nil
}
// Don't timeline a status whose parent hasn't been dereferenced yet or can't be dereferenced.
// If we have the reply to URI but don't have an ID for the replied-to account or the replied-to status in our database, we haven't dereferenced it yet.
if targetStatus.InReplyToURI != "" && (targetStatus.InReplyToID == "" || targetStatus.InReplyToAccountID == "") {
return false, nil
}
// if a status replies to an ID we know in the database, we need to check that parent status too
if targetStatus.InReplyToID != "" {
// pin the reply to status on to this status if it hasn't been done already
if targetStatus.InReplyTo == nil {
rs, err := f.db.GetStatusByID(ctx, targetStatus.InReplyToID)
if err != nil {
return false, fmt.Errorf("StatusHometimelineable: error getting replied to status with id %s: %s", targetStatus.InReplyToID, err)
}
targetStatus.InReplyTo = rs
}
// pin the reply to account on to this status if it hasn't been done already
if targetStatus.InReplyToAccount == nil {
ra, err := f.db.GetAccountByID(ctx, targetStatus.InReplyToAccountID)
if err != nil {
return false, fmt.Errorf("StatusHometimelineable: error getting replied to account with id %s: %s", targetStatus.InReplyToAccountID, err)
}
targetStatus.InReplyToAccount = ra
}
// if it's a reply to the timelineOwnerAccount, we don't need to check if the timelineOwnerAccount follows itself, just return true, they can see it
if targetStatus.InReplyToAccountID == timelineOwnerAccount.ID {
return true, nil
}
// make sure the parent status is also home timelineable, otherwise we shouldn't timeline this one either
parentStatusTimelineable, err := f.StatusHometimelineable(ctx, targetStatus.InReplyTo, timelineOwnerAccount)
if err != nil {
return false, fmt.Errorf("StatusHometimelineable: error checking timelineability of parent status %s of status %s: %s", targetStatus.InReplyToID, targetStatus.ID, err)
}
if !parentStatusTimelineable {
return false, nil
}
}
return true, nil
}