GoToSocial/internal/processing/fromcommon.go

488 lines
16 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 processing
import (
"context"
"fmt"
"strings"
"sync"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
"github.com/superseriousbusiness/gotosocial/internal/stream"
)
func (p *Processor) notifyStatus(ctx context.Context, status *gtsmodel.Status) error {
// if there are no mentions in this status then just bail
if len(status.MentionIDs) == 0 {
return nil
}
if status.Mentions == nil {
// there are mentions but they're not fully populated on the status yet so do this
menchies, err := p.db.GetMentions(ctx, status.MentionIDs)
if err != nil {
return fmt.Errorf("notifyStatus: error getting mentions for status %s from the db: %s", status.ID, err)
}
status.Mentions = menchies
}
// now we have mentions as full gtsmodel.Mention structs on the status we can continue
for _, m := range status.Mentions {
// make sure this is a local account, otherwise we don't need to create a notification for it
if m.TargetAccount == nil {
a, err := p.db.GetAccountByID(ctx, m.TargetAccountID)
if err != nil {
// we don't have the account or there's been an error
return fmt.Errorf("notifyStatus: error getting account with id %s from the db: %s", m.TargetAccountID, err)
}
m.TargetAccount = a
}
if m.TargetAccount.Domain != "" {
// not a local account so skip it
continue
}
// make sure a notif doesn't already exist for this mention
if err := p.db.GetWhere(ctx, []db.Where{
{Key: "notification_type", Value: gtsmodel.NotificationMention},
{Key: "target_account_id", Value: m.TargetAccountID},
{Key: "origin_account_id", Value: m.OriginAccountID},
{Key: "status_id", Value: m.StatusID},
}, &gtsmodel.Notification{}); err == nil {
// notification exists already so just continue
continue
} else if err != db.ErrNoEntries {
// there's a real error in the db
return fmt.Errorf("notifyStatus: error checking existence of notification for mention with id %s : %s", m.ID, err)
}
// if we've reached this point we know the mention is for a local account, and the notification doesn't exist, so create it
notif := &gtsmodel.Notification{
ID: id.NewULID(),
NotificationType: gtsmodel.NotificationMention,
TargetAccountID: m.TargetAccountID,
TargetAccount: m.TargetAccount,
OriginAccountID: status.AccountID,
OriginAccount: status.Account,
StatusID: status.ID,
Status: status,
}
if err := p.db.Put(ctx, notif); err != nil {
return fmt.Errorf("notifyStatus: error putting notification in database: %s", err)
}
// now stream the notification to the user
apiNotif, err := p.tc.NotificationToAPINotification(ctx, notif)
if err != nil {
return fmt.Errorf("notifyStatus: error converting notification to api representation: %s", err)
}
if err := p.stream.Notify(apiNotif, m.TargetAccount); err != nil {
return fmt.Errorf("notifyStatus: error streaming notification to account: %s", err)
}
}
return nil
}
func (p *Processor) notifyFollowRequest(ctx context.Context, followRequest *gtsmodel.FollowRequest) error {
// make sure we have the target account pinned on the follow request
if followRequest.TargetAccount == nil {
a, err := p.db.GetAccountByID(ctx, followRequest.TargetAccountID)
if err != nil {
return err
}
followRequest.TargetAccount = a
}
targetAccount := followRequest.TargetAccount
// return if this isn't a local account
if targetAccount.Domain != "" {
// this isn't a local account so we've got nothing to do here
return nil
}
notif := &gtsmodel.Notification{
ID: id.NewULID(),
NotificationType: gtsmodel.NotificationFollowRequest,
TargetAccountID: followRequest.TargetAccountID,
OriginAccountID: followRequest.AccountID,
}
if err := p.db.Put(ctx, notif); err != nil {
return fmt.Errorf("notifyFollowRequest: error putting notification in database: %s", err)
}
// now stream the notification to the user
apiNotif, err := p.tc.NotificationToAPINotification(ctx, notif)
if err != nil {
return fmt.Errorf("notifyStatus: error converting notification to api representation: %s", err)
}
if err := p.stream.Notify(apiNotif, targetAccount); err != nil {
return fmt.Errorf("notifyStatus: error streaming notification to account: %s", err)
}
return nil
}
func (p *Processor) notifyFollow(ctx context.Context, follow *gtsmodel.Follow, targetAccount *gtsmodel.Account) error {
// return if this isn't a local account
if targetAccount.Domain != "" {
return nil
}
// first remove the follow request notification
if err := p.db.DeleteWhere(ctx, []db.Where{
{Key: "notification_type", Value: gtsmodel.NotificationFollowRequest},
{Key: "target_account_id", Value: follow.TargetAccountID},
{Key: "origin_account_id", Value: follow.AccountID},
}, &gtsmodel.Notification{}); err != nil {
return fmt.Errorf("notifyFollow: error removing old follow request notification from database: %s", err)
}
// now create the new follow notification
notif := &gtsmodel.Notification{
ID: id.NewULID(),
NotificationType: gtsmodel.NotificationFollow,
TargetAccountID: follow.TargetAccountID,
TargetAccount: follow.TargetAccount,
OriginAccountID: follow.AccountID,
OriginAccount: follow.Account,
}
if err := p.db.Put(ctx, notif); err != nil {
return fmt.Errorf("notifyFollow: error putting notification in database: %s", err)
}
// now stream the notification to the user
apiNotif, err := p.tc.NotificationToAPINotification(ctx, notif)
if err != nil {
return fmt.Errorf("notifyStatus: error converting notification to api representation: %s", err)
}
if err := p.stream.Notify(apiNotif, targetAccount); err != nil {
return fmt.Errorf("notifyStatus: error streaming notification to account: %s", err)
}
return nil
}
func (p *Processor) notifyFave(ctx context.Context, fave *gtsmodel.StatusFave) error {
// ignore self-faves
if fave.TargetAccountID == fave.AccountID {
return nil
}
if fave.TargetAccount == nil {
a, err := p.db.GetAccountByID(ctx, fave.TargetAccountID)
if err != nil {
return err
}
fave.TargetAccount = a
}
targetAccount := fave.TargetAccount
// just return if target isn't a local account
if targetAccount.Domain != "" {
return nil
}
notif := &gtsmodel.Notification{
ID: id.NewULID(),
NotificationType: gtsmodel.NotificationFave,
TargetAccountID: fave.TargetAccountID,
TargetAccount: fave.TargetAccount,
OriginAccountID: fave.AccountID,
OriginAccount: fave.Account,
StatusID: fave.StatusID,
Status: fave.Status,
}
if err := p.db.Put(ctx, notif); err != nil {
return fmt.Errorf("notifyFave: error putting notification in database: %s", err)
}
// now stream the notification to the user
apiNotif, err := p.tc.NotificationToAPINotification(ctx, notif)
if err != nil {
return fmt.Errorf("notifyStatus: error converting notification to api representation: %s", err)
}
if err := p.stream.Notify(apiNotif, targetAccount); err != nil {
return fmt.Errorf("notifyStatus: error streaming notification to account: %s", err)
}
return nil
}
func (p *Processor) notifyAnnounce(ctx context.Context, status *gtsmodel.Status) error {
if status.BoostOfID == "" {
// not a boost, nothing to do
return nil
}
if status.BoostOf == nil {
boostedStatus, err := p.db.GetStatusByID(ctx, status.BoostOfID)
if err != nil {
return fmt.Errorf("notifyAnnounce: error getting status with id %s: %s", status.BoostOfID, err)
}
status.BoostOf = boostedStatus
}
if status.BoostOfAccount == nil {
boostedAcct, err := p.db.GetAccountByID(ctx, status.BoostOfAccountID)
if err != nil {
return fmt.Errorf("notifyAnnounce: error getting account with id %s: %s", status.BoostOfAccountID, err)
}
status.BoostOf.Account = boostedAcct
status.BoostOfAccount = boostedAcct
}
if status.BoostOfAccount.Domain != "" {
// remote account, nothing to do
return nil
}
if status.BoostOfAccountID == status.AccountID {
// it's a self boost, nothing to do
return nil
}
// make sure a notif doesn't already exist for this announce
err := p.db.GetWhere(ctx, []db.Where{
{Key: "notification_type", Value: gtsmodel.NotificationReblog},
{Key: "target_account_id", Value: status.BoostOfAccountID},
{Key: "origin_account_id", Value: status.AccountID},
{Key: "status_id", Value: status.ID},
}, &gtsmodel.Notification{})
if err == nil {
// notification exists already so just bail
return nil
}
// now create the new reblog notification
notif := &gtsmodel.Notification{
ID: id.NewULID(),
NotificationType: gtsmodel.NotificationReblog,
TargetAccountID: status.BoostOfAccountID,
TargetAccount: status.BoostOfAccount,
OriginAccountID: status.AccountID,
OriginAccount: status.Account,
StatusID: status.ID,
Status: status,
}
if err := p.db.Put(ctx, notif); err != nil {
return fmt.Errorf("notifyAnnounce: error putting notification in database: %s", err)
}
// now stream the notification to the user
apiNotif, err := p.tc.NotificationToAPINotification(ctx, notif)
if err != nil {
return fmt.Errorf("notifyStatus: error converting notification to api representation: %s", err)
}
if err := p.stream.Notify(apiNotif, status.BoostOfAccount); err != nil {
return fmt.Errorf("notifyStatus: error streaming notification to account: %s", err)
}
return nil
}
// timelineStatus processes the given new status and inserts it into
// the HOME timelines of accounts that follow the status author.
func (p *Processor) timelineStatus(ctx context.Context, status *gtsmodel.Status) error {
// make sure the author account is pinned onto the status
if status.Account == nil {
a, err := p.db.GetAccountByID(ctx, status.AccountID)
if err != nil {
return fmt.Errorf("timelineStatus: error getting author account with id %s: %s", status.AccountID, err)
}
status.Account = a
}
// get local followers of the account that posted the status
follows, err := p.db.GetAccountFollowedBy(ctx, status.AccountID, true)
if err != nil {
return fmt.Errorf("timelineStatus: error getting followers for account id %s: %s", status.AccountID, err)
}
// if the poster is local, add a fake entry for them to the followers list so they can see their own status in their timeline
if status.Account.Domain == "" {
follows = append(follows, &gtsmodel.Follow{
AccountID: status.AccountID,
Account: status.Account,
})
}
wg := sync.WaitGroup{}
wg.Add(len(follows))
errors := make(chan error, len(follows))
for _, f := range follows {
go p.timelineStatusForAccount(ctx, status, f.AccountID, errors, &wg)
}
// read any errors that come in from the async functions
errs := []string{}
go func(errs []string) {
for range errors {
if e := <-errors; e != nil {
errs = append(errs, e.Error())
}
}
}(errs)
// wait til all functions have returned and then close the error channel
wg.Wait()
close(errors)
if len(errs) != 0 {
// we have at least one error
return fmt.Errorf("timelineStatus: one or more errors timelining statuses: %s", strings.Join(errs, ";"))
}
return nil
}
// timelineStatusForAccount puts the given status in the HOME timeline
// of the account with given accountID, if it's hometimelineable.
//
// If the status was inserted into the home timeline of the given account,
// it will also be streamed via websockets to the user.
func (p *Processor) timelineStatusForAccount(ctx context.Context, status *gtsmodel.Status, accountID string, errors chan error, wg *sync.WaitGroup) {
defer wg.Done()
// get the timeline owner account
timelineAccount, err := p.db.GetAccountByID(ctx, accountID)
if err != nil {
errors <- fmt.Errorf("timelineStatusForAccount: error getting account for timeline with id %s: %s", accountID, err)
return
}
// make sure the status is timelineable
timelineable, err := p.filter.StatusHometimelineable(ctx, status, timelineAccount)
if err != nil {
errors <- fmt.Errorf("timelineStatusForAccount: error getting timelineability for status for timeline with id %s: %s", accountID, err)
return
}
if !timelineable {
return
}
// stick the status in the timeline for the account and then immediately prepare it so they can see it right away
inserted, err := p.statusTimelines.IngestAndPrepare(ctx, status, timelineAccount.ID)
if err != nil {
errors <- fmt.Errorf("timelineStatusForAccount: error ingesting status %s: %s", status.ID, err)
return
}
// the status was inserted so stream it to the user
if inserted {
apiStatus, err := p.tc.StatusToAPIStatus(ctx, status, timelineAccount)
if err != nil {
errors <- fmt.Errorf("timelineStatusForAccount: error converting status %s to frontend representation: %s", status.ID, err)
return
}
if err := p.stream.Update(apiStatus, timelineAccount, stream.TimelineHome); err != nil {
errors <- fmt.Errorf("timelineStatusForAccount: error streaming status %s: %s", status.ID, err)
}
}
}
// deleteStatusFromTimelines completely removes the given status from all timelines.
// It will also stream deletion of the status to all open streams.
func (p *Processor) deleteStatusFromTimelines(ctx context.Context, status *gtsmodel.Status) error {
if err := p.statusTimelines.WipeItemFromAllTimelines(ctx, status.ID); err != nil {
return err
}
return p.stream.Delete(status.ID)
}
// wipeStatus contains common logic used to totally delete a status
// + all its attachments, notifications, boosts, and timeline entries.
func (p *Processor) wipeStatus(ctx context.Context, statusToDelete *gtsmodel.Status, deleteAttachments bool) error {
// either delete all attachments for this status, or simply
// unattach all attachments for this status, so they'll be
// cleaned later by a separate process; reason to unattach rather
// than delete is that the poster might want to reattach them
// to another status immediately (in case of delete + redraft)
if deleteAttachments {
for _, a := range statusToDelete.AttachmentIDs {
if err := p.media.Delete(ctx, a); err != nil {
return err
}
}
} else {
for _, a := range statusToDelete.AttachmentIDs {
if _, err := p.media.Unattach(ctx, statusToDelete.Account, a); err != nil {
return err
}
}
}
// delete all mention entries generated by this status
for _, m := range statusToDelete.MentionIDs {
if err := p.db.DeleteByID(ctx, m, &gtsmodel.Mention{}); err != nil {
return err
}
}
// delete all notification entries generated by this status
if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "status_id", Value: statusToDelete.ID}}, &[]*gtsmodel.Notification{}); err != nil {
return err
}
// delete all bookmarks that point to this status
if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "status_id", Value: statusToDelete.ID}}, &[]*gtsmodel.StatusBookmark{}); err != nil {
return err
}
// delete all boosts for this status + remove them from timelines
if boosts, err := p.db.GetStatusReblogs(ctx, statusToDelete); err == nil {
for _, b := range boosts {
if err := p.deleteStatusFromTimelines(ctx, b); err != nil {
return err
}
if err := p.db.DeleteStatusByID(ctx, b.ID); err != nil {
return err
}
}
}
// delete this status from any and all timelines
if err := p.deleteStatusFromTimelines(ctx, statusToDelete); err != nil {
return err
}
// delete the status itself
if err := p.db.DeleteStatusByID(ctx, statusToDelete.ID); err != nil {
return err
}
return nil
}