gotosocial/internal/db/bundb/status.go
kim 8598dea98b
[chore] update database caching library (#1040)
* convert most of the caches to use result.Cache{}

* add caching of emojis

* fix issues causing failing tests

* update go-cache/v2 instances with v3

* fix getnotification

* add a note about the left-in StatusCreate comment

* update EmojiCategory db access to use new result.Cache{}

* fix possible panic in getstatusparents

* further proof that kim is not stinky
2022-11-15 18:45:15 +00:00

501 lines
14 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2022 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 bundb
import (
"container/list"
"context"
"database/sql"
"errors"
"time"
"codeberg.org/gruf/go-cache/v3/result"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/uptrace/bun"
)
type statusDB struct {
conn *DBConn
cache *result.Cache[*gtsmodel.Status]
accounts *accountDB
}
func (s *statusDB) init() {
// Initialize status result cache
s.cache = result.NewSized([]result.Lookup{
{Name: "ID"},
{Name: "URI"},
{Name: "URL"},
}, func(s1 *gtsmodel.Status) *gtsmodel.Status {
s2 := new(gtsmodel.Status)
*s2 = *s1
return s2
}, 1000)
// Set cache TTL and start sweep routine
s.cache.SetTTL(time.Minute*5, false)
s.cache.Start(time.Second * 10)
}
func (s *statusDB) newStatusQ(status interface{}) *bun.SelectQuery {
return s.conn.
NewSelect().
Model(status).
Relation("Attachments").
Relation("Tags").
Relation("Mentions").
Relation("Emojis").
Relation("Account").
Relation("InReplyToAccount").
Relation("BoostOfAccount").
Relation("CreatedWithApplication")
}
func (s *statusDB) newFaveQ(faves interface{}) *bun.SelectQuery {
return s.conn.
NewSelect().
Model(faves).
Relation("Account").
Relation("TargetAccount").
Relation("Status")
}
func (s *statusDB) GetStatusByID(ctx context.Context, id string) (*gtsmodel.Status, db.Error) {
return s.getStatus(
ctx,
"ID",
func(status *gtsmodel.Status) error {
return s.newStatusQ(status).Where("? = ?", bun.Ident("status.id"), id).Scan(ctx)
},
id,
)
}
func (s *statusDB) GetStatusByURI(ctx context.Context, uri string) (*gtsmodel.Status, db.Error) {
return s.getStatus(
ctx,
"URI",
func(status *gtsmodel.Status) error {
return s.newStatusQ(status).Where("? = ?", bun.Ident("status.uri"), uri).Scan(ctx)
},
uri,
)
}
func (s *statusDB) GetStatusByURL(ctx context.Context, url string) (*gtsmodel.Status, db.Error) {
return s.getStatus(
ctx,
"URL",
func(status *gtsmodel.Status) error {
return s.newStatusQ(status).Where("? = ?", bun.Ident("status.url"), url).Scan(ctx)
},
url,
)
}
func (s *statusDB) getStatus(ctx context.Context, lookup string, dbQuery func(*gtsmodel.Status) error, keyParts ...any) (*gtsmodel.Status, db.Error) {
// Fetch status from database cache with loader callback
status, err := s.cache.Load(lookup, func() (*gtsmodel.Status, error) {
var status gtsmodel.Status
// Not cached! Perform database query
if err := dbQuery(&status); err != nil {
return nil, s.conn.ProcessError(err)
}
// If there is boosted, fetch from DB also
if status.BoostOfID != "" {
status.BoostOf = &gtsmodel.Status{}
err := s.newStatusQ(status.BoostOf).
Where("? = ?", bun.Ident("status.id"), status.BoostOfID).
Scan(ctx)
if err != nil {
return nil, s.conn.ProcessError(err)
}
}
return &status, nil
}, keyParts...)
if err != nil {
// error already processed
return nil, err
}
// Set the status author account
author, err := s.accounts.GetAccountByID(ctx, status.AccountID)
if err != nil {
return nil, err
}
// Return the prepared status
status.Account = author
return status, nil
}
func (s *statusDB) PutStatus(ctx context.Context, status *gtsmodel.Status) db.Error {
return s.cache.Store(status, func() error {
// It is safe to run this database transaction within cache.Store
// as the cache does not attempt a mutex lock until AFTER hook.
//
return s.conn.RunInTx(ctx, func(tx bun.Tx) error {
// create links between this status and any emojis it uses
for _, i := range status.EmojiIDs {
if _, err := tx.
NewInsert().
Model(&gtsmodel.StatusToEmoji{
StatusID: status.ID,
EmojiID: i,
}).Exec(ctx); err != nil {
err = s.conn.ProcessError(err)
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// create links between this status and any tags it uses
for _, i := range status.TagIDs {
if _, err := tx.
NewInsert().
Model(&gtsmodel.StatusToTag{
StatusID: status.ID,
TagID: i,
}).Exec(ctx); err != nil {
err = s.conn.ProcessError(err)
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// change the status ID of the media attachments to the new status
for _, a := range status.Attachments {
a.StatusID = status.ID
a.UpdatedAt = time.Now()
if _, err := tx.
NewUpdate().
Model(a).
Where("? = ?", bun.Ident("media_attachment.id"), a.ID).
Exec(ctx); err != nil {
err = s.conn.ProcessError(err)
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// Finally, insert the status
_, err := tx.NewInsert().Model(status).Exec(ctx)
return err
})
})
}
func (s *statusDB) UpdateStatus(ctx context.Context, status *gtsmodel.Status) db.Error {
if err := s.conn.RunInTx(ctx, func(tx bun.Tx) error {
// create links between this status and any emojis it uses
for _, i := range status.EmojiIDs {
if _, err := tx.
NewInsert().
Model(&gtsmodel.StatusToEmoji{
StatusID: status.ID,
EmojiID: i,
}).Exec(ctx); err != nil {
err = s.conn.ProcessError(err)
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// create links between this status and any tags it uses
for _, i := range status.TagIDs {
if _, err := tx.
NewInsert().
Model(&gtsmodel.StatusToTag{
StatusID: status.ID,
TagID: i,
}).Exec(ctx); err != nil {
err = s.conn.ProcessError(err)
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// change the status ID of the media attachments to the new status
for _, a := range status.Attachments {
a.StatusID = status.ID
a.UpdatedAt = time.Now()
if _, err := tx.
NewUpdate().
Model(a).
Where("? = ?", bun.Ident("media_attachment.id"), a.ID).
Exec(ctx); err != nil {
err = s.conn.ProcessError(err)
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// Finally, insert the status
_, err := tx.
NewUpdate().
Model(status).
Where("? = ?", bun.Ident("status.id"), status.ID).
Exec(ctx)
return err
}); err != nil {
return err
}
// Drop any old value from cache by this ID
s.cache.Invalidate("ID", status.ID)
return nil
}
func (s *statusDB) DeleteStatusByID(ctx context.Context, id string) db.Error {
if err := s.conn.RunInTx(ctx, func(tx bun.Tx) error {
// delete links between this status and any emojis it uses
if _, err := tx.
NewDelete().
TableExpr("? AS ?", bun.Ident("status_to_emojis"), bun.Ident("status_to_emoji")).
Where("? = ?", bun.Ident("status_to_emoji.status_id"), id).
Exec(ctx); err != nil {
return err
}
// delete links between this status and any tags it uses
if _, err := tx.
NewDelete().
TableExpr("? AS ?", bun.Ident("status_to_tags"), bun.Ident("status_to_tag")).
Where("? = ?", bun.Ident("status_to_tag.status_id"), id).
Exec(ctx); err != nil {
return err
}
// delete the status itself
if _, err := tx.
NewDelete().
TableExpr("? AS ?", bun.Ident("statuses"), bun.Ident("status")).
Where("? = ?", bun.Ident("status.id"), id).
Exec(ctx); err != nil {
return err
}
return nil
}); err != nil {
return err
}
// Drop any old value from cache by this ID
s.cache.Invalidate("ID", id)
return nil
}
func (s *statusDB) GetStatusParents(ctx context.Context, status *gtsmodel.Status, onlyDirect bool) ([]*gtsmodel.Status, db.Error) {
if onlyDirect {
// Only want the direct parent, no further than first level
parent, err := s.GetStatusByID(ctx, status.InReplyToID)
if err != nil {
return nil, err
}
return []*gtsmodel.Status{parent}, nil
}
var parents []*gtsmodel.Status
for id := status.InReplyToID; id != ""; {
parent, err := s.GetStatusByID(ctx, id)
if err != nil {
return nil, err
}
// Append parent to slice
parents = append(parents, parent)
// Set the next parent ID
id = parent.InReplyToID
}
return parents, nil
}
func (s *statusDB) GetStatusChildren(ctx context.Context, status *gtsmodel.Status, onlyDirect bool, minID string) ([]*gtsmodel.Status, db.Error) {
foundStatuses := &list.List{}
foundStatuses.PushFront(status)
s.statusChildren(ctx, status, foundStatuses, onlyDirect, minID)
children := []*gtsmodel.Status{}
for e := foundStatuses.Front(); e != nil; e = e.Next() {
// only append children, not the overall parent status
entry, ok := e.Value.(*gtsmodel.Status)
if !ok {
log.Panic("GetStatusChildren: found status could not be asserted to *gtsmodel.Status")
}
if entry.ID != status.ID {
children = append(children, entry)
}
}
return children, nil
}
func (s *statusDB) statusChildren(ctx context.Context, status *gtsmodel.Status, foundStatuses *list.List, onlyDirect bool, minID string) {
var childIDs []string
q := s.conn.
NewSelect().
TableExpr("? AS ?", bun.Ident("statuses"), bun.Ident("status")).
Column("status.id").
Where("? = ?", bun.Ident("status.in_reply_to_id"), status.ID)
if minID != "" {
q = q.Where("? > ?", bun.Ident("status.id"), minID)
}
if err := q.Scan(ctx, &childIDs); err != nil {
if err != sql.ErrNoRows {
log.Errorf("statusChildren: error getting children for %q: %v", status.ID, err)
}
return
}
for _, id := range childIDs {
// Fetch child with ID from database
child, err := s.GetStatusByID(ctx, id)
if err != nil {
log.Errorf("statusChildren: error getting child status %q: %v", id, err)
continue
}
insertLoop:
for e := foundStatuses.Front(); e != nil; e = e.Next() {
entry, ok := e.Value.(*gtsmodel.Status)
if !ok {
log.Panic("statusChildren: found status could not be asserted to *gtsmodel.Status")
}
if child.InReplyToAccountID != "" && entry.ID == child.InReplyToID {
foundStatuses.InsertAfter(child, e)
break insertLoop
}
}
// if we're not only looking for direct children of status, then do the same children-finding
// operation for the found child status too.
if !onlyDirect {
s.statusChildren(ctx, child, foundStatuses, false, minID)
}
}
}
func (s *statusDB) CountStatusReplies(ctx context.Context, status *gtsmodel.Status) (int, db.Error) {
return s.conn.
NewSelect().
TableExpr("? AS ?", bun.Ident("statuses"), bun.Ident("status")).
Where("? = ?", bun.Ident("status.in_reply_to_id"), status.ID).
Count(ctx)
}
func (s *statusDB) CountStatusReblogs(ctx context.Context, status *gtsmodel.Status) (int, db.Error) {
return s.conn.
NewSelect().
TableExpr("? AS ?", bun.Ident("statuses"), bun.Ident("status")).
Where("? = ?", bun.Ident("status.boost_of_id"), status.ID).
Count(ctx)
}
func (s *statusDB) CountStatusFaves(ctx context.Context, status *gtsmodel.Status) (int, db.Error) {
return s.conn.
NewSelect().
TableExpr("? AS ?", bun.Ident("status_faves"), bun.Ident("status_fave")).
Where("? = ?", bun.Ident("status_fave.status_id"), status.ID).
Count(ctx)
}
func (s *statusDB) IsStatusFavedBy(ctx context.Context, status *gtsmodel.Status, accountID string) (bool, db.Error) {
q := s.conn.
NewSelect().
TableExpr("? AS ?", bun.Ident("status_faves"), bun.Ident("status_fave")).
Where("? = ?", bun.Ident("status_fave.status_id"), status.ID).
Where("? = ?", bun.Ident("status_fave.account_id"), accountID)
return s.conn.Exists(ctx, q)
}
func (s *statusDB) IsStatusRebloggedBy(ctx context.Context, status *gtsmodel.Status, accountID string) (bool, db.Error) {
q := s.conn.
NewSelect().
TableExpr("? AS ?", bun.Ident("statuses"), bun.Ident("status")).
Where("? = ?", bun.Ident("status.boost_of_id"), status.ID).
Where("? = ?", bun.Ident("status.account_id"), accountID)
return s.conn.Exists(ctx, q)
}
func (s *statusDB) IsStatusMutedBy(ctx context.Context, status *gtsmodel.Status, accountID string) (bool, db.Error) {
q := s.conn.
NewSelect().
TableExpr("? AS ?", bun.Ident("status_mutes"), bun.Ident("status_mute")).
Where("? = ?", bun.Ident("status_mute.status_id"), status.ID).
Where("? = ?", bun.Ident("status_mute.account_id"), accountID)
return s.conn.Exists(ctx, q)
}
func (s *statusDB) IsStatusBookmarkedBy(ctx context.Context, status *gtsmodel.Status, accountID string) (bool, db.Error) {
q := s.conn.
NewSelect().
TableExpr("? AS ?", bun.Ident("status_bookmarks"), bun.Ident("status_bookmark")).
Where("? = ?", bun.Ident("status_bookmark.status_id"), status.ID).
Where("? = ?", bun.Ident("status_bookmark.account_id"), accountID)
return s.conn.Exists(ctx, q)
}
func (s *statusDB) GetStatusFaves(ctx context.Context, status *gtsmodel.Status) ([]*gtsmodel.StatusFave, db.Error) {
faves := []*gtsmodel.StatusFave{}
q := s.
newFaveQ(&faves).
Where("? = ?", bun.Ident("status_fave.status_id"), status.ID)
if err := q.Scan(ctx); err != nil {
return nil, s.conn.ProcessError(err)
}
return faves, nil
}
func (s *statusDB) GetStatusReblogs(ctx context.Context, status *gtsmodel.Status) ([]*gtsmodel.Status, db.Error) {
reblogs := []*gtsmodel.Status{}
q := s.
newStatusQ(&reblogs).
Where("? = ?", bun.Ident("status.boost_of_id"), status.ID)
if err := q.Scan(ctx); err != nil {
return nil, s.conn.ProcessError(err)
}
return reblogs, nil
}