gotosocial/internal/db/bundb/status.go
tobi 268f252e0d
[feature] Fetch + display custom emoji in statuses from remote instances (#807)
* start implementing remote emoji fetcher

* update status where pk

* aaa

* tidy up a little

* check size limits for emojis

* thank you linter, i love you <3

* update swagger docs

* add emoji dereference test

* make emoji max sizes configurable

* normalize db.ErrAlreadyExists
2022-09-12 13:03:23 +02:00

396 lines
11 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"
"github.com/superseriousbusiness/gotosocial/internal/cache"
"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 *cache.StatusCache
// TODO: keep method definitions in same place but instead have receiver
// all point to one single "db" type, so they can all share methods
// and caches where necessary
accounts *accountDB
}
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,
func() (*gtsmodel.Status, bool) {
return s.cache.GetByID(id)
},
func(status *gtsmodel.Status) error {
return s.newStatusQ(status).Where("status.id = ?", id).Scan(ctx)
},
)
}
func (s *statusDB) GetStatusByURI(ctx context.Context, uri string) (*gtsmodel.Status, db.Error) {
return s.getStatus(
ctx,
func() (*gtsmodel.Status, bool) {
return s.cache.GetByURI(uri)
},
func(status *gtsmodel.Status) error {
return s.newStatusQ(status).Where("status.uri = ?", uri).Scan(ctx)
},
)
}
func (s *statusDB) GetStatusByURL(ctx context.Context, url string) (*gtsmodel.Status, db.Error) {
return s.getStatus(
ctx,
func() (*gtsmodel.Status, bool) {
return s.cache.GetByURL(url)
},
func(status *gtsmodel.Status) error {
return s.newStatusQ(status).Where("status.url = ?", url).Scan(ctx)
},
)
}
func (s *statusDB) getStatus(ctx context.Context, cacheGet func() (*gtsmodel.Status, bool), dbQuery func(*gtsmodel.Status) error) (*gtsmodel.Status, db.Error) {
// Attempt to fetch cached status
status, cached := cacheGet()
if !cached {
status = &gtsmodel.Status{}
// Not cached! Perform database query
err := dbQuery(status)
if err != nil {
return nil, s.conn.ProcessError(err)
}
// If there is boosted, fetch from DB also
if status.BoostOfID != "" {
boostOf, err := s.GetStatusByID(ctx, status.BoostOfID)
if err == nil {
status.BoostOf = boostOf
}
}
// Place in the cache
s.cache.Put(status)
}
// 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.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 {
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 {
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("id = ?", a.ID).
Exec(ctx); err != nil {
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) (*gtsmodel.Status, db.Error) {
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.errProc(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.errProc(err)
if !errors.Is(err, db.ErrAlreadyExists) {
return err
}
}
}
// change the status ID of the media attachments to this status
for _, a := range status.Attachments {
a.StatusID = status.ID
a.UpdatedAt = time.Now()
if _, err := tx.NewUpdate().Model(a).
Where("id = ?", a.ID).
Exec(ctx); err != nil {
return err
}
}
// Finally, update the status itself
if _, err := tx.NewUpdate().Model(status).WherePK().Exec(ctx); err != nil {
return err
}
s.cache.Put(status)
return nil
})
return status, err
}
func (s *statusDB) GetStatusParents(ctx context.Context, status *gtsmodel.Status, onlyDirect bool) ([]*gtsmodel.Status, db.Error) {
parents := []*gtsmodel.Status{}
s.statusParent(ctx, status, &parents, onlyDirect)
return parents, nil
}
func (s *statusDB) statusParent(ctx context.Context, status *gtsmodel.Status, foundStatuses *[]*gtsmodel.Status, onlyDirect bool) {
if status.InReplyToID == "" {
return
}
parentStatus, err := s.GetStatusByID(ctx, status.InReplyToID)
if err == nil {
*foundStatuses = append(*foundStatuses, parentStatus)
}
if onlyDirect {
return
}
s.statusParent(ctx, parentStatus, foundStatuses, false)
}
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) {
childIDs := []string{}
q := s.conn.
NewSelect().
Table("statuses").
Column("id").
Where("in_reply_to_id = ?", status.ID)
if minID != "" {
q = q.Where("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().Model(&gtsmodel.Status{}).Where("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().Model(&gtsmodel.Status{}).Where("boost_of_id = ?", status.ID).Count(ctx)
}
func (s *statusDB) CountStatusFaves(ctx context.Context, status *gtsmodel.Status) (int, db.Error) {
return s.conn.NewSelect().Model(&gtsmodel.StatusFave{}).Where("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().
Model(&gtsmodel.StatusFave{}).
Where("status_id = ?", status.ID).
Where("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().
Model(&gtsmodel.Status{}).
Where("boost_of_id = ?", status.ID).
Where("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().
Model(&gtsmodel.StatusMute{}).
Where("status_id = ?", status.ID).
Where("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().
Model(&gtsmodel.StatusBookmark{}).
Where("status_id = ?", status.ID).
Where("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("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("boost_of_id = ?", status.ID)
if err := q.Scan(ctx); err != nil {
return nil, s.conn.ProcessError(err)
}
return reblogs, nil
}