mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-05 01:52:46 +00:00
e3c2b790fd
* when appending log field only do so by minimal amount * move slice utils to separate package to fix import cycle, add GrowJust() and AppendJust() functions * fix GrowJust() not returning slice of same length * improved xslices tests * make AppendJust() test check for slice contents, fix AppendJust() final copying behaviour * add a +1 with field growth to try minimise allocation for log 'msg' field
304 lines
8.4 KiB
Go
304 lines
8.4 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 bundb
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import (
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"context"
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"errors"
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"slices"
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"time"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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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/paging"
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"github.com/superseriousbusiness/gotosocial/internal/state"
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"github.com/superseriousbusiness/gotosocial/internal/util/xslices"
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"github.com/uptrace/bun"
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)
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type mediaDB struct {
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db *bun.DB
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state *state.State
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}
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func (m *mediaDB) GetAttachmentByID(ctx context.Context, id string) (*gtsmodel.MediaAttachment, error) {
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return m.getAttachment(
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ctx,
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"ID",
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func(attachment *gtsmodel.MediaAttachment) error {
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return m.db.NewSelect().
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Model(attachment).
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Where("? = ?", bun.Ident("media_attachment.id"), id).
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Scan(ctx)
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},
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id,
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)
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}
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func (m *mediaDB) GetAttachmentsByIDs(ctx context.Context, ids []string) ([]*gtsmodel.MediaAttachment, error) {
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// Load all media IDs via cache loader callbacks.
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media, err := m.state.Caches.DB.Media.LoadIDs("ID",
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ids,
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func(uncached []string) ([]*gtsmodel.MediaAttachment, error) {
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// Preallocate expected length of uncached media attachments.
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media := make([]*gtsmodel.MediaAttachment, 0, len(uncached))
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// Perform database query scanning
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// the remaining (uncached) IDs.
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if err := m.db.NewSelect().
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Model(&media).
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Where("? IN (?)", bun.Ident("id"), bun.In(uncached)).
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Scan(ctx); err != nil {
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return nil, err
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}
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return media, nil
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},
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)
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if err != nil {
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return nil, err
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}
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// Reorder the media by their
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// IDs to ensure in correct order.
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getID := func(m *gtsmodel.MediaAttachment) string { return m.ID }
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xslices.OrderBy(media, ids, getID)
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return media, nil
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}
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func (m *mediaDB) getAttachment(ctx context.Context, lookup string, dbQuery func(*gtsmodel.MediaAttachment) error, keyParts ...any) (*gtsmodel.MediaAttachment, error) {
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return m.state.Caches.DB.Media.LoadOne(lookup, func() (*gtsmodel.MediaAttachment, error) {
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var attachment gtsmodel.MediaAttachment
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// Not cached! Perform database query
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if err := dbQuery(&attachment); err != nil {
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return nil, err
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}
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return &attachment, nil
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}, keyParts...)
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}
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func (m *mediaDB) PutAttachment(ctx context.Context, media *gtsmodel.MediaAttachment) error {
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return m.state.Caches.DB.Media.Store(media, func() error {
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_, err := m.db.NewInsert().Model(media).Exec(ctx)
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return err
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})
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}
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func (m *mediaDB) UpdateAttachment(ctx context.Context, media *gtsmodel.MediaAttachment, columns ...string) error {
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media.UpdatedAt = time.Now()
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if len(columns) > 0 {
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// If we're updating by column, ensure "updated_at" is included.
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columns = append(columns, "updated_at")
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}
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return m.state.Caches.DB.Media.Store(media, func() error {
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_, err := m.db.NewUpdate().
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Model(media).
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Where("? = ?", bun.Ident("media_attachment.id"), media.ID).
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Column(columns...).
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Exec(ctx)
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return err
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})
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}
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func (m *mediaDB) DeleteAttachment(ctx context.Context, id string) error {
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// Gather necessary fields from
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// deleted for cache invaliation.
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var deleted gtsmodel.MediaAttachment
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deleted.ID = id
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// Delete media attachment and update related models in new transaction.
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err := m.db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
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// Initially, delete the media model,
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// returning the required fields we need.
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if _, err := tx.NewDelete().
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Model(&deleted).
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Where("? = ?", bun.Ident("id"), id).
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Returning("?, ?, ?, ?",
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bun.Ident("account_id"),
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bun.Ident("status_id"),
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bun.Ident("avatar"),
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bun.Ident("header"),
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).
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Exec(ctx); err != nil {
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return gtserror.Newf("error deleting media: %w", err)
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}
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// If media was attached to account,
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// we need to remove link from account.
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if deleted.AccountID != "" {
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var account gtsmodel.Account
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// Get related account model.
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if _, err := tx.NewSelect().
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Model(&account).
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Where("? = ?", bun.Ident("id"), deleted.AccountID).
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Exec(ctx); err != nil && !errors.Is(err, db.ErrNoEntries) {
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return gtserror.Newf("error selecting account: %w", err)
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}
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var set func(*bun.UpdateQuery) *bun.UpdateQuery
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switch {
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case *deleted.Avatar && account.AvatarMediaAttachmentID == id:
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set = func(q *bun.UpdateQuery) *bun.UpdateQuery {
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return q.Set("? = NULL", bun.Ident("avatar_media_attachment_id"))
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}
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case *deleted.Header && account.HeaderMediaAttachmentID == id:
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set = func(q *bun.UpdateQuery) *bun.UpdateQuery {
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return q.Set("? = NULL", bun.Ident("header_media_attachment_id"))
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}
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}
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if set != nil {
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// Note: this handles not found.
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//
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// Update the account model.
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q := tx.NewUpdate().
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Table("accounts").
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Where("? = ?", bun.Ident("id"), account.ID)
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if _, err := set(q).Exec(ctx); err != nil {
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return gtserror.Newf("error updating account: %w", err)
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}
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}
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}
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// If media was attached to a status,
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// we need to remove link from status.
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if deleted.StatusID != "" {
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var status gtsmodel.Status
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// Get related status model.
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if _, err := tx.NewSelect().
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Model(&status).
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Where("? = ?", bun.Ident("id"), deleted.StatusID).
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Exec(ctx); err != nil && !errors.Is(err, db.ErrNoEntries) {
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return gtserror.Newf("error selecting status: %w", err)
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}
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// Delete all instances of this deleted media ID from status attachments.
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updatedIDs := slices.DeleteFunc(status.AttachmentIDs, func(s string) bool {
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return s == id
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})
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if len(updatedIDs) != len(status.AttachmentIDs) {
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// Note: this handles not found.
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//
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// Attachments changed, update the status.
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if _, err := tx.NewUpdate().
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Table("statuses").
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Where("? = ?", bun.Ident("id"), status.ID).
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Set("? = ?", bun.Ident("attachment_ids"), updatedIDs).
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Exec(ctx); err != nil {
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return gtserror.Newf("error updating status: %w", err)
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}
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}
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}
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return nil
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})
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// Invalidate cached media with ID, manually
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// call invalidate hook in case not in cache.
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m.state.Caches.DB.Media.Invalidate("ID", id)
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m.state.Caches.OnInvalidateMedia(&deleted)
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return err
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}
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func (m *mediaDB) GetAttachments(ctx context.Context, page *paging.Page) ([]*gtsmodel.MediaAttachment, error) {
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maxID := page.GetMax()
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limit := page.GetLimit()
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attachmentIDs := make([]string, 0, limit)
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q := m.db.NewSelect().
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Table("media_attachments").
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Column("id").
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Order("id DESC")
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if maxID != "" {
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q = q.Where("id < ?", maxID)
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}
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if limit != 0 {
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q = q.Limit(limit)
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}
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if err := q.Scan(ctx, &attachmentIDs); err != nil {
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return nil, err
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}
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return m.GetAttachmentsByIDs(ctx, attachmentIDs)
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}
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func (m *mediaDB) GetRemoteAttachments(ctx context.Context, page *paging.Page) ([]*gtsmodel.MediaAttachment, error) {
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maxID := page.GetMax()
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limit := page.GetLimit()
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attachmentIDs := make([]string, 0, limit)
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q := m.db.NewSelect().
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Table("media_attachments").
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Column("id").
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Where("remote_url IS NOT NULL").
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Order("id DESC")
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if maxID != "" {
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q = q.Where("id < ?", maxID)
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}
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if limit != 0 {
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q = q.Limit(limit)
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}
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if err := q.Scan(ctx, &attachmentIDs); err != nil {
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return nil, err
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}
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return m.GetAttachmentsByIDs(ctx, attachmentIDs)
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}
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func (m *mediaDB) GetCachedAttachmentsOlderThan(ctx context.Context, olderThan time.Time, limit int) ([]*gtsmodel.MediaAttachment, error) {
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attachmentIDs := make([]string, 0, limit)
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q := m.db.
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NewSelect().
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Table("media_attachments").
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Column("id").
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Where("cached = true").
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Where("remote_url IS NOT NULL").
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Where("created_at < ?", olderThan).
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Order("created_at DESC")
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if limit != 0 {
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q = q.Limit(limit)
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}
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if err := q.Scan(ctx, &attachmentIDs); err != nil {
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return nil, err
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}
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return m.GetAttachmentsByIDs(ctx, attachmentIDs)
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}
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