gotosocial/internal/processing/timeline/list.go

160 lines
5.6 KiB
Go

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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 timeline
import (
"context"
"errors"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/state"
"github.com/superseriousbusiness/gotosocial/internal/timeline"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/internal/util"
"github.com/superseriousbusiness/gotosocial/internal/visibility"
)
// ListTimelineGrab returns a function that satisfies GrabFunction for list timelines.
func ListTimelineGrab(state *state.State) timeline.GrabFunction {
return func(ctx context.Context, listID string, maxID string, sinceID string, minID string, limit int) ([]timeline.Timelineable, bool, error) {
statuses, err := state.DB.GetListTimeline(ctx, listID, maxID, sinceID, minID, limit)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
err = gtserror.Newf("error getting statuses from db: %w", err)
return nil, false, err
}
count := len(statuses)
if count == 0 {
// We just don't have enough statuses
// left in the db so return stop = true.
return nil, true, nil
}
items := make([]timeline.Timelineable, count)
for i, s := range statuses {
items[i] = s
}
return items, false, nil
}
}
// ListTimelineFilter returns a function that satisfies FilterFunction for list timelines.
func ListTimelineFilter(state *state.State, filter *visibility.Filter) timeline.FilterFunction {
return func(ctx context.Context, listID string, item timeline.Timelineable) (shouldIndex bool, err error) {
status, ok := item.(*gtsmodel.Status)
if !ok {
err = gtserror.New("could not convert item to *gtsmodel.Status")
return false, err
}
list, err := state.DB.GetListByID(ctx, listID)
if err != nil {
err = gtserror.Newf("error getting list with id %s: %w", listID, err)
return false, err
}
requestingAccount, err := state.DB.GetAccountByID(ctx, list.AccountID)
if err != nil {
err = gtserror.Newf("error getting account with id %s: %w", list.AccountID, err)
return false, err
}
timelineable, err := filter.StatusHomeTimelineable(ctx, requestingAccount, status)
if err != nil {
err = gtserror.Newf("error checking hometimelineability of status %s for account %s: %w", status.ID, list.AccountID, err)
return false, err
}
return timelineable, nil
}
}
// ListTimelineStatusPrepare returns a function that satisfies PrepareFunction for list timelines.
func ListTimelineStatusPrepare(state *state.State, tc typeutils.TypeConverter) timeline.PrepareFunction {
return func(ctx context.Context, listID string, itemID string) (timeline.Preparable, error) {
status, err := state.DB.GetStatusByID(ctx, itemID)
if err != nil {
err = gtserror.Newf("error getting status with id %s: %w", itemID, err)
return nil, err
}
list, err := state.DB.GetListByID(ctx, listID)
if err != nil {
err = gtserror.Newf("error getting list with id %s: %w", listID, err)
return nil, err
}
requestingAccount, err := state.DB.GetAccountByID(ctx, list.AccountID)
if err != nil {
err = gtserror.Newf("error getting account with id %s: %w", list.AccountID, err)
return nil, err
}
return tc.StatusToAPIStatus(ctx, status, requestingAccount)
}
}
func (p *Processor) ListTimelineGet(ctx context.Context, authed *oauth.Auth, listID string, maxID string, sinceID string, minID string, limit int) (*apimodel.PageableResponse, gtserror.WithCode) {
// Ensure list exists + is owned by this account.
list, err := p.state.DB.GetListByID(ctx, listID)
if err != nil {
if errors.Is(err, db.ErrNoEntries) {
return nil, gtserror.NewErrorNotFound(err)
}
return nil, gtserror.NewErrorInternalError(err)
}
if list.AccountID != authed.Account.ID {
err = gtserror.Newf("list with id %s does not belong to account %s", list.ID, authed.Account.ID)
return nil, gtserror.NewErrorNotFound(err)
}
statuses, err := p.state.Timelines.List.GetTimeline(ctx, listID, maxID, sinceID, minID, limit, false)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
err = gtserror.Newf("error getting statuses: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
count := len(statuses)
if count == 0 {
return util.EmptyPageableResponse(), nil
}
var (
items = make([]interface{}, count)
nextMaxIDValue = statuses[count-1].GetID()
prevMinIDValue = statuses[0].GetID()
)
for i := range statuses {
items[i] = statuses[i]
}
return util.PackagePageableResponse(util.PageableResponseParams{
Items: items,
Path: "/api/v1/timelines/list/" + listID,
NextMaxIDValue: nextMaxIDValue,
PrevMinIDValue: prevMinIDValue,
Limit: limit,
})
}