diff options
Diffstat (limited to 'internal/processing/timeline/list.go')
-rw-r--r-- | internal/processing/timeline/list.go | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/internal/processing/timeline/list.go b/internal/processing/timeline/list.go new file mode 100644 index 000000000..adad35197 --- /dev/null +++ b/internal/processing/timeline/list.go @@ -0,0 +1,157 @@ +// 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" + "fmt" + + 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 { + if errors.Is(err, db.ErrNoEntries) { + return nil, true, nil // we just don't have enough statuses left in the db so return stop = true + } + return nil, false, fmt.Errorf("ListTimelineGrab: error getting statuses from db: %w", err) + } + + items := make([]timeline.Timelineable, len(statuses)) + for i, s := range statuses { + items[i] = s + } + + return items, false, nil + } +} + +// HomeTimelineFilter 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 { + return false, errors.New("ListTimelineFilter: could not convert item to *gtsmodel.Status") + } + + list, err := state.DB.GetListByID(ctx, listID) + if err != nil { + return false, fmt.Errorf("ListTimelineFilter: error getting list with id %s: %w", listID, err) + } + + requestingAccount, err := state.DB.GetAccountByID(ctx, list.AccountID) + if err != nil { + return false, fmt.Errorf("ListTimelineFilter: error getting account with id %s: %w", list.AccountID, err) + } + + timelineable, err := filter.StatusHomeTimelineable(ctx, requestingAccount, status) + if err != nil { + return false, fmt.Errorf("ListTimelineFilter: error checking hometimelineability of status %s for account %s: %w", status.ID, list.AccountID, 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 { + return nil, fmt.Errorf("ListTimelineStatusPrepare: error getting status with id %s: %w", itemID, err) + } + + list, err := state.DB.GetListByID(ctx, listID) + if err != nil { + return nil, fmt.Errorf("ListTimelineStatusPrepare: error getting list with id %s: %w", listID, err) + } + + requestingAccount, err := state.DB.GetAccountByID(ctx, list.AccountID) + if err != nil { + return nil, fmt.Errorf("ListTimelineStatusPrepare: error getting account with id %s: %w", list.AccountID, 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 = fmt.Errorf("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 { + err = fmt.Errorf("ListTimelineGet: 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 string + prevMinIDValue string + ) + + for i, item := range statuses { + if i == count-1 { + nextMaxIDValue = item.GetID() + } + + if i == 0 { + prevMinIDValue = item.GetID() + } + + items[i] = item + } + + return util.PackagePageableResponse(util.PageableResponseParams{ + Items: items, + Path: "api/v1/timelines/list/" + listID, + NextMaxIDValue: nextMaxIDValue, + PrevMinIDValue: prevMinIDValue, + Limit: limit, + }) +} |