mirror of
https://github.com/superseriousbusiness/gotosocial.git
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8f67dd583d
* update typeconverter to use state structure * deinterface the typeutils.TypeConverter -> typeutils.Converter * finish copying over old type converter code comments * fix cherry-pick merge issues, fix tests pointing to old typeutils interface type still
141 lines
4.2 KiB
Go
141 lines
4.2 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 timeline
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import (
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"context"
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"errors"
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"fmt"
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apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
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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/log"
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"github.com/superseriousbusiness/gotosocial/internal/text"
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"github.com/superseriousbusiness/gotosocial/internal/util"
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)
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// TagTimelineGet gets a pageable timeline for the given
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// tagName and given paging parameters. It will ensure
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// that each status in the timeline is actually visible
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// to requestingAcct before returning it.
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func (p *Processor) TagTimelineGet(
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ctx context.Context,
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requestingAcct *gtsmodel.Account,
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tagName string,
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maxID string,
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sinceID string,
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minID string,
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limit int,
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) (*apimodel.PageableResponse, gtserror.WithCode) {
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tag, errWithCode := p.getTag(ctx, tagName)
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if errWithCode != nil {
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return nil, errWithCode
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}
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if tag == nil || !*tag.Useable || !*tag.Listable {
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// Obey mastodon API by returning 404 for this.
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err := fmt.Errorf("tag was not found, or not useable/listable on this instance")
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return nil, gtserror.NewErrorNotFound(err, err.Error())
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}
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statuses, err := p.state.DB.GetTagTimeline(ctx, tag.ID, maxID, sinceID, minID, limit)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err = gtserror.Newf("db error getting statuses: %w", err)
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return nil, gtserror.NewErrorInternalError(err)
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}
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return p.packageTagResponse(
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ctx,
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requestingAcct,
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statuses,
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limit,
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// Use API URL for tag.
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"/api/v1/timelines/tag/"+tagName,
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)
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}
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func (p *Processor) getTag(ctx context.Context, tagName string) (*gtsmodel.Tag, gtserror.WithCode) {
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// Normalize + validate tag name.
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tagNameNormal, ok := text.NormalizeHashtag(tagName)
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if !ok {
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err := gtserror.Newf("string '%s' could not be normalized to a valid hashtag", tagName)
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return nil, gtserror.NewErrorBadRequest(err, err.Error())
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}
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// Ensure we have tag with this name in the db.
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tag, err := p.state.DB.GetTagByName(ctx, tagNameNormal)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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// Real db error.
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err = gtserror.Newf("db error getting tag by name: %w", err)
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return nil, gtserror.NewErrorInternalError(err)
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}
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return tag, nil
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}
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func (p *Processor) packageTagResponse(
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ctx context.Context,
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requestingAcct *gtsmodel.Account,
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statuses []*gtsmodel.Status,
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limit int,
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requestPath string,
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) (*apimodel.PageableResponse, gtserror.WithCode) {
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count := len(statuses)
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if count == 0 {
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return util.EmptyPageableResponse(), nil
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}
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var (
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items = make([]interface{}, 0, count)
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// Set next + prev values before filtering and API
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// converting, so caller can still page properly.
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nextMaxIDValue = statuses[count-1].ID
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prevMinIDValue = statuses[0].ID
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)
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for _, s := range statuses {
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timelineable, err := p.filter.StatusTagTimelineable(ctx, requestingAcct, s)
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if err != nil {
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log.Errorf(ctx, "error checking status visibility: %v", err)
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continue
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}
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if !timelineable {
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continue
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}
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apiStatus, err := p.converter.StatusToAPIStatus(ctx, s, requestingAcct)
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if err != nil {
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log.Errorf(ctx, "error converting to api status: %v", err)
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continue
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}
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items = append(items, apiStatus)
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}
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return util.PackagePageableResponse(util.PageableResponseParams{
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Items: items,
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Path: requestPath,
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NextMaxIDValue: nextMaxIDValue,
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PrevMinIDValue: prevMinIDValue,
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Limit: limit,
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})
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}
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