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// 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 status
import (
"context"
"errors"
"fmt"
"github.com/superseriousbusiness/gotosocial/internal/ap"
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/id"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
func (p *Processor) getFaveableStatus(
ctx context.Context,
requester *gtsmodel.Account,
targetID string,
) (
*gtsmodel.Status,
*gtsmodel.StatusFave,
gtserror.WithCode,
) {
// Get target status and ensure it's not a boost.
target, errWithCode := p.c.GetVisibleTargetStatus(
ctx,
requester,
targetID,
)
if errWithCode != nil {
return nil, nil, errWithCode
}
target, errWithCode = p.c.UnwrapIfBoost(
ctx,
requester,
target,
)
if errWithCode != nil {
return nil, nil, errWithCode
}
if !*target.Likeable {
err := errors.New("status is not faveable")
return nil, nil, gtserror.NewErrorForbidden(err, err.Error())
}
fave, err := p.state.DB.GetStatusFave(ctx, requester.ID, target.ID)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
err = fmt.Errorf("getFaveTarget: error checking existing fave: %w", err)
return nil, nil, gtserror.NewErrorInternalError(err)
}
return target, fave, nil
}
// FaveCreate adds a fave for the requestingAccount, targeting the given status (no-op if fave already exists).
func (p *Processor) FaveCreate(ctx context.Context, requestingAccount *gtsmodel.Account, targetStatusID string) (*apimodel.Status, gtserror.WithCode) {
targetStatus, existingFave, errWithCode := p.getFaveableStatus(ctx, requestingAccount, targetStatusID)
if errWithCode != nil {
return nil, errWithCode
}
if existingFave != nil {
// Status is already faveed.
return p.c.GetAPIStatus(ctx, requestingAccount, targetStatus)
}
// Create and store a new fave
faveID := id.NewULID()
gtsFave := >smodel.StatusFave{
ID: faveID,
AccountID: requestingAccount.ID,
Account: requestingAccount,
TargetAccountID: targetStatus.AccountID,
TargetAccount: targetStatus.Account,
StatusID: targetStatus.ID,
Status: targetStatus,
URI: uris.GenerateURIForLike(requestingAccount.Username, faveID),
}
if err := p.state.DB.PutStatusFave(ctx, gtsFave); err != nil {
err = fmt.Errorf("FaveCreate: error putting fave in database: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
// Process new status fave side effects.
p.state.Workers.EnqueueClientAPI(ctx, messages.FromClientAPI{
APObjectType: ap.ActivityLike,
APActivityType: ap.ActivityCreate,
GTSModel: gtsFave,
OriginAccount: requestingAccount,
TargetAccount: targetStatus.Account,
})
return p.c.GetAPIStatus(ctx, requestingAccount, targetStatus)
}
// FaveRemove removes a fave for the requesting account, targeting the given status (no-op if fave doesn't exist).
func (p *Processor) FaveRemove(ctx context.Context, requestingAccount *gtsmodel.Account, targetStatusID string) (*apimodel.Status, gtserror.WithCode) {
targetStatus, existingFave, errWithCode := p.getFaveableStatus(ctx, requestingAccount, targetStatusID)
if errWithCode != nil {
return nil, errWithCode
}
if existingFave == nil {
// Status isn't faveed.
return p.c.GetAPIStatus(ctx, requestingAccount, targetStatus)
}
// We have a fave to remove.
if err := p.state.DB.DeleteStatusFaveByID(ctx, existingFave.ID); err != nil {
err = fmt.Errorf("FaveRemove: error removing status fave: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
// Process remove status fave side effects.
p.state.Workers.EnqueueClientAPI(ctx, messages.FromClientAPI{
APObjectType: ap.ActivityLike,
APActivityType: ap.ActivityUndo,
GTSModel: existingFave,
OriginAccount: requestingAccount,
TargetAccount: targetStatus.Account,
})
return p.c.GetAPIStatus(ctx, requestingAccount, targetStatus)
}
// FavedBy returns a slice of accounts that have liked the given status, filtered according to privacy settings.
func (p *Processor) FavedBy(ctx context.Context, requestingAccount *gtsmodel.Account, targetStatusID string) ([]*apimodel.Account, gtserror.WithCode) {
targetStatus, errWithCode := p.c.GetVisibleTargetStatus(ctx, requestingAccount, targetStatusID)
if errWithCode != nil {
return nil, errWithCode
}
statusFaves, err := p.state.DB.GetStatusFaves(ctx, targetStatus.ID)
if err != nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("FavedBy: error seeing who faved status: %s", err))
}
// For each fave, ensure that we're only showing
// the requester accounts that they don't block,
// and which don't block them.
apiAccounts := make([]*apimodel.Account, 0, len(statusFaves))
for _, fave := range statusFaves {
if blocked, err := p.state.DB.IsEitherBlocked(ctx, requestingAccount.ID, fave.AccountID); err != nil {
err = fmt.Errorf("FavedBy: error checking blocks: %w", err)
return nil, gtserror.NewErrorInternalError(err)
} else if blocked {
continue
}
if fave.Account == nil {
// Account isn't set for some reason, just skip.
log.WithContext(ctx).WithField("fave", fave).Warn("fave had no associated account")
continue
}
apiAccount, err := p.converter.AccountToAPIAccountPublic(ctx, fave.Account)
if err != nil {
err = fmt.Errorf("FavedBy: error converting account %s to frontend representation: %w", fave.AccountID, err)
return nil, gtserror.NewErrorInternalError(err)
}
apiAccounts = append(apiAccounts, apiAccount)
}
return apiAccounts, nil
}
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