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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/messages"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
// FaveCreate processes the faving of a given status, returning the updated status if the fave goes through.
func (p *Processor) FaveCreate(ctx context.Context, requestingAccount *gtsmodel.Account, targetStatusID string) (*apimodel.Status, gtserror.WithCode) {
targetStatus, err := p.state.DB.GetStatusByID(ctx, targetStatusID)
if err != nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("error fetching status %s: %s", targetStatusID, err))
}
if targetStatus.Account == nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("no status owner for status %s", targetStatusID))
}
visible, err := p.filter.StatusVisible(ctx, targetStatus, requestingAccount)
if err != nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("error seeing if status %s is visible: %s", targetStatus.ID, err))
}
if !visible {
return nil, gtserror.NewErrorNotFound(errors.New("status is not visible"))
}
if !*targetStatus.Likeable {
return nil, gtserror.NewErrorForbidden(errors.New("status is not faveable"))
}
// first check if the status is already faved, if so we don't need to do anything
newFave := true
gtsFave := >smodel.StatusFave{}
if err := p.state.DB.GetWhere(ctx, []db.Where{{Key: "status_id", Value: targetStatus.ID}, {Key: "account_id", Value: requestingAccount.ID}}, gtsFave); err == nil {
// we already have a fave for this status
newFave = false
}
if newFave {
thisFaveID := id.NewULID()
// we need to create a new fave in the database
gtsFave := >smodel.StatusFave{
ID: thisFaveID,
AccountID: requestingAccount.ID,
Account: requestingAccount,
TargetAccountID: targetStatus.AccountID,
TargetAccount: targetStatus.Account,
StatusID: targetStatus.ID,
Status: targetStatus,
URI: uris.GenerateURIForLike(requestingAccount.Username, thisFaveID),
}
if err := p.state.DB.Put(ctx, gtsFave); err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("error putting fave in database: %s", err))
}
// send it back to the processor for async processing
p.state.Workers.EnqueueClientAPI(ctx, messages.FromClientAPI{
APObjectType: ap.ActivityLike,
APActivityType: ap.ActivityCreate,
GTSModel: gtsFave,
OriginAccount: requestingAccount,
TargetAccount: targetStatus.Account,
})
}
// return the apidon representation of the target status
apiStatus, err := p.tc.StatusToAPIStatus(ctx, targetStatus, requestingAccount)
if err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("error converting status %s to frontend representation: %s", targetStatus.ID, err))
}
return apiStatus, nil
}
// FaveRemove processes the unfaving of a given status, returning the updated status if the fave goes through.
func (p *Processor) FaveRemove(ctx context.Context, requestingAccount *gtsmodel.Account, targetStatusID string) (*apimodel.Status, gtserror.WithCode) {
targetStatus, err := p.state.DB.GetStatusByID(ctx, targetStatusID)
if err != nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("error fetching status %s: %s", targetStatusID, err))
}
if targetStatus.Account == nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("no status owner for status %s", targetStatusID))
}
visible, err := p.filter.StatusVisible(ctx, targetStatus, requestingAccount)
if err != nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("error seeing if status %s is visible: %s", targetStatus.ID, err))
}
if !visible {
return nil, gtserror.NewErrorNotFound(errors.New("status is not visible"))
}
// check if we actually have a fave for this status
var toUnfave bool
gtsFave := >smodel.StatusFave{}
err = p.state.DB.GetWhere(ctx, []db.Where{{Key: "status_id", Value: targetStatus.ID}, {Key: "account_id", Value: requestingAccount.ID}}, gtsFave)
if err == nil {
// we have a fave
toUnfave = true
}
if err != nil {
// something went wrong in the db finding the fave
if err != db.ErrNoEntries {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("error fetching existing fave from database: %s", err))
}
// we just don't have a fave
toUnfave = false
}
if toUnfave {
// we had a fave, so take some action to get rid of it
if err := p.state.DB.DeleteWhere(ctx, []db.Where{{Key: "status_id", Value: targetStatus.ID}, {Key: "account_id", Value: requestingAccount.ID}}, gtsFave); err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("error unfaveing status: %s", err))
}
// send it back to the processor for async processing
p.state.Workers.EnqueueClientAPI(ctx, messages.FromClientAPI{
APObjectType: ap.ActivityLike,
APActivityType: ap.ActivityUndo,
GTSModel: gtsFave,
OriginAccount: requestingAccount,
TargetAccount: targetStatus.Account,
})
}
apiStatus, err := p.tc.StatusToAPIStatus(ctx, targetStatus, requestingAccount)
if err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("error converting status %s to frontend representation: %s", targetStatus.ID, err))
}
return apiStatus, nil
}
// 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, err := p.state.DB.GetStatusByID(ctx, targetStatusID)
if err != nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("error fetching status %s: %s", targetStatusID, err))
}
if targetStatus.Account == nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("no status owner for status %s", targetStatusID))
}
visible, err := p.filter.StatusVisible(ctx, targetStatus, requestingAccount)
if err != nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("error seeing if status %s is visible: %s", targetStatus.ID, err))
}
if !visible {
return nil, gtserror.NewErrorNotFound(errors.New("status is not visible"))
}
statusFaves, err := p.state.DB.GetStatusFaves(ctx, targetStatus)
if err != nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("error seeing who faved status: %s", err))
}
// filter the list so the user doesn't see accounts they blocked or which blocked them
filteredAccounts := []*gtsmodel.Account{}
for _, fave := range statusFaves {
blocked, err := p.state.DB.IsBlocked(ctx, requestingAccount.ID, fave.AccountID, true)
if err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("error checking blocks: %s", err))
}
if !blocked {
filteredAccounts = append(filteredAccounts, fave.Account)
}
}
// now we can return the api representation of those accounts
apiAccounts := []*apimodel.Account{}
for _, acc := range filteredAccounts {
apiAccount, err := p.tc.AccountToAPIAccountPublic(ctx, acc)
if err != nil {
return nil, gtserror.NewErrorInternalError(fmt.Errorf("error converting status %s to frontend representation: %s", targetStatus.ID, err))
}
apiAccounts = append(apiAccounts, apiAccount)
}
return apiAccounts, nil
}
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