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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 v1
import (
"context"
"errors"
"fmt"
"strings"
"time"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/util"
)
// Update an existing filter and filter keyword for the given account, using the provided parameters.
// These params should have already been validated by the time they reach this function.
func (p *Processor) Update(
ctx context.Context,
account *gtsmodel.Account,
filterKeywordID string,
form *apimodel.FilterCreateUpdateRequestV1,
) (*apimodel.FilterV1, gtserror.WithCode) {
// Get enough of the filter keyword that we can look up its filter ID.
filterKeyword, err := p.state.DB.GetFilterKeywordByID(gtscontext.SetBarebones(ctx), filterKeywordID)
if err != nil {
if errors.Is(err, db.ErrNoEntries) {
return nil, gtserror.NewErrorNotFound(err)
}
return nil, gtserror.NewErrorInternalError(err)
}
if filterKeyword.AccountID != account.ID {
return nil, gtserror.NewErrorNotFound(nil)
}
// Get the filter for this keyword.
filter, err := p.state.DB.GetFilterByID(ctx, filterKeyword.FilterID)
if err != nil {
if errors.Is(err, db.ErrNoEntries) {
return nil, gtserror.NewErrorNotFound(err)
}
return nil, gtserror.NewErrorInternalError(err)
}
title := form.Phrase
action := gtsmodel.FilterActionWarn
if *form.Irreversible {
action = gtsmodel.FilterActionHide
}
expiresAt := time.Time{}
if form.ExpiresIn != nil && *form.ExpiresIn != 0 {
expiresAt = time.Now().Add(time.Second * time.Duration(*form.ExpiresIn))
}
contextHome := false
contextNotifications := false
contextPublic := false
contextThread := false
contextAccount := false
for _, context := range form.Context {
switch context {
case apimodel.FilterContextHome:
contextHome = true
case apimodel.FilterContextNotifications:
contextNotifications = true
case apimodel.FilterContextPublic:
contextPublic = true
case apimodel.FilterContextThread:
contextThread = true
case apimodel.FilterContextAccount:
contextAccount = true
default:
return nil, gtserror.NewErrorUnprocessableEntity(
fmt.Errorf("unsupported filter context '%s'", context),
)
}
}
// v1 filter APIs can't change certain fields for a filter with multiple keywords or any statuses,
// since it would be an unexpected side effect on filters that, to the v1 API, appear separate.
// See https://docs.joinmastodon.org/methods/filters/#update-v1
if len(filter.Keywords) > 1 || len(filter.Statuses) > 0 {
forbiddenFields := make([]string, 0, 4)
if title != filter.Title {
forbiddenFields = append(forbiddenFields, "phrase")
}
if action != filter.Action {
forbiddenFields = append(forbiddenFields, "irreversible")
}
if expiresAt != filter.ExpiresAt {
forbiddenFields = append(forbiddenFields, "expires_in")
}
if contextHome != util.PtrOrValue(filter.ContextHome, false) ||
contextNotifications != util.PtrOrValue(filter.ContextNotifications, false) ||
contextPublic != util.PtrOrValue(filter.ContextPublic, false) ||
contextThread != util.PtrOrValue(filter.ContextThread, false) ||
contextAccount != util.PtrOrValue(filter.ContextAccount, false) {
forbiddenFields = append(forbiddenFields, "context")
}
if len(forbiddenFields) > 0 {
return nil, gtserror.NewErrorUnprocessableEntity(
fmt.Errorf("v1 filter backwards compatibility: can't change these fields for a filter with multiple keywords or any statuses: %s", strings.Join(forbiddenFields, ", ")),
)
}
}
// Now that we've checked that the changes are legal, apply them to the filter and keyword.
filter.Title = title
filter.Action = action
filter.ExpiresAt = expiresAt
filter.ContextHome = &contextHome
filter.ContextNotifications = &contextNotifications
filter.ContextPublic = &contextPublic
filter.ContextThread = &contextThread
filter.ContextAccount = &contextAccount
filterKeyword.Keyword = form.Phrase
filterKeyword.WholeWord = util.Ptr(util.PtrOrValue(form.WholeWord, false))
// We only want to update the relevant filter keyword.
filter.Keywords = []*gtsmodel.FilterKeyword{filterKeyword}
filter.Statuses = nil
filterKeyword.Filter = filter
filterColumns := []string{
"title",
"action",
"expires_at",
"context_home",
"context_notifications",
"context_public",
"context_thread",
"context_account",
}
filterKeywordColumns := [][]string{
{
"keyword",
"whole_word",
},
}
if err := p.state.DB.UpdateFilter(ctx, filter, filterColumns, filterKeywordColumns, nil, nil); err != nil {
if errors.Is(err, db.ErrAlreadyExists) {
err = errors.New("you already have a filter with this title")
return nil, gtserror.NewErrorConflict(err, err.Error())
}
return nil, gtserror.NewErrorInternalError(err)
}
apiFilter, errWithCode := p.apiFilter(ctx, filterKeyword)
if errWithCode != nil {
return nil, errWithCode
}
// Send a filters changed event.
p.stream.FiltersChanged(ctx, account)
return apiFilter, nil
}
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