GoToSocial/internal/processing/search/accounts.go

128 lines
3.8 KiB
Go

// 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 search
import (
"context"
"errors"
"strings"
"codeberg.org/gruf/go-kv"
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"
)
// Accounts does a partial search for accounts that
// match the given query. It expects input that looks
// like a namestring, and will normalize plaintext to look
// more like a namestring. For queries that include domain,
// it will only return one match at most. For namestrings
// that exclude domain, multiple matches may be returned.
//
// This behavior aligns more or less with Mastodon's API.
// See https://docs.joinmastodon.org/methods/accounts/#search.
func (p *Processor) Accounts(
ctx context.Context,
requestingAccount *gtsmodel.Account,
query string,
limit int,
offset int,
resolve bool,
following bool,
) ([]*apimodel.Account, gtserror.WithCode) {
// Don't include instance accounts in this search.
//
// We don't want someone to start typing '@mastodon'
// and then get a million instance service accounts
// in their search results.
const includeInstanceAccounts = false
var (
foundAccounts = make([]*gtsmodel.Account, 0, limit)
appendAccount = func(foundAccount *gtsmodel.Account) { foundAccounts = append(foundAccounts, foundAccount) }
)
// Validate query.
query = strings.TrimSpace(query)
if query == "" {
err := gtserror.New("search query was empty string after trimming space")
return nil, gtserror.NewErrorBadRequest(err, err.Error())
}
// Be nice and normalize query by prepending '@'.
// This will make it easier for accountsByNamestring
// to pick this up as a valid namestring.
if query[0] != '@' {
query = "@" + query
}
log.
WithContext(ctx).
WithFields(kv.Fields{
{"limit", limit},
{"offset", offset},
{"query", query},
{"resolve", resolve},
{"following", following},
}...).
Debugf("beginning search")
// todo: Currently we don't support offset for paging;
// if caller supplied an offset greater than 0, return
// nothing as though there were no additional results.
if offset > 0 {
return p.packageAccounts(
ctx,
requestingAccount,
foundAccounts,
includeInstanceAccounts,
)
}
// Return all accounts we can find that match the
// provided query. If it's not a namestring, this
// won't return an error, it'll just return 0 results.
if _, err := p.accountsByNamestring(
ctx,
requestingAccount,
id.Highest,
id.Lowest,
limit,
offset,
query,
resolve,
following,
appendAccount,
); err != nil && !errors.Is(err, db.ErrNoEntries) {
err = gtserror.Newf("error searching by namestring: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
// Return whatever we got (if anything).
return p.packageAccounts(
ctx,
requestingAccount,
foundAccounts,
includeInstanceAccounts,
)
}