GoToSocial/internal/processing/search/accounts.go

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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 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"
"github.com/superseriousbusiness/gotosocial/internal/util"
)
// 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
// We *might* want to include blocked accounts
// in this search, but only if it's a search
// for a specific account.
includeBlockedAccounts := 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())
}
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,
includeBlockedAccounts,
)
}
// See if we have something that looks like a namestring.
username, domain, err := util.ExtractNamestringParts(query)
if err == nil {
if domain != "" {
// Search was an exact namestring;
// we can safely assume caller is
// searching for a specific account,
// and show it to them even if they
// have it blocked.
includeBlockedAccounts = true
}
// Get all accounts we can find
// that match the provided query.
if err := p.accountsByUsernameDomain(
ctx,
requestingAccount,
id.Highest,
id.Lowest,
limit,
offset,
username,
domain,
resolve,
following,
appendAccount,
); err != nil && !errors.Is(err, db.ErrNoEntries) {
err = gtserror.Newf("error searching by namestring: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
} else {
// Query Doesn't look like a
// namestring, use text search.
if err := p.accountsByText(
ctx,
requestingAccount.ID,
id.Highest,
id.Lowest,
limit,
offset,
query,
following,
appendAccount,
); err != nil && !errors.Is(err, db.ErrNoEntries) {
err = gtserror.Newf("error searching by text: %w", err)
return nil, gtserror.NewErrorInternalError(err)
}
}
// Return whatever we got (if anything).
return p.packageAccounts(
ctx,
requestingAccount,
foundAccounts,
includeInstanceAccounts,
includeBlockedAccounts,
)
}