81 lines
2.7 KiB
Go
81 lines
2.7 KiB
Go
/*
|
|
GoToSocial
|
|
Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
|
|
|
|
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 dereferencing
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"net/url"
|
|
"strings"
|
|
|
|
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
|
|
"github.com/superseriousbusiness/gotosocial/internal/util"
|
|
)
|
|
|
|
func (d *deref) fingerRemoteAccount(ctx context.Context, username string, targetUsername string, targetHost string) (accountDomain string, accountURI *url.URL, err error) {
|
|
t, err := d.transportController.NewTransportForUsername(ctx, username)
|
|
if err != nil {
|
|
err = fmt.Errorf("fingerRemoteAccount: error getting transport for %s: %s", username, err)
|
|
return
|
|
}
|
|
|
|
b, err := t.Finger(ctx, targetUsername, targetHost)
|
|
if err != nil {
|
|
err = fmt.Errorf("fingerRemoteAccount: error fingering @%s@%s: %s", targetUsername, targetHost, err)
|
|
return
|
|
}
|
|
|
|
resp := &apimodel.WellKnownResponse{}
|
|
if err = json.Unmarshal(b, resp); err != nil {
|
|
err = fmt.Errorf("fingerRemoteAccount: could not unmarshal server response as WebfingerAccountResponse while dereferencing @%s@%s: %s", targetUsername, targetHost, err)
|
|
return
|
|
}
|
|
|
|
if len(resp.Links) == 0 {
|
|
err = fmt.Errorf("fingerRemoteAccount: no links found in webfinger response %s", string(b))
|
|
return
|
|
}
|
|
|
|
if resp.Subject == "" {
|
|
err = fmt.Errorf("fingerRemoteAccount: no subject found in webfinger response %s", string(b))
|
|
return
|
|
}
|
|
|
|
_, accountDomain, err = util.ExtractWebfingerParts(resp.Subject)
|
|
if err != nil {
|
|
err = fmt.Errorf("fingerRemoteAccount: error extracting webfinger subject parts: %s", err)
|
|
}
|
|
|
|
// look through the links for the first one that matches what we need
|
|
for _, l := range resp.Links {
|
|
if l.Rel == "self" && (strings.EqualFold(l.Type, "application/activity+json") || strings.EqualFold(l.Type, "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"")) {
|
|
if uri, thiserr := url.Parse(l.Href); thiserr == nil && (uri.Scheme == "http" || uri.Scheme == "https") {
|
|
// found it!
|
|
accountURI = uri
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
err = errors.New("fingerRemoteAccount: no match found in webfinger response")
|
|
return
|
|
}
|