70 lines
2.5 KiB
Go
70 lines
2.5 KiB
Go
/*
|
|
GoToSocial
|
|
Copyright (C) 2021 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 federation
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"net/url"
|
|
"strings"
|
|
|
|
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
|
|
)
|
|
|
|
func (f *federator) FingerRemoteAccount(requestingUsername string, targetUsername string, targetDomain string) (*url.URL, error) {
|
|
|
|
t, err := f.GetTransportForUser(requestingUsername)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("FingerRemoteAccount: error getting transport for username %s while dereferencing @%s@%s: %s", requestingUsername, targetUsername, targetDomain, err)
|
|
}
|
|
|
|
b, err := t.Finger(context.Background(), targetUsername, targetDomain)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("FingerRemoteAccount: error doing request on behalf of username %s while dereferencing @%s@%s: %s", requestingUsername, targetUsername, targetDomain, err)
|
|
}
|
|
|
|
resp := &apimodel.WebfingerAccountResponse{}
|
|
if err := json.Unmarshal(b, resp); err != nil {
|
|
return nil, fmt.Errorf("FingerRemoteAccount: could not unmarshal server response as WebfingerAccountResponse on behalf of username %s while dereferencing @%s@%s: %s", requestingUsername, targetUsername, targetDomain, err)
|
|
}
|
|
|
|
if len(resp.Links) == 0 {
|
|
return nil, fmt.Errorf("FingerRemoteAccount: no links found in webfinger response %s", string(b))
|
|
}
|
|
|
|
// look through the links for the first one that matches "application/activity+json", this is what we need
|
|
for _, l := range resp.Links {
|
|
if strings.EqualFold(l.Type, "application/activity+json") {
|
|
if l.Href == "" || l.Rel != "self" {
|
|
continue
|
|
}
|
|
accountURI, err := url.Parse(l.Href)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("FingerRemoteAccount: couldn't parse url %s: %s", l.Href, err)
|
|
}
|
|
// found it!
|
|
return accountURI, nil
|
|
}
|
|
}
|
|
|
|
return nil, errors.New("FingerRemoteAccount: no match found in webfinger response")
|
|
}
|