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gotosocial/internal/transport/finger.go

59 lines
1.7 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2022 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 transport
import (
"context"
"fmt"
"io/ioutil"
"net/http"
)
func (t *transport) Finger(ctx context.Context, targetUsername string, targetDomain string) ([]byte, error) {
// Prepare URL string
urlStr := "https://" +
targetDomain +
"/.well-known/webfinger?resource=acct:" +
targetUsername + "@" + targetDomain
// Generate new GET request from URL string
req, err := http.NewRequestWithContext(ctx, "GET", urlStr, nil)
if err != nil {
return nil, err
}
req.Header.Add("Accept", "application/json")
req.Header.Add("Accept", "application/jrd+json")
req.Header.Add("User-Agent", t.controller.userAgent)
req.Header.Set("Host", req.URL.Host)
// Perform the HTTP request
rsp, err := t.GET(req)
if err != nil {
return nil, err
}
defer rsp.Body.Close()
// Check for an expected status code
if rsp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("GET request to %s failed (%d): %s", urlStr, rsp.StatusCode, rsp.Status)
}
return ioutil.ReadAll(rsp.Body)
}