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/*
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"
"net/url"
"github.com/sirupsen/logrus"
)
func (t *transport) DereferenceMedia(ctx context.Context, iri *url.URL, expectedContentType string) ([]byte, error) {
l := logrus.WithField("func", "DereferenceMedia")
l.Debugf("performing GET to %s", iri.String())
req, err := http.NewRequestWithContext(ctx, "GET", iri.String(), nil)
if err != nil {
return nil, err
}
if expectedContentType == "" {
req.Header.Add("Accept", "*/*")
} else {
req.Header.Add("Accept", expectedContentType)
}
req.Header.Add("Date", t.clock.Now().UTC().Format("Mon, 02 Jan 2006 15:04:05")+" GMT")
req.Header.Add("User-Agent", fmt.Sprintf("%s %s", t.appAgent, t.gofedAgent))
req.Header.Set("Host", iri.Host)
t.getSignerMu.Lock()
err = t.getSigner.SignRequest(t.privkey, t.pubKeyID, req, nil)
t.getSignerMu.Unlock()
if err != nil {
return nil, err
}
resp, err := t.client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("GET request to %s failed (%d): %s", iri.String(), resp.StatusCode, resp.Status)
}
return ioutil.ReadAll(resp.Body)
}
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