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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"
"net/http"
"net/url"
)
func (t *transport) DereferenceMedia(ctx context.Context, iri *url.URL) (io.ReadCloser, int64, error) {
// Build IRI just once
iriStr := iri.String()
// Prepare HTTP request to this media's IRI
req, err := http.NewRequestWithContext(ctx, "GET", iriStr, nil)
if err != nil {
return nil, 0, err
}
req.Header.Add("Accept", "*/*") // we don't know what kind of media we're going to get here
req.Header.Set("Host", iri.Host)
// Perform the HTTP request
rsp, err := t.GET(req)
if err != nil {
return nil, 0, err
}
// Check for an expected status code
if rsp.StatusCode != http.StatusOK {
return nil, 0, fmt.Errorf("GET request to %s failed (%d): %s", iriStr, rsp.StatusCode, rsp.Status)
}
return rsp.Body, rsp.ContentLength, nil
}
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