57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package transport
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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)
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func (t *transport) DereferenceMedia(ctx context.Context, iri *url.URL) (io.ReadCloser, int64, error) {
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// Build IRI just once
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iriStr := iri.String()
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// Prepare HTTP request to this media's IRI
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req, err := http.NewRequestWithContext(ctx, "GET", iriStr, nil)
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if err != nil {
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return nil, 0, err
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}
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req.Header.Add("Accept", "*/*") // we don't know what kind of media we're going to get here
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req.Header.Set("Host", iri.Host)
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// Perform the HTTP request
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rsp, err := t.GET(req)
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if err != nil {
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return nil, 0, err
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}
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// Check for an expected status code
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if rsp.StatusCode != http.StatusOK {
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err := fmt.Errorf("GET request to %s failed: %s", iriStr, rsp.Status)
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return nil, 0, gtserror.WithStatusCode(err, rsp.StatusCode)
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}
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return rsp.Body, rsp.ContentLength, nil
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}
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