2 tofuproxy -- flexible HTTP/HTTPS proxy, TLS terminator, X.509 TOFU
3 manager, WARC/geminispace browser
4 Copyright (C) 2021-2022 Sergey Matveev <stargrave@stargrave.org>
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, version 3 of the License.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
30 "go.stargrave.org/tofuproxy/fifos"
33 func transcodeCmd2Png(
34 contentType, ext, cmdName string,
36 w http.ResponseWriter,
39 if resp.Header.Get("Content-Type") != contentType {
42 tmpFd, err := ioutil.TempFile("", "tofuproxy.*."+ext)
46 defer os.Remove(tmpFd.Name())
48 defer resp.Body.Close()
49 if _, err = io.Copy(tmpFd, resp.Body); err != nil {
50 log.Printf("Error during %s: %+v\n", req.URL, err)
54 dstFn := tmpFd.Name() + ".png"
55 cmd := exec.Command(cmdName, tmpFd.Name(), dstFn)
57 defer os.Remove(dstFn)
61 data, err := ioutil.ReadFile(dstFn)
65 w.Header().Add("Content-Type", "image/png")
66 w.WriteHeader(http.StatusOK)
68 fifos.LogVarious <- fmt.Sprintf(
69 "%s %s\t%s transcoded to PNG", req.Method, req.URL, contentType,
74 func RoundTranscodeJXL(
77 w http.ResponseWriter,
80 return transcodeCmd2Png("image/jxl", "jxl", "djxl", resp, w, req)