2 tofuproxy -- HTTP proxy with TLS certificates management
3 Copyright (C) 2021 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, version 3 of the License.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
29 "go.stargrave.org/tofuproxy/fifos"
32 const CmdDJXL = "djxl"
34 func RoundTranscodeJXL(
37 w http.ResponseWriter,
40 if resp.Header.Get("Content-Type") != "image/jxl" {
43 tmpFd, err := ioutil.TempFile("", "tofuproxy.*.jxl")
47 defer os.Remove(tmpFd.Name())
49 defer resp.Body.Close()
50 if _, err = io.Copy(tmpFd, resp.Body); err != nil {
51 log.Printf("Error during %s: %+v\n", req.URL, err)
55 dstFn := tmpFd.Name() + ".png"
56 cmd := exec.Command(CmdDJXL, tmpFd.Name(), dstFn)
58 defer os.Remove(dstFn)
62 data, err := ioutil.ReadFile(dstFn)
66 w.Header().Add("Content-Type", "image/png")
67 w.WriteHeader(http.StatusOK)
69 fifos.SinkOther <- fmt.Sprintf(
70 "%s %s\t%d\tJPEG XL transcoded to PNG",