func convert(r *http.Request, format string) ([]byte, error) {
upload, _, err := r.FormFile("file")
if err != nil {
return nil, err
}
defer upload.Close()
in_file, err := ioutil.TempFile(os.TempDir(), "")
defer os.Remove(in_file.Name())
if _, err = io.Copy(in_file, upload); nil != err {
return nil, err
}
doc := C.documentLoad(lo, C.CString(in_file.Name()))
if doc == nil {
return nil, errors.New("documentLoad failed")
}
out_file, err := ioutil.TempFile(os.TempDir(), "")
defer os.Remove(out_file.Name())
C.saveAs(doc, C.CString(out_file.Name()), C.CString(format))
C.destroy(doc)
bytes, err := ioutil.ReadFile(out_file.Name())
if err != nil {
return nil, err
}
return bytes, nil
}
// Close destroys radix tree.
func (rtree *NetRadixTree) Close() {
C.destroy(rtree.tree)
}