package acme import ( "io" "log" "os" "path" ) type webrootSolver struct { webroot string file string } func NewWebrootSolver(webroot string) Solver { return &webrootSolver{webroot: webroot} } func (s *webrootSolver) Solve(ch Challenge) error { s.file = path.Join(s.webroot, WellKnown, ch.Token) log.Println("solve webroot", s.file) fd, err := CreatePubFile(s.file) if err != nil { return err } defer fd.Close() _, err = io.WriteString(fd, ch.KeyAuthorization) return err } func (s *webrootSolver) Solved() error { return os.Remove(s.file) } func (webrootSolver) Type() ChalType { return ChallengeHTTP }