package main import ( acm "github.com/tendermint/tendermint/account" . "github.com/tendermint/tendermint/cmd/barak/types" ) func validate(signBytes []byte, validators []Validator, signatures []acm.Signature) bool { var signedPower int64 var totalPower int64 for i, val := range validators { if val.PubKey.VerifyBytes(signBytes, signatures[i]) { signedPower += val.VotingPower totalPower += val.VotingPower } else { totalPower += val.VotingPower } } return signedPower > totalPower*2/3 } /* NOTE: Not used, just here in case we want it later. func ValidateHandler(handler http.Handler, validators []Validator) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { sigStrs := r.Header[http.CanonicalHeaderKey("signatures")] log.Info("Woot", "sigstrs", sigStrs, "len", len(sigStrs)) // from https://medium.com/@xoen/golang-read-from-an-io-readwriter-without-loosing-its-content-2c6911805361 // Read the content var bodyBytes []byte if r.Body != nil { bodyBytes, _ = ioutil.ReadAll(r.Body) } // Restore the io.ReadCloser to its original state r.Body = ioutil.NopCloser(bytes.NewBuffer(bodyBytes)) // Get body string bodyString := string(bodyBytes) // Also read the path+"?"+query pathQuery := fmt.Sprintf("%v?%v", r.URL.Path, r.URL.RawQuery) // Concatenate into tuple of two strings. tuple := struct { Body string Path string }{bodyString, pathQuery} // Get sign bytes signBytes := binary.BinaryBytes(tuple) // Validate the sign bytes. //if validate(signBytes, validators, log.Info("Should sign", "bytes", signBytes) // If validation fails // XXX // If validation passes handler.ServeHTTP(w, r) }) } */