package server import ( "bytes" "encoding/json" "io" "net/http" "net/http/httptest" "github.com/tendermint/tendermint/libs/log" rs "github.com/tendermint/tendermint/rpc/jsonrpc/server" "github.com/tendermint/tendermint/rpc/jsonrpc/types" ) var rpcFuncMap = map[string]*rs.RPCFunc{ "c": rs.NewRPCFunc(func(s string, i int) (string, int) { return "foo", 200 }, "s,i", false), } var mux *http.ServeMux func init() { mux = http.NewServeMux() lgr := log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false) rs.RegisterRPCFuncs(mux, rpcFuncMap, lgr) } func Fuzz(data []byte) int { if len(data) == 0 { return -1 } req, _ := http.NewRequest("POST", "http://localhost/", bytes.NewReader(data)) rec := httptest.NewRecorder() mux.ServeHTTP(rec, req) res := rec.Result() blob, err := io.ReadAll(res.Body) if err != nil { panic(err) } if err := res.Body.Close(); err != nil { panic(err) } if len(blob) == 0 { return 1 } if outputJSONIsSlice(blob) { recv := []types.RPCResponse{} if err := json.Unmarshal(blob, &recv); err != nil { panic(err) } return 1 } recv := &types.RPCResponse{} if err := json.Unmarshal(blob, recv); err != nil { panic(err) } return 1 } func outputJSONIsSlice(input []byte) bool { slice := []interface{}{} return json.Unmarshal(input, &slice) == nil }