Files
tendermint/test/fuzz/rpc/jsonrpc/server/handler.go
M. J. Fromberger 8f06e0c9e7 cleanup: remove redundant error plumbing (#6778)
This is a mostly-automated fixup using Comby (https://comby.dev) to remove 
lexically-obvious redundant error checks. No functional changes are intended.

To reproduce the core change:

    # Collapse redundant error check conditionals
    % comby -in-place 'if err != nil {
       return err
    }
    return nil' 'return err' .go

    # Fold out unnecessary error temporaries
    % comby -in-place ':[spc~^\s*]err :[~:?]= :[any]
       return err' ':[spc]return :[any]' .go

Fixes #6479 and related cases.
2021-07-28 15:38:46 -04:00

64 lines
1.3 KiB
Go

package server
import (
"bytes"
"encoding/json"
"io/ioutil"
"net/http"
"net/http/httptest"
"github.com/tendermint/tendermint/libs/log"
rs "github.com/tendermint/tendermint/rpc/jsonrpc/server"
types "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 := ioutil.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
}