lotus/lib/rpcenc/reader_test.go
Geoff Stuart ebf5eb6e28 Update lib/rpcenc/reader.go
Co-authored-by: Łukasz Magiera <magik6k@users.noreply.github.com>
2022-05-02 09:59:41 -04:00

197 lines
6.1 KiB
Go

//stm: #unit
package rpcenc
import (
"context"
"io"
"io/ioutil"
"net/http/httptest"
"strings"
"testing"
"github.com/gorilla/mux"
"github.com/stretchr/testify/require"
"golang.org/x/xerrors"
"github.com/filecoin-project/go-jsonrpc"
"github.com/filecoin-project/lotus/extern/storage-sealing/lib/nullreader"
)
type ReaderHandler struct {
readApi func(ctx context.Context, r io.Reader) ([]byte, error)
}
func (h *ReaderHandler) ReadAllApi(ctx context.Context, r io.Reader, mustRedir bool) ([]byte, error) {
if mustRedir {
if err := r.(*RpcReader).MustRedirect(); err != nil {
return nil, err
}
}
return h.readApi(ctx, r)
}
func (h *ReaderHandler) ReadStartAndApi(ctx context.Context, r io.Reader, mustRedir bool) ([]byte, error) {
if mustRedir {
if err := r.(*RpcReader).MustRedirect(); err != nil {
return nil, err
}
}
n, err := r.Read([]byte{0})
if err != nil {
return nil, err
}
if n != 1 {
return nil, xerrors.Errorf("not one")
}
return h.readApi(ctx, r)
}
func (h *ReaderHandler) CloseReader(ctx context.Context, r io.Reader) error {
return r.(io.Closer).Close()
}
func (h *ReaderHandler) ReadAll(ctx context.Context, r io.Reader) ([]byte, error) {
return ioutil.ReadAll(r)
}
func (h *ReaderHandler) ReadNullLen(ctx context.Context, r io.Reader) (int64, error) {
return r.(*nullreader.NullReader).N, nil
}
func (h *ReaderHandler) ReadUrl(ctx context.Context, u string) (string, error) {
return u, nil
}
func TestReaderProxy(t *testing.T) {
var client struct {
ReadAll func(ctx context.Context, r io.Reader) ([]byte, error)
}
serverHandler := &ReaderHandler{}
readerHandler, readerServerOpt := ReaderParamDecoder()
rpcServer := jsonrpc.NewServer(readerServerOpt)
rpcServer.Register("ReaderHandler", serverHandler)
mux := mux.NewRouter()
mux.Handle("/rpc/v0", rpcServer)
mux.Handle("/rpc/streams/v0/push/{uuid}", readerHandler)
testServ := httptest.NewServer(mux)
defer testServ.Close()
re := ReaderParamEncoder("http://" + testServ.Listener.Addr().String() + "/rpc/streams/v0/push")
closer, err := jsonrpc.NewMergeClient(context.Background(), "ws://"+testServ.Listener.Addr().String()+"/rpc/v0", "ReaderHandler", []interface{}{&client}, nil, re)
require.NoError(t, err)
defer closer()
read, err := client.ReadAll(context.TODO(), strings.NewReader("pooooootato"))
require.NoError(t, err)
require.Equal(t, "pooooootato", string(read), "potatoes weren't equal")
}
func TestNullReaderProxy(t *testing.T) {
var client struct {
ReadAll func(ctx context.Context, r io.Reader) ([]byte, error)
ReadNullLen func(ctx context.Context, r io.Reader) (int64, error)
}
serverHandler := &ReaderHandler{}
readerHandler, readerServerOpt := ReaderParamDecoder()
rpcServer := jsonrpc.NewServer(readerServerOpt)
rpcServer.Register("ReaderHandler", serverHandler)
mux := mux.NewRouter()
mux.Handle("/rpc/v0", rpcServer)
mux.Handle("/rpc/streams/v0/push/{uuid}", readerHandler)
testServ := httptest.NewServer(mux)
defer testServ.Close()
re := ReaderParamEncoder("http://" + testServ.Listener.Addr().String() + "/rpc/streams/v0/push")
closer, err := jsonrpc.NewMergeClient(context.Background(), "ws://"+testServ.Listener.Addr().String()+"/rpc/v0", "ReaderHandler", []interface{}{&client}, nil, re)
require.NoError(t, err)
defer closer()
n, err := client.ReadNullLen(context.TODO(), nullreader.NewNullReader(1016))
require.NoError(t, err)
require.Equal(t, int64(1016), n)
}
func TestReaderRedirect(t *testing.T) {
var allClient struct {
ReadAll func(ctx context.Context, r io.Reader) ([]byte, error)
}
{
allServerHandler := &ReaderHandler{}
readerHandler, readerServerOpt := ReaderParamDecoder()
rpcServer := jsonrpc.NewServer(readerServerOpt)
rpcServer.Register("ReaderHandler", allServerHandler)
mux := mux.NewRouter()
mux.Handle("/rpc/v0", rpcServer)
mux.Handle("/rpc/streams/v0/push/{uuid}", readerHandler)
testServ := httptest.NewServer(mux)
defer testServ.Close()
re := ReaderParamEncoder("http://" + testServ.Listener.Addr().String() + "/rpc/streams/v0/push")
closer, err := jsonrpc.NewMergeClient(context.Background(), "ws://"+testServ.Listener.Addr().String()+"/rpc/v0", "ReaderHandler", []interface{}{&allClient}, nil, re)
require.NoError(t, err)
defer closer()
}
var redirClient struct {
ReadAllApi func(ctx context.Context, r io.Reader, mustRedir bool) ([]byte, error)
ReadStartAndApi func(ctx context.Context, r io.Reader, mustRedir bool) ([]byte, error)
CloseReader func(ctx context.Context, r io.Reader) error
}
{
allServerHandler := &ReaderHandler{readApi: allClient.ReadAll}
readerHandler, readerServerOpt := ReaderParamDecoder()
rpcServer := jsonrpc.NewServer(readerServerOpt)
rpcServer.Register("ReaderHandler", allServerHandler)
mux := mux.NewRouter()
mux.Handle("/rpc/v0", rpcServer)
mux.Handle("/rpc/streams/v0/push/{uuid}", readerHandler)
testServ := httptest.NewServer(mux)
defer testServ.Close()
re := ReaderParamEncoder("http://" + testServ.Listener.Addr().String() + "/rpc/streams/v0/push")
closer, err := jsonrpc.NewMergeClient(context.Background(), "ws://"+testServ.Listener.Addr().String()+"/rpc/v0", "ReaderHandler", []interface{}{&redirClient}, nil, re)
require.NoError(t, err)
defer closer()
}
// redirect
read, err := redirClient.ReadAllApi(context.TODO(), strings.NewReader("rediracted pooooootato"), true)
require.NoError(t, err)
require.Equal(t, "rediracted pooooootato", string(read), "potatoes weren't equal")
// proxy (because we started reading locally)
read, err = redirClient.ReadStartAndApi(context.TODO(), strings.NewReader("rediracted pooooootato"), false)
require.NoError(t, err)
require.Equal(t, "ediracted pooooootato", string(read), "otatoes weren't equal")
// check mustredir check; proxy (because we started reading locally)
read, err = redirClient.ReadStartAndApi(context.TODO(), strings.NewReader("rediracted pooooootato"), true)
require.Error(t, err)
require.Contains(t, err.Error(), ErrMustRedirect.Error())
require.Empty(t, read)
err = redirClient.CloseReader(context.TODO(), strings.NewReader("rediracted pooooootato"))
require.NoError(t, err)
}