lotus/cmd/lotus/rpc.go

106 lines
2.6 KiB
Go

package main
import (
"context"
"encoding/json"
"net/http"
_ "net/http/pprof"
"os"
"os/signal"
"syscall"
"github.com/filecoin-project/lotus/api/apistruct"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/lib/auth"
"github.com/filecoin-project/lotus/lib/jsonrpc"
"github.com/filecoin-project/lotus/node"
"github.com/filecoin-project/lotus/node/impl"
"github.com/ipfs/go-cid"
logging "github.com/ipfs/go-log/v2"
"github.com/multiformats/go-multiaddr"
manet "github.com/multiformats/go-multiaddr-net"
"golang.org/x/xerrors"
"contrib.go.opencensus.io/exporter/prometheus"
)
var log = logging.Logger("main")
func serveRPC(a api.FullNode, stop node.StopFunc, addr multiaddr.Multiaddr) error {
rpcServer := jsonrpc.NewServer()
rpcServer.Register("Filecoin", apistruct.PermissionedFullAPI(a))
ah := &auth.Handler{
Verify: a.AuthVerify,
Next: rpcServer.ServeHTTP,
}
http.Handle("/rpc/v0", ah)
importAH := &auth.Handler{
Verify: a.AuthVerify,
Next: handleImport(a.(*impl.FullNodeAPI)),
}
http.Handle("/rest/v0/import", importAH)
exporter, err := prometheus.NewExporter(prometheus.Options{
Namespace: "lotus",
})
if err != nil {
log.Fatalf("could not create the prometheus stats exporter: %v", err)
}
http.Handle("/debug/metrics", exporter)
lst, err := manet.Listen(addr)
if err != nil {
return xerrors.Errorf("could not listen: %w", err)
}
srv := &http.Server{Handler: http.DefaultServeMux}
sigChan := make(chan os.Signal, 2)
go func() {
<-sigChan
if err := srv.Shutdown(context.TODO()); err != nil {
log.Errorf("shutting down RPC server failed: %s", err)
}
if err := stop(context.TODO()); err != nil {
log.Errorf("graceful shutting down failed: %s", err)
}
}()
signal.Notify(sigChan, syscall.SIGTERM, syscall.SIGINT)
return srv.Serve(manet.NetListener(lst))
}
func handleImport(a *impl.FullNodeAPI) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
if r.Method != "PUT" {
w.WriteHeader(404)
return
}
if !apistruct.HasPerm(r.Context(), apistruct.PermWrite) {
w.WriteHeader(401)
json.NewEncoder(w).Encode(struct{ Error string }{"unauthorized: missing write permission"})
return
}
c, err := a.ClientImportLocal(r.Context(), r.Body)
if err != nil {
w.WriteHeader(500)
json.NewEncoder(w).Encode(struct{ Error string }{err.Error()})
return
}
w.WriteHeader(200)
err = json.NewEncoder(w).Encode(struct{ Cid cid.Cid }{c})
if err != nil {
log.Errorf("/rest/v0/import: Writing response failed: %+v", err)
return
}
}
}