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