package cli import ( "context" "fmt" "net/http" "os" "os/signal" "strings" "syscall" logging "github.com/ipfs/go-log/v2" "github.com/mitchellh/go-homedir" "github.com/multiformats/go-multiaddr" manet "github.com/multiformats/go-multiaddr-net" "golang.org/x/xerrors" "gopkg.in/urfave/cli.v2" "github.com/filecoin-project/lotus/api" "github.com/filecoin-project/lotus/api/client" "github.com/filecoin-project/lotus/lib/jsonrpc" "github.com/filecoin-project/lotus/node/repo" ) var log = logging.Logger("cli") const ( metadataTraceConetxt = "traceContext" ) // custom CLI error type ErrCmdFailed struct { msg string } func (e *ErrCmdFailed) Error() string { return e.msg } func NewCliError(s string) error { return &ErrCmdFailed{s} } // ApiConnector returns API instance type ApiConnector func() api.FullNode type APIInfo struct { Addr multiaddr.Multiaddr Token []byte } func (a APIInfo) DialArgs() (string, error) { _, addr, err := manet.DialArgs(a.Addr) return "ws://" + addr + "/rpc/v0", err } func (a APIInfo) AuthHeader() http.Header { if len(a.Token) != 0 { headers := http.Header{} headers.Add("Authorization", "Bearer "+string(a.Token)) return headers } log.Warn("API Token not set and requested, capabilities might be limited.") return nil } func flagForRepo(t repo.RepoType) string { switch t { case repo.FullNode: return "repo" case repo.StorageMiner: return "storagerepo" default: panic(fmt.Sprintf("Unknown repo type: %v", t)) } } func envForRepo(t repo.RepoType) string { switch t { case repo.FullNode: return "FULLNODE_API_INFO" case repo.StorageMiner: return "STORAGE_API_INFO" default: panic(fmt.Sprintf("Unknown repo type: %v", t)) } } func GetAPIInfo(ctx *cli.Context, t repo.RepoType) (APIInfo, error) { if env, ok := os.LookupEnv(envForRepo(t)); ok { sp := strings.SplitN(env, ":", 2) if len(sp) != 2 { log.Warnf("invalid env(%s) value, missing token or address", envForRepo(t)) } else { ma, err := multiaddr.NewMultiaddr(sp[1]) if err != nil { return APIInfo{}, xerrors.Errorf("could not parse multiaddr from env(%s): %w", envForRepo(t), err) } return APIInfo{ Addr: ma, Token: []byte(sp[0]), }, nil } } repoFlag := flagForRepo(t) p, err := homedir.Expand(ctx.String(repoFlag)) if err != nil { return APIInfo{}, xerrors.Errorf("cound not expand home dir (%s): %w", repoFlag, err) } r, err := repo.NewFS(p) if err != nil { return APIInfo{}, xerrors.Errorf("could not open repo at path: %s; %w", p, err) } ma, err := r.APIEndpoint() if err != nil { return APIInfo{}, xerrors.Errorf("could not get api endpoint: %w", err) } token, err := r.APIToken() if err != nil { log.Warnf("Couldn't load CLI token, capabilities may be limited: %v", err) } return APIInfo{ Addr: ma, Token: token, }, nil } func GetRawAPI(ctx *cli.Context, t repo.RepoType) (string, http.Header, error) { ainfo, err := GetAPIInfo(ctx, t) if err != nil { return "", nil, xerrors.Errorf("could not get API info: %w", err) } addr, err := ainfo.DialArgs() if err != nil { return "", nil, xerrors.Errorf("could not get DialArgs: %w", err) } return addr, ainfo.AuthHeader(), nil } func GetAPI(ctx *cli.Context) (api.Common, jsonrpc.ClientCloser, error) { ti, ok := ctx.App.Metadata["repoType"] if !ok { log.Errorf("unknown repo type, are you sure you want to use GetAPI?") ti = repo.FullNode } t, ok := ti.(repo.RepoType) if !ok { log.Errorf("repoType type does not match the type of repo.RepoType") } addr, headers, err := GetRawAPI(ctx, t) if err != nil { return nil, nil, err } return client.NewCommonRPC(addr, headers) } func GetFullNodeAPI(ctx *cli.Context) (api.FullNode, jsonrpc.ClientCloser, error) { addr, headers, err := GetRawAPI(ctx, repo.FullNode) if err != nil { return nil, nil, err } return client.NewFullNodeRPC(addr, headers) } func GetStorageMinerAPI(ctx *cli.Context) (api.StorageMiner, jsonrpc.ClientCloser, error) { addr, headers, err := GetRawAPI(ctx, repo.StorageMiner) if err != nil { return nil, nil, err } return client.NewStorageMinerRPC(addr, headers) } func DaemonContext(cctx *cli.Context) context.Context { if mtCtx, ok := cctx.App.Metadata[metadataTraceConetxt]; ok { return mtCtx.(context.Context) } return context.Background() } // ReqContext returns context for cli execution. Calling it for the first time // installs SIGTERM handler that will close returned context. // Not safe for concurrent execution. func ReqContext(cctx *cli.Context) context.Context { tCtx := DaemonContext(cctx) ctx, done := context.WithCancel(tCtx) sigChan := make(chan os.Signal, 2) go func() { <-sigChan done() }() signal.Notify(sigChan, syscall.SIGTERM, syscall.SIGINT) return ctx } var Commands = []*cli.Command{ authCmd, chainCmd, clientCmd, fetchParamCmd, mpoolCmd, multisigCmd, netCmd, paychCmd, sendCmd, stateCmd, syncCmd, versionCmd, walletCmd, logCmd, }