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cmd.go
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cmd.go
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package relay
import (
"context"
"github.com/hyperledger-labs/yui-relayer/config"
"github.com/hyperledger-labs/yui-relayer/core"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
const (
flagSrc = "src"
flagHeight = "height"
)
func LCPCmd(ctx *config.Context) *cobra.Command {
cmd := &cobra.Command{
Use: "lcp",
Short: "LCP commands",
}
cmd.AddCommand(
updateEnclaveKeyCmd(ctx),
activateClientCmd(ctx),
restoreELCStateCmd(ctx),
removeEnclaveKeyInfoCmd(ctx),
)
return cmd
}
func updateEnclaveKeyCmd(ctx *config.Context) *cobra.Command {
cmd := &cobra.Command{
Use: "update-enclave-key [path]",
Short: "Register an enclave key into the LCP client",
Args: cobra.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
c, src, dst, err := ctx.Config.ChainsFromPath(args[0])
if err != nil {
return err
}
var (
target *core.ProvableChain
verifier *core.ProvableChain
)
if viper.GetBool(flagSrc) {
target = c[src]
verifier = c[dst]
} else {
target = c[dst]
verifier = c[src]
}
prover := target.Prover.(*Prover)
return prover.UpdateEKIfNeeded(context.TODO(), verifier)
},
}
return srcFlag(cmd)
}
func activateClientCmd(ctx *config.Context) *cobra.Command {
cmd := &cobra.Command{
Use: "activate-client [path]",
Short: "Activate the LCP client",
Args: cobra.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
c, src, dst, err := ctx.Config.ChainsFromPath(args[0])
if err != nil {
return err
}
path, err := ctx.Config.Paths.Get(args[0])
if err != nil {
return err
}
var (
pathEnd *core.PathEnd
target *core.ProvableChain
counterparty *core.ProvableChain
)
if viper.GetBool(flagSrc) {
pathEnd = path.Src
target, counterparty = c[src], c[dst]
} else {
pathEnd = path.Dst
target, counterparty = c[dst], c[src]
}
return activateClient(pathEnd, target, counterparty)
},
}
return srcFlag(cmd)
}
func restoreELCStateCmd(ctx *config.Context) *cobra.Command {
cmd := &cobra.Command{
Use: "restore-elc-state [path]",
Short: "Restore ELC state on LCP",
Args: cobra.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
c, src, dst, err := ctx.Config.ChainsFromPath(args[0])
if err != nil {
return err
}
var (
target *core.ProvableChain
verifier *core.ProvableChain
)
if viper.GetBool(flagSrc) {
target = c[src]
verifier = c[dst]
} else {
target = c[dst]
verifier = c[src]
}
prover := target.Prover.(*Prover)
if err := prover.restoreELCState(context.TODO(), verifier, viper.GetUint64(flagHeight)); err != nil {
return err
}
if err := prover.removeEnclaveKeyInfos(context.TODO()); err != nil {
return err
}
return nil
},
}
return heightFlag(srcFlag(cmd))
}
func removeEnclaveKeyInfoCmd(ctx *config.Context) *cobra.Command {
cmd := &cobra.Command{
Use: "remove-eki [path]",
Short: "Remove finalized and unfinalized EKIs in the relayer home directory",
Args: cobra.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
c, src, dst, err := ctx.Config.ChainsFromPath(args[0])
if err != nil {
return err
}
var target *core.ProvableChain
if viper.GetBool(flagSrc) {
target = c[src]
} else {
target = c[dst]
}
prover := target.Prover.(*Prover)
return prover.removeEnclaveKeyInfos(context.TODO())
},
}
return srcFlag(cmd)
}
func srcFlag(cmd *cobra.Command) *cobra.Command {
cmd.Flags().BoolP(flagSrc, "", true, "a boolean value whether src is the target chain")
if err := viper.BindPFlag(flagSrc, cmd.Flags().Lookup(flagSrc)); err != nil {
panic(err)
}
return cmd
}
func heightFlag(cmd *cobra.Command) *cobra.Command {
cmd.Flags().Uint64P(flagHeight, "", 0, "a height to restore")
if err := viper.BindPFlag(flagHeight, cmd.Flags().Lookup(flagHeight)); err != nil {
panic(err)
}
return cmd
}