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// Copyright 2022 Google LLC. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"context"
"fmt"
ct "github.com/google/certificate-transparency-go"
"github.com/spf13/cobra"
)
func init() {
rootCmd.AddCommand(&cobra.Command{
Use: fmt.Sprintf("get-sth %s", connectionFlags),
Aliases: []string{"sth"},
Short: "Fetch the latest STH of the log",
Args: cobra.MaximumNArgs(0),
Run: func(cmd *cobra.Command, _ []string) {
runGetSTH(cmd.Context())
},
})
}
// runGetSTH runs the get-sth command.
func runGetSTH(ctx context.Context) {
logClient := connect(ctx)
sth, err := logClient.GetSTH(ctx)
if err != nil {
exitWithDetails(err)
}
// Display the STH.
when := ct.TimestampToTime(sth.Timestamp)
fmt.Printf("%v (timestamp %d): Got STH for %v log (size=%d) at %v, hash %x\n", when, sth.Timestamp, sth.Version, sth.TreeSize, logClient.BaseURI(), sth.SHA256RootHash)
fmt.Printf("%v\n", signatureToString(&sth.TreeHeadSignature))
}
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