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// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
// coroner performs post-mortem autospies on Algorand nodes
package main
import (
"flag"
"log"
"os"
"regexp"
"strconv"
"github.com/algorand/go-algorand/agreement"
"github.com/algorand/go-algorand/config"
"github.com/algorand/go-algorand/data/basics"
)
var numRegex = regexp.MustCompile(`^\d+$`)
var filename = flag.String("file", "", "Name of the input cadaver file (otherwise, use stdin)")
var versionCheck = flag.Bool("version", false, "Display current coroner build version and exit")
var printmsgpack = flag.Bool("msgpack", false, "If provided, emit msgpack instead of a string")
var skipHead = flag.String("skip-head", "", "The first round to trim before")
var skipTail = flag.String("skip-tail", "", "The last round to trim after")
func mustParse(data []byte) uint64 {
x, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
log.Fatalf(`failed to parse round bound in "%s": %s`, string(data), err)
}
return x
}
func parseRoundBound(s string) uint64 {
if !numRegex.Match([]byte(s)) {
log.Fatalf(`failed to parse round bound in "%s": string does not match regex "^\d+$"`, s)
}
return mustParse(numRegex.Find([]byte(s)))
}
func done(n int, err error) {
if n == 0 {
log.Println("coroner: no cadavers autopsied")
}
if err != nil {
log.Println("coroner: failed to extract full autopsy trace:", err)
}
}
func nextBounds(i int, bounds agreement.AutopsyBounds) {
log.Printf("cadaver seq: %d\tstart(r,p): (%d,%d)\tend(r,p): (%d,%d)\n", i, bounds.StartRound, bounds.StartPeriod, bounds.EndRound, bounds.EndPeriod)
}
func main() {
flag.Parse()
var autopsy *agreement.Autopsy
var err error
version := config.GetCurrentVersion()
if *versionCheck {
log.Printf("uint64 version: %d\n%s.%s [%s] (commit #%s)\n", version.AsUInt64(), version.String(),
version.Channel, version.Branch, version.GetCommitHash())
return
}
if *filename == "" {
log.Println("coroner: no filename provided; reading from stdin...")
autopsy, err = agreement.PrepareAutopsyFromStream(os.Stdin, nextBounds, done)
} else {
autopsy, err = agreement.PrepareAutopsy(*filename, nextBounds, done)
}
if err != nil {
log.Fatalln("coroner: failed to prepare autopsy:", err)
}
defer autopsy.Close()
var filter agreement.AutopsyFilter
if *skipHead != "" {
filter.Enabled = true
filter.First = basics.Round(parseRoundBound(*skipHead))
}
if *skipTail != "" {
filter.Enabled = true
filter.Last = basics.Round(parseRoundBound(*skipTail))
}
var commitHash string
if *printmsgpack {
commitHash = autopsy.DumpMessagePack(filter, os.Stdout)
} else {
commitHash = autopsy.DumpString(filter, os.Stdout)
}
if commitHash != version.GetCommitHash() {
log.Printf("coroner: cadaver version mismatches coroner version:\n(%s (cadaver) != %s (coroner))\n", commitHash, version.GetCommitHash())
}
return
}
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