cscli explain: add crowdsec path option (#1983)

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mmetc 2023-01-12 17:04:28 +01:00 committed by GitHub
parent ba4396e52c
commit 157589d31e
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 172 additions and 114 deletions

View file

@ -15,16 +15,149 @@ import (
"github.com/crowdsecurity/crowdsec/pkg/types"
)
func NewExplainCmd() *cobra.Command {
/* ---- HUB COMMAND */
var logFile string
var dsn string
var logLine string
var logType string
var opts hubtest.DumpOpts
var err error
func runExplain(cmd *cobra.Command, args []string) error {
flags := cmd.Flags()
var cmdExplain = &cobra.Command{
logFile, err := flags.GetString("file")
if err != nil {
return err
}
dsn, err := flags.GetString("dsn")
if err != nil {
return err
}
logLine, err := flags.GetString("log")
if err != nil {
return err
}
logType, err := flags.GetString("type")
if err != nil {
return err
}
opts := hubtest.DumpOpts{}
opts.Details, err = flags.GetBool("verbose")
if err != nil {
return err
}
opts.SkipOk, err = flags.GetBool("failures")
if err != nil {
return err
}
crowdsec, err := flags.GetString("crowdsec")
if err != nil {
return err
}
fileInfo, _ := os.Stdin.Stat()
if logType == "" || (logLine == "" && logFile == "" && dsn == "") {
printHelp(cmd)
fmt.Println()
fmt.Printf("Please provide --type flag\n")
os.Exit(1)
}
if logFile == "-" && ((fileInfo.Mode() & os.ModeCharDevice) == os.ModeCharDevice) {
log.Fatal("-f - is intended to work with pipes.")
}
var f *os.File
dir := os.TempDir()
tmpFile := ""
// we create a temporary log file if a log line/stdin has been provided
if logLine != "" || logFile == "-" {
tmpFile = filepath.Join(dir, "cscli_test_tmp.log")
f, err = os.Create(tmpFile)
if err != nil {
log.Fatal(err)
}
if logLine != "" {
_, err = f.WriteString(logLine)
if err != nil {
log.Fatal(err)
}
} else if logFile == "-" {
reader := bufio.NewReader(os.Stdin)
errCount := 0
for {
input, err := reader.ReadBytes('\n')
if err != nil && err == io.EOF {
break
}
_, err = f.Write(input)
if err != nil {
errCount++
}
}
if errCount > 0 {
log.Warnf("Failed to write %d lines to tmp file", errCount)
}
}
f.Close()
// this is the file that was going to be read by crowdsec anyway
logFile = tmpFile
}
if logFile != "" {
absolutePath, err := filepath.Abs(logFile)
if err != nil {
log.Fatalf("unable to get absolute path of '%s', exiting", logFile)
}
dsn = fmt.Sprintf("file://%s", absolutePath)
lineCount := types.GetLineCountForFile(absolutePath)
if lineCount > 100 {
log.Warnf("log file contains %d lines. This may take lot of resources.", lineCount)
}
}
if dsn == "" {
log.Fatal("no acquisition (--file or --dsn) provided, can't run cscli test.")
}
cmdArgs := []string{"-c", ConfigFilePath, "-type", logType, "-dsn", dsn, "-dump-data", "./", "-no-api"}
crowdsecCmd := exec.Command(crowdsec, cmdArgs...)
crowdsecCmd.Dir = dir
output, err := crowdsecCmd.CombinedOutput()
if err != nil {
fmt.Println(string(output))
log.Fatalf("fail to run crowdsec for test: %v", err)
}
// rm the temporary log file if only a log line/stdin was provided
if tmpFile != "" {
if err := os.Remove(tmpFile); err != nil {
log.Fatalf("unable to remove tmp log file '%s': %+v", tmpFile, err)
}
}
parserDumpFile := filepath.Join(dir, hubtest.ParserResultFileName)
bucketStateDumpFile := filepath.Join(dir, hubtest.BucketPourResultFileName)
parserDump, err := hubtest.LoadParserDump(parserDumpFile)
if err != nil {
log.Fatalf("unable to load parser dump result: %s", err)
}
bucketStateDump, err := hubtest.LoadBucketPourDump(bucketStateDumpFile)
if err != nil {
log.Fatalf("unable to load bucket dump result: %s", err)
}
hubtest.DumpTree(*parserDump, *bucketStateDump, opts)
return nil
}
func NewExplainCmd() *cobra.Command {
cmdExplain := &cobra.Command{
Use: "explain",
Short: "Explain log pipeline",
Long: `
@ -38,112 +171,18 @@ tail -n 5 myfile.log | cscli explain --type nginx -f -
`,
Args: cobra.ExactArgs(0),
DisableAutoGenTag: true,
Run: func(cmd *cobra.Command, args []string) {
fileInfo, _ := os.Stdin.Stat()
if logType == "" || (logLine == "" && logFile == "" && dsn == "") {
printHelp(cmd)
fmt.Println()
fmt.Printf("Please provide --type flag\n")
os.Exit(1)
}
if logFile == "-" && ((fileInfo.Mode() & os.ModeCharDevice) == os.ModeCharDevice) {
log.Fatal("-f - is intended to work with pipes.")
}
var f *os.File
dir := os.TempDir()
tmpFile := ""
// we create a temporary log file if a log line/stdin has been provided
if logLine != "" || logFile == "-" {
tmpFile = filepath.Join(dir, "cscli_test_tmp.log")
f, err = os.Create(tmpFile)
if err != nil {
log.Fatal(err)
}
if logLine != "" {
_, err = f.WriteString(logLine)
if err != nil {
log.Fatal(err)
}
} else if logFile == "-" {
reader := bufio.NewReader(os.Stdin)
errCount := 0
for {
input, err := reader.ReadBytes('\n')
if err != nil && err == io.EOF {
break
}
_, err = f.Write(input)
if err != nil {
errCount++
}
}
if errCount > 0 {
log.Warnf("Failed to write %d lines to tmp file", errCount)
}
}
f.Close()
//this is the file that was going to be read by crowdsec anyway
logFile = tmpFile
}
if logFile != "" {
absolutePath, err := filepath.Abs(logFile)
if err != nil {
log.Fatalf("unable to get absolute path of '%s', exiting", logFile)
}
dsn = fmt.Sprintf("file://%s", absolutePath)
lineCount := types.GetLineCountForFile(absolutePath)
if lineCount > 100 {
log.Warnf("log file contains %d lines. This may take lot of resources.", lineCount)
}
}
if dsn == "" {
log.Fatal("no acquisition (--file or --dsn) provided, can't run cscli test.")
}
cmdArgs := []string{"-c", ConfigFilePath, "-type", logType, "-dsn", dsn, "-dump-data", "./", "-no-api"}
crowdsecCmd := exec.Command("crowdsec", cmdArgs...)
crowdsecCmd.Dir = dir
output, err := crowdsecCmd.CombinedOutput()
if err != nil {
fmt.Println(string(output))
log.Fatalf("fail to run crowdsec for test: %v", err)
}
// rm the temporary log file if only a log line/stdin was provided
if tmpFile != "" {
if err := os.Remove(tmpFile); err != nil {
log.Fatalf("unable to remove tmp log file '%s': %+v", tmpFile, err)
}
}
parserDumpFile := filepath.Join(dir, hubtest.ParserResultFileName)
bucketStateDumpFile := filepath.Join(dir, hubtest.BucketPourResultFileName)
parserDump, err := hubtest.LoadParserDump(parserDumpFile)
if err != nil {
log.Fatalf("unable to load parser dump result: %s", err)
}
bucketStateDump, err := hubtest.LoadBucketPourDump(bucketStateDumpFile)
if err != nil {
log.Fatalf("unable to load bucket dump result: %s", err)
}
hubtest.DumpTree(*parserDump, *bucketStateDump, opts)
},
RunE: runExplain,
}
cmdExplain.PersistentFlags().StringVarP(&logFile, "file", "f", "", "Log file to test")
cmdExplain.PersistentFlags().StringVarP(&dsn, "dsn", "d", "", "DSN to test")
cmdExplain.PersistentFlags().StringVarP(&logLine, "log", "l", "", "Log line to test")
cmdExplain.PersistentFlags().StringVarP(&logType, "type", "t", "", "Type of the acquisition to test")
cmdExplain.PersistentFlags().BoolVarP(&opts.Details, "verbose", "v", false, "Display individual changes")
cmdExplain.PersistentFlags().BoolVar(&opts.SkipOk, "failures", false, "Only show failed lines")
flags := cmdExplain.Flags()
flags.StringP("file", "f", "", "Log file to test")
flags.StringP("dsn", "d", "", "DSN to test")
flags.StringP("log", "l", "", "Log line to test")
flags.StringP("type", "t", "", "Type of the acquisition to test")
flags.BoolP("verbose", "v", false, "Display individual changes")
flags.Bool("failures", false, "Only show failed lines")
flags.String("crowdsec", "crowdsec", "Path to crowdsec")
return cmdExplain
}

View file

@ -274,3 +274,8 @@ declare stderr
run -0 cscli support dump -f "$BATS_TEST_TMPDIR"/dump.zip
assert_file_exist "$BATS_TEST_TMPDIR"/dump.zip
}
@test "cscli explain" {
rune -0 cscli explain --log "Sep 19 18:33:22 scw-d95986 sshd[24347]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.2.3.4" --type syslog --crowdsec "$CROWDSEC"
assert_output - <"$BATS_TEST_DIRNAME"/testdata/explain/explain-log.txt
}

View file

@ -0,0 +1,14 @@
line: Sep 19 18:33:22 scw-d95986 sshd[24347]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=1.2.3.4
├ s00-raw
| └ 🟢 crowdsecurity/syslog-logs (first_parser)
├ s01-parse
| └ 🟢 crowdsecurity/sshd-logs (+8 ~1)
├ s02-enrich
| ├ 🟢 crowdsecurity/dateparse-enrich (+2 ~1)
| └ 🟢 crowdsecurity/geoip-enrich (+10)
├-------- parser success 🟢
├ Scenarios
├ 🟢 crowdsecurity/ssh-bf
├ 🟢 crowdsecurity/ssh-bf_user-enum
├ 🟢 crowdsecurity/ssh-slow-bf
└ 🟢 crowdsecurity/ssh-slow-bf_user-enum