telegraf/plugins/inputs/fail2ban/fail2ban_test.go

126 lines
3.0 KiB
Go

package fail2ban
import (
"fmt"
"os"
"os/exec"
"strings"
"testing"
"github.com/influxdata/telegraf/testutil"
)
// By all rights, we should use `string literal`, but the string contains "`".
var execStatusOutput = "Status\n" +
"|- Number of jail:\t3\n" +
"`- Jail list:\tdovecot, postfix, sshd"
var execStatusDovecotOutput = "Status for the jail: dovecot\n" +
"|- Filter\n" +
"| |- Currently failed:\t11\n" +
"| |- Total failed:\t22\n" +
"| `- File list:\t/var/log/maillog\n" +
"`- Actions\n" +
" |- Currently banned:\t0\n" +
" |- Total banned:\t100\n" +
" `- Banned IP list:"
var execStatusPostfixOutput = "Status for the jail: postfix\n" +
"|- Filter\n" +
"| |- Currently failed:\t4\n" +
"| |- Total failed:\t10\n" +
"| `- File list:\t/var/log/maillog\n" +
"`- Actions\n" +
" |- Currently banned:\t3\n" +
" |- Total banned:\t60\n" +
" `- Banned IP list:\t192.168.10.1 192.168.10.3"
var execStatusSshdOutput = "Status for the jail: sshd\n" +
"|- Filter\n" +
"| |- Currently failed:\t0\n" +
"| |- Total failed:\t5\n" +
"| `- File list:\t/var/log/secure\n" +
"`- Actions\n" +
" |- Currently banned:\t2\n" +
" |- Total banned:\t50\n" +
" `- Banned IP list:\t192.168.0.1 192.168.1.1"
func TestGather(t *testing.T) {
f := Fail2ban{
path: "/usr/bin/fail2ban-client",
}
execCommand = fakeExecCommand
defer func() { execCommand = exec.Command }()
var acc testutil.Accumulator
err := f.Gather(&acc)
if err != nil {
t.Fatal(err)
}
fields1 := map[string]interface{}{
"banned": 2,
"failed": 0,
}
tags1 := map[string]string{
"jail": "sshd",
}
fields2 := map[string]interface{}{
"banned": 3,
"failed": 4,
}
tags2 := map[string]string{
"jail": "postfix",
}
fields3 := map[string]interface{}{
"banned": 0,
"failed": 11,
}
tags3 := map[string]string{
"jail": "dovecot",
}
acc.AssertContainsTaggedFields(t, "fail2ban", fields1, tags1)
acc.AssertContainsTaggedFields(t, "fail2ban", fields2, tags2)
acc.AssertContainsTaggedFields(t, "fail2ban", fields3, tags3)
}
func fakeExecCommand(command string, args ...string) *exec.Cmd {
cs := []string{"-test.run=TestHelperProcess", "--", command}
cs = append(cs, args...)
cmd := exec.Command(os.Args[0], cs...)
cmd.Env = []string{"GO_WANT_HELPER_PROCESS=1"}
return cmd
}
func TestHelperProcess(t *testing.T) {
if os.Getenv("GO_WANT_HELPER_PROCESS") != "1" {
return
}
args := os.Args
cmd, args := args[3], args[4:]
if !strings.HasSuffix(cmd, "fail2ban-client") {
fmt.Fprint(os.Stdout, "command not found")
os.Exit(1)
}
if len(args) == 1 && args[0] == "status" {
fmt.Fprint(os.Stdout, execStatusOutput)
os.Exit(0)
} else if len(args) == 2 && args[0] == "status" {
if args[1] == "sshd" {
fmt.Fprint(os.Stdout, execStatusSshdOutput)
os.Exit(0)
} else if args[1] == "postfix" {
fmt.Fprint(os.Stdout, execStatusPostfixOutput)
os.Exit(0)
} else if args[1] == "dovecot" {
fmt.Fprint(os.Stdout, execStatusDovecotOutput)
os.Exit(0)
}
}
fmt.Fprint(os.Stdout, "invalid argument")
os.Exit(1)
}