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postfix_exporter_test.go
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package main
import (
"crypto/sha256"
"fmt"
"testing"
"github.com/prometheus/client_golang/prometheus"
io_prometheus_client "github.com/prometheus/client_model/go"
"github.com/stretchr/testify/assert"
)
func TestPostfixExporter_CollectFromLogline(t *testing.T) {
type fields struct {
showqPath string
logSrc LogSource
cleanupProcesses prometheus.Counter
cleanupRejects prometheus.Counter
cleanupNotAccepted prometheus.Counter
lmtpDelays *prometheus.HistogramVec
pipeDelays *prometheus.HistogramVec
qmgrInsertsNrcpt prometheus.Histogram
qmgrInsertsSize prometheus.Histogram
qmgrRemoves prometheus.Counter
smtpDelays *prometheus.HistogramVec
smtpRcpt *prometheus.CounterVec
smtpTLSConnects *prometheus.CounterVec
smtpDeferreds prometheus.Counter
smtpdConnects prometheus.Counter
smtpdDisconnects prometheus.Counter
smtpdFCrDNSErrors prometheus.Counter
smtpdLostConnections *prometheus.CounterVec
smtpdProcesses *prometheus.CounterVec
smtpdRejects *prometheus.CounterVec
smtpdSASLAuthenticationFailures prometheus.Counter
smtpdTLSConnects *prometheus.CounterVec
unsupportedLogEntries *prometheus.CounterVec
}
type args struct {
line []string
removedCount int
saslFailedCount int
outgoingTLS int
smtpdMessagesProcessed int
}
tests := []struct {
name string
fields fields
args args
}{
{
name: "Single line",
args: args{
line: []string{
"Feb 11 16:49:24 letterman postfix/qmgr[8204]: AAB4D259B1: removed",
},
removedCount: 1,
saslFailedCount: 0,
},
fields: fields{
qmgrRemoves: prometheus.NewCounter(prometheus.CounterOpts{}),
unsupportedLogEntries: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"process"}),
},
},
{
name: "Multiple lines",
args: args{
line: []string{
"Feb 11 16:49:24 letterman postfix/qmgr[8204]: AAB4D259B1: removed",
"Feb 11 16:49:24 letterman postfix/qmgr[8204]: C2032259E6: removed",
"Feb 11 16:49:24 letterman postfix/qmgr[8204]: B83C4257DC: removed",
"Feb 11 16:49:24 letterman postfix/qmgr[8204]: 721BE256EA: removed",
"Feb 11 16:49:25 letterman postfix/qmgr[8204]: CA94A259EB: removed",
"Feb 11 16:49:25 letterman postfix/qmgr[8204]: AC1E3259E1: removed",
"Feb 11 16:49:25 letterman postfix/qmgr[8204]: D114D221E3: removed",
"Feb 11 16:49:25 letterman postfix/qmgr[8204]: A55F82104D: removed",
"Feb 11 16:49:25 letterman postfix/qmgr[8204]: D6DAA259BC: removed",
"Feb 11 16:49:25 letterman postfix/qmgr[8204]: E3908259F0: removed",
"Feb 11 16:49:25 letterman postfix/qmgr[8204]: 0CBB8259BF: removed",
"Feb 11 16:49:25 letterman postfix/qmgr[8204]: EA3AD259F2: removed",
"Feb 11 16:49:25 letterman postfix/qmgr[8204]: DDEF824B48: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: 289AF21DB9: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: 6192B260E8: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: F2831259F4: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: 09D60259F8: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: 13A19259FA: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: 2D42722065: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: 746E325A0E: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: 4D2F125A02: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: E30BC259EF: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: DC88924DA1: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: 2164B259FD: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: 8C30525A14: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: 8DCCE25A15: removed",
"Feb 11 16:49:26 letterman postfix/qmgr[8204]: C5217255D5: removed",
"Feb 11 16:49:27 letterman postfix/qmgr[8204]: D8EE625A28: removed",
"Feb 11 16:49:27 letterman postfix/qmgr[8204]: 9AD7C25A19: removed",
"Feb 11 16:49:27 letterman postfix/qmgr[8204]: D0EEE2596C: removed",
"Feb 11 16:49:27 letterman postfix/qmgr[8204]: DFE732172E: removed",
},
removedCount: 31,
saslFailedCount: 0,
},
fields: fields{
qmgrRemoves: prometheus.NewCounter(prometheus.CounterOpts{}),
unsupportedLogEntries: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"process"}),
},
},
{
name: "SASL Failed",
args: args{
line: []string{
"Apr 26 10:55:19 tcc1 postfix/smtpd[21126]: warning: SASL authentication failure: cannot connect to saslauthd server: Permission denied",
"Apr 26 10:55:19 tcc1 postfix/smtpd[21126]: warning: SASL authentication failure: Password verification failed",
"Apr 26 10:55:19 tcc1 postfix/smtpd[21126]: warning: laptop.local[192.168.1.2]: SASL PLAIN authentication failed: generic failure",
},
saslFailedCount: 1,
removedCount: 0,
},
fields: fields{
smtpdSASLAuthenticationFailures: prometheus.NewCounter(prometheus.CounterOpts{}),
unsupportedLogEntries: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"process"}),
},
},
{
name: "SASL login",
args: args{
line: []string{
"Oct 30 13:19:26 mailgw-out1 postfix/smtpd[27530]: EB4B2C19E2: client=xxx[1.2.3.4], sasl_method=PLAIN, sasl_username=user@domain",
"Feb 24 16:42:00 letterman postfix/smtpd[24906]: 1CF582025C: client=xxx[2.3.4.5]",
},
removedCount: 0,
saslFailedCount: 0,
outgoingTLS: 0,
smtpdMessagesProcessed: 2,
},
fields: fields{
unsupportedLogEntries: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"process"}),
smtpdProcesses: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"sasl_method"}),
},
},
{
name: "Issue #35",
args: args{
line: []string{
"Jul 24 04:38:17 mail postfix/smtp[30582]: Verified TLS connection established to gmail-smtp-in.l.google.com[108.177.14.26]:25: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256",
"Jul 24 03:28:15 mail postfix/smtp[24052]: Verified TLS connection established to mx2.comcast.net[2001:558:fe21:2a::6]:25: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)",
},
removedCount: 0,
saslFailedCount: 0,
outgoingTLS: 2,
},
fields: fields{
unsupportedLogEntries: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"process"}),
smtpTLSConnects: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"Verified", "TLSv1.2", "ECDHE-RSA-AES256-GCM-SHA384", "256", "256"}),
},
},
{
name: "Testing delays",
args: args{
line: []string{
"Feb 24 16:18:40 letterman postfix/smtp[59649]: 5270320179: to=<hebj@telia.com>, relay=mail.telia.com[81.236.60.210]:25, delay=2017, delays=0.1/2017/0.03/0.05, dsn=2.0.0, status=sent (250 2.0.0 6FVIjIMwUJwU66FVIjAEB0 mail accepted for delivery)",
},
removedCount: 0,
saslFailedCount: 0,
outgoingTLS: 0,
smtpdMessagesProcessed: 0,
},
fields: fields{
smtpDelays: prometheus.NewHistogramVec(prometheus.HistogramOpts{}, []string{"stage"}),
smtpRcpt: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{fmt.Sprintf("%x", sha256.Sum256([]byte("hebj@telia.com"))), "telia.com", "mail.telia.com[81.236.60.210]:25"}),
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
e := &PostfixExporter{
showqPath: tt.fields.showqPath,
logSrc: tt.fields.logSrc,
cleanupProcesses: tt.fields.cleanupProcesses,
cleanupRejects: tt.fields.cleanupRejects,
cleanupNotAccepted: tt.fields.cleanupNotAccepted,
lmtpDelays: tt.fields.lmtpDelays,
pipeDelays: tt.fields.pipeDelays,
qmgrInsertsNrcpt: tt.fields.qmgrInsertsNrcpt,
qmgrInsertsSize: tt.fields.qmgrInsertsSize,
qmgrRemoves: tt.fields.qmgrRemoves,
smtpDelays: tt.fields.smtpDelays,
smtpRcpt: tt.fields.smtpRcpt,
smtpTLSConnects: tt.fields.smtpTLSConnects,
smtpDeferreds: tt.fields.smtpDeferreds,
smtpdConnects: tt.fields.smtpdConnects,
smtpdDisconnects: tt.fields.smtpdDisconnects,
smtpdFCrDNSErrors: tt.fields.smtpdFCrDNSErrors,
smtpdLostConnections: tt.fields.smtpdLostConnections,
smtpdProcesses: tt.fields.smtpdProcesses,
smtpdRejects: tt.fields.smtpdRejects,
smtpdSASLAuthenticationFailures: tt.fields.smtpdSASLAuthenticationFailures,
smtpdTLSConnects: tt.fields.smtpdTLSConnects,
unsupportedLogEntries: tt.fields.unsupportedLogEntries,
logUnsupportedLines: true,
}
for _, line := range tt.args.line {
e.CollectFromLogLine(line)
}
assertCounterEquals(t, e.qmgrRemoves, tt.args.removedCount, "Wrong number of lines counted")
assertCounterEquals(t, e.smtpdSASLAuthenticationFailures, tt.args.saslFailedCount, "Wrong number of Sasl counter counted")
assertCounterEquals(t, e.smtpTLSConnects, tt.args.outgoingTLS, "Wrong number of TLS connections counted")
assertCounterEquals(t, e.smtpdProcesses, tt.args.smtpdMessagesProcessed, "Wrong number of smtpd messages processed")
})
}
}
func assertCounterEquals(t *testing.T, counter prometheus.Collector, expected int, message string) {
if counter != nil && expected > 0 {
switch counter.(type) {
case *prometheus.CounterVec:
counter := counter.(*prometheus.CounterVec)
metricsChan := make(chan prometheus.Metric)
go func() {
counter.Collect(metricsChan)
close(metricsChan)
}()
var count int = 0
for metric := range metricsChan {
metricDto := io_prometheus_client.Metric{}
metric.Write(&metricDto)
count += int(*metricDto.Counter.Value)
}
assert.Equal(t, expected, count, message)
case prometheus.Counter:
metricsChan := make(chan prometheus.Metric)
go func() {
counter.Collect(metricsChan)
close(metricsChan)
}()
var count int = 0
for metric := range metricsChan {
metricDto := io_prometheus_client.Metric{}
metric.Write(&metricDto)
count += int(*metricDto.Counter.Value)
}
assert.Equal(t, expected, count, message)
default:
t.Fatal("Type not implemented")
}
}
}