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postfix_exporter_test.go
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postfix_exporter_test.go
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package main
import (
"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
qmgrExpires prometheus.Counter
smtpDelays *prometheus.HistogramVec
smtpTLSConnects *prometheus.CounterVec
smtpDeferreds prometheus.Counter
smtpStatusDeferred prometheus.Counter
smtpProcesses *prometheus.CounterVec
smtpdConnects prometheus.Counter
smtpdDisconnects prometheus.Counter
smtpdFCrDNSErrors prometheus.Counter
smtpdLostConnections *prometheus.CounterVec
smtpdProcesses *prometheus.CounterVec
smtpdRejects *prometheus.CounterVec
smtpdSASLAuthenticationFailures prometheus.Counter
smtpdTLSConnects *prometheus.CounterVec
bounceNonDelivery prometheus.Counter
virtualDelivered prometheus.Counter
unsupportedLogEntries *prometheus.CounterVec
}
type args struct {
line []string
removedCount int
expiredCount int
saslFailedCount int
outgoingTLS int
smtpdMessagesProcessed int
smtpMessagesProcessed int
bounceNonDelivery int
virtualDelivered int
unsupportedLogEntries []string
}
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{"service", "level"}),
},
},
{
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{"service", "level"}),
},
},
{
name: "qmgr expired",
args: args{
line: []string{
"Apr 10 14:50:16 mail postfix/qmgr[3663]: BACE842E72: from=<noreply@domain.com>, status=expired, returned to sender",
"Apr 10 14:50:16 mail postfix/qmgr[3663]: BACE842E73: from=<noreply@domain.com>, status=force-expired, returned to sender",
},
expiredCount: 2,
},
fields: fields{
qmgrExpires: prometheus.NewCounter(prometheus.CounterOpts{}),
},
},
{
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{"service", "level"}),
smtpProcesses: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"status"}),
},
},
{
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{"service", "level"}),
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,
smtpdMessagesProcessed: 0,
},
fields: fields{
unsupportedLogEntries: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"service", "level"}),
smtpTLSConnects: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"Verified", "TLSv1.2", "ECDHE-RSA-AES256-GCM-SHA384", "256", "256"}),
smtpProcesses: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"status"}),
},
},
{
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,
smtpMessagesProcessed: 1,
},
fields: fields{
smtpDelays: prometheus.NewHistogramVec(prometheus.HistogramOpts{}, []string{"stage"}),
smtpProcesses: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"status"}),
},
},
{
name: "Testing different smtp statuses",
args: args{
line: []string{
"Dec 29 02:54:09 mail postfix/smtp[7648]: 732BB407C3: host mail.domain.com[1.1.1.1] said: 451 DT:SPM 163 mx13,P8CowECpNVM_oEVaenoEAQ--.23796S3 1514512449, please try again 15min later (in reply to end of DATA command)",
"Dec 29 02:54:12 mail postfix/smtp[7648]: 732BB407C3: to=<redacted@domain.com>, relay=mail.domain.com[1.1.1.1]:25, delay=6.2, delays=0.1/0/5.2/0.87, dsn=4.0.0, status=deferred (host mail.domain.com[1.1.1.1] said: 451 DT:SPM 163 mx40,WsCowAAnEhlCoEVa5GjcAA--.20089S3 1514512452, please try again 15min later (in reply to end of DATA command))",
"Dec 29 03:03:48 mail postfix/smtp[8492]: 732BB407C3: to=<redacted@domain.com>, relay=mail.domain.com[1.1.1.1]:25, delay=582, delays=563/16/1.7/0.81, dsn=5.0.0, status=bounced (host mail.domain.com[1.1.1.1] said: 554 DT:SPM 163 mx9,O8CowEDJVFKCokVaRhz+AA--.26016S3 1514513028,please see http://mail.domain.com/help/help_spam.htm?ip= (in reply to end of DATA command))",
"Dec 29 03:03:48 mail postfix/bounce[9321]: 732BB407C3: sender non-delivery notification: 5DE184083C",
},
smtpMessagesProcessed: 2,
bounceNonDelivery: 1,
},
fields: fields{
unsupportedLogEntries: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"service", "level"}),
smtpDelays: prometheus.NewHistogramVec(prometheus.HistogramOpts{}, []string{"stage"}),
smtpStatusDeferred: prometheus.NewCounter(prometheus.CounterOpts{}),
smtpProcesses: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"status"}),
bounceNonDelivery: prometheus.NewCounter(prometheus.CounterOpts{}),
},
},
{
name: "Testing virtual delivered",
args: args{
line: []string{
"Apr 7 15:35:20 123-mail postfix/virtual[20235]: 199041033BE: to=<me@domain.fr>, relay=virtual, delay=0.08, delays=0.08/0/0/0, dsn=2.0.0, status=sent (delivered to maildir)",
},
virtualDelivered: 1,
},
fields: fields{
virtualDelivered: prometheus.NewCounter(prometheus.CounterOpts{}),
},
},
{
name: "Testing levels of unsupported entries",
args: args{
line: []string{
"Feb 14 19:05:25 123-mail postfix/smtpd[1517]: table hash:/etc/postfix/virtual_mailbox_maps(0,lock|fold_fix) has changed -- restarting",
"Mar 16 12:28:02 123-mail postfix/smtpd[16268]: fatal: file /etc/postfix/main.cf: parameter default_privs: unknown user name value: nobody",
"Mar 16 23:30:44 123-mail postfix/qmgr[29980]: warning: please avoid flushing the whole queue when you have",
"Mar 16 23:30:44 123-mail postfix/qmgr[29980]: warning: lots of deferred mail, that is bad for performance",
},
unsupportedLogEntries: []string{
`label:<name:"level" value:"" > label:<name:"service" value:"smtpd" > counter:<value:1 > `,
`label:<name:"level" value:"fatal" > label:<name:"service" value:"smtpd" > counter:<value:1 > `,
`label:<name:"level" value:"warning" > label:<name:"service" value:"qmgr" > counter:<value:2 > `,
},
},
fields: fields{
unsupportedLogEntries: prometheus.NewCounterVec(prometheus.CounterOpts{}, []string{"service", "level"}),
},
},
}
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,
qmgrExpires: tt.fields.qmgrExpires,
smtpDelays: tt.fields.smtpDelays,
smtpTLSConnects: tt.fields.smtpTLSConnects,
smtpDeferreds: tt.fields.smtpDeferreds,
smtpStatusDeferred: tt.fields.smtpStatusDeferred,
smtpProcesses: tt.fields.smtpProcesses,
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,
bounceNonDelivery: tt.fields.bounceNonDelivery,
virtualDelivered: tt.fields.virtualDelivered,
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.qmgrExpires, tt.args.expiredCount, "Wrong number of qmgr expired 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")
assertCounterEquals(t, e.smtpProcesses, tt.args.smtpMessagesProcessed, "Wrong number of smtp messages processed")
assertCounterEquals(t, e.bounceNonDelivery, tt.args.bounceNonDelivery, "Wrong number of non delivery notifications")
assertCounterEquals(t, e.virtualDelivered, tt.args.virtualDelivered, "Wrong number of delivered mails")
assertVecMetricsEquals(t, e.unsupportedLogEntries, tt.args.unsupportedLogEntries, "Wrong number of unsupportedLogEntries")
})
}
}
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")
}
}
}
func assertVecMetricsEquals(t *testing.T, counter *prometheus.CounterVec, expected []string, message string) {
if expected != nil {
metricsChan := make(chan prometheus.Metric)
go func() {
counter.Collect(metricsChan)
close(metricsChan)
}()
var res []string
for metric := range metricsChan {
metricDto := io_prometheus_client.Metric{}
metric.Write(&metricDto)
res = append(res, metricDto.String())
}
assert.Equal(t, expected, res, message)
}
}