postfix_exporter.go: Fix some gosec issues.

See,
$ gometalinter --vendor ./...
postfix_exporter.go:249:⚠️ Potential file inclusion via variable,MEDIUM,HIGH (gosec)
postfix_exporter.go:80:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:121:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:296:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:298:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:300:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:302:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:309:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:311:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:313:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:315:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:322:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:324:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:333:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:335:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:337:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:339:⚠️ Errors unhandled.,LOW,HIGH (gosec)
postfix_exporter.go:650:⚠️ Errors unhandled.,LOW,HIGH (gosec)
This commit is contained in:
Mario Trangoni 2018-12-04 16:10:28 +01:00
parent b3b6568777
commit 7fa2e37607

View File

@ -77,7 +77,10 @@ type PostfixExporter struct {
// for null bytes in the first 128 bytes of output.
func CollectShowqFromReader(file io.Reader, ch chan<- prometheus.Metric) error {
reader := bufio.NewReader(file)
buf, _ := reader.Peek(128)
buf, err := reader.Peek(128)
if err != nil {
log.Printf("Could not read postfix output, %v", err)
}
if bytes.IndexByte(buf, 0) >= 0 {
return CollectBinaryShowqFromReader(reader, ch)
}
@ -118,7 +121,11 @@ func CollectTextualShowqFromReader(file io.Reader, ch chan<- prometheus.Metric)
}
now := time.Now()
location, _ := time.LoadLocation("Local")
location, err := time.LoadLocation("Local")
if err != nil {
log.Println(err)
}
for scanner.Scan() {
matches := messageLine.FindStringSubmatch(scanner.Text())
if matches != nil {
@ -293,35 +300,65 @@ func (e *PostfixExporter) CollectFromLogline(line string) {
}
} else if logMatches[1] == "lmtp" {
if lmtpMatches := lmtpPipeSMTPLine.FindStringSubmatch(logMatches[2]); lmtpMatches != nil {
pdelay, _ := strconv.ParseFloat(lmtpMatches[2], 64)
pdelay, err := strconv.ParseFloat(lmtpMatches[2], 64)
if err != nil {
log.Printf("Couldn't convert LMTP pdelay: %v", err)
}
e.lmtpDelays.WithLabelValues("before_queue_manager").Observe(pdelay)
adelay, _ := strconv.ParseFloat(lmtpMatches[3], 64)
adelay, err := strconv.ParseFloat(lmtpMatches[3], 64)
if err != nil {
log.Printf("Couldn't convert LMTP adelay: %v", err)
}
e.lmtpDelays.WithLabelValues("queue_manager").Observe(adelay)
sdelay, _ := strconv.ParseFloat(lmtpMatches[4], 64)
sdelay, err := strconv.ParseFloat(lmtpMatches[4], 64)
if err != nil {
log.Printf("Couldn't convert LMTP adelay: %v", err)
}
e.lmtpDelays.WithLabelValues("connection_setup").Observe(sdelay)
xdelay, _ := strconv.ParseFloat(lmtpMatches[5], 64)
xdelay, err := strconv.ParseFloat(lmtpMatches[5], 64)
if err != nil {
log.Printf("Couldn't convert LMTP xdelay: %v", err)
}
e.lmtpDelays.WithLabelValues("transmission").Observe(xdelay)
} else {
e.unsupportedLogEntries.WithLabelValues(logMatches[1]).Inc()
}
} else if logMatches[1] == "pipe" {
if pipeMatches := lmtpPipeSMTPLine.FindStringSubmatch(logMatches[2]); pipeMatches != nil {
pdelay, _ := strconv.ParseFloat(pipeMatches[2], 64)
pdelay, err := strconv.ParseFloat(pipeMatches[2], 64)
if err != nil {
log.Printf("Couldn't convert PIPE pdelay: %v", err)
}
e.pipeDelays.WithLabelValues(pipeMatches[1], "before_queue_manager").Observe(pdelay)
adelay, _ := strconv.ParseFloat(pipeMatches[3], 64)
adelay, err := strconv.ParseFloat(pipeMatches[3], 64)
if err != nil {
log.Printf("Couldn't convert PIPE adelay: %v", err)
}
e.pipeDelays.WithLabelValues(pipeMatches[1], "queue_manager").Observe(adelay)
sdelay, _ := strconv.ParseFloat(pipeMatches[4], 64)
sdelay, err := strconv.ParseFloat(pipeMatches[4], 64)
if err != nil {
log.Printf("Couldn't convert PIPE sdelay: %v", err)
}
e.pipeDelays.WithLabelValues(pipeMatches[1], "connection_setup").Observe(sdelay)
xdelay, _ := strconv.ParseFloat(pipeMatches[5], 64)
xdelay, err := strconv.ParseFloat(pipeMatches[5], 64)
if err != nil {
log.Printf("Couldn't convert PIPE xdelay: %v", err)
}
e.pipeDelays.WithLabelValues(pipeMatches[1], "transmission").Observe(xdelay)
} else {
e.unsupportedLogEntries.WithLabelValues(logMatches[1]).Inc()
}
} else if logMatches[1] == "qmgr" {
if qmgrInsertMatches := qmgrInsertLine.FindStringSubmatch(logMatches[2]); qmgrInsertMatches != nil {
size, _ := strconv.ParseFloat(qmgrInsertMatches[1], 64)
size, err := strconv.ParseFloat(qmgrInsertMatches[1], 64)
if err != nil {
log.Printf("Couldn't convert QMGR size: %v", err)
}
e.qmgrInsertsSize.Observe(size)
nrcpt, _ := strconv.ParseFloat(qmgrInsertMatches[2], 64)
nrcpt, err := strconv.ParseFloat(qmgrInsertMatches[2], 64)
if err != nil {
log.Printf("Couldn't convert QMGR nrcpt: %v", err)
}
e.qmgrInsertsNrcpt.Observe(nrcpt)
} else if strings.HasSuffix(logMatches[2], ": removed") {
e.qmgrRemoves.Inc()
@ -330,13 +367,25 @@ func (e *PostfixExporter) CollectFromLogline(line string) {
}
} else if logMatches[1] == "smtp" {
if smtpMatches := lmtpPipeSMTPLine.FindStringSubmatch(logMatches[2]); smtpMatches != nil {
pdelay, _ := strconv.ParseFloat(smtpMatches[2], 64)
pdelay, err := strconv.ParseFloat(smtpMatches[2], 64)
if err != nil {
log.Printf("Couldn't convert SMTP pdelay: %v", err)
}
e.smtpDelays.WithLabelValues("before_queue_manager").Observe(pdelay)
adelay, _ := strconv.ParseFloat(smtpMatches[3], 64)
adelay, err := strconv.ParseFloat(smtpMatches[3], 64)
if err != nil {
log.Printf("Couldn't convert SMTP adelay: %v", err)
}
e.smtpDelays.WithLabelValues("queue_manager").Observe(adelay)
sdelay, _ := strconv.ParseFloat(smtpMatches[4], 64)
sdelay, err := strconv.ParseFloat(smtpMatches[4], 64)
if err != nil {
log.Printf("Couldn't convert SMTP sdelay: %v", err)
}
e.smtpDelays.WithLabelValues("connection_setup").Observe(sdelay)
xdelay, _ := strconv.ParseFloat(smtpMatches[5], 64)
xdelay, err := strconv.ParseFloat(smtpMatches[5], 64)
if err != nil {
log.Printf("Couldn't convert SMTP xdelay: %v", err)
}
e.smtpDelays.WithLabelValues("transmission").Observe(xdelay)
} else if smtpTLSMatches := smtpTLSLine.FindStringSubmatch(logMatches[2]); smtpTLSMatches != nil {
e.smtpTLSConnects.WithLabelValues(smtpTLSMatches[1:]...).Inc()
@ -647,7 +696,7 @@ func main() {
http.Handle(*metricsPath, prometheus.Handler())
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte(`
_, err = w.Write([]byte(`
<html>
<head><title>Postfix Exporter</title></head>
<body>
@ -655,6 +704,9 @@ func main() {
<p><a href='` + *metricsPath + `'>Metrics</a></p>
</body>
</html>`))
if err != nil {
panic(err)
}
})
log.Print("Listening on ", *listenAddress)