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Status-Code matching #69

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22 changes: 19 additions & 3 deletions main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,10 @@ func main() {
var method string
flag.StringVar(&method, "method", "GET", "HTTP method to use")

// HTTP status code to parse
var statusCodeToMatch int
flag.IntVar(&statusCodeToMatch, "mc", 1, "status code to match (default none)")

flag.Parse()

// make an actual time.Duration out of the timeout
Expand Down Expand Up @@ -96,7 +100,7 @@ func main() {

// always try HTTPS first
withProto := "https://" + url
if isListening(client, withProto, method) {
if isListening(client, withProto, method, statusCodeToMatch) {
output <- withProto

// skip trying HTTP if --prefer-https is set
Expand All @@ -120,7 +124,7 @@ func main() {
go func() {
for url := range httpURLs {
withProto := "http://" + url
if isListening(client, withProto, method) {
if isListening(client, withProto, method, statusCodeToMatch) {
output <- withProto
continue
}
Expand Down Expand Up @@ -210,7 +214,7 @@ func main() {
outputWG.Wait()
}

func isListening(client *http.Client, url, method string) bool {
func isListening(client *http.Client, url, method string, statusCodeToMatch int) bool {

req, err := http.NewRequest(method, url, nil)
if err != nil {
Expand All @@ -223,6 +227,18 @@ func isListening(client *http.Client, url, method string) bool {
resp, err := client.Do(req)
if resp != nil {
io.Copy(ioutil.Discard, resp.Body)
//are we parsing status codes?
if statusCodeToMatch != 1 {

//is it the wrong code
if resp.StatusCode != statusCodeToMatch {

//if so cloase the resp var and close
resp.Body.Close()
return false
}

}
resp.Body.Close()
}

Expand Down