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improve cli input validation

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This commit is contained in:
Tom Andrade 2019-05-01 00:50:00 +02:00
parent c3b26395e1
commit 4a69686f81
Signed by: wolvie
GPG Key ID: 31AAB07872E82669
1 changed files with 18 additions and 2 deletions
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20
main.go
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@ -8,6 +8,7 @@ import (
"io/ioutil"
"log"
"math/rand"
"net"
"net/http"
"net/url"
"os"
@ -205,7 +206,7 @@ func main() {
flag.StringVar(&domain, "domain", "localhost", "Domain to write to the URLs")
flag.StringVar(&dumpFile, "dump", "urls.json", "Path to the file to dump the kv db")
flag.StringVar(&path, "path", "", "Path to the base URL (https://localhost/PATH/... remember to append a / at the end")
flag.StringVar(&port, "port", "8080", "Port to listen for connections")
flag.IntVar(&port, "port", 8080, "Port to listen for connections")
flag.StringVar(&proto, "proto", "https", "proto to the base URL (HTTPS://localhost/path/... no real https here just to set the url (for like a proxy offloading https")
flag.IntVar(&urlSize, "urlsize", 10, "Define the size of the shortened String, default 10")
version := flag.Bool("v", false, "prints current version")
@ -215,11 +216,26 @@ func main() {
os.Exit(0)
}
if port > 65535 || port < 1 {
}
if path != "" && !strings.HasSuffix(path, "/") {
path = path + "/"
}
ip := net.ParseIP(addr)
if ip != nil {
listenAddr = ip.String() + ":" + strconv.Itoa(port)
} else {
if govalidator.IsDNSName(addr) {
listenAddr = addr + ":" + strconv.Itoa(port)
} else {
log.Fatalln("Invalid ip address")
}
}
listenAddr := addr + ":" + port
if !govalidator.IsDNSName(domain) {
log.Fatalln("Invalid domain address")
}
r := mux.NewRouter()