Merge pull request #13 from Raik176/master

Add support for multiple hosts

README.md

@@ -24,7 +24,7 @@ If your server do not have static IP, i.e. When Public IP of your server / route
 
 * Copy the Dynamic DNS password which is generated after enabling Dynamic DNS. Keep it safe and handy.
 
-* Add a record of type `A + Dynamic DNS` with required host name.
+* Add a record of type `A + Dynamic DNS` with required host name(s).
 
 * Install docker on server.
 
@@ -37,7 +37,7 @@ docker run --name server.example.com -d --restart unless-stopped -e NC_HOST='ser
 ```
 
 Here, 
-`NC_HOST` is host name added in Namecheap record.
+`NC_HOST` are the host name(s) added in the Namecheap record, seperated by a comma.
 
 `NC_DOMAIN` is your domain name.
 

logger.go

@@ -12,7 +12,7 @@ const (
 	WarningLog     string = "WARN"
 )
 
-func DDNSLogger(logType, host, domain, message string) {
+func DDNSLogger(logType, hosts, domain, message string) {
 
 	var (
 		StdoutInfoLogger    *log.Logger
@@ -25,12 +25,12 @@ func DDNSLogger(logType, host, domain, message string) {
 	StdoutErrorLogger = log.New(os.Stdout, "ERROR ", log.Ldate|log.Ltime)
 
 	if logType == "INFO" {
-		StdoutInfoLogger.Println(host+"."+domain, message)
+		StdoutInfoLogger.Println(hosts+"."+domain, message)
 	} else if logType == "WARN" {
-		StdoutWarningLogger.Println(host+"."+domain, message)
+		StdoutWarningLogger.Println(hosts+"."+domain, message)
 	} else if logType == "ERROR" {
-		StdoutErrorLogger.Println(host+"."+domain, message)
+		StdoutErrorLogger.Println(hosts+"."+domain, message)
 	} else {
-		fmt.Println(host+"."+domain, message)
+		fmt.Println(hosts+"."+domain, message)
 	}
 }

main.go

@@ -4,18 +4,19 @@ import (
 	"flag"
 	"fmt"
 	"os"
+	"strings"
 )
 
 func main() {
 	fmt.Println("Namecheap Dynamic DNS client Version", version)
 	fmt.Println("Git Repo:", gitrepo)
 
 	domain := flag.String("domain", "", "Domain name e.g. example.com")
-	host := flag.String("host", "", "Subdomain or hostname e.g. www")
+	hosts := flag.String("host", "", "Subdomain or hostname e.g. www")
 	password := flag.String("password", "", "Dynamic DNS Password from Namecheap")
 
 	flag.Parse()
-	if *domain == "" || *host == "" || *password == "" {
+	if *domain == "" || *hosts == "" || *password == "" {
 		fmt.Println("ERROR domain, host and Dynamic DDNS password are mandatory")
 		fmt.Printf("\nUsage of %s:\n", os.Args[1])
 		flag.PrintDefaults()
@@ -24,15 +25,18 @@ func main() {
 
 	pubIp, err := getPubIP()
 	if err != nil {
-		DDNSLogger(ErrorLog, *host, *domain, err.Error())
+		DDNSLogger(ErrorLog, *hosts, *domain, err.Error())
 	} else {
-		if err = setDNSRecord(*host, *domain, *password, pubIp); err != nil {
-			DDNSLogger(ErrorLog, *host, *domain, err.Error())
-			DDNSLogger(WarningLog, *host, *domain, "Ignoring above error. If this is not right, Re-run the process after fixing the error")
-		} else {
-			DDNSLogger(InformationLog, *host, *domain, "Record updated. "+pubIp)
+		DDNSLogger(InformationLog, *hosts, *domain, "Updating all hosts.")
+		for _, host := range strings.Split(*hosts, ",") {
+			if err = setDNSRecord(host, *domain, *password, pubIp); err != nil {
+				DDNSLogger(ErrorLog, *hosts, *domain, err.Error())
+				DDNSLogger(WarningLog, *hosts, *domain, "Above error occured while updating host " + host + ", ignoring. If this is not right, Re-run the process after fixing the error")
+			} else {
+				DDNSLogger(InformationLog, *hosts, *domain, "Record for " + host + " updated. "+pubIp)
+			}
 		}
 	}
 
-	updateRecord(*domain, *host, *password)
+	updateRecord(*domain, *hosts, *password)
 }