gluetun-qbitt-sidecar/pkg/shared/util.go

package shared

import (
	"fmt"
	"log"
	"strconv"
	"strings"
)

type Server struct {
	proto string // http or https
	host  string // just the domain name, like 'qbit.local.lan' or whatever
	port  int    // port that the web ui listens on
}

func (s Server) Format() string {
	return fmt.Sprintf("%s://%s:%v", s.proto, s.host, s.port)
}

func (s Server) FormatWith(path string) string {
	return fmt.Sprintf("%s%s", s.Format(), path)
}

// strips everything but the port number and hostname from a string
func sanitizeUrl(s string) string {
	protoStripped := strings.ReplaceAll(
		strings.ReplaceAll(
			strings.ReplaceAll(
				s, "https", "",
			), "http", "",
		), "://", "",
	)
	splitHost := strings.Split(protoStripped, "/")
	return splitHost[0]

}

// takes string s and returns the host and port
func splitServerPort(s string) (string, int) {
	splitPort := strings.Split(s, ":")
	if len(splitPort) < 1 {
		// add log here
		log.Fatal("unhandled for now")
	}
	host := splitPort[0]
	port, err := strconv.Atoi(splitPort[1])
	if err != nil {
		log.Fatal("couldnt parse port. unhandled for now.")
	}
	return host, port

}

// strips everything but the port number and hostname from a string
func ParseServer(s string) (Server, error) {
	var proto, host string
	var port int
	if strings.Contains(s, "https") {
		proto = "https"
	} else {
		proto = "http"
	}
	protoStripped := sanitizeUrl(s)
	splitHost := strings.Split(protoStripped, "/")
	host, port = splitServerPort(splitHost[0])
	return Server{proto: proto, host: host, port: port}, nil

}