added some client options

pkg/api/client/client.go

@@ -12,6 +12,7 @@ import (
 	"net/http"
 	"net/http/httputil"
 	"net/url"
+	neturl "net/url"
 	"os"
 	"strings"
 	"time"
@@ -76,7 +77,9 @@ func WithHTTPClient(httpClient *http.Client) ClientOption {
 
 var (
 	ErrMissingEndpointEnv   = errors.New("missing environment variable KEYCTL_ENDPOINT")
-
+	ErrMissingEndpointInURL = errors.New("missing host in URL")
+	ErrMissingIDInURL       = errors.New("missing ID in URL")
+	ErrUnsupportedScheme    = errors.New("unsupported scheme")
 	ErrMissingEndpoint      = errors.New("missing Endpoint in config")
 )
 
@@ -112,6 +115,52 @@ func ClientOptionsFromEnv() (options []ClientOption, err error) {
 	return
 }
 
+func ClientOptionsFromURL(url string) (options []ClientOption, err error) {
+	u, err := neturl.Parse(url)
+	if err != nil {
+		return nil, err
+	}
+	if u.Scheme != "keyctl" {
+		return nil, fmt.Errorf("%w: %s", ErrUnsupportedScheme, u.Scheme)
+	}
+	if u.Host == "" {
+		err = ErrMissingEndpointInURL
+		return
+	}
+	//insecure, _ := strconv.ParseBool(os.Getenv("HAPROXY_LB_INSECURE"))
+	var endpoint string
+	if u.Query().Get("tls") == "true" {
+		endpoint = "https://" + u.Host
+	} else {
+		endpoint = "http://" + u.Host
+	}
+
+	options = []ClientOption{
+		WithEndpoint(endpoint),
+		//WithInsecureClient(insecure),
+	}
+	return
+}
+
+func KeyFromURL(url string) (id, share string, err error) {
+	u, err := neturl.Parse(url)
+	if err != nil {
+		return
+	}
+	if u.Scheme != "keyctl" {
+		err = fmt.Errorf("%w: %s", ErrUnsupportedScheme, u.Scheme)
+		return
+	}
+	q := u.Query()
+	id = q.Get("id")
+	if id == "" {
+		err = ErrMissingIDInURL
+		return
+	}
+	share = q.Get("share")
+	return
+}
+
 func NewClient(options ...ClientOption) *Client {
 	client := &Client{}