feat: support overwrite node name using tag

component/outbound/dialer/register.go

@@ -8,6 +8,7 @@ package dialer
 import (
 	"fmt"
 	"net/url"
+	"strings"
 )
 
 type FromLinkCreator func(gOption *GlobalOption, iOption InstanceOption, link string) (dialer *Dialer, err error)
@@ -19,12 +20,35 @@ func FromLinkRegister(name string, creator FromLinkCreator) {
 }
 
 func NewFromLink(gOption *GlobalOption, iOption InstanceOption, link string) (dialer *Dialer, err error) {
+	/// Get overwritten name.
+	var overwrittenName string
+	iColon := strings.Index(link, ":")
+	if iColon == -1 {
+		goto parseUrl
+	}
+	// If first colon is like "://" in "scheme://linkbody", no tag is present.
+	if strings.HasPrefix(link[iColon:], "://") {
+		goto parseUrl
+	}
+	// Else tag is the part before colon.
+	overwrittenName = link[:iColon]
+	link = link[iColon+1:]
+
+parseUrl:
 	u, err := url.Parse(link)
 	if err != nil {
 		return nil, err
 	}
 	if creator, ok := fromLinkCreators[u.Scheme]; ok {
-		return creator(gOption, iOption, link)
+		node, err := creator(gOption, iOption, link)
+		if err != nil {
+			return nil, err
+		}
+		// Overwrite node name using user given tag.
+		if overwrittenName != "" {
+			node.name = overwrittenName
+		}
+		return node, err
 	} else {
 		return nil, fmt.Errorf("unexpected link type: %v", u.Scheme)
 	}