fix: ping func

pkg/cache/cache.go

@@ -469,7 +469,8 @@ func (c *Cache) loadOrInit() error {
 		if i > 0 {
 			v.Prev = articles[i-1]
 		}
-		if articles[i+1].ID >= blogapp.General.StartID {
+		if i < len(articles)-1 &&
+			articles[i+1].ID >= blogapp.General.StartID {
 			v.Next = articles[i+1]
 		}
 		c.readdArticle(v, false)

pkg/core/blog/admin/admin.go

@@ -320,7 +320,7 @@ func handleAPIPostCreate(c *gin.Context) {
 		logrus.Error("handleAPIPostCreate.UpdateArticle: ", err)
 		return
 	}
-	if !artc.IsDraft {
+	if !article.IsDraft {
 		cache.Ei.RepArticle(artc, article)
 		// 异步执行，快
 		go func() {

pkg/internal/http.go

@@ -40,7 +40,18 @@ func newRequest(method, rawurl string, data interface{}) (*http.Request, error)
 	// 获取主机IP
 	host, port, err := net.SplitHostPort(u.Host)
 	if err != nil {
-		return nil, err
+		addrErr := err.(*net.AddrError)
+		if addrErr.Err != "missing port in address" {
+			return nil, err
+		}
+		// set default value
+		host = originHost
+		switch u.Scheme {
+		case "http":
+			port = "80"
+		case "https":
+			port = "443"
+		}
 	}
 	ips, err := net.LookupHost(host)
 	if err != nil {