the additional HTTP2 proxies are considered as HTTPS proxies

README.md

@@ -147,7 +147,7 @@ gost的HTTP2支持两种模式并自适应：
 * 作为标准的HTTP2代理，并向下兼容HTTPS代理。
 * 作为transport(类似于wss)，传输其他协议。
 
-**注：gost的代理链仅支持一个HTTP2代理节点，采用就近原则，会将第一个遇到的HTTP2代理节点视为HTTP2代理，其他HTTP2代理节点则被视为HTTP代理。**
+**注：gost的代理链仅支持一个HTTP2代理节点，采用就近原则，会将第一个遇到的HTTP2代理节点视为HTTP2代理，其他HTTP2代理节点则被视为HTTPS代理。**
 
 加密机制
 ------

chain.go

@@ -140,6 +140,9 @@ func (c *ProxyChain) GetConn() (net.Conn, error) {
 				return nil, err
 			}
 			http2Node := c.nodes[c.http2NodeIndex]
+			if http2Node.Transport == "http2" {
+				http2Node.Transport = "h2"
+			}
 			if http2Node.Protocol == "http2" {
 				http2Node.Protocol = "socks5" // assume it as socks5 protocol, so we can do much more things.
 			}

conn.go

@@ -73,14 +73,14 @@ func (c *ProxyConn) handshake() error {
 			return err
 		}
 		c.conn = conn
-	case "tls": // tls connection
+	case "tls", "http2": // tls connection
 		tlsUsed = true
 		cfg := &tls.Config{
 			InsecureSkipVerify: c.Node.insecureSkipVerify(),
 			ServerName:         c.Node.serverName,
 		}
 		c.conn = tls.Client(c.conn, cfg)
-	case "http2":
+	case "h2": // same as http2, but just set a flag for later using.
 		tlsUsed = true
 	default:
 	}

node.go

 package gost
 
 import (
+	"fmt"
 	"net"
 	"net/url"
 	"strconv"
@@ -112,3 +113,7 @@ func (node *ProxyNode) keyFile() string {
 	}
 	return DefaultKeyFile
 }
+
+func (node ProxyNode) String() string {
+	return fmt.Sprintf("transport: %s, protocol: %s, addr: %s", node.Transport, node.Protocol, node.Addr)
+}