Initial commit

application/network/dial_socks5.go

@@ -0,0 +1,54 @@
+// Sshwifty - A Web SSH client
+//
+// Copyright (C) 2019 Rui NI <nirui@gmx.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package network
+
+import (
+	"net"
+	"time"
+
+	"golang.org/x/net/proxy"
+)
+
+// BuildSocks5Dial builds a Socks5 dialer
+func BuildSocks5Dial(
+	socks5Address string, userName string, password string) (Dial, error) {
+	var auth *proxy.Auth
+
+	if len(userName) > 0 || len(password) > 0 {
+		auth = &proxy.Auth{
+			User:     userName,
+			Password: password,
+		}
+	}
+
+	return func(
+		network string,
+		address string,
+		timeout time.Duration,
+	) (net.Conn, error) {
+		dial, dialErr := proxy.SOCKS5("tcp", socks5Address, auth, &net.Dialer{
+			Timeout: timeout,
+		})
+
+		if dialErr != nil {
+			return nil, dialErr
+		}
+
+		return dial.Dial(network, address)
+	}, nil
+}