func (conn *ForwardConnection) initForwardConn(proxyAddr string, isHttps bool) error {
if !strings.Contains(proxyAddr, ":") {
proxyAddr = proxyAddr + ":80"
}
if nil != conn.forward_conn && conn.proxyAddr == proxyAddr {
if !util.IsDeadConnection(conn.forward_conn) {
return nil
}
}
conn.Close()
var err error
conn.conn_url, err = url.Parse(conn.manager.target)
if nil != err {
return err
}
addr := conn.conn_url.Host
lookup_trusted_dns := false
if !conn.manager.overProxy {
if isHttps || (conn.manager.inject_crlf) {
lookup_trusted_dns = true
}
}
if conn.use_sys_dns {
lookup_trusted_dns = false
}
isSocks := strings.HasPrefix(strings.ToLower(conn.conn_url.Scheme), "socks")
if !isSocks {
conn.forward_conn, err = conn.dialRemote(addr, lookup_trusted_dns)
} else {
proxy := &socks.Proxy{Addr: conn.conn_url.Host}
if nil != conn.conn_url.User {
proxy.Username = conn.conn_url.User.Username()
proxy.Password, _ = conn.conn_url.User.Password()
}
conn.forward_conn, err = proxy.Dial("tcp", proxyAddr)
}
if nil != err {
log.Printf("Failed to dial address:%s for reason:%s\n", addr, err.Error())
conn.Close()
return err
} else {
conn.proxyAddr = proxyAddr
}
if nil == conn.forwardChan {
conn.forwardChan = make(chan int, 2)
}
conn.buf_forward_conn = bufio.NewReader(conn.forward_conn)
conn.closed = false
return nil
}
func (conn *ForwardConnection) IsClosed() bool {
if nil != conn.forward_conn && !conn.closed {
return util.IsDeadConnection(conn.forward_conn)
}
return true
}