75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
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package xmpp
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import (
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"crypto/tls"
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"net"
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"time"
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)
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type Transport interface {
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Connect(address string, c Config) error
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DoesStartTLS() bool
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StartTLS(domain string, c Config) error
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Read(p []byte) (n int, err error)
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Write(p []byte) (n int, err error)
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Close() error
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}
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// XMPPTransport implements the XMPP native TCP transport
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type XMPPTransport struct {
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TLSConfig *tls.Config
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// TCP level connection / can be replaced by a TLS session after starttls
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conn net.Conn
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}
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func (t *XMPPTransport) Connect(address string, c Config) error {
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var err error
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t.conn, err = net.DialTimeout("tcp", address, time.Duration(c.ConnectTimeout)*time.Second)
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return err
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}
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func (t XMPPTransport) DoesStartTLS() bool {
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return true
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}
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func (t *XMPPTransport) StartTLS(domain string, c Config) error {
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if t.TLSConfig == nil {
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if c.TLSConfig != nil {
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t.TLSConfig = c.TLSConfig
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} else {
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t.TLSConfig = &tls.Config{}
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}
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}
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if t.TLSConfig.ServerName == "" {
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t.TLSConfig.ServerName = domain
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}
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tlsConn := tls.Client(t.conn, t.TLSConfig)
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// We convert existing connection to TLS
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if err := tlsConn.Handshake(); err != nil {
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return err
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}
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if !t.TLSConfig.InsecureSkipVerify {
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if err := tlsConn.VerifyHostname(domain); err != nil {
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return err
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}
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}
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return nil
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}
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func (t XMPPTransport) Read(p []byte) (n int, err error) {
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return t.conn.Read(p)
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}
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func (t XMPPTransport) Write(p []byte) (n int, err error) {
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return t.conn.Write(p)
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}
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func (t XMPPTransport) Close() error {
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return t.conn.Close()
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}
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