forked from apache/thrift
/
ssl_socket.go
175 lines (157 loc) · 4.89 KB
/
ssl_socket.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package thrift
import (
"crypto/tls"
"net"
"time"
)
type TSSLSocket struct {
conn net.Conn
// hostPort contains host:port (e.g. "asdf.com:12345"). The field is
// only valid if addr is nil.
hostPort string
// addr is nil when hostPort is not "", and is only used when the
// TSSLSocket is constructed from a net.Addr.
addr net.Addr
timeout time.Duration
cfg *tls.Config
}
// NewTSSLSocket creates a net.Conn-backed TTransport, given a host and port and tls Configuration
//
// Example:
// trans, err := thrift.NewTSSLSocket("localhost:9090", nil)
func NewTSSLSocket(hostPort string, cfg *tls.Config) (*TSSLSocket, error) {
return NewTSSLSocketTimeout(hostPort, cfg, 0)
}
// NewTSSLSocketTimeout creates a net.Conn-backed TTransport, given a host and port
// it also accepts a tls Configuration and a timeout as a time.Duration
func NewTSSLSocketTimeout(hostPort string, cfg *tls.Config, timeout time.Duration) (*TSSLSocket, error) {
if cfg.MinVersion == 0 {
cfg.MinVersion = tls.VersionTLS10
}
return &TSSLSocket{hostPort: hostPort, timeout: timeout, cfg: cfg}, nil
}
// Creates a TSSLSocket from a net.Addr
func NewTSSLSocketFromAddrTimeout(addr net.Addr, cfg *tls.Config, timeout time.Duration) *TSSLSocket {
return &TSSLSocket{addr: addr, timeout: timeout, cfg: cfg}
}
// Creates a TSSLSocket from an existing net.Conn
func NewTSSLSocketFromConnTimeout(conn net.Conn, cfg *tls.Config, timeout time.Duration) *TSSLSocket {
return &TSSLSocket{conn: conn, addr: conn.RemoteAddr(), timeout: timeout, cfg: cfg}
}
// Sets the socket timeout
func (p *TSSLSocket) SetTimeout(timeout time.Duration) error {
p.timeout = timeout
return nil
}
func (p *TSSLSocket) pushDeadline(read, write bool) {
var t time.Time
if p.timeout > 0 {
t = time.Now().Add(time.Duration(p.timeout))
}
if read && write {
p.conn.SetDeadline(t)
} else if read {
p.conn.SetReadDeadline(t)
} else if write {
p.conn.SetWriteDeadline(t)
}
}
// Connects the socket, creating a new socket object if necessary.
func (p *TSSLSocket) Open() error {
var err error
// If we have a hostname, we need to pass the hostname to tls.Dial for
// certificate hostname checks.
if p.hostPort != "" {
if p.conn, err = tls.DialWithDialer(&net.Dialer{
Timeout: p.timeout}, "tcp", p.hostPort, p.cfg); err != nil {
return NewTTransportException(NOT_OPEN, err.Error())
}
} else {
if p.IsOpen() {
return NewTTransportException(ALREADY_OPEN, "Socket already connected.")
}
if p.addr == nil {
return NewTTransportException(NOT_OPEN, "Cannot open nil address.")
}
if len(p.addr.Network()) == 0 {
return NewTTransportException(NOT_OPEN, "Cannot open bad network name.")
}
if len(p.addr.String()) == 0 {
return NewTTransportException(NOT_OPEN, "Cannot open bad address.")
}
if p.conn, err = tls.DialWithDialer(&net.Dialer{
Timeout: p.timeout}, p.addr.Network(), p.addr.String(), p.cfg); err != nil {
return NewTTransportException(NOT_OPEN, err.Error())
}
}
return nil
}
// Retrieve the underlying net.Conn
func (p *TSSLSocket) Conn() net.Conn {
return p.conn
}
// Returns true if the connection is open
func (p *TSSLSocket) IsOpen() bool {
if p.conn == nil {
return false
}
return true
}
// Closes the socket.
func (p *TSSLSocket) Close() error {
// Close the socket
if p.conn != nil {
err := p.conn.Close()
if err != nil {
return err
}
p.conn = nil
}
return nil
}
func (p *TSSLSocket) Read(buf []byte) (int, error) {
if !p.IsOpen() {
return 0, NewTTransportException(NOT_OPEN, "Connection not open")
}
p.pushDeadline(true, false)
n, err := p.conn.Read(buf)
return n, NewTTransportExceptionFromError(err)
}
func (p *TSSLSocket) Write(buf []byte) (int, error) {
if !p.IsOpen() {
return 0, NewTTransportException(NOT_OPEN, "Connection not open")
}
p.pushDeadline(false, true)
return p.conn.Write(buf)
}
func (p *TSSLSocket) Flush() error {
return nil
}
func (p *TSSLSocket) Interrupt() error {
if !p.IsOpen() {
return nil
}
return p.conn.Close()
}
func (p *TSSLSocket) RemainingBytes() (num_bytes uint64) {
const maxSize = ^uint64(0)
return maxSize // the thruth is, we just don't know unless framed is used
}