forked from vesoft-inc/fbthrift
/
ssl_socket.go
166 lines (148 loc) · 4.49 KB
/
ssl_socket.go
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/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* Licensed 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 SSLSocket 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
// SSLSocket is constructed from a net.Addr.
addr net.Addr
timeout time.Duration
cfg *tls.Config
}
// NewSSLSocket creates a net.Conn-backed Transport, given a host and port and tls Configuration
//
// Example:
// trans, err := thrift.NewSSLSocket("localhost:9090", nil)
func NewSSLSocket(hostPort string, cfg *tls.Config) (*SSLSocket, error) {
return NewSSLSocketTimeout(hostPort, cfg, 0)
}
// NewSSLSocketTimeout creates a net.Conn-backed Transport, given a host and port
// it also accepts a tls Configuration and a timeout as a time.Duration
func NewSSLSocketTimeout(hostPort string, cfg *tls.Config, timeout time.Duration) (*SSLSocket, error) {
return &SSLSocket{hostPort: hostPort, timeout: timeout, cfg: cfg}, nil
}
// Creates a SSLSocket from a net.Addr
func NewSSLSocketFromAddrTimeout(addr net.Addr, cfg *tls.Config, timeout time.Duration) *SSLSocket {
return &SSLSocket{addr: addr, timeout: timeout, cfg: cfg}
}
// Creates a SSLSocket from an existing net.Conn
func NewSSLSocketFromConnTimeout(conn net.Conn, cfg *tls.Config, timeout time.Duration) *SSLSocket {
return &SSLSocket{conn: conn, addr: conn.RemoteAddr(), timeout: timeout, cfg: cfg}
}
// Sets the socket timeout
func (p *SSLSocket) SetTimeout(timeout time.Duration) error {
p.timeout = timeout
return nil
}
func (p *SSLSocket) 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 *SSLSocket) 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.Dial("tcp", p.hostPort, p.cfg); err != nil {
return NewTransportException(NOT_OPEN, err.Error())
}
} else {
if p.IsOpen() {
return NewTransportException(ALREADY_OPEN, "Socket already connected.")
}
if p.addr == nil {
return NewTransportException(NOT_OPEN, "Cannot open nil address.")
}
if len(p.addr.Network()) == 0 {
return NewTransportException(NOT_OPEN, "Cannot open bad network name.")
}
if len(p.addr.String()) == 0 {
return NewTransportException(NOT_OPEN, "Cannot open bad address.")
}
if p.conn, err = tls.Dial(p.addr.Network(), p.addr.String(), p.cfg); err != nil {
return NewTransportException(NOT_OPEN, err.Error())
}
}
return nil
}
// Retrieve the underlying net.Conn
func (p *SSLSocket) Conn() net.Conn {
return p.conn
}
// Returns true if the connection is open
func (p *SSLSocket) IsOpen() bool {
if p.conn == nil {
return false
}
return true
}
// Closes the socket.
func (p *SSLSocket) 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 *SSLSocket) Read(buf []byte) (int, error) {
if !p.IsOpen() {
return 0, NewTransportException(NOT_OPEN, "Connection not open")
}
p.pushDeadline(true, false)
n, err := p.conn.Read(buf)
return n, NewTransportExceptionFromError(err)
}
func (p *SSLSocket) Write(buf []byte) (int, error) {
if !p.IsOpen() {
return 0, NewTransportException(NOT_OPEN, "Connection not open")
}
p.pushDeadline(false, true)
return p.conn.Write(buf)
}
func (p *SSLSocket) Flush() error {
return nil
}
func (p *SSLSocket) Interrupt() error {
if !p.IsOpen() {
return nil
}
return p.conn.Close()
}
func (p *SSLSocket) RemainingBytes() (num_bytes uint64) {
return UnknownRemaining // the truth is, we just don't know unless framed is used
}