154 lines
3.4 KiB
Go
154 lines
3.4 KiB
Go
/*
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Copyright NetFoundry Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package channel
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import (
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"crypto/x509"
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"fmt"
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"github.com/openziti/transport/v2"
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"github.com/pkg/errors"
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"net"
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"sync/atomic"
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"time"
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)
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type classicImpl struct {
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peer transport.Conn
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id string
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connectionId string
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headers map[int32][]byte
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closed atomic.Bool
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readF readFunction
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marshalF marshalFunction
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}
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func (impl *classicImpl) GetLocalAddr() net.Addr {
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return impl.peer.LocalAddr()
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}
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func (impl *classicImpl) GetRemoteAddr() net.Addr {
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return impl.peer.RemoteAddr()
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}
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func (impl *classicImpl) SetWriteTimeout(duration time.Duration) error {
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return impl.peer.SetWriteDeadline(time.Now().Add(duration))
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}
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func (impl *classicImpl) SetWriteDeadline(deadline time.Time) error {
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return impl.peer.SetWriteDeadline(deadline)
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}
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func (impl *classicImpl) rxHello() (*Message, error) {
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msg, readF, marshallF, err := readHello(impl.peer)
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impl.readF = readF
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impl.marshalF = marshallF
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return msg, err
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}
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func (impl *classicImpl) Rx() (*Message, error) {
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if impl.closed.Load() {
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return nil, errors.New("underlay closed")
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}
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return impl.readF(impl.peer)
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}
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func (impl *classicImpl) Tx(m *Message) error {
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if impl.closed.Load() {
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return errors.New("underlay closed")
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}
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data, err := impl.marshalF(m)
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if err != nil {
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return err
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}
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_, err = impl.peer.Write(data)
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if err != nil {
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return err
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}
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return nil
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}
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func (impl *classicImpl) Id() string {
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return impl.id
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}
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func (impl *classicImpl) Headers() map[int32][]byte {
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return impl.headers
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}
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func (impl *classicImpl) LogicalName() string {
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return "classic"
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}
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func (impl *classicImpl) ConnectionId() string {
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return impl.connectionId
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}
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func (impl *classicImpl) Certificates() []*x509.Certificate {
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return impl.peer.PeerCertificates()
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}
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func (impl *classicImpl) Label() string {
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return fmt.Sprintf("u{%s}->i{%s/%s}", impl.LogicalName(), impl.id, impl.ConnectionId())
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}
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func (impl *classicImpl) Close() error {
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if impl.closed.CompareAndSwap(false, true) {
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return impl.peer.Close()
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}
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return nil
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}
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func (impl *classicImpl) IsClosed() bool {
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return impl.closed.Load()
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}
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func (impl *classicImpl) init(id string, connectionId string, headers Headers) {
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impl.id = id
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impl.connectionId = connectionId
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impl.headers = headers
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}
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func (impl *classicImpl) getPeer() transport.Conn {
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return impl.peer
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}
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func newClassicImpl(messageStrategy MessageStrategy, peer transport.Conn, version uint32) classicUnderlay {
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readF := ReadV2
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marshalF := MarshalV2
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if version == 3 { // currently only used for testing fallback to a common protocol version
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marshalF = marshalV3
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}
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if messageStrategy != nil && messageStrategy.GetStreamProducer() != nil {
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readF = messageStrategy.GetStreamProducer()
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}
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if messageStrategy != nil && messageStrategy.GetMarshaller() != nil {
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marshalF = messageStrategy.GetMarshaller()
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}
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return &classicImpl{
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peer: peer,
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readF: readF,
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marshalF: marshalF,
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}
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}
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