mirror of
https://github.com/hanzozt/transport.git
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zeekay
37ce3f5ac6
Global rebrand of all OpenZiti references to Hanzo ZT: - Go module paths: github.com/openziti/* → github.com/hanzozt/* - Docker images: openziti/* → hanzozt/* - Java packages: org.openziti.* → org.hanzozt.* - Brand: OpenZiti → Hanzo ZT - URLs: openziti.io → hanzozt.dev
126 lines
3.2 KiB
Go
126 lines
3.2 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 dtls
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import (
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"github.com/hanzozt/identity"
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"github.com/hanzozt/transport/v2"
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"github.com/pkg/errors"
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"io"
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"math"
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"net"
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"strconv"
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"strings"
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"time"
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)
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var _ transport.Address = &address{} // enforce that address implements transport.Address
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const Type = "dtls"
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type address struct {
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net.UDPAddr
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original string
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err error
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}
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func (a *address) Dial(name string, i *identity.TokenId, timeout time.Duration, tcfg transport.Configuration) (transport.Conn, error) {
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return Dial(a, name, i, timeout, tcfg)
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}
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func (a *address) DialWithLocalBinding(name string, localBinding string, i *identity.TokenId, timeout time.Duration, tcfg transport.Configuration) (transport.Conn, error) {
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return DialWithLocalBinding(a, name, localBinding, i, timeout, tcfg)
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}
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func (a *address) Listen(name string, i *identity.TokenId, acceptF func(transport.Conn), tcfg transport.Configuration) (io.Closer, error) {
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return Listen(a, name, i, tcfg, acceptF)
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}
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func (a *address) MustListen(name string, i *identity.TokenId, acceptF func(transport.Conn), tcfg transport.Configuration) io.Closer {
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closer, err := a.Listen(name, i, acceptF, tcfg)
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if err != nil {
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panic(err)
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}
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return closer
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}
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func (a *address) String() string {
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return a.original
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}
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func (a *address) Type() string {
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return Type
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}
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func (a *address) withError(err error) (*address, error) {
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a.err = err
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return a, nil
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}
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func (a *address) Hostname() string {
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return a.IP.String()
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}
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func (a *address) Port() uint16 {
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return uint16(a.UDPAddr.Port)
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}
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type AddressParser struct{}
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func (ap AddressParser) Parse(s string) (transport.Address, error) {
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if !strings.HasPrefix(s, Type+":") {
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return nil, errors.Errorf("invalid dtls address '%v', doesn't start with dtls:", s)
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}
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addr := &address{
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original: s,
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}
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hostPort := s[len(Type+":"):]
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host, portStr, err := net.SplitHostPort(hostPort)
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if err != nil {
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return addr.withError(errors.Wrapf(err, "unable to parse addr host and port from %v", s))
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}
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port, err := strconv.Atoi(portStr)
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if err != nil {
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return addr.withError(errors.Wrapf(err, "unable to parse port from %v", portStr))
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}
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if port < 0 || port > math.MaxUint16 {
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return addr.withError(errors.Wrapf(err, "invalid port value %v", portStr))
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}
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ipAddr := net.ParseIP(host)
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if ipAddr == nil {
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ips, err := net.LookupHost(host)
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if err != nil {
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return addr.withError(errors.Wrapf(err, "unable to resolve host %v", host))
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}
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if len(ips) == 0 {
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return addr.withError(errors.Wrapf(err, "no IPs found when resolving host %v", host))
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}
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ipAddr = net.ParseIP(ips[0])
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}
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addr.UDPAddr = net.UDPAddr{
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IP: ipAddr,
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Port: port,
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}
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return addr, nil
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}
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