github.com/openziti/transport@v0.1.5/tcp/address.go (about)

     1  /*
     2  	Copyright NetFoundry, Inc.
     3  
     4  	Licensed under the Apache License, Version 2.0 (the "License");
     5  	you may not use this file except in compliance with the License.
     6  	You may obtain a copy of the License at
     7  
     8  	https://www.apache.org/licenses/LICENSE-2.0
     9  
    10  	Unless required by applicable law or agreed to in writing, software
    11  	distributed under the License is distributed on an "AS IS" BASIS,
    12  	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  	See the License for the specific language governing permissions and
    14  	limitations under the License.
    15  */
    16  
    17  package tcp
    18  
    19  import (
    20  	"errors"
    21  	"fmt"
    22  	"github.com/openziti/foundation/identity/identity"
    23  	"github.com/openziti/transport"
    24  	"io"
    25  	"strconv"
    26  	"strings"
    27  	"time"
    28  )
    29  
    30  var _ transport.Address = (*address)(nil) // enforce that address implements transport.Address
    31  
    32  type address struct {
    33  	hostname string
    34  	port     uint16
    35  }
    36  
    37  func (a address) Dial(name string, i *identity.TokenId, timeout time.Duration, _ transport.Configuration) (transport.Connection, error) {
    38  	return Dial(a.bindableAddress(), name, timeout)
    39  }
    40  
    41  func (a address) DialWithLocalBinding(name string, localBinding string, i *identity.TokenId, timeout time.Duration, tcfg transport.Configuration) (transport.Connection, error) {
    42  	return DialWithLocalBinding(a.bindableAddress(), name, localBinding, timeout)
    43  }
    44  
    45  func (a address) Listen(name string, i *identity.TokenId, incoming chan transport.Connection, _ transport.Configuration) (io.Closer, error) {
    46  	return Listen(a.bindableAddress(), name, incoming)
    47  }
    48  
    49  func (a address) MustListen(name string, i *identity.TokenId, incoming chan transport.Connection, tcfg transport.Configuration) io.Closer {
    50  	closer, err := a.Listen(name, i, incoming, tcfg)
    51  	if err != nil {
    52  		panic(err)
    53  	}
    54  	return closer
    55  }
    56  
    57  func (a address) String() string {
    58  	return fmt.Sprintf("tcp:%s", a.bindableAddress())
    59  }
    60  
    61  func (a address) bindableAddress() string {
    62  	return fmt.Sprintf("%s:%d", a.hostname, a.port)
    63  }
    64  
    65  func (a address) Type() string {
    66  	return "tcp"
    67  }
    68  
    69  type AddressParser struct{}
    70  
    71  func (ap AddressParser) Parse(s string) (transport.Address, error) {
    72  	tokens := strings.Split(s, ":")
    73  	if len(tokens) < 2 {
    74  		return nil, errors.New("invalid format")
    75  	}
    76  
    77  	if tokens[0] == "tcp" {
    78  		if len(tokens) != 3 {
    79  			return nil, errors.New("invalid format")
    80  		}
    81  
    82  		port, err := strconv.ParseUint(tokens[2], 10, 16)
    83  		if err != nil {
    84  			return nil, err
    85  		}
    86  
    87  		return &address{hostname: tokens[1], port: uint16(port)}, nil
    88  	}
    89  
    90  	return nil, errors.New("invalid format")
    91  }