144 lines
3.1 KiB
Go
144 lines
3.1 KiB
Go
/*
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* Copyright 2020 The Dragonfly Authors
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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 dfnet
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import (
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"encoding/json"
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"errors"
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"fmt"
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"gopkg.in/yaml.v3"
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)
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type NetworkType string
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const (
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// TCP represents protocol of tcp.
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TCP NetworkType = "tcp"
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// TCP represents protocol of unix.
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UNIX NetworkType = "unix"
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// TCP represents protocol of vsock.
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VSOCK NetworkType = "vsock"
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)
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// NetAddr is the definition structure of grpc address,
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// refer to https://github.com/grpc/grpc/blob/master/doc/naming.md.
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type NetAddr struct {
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// Type is the type of network.
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Type NetworkType `mapstructure:"type" yaml:"type"`
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// Addr is the address of network.
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Addr string `mapstructure:"addr" yaml:"addr"`
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}
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// String returns the endpoint of network address.
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func (n *NetAddr) String() string {
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switch n.Type {
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case UNIX:
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return fmt.Sprintf("unix://%s", n.Addr)
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case VSOCK:
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return fmt.Sprintf("vsock://%s", n.Addr)
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default:
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return fmt.Sprintf("dns:///%s", n.Addr)
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}
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}
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// UnmarshalJSON parses the JSON-encoded data and stores the result in NetAddr.
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func (n *NetAddr) UnmarshalJSON(b []byte) error {
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var v any
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if err := json.Unmarshal(b, &v); err != nil {
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return err
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}
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switch value := v.(type) {
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case string:
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n.Type = TCP
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n.Addr = value
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return nil
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case map[string]any:
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if err := n.unmarshal(json.Unmarshal, b); err != nil {
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return err
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}
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return nil
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default:
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return errors.New("invalid net addr")
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}
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}
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// UnmarshalYAML parses the YAML-encoded data and stores the result in NetAddr.
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func (n *NetAddr) UnmarshalYAML(node *yaml.Node) error {
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switch node.Kind {
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case yaml.ScalarNode:
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var addr string
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if err := node.Decode(&addr); err != nil {
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return err
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}
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n.Type = TCP
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n.Addr = addr
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return nil
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case yaml.MappingNode:
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var m = make(map[string]any)
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for i := 0; i < len(node.Content); i += 2 {
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var (
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key string
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value any
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)
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if err := node.Content[i].Decode(&key); err != nil {
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return err
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}
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if err := node.Content[i+1].Decode(&value); err != nil {
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return err
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}
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m[key] = value
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}
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b, err := yaml.Marshal(m)
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if err != nil {
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return err
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}
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if err := n.unmarshal(yaml.Unmarshal, b); err != nil {
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return err
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}
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return nil
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default:
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return errors.New("invalid net addr")
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}
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}
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// unmarshal parses the encoded data and stores the result.
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func (n *NetAddr) unmarshal(unmarshal func(in []byte, out any) (err error), b []byte) error {
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netAddr := struct {
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Type NetworkType `json:"type" yaml:"type"`
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Addr string `json:"addr" yaml:"addr"`
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}{}
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if err := unmarshal(b, &netAddr); err != nil {
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return err
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}
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n.Type = netAddr.Type
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n.Addr = netAddr.Addr
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return nil
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}
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