mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-07-05 13:35:23 +00:00
109 lines
2.5 KiB
Go
109 lines
2.5 KiB
Go
package internet
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import (
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"errors"
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"v2ray.com/core/common"
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"v2ray.com/core/common/alloc"
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"v2ray.com/core/common/loader"
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"github.com/golang/protobuf/proto"
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"github.com/golang/protobuf/ptypes"
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)
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type Authenticator interface {
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Seal(*alloc.Buffer)
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Open(*alloc.Buffer) bool
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Overhead() int
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}
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type AuthenticatorFactory interface {
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Create(interface{}) Authenticator
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}
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func (this *AuthenticatorConfig) GetInternalConfig() (interface{}, error) {
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return configCache.CreateConfig(this.Name)
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}
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func NewAuthenticatorConfig(name string, config interface{}) (*AuthenticatorConfig, error) {
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pbMsg, ok := config.(proto.Message)
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if !ok {
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return nil, errors.New("Internet|Authenticator: Failed to convert config into proto message.")
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}
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anyConfig, err := ptypes.MarshalAny(pbMsg)
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if err != nil {
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return nil, err
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}
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return &AuthenticatorConfig{
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Name: name,
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Settings: anyConfig,
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}, nil
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}
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func (this *AuthenticatorConfig) CreateAuthenticator() (Authenticator, error) {
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config, err := this.GetInternalConfig()
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if err != nil {
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return nil, err
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}
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return CreateAuthenticator(this.Name, config)
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}
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var (
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authenticatorCache = make(map[string]AuthenticatorFactory)
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configCache = loader.ConfigCreatorCache{}
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)
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func RegisterAuthenticator(name string, factory AuthenticatorFactory) error {
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if _, found := authenticatorCache[name]; found {
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return common.ErrDuplicatedName
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}
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authenticatorCache[name] = factory
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return nil
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}
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func RegisterAuthenticatorConfig(name string, configCreator loader.ConfigCreator) error {
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return configCache.RegisterCreator(name, configCreator)
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}
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func CreateAuthenticator(name string, config interface{}) (Authenticator, error) {
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factory, found := authenticatorCache[name]
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if !found {
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return nil, common.ErrObjectNotFound
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}
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return factory.Create(config), nil
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}
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type AuthenticatorChain struct {
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authenticators []Authenticator
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}
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func NewAuthenticatorChain(auths ...Authenticator) Authenticator {
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return &AuthenticatorChain{
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authenticators: auths,
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}
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}
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func (this *AuthenticatorChain) Overhead() int {
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total := 0
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for _, auth := range this.authenticators {
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total += auth.Overhead()
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}
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return total
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}
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func (this *AuthenticatorChain) Open(payload *alloc.Buffer) bool {
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for _, auth := range this.authenticators {
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if !auth.Open(payload) {
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return false
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}
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}
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return true
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}
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func (this *AuthenticatorChain) Seal(payload *alloc.Buffer) {
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for i := len(this.authenticators) - 1; i >= 0; i-- {
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auth := this.authenticators[i]
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auth.Seal(payload)
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}
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}
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