62 lines
1.1 KiB
Go
62 lines
1.1 KiB
Go
package registry
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import (
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"context"
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"net"
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"sync"
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"github.com/go-gost/gost/pkg/resolver"
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)
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var (
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resolverReg = &resolverRegistry{}
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)
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func Resolver() *resolverRegistry {
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return resolverReg
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}
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type resolverRegistry struct {
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m sync.Map
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}
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func (r *resolverRegistry) Register(name string, resolver resolver.Resolver) error {
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if _, loaded := r.m.LoadOrStore(name, resolver); loaded {
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return ErrDup
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}
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return nil
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}
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func (r *resolverRegistry) Unregister(name string) {
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r.m.Delete(name)
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}
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func (r *resolverRegistry) IsRegistered(name string) bool {
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_, ok := r.m.Load(name)
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return ok
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}
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func (r *resolverRegistry) Get(name string) resolver.Resolver {
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return &resolverWrapper{name: name}
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}
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func (r *resolverRegistry) get(name string) resolver.Resolver {
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if v, ok := r.m.Load(name); ok {
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return v.(resolver.Resolver)
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}
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return nil
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}
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type resolverWrapper struct {
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name string
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}
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func (w *resolverWrapper) Resolve(ctx context.Context, network, host string) ([]net.IP, error) {
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r := Resolver().get(w.name)
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if r == nil {
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return nil, resolver.ErrInvalid
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}
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return r.Resolve(ctx, network, host)
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}
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