ginuerzh
ed93d60004
- Use client address network instead of listener network in admission wrapper - Return true (allow) when gRPC admission plugin client is nil to fail-open - Add Close() to httpPlugin to close idle HTTP connections - Close httpLoader in localAdmission.Close() - Remove dead commented-out code in periodReload
75 lines
1.4 KiB
Go
75 lines
1.4 KiB
Go
package admission
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import (
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"context"
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"io"
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"github.com/go-gost/core/admission"
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"github.com/go-gost/core/logger"
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"github.com/go-gost/plugin/admission/proto"
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"github.com/go-gost/x/internal/plugin"
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"google.golang.org/grpc"
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)
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type grpcPlugin struct {
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conn grpc.ClientConnInterface
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client proto.AdmissionClient
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log logger.Logger
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}
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// NewGRPCPlugin creates an Admission plugin based on gRPC.
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func NewGRPCPlugin(name string, addr string, opts ...plugin.Option) admission.Admission {
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var options plugin.Options
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for _, opt := range opts {
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opt(&options)
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}
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log := logger.Default().WithFields(map[string]any{
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"kind": "admission",
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"admission": name,
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})
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conn, err := plugin.NewGRPCConn(addr, &options)
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if err != nil {
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log.Error(err)
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}
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p := &grpcPlugin{
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conn: conn,
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log: log,
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}
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if conn != nil {
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p.client = proto.NewAdmissionClient(conn)
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}
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return p
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}
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func (p *grpcPlugin) Admit(ctx context.Context, network, addr string, opts ...admission.Option) bool {
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if p.client == nil {
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return true
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}
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var options admission.Options
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for _, opt := range opts {
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opt(&options)
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}
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r, err := p.client.Admit(ctx,
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&proto.AdmissionRequest{
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Service: options.Service,
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Network: network,
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Addr: addr,
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})
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if err != nil {
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p.log.Error(err)
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return false
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}
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return r.Ok
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}
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func (p *grpcPlugin) Close() error {
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if closer, ok := p.conn.(io.Closer); ok {
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return closer.Close()
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}
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return nil
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}
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