Adapt to changed cacert-gosigner interface package

- update cacert-gosigner dependency
- add context parameter to fullfil interface contracts

go.mod

@@ -3,7 +3,7 @@ module git.cacert.org/cacert-gosignerclient
 go 1.19
 
 require (
-	git.cacert.org/cacert-gosigner v0.0.0-20221201103407-51afebf2c12f
+	git.cacert.org/cacert-gosigner v0.0.0-20221201203610-19436c06c2cf
 	github.com/balacode/go-delta v0.1.0
 	github.com/shamaton/msgpackgen v0.3.0
 	github.com/sirupsen/logrus v1.9.0

go.sum

@@ -1,7 +1,5 @@
-git.cacert.org/cacert-gosigner v0.0.0-20221130191226-de7e716a8274 h1:lGaIVUyXCtmDZ3ZhCYE44rpbvDF/JMDA/zrPgCZKMvc=
-git.cacert.org/cacert-gosigner v0.0.0-20221130191226-de7e716a8274/go.mod h1:mb8oBdxQ26GI3xT4b8B7hXYWGED9vvjPGxehmbicyc4=
-git.cacert.org/cacert-gosigner v0.0.0-20221201103407-51afebf2c12f h1:OLe/r/dK4WtQXjLCP3Naq/MUkkVkClvw2JIzLxNR2sI=
-git.cacert.org/cacert-gosigner v0.0.0-20221201103407-51afebf2c12f/go.mod h1:mb8oBdxQ26GI3xT4b8B7hXYWGED9vvjPGxehmbicyc4=
+git.cacert.org/cacert-gosigner v0.0.0-20221201203610-19436c06c2cf h1:dV0Y485b/HvtrEVC9Yflla8pVAnMoRvfKZI4pozOftY=
+git.cacert.org/cacert-gosigner v0.0.0-20221201203610-19436c06c2cf/go.mod h1:mb8oBdxQ26GI3xT4b8B7hXYWGED9vvjPGxehmbicyc4=
 github.com/balacode/go-delta v0.1.0 h1:pwz4CMn06P2bIaIfAx3GSabMPwJp/Ww4if+7SgPYa3I=
 github.com/balacode/go-delta v0.1.0/go.mod h1:wLNrwTI3lHbPBvnLzqbHmA7HVVlm1u22XLvhbeA6t3o=
 github.com/balacode/zr v1.0.0 h1:MCupkEoXvrnCljc4KddiDOhR04ZLUAACgtKuo3o+9vc=

internal/client/client.go

@@ -80,17 +80,17 @@ func (c *Client) Run(ctx context.Context) error {
 	framerErrors := make(chan error)
 
 	go func(f protocol.Framer) {
-		framerErrors <- f.ReadFrames(c.port, c.in)
+		framerErrors <- f.ReadFrames(ctx, c.port, c.in)
 	}(c.framer)
 
 	go func(f protocol.Framer) {
-		framerErrors <- f.WriteFrames(c.port, c.out)
+		framerErrors <- f.WriteFrames(ctx, c.port, c.out)
 	}(c.framer)
 
 	go func() {
 		clientProtocol := protocol.NewClient(c.handler, c.commands, c.in, c.out, c.logger)
 
-		protocolErrors <- clientProtocol.Handle()
+		protocolErrors <- clientProtocol.Handle(ctx)
 	}()
 
 	ctx, cancelCommandLoop := context.WithCancel(ctx)

internal/handler/handler.go

@@ -18,6 +18,7 @@ limitations under the License.
 package handler
 
 import (
+	"context"
 	"fmt"
 	"time"
 
@@ -39,7 +40,7 @@ type SignerClientHandler struct {
 	clientCallback chan interface{}
 }
 
-func (s *SignerClientHandler) Send(command *protocol.Command, out chan []byte) error {
+func (s *SignerClientHandler) Send(ctx context.Context, command *protocol.Command, out chan []byte) error {
 	var (
 		frame []byte
 		err   error
@@ -54,7 +55,12 @@ func (s *SignerClientHandler) Send(command *protocol.Command, out chan []byte) e
 
 	s.logger.Trace("writing command announcement")
 
-	out <- frame
+	select {
+	case <-ctx.Done():
+		return nil
+	case out <- frame:
+		break
+	}
 
 	frame, err = msgpack.Marshal(command.Command)
 	if err != nil {
@@ -63,17 +69,22 @@ func (s *SignerClientHandler) Send(command *protocol.Command, out chan []byte) e
 
 	s.logger.WithField("command", command.Command).Debug("write command data")
 
-	out <- frame
-
-	return nil
+	select {
+	case <-ctx.Done():
+		return nil
+	case out <- frame:
+		return nil
+	}
 }
 
-func (s *SignerClientHandler) ResponseAnnounce(in chan []byte) (*protocol.Response, error) {
+func (s *SignerClientHandler) ResponseAnnounce(ctx context.Context, in chan []byte) (*protocol.Response, error) {
 	response := &protocol.Response{}
 
 	var announce messages.ResponseAnnounce
 
 	select {
+	case <-ctx.Done():
+		return nil, nil
 	case frame := <-in:
 		if err := msgpack.Unmarshal(frame, &announce); err != nil {
 			return nil, fmt.Errorf("could not unmarshal response announcement: %w", err)
@@ -89,8 +100,10 @@ func (s *SignerClientHandler) ResponseAnnounce(in chan []byte) (*protocol.Respon
 	}
 }
 
-func (s *SignerClientHandler) ResponseData(in chan []byte, response *protocol.Response) error {
+func (s *SignerClientHandler) ResponseData(ctx context.Context, in chan []byte, response *protocol.Response) error {
 	select {
+	case <-ctx.Done():
+		return nil
 	case frame := <-in:
 		switch response.Announce.Code {
 		case messages.RespHealth:
@@ -124,7 +137,7 @@ func (s *SignerClientHandler) ResponseData(in chan []byte, response *protocol.Re
 	return nil
 }
 
-func (s *SignerClientHandler) HandleResponse(response *protocol.Response) error {
+func (s *SignerClientHandler) HandleResponse(ctx context.Context, response *protocol.Response) error {
 	s.logger.WithField("response", response.Announce).Info("handled response")
 	s.logger.WithField("response", response).Debug("full response")
 
@@ -132,9 +145,9 @@ func (s *SignerClientHandler) HandleResponse(response *protocol.Response) error
 	case *messages.ErrorResponse:
 		s.logger.WithField("message", r.Message).Error("error from signer")
 	case *messages.HealthResponse:
-		s.handleHealthResponse(r)
+		s.handleHealthResponse(ctx, r)
 	case *messages.FetchCRLResponse:
-		s.handleFetchCRLResponse(r)
+		s.handleFetchCRLResponse(ctx, r)
 	default:
 		s.logger.WithField("response", response).Warnf("unhandled response of type %T", response.Response)
 	}
@@ -142,7 +155,7 @@ func (s *SignerClientHandler) HandleResponse(response *protocol.Response) error
 	return nil
 }
 
-func (s *SignerClientHandler) handleHealthResponse(r *messages.HealthResponse) {
+func (s *SignerClientHandler) handleHealthResponse(ctx context.Context, r *messages.HealthResponse) {
 	signerInfo := client.SignerInfo{}
 
 	signerInfo.SignerHealth = r.Healthy
@@ -198,11 +211,21 @@ func (s *SignerClientHandler) handleHealthResponse(r *messages.HealthResponse) {
 		}
 	}
 
-	s.clientCallback <- signerInfo
+	select {
+	case <-ctx.Done():
+		return
+	case s.clientCallback <- signerInfo:
+		break
+	}
 }
 
-func (s *SignerClientHandler) handleFetchCRLResponse(r *messages.FetchCRLResponse) {
-	s.clientCallback <- r
+func (s *SignerClientHandler) handleFetchCRLResponse(ctx context.Context, r *messages.FetchCRLResponse) {
+	select {
+	case <-ctx.Done():
+		return
+	case s.clientCallback <- r:
+		break
+	}
 }
 
 func New(