[#1170] morph: Support mTLS

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

go.mod

@@ -127,3 +127,5 @@ require (
 	lukechampine.com/blake3 v1.2.1 // indirect
 	rsc.io/tmplfunc v0.0.3 // indirect
 )
+
+replace github.com/nspcc-dev/neo-go => git.frostfs.info/TrueCloudLab/neoneo-go v0.106.1-0.20240611123832-594f716b3d18

go.sum

@@ -12,6 +12,8 @@ git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20240531132048-ebd8fcd1685f
 git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20240531132048-ebd8fcd1685f/go.mod h1:4AObM67VUqkXQJlODTFThFnuMGEuK8h9DrAXHDZqvCU=
 git.frostfs.info/TrueCloudLab/hrw v1.2.1 h1:ccBRK21rFvY5R1WotI6LNoPlizk7qSvdfD8lNIRudVc=
 git.frostfs.info/TrueCloudLab/hrw v1.2.1/go.mod h1:C1Ygde2n843yTZEQ0FP69jYiuaYV0kriLvP4zm8JuvM=
+git.frostfs.info/TrueCloudLab/neoneo-go v0.106.1-0.20240611123832-594f716b3d18 h1:JRjwcHaQajTbSCBCK3yZnqvyHvgWBaoThDGuT4kvIIc=
+git.frostfs.info/TrueCloudLab/neoneo-go v0.106.1-0.20240611123832-594f716b3d18/go.mod h1:bZyJexBlrja4ngxiBgo8by5pVHuAbhg9l09/8yVGDyg=
 git.frostfs.info/TrueCloudLab/policy-engine v0.0.0-20240513163744-1f6f4163d40d h1:hHk8FWbWgEnwm2I045CaBIrZBjy/o81CehIVOySA/pQ=
 git.frostfs.info/TrueCloudLab/policy-engine v0.0.0-20240513163744-1f6f4163d40d/go.mod h1:SgioiGhQNWqiV5qpFAXRDJF81SEFRBhtwGEiU0FViyA=
 git.frostfs.info/TrueCloudLab/rfc6979 v0.4.0 h1:M2KR3iBj7WpY3hP10IevfIB9MURr4O9mwVfJ+SjT3HA=
@@ -186,8 +188,6 @@ github.com/multiformats/go-varint v0.0.7 h1:sWSGR+f/eu5ABZA2ZpYKBILXTTs9JWpdEM/n
 github.com/multiformats/go-varint v0.0.7/go.mod h1:r8PUYw/fD/SjBCiKOoDlGF6QawOELpZAu9eioSos/OU=
 github.com/nspcc-dev/go-ordered-json v0.0.0-20240301084351-0246b013f8b2 h1:mD9hU3v+zJcnHAVmHnZKt3I++tvn30gBj2rP2PocZMk=
 github.com/nspcc-dev/go-ordered-json v0.0.0-20240301084351-0246b013f8b2/go.mod h1:U5VfmPNM88P4RORFb6KSUVBdJBDhlqggJZYGXGPxOcc=
-github.com/nspcc-dev/neo-go v0.106.0 h1:YiOdW/GcLmbVSvxMRfD5aytO6n3TDHrEA97VHMawy6g=
-github.com/nspcc-dev/neo-go v0.106.0/go.mod h1:9k7vBqqQeePuj4c2CqMN9uPFsfxvwSk9vnQFrkE5eg8=
 github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20240521091047-78685785716d h1:Vcb7YkZuUSSIC+WF/xV3UDfHbAxZgyT2zGleJP3Ig5k=
 github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20240521091047-78685785716d/go.mod h1:/vrbWSHc7YS1KSYhVOyyeucXW/e+1DkVBOgnBEXUCeY=
 github.com/nspcc-dev/rfc6979 v0.2.1 h1:8wWxkamHWFmO790GsewSoKUSJjVnL1fmdRpokU/RgRM=

pkg/morph/client/constructor.go

@@ -141,7 +141,7 @@ func New(ctx context.Context, key *keys.PrivateKey, opts ...Option) (*Client, er
 	} else {
 		var endpoint Endpoint
 		for cli.endpoints.curr, endpoint = range cli.endpoints.list {
-			cli.client, act, err = cli.newCli(ctx, endpoint.Address)
+			cli.client, act, err = cli.newCli(ctx, endpoint)
 			if err != nil {
 				cli.logger.Warn(logs.FrostFSIRCouldntCreateRPCClientForEndpoint,
 					zap.Error(err), zap.String("endpoint", endpoint.Address))
@@ -162,10 +162,15 @@ func New(ctx context.Context, key *keys.PrivateKey, opts ...Option) (*Client, er
 	return cli, nil
 }
 
-func (c *Client) newCli(ctx context.Context, endpoint string) (*rpcclient.WSClient, *actor.Actor, error) {
+func (c *Client) newCli(ctx context.Context, endpoint Endpoint) (*rpcclient.WSClient, *actor.Actor, error) {
-	cli, err := rpcclient.NewWS(ctx, endpoint, rpcclient.WSOptions{
+	cfg, err := endpoint.MTLSConfig.parse()
+	if err != nil {
+		return nil, nil, fmt.Errorf("read mtls certificates: %w", err)
+	}
+	cli, err := rpcclient.NewWS(ctx, endpoint.Address, rpcclient.WSOptions{
 		Options: rpcclient.Options{
 			DialTimeout:     c.cfg.dialTimeout,
+			TLSClientConfig: cfg,
 		},
 	})
 	if err != nil {

pkg/morph/client/mtls.go

@@ -0,0 +1,22 @@
+package client
+
+import (
+	"crypto/tls"
+
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient"
+)
+
+// MTLSConfig represents endpoint mTLS configuration.
+type MTLSConfig struct {
+	TrustedCAList []string
+	KeyFile       string
+	CertFile      string
+}
+
+func (m *MTLSConfig) parse() (*tls.Config, error) {
+	if m == nil {
+		return nil, nil
+	}
+
+	return rpcclient.TLSClientConfig(m.TrustedCAList, m.CertFile, m.KeyFile)
+}

pkg/morph/client/multi.go

@@ -13,6 +13,7 @@ import (
 type Endpoint struct {
 	Address    string
 	Priority   int
+	MTLSConfig *MTLSConfig
 }
 
 type endpoints struct {
@@ -38,11 +39,11 @@ func (c *Client) SwitchRPC(ctx context.Context) bool {
 
 	// Iterate endpoints in the order of decreasing priority.
 	for c.endpoints.curr = range c.endpoints.list {
-		newEndpoint := c.endpoints.list[c.endpoints.curr].Address
+		newEndpoint := c.endpoints.list[c.endpoints.curr]
 		cli, act, err := c.newCli(ctx, newEndpoint)
 		if err != nil {
 			c.logger.Warn(logs.ClientCouldNotEstablishConnectionToTheSwitchedRPCNode,
-				zap.String("endpoint", newEndpoint),
+				zap.String("endpoint", newEndpoint.Address),
 				zap.Error(err),
 			)
 
@@ -52,7 +53,7 @@ func (c *Client) SwitchRPC(ctx context.Context) bool {
 		c.cache.invalidate()
 
 		c.logger.Info(logs.ClientConnectionToTheNewRPCNodeHasBeenEstablished,
-			zap.String("endpoint", newEndpoint))
+			zap.String("endpoint", newEndpoint.Address))
 
 		c.client = cli
 		c.setActor(act)
@@ -119,7 +120,7 @@ mainLoop:
 
 				tryE := e.Address
 
-				cli, act, err := c.newCli(ctx, tryE)
+				cli, act, err := c.newCli(ctx, e)
 				if err != nil {
 					c.logger.Warn(logs.ClientCouldNotCreateClientToTheHigherPriorityNode,
 						zap.String("endpoint", tryE),