mirror of
https://github.com/alibaba/higress.git
synced 2026-02-24 20:50:51 +08:00
118 lines
3.4 KiB
Go
118 lines
3.4 KiB
Go
// Copyright (c) 2022 Alibaba Group Holding Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package annotations
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import (
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"strings"
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networking "istio.io/api/networking/v1alpha3"
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"istio.io/istio/pilot/pkg/credentials/kube"
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"istio.io/istio/pilot/pkg/model"
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gatewaytool "istio.io/istio/pkg/config/gateway"
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"istio.io/istio/pkg/config/security"
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"github.com/alibaba/higress/pkg/ingress/kube/util"
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. "github.com/alibaba/higress/pkg/ingress/log"
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)
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const (
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authTLSSecret = "auth-tls-secret"
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sslCipher = "ssl-cipher"
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)
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var (
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_ Parser = &downstreamTLS{}
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_ GatewayHandler = &downstreamTLS{}
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)
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type DownstreamTLSConfig struct {
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CipherSuites []string
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Mode networking.ServerTLSSettings_TLSmode
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CASecretName model.NamespacedName
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}
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type downstreamTLS struct{}
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func (d downstreamTLS) Parse(annotations Annotations, config *Ingress, _ *GlobalContext) error {
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if !needDownstreamTLS(annotations) {
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return nil
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}
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downstreamTLSConfig := &DownstreamTLSConfig{
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Mode: networking.ServerTLSSettings_SIMPLE,
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}
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defer func() {
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config.DownstreamTLS = downstreamTLSConfig
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}()
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if secretName, err := annotations.ParseStringASAP(authTLSSecret); err == nil {
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namespacedName := util.SplitNamespacedName(secretName)
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if namespacedName.Name == "" {
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IngressLog.Errorf("CA secret name %s format is invalid.", secretName)
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} else {
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if namespacedName.Namespace == "" {
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namespacedName.Namespace = config.Namespace
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}
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downstreamTLSConfig.CASecretName = namespacedName
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downstreamTLSConfig.Mode = networking.ServerTLSSettings_MUTUAL
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}
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}
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if rawTlsCipherSuite, err := annotations.ParseStringASAP(sslCipher); err == nil {
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var validCipherSuite []string
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cipherList := strings.Split(rawTlsCipherSuite, ":")
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for _, cipher := range cipherList {
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if security.IsValidCipherSuite(cipher) {
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validCipherSuite = append(validCipherSuite, cipher)
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}
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}
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downstreamTLSConfig.CipherSuites = validCipherSuite
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}
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return nil
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}
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func (d downstreamTLS) ApplyGateway(gateway *networking.Gateway, config *Ingress) {
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if config.DownstreamTLS == nil {
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return
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}
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downstreamTLSConfig := config.DownstreamTLS
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for _, server := range gateway.Servers {
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if gatewaytool.IsTLSServer(server) {
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if downstreamTLSConfig.CASecretName.Name != "" {
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serverCert := extraSecret(server.Tls.CredentialName)
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if downstreamTLSConfig.CASecretName.Namespace != serverCert.Namespace ||
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(downstreamTLSConfig.CASecretName.Name != serverCert.Name &&
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downstreamTLSConfig.CASecretName.Name != serverCert.Name+kube.GatewaySdsCaSuffix) {
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IngressLog.Errorf("CA secret %s is invalid", downstreamTLSConfig.CASecretName.String())
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} else {
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server.Tls.Mode = downstreamTLSConfig.Mode
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}
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}
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if len(downstreamTLSConfig.CipherSuites) != 0 {
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server.Tls.CipherSuites = downstreamTLSConfig.CipherSuites
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}
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}
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}
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}
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func needDownstreamTLS(annotations Annotations) bool {
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return annotations.HasASAP(sslCipher) ||
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annotations.HasASAP(authTLSSecret)
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}
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