91 lines
3.0 KiB
Go
91 lines
3.0 KiB
Go
/*
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Copyright 2021 The Dapr Authors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package kafka
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import (
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"crypto/tls"
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"crypto/x509"
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"errors"
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"fmt"
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"github.com/IBM/sarama"
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)
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func updatePasswordAuthInfo(config *sarama.Config, metadata *KafkaMetadata, saslUsername, saslPassword string) {
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config.Net.SASL.Enable = true
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config.Net.SASL.User = saslUsername
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config.Net.SASL.Password = saslPassword
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if metadata.SaslMechanism == "SHA-256" {
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config.Net.SASL.SCRAMClientGeneratorFunc = func() sarama.SCRAMClient { return &XDGSCRAMClient{HashGeneratorFcn: SHA256} }
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config.Net.SASL.Mechanism = sarama.SASLTypeSCRAMSHA256
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} else if metadata.SaslMechanism == "SHA-512" {
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config.Net.SASL.SCRAMClientGeneratorFunc = func() sarama.SCRAMClient { return &XDGSCRAMClient{HashGeneratorFcn: SHA512} }
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config.Net.SASL.Mechanism = sarama.SASLTypeSCRAMSHA512
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} else {
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config.Net.SASL.Mechanism = sarama.SASLTypePlaintext
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}
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}
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func updateMTLSAuthInfo(config *sarama.Config, metadata *KafkaMetadata) error {
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if metadata.TLSDisable {
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return fmt.Errorf("kafka: cannot configure mTLS authentication when TLSDisable is 'true'")
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}
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cert, err := tls.X509KeyPair([]byte(metadata.TLSClientCert), []byte(metadata.TLSClientKey))
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if err != nil {
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return fmt.Errorf("unable to load client certificate and key pair. Err: %w", err)
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}
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config.Net.TLS.Config.Certificates = []tls.Certificate{cert}
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return nil
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}
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func updateTLSConfig(config *sarama.Config, metadata *KafkaMetadata) error {
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if metadata.TLSDisable || metadata.AuthType == noAuthType {
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config.Net.TLS.Enable = false
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return nil
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}
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config.Net.TLS.Enable = true
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if !metadata.TLSSkipVerify && metadata.TLSCaCert == "" {
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return nil
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}
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//nolint:gosec
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config.Net.TLS.Config = &tls.Config{InsecureSkipVerify: metadata.TLSSkipVerify, MinVersion: tls.VersionTLS12}
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if metadata.TLSCaCert != "" {
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caCertPool := x509.NewCertPool()
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if ok := caCertPool.AppendCertsFromPEM([]byte(metadata.TLSCaCert)); !ok {
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return errors.New("kafka error: unable to load ca certificate")
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}
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config.Net.TLS.Config.RootCAs = caCertPool
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}
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return nil
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}
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func updateOidcAuthInfo(config *sarama.Config, metadata *KafkaMetadata) error {
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tokenProvider := metadata.getOAuthTokenSource()
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if metadata.TLSCaCert != "" {
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err := tokenProvider.addCa(metadata.TLSCaCert)
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if err != nil {
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return fmt.Errorf("kafka: error setting oauth client trusted CA: %w", err)
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}
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}
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config.Net.SASL.Enable = true
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config.Net.SASL.Mechanism = sarama.SASLTypeOAuth
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config.Net.SASL.TokenProvider = tokenProvider
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return nil
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}
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