otel-collector/internal/kafka/scram_client.go

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0

package kafka // import "github.com/open-telemetry/opentelemetry-collector-contrib/internal/kafka"

import (
	"github.com/IBM/sarama"
	"github.com/xdg-go/scram"
)

var _ sarama.SCRAMClient = (*XDGSCRAMClient)(nil)

// XDGSCRAMClient uses xdg-go scram to authentication conversation
type XDGSCRAMClient struct {
	*scram.Client
	*scram.ClientConversation
	scram.HashGeneratorFcn
}

// Begin starts the XDGSCRAMClient conversation.
func (x *XDGSCRAMClient) Begin(userName, password, authzID string) (err error) {
	x.Client, err = x.HashGeneratorFcn.NewClient(userName, password, authzID)
	if err != nil {
		return err
	}
	x.ClientConversation = x.Client.NewConversation()
	return nil
}

// Step takes a string provided from a server (or just an empty string for the
// very first conversation step) and attempts to move the authentication
// conversation forward.  It returns a string to be sent to the server or an
// error if the server message is invalid.  Calling Step after a conversation
// completes is also an error.
func (x *XDGSCRAMClient) Step(challenge string) (response string, err error) {
	return x.ClientConversation.Step(challenge)

}

// Done returns true if the conversation is completed or has errored.
func (x *XDGSCRAMClient) Done() bool {
	return x.ClientConversation.Done()
}