forked from benthosdev/benthos
/
scram.go
47 lines (37 loc) · 1.39 KB
/
scram.go
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package sasl
import (
"crypto/sha256"
"crypto/sha512"
"github.com/xdg/scram"
)
//------------------------------------------------------------------------------
// SHA256 generates the SHA256 hash
var SHA256 scram.HashGeneratorFcn = sha256.New
// SHA512 generates the SHA512 hash
var SHA512 scram.HashGeneratorFcn = sha512.New
// XDGSCRAMClient represents struct to XDG Scram client to initialize conversation
type XDGSCRAMClient struct {
*scram.Client
*scram.ClientConversation
scram.HashGeneratorFcn
}
// Begin initializes new client and conversation to securely transmit the provided credentials to Kafka
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
func (x *XDGSCRAMClient) Step(challenge string) (response string, err error) {
response, err = x.ClientConversation.Step(challenge)
return
}
// Done returns true if the conversation is completed or has errored.
func (x *XDGSCRAMClient) Done() bool {
return x.ClientConversation.Done()
}
//------------------------------------------------------------------------------