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scram_client.go
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scram_client.go
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// Copyright 2021 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package security
import (
"crypto/sha256"
"crypto/sha512"
"hash"
"github.com/xdg/scram"
)
var (
// SHA256 func
SHA256 scram.HashGeneratorFcn = func() hash.Hash { return sha256.New() }
// SHA512 func
SHA512 scram.HashGeneratorFcn = func() hash.Hash { return sha512.New() }
)
// XDGSCRAMClient xdg scram client
type XDGSCRAMClient struct {
*scram.Client
*scram.ClientConversation
scram.HashGeneratorFcn
}
// Begin xdg scram client Begin
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 xdg scram client Step
func (x *XDGSCRAMClient) Step(challenge string) (response string, err error) {
response, err = x.ClientConversation.Step(challenge)
return
}
// Done xdg scram client Done
func (x *XDGSCRAMClient) Done() bool {
return x.ClientConversation.Done()
}