mirror of
https://github.com/gogrlx/nats-server.git
synced 2026-04-02 03:38:42 -07:00
40 lines
1.1 KiB
Go
40 lines
1.1 KiB
Go
// Copyright 2018 The NATS 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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//
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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 server
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import (
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"encoding/base64"
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)
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// Raw length of the nonce challenge
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const (
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nonceRawLen = 16
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nonceLen = 22 // base64.RawURLEncoding.EncodedLen(nonceRawLen)
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)
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// nonceRequired tells us if we should send a nonce.
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// Assumes server lock is held
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func (s *Server) nonceRequired() bool {
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return len(s.opts.Nkeys) > 0
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}
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// Generate a nonce for INFO challenge.
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// Assumes server lock is held
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func (s *Server) generateNonce(n []byte) {
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var raw [nonceRawLen]byte
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data := raw[:]
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s.prand.Read(data)
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base64.RawURLEncoding.Encode(n, data)
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}
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