27 lines
		
	
	
		
			488 B
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			27 lines
		
	
	
		
			488 B
		
	
	
	
		
			Go
		
	
	
	
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package oci
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import (
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	"regexp"
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	"strings"
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)
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var digestPattern = regexp.MustCompile(`\Asha256:[a-f0-9]{64}\z`)
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type Digest string
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// Validate checks if the digest has a valid SHA256 signature
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func (d Digest) Validate() bool {
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	return digestPattern.MatchString(string(d))
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}
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func (d Digest) Hash() string {
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	p := strings.SplitN(string(d), ":", 2)
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	if len(p) != 2 {
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		return ""
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	}
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	return p[1]
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}
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