28 lines
		
	
	
		
			560 B
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			28 lines
		
	
	
		
			560 B
		
	
	
	
		
			Go
		
	
	
	
| // Copyright 2022 The Gitea Authors. All rights reserved.
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| // Use of this source code is governed by a MIT-style
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| // license that can be found in the LICENSE file.
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| 
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| package oci
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| 
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| import (
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| 	"regexp"
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| 	"strings"
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| )
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| 
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| var digestPattern = regexp.MustCompile(`\Asha256:[a-f0-9]{64}\z`)
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| 
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| type Digest string
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| 
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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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| 
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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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