42 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			42 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Go
		
	
	
	
package utils
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import (
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	"encoding/base64"
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	"github.com/pusher/oauth2_proxy/pkg/apis/sessions"
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	"github.com/pusher/oauth2_proxy/pkg/encryption"
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)
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// CookieForSession serializes a session state for storage in a cookie
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func CookieForSession(s *sessions.SessionState, c *encryption.Cipher) (string, error) {
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	return s.EncodeSessionState(c)
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}
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// SessionFromCookie deserializes a session from a cookie value
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func SessionFromCookie(v string, c *encryption.Cipher) (s *sessions.SessionState, err error) {
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	return sessions.DecodeSessionState(v, c)
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}
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// SecretBytes attempts to base64 decode the secret, if that fails it treats the secret as binary
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func SecretBytes(secret string) []byte {
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	b, err := base64.URLEncoding.DecodeString(addPadding(secret))
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	if err == nil {
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		return []byte(addPadding(string(b)))
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	}
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	return []byte(secret)
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}
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func addPadding(secret string) string {
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	padding := len(secret) % 4
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	switch padding {
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	case 1:
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		return secret + "==="
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	case 2:
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		return secret + "=="
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	case 3:
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		return secret + "="
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	default:
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		return secret
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	}
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}
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