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	* [feature] add TOTP two-factor authentication (2FA) * use byteutil.S2B to avoid allocations when comparing + generating password hashes * don't bother with string conversion for consts * use io.ReadFull * use MustGenerateSecret for backup codes * rename util functions
		
			
				
	
	
		
			35 lines
		
	
	
	
		
			800 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			35 lines
		
	
	
	
		
			800 B
		
	
	
	
		
			Go
		
	
	
	
	
	
package internal
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import (
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	"net/url"
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	"sort"
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	"strings"
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)
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// EncodeQuery is a copy-paste of url.Values.Encode, except it uses %20 instead
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// of + to encode spaces. This is necessary to correctly render spaces in some
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// authenticator apps, like Google Authenticator.
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func EncodeQuery(v url.Values) string {
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	if v == nil {
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		return ""
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	}
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	var buf strings.Builder
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	keys := make([]string, 0, len(v))
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	for k := range v {
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		keys = append(keys, k)
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	}
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	sort.Strings(keys)
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	for _, k := range keys {
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		vs := v[k]
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		keyEscaped := url.PathEscape(k) // changed from url.QueryEscape
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		for _, v := range vs {
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			if buf.Len() > 0 {
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				buf.WriteByte('&')
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			}
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			buf.WriteString(keyEscaped)
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			buf.WriteByte('=')
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			buf.WriteString(url.PathEscape(v)) // changed from url.QueryEscape
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		}
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	}
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	return buf.String()
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}
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