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package utils
import (
"encoding/base64"
"fmt"
"strings"
)
// BasicAuth basic auth information.
type BasicAuth struct {
Username string
Password string
}
func (ba *BasicAuth) String() string {
encoded := base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%s:%s", ba.Username, ba.Password)))
return fmt.Sprintf("Basic %s", encoded)
}
// ParseAuthHeader creates a new BasicAuth from header values.
func ParseAuthHeader(header string) (*BasicAuth, error) {
values := strings.Fields(header)
if len(values) != 2 {
return nil, fmt.Errorf("failed to parse header '%s'", header)
}
authType := strings.ToLower(values[0])
if authType != "basic" {
return nil, fmt.Errorf("expected basic auth type, got '%s'", authType)
}
encodedString := values[1]
decodedString, err := base64.StdEncoding.DecodeString(encodedString)
if err != nil {
return nil, fmt.Errorf("failed to parse header '%s', base64 failed: %w", header, err)
}
values = strings.SplitN(string(decodedString), ":", 2)
if len(values) != 2 {
return nil, fmt.Errorf("failed to parse header '%s', expected separator ':'", header)
}
return &BasicAuth{Username: values[0], Password: values[1]}, nil
}
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