| 1: | <?php |
| 2: | namespace Worldline\Connect\Sdk\Logging; |
| 3: | |
| 4: | |
| 5: | |
| 6: | |
| 7: | |
| 8: | |
| 9: | class HeaderObfuscator |
| 10: | { |
| 11: | |
| 12: | protected $valueObfuscator; |
| 13: | |
| 14: | |
| 15: | private $customRules = array(); |
| 16: | |
| 17: | public function __construct() |
| 18: | { |
| 19: | $this->valueObfuscator = new ValueObfuscator(); |
| 20: | } |
| 21: | |
| 22: | |
| 23: | |
| 24: | |
| 25: | |
| 26: | public function obfuscateHeaders(array $headers) |
| 27: | { |
| 28: | foreach ($headers as $headerName => &$headerValue) { |
| 29: | $headerValue = $this->obfuscateHeaderValue($headerName, $headerValue); |
| 30: | } |
| 31: | return $headers; |
| 32: | } |
| 33: | |
| 34: | |
| 35: | |
| 36: | |
| 37: | |
| 38: | |
| 39: | protected function obfuscateHeaderValue($key, $value) |
| 40: | { |
| 41: | $lowerKey = mb_strtolower(strval($key), 'UTF-8'); |
| 42: | if (isset($this->customRules[$lowerKey])) { |
| 43: | return $this->replaceHeaderValueWithCustomRule($value, $this->customRules[$lowerKey]); |
| 44: | } |
| 45: | switch ($lowerKey) { |
| 46: | case 'authorization': |
| 47: | case 'www-authenticate': |
| 48: | case 'proxy-authenticate': |
| 49: | case 'proxy-authorization': |
| 50: | case 'x-gcs-authentication-token': |
| 51: | case 'x-gcs-callerpassword': |
| 52: | return $this->replaceHeaderValueWithFixedNumberOfCharacters($value, 8); |
| 53: | default: |
| 54: | return $value; |
| 55: | } |
| 56: | } |
| 57: | |
| 58: | |
| 59: | |
| 60: | |
| 61: | |
| 62: | |
| 63: | protected function replaceHeaderValueWithFixedNumberOfCharacters($value, $numberOfCharacters) |
| 64: | { |
| 65: | if (is_array($value)) { |
| 66: | return array_fill(0, count($value), $this->valueObfuscator->obfuscateFixedLength($numberOfCharacters)); |
| 67: | } else { |
| 68: | return $this->valueObfuscator->obfuscateFixedLength($numberOfCharacters); |
| 69: | } |
| 70: | } |
| 71: | |
| 72: | |
| 73: | |
| 74: | |
| 75: | |
| 76: | |
| 77: | protected function replaceHeaderValueWithCustomRule($value, callable $customRule) |
| 78: | { |
| 79: | if (is_array($value)) { |
| 80: | return array_map(function ($v) use ($customRule) { |
| 81: | return call_user_func($customRule, $v, $this->valueObfuscator); |
| 82: | }, $value); |
| 83: | } else { |
| 84: | return call_user_func($customRule, $value, $this->valueObfuscator); |
| 85: | } |
| 86: | } |
| 87: | |
| 88: | |
| 89: | |
| 90: | |
| 91: | |
| 92: | public function setCustomRule($headerName, callable $customRule) |
| 93: | { |
| 94: | $lowerName = mb_strtolower(strval($headerName), 'UTF-8'); |
| 95: | $this->customRules[$lowerName] = $customRule; |
| 96: | } |
| 97: | } |
| 98: | |