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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 827 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | /** |
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| 4 | * XML Formatted EC Key Handler |
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| 5 | * |
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| 6 | * More info: |
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| 7 | * |
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| 8 | * https://www.w3.org/TR/xmldsig-core/#sec-ECKeyValue |
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| 9 | * http://en.wikipedia.org/wiki/XML_Signature |
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| 10 | * |
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| 11 | * PHP version 5 |
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| 12 | * |
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| 874 | daniel-mar | 13 | * @category Crypt |
| 14 | * @package EC |
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| 827 | daniel-mar | 15 | * @author Jim Wigginton <terrafrost@php.net> |
| 16 | * @copyright 2015 Jim Wigginton |
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| 17 | * @license http://www.opensource.org/licenses/mit-license.html MIT License |
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| 18 | * @link http://phpseclib.sourceforge.net |
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| 19 | */ |
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| 20 | |||
| 21 | namespace phpseclib3\Crypt\EC\Formats\Keys; |
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| 22 | |||
| 23 | use ParagonIE\ConstantTime\Base64; |
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| 24 | use phpseclib3\Common\Functions\Strings; |
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| 25 | use phpseclib3\Crypt\EC\BaseCurves\Base as BaseCurve; |
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| 26 | use phpseclib3\Crypt\EC\BaseCurves\Montgomery as MontgomeryCurve; |
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| 27 | use phpseclib3\Crypt\EC\BaseCurves\Prime as PrimeCurve; |
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| 28 | use phpseclib3\Crypt\EC\BaseCurves\TwistedEdwards as TwistedEdwardsCurve; |
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| 29 | use phpseclib3\Exception\BadConfigurationException; |
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| 30 | use phpseclib3\Exception\UnsupportedCurveException; |
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| 31 | use phpseclib3\Math\BigInteger; |
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| 32 | |||
| 33 | /** |
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| 34 | * XML Formatted EC Key Handler |
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| 35 | * |
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| 874 | daniel-mar | 36 | * @package EC |
| 827 | daniel-mar | 37 | * @author Jim Wigginton <terrafrost@php.net> |
| 874 | daniel-mar | 38 | * @access public |
| 827 | daniel-mar | 39 | */ |
| 40 | abstract class XML |
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| 41 | { |
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| 42 | use Common; |
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| 43 | |||
| 44 | /** |
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| 45 | * Default namespace |
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| 46 | * |
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| 47 | * @var string |
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| 48 | */ |
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| 49 | private static $namespace; |
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| 50 | |||
| 51 | /** |
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| 52 | * Flag for using RFC4050 syntax |
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| 53 | * |
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| 54 | * @var bool |
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| 55 | */ |
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| 56 | private static $rfc4050 = false; |
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| 57 | |||
| 58 | /** |
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| 59 | * Break a public or private key down into its constituent components |
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| 60 | * |
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| 874 | daniel-mar | 61 | * @access public |
| 827 | daniel-mar | 62 | * @param string $key |
| 63 | * @param string $password optional |
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| 64 | * @return array |
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| 65 | */ |
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| 66 | public static function load($key, $password = '') |
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| 67 | { |
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| 68 | self::initialize_static_variables(); |
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| 69 | |||
| 70 | if (!Strings::is_stringable($key)) { |
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| 71 | throw new \UnexpectedValueException('Key should be a string - not a ' . gettype($key)); |
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| 72 | } |
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| 73 | |||
| 74 | if (!class_exists('DOMDocument')) { |
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| 75 | throw new BadConfigurationException('The dom extension is not setup correctly on this system'); |
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| 76 | } |
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| 77 | |||
| 78 | $use_errors = libxml_use_internal_errors(true); |
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| 79 | |||
| 80 | $temp = self::isolateNamespace($key, 'http://www.w3.org/2009/xmldsig11#'); |
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| 81 | if ($temp) { |
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| 82 | $key = $temp; |
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| 83 | } |
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| 84 | |||
| 85 | $temp = self::isolateNamespace($key, 'http://www.w3.org/2001/04/xmldsig-more#'); |
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| 86 | if ($temp) { |
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| 87 | $key = $temp; |
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| 88 | } |
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| 89 | |||
| 90 | $dom = new \DOMDocument(); |
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| 91 | if (substr($key, 0, 5) != '<?xml') { |
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| 92 | $key = '<xml>' . $key . '</xml>'; |
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| 93 | } |
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| 94 | |||
| 95 | if (!$dom->loadXML($key)) { |
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| 96 | libxml_use_internal_errors($use_errors); |
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| 97 | throw new \UnexpectedValueException('Key does not appear to contain XML'); |
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| 98 | } |
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| 99 | $xpath = new \DOMXPath($dom); |
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| 100 | libxml_use_internal_errors($use_errors); |
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| 101 | $curve = self::loadCurveByParam($xpath); |
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| 102 | |||
| 103 | $pubkey = self::query($xpath, 'publickey', 'Public Key is not present'); |
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| 104 | |||
| 105 | $QA = self::query($xpath, 'ecdsakeyvalue')->length ? |
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| 106 | self::extractPointRFC4050($xpath, $curve) : |
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| 107 | self::extractPoint("\0" . $pubkey, $curve); |
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| 108 | |||
| 109 | libxml_use_internal_errors($use_errors); |
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| 110 | |||
| 111 | return compact('curve', 'QA'); |
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| 112 | } |
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| 113 | |||
| 114 | /** |
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| 115 | * Case-insensitive xpath query |
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| 116 | * |
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| 117 | * @param \DOMXPath $xpath |
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| 118 | * @param string $name |
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| 119 | * @param string $error optional |
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| 120 | * @param bool $decode optional |
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| 121 | * @return \DOMNodeList |
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| 122 | */ |
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| 123 | private static function query($xpath, $name, $error = null, $decode = true) |
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| 124 | { |
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| 125 | $query = '/'; |
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| 126 | $names = explode('/', $name); |
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| 127 | foreach ($names as $name) { |
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| 128 | $query .= "/*[translate(local-name(), 'ABCDEFGHIJKLMNOPQRSTUVWXYZ','abcdefghijklmnopqrstuvwxyz')='$name']"; |
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| 129 | } |
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| 130 | $result = $xpath->query($query); |
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| 131 | if (!isset($error)) { |
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| 132 | return $result; |
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| 133 | } |
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| 134 | |||
| 135 | if (!$result->length) { |
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| 136 | throw new \RuntimeException($error); |
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| 137 | } |
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| 138 | return $decode ? self::decodeValue($result->item(0)->textContent) : $result->item(0)->textContent; |
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| 139 | } |
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| 140 | |||
| 141 | /** |
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| 142 | * Finds the first element in the relevant namespace, strips the namespacing and returns the XML for that element. |
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| 143 | * |
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| 144 | * @param string $xml |
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| 145 | * @param string $ns |
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| 146 | */ |
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| 147 | private static function isolateNamespace($xml, $ns) |
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| 148 | { |
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| 149 | $dom = new \DOMDocument(); |
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| 150 | if (!$dom->loadXML($xml)) { |
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| 151 | return false; |
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| 152 | } |
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| 153 | $xpath = new \DOMXPath($dom); |
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| 154 | $nodes = $xpath->query("//*[namespace::*[.='$ns'] and not(../namespace::*[.='$ns'])]"); |
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| 155 | if (!$nodes->length) { |
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| 156 | return false; |
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| 157 | } |
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| 158 | $node = $nodes->item(0); |
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| 159 | $ns_name = $node->lookupPrefix($ns); |
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| 160 | if ($ns_name) { |
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| 161 | $node->removeAttributeNS($ns, $ns_name); |
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| 162 | } |
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| 163 | return $dom->saveXML($node); |
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| 164 | } |
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| 165 | |||
| 166 | /** |
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| 167 | * Decodes the value |
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| 168 | * |
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| 169 | * @param string $value |
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| 170 | */ |
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| 171 | private static function decodeValue($value) |
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| 172 | { |
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| 173 | return Base64::decode(str_replace(["\r", "\n", ' ', "\t"], '', $value)); |
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| 174 | } |
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| 175 | |||
| 176 | /** |
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| 177 | * Extract points from an XML document |
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| 178 | * |
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| 179 | * @param \DOMXPath $xpath |
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| 180 | * @param \phpseclib3\Crypt\EC\BaseCurves\Base $curve |
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| 181 | * @return object[] |
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| 182 | */ |
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| 183 | private static function extractPointRFC4050(\DOMXPath $xpath, BaseCurve $curve) |
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| 184 | { |
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| 185 | $x = self::query($xpath, 'publickey/x'); |
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| 186 | $y = self::query($xpath, 'publickey/y'); |
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| 187 | if (!$x->length || !$x->item(0)->hasAttribute('Value')) { |
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| 188 | throw new \RuntimeException('Public Key / X coordinate not found'); |
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| 189 | } |
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| 190 | if (!$y->length || !$y->item(0)->hasAttribute('Value')) { |
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| 191 | throw new \RuntimeException('Public Key / Y coordinate not found'); |
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| 192 | } |
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| 193 | $point = [ |
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| 194 | $curve->convertInteger(new BigInteger($x->item(0)->getAttribute('Value'))), |
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| 195 | $curve->convertInteger(new BigInteger($y->item(0)->getAttribute('Value'))) |
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| 196 | ]; |
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| 197 | if (!$curve->verifyPoint($point)) { |
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| 198 | throw new \RuntimeException('Unable to verify that point exists on curve'); |
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| 199 | } |
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| 200 | return $point; |
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| 201 | } |
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| 202 | |||
| 203 | /** |
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| 204 | * Returns an instance of \phpseclib3\Crypt\EC\BaseCurves\Base based |
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| 205 | * on the curve parameters |
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| 206 | * |
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| 207 | * @param \DomXPath $xpath |
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| 208 | * @return \phpseclib3\Crypt\EC\BaseCurves\Base|false |
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| 209 | */ |
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| 210 | private static function loadCurveByParam(\DOMXPath $xpath) |
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| 211 | { |
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| 212 | $namedCurve = self::query($xpath, 'namedcurve'); |
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| 213 | if ($namedCurve->length == 1) { |
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| 214 | $oid = $namedCurve->item(0)->getAttribute('URN'); |
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| 215 | $oid = preg_replace('#[^\d.]#', '', $oid); |
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| 216 | $name = array_search($oid, self::$curveOIDs); |
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| 217 | if ($name === false) { |
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| 218 | throw new UnsupportedCurveException('Curve with OID of ' . $oid . ' is not supported'); |
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| 219 | } |
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| 220 | |||
| 221 | $curve = '\phpseclib3\Crypt\EC\Curves\\' . $name; |
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| 222 | if (!class_exists($curve)) { |
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| 223 | throw new UnsupportedCurveException('Named Curve of ' . $name . ' is not supported'); |
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| 224 | } |
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| 225 | return new $curve(); |
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| 226 | } |
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| 227 | |||
| 228 | $params = self::query($xpath, 'explicitparams'); |
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| 229 | if ($params->length) { |
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| 230 | return self::loadCurveByParamRFC4050($xpath); |
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| 231 | } |
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| 232 | |||
| 233 | $params = self::query($xpath, 'ecparameters'); |
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| 234 | if (!$params->length) { |
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| 235 | throw new \RuntimeException('No parameters are present'); |
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| 236 | } |
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| 237 | |||
| 238 | $fieldTypes = [ |
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| 239 | 'prime-field' => ['fieldid/prime/p'], |
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| 240 | 'gnb' => ['fieldid/gnb/m'], |
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| 241 | 'tnb' => ['fieldid/tnb/k'], |
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| 242 | 'pnb' => ['fieldid/pnb/k1', 'fieldid/pnb/k2', 'fieldid/pnb/k3'], |
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| 243 | 'unknown' => [] |
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| 244 | ]; |
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| 245 | |||
| 246 | foreach ($fieldTypes as $type => $queries) { |
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| 247 | foreach ($queries as $query) { |
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| 248 | $result = self::query($xpath, $query); |
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| 249 | if (!$result->length) { |
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| 250 | continue 2; |
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| 251 | } |
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| 252 | $param = preg_replace('#.*/#', '', $query); |
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| 253 | $$param = self::decodeValue($result->item(0)->textContent); |
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| 254 | } |
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| 255 | break; |
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| 256 | } |
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| 257 | |||
| 258 | $a = self::query($xpath, 'curve/a', 'A coefficient is not present'); |
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| 259 | $b = self::query($xpath, 'curve/b', 'B coefficient is not present'); |
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| 260 | $base = self::query($xpath, 'base', 'Base point is not present'); |
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| 261 | $order = self::query($xpath, 'order', 'Order is not present'); |
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| 262 | |||
| 263 | switch ($type) { |
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| 264 | case 'prime-field': |
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| 265 | $curve = new PrimeCurve(); |
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| 266 | $curve->setModulo(new BigInteger($p, 256)); |
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| 267 | $curve->setCoefficients( |
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| 268 | new BigInteger($a, 256), |
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| 269 | new BigInteger($b, 256) |
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| 270 | ); |
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| 271 | $point = self::extractPoint("\0" . $base, $curve); |
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| 272 | $curve->setBasePoint(...$point); |
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| 273 | $curve->setOrder(new BigInteger($order, 256)); |
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| 274 | return $curve; |
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| 275 | case 'gnb': |
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| 276 | case 'tnb': |
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| 277 | case 'pnb': |
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| 278 | default: |
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| 279 | throw new UnsupportedCurveException('Field Type of ' . $type . ' is not supported'); |
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| 280 | } |
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| 281 | } |
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| 282 | |||
| 283 | /** |
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| 284 | * Returns an instance of \phpseclib3\Crypt\EC\BaseCurves\Base based |
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| 285 | * on the curve parameters |
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| 286 | * |
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| 287 | * @param \DomXPath $xpath |
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| 288 | * @return \phpseclib3\Crypt\EC\BaseCurves\Base|false |
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| 289 | */ |
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| 290 | private static function loadCurveByParamRFC4050(\DOMXPath $xpath) |
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| 291 | { |
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| 292 | $fieldTypes = [ |
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| 293 | 'prime-field' => ['primefieldparamstype/p'], |
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| 294 | 'unknown' => [] |
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| 295 | ]; |
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| 296 | |||
| 297 | foreach ($fieldTypes as $type => $queries) { |
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| 298 | foreach ($queries as $query) { |
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| 299 | $result = self::query($xpath, $query); |
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| 300 | if (!$result->length) { |
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| 301 | continue 2; |
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| 302 | } |
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| 303 | $param = preg_replace('#.*/#', '', $query); |
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| 304 | $$param = $result->item(0)->textContent; |
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| 305 | } |
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| 306 | break; |
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| 307 | } |
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| 308 | |||
| 309 | $a = self::query($xpath, 'curveparamstype/a', 'A coefficient is not present', false); |
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| 310 | $b = self::query($xpath, 'curveparamstype/b', 'B coefficient is not present', false); |
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| 311 | $x = self::query($xpath, 'basepointparams/basepoint/ecpointtype/x', 'Base Point X is not present', false); |
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| 312 | $y = self::query($xpath, 'basepointparams/basepoint/ecpointtype/y', 'Base Point Y is not present', false); |
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| 313 | $order = self::query($xpath, 'order', 'Order is not present', false); |
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| 314 | |||
| 315 | switch ($type) { |
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| 316 | case 'prime-field': |
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| 317 | $curve = new PrimeCurve(); |
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| 318 | |||
| 319 | $p = str_replace(["\r", "\n", ' ', "\t"], '', $p); |
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| 320 | $curve->setModulo(new BigInteger($p)); |
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| 321 | |||
| 322 | $a = str_replace(["\r", "\n", ' ', "\t"], '', $a); |
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| 323 | $b = str_replace(["\r", "\n", ' ', "\t"], '', $b); |
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| 324 | $curve->setCoefficients( |
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| 325 | new BigInteger($a), |
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| 326 | new BigInteger($b) |
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| 327 | ); |
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| 328 | |||
| 329 | $x = str_replace(["\r", "\n", ' ', "\t"], '', $x); |
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| 330 | $y = str_replace(["\r", "\n", ' ', "\t"], '', $y); |
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| 331 | $curve->setBasePoint( |
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| 332 | new BigInteger($x), |
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| 333 | new BigInteger($y) |
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| 334 | ); |
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| 335 | |||
| 336 | $order = str_replace(["\r", "\n", ' ', "\t"], '', $order); |
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| 337 | $curve->setOrder(new BigInteger($order)); |
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| 338 | return $curve; |
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| 339 | default: |
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| 340 | throw new UnsupportedCurveException('Field Type of ' . $type . ' is not supported'); |
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| 341 | } |
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| 342 | } |
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| 343 | |||
| 344 | /** |
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| 345 | * Sets the namespace. dsig11 is the most common one. |
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| 346 | * |
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| 347 | * Set to null to unset. Used only for creating public keys. |
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| 348 | * |
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| 349 | * @param string $namespace |
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| 350 | */ |
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| 351 | public static function setNamespace($namespace) |
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| 352 | { |
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| 353 | self::$namespace = $namespace; |
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| 354 | } |
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| 355 | |||
| 356 | /** |
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| 357 | * Uses the XML syntax specified in https://tools.ietf.org/html/rfc4050 |
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| 358 | */ |
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| 359 | public static function enableRFC4050Syntax() |
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| 360 | { |
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| 361 | self::$rfc4050 = true; |
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| 362 | } |
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| 363 | |||
| 364 | /** |
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| 365 | * Uses the XML syntax specified in https://www.w3.org/TR/xmldsig-core/#sec-ECParameters |
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| 366 | */ |
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| 367 | public static function disableRFC4050Syntax() |
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| 368 | { |
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| 369 | self::$rfc4050 = false; |
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| 370 | } |
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| 371 | |||
| 372 | /** |
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| 373 | * Convert a public key to the appropriate format |
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| 374 | * |
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| 375 | * @param \phpseclib3\Crypt\EC\BaseCurves\Base $curve |
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| 376 | * @param \phpseclib3\Math\Common\FiniteField\Integer[] $publicKey |
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| 377 | * @param array $options optional |
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| 378 | * @return string |
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| 379 | */ |
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| 380 | public static function savePublicKey(BaseCurve $curve, array $publicKey, array $options = []) |
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| 381 | { |
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| 382 | self::initialize_static_variables(); |
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| 383 | |||
| 384 | if ($curve instanceof TwistedEdwardsCurve || $curve instanceof MontgomeryCurve) { |
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| 385 | throw new UnsupportedCurveException('TwistedEdwards and Montgomery Curves are not supported'); |
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| 386 | } |
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| 387 | |||
| 388 | if (empty(static::$namespace)) { |
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| 389 | $pre = $post = ''; |
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| 390 | } else { |
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| 391 | $pre = static::$namespace . ':'; |
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| 392 | $post = ':' . static::$namespace; |
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| 393 | } |
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| 394 | |||
| 395 | if (self::$rfc4050) { |
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| 396 | return '<' . $pre . 'ECDSAKeyValue xmlns' . $post . '="http://www.w3.org/2001/04/xmldsig-more#">' . "\r\n" . |
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| 397 | self::encodeXMLParameters($curve, $pre, $options) . "\r\n" . |
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| 398 | '<' . $pre . 'PublicKey>' . "\r\n" . |
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| 399 | '<' . $pre . 'X Value="' . $publicKey[0] . '" />' . "\r\n" . |
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| 400 | '<' . $pre . 'Y Value="' . $publicKey[1] . '" />' . "\r\n" . |
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| 401 | '</' . $pre . 'PublicKey>' . "\r\n" . |
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| 402 | '</' . $pre . 'ECDSAKeyValue>'; |
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| 403 | } |
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| 404 | |||
| 405 | $publicKey = "\4" . $publicKey[0]->toBytes() . $publicKey[1]->toBytes(); |
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| 406 | |||
| 407 | return '<' . $pre . 'ECDSAKeyValue xmlns' . $post . '="http://www.w3.org/2009/xmldsig11#">' . "\r\n" . |
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| 408 | self::encodeXMLParameters($curve, $pre, $options) . "\r\n" . |
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| 409 | '<' . $pre . 'PublicKey>' . Base64::encode($publicKey) . '</' . $pre . 'PublicKey>' . "\r\n" . |
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| 410 | '</' . $pre . 'ECDSAKeyValue>'; |
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| 411 | } |
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| 412 | |||
| 413 | /** |
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| 414 | * Encode Parameters |
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| 415 | * |
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| 416 | * @param \phpseclib3\Crypt\EC\BaseCurves\Base $curve |
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| 417 | * @param string $pre |
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| 418 | * @param array $options optional |
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| 419 | * @return string|false |
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| 420 | */ |
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| 421 | private static function encodeXMLParameters(BaseCurve $curve, $pre, array $options = []) |
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| 422 | { |
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| 423 | $result = self::encodeParameters($curve, true, $options); |
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| 424 | |||
| 425 | if (isset($result['namedCurve'])) { |
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| 426 | $namedCurve = '<' . $pre . 'NamedCurve URI="urn:oid:' . self::$curveOIDs[$result['namedCurve']] . '" />'; |
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| 427 | return self::$rfc4050 ? |
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| 428 | '<DomainParameters>' . str_replace('URI', 'URN', $namedCurve) . '</DomainParameters>' : |
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| 429 | $namedCurve; |
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| 430 | } |
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| 431 | |||
| 432 | if (self::$rfc4050) { |
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| 433 | $xml = '<' . $pre . 'ExplicitParams>' . "\r\n" . |
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| 434 | '<' . $pre . 'FieldParams>' . "\r\n"; |
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| 435 | $temp = $result['specifiedCurve']; |
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| 436 | switch ($temp['fieldID']['fieldType']) { |
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| 437 | case 'prime-field': |
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| 438 | $xml .= '<' . $pre . 'PrimeFieldParamsType>' . "\r\n" . |
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| 439 | '<' . $pre . 'P>' . $temp['fieldID']['parameters'] . '</' . $pre . 'P>' . "\r\n" . |
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| 440 | '</' . $pre . 'PrimeFieldParamsType>' . "\r\n"; |
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| 441 | $a = $curve->getA(); |
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| 442 | $b = $curve->getB(); |
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| 443 | list($x, $y) = $curve->getBasePoint(); |
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| 444 | break; |
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| 445 | default: |
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| 446 | throw new UnsupportedCurveException('Field Type of ' . $temp['fieldID']['fieldType'] . ' is not supported'); |
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| 447 | } |
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| 448 | $xml .= '</' . $pre . 'FieldParams>' . "\r\n" . |
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| 449 | '<' . $pre . 'CurveParamsType>' . "\r\n" . |
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| 450 | '<' . $pre . 'A>' . $a . '</' . $pre . 'A>' . "\r\n" . |
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| 451 | '<' . $pre . 'B>' . $b . '</' . $pre . 'B>' . "\r\n" . |
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| 452 | '</' . $pre . 'CurveParamsType>' . "\r\n" . |
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| 453 | '<' . $pre . 'BasePointParams>' . "\r\n" . |
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| 454 | '<' . $pre . 'BasePoint>' . "\r\n" . |
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| 455 | '<' . $pre . 'ECPointType>' . "\r\n" . |
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| 456 | '<' . $pre . 'X>' . $x . '</' . $pre . 'X>' . "\r\n" . |
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| 457 | '<' . $pre . 'Y>' . $y . '</' . $pre . 'Y>' . "\r\n" . |
||
| 458 | '</' . $pre . 'ECPointType>' . "\r\n" . |
||
| 459 | '</' . $pre . 'BasePoint>' . "\r\n" . |
||
| 460 | '<' . $pre . 'Order>' . $curve->getOrder() . '</' . $pre . 'Order>' . "\r\n" . |
||
| 461 | '</' . $pre . 'BasePointParams>' . "\r\n" . |
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| 462 | '</' . $pre . 'ExplicitParams>' . "\r\n"; |
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| 463 | |||
| 464 | return $xml; |
||
| 465 | } |
||
| 466 | |||
| 467 | if (isset($result['specifiedCurve'])) { |
||
| 468 | $xml = '<' . $pre . 'ECParameters>' . "\r\n" . |
||
| 469 | '<' . $pre . 'FieldID>' . "\r\n"; |
||
| 470 | $temp = $result['specifiedCurve']; |
||
| 471 | switch ($temp['fieldID']['fieldType']) { |
||
| 472 | case 'prime-field': |
||
| 473 | $xml .= '<' . $pre . 'Prime>' . "\r\n" . |
||
| 474 | '<' . $pre . 'P>' . Base64::encode($temp['fieldID']['parameters']->toBytes()) . '</' . $pre . 'P>' . "\r\n" . |
||
| 475 | '</' . $pre . 'Prime>' . "\r\n" ; |
||
| 476 | break; |
||
| 477 | default: |
||
| 478 | throw new UnsupportedCurveException('Field Type of ' . $temp['fieldID']['fieldType'] . ' is not supported'); |
||
| 479 | } |
||
| 480 | $xml .= '</' . $pre . 'FieldID>' . "\r\n" . |
||
| 481 | '<' . $pre . 'Curve>' . "\r\n" . |
||
| 482 | '<' . $pre . 'A>' . Base64::encode($temp['curve']['a']) . '</' . $pre . 'A>' . "\r\n" . |
||
| 483 | '<' . $pre . 'B>' . Base64::encode($temp['curve']['b']) . '</' . $pre . 'B>' . "\r\n" . |
||
| 484 | '</' . $pre . 'Curve>' . "\r\n" . |
||
| 485 | '<' . $pre . 'Base>' . Base64::encode($temp['base']) . '</' . $pre . 'Base>' . "\r\n" . |
||
| 486 | '<' . $pre . 'Order>' . Base64::encode($temp['order']) . '</' . $pre . 'Order>' . "\r\n" . |
||
| 487 | '</' . $pre . 'ECParameters>'; |
||
| 488 | return $xml; |
||
| 489 | } |
||
| 490 | } |
||
| 491 | } |