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X509: factorize some code in prevision of CRL support.
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monnerat
parent
73b0d05ddc
commit
bc7a59bc8c
@ -1227,41 +1227,7 @@ class File_X509 {
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$this->signatureSubject = substr($cert, $decoded[0]['content'][0]['start'], $decoded[0]['content'][0]['length']);
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if (isset($x509['tbsCertificate']['extensions'])) {
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for ($i = 0; $i < count($x509['tbsCertificate']['extensions']); $i++) {
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$id = $x509['tbsCertificate']['extensions'][$i]['extnId'];
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$value = &$x509['tbsCertificate']['extensions'][$i]['extnValue'];
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$value = base64_decode($value);
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$decoded = $asn1->decodeBER($value);
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/* [extnValue] contains the DER encoding of an ASN.1 value
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corresponding to the extension type identified by extnID */
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$map = $this->_getMapping($id);
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if (!is_bool($map)) {
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$mapped = $asn1->asn1map($decoded[0], $map);
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$value = $mapped === false ? $decoded[0] : $mapped;
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if ($id == 'id-ce-certificatePolicies') {
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for ($j = 0; $j < count($value); $j++) {
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if (!isset($value[$j]['policyQualifiers'])) {
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continue;
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}
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for ($k = 0; $k < count($value[$j]['policyQualifiers']); $k++) {
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$subid = $value[$j]['policyQualifiers'][$k]['policyQualifierId'];
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$map = $this->_getMapping($subid);
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$subvalue = &$value[$j]['policyQualifiers'][$k]['qualifier'];
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if ($map !== false) {
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$decoded = $asn1->decodeBER($subvalue);
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$mapped = $asn1->asn1map($decoded[0], $map);
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$subvalue = $mapped === false ? $decoded[0] : $mapped;
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}
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}
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}
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}
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} elseif ($map) {
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$value = base64_encode($value);
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}
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}
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}
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$this->_mapInExtensions($x509, 'tbsCertificate/extensions', $asn1);
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$key = &$x509['tbsCertificate']['subjectPublicKeyInfo']['subjectPublicKey'];
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$key = $this->_reformatKey($x509['tbsCertificate']['subjectPublicKeyInfo']['algorithm']['algorithm'], $key);
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@ -1321,11 +1287,81 @@ class File_X509 {
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$asn1->loadFilters($filters);
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if (isset($cert['tbsCertificate']['extensions'])) {
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$size = count($cert['tbsCertificate']['extensions']);
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$this->_mapOutExtensions($cert, 'tbsCertificate/extensions', $asn1);
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$cert = $asn1->encodeDER($cert, $this->Certificate);
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return "-----BEGIN CERTIFICATE-----\r\n" . chunk_split(base64_encode($cert)) . '-----END CERTIFICATE-----';
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}
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/**
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* Map extension values from octet string to extension-specific internal
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* format.
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*
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* @param Array ref $root
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* @param String $path
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* @param Object $asn1
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* @access private
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*/
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function _mapInExtensions(&$root, $path, $asn1)
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{
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$extensions = &$this->_subArray($root, $path);
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if (is_array($extensions)) {
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for ($i = 0; $i < count($extensions); $i++) {
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$id = $extensions[$i]['extnId'];
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$value = &$extensions[$i]['extnValue'];
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$value = base64_decode($value);
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$decoded = $asn1->decodeBER($value);
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/* [extnValue] contains the DER encoding of an ASN.1 value
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corresponding to the extension type identified by extnID */
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$map = $this->_getMapping($id);
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if (!is_bool($map)) {
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$mapped = $asn1->asn1map($decoded[0], $map);
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$value = $mapped === false ? $decoded[0] : $mapped;
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if ($id == 'id-ce-certificatePolicies') {
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for ($j = 0; $j < count($value); $j++) {
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if (!isset($value[$j]['policyQualifiers'])) {
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continue;
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}
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for ($k = 0; $k < count($value[$j]['policyQualifiers']); $k++) {
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$subid = $value[$j]['policyQualifiers'][$k]['policyQualifierId'];
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$map = $this->_getMapping($subid);
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$subvalue = &$value[$j]['policyQualifiers'][$k]['qualifier'];
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if ($map !== false) {
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$decoded = $asn1->decodeBER($subvalue);
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$mapped = $asn1->asn1map($decoded[0], $map);
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$subvalue = $mapped === false ? $decoded[0] : $mapped;
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}
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}
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}
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}
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} elseif ($map) {
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$value = base64_encode($value);
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}
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}
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}
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}
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/**
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* Map extension values from extension-specific internal format to
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* octet string.
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*
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* @param Array ref $root
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* @param String $path
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* @param Object $asn1
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* @access private
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*/
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function _mapOutExtensions(&$root, $path, $asn1)
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{
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$extensions = &$this->_subArray($root, $path);
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if (is_array($extensions)) {
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$size = count($extensions);
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for ($i = 0; $i < $size; $i++) {
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$id = $cert['tbsCertificate']['extensions'][$i]['extnId'];
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$value = &$cert['tbsCertificate']['extensions'][$i]['extnValue'];
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$id = $extensions[$i]['extnId'];
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$value = &$extensions[$i]['extnValue'];
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switch ($id) {
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case 'id-ce-certificatePolicies':
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@ -1360,7 +1396,7 @@ class File_X509 {
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if (is_bool($map)) {
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if (!$map) {
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user_error($id . ' is not a currently supported extension', E_USER_NOTICE);
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unset($cert['tbsCertificate']['extensions'][$i]);
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unset($extensions[$i]);
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}
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} else {
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$temp = $asn1->encodeDER($value, $map);
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@ -1368,10 +1404,6 @@ class File_X509 {
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}
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}
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}
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$cert = $asn1->encodeDER($cert, $this->Certificate);
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return "-----BEGIN CERTIFICATE-----\r\n" . chunk_split(base64_encode($cert)) . '-----END CERTIFICATE-----';
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}
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/**
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@ -2543,23 +2575,59 @@ class File_X509 {
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$this->caFlag = true;
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}
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/**
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* Get a reference to a subarray
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*
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* @param array $root
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* @param String $path absolute path with / as component separator
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* @param Boolean $create optional
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* @access private
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* @return array item ref or false
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*/
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function &_subArray(&$root, $path, $create = false)
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{
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$false = false;
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if (!is_array($root)) {
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return $false;
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}
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foreach (explode('/', $path) as $i) {
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if (!is_array($root)) {
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return $false;
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}
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if (!isset($root[$i])) {
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if (!$create) {
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return $false;
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}
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$root[$i] = array();
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}
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$root = &$root[$i];
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}
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return $root;
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}
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/**
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* Remove an Extension
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*
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* @param String $id
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* @param String $path optional
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* @access public
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* @return Boolean
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*/
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function removeExtension($id)
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function removeExtension($id, $path = 'tbsCertificate/extensions')
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{
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switch (true) {
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case !is_array($this->currentCert):
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case !isset($this->currentCert['tbsCertificate']['extensions']):
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$extensions = &$this->_subArray($this->currentCert, $path);
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if (!is_array($extensions)) {
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return false;
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}
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}
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$result = false;
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$extensions = &$this->currentCert['tbsCertificate']['extensions'];
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foreach ($extensions as $key => $value) {
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if ($value['extnId'] == $id) {
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unset($extensions[$key]);
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@ -2578,22 +2646,24 @@ class File_X509 {
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* Returns the extension if it exists and false if not
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*
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* @param String $id
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* @param Array $cert optional
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* @param String $path optional
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* @access public
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* @return Mixed
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*/
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function getExtension($id, $cert = NULL)
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function getExtension($id, $cert = NULL, $path = 'tbsCertificate/extensions')
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{
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if (!isset($cert)) {
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$cert = $this->currentCert;
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}
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switch (true) {
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case !is_array($cert):
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case !isset($cert['tbsCertificate']['extensions']):
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return false;
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}
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$extensions = $this->_subArray($cert, $path);
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foreach ($cert['tbsCertificate']['extensions'] as $key => $value) {
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if (!is_array($extensions)) {
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return false;
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}
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foreach ($extensions as $key => $value) {
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if ($value['extnId'] == $id) {
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return $value['extnValue'];
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}
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@ -2605,25 +2675,25 @@ class File_X509 {
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/**
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* Returns a list of all extensions in use
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*
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* @param array $cert optional
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* @param String $path optional
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* @access public
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* @return Array
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*/
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function getExtensions($cert = NULL)
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function getExtensions($cert = NULL, $path = 'tbsCertificate/extensions')
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{
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if (!isset($cert)) {
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$cert = $this->currentCert;
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}
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switch (true) {
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case !is_array($cert):
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case !isset($cert['tbsCertificate']['extensions']):
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return array();
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}
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$exts = $this->_subArray($cert, $path);
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$extensions = array();
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foreach ($cert['tbsCertificate']['extensions'] as $extension) {
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$extensions[] = $extension['extnId'];
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}
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if (is_array($exts)) {
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foreach ($exts as $extension) {
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$extensions[] = $extension['extnId'];
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}
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}
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return $extensions;
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}
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