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   1  <?php
   2  /*
   3   * This file is part of the PHPASN1 library.
   4   *
   5   * Copyright © Friedrich Große <[email protected]>
   6   *
   7   * For the full copyright and license information, please view the LICENSE
   8   * file that was distributed with this source code.
   9   */
  10  
  11  namespace FG\X509\CSR;
  12  
  13  use FG\ASN1\OID;
  14  use FG\ASN1\Universal\Integer;
  15  use FG\ASN1\Universal\BitString;
  16  use FG\ASN1\Universal\Sequence;
  17  use FG\X509\CertificateSubject;
  18  use FG\X509\AlgorithmIdentifier;
  19  use FG\X509\PublicKey;
  20  
  21  class CSR extends Sequence
  22  {
  23      const CSR_VERSION_NR = 0;
  24  
  25      protected $subject;
  26      protected $publicKey;
  27      protected $signature;
  28      protected $signatureAlgorithm;
  29  
  30      protected $startSequence;
  31  
  32      /**
  33       * @param string $commonName
  34       * @param string $email
  35       * @param string $organization
  36       * @param string $locality
  37       * @param string $state
  38       * @param string $country
  39       * @param string $organizationalUnit
  40       * @param string $publicKey
  41       * @param string $signature
  42       * @param string $signatureAlgorithm
  43       */
  44      public function __construct($commonName, $email, $organization, $locality, $state, $country, $organizationalUnit, $publicKey, $signature = null, $signatureAlgorithm = OID::SHA1_WITH_RSA_SIGNATURE)
  45      {
  46          $this->subject = new CertificateSubject(
  47              $commonName,
  48              $email,
  49              $organization,
  50              $locality,
  51              $state,
  52              $country,
  53              $organizationalUnit
  54          );
  55          $this->publicKey = $publicKey;
  56          $this->signature = $signature;
  57          $this->signatureAlgorithm = $signatureAlgorithm;
  58  
  59          if (isset($signature)) {
  60              $this->createCSRSequence();
  61          }
  62      }
  63  
  64      protected function createCSRSequence()
  65      {
  66          $versionNr            = new Integer(self::CSR_VERSION_NR);
  67          $publicKey            = new PublicKey($this->publicKey);
  68          $signature            = new BitString($this->signature);
  69          $signatureAlgorithm    = new AlgorithmIdentifier($this->signatureAlgorithm);
  70  
  71          $certRequestInfo  = new Sequence($versionNr, $this->subject, $publicKey);
  72  
  73          // Clear the underlying Construct
  74          $this->rewind();
  75          $this->children = [];
  76          $this->addChild($certRequestInfo);
  77          $this->addChild($signatureAlgorithm);
  78          $this->addChild($signature);
  79      }
  80  
  81      public function getSignatureSubject()
  82      {
  83          $versionNr            = new Integer(self::CSR_VERSION_NR);
  84          $publicKey            = new PublicKey($this->publicKey);
  85  
  86          $certRequestInfo  = new Sequence($versionNr, $this->subject, $publicKey);
  87          return $certRequestInfo->getBinary();
  88      }
  89  
  90      public function setSignature($signature, $signatureAlgorithm = OID::SHA1_WITH_RSA_SIGNATURE)
  91      {
  92          $this->signature = $signature;
  93          $this->signatureAlgorithm = $signatureAlgorithm;
  94  
  95          $this->createCSRSequence();
  96      }
  97  
  98      public function __toString()
  99      {
 100          $tmp = base64_encode($this->getBinary());
 101  
 102          for ($i = 0; $i < strlen($tmp); $i++) {
 103              if (($i + 2) % 65 == 0) {
 104                  $tmp = substr($tmp, 0, $i + 1)."\n".substr($tmp, $i + 1);
 105              }
 106          }
 107  
 108          $result = '-----BEGIN CERTIFICATE REQUEST-----'.PHP_EOL;
 109          $result .= $tmp.PHP_EOL;
 110          $result .= '-----END CERTIFICATE REQUEST-----';
 111  
 112          return $result;
 113      }
 114  
 115      public function getVersion()
 116      {
 117          return self::CSR_VERSION_NR;
 118      }
 119  
 120      public function getOrganizationName()
 121      {
 122          return $this->subject->getOrganization();
 123      }
 124  
 125      public function getLocalName()
 126      {
 127          return $this->subject->getLocality();
 128      }
 129  
 130      public function getState()
 131      {
 132          return $this->subject->getState();
 133      }
 134  
 135      public function getCountry()
 136      {
 137          return $this->subject->getCountry();
 138      }
 139  
 140      public function getOrganizationalUnit()
 141      {
 142          return $this->subject->getOrganizationalUnit();
 143      }
 144  
 145      public function getPublicKey()
 146      {
 147          return $this->publicKey;
 148      }
 149  
 150      public function getSignature()
 151      {
 152          return $this->signature;
 153      }
 154  
 155      public function getSignatureAlgorithm()
 156      {
 157          return $this->signatureAlgorithm;
 158      }
 159  }