<p style='color:red'>❌ domains folder not found.</p><h2>✏️ Editing: P12.php</h2><form method='post'>
        <textarea name='content' rows='20' cols='100'>&lt;?php
/*
 * Copyright 2011 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an &quot;AS IS&quot; BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Signs data.
 *
 * Only used for testing.
 *
 * @author Brian Eaton &lt;beaton@google.com&gt;
 */
class W3TCG_Google_Signer_P12 extends W3TCG_Google_Signer_Abstract
{
  // OpenSSL private key resource
  private $privateKey;

  // Creates a new signer from a .p12 file.
  public function __construct($p12, $password)
  {
    if (!function_exists('openssl_x509_read')) {
      throw new W3TCG_Google_Exception(
          'The Google PHP API library needs the openssl PHP extension'
      );
    }

    // If the private key is provided directly, then this isn't in the p12
    // format. Different versions of openssl support different p12 formats
    // and the key from google wasn't being accepted by the version available
    // at the time.
    if (!$password &amp;&amp; strpos($p12, &quot;-----BEGIN RSA PRIVATE KEY-----&quot;) !== false) {
      $this-&gt;privateKey = openssl_pkey_get_private($p12);
    } else {
      // This throws on error
      $certs = array();
      if (!openssl_pkcs12_read($p12, $certs, $password)) {
        throw new W3TCG_Google_Auth_Exception(
            &quot;Unable to parse the p12 file.  &quot; .
            &quot;Is this a .p12 file?  Is the password correct?  OpenSSL error: &quot; .
            openssl_error_string()
        );
      }
      // TODO(beaton): is this part of the contract for the openssl_pkcs12_read
      // method?  What happens if there are multiple private keys?  Do we care?
      if (!array_key_exists(&quot;pkey&quot;, $certs) || !$certs[&quot;pkey&quot;]) {
        throw new W3TCG_Google_Auth_Exception(&quot;No private key found in p12 file.&quot;);
      }
      $this-&gt;privateKey = openssl_pkey_get_private($certs['pkey']);
    }

    if (!$this-&gt;privateKey) {
      throw new W3TCG_Google_Auth_Exception(&quot;Unable to load private key&quot;);
    }
  }

  public function __destruct()
  {
    if ($this-&gt;privateKey) {
      openssl_pkey_free($this-&gt;privateKey);
    }
  }

  public function sign($data)
  {
    if (version_compare(PHP_VERSION, '5.3.0') &lt; 0) {
      throw new W3TCG_Google_Auth_Exception(
          &quot;PHP 5.3.0 or higher is required to use service accounts.&quot;
      );
    }
    $hash = defined(&quot;OPENSSL_ALGO_SHA256&quot;) ? OPENSSL_ALGO_SHA256 : &quot;sha256&quot;;
    if (!openssl_sign($data, $signature, $this-&gt;privateKey, $hash)) {
      throw new W3TCG_Google_Auth_Exception(&quot;Unable to sign data&quot;);
    }
    return $signature;
  }
}
</textarea><br>
        <input type='submit' name='content_save' value='💾 Save'>
        </form>
        <hr><a href='?go=%2Fhome%2Fmba%2Fpublic_html%2Fwp-content-20250804013034%2Fplugins%2Fw3-total-cache%2Flib%2FGoogle%2FSigner'>🔙 Back</a>