/usr/share/php/Horde/Crypt/Smime.php is in php-horde-crypt 2.4.0-1.
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/**
* Library to interact with the OpenSSL library and implement S/MIME.
*
* Copyright 2002-2013 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.horde.org/licenses/lgpl21.
*
* @author Mike Cochrane <mike@graftonhall.co.nz>
* @author Michael Slusarz <slusarz@horde.org>
* @category Horde
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package Crypt
*/
class Horde_Crypt_Smime extends Horde_Crypt
{
/**
* Verify a passphrase for a given private key.
*
* @param string $private_key The user's private key.
* @param string $passphrase The user's passphrase.
*
* @return boolean Returns true on valid passphrase, false on invalid
* passphrase.
*/
public function verifyPassphrase($private_key, $passphrase)
{
$res = is_null($passphrase)
? openssl_pkey_get_private($private_key)
: openssl_pkey_get_private($private_key, $passphrase);
return is_resource($res);
}
/**
* Encrypt text using S/MIME.
*
* @param string $text The text to be encrypted.
* @param array $params The parameters needed for encryption.
* See the individual _encrypt*() functions for
* the parameter requirements.
*
* @return string The encrypted message.
* @throws Horde_Crypt_Exception
*/
public function encrypt($text, $params = array())
{
/* Check for availability of OpenSSL PHP extension. */
$this->checkForOpenSSL();
if (isset($params['type'])) {
if ($params['type'] === 'message') {
return $this->_encryptMessage($text, $params);
} elseif ($params['type'] === 'signature') {
return $this->_encryptSignature($text, $params);
}
}
}
/**
* Decrypt text via S/MIME.
*
* @param string $text The text to be smime decrypted.
* @param array $params The parameters needed for decryption.
* See the individual _decrypt*() functions for
* the parameter requirements.
*
* @return string The decrypted message.
* @throws Horde_Crypt_Exception
*/
public function decrypt($text, $params = array())
{
/* Check for availability of OpenSSL PHP extension. */
$this->checkForOpenSSL();
if (isset($params['type'])) {
if ($params['type'] === 'message') {
return $this->_decryptMessage($text, $params);
} elseif (($params['type'] === 'signature') ||
($params['type'] === 'detached-signature')) {
return $this->_decryptSignature($text, $params);
}
}
}
/**
* Verify a signature using via S/MIME.
*
* @param string $text The multipart/signed data to be verified.
* @param mixed $certs Either a single or array of root certificates.
*
* @return stdClass Object with the following elements:
* <pre>
* cert - (string) The certificate of the signer stored in the message (in
* PEM format).
* email - (string) The email of the signing person.
* msg - (string) Status string.
* verify - (boolean) True if certificate was verified.
* </pre>
* @throws Horde_Crypt_Exception
*/
public function verify($text, $certs)
{
/* Check for availability of OpenSSL PHP extension. */
$this->checkForOpenSSL();
/* Create temp files for input/output. */
$input = $this->_createTempFile('horde-smime');
$output = $this->_createTempFile('horde-smime');
/* Write text to file */
file_put_contents($input, $text);
unset($text);
$root_certs = array();
if (!is_array($certs)) {
$certs = array($certs);
}
foreach ($certs as $file) {
if (file_exists($file)) {
$root_certs[] = $file;
}
}
$ob = new stdClass;
if (!empty($root_certs) &&
(openssl_pkcs7_verify($input, 0, $output, $root_certs) === true)) {
/* Message verified */
$ob->msg = Horde_Crypt_Translation::t("Message verified successfully.");
$ob->verify = true;
} else {
/* Try again without verfying the signer's cert */
$result = openssl_pkcs7_verify($input, PKCS7_NOVERIFY, $output);
if ($result === -1) {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("Verification failed - an unknown error has occurred."));
} elseif ($result === false) {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("Verification failed - this message may have been tampered with."));
}
$ob->msg = Horde_Crypt_Translation::t("Message verified successfully but the signer's certificate could not be verified.");
$ob->verify = false;
}
$ob->cert = file_get_contents($output);
$ob->email = $this->getEmailFromKey($ob->cert);
return $ob;
}
/**
* Extract the contents from signed S/MIME data.
*
* @param string $data The signed S/MIME data.
* @param string $sslpath The path to the OpenSSL binary.
*
* @return string The contents embedded in the signed data.
* @throws Horde_Crypt_Exception
*/
public function extractSignedContents($data, $sslpath)
{
/* Check for availability of OpenSSL PHP extension. */
$this->checkForOpenSSL();
/* Create temp files for input/output. */
$input = $this->_createTempFile('horde-smime');
$output = $this->_createTempFile('horde-smime');
/* Write text to file. */
file_put_contents($input, $data);
unset($data);
exec($sslpath . ' smime -verify -noverify -nochain -in ' . $input . ' -out ' . $output);
$ret = file_get_contents($output);
if ($ret) {
return $ret;
}
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("OpenSSL error: Could not extract data from signed S/MIME part."));
}
/**
* Sign a MIME part using S/MIME. This produces S/MIME Version 3.2
* compatible data (see RFC 5751 [3.4]).
*
* @param Horde_Mime_Part $mime_part The object to sign.
* @param array $params The parameters required for signing.
*
* @return Horde_Mime_Part A signed MIME part object.
* @throws Horde_Crypt_Exception
*/
public function signMIMEPart($mime_part, $params)
{
/* Sign the part as a message */
$message = $this->encrypt($mime_part->toString(array('headers' => true, 'canonical' => true)), $params);
/* Break the result into its components */
$mime_message = Horde_Mime_Part::parseMessage($message, array('forcemime' => true));
$smime_sign = $mime_message->getPart('2');
$smime_sign->setDescription(Horde_Crypt_Translation::t("S/MIME Signature"));
$smime_sign->setTransferEncoding('base64', array('send' => true));
$smime_part = new Horde_Mime_Part();
$smime_part->setType('multipart/signed');
$smime_part->setContents("This is a cryptographically signed message in MIME format.\n");
$smime_part->setContentTypeParameter('protocol', 'application/pkcs7-signature');
// Per RFC 5751 [3.4.3.2], 'sha1' has been deprecated for 'sha-1'.
$smime_part->setContentTypeParameter('micalg', 'sha-1');
$smime_part->addPart($mime_part);
$smime_part->addPart($smime_sign);
return $smime_part;
}
/**
* Encrypt a MIME part using S/MIME. This produces S/MIME Version 3.2
* compatible data (see RFC 5751 [3.3]).
*
* @param Horde_Mime_Part $mime_part The object to encrypt.
* @param array $params The parameters required for
* encryption.
*
* @return Horde_Mime_Part An encrypted MIME part object.
* @throws Horde_Crypt_Exception
*/
public function encryptMIMEPart($mime_part, $params = array())
{
/* Sign the part as a message */
$message = $this->encrypt($mime_part->toString(array('headers' => true, 'canonical' => true)), $params);
$msg = new Horde_Mime_Part();
$msg->setCharset($this->_params['email_charset']);
$msg->setHeaderCharset('UTF-8');
$msg->setDescription(Horde_Crypt_Translation::t("S/MIME Encrypted Message"));
$msg->setDisposition('inline');
$msg->setType('application/pkcs7-mime');
$msg->setContentTypeParameter('smime-type', 'enveloped-data');
$msg->setContents(substr($message, strpos($message, "\n\n") + 2), array('encoding' => 'base64'));
return $msg;
}
/**
* Encrypt a message in S/MIME format using a public key.
*
* @param string $text The text to be encrypted.
* @param array $params The parameters needed for encryption.
* <pre>
* Parameters:
* ===========
* 'type' => 'message' (REQUIRED)
* 'pubkey' => public key (REQUIRED)
* </pre>
*
* @return string The encrypted message.
* @throws Horde_Crypt_Exception
*/
protected function _encryptMessage($text, $params)
{
/* Check for required parameters. */
if (!isset($params['pubkey'])) {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("A public S/MIME key is required to encrypt a message."));
}
/* Create temp files for input/output. */
$input = $this->_createTempFile('horde-smime');
$output = $this->_createTempFile('horde-smime');
/* Store message in file. */
file_put_contents($input, $text);
unset($text);
/* Encrypt the document. */
$ciphers = array(
OPENSSL_CIPHER_3DES,
OPENSSL_CIPHER_DES,
OPENSSL_CIPHER_RC2_128,
OPENSSL_CIPHER_RC2_64,
OPENSSL_CIPHER_RC2_40
);
foreach ($ciphers as $val) {
if (openssl_pkcs7_encrypt($input, $output, $params['pubkey'], array(), 0, $val)) {
$result = file_get_contents($output);
if (!empty($result)) {
return $this->_fixContentType($result, 'encrypt');
}
}
}
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("Could not S/MIME encrypt message."));
}
/**
* Sign a message in S/MIME format using a private key.
*
* @param string $text The text to be signed.
* @param array $params The parameters needed for signing.
* <pre>
* Parameters:
* ===========
* 'certs' => Additional signing certs (Optional)
* 'passphrase' => Passphrase for key (REQUIRED)
* 'privkey' => Private key (REQUIRED)
* 'pubkey' => Public key (REQUIRED)
* 'sigtype' => Determine the signature type to use. (Optional)
* 'cleartext' -- Make a clear text signature
* 'detach' -- Make a detached signature (DEFAULT)
* 'type' => 'signature' (REQUIRED)
* </pre>
*
* @return string The signed message.
* @throws Horde_Crypt_Exception
*/
protected function _encryptSignature($text, $params)
{
/* Check for required parameters. */
if (!isset($params['pubkey']) ||
!isset($params['privkey']) ||
!array_key_exists('passphrase', $params)) {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("A public S/MIME key, private S/MIME key, and passphrase are required to sign a message."));
}
/* Create temp files for input/output/certificates. */
$input = $this->_createTempFile('horde-smime');
$output = $this->_createTempFile('horde-smime');
$certs = $this->_createTempFile('horde-smime');
/* Store message in temporary file. */
file_put_contents($input, $text);
unset($text);
/* Store additional certs in temporary file. */
if (!empty($params['certs'])) {
file_put_contents($certs, $params['certs']);
}
/* Determine the signature type to use. */
$flags = (isset($params['sigtype']) && ($params['sigtype'] == 'cleartext'))
? PKCS7_TEXT
: PKCS7_DETACHED;
$privkey = (is_null($params['passphrase'])) ? $params['privkey'] : array($params['privkey'], $params['passphrase']);
if (empty($params['certs'])) {
$res = openssl_pkcs7_sign($input, $output, $params['pubkey'], $privkey, array(), $flags);
} else {
$res = openssl_pkcs7_sign($input, $output, $params['pubkey'], $privkey, array(), $flags, $certs);
}
if (!$res) {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("Could not S/MIME sign message."));
}
/* Output from openssl_pkcs7_sign may contain both \n and \r\n EOLs.
* Canonicalize to \r\n. */
$fp = fopen($output, 'r');
stream_filter_register('horde_eol', 'Horde_Stream_Filter_Eol');
stream_filter_append($fp, 'horde_eol');
$data = stream_get_contents($fp);
fclose($fp);
return $this->_fixContentType($data, 'signature');
}
/**
* Decrypt an S/MIME encrypted message using a private/public keypair
* and a passhprase.
*
* @param string $text The text to be decrypted.
* @param array $params The parameters needed for decryption.
* <pre>
* Parameters:
* ===========
* 'type' => 'message' (REQUIRED)
* 'pubkey' => public key. (REQUIRED)
* 'privkey' => private key. (REQUIRED)
* 'passphrase' => Passphrase for Key. (REQUIRED)
* </pre>
*
* @return string The decrypted message.
* @throws Horde_Crypt_Exception
*/
protected function _decryptMessage($text, $params)
{
/* Check for required parameters. */
if (!isset($params['pubkey']) ||
!isset($params['privkey']) ||
!array_key_exists('passphrase', $params)) {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("A public S/MIME key, private S/MIME key, and passphrase are required to decrypt a message."));
}
/* Create temp files for input/output. */
$input = $this->_createTempFile('horde-smime');
$output = $this->_createTempFile('horde-smime');
/* Store message in file. */
file_put_contents($input, $text);
unset($text);
$privkey = is_null($params['passphrase'])
? $params['privkey']
: array($params['privkey'], $params['passphrase']);
if (openssl_pkcs7_decrypt($input, $output, $params['pubkey'], $privkey)) {
return file_get_contents($output);
}
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("Could not decrypt S/MIME data."));
}
/**
* Sign and Encrypt a MIME part using S/MIME.
*
* @param Horde_Mime_Part $mime_part The object to sign and encrypt.
* @param array $sign_params The parameters required for
* signing. @see _encryptSignature().
* @param array $encrypt_params The parameters required for
* encryption.
* @see _encryptMessage().
*
* @return mixed A Horde_Mime_Part object that is signed and encrypted.
* @throws Horde_Crypt_Exception
*/
public function signAndEncryptMIMEPart($mime_part, $sign_params = array(),
$encrypt_params = array())
{
$part = $this->signMIMEPart($mime_part, $sign_params);
return $this->encryptMIMEPart($part, $encrypt_params);
}
/**
* Convert a PEM format certificate to readable HTML version.
*
* @param string $cert PEM format certificate.
*
* @return string HTML detailing the certificate.
*/
public function certToHTML($cert)
{
$fieldnames = array(
/* Common Fields */
'description' => Horde_Crypt_Translation::t("Description"),
'emailAddress' => Horde_Crypt_Translation::t("Email Address"),
'commonName' => Horde_Crypt_Translation::t("Common Name"),
'organizationName' => Horde_Crypt_Translation::t("Organisation"),
'organizationalUnitName' => Horde_Crypt_Translation::t("Organisational Unit"),
'countryName' => Horde_Crypt_Translation::t("Country"),
'stateOrProvinceName' => Horde_Crypt_Translation::t("State or Province"),
'localityName' => Horde_Crypt_Translation::t("Location"),
'streetAddress' => Horde_Crypt_Translation::t("Street Address"),
'telephoneNumber' => Horde_Crypt_Translation::t("Telephone Number"),
'surname' => Horde_Crypt_Translation::t("Surname"),
'givenName' => Horde_Crypt_Translation::t("Given Name"),
/* X590v3 Extensions */
'exendedtKeyUsage' => Horde_Crypt_Translation::t("X509v3 Extended Key Usage"),
'basicConstraints' => Horde_Crypt_Translation::t("X509v3 Basic Constraints"),
'subjectAltName' => Horde_Crypt_Translation::t("X509v3 Subject Alternative Name"),
'subjectKeyIdentifier' => Horde_Crypt_Translation::t("X509v3 Subject Key Identifier"),
'certificatePolicies' => Horde_Crypt_Translation::t("Certificate Policies"),
'crlDistributionPoints' => Horde_Crypt_Translation::t("CRL Distribution Points"),
'keyUsage' => Horde_Crypt_Translation::t("Key Usage")
);
$details = $this->parseCert($cert);
$text = '<pre class="fixed">';
/* Subject (a/k/a Certificate Owner) */
$text .= "<strong>" . Horde_Crypt_Translation::t("Certificate Owner") . ":</strong>\n";
foreach ($details['subject'] as $key => $value) {
$value = htmlspecialchars($this->_implodeValues($value));
$text .= isset($fieldnames[$key])
? sprintf(" %s: %s\n", htmlspecialchars($fieldnames[$key]), $value)
: sprintf(" *%s: %s\n", htmlspecialchars($key), $value);
}
$text .= "\n";
/* Issuer */
$text .= "<strong>" . Horde_Crypt_Translation::t("Issuer") . ":</strong>\n";
foreach ($details['issuer'] as $key => $value) {
$value = htmlspecialchars($this->_implodeValues($value));
$text .= isset($fieldnames[$key])
? sprintf(" %s: %s\n", htmlspecialchars($fieldnames[$key]), $value)
: sprintf(" *%s: %s\n", htmlspecialchars($key), $value);
}
$text .= "\n";
/* Dates */
$text .= "<strong>" . Horde_Crypt_Translation::t("Validity") . ":</strong>\n" .
sprintf(" %s: %s\n", Horde_Crypt_Translation::t("Not Before"), strftime("%x %X", $details['validity']['notbefore']->getTimestamp())) .
sprintf(" %s: %s\n", Horde_Crypt_Translation::t("Not After"), strftime("%x %X", $details['validity']['notafter']->getTimestamp())) .
"\n";
/* X509v3 extensions */
if (!empty($details['extensions'])) {
$text .= "<strong>" . Horde_Crypt_Translation::t("X509v3 extensions") . ":</strong>\n";
foreach ($details['extensions'] as $key => $value) {
$value = htmlspecialchars(trim($this->_implodeValues($value, 6)));
$text .= isset($fieldnames[$key])
? sprintf(" %s:\n %s\n", htmlspecialchars($fieldnames[$key]), $value)
: sprintf(" *%s:\n %s\n", htmlspecialchars($key), $value);
}
$text .= "\n";
}
/* Certificate Details */
$text .= "<strong>" . Horde_Crypt_Translation::t("Certificate Details") . ":</strong>\n" .
sprintf(" %s: %d\n", Horde_Crypt_Translation::t("Version"), $details['version']) .
sprintf(" %s: %d\n", Horde_Crypt_Translation::t("Serial Number"), $details['serialNumber']);
return $text . "\n</pre>";
}
/**
* Formats a multi-value cert field.
*
* @param array|string $value A cert field value.
* @param integer $indent The indention level.
*
* @return string The formatted cert field value(s).
*/
protected function _implodeValues($value, $indent = 4)
{
if (is_array($value)) {
$value = "\n" . str_repeat(' ', $indent)
. implode("\n" . str_repeat(' ', $indent), $value);
}
return $value;
}
/**
* Extract the contents of a PEM format certificate to an array.
*
* @param string $cert PEM format certificate.
*
* @return array All extractable information about the certificate.
*/
public function parseCert($cert)
{
$data = openssl_x509_parse($cert, false);
if (!$data) {
throw new Horde_Crypt_Exception(sprintf(Horde_Crypt_Translation::t("Error parsing S/MIME certficate: %s"), openssl_error_string()));
}
$details = array(
'extensions' => $data['extensions'],
'issuer' => $data['issuer'],
'serialNumber' => $data['serialNumber'],
'subject' => $data['subject'],
'validity' => array(
'notafter' => new DateTime('@' . $data['validTo_time_t']),
'notbefore' => new DateTime('@' . $data['validFrom_time_t'])
),
'version' => $data['version']
);
// Add additional fields for BC purposes.
$details['certificate'] = $details;
$bc_changes = array(
'emailAddress' => 'Email',
'commonName' => 'CommonName',
'organizationName' => 'Organisation',
'organizationalUnitName' => 'OrganisationalUnit',
'countryName' => 'Country',
'stateOrProvinceName' => 'StateOrProvince',
'localityName' => 'Location',
'streetAddress' => 'StreetAddress',
'telephoneNumber' => 'TelephoneNumber',
'surname' => 'Surname',
'givenName' => 'GivenName'
);
foreach (array('issuer', 'subject') as $val) {
foreach (array_keys($details[$val]) as $key) {
if (isset($bc_changes[$key])) {
$details['certificate'][$val][$bc_changes[$key]] = $details[$val][$key];
unset($details['certificate'][$val][$key]);
}
}
}
return $details;
}
/**
* Decrypt an S/MIME signed message using a public key.
*
* @param string $text The text to be verified.
* @param array $params The parameters needed for verification.
*
* @return string The verification message.
* @throws Horde_Crypt_Exception
*/
protected function _decryptSignature($text, $params)
{
throw new Horde_Crypt_Exception('_decryptSignature() ' . Horde_Crypt_Translation::t("not yet implemented"));
}
/**
* Check for the presence of the OpenSSL extension to PHP.
*
* @throws Horde_Crypt_Exception
*/
public function checkForOpenSSL()
{
if (!Horde_Util::extensionExists('openssl')) {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("The openssl module is required for the Horde_Crypt_Smime:: class."));
}
}
/**
* Extract the email address from a public key.
*
* @param string $key The public key.
*
* @return mixed Returns the first email address found, or null if
* there are none.
*/
public function getEmailFromKey($key)
{
$key_info = openssl_x509_parse($key);
if (!is_array($key_info)) {
return null;
}
if (isset($key_info['subject'])) {
if (isset($key_info['subject']['Email'])) {
return $key_info['subject']['Email'];
} elseif (isset($key_info['subject']['emailAddress'])) {
return $key_info['subject']['emailAddress'];
}
}
// Check subjectAltName per http://www.ietf.org/rfc/rfc3850.txt
if (isset($key_info['extensions']['subjectAltName'])) {
$names = preg_split('/\s*,\s*/', $key_info['extensions']['subjectAltName'], -1, PREG_SPLIT_NO_EMPTY);
foreach ($names as $name) {
if (strpos($name, ':') === false) {
continue;
}
list($kind, $value) = explode(':', $name, 2);
if (Horde_String::lower($kind) == 'email') {
return $value;
}
}
}
return null;
}
/**
* Convert a PKCS 12 encrypted certificate package into a private key,
* public key, and any additional keys.
*
* @param string $pkcs12 The PKCS 12 data.
* @param array $params The parameters needed for parsing.
* <pre>
* Parameters:
* ===========
* 'sslpath' => The path to the OpenSSL binary. (REQUIRED)
* 'password' => The password to use to decrypt the data. (Optional)
* 'newpassword' => The password to use to encrypt the private key.
* (Optional)
* </pre>
*
* @return stdClass An object.
* 'private' - The private key in PEM format.
* 'public' - The public key in PEM format.
* 'certs' - An array of additional certs.
* @throws Horde_Crypt_Exception
*/
public function parsePKCS12Data($pkcs12, $params)
{
/* Check for availability of OpenSSL PHP extension. */
$this->checkForOpenSSL();
if (!isset($params['sslpath'])) {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("No path to the OpenSSL binary provided. The OpenSSL binary is necessary to work with PKCS 12 data."));
}
$sslpath = escapeshellcmd($params['sslpath']);
/* Create temp files for input/output. */
$input = $this->_createTempFile('horde-smime');
$output = $this->_createTempFile('horde-smime');
$ob = new stdClass;
/* Write text to file */
file_put_contents($input, $pkcs12);
unset($pkcs12);
/* Extract the private key from the file first. */
$cmdline = $sslpath . ' pkcs12 -in ' . $input . ' -out ' . $output . ' -nocerts';
if (isset($params['password'])) {
$cmdline .= ' -passin stdin';
if (!empty($params['newpassword'])) {
$cmdline .= ' -passout stdin';
} else {
$cmdline .= ' -nodes';
}
} else {
$cmdline .= ' -nodes';
}
if ($fd = popen($cmdline, 'w')) {
fwrite($fd, $params['password'] . "\n");
if (!empty($params['newpassword'])) {
fwrite($fd, $params['newpassword'] . "\n");
}
pclose($fd);
} else {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("Error while talking to smime binary."));
}
$ob->private = trim(file_get_contents($output));
if (empty($ob->private)) {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("Password incorrect"));
}
/* Extract the client public key next. */
$cmdline = $sslpath . ' pkcs12 -in ' . $input . ' -out ' . $output . ' -nokeys -clcerts';
if (isset($params['password'])) {
$cmdline .= ' -passin stdin';
}
if ($fd = popen($cmdline, 'w')) {
fwrite($fd, $params['password'] . "\n");
pclose($fd);
} else {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("Error while talking to smime binary."));
}
$ob->public = trim(file_get_contents($output));
/* Extract the CA public key next. */
$cmdline = $sslpath . ' pkcs12 -in ' . $input . ' -out ' . $output . ' -nokeys -cacerts';
if (isset($params['password'])) {
$cmdline .= ' -passin stdin';
}
if ($fd = popen($cmdline, 'w')) {
fwrite($fd, $params['password'] . "\n");
pclose($fd);
} else {
throw new Horde_Crypt_Exception(Horde_Crypt_Translation::t("Error while talking to smime binary."));
}
$ob->certs = trim(file_get_contents($output));
return $ob;
}
/**
* The Content-Type parameters PHP's openssl_pkcs7_* functions return are
* deprecated. Fix these headers to the correct ones (see RFC 2311).
*
* @param string $text The PKCS7 data.
* @param string $type Is this 'message' or 'signature' data?
*
* @return string The PKCS7 data with the correct Content-Type parameter.
*/
protected function _fixContentType($text, $type)
{
if ($type == 'message') {
$from = 'application/x-pkcs7-mime';
$to = 'application/pkcs7-mime';
} else {
$from = 'application/x-pkcs7-signature';
$to = 'application/pkcs7-signature';
}
return str_replace('Content-Type: ' . $from, 'Content-Type: ' . $to, $text);
}
}
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