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Improve password encryption (owncloud) by openssl (#1082)

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RainLoop 2017-10-11 21:27:07 +03:00
parent 90a3d2b62a
commit 6f4b7b8156
1 changed files with 99 additions and 9 deletions
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108
build/owncloud/rainloop-app/lib/RainLoopHelper.php
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@ -63,25 +63,115 @@ class OC_RainLoop_Helper
return $sUrl;
}
/**
* @return boolean
*/
public static function mcryptSupported()
{
return function_exists('mcrypt_encrypt') &&
function_exists('mcrypt_decrypt') &&
defined('MCRYPT_RIJNDAEL_256') &&
defined('MCRYPT_MODE_ECB');
}
/**
* @return string
*/
public static function openSslSupportedMethod()
{
$method = 'AES-256-CBC';
return function_exists('openssl_encrypt') &&
function_exists('openssl_decrypt') &&
function_exists('openssl_random_pseudo_bytes') &&
function_exists('openssl_cipher_iv_length') &&
function_exists('openssl_get_cipher_methods') &&
defined('OPENSSL_RAW_DATA') && defined('OPENSSL_ZERO_PADDING') &&
in_array($method, openssl_get_cipher_methods()) ? $method : '';
}
/**
* @param string $sMethod
* @param string $sPassword
* @param string $sSalt
*
* @return string
*/
public static function encodePasswordSsl($sMethod, $sPassword, $sSalt)
{
$sData = base64_encode($sPassword);
$iv = @openssl_random_pseudo_bytes(openssl_cipher_iv_length($sMethod));
$r = @openssl_encrypt($sData, $sMethod, md5($sSalt), OPENSSL_RAW_DATA, $iv);
return @base64_encode(base64_encode($r).'|'.base64_encode($iv));
}
/**
* @param string $sMethod
* @param string $sPassword
* @param string $sSalt
*
* @return string
*/
public static function decodePasswordSsl($sMethod, $sPassword, $sSalt)
{
$sLine = base64_decode(trim($sPassword));
$aParts = explode('|', $sLine, 2);
if (is_array($aParts) && !empty($aParts[0]) && !empty($aParts[1])) {
$sData = @base64_decode($aParts[0]);
$iv = @base64_decode($aParts[1]);
return @base64_decode(trim(
@openssl_decrypt($sData, $sMethod, md5($sSalt), OPENSSL_RAW_DATA, $iv)
));
}
return '';
}
/**
* @param string $sPassword
* @param string $sSalt
*
* @return string
*/
public static function encodePassword($sPassword, $sSalt)
{
if (function_exists('mcrypt_encrypt') && function_exists('mcrypt_create_iv') && function_exists('mcrypt_get_iv_size') &&
defined('MCRYPT_RIJNDAEL_256') && defined('MCRYPT_MODE_ECB') && defined('MCRYPT_RAND'))
$method = self::openSslSupportedMethod();
if ($method)
{
return @trim(base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, md5($sSalt), base64_encode($sPassword),
MCRYPT_MODE_ECB, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND))));
return self::encodePasswordSsl($method, $sPassword, $sSalt);
}
else if (self::mcryptSupported())
{
return @trim(base64_encode(
@mcrypt_encrypt(MCRYPT_RIJNDAEL_256, md5($sSalt), base64_encode($sPassword), MCRYPT_MODE_ECB)
));
}
return @trim(base64_encode($sPassword));
}
/**
* @param string $sPassword
* @param string $sSalt
*
* @return string
*/
public static function decodePassword($sPassword, $sSalt)
{
if (function_exists('mcrypt_encrypt') && function_exists('mcrypt_create_iv') && function_exists('mcrypt_get_iv_size') &&
defined('MCRYPT_RIJNDAEL_256') && defined('MCRYPT_MODE_ECB') && defined('MCRYPT_RAND'))
$method = self::openSslSupportedMethod();
if ($method)
{
return @base64_decode(trim(@mcrypt_decrypt(MCRYPT_RIJNDAEL_256, md5($sSalt), base64_decode(trim($sPassword)),
MCRYPT_MODE_ECB, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND))));
return self::decodePasswordSsl($method, $sPassword, $sSalt);
}
else if (self::mcryptSupported())
{
return @base64_decode(trim(
@mcrypt_decrypt(MCRYPT_RIJNDAEL_256, md5($sSalt), base64_decode(trim($sPassword)), MCRYPT_MODE_ECB)
));
}
return @base64_decode(trim($sPassword));
@ -236,7 +326,7 @@ class OC_RainLoop_Helper
'ods' => 'application/vnd.oasis.opendocument.spreadsheet',
);
if (0 < strpos($filename, '.'))
if (0 < strpos($filename, '.'))
{
$ext = strtolower(array_pop(explode('.',$filename)));
if (array_key_exists($ext, $mime_types))