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-rw-r--r--vendor/composer/ca-bundle/src/CaBundle.php784
1 files changed, 431 insertions, 353 deletions
diff --git a/vendor/composer/ca-bundle/src/CaBundle.php b/vendor/composer/ca-bundle/src/CaBundle.php
index 0109ba0..a805b9b 100644
--- a/vendor/composer/ca-bundle/src/CaBundle.php
+++ b/vendor/composer/ca-bundle/src/CaBundle.php
@@ -1,353 +1,431 @@
-<?php
-
-/*
- * This file is part of composer/ca-bundle.
- *
- * (c) Composer <https://github.com/composer>
- *
- * For the full copyright and license information, please view
- * the LICENSE file that was distributed with this source code.
- */
-
-namespace Composer\CaBundle;
-
-use Psr\Log\LoggerInterface;
-use Symfony\Component\Process\PhpProcess;
-
-/**
- * @author Chris Smith <chris@cs278.org>
- * @author Jordi Boggiano <j.boggiano@seld.be>
- */
-class CaBundle
-{
- /** @var string|null */
- private static $caPath;
- /** @var array<string, bool> */
- private static $caFileValidity = array();
- /** @var bool|null */
- private static $useOpensslParse;
-
- /**
- * Returns the system CA bundle path, or a path to the bundled one
- *
- * This method was adapted from Sslurp.
- * https://github.com/EvanDotPro/Sslurp
- *
- * (c) Evan Coury <me@evancoury.com>
- *
- * For the full copyright and license information, please see below:
- *
- * Copyright (c) 2013, Evan Coury
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * @param LoggerInterface $logger optional logger for information about which CA files were loaded
- * @return string path to a CA bundle file or directory
- */
- public static function getSystemCaRootBundlePath(LoggerInterface $logger = null)
- {
- if (self::$caPath !== null) {
- return self::$caPath;
- }
- $caBundlePaths = array();
-
- // If SSL_CERT_FILE env variable points to a valid certificate/bundle, use that.
- // This mimics how OpenSSL uses the SSL_CERT_FILE env variable.
- $caBundlePaths[] = self::getEnvVariable('SSL_CERT_FILE');
-
- // If SSL_CERT_DIR env variable points to a valid certificate/bundle, use that.
- // This mimics how OpenSSL uses the SSL_CERT_FILE env variable.
- $caBundlePaths[] = self::getEnvVariable('SSL_CERT_DIR');
-
- $caBundlePaths[] = ini_get('openssl.cafile');
- $caBundlePaths[] = ini_get('openssl.capath');
-
- $otherLocations = array(
- '/etc/pki/tls/certs/ca-bundle.crt', // Fedora, RHEL, CentOS (ca-certificates package)
- '/etc/ssl/certs/ca-certificates.crt', // Debian, Ubuntu, Gentoo, Arch Linux (ca-certificates package)
- '/etc/ssl/ca-bundle.pem', // SUSE, openSUSE (ca-certificates package)
- '/usr/local/share/certs/ca-root-nss.crt', // FreeBSD (ca_root_nss_package)
- '/usr/ssl/certs/ca-bundle.crt', // Cygwin
- '/opt/local/share/curl/curl-ca-bundle.crt', // OS X macports, curl-ca-bundle package
- '/usr/local/share/curl/curl-ca-bundle.crt', // Default cURL CA bunde path (without --with-ca-bundle option)
- '/usr/share/ssl/certs/ca-bundle.crt', // Really old RedHat?
- '/etc/ssl/cert.pem', // OpenBSD
- '/usr/local/etc/ssl/cert.pem', // FreeBSD 10.x
- '/usr/local/etc/openssl/cert.pem', // OS X homebrew, openssl package
- '/usr/local/etc/openssl@1.1/cert.pem', // OS X homebrew, openssl@1.1 package
- );
-
- foreach($otherLocations as $location) {
- $otherLocations[] = dirname($location);
- }
-
- $caBundlePaths = array_merge($caBundlePaths, $otherLocations);
-
- foreach ($caBundlePaths as $caBundle) {
- if ($caBundle && self::caFileUsable($caBundle, $logger)) {
- return self::$caPath = $caBundle;
- }
-
- if ($caBundle && self::caDirUsable($caBundle)) {
- return self::$caPath = $caBundle;
- }
- }
-
- return self::$caPath = static::getBundledCaBundlePath(); // Bundled CA file, last resort
- }
-
- /**
- * Returns the path to the bundled CA file
- *
- * In case you don't want to trust the user or the system, you can use this directly
- *
- * @return string path to a CA bundle file
- */
- public static function getBundledCaBundlePath()
- {
- $caBundleFile = __DIR__.'/../res/cacert.pem';
-
- // cURL does not understand 'phar://' paths
- // see https://github.com/composer/ca-bundle/issues/10
- if (0 === strpos($caBundleFile, 'phar://')) {
- $tempCaBundleFile = tempnam(sys_get_temp_dir(), 'openssl-ca-bundle-');
- if (false === $tempCaBundleFile) {
- throw new \RuntimeException('Could not create a temporary file to store the bundled CA file');
- }
-
- file_put_contents(
- $tempCaBundleFile,
- file_get_contents($caBundleFile)
- );
-
- register_shutdown_function(function() use ($tempCaBundleFile) {
- @unlink($tempCaBundleFile);
- });
-
- $caBundleFile = $tempCaBundleFile;
- }
-
- return $caBundleFile;
- }
-
- /**
- * Validates a CA file using opensl_x509_parse only if it is safe to use
- *
- * @param string $filename
- * @param LoggerInterface $logger optional logger for information about which CA files were loaded
- *
- * @return bool
- */
- public static function validateCaFile($filename, LoggerInterface $logger = null)
- {
- static $warned = false;
-
- if (isset(self::$caFileValidity[$filename])) {
- return self::$caFileValidity[$filename];
- }
-
- $contents = file_get_contents($filename);
-
- // assume the CA is valid if php is vulnerable to
- // https://www.sektioneins.de/advisories/advisory-012013-php-openssl_x509_parse-memory-corruption-vulnerability.html
- if (!static::isOpensslParseSafe()) {
- if (!$warned && $logger) {
- $logger->warning(sprintf(
- 'Your version of PHP, %s, is affected by CVE-2013-6420 and cannot safely perform certificate validation, we strongly suggest you upgrade.',
- PHP_VERSION
- ));
- $warned = true;
- }
-
- $isValid = !empty($contents);
- } elseif (is_string($contents) && strlen($contents) > 0) {
- $contents = preg_replace("/^(\\-+(?:BEGIN|END))\\s+TRUSTED\\s+(CERTIFICATE\\-+)\$/m", '$1 $2', $contents);
- if (null === $contents) {
- // regex extraction failed
- $isValid = false;
- } else {
- $isValid = (bool) openssl_x509_parse($contents);
- }
- } else {
- $isValid = false;
- }
-
- if ($logger) {
- $logger->debug('Checked CA file '.realpath($filename).': '.($isValid ? 'valid' : 'invalid'));
- }
-
- return self::$caFileValidity[$filename] = $isValid;
- }
-
- /**
- * Test if it is safe to use the PHP function openssl_x509_parse().
- *
- * This checks if OpenSSL extensions is vulnerable to remote code execution
- * via the exploit documented as CVE-2013-6420.
- *
- * @return bool
- */
- public static function isOpensslParseSafe()
- {
- if (null !== self::$useOpensslParse) {
- return self::$useOpensslParse;
- }
-
- if (PHP_VERSION_ID >= 50600) {
- return self::$useOpensslParse = true;
- }
-
- // Vulnerable:
- // PHP 5.3.0 - PHP 5.3.27
- // PHP 5.4.0 - PHP 5.4.22
- // PHP 5.5.0 - PHP 5.5.6
- if (
- (PHP_VERSION_ID < 50400 && PHP_VERSION_ID >= 50328)
- || (PHP_VERSION_ID < 50500 && PHP_VERSION_ID >= 50423)
- || PHP_VERSION_ID >= 50507
- ) {
- // This version of PHP has the fix for CVE-2013-6420 applied.
- return self::$useOpensslParse = true;
- }
-
- if (defined('PHP_WINDOWS_VERSION_BUILD')) {
- // Windows is probably insecure in this case.
- return self::$useOpensslParse = false;
- }
-
- $compareDistroVersionPrefix = function ($prefix, $fixedVersion) {
- $regex = '{^'.preg_quote($prefix).'([0-9]+)$}';
-
- if (preg_match($regex, PHP_VERSION, $m)) {
- return ((int) $m[1]) >= $fixedVersion;
- }
-
- return false;
- };
-
- // Hard coded list of PHP distributions with the fix backported.
- if (
- $compareDistroVersionPrefix('5.3.3-7+squeeze', 18) // Debian 6 (Squeeze)
- || $compareDistroVersionPrefix('5.4.4-14+deb7u', 7) // Debian 7 (Wheezy)
- || $compareDistroVersionPrefix('5.3.10-1ubuntu3.', 9) // Ubuntu 12.04 (Precise)
- ) {
- return self::$useOpensslParse = true;
- }
-
- // Symfony Process component is missing so we assume it is unsafe at this point
- if (!class_exists('Symfony\Component\Process\PhpProcess')) {
- return self::$useOpensslParse = false;
- }
-
- // This is where things get crazy, because distros backport security
- // fixes the chances are on NIX systems the fix has been applied but
- // it's not possible to verify that from the PHP version.
- //
- // To verify exec a new PHP process and run the issue testcase with
- // known safe input that replicates the bug.
-
- // Based on testcase in https://github.com/php/php-src/commit/c1224573c773b6845e83505f717fbf820fc18415
- // changes in https://github.com/php/php-src/commit/76a7fd893b7d6101300cc656058704a73254d593
- $cert = 'LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUVwRENDQTR5Z0F3SUJBZ0lKQUp6dThyNnU2ZUJjTUEwR0NTcUdTSWIzRFFFQkJRVUFNSUhETVFzd0NRWUQKVlFRR0V3SkVSVEVjTUJvR0ExVUVDQXdUVG05eVpISm9aV2x1TFZkbGMzUm1ZV3hsYmpFUU1BNEdBMVVFQnd3SApTOE9Ed3Jac2JqRVVNQklHQTFVRUNnd0xVMlZyZEdsdmJrVnBibk14SHpBZEJnTlZCQXNNRmsxaGJHbGphVzkxCmN5QkRaWEowSUZObFkzUnBiMjR4SVRBZkJnTlZCQU1NR0cxaGJHbGphVzkxY3k1elpXdDBhVzl1WldsdWN5NWsKWlRFcU1DZ0dDU3FHU0liM0RRRUpBUlliYzNSbFptRnVMbVZ6YzJWeVFITmxhM1JwYjI1bGFXNXpMbVJsTUhVWQpaREU1TnpBd01UQXhNREF3TURBd1dnQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBCkFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUEKQUFBQUFBQVhEVEUwTVRFeU9ERXhNemt6TlZvd2djTXhDekFKQmdOVkJBWVRBa1JGTVJ3d0dnWURWUVFJREJOTwpiM0prY21obGFXNHRWMlZ6ZEdaaGJHVnVNUkF3RGdZRFZRUUhEQWRMdzRQQ3RteHVNUlF3RWdZRFZRUUtEQXRUClpXdDBhVzl1UldsdWN6RWZNQjBHQTFVRUN3d1dUV0ZzYVdOcGIzVnpJRU5sY25RZ1UyVmpkR2x2YmpFaE1COEcKQTFVRUF3d1liV0ZzYVdOcGIzVnpMbk5sYTNScGIyNWxhVzV6TG1SbE1Tb3dLQVlKS29aSWh2Y05BUWtCRmh0egpkR1ZtWVc0dVpYTnpaWEpBYzJWcmRHbHZibVZwYm5NdVpHVXdnZ0VpTUEwR0NTcUdTSWIzRFFFQkFRVUFBNElCCkR3QXdnZ0VLQW9JQkFRRERBZjNobDdKWTBYY0ZuaXlFSnBTU0RxbjBPcUJyNlFQNjV1c0pQUnQvOFBhRG9xQnUKd0VZVC9OYSs2ZnNnUGpDMHVLOURaZ1dnMnRIV1dvYW5TYmxBTW96NVBINlorUzRTSFJaN2UyZERJalBqZGhqaAowbUxnMlVNTzV5cDBWNzk3R2dzOWxOdDZKUmZIODFNTjJvYlhXczROdHp0TE11RDZlZ3FwcjhkRGJyMzRhT3M4CnBrZHVpNVVhd1Raa3N5NXBMUEhxNWNNaEZHbTA2djY1Q0xvMFYyUGQ5K0tBb2tQclBjTjVLTEtlYno3bUxwazYKU01lRVhPS1A0aWRFcXh5UTdPN2ZCdUhNZWRzUWh1K3ByWTNzaTNCVXlLZlF0UDVDWm5YMmJwMHdLSHhYMTJEWAoxbmZGSXQ5RGJHdkhUY3lPdU4rblpMUEJtM3ZXeG50eUlJdlZBZ01CQUFHalFqQkFNQWtHQTFVZEV3UUNNQUF3CkVRWUpZSVpJQVliNFFnRUJCQVFEQWdlQU1Bc0dBMVVkRHdRRUF3SUZvREFUQmdOVkhTVUVEREFLQmdnckJnRUYKQlFjREFqQU5CZ2txaGtpRzl3MEJBUVVGQUFPQ0FRRUFHMGZaWVlDVGJkajFYWWMrMVNub2FQUit2SThDOENhRAo4KzBVWWhkbnlVNGdnYTBCQWNEclk5ZTk0ZUVBdTZacXljRjZGakxxWFhkQWJvcHBXb2NyNlQ2R0QxeDMzQ2tsClZBcnpHL0t4UW9oR0QySmVxa2hJTWxEb214SE83a2EzOStPYThpMnZXTFZ5alU4QVp2V01BcnVIYTRFRU55RzcKbFcyQWFnYUZLRkNyOVRuWFRmcmR4R1ZFYnY3S1ZRNmJkaGc1cDVTanBXSDErTXEwM3VSM1pYUEJZZHlWODMxOQpvMGxWajFLRkkyRENML2xpV2lzSlJvb2YrMWNSMzVDdGQwd1lCY3BCNlRac2xNY09QbDc2ZHdLd0pnZUpvMlFnClpzZm1jMnZDMS9xT2xOdU5xLzBUenprVkd2OEVUVDNDZ2FVK1VYZTRYT1Z2a2NjZWJKbjJkZz09Ci0tLS0tRU5EIENFUlRJRklDQVRFLS0tLS0K';
- $script = <<<'EOT'
-
-error_reporting(-1);
-$info = openssl_x509_parse(base64_decode('%s'));
-var_dump(PHP_VERSION, $info['issuer']['emailAddress'], $info['validFrom_time_t']);
-
-EOT;
- $script = '<'."?php\n".sprintf($script, $cert);
-
- try {
- $process = new PhpProcess($script);
- $process->mustRun();
- } catch (\Exception $e) {
- // In the case of any exceptions just accept it is not possible to
- // determine the safety of openssl_x509_parse and bail out.
- return self::$useOpensslParse = false;
- }
-
- $output = preg_split('{\r?\n}', trim($process->getOutput()));
- $errorOutput = trim($process->getErrorOutput());
-
- if (
- is_array($output)
- && count($output) === 3
- && $output[0] === sprintf('string(%d) "%s"', strlen(PHP_VERSION), PHP_VERSION)
- && $output[1] === 'string(27) "stefan.esser@sektioneins.de"'
- && $output[2] === 'int(-1)'
- && preg_match('{openssl_x509_parse\(\): illegal (?:ASN1 data type for|length in) timestamp in - on line \d+}', $errorOutput)
- ) {
- // This PHP has the fix backported probably by a distro security team.
- return self::$useOpensslParse = true;
- }
-
- return self::$useOpensslParse = false;
- }
-
- /**
- * Resets the static caches
- * @return void
- */
- public static function reset()
- {
- self::$caFileValidity = array();
- self::$caPath = null;
- self::$useOpensslParse = null;
- }
-
- /**
- * @param string $name
- * @return string|false
- */
- private static function getEnvVariable($name)
- {
- if (isset($_SERVER[$name])) {
- return (string) $_SERVER[$name];
- }
-
- if (PHP_SAPI === 'cli' && ($value = getenv($name)) !== false && $value !== null) {
- return (string) $value;
- }
-
- return false;
- }
-
- /**
- * @param string|false $certFile
- * @return bool
- */
- private static function caFileUsable($certFile, LoggerInterface $logger = null)
- {
- return $certFile && @is_file($certFile) && @is_readable($certFile) && static::validateCaFile($certFile, $logger);
- }
-
- /**
- * @param string|false $certDir
- * @return bool
- */
- private static function caDirUsable($certDir)
- {
- return $certDir && @is_dir($certDir) && @is_readable($certDir) && glob($certDir . '/*');
- }
-}
+<?php
+
+/*
+ * This file is part of composer/ca-bundle.
+ *
+ * (c) Composer <https://github.com/composer>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Composer\CaBundle;
+
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Process\PhpProcess;
+
+/**
+ * @author Chris Smith <chris@cs278.org>
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class CaBundle
+{
+ /** @var string|null */
+ private static $caPath;
+ /** @var array<string, bool> */
+ private static $caFileValidity = array();
+ /** @var bool|null */
+ private static $useOpensslParse;
+
+ /**
+ * Returns the system CA bundle path, or a path to the bundled one
+ *
+ * This method was adapted from Sslurp.
+ * https://github.com/EvanDotPro/Sslurp
+ *
+ * (c) Evan Coury <me@evancoury.com>
+ *
+ * For the full copyright and license information, please see below:
+ *
+ * Copyright (c) 2013, Evan Coury
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @param LoggerInterface $logger optional logger for information about which CA files were loaded
+ * @return string path to a CA bundle file or directory
+ */
+ public static function getSystemCaRootBundlePath(LoggerInterface $logger = null)
+ {
+ if (self::$caPath !== null) {
+ return self::$caPath;
+ }
+ $caBundlePaths = array();
+
+ // If SSL_CERT_FILE env variable points to a valid certificate/bundle, use that.
+ // This mimics how OpenSSL uses the SSL_CERT_FILE env variable.
+ $caBundlePaths[] = self::getEnvVariable('SSL_CERT_FILE');
+
+ // If SSL_CERT_DIR env variable points to a valid certificate/bundle, use that.
+ // This mimics how OpenSSL uses the SSL_CERT_FILE env variable.
+ $caBundlePaths[] = self::getEnvVariable('SSL_CERT_DIR');
+
+ $caBundlePaths[] = ini_get('openssl.cafile');
+ $caBundlePaths[] = ini_get('openssl.capath');
+
+ $otherLocations = array(
+ '/etc/pki/tls/certs/ca-bundle.crt', // Fedora, RHEL, CentOS (ca-certificates package)
+ '/etc/ssl/certs/ca-certificates.crt', // Debian, Ubuntu, Gentoo, Arch Linux (ca-certificates package)
+ '/etc/ssl/ca-bundle.pem', // SUSE, openSUSE (ca-certificates package)
+ '/usr/local/share/certs/ca-root-nss.crt', // FreeBSD (ca_root_nss_package)
+ '/usr/ssl/certs/ca-bundle.crt', // Cygwin
+ '/opt/local/share/curl/curl-ca-bundle.crt', // OS X macports, curl-ca-bundle package
+ '/usr/local/share/curl/curl-ca-bundle.crt', // Default cURL CA bunde path (without --with-ca-bundle option)
+ '/usr/share/ssl/certs/ca-bundle.crt', // Really old RedHat?
+ '/etc/ssl/cert.pem', // OpenBSD
+ '/usr/local/etc/ssl/cert.pem', // FreeBSD 10.x
+ '/usr/local/etc/openssl/cert.pem', // OS X homebrew, openssl package
+ '/usr/local/etc/openssl@1.1/cert.pem', // OS X homebrew, openssl@1.1 package
+ );
+
+ foreach($otherLocations as $location) {
+ $otherLocations[] = dirname($location);
+ }
+
+ $caBundlePaths = array_merge($caBundlePaths, $otherLocations);
+
+ foreach ($caBundlePaths as $caBundle) {
+ if ($caBundle && self::caFileUsable($caBundle, $logger)) {
+ return self::$caPath = $caBundle;
+ }
+
+ if ($caBundle && self::caDirUsable($caBundle, $logger)) {
+ return self::$caPath = $caBundle;
+ }
+ }
+
+ return self::$caPath = static::getBundledCaBundlePath(); // Bundled CA file, last resort
+ }
+
+ /**
+ * Returns the path to the bundled CA file
+ *
+ * In case you don't want to trust the user or the system, you can use this directly
+ *
+ * @return string path to a CA bundle file
+ */
+ public static function getBundledCaBundlePath()
+ {
+ $caBundleFile = __DIR__.'/../res/cacert.pem';
+
+ // cURL does not understand 'phar://' paths
+ // see https://github.com/composer/ca-bundle/issues/10
+ if (0 === strpos($caBundleFile, 'phar://')) {
+ $tempCaBundleFile = tempnam(sys_get_temp_dir(), 'openssl-ca-bundle-');
+ if (false === $tempCaBundleFile) {
+ throw new \RuntimeException('Could not create a temporary file to store the bundled CA file');
+ }
+
+ file_put_contents(
+ $tempCaBundleFile,
+ file_get_contents($caBundleFile)
+ );
+
+ register_shutdown_function(function() use ($tempCaBundleFile) {
+ @unlink($tempCaBundleFile);
+ });
+
+ $caBundleFile = $tempCaBundleFile;
+ }
+
+ return $caBundleFile;
+ }
+
+ /**
+ * Validates a CA file using opensl_x509_parse only if it is safe to use
+ *
+ * @param string $filename
+ * @param LoggerInterface $logger optional logger for information about which CA files were loaded
+ *
+ * @return bool
+ */
+ public static function validateCaFile($filename, LoggerInterface $logger = null)
+ {
+ static $warned = false;
+
+ if (isset(self::$caFileValidity[$filename])) {
+ return self::$caFileValidity[$filename];
+ }
+
+ $contents = file_get_contents($filename);
+
+ // assume the CA is valid if php is vulnerable to
+ // https://www.sektioneins.de/advisories/advisory-012013-php-openssl_x509_parse-memory-corruption-vulnerability.html
+ if (!static::isOpensslParseSafe()) {
+ if (!$warned && $logger) {
+ $logger->warning(sprintf(
+ 'Your version of PHP, %s, is affected by CVE-2013-6420 and cannot safely perform certificate validation, we strongly suggest you upgrade.',
+ PHP_VERSION
+ ));
+ $warned = true;
+ }
+
+ $isValid = !empty($contents);
+ } elseif (is_string($contents) && strlen($contents) > 0) {
+ $contents = preg_replace("/^(\\-+(?:BEGIN|END))\\s+TRUSTED\\s+(CERTIFICATE\\-+)\$/m", '$1 $2', $contents);
+ if (null === $contents) {
+ // regex extraction failed
+ $isValid = false;
+ } else {
+ $isValid = (bool) openssl_x509_parse($contents);
+ }
+ } else {
+ $isValid = false;
+ }
+
+ if ($logger) {
+ $logger->debug('Checked CA file '.realpath($filename).': '.($isValid ? 'valid' : 'invalid'));
+ }
+
+ return self::$caFileValidity[$filename] = $isValid;
+ }
+
+ /**
+ * Test if it is safe to use the PHP function openssl_x509_parse().
+ *
+ * This checks if OpenSSL extensions is vulnerable to remote code execution
+ * via the exploit documented as CVE-2013-6420.
+ *
+ * @return bool
+ */
+ public static function isOpensslParseSafe()
+ {
+ if (null !== self::$useOpensslParse) {
+ return self::$useOpensslParse;
+ }
+
+ if (PHP_VERSION_ID >= 50600) {
+ return self::$useOpensslParse = true;
+ }
+
+ // Vulnerable:
+ // PHP 5.3.0 - PHP 5.3.27
+ // PHP 5.4.0 - PHP 5.4.22
+ // PHP 5.5.0 - PHP 5.5.6
+ if (
+ (PHP_VERSION_ID < 50400 && PHP_VERSION_ID >= 50328)
+ || (PHP_VERSION_ID < 50500 && PHP_VERSION_ID >= 50423)
+ || PHP_VERSION_ID >= 50507
+ ) {
+ // This version of PHP has the fix for CVE-2013-6420 applied.
+ return self::$useOpensslParse = true;
+ }
+
+ if (defined('PHP_WINDOWS_VERSION_BUILD')) {
+ // Windows is probably insecure in this case.
+ return self::$useOpensslParse = false;
+ }
+
+ $compareDistroVersionPrefix = function ($prefix, $fixedVersion) {
+ $regex = '{^'.preg_quote($prefix).'([0-9]+)$}';
+
+ if (preg_match($regex, PHP_VERSION, $m)) {
+ return ((int) $m[1]) >= $fixedVersion;
+ }
+
+ return false;
+ };
+
+ // Hard coded list of PHP distributions with the fix backported.
+ if (
+ $compareDistroVersionPrefix('5.3.3-7+squeeze', 18) // Debian 6 (Squeeze)
+ || $compareDistroVersionPrefix('5.4.4-14+deb7u', 7) // Debian 7 (Wheezy)
+ || $compareDistroVersionPrefix('5.3.10-1ubuntu3.', 9) // Ubuntu 12.04 (Precise)
+ ) {
+ return self::$useOpensslParse = true;
+ }
+
+ // Symfony Process component is missing so we assume it is unsafe at this point
+ if (!class_exists('Symfony\Component\Process\PhpProcess')) {
+ return self::$useOpensslParse = false;
+ }
+
+ // This is where things get crazy, because distros backport security
+ // fixes the chances are on NIX systems the fix has been applied but
+ // it's not possible to verify that from the PHP version.
+ //
+ // To verify exec a new PHP process and run the issue testcase with
+ // known safe input that replicates the bug.
+
+ // Based on testcase in https://github.com/php/php-src/commit/c1224573c773b6845e83505f717fbf820fc18415
+ // changes in https://github.com/php/php-src/commit/76a7fd893b7d6101300cc656058704a73254d593
+ $cert = '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';
+ $script = <<<'EOT'
+
+error_reporting(-1);
+$info = openssl_x509_parse(base64_decode('%s'));
+var_dump(PHP_VERSION, $info['issuer']['emailAddress'], $info['validFrom_time_t']);
+
+EOT;
+ $script = '<'."?php\n".sprintf($script, $cert);
+
+ try {
+ $process = new PhpProcess($script);
+ $process->mustRun();
+ } catch (\Exception $e) {
+ // In the case of any exceptions just accept it is not possible to
+ // determine the safety of openssl_x509_parse and bail out.
+ return self::$useOpensslParse = false;
+ }
+
+ $output = preg_split('{\r?\n}', trim($process->getOutput()));
+ $errorOutput = trim($process->getErrorOutput());
+
+ if (
+ is_array($output)
+ && count($output) === 3
+ && $output[0] === sprintf('string(%d) "%s"', strlen(PHP_VERSION), PHP_VERSION)
+ && $output[1] === 'string(27) "stefan.esser@sektioneins.de"'
+ && $output[2] === 'int(-1)'
+ && preg_match('{openssl_x509_parse\(\): illegal (?:ASN1 data type for|length in) timestamp in - on line \d+}', $errorOutput)
+ ) {
+ // This PHP has the fix backported probably by a distro security team.
+ return self::$useOpensslParse = true;
+ }
+
+ return self::$useOpensslParse = false;
+ }
+
+ /**
+ * Resets the static caches
+ * @return void
+ */
+ public static function reset()
+ {
+ self::$caFileValidity = array();
+ self::$caPath = null;
+ self::$useOpensslParse = null;
+ }
+
+ /**
+ * @param string $name
+ * @return string|false
+ */
+ private static function getEnvVariable($name)
+ {
+ if (isset($_SERVER[$name])) {
+ return (string) $_SERVER[$name];
+ }
+
+ if (PHP_SAPI === 'cli' && ($value = getenv($name)) !== false && $value !== null) {
+ return (string) $value;
+ }
+
+ return false;
+ }
+
+ /**
+ * @param string|false $certFile
+ * @param LoggerInterface|null $logger
+ * @return bool
+ */
+ private static function caFileUsable($certFile, LoggerInterface $logger = null)
+ {
+ return $certFile
+ && static::isFile($certFile, $logger)
+ && static::isReadable($certFile, $logger)
+ && static::validateCaFile($certFile, $logger);
+ }
+
+ /**
+ * @param string|false $certDir
+ * @param LoggerInterface|null $logger
+ * @return bool
+ */
+ private static function caDirUsable($certDir, LoggerInterface $logger = null)
+ {
+ return $certDir
+ && static::isDir($certDir, $logger)
+ && static::isReadable($certDir, $logger)
+ && static::glob($certDir . '/*', $logger);
+ }
+
+ /**
+ * @param string $certFile
+ * @param LoggerInterface|null $logger
+ * @return bool
+ */
+ private static function isFile($certFile, LoggerInterface $logger = null)
+ {
+ $isFile = @is_file($certFile);
+ if (!$isFile && $logger) {
+ $logger->debug(sprintf('Checked CA file %s does not exist or it is not a file.', $certFile));
+ }
+
+ return $isFile;
+ }
+
+ /**
+ * @param string $certDir
+ * @param LoggerInterface|null $logger
+ * @return bool
+ */
+ private static function isDir($certDir, LoggerInterface $logger = null)
+ {
+ $isDir = @is_dir($certDir);
+ if (!$isDir && $logger) {
+ $logger->debug(sprintf('Checked directory %s does not exist or it is not a directory.', $certDir));
+ }
+
+ return $isDir;
+ }
+
+ /**
+ * @param string $certFileOrDir
+ * @param LoggerInterface|null $logger
+ * @return bool
+ */
+ private static function isReadable($certFileOrDir, LoggerInterface $logger = null)
+ {
+ $isReadable = @is_readable($certFileOrDir);
+ if (!$isReadable && $logger) {
+ $logger->debug(sprintf('Checked file or directory %s is not readable.', $certFileOrDir));
+ }
+
+ return $isReadable;
+ }
+
+ /**
+ * @param string $pattern
+ * @param LoggerInterface|null $logger
+ * @return bool
+ */
+ private static function glob($pattern, LoggerInterface $logger = null)
+ {
+ $certs = glob($pattern);
+ if ($certs === false) {
+ if ($logger) {
+ $logger->debug(sprintf("An error occurred while trying to find certificates for pattern: %s", $pattern));
+ }
+ return false;
+ }
+
+ if (count($certs) === 0) {
+ if ($logger) {
+ $logger->debug(sprintf("No CA files found for pattern: %s", $pattern));
+ }
+ return false;
+ }
+
+ return true;
+ }
+}