* Jordi Boggiano * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ setupEnvironment(); process(is_array($argv) ? $argv : array()); /** * Initializes various values * * @throws RuntimeException If uopz extension prevents exit calls */ function setupEnvironment() { ini_set('display_errors', 1); if (extension_loaded('uopz') && !(ini_get('uopz.disable') || ini_get('uopz.exit'))) { // uopz works at opcode level and disables exit calls if (function_exists('uopz_allow_exit')) { @uopz_allow_exit(true); } else { throw new RuntimeException('The uopz extension ignores exit calls and breaks this installer.'); } } $installer = 'ComposerInstaller'; if (defined('PHP_WINDOWS_VERSION_MAJOR')) { if ($version = getenv('COMPOSERSETUP')) { $installer = sprintf('Composer-Setup.exe/%s', $version); } } define('COMPOSER_INSTALLER', $installer); } /** * Processes the installer */ function process($argv) { // Determine ANSI output from --ansi and --no-ansi flags setUseAnsi($argv); if (in_array('--help', $argv)) { displayHelp(); exit(0); } $check = in_array('--check', $argv); $help = in_array('--help', $argv); $force = in_array('--force', $argv); $quiet = in_array('--quiet', $argv); $channel = 'stable'; if (in_array('--snapshot', $argv)) { $channel = 'snapshot'; } elseif (in_array('--preview', $argv)) { $channel = 'preview'; } elseif (in_array('--1', $argv)) { $channel = '1'; } elseif (in_array('--2', $argv)) { $channel = '2'; } $disableTls = in_array('--disable-tls', $argv); $installDir = getOptValue('--install-dir', $argv, false); $version = getOptValue('--version', $argv, false); $filename = getOptValue('--filename', $argv, 'composer.phar'); $cafile = getOptValue('--cafile', $argv, false); if (!checkParams($installDir, $version, $cafile)) { exit(1); } $ok = checkPlatform($warnings, $quiet, $disableTls, true); if ($check) { // Only show warnings if we haven't output any errors if ($ok) { showWarnings($warnings); showSecurityWarning($disableTls); } exit($ok ? 0 : 1); } if ($ok || $force) { $installer = new Installer($quiet, $disableTls, $cafile); if ($installer->run($version, $installDir, $filename, $channel)) { showWarnings($warnings); showSecurityWarning($disableTls); exit(0); } } exit(1); } /** * Displays the help */ function displayHelp() { echo << $value) { $next = $key + 1; if (0 === strpos($value, $opt)) { if ($optLength === strlen($value) && isset($argv[$next])) { return trim($argv[$next]); } else { return trim(substr($value, $optLength + 1)); } } } return $default; } /** * Checks that user-supplied params are valid * * @param mixed $installDir The required istallation directory * @param mixed $version The required composer version to install * @param mixed $cafile Certificate Authority file * * @return bool True if the supplied params are okay */ function checkParams($installDir, $version, $cafile) { $result = true; if (false !== $installDir && !is_dir($installDir)) { out("The defined install dir ({$installDir}) does not exist.", 'info'); $result = false; } if (false !== $version && 1 !== preg_match('/^\d+\.\d+\.\d+(\-(alpha|beta|RC)\d*)*$/', $version)) { out("The defined install version ({$version}) does not match release pattern.", 'info'); $result = false; } if (false !== $cafile && (!file_exists($cafile) || !is_readable($cafile))) { out("The defined Certificate Authority (CA) cert file ({$cafile}) does not exist or is not readable.", 'info'); $result = false; } return $result; } /** * Checks the platform for possible issues running Composer * * Errors are written to the output, warnings are saved for later display. * * @param array $warnings Populated by method, to be shown later * @param bool $quiet Quiet mode * @param bool $disableTls Bypass tls * @param bool $install If we are installing, rather than diagnosing * * @return bool True if there are no errors */ function checkPlatform(&$warnings, $quiet, $disableTls, $install) { getPlatformIssues($errors, $warnings, $install); // Make openssl warning an error if tls has not been specifically disabled if (isset($warnings['openssl']) && !$disableTls) { $errors['openssl'] = $warnings['openssl']; unset($warnings['openssl']); } if (!empty($errors)) { // Composer-Setup.exe uses "Some settings" to flag platform errors out('Some settings on your machine make Composer unable to work properly.', 'error'); out('Make sure that you fix the issues listed below and run this script again:', 'error'); outputIssues($errors); return false; } if (empty($warnings) && !$quiet) { out('All settings correct for using Composer', 'success'); } return true; } /** * Checks platform configuration for common incompatibility issues * * @param array $errors Populated by method * @param array $warnings Populated by method * @param bool $install If we are installing, rather than diagnosing * * @return bool If any errors or warnings have been found */ function getPlatformIssues(&$errors, &$warnings, $install) { $errors = array(); $warnings = array(); if ($iniPath = php_ini_loaded_file()) { $iniMessage = PHP_EOL.'The php.ini used by your command-line PHP is: ' . $iniPath; } else { $iniMessage = PHP_EOL.'A php.ini file does not exist. You will have to create one.'; } $iniMessage .= PHP_EOL.'If you can not modify the ini file, you can also run `php -d option=value` to modify ini values on the fly. You can use -d multiple times.'; if (ini_get('detect_unicode')) { $errors['unicode'] = array( 'The detect_unicode setting must be disabled.', 'Add the following to the end of your `php.ini`:', ' detect_unicode = Off', $iniMessage ); } if (extension_loaded('suhosin')) { $suhosin = ini_get('suhosin.executor.include.whitelist'); $suhosinBlacklist = ini_get('suhosin.executor.include.blacklist'); if (false === stripos($suhosin, 'phar') && (!$suhosinBlacklist || false !== stripos($suhosinBlacklist, 'phar'))) { $errors['suhosin'] = array( 'The suhosin.executor.include.whitelist setting is incorrect.', 'Add the following to the end of your `php.ini` or suhosin.ini (Example path [for Debian]: /etc/php5/cli/conf.d/suhosin.ini):', ' suhosin.executor.include.whitelist = phar '.$suhosin, $iniMessage ); } } if (!function_exists('json_decode')) { $errors['json'] = array( 'The json extension is missing.', 'Install it or recompile php without --disable-json' ); } if (!extension_loaded('Phar')) { $errors['phar'] = array( 'The phar extension is missing.', 'Install it or recompile php without --disable-phar' ); } if (!extension_loaded('filter')) { $errors['filter'] = array( 'The filter extension is missing.', 'Install it or recompile php without --disable-filter' ); } if (!extension_loaded('hash')) { $errors['hash'] = array( 'The hash extension is missing.', 'Install it or recompile php without --disable-hash' ); } if (!extension_loaded('iconv') && !extension_loaded('mbstring')) { $errors['iconv_mbstring'] = array( 'The iconv OR mbstring extension is required and both are missing.', 'Install either of them or recompile php without --disable-iconv' ); } if (!ini_get('allow_url_fopen')) { $errors['allow_url_fopen'] = array( 'The allow_url_fopen setting is incorrect.', 'Add the following to the end of your `php.ini`:', ' allow_url_fopen = On', $iniMessage ); } if (extension_loaded('ionCube Loader') && ioncube_loader_iversion() < 40009) { $ioncube = ioncube_loader_version(); $errors['ioncube'] = array( 'Your ionCube Loader extension ('.$ioncube.') is incompatible with Phar files.', 'Upgrade to ionCube 4.0.9 or higher or remove this line (path may be different) from your `php.ini` to disable it:', ' zend_extension = /usr/lib/php5/20090626+lfs/ioncube_loader_lin_5.3.so', $iniMessage ); } if (version_compare(PHP_VERSION, '5.3.2', '<')) { $errors['php'] = array( 'Your PHP ('.PHP_VERSION.') is too old, you must upgrade to PHP 5.3.2 or higher.' ); } if (version_compare(PHP_VERSION, '5.3.4', '<')) { $warnings['php'] = array( 'Your PHP ('.PHP_VERSION.') is quite old, upgrading to PHP 5.3.4 or higher is recommended.', 'Composer works with 5.3.2+ for most people, but there might be edge case issues.' ); } if (!extension_loaded('openssl')) { $warnings['openssl'] = array( 'The openssl extension is missing, which means that secure HTTPS transfers are impossible.', 'If possible you should enable it or recompile php with --with-openssl' ); } if (extension_loaded('openssl') && OPENSSL_VERSION_NUMBER < 0x1000100f) { // Attempt to parse version number out, fallback to whole string value. $opensslVersion = trim(strstr(OPENSSL_VERSION_TEXT, ' ')); $opensslVersion = substr($opensslVersion, 0, strpos($opensslVersion, ' ')); $opensslVersion = $opensslVersion ? $opensslVersion : OPENSSL_VERSION_TEXT; $warnings['openssl_version'] = array( 'The OpenSSL library ('.$opensslVersion.') used by PHP does not support TLSv1.2 or TLSv1.1.', 'If possible you should upgrade OpenSSL to version 1.0.1 or above.' ); } if (!defined('HHVM_VERSION') && !extension_loaded('apcu') && ini_get('apc.enable_cli')) { $warnings['apc_cli'] = array( 'The apc.enable_cli setting is incorrect.', 'Add the following to the end of your `php.ini`:', ' apc.enable_cli = Off', $iniMessage ); } if (!$install && extension_loaded('xdebug')) { $warnings['xdebug_loaded'] = array( 'The xdebug extension is loaded, this can slow down Composer a little.', 'Disabling it when using Composer is recommended.' ); if (ini_get('xdebug.profiler_enabled')) { $warnings['xdebug_profile'] = array( 'The xdebug.profiler_enabled setting is enabled, this can slow down Composer a lot.', 'Add the following to the end of your `php.ini` to disable it:', ' xdebug.profiler_enabled = 0', $iniMessage ); } } if (!extension_loaded('zlib')) { $warnings['zlib'] = array( 'The zlib extension is not loaded, this can slow down Composer a lot.', 'If possible, install it or recompile php with --with-zlib', $iniMessage ); } if (defined('PHP_WINDOWS_VERSION_BUILD') && (version_compare(PHP_VERSION, '7.2.23', '<') || (version_compare(PHP_VERSION, '7.3.0', '>=') && version_compare(PHP_VERSION, '7.3.10', '<')))) { $warnings['onedrive'] = array( 'The Windows OneDrive folder is not supported on PHP versions below 7.2.23 and 7.3.10.', 'Upgrade your PHP ('.PHP_VERSION.') to use this location with Composer.' ); } if (extension_loaded('uopz') && !(ini_get('uopz.disable') || ini_get('uopz.exit'))) { $warnings['uopz'] = array( 'The uopz extension ignores exit calls and may not work with all Composer commands.', 'Disabling it when using Composer is recommended.' ); } ob_start(); phpinfo(INFO_GENERAL); $phpinfo = ob_get_clean(); if (preg_match('{Configure Command(?: *| *=> *)(.*?)(?:|$)}m', $phpinfo, $match)) { $configure = $match[1]; if (false !== strpos($configure, '--enable-sigchild')) { $warnings['sigchild'] = array( 'PHP was compiled with --enable-sigchild which can cause issues on some platforms.', 'Recompile it without this flag if possible, see also:', ' https://bugs.php.net/bug.php?id=22999' ); } if (false !== strpos($configure, '--with-curlwrappers')) { $warnings['curlwrappers'] = array( 'PHP was compiled with --with-curlwrappers which will cause issues with HTTP authentication and GitHub.', 'Recompile it without this flag if possible' ); } } // Stringify the message arrays foreach ($errors as $key => $value) { $errors[$key] = PHP_EOL.implode(PHP_EOL, $value); } foreach ($warnings as $key => $value) { $warnings[$key] = PHP_EOL.implode(PHP_EOL, $value); } return !empty($errors) || !empty($warnings); } /** * Outputs an array of issues * * @param array $issues */ function outputIssues($issues) { foreach ($issues as $issue) { out($issue, 'info'); } out(''); } /** * Outputs any warnings found * * @param array $warnings */ function showWarnings($warnings) { if (!empty($warnings)) { out('Some settings on your machine may cause stability issues with Composer.', 'error'); out('If you encounter issues, try to change the following:', 'error'); outputIssues($warnings); } } /** * Outputs an end of process warning if tls has been bypassed * * @param bool $disableTls Bypass tls */ function showSecurityWarning($disableTls) { if ($disableTls) { out('You have instructed the Installer not to enforce SSL/TLS security on remote HTTPS requests.', 'info'); out('This will leave all downloads during installation vulnerable to Man-In-The-Middle (MITM) attacks', 'info'); } } /** * colorize output */ function out($text, $color = null, $newLine = true) { $styles = array( 'success' => "\033[0;32m%s\033[0m", 'error' => "\033[31;31m%s\033[0m", 'info' => "\033[33;33m%s\033[0m" ); $format = '%s'; if (isset($styles[$color]) && USE_ANSI) { $format = $styles[$color]; } if ($newLine) { $format .= PHP_EOL; } printf($format, $text); } /** * Returns the system-dependent Composer home location, which may not exist * * @return string */ function getHomeDir() { $home = getenv('COMPOSER_HOME'); if (!$home) { $userDir = getUserDir(); if (defined('PHP_WINDOWS_VERSION_MAJOR')) { $home = $userDir.'/Composer'; } else { $home = $userDir.'/.composer'; if (!is_dir($home) && useXdg()) { // XDG Base Directory Specifications if (!($xdgConfig = getenv('XDG_CONFIG_HOME'))) { $xdgConfig = $userDir.'/.config'; } $home = $xdgConfig.'/composer'; } } } return $home; } /** * Returns the location of the user directory from the environment * @throws RuntimeException If the environment value does not exists * * @return string */ function getUserDir() { $userEnv = defined('PHP_WINDOWS_VERSION_MAJOR') ? 'APPDATA' : 'HOME'; $userDir = getenv($userEnv); if (!$userDir) { throw new RuntimeException('The '.$userEnv.' or COMPOSER_HOME environment variable must be set for composer to run correctly'); } return rtrim(strtr($userDir, '\\', '/'), '/'); } /** * @return bool */ function useXdg() { foreach (array_keys($_SERVER) as $key) { if (strpos($key, 'XDG_') === 0) { return true; } } return false; } function validateCaFile($contents) { // assume the CA is valid if php is vulnerable to // https://www.sektioneins.de/advisories/advisory-012013-php-openssl_x509_parse-memory-corruption-vulnerability.html if ( PHP_VERSION_ID <= 50327 || (PHP_VERSION_ID >= 50400 && PHP_VERSION_ID < 50422) || (PHP_VERSION_ID >= 50500 && PHP_VERSION_ID < 50506) ) { return !empty($contents); } return (bool) openssl_x509_parse($contents); } class Installer { private $quiet; private $disableTls; private $cafile; private $displayPath; private $target; private $tmpFile; private $baseUrl; private $algo; private $errHandler; private $httpClient; private $pubKeys = array(); private $installs = array(); /** * Constructor - must not do anything that throws an exception * * @param bool $quiet Quiet mode * @param bool $disableTls Bypass tls * @param mixed $cafile Path to CA bundle, or false */ public function __construct($quiet, $disableTls, $caFile) { if (($this->quiet = $quiet)) { ob_start(); } $this->disableTls = $disableTls; $this->cafile = $caFile; $this->errHandler = new ErrorHandler(); } /** * Runs the installer * * @param mixed $version Specific version to install, or false * @param mixed $installDir Specific installation directory, or false * @param string $filename Specific filename to save to, or composer.phar * @param string $channel Specific version channel to use * @throws Exception If anything other than a RuntimeException is caught * * @return bool If the installation succeeded */ public function run($version, $installDir, $filename, $channel) { try { $this->initTargets($installDir, $filename); $this->initTls(); $this->httpClient = new HttpClient($this->disableTls, $this->cafile); $result = $this->install($version, $channel); // in case --1 or --2 is passed, we leave the default channel for next self-update to stable if (is_numeric($channel)) { $channel = 'stable'; } if ($result && $channel !== 'stable' && !$version && defined('PHP_BINARY')) { $null = (defined('PHP_WINDOWS_VERSION_MAJOR') ? 'NUL' : '/dev/null'); @exec(escapeshellarg(PHP_BINARY) .' '.escapeshellarg($this->target).' self-update --'.$channel.' --set-channel-only -q > '.$null.' 2> '.$null, $output); } } catch (Exception $e) { $result = false; } // Always clean up $this->cleanUp($result); if (isset($e)) { // Rethrow anything that is not a RuntimeException if (!$e instanceof RuntimeException) { throw $e; } out($e->getMessage(), 'error'); } return $result; } /** * Initialization methods to set the required filenames and composer url * * @param mixed $installDir Specific installation directory, or false * @param string $filename Specific filename to save to, or composer.phar * @throws RuntimeException If the installation directory is not writable */ protected function initTargets($installDir, $filename) { $this->displayPath = ($installDir ? rtrim($installDir, '/').'/' : '').$filename; $installDir = $installDir ? realpath($installDir) : getcwd(); if (!is_writeable($installDir)) { throw new RuntimeException('The installation directory "'.$installDir.'" is not writable'); } $this->target = $installDir.DIRECTORY_SEPARATOR.$filename; $this->tmpFile = $installDir.DIRECTORY_SEPARATOR.basename($this->target, '.phar').'-temp.phar'; $uriScheme = $this->disableTls ? 'http' : 'https'; $this->baseUrl = $uriScheme.'://getcomposer.org'; } /** * A wrapper around methods to check tls and write public keys * @throws RuntimeException If SHA384 is not supported */ protected function initTls() { if ($this->disableTls) { return; } if (!in_array('sha384', array_map('strtolower', openssl_get_md_methods()))) { throw new RuntimeException('SHA384 is not supported by your openssl extension'); } $this->algo = defined('OPENSSL_ALGO_SHA384') ? OPENSSL_ALGO_SHA384 : 'SHA384'; $home = $this->getComposerHome(); $this->pubKeys = array( 'dev' => $this->installKey(self::getPKDev(), $home, 'keys.dev.pub'), 'tags' => $this->installKey(self::getPKTags(), $home, 'keys.tags.pub') ); if (empty($this->cafile) && !HttpClient::getSystemCaRootBundlePath()) { $this->cafile = $this->installKey(HttpClient::getPackagedCaFile(), $home, 'cacert.pem'); } } /** * Returns the Composer home directory, creating it if required * @throws RuntimeException If the directory cannot be created * * @return string */ protected function getComposerHome() { $home = getHomeDir(); if (!is_dir($home)) { $this->errHandler->start(); if (!mkdir($home, 0777, true)) { throw new RuntimeException(sprintf( 'Unable to create Composer home directory "%s": %s', $home, $this->errHandler->message )); } $this->installs[] = $home; $this->errHandler->stop(); } return $home; } /** * Writes public key data to disc * * @param string $data The public key(s) in pem format * @param string $path The directory to write to * @param string $filename The name of the file * @throws RuntimeException If the file cannot be written * * @return string The path to the saved data */ protected function installKey($data, $path, $filename) { $this->errHandler->start(); $target = $path.DIRECTORY_SEPARATOR.$filename; $installed = file_exists($target); $write = file_put_contents($target, $data, LOCK_EX); @chmod($target, 0644); $this->errHandler->stop(); if (!$write) { throw new RuntimeException(sprintf('Unable to write %s to: %s', $filename, $path)); } if (!$installed) { $this->installs[] = $target; } return $target; } /** * The main install function * * @param mixed $version Specific version to install, or false * @param string $channel Version channel to use * * @return bool If the installation succeeded */ protected function install($version, $channel) { $retries = 3; $result = false; $infoMsg = 'Downloading...'; $infoType = 'info'; while ($retries--) { if (!$this->quiet) { out($infoMsg, $infoType); $infoMsg = 'Retrying...'; $infoType = 'error'; } if (!$this->getVersion($channel, $version, $url, $error)) { out($error, 'error'); continue; } if (!$this->downloadToTmp($url, $signature, $error)) { out($error, 'error'); continue; } if (!$this->verifyAndSave($version, $signature, $error)) { out($error, 'error'); continue; } $result = true; break; } if (!$this->quiet) { if ($result) { out(PHP_EOL."Composer (version {$version}) successfully installed to: {$this->target}", 'success'); out("Use it: php {$this->displayPath}", 'info'); out(''); } else { out('The download failed repeatedly, aborting.', 'error'); } } return $result; } /** * Sets the version url, downloading version data if required * * @param string $channel Version channel to use * @param false|string $version Version to install, or set by method * @param null|string $url The versioned url, set by method * @param null|string $error Set by method on failure * * @return bool If the operation succeeded */ protected function getVersion($channel, &$version, &$url, &$error) { $error = ''; if ($version) { if (empty($url)) { $url = $this->baseUrl."/download/{$version}/composer.phar"; } return true; } $this->errHandler->start(); if ($this->downloadVersionData($data, $error)) { $this->parseVersionData($data, $channel, $version, $url); } $this->errHandler->stop(); return empty($error); } /** * Downloads and json-decodes version data * * @param null|array $data Downloaded version data, set by method * @param null|string $error Set by method on failure * * @return bool If the operation succeeded */ protected function downloadVersionData(&$data, &$error) { $url = $this->baseUrl.'/versions'; $errFmt = 'The "%s" file could not be %s: %s'; if (!$json = $this->httpClient->get($url)) { $error = sprintf($errFmt, $url, 'downloaded', $this->errHandler->message); return false; } if (!$data = json_decode($json, true)) { $error = sprintf($errFmt, $url, 'json-decoded', $this->getJsonError()); return false; } return true; } /** * A wrapper around the methods needed to download and save the phar * * @param string $url The versioned download url * @param null|string $signature Set by method on successful download * @param null|string $error Set by method on failure * * @return bool If the operation succeeded */ protected function downloadToTmp($url, &$signature, &$error) { $error = ''; $errFmt = 'The "%s" file could not be downloaded: %s'; $sigUrl = $url.'.sig'; $this->errHandler->start(); if (!$fh = fopen($this->tmpFile, 'w')) { $error = sprintf('Could not create file "%s": %s', $this->tmpFile, $this->errHandler->message); } elseif (!$this->getSignature($sigUrl, $signature)) { $error = sprintf($errFmt, $sigUrl, $this->errHandler->message); } elseif (!fwrite($fh, $this->httpClient->get($url))) { $error = sprintf($errFmt, $url, $this->errHandler->message); } if (is_resource($fh)) { fclose($fh); } $this->errHandler->stop(); return empty($error); } /** * Verifies the downloaded file and saves it to the target location * * @param string $version The composer version downloaded * @param string $signature The digital signature to check * @param null|string $error Set by method on failure * * @return bool If the operation succeeded */ protected function verifyAndSave($version, $signature, &$error) { $error = ''; if (!$this->validatePhar($this->tmpFile, $pharError)) { $error = 'The download is corrupt: '.$pharError; } elseif (!$this->verifySignature($version, $signature, $this->tmpFile)) { $error = 'Signature mismatch, could not verify the phar file integrity'; } else { $this->errHandler->start(); if (!rename($this->tmpFile, $this->target)) { $error = sprintf('Could not write to file "%s": %s', $this->target, $this->errHandler->message); } chmod($this->target, 0755); $this->errHandler->stop(); } return empty($error); } /** * Parses an array of version data to match the required channel * * @param array $data Downloaded version data * @param mixed $channel Version channel to use * @param false|string $version Set by method * @param mixed $url The versioned url, set by method */ protected function parseVersionData(array $data, $channel, &$version, &$url) { foreach ($data[$channel] as $candidate) { if ($candidate['min-php'] <= PHP_VERSION_ID) { $version = $candidate['version']; $url = $this->baseUrl.$candidate['path']; break; } } if (!$version) { $error = sprintf( 'None of the %d %s version(s) of Composer matches your PHP version (%s / ID: %d)', count($data[$channel]), $channel, PHP_VERSION, PHP_VERSION_ID ); throw new RuntimeException($error); } } /** * Downloads the digital signature of required phar file * * @param string $url The signature url * @param null|string $signature Set by method on success * * @return bool If the download succeeded */ protected function getSignature($url, &$signature) { if (!$result = $this->disableTls) { $signature = $this->httpClient->get($url); if ($signature) { $signature = json_decode($signature, true); $signature = base64_decode($signature['sha384']); $result = true; } } return $result; } /** * Verifies the signature of the downloaded phar * * @param string $version The composer versione * @param string $signature The downloaded digital signature * @param string $file The temp phar file * * @return bool If the operation succeeded */ protected function verifySignature($version, $signature, $file) { if (!$result = $this->disableTls) { $path = preg_match('{^[0-9a-f]{40}$}', $version) ? $this->pubKeys['dev'] : $this->pubKeys['tags']; $pubkeyid = openssl_pkey_get_public('file://'.$path); $result = 1 === openssl_verify( file_get_contents($file), $signature, $pubkeyid, $this->algo ); // PHP 8 automatically frees the key instance and deprecates the function if (PHP_VERSION_ID < 80000) { openssl_free_key($pubkeyid); } } return $result; } /** * Validates the downloaded phar file * * @param string $pharFile The temp phar file * @param null|string $error Set by method on failure * * @return bool If the operation succeeded */ protected function validatePhar($pharFile, &$error) { if (ini_get('phar.readonly')) { return true; } try { // Test the phar validity $phar = new Phar($pharFile); // Free the variable to unlock the file unset($phar); $result = true; } catch (Exception $e) { if (!$e instanceof UnexpectedValueException && !$e instanceof PharException) { throw $e; } $error = $e->getMessage(); $result = false; } return $result; } /** * Returns a string representation of the last json error * * @return string The error string or code */ protected function getJsonError() { if (function_exists('json_last_error_msg')) { return json_last_error_msg(); } else { return 'json_last_error = '.json_last_error(); } } /** * Cleans up resources at the end of the installation * * @param bool $result If the installation succeeded */ protected function cleanUp($result) { if (!$result) { // Output buffered errors if ($this->quiet) { $this->outputErrors(); } // Clean up stuff we created $this->uninstall(); } } /** * Outputs unique errors when in quiet mode * */ protected function outputErrors() { $errors = explode(PHP_EOL, ob_get_clean()); $shown = array(); foreach ($errors as $error) { if ($error && !in_array($error, $shown)) { out($error, 'error'); $shown[] = $error; } } } /** * Uninstalls newly-created files and directories on failure * */ protected function uninstall() { foreach (array_reverse($this->installs) as $target) { if (is_file($target)) { @unlink($target); } elseif (is_dir($target)) { @rmdir($target); } } if (file_exists($this->tmpFile)) { @unlink($this->tmpFile); } } public static function getPKDev() { return <<message) { $this->message .= PHP_EOL; } $this->message .= preg_replace('{^file_get_contents\(.*?\): }', '', $msg); } /** * Starts error-handling if not already active * * Any message is cleared */ public function start() { if (!$this->active) { set_error_handler(array($this, 'handleError')); $this->active = true; } $this->message = ''; } /** * Stops error-handling if active * * Any message is preserved until the next call to start() */ public function stop() { if ($this->active) { restore_error_handler(); $this->active = false; } } } class NoProxyPattern { private $composerInNoProxy = false; private $rulePorts = array(); public function __construct($pattern) { $rules = preg_split('{[\s,]+}', $pattern, null, PREG_SPLIT_NO_EMPTY); if ($matches = preg_grep('{getcomposer\.org(?::\d+)?}i', $rules)) { $this->composerInNoProxy = true; foreach ($matches as $match) { if (strpos($match, ':') !== false) { list(, $port) = explode(':', $match); $this->rulePorts[] = (int) $port; } } } } /** * Returns true if NO_PROXY contains getcomposer.org * * @param string $url http(s)://getcomposer.org * * @return bool */ public function test($url) { if (!$this->composerInNoProxy) { return false; } if (empty($this->rulePorts)) { return true; } if (strpos($url, 'http://') === 0) { $port = 80; } else { $port = 443; } return in_array($port, $this->rulePorts); } } class HttpClient { private $options = array('http' => array()); private $disableTls = false; public function __construct($disableTls = false, $cafile = false) { $this->disableTls = $disableTls; if ($this->disableTls === false) { if (!empty($cafile) && !is_dir($cafile)) { if (!is_readable($cafile) || !validateCaFile(file_get_contents($cafile))) { throw new RuntimeException('The configured cafile (' .$cafile. ') was not valid or could not be read.'); } } $options = $this->getTlsStreamContextDefaults($cafile); $this->options = array_replace_recursive($this->options, $options); } } public function get($url) { $context = $this->getStreamContext($url); $result = file_get_contents($url, false, $context); if ($result && extension_loaded('zlib')) { $decode = false; foreach ($http_response_header as $header) { if (preg_match('{^content-encoding: *gzip *$}i', $header)) { $decode = true; continue; } elseif (preg_match('{^HTTP/}i', $header)) { $decode = false; } } if ($decode) { if (version_compare(PHP_VERSION, '5.4.0', '>=')) { $result = zlib_decode($result); } else { // work around issue with gzuncompress & co that do not work with all gzip checksums $result = file_get_contents('compress.zlib://data:application/octet-stream;base64,'.base64_encode($result)); } if (!$result) { throw new RuntimeException('Failed to decode zlib stream'); } } } return $result; } protected function getStreamContext($url) { if ($this->disableTls === false) { if (PHP_VERSION_ID < 50600) { $this->options['ssl']['SNI_server_name'] = parse_url($url, PHP_URL_HOST); } } // Keeping the above mostly isolated from the code copied from Composer. return $this->getMergedStreamContext($url); } protected function getTlsStreamContextDefaults($cafile) { $ciphers = implode(':', array( 'ECDHE-RSA-AES128-GCM-SHA256', 'ECDHE-ECDSA-AES128-GCM-SHA256', 'ECDHE-RSA-AES256-GCM-SHA384', 'ECDHE-ECDSA-AES256-GCM-SHA384', 'DHE-RSA-AES128-GCM-SHA256', 'DHE-DSS-AES128-GCM-SHA256', 'kEDH+AESGCM', 'ECDHE-RSA-AES128-SHA256', 'ECDHE-ECDSA-AES128-SHA256', 'ECDHE-RSA-AES128-SHA', 'ECDHE-ECDSA-AES128-SHA', 'ECDHE-RSA-AES256-SHA384', 'ECDHE-ECDSA-AES256-SHA384', 'ECDHE-RSA-AES256-SHA', 'ECDHE-ECDSA-AES256-SHA', 'DHE-RSA-AES128-SHA256', 'DHE-RSA-AES128-SHA', 'DHE-DSS-AES128-SHA256', 'DHE-RSA-AES256-SHA256', 'DHE-DSS-AES256-SHA', 'DHE-RSA-AES256-SHA', 'AES128-GCM-SHA256', 'AES256-GCM-SHA384', 'AES128-SHA256', 'AES256-SHA256', 'AES128-SHA', 'AES256-SHA', 'AES', 'CAMELLIA', 'DES-CBC3-SHA', '!aNULL', '!eNULL', '!EXPORT', '!DES', '!RC4', '!MD5', '!PSK', '!aECDH', '!EDH-DSS-DES-CBC3-SHA', '!EDH-RSA-DES-CBC3-SHA', '!KRB5-DES-CBC3-SHA', )); /** * CN_match and SNI_server_name are only known once a URL is passed. * They will be set in the getOptionsForUrl() method which receives a URL. * * cafile or capath can be overridden by passing in those options to constructor. */ $options = array( 'ssl' => array( 'ciphers' => $ciphers, 'verify_peer' => true, 'verify_depth' => 7, 'SNI_enabled' => true, ) ); /** * Attempt to find a local cafile or throw an exception. * The user may go download one if this occurs. */ if (!$cafile) { $cafile = self::getSystemCaRootBundlePath(); } if (is_dir($cafile)) { $options['ssl']['capath'] = $cafile; } elseif ($cafile) { $options['ssl']['cafile'] = $cafile; } else { throw new RuntimeException('A valid cafile could not be located automatically.'); } /** * Disable TLS compression to prevent CRIME attacks where supported. */ if (version_compare(PHP_VERSION, '5.4.13') >= 0) { $options['ssl']['disable_compression'] = true; } return $options; } /** * function copied from Composer\Util\StreamContextFactory::initOptions * * Any changes should be applied there as well, or backported here. * * @param string $url URL the context is to be used for * @return resource Default context * @throws \RuntimeException if https proxy required and OpenSSL uninstalled */ protected function getMergedStreamContext($url) { $options = $this->options; // Handle HTTP_PROXY/http_proxy on CLI only for security reasons if ((PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg') && (!empty($_SERVER['HTTP_PROXY']) || !empty($_SERVER['http_proxy']))) { $proxy = parse_url(!empty($_SERVER['http_proxy']) ? $_SERVER['http_proxy'] : $_SERVER['HTTP_PROXY']); } // Prefer CGI_HTTP_PROXY if available if (!empty($_SERVER['CGI_HTTP_PROXY'])) { $proxy = parse_url($_SERVER['CGI_HTTP_PROXY']); } // Override with HTTPS proxy if present and URL is https if (preg_match('{^https://}i', $url) && (!empty($_SERVER['HTTPS_PROXY']) || !empty($_SERVER['https_proxy']))) { $proxy = parse_url(!empty($_SERVER['https_proxy']) ? $_SERVER['https_proxy'] : $_SERVER['HTTPS_PROXY']); } // Remove proxy if URL matches no_proxy directive if (!empty($_SERVER['NO_PROXY']) || !empty($_SERVER['no_proxy']) && parse_url($url, PHP_URL_HOST)) { $pattern = new NoProxyPattern(!empty($_SERVER['no_proxy']) ? $_SERVER['no_proxy'] : $_SERVER['NO_PROXY']); if ($pattern->test($url)) { unset($proxy); } } if (!empty($proxy)) { $proxyURL = isset($proxy['scheme']) ? $proxy['scheme'] . '://' : ''; $proxyURL .= isset($proxy['host']) ? $proxy['host'] : ''; if (isset($proxy['port'])) { $proxyURL .= ":" . $proxy['port']; } elseif (strpos($proxyURL, 'http://') === 0) { $proxyURL .= ":80"; } elseif (strpos($proxyURL, 'https://') === 0) { $proxyURL .= ":443"; } // http(s):// is not supported in proxy $proxyURL = str_replace(array('http://', 'https://'), array('tcp://', 'ssl://'), $proxyURL); if (0 === strpos($proxyURL, 'ssl:') && !extension_loaded('openssl')) { throw new RuntimeException('You must enable the openssl extension to use a proxy over https'); } $options['http'] = array( 'proxy' => $proxyURL, ); // set request_fulluri, depending on default requirements and the environment switch (parse_url($url, PHP_URL_SCHEME)) { case 'http': // default is true for HTTP, check if explicitly disabled $reqFullUriEnv = getenv('HTTP_PROXY_REQUEST_FULLURI'); if ($reqFullUriEnv === false || $reqFullUriEnv === '' || (strtolower($reqFullUriEnv) !== 'false' && (bool) $reqFullUriEnv)) { $options['http']['request_fulluri'] = true; } break; case 'https': // default is false for HTTPS, check if explicitly enabled $reqFullUriEnv = getenv('HTTPS_PROXY_REQUEST_FULLURI'); if (strtolower($reqFullUriEnv) !== 'false' && (bool) $reqFullUriEnv) { $options['http']['request_fulluri'] = true; } break; } // handle proxy auth if present if (isset($proxy['user'])) { $auth = rawurldecode($proxy['user']); if (isset($proxy['pass'])) { $auth .= ':' . rawurldecode($proxy['pass']); } $auth = base64_encode($auth); $options['http']['header'] = "Proxy-Authorization: Basic {$auth}\r\n"; } } if (isset($options['http']['header'])) { $options['http']['header'] .= "Connection: close\r\n"; } else { $options['http']['header'] = "Connection: close\r\n"; } if (extension_loaded('zlib')) { $options['http']['header'] .= "Accept-Encoding: gzip\r\n"; } $options['http']['header'] .= "User-Agent: ".COMPOSER_INSTALLER."\r\n"; $options['http']['protocol_version'] = 1.1; $options['http']['timeout'] = 600; return stream_context_create($options); } /** * This method was adapted from Sslurp. * https://github.com/EvanDotPro/Sslurp * * (c) Evan Coury * * 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. */ public static function getSystemCaRootBundlePath() { static $caPath = null; if ($caPath !== null) { return $caPath; } // 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. $envCertFile = getenv('SSL_CERT_FILE'); if ($envCertFile && is_readable($envCertFile) && validateCaFile(file_get_contents($envCertFile))) { return $caPath = $envCertFile; } // 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. $envCertDir = getenv('SSL_CERT_DIR'); if ($envCertDir && is_dir($envCertDir) && is_readable($envCertDir)) { return $caPath = $envCertDir; } $configured = ini_get('openssl.cafile'); if ($configured && strlen($configured) > 0 && is_readable($configured) && validateCaFile(file_get_contents($configured))) { return $caPath = $configured; } $configured = ini_get('openssl.capath'); if ($configured && is_dir($configured) && is_readable($configured)) { return $caPath = $configured; } $caBundlePaths = array( '/etc/pki/tls/certs/ca-bundle.crt', // Fedora, RHEL, CentOS (ca-certificates package) '/etc/ssl/certs/ca-certificates.crt', // Debian, Ubuntu, Gentoo, Arch Linux (ca-certificates package) '/etc/ssl/ca-bundle.pem', // SUSE, openSUSE (ca-certificates package) '/usr/local/share/certs/ca-root-nss.crt', // FreeBSD (ca_root_nss_package) '/usr/ssl/certs/ca-bundle.crt', // Cygwin '/opt/local/share/curl/curl-ca-bundle.crt', // OS X macports, curl-ca-bundle package '/usr/local/share/curl/curl-ca-bundle.crt', // Default cURL CA bunde path (without --with-ca-bundle option) '/usr/share/ssl/certs/ca-bundle.crt', // Really old RedHat? '/etc/ssl/cert.pem', // OpenBSD '/usr/local/etc/ssl/cert.pem', // FreeBSD 10.x '/usr/local/etc/openssl/cert.pem', // OS X homebrew, openssl package '/usr/local/etc/openssl@1.1/cert.pem', // OS X homebrew, openssl@1.1 package ); foreach ($caBundlePaths as $caBundle) { if (@is_readable($caBundle) && validateCaFile(file_get_contents($caBundle))) { return $caPath = $caBundle; } } foreach ($caBundlePaths as $caBundle) { $caBundle = dirname($caBundle); if (is_dir($caBundle) && glob($caBundle.'/*')) { return $caPath = $caBundle; } } return $caPath = false; } public static function getPackagedCaFile() { return <<