<?php
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer;
use Composer\Config\ConfigSourceInterface;
use Composer\Downloader\TransportException;
use Composer\IO\IOInterface;
use Composer\Util\Platform;
use Composer\Util\ProcessExecutor;
/**
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class Config
{
const RELATIVE_PATHS = 1;
public static $defaultConfig = array(
'process-timeout' => 300,
'use-include-path' => false,
'preferred-install' => 'auto',
'notify-on-install' => true,
'github-protocols' => array('https', 'ssh', 'git'),
'vendor-dir' => 'vendor',
'bin-dir' => '{$vendor-dir}/bin',
'cache-dir' => '{$home}/cache',
'data-dir' => '{$home}',
'cache-files-dir' => '{$cache-dir}/files',
'cache-repo-dir' => '{$cache-dir}/repo',
'cache-vcs-dir' => '{$cache-dir}/vcs',
'cache-ttl' => 15552000, // 6 months
'cache-files-ttl' => null, // fallback to cache-ttl
'cache-files-maxsize' => '300MiB',
'bin-compat' => 'auto',
'discard-changes' => false,
'autoloader-suffix' => null,
'sort-packages' => false,
'optimize-autoloader' => false,
'classmap-authoritative' => false,
'apcu-autoloader' => false,
'prepend-autoloader' => true,
'github-domains' => array('github.com'),
'bitbucket-expose-hostname' => true,
'disable-tls' => false,
'secure-http' => true,
'cafile' => null,
'capath' => null,
'github-expose-hostname' => true,
'gitlab-domains' => array('gitlab.com'),
'store-auths' => 'prompt',
'platform' => array(),
'archive-format' => 'tar',
'archive-dir' => '.',
'htaccess-protect' => true,
'use-github-api' => true,
'lock' => true,
// valid keys without defaults (auth config stuff):
// bitbucket-oauth
// github-oauth
// gitlab-oauth
// gitlab-token
// http-basic
// bearer
);
public static $defaultRepositories = array(
'packagist.org' => array(
'type' => 'composer',
'url' => 'https?://repo.packagist.org',
'allow_ssl_downgrade' => true,
),
);
private $config;
private $baseDir;
private $repositories;
/** @var ConfigSourceInterface */
private $configSource;
/** @var ConfigSourceInterface */
private $authConfigSource;
private $useEnvironment;
private $warnedHosts = array();
/**
* @param bool $useEnvironment Use COMPOSER_ environment variables to replace config settings
* @param string $baseDir Optional base directory of the config
*/
public function __construct($useEnvironment = true, $baseDir = null)
{
// load defaults
$this->config = static::$defaultConfig;
$this->repositories = static::$defaultRepositories;
$this->useEnvironment = (bool) $useEnvironment;
$this->baseDir = $baseDir;
}
public function setConfigSource(ConfigSourceInterface $source)
{
$this->configSource = $source;
}
public function getConfigSource()
{
return $this->configSource;
}
public function setAuthConfigSource(ConfigSourceInterface $source)
{
$this->authConfigSource = $source;
}
public function getAuthConfigSource()
{
return $this->authConfigSource;
}
/**
* Merges new config values with the existing ones (overriding)
*
* @param array $config
*/
public function merge($config)
{
// override defaults with given config
if (!empty($config['config']) && is_array($config['config'])) {
foreach ($config['config'] as $key => $val) {
if (in_array($key, array('bitbucket-oauth', 'github-oauth', 'gitlab-oauth', 'gitlab-token', 'http-basic', 'bearer')) && isset($this->config[$key])) {
$this->config[$key] = array_merge($this->config[$key], $val);
} elseif ('preferred-install' === $key && isset($this->config[$key])) {
if (is_array($val) || is_array($this->config[$key])) {
if (is_string($val)) {
$val = array('*' => $val);
}
if (is_string($this->config[$key])) {
$this->config[$key] = array('*' => $this->config[$key]);
}
$this->config[$key] = array_merge($this->config[$key], $val);
// the full match pattern needs to be last
if (isset($this->config[$key]['*'])) {
$wildcard = $this->config[$key]['*'];
unset($this->config[$key]['*']);
$this->config[$key]['*'] = $wildcard;
}
} else {
$this->config[$key] = $val;
}
} else {
$this->config[$key] = $val;
}
}
}
if (!empty($config['repositories']) && is_array($config['repositories'])) {
$this->repositories = array_reverse($this->repositories, true);
$newRepos = array_reverse($config['repositories'], true);
foreach ($newRepos as $name => $repository) {
// disable a repository by name
if (false === $repository) {
$this->disableRepoByName($name);
continue;
}
// disable a repository with an anonymous {"name": false} repo
if (is_array($repository) && 1 === count($repository) && false === current($repository)) {
$this->disableRepoByName(key($repository));
continue;
}
// store repo
if (is_int($name)) {
$this->repositories[] = $repository;
} else {
if ($name === 'packagist') { // BC support for default "packagist" named repo
$this->repositories[$name . '.org'] = $repository;
} else {
$this->repositories[$name] = $repository;
}
}
}
$this->repositories = array_reverse($this->repositories, true);
}
}
/**
* @return array
*/
public function getRepositories()
{
return $this->repositories;
}
/**
* Returns a setting
*
* @param string $key
* @param int $flags Options (see class constants)
* @throws \RuntimeException
* @return mixed
*/
public function get($key, $flags = 0)
{
switch ($key) {
case 'vendor-dir':
case 'bin-dir':
case 'process-timeout':
case 'data-dir':
case 'cache-dir':
case 'cache-files-dir':
case 'cache-repo-dir':
case 'cache-vcs-dir':
case 'cafile':
case 'capath':
// convert foo-bar to COMPOSER_FOO_BAR and check if it exists since it overrides the local config
$env = 'COMPOSER_' . strtoupper(strtr($key, '-', '_'));
$val = $this->getComposerEnv($env);
$val = rtrim((string) $this->process(false !== $val ? $val : $this->config[$key], $flags), '/\\');
$val = Platform::expandPath($val);
if (substr($key, -4) !== '-dir') {
return $val;
}
return (($flags & self::RELATIVE_PATHS) == self::RELATIVE_PATHS) ? $val : $this->realpath($val);
case 'htaccess-protect':
$value = $this->getComposerEnv('COMPOSER_HTACCESS_PROTECT');
if (false === $value) {
$value = $this->config[$key];
}
return $value !== 'false' && (bool) $value;
case 'cache-ttl':
return (int) $this->config[$key];
case 'cache-files-maxsize':
if (!preg_match('/^\s*([0-9.]+)\s*(?:([kmg])(?:i?b)?)?\s*$/i', $this->config[$key], $matches)) {
throw new \RuntimeException(
"Could not parse the value of 'cache-files-maxsize': {$this->config[$key]}"
);
}
$size = $matches[1];
if (isset($matches[2])) {
switch (strtolower($matches[2])) {
case 'g':
$size *= 1024;
// intentional fallthrough
// no break
case 'm':
$size *= 1024;
// intentional fallthrough
// no break
case 'k':
$size *= 1024;
break;
}
}
return $size;
case 'cache-files-ttl':
if (isset($this->config[$key])) {
return (int) $this->config[$key];
}
return (int) $this->config['cache-ttl'];
case 'home':
$val = preg_replace('#^(\$HOME|~)(/|$)#', rtrim(getenv('HOME') ?: getenv('USERPROFILE'), '/\\') . '/', $this->config[$key]);
return rtrim($this->process($val, $flags), '/\\');
case 'bin-compat':
$value = $this->getComposerEnv('COMPOSER_BIN_COMPAT') ?: $this->config[$key];
if (!in_array($value, array('auto', 'full'))) {
throw new \RuntimeException(
"Invalid value for 'bin-compat': {$value}. Expected auto, full"
);
}
return $value;
case 'discard-changes':
if ($env = $this->getComposerEnv('COMPOSER_DISCARD_CHANGES')) {
if (!in_array($env, array('stash', 'true', 'false', '1', '0'), true)) {
throw new \RuntimeException(
"Invalid value for COMPOSER_DISCARD_CHANGES: {$env}. Expected 1, 0, true, false or stash"
);
}
if ('stash' === $env) {
return 'stash';
}
// convert string value to bool
return $env !== 'false' && (bool) $env;
}
if (!in_array($this->config[$key], array(true, false, 'stash'), true)) {
throw new \RuntimeException(
"Invalid value for 'discard-changes': {$this->config[$key]}. Expected true, false or stash"
);
}
return $this->config[$key];
case 'github-protocols':
$protos = $this->config['github-protocols'];
if ($this->config['secure-http'] && false !== ($index = array_search('git', $protos))) {
unset($protos[$index]);
}
if (reset($protos) === 'http') {
throw new \RuntimeException('The http protocol for github is not available anymore, update your config\'s github-protocols to use "https", "git" or "ssh"');
}
return $protos;
case 'disable-tls':
return $this->config[$key] !== 'false' && (bool) $this->config[$key];
case 'secure-http':
if ($this->get('disable-tls') === true) {
return false;
}
return $this->config[$key] !== 'false' && (bool) $this->config[$key];
case 'use-github-api':
return $this->config[$key] !== 'false' && (bool) $this->config[$key];
case 'lock':
return $this->config[$key] !== 'false' && (bool) $this->config[$key];
default:
if (!isset($this->config[$key])) {
return null;
}
return $this->process($this->config[$key], $flags);
}
}
public function all($flags = 0)
{
$all = array(
'repositories' => $this->getRepositories(),
);
foreach (array_keys($this->config) as $key) {
$all['config'][$key] = $this->get($key, $flags);
}
return $all;
}
public function raw()
{
return array(
'repositories' => $this->getRepositories(),
'config' => $this->config,
);
}
/**
* Checks whether a setting exists
*
* @param string $key
* @return bool
*/
public function has($key)
{
return array_key_exists($key, $this->config);
}
/**
* Replaces {$refs} inside a config string
*
* @param string|int|null $value a config string that can contain {$refs-to-other-config}
* @param int $flags Options (see class constants)
* @return string|int|null
*/
private function process($value, $flags)
{
$config = $this;
if (!is_string($value)) {
return $value;
}
return preg_replace_callback('#\{\$(.+)\}#', function ($match) use ($config, $flags) {
return $config->get($match[1], $flags);
}, $value);
}
/**
* Turns relative paths in absolute paths without realpath()
*
* Since the dirs might not exist yet we can not call realpath or it will fail.
*
* @param string $path
* @return string
*/
private function realpath($path)
{
if (preg_match('{^(?:/|[a-z]:|[a-z0-9.]+://)}i', $path)) {
return $path;
}
return $this->baseDir . '/' . $path;
}
/**
* Reads the value of a Composer environment variable
*
* This should be used to read COMPOSER_ environment variables
* that overload config values.
*
* @param string $var
* @return string|bool
*/
private function getComposerEnv($var)
{
if ($this->useEnvironment) {
return getenv($var);
}
return false;
}
private function disableRepoByName($name)
{
if (isset($this->repositories[$name])) {
unset($this->repositories[$name]);
} elseif ($name === 'packagist') { // BC support for default "packagist" named repo
unset($this->repositories['packagist.org']);
}
}
/**
* Validates that the passed URL is allowed to be used by current config, or throws an exception.
*
* @param string $url
* @param IOInterface $io
*/
public function prohibitUrlByConfig($url, IOInterface $io = null)
{
// Return right away if the URL is malformed or custom (see issue #5173)
if (false === filter_var($url, FILTER_VALIDATE_URL)) {
return;
}
// Extract scheme and throw exception on known insecure protocols
$scheme = parse_url($url, PHP_URL_SCHEME);
if (in_array($scheme, array('http', 'git', 'ftp', 'svn'))) {
if ($this->get('secure-http')) {
throw new TransportException("Your configuration does not allow connections to $url. See https://getcomposer.org/doc/06-config.md#secure-http for details.");
} elseif ($io) {
$host = parse_url($url, PHP_URL_HOST);
if (!isset($this->warnedHosts[$host])) {
$io->writeError("<warning>Warning: Accessing $host over $scheme which is an insecure protocol.</warning>");
}
$this->warnedHosts[$host] = true;
}
}
}
/**
* Used by long-running custom scripts in composer.json
*
* "scripts": {
* "watch": [
* "Composer\\Config::disableProcessTimeout",
* "vendor/bin/long-running-script --watch"
* ]
* }
*/
public static function disableProcessTimeout()
{
// Override global timeout set earlier by environment or config
ProcessExecutor::setTimeout(0);
}
}