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composer/src/Composer/Util/GitLab.php

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2015-04-10 21:45:24 +00:00
<?php
/*
* This file is part of Composer.
*
* (c) Roshan Gautam <roshan.gautam@hotmail.com>
*
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\Util;
use Composer\IO\IOInterface;
use Composer\Config;
use Composer\Downloader\TransportException;
use Composer\Json\JsonFile;
/**
* @author Roshan Gautam <roshan.gautam@hotmail.com>
*/
class GitLab
{
protected $io;
protected $config;
protected $process;
protected $remoteFilesystem;
/**
* Constructor.
*
* @param IOInterface $io The IO instance
* @param Config $config The composer configuration
* @param ProcessExecutor $process Process instance, injectable for mocking
* @param RemoteFilesystem $remoteFilesystem Remote Filesystem, injectable for mocking
*/
public function __construct(IOInterface $io, Config $config, ProcessExecutor $process = null, RemoteFilesystem $remoteFilesystem = null)
{
$this->io = $io;
$this->config = $config;
$this->process = $process ?: new ProcessExecutor;
$this->remoteFilesystem = $remoteFilesystem ?: new RemoteFilesystem($io, $config);
}
/**
* Attempts to authorize a GitLab domain via OAuth
*
* @param string $originUrl The host this GitLab instance is located at
* @return bool true on success
*/
public function authorizeOAuth($originUrl)
{
if (!in_array($originUrl, $this->config->get('gitlab-domains'))) {
return false;
}
// if available use token from git config
if (0 === $this->process->execute('git config gitlab.accesstoken', $output)) {
$this->io->setAuthentication($originUrl, trim($output), 'oauth2');
return true;
}
return false;
}
/**
* Authorizes a GitLab domain interactively via OAuth
*
* @param string $originUrl The host this GitLab instance is located at
* @param string $message The reason this authorization is required
* @throws \RuntimeException
* @throws TransportException|\Exception
* @return bool true on success
*/
public function authorizeOAuthInteractively($originUrl, $message = null)
{
if ($message) {
$this->io->writeError($message);
}
$this->io->writeError(sprintf('A token will be created and stored in "%s", your password will never be stored', $this->config->getAuthConfigSource()->getName()));
$this->io->writeError('To revoke access to this token you can visit ' . $this->config->get('gitlab-domains')[0] . '/profile/applications');
$otp = null;
$attemptCounter = 0;
while ($attemptCounter++ < 5) {
try {
$response = $this->createToken($originUrl, $otp);
} catch (TransportException $e) {
// https://developer.GitLab.com/v3/#authentication && https://developer.GitLab.com/v3/auth/#working-with-two-factor-authentication
// 401 is bad credentials, or missing otp code
// 403 is max login attempts exceeded
if (in_array($e->getCode(), array(403, 401))) {
// in case of a 401, and authentication was previously provided
if (401 === $e->getCode() && $this->io->hasAuthentication($originUrl)) {
// check for the presence of otp headers and get otp code from user
$otp = $this->checkTwoFactorAuthentication($e->getHeaders());
// if given, retry creating a token using the user provided code
if (null !== $otp) {
continue;
}
}
if (401 === $e->getCode()) {
$this->io->writeError('Bad credentials.');
} else {
$this->io->writeError('Maximum number of login attempts exceeded. Please try again later.');
}
$this->io->writeError('You can also manually create a personal token at ' . $this->config->get('gitlab-domains')[0] . '/profile/applications');
$this->io->writeError('Add it using "composer config gitlab-oauth.' . $this->config->get('gitlab-domains')[0] . ' <token>"');
continue;
}
throw $e;
}
$this->io->setAuthentication($originUrl, $response['access_token'], 'oauth2');
$this->config->getConfigSource()->removeConfigSetting('gitlab-oauth.'.$originUrl);
// store value in user config
$this->config->getAuthConfigSource()->addConfigSetting('gitlab-oauth.'.$originUrl, $response['access_token']);
return true;
}
throw new \RuntimeException("Invalid GitLab credentials 5 times in a row, aborting.");
}
private function createToken($originUrl, $otp = null)
{
if (null === $otp || !$this->io->hasAuthentication($originUrl)) {
$username = $this->io->ask('Username: ');
$password = $this->io->askAndHideAnswer('Password: ');
$this->io->setAuthentication($originUrl, $username, $password);
}
$headers = array('Content-Type: application/x-www-form-urlencoded');
if ($otp) {
$headers[] = 'X-GitLab-OTP: ' . $otp;
}
$note = 'Composer';
if ($this->config->get('GitLab-expose-hostname') === true && 0 === $this->process->execute('hostname', $output)) {
$note .= ' on ' . trim($output);
}
$note .= ' [' . date('YmdHis') . ']';
$apiUrl = $originUrl ;
$data = http_build_query(
array(
'username' => $username,
'password' => $password,
'grant_type' => 'password',
)
);
$options = array(
'retry-auth-failure' => false,
'http' => array(
'method' => 'POST',
'header' => $headers,
'content' => $data
));
$json = $this->remoteFilesystem->getContents($originUrl, 'http://'. $apiUrl . '/oauth/token', false, $options);
$this->io->writeError('Token successfully created');
return JsonFile::parseJson($json);
}
private function checkTwoFactorAuthentication(array $headers)
{
$headerNames = array_map(
function ($header) {
return strtolower(strstr($header, ':', true));
},
$headers
);
if (false !== ($key = array_search('x-GitLab-otp', $headerNames))) {
list($required, $method) = array_map('trim', explode(';', substr(strstr($headers[$key], ':'), 1)));
if ('required' === $required) {
$this->io->writeError('Two-factor Authentication');
if ('app' === $method) {
$this->io->writeError('Open the two-factor authentication app on your device to view your authentication code and verify your identity.');
}
if ('sms' === $method) {
$this->io->writeError('You have been sent an SMS message with an authentication code to verify your identity.');
}
return $this->io->ask('Authentication Code: ');
}
}
return null;
}
}