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<?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\Util;
use Composer\Factory;
use Composer\IO\IOInterface;
use Composer\Config;
use Composer\Downloader\TransportException;
/**
* @author Paul Wenke <wenke.paul@gmail.com>
*/
class Bitbucket
{
/** @var IOInterface */
private $io;
/** @var Config */
private $config;
/** @var ProcessExecutor */
private $process;
/** @var HttpDownloader */
private $httpDownloader;
/** @var array */
private $token = array();
/** @var int|null */
private $time;
const OAUTH2_ACCESS_TOKEN_URL = 'https://bitbucket.org/site/oauth2/access_token';
/**
* Constructor.
*
* @param IOInterface $io The IO instance
* @param Config $config The composer configuration
* @param ProcessExecutor $process Process instance, injectable for mocking
* @param HttpDownloader $httpDownloader Remote Filesystem, injectable for mocking
* @param int $time Timestamp, injectable for mocking
*/
public function __construct(IOInterface $io, Config $config, ProcessExecutor $process = null, HttpDownloader $httpDownloader = null, $time = null)
{
$this->io = $io;
$this->config = $config;
$this->process = $process ?: new ProcessExecutor($io);
$this->httpDownloader = $httpDownloader ?: Factory::createHttpDownloader($this->io, $config);
$this->time = $time;
}
/**
* @return string
*/
public function getToken()
{
if (!isset($this->token['access_token'])) {
return '';
}
return $this->token['access_token'];
}
/**
* Attempts to authorize a Bitbucket domain via OAuth
*
* @param string $originUrl The host this Bitbucket instance is located at
* @return bool true on success
*/
public function authorizeOAuth($originUrl)
{
if ($originUrl !== 'bitbucket.org') {
return false;
}
// if available use token from git config
if (0 === $this->process->execute('git config bitbucket.accesstoken', $output)) {
$this->io->setAuthentication($originUrl, 'x-token-auth', trim($output));
return true;
}
return false;
}
/**
* @return bool
*/
private function requestAccessToken()
{
try {
$response = $this->httpDownloader->get(self::OAUTH2_ACCESS_TOKEN_URL, array(
'retry-auth-failure' => false,
'http' => array(
'method' => 'POST',
'content' => 'grant_type=client_credentials',
),
));
$this->token = $response->decodeJson();
} catch (TransportException $e) {
if ($e->getCode() === 400) {
$this->io->writeError('<error>Invalid OAuth consumer provided.</error>');
$this->io->writeError('This can have two reasons:');
$this->io->writeError('1. You are authenticating with a bitbucket username/password combination');
$this->io->writeError('2. You are using an OAuth consumer, but didn\'t configure a (dummy) callback url');
return false;
}
if (in_array($e->getCode(), array(403, 401))) {
$this->io->writeError('<error>Invalid OAuth consumer provided.</error>');
$this->io->writeError('You can also add it manually later by using "composer config --global --auth bitbucket-oauth.bitbucket.org <consumer-key> <consumer-secret>"');
return false;
}
throw $e;
}
return true;
}
/**
* Authorizes a Bitbucket domain interactively via OAuth
*
* @param string $originUrl The host this Bitbucket 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);
}
$url = 'https://support.atlassian.com/bitbucket-cloud/docs/use-oauth-on-bitbucket-cloud/';
$this->io->writeError(sprintf('Follow the instructions on %s', $url));
$this->io->writeError(sprintf('to create a consumer. It will be stored in "%s" for future use by Composer.', $this->config->getAuthConfigSource()->getName()));
$this->io->writeError('Ensure you enter a "Callback URL" (http://example.com is fine) or it will not be possible to create an Access Token (this callback url will not be used by composer)');
$consumerKey = trim($this->io->askAndHideAnswer('Consumer Key (hidden): '));
if (!$consumerKey) {
$this->io->writeError('<warning>No consumer key given, aborting.</warning>');
$this->io->writeError('You can also add it manually later by using "composer config --global --auth bitbucket-oauth.bitbucket.org <consumer-key> <consumer-secret>"');
return false;
}
$consumerSecret = trim($this->io->askAndHideAnswer('Consumer Secret (hidden): '));
if (!$consumerSecret) {
$this->io->writeError('<warning>No consumer secret given, aborting.</warning>');
$this->io->writeError('You can also add it manually later by using "composer config --global --auth bitbucket-oauth.bitbucket.org <consumer-key> <consumer-secret>"');
return false;
}
$this->io->setAuthentication($originUrl, $consumerKey, $consumerSecret);
if (!$this->requestAccessToken()) {
return false;
}
// store value in user config
$this->storeInAuthConfig($originUrl, $consumerKey, $consumerSecret);
// Remove conflicting basic auth credentials (if available)
$this->config->getAuthConfigSource()->removeConfigSetting('http-basic.' . $originUrl);
$this->io->writeError('<info>Consumer stored successfully.</info>');
return true;
}
/**
* Retrieves an access token from Bitbucket.
*
* @param string $originUrl
* @param string $consumerKey
* @param string $consumerSecret
* @return string
*/
public function requestToken($originUrl, $consumerKey, $consumerSecret)
{
if (!empty($this->token) || $this->getTokenFromConfig($originUrl)) {
return $this->token['access_token'];
}
$this->io->setAuthentication($originUrl, $consumerKey, $consumerSecret);
if (!$this->requestAccessToken()) {
return '';
}
$this->storeInAuthConfig($originUrl, $consumerKey, $consumerSecret);
return $this->token['access_token'];
}
/**
* Store the new/updated credentials to the configuration
* @param string $originUrl
* @param string $consumerKey
* @param string $consumerSecret
*/
private function storeInAuthConfig($originUrl, $consumerKey, $consumerSecret)
{
$this->config->getConfigSource()->removeConfigSetting('bitbucket-oauth.'.$originUrl);
$time = null === $this->time ? time() : $this->time;
$consumer = array(
"consumer-key" => $consumerKey,
"consumer-secret" => $consumerSecret,
"access-token" => $this->token['access_token'],
"access-token-expiration" => $time + $this->token['expires_in'],
);
$this->config->getAuthConfigSource()->addConfigSetting('bitbucket-oauth.'.$originUrl, $consumer);
}
/**
* @param string $originUrl
* @return bool
*/
private function getTokenFromConfig($originUrl)
{
$authConfig = $this->config->get('bitbucket-oauth');
if (
!isset($authConfig[$originUrl]['access-token'], $authConfig[$originUrl]['access-token-expiration'])
|| time() > $authConfig[$originUrl]['access-token-expiration']
) {
return false;
}
$this->token = array(
'access_token' => $authConfig[$originUrl]['access-token'],
);
return true;
}
}
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