<?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\Config;
use Composer\IO\IOInterface;

/**
* @author Jonas Renaudot <jonas.renaudot@gmail.com>
*/
class Hg
{
/**
* @var \Composer\IO\IOInterface
*/
private $io;

/**
* @var \Composer\Config
*/
private $config;

/**
* @var \Composer\Util\ProcessExecutor
*/
private $process;

public function __construct(IOInterface $io, Config $config, ProcessExecutor $process)
{
$this->io = $io;
$this->config = $config;
$this->process = $process;
}

public function runCommand($commandCallable, $url, $cwd)
{
$this->config->prohibitUrlByConfig($url, $this->io);

// Try as is
$command = call_user_func($commandCallable, $url);

if (0 === $this->process->execute($command, $ignoredOutput, $cwd)) {
return;
}

// Try with the authentication information available
if (preg_match('{^(https?)://((.+)(?:\:(.+))?@)?([^/]+)(/.*)?}mi', $url, $match) && $this->io->hasAuthentication($match[5])) {
$auth = $this->io->getAuthentication($match[5]);
$authenticatedUrl = $match[1] . '://' . rawurlencode($auth['username']) . ':' . rawurlencode($auth['password']) . '@' . $match[5] . (!empty($match[6]) ? $match[6] : null);

$command = call_user_func($commandCallable, $authenticatedUrl);

if (0 === $this->process->execute($command, $ignoredOutput, $cwd)) {
return;
}

$error = $this->process->getErrorOutput();
} else {
$error = 'The given URL (' . $url . ') does not match the required format (http(s)://(username:password@)example.com/path-to-repository)';
}

$this->throwException('Failed to clone ' . $url . ', ' . "\n\n" . $error, $url);
}

public static function sanitizeUrl($message)
{
return preg_replace_callback('{://(?P<user>[^@]+?):(?P<password>.+?)@}', function ($m) {
if (preg_match('{^[a-f0-9]{12,}$}', $m[1])) {
return '://***:***@';
}

return '://' . $m[1] . ':***@';
}, $message);
}

private function throwException($message, $url)
{
if (0 !== $this->process->execute('hg --version', $ignoredOutput)) {
throw new \RuntimeException(self::sanitizeUrl('Failed to clone ' . $url . ', hg was not found, check that it is installed and in your PATH env.' . "\n\n" . $this->process->getErrorOutput()));
}

throw new \RuntimeException(self::sanitizeUrl($message));
}
}