webhook.php

<?php
require_once __DIR__.'/vendor/autoload.php';

use Symfony\Component\Process\Process;
use Symfony\Component\Yaml\Yaml;

if (!file_exists(__DIR__.'/config.yml')) {
    echo "Please, define your satis configuration in a config.yml file.\nYou can use the config.yml.dist as a template.";
    exit(-1);
}

$defaults = array(
    'bin' => 'bin/satis',
    'json' => 'satis.json',
    'webroot' => 'web/',
    'user' => null,
    'secret' => null
);
$config = Yaml::parse(__DIR__.'/config.yml');
$config = array_merge($defaults, $config);

$errors = array();
if (!file_exists($config['bin'])) {
    $errors[] = 'The Satis bin could not be found.';
}

if (!file_exists($config['json'])) {
    $errors[] = 'The satis.json file could not be found.';
}

if (!file_exists($config['webroot'])) {
    $errors[] = 'The webroot directory could not be found.';
}

if (!empty($errors)) {
    echo 'The build cannot be run due to some errors. Please, review them and check your config.yml:'."\n";
    foreach ($errors as $error) {
        echo '- '.$error."\n";
    }
    exit(-1);
}

// Determine GIT provider
if (isset($_SERVER['HTTP_X_GITHUB_EVENT'])) {
    $gitProvider = 'github';
}
elseif (isset($_SERVER['HTTP_X_GITLAB_EVENT']))  {
    $gitProvider = 'gitlab';
}
elseif (isset($_SERVER['User-Agent']) && $_SERVER['User-Agent'] === 'Bitbucket-Webhooks/2.0') {
    $gitProvider = 'bitbucket';
}
else {
    $gitProvider = 'general';
}

switch ($gitProvider) {

    case 'github':
        // Read the JSON data from GitHub
        $rawPost = file_get_contents('php://input');
        $githubData = json_decode($rawPost);

        // Check the secret
        $header = $_SERVER['HTTP_X_HUB_SIGNATURE'];
        list($algo, $hash) = explode('=', $_SERVER['HTTP_X_HUB_SIGNATURE'], 2) + array('', '');
        try {
            if ($hash !== hash_hmac($algo, $rawPost, $config['secret'])) {
                throw new \Exception('Hook secret does not match.');
            }
        }
        catch (Exception $e) {
            header('HTTP/1.1 403 Forbidden');
            echo $e->getMessage();die;
        }

        // Get the repo URL's
        $cloneUrl = $githubData->repository->clone_url;
        $sshUrl = $githubData->repository->ssh_url;
        break;

    case 'gitlab':
        // Read the JSON data from GitLab
        $rawPost = file_get_contents('php://input');
        $data = json_decode($rawPost);

        // Get the repo URL's
        $cloneUrl = 'https://bitbucket.org/' . $data->repository->full_name . ".git";
        $sshUrl = 'git@bitbucket.org:' . $data->repository->full_name . ".git";
        break;

    case 'bitbucket':
        $rawPost = file_get_contents('php://input');
        $gitlabData = json_decode($rawPost);

        // Get the repo URL's
        $cloneUrl = $gitlabData->project->http_url;
        $sshUrl = $gitlabData->project->ssh_url;
        break;

    default:
}

// Read the satis JSON
$satisData = json_decode(file_get_contents('satis.json'));

$command = null;

if ($gitProvider === 'github' || $gitProvider === 'gitlab') {
    // Update a specific repository if the webhook call came from GitHub or GitLab
    foreach($satisData->repositories as $repository) {
        if ($repository->url === $cloneUrl || $repository->url === $sshUrl) {
            $repositoryUrl = $repository->url;
        }
    }

    $command = sprintf('%s build --repository-url %s %s %s', $config['bin'], $repositoryUrl, $config['json'], $config['webroot']);
}
else {
    // Update all repositories if the webhook didn't come from GitHub or GitLab
    $command = sprintf('%s build %s %s', $config['bin'], $config['json'], $config['webroot']);
}

if (null !== $config['user'] && !is_null($command)) {
    $command = sprintf('sudo -u %s -i %s', $config['user'], $command);
}

$process = new Process($command);
$exitCode = $process->run(function ($type, $buffer) {
    if ('err' === $type) {
        echo 'E';
        error_log($buffer);
    } else {
        echo '.';
    }
});

echo "\n\n" . ($exitCode === 0 ? 'Successful rebuild!' : 'Oops! An error occured!') . "\n";