PHP webhook script (bitbucket) - php

Question

I'm trying to attempt using a webhook script so that I can just commit locally and have the script triggered server-side and pull in any change.
Now if I login to the server via SSH and run php webhook.php the cript is triggered successfully and the files are updated. So I know the file does work. But if I make edits to the files, commit and push to master, I'm not seeing the files updated.
The log file produced by the script suggests everything is fine, but clearly it's not.
My file structure is like this:
var
www
my-project
- webhook.php
repo-folder
So the file should be pulling the files into repo-folder and the webhook.php is set as the webhook via the bitbucket control panel. If I view the log within bitbucket, it's showing a successful request every time I push a commit.
The script:
<?php
date_default_timezone_set('Europe/London');
class Deploy {
/**
* A callback function to call after the deploy has finished.
*
* #var callback
*/
public $post_deploy;
/**
* The name of the file that will be used for logging deployments. Set to
* FALSE to disable logging.
*
* #var string
*/
private $_log = 'deployments.log';
/**
* The timestamp format used for logging.
*
* #link http://www.php.net/manual/en/function.date.php
* #var string
*/
private $_date_format = 'Y-m-d H:i:sP';
/**
* The name of the branch to pull from.
*
* #var string
*/
private $_branch = 'master';
/**
* The name of the remote to pull from.
*
* #var string
*/
private $_remote = 'origin';
/**
* The directory where your website and git repository are located, can be
* a relative or absolute path
*
* #var string
*/
private $_directory;
/**
* Sets up defaults.
*
* #param string $directory Directory where your website is located
* #param array $data Information about the deployment
*/
public function __construct($directory, $options = array())
{
// Determine the directory path
$this->_directory = realpath($directory).DIRECTORY_SEPARATOR;
$available_options = array('log', 'date_format', 'branch', 'remote');
foreach ($options as $option => $value)
{
if (in_array($option, $available_options))
{
$this->{'_'.$option} = $value;
}
}
$this->log('Attempting deployment...');
}
/**
* Writes a message to the log file.
*
* #param string $message The message to write
* #param string $type The type of log message (e.g. INFO, DEBUG, ERROR, etc.)
*/
public function log($message, $type = 'INFO')
{
if ($this->_log)
{
// Set the name of the log file
$filename = $this->_log;
if ( ! file_exists($filename))
{
// Create the log file
file_put_contents($filename, '');
// Allow anyone to write to log files
chmod($filename, 0666);
}
// Write the message into the log file
// Format: time --- type: message
file_put_contents($filename, date($this->_date_format).' --- '.$type.': '.$message.PHP_EOL, FILE_APPEND);
}
}
/**
* Executes the necessary commands to deploy the website.
*/
public function execute()
{
try
{
// Make sure we're in the right directory
chdir($this->_directory);
$this->log('Changing working directory... ');
// Discard any changes to tracked files since our last deploy
exec('git reset --hard HEAD', $output);
$this->log('Reseting repository... '.implode(' ', $output));
// Update the local repository
exec('git pull '.$this->_remote.' '.$this->_branch, $output);
$this->log('Pulling in changes... '.implode(' ', $output));
// Secure the .git directory
exec('chmod -R og-rx .git');
$this->log('Securing .git directory... ');
if (is_callable($this->post_deploy))
{
call_user_func($this->post_deploy, $this->_data);
}
$this->log('Deployment successful.');
}
catch (Exception $e)
{
$this->log($e, 'ERROR');
}
}
}
// This is just an example
$deploy = new Deploy('/var/www/site-name/repo-name');
$deploy->execute();
?>

Answer 1

i was researching this more and the best way you can do is like i mention find out what is the user being used by apache server by building a php script and run the shell_exec('whoami'); and run on your browser to see that user it is.
Then on your document root for your website mine per example is /var/www you would need to create shh keys for this directory when you do that also add a config file with the host bitbucket and reference to the key you created.
Add the key to bitbucket
then you would need to add permission for apache to run the git command run the command visudo and add:
yourapacheuser ALL=(yourapacheuser) NOPASSWD: /usr/bin/ #the /usr/bin in my case is where i have installed git so you need to see what is the directory path where you install git.
After that you should be able to run your script without problems, in case it complains about a requiretty message then on visudo again add: Defaults:yourapacheuser !requiretty
hope it helps

Answer 2

did you configure SSH keys for the server you are using in bitbucket and add the webhook with the url of your script?

Answer 3

As user1361389 wrote you need to know what users are running the different processes. This is how I did on an Amazon Ubuntu instance.
I have a php file that calls a bash script:
shell_exec("sudo -u ubuntu /home/ubuntu/gitpull.sh");
Create SSH keys for user ubuntu and uploaded the public key to bitbucket.
Also, make sure that the php files on your server are owned by the correct user. In my case ubuntu.
You then need to impersonate ubuntu when calling the php file to deploy code. Add this line in the sudoer file (>sudo visudo )
www-data ALL=(ubuntu) NOPASSWD: /path/to/gitpull.sh
Then in bitbucket add the URL to your hook.