<?php
// Brightkite Info
$username = ''; // Brightkite username
$password = ''; // Brightkite password
$place = ''; // Brightkite PlaceID

// Bit.ly Info
$login = ''; // Bit.ly Login
$apikey = ''; // bit.ly API key

// Google Info
$key = ''; // Post-Commit Authentication Key
$project = '';
$ignorecommits = array('Edited wiki page through web user interface.');

// No need to modify past this line unless your customizing
$data = file_get_contents("php://input");
$digest = hash_hmac("md5", $data, $key);

$hook = $_SERVER["HTTP_GOOGLE_CODE_PROJECT_HOSTING_HOOK_HMAC"];
if ($hook && ($hook == $digest)) {
	$data = json_decode($data, true);
	if (!in_array($data['revisions'][0]['message'], $ignorecommits)) {
		$ch = curl_init();
		$url = shorturl('http://code.google.com/p/' . $project . '/source/detail?r=' . $data['revisions'][0]['revision']);
		$message = ' @' . $data['revisions'][0]['author'] . ' just made a commit - ' . $data['revisions'][0]['message'];
		if (strlen($message)+strlen($url)+1 > 140) {
			$end = 140-(strlen($url)+1);
			$message = substr($message, 0, $end);
			$message = $message . ' ' . $url;
		} else {
			$message = $message . ' ' . $url;
		}
		$note = array('note[body]' => $message);
		curl_setopt($ch, CURLOPT_USERPWD, $username . ':' . $password); 
		curl_setopt($ch, CURLOPT_URL, 'http://brightkite.com/places/' . $place . '/notes.json'); 
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $note);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
		$response = curl_exec($ch);
		curl_close($ch);
		$json = json_decode($response, TRUE);
	}
}

function shorturl ($url) {
	global $login, $apikey;
	$data['version'] = '2.0.1';
	$data['longUrl'] = $url;
	$data['login'] = $login;
	$data['apiKey'] = $apikey;
	$data['format'] = 'json';
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, 'http://api.bit.ly/shorten'); 
	curl_setopt($ch, CURLOPT_POST, 1);
	curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
	$response = curl_exec($ch);
	curl_close($ch);
	$json = json_decode($response, TRUE);
	return $json['results'][$url]['shortUrl'];
}
?>