git_auto_deploy/index.php

<?php

// Your Token
$toCheckToken = 'your_to_verify_token';

// Your valid ip address
$validIP = array('123.45.67.89');

// Uncomment to set log
//$logFile = '/tmp/deploy.log';

$remoteIP = $_SERVER['REMOTE_ADDR'];
$time = date("Y-m-d H:i:s");

if ($logFile) {
    $log = true;
    $fs = fopen($logFile, 'a');
    fwrite($fs, "[start deploy] time:{$time}".PHP_EOL);
}

# Check IP
if (!in_array($remoteIP, $validIP)) {
    $msg = "Invalid IP:".$remoteIP;
    echo $msg;
    $log && fwrite($fs, $msg.PHP_EOL);
    exit(0);
}

# Decode data
$json = file_get_contents("php://input");
$data = json_decode($json);
if (!$data || empty($data)) {
    $data = (object) $_POST;
}

# Check token
if ($data->token != $toCheckToken) {
    $msg = "Invalid token:".$data->token;
    echo $msg;
    $log && fwrite($fs, $msg.PHP_EOL);
    exit(0);
}

# Check function
if (!function_exists('exec')) {
    echo "exec funciton is not avaiable!";
    exit(0);
}

# Exec update script
exec("sh auto_deploy.sh",$output);
foreach ($output as $val) {
	echo $val."\n";
}

# log
$msg = "Finish auto deploy at ".$time;
$log && fwrite($fs, $msg.PHP_EOL);
$fs && fclose($fs);