Авторизация в сервисах Google

<?php
 
/**
 * Log in to Google account and go to account page
 *
 */
 
$USERNAME = 'youraccount@gmail.com';
$PASSWORD = 'password';
$COOKIEFILE = 'cookies.txt';
 
// initialize curl handle used for all requests
$ch = curl_init();
 
// set some options on the handle
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:49.0) Gecko/20100101 Firefox/49.0");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_COOKIEJAR, $COOKIEFILE);
curl_setopt($ch, CURLOPT_COOKIEFILE, $COOKIEFILE);
curl_setopt($ch, CURLOPT_HEADER, 0);  
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 120);
curl_setopt($ch, CURLOPT_TIMEOUT, 120);
 
// url of our first request fetches the account login page
curl_setopt($ch, CURLOPT_URL, 
  'https://accounts.google.com/ServiceLogin?hl=en&service=alerts&continue=http://www.google.com/alerts/manage');
$data = curl_exec($ch);
 
// extract form fields from account login page
$formFields = getFormFields($data);
 
// inject email and password into form
$formFields['Email']  = $USERNAME;
$formFields['Passwd'] = $PASSWORD;
unset($formFields['PersistentCookie']);
 
$post_string = http_build_query($formFields); // build urlencoded POST string for login
 
// set url to login page as a POST request
curl_setopt($ch, CURLOPT_URL, 'https://accounts.google.com/ServiceLoginAuth');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_string);
 
// execute login request
$result = curl_exec($ch);
 
// check for "Redirecting" message in title to indicate success
// based on your language - you may need to change this to match some other string
if (strpos($result, '<title>Redirecting') === false) {
    die("Login failed");
    var_dump($result);
}
 
// login likely succeeded - request account page; unset POST so we do a regular GET
curl_setopt($ch, CURLOPT_URL, 'https://myaccount.google.com/?utm_source=OGB');
curl_setopt($ch, CURLOPT_POST, 0);
curl_setopt($ch, CURLOPT_POSTFIELDS, null);
 
// execute request for login page using our cookies
$result = curl_exec($ch);
 
echo $result;
 
 
// helpef functions below
 
// find google "#gaia_loginform" for logging in
function getFormFields($data)
{
    if (preg_match('/(<form.*?id=.?gaia_loginform.*?<\/form>)/is', $data, $matches)) {
        $inputs = getInputs($matches[1]);
 
        return $inputs;
    } else {
        die('didnt find login form');
    }
}
 
// extract all <input fields from a form
function getInputs($form)
{
    $inputs = array();
 
    $elements = preg_match_all('/(<input[^>]+>)/is', $form, $matches);
 
    if ($elements > 0) {
        for($i = 0; $i < $elements; $i++) {
            $el = preg_replace('/\s{2,}/', ' ', $matches[1][$i]);
 
            if (preg_match('/name=(?:["\'])?([^"\'\s]*)/i', $el, $name)) {
                $name  = $name[1];
                $value = '';
 
                if (preg_match('/value=(?:["\'])?([^"\'\s]*)/i', $el, $value)) {
                    $value = $value[1];
                }
 
                $inputs[$name] = $value;
            }
        }
    }
 
    return $inputs;
}