Automated Android 4.4 Kitkat / Nexus 5 / Factory Image Release email alert.

watchAndroid44Nexus5.cronjob.php

<?php
ini_set('max_execution_time', 600);
if (!ini_get('date.timezone') && function_exists('date_default_timezone_set')) {
  date_default_timezone_set('UTC'); // You may change this (eg 'Europe/Berlin').
}

/**
 * Android 4.4 Kitkat / Nexus 5 / Factory Image Release email alert cronjob script.
 *
 * 1. Download this script.
 *    Browser download: https://gist.github.com/eyecatchup/7017108/download/
 *    Or, for the console users, one of:
 * # wget --no-check-certificate https://gist.github.com/eyecatchup/7017108/raw/ /path/android.cron.php
 * # wget --no-check-certificate https://gist.github.com/eyecatchup/7017108/raw/watchAndroid44Nexus5.cronjob.php
 *
 * 2. Set the value for the variable $notifyEmailAddress to your email address.
 *    (Optionally, set a value for the $deviceCodename variable.)
 *
 * 3. Create a new cronjob (for a Windows Xampp stack alternative see: http://stackoverflow.com/a/4231634/624466).
 *    On your console, type:
 * # crontab -e
 *
 * 4. Paste the following (adjust script/logfile path):
 * 0 * * * * php /absolute/path/to/script.php >> /absolute/path/to/cronjob.log
 *
 * Exit crontab and you'Re done. You'll get an email as soon as there's something to checkout.
 */

/**
 * CHANGE THIS TO YOUR EMAIL ADDRESS !!!
 */
$notifyEmailAddress = '[email protected]';

/**
 * Change the following variable's value from "" to e.g. "occam", 
 * to get notified as soon as the factory image for "occam" (Nexus 4) 
 * is available.
 */ 
$deviceCodename = ""; 


/**
 * NO NEED FOR CHANGES BELOW
 */
$urls = array(
  //check potential product URLs
  'checkHttpStatus' => array(
    'www.google.com/nexus/5/',
    'www.android.com/devices/detail/nexus-5',
    'www.android.com/devices/images/device/nexus-5/large/0',
    'www.android.com/about/kitkat/',
    'developer.android.com/about/versions/android-4.4.html',
    'developer.android.com/sdk/api_diff/19/changes/changes-summary.html',
    'android.googlesource.com/device/lge/hammerhead/',
    'android.googlesource.com/device/ti/hammerhead',
    'static.googleusercontent.com/external_content/untrusted_dlcp/source.android.com/en//compatibility/android-4.4-cdd.pdf',
  ),
  //check for string "Nexus 5"  (case-insensitive)
  'checkStringNexus5' => array(
    'www.android.com/about/',
    'www.android.com/whatsnew/',
    'play.google.com/store/devices',
    'developers.google.com/android/nexus/images',
    'developers.google.com/android/nexus/drivers',
    'source.android.com/source/build-numbers.html',
    'source.android.com/source/building-devices.html',
    'source.android.com/source/building-kernels.html',
  ),
  //check for string "Hammerhead" (case-insensitive)
  'checkStringHammerhead' => array(
    'developers.google.com/android/nexus/images',
    'developers.google.com/android/nexus/drivers',
    'source.android.com/source/building-devices.html',
    'source.android.com/source/building-kernels.html',
  ),
  //check for string "4.4"
  'checkStringAndroid44' => array(
    'www.android.com/whatsnew/',
    'www.android.com/about/',
    'source.android.com/',
    'developers.google.com/android/nexus/images',
    'developers.google.com/android/nexus/drivers',
    'source.android.com/source/build-numbers.html',
    'source.android.com/compatibility/downloads.html',
  )
);

class N5
{
  const UA = 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.69 Safari/537.36';

  public static function match($url, $regex) {
    $str = self::getHttpResponse("https://{$url}");
    return !$str ? false : (bool)preg_match("/{$regex}/iu", trim($str));
  }

  public static function getHttpResponse($url) {
    $ch = curl_init($url);
    curl_setopt_array($ch, array(
      CURLOPT_USERAGENT       => N5::UA,
      CURLOPT_RETURNTRANSFER  => 1,
      CURLOPT_CONNECTTIMEOUT  => 30,
      CURLOPT_FOLLOWLOCATION  => 1,
      CURLOPT_MAXREDIRS       => 3,
      CURLOPT_SSL_VERIFYPEER  => 0,
    ));
    $response = curl_exec($ch);
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);
    return 200 == (int)$httpCode ? $response : false;
  }

  public static function getHttpCode($url) {
    $ch = curl_init($url);
    curl_setopt_array($ch, array(
      CURLOPT_USERAGENT       => N5::UA,
      CURLOPT_RETURNTRANSFER  => 1,
      CURLOPT_CONNECTTIMEOUT  => 15,
      CURLOPT_FOLLOWLOCATION  => 1,
      CURLOPT_MAXREDIRS       => 3,
      CURLOPT_SSL_VERIFYPEER  => 0,
      CURLOPT_NOBODY          => 1,
    ));
    curl_exec($ch);
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);
    return (int)$httpCode;
  }
}

$found = array();

//check potential product URLs
foreach ($urls['checkHttpStatus'] as $url) {
  (200 == N5::getHttpCode("https://{$url}")) && array_push($found, "{$url} (product URL)");
}
//check for string "Nexus 5"  (case-insensitive)
foreach ($urls['checkStringNexus5'] as $url) {
  (false !== N5::match($url, 'nexus 5')) && array_push($found, "{$url} (contains string 'Nexus 5')");
}
//check for string "Hammerhead" (case-insensitive)
foreach ($urls['checkStringHammerhead'] as $url) {
  (false !== N5::match($url, 'hammerhead')) && array_push($found, "{$url} (contains string 'Hammerhead')");
}
//check for string "4.4"
foreach ($urls['checkStringAndroid44'] as $url) {
  (false !== N5::match($url, '4\.4')) && array_push($found, "{$url} (contains string '4.4')");
}

if (0 < strlen($deviceCodename)) {
  //check Kitkat factory image availability
  $deviceCodename = strtolower($deviceCodename);
  $str = N5::getHttpResponse('developers.google.com/android/nexus/images');
  $isKitkatFactoryImageAvailable = !$str ? false : (bool)preg_match('/#' . $deviceCodename . 'k/iu', trim($str));
  
  if ($isKitkatFactoryImageAvailable) {
  	$msg = 'The Kitkat Factory Image for ' . ucfirst($deviceCodename) . ' is available! Rush to https://developers.google.com/android/nexus/images#' . $deviceCodename . ' ;-)';
    mail($notifyEmailAddress, 'Android 4.4 Kitkat for ' . ucfirst($deviceCodename) . ' Alert', $msg);
    print trim($msg);
  }
}

if (0 < sizeof($found)) {
  $msg = 'Strike! Check the following URL(s):' . PHP_EOL;
  foreach ($found as $url) {
    $msg .= "https://{$url}" . PHP_EOL;
  }
  mail($notifyEmailAddress, 'Android 4.4 Kitkat / Nexus 5 Alert', $msg);
  print $msg;
}
else {
  printf('[%s]: Nothing found.' . PHP_EOL, date('Y/m/d H:i'));
}