function check_websites_for_change()
{
global $websites_to_check;
$snoopy = new Snoopy();
$snoopy->agent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)";
$snoopy->maxredirs = 2;
$snoopy->offsiteok = true;
$snoopy->expandlinks = false;
echo "In here";
foreach ($websites_to_check as $websitename => $websiteurl) {
//only check if the page was fetched and responded with a 200
if ($snoopy->fetch($websiteurl)) {
if ($snoopy->status == 200) {
$response = $snoopy->results;
$filename = DUMP_LOCATION . strtolower($websitename) . ".dump";
if (file_exists($filename)) {
$oldpage = read_content($filename);
//something changed, send email alert
if (md5($oldpage) != md5($response)) {
$subject = "URL Content Has Changed for " . $websitename;
$body = "URL: " . $websiteurl . " Content Changed";
email_notify($subject, $body);
//overwrite old page with new page for new checks
write_content($filename, $response);
}
} else {
/*
* if file does not exist this is the first time we are loading it
* this will create the dump file and it will be used for compare next time
*/
write_content($filename, $response);
}
}
}
}
}
/**
* find_files_and_replace_absolute find files and search and replace absolute paths with relative paths
* @param $dir string the directory where to start
* @param $pattern string the type of files on which to apply the search and replace
* @param $root_path string the root path
*/
function find_files_and_replace_absolute($dir = '.', $pattern = '/./', $root_path)
{
$prefix = $dir . '/';
$dir = dir($dir);
while (false !== ($file = $dir->read())) {
if ($file === '.' || $file === '..') {
continue;
}
$file = $prefix . $file;
if (is_dir($file)) {
find_files_and_replace_absolute($file, $pattern, $root_path);
}
if (preg_match($pattern, $file)) {
$content = read_content($file);
$backtrack = get_backtrack($root_path, $file, $pattern);
$content = format_content_for_local_use(get_site_url(), $backtrack, $content);
$content = str_replace('../fonts.g', 'fonts.g', $content);
$content = str_replace('../maxcdn.b', 'maxcdn.b', $content);
$content = str_replace('../cdnjs.c', 'cdnjs.c', $content);
$content = str_replace('../vjs.z', 'vjs.z', $content);
unlink($file);
// delete the file
write_content($file, $content);
}
}
}