/**
* cron job to refresh image and data caches
*/
public static function refresh_caches()
{
set_time_limit(0);
self::clear_data_cache();
/* store IDs for names to get data */
$namedata = array();
/* number of names to get data for in one hit */
$namedata_limit = 20;
$all_names = wkwMediaWiki::get_all_names();
if ($all_names && count($all_names)) {
$cacheDir = self::get_cache_dir("images");
$logtxt = sprintf("\n============================\nCRON JOB STARTED %s\n============================\n", date("r"));
foreach ($all_names as $name) {
$filename = $cacheDir . "/" . $name->pageid . ".png";
$touched = strtotime($name->touched);
$since = time() - 60 * 60 * 24;
$refresh = false;
if (file_exists($filename)) {
/* see if there is an old image */
$linkimg = $cacheDir . "/" . md5($name->title) . ".png";
$linkname = $cacheDir . "/" . md5($name->title) . ",txt";
if (file_exists($linkimg) || file_exists($linkname)) {
@unlink($linkimg);
@unlink($linkname);
}
/* see if the page has been touched since the image was generated */
if (filemtime($filename) < $touched) {
$logtxt .= sprintf("%s: file exists but wiki page was touched more recently than the image was generated (filemtime: %s, touched: %s).\n", $name->title, date("d/m/Y H:i:s", filemtime($filename)), date("d/m/Y H:i:s", $touched));
$refresh = true;
}
} else {
$logtxt .= sprintf("%s: cache file doesn't exist\n", $name->title);
$refresh = true;
}
if ($refresh) {
wkwFontImage::generate($name);
wkwCache::clearCacheFor($name);
$namedata[] = $name->pageid;
}
}
foreach ($all_names as $name) {
$bio = wkwCache::get_cache_dir('bios') . $name->pageid . '.json';
if (!file_exists($bio) && count($namedata) <= $namedata_limit && !in_array($name->pageid, $namedata)) {
$namedata[] = $name->pageid;
}
}
if (count($namedata)) {
foreach ($namedata as $pageid) {
$logtxt .= "\nGetting links and biographical data for name " . $pageid . "\n";
wkwMediaWiki::get_linked_names($pageid);
wkwMediaWiki::get_page_data($nameid);
}
}
$logtxt .= sprintf("\n============================\nCRON JOB FINISHED %s\n============================\n", date("r"));
self::log($logtxt, "cron_log.txt");
}
}
