public static function downloadRecipeWithCache($url)
{
$cache_ttl = 86400 * 3;
// Target filename
$filename = FileUtil::tempFilenameFromUrl($url);
// Only fetch 1x per day
if (file_exists($filename) && filesize($filename) > 0 && time() - filemtime($filename) < $cache_ttl) {
error_log("Found file in cache: {$filename}");
$html = file_get_contents($filename);
} else {
// Fetch and cleanup the HTML
error_log("Downloading recipe from url: {$url}");
$html = FileUtil::downloadPage($url);
$html = RecipeParser_Text::forceUTF8($html);
$html = RecipeParser_Text::cleanupClippedRecipeHtml($html);
// Append some notes to the HTML
$comments = RecipeParser_Text::getRecipeMetadataComment($url, "curl");
$html = $comments . "\n\n" . $html;
error_log("Saving recipe to file {$filename}");
file_put_contents($filename, $html);
}
return $html;
}
