attributes() as $key => $value) {
$this->$key = $value->__toString();
}
# Standardhomepage metager.de
if (!isset($this->homepage)) {
$this->homepage = "https://metager.de";
}
# Speichert die XML der Engine
$this->engine = $engine->asXML();
# Cache Standarddauer 60
if (!isset($this->cacheDuration)) {
$this->cacheDuration = 60;
}
$this->enabled = true;
# Eine Suchmaschine kann automatisch temporär deaktiviert werden, wenn es Verbindungsprobleme gab:
if (isset($this->disabled) && strtotime($this->disabled) <= time()) {
# In diesem Fall ist der Timeout der Suchmaschine abgelaufen.
$this->enable($metager->getSumaFile(), "Die Suchmaschine " . $this->name . " wurde wieder eingeschaltet.");
} elseif (isset($this->disabled) && strtotime($this->disabled) > time()) {
$this->enabled = false;
return;
}
$this->useragent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.1";
$this->ip = $metager->getIp();
$this->gefVon = "homepage . "\" target=\"_blank\">" . $this->displayName . "";
$this->startTime = microtime();
# Suchstring generieren
$q = "";
if (isset($this->hasSiteSearch) && $this->hasSiteSearch === "1") {
if (strlen($metager->getSite()) === 0) {
$q = $metager->getQ();
} else {
$q = $metager->getQ() . " site:" . $metager->getSite();
}
} else {
$q = $metager->getQ();
}
$this->getString = $this->generateGetString($q, $metager->getUrl(), $metager->getLanguage(), $metager->getCategory());
$this->hash = md5($this->host . $this->getString . $this->port . $this->name);
$this->resultHash = $metager->getHashCode();
$this->canCache = $metager->canCache();
if (!isset($this->additionalHeaders)) {$this->additionalHeaders = "";}
}
abstract public function loadResults($result);
# ???
public function getNext(MetaGer $metager, $result)
{
}
# Prüft, ob die Suche bereits gecached ist, ansonsted wird sie als Job dispatched
public function startSearch(\App\MetaGer $metager)
{
if ($this->canCache && Cache::has($this->hash)) {
$this->cached = true;
$this->retrieveResults($metager);
} else {
/* Die Anfragen an die Suchmaschinen werden nun von der Laravel-Queue bearbeitet:
* Hinweis: solange in der .env der QUEUE_DRIVER auf "sync" gestellt ist, werden die Abfragen
* nacheinander abgeschickt.
* Sollen diese Parallel verarbeitet werden, muss ein anderer QUEUE_DRIVER verwendet werden.
* siehe auch: https://laravel.com/docs/5.2/queues
*/
$this->dispatch(new Search($this->resultHash, $this->host, $this->port, $this->name, $this->getString, $this->useragent, $this->additionalHeaders));
}
}
# Ruft die Ranking-Funktion aller Ergebnisse auf.
public function rank($eingabe)
{
foreach ($this->results as $result) {
$result->rank($eingabe);
}
}
# Magic ???
private function setStatistic($key, $val)
{
$oldVal = floatval(Redis::hget($this->name, $key)) * $this->uses;
$newVal = ($oldVal + max($val, 0)) / $this->uses;
Redis::hset($this->name, $key, $newVal);
$this->$key = $newVal;
}
# Entfernt wenn gesetzt das disabled="1" für diese Suchmaschine aus der sumas.xml
public function enable($sumaFile, $message)
{
Log::info($message);
$xml = simplexml_load_file($sumaFile);
unset($xml->xpath("//sumas/suma[@name='" . $this->name . "']")['0']['disabled']);
$xml->saveXML($sumaFile);
$this->enabled = true;
}
public function closeFp()
{
fclose($this->fp);
}
# Öffnet einen neuen Socket für diese Engine
public function getSocket()
{
$number = Redis::hget('search.' . $this->hash, $this->name);
if ($number === null) {
die("test");
return null;
} else {
return pfsockopen($this->getHost() . ":" . $this->port . "/$number", $this->port, $errstr, $errno, 1);
}
}
# Fragt die Ergebnisse von Redis ab und lädt Sie
public function retrieveResults(MetaGer $metager)
{
if ($this->loaded) {
return true;
}
$body = "";
if ($this->canCache && $this->cacheDuration > 0 && Cache::has($this->hash)) {
$body = Cache::get($this->hash);
} elseif (Redis::hexists('search.' . $this->resultHash, $this->name)) {
$body = Redis::hget('search.' . $this->resultHash, $this->name);
if ($this->canCache && $this->cacheDuration > 0) {
Cache::put($this->hash, $body, $this->cacheDuration);
}
}
if ($body !== "") {
$this->loadResults($body);
$this->getNext($metager, $body);
$this->loaded = true;
Redis::hdel('search.' . $this->hash, $this->name);
return true;
} else {
return false;
}
}
public function shutdown()
{
Redis::del($this->host . "." . $this->socketNumber);
}
# Erstellt den für die Get-Anfrage genutzten Host-Link
protected function getHost()
{
$return = "";
if ($this->port === "443") {
$return .= "tls://";
} else {
$return .= "tcp://";
}
$return .= $this->host;
return $return;
}
# Erstellt den für die Get-Anfrage genutzten String
private function generateGetString($query, $url, $language, $category)
{
$getString = "";
# Skript:
if (strlen($this->skript) > 0) {
$getString .= $this->skript;
} else {
$getString .= "/";
}
# FormData:
if (strlen($this->formData) > 0) {
$getString .= "?" . $this->formData;
}
# Wir müssen noch einige Platzhalter in dem GET-String ersetzen:
# Useragent
if (strpos($getString, "<>")) {
$getString = str_replace("<>", $this->urlEncode($this->useragent), $getString);
}
# Query
if (strpos($getString, "<>")) {
$getString = str_replace("<>", $this->urlEncode($query), $getString);
}
# IP
if (strpos($getString, "<>")) {
$getString = str_replace("<>", $this->urlEncode($this->ip), $getString);
}
# Language
if (strpos($getString, "<>")) {
$getString = str_replace("<>", $this->urlEncode($language), $getString);
}
# Category
if (strpos($getString, "<>")) {
$getString = str_replace("<>", $this->urlEncode($category), $getString);
}
# Affildata
if (strpos($getString, "<>")) {
$getString = str_replace("<>", $this->getOvertureAffilData($url), $getString);
}
return $getString;
}
# Wandelt einen String nach aktuell gesetztem inputEncoding dieser Searchengine in URL-Format um
protected function urlEncode($string)
{
if (isset($this->inputEncoding)) {
return urlencode(mb_convert_encoding($string, $this->inputEncoding));
} else {
return urlencode($string);
}
}
# Liefert Sonderdaten für Yahoo
private function getOvertureAffilData($url)
{
$affil_data = 'ip=' . $this->ip;
$affil_data .= '&ua=' . $this->useragent;
if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$affil_data .= '&xfip=' . $_SERVER['HTTP_X_FORWARDED_FOR'];
}
$affilDataValue = $this->urlEncode($affil_data);
# Wir benötigen die ServeUrl:
$serveUrl = $this->urlEncode($url);
return "&affilData=" . $affilDataValue . "&serveUrl=" . $serveUrl;
}
public function isEnabled()
{
return $this->enabled;
}
# Artefaktmethoden
public function getCurlInfo()
{
return curl_getinfo($this->ch);
}
public function getCurlErrors()
{
return curl_errno($this->ch);
}
public function addCurlHandle($mh)
{
curl_multi_add_handle($mh, $this->ch);
}
public function removeCurlHandle($mh)
{
curl_multi_remove_handle($mh, $this->ch);
}
}