added one more bt site;added the option for choosing a site to search torrents

lib/Search/Sites/TPB.php

@@ -3,7 +3,7 @@
 namespace OCA\NCDownloader\Search\Sites;
 
 //The Piratebay
-class TPB
+class TPB implements searchBase
 {
     //html content
     private $content = null;

lib/Search/Sites/bitSearch.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace OCA\NCDownloader\Search\Sites;
+
+//bitsearch.to
+class bitSearch implements searchBase
+{
+    //html content
+    private $content = null;
+    public $baseUrl = "https://bitsearch.to/search";
+    private $query = null;
+
+    public function __construct($crawler, $client)
+    {
+        $this->client = $client;
+        $this->crawler = $crawler;
+    }
+    public function search($keyword)
+    {
+        $this->query = ['q' => trim($keyword), 'sort' => 'seeders'];
+        $this->searchUrl = $this->baseUrl;
+        //$this->setContent(file_get_contents(__DIR__ . "/BitSearch.html"));
+        $this->crawler->add($this->getContent());
+        return $this->parse();
+    }
+    public function setContent($content)
+    {
+        $this->content = $content;
+    }
+    public function getContent()
+    {
+        if ($this->content) {
+            return $this->content;
+        }
+        $response = $this->client->request('GET', $this->searchUrl, ['query' => $this->query]);
+        return $response->getContent();
+    }
+    public function parse()
+    {
+
+        $data = $this->crawler->filter(".w3-col.s12.mt-4 .search-result")->each(function ($node, $i) {
+
+            if ($node->getNode(0)) {
+                try {
+                    $title = $node->filter(".info h5.title")->text();
+                    $infoNode = $node->filter(".info .stats div");
+                    $count = $infoNode->count();
+                    $info = [];
+                    for ($i = 0; $i < $count; $i++) {
+                        $name = strtolower($infoNode->filter("img")->eq($i)->attr("alt"));
+                        $info[$name] = trim($infoNode->eq($i)->text());
+                    }
+                    $seeders = $info['seeder'];
+                    $info = sprintf("%s on %s", $info['size'], $info['date']);
+                    $magnetLink = $node->filter(".links.center-flex a:nth-child(2)")->attr("href");
+                    return ['title' => $title, 'data-link' => $magnetLink, 'seeders' => $seeders, 'info' => $info];
+                } catch (\Exception $e) {
+                    //echo $e->getMessage();
+                }
+            }
+
+        });
+        return $data;
+    }
+}

lib/Search/Sites/searchBase.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace OCA\NCDownloader\Search\Sites;
+
+interface searchBase
+{
+    public function search($keyword);
+    public function parse();
+
+}