simplified the process of adding more search sites

lib/Controller/MainController.php

@@ -72,6 +72,12 @@ class MainController extends Controller
         $params['counter'] = $this->counters->getCounters();
         $params['python_installed'] = Helper::pythonInstalled();
         $params['ffmpeg_installed'] = Helper::ffmpegInstalled();
+        $sites = [];
+        foreach (Helper::getSearchSites() as $site) {
+            $label = $site['class']::getLabel();
+            $sites[] = ['name' => $site['name'], 'label' => strtoupper($label)];
+        }
+        $params['search_sites'] = json_encode($sites);
 
         $errors = [];
         if ($aria2_installed) {

lib/Search/Sites/TPB.php

@@ -69,4 +69,8 @@ class TPB extends searchBase implements searchInterface
         $this->rows = $this->parse();
         return $this;
     }
+    public static function getLabel(): string
+    {
+        return 'thepiratebay';
+    }
 }

lib/Search/Sites/bitSearch.php

@@ -80,4 +80,8 @@ class bitSearch extends searchBase implements searchInterface
         $this->rows = $this->parse();
         return $this;
     }
+    public static function getLabel(): string
+    {
+        return 'bitsearch';
+    }
 }

lib/Search/Sites/searchBase.php

@@ -9,6 +9,7 @@ abstract class searchBase
     protected $rows = [];
     protected $errors = [];
     protected $actionLinks = [["name" => 'download', 'path' => '/index.php/apps/ncdownloader/new'], ['name' => 'clipboard']];
+    private static $instance = null;
 
     public function getTableTitles(): array
     {
@@ -18,6 +19,16 @@ abstract class searchBase
         return $this->tableTitles;
     }
 
+    public static function create($crawler,$client)
+    {
+
+        if (!self::$instance) {
+            self::$instance = new static($crawler,$client);
+        }
+
+        return self::$instance;
+    }
+
     public function setTableTitles(array $titles)
     {
         $this->tableTitles = $titles;

lib/Search/Sites/sliderkz.php

@@ -10,10 +10,12 @@ class sliderkz extends searchBase implements searchInterface
     public $baseUrl = "https://slider.kz/vk_auth.php";
     protected $query = null;
     protected $tableTitles = [];
-    public function __construct($client)
+
+    public function __construct($crawler,$client)
     {
         $this->client = $client;
     }
+    
     public function search(string $keyword): array
     {
         $this->query = ['q' => trim($keyword)];
@@ -69,4 +71,9 @@ class sliderkz extends searchBase implements searchInterface
 
         return [];
     }
+
+    public static function getLabel(): string
+    {
+        return 'music';
+    }
 }

lib/Tools/File.php

@@ -0,0 +1,59 @@
+<?php
+
+namespace OCA\NCDownloader\Tools;
+
+class File
+{
+
+    private $dirName;
+
+    //$dir_name = iconv("utf-8", "gb2312", $dir_name);
+
+    public function __construct($dirname, $suffix = "php")
+    {
+
+        $this->dirName = $dirname;
+        $this->suffix = $suffix;
+
+        if (!is_dir($dirname)) {
+            throw new \Exception("directory ${dirname} doesn't exit");
+        }
+
+    }
+
+    public static function create($dir, $suffix)
+    {
+        return new static($dir, $suffix);
+    }
+
+    public function scandir($recursive = false)
+    {
+        if ($recursive) {
+            return $this->scandirRecursive();
+        }
+
+        $files = \glob($this->dirName . DIRECTORY_SEPARATOR . "*.{$this->suffix}");
+        $this->Files = $files;
+        return $files;
+    }
+
+    protected function scandirRecursive()
+    {
+
+        $directory = new \RecursiveDirectoryIterator($this->dirName);
+        $iterator = new \RecursiveIteratorIterator($directory);
+        $iterators = new \RegexIterator($iterator, '/.*\.' . $this->suffix . '$/', \RegexIterator::GET_MATCH);
+
+        $files = array();
+        foreach ($iterators as $info) {
+            if ($info) {
+                $files[] = reset($info);
+            }
+        }
+        $this->Files = $files;
+        return $files;
+    }
+    public function getBasename($file){
+        return basename($file,".".$this->suffix);
+    }
+}

lib/Tools/Helper.php

@@ -2,6 +2,7 @@
 
 namespace OCA\NCDownloader\Tools;
 
+use OCA\NCDownloader\Search\Sites\searchInterface;
 use OCA\NCDownloader\Tools\aria2Options;
 use OC\Files\Filesystem;
 
@@ -331,4 +332,37 @@ class Helper
         return (bool) self::findBinaryPath('python');
     }
 
+    public static function findSearchSites($dir, $suffix = 'php'): array
+    {
+        $filetool = File::create($dir, $suffix);
+        $files = $filetool->scandir();
+        $sites = [];
+        foreach ($files as $file) {
+            $basename = $filetool->getBasename($file);
+            $namespace = 'OCA\\NCDownloader\\Search\\Sites\\';
+            $className = $namespace . $basename;
+            if (in_array(searchInterface::class, class_implements($className))) {
+                $sites[] = ['class' => $className, 'name' => $basename];
+            }
+        }
+        return $sites;
+    }
+
+    public static function getSearchSites(): array
+    {
+        $key = 'searchSites';
+        $memcache = \OC::$server->getMemCacheFactory()->createDistributed($key);
+        if ($memcache->hasKey($key)) {
+            $sites = $memcache->get($key);
+        } else {
+            try {
+                $sites = Helper::findSearchSites(__DIR__ . "/../Search/Sites/");
+                $memcache->set($key, $sites, 300);
+            } catch (\Exception $e) {
+                self::debug($e->getMessage());
+            }
+        }
+        return $sites;
+    }
+
 }