improved user experience for novice user(including support for standalone aria2c and ytdl binaries);support for snap installation;close #19

lib/Tools/Aria2.php

@@ -38,10 +38,10 @@ class Aria2
         );
         //turn keys in $options into variables
         extract($options);
-        if (isset($binary) && @is_executable($binary)) {
+        if (isset($binary) && $this->isExecutable($binary)) {
             $this->bin = $binary;
         } else {
-            $this->bin = Helper::findBinaryPath('aria2c');
+            $this->bin = Helper::findBinaryPath('aria2c', __DIR__ . "/../../bin/aria2c");
         }
         $this->setDownloadDir($dir);
         $this->setTorrentsDir($torrents_dir);
@@ -379,17 +379,27 @@ class Aria2
     }
     public function isInstalled()
     {
-        return (bool) (isset($this->bin) && @is_executable($this->bin));
+        return @is_file($this->bin);
     }
+    public function isExecutable()
+    {
+        return @is_executable($this->bin);
+    }
+
     public function isRunning()
     {
         $resp = $this->getSessionInfo();
         return (bool) $resp;
     }
+
+    public function getBin()
+    {
+        return $this->bin;
+    }
     public function stop()
     {
         $resp = $this->shutdown();
-        sleep(1);
+        sleep(3);
         return $resp ?? null;
     }
     private function confTemplate()

lib/Tools/Helper.php

@@ -202,6 +202,7 @@ class Helper
         if ($memcache->hasKey($program)) {
             return $memcache->get($program);
         }
+
         $dataPath = \OC::$server->getSystemConfig()->getValue('datadirectory');
         $paths = ['/usr/local/sbin', '/usr/local/bin', '/usr/sbin', '/usr/bin', '/sbin', '/bin', '/opt/bin', $dataPath . "/bin"];
         $result = $default;

lib/Tools/Youtube.php

@@ -18,6 +18,7 @@ class Youtube
     private $outTpl = "%(id)s-%(title).64s.%(ext)s";
     private $defaultDir = "/tmp/downloads";
     private $env = [];
+    private $bin;
 
     public function __construct(array $options)
     {
@@ -27,7 +28,7 @@ class Youtube
     public function init(array $options)
     {
         extract($options);
-        if (isset($binary) && @is_executable($binary)) {
+        if (isset($binary) && $this->isExecutable($binary)) {
             $this->bin = $binary;
         } else {
             $this->bin = Helper::findBinaryPath('youtube-dl', __DIR__ . "/../../bin/youtube-dl");
@@ -157,7 +158,7 @@ class Youtube
         $data = ['link' => $url];
         $process->run(function ($type, $buffer) use ($data, $process) {
             if (Process::ERR === $type) {
-               // $this->onError($buffer);
+                // $this->onError($buffer);
             } else {
                 $data['pid'] = $process->getPid();
                 $this->onOutput($buffer, $data);
@@ -235,7 +236,16 @@ class Youtube
     }
     public function isInstalled()
     {
-        return (bool) (isset($this->bin) && @is_executable($this->bin));
+        return @is_file($this->bin);
+    }
+    public function isExecutable()
+    {
+        return @is_executable($this->bin);
+    }
+
+    public function getBin()
+    {
+        return $this->bin;
     }
     public static function install()
     {