First commit

.gitignore

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+.idea
+
+config.ini
+vendor

App/Downloader.php

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+<?php namespace App;
+
+use App\Http\Resolver;
+use App\System\Controller;
+use App\Utils\Utils;
+use GuzzleHttp\Client;
+use League\Flysystem\Filesystem;
+use League\Flysystem\Util;
+use Ubench;
+
+class Downloader
+{
+    /**
+     * @var Resolver
+     */
+    private $client;
+
+    /**
+     * @var Controller
+     */
+    private $system;
+
+    /**
+     * @var Ubench
+     */
+    private $bench;
+
+    /**
+     * @var int
+     */
+    public static $currentLessonNumber;
+
+    /**
+     * @param Client $client
+     * @param Filesystem $system
+     * @param Ubench $bench
+     */
+    function __construct(Client $client, Filesystem $system, Ubench $bench)
+    {
+        $this->client = new Resolver($client, $bench);
+        $this->system = new Controller($system);
+        $this->bench = $bench;
+    }
+
+    public function start($options)
+    {
+        Utils::box('Starting Collecting the data');
+
+        $this->bench->start();
+        $localLessons = $this->system->getAllLessons();
+        $allLessonsOnline = $this->client->getAllLessons();
+        $this->bench->end();
+
+        //Magic to get what to download
+        $diff = Utils::resolveFaultyLessons($allLessonsOnline, $localLessons);
+
+        $new_lessons = Utils::countLessons($diff);
+        $new_episodes = Utils::countEpisodes($diff);
+
+        Utils::write(sprintf("%d new lessons and %d episodes. %s elapsed with %s of memory usage.",
+                $new_lessons,
+                $new_episodes,
+                $this->bench->getTime(),
+                $this->bench->getMemoryUsage())
+        );
+
+        Utils::box('Authenticating');
+        $this->doAuth($options);
+
+        if($new_lessons > 0) {
+            Utils::box('Downloading Lessons');
+            foreach ($diff['lessons'] as $lesson) {
+                $this->client->downloadLesson($lesson);
+            }
+        }
+
+        if($new_episodes > 0) {
+            Utils::box('Downloading Series');
+            foreach ($diff['series'] as $serie => $episodes) {
+                $this->system->createSerieFolderIfNotExists($serie);
+                foreach ($episodes as $episode) {
+                    $this->client->downloadSerieEpisode($serie, $episode);
+                }
+            }
+        }
+
+        Utils::writeln(sprintf("Finished! %d new lessons and %d new episodes.",
+            $new_lessons,
+            $new_episodes
+        ));
+    }
+
+    /**
+     * Tries to login
+     *
+     * @param $options
+     */
+    public function doAuth($options)
+    {
+        if (!$this->client->doAuth($options['email'], $options['password'])) {
+            Utils::write("Your login details are wrong!");
+            die();
+        }
+        Utils::write("Successfull!");
+    }
+
+
+}

App/Html/Parser.php

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+<?php namespace App\Html;
+
+use Symfony\Component\DomCrawler\Crawler;
+
+class Parser
+{
+
+    /**
+     * Parses the html and adds the lessons the the array
+     *
+     * @param $html
+     * @param $array
+     */
+    public static function getAllLessons($html, &$array)
+    {
+        $parser = new Crawler($html);
+
+        $parser->filter('a.js-lesson-title')->each(function (Crawler $node, $i) use (&$array) {
+            $link = $node->attr('href');
+
+            if (preg_match('/' . LARACASTS_LESSONS_PATH . '\/(.+)/', $link, $matches)) { // lesson
+                $array['lessons'][] = $matches[1];
+            }
+
+            if (preg_match('/' . LARACASTS_SERIES_PATH . '\/(.+)\/episodes\/(\d+)/', $link, $matches)) { // lesson
+                $array['series'][$matches[1]][] = (int)$matches[2];
+            }
+        });
+    }
+
+    /**
+     * Determines if there is next page, false if not or the link
+     *
+     * @param $html
+     *
+     * @return bool|string
+     */
+    public static function hasNextPage($html)
+    {
+        $parser = new Crawler($html);
+
+        $node = $parser->filter('[rel=next]');
+        if ($node->count() > 0)
+            return $node->attr('href');
+
+        return FALSE;
+    }
+
+    /**
+     * Gets the token input
+     *
+     * @param $html
+     *
+     * @return string
+     */
+    public static function getToken($html)
+    {
+        $parser = new Crawler($html);
+
+        return $parser->filter("input[name=_token]")->attr('value');
+    }
+
+    /**
+     * Gets the download link
+     *
+     * @param $html
+     */
+    public static function getDownloadLink($html)
+    {
+        preg_match('/(\/downloads\/\d+\?type=\w+)/', $html, $matches);
+
+        return $matches[0];
+    }
+
+    /**
+     * Extracts the name of the episode
+     *
+     * @param $html
+     *
+     * @return string
+     */
+    public static function getNameOfEpisode($html)
+    {
+        $parser = new Crawler($html);
+
+        return trim($parser->filter('.lesson-title')->text());
+    }
+}