<?php
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								use Symfony\Component\HttpFoundation\Request;
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								use Symfony\Component\HttpFoundation\Response;
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								class Controller {
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								  public $http;
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								  public function __construct() {
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								    $this->http = new Telegraph\HTTP();
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								  }
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								  private function _is_logged_in(Request $request, Response $response) {
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								    session_start();
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								    if(!session('user_id')) {
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								      session_destroy();
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								      $response->setStatusCode(302);
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								      $response->headers->set('Location', '/login?return_to='.$request->getRequestURI());
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								      return false;
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								    } else {
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								      return true;
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								    }
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								  }
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								  private function _get_role(Request $request) {
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								    // Default to load their first site, but let the query string override it
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								    $role = ORM::for_table('roles')->join('sites', 'roles.site_id = sites.id')
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								      ->where('user_id', session('user_id'))->order_by_asc('sites.created_at')->find_one();
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								    if($request->get('account')) {
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								      $role = ORM::for_table('roles')->where('user_id', session('user_id'))->where('site_id', $request->get('account'))->find_one();
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								      // Check that the user has permission to access this account
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								      if(!$role) {
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								        $response->setStatusCode(302);
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								        $response->headers->set('Location', '/dashboard');
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								        return false;
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								      }
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								    }
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								    return $role;
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								  }
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								  public function index(Request $request, Response $response) {
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								    $response->setContent(view('index', [
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								      'title' => 'Telegraph'
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								    ]));
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								    return $response;
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								  }
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								  public function dashboard(Request $request, Response $response) {
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								    if(!$this->_is_logged_in($request, $response)) {
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								      return $response;
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								    }
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								    if(!$role=$this->_get_role($request, $response)) {
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								      return $response;
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								    }
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								    $site = ORM::for_table('sites')->where_id_is($role->site_id)->find_one();
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								    $query = ORM::for_table('webmentions')->where('site_id', $site->id)
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								      ->order_by_desc('created_at')
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								      ->limit(20)
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								      ->find_many();
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								    $webmentions = [];
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								    foreach($query as $m) {
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								      $statuses = ORM::for_table('webmention_status')->where('webmention_id', $m->id)->order_by_desc('created_at')->find_many();
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								      if(count($statuses) == 0) {
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								        $icon = 'wait';
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								        $status = 'pending';
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								      } else {
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								        $status = $statuses[0]->status;
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								        switch($status) {
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								          case 'success':
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								          case 'accepted':
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								            $icon = 'checkmark';
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								            break;
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								          case 'not_supported':
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								          case 'error':
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								            $icon = 'warning';
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								            break;
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								          default:
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								            $icon = '';
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								        }
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								      }
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								      $webmentions[] = [
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								        'webmention' => $m,
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								        'statuses' => $statuses,
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								        'status' => $status,
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								        'icon' => $icon
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								      ];
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								    }
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								    $response->setContent(view('dashboard', [
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								      'title' => 'Telegraph Dashboard',
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								      'user' => $this->_user(),
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								      'accounts' => $this->_accounts(),
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								      'site' => $site,
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								      'webmentions' => $webmentions
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								    ]));
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								    return $response;
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								  }
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								  public function webmention_details(Request $request, Response $response, $args) {
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								    if(!$this->_is_logged_in($request, $response)) {
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								      return $response;
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								    }
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								    // Look up the webmention by its token
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								    $webmention = ORM::for_table('webmentions')->where('token', $args['code'])->find_one();
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								    if(!$webmention) {
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								      $response->setContent(view('not-found'));
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								      return $response;
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								    }
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								    $site = ORM::for_table('sites')->where_id_is($webmention->site_id)->find_one();
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								    $statuses = ORM::for_table('webmention_status')->where('webmention_id', $webmention->id)->order_by_desc('created_at')->find_many();
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								    $response->setContent(view('webmention-details', [
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								      'title' => 'Webmention Details',
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								      'user' => $this->_user(),
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								      'accounts' => $this->_accounts(),
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								      'site' => $site,
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								      'webmention' => $webmention,
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								      'statuses' => $statuses
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								    ]));
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								    return $response;
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								  }
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								  public function dashboard_send(Request $request, Response $response) {
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								    if(!$this->_is_logged_in($request, $response)) {
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								      return $response;
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								    }
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								    if(!$role=$this->_get_role($request, $response)) {
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								      return $response;
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								    }
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								    $site = ORM::for_table('sites')->where_id_is($role->site_id)->find_one();
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								    $response->setContent(view('webmention-send', [
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								      'title' => 'Webmention Details',
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								      'user' => $this->_user(),
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								      'accounts' => $this->_accounts(),
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								      'site' => $site,
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								      'role' => $role,
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								      'url' => $request->get('url')
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								    ]));
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								    return $response;
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								  }
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								  public function get_outgoing_links(Request $request, Response $response) {
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								    if(!$this->_is_logged_in($request, $response)) {
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								      return $response;
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								    }
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								    $sourceURL = $request->get('url');
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								    $client = new IndieWeb\MentionClient();
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								    $source = $this->http->get($sourceURL);
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								    $parsed = \Mf2\parse($source['body'], $sourceURL);
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								    $links = $client->findOutgoingLinks($parsed);
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								    $response->headers->set('Content-Type', 'application/json');
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								    $response->setContent(json_encode([
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								      'links' => array_values($links)
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								    ]));
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								    return $response;
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								  }
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								  private function _user() {
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								    return ORM::for_table('users')->where_id_is(session('user_id'))->find_one();
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								  }
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								  private function _accounts() {
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								    return ORM::for_table('sites')->join('roles', 'roles.site_id = sites.id')
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								      ->where('roles.user_id', session('user_id'))
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								      ->find_many();
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								  }
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								}
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