From bf6c0346d8d35a719dd1bff1cb4d573d422f99ff Mon Sep 17 00:00:00 2001
From: Thomas Citharel <tcit@tcit.fr>
Date: Wed, 31 May 2017 09:31:18 +0200
Subject: WIP

Signed-off-by: Thomas Citharel <tcit@tcit.fr>
---
 .../Command/CreateAccountsCommand.php              | 126 ++++++
 .../Controller/InboxController.php                 |  43 +++
 .../Controller/LikedController.php                 |  19 +
 .../Controller/MetadataController.php              |  69 ++++
 .../Controller/OutboxController.php                |  23 ++
 .../Controller/ProfileController.php               | 425 +++++++++++++++++++++
 .../Controller/RecommandController.php             |  34 ++
 .../DependencyInjection/Configuration.php          |  25 ++
 .../WallabagFederationExtension.php                |  26 ++
 src/Wallabag/FederationBundle/Entity/Account.php   | 307 +++++++++++++++
 src/Wallabag/FederationBundle/Entity/Instance.php  | 111 ++++++
 .../EventListener/CreateAccountListener.php        |  54 +++
 .../FederationBundle/Federation/CloudId.php        |  78 ++++
 .../FederationBundle/Form/Type/AccountType.php     |  46 +++
 .../Repository/AccountRepository.php               |  48 +++
 .../Repository/InstanceRepository.php              |  10 +
 .../FederationBundle/Resources/config/services.yml |   8 +
 .../views/themes/material/User/followers.html.twig |  88 +++++
 .../views/themes/material/User/profile.html.twig   |  77 ++++
 .../themes/material/User/profile_header.html.twig  |  35 ++
 .../themes/material/User/recommendations.html.twig |   4 +
 .../FederationBundle/WallabagFederationBundle.php  |   9 +
 22 files changed, 1665 insertions(+)
 create mode 100644 src/Wallabag/FederationBundle/Command/CreateAccountsCommand.php
 create mode 100644 src/Wallabag/FederationBundle/Controller/InboxController.php
 create mode 100644 src/Wallabag/FederationBundle/Controller/LikedController.php
 create mode 100644 src/Wallabag/FederationBundle/Controller/MetadataController.php
 create mode 100644 src/Wallabag/FederationBundle/Controller/OutboxController.php
 create mode 100644 src/Wallabag/FederationBundle/Controller/ProfileController.php
 create mode 100644 src/Wallabag/FederationBundle/Controller/RecommandController.php
 create mode 100644 src/Wallabag/FederationBundle/DependencyInjection/Configuration.php
 create mode 100644 src/Wallabag/FederationBundle/DependencyInjection/WallabagFederationExtension.php
 create mode 100644 src/Wallabag/FederationBundle/Entity/Account.php
 create mode 100644 src/Wallabag/FederationBundle/Entity/Instance.php
 create mode 100644 src/Wallabag/FederationBundle/EventListener/CreateAccountListener.php
 create mode 100644 src/Wallabag/FederationBundle/Federation/CloudId.php
 create mode 100644 src/Wallabag/FederationBundle/Form/Type/AccountType.php
 create mode 100644 src/Wallabag/FederationBundle/Repository/AccountRepository.php
 create mode 100644 src/Wallabag/FederationBundle/Repository/InstanceRepository.php
 create mode 100644 src/Wallabag/FederationBundle/Resources/config/services.yml
 create mode 100644 src/Wallabag/FederationBundle/Resources/views/themes/material/User/followers.html.twig
 create mode 100644 src/Wallabag/FederationBundle/Resources/views/themes/material/User/profile.html.twig
 create mode 100644 src/Wallabag/FederationBundle/Resources/views/themes/material/User/profile_header.html.twig
 create mode 100644 src/Wallabag/FederationBundle/Resources/views/themes/material/User/recommendations.html.twig
 create mode 100644 src/Wallabag/FederationBundle/WallabagFederationBundle.php

(limited to 'src/Wallabag/FederationBundle')

diff --git a/src/Wallabag/FederationBundle/Command/CreateAccountsCommand.php b/src/Wallabag/FederationBundle/Command/CreateAccountsCommand.php
new file mode 100644
index 00000000..f2ca3b06
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Command/CreateAccountsCommand.php
@@ -0,0 +1,126 @@
+<?php
+
+namespace Wallabag\FederationBundle\Command;
+
+use Doctrine\ORM\NoResultException;
+use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Wallabag\FederationBundle\Entity\Account;
+use Wallabag\FederationBundle\Entity\Instance;
+use Wallabag\UserBundle\Entity\User;
+
+class CreateAccountsCommand extends ContainerAwareCommand
+{
+    /** @var OutputInterface */
+    protected $output;
+
+    protected $created = 0;
+
+    protected function configure()
+    {
+        $this
+            ->setName('wallabag:federation:create-accounts')
+            ->setDescription('Creates missing federation accounts')
+            ->setHelp('This command creates accounts for federation for missing users')
+            ->addArgument(
+                'username',
+                InputArgument::OPTIONAL,
+                'User to create an account for'
+            );
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $this->output = $output;
+
+        $domainName = $this->getContainer()->getParameter('domain_name');
+        $instance = $this->checkInstance($domainName);
+
+        $username = $input->getArgument('username');
+
+        if ($username) {
+            try {
+                $user = $this->getUser($username);
+                $this->createAccount($user, $instance);
+            } catch (NoResultException $e) {
+                $output->writeln(sprintf('<error>User "%s" not found.</error>', $username));
+
+                return 1;
+            }
+        } else {
+            $users = $this->getDoctrine()->getRepository('WallabagUserBundle:User')->findAll();
+
+            $output->writeln(sprintf('Creating through %d user federated accounts', count($users)));
+
+            foreach ($users as $user) {
+                $output->writeln(sprintf('Processing user %s', $user->getUsername()));
+                $this->createAccount($user, $instance);
+            }
+            $output->writeln(sprintf('Creating user federated accounts. %d accounts created in total', $this->created));
+        }
+
+        return 0;
+    }
+
+    /**
+     * @param User $user
+     * @param $instance
+     */
+    private function createAccount(User $user, Instance $instance)
+    {
+        $em = $this->getContainer()->get('doctrine.orm.entity_manager');
+        $repo = $em->getRepository('WallabagFederationBundle:Account');
+
+        if ($repo->findBy(['user' => $user->getId()])) {
+            return;
+        }
+
+        $account = new Account();
+        $account->setUsername($user->getUsername())
+            ->setUser($user)
+            ->setServer($instance);
+
+        $em->persist($account);
+        $em->flush();
+
+        $user->setAccount($account);
+        $em->persist($account);
+        $em->flush();
+
+        ++$this->created;
+    }
+
+    private function checkInstance($domainName)
+    {
+        $em = $this->getContainer()->get('doctrine.orm.entity_manager');
+        $repo = $em->getRepository('WallabagFederationBundle:Instance');
+
+        $instance = $repo->findOneByDomain($domainName);
+        if (!$instance) {
+            $instance = new Instance($domainName);
+
+            $em->persist($instance);
+            $em->flush();
+        }
+        return $instance;
+    }
+
+    /**
+     * Fetches a user from its username.
+     *
+     * @param string $username
+     *
+     * @return \Wallabag\UserBundle\Entity\User
+     */
+    private function getUser($username)
+    {
+        return $this->getDoctrine()->getRepository('WallabagUserBundle:User')->findOneByUserName($username);
+    }
+
+    private function getDoctrine()
+    {
+        return $this->getContainer()->get('doctrine');
+    }
+}
diff --git a/src/Wallabag/FederationBundle/Controller/InboxController.php b/src/Wallabag/FederationBundle/Controller/InboxController.php
new file mode 100644
index 00000000..99cfeadf
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Controller/InboxController.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Wallabag\FederationBundle\Controller;
+
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter;
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Wallabag\FederationBundle\Entity\Account;
+use Wallabag\FederationBundle\Entity\Instance;
+use Wallabag\FederationBundle\Federation\CloudId;
+
+class InboxController extends Controller
+{
+    /**
+     * @Route("/profile/inbox", name="user-inbox")
+     *
+     * @param Request $request
+     * @return Response
+     */
+    public function userInboxAction(Request $request)
+    {
+        $em = $this->getDoctrine()->getManager();
+        $response = new Response();
+
+        if ($activity = json_decode($request->getContent())) {
+            if ($activity->type === 'Follow' && isset($activity->actor->id)) {
+                $cloudId = new CloudId($activity->actor->id);
+                $account = new Account();
+                $account->setServer($cloudId->getRemote())
+                    ->setUsername($cloudId->getUser());
+                $em->persist($account);
+                $em->flush();
+
+                $response->setStatusCode(201);
+            } else {
+                $response->setStatusCode(400);
+            }
+        }
+        return $response;
+    }
+}
diff --git a/src/Wallabag/FederationBundle/Controller/LikedController.php b/src/Wallabag/FederationBundle/Controller/LikedController.php
new file mode 100644
index 00000000..3e86d50d
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Controller/LikedController.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Wallabag\FederationBundle\Controller;
+
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+use Wallabag\CoreBundle\Entity\Entry;
+
+class LikedController extends Controller
+{
+    /**
+     * @Route("/like/{entry}", name="like")
+     * @param Entry $entry
+     */
+    public function likeAction(Entry $entry)
+    {
+        
+    }
+}
diff --git a/src/Wallabag/FederationBundle/Controller/MetadataController.php b/src/Wallabag/FederationBundle/Controller/MetadataController.php
new file mode 100644
index 00000000..90d3eb4d
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Controller/MetadataController.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace Wallabag\FederationBundle\Controller;
+
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Wallabag\FederationBundle\Federation\CloudId;
+
+class MetadataController extends Controller
+{
+    /**
+     * @Route("/.well-known/host-meta", name="webfinger-host-meta")
+     *
+     * @return Response
+     */
+    public function getHostMeta()
+    {
+        $response = new Response();
+        $response->setContent('<XRD xmlns=\"http://docs.oasis-open.org/ns/xri/xrd-1.0\">
+<Link rel=\"lrdd\" type=\"application/xrd+xml\" template=\"' . $this->generateUrl('webfinger') . '?resource={uri}\"/>
+</XRD>');
+        $response->headers->set('Content-Type', 'application/xrd+xml');
+        return $response;
+    }
+
+    /**
+     * @Route("/.well-known/webfinger", name="webfinger")
+     * @param Request $request
+     * @return JsonResponse
+     */
+    public function getWebfingerData(Request $request)
+    {
+        $subject = $request->query->get('resource');
+
+        if (!$subject || strlen($subject) < 12 || 0 !== strpos($subject, 'acct:') || false !== strpos($subject, '@')) {
+            return new JsonResponse([]);
+        }
+        $subjectId = substr($subject, 5);
+
+        $cloudId = $this->getCloudId($subjectId);
+
+
+        $data = [
+            'subject' => $subject,
+            'aliases' => [$this->generateUrl('profile', $cloudId->getUser())],
+            'links' => [
+                [
+                    'rel' => 'http://webfinger.net/rel/profile-page',
+                    'type' => 'text/html',
+                    'href' => $this->generateUrl('profile', $cloudId->getUser())
+                ],
+            ]
+        ];
+        return new JsonResponse($data);
+    }
+
+    private function getCloudId($subjectId)
+    {
+        return new CloudId($subjectId);
+    }
+
+
+    #
+    # {"subject":"acct:tcit@social.tcit.fr","aliases":["https://social.tcit.fr/@tcit","https://social.tcit.fr/users/tcit"],"links":[{"rel":"http://webfinger.net/rel/profile-page","type":"text/html","href":"https://social.tcit.fr/@tcit"},{"rel":"http://schemas.google.com/g/2010#updates-from","type":"application/atom+xml","href":"https://social.tcit.fr/users/tcit.atom"},{"rel":"self","type":"application/activity+json","href":"https://social.tcit.fr/@tcit"},{"rel":"salmon","href":"https://social.tcit.fr/api/salmon/1"},{"rel":"magic-public-key","href":"data:application/magic-public-key,RSA.pXwYMUdFg3XUd-bGsh8CyiMRGpRGAWuCdM5pDWx5uM4pW2pM3xbHbcI21j9h8BmlAiPg6hbZD73KGly2N8Rt5iIS0I-l6i8kA1JCCdlAaDTRd41RKMggZDoQvjVZQtsyE1VzMeU2kbqqTFN6ew7Hvbd6O0NhixoKoZ5f3jwuBDZoT0p1TAcaMdmG8oqHD97isizkDnRn8cOBA6wtI-xb5xP2zxZMsLpTDZLiKU8XcPKZCw4OfQfmDmKkHtrFb77jCAQj_s_FxjVnvxRwmfhNnWy0D-LUV_g63nHh_b5zXIeV92QZLvDYbgbezmzUzv9UeA1s70GGbaDqCIy85gw9-w==.AQAB"},{"rel":"http://ostatus.org/schema/1.0/subscribe","template":"https://social.tcit.fr/authorize_follow?acct={uri}"}]}
+    #
+}
diff --git a/src/Wallabag/FederationBundle/Controller/OutboxController.php b/src/Wallabag/FederationBundle/Controller/OutboxController.php
new file mode 100644
index 00000000..87ebdba1
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Controller/OutboxController.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Wallabag\FederationBundle\Controller;
+
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+use Symfony\Component\HttpFoundation\Request;
+use Wallabag\FederationBundle\Entity\Account;
+use Wallabag\UserBundle\Entity\User;
+
+class OutboxController extends Controller
+{
+    /**
+     * @Route("/profile/outbox", name="user-outbox")
+     *
+     * @param Request $request
+     * @param Account $user
+     */
+    public function userOutboxAction(Request $request, Account $user)
+    {
+
+    }
+}
diff --git a/src/Wallabag/FederationBundle/Controller/ProfileController.php b/src/Wallabag/FederationBundle/Controller/ProfileController.php
new file mode 100644
index 00000000..7e472e11
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Controller/ProfileController.php
@@ -0,0 +1,425 @@
+<?php
+
+namespace Wallabag\FederationBundle\Controller;
+
+use Pagerfanta\Adapter\DoctrineORMAdapter;
+use Pagerfanta\Pagerfanta;
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter;
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
+use Wallabag\CoreBundle\Entity\Entry;
+use Wallabag\FederationBundle\Entity\Account;
+use Wallabag\FederationBundle\Federation\CloudId;
+
+class ProfileController extends Controller
+{
+    /**
+     * @Route("/profile/@{user}", name="user-profile")
+     * @ParamConverter("user", class="WallabagFederationBundle:Account", options={
+     *     "repository_method" = "findOneByUsername"})
+     *
+     * @param Request $request
+     * @param Account $user
+     * @return JsonResponse|Response
+     */
+    public function getUserProfile(Request $request, Account $user)
+    {
+        if (in_array('application/ld+json; profile="https://www.w3.org/ns/activitystreams', $request->getAcceptableContentTypes(), true)) {
+            $data = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Person',
+                'id' => CloudId::getCloudIdFromAccount($user, $this->generateUrl('homepage', [], UrlGeneratorInterface::ABSOLUTE_URL))->getDisplayId(),
+                'following' => $this->generateUrl('following', ['user' => $user->getUsername()], UrlGeneratorInterface::ABSOLUTE_URL),
+                'followers' => $this->generateUrl('followers', ['user' => $user->getUsername()], UrlGeneratorInterface::ABSOLUTE_URL),
+                //'liked' => $this->generateUrl('recommended', ['user' => $user], UrlGeneratorInterface::ABSOLUTE_URL),
+                'inbox' => $this->generateUrl('user-inbox', ['user' => $user], UrlGeneratorInterface::ABSOLUTE_URL),
+                'outbox' => $this->generateUrl('user-outbox', ['user' => $user->getUsername()], UrlGeneratorInterface::ABSOLUTE_URL),
+                'preferredUsername' => $user->getUser()->getName(),
+                'name' => $user->getUsername(),
+                //'oauthAuthorizationEndpoint' => $this->generateUrl('fos_oauth_server_authorize', [], UrlGeneratorInterface::ABSOLUTE_URL),
+                'oauthTokenEndpoint' => $this->generateUrl('fos_oauth_server_token', [], UrlGeneratorInterface::ABSOLUTE_URL),
+                //'publicInbox' => $this->generateUrl('public_inbox', [], UrlGeneratorInterface::ABSOLUTE_URL),
+            ];
+            return new JsonResponse($data);
+        }
+        return $this->render(
+            'WallabagFederationBundle:User:profile.html.twig', [
+                'user' => $user,
+                'registration_enabled' => $this->getParameter('wallabag_user.registration_enabled'),
+            ]
+        );
+    }
+
+    /**
+     * @Route("/profile/@{user}/followings/{page}", name="following", defaults={"page" : 0})
+     * @ParamConverter("user", class="WallabagFederationBundle:Account", options={
+     *     "repository_method" = "findOneByUsername"})
+     *
+     * @param Request $request
+     * @param Account $user
+     * @param int $page
+     * @return JsonResponse|Response
+     */
+    public function getUsersFollowing(Request $request, Account $user, $page = 0)
+    {
+        $qb = $this->getDoctrine()->getRepository('WallabagFederationBundle:Account')->getBuilderForFollowingsByAccount($user->getId());
+
+        $pagerAdapter = new DoctrineORMAdapter($qb->getQuery(), true, false);
+
+        $following = new Pagerfanta($pagerAdapter);
+        $totalFollowing = $following->getNbResults();
+
+        $activityStream = in_array('application/ld+json; profile="https://www.w3.org/ns/activitystreams', $request->getAcceptableContentTypes(), true);
+
+        if ($page === 0 && $activityStream) {
+            /** Home page */
+            $dataPrez = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'summary' => $user->getUsername() . " followings'",
+                'type' => 'Collection',
+                'id' => $this->generateUrl('following', ['user' => $user->getUsername()], UrlGeneratorInterface::ABSOLUTE_URL),
+                'totalItems' => $totalFollowing,
+                'first' => [
+                    '@context' => 'https://www.w3.org/ns/activitystreams',
+                    'type' => 'Link',
+                    'href' => $this->generateUrl('following', ['user' => $user->getUsername(), 'page' => 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                    'name' => 'First page of ' . $user->getUsername() . ' followings'
+                ],
+                'last' => [
+                    '@context' => 'https://www.w3.org/ns/activitystreams',
+                    'type' => 'Link',
+                    'href' => $this->generateUrl('following', ['user' => $user->getUsername(), 'page' => $following->getNbPages()], UrlGeneratorInterface::ABSOLUTE_URL),
+                    'name' => 'Last page of ' . $user->getUsername() . ' followings'
+                ]
+            ];
+            return new JsonResponse($dataPrez);
+            //}
+        }
+
+        $following->setMaxPerPage(30);
+        $following->setCurrentPage($page);
+
+        if (!$activityStream) {
+            return $this->render('WallabagFederationBundle:User:followers.html.twig', [
+                'users' => $following,
+                'user' => $user,
+                'registration_enabled' => $this->getParameter('wallabag_user.registration_enabled'),
+            ]);
+        }
+
+        $items = [];
+
+        foreach ($following->getCurrentPageResults() as $follow) {
+            /** @var Account $follow */
+            /** Items in the page */
+            $items[] = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Person',
+                'name' => $follow->getUsername(),
+                'id' => CloudId::getCloudIdFromAccount($follow),
+            ];
+        }
+
+        $data = [
+            'summary' => 'Page ' . $page . ' of ' . $user->getUsername() . ' followers',
+            'partOf' => $this->generateUrl('following', ['user' => $user->getUsername()], UrlGeneratorInterface::ABSOLUTE_URL),
+            'type' => 'OrderedCollectionPage',
+            'startIndex' => ($page - 1) * 30,
+            'orderedItems' => $items,
+            'first' => [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('following', ['user' => $user->getUsername(), 'page' => 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'First page of ' . $user->getUsername() . ' followings'
+            ],
+            'last' => [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('following', ['user' => $user->getUsername(), 'page' => $following->getNbPages()], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'Last page of ' . $user->getUsername() . ' followings'
+            ],
+        ];
+
+        /** Previous page */
+        if ($page > 1) {
+            $data['prev'] = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('following', ['user' => $user->getUsername(), 'page' => $page - 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'Previous page of ' . $user->getUsername() . ' followings'
+            ];
+        }
+
+        /** Next page */
+        if ($page < $following->getNbPages()) {
+            $data['next'] = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('following', ['user' => $user->getUsername(), 'page' => $page + 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'Next page of ' . $user->getUsername() . ' followings'
+            ];
+        }
+
+        return new JsonResponse($data);
+    }
+
+    /**
+     * @Route("/profile/@{user}/followers/{page}", name="followers", defaults={"page" : 0})
+     * @ParamConverter("user", class="WallabagFederationBundle:Account", options={
+     *     "repository_method" = "findOneByUsername"})
+     *
+     * @param Request $request
+     * @param Account $user
+     * @return JsonResponse
+     */
+    public function getUsersFollowers(Request $request, Account $user, $page)
+    {
+        $qb = $this->getDoctrine()->getRepository('WallabagFederationBundle:Account')->getBuilderForFollowersByAccount($user->getId());
+
+        $pagerAdapter = new DoctrineORMAdapter($qb->getQuery(), true, false);
+
+        $followers = new Pagerfanta($pagerAdapter);
+        $totalFollowers = $followers->getNbResults();
+
+        $activityStream = in_array('application/ld+json; profile="https://www.w3.org/ns/activitystreams', $request->getAcceptableContentTypes(), true);
+
+        if ($page === 0  && $activityStream) {
+            /** Home page */
+            $dataPrez = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'summary' => $user->getUsername() . " followers'",
+                'type' => 'Collection',
+                'id' => $this->generateUrl('followers', ['user' => $user->getUsername()], UrlGeneratorInterface::ABSOLUTE_URL),
+                'totalItems' => $totalFollowers,
+                'first' => [
+                    '@context' => 'https://www.w3.org/ns/activitystreams',
+                    'type' => 'Link',
+                    'href' => $this->generateUrl('followers', ['user' => $user->getUsername(), 'page' => 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                    'name' => 'First page of ' . $user->getUsername() . ' followers'
+                ],
+                'last' => [
+                    '@context' => 'https://www.w3.org/ns/activitystreams',
+                    'type' => 'Link',
+                    'href' => $this->generateUrl('followers', ['user' => $user->getUsername(), 'page' => $followers->getNbPages()], UrlGeneratorInterface::ABSOLUTE_URL),
+                    'name' => 'Last page of ' . $user->getUsername() . ' followers'
+                ]
+            ];
+            return new JsonResponse($dataPrez);
+        }
+
+        $followers->setMaxPerPage(30);
+        if (!$activityStream && $page === 0) {
+            $followers->setCurrentPage(1);
+        } else {
+            $followers->setCurrentPage($page);
+        }
+
+        if (!$activityStream) {
+            return $this->render('WallabagFederationBundle:User:followers.html.twig', [
+                'users' => $followers,
+                'user' => $user,
+                'registration_enabled' => $this->getParameter('wallabag_user.registration_enabled'),
+            ]);
+        }
+
+        $items = [];
+
+        foreach ($followers->getCurrentPageResults() as $follow) {
+            /** @var Account $follow */
+            /** Items in the page */
+            $items[] = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Person',
+                'name' => $follow->getUsername(),
+                'id' => CloudId::getCloudIdFromAccount($follow)->getDisplayId(),
+            ];
+        }
+        $data = [
+            'summary' => 'Page ' . $page . ' of ' . $user->getUsername() . ' followers',
+            'partOf' => $this->generateUrl('followers', ['user' => $user->getUsername()], UrlGeneratorInterface::ABSOLUTE_URL),
+            'type' => 'OrderedCollectionPage',
+            'startIndex' => ($page - 1) * 30,
+            'orderedItems' => $items,
+            'first' => [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('followers', ['user' => $user->getUsername(), 'page' => 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'First page of ' . $user->getUsername() . ' followers'
+            ],
+            'last' => [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('followers', ['user' => $user->getUsername(), 'page' => $followers->getNbPages()], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'Last page of ' . $user->getUsername() . ' followers'
+            ],
+        ];
+
+        /** Previous page */
+        if ($page > 1) {
+            $data['prev'] = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('followers', ['user' => $user->getUsername(), 'page' => $page - 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'Previous page of ' . $user->getUsername() . ' followers'
+            ];
+        }
+
+        /** Next page */
+        if ($page < $followers->getNbPages()) {
+            $data['next'] = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('followers', ['user' => $user->getUsername(), 'page' => $page + 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'Next page of ' . $user->getUsername() . ' followers'
+            ];
+        }
+
+        return new JsonResponse($data);
+    }
+
+    /**
+     * @Route("/profile/@{userToFollow}/follow", name="follow-user")
+     * @ParamConverter("userToFollow", class="WallabagFederationBundle:Account", options={
+     *     "repository_method" = "findOneByUsername"})
+     * @param Account $userToFollow
+     */
+    public function followAccountAction(Account $userToFollow)
+    {
+        // if we're on our own instance
+        if ($this->get('security.authorization_checker')->isGranted('IS_AUTHENTICATED_FULLY')) {
+
+            /** @var Account $userAccount */
+            $userAccount = $this->getUser()->getAccount();
+
+            if ($userToFollow === $userAccount) {
+                $this->createAccessDeniedException("You can't follow yourself");
+            }
+
+            $em = $this->getDoctrine()->getManager();
+
+            $userAccount->addFollowing($userToFollow);
+            $userToFollow->addFollower($userAccount);
+
+            $em->persist($userAccount);
+            $em->persist($userToFollow);
+
+            $em->flush();
+        } else {
+            // ask cloud id and redirect to instance
+        }
+    }
+
+    /**
+     * @Route("/profile/@{user}/recommendations", name="user-recommendations", defaults={"page" : 0})
+     * @ParamConverter("user", class="WallabagFederationBundle:Account", options={
+     *     "repository_method" = "findOneByUsername"})
+     *
+     * @param Request $request
+     * @param Account $user
+     * @param int $page
+     * @return JsonResponse|Response
+     */
+    public function getUsersRecommendationsAction(Request $request, Account $user, $page = 0)
+    {
+        $qb = $this->getDoctrine()->getRepository('WallabagCoreBundle:Entry')->getBuilderForRecommendationsByUser($user->getUser()->getId());
+
+        $pagerAdapter = new DoctrineORMAdapter($qb->getQuery(), true, false);
+
+        $recommendations = new Pagerfanta($pagerAdapter);
+        $totalRecommendations = $recommendations->getNbResults();
+
+        $activityStream = in_array('application/ld+json; profile="https://www.w3.org/ns/activitystreams', $request->getAcceptableContentTypes(), true);
+
+        if ($page === 0  && $activityStream) {
+            $dataPrez = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'summary' => $user->getUsername() . " recommendations'",
+                'type' => 'Collection',
+                'id' => $this->generateUrl('user-recommendations', ['user' => $user->getUsername()], UrlGeneratorInterface::ABSOLUTE_URL),
+                'totalItems' => $totalRecommendations,
+                'first' => [
+                    '@context' => 'https://www.w3.org/ns/activitystreams',
+                    'type' => 'Link',
+                    'href' => $this->generateUrl('user-recommendations', ['user' => $user->getUsername(), 'page' => 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                    'name' => 'First page of ' . $user->getUsername() . ' followers'
+                ],
+                'last' => [
+                    '@context' => 'https://www.w3.org/ns/activitystreams',
+                    'type' => 'Link',
+                    'href' => $this->generateUrl('user-recommendations', ['user' => $user->getUsername(), 'page' => $recommendations->getNbPages()], UrlGeneratorInterface::ABSOLUTE_URL),
+                    'name' => 'Last page of ' . $user->getUsername() . ' followers'
+                ]
+            ];
+            return new JsonResponse($dataPrez);
+        }
+
+        $recommendations->setMaxPerPage(30);
+        if (!$activityStream && $page === 0) {
+            $recommendations->setCurrentPage(1);
+        } else {
+            $recommendations->setCurrentPage($page);
+        }
+
+        if (!$activityStream) {
+            return $this->render('WallabagFederationBundle:User:recommendations.html.twig', [
+                'recommendations' => $recommendations,
+                'registration_enabled' => $this->getParameter('wallabag_user.registration_enabled'),
+            ]);
+        }
+
+        $items = [];
+
+        foreach ($recommendations->getCurrentPageResults() as $recommendation) {
+            $items[] = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Person',
+                'name' => $recommendation->getTitle(),
+                'id' => $recommendation->getUrl(),
+            ];
+        }
+        $data = [
+            'summary' => 'Page ' . $page . ' of ' . $user->getUsername() . ' recommendations',
+            'partOf' => $this->generateUrl('user-recommendations', ['user' => $user->getUsername()], UrlGeneratorInterface::ABSOLUTE_URL),
+            'type' => 'OrderedCollectionPage',
+            'startIndex' => ($page - 1) * 30,
+            'orderedItems' => $items,
+            'first' => [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('user-recommendations', ['user' => $user->getUsername(), 'page' => 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'First page of ' . $user->getUsername() . ' recommendations'
+            ],
+            'last' => [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('user-recommendations', ['user' => $user->getUsername(), 'page' => $recommendations->getNbPages()], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'Last page of ' . $user->getUsername() . ' recommendations'
+            ],
+        ];
+
+        if ($page > 1) {
+            $data['prev'] = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('user-recommendations', ['user' => $user->getUsername(), 'page' => $page - 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'Previous page of ' . $user->getUsername() . ' recommendations'
+            ];
+        }
+
+        if ($page < $recommendations->getNbPages()) {
+            $data['next'] = [
+                '@context' => 'https://www.w3.org/ns/activitystreams',
+                'type' => 'Link',
+                'href' => $this->generateUrl('user-recommendations', ['user' => $user->getUsername(), 'page' => $page + 1], UrlGeneratorInterface::ABSOLUTE_URL),
+                'name' => 'Next page of ' . $user->getUsername() . ' recommendations'
+            ];
+        }
+
+        return new JsonResponse($data);
+    }
+
+}
diff --git a/src/Wallabag/FederationBundle/Controller/RecommandController.php b/src/Wallabag/FederationBundle/Controller/RecommandController.php
new file mode 100644
index 00000000..ea5a6660
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Controller/RecommandController.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Wallabag\FederationBundle\Controller;
+
+use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
+use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+use Wallabag\CoreBundle\Entity\Entry;
+use Wallabag\CoreBundle\Event\Activity\Actions\Federation\RecommendedEntryEvent;
+use Wallabag\FederationBundle\Entity\Account;
+
+class RecommandController extends Controller
+{
+    /**
+     * @Route("/recommend/{entry}", name="recommend-entry")
+     *
+     * @param Entry $entry
+     */
+    public function postRecommendAction(Entry $entry)
+    {
+        if ($entry->getUser() !== $this->getUser()) {
+            $this->createAccessDeniedException("You can't recommend entries which are not your own");
+        }
+        $em = $this->getDoctrine()->getManager();
+
+        $entry->setRecommended(true);
+
+        $em->persist($entry);
+        $em->flush();
+
+        $this->get('event_dispatcher')->dispatch(RecommendedEntryEvent::NAME, new RecommendedEntryEvent($entry));
+
+        $this->redirectToRoute('view', ['id' => $entry->getId()]);
+    }
+}
diff --git a/src/Wallabag/FederationBundle/DependencyInjection/Configuration.php b/src/Wallabag/FederationBundle/DependencyInjection/Configuration.php
new file mode 100644
index 00000000..7754e8e4
--- /dev/null
+++ b/src/Wallabag/FederationBundle/DependencyInjection/Configuration.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Wallabag\FederationBundle\DependencyInjection;
+
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+
+class Configuration implements ConfigurationInterface
+{
+    public function getConfigTreeBuilder()
+    {
+        $treeBuilder = new TreeBuilder();
+        $rootNode = $treeBuilder->root('wallabag_user');
+
+        $rootNode
+            ->children()
+                ->booleanNode('registration_enabled')
+                    ->defaultValue(true)
+                ->end()
+            ->end()
+        ;
+
+        return $treeBuilder;
+    }
+}
diff --git a/src/Wallabag/FederationBundle/DependencyInjection/WallabagFederationExtension.php b/src/Wallabag/FederationBundle/DependencyInjection/WallabagFederationExtension.php
new file mode 100644
index 00000000..ceeb8379
--- /dev/null
+++ b/src/Wallabag/FederationBundle/DependencyInjection/WallabagFederationExtension.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Wallabag\FederationBundle\DependencyInjection;
+
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\Config\FileLocator;
+use Symfony\Component\HttpKernel\DependencyInjection\Extension;
+use Symfony\Component\DependencyInjection\Loader;
+
+class WallabagFederationExtension extends Extension
+{
+    public function load(array $configs, ContainerBuilder $container)
+    {
+        $configuration = new Configuration();
+        $config = $this->processConfiguration($configuration, $configs);
+
+        $loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
+        $loader->load('services.yml');
+        $container->setParameter('wallabag_user.registration_enabled', $config['registration_enabled']);
+    }
+
+    public function getAlias()
+    {
+        return 'wallabag_federation';
+    }
+}
diff --git a/src/Wallabag/FederationBundle/Entity/Account.php b/src/Wallabag/FederationBundle/Entity/Account.php
new file mode 100644
index 00000000..c44050d9
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Entity/Account.php
@@ -0,0 +1,307 @@
+<?php
+
+namespace Wallabag\FederationBundle\Entity;
+
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
+use Doctrine\ORM\Mapping as ORM;
+use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
+use Symfony\Component\Validator\Constraints as Assert;
+use Wallabag\CoreBundle\Entity\Entry;
+use Wallabag\UserBundle\Entity\User;
+
+/**
+ * Account.
+ *
+ * @ORM\Entity(repositoryClass="Wallabag\FederationBundle\Repository\AccountRepository")
+ * @UniqueEntity(fields={"username", "server"}).
+ * @ORM\Table(name="`account`")
+ */
+class Account
+{
+    /**
+     * @var int
+     *
+     * @ORM\Column(name="id", type="integer")
+     * @ORM\Id
+     * @ORM\GeneratedValue(strategy="AUTO")
+     *
+     */
+    private $id;
+
+    /**
+     * @var string
+     *
+     * @ORM\Column(name="username", type="string")
+     */
+    private $username;
+
+    /**
+     * @var Instance
+     *
+     * @ORM\ManyToOne(targetEntity="Wallabag\FederationBundle\Entity\Instance", inversedBy="users")
+     */
+    private $server;
+
+    /**
+     * @var User
+     *
+     * @ORM\OneToOne(targetEntity="Wallabag\UserBundle\Entity\User", inversedBy="account")
+     * @ORM\JoinColumn(nullable=true)
+     */
+    private $user;
+
+    /**
+     * @var ArrayCollection
+     *
+     * @ORM\ManyToMany(targetEntity="Wallabag\FederationBundle\Entity\Account", mappedBy="following")
+     */
+    private $followers;
+
+    /**
+     * @var ArrayCollection
+     *
+     * @ORM\ManyToMany(targetEntity="Wallabag\FederationBundle\Entity\Account", inversedBy="followers")
+     * @ORM\JoinTable(name="follow",
+     *      joinColumns={@ORM\JoinColumn(name="account_id", referencedColumnName="id")},
+     *      inverseJoinColumns={@ORM\JoinColumn(name="follow_account_id", referencedColumnName="id")}
+     *      )
+     */
+    private $following;
+
+    /**
+     * @var string
+     *
+     * @ORM\Column(type="string", nullable=true)
+     *
+     * @Assert\File(mimeTypes={ "image/gif", "image/jpeg", "image/svg+xml", "image/webp", "image/png" })
+     */
+    private $avatar;
+
+    /**
+     * @var string
+     *
+     * @ORM\Column(type="string", nullable=true)
+     *
+     * @Assert\File(mimeTypes={ "image/gif", "image/jpeg", "image/svg+xml", "image/webp", "image/png" })
+     */
+    private $banner;
+
+    /**
+     * @var string
+     *
+     * @ORM\Column(type="text", nullable=true)
+     */
+    private $description;
+
+    /**
+     * Account constructor.
+     */
+    public function __construct()
+    {
+        $this->followers = new ArrayCollection();
+        $this->following = new ArrayCollection();
+        $this->liked = new ArrayCollection();
+    }
+
+    /**
+     * @return int
+     */
+    public function getId()
+    {
+        return $this->id;
+    }
+
+    /**
+     * @return string
+     */
+    public function getUsername()
+    {
+        return $this->username;
+    }
+
+    /**
+     * @param string $username
+     * @return Account
+     */
+    public function setUsername($username)
+    {
+        $this->username = $username;
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getServer()
+    {
+        return $this->server;
+    }
+
+    /**
+     * @param string $server
+     * @return Account
+     */
+    public function setServer($server)
+    {
+        $this->server = $server;
+        return $this;
+    }
+
+    /**
+     * @return User
+     */
+    public function getUser()
+    {
+        return $this->user;
+    }
+
+    /**
+     * @param User $user
+     * @return Account
+     */
+    public function setUser(User $user)
+    {
+        $this->user = $user;
+        return $this;
+    }
+
+    /**
+     * @return Collection
+     */
+    public function getFollowers()
+    {
+        return $this->followers;
+    }
+
+    /**
+     * @param Collection $followers
+     * @return Account
+     */
+    public function setFollowers($followers)
+    {
+        $this->followers = $followers;
+        return $this;
+    }
+
+    /**
+     * @param Account $account
+     * @return Account
+     */
+    public function addFollower(Account $account)
+    {
+        $this->followers->add($account);
+        return $this;
+    }
+
+    /**
+     * @return Collection
+     */
+    public function getFollowing()
+    {
+        return $this->following;
+    }
+
+    /**
+     * @param Collection $following
+     * @return Account
+     */
+    public function setFollowing(Collection $following)
+    {
+        $this->following = $following;
+        return $this;
+    }
+
+    /**
+     * @param Account $account
+     * @return Account
+     */
+    public function addFollowing(Account $account)
+    {
+        $this->following->add($account);
+        return $this;
+    }
+
+    /**
+     * @return Collection
+     */
+    public function getLiked()
+    {
+        return $this->liked;
+    }
+
+    /**
+     * @param Collection $liked
+     * @return Account
+     */
+    public function setLiked(Collection $liked)
+    {
+        $this->liked = $liked;
+        return $this;
+    }
+
+    /**
+     * @param Entry $entry
+     * @return Account
+     */
+    public function addLiked(Entry $entry)
+    {
+        $this->liked->add($entry);
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getAvatar()
+    {
+        return $this->avatar;
+    }
+
+    /**
+     * @param string $avatar
+     * @return Account
+     */
+    public function setAvatar($avatar)
+    {
+        $this->avatar = $avatar;
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getBanner()
+    {
+        return $this->banner;
+    }
+
+    /**
+     * @param string $banner
+     * @return Account
+     */
+    public function setBanner($banner)
+    {
+        $this->banner = $banner;
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getDescription()
+    {
+        return $this->description;
+    }
+
+    /**
+     * @param string $description
+     * @return Account
+     */
+    public function setDescription($description)
+    {
+        $this->description = $description;
+        return $this;
+    }
+
+}
diff --git a/src/Wallabag/FederationBundle/Entity/Instance.php b/src/Wallabag/FederationBundle/Entity/Instance.php
new file mode 100644
index 00000000..ff8960cd
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Entity/Instance.php
@@ -0,0 +1,111 @@
+<?php
+
+namespace Wallabag\FederationBundle\Entity;
+
+use Doctrine\ORM\Mapping as ORM;
+use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
+
+/**
+ * Account.
+ *
+ * @ORM\Entity
+ * @UniqueEntity(fields={"domain"}).
+ * @ORM\Table(name="`instance`")
+ */
+class Instance {
+    /**
+     * @var int
+     *
+     * @ORM\Column(name="id", type="integer")
+     * @ORM\Id
+     * @ORM\GeneratedValue(strategy="AUTO")
+     *
+     */
+    private $id;
+
+    /**
+     * @var string
+     *
+     * @ORM\Column(name="domain", type="string")
+     */
+    private $domain;
+
+    /**
+     * @var float
+     *
+     * @ORM\Column(name="score", type="float")
+     */
+    private $score = 0;
+
+    /**
+     * @var array
+     *
+     * @ORM\OneToMany(targetEntity="Wallabag\FederationBundle\Entity\Account", mappedBy="server")
+     */
+    private $users;
+
+    /**
+     * Instance constructor.
+     * @param string $domain
+     */
+    public function __construct($domain)
+    {
+        $this->domain = $domain;
+    }
+
+    /**
+     * @return int
+     */
+    public function getId()
+    {
+        return $this->id;
+    }
+
+    /**
+     * @return string
+     */
+    public function getDomain()
+    {
+        return $this->domain;
+    }
+
+    /**
+     * @param string $domain
+     */
+    public function setDomain($domain)
+    {
+        $this->domain = $domain;
+    }
+
+    /**
+     * @return float
+     */
+    public function getScore()
+    {
+        return $this->score;
+    }
+
+    /**
+     * @param float $score
+     */
+    public function setScore($score)
+    {
+        $this->score = $score;
+    }
+
+    /**
+     * @return array
+     */
+    public function getUsers()
+    {
+        return $this->users;
+    }
+
+    /**
+     * @param array $users
+     */
+    public function setUsers($users)
+    {
+        $this->users = $users;
+    }
+}
diff --git a/src/Wallabag/FederationBundle/EventListener/CreateAccountListener.php b/src/Wallabag/FederationBundle/EventListener/CreateAccountListener.php
new file mode 100644
index 00000000..92626b15
--- /dev/null
+++ b/src/Wallabag/FederationBundle/EventListener/CreateAccountListener.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Wallabag\FederationBundle\EventListener;
+
+use Doctrine\ORM\EntityManager;
+use FOS\UserBundle\Event\UserEvent;
+use FOS\UserBundle\FOSUserEvents;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Wallabag\CoreBundle\Entity\Config;
+use Wallabag\FederationBundle\Entity\Account;
+
+/**
+ * This listener will create the associated configuration when a user register.
+ * This configuration will be created right after the registration (no matter if it needs an email validation).
+ */
+class CreateAccountListener implements EventSubscriberInterface
+{
+    private $em;
+    private $domainName;
+
+    public function __construct(EntityManager $em, $domainName)
+    {
+        $this->em = $em;
+        $this->domainName = $domainName;
+    }
+
+    public static function getSubscribedEvents()
+    {
+        return [
+            // when a user register using the normal form
+            FOSUserEvents::REGISTRATION_COMPLETED => 'createAccount',
+            // when we manually create a user using the command line
+            // OR when we create it from the config UI
+            FOSUserEvents::USER_CREATED => 'createAccount',
+        ];
+    }
+
+    public function createAccount(UserEvent $event)
+    {
+        $user = $event->getUser();
+        $account = new Account();
+        $account->setUser($user)
+            ->setUsername($user->getUsername())
+            ->setServer($this->domainName);
+
+        $this->em->persist($account);
+
+        $user->setAccount($account);
+
+        $this->em->persist($user);
+        $this->em->flush();
+    }
+}
diff --git a/src/Wallabag/FederationBundle/Federation/CloudId.php b/src/Wallabag/FederationBundle/Federation/CloudId.php
new file mode 100644
index 00000000..038ea5e8
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Federation/CloudId.php
@@ -0,0 +1,78 @@
+<?php
+
+namespace Wallabag\FederationBundle\Federation;
+
+use Wallabag\FederationBundle\Entity\Account;
+
+class CloudId {
+
+    /** @var string */
+    private $id;
+
+    /** @var string */
+    private $user;
+
+    /** @var string */
+    private $remote;
+
+    /**
+     * CloudId constructor.
+     *
+     * @param string $id
+     */
+    public function __construct($id) {
+        $this->id = $id;
+
+        $atPos = strpos($id, '@');
+        $user = substr($id, 0, $atPos);
+        $remote = substr($id, $atPos + 1);
+        if (!empty($user) && !empty($remote)) {
+            $this->user = $user;
+            $this->remote = $remote;
+        }
+    }
+
+    /**
+     * The full remote cloud id
+     *
+     * @return string
+     */
+    public function getId() {
+        return $this->id;
+    }
+
+    public function getDisplayId() {
+        return str_replace('https://', '', str_replace('http://', '', $this->getId()));
+    }
+
+    /**
+     * The username on the remote server
+     *
+     * @return string
+     */
+    public function getUser() {
+        return $this->user;
+    }
+
+    /**
+     * The base address of the remote server
+     *
+     * @return string
+     */
+    public function getRemote() {
+        return $this->remote;
+    }
+
+    /**
+     * @param Account $account
+     * @param string $domain
+     * @return CloudId
+     */
+    public static function getCloudIdFromAccount(Account $account, $domain = '')
+    {
+        if ($account->getServer() !== null) {
+            return new self($account->getUsername() . '@' . $account->getServer());
+        }
+        return new self($account->getUsername() . '@' . $domain);
+    }
+}
diff --git a/src/Wallabag/FederationBundle/Form/Type/AccountType.php b/src/Wallabag/FederationBundle/Form/Type/AccountType.php
new file mode 100644
index 00000000..af291ced
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Form/Type/AccountType.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace Wallabag\FederationBundle\Form\Type;
+
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\FileType;
+use Symfony\Component\Form\Extension\Core\Type\SubmitType;
+use Symfony\Component\Form\Extension\Core\Type\TextareaType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+use Wallabag\FederationBundle\Entity\Account;
+
+class AccountType extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $builder
+            ->add('description', TextareaType::class, ['label' => 'config.form_account.description_label'])
+            ->add('avatar', FileType::class, [
+                'label' => 'config.form_account.avatar_label',
+                'required' => false,
+                'data_class' => null,
+            ])
+            ->add('banner', FileType::class, [
+                'label' => 'config.form_account.banner_label',
+                'required' => false,
+                'data_class' => null,
+            ])
+            ->add('save', SubmitType::class, [
+                'label' => 'config.form.save',
+            ])
+        ;
+    }
+
+    public function configureOptions(OptionsResolver $resolver)
+    {
+        $resolver->setDefaults(array(
+            'data_class' => Account::class,
+        ));
+    }
+
+    public function getBlockPrefix()
+    {
+        return 'update_account';
+    }
+}
diff --git a/src/Wallabag/FederationBundle/Repository/AccountRepository.php b/src/Wallabag/FederationBundle/Repository/AccountRepository.php
new file mode 100644
index 00000000..e39bc582
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Repository/AccountRepository.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Wallabag\FederationBundle\Repository;
+
+use Doctrine\ORM\EntityRepository;
+use Doctrine\ORM\QueryBuilder;
+
+class AccountRepository extends EntityRepository
+{
+    /**
+     * @param $accountId
+     * @return QueryBuilder
+     */
+    public function getBuilderForFollowingsByAccount($accountId)
+    {
+        return $this->createQueryBuilder('a')
+            ->select('f.id, f.username')
+            ->innerJoin('a.following', 'f')
+            ->where('a.id = :accountId')->setParameter('accountId', $accountId)
+            ;
+    }
+
+    /**
+     * @param $accountId
+     * @return QueryBuilder
+     */
+    public function getBuilderForFollowersByAccount($accountId)
+    {
+        return $this->createQueryBuilder('a')
+            ->innerJoin('a.followers', 'f')
+            ->where('a.id = :accountId')->setParameter('accountId', $accountId)
+            ;
+    }
+
+    /**
+     * @param $username
+     * @return QueryBuilder
+     * @throws \Doctrine\ORM\NonUniqueResultException
+     */
+    public function findAccountByUsername($username)
+    {
+        return $this->createQueryBuilder('a')
+            ->where('a.username = :username')->setParameter('username', $username)
+            ->andWhere('a.server = null')
+            ->getQuery()
+            ->getOneOrNullResult();
+    }
+}
diff --git a/src/Wallabag/FederationBundle/Repository/InstanceRepository.php b/src/Wallabag/FederationBundle/Repository/InstanceRepository.php
new file mode 100644
index 00000000..6365d5c4
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Repository/InstanceRepository.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Wallabag\FederationBundle\Repository;
+
+use Doctrine\ORM\EntityRepository;
+
+class InstanceRepository extends EntityRepository
+{
+
+}
diff --git a/src/Wallabag/FederationBundle/Resources/config/services.yml b/src/Wallabag/FederationBundle/Resources/config/services.yml
new file mode 100644
index 00000000..1b337bb2
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Resources/config/services.yml
@@ -0,0 +1,8 @@
+services:
+    wallabag_federation.listener.create_accounts:
+        class: Wallabag\FederationBundle\EventListener\CreateAccountListener
+        arguments:
+            - "@doctrine.orm.entity_manager"
+            - "%domain_name%"
+        tags:
+            - { name: kernel.event_subscriber }
diff --git a/src/Wallabag/FederationBundle/Resources/views/themes/material/User/followers.html.twig b/src/Wallabag/FederationBundle/Resources/views/themes/material/User/followers.html.twig
new file mode 100644
index 00000000..d31ccc33
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Resources/views/themes/material/User/followers.html.twig
@@ -0,0 +1,88 @@
+{% extends "WallabagCoreBundle::base.html.twig" %}
+
+{% block css %}
+    {{ parent() }}
+    {% if not app.debug %}
+        <link rel="stylesheet" href="{{ asset('bundles/wallabagcore/material.css') }}">
+    {% endif %}
+{% endblock %}
+
+{% block scripts %}
+    {{ parent() }}
+    <script src="{{ asset('bundles/wallabagcore/material' ~ (app.debug ? '.dev' : '') ~ '.js') }}"></script>
+{% endblock %}
+
+{% block header %}
+{% endblock %}
+
+{% block body_class %}reset-left{% endblock %}
+
+{% block messages %}
+    {% for flashMessage in app.session.flashbag.get('notice') %}
+        <script>
+            Materialize.toast('{{ flashMessage|trans }}', 4000);
+        </script>
+    {% endfor %}
+{% endblock %}
+
+{% block menu %}
+    <nav class="cyan darken-1">
+        <div class="nav-wrapper nav-panels">
+            <a href="#" data-activates="slide-out" class="nav-panel-menu button-collapse"><i class="material-icons">menu</i></a>
+            <div class="left action">
+                <a href="{{ path('homepage') }}">wallabag</a>
+            </div>
+            <ul class="input-field nav-panel-buttom">
+                {% if not is_granted('IS_AUTHENTICATED_FULLY') %}
+                    <li>
+                        <a href="{{ path('fos_user_security_login') }}">Login</a>
+                    </li>
+                    {% if registration_enabled %}
+                        <li>
+                            <a href="{{ path('fos_user_registration_register') }}">Register</a>
+                        </li>
+                    {% endif %}
+                {% else %}
+                    <li>
+                        <a href="{{ path('fos_user_security_logout') }}">Logout</a>
+                    </li>
+                {% endif %}
+            </ul>
+        </div>
+    </nav>
+
+{% endblock %}
+
+{% block content %}
+<div class="container">
+    <div class="row">
+        <div class="col offset-s2 s8">
+            {{ include('@WallabagFederation/themes/material/User/profile_header.html.twig') }}
+            <ul class="collection">
+            {% for account in users %}
+                <li class="collection-item avatar">
+                    <i class="material-icons circle">folder</i>
+                    <span class="title">{{ account.username }}@{{ account.server }}</span>
+                    <p>First Line</p>
+                    <a href="#!" class="secondary-content"><i class="material-icons">grade</i></a>
+                </li>
+            {% endfor %}
+            </ul>
+        </div>
+    </div>
+</div>
+{% endblock %}
+
+{% block footer %}
+    <footer class="page-footer cyan darken-2">
+        <div class="footer-copyright">
+            <div class="container">
+                <div class="row right">
+                    <p>
+                        {{ 'footer.wallabag.powered_by'|trans }} <a target="_blank" href="https://wallabag.org" class="grey-text text-lighten-4">wallabag</a>
+                    </p>
+                </div>
+            </div>
+        </div>
+    </footer>
+{% endblock %}
diff --git a/src/Wallabag/FederationBundle/Resources/views/themes/material/User/profile.html.twig b/src/Wallabag/FederationBundle/Resources/views/themes/material/User/profile.html.twig
new file mode 100644
index 00000000..c52d0ca4
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Resources/views/themes/material/User/profile.html.twig
@@ -0,0 +1,77 @@
+{% extends "WallabagCoreBundle::base.html.twig" %}
+
+{% block css %}
+    {{ parent() }}
+    {% if not app.debug %}
+        <link rel="stylesheet" href="{{ asset('bundles/wallabagcore/material.css') }}">
+    {% endif %}
+{% endblock %}
+
+{% block scripts %}
+    {{ parent() }}
+    <script src="{{ asset('bundles/wallabagcore/material' ~ (app.debug ? '.dev' : '') ~ '.js') }}"></script>
+{% endblock %}
+
+{% block header %}
+{% endblock %}
+
+{% block body_class %}reset-left{% endblock %}
+
+{% block messages %}
+    {% for flashMessage in app.session.flashbag.get('notice') %}
+        <script>
+            Materialize.toast('{{ flashMessage|trans }}', 4000);
+        </script>
+    {% endfor %}
+{% endblock %}
+
+{% block menu %}
+<nav class="cyan darken-1">
+    <div class="nav-wrapper nav-panels">
+        <a href="#" data-activates="slide-out" class="nav-panel-menu button-collapse"><i class="material-icons">menu</i></a>
+        <div class="left action">
+            <a href="{{ path('homepage') }}">wallabag</a>
+        </div>
+        <ul class="input-field nav-panel-buttom">
+            {% if not is_granted('IS_AUTHENTICATED_FULLY') %}
+                <li>
+                    <a href="{{ path('fos_user_security_login') }}">Login</a>
+                </li>
+                {% if registration_enabled %}
+                    <li>
+                        <a href="{{ path('fos_user_registration_register') }}">Register</a>
+                    </li>
+                {% endif %}
+            {% else %}
+                <li>
+                    <a href="{{ path('fos_user_security_logout') }}">Logout</a>
+                </li>
+            {% endif %}
+        </ul>
+    </div>
+</nav>
+
+{% endblock %}
+
+{% block content %}
+    <div class="container">
+        <div class="row">
+            <div class="col offset-l2 l8">
+                {{ include('@WallabagFederation/themes/material/User/profile_header.html.twig') }}
+        </div>
+    </div>
+{% endblock %}
+
+{% block footer %}
+    <footer class="page-footer cyan darken-2">
+        <div class="footer-copyright">
+            <div class="container">
+                <div class="row right">
+                    <p>
+                        {{ 'footer.wallabag.powered_by'|trans }} <a target="_blank" href="https://wallabag.org" class="grey-text text-lighten-4">wallabag</a>
+                    </p>
+                </div>
+            </div>
+        </div>
+    </footer>
+{% endblock %}
diff --git a/src/Wallabag/FederationBundle/Resources/views/themes/material/User/profile_header.html.twig b/src/Wallabag/FederationBundle/Resources/views/themes/material/User/profile_header.html.twig
new file mode 100644
index 00000000..703de79f
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Resources/views/themes/material/User/profile_header.html.twig
@@ -0,0 +1,35 @@
+{% set usershow = user.username %}
+{% if user.user.name is not null %}
+    {% set usershow = user.user.name %}
+{% endif %}
+
+<p>
+    {{ usershow }} utilise wallabag pour lire et archiver son contenu. Vous pouvez le/la suivre et interagir si vous possédez un compte quelque part dans le "fediverse". Si ce n'est pas le cas, vous pouvez en créer un ici.
+</p>
+<div class="card grey lighten-5 z-depth-1 profile">
+    <div class="card-content">
+        <img src="{{ asset('uploads/media/avatar/') ~ user.avatar }}" alt="" class="circle responsive-img center-block avatar">
+        <h3 class="center-align">{{ usershow }}</h3>
+        <h6 class="center-align">@{{ user.username }}</h6>
+        <a class="btn-floating btn-large halfway-fab waves-effect waves-light red" href="{{ path('follow-user', {'userToFollow': user.username}) }}"><i class="material-icons">person_add</i></a>
+        <div class="details">
+            <div class="bio">
+                <p>{{ user.description }}</p>
+            </div>
+            <div class="details-counters">
+                <div class="counter">
+                    <a href="{{ path('followers', {'user': user.username}) }}">
+                        <span class="counter-label">Followers</span>
+                        <span class="counter-number">{{ user.followers | length }}</span>
+                    </a>
+                </div>
+                <div class="counter">
+                    <a href="{{ path('following', {'user': user.username}) }}">
+                        <span class="counter-label">Following</span>
+                        <span class="counter-number">{{ user.following | length }}</span>
+                    </a>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
diff --git a/src/Wallabag/FederationBundle/Resources/views/themes/material/User/recommendations.html.twig b/src/Wallabag/FederationBundle/Resources/views/themes/material/User/recommendations.html.twig
new file mode 100644
index 00000000..b3d0d2cf
--- /dev/null
+++ b/src/Wallabag/FederationBundle/Resources/views/themes/material/User/recommendations.html.twig
@@ -0,0 +1,4 @@
+{{ dump(recommendations) }}
+{% for entry in recommendations %}
+{{ include('@WallabagCore/themes/material/Entry/_card_list.html.twig') }}
+{% endfor %}
diff --git a/src/Wallabag/FederationBundle/WallabagFederationBundle.php b/src/Wallabag/FederationBundle/WallabagFederationBundle.php
new file mode 100644
index 00000000..f9bd665a
--- /dev/null
+++ b/src/Wallabag/FederationBundle/WallabagFederationBundle.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Wallabag\FederationBundle;
+
+use Symfony\Component\HttpKernel\Bundle\Bundle;
+
+class WallabagFederationBundle extends Bundle
+{
+}
-- 
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