17 files changed, 1457 insertions, 0 deletions

diff --git a/application/front/controller/admin/ConfigureController.php b/application/front/controller/admin/ConfigureController.php
new file mode 100644
index 00000000..0ed7ad81
--- /dev/null
+++ b/application/front/controller/admin/ConfigureController.php
@@ -0,0 +1,126 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Languages;
+use Shaarli\Render\TemplatePage;
+use Shaarli\Render\ThemeUtils;
+use Shaarli\Thumbnailer;
+use Slim\Http\Request;
+use Slim\Http\Response;
+use Throwable;
+
+/**
+ * Class ConfigureController
+ *
+ * Slim controller used to handle Shaarli configuration page (display + save new config).
+ */
+class ConfigureController extends ShaarliAdminController
+{
+    /**
+     * GET /admin/configure - Displays the configuration page
+     */
+    public function index(Request $request, Response $response): Response
+    {
+        $this->assignView('title', $this->container->conf->get('general.title', 'Shaarli'));
+        $this->assignView('theme', $this->container->conf->get('resource.theme'));
+        $this->assignView(
+            'theme_available',
+            ThemeUtils::getThemes($this->container->conf->get('resource.raintpl_tpl'))
+        );
+        $this->assignView('formatter_available', ['default', 'markdown', 'markdownExtra']);
+        list($continents, $cities) = generateTimeZoneData(
+            timezone_identifiers_list(),
+            $this->container->conf->get('general.timezone')
+        );
+        $this->assignView('continents', $continents);
+        $this->assignView('cities', $cities);
+        $this->assignView('retrieve_description', $this->container->conf->get('general.retrieve_description', false));
+        $this->assignView('private_links_default', $this->container->conf->get('privacy.default_private_links', false));
+        $this->assignView(
+            'session_protection_disabled',
+            $this->container->conf->get('security.session_protection_disabled', false)
+        );
+        $this->assignView('enable_rss_permalinks', $this->container->conf->get('feed.rss_permalinks', false));
+        $this->assignView('enable_update_check', $this->container->conf->get('updates.check_updates', true));
+        $this->assignView('hide_public_links', $this->container->conf->get('privacy.hide_public_links', false));
+        $this->assignView('api_enabled', $this->container->conf->get('api.enabled', true));
+        $this->assignView('api_secret', $this->container->conf->get('api.secret'));
+        $this->assignView('languages', Languages::getAvailableLanguages());
+        $this->assignView('gd_enabled', extension_loaded('gd'));
+        $this->assignView('thumbnails_mode', $this->container->conf->get('thumbnails.mode', Thumbnailer::MODE_NONE));
+        $this->assignView('pagetitle', t('Configure') .' - '. $this->container->conf->get('general.title', 'Shaarli'));
+
+        return $response->write($this->render(TemplatePage::CONFIGURE));
+    }
+
+    /**
+     * POST /admin/configure - Update Shaarli's configuration
+     */
+    public function save(Request $request, Response $response): Response
+    {
+        $this->checkToken($request);
+
+        $continent = $request->getParam('continent');
+        $city = $request->getParam('city');
+        $tz = 'UTC';
+        if (null !== $continent && null !== $city && isTimeZoneValid($continent, $city)) {
+            $tz = $continent . '/' . $city;
+        }
+
+        $this->container->conf->set('general.timezone', $tz);
+        $this->container->conf->set('general.title', escape($request->getParam('title')));
+        $this->container->conf->set('general.header_link', escape($request->getParam('titleLink')));
+        $this->container->conf->set('general.retrieve_description', !empty($request->getParam('retrieveDescription')));
+        $this->container->conf->set('resource.theme', escape($request->getParam('theme')));
+        $this->container->conf->set(
+            'security.session_protection_disabled',
+            !empty($request->getParam('disablesessionprotection'))
+        );
+        $this->container->conf->set(
+            'privacy.default_private_links',
+            !empty($request->getParam('privateLinkByDefault'))
+        );
+        $this->container->conf->set('feed.rss_permalinks', !empty($request->getParam('enableRssPermalinks')));
+        $this->container->conf->set('updates.check_updates', !empty($request->getParam('updateCheck')));
+        $this->container->conf->set('privacy.hide_public_links', !empty($request->getParam('hidePublicLinks')));
+        $this->container->conf->set('api.enabled', !empty($request->getParam('enableApi')));
+        $this->container->conf->set('api.secret', escape($request->getParam('apiSecret')));
+        $this->container->conf->set('formatter', escape($request->getParam('formatter')));
+
+        if (!empty($request->getParam('language'))) {
+            $this->container->conf->set('translation.language', escape($request->getParam('language')));
+        }
+
+        $thumbnailsMode = extension_loaded('gd') ? $request->getParam('enableThumbnails') : Thumbnailer::MODE_NONE;
+        if ($thumbnailsMode !== Thumbnailer::MODE_NONE
+            && $thumbnailsMode !== $this->container->conf->get('thumbnails.mode', Thumbnailer::MODE_NONE)
+        ) {
+            $this->saveWarningMessage(
+                t('You have enabled or changed thumbnails mode.') .
+                '<a href="'. $this->container->basePath .'/admin/thumbnails">' . t('Please synchronize them.') .'</a>'
+            );
+        }
+        $this->container->conf->set('thumbnails.mode', $thumbnailsMode);
+
+        try {
+            $this->container->conf->write($this->container->loginManager->isLoggedIn());
+            $this->container->history->updateSettings();
+            $this->container->pageCacheManager->invalidateCaches();
+        } catch (Throwable $e) {
+            $this->assignView('message', t('Error while writing config file after configuration update.'));
+
+            if ($this->container->conf->get('dev.debug', false)) {
+                $this->assignView('stacktrace', $e->getMessage() . PHP_EOL . $e->getTraceAsString());
+            }
+
+            return $response->write($this->render('error'));
+        }
+
+        $this->saveSuccessMessage(t('Configuration was saved.'));
+
+        return $this->redirect($response, '/admin/configure');
+    }
+}
diff --git a/application/front/controller/admin/ExportController.php b/application/front/controller/admin/ExportController.php
new file mode 100644
index 00000000..2be957fa
--- /dev/null
+++ b/application/front/controller/admin/ExportController.php
@@ -0,0 +1,80 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use DateTime;
+use Shaarli\Bookmark\Bookmark;
+use Shaarli\Render\TemplatePage;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Class ExportController
+ *
+ * Slim controller used to display Shaarli data export page,
+ * and process the bookmarks export as a Netscape Bookmarks file.
+ */
+class ExportController extends ShaarliAdminController
+{
+    /**
+     * GET /admin/export - Display export page
+     */
+    public function index(Request $request, Response $response): Response
+    {
+        $this->assignView('pagetitle', t('Export') .' - '. $this->container->conf->get('general.title', 'Shaarli'));
+
+        return $response->write($this->render(TemplatePage::EXPORT));
+    }
+
+    /**
+     * POST /admin/export - Process export, and serve download file named
+     *                      bookmarks_(all|private|public)_datetime.html
+     */
+    public function export(Request $request, Response $response): Response
+    {
+        $this->checkToken($request);
+
+        $selection = $request->getParam('selection');
+
+        if (empty($selection)) {
+            $this->saveErrorMessage(t('Please select an export mode.'));
+
+            return $this->redirect($response, '/admin/export');
+        }
+
+        $prependNoteUrl = filter_var($request->getParam('prepend_note_url') ?? false, FILTER_VALIDATE_BOOLEAN);
+
+        try {
+            $formatter = $this->container->formatterFactory->getFormatter('raw');
+
+            $this->assignView(
+                'links',
+                $this->container->netscapeBookmarkUtils->filterAndFormat(
+                    $formatter,
+                    $selection,
+                    $prependNoteUrl,
+                    index_url($this->container->environment)
+                )
+            );
+        } catch (\Exception $exc) {
+            $this->saveErrorMessage($exc->getMessage());
+
+            return $this->redirect($response, '/admin/export');
+        }
+
+        $now = new DateTime();
+        $response = $response->withHeader('Content-Type', 'text/html; charset=utf-8');
+        $response = $response->withHeader(
+            'Content-disposition',
+            'attachment; filename=bookmarks_'.$selection.'_'.$now->format(Bookmark::LINK_DATE_FORMAT).'.html'
+        );
+
+        $this->assignView('date', $now->format(DateTime::RFC822));
+        $this->assignView('eol', PHP_EOL);
+        $this->assignView('selection', $selection);
+
+        return $response->write($this->render(TemplatePage::NETSCAPE_EXPORT_BOOKMARKS));
+    }
+}
diff --git a/application/front/controller/admin/ImportController.php b/application/front/controller/admin/ImportController.php
new file mode 100644
index 00000000..758d5ef9
--- /dev/null
+++ b/application/front/controller/admin/ImportController.php
@@ -0,0 +1,82 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Psr\Http\Message\UploadedFileInterface;
+use Shaarli\Render\TemplatePage;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Class ImportController
+ *
+ * Slim controller used to display Shaarli data import page,
+ * and import bookmarks from Netscape Bookmarks file.
+ */
+class ImportController extends ShaarliAdminController
+{
+    /**
+     * GET /admin/import - Display import page
+     */
+    public function index(Request $request, Response $response): Response
+    {
+        $this->assignView(
+            'maxfilesize',
+            get_max_upload_size(
+                ini_get('post_max_size'),
+                ini_get('upload_max_filesize'),
+                false
+            )
+        );
+        $this->assignView(
+            'maxfilesizeHuman',
+            get_max_upload_size(
+                ini_get('post_max_size'),
+                ini_get('upload_max_filesize'),
+                true
+            )
+        );
+        $this->assignView('pagetitle', t('Import') .' - '. $this->container->conf->get('general.title', 'Shaarli'));
+
+        return $response->write($this->render(TemplatePage::IMPORT));
+    }
+
+    /**
+     * POST /admin/import - Process import file provided and create bookmarks
+     */
+    public function import(Request $request, Response $response): Response
+    {
+        $this->checkToken($request);
+
+        $file = ($request->getUploadedFiles() ?? [])['filetoupload'] ?? null;
+        if (!$file instanceof UploadedFileInterface) {
+            $this->saveErrorMessage(t('No import file provided.'));
+
+            return $this->redirect($response, '/admin/import');
+        }
+
+
+        // Import bookmarks from an uploaded file
+        if (0 === $file->getSize()) {
+            // The file is too big or some form field may be missing.
+            $msg = sprintf(
+                t(
+                    'The file you are trying to upload is probably bigger than what this webserver can accept'
+                    .' (%s). Please upload in smaller chunks.'
+                ),
+                get_max_upload_size(ini_get('post_max_size'), ini_get('upload_max_filesize'))
+            );
+            $this->saveErrorMessage($msg);
+
+            return $this->redirect($response, '/admin/import');
+        }
+
+        $status = $this->container->netscapeBookmarkUtils->import($request->getParams(), $file);
+
+        $this->saveSuccessMessage($status);
+
+        return $this->redirect($response, '/admin/import');
+    }
+}
diff --git a/application/front/controller/admin/LogoutController.php b/application/front/controller/admin/LogoutController.php
new file mode 100644
index 00000000..28165129
--- /dev/null
+++ b/application/front/controller/admin/LogoutController.php
@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Security\CookieManager;
+use Shaarli\Security\LoginManager;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Class LogoutController
+ *
+ * Slim controller used to logout the user.
+ * It invalidates page cache and terminate the user session. Then it redirects to the homepage.
+ */
+class LogoutController extends ShaarliAdminController
+{
+    public function index(Request $request, Response $response): Response
+    {
+        $this->container->pageCacheManager->invalidateCaches();
+        $this->container->sessionManager->logout();
+        $this->container->cookieManager->setCookieParameter(
+            CookieManager::STAY_SIGNED_IN,
+            'false',
+            0,
+            $this->container->basePath . '/'
+        );
+
+        return $this->redirect($response, '/');
+    }
+}
diff --git a/application/front/controller/admin/ManageTagController.php b/application/front/controller/admin/ManageTagController.php
new file mode 100644
index 00000000..2065c3e2
--- /dev/null
+++ b/application/front/controller/admin/ManageTagController.php
@@ -0,0 +1,88 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Bookmark\BookmarkFilter;
+use Shaarli\Render\TemplatePage;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Class ManageTagController
+ *
+ * Slim controller used to handle Shaarli manage tags page (rename and delete tags).
+ */
+class ManageTagController extends ShaarliAdminController
+{
+    /**
+     * GET /admin/tags - Displays the manage tags page
+     */
+    public function index(Request $request, Response $response): Response
+    {
+        $fromTag = $request->getParam('fromtag') ?? '';
+
+        $this->assignView('fromtag', escape($fromTag));
+        $this->assignView(
+            'pagetitle',
+            t('Manage tags') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+        );
+
+        return $response->write($this->render(TemplatePage::CHANGE_TAG));
+    }
+
+    /**
+     * POST /admin/tags - Update or delete provided tag
+     */
+    public function save(Request $request, Response $response): Response
+    {
+        $this->checkToken($request);
+
+        $isDelete = null !== $request->getParam('deletetag') && null === $request->getParam('renametag');
+
+        $fromTag = trim($request->getParam('fromtag') ?? '');
+        $toTag = trim($request->getParam('totag') ?? '');
+
+        if (0 === strlen($fromTag) || false === $isDelete && 0 === strlen($toTag)) {
+            $this->saveWarningMessage(t('Invalid tags provided.'));
+
+            return $this->redirect($response, '/admin/tags');
+        }
+
+        // TODO: move this to bookmark service
+        $count = 0;
+        $bookmarks = $this->container->bookmarkService->search(['searchtags' => $fromTag], BookmarkFilter::$ALL, true);
+        foreach ($bookmarks as $bookmark) {
+            if (false === $isDelete) {
+                $bookmark->renameTag($fromTag, $toTag);
+            } else {
+                $bookmark->deleteTag($fromTag);
+            }
+
+            $this->container->bookmarkService->set($bookmark, false);
+            $this->container->history->updateLink($bookmark);
+            $count++;
+        }
+
+        $this->container->bookmarkService->save();
+
+        if (true === $isDelete) {
+            $alert = sprintf(
+                t('The tag was removed from %d bookmark.', 'The tag was removed from %d bookmarks.', $count),
+                $count
+            );
+        } else {
+            $alert = sprintf(
+                t('The tag was renamed in %d bookmark.', 'The tag was renamed in %d bookmarks.', $count),
+                $count
+            );
+        }
+
+        $this->saveSuccessMessage($alert);
+
+        $redirect = true === $isDelete ? '/admin/tags' : '/?searchtags='. urlencode($toTag);
+
+        return $this->redirect($response, $redirect);
+    }
+}
diff --git a/application/front/controller/admin/MetadataController.php b/application/front/controller/admin/MetadataController.php
new file mode 100644
index 00000000..ff845944
--- /dev/null
+++ b/application/front/controller/admin/MetadataController.php
@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Controller used to retrieve/update bookmark's metadata.
+ */
+class MetadataController extends ShaarliAdminController
+{
+    /**
+     * GET /admin/metadata/{url} - Attempt to retrieve the bookmark title from provided URL.
+     */
+    public function ajaxRetrieveTitle(Request $request, Response $response): Response
+    {
+        $url = $request->getParam('url');
+
+        // Only try to extract metadata from URL with HTTP(s) scheme
+        if (!empty($url) && strpos(get_url_scheme($url) ?: '', 'http') !== false) {
+            return $response->withJson($this->container->metadataRetriever->retrieve($url));
+        }
+
+        return $response->withJson([]);
+    }
+}
diff --git a/application/front/controller/admin/PasswordController.php b/application/front/controller/admin/PasswordController.php
new file mode 100644
index 00000000..5ec0d24b
--- /dev/null
+++ b/application/front/controller/admin/PasswordController.php
@@ -0,0 +1,101 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Container\ShaarliContainer;
+use Shaarli\Front\Exception\OpenShaarliPasswordException;
+use Shaarli\Front\Exception\ShaarliFrontException;
+use Shaarli\Render\TemplatePage;
+use Slim\Http\Request;
+use Slim\Http\Response;
+use Throwable;
+
+/**
+ * Class PasswordController
+ *
+ * Slim controller used to handle passwords update.
+ */
+class PasswordController extends ShaarliAdminController
+{
+    public function __construct(ShaarliContainer $container)
+    {
+        parent::__construct($container);
+
+        $this->assignView(
+            'pagetitle',
+            t('Change password') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+        );
+    }
+
+    /**
+     * GET /admin/password - Displays the change password template
+     */
+    public function index(Request $request, Response $response): Response
+    {
+        return $response->write($this->render(TemplatePage::CHANGE_PASSWORD));
+    }
+
+    /**
+     * POST /admin/password - Change admin password - existing and new passwords need to be provided.
+     */
+    public function change(Request $request, Response $response): Response
+    {
+        $this->checkToken($request);
+
+        if ($this->container->conf->get('security.open_shaarli', false)) {
+            throw new OpenShaarliPasswordException();
+        }
+
+        $oldPassword = $request->getParam('oldpassword');
+        $newPassword = $request->getParam('setpassword');
+
+        if (empty($newPassword) || empty($oldPassword)) {
+            $this->saveErrorMessage(t('You must provide the current and new password to change it.'));
+
+            return $response
+                ->withStatus(400)
+                ->write($this->render(TemplatePage::CHANGE_PASSWORD))
+            ;
+        }
+
+        // Make sure old password is correct.
+        $oldHash = sha1(
+            $oldPassword .
+            $this->container->conf->get('credentials.login') .
+            $this->container->conf->get('credentials.salt')
+        );
+
+        if ($oldHash !== $this->container->conf->get('credentials.hash')) {
+            $this->saveErrorMessage(t('The old password is not correct.'));
+
+            return $response
+                ->withStatus(400)
+                ->write($this->render(TemplatePage::CHANGE_PASSWORD))
+            ;
+        }
+
+        // Save new password
+        // Salt renders rainbow-tables attacks useless.
+        $this->container->conf->set('credentials.salt', sha1(uniqid('', true) .'_'. mt_rand()));
+        $this->container->conf->set(
+            'credentials.hash',
+            sha1(
+                $newPassword
+                . $this->container->conf->get('credentials.login')
+                . $this->container->conf->get('credentials.salt')
+            )
+        );
+
+        try {
+            $this->container->conf->write($this->container->loginManager->isLoggedIn());
+        } catch (Throwable $e) {
+            throw new ShaarliFrontException($e->getMessage(), 500, $e);
+        }
+
+        $this->saveSuccessMessage(t('Your password has been changed'));
+
+        return $response->write($this->render(TemplatePage::CHANGE_PASSWORD));
+    }
+}
diff --git a/application/front/controller/admin/PluginsController.php b/application/front/controller/admin/PluginsController.php
new file mode 100644
index 00000000..8e059681
--- /dev/null
+++ b/application/front/controller/admin/PluginsController.php
@@ -0,0 +1,85 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Exception;
+use Shaarli\Render\TemplatePage;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Class PluginsController
+ *
+ * Slim controller used to handle Shaarli plugins configuration page (display + save new config).
+ */
+class PluginsController extends ShaarliAdminController
+{
+    /**
+     * GET /admin/plugins - Displays the configuration page
+     */
+    public function index(Request $request, Response $response): Response
+    {
+        $pluginMeta = $this->container->pluginManager->getPluginsMeta();
+
+        // Split plugins into 2 arrays: ordered enabled plugins and disabled.
+        $enabledPlugins = array_filter($pluginMeta, function ($v) {
+            return ($v['order'] ?? false) !== false;
+        });
+        $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $this->container->conf->get('plugins', []));
+        uasort(
+            $enabledPlugins,
+            function ($a, $b) {
+                return $a['order'] - $b['order'];
+            }
+        );
+        $disabledPlugins = array_filter($pluginMeta, function ($v) {
+            return ($v['order'] ?? false) === false;
+        });
+
+        $this->assignView('enabledPlugins', $enabledPlugins);
+        $this->assignView('disabledPlugins', $disabledPlugins);
+        $this->assignView(
+            'pagetitle',
+            t('Plugin Administration') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+        );
+
+        return $response->write($this->render(TemplatePage::PLUGINS_ADMIN));
+    }
+
+    /**
+     * POST /admin/plugins - Update Shaarli's configuration
+     */
+    public function save(Request $request, Response $response): Response
+    {
+        $this->checkToken($request);
+
+        try {
+            $parameters = $request->getParams() ?? [];
+
+            $this->executePageHooks('save_plugin_parameters', $parameters);
+
+            if (isset($parameters['parameters_form'])) {
+                unset($parameters['parameters_form']);
+                unset($parameters['token']);
+                foreach ($parameters as $param => $value) {
+                    $this->container->conf->set('plugins.'. $param, escape($value));
+                }
+            } else {
+                $this->container->conf->set('general.enabled_plugins', save_plugin_config($parameters));
+            }
+
+            $this->container->conf->write($this->container->loginManager->isLoggedIn());
+            $this->container->history->updateSettings();
+
+            $this->saveSuccessMessage(t('Setting successfully saved.'));
+        } catch (Exception $e) {
+            $this->saveErrorMessage(
+                t('Error while saving plugin configuration: ') . PHP_EOL . $e->getMessage()
+            );
+        }
+
+        return $this->redirect($response, '/admin/plugins');
+    }
+}
diff --git a/application/front/controller/admin/ServerController.php b/application/front/controller/admin/ServerController.php
new file mode 100644
index 00000000..bfc99422
--- /dev/null
+++ b/application/front/controller/admin/ServerController.php
@@ -0,0 +1,87 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Helper\ApplicationUtils;
+use Shaarli\Helper\FileUtils;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Slim controller used to handle Server administration page, and actions.
+ */
+class ServerController extends ShaarliAdminController
+{
+    /** @var string Cache type - main - by default pagecache/ and tmp/ */
+    protected const CACHE_MAIN = 'main';
+
+    /** @var string Cache type - thumbnails - by default cache/ */
+    protected const CACHE_THUMB = 'thumbnails';
+
+    /**
+     * GET /admin/server - Display page Server administration
+     */
+    public function index(Request $request, Response $response): Response
+    {
+        $latestVersion = 'v' . ApplicationUtils::getVersion(
+            ApplicationUtils::$GIT_RAW_URL . '/latest/' . ApplicationUtils::$VERSION_FILE
+        );
+        $currentVersion = ApplicationUtils::getVersion('./shaarli_version.php');
+        $currentVersion = $currentVersion === 'dev' ? $currentVersion : 'v' . $currentVersion;
+        $phpEol = new \DateTimeImmutable(ApplicationUtils::getPhpEol(PHP_VERSION));
+
+        $this->assignView('php_version', PHP_VERSION);
+        $this->assignView('php_eol', format_date($phpEol, false));
+        $this->assignView('php_has_reached_eol', $phpEol < new \DateTimeImmutable());
+        $this->assignView('php_extensions', ApplicationUtils::getPhpExtensionsRequirement());
+        $this->assignView('permissions', ApplicationUtils::checkResourcePermissions($this->container->conf));
+        $this->assignView('release_url', ApplicationUtils::$GITHUB_URL . '/releases/tag/' . $latestVersion);
+        $this->assignView('latest_version', $latestVersion);
+        $this->assignView('current_version', $currentVersion);
+        $this->assignView('thumbnails_mode', $this->container->conf->get('thumbnails.mode'));
+        $this->assignView('index_url', index_url($this->container->environment));
+        $this->assignView('client_ip', client_ip_id($this->container->environment));
+        $this->assignView('trusted_proxies', $this->container->conf->get('security.trusted_proxies', []));
+
+        $this->assignView(
+            'pagetitle',
+            t('Server administration') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
+        );
+
+        return $response->write($this->render('server'));
+    }
+
+    /**
+     * GET /admin/clear-cache?type={$type} - Action to trigger cache folder clearing (either main or thumbnails).
+     */
+    public function clearCache(Request $request, Response $response): Response
+    {
+        $exclude = ['.htaccess'];
+
+        if ($request->getQueryParam('type') === static::CACHE_THUMB) {
+            $folders = [$this->container->conf->get('resource.thumbnails_cache')];
+
+            $this->saveWarningMessage(
+                t('Thumbnails cache has been cleared.') . ' ' .
+                '<a href="'. $this->container->basePath .'/admin/thumbnails">' . t('Please synchronize them.') .'</a>'
+            );
+        } else {
+            $folders = [
+                $this->container->conf->get('resource.page_cache'),
+                $this->container->conf->get('resource.raintpl_tmp'),
+            ];
+
+            $this->saveSuccessMessage(t('Shaarli\'s cache folder has been cleared!'));
+        }
+
+        // Make sure that we don't delete root cache folder
+        $folders = array_map('realpath', array_values(array_filter(array_map('trim', $folders))));
+        foreach ($folders as $folder) {
+            FileUtils::clearFolder($folder, false, $exclude);
+        }
+
+        return $this->redirect($response, '/admin/server');
+    }
+}
diff --git a/application/front/controller/admin/SessionFilterController.php b/application/front/controller/admin/SessionFilterController.php
new file mode 100644
index 00000000..d9a7a2e0
--- /dev/null
+++ b/application/front/controller/admin/SessionFilterController.php
@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Bookmark\BookmarkFilter;
+use Shaarli\Security\SessionManager;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Class SessionFilterController
+ *
+ * Slim controller used to handle filters stored in the user session, such as visibility, etc.
+ */
+class SessionFilterController extends ShaarliAdminController
+{
+    /**
+     * GET /admin/visibility: allows to display only public or only private bookmarks in linklist
+     */
+    public function visibility(Request $request, Response $response, array $args): Response
+    {
+        if (false === $this->container->loginManager->isLoggedIn()) {
+            return $this->redirectFromReferer($request, $response, ['visibility']);
+        }
+
+        $newVisibility = $args['visibility'] ?? null;
+        if (false === in_array($newVisibility, [BookmarkFilter::$PRIVATE, BookmarkFilter::$PUBLIC], true)) {
+            $newVisibility = null;
+        }
+
+        $currentVisibility = $this->container->sessionManager->getSessionParameter(SessionManager::KEY_VISIBILITY);
+
+        // Visibility not set or not already expected value, set expected value, otherwise reset it
+        if ($newVisibility !== null && (null === $currentVisibility || $currentVisibility !== $newVisibility)) {
+            // See only public bookmarks
+            $this->container->sessionManager->setSessionParameter(
+                SessionManager::KEY_VISIBILITY,
+                $newVisibility
+            );
+        } else {
+            $this->container->sessionManager->deleteSessionParameter(SessionManager::KEY_VISIBILITY);
+        }
+
+        return $this->redirectFromReferer($request, $response, ['visibility']);
+    }
+
+
+}
diff --git a/application/front/controller/admin/ShaareAddController.php b/application/front/controller/admin/ShaareAddController.php
new file mode 100644
index 00000000..8dc386b2
--- /dev/null
+++ b/application/front/controller/admin/ShaareAddController.php
@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Formatter\BookmarkMarkdownFormatter;
+use Shaarli\Render\TemplatePage;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+class ShaareAddController extends ShaarliAdminController
+{
+    /**
+     * GET /admin/add-shaare - Displays the form used to create a new bookmark from an URL
+     */
+    public function addShaare(Request $request, Response $response): Response
+    {
+        $tags = $this->container->bookmarkService->bookmarksCountPerTag();
+        if ($this->container->conf->get('formatter') === 'markdown') {
+            $tags[BookmarkMarkdownFormatter::NO_MD_TAG] = 1;
+        }
+
+        $this->assignView(
+            'pagetitle',
+            t('Shaare a new link') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+        );
+        $this->assignView('tags', $tags);
+        $this->assignView('default_private_links', $this->container->conf->get('privacy.default_private_links', false));
+        $this->assignView('async_metadata', $this->container->conf->get('general.enable_async_metadata', true));
+
+        return $response->write($this->render(TemplatePage::ADDLINK));
+    }
+}
diff --git a/application/front/controller/admin/ShaareManageController.php b/application/front/controller/admin/ShaareManageController.php
new file mode 100644
index 00000000..7ceb8d8a
--- /dev/null
+++ b/application/front/controller/admin/ShaareManageController.php
@@ -0,0 +1,202 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Class PostBookmarkController
+ *
+ * Slim controller used to handle Shaarli create or edit bookmarks.
+ */
+class ShaareManageController extends ShaarliAdminController
+{
+    /**
+     * GET /admin/shaare/delete - Delete one or multiple bookmarks (depending on `id` query parameter).
+     */
+    public function deleteBookmark(Request $request, Response $response): Response
+    {
+        $this->checkToken($request);
+
+        $ids = escape(trim($request->getParam('id') ?? ''));
+        if (empty($ids) || strpos($ids, ' ') !== false) {
+            // multiple, space-separated ids provided
+            $ids = array_values(array_filter(preg_split('/\s+/', $ids), 'ctype_digit'));
+        } else {
+            $ids = [$ids];
+        }
+
+        // assert at least one id is given
+        if (0 === count($ids)) {
+            $this->saveErrorMessage(t('Invalid bookmark ID provided.'));
+
+            return $this->redirectFromReferer($request, $response, [], ['delete-shaare']);
+        }
+
+        $formatter = $this->container->formatterFactory->getFormatter('raw');
+        $count = 0;
+        foreach ($ids as $id) {
+            try {
+                $bookmark = $this->container->bookmarkService->get((int) $id);
+            } catch (BookmarkNotFoundException $e) {
+                $this->saveErrorMessage(sprintf(
+                    t('Bookmark with identifier %s could not be found.'),
+                    $id
+                ));
+
+                continue;
+            }
+
+            $data = $formatter->format($bookmark);
+            $this->executePageHooks('delete_link', $data);
+            $this->container->bookmarkService->remove($bookmark, false);
+            ++ $count;
+        }
+
+        if ($count > 0) {
+            $this->container->bookmarkService->save();
+        }
+
+        // If we are called from the bookmarklet, we must close the popup:
+        if ($request->getParam('source') === 'bookmarklet') {
+            return $response->write('<script>self.close();</script>');
+        }
+
+        // Don't redirect to where we were previously because the datastore has changed.
+        return $this->redirect($response, '/');
+    }
+
+    /**
+     * GET /admin/shaare/visibility
+     *
+     * Change visibility (public/private) of one or multiple bookmarks (depending on `id` query parameter).
+     */
+    public function changeVisibility(Request $request, Response $response): Response
+    {
+        $this->checkToken($request);
+
+        $ids = trim(escape($request->getParam('id') ?? ''));
+        if (empty($ids) || strpos($ids, ' ') !== false) {
+            // multiple, space-separated ids provided
+            $ids = array_values(array_filter(preg_split('/\s+/', $ids), 'ctype_digit'));
+        } else {
+            // only a single id provided
+            $ids = [$ids];
+        }
+
+        // assert at least one id is given
+        if (0 === count($ids)) {
+            $this->saveErrorMessage(t('Invalid bookmark ID provided.'));
+
+            return $this->redirectFromReferer($request, $response, [], ['change_visibility']);
+        }
+
+        // assert that the visibility is valid
+        $visibility = $request->getParam('newVisibility');
+        if (null === $visibility || false === in_array($visibility, ['public', 'private'], true)) {
+            $this->saveErrorMessage(t('Invalid visibility provided.'));
+
+            return $this->redirectFromReferer($request, $response, [], ['change_visibility']);
+        } else {
+            $isPrivate = $visibility === 'private';
+        }
+
+        $formatter = $this->container->formatterFactory->getFormatter('raw');
+        $count = 0;
+
+        foreach ($ids as $id) {
+            try {
+                $bookmark = $this->container->bookmarkService->get((int) $id);
+            } catch (BookmarkNotFoundException $e) {
+                $this->saveErrorMessage(sprintf(
+                    t('Bookmark with identifier %s could not be found.'),
+                    $id
+                ));
+
+                continue;
+            }
+
+            $bookmark->setPrivate($isPrivate);
+
+            // To preserve backward compatibility with 3rd parties, plugins still use arrays
+            $data = $formatter->format($bookmark);
+            $this->executePageHooks('save_link', $data);
+            $bookmark->fromArray($data);
+
+            $this->container->bookmarkService->set($bookmark, false);
+            ++$count;
+        }
+
+        if ($count > 0) {
+            $this->container->bookmarkService->save();
+        }
+
+        return $this->redirectFromReferer($request, $response, ['/visibility'], ['change_visibility']);
+    }
+
+    /**
+     * GET /admin/shaare/{id}/pin - Pin or unpin a bookmark.
+     */
+    public function pinBookmark(Request $request, Response $response, array $args): Response
+    {
+        $this->checkToken($request);
+
+        $id = $args['id'] ?? '';
+        try {
+            if (false === ctype_digit($id)) {
+                throw new BookmarkNotFoundException();
+            }
+            $bookmark = $this->container->bookmarkService->get((int) $id);  // Read database
+        } catch (BookmarkNotFoundException $e) {
+            $this->saveErrorMessage(sprintf(
+                t('Bookmark with identifier %s could not be found.'),
+                $id
+            ));
+
+            return $this->redirectFromReferer($request, $response, ['/pin'], ['pin']);
+        }
+
+        $formatter = $this->container->formatterFactory->getFormatter('raw');
+
+        $bookmark->setSticky(!$bookmark->isSticky());
+
+        // To preserve backward compatibility with 3rd parties, plugins still use arrays
+        $data = $formatter->format($bookmark);
+        $this->executePageHooks('save_link', $data);
+        $bookmark->fromArray($data);
+
+        $this->container->bookmarkService->set($bookmark);
+
+        return $this->redirectFromReferer($request, $response, ['/pin'], ['pin']);
+    }
+
+    /**
+     * GET /admin/shaare/private/{hash} - Attach a private key to given bookmark, then redirect to the sharing URL.
+     */
+    public function sharePrivate(Request $request, Response $response, array $args): Response
+    {
+        $this->checkToken($request);
+
+        $hash = $args['hash'] ?? '';
+        $bookmark = $this->container->bookmarkService->findByHash($hash);
+
+        if ($bookmark->isPrivate() !== true) {
+            return $this->redirect($response, '/shaare/' . $hash);
+        }
+
+        if (empty($bookmark->getAdditionalContentEntry('private_key'))) {
+            $privateKey = bin2hex(random_bytes(16));
+            $bookmark->addAdditionalContentEntry('private_key', $privateKey);
+            $this->container->bookmarkService->set($bookmark);
+        }
+
+        return $this->redirect(
+            $response,
+            '/shaare/' . $hash . '?key=' . $bookmark->getAdditionalContentEntry('private_key')
+        );
+    }
+}
diff --git a/application/front/controller/admin/ShaarePublishController.php b/application/front/controller/admin/ShaarePublishController.php
new file mode 100644
index 00000000..18afc2d1
--- /dev/null
+++ b/application/front/controller/admin/ShaarePublishController.php
@@ -0,0 +1,263 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Bookmark\Bookmark;
+use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
+use Shaarli\Formatter\BookmarkFormatter;
+use Shaarli\Formatter\BookmarkMarkdownFormatter;
+use Shaarli\Render\TemplatePage;
+use Shaarli\Thumbnailer;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+class ShaarePublishController extends ShaarliAdminController
+{
+    /**
+     * @var BookmarkFormatter[] Statically cached instances of formatters
+     */
+    protected $formatters = [];
+
+    /**
+     * @var array Statically cached bookmark's tags counts
+     */
+    protected $tags;
+
+    /**
+     * GET /admin/shaare - Displays the bookmark form for creation.
+     *                     Note that if the URL is found in existing bookmarks, then it will be in edit mode.
+     */
+    public function displayCreateForm(Request $request, Response $response): Response
+    {
+        $url = cleanup_url($request->getParam('post'));
+        $link = $this->buildLinkDataFromUrl($request, $url);
+
+        return $this->displayForm($link, $link['linkIsNew'], $request, $response);
+    }
+
+    /**
+     * POST /admin/shaare-batch - Displays multiple creation/edit forms from bulk add in add-link page.
+     */
+    public function displayCreateBatchForms(Request $request, Response $response): Response
+    {
+        $urls = array_map('cleanup_url', explode(PHP_EOL, $request->getParam('urls')));
+
+        $links = [];
+        foreach ($urls as $url) {
+            if (empty($url)) {
+                continue;
+            }
+            $link = $this->buildLinkDataFromUrl($request, $url);
+            $data = $this->buildFormData($link, $link['linkIsNew'], $request);
+            $data['token'] = $this->container->sessionManager->generateToken();
+            $data['source'] = 'batch';
+
+            $this->executePageHooks('render_editlink', $data, TemplatePage::EDIT_LINK);
+
+            $links[] = $data;
+        }
+
+        $this->assignView('links', $links);
+        $this->assignView('batch_mode', true);
+        $this->assignView('async_metadata', $this->container->conf->get('general.enable_async_metadata', true));
+
+        return $response->write($this->render(TemplatePage::EDIT_LINK_BATCH));
+    }
+
+    /**
+     * GET /admin/shaare/{id} - Displays the bookmark form in edition mode.
+     */
+    public function displayEditForm(Request $request, Response $response, array $args): Response
+    {
+        $id = $args['id'] ?? '';
+        try {
+            if (false === ctype_digit($id)) {
+                throw new BookmarkNotFoundException();
+            }
+            $bookmark = $this->container->bookmarkService->get((int) $id);  // Read database
+        } catch (BookmarkNotFoundException $e) {
+            $this->saveErrorMessage(sprintf(
+                t('Bookmark with identifier %s could not be found.'),
+                $id
+            ));
+
+            return $this->redirect($response, '/');
+        }
+
+        $formatter = $this->getFormatter('raw');
+        $link = $formatter->format($bookmark);
+
+        return $this->displayForm($link, false, $request, $response);
+    }
+
+    /**
+     * POST /admin/shaare
+     */
+    public function save(Request $request, Response $response): Response
+    {
+        $this->checkToken($request);
+
+        // lf_id should only be present if the link exists.
+        $id = $request->getParam('lf_id') !== null ? intval(escape($request->getParam('lf_id'))) : null;
+        if (null !== $id && true === $this->container->bookmarkService->exists($id)) {
+            // Edit
+            $bookmark = $this->container->bookmarkService->get($id);
+        } else {
+            // New link
+            $bookmark = new Bookmark();
+        }
+
+        $bookmark->setTitle($request->getParam('lf_title'));
+        $bookmark->setDescription($request->getParam('lf_description'));
+        $bookmark->setUrl($request->getParam('lf_url'), $this->container->conf->get('security.allowed_protocols', []));
+        $bookmark->setPrivate(filter_var($request->getParam('lf_private'), FILTER_VALIDATE_BOOLEAN));
+        $bookmark->setTagsString($request->getParam('lf_tags'));
+
+        if ($this->container->conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE
+            && true !== $this->container->conf->get('general.enable_async_metadata', true)
+            && $bookmark->shouldUpdateThumbnail()
+        ) {
+            $bookmark->setThumbnail($this->container->thumbnailer->get($bookmark->getUrl()));
+        }
+        $this->container->bookmarkService->addOrSet($bookmark, false);
+
+        // To preserve backward compatibility with 3rd parties, plugins still use arrays
+        $formatter = $this->getFormatter('raw');
+        $data = $formatter->format($bookmark);
+        $this->executePageHooks('save_link', $data);
+
+        $bookmark->fromArray($data);
+        $this->container->bookmarkService->set($bookmark);
+
+        // If we are called from the bookmarklet, we must close the popup:
+        if ($request->getParam('source') === 'bookmarklet') {
+            return $response->write('<script>self.close();</script>');
+        } elseif ($request->getParam('source') === 'batch') {
+            return $response;
+        }
+
+        if (!empty($request->getParam('returnurl'))) {
+            $this->container->environment['HTTP_REFERER'] = $request->getParam('returnurl');
+        }
+
+        return $this->redirectFromReferer(
+            $request,
+            $response,
+            ['/admin/add-shaare', '/admin/shaare'], ['addlink', 'post', 'edit_link'],
+            $bookmark->getShortUrl()
+        );
+    }
+
+    /**
+     * Helper function used to display the shaare form whether it's a new or existing bookmark.
+     *
+     * @param array $link data used in template, either from parameters or from the data store
+     */
+    protected function displayForm(array $link, bool $isNew, Request $request, Response $response): Response
+    {
+        $data = $this->buildFormData($link, $isNew, $request);
+
+        $this->executePageHooks('render_editlink', $data, TemplatePage::EDIT_LINK);
+
+        foreach ($data as $key => $value) {
+            $this->assignView($key, $value);
+        }
+
+        $editLabel = false === $isNew ? t('Edit') .' ' : '';
+        $this->assignView(
+            'pagetitle',
+            $editLabel . t('Shaare') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+        );
+
+        return $response->write($this->render(TemplatePage::EDIT_LINK));
+    }
+
+    protected function buildLinkDataFromUrl(Request $request, string $url): array
+    {
+        // Check if URL is not already in database (in this case, we will edit the existing link)
+        $bookmark = $this->container->bookmarkService->findByUrl($url);
+        if (null === $bookmark) {
+            // Get shaare data if it was provided in URL (e.g.: by the bookmarklet).
+            $title = $request->getParam('title');
+            $description = $request->getParam('description');
+            $tags = $request->getParam('tags');
+            if ($request->getParam('private') !== null) {
+                $private = filter_var($request->getParam('private'), FILTER_VALIDATE_BOOLEAN);
+            } else {
+                $private = $this->container->conf->get('privacy.default_private_links', false);
+            }
+
+            // If this is an HTTP(S) link, we try go get the page to extract
+            // the title (otherwise we will to straight to the edit form.)
+            if (true !== $this->container->conf->get('general.enable_async_metadata', true)
+                && empty($title)
+                && strpos(get_url_scheme($url) ?: '', 'http') !== false
+            ) {
+                $metadata = $this->container->metadataRetriever->retrieve($url);
+            }
+
+            if (empty($url)) {
+                $metadata['title'] = $this->container->conf->get('general.default_note_title', t('Note: '));
+            }
+
+            return [
+                'title' => $title ?? $metadata['title'] ?? '',
+                'url' => $url ?? '',
+                'description' => $description ?? $metadata['description'] ?? '',
+                'tags' => $tags ?? $metadata['tags'] ?? '',
+                'private' => $private,
+                'linkIsNew' => true,
+            ];
+        }
+
+        $formatter = $this->getFormatter('raw');
+        $link = $formatter->format($bookmark);
+        $link['linkIsNew'] = false;
+
+        return $link;
+    }
+
+    protected function buildFormData(array $link, bool $isNew, Request $request): array
+    {
+        return escape([
+            'link' => $link,
+            'link_is_new' => $isNew,
+            'http_referer' => $this->container->environment['HTTP_REFERER'] ?? '',
+            'source' => $request->getParam('source') ?? '',
+            'tags' => $this->getTags(),
+            'default_private_links' => $this->container->conf->get('privacy.default_private_links', false),
+            'async_metadata' => $this->container->conf->get('general.enable_async_metadata', true),
+            'retrieve_description' => $this->container->conf->get('general.retrieve_description', false),
+        ]);
+    }
+
+    /**
+     * Memoize formatterFactory->getFormatter() calls.
+     */
+    protected function getFormatter(string $type): BookmarkFormatter
+    {
+        if (!array_key_exists($type, $this->formatters) || $this->formatters[$type] === null) {
+            $this->formatters[$type] = $this->container->formatterFactory->getFormatter($type);
+        }
+
+        return $this->formatters[$type];
+    }
+
+    /**
+     * Memoize bookmarkService->bookmarksCountPerTag() calls.
+     */
+    protected function getTags(): array
+    {
+        if ($this->tags === null) {
+            $this->tags = $this->container->bookmarkService->bookmarksCountPerTag();
+
+            if ($this->container->conf->get('formatter') === 'markdown') {
+                $this->tags[BookmarkMarkdownFormatter::NO_MD_TAG] = 1;
+            }
+        }
+
+        return $this->tags;
+    }
+}
diff --git a/application/front/controller/admin/ShaarliAdminController.php b/application/front/controller/admin/ShaarliAdminController.php
new file mode 100644
index 00000000..c26c9cbe
--- /dev/null
+++ b/application/front/controller/admin/ShaarliAdminController.php
@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Front\Controller\Visitor\ShaarliVisitorController;
+use Shaarli\Front\Exception\WrongTokenException;
+use Shaarli\Security\SessionManager;
+use Slim\Http\Request;
+
+/**
+ * Class ShaarliAdminController
+ *
+ * All admin controllers (for logged in users) MUST extend this abstract class.
+ * It makes sure that the user is properly logged in, and otherwise throw an exception
+ * which will redirect to the login page.
+ *
+ * @package Shaarli\Front\Controller\Admin
+ */
+abstract class ShaarliAdminController extends ShaarliVisitorController
+{
+    /**
+     * Any persistent action to the config or data store must check the XSRF token validity.
+     */
+    protected function checkToken(Request $request): bool
+    {
+        if (!$this->container->sessionManager->checkToken($request->getParam('token'))) {
+            throw new WrongTokenException();
+        }
+
+        return true;
+    }
+
+    /**
+     * Save a SUCCESS message in user session, which will be displayed on any template page.
+     */
+    protected function saveSuccessMessage(string $message): void
+    {
+        $this->saveMessage(SessionManager::KEY_SUCCESS_MESSAGES, $message);
+    }
+
+    /**
+     * Save a WARNING message in user session, which will be displayed on any template page.
+     */
+    protected function saveWarningMessage(string $message): void
+    {
+        $this->saveMessage(SessionManager::KEY_WARNING_MESSAGES, $message);
+    }
+
+    /**
+     * Save an ERROR message in user session, which will be displayed on any template page.
+     */
+    protected function saveErrorMessage(string $message): void
+    {
+        $this->saveMessage(SessionManager::KEY_ERROR_MESSAGES, $message);
+    }
+
+    /**
+     * Use the sessionManager to save the provided message using the proper type.
+     *
+     * @param string $type successed/warnings/errors
+     */
+    protected function saveMessage(string $type, string $message): void
+    {
+        $messages = $this->container->sessionManager->getSessionParameter($type) ?? [];
+        $messages[] = $message;
+
+        $this->container->sessionManager->setSessionParameter($type, $messages);
+    }
+}
diff --git a/application/front/controller/admin/ThumbnailsController.php b/application/front/controller/admin/ThumbnailsController.php
new file mode 100644
index 00000000..4dc09d38
--- /dev/null
+++ b/application/front/controller/admin/ThumbnailsController.php
@@ -0,0 +1,65 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
+use Shaarli\Render\TemplatePage;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Class ToolsController
+ *
+ * Slim controller used to handle thumbnails update.
+ */
+class ThumbnailsController extends ShaarliAdminController
+{
+    /**
+     * GET /admin/thumbnails - Display thumbnails update page
+     */
+    public function index(Request $request, Response $response): Response
+    {
+        $ids = [];
+        foreach ($this->container->bookmarkService->search() as $bookmark) {
+            // A note or not HTTP(S)
+            if ($bookmark->isNote() || !startsWith(strtolower($bookmark->getUrl()), 'http')) {
+                continue;
+            }
+
+            $ids[] = $bookmark->getId();
+        }
+
+        $this->assignView('ids', $ids);
+        $this->assignView(
+            'pagetitle',
+            t('Thumbnails update') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+        );
+
+        return $response->write($this->render(TemplatePage::THUMBNAILS));
+    }
+
+    /**
+     * PATCH /admin/shaare/{id}/thumbnail-update - Route for AJAX calls
+     */
+    public function ajaxUpdate(Request $request, Response $response, array $args): Response
+    {
+        $id = $args['id'] ?? null;
+
+        if (false === ctype_digit($id)) {
+            return $response->withStatus(400);
+        }
+
+        try {
+            $bookmark = $this->container->bookmarkService->get((int) $id);
+        } catch (BookmarkNotFoundException $e) {
+            return $response->withStatus(404);
+        }
+
+        $bookmark->setThumbnail($this->container->thumbnailer->get($bookmark->getUrl()));
+        $this->container->bookmarkService->set($bookmark);
+
+        return $response->withJson($this->container->formatterFactory->getFormatter('raw')->format($bookmark));
+    }
+}
diff --git a/application/front/controller/admin/TokenController.php b/application/front/controller/admin/TokenController.php
new file mode 100644
index 00000000..08d68d0a
--- /dev/null
+++ b/application/front/controller/admin/TokenController.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Class TokenController
+ *
+ * Endpoint used to retrieve a XSRF token. Useful for AJAX requests.
+ */
+class TokenController extends ShaarliAdminController
+{
+    /**
+     * GET /admin/token
+     */
+    public function getToken(Request $request, Response $response): Response
+    {
+        $response = $response->withHeader('Content-Type', 'text/plain');
+
+        return $response->write($this->container->sessionManager->generateToken());
+    }
+}
diff --git a/application/front/controller/admin/ToolsController.php b/application/front/controller/admin/ToolsController.php
new file mode 100644
index 00000000..a87f20d2
--- /dev/null
+++ b/application/front/controller/admin/ToolsController.php
@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Admin;
+
+use Shaarli\Render\TemplatePage;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Class ToolsController
+ *
+ * Slim controller used to display the tools page.
+ */
+class ToolsController extends ShaarliAdminController
+{
+    public function index(Request $request, Response $response): Response
+    {
+        $data = [
+            'pageabsaddr' => index_url($this->container->environment),
+            'sslenabled' => is_https($this->container->environment),
+        ];
+
+        $this->executePageHooks('render_tools', $data, TemplatePage::TOOLS);
+
+        foreach ($data as $key => $value) {
+            $this->assignView($key, $value);
+        }
+
+        $this->assignView('pagetitle', t('Tools') .' - '. $this->container->conf->get('general.title', 'Shaarli'));
+
+        return $response->write($this->render(TemplatePage::TOOLS));
+    }
+}