15 files changed, 694 insertions, 388 deletions
diff --git a/application/front/controller/admin/ConfigureController.php b/application/front/controller/admin/ConfigureController.php
index 0ed7ad81..dc421661 100644
--- a/application/front/controller/admin/ConfigureController.php
+++ b/application/front/controller/admin/ConfigureController.php
@@ -51,7 +51,10 @@ class ConfigureController extends ShaarliAdminController
        $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'));
+        $this->assignView(
+            'pagetitle',
+            t('Configure') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
+        );
        return $response->write($this->render(TemplatePage::CONFIGURE));
    }
@@ -95,12 +98,15 @@ class ConfigureController extends ShaarliAdminController
        }
        $thumbnailsMode = extension_loaded('gd') ? $request->getParam('enableThumbnails') : Thumbnailer::MODE_NONE;
-        if ($thumbnailsMode !== 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>'
+                '<a href="' . $this->container->basePath . '/admin/thumbnails">' .
+                    t('Please synchronize them.') .
+                '</a>'
            );
        }
        $this->container->conf->set('thumbnails.mode', $thumbnailsMode);
diff --git a/application/front/controller/admin/ExportController.php b/application/front/controller/admin/ExportController.php
index 2be957fa..f01d7e9b 100644
--- a/application/front/controller/admin/ExportController.php
+++ b/application/front/controller/admin/ExportController.php
@@ -23,7 +23,7 @@ class ExportController extends ShaarliAdminController
     */
    public function index(Request $request, Response $response): Response
    {
-        $this->assignView('pagetitle', t('Export') .' - '. $this->container->conf->get('general.title', 'Shaarli'));
+        $this->assignView('pagetitle', t('Export') . ' - ' . $this->container->conf->get('general.title', 'Shaarli'));
        return $response->write($this->render(TemplatePage::EXPORT));
    }
@@ -68,7 +68,7 @@ class ExportController extends ShaarliAdminController
        $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'
+            'attachment; filename=bookmarks_' . $selection . '_' . $now->format(Bookmark::LINK_DATE_FORMAT) . '.html'
        );
        $this->assignView('date', $now->format(DateTime::RFC822));
diff --git a/application/front/controller/admin/ImportController.php b/application/front/controller/admin/ImportController.php
index 758d5ef9..c2ad6a09 100644
--- a/application/front/controller/admin/ImportController.php
+++ b/application/front/controller/admin/ImportController.php
@@ -38,7 +38,7 @@ class ImportController extends ShaarliAdminController
                true
            )
        );
-        $this->assignView('pagetitle', t('Import') .' - '. $this->container->conf->get('general.title', 'Shaarli'));
+        $this->assignView('pagetitle', t('Import') . ' - ' . $this->container->conf->get('general.title', 'Shaarli'));
        return $response->write($this->render(TemplatePage::IMPORT));
    }
@@ -64,7 +64,7 @@ class ImportController extends ShaarliAdminController
            $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.'
+                    . ' (%s). Please upload in smaller chunks.'
                ),
                get_max_upload_size(ini_get('post_max_size'), ini_get('upload_max_filesize'))
            );
diff --git a/application/front/controller/admin/ManageShaareController.php b/application/front/controller/admin/ManageShaareController.php
deleted file mode 100644
index bb083486..00000000
--- a/application/front/controller/admin/ManageShaareController.php
+++ /dev/null
@@ -1,371 +0,0 @@
-<?php
-declare(strict_types=1);
-namespace Shaarli\Front\Controller\Admin;
-use Shaarli\Bookmark\Bookmark;
-use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
-use Shaarli\Formatter\BookmarkMarkdownFormatter;
-use Shaarli\Render\TemplatePage;
-use Shaarli\Thumbnailer;
-use Slim\Http\Request;
-use Slim\Http\Response;
-/**
- * Class PostBookmarkController
- *
- * Slim controller used to handle Shaarli create or edit bookmarks.
- */
-class ManageShaareController 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
-    {
-        $this->assignView(
-            'pagetitle',
-            t('Shaare a new link') .' - '. $this->container->conf->get('general.title', 'Shaarli')
-        );
-        return $response->write($this->render(TemplatePage::ADDLINK));
-    }
-    /**
-     * 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'));
-        $linkIsNew = false;
-        // 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) {
-            $linkIsNew = true;
-            // 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');
-            $private = filter_var($request->getParam('private'), FILTER_VALIDATE_BOOLEAN);
-            // 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 (empty($title) && strpos(get_url_scheme($url) ?: '', 'http') !== false) {
-                $retrieveDescription = $this->container->conf->get('general.retrieve_description');
-                // Short timeout to keep the application responsive
-                // The callback will fill $charset and $title with data from the downloaded page.
-                $this->container->httpAccess->getHttpResponse(
-                    $url,
-                    $this->container->conf->get('general.download_timeout', 30),
-                    $this->container->conf->get('general.download_max_size', 4194304),
-                    $this->container->httpAccess->getCurlDownloadCallback(
-                        $charset,
-                        $title,
-                        $description,
-                        $tags,
-                        $retrieveDescription
-                    )
-                );
-                if (! empty($title) && strtolower($charset) !== 'utf-8' && mb_check_encoding($charset)) {
-                    $title = mb_convert_encoding($title, 'utf-8', $charset);
-                }
-            }
-            if (empty($url) && empty($title)) {
-                $title = $this->container->conf->get('general.default_note_title', t('Note: '));
-            }
-            $link = [
-                'title' => $title,
-                'url' => $url ?? '',
-                'description' => $description ?? '',
-                'tags' => $tags ?? '',
-                'private' => $private,
-            ];
-        } else {
-            $formatter = $this->container->formatterFactory->getFormatter('raw');
-            $link = $formatter->format($bookmark);
-        }
-        return $this->displayForm($link, $linkIsNew, $request, $response);
-    }
-    /**
-     * 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->container->formatterFactory->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
-            && false === $bookmark->isNote()
-        ) {
-            $bookmark->setThumbnail($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->container->formatterFactory->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 $response->write('<script>self.close();</script>');
-        }
-        if (!empty($request->getParam('returnurl'))) {
-            $this->container->environment['HTTP_REFERER'] = escape($request->getParam('returnurl'));
-        }
-        return $this->redirectFromReferer(
-            $request,
-            $response,
-            ['/admin/add-shaare', '/admin/shaare'], ['addlink', 'post', 'edit_link'],
-            $bookmark->getShortUrl()
-        );
-    }
-    /**
-     * 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']);
-    }
-    /**
-     * 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
-    {
-        $tags = $this->container->bookmarkService->bookmarksCountPerTag();
-        if ($this->container->conf->get('formatter') === 'markdown') {
-            $tags[BookmarkMarkdownFormatter::NO_MD_TAG] = 1;
-        }
-        $data = escape([
-            'link' => $link,
-            'link_is_new' => $isNew,
-            'http_referer' => $this->container->environment['HTTP_REFERER'] ?? '',
-            'source' => $request->getParam('source') ?? '',
-            'tags' => $tags,
-            'default_private_links' => $this->container->conf->get('privacy.default_private_links', false),
-        ]);
-        $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));
-    }
-}
diff --git a/application/front/controller/admin/ManageTagController.php b/application/front/controller/admin/ManageTagController.php
index 2065c3e2..8675a0c5 100644
--- a/application/front/controller/admin/ManageTagController.php
+++ b/application/front/controller/admin/ManageTagController.php
@@ -24,9 +24,15 @@ class ManageTagController extends ShaarliAdminController
        $fromTag = $request->getParam('fromtag') ?? '';
        $this->assignView('fromtag', escape($fromTag));
+        $separator = escape($this->container->conf->get('general.tags_separator', ' '));
+        if ($separator === ' ') {
+            $separator = '&nbsp;';
+            $this->assignView('tags_separator_desc', t('whitespace'));
+        }
+        $this->assignView('tags_separator', $separator);
        $this->assignView(
            'pagetitle',
-            t('Manage tags') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            t('Manage tags') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
        );
        return $response->write($this->render(TemplatePage::CHANGE_TAG));
@@ -81,8 +87,35 @@ class ManageTagController extends ShaarliAdminController
        $this->saveSuccessMessage($alert);
-        $redirect = true === $isDelete ? '/admin/tags' : '/?searchtags='. urlencode($toTag);
+        $redirect = true === $isDelete ? '/admin/tags' : '/?searchtags=' . urlencode($toTag);
        return $this->redirect($response, $redirect);
    }
+    /**
+     * POST /admin/tags/change-separator - Change tag separator
+     */
+    public function changeSeparator(Request $request, Response $response): Response
+    {
+        $this->checkToken($request);
+        $reservedCharacters = ['-', '.', '*'];
+        $newSeparator = $request->getParam('separator');
+        if ($newSeparator === null || mb_strlen($newSeparator) !== 1) {
+            $this->saveErrorMessage(t('Tags separator must be a single character.'));
+        } elseif (in_array($newSeparator, $reservedCharacters, true)) {
+            $reservedCharacters = implode(' ', array_map(function (string $character) {
+                return '<code>' . $character . '</code>';
+            }, $reservedCharacters));
+            $this->saveErrorMessage(
+                t('These characters are reserved and can\'t be used as tags separator: ') . $reservedCharacters
+            );
+        } else {
+            $this->container->conf->set('general.tags_separator', $newSeparator, true, true);
+            $this->saveSuccessMessage('Your tags separator setting has been updated!');
+        }
+        return $this->redirect($response, '/admin/tags');
+    }
 }
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
index 5ec0d24b..4aaf1f82 100644
--- a/application/front/controller/admin/PasswordController.php
+++ b/application/front/controller/admin/PasswordController.php
@@ -25,7 +25,7 @@ class PasswordController extends ShaarliAdminController
        $this->assignView(
            'pagetitle',
-            t('Change password') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            t('Change password') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
        );
    }
@@ -78,7 +78,7 @@ class PasswordController extends ShaarliAdminController
        // 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.salt', sha1(uniqid('', true) . '_' . mt_rand()));
        $this->container->conf->set(
            'credentials.hash',
            sha1(
diff --git a/application/front/controller/admin/PluginsController.php b/application/front/controller/admin/PluginsController.php
index 8e059681..ae47c1af 100644
--- a/application/front/controller/admin/PluginsController.php
+++ b/application/front/controller/admin/PluginsController.php
@@ -42,7 +42,7 @@ class PluginsController extends ShaarliAdminController
        $this->assignView('disabledPlugins', $disabledPlugins);
        $this->assignView(
            'pagetitle',
-            t('Plugin Administration') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            t('Plugin Administration') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
        );
        return $response->write($this->render(TemplatePage::PLUGINS_ADMIN));
@@ -64,7 +64,7 @@ class PluginsController extends ShaarliAdminController
                unset($parameters['parameters_form']);
                unset($parameters['token']);
                foreach ($parameters as $param => $value) {
-                    $this->container->conf->set('plugins.'. $param, escape($value));
+                    $this->container->conf->set('plugins.' . $param, escape($value));
                }
            } else {
                $this->container->conf->set('general.enabled_plugins', save_plugin_config($parameters));
diff --git a/application/front/controller/admin/ServerController.php b/application/front/controller/admin/ServerController.php
new file mode 100644
index 00000000..4b74f4a9
--- /dev/null
+++ b/application/front/controller/admin/ServerController.php
@@ -0,0 +1,101 @@
+<?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
+    {
+        $releaseUrl = ApplicationUtils::$GITHUB_URL . '/releases/';
+        if ($this->container->conf->get('updates.check_updates', true)) {
+            $latestVersion = 'v' . ApplicationUtils::getVersion(
+                ApplicationUtils::$GIT_RAW_URL . '/latest/' . ApplicationUtils::$VERSION_FILE
+            );
+            $releaseUrl .= 'tag/' . $latestVersion;
+        } else {
+            $latestVersion = t('Check disabled');
+        }
+        $currentVersion = ApplicationUtils::getVersion('./shaarli_version.php');
+        $currentVersion = $currentVersion === 'dev' ? $currentVersion : 'v' . $currentVersion;
+        $phpEol = new \DateTimeImmutable(ApplicationUtils::getPhpEol(PHP_VERSION));
+        $permissions = array_merge(
+            ApplicationUtils::checkResourcePermissions($this->container->conf),
+            ApplicationUtils::checkDatastoreMutex()
+        );
+        $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', $permissions);
+        $this->assignView('release_url', $releaseUrl);
+        $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
index d9a7a2e0..0917b6d2 100644
--- a/application/front/controller/admin/SessionFilterController.php
+++ b/application/front/controller/admin/SessionFilterController.php
@@ -45,6 +45,4 @@ class SessionFilterController extends ShaarliAdminController
        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..ab8e7f40
--- /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..35837baa
--- /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 permalink after deletion.
+        return $this->redirectFromReferer($request, $response, ['shaare/']);
+    }
+    /**
+     * 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->conf->get('general.tags_separator', ' '));
+            $this->container->bookmarkService->set($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->conf->get('general.tags_separator', ' '));
+        $this->container->bookmarkService->set($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..fb9cacc2
--- /dev/null
+++ b/application/front/controller/admin/ShaarePublishController.php
@@ -0,0 +1,274 @@
+<?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'),
+            $this->container->conf->get('general.tags_separator', ' ')
+        );
+        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->conf->get('general.tags_separator', ' '));
+        $this->container->bookmarkService->set($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
+    {
+        $link['tags'] = $link['tags'] !== null && strlen($link['tags']) > 0
+            ? $link['tags'] . $this->container->conf->get('general.tags_separator', ' ')
+            : $link['tags']
+        ;
+        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/ThumbnailsController.php b/application/front/controller/admin/ThumbnailsController.php
index 4dc09d38..94d97d4b 100644
--- a/application/front/controller/admin/ThumbnailsController.php
+++ b/application/front/controller/admin/ThumbnailsController.php
@@ -34,7 +34,7 @@ class ThumbnailsController extends ShaarliAdminController
        $this->assignView('ids', $ids);
        $this->assignView(
            'pagetitle',
-            t('Thumbnails update') .' - '. $this->container->conf->get('general.title', 'Shaarli')
+            t('Thumbnails update') . ' - ' . $this->container->conf->get('general.title', 'Shaarli')
        );
        return $response->write($this->render(TemplatePage::THUMBNAILS));
diff --git a/application/front/controller/admin/ToolsController.php b/application/front/controller/admin/ToolsController.php
index a87f20d2..560e5e3e 100644
--- a/application/front/controller/admin/ToolsController.php
+++ b/application/front/controller/admin/ToolsController.php
@@ -28,7 +28,7 @@ class ToolsController extends ShaarliAdminController
            $this->assignView($key, $value);
        }
-        $this->assignView('pagetitle', t('Tools') .' - '. $this->container->conf->get('general.title', 'Shaarli'));
+        $this->assignView('pagetitle', t('Tools') . ' - ' . $this->container->conf->get('general.title', 'Shaarli'));
        return $response->write($this->render(TemplatePage::TOOLS));
    }