14 files changed, 340 insertions, 33 deletions

diff --git a/application/bookmark/BookmarkFileService.php b/application/bookmark/BookmarkFileService.php
index 3d15d4c9..6e04f3b7 100644
--- a/application/bookmark/BookmarkFileService.php
+++ b/application/bookmark/BookmarkFileService.php
@@ -46,6 +46,9 @@ class BookmarkFileService implements BookmarkServiceInterface
     /** @var bool true for logged in users. Default value to retrieve private bookmarks. */
     protected $isLoggedIn;
 
+    /** @var bool Allow datastore alteration from not logged in users. */
+    protected $anonymousPermission = false;
+
     /**
      * @inheritDoc
      */
@@ -64,7 +67,7 @@ class BookmarkFileService implements BookmarkServiceInterface
                 $this->bookmarks = $this->bookmarksIO->read();
             } catch (EmptyDataStoreException $e) {
                 $this->bookmarks = new BookmarkArray();
-                if ($isLoggedIn) {
+                if ($this->isLoggedIn) {
                     $this->save();
                 }
             }
@@ -154,7 +157,7 @@ class BookmarkFileService implements BookmarkServiceInterface
      */
     public function set($bookmark, $save = true)
     {
-        if ($this->isLoggedIn !== true) {
+        if (true !== $this->isLoggedIn && true !== $this->anonymousPermission) {
             throw new Exception(t('You\'re not authorized to alter the datastore'));
         }
         if (! $bookmark instanceof Bookmark) {
@@ -179,7 +182,7 @@ class BookmarkFileService implements BookmarkServiceInterface
      */
     public function add($bookmark, $save = true)
     {
-        if ($this->isLoggedIn !== true) {
+        if (true !== $this->isLoggedIn && true !== $this->anonymousPermission) {
             throw new Exception(t('You\'re not authorized to alter the datastore'));
         }
         if (! $bookmark instanceof Bookmark) {
@@ -204,7 +207,7 @@ class BookmarkFileService implements BookmarkServiceInterface
      */
     public function addOrSet($bookmark, $save = true)
     {
-        if ($this->isLoggedIn !== true) {
+        if (true !== $this->isLoggedIn && true !== $this->anonymousPermission) {
             throw new Exception(t('You\'re not authorized to alter the datastore'));
         }
         if (! $bookmark instanceof Bookmark) {
@@ -221,7 +224,7 @@ class BookmarkFileService implements BookmarkServiceInterface
      */
     public function remove($bookmark, $save = true)
     {
-        if ($this->isLoggedIn !== true) {
+        if (true !== $this->isLoggedIn && true !== $this->anonymousPermission) {
             throw new Exception(t('You\'re not authorized to alter the datastore'));
         }
         if (! $bookmark instanceof Bookmark) {
@@ -274,10 +277,11 @@ class BookmarkFileService implements BookmarkServiceInterface
      */
     public function save()
     {
-        if (!$this->isLoggedIn) {
+        if (true !== $this->isLoggedIn && true !== $this->anonymousPermission) {
             // TODO: raise an Exception instead
             die('You are not authorized to change the database.');
         }
+
         $this->bookmarks->reorder();
         $this->bookmarksIO->write($this->bookmarks);
         $this->pageCacheManager->invalidateCaches();
@@ -357,6 +361,16 @@ class BookmarkFileService implements BookmarkServiceInterface
         $initializer->initialize();
     }
 
+    public function enableAnonymousPermission(): void
+    {
+        $this->anonymousPermission = true;
+    }
+
+    public function disableAnonymousPermission(): void
+    {
+        $this->anonymousPermission = false;
+    }
+
     /**
      * Handles migration to the new database format (BookmarksArray).
      */
diff --git a/application/bookmark/BookmarkInitializer.php b/application/bookmark/BookmarkInitializer.php
index 9eee9a35..479ee9a9 100644
--- a/application/bookmark/BookmarkInitializer.php
+++ b/application/bookmark/BookmarkInitializer.php
@@ -34,13 +34,15 @@ class BookmarkInitializer
      */
     public function initialize()
     {
+        $this->bookmarkService->enableAnonymousPermission();
+
         $bookmark = new Bookmark();
         $bookmark->setTitle(t('My secret stuff... - Pastebin.com'));
-        $bookmark->setUrl('http://sebsauvage.net/paste/?8434b27936c09649#bR7XsXhoTiLcqCpQbmOpBi3rq2zzQUC5hBI7ZT1O3x8=', []);
+        $bookmark->setUrl('http://sebsauvage.net/paste/?8434b27936c09649#bR7XsXhoTiLcqCpQbmOpBi3rq2zzQUC5hBI7ZT1O3x8=');
         $bookmark->setDescription(t('Shhhh! I\'m a private link only YOU can see. You can delete me too.'));
         $bookmark->setTagsString('secretstuff');
         $bookmark->setPrivate(true);
-        $this->bookmarkService->add($bookmark);
+        $this->bookmarkService->add($bookmark, false);
 
         $bookmark = new Bookmark();
         $bookmark->setTitle(t('The personal, minimalist, super-fast, database free, bookmarking service'));
@@ -54,6 +56,10 @@ To learn how to use Shaarli, consult the link "Documentation" at the bottom of t
 You use the community supported version of the original Shaarli project, by Sebastien Sauvage.'
         ));
         $bookmark->setTagsString('opensource software');
-        $this->bookmarkService->add($bookmark);
+        $this->bookmarkService->add($bookmark, false);
+
+        $this->bookmarkService->save();
+
+        $this->bookmarkService->disableAnonymousPermission();
     }
 }
diff --git a/application/bookmark/BookmarkServiceInterface.php b/application/bookmark/BookmarkServiceInterface.php
index 7b7a4f09..37fbda89 100644
--- a/application/bookmark/BookmarkServiceInterface.php
+++ b/application/bookmark/BookmarkServiceInterface.php
@@ -177,4 +177,17 @@ interface BookmarkServiceInterface
      * Creates the default database after a fresh install.
      */
     public function initialize();
+
+    /**
+     * Allow to write the datastore from anonymous session (not logged in).
+     *
+     * This covers a few specific use cases, such as datastore initialization,
+     * but it should be used carefully as it can lead to security issues.
+     */
+    public function enableAnonymousPermission();
+
+    /**
+     * Disable anonymous permission.
+     */
+    public function disableAnonymousPermission();
 }
diff --git a/application/container/ContainerBuilder.php b/application/container/ContainerBuilder.php
index ccb87c3a..593aafb7 100644
--- a/application/container/ContainerBuilder.php
+++ b/application/container/ContainerBuilder.php
@@ -15,6 +15,7 @@ use Shaarli\Netscape\NetscapeBookmarkUtils;
 use Shaarli\Plugin\PluginManager;
 use Shaarli\Render\PageBuilder;
 use Shaarli\Render\PageCacheManager;
+use Shaarli\Security\CookieManager;
 use Shaarli\Security\LoginManager;
 use Shaarli\Security\SessionManager;
 use Shaarli\Thumbnailer;
@@ -38,6 +39,9 @@ class ContainerBuilder
     /** @var SessionManager */
     protected $session;
 
+    /** @var CookieManager */
+    protected $cookieManager;
+
     /** @var LoginManager */
     protected $login;
 
@@ -47,11 +51,13 @@ class ContainerBuilder
     public function __construct(
         ConfigManager $conf,
         SessionManager $session,
+        CookieManager $cookieManager,
         LoginManager $login
     ) {
         $this->conf = $conf;
         $this->session = $session;
         $this->login = $login;
+        $this->cookieManager = $cookieManager;
     }
 
     public function build(): ShaarliContainer
@@ -60,6 +66,7 @@ class ContainerBuilder
 
         $container['conf'] = $this->conf;
         $container['sessionManager'] = $this->session;
+        $container['cookieManager'] = $this->cookieManager;
         $container['loginManager'] = $this->login;
         $container['basePath'] = $this->basePath;
 
diff --git a/application/container/ShaarliContainer.php b/application/container/ShaarliContainer.php
index 09e7d5b1..c4fe753e 100644
--- a/application/container/ShaarliContainer.php
+++ b/application/container/ShaarliContainer.php
@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace Shaarli\Container;
 
+use http\Cookie;
 use Shaarli\Bookmark\BookmarkServiceInterface;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Feed\FeedBuilder;
@@ -14,6 +15,7 @@ use Shaarli\Netscape\NetscapeBookmarkUtils;
 use Shaarli\Plugin\PluginManager;
 use Shaarli\Render\PageBuilder;
 use Shaarli\Render\PageCacheManager;
+use Shaarli\Security\CookieManager;
 use Shaarli\Security\LoginManager;
 use Shaarli\Security\SessionManager;
 use Shaarli\Thumbnailer;
@@ -25,6 +27,7 @@ use Slim\Container;
  *
  * @property string                   $basePath             Shaarli's instance base path (e.g. `/shaarli/`)
  * @property BookmarkServiceInterface $bookmarkService
+ * @property CookieManager            $cookieManager
  * @property ConfigManager            $conf
  * @property mixed[]                  $environment          $_SERVER automatically injected by Slim
  * @property callable                 $errorHandler         Overrides default Slim error display
diff --git a/application/front/ShaarliMiddleware.php b/application/front/ShaarliMiddleware.php
index baea6ef2..595182ac 100644
--- a/application/front/ShaarliMiddleware.php
+++ b/application/front/ShaarliMiddleware.php
@@ -43,6 +43,12 @@ class ShaarliMiddleware
         $this->container->basePath = rtrim($request->getUri()->getBasePath(), '/');
 
         try {
+            if (!is_file($this->container->conf->getConfigFileExt())
+                && !in_array($next->getName(), ['displayInstall', 'saveInstall'], true)
+            ) {
+                return $response->withRedirect($this->container->basePath . '/install');
+            }
+
             $this->runUpdates();
             $this->checkOpenShaarli($request, $response, $next);
 
diff --git a/application/front/controller/admin/LogoutController.php b/application/front/controller/admin/LogoutController.php
index c5984814..28165129 100644
--- a/application/front/controller/admin/LogoutController.php
+++ b/application/front/controller/admin/LogoutController.php
@@ -4,6 +4,7 @@ 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;
@@ -20,9 +21,12 @@ class LogoutController extends ShaarliAdminController
     {
         $this->container->pageCacheManager->invalidateCaches();
         $this->container->sessionManager->logout();
-
-        // TODO: switch to a simple Cookie manager allowing to check the session, and create mocks.
-        setcookie(LoginManager::$STAY_SIGNED_IN_COOKIE, 'false', 0, $this->container->basePath . '/');
+        $this->container->cookieManager->setCookieParameter(
+            CookieManager::STAY_SIGNED_IN,
+            'false',
+            0,
+            $this->container->basePath . '/'
+        );
 
         return $this->redirect($response, '/');
     }
diff --git a/application/front/controller/visitor/InstallController.php b/application/front/controller/visitor/InstallController.php
new file mode 100644
index 00000000..aa032860
--- /dev/null
+++ b/application/front/controller/visitor/InstallController.php
@@ -0,0 +1,173 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Controller\Visitor;
+
+use Shaarli\ApplicationUtils;
+use Shaarli\Bookmark\BookmarkFilter;
+use Shaarli\Container\ShaarliContainer;
+use Shaarli\Front\Exception\AlreadyInstalledException;
+use Shaarli\Front\Exception\ResourcePermissionException;
+use Shaarli\Languages;
+use Shaarli\Security\SessionManager;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Slim controller used to render install page, and create initial configuration file.
+ */
+class InstallController extends ShaarliVisitorController
+{
+    public const SESSION_TEST_KEY = 'session_tested';
+    public const SESSION_TEST_VALUE = 'Working';
+
+    public function __construct(ShaarliContainer $container)
+    {
+        parent::__construct($container);
+
+        if (is_file($this->container->conf->getConfigFileExt())) {
+            throw new AlreadyInstalledException();
+        }
+    }
+
+    /**
+     * Display the install template page.
+     * Also test file permissions and sessions beforehand.
+     */
+    public function index(Request $request, Response $response): Response
+    {
+        // Before installation, we'll make sure that permissions are set properly, and sessions are working.
+        $this->checkPermissions();
+
+        if (static::SESSION_TEST_VALUE
+            !== $this->container->sessionManager->getSessionParameter(static::SESSION_TEST_KEY)
+        ) {
+            $this->container->sessionManager->setSessionParameter(static::SESSION_TEST_KEY, static::SESSION_TEST_VALUE);
+
+            return $this->redirect($response, '/install/session-test');
+        }
+
+        [$continents, $cities] = generateTimeZoneData(timezone_identifiers_list(), date_default_timezone_get());
+
+        $this->assignView('continents', $continents);
+        $this->assignView('cities', $cities);
+        $this->assignView('languages', Languages::getAvailableLanguages());
+
+        return $response->write($this->render('install'));
+    }
+
+    /**
+     * Route checking that the session parameter has been properly saved between two distinct requests.
+     * If the session parameter is preserved, redirect to install template page, otherwise displays error.
+     */
+    public function sessionTest(Request $request, Response $response): Response
+    {
+        // This part makes sure sessions works correctly.
+        // (Because on some hosts, session.save_path may not be set correctly,
+        // or we may not have write access to it.)
+        if (static::SESSION_TEST_VALUE
+            !== $this->container->sessionManager->getSessionParameter(static::SESSION_TEST_KEY)
+        ) {
+            // Step 2: Check if data in session is correct.
+            $msg = t(
+                '<pre>Sessions do not seem to work correctly on your server.<br>'.
+                'Make sure the variable "session.save_path" is set correctly in your PHP config, '.
+                'and that you have write access to it.<br>'.
+                'It currently points to %s.<br>'.
+                'On some browsers, accessing your server via a hostname like \'localhost\' '.
+                'or any custom hostname without a dot causes cookie storage to fail. '.
+                'We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>'
+            );
+            $msg = sprintf($msg, $this->container->sessionManager->getSavePath());
+
+            $this->assignView('message', $msg);
+
+            return $response->write($this->render('error'));
+        }
+
+        return $this->redirect($response, '/install');
+    }
+
+    /**
+     * Save installation form and initialize config file and datastore if necessary.
+     */
+    public function save(Request $request, Response $response): Response
+    {
+        $timezone = 'UTC';
+        if (!empty($request->getParam('continent'))
+            && !empty($request->getParam('city'))
+            && isTimeZoneValid($request->getParam('continent'), $request->getParam('city'))
+        ) {
+            $timezone = $request->getParam('continent') . '/' . $request->getParam('city');
+        }
+        $this->container->conf->set('general.timezone', $timezone);
+
+        $login = $request->getParam('setlogin');
+        $this->container->conf->set('credentials.login', $login);
+        $salt = sha1(uniqid('', true) .'_'. mt_rand());
+        $this->container->conf->set('credentials.salt', $salt);
+        $this->container->conf->set('credentials.hash', sha1($request->getParam('setpassword') . $login . $salt));
+
+        if (!empty($request->getParam('title'))) {
+            $this->container->conf->set('general.title', escape($request->getParam('title')));
+        } else {
+            $this->container->conf->set(
+                'general.title',
+                'Shared bookmarks on '.escape(index_url($this->container->environment))
+            );
+        }
+
+        $this->container->conf->set('translation.language', escape($request->getParam('language')));
+        $this->container->conf->set('updates.check_updates', !empty($request->getParam('updateCheck')));
+        $this->container->conf->set('api.enabled', !empty($request->getParam('enableApi')));
+        $this->container->conf->set(
+            'api.secret',
+            generate_api_secret(
+                $this->container->conf->get('credentials.login'),
+                $this->container->conf->get('credentials.salt')
+            )
+        );
+
+        try {
+            // Everything is ok, let's create config file.
+            $this->container->conf->write($this->container->loginManager->isLoggedIn());
+        } catch (\Exception $e) {
+            $this->assignView('message', $e->getMessage());
+            $this->assignView('stacktrace', $e->getTraceAsString());
+
+            return $response->write($this->render('error'));
+        }
+
+        if ($this->container->bookmarkService->count(BookmarkFilter::$ALL) === 0) {
+            $this->container->bookmarkService->initialize();
+        }
+
+        $this->container->sessionManager->setSessionParameter(
+            SessionManager::KEY_SUCCESS_MESSAGES,
+            [t('Shaarli is now configured. Please login and start shaaring your bookmarks!')]
+        );
+
+        return $this->redirect($response, '/');
+    }
+
+    protected function checkPermissions(): bool
+    {
+        // Ensure Shaarli has proper access to its resources
+        $errors = ApplicationUtils::checkResourcePermissions($this->container->conf);
+
+        if (empty($errors)) {
+            return true;
+        }
+
+        // FIXME! Do not insert HTML here.
+        $message = '<p>'. t('Insufficient permissions:') .'</p><ul>';
+
+        foreach ($errors as $error) {
+            $message .= '<li>'.$error.'</li>';
+        }
+        $message .= '</ul>';
+
+        throw new ResourcePermissionException($message);
+    }
+}
diff --git a/application/front/exceptions/AlreadyInstalledException.php b/application/front/exceptions/AlreadyInstalledException.php
new file mode 100644
index 00000000..4add86cf
--- /dev/null
+++ b/application/front/exceptions/AlreadyInstalledException.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Exception;
+
+class AlreadyInstalledException extends ShaarliFrontException
+{
+    public function __construct()
+    {
+        $message = t('Shaarli has already been installed. Login to edit the configuration.');
+
+        parent::__construct($message, 401);
+    }
+}
diff --git a/application/front/exceptions/ResourcePermissionException.php b/application/front/exceptions/ResourcePermissionException.php
new file mode 100644
index 00000000..8fbf03b9
--- /dev/null
+++ b/application/front/exceptions/ResourcePermissionException.php
@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Front\Exception;
+
+class ResourcePermissionException extends ShaarliFrontException
+{
+    public function __construct(string $message)
+    {
+        parent::__construct($message, 500);
+    }
+}
diff --git a/application/security/CookieManager.php b/application/security/CookieManager.php
new file mode 100644
index 00000000..cde4746e
--- /dev/null
+++ b/application/security/CookieManager.php
@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli\Security;
+
+class CookieManager
+{
+    /** @var string Name of the cookie set after logging in **/
+    public const STAY_SIGNED_IN = 'shaarli_staySignedIn';
+
+    /** @var mixed $_COOKIE set by reference */
+    protected $cookies;
+
+    public function __construct(array &$cookies)
+    {
+        $this->cookies = $cookies;
+    }
+
+    public function setCookieParameter(string $key, string $value, int $expires, string $path): self
+    {
+        $this->cookies[$key] = $value;
+
+        setcookie($key, $value, $expires, $path);
+
+        return $this;
+    }
+
+    public function getCookieParameter(string $key, string $default = null): ?string
+    {
+        return $this->cookies[$key] ?? $default;
+    }
+}
diff --git a/application/security/LoginManager.php b/application/security/LoginManager.php
index 39ec9b2e..d74c3118 100644
--- a/application/security/LoginManager.php
+++ b/application/security/LoginManager.php
@@ -9,9 +9,6 @@ use Shaarli\Config\ConfigManager;
  */
 class LoginManager
 {
-    /** @var string Name of the cookie set after logging in **/
-    public static $STAY_SIGNED_IN_COOKIE = 'shaarli_staySignedIn';
-
     /** @var array A reference to the $_GLOBALS array */
     protected $globals = [];
 
@@ -32,17 +29,21 @@ class LoginManager
 
     /** @var string User sign-in token depending on remote IP and credentials */
     protected $staySignedInToken = '';
+    /** @var CookieManager */
+    protected $cookieManager;
 
     /**
      * Constructor
      *
      * @param ConfigManager  $configManager  Configuration Manager instance
      * @param SessionManager $sessionManager SessionManager instance
+     * @param CookieManager  $cookieManager  CookieManager instance
      */
-    public function __construct($configManager, $sessionManager)
+    public function __construct($configManager, $sessionManager, $cookieManager)
     {
         $this->configManager = $configManager;
         $this->sessionManager = $sessionManager;
+        $this->cookieManager = $cookieManager;
         $this->banManager = new BanManager(
             $this->configManager->get('security.trusted_proxies', []),
             $this->configManager->get('security.ban_after'),
@@ -86,10 +87,9 @@ class LoginManager
     /**
      * Check user session state and validity (expiration)
      *
-     * @param array  $cookie     The $_COOKIE array
      * @param string $clientIpId Client IP address identifier
      */
-    public function checkLoginState($cookie, $clientIpId)
+    public function checkLoginState($clientIpId)
     {
         if (! $this->configManager->exists('credentials.login')) {
             // Shaarli is not configured yet
@@ -97,9 +97,7 @@ class LoginManager
             return;
         }
 
-        if (isset($cookie[self::$STAY_SIGNED_IN_COOKIE])
-            && $cookie[self::$STAY_SIGNED_IN_COOKIE] === $this->staySignedInToken
-        ) {
+        if ($this->staySignedInToken === $this->cookieManager->getCookieParameter(CookieManager::STAY_SIGNED_IN)) {
             // The user client has a valid stay-signed-in cookie
             // Session information is updated with the current client information
             $this->sessionManager->storeLoginInfo($clientIpId);
diff --git a/application/security/SessionManager.php b/application/security/SessionManager.php
index 0ac17d9a..82771c24 100644
--- a/application/security/SessionManager.php
+++ b/application/security/SessionManager.php
@@ -31,16 +31,21 @@ class SessionManager
     /** @var bool Whether the user should stay signed in (LONG_TIMEOUT) */
     protected $staySignedIn = false;
 
+    /** @var string */
+    protected $savePath;
+
     /**
      * Constructor
      *
-     * @param array         $session The $_SESSION array (reference)
-     * @param ConfigManager $conf    ConfigManager instance
+     * @param array         $session  The $_SESSION array (reference)
+     * @param ConfigManager $conf     ConfigManager instance
+     * @param string        $savePath Session save path returned by builtin function session_save_path()
      */
-    public function __construct(& $session, $conf)
+    public function __construct(&$session, $conf, string $savePath)
     {
         $this->session = &$session;
         $this->conf = $conf;
+        $this->savePath = $savePath;
     }
 
     /**
@@ -249,4 +254,9 @@ class SessionManager
 
         return $this;
     }
+
+    public function getSavePath(): string
+    {
+        return $this->savePath;
+    }
 }
diff --git a/application/updater/Updater.php b/application/updater/Updater.php
index f73a7452..4c578528 100644
--- a/application/updater/Updater.php
+++ b/application/updater/Updater.php
@@ -39,6 +39,11 @@ class Updater
     protected $methods;
 
     /**
+     * @var string $basePath Shaarli root directory (from HTTP Request)
+     */
+    protected $basePath = null;
+
+    /**
      * Object constructor.
      *
      * @param array                    $doneUpdates Updates which are already done.
@@ -62,11 +67,13 @@ class Updater
      * Run all new updates.
      * Update methods have to start with 'updateMethod' and return true (on success).
      *
+     * @param string $basePath Shaarli root directory (from HTTP Request)
+     *
      * @return array An array containing ran updates.
      *
      * @throws UpdaterException If something went wrong.
      */
-    public function update()
+    public function update(string $basePath = null)
     {
         $updatesRan = [];
 
@@ -123,16 +130,14 @@ class Updater
     }
 
     /**
-     * With the Slim routing system, default header link should be `./` instead of `?`.
-     * Otherwise you can not go back to the home page. Example: `/picture-wall` -> `/picture-wall?` instead of `/`.
+     * With the Slim routing system, default header link should be `/subfolder/` instead of `?`.
+     * Otherwise you can not go back to the home page.
+     * Example: `/subfolder/picture-wall` -> `/subfolder/picture-wall?` instead of `/subfolder/`.
      */
     public function updateMethodRelativeHomeLink(): bool
     {
-        $link = trim($this->conf->get('general.header_link'));
-        if ($link[0] === '?') {
-            $link = './'. ltrim($link, '?');
-
-            $this->conf->set('general.header_link', $link, true, true);
+        if ('?' === trim($this->conf->get('general.header_link'))) {
+            $this->conf->set('general.header_link', $this->basePath . '/', true, true);
         }
 
         return true;
@@ -152,7 +157,7 @@ class Updater
                 && 1 === preg_match('/^\?([a-zA-Z0-9-_@]{6})($|&|#)/', $bookmark->getUrl(), $match)
             ) {
                 $updated = true;
-                $bookmark = $bookmark->setUrl('/shaare/' . $match[1]);
+                $bookmark = $bookmark->setUrl($this->basePath . '/shaare/' . $match[1]);
 
                 $this->bookmarkService->set($bookmark, false);
             }
@@ -164,4 +169,11 @@ class Updater
 
         return true;
     }
+
+    public function setBasePath(string $basePath): self
+    {
+        $this->basePath = $basePath;
+
+        return $this;
+    }
 }