2 files changed, 54 insertions, 19 deletions

diff --git a/inc/poche/Poche.class.php b/inc/poche/Poche.class.php
index 82f0228e..1d8aaca2 100644
--- a/inc/poche/Poche.class.php
+++ b/inc/poche/Poche.class.php
@@ -18,11 +18,10 @@ class Poche
 
     function __construct()
     {
-        if (file_exists('./install') && !DEBUG_POCHE) {
-            Tools::logm('folder /install exists');
-            die('If you want to update your poche, you just have to delete /install folder. <br />To install your poche with sqlite, copy /install/poche.sqlite in /db and delete the folder /install. you have to delete the /install folder before using poche.');
+        $this->initTpl();
+        if (!$this->checkBeforeInstall()) {
+            exit;
         }
-
         $this->store = new Database();
         $this->init();
         $this->messages = new Messages();
@@ -34,27 +33,37 @@ class Poche
         }
     }
 
-    private function init() 
+    /**
+     * all checks before installation.
+     * @return boolean 
+     */
+    private function checkBeforeInstall()
     {
-        Tools::initPhp();
-        Session::init();
+        $msg = '';
+        $allIsGood = TRUE;
+        if (file_exists('./install') && !DEBUG_POCHE) {
+            Tools::logm('folder /install exists');
+            $msg = 'If you want to update your poche, you just have to delete /install folder. <br />To install your poche with sqlite, copy /install/poche.sqlite in /db and delete the folder /install. you have to delete the /install folder before using poche.';
+            $allIsGood = FALSE;
+        }
 
-        if (isset($_SESSION['poche_user']) && $_SESSION['poche_user'] != array()) {
-            $this->user = $_SESSION['poche_user'];
+        if (STORAGE == 'sqlite' && !is_writable(STORAGE_SQLITE)) {
+            Tools::logm('you don\'t have write access on db file');
+            $msg = 'You don\'t have write access on ' . STORAGE_SQLITE . ' file.';
+            $allIsGood = FALSE;
         }
-        else {
-            # fake user, just for install & login screens
-            $this->user = new User();
-            $this->user->setConfig($this->getDefaultConfig());
+
+        if (!$allIsGood) {
+            echo $this->tpl->render('error.twig', array(
+                'msg' => $msg
+            ));
         }
 
-        # l10n
-        $language = $this->user->getConfigValue('language');
-        putenv('LC_ALL=' . $language);
-        setlocale(LC_ALL, $language);
-        bindtextdomain($language, LOCALE); 
-        textdomain($language); 
+        return $allIsGood;
+    }
 
+    private function initTpl()
+    {
         # template engine
         $loader = new Twig_Loader_Filesystem(TPL);
         if (DEBUG_POCHE) {
@@ -72,6 +81,28 @@ class Poche
         # filter for reading time
         $filter = new Twig_SimpleFilter('getReadingTime', 'Tools::getReadingTime');
         $this->tpl->addFilter($filter);
+    }
+
+    private function init() 
+    {
+        Tools::initPhp();
+        Session::init();
+
+        if (isset($_SESSION['poche_user']) && $_SESSION['poche_user'] != array()) {
+            $this->user = $_SESSION['poche_user'];
+        }
+        else {
+            # fake user, just for install & login screens
+            $this->user = new User();
+            $this->user->setConfig($this->getDefaultConfig());
+        }
+
+        # l10n
+        $language = $this->user->getConfigValue('language');
+        putenv('LC_ALL=' . $language);
+        setlocale(LC_ALL, $language);
+        bindtextdomain($language, LOCALE); 
+        textdomain($language); 
 
         # Pagination
         $this->pagination = new Paginator($this->user->getConfigValue('pager'), 'p');
diff --git a/inc/poche/config.inc.php b/inc/poche/config.inc.php
index ba8a9fa0..ecbf1ce6 100644
--- a/inc/poche/config.inc.php
+++ b/inc/poche/config.inc.php
@@ -34,6 +34,10 @@ define ('PAGINATION', '10');
 define ('THEME', 'light');
 
 # /!\ Be careful if you change the lines below /!\
+if (!file_exists('./vendor/autoload.php')) {
+    die('Twig does not seem installed. Have a look at <a href="http://inthepoche.com/?pages/Documentation">the documentation.</a>');
+}
+ 
 require_once './inc/poche/User.class.php';
 require_once './inc/poche/Tools.class.php';
 require_once './inc/poche/Url.class.php';