Fixed Multi-user system

inc/poche/Database.class.php

@@ -230,11 +230,48 @@ class Database {
         }
     }
     
+    public function listUsers($username=null) {
+        $sql = 'SELECT count(*) FROM users'.( $username ? ' WHERE username=?' : '');
+        $query = $this->executeQuery($sql, ( $username ? array($username) : array()));
+        list($count) = $query->fetch();
+        return $count;
+    }
+    
+    public function getUserPassword($userID) {
+        $sql = "SELECT * FROM users WHERE id=?";
+        $query = $this->executeQuery($sql, array($userID));
+        $password = $query->fetchAll();
+        return isset($password[0]['password']) ? $password[0]['password'] : null;
+    }
+    
+    public function deleteUserConfig($userID) {
+        $sql_action = 'DELETE from users_config WHERE user_id=?';
+        $params_action = array($userID);
+        $query = $this->executeQuery($sql_action, $params_action);
+        return $query;
+    }
+    
+    public function deleteTagsEntriesAndEntries($userID) {
+        $entries = $this->retrieveAll($userID);
+        foreach($entries as $entryid) {
+            $tags = $this->retrieveTagsByEntry($entryid);
+            foreach($tags as $tag) {
+                $this->removeTagForEntry($entryid,$tags);
+            }
+            $this->deleteById($entryid,$userID);
+        }
+    }
+    
+    public function deleteUser($userID) {
+        $sql_action = 'DELETE from users WHERE id=?';
+        $params_action = array($userID);
+        $query = $this->executeQuery($sql_action, $params_action);
+    }
+
     public function updateContentAndTitle($id, $title, $body, $user_id) {
         $sql_action = 'UPDATE entries SET content = ?, title = ? WHERE id=? AND user_id=?';
         $params_action = array($body, $title, $id, $user_id);
         $query = $this->executeQuery($sql_action, $params_action);
-
         return $query;
     }
 

inc/poche/Poche.class.php

@@ -242,6 +242,58 @@ class Poche
         $this->tpl->addFilter($filter);
     }
     
+    public function createNewUser() {
+        if (isset($_GET['newuser'])){
+            if ($_POST['newusername'] != "" && $_POST['password4newuser'] != ""){
+                $newusername = filter_var($_POST['newusername'], FILTER_SANITIZE_STRING);
+                if (!$this->store->userExists($newusername)){	
+                    if ($this->store->install($newusername, Tools::encodeString($_POST['password4newuser'] . $newusername))) {
+                        Tools::logm('The new user '.$newusername.' has been installed');
+                        $this->messages->add('s', sprintf(_('The new user %s has been installed. Do you want to <a href="?logout">logout ?</a>'),$newusername));
+                        Tools::redirect();
+                    }
+                    else {
+                        Tools::logm('error during adding new user');
+                        Tools::redirect();
+                    }
+                }
+                else {
+                    $this->messages->add('e', sprintf(_('Error : An user with the name %s already exists !'),$newusername));
+                    Tools::logm('An user with the name '.$newusername.' already exists !');
+                    Tools::redirect();
+                }
+            }
+        }
+    }
+   
+    public function deleteUser(){
+        if (isset($_GET['deluser'])){
+            if ($this->store->listUsers() > 1) {
+                if (Tools::encodeString($_POST['password4deletinguser'].$this->user->getUsername()) == $this->store->getUserPassword($this->user->getId())) {
+                    $username = $this->user->getUsername();
+                    $this->store->deleteUserConfig($this->user->getId());
+                    Tools::logm('The configuration for user '. $username .' has been deleted !');
+                    $this->store->deleteTagsEntriesAndEntries($this->user->getId());
+                    Tools::logm('The entries for user '. $username .' has been deleted !');
+                    $this->store->deleteUser($this->user->getId());
+                    Tools::logm('User '. $username .' has been completely deleted !');
+                    Session::logout();
+                    Tools::logm('logout');
+                    Tools::redirect();
+                    $this->messages->add('s', sprintf(_('User %s has been successfully deleted !'),$newusername));
+                }
+                else {
+                    Tools::logm('Bad password !');
+                    $this->messages->add('e', _('Error : The password is wrong !'));
+                }
+            }
+            else {
+                Tools::logm('Only user !');
+                $this->messages->add('e', _('Error : You are the only user, you cannot delete your account !'));
+            }
+        }
+    }
+
     private function install()
     {
         Tools::logm('poche still not installed');
@@ -520,6 +572,7 @@ class Poche
                 $languages = $this->getInstalledLanguages();
                 $token = $this->user->getConfigValue('token');
                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
+                $only_user = ($this->store->listUsers() > 1) ? false : true;
                 $tpl_vars = array(
                     'themes' => $themes,
                     'languages' => $languages,
@@ -532,6 +585,7 @@ class Poche
                     'token' => $token,
                     'user_id' => $this->user->getId(),
                     'http_auth' => $http_auth,
+                    'only_user' => $only_user
                 );
                 Tools::logm('config view');
                 break;

index.php

@@ -66,6 +66,10 @@ if (isset($_GET['login'])) {
 } elseif (isset($_GET['config'])) {
     # Update password
     $poche->updatePassword();
+} elseif (isset($_GET['newuser'])) {
+    $poche->createNewUser();
+} elseif (isset($_GET['deluser'])) {
+    $poche->deleteUser();
 } elseif (isset($_GET['import'])) {
     $import = $poche->import();
     $tpl_vars = array_merge($tpl_vars, $import);

themes/baggy/config.twig

@@ -128,4 +128,36 @@
             <h2>{% trans "Cache" %}</h2>
             <p><a href="?empty-cache">{% trans "Click here" %}</a> {% trans "to delete cache." %}</p>
 
+            <h2>{% trans 'Add user' %}</h2>
+            <p>{% trans 'Add a new user :' %}</p>
+            <form method="post" action="?newuser">
+                <fieldset class="w500p">
+                <div class="row">
+                    <label class="col w150p" for="newusername">{% trans 'Login for new user' %}</label>
+                    <input class="col" type="text" id="newusername" name="newusername" placeholder="{% trans 'Login' %}">
+                </div>
+                <div class="row">
+                    <label class="col w150p" for="password4newuser">{% trans "Password for new user" %}</label>
+                    <input class="col" type="password" id="password4newuser" name="password4newuser" placeholder="{% trans "Password" %}">
+                </div>
+                <div class="row mts txtcenter">
+                    <button type="submit">{% trans "Send" %}</button>	
+                </div>
+                </fieldset>
+            </form>
+            
+            <h2>{% trans "Delete account" %}</h2>
+            {% if not only_user %}<form method="post" action="?deluser">
+            <p>{% trans "You can delete your account by entering your password and validating." %}<br /><b>{% trans "Be careful, data will be erased forever (that is a very long time)." %}</b></p>
+            <fieldset class="w500p">
+                <div class="row">
+                    <label class="col w150p" for="password4deletinguser">{% trans "Type here your password" %}</label>
+                    <input class="col" type="password" id="password4deletinguser" name="password4deletinguser" placeholder="{% trans "Password" %}">
+                </div>
+            <div class="row mts txtcenter">
+                <button type="submit">{% trans "Send" %}</button>
+            </div>
+            </form>
+            {% else %}<p>{% trans "You are the only user, you cannot delete your own account." %}<br />
+            {% trans "To completely remove wallabag, delete the wallabag folder on your web server." %}</p>{% endif %}
 {% endblock %}