Initial translation

server/core.php

@@ -481,12 +481,68 @@ class user{
   }
 }
 
+class translations{
+  public $loaded_languages = ["en"];
+  public $default_language = "en";
+  public $language = "en";
+  public $client_languages = ["en"];
+  public $loaded_translations = [];
+  public $filename = "";
+
+  public function client_languages() {
+    $client_languages = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
+    if(strpos($client_languages, ';') == false){
+        if(strpos($client_languages, '-') !== false){
+            return [substr($client_languages, 0, 5)];
+        } else {
+            return [substr($client_languages, 0, 2)];
+        }
+    } else {
+        $client_languages = explode(",", $client_languages);
+        $tmp_languages = [];
+        foreach($client_languages as $key=>$language){
+            if(strpos($language, ';') == false){
+                $tmp_languages[$language] = 1;
+            } else {
+                $tmp_languages[explode(";q=",$language)[0]] = (float) explode(";q=",$language)[1];
+            }
+        }
+        arsort($tmp_languages);
+        return array_keys($tmp_languages);
+    }
+  }
+
+  public function __construct(){
+    $this->client_languages = $this->client_languages();
+    foreach($this->client_languages as $language){
+      if(in_array($language, $this->loaded_languages)){
+        $this->language = $language;
+      }
+    }
+  }
+
+  public function translate($string){
+    try {
+      $this->filename = "translations/".$this->language."/".pathinfo(array_reverse(debug_backtrace())[0]['file'])['basename'];
+      if (!file_exists($this->filename))
+        throw new Exception ('file does not exist');
+      $this->loaded_translations = require($this->filename);
+      if (!in_array($string, $this->loaded_translations))
+        throw new Exception ('string does not exist');
+      return $this->loaded_translations[$string];
+    } catch (\Exception $e) {
+      return $string;
+    }
+  }
+}
+
 function init_class(){
-  global $user, $tools, $database;
-  if(!isset($user) && !isset($tools) && !isset($database)){
+  global $tools, $database, $user, $translations;
+  if(!isset($tools) && !isset($database) && !isset($translations)){
     $database = new database();
     $tools = new tools($database->getOption("check_cf_ip"));
     $user = new user($database, $tools);
+    $translations = new translations();
   }
   //if($user->requireRole(Role::DEVELOPER)){
     Debugger::enable(Debugger::DEVELOPMENT, __DIR__ . '/error-log');

server/templates/index.html

@@ -24,10 +24,10 @@ $("#err").delay(5000).fadeOut(300);
 <div class="container text-center" id="modulogin">
   <form method="post">
     <img alt="VVF" src="{{ urlsoftware }}/risorse/images/logo.png" class="img-resposive"><br><br><br>
-    <input type="text" name="name" placeholder="name" required autocomplete="username" autofocus><br><br>
-    <input type="password" name="password" placeholder="Password" required autocomplete="current-password"><br><br>
-    <input type="checkbox" name="connesso" value='1' id="connesso" hidden checked><label hidden for='connesso'>Rimani Connesso</label><br>
-    <input type="submit" name="login" class="btn btn-lg btn-success" value="Accedi">
+    <input type="text" name="name" placeholder="{{ 'username'|t }}" required autocomplete="username" autofocus><br><br>
+    <input type="password" name="password" placeholder="{{ 'password'|t }}" required autocomplete="current-password"><br><br>
+    <input type="checkbox" name="connesso" value='1' id="connesso" hidden checked><label hidden for='connesso'>{{ 'Stay connected'|t }}</label><br>
+    <input type="submit" name="login" class="btn btn-lg btn-success" value="{{ 'Login'|t }}">
   </form>
 </div>
 <br><br>

server/templates/lista.html

@@ -3,10 +3,10 @@
 {% block content %}
     <br>
     <div class="text-center">
-      <p>Sei avaible in caso di allerta?</p>
-      <button class="btn btn-lg btn-success " onclick="Attivo('{{ user.id }}')">Attivo</button>
+      <p>{{ 'Are you avaible in case of alert?'|t }}</p>
+      <button class="btn btn-lg btn-success " onclick="Attivo('{{ user.id }}')">{{ 'Active'|t }}</button>
 
-      <button class="btn btn-lg btn-danger" style="background-color: red" onclick="NonAttivo('{{ user.id }}')">Non Attivo</button>
+      <button class="btn btn-lg btn-danger" style="background-color: red" onclick="NonAttivo('{{ user.id }}')">{{ 'Not Active'|t }}</button>
     </div>
     <script defer>
       function Attivo(id){

server/translations/en/index.php

@@ -0,0 +1,9 @@
+<?php
+// Translated by: Name Surname (github, email or another social profile url/username)
+
+return [
+    "username" => "username",
+    "password" => "password",
+    "Stay connected" => "Stay connected",
+    "Login" => "Login"
+];

server/translations/en/lista.php

@@ -0,0 +1,8 @@
+<?php
+// Translated by: Name Surname (github, email or another social profile url/username)
+
+return [
+    "Are you avaible in case of alert?" => "Are you avaible in case of alert?",
+    "Active" => "Active",
+    "Not Active" => "Not Active"
+];

server/ui.php

@@ -7,9 +7,14 @@ try {
 } catch (Exception $e) {
     $loader = new \Twig\Loader\FilesystemLoader('../templates');
 }
+$filter = new \Twig\TwigFilter('t', function ($string) {
+  global $translations;
+  return $translations->translate($string);
+});
 $twig = new \Twig\Environment($loader, [
     //'cache' => 'compilation'
 ]);
+$twig->addFilter($filter);
 $template = NULL;
 function loadtemplate($templatename, $data, $requirelogin=true){
   global $database, $user, $twig, $template;