lib/lang.php

   1 <?php
   2 /*
   3  *  Jirafeau, your web file repository
   4  *  Copyright (C) 2008  Julien "axolotl" BERNARD <axolotl@magieeternelle.org>
   5  *  Copyright (C) 2015  Jerome Jutteau <jerome@jutteau.fr>
   6  *  Copyright (C) 2024  Jirafeau project <https://gitlab.com/jirafeau> (see AUTHORS.md)
   7  *
   8  *  This program is free software: you can redistribute it and/or modify
   9  *  it under the terms of the GNU Affero General Public License as
  10  *  published by the Free Software Foundation, either version 3 of the
  11  *  License, or (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU Affero General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU Affero General Public License
  19  *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
  20  */
  21
  22 function t($string_id)
  23 {
  24     $lang_config = $GLOBALS['cfg']['lang'];
  25     if ($lang_config != "auto") {
  26         $r = t_in($string_id, $lang_config);
  27         if ($r === false || $r === "") {
  28             return "FIX ME";
  29         }
  30         return $r;
  31     }
  32
  33     $visitor_langs = t_visitor_langs();
  34     foreach ($visitor_langs as $lang) {
  35         $r = t_in($string_id, $lang);
  36         if ($r === false || $r === "") {
  37             continue;
  38         } else {
  39             return $r;
  40         }
  41     }
  42     return "FIX ME";
  43 }
  44
  45 function t_visitor_langs()
  46 {
  47     $visitor_langs = t_parse_accept_language();
  48     array_push($visitor_langs, "en");
  49     return $visitor_langs;
  50 }
  51
  52 function t_parse_accept_language()
  53 {
  54     if (!isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
  55         return [];
  56     }
  57     // Example: fr-CH, fr;q=0.9, en;q=0.8, de;q=0.7, *;q=0.5
  58     $langs = [];
  59     $cols = explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
  60     foreach ($cols as $i => $semicols) {
  61         $lang = explode(';', $semicols);
  62         if (count($lang) === 0) {
  63             continue;
  64         }
  65         array_push($langs, $lang[0]);
  66     }
  67     return $langs;
  68 }
  69
  70 function t_in($string_id, $lang)
  71 {
  72     $trans = t_get_json($lang);
  73     if ($trans === false) {
  74         return false;
  75     }
  76     if (!array_key_exists($string_id, $trans)) {
  77         return false;
  78     }
  79     return $trans[$string_id];
  80 }
  81
  82 function t_get_raw_json($lang)
  83 {
  84     $filename = str_replace("-", "_", $lang);
  85     if (preg_match('/[^A-Za-z_\w]/', $filename)) {
  86         return false;
  87     }
  88     $p = JIRAFEAU_ROOT . "lib/locales/$filename.json";
  89     if (!file_exists($p)) {
  90         return false;
  91     }
  92     $json = file_get_contents($p);
  93     if ($json === false) {
  94         return false;
  95     }
  96     return $json;
  97 }
  98
  99 function t_get_json($lang)
 100 {
 101     $raw_j = t_get_raw_json($lang);
 102     $array = json_decode($raw_j, true);
 103     if ($array === null) {
 104         return false;
 105     }
 106     return $array;
 107 }
 108
 109 function json_lang_generator($lang)
 110 {
 111     $r = false;
 112     if ($lang === null) {
 113         $lang_config = $GLOBALS['cfg']['lang'];
 114         if ($lang_config != "auto") {
 115             $r = t_get_raw_json($lang_config);
 116         } else {
 117             foreach (t_visitor_langs() as $lang) {
 118                 $r = t_get_raw_json($lang);
 119                 if (!($r === false)) {
 120                     break;
 121                 }
 122             }
 123         }
 124     } else {
 125         $r = t_get_raw_json($lang);
 126     }
 127     return $r === false ? "{}" : $r;
 128 }