lib/lang.php

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