[FIX] lang sanity check

[jirafeau_project.git] / lib / lang.php

diff --git a/lib/lang.php b/lib/lang.php
index fc7f0bc99e2075afc4334b0ee5de347215ec7da2..3bdef6a5cff622680489acd3d9cc828cd3ae1a3c 100644 (file)
--- a/lib/lang.php
+++ b/lib/lang.php
@@ -17,105 +17,104 @@
  *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-global $languages_list;
-$languages_list = array('auto' => 'Automatic',
-                         'de'   => 'Deutsch',
-                         'en'   => 'English',
-                         'el'   => 'Ελληνικά',
-                         'es'   => 'Español',
-                         'hu'   => 'Magyar',
-                         'fi'   => 'Suomi',
-                         'fr'   => 'Français',
-                         'it'   => 'Italiano',
-                         'nl'   => 'Nederlands',
-                         'pt'   => 'português',
-                         'pt_BR'   => 'português (Brasil)',
-                         'ro'   => 'Limba română',
-                         'ru'   => 'ру́сский',
-                         'sk'   => 'Slovenčina',
-                         'tr'   => 'Türkçe',
-                         'zh'   => '汉语');
-
-/* Translation */
-function t($text)
+function t($string_id)
 {
-    $cfg = $GLOBALS['cfg'];
-    $languages_list = $GLOBALS['languages_list'];
+    $lang_config = $GLOBALS['cfg']['lang'];
+    if ($lang_config != "auto") {
+        $r = t_in($string_id, $lang_config);
+        if ($r === false || $r === "") {
+            return "FIX ME";
+        }
+        return $r;
+    }
 
-    /* Detect user's langage if we are in automatic mode. */
-    if (strcmp($cfg['lang'], 'auto') == 0) {
-        if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
-            $l = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);
+    $visitor_langs = t_visitor_langs();
+    foreach ($visitor_langs as $lang) {
+        $r = t_in($string_id, $lang);
+        if ($r === false || $r === "") {
+            continue;
         } else {
-            $l = "en";
+            return $r;
         }
-    } else {
-        $l = $cfg['lang'];
     }
+    return "FIX ME";
+}
+
+function t_visitor_langs() {
+    $visitor_langs = t_parse_accept_language();
+    array_push($visitor_langs, "en");
+    return $visitor_langs;
+}
 
-    /* Is the langage in the list ? */
-    $found = false;
-    foreach ($languages_list as $key => $v) {
-        if (strcmp($l, $key) == 0) {
-            $found = true;
+function t_parse_accept_language() {
+    if (!isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
+        return [];
+    }
+    // Example: fr-CH, fr;q=0.9, en;q=0.8, de;q=0.7, *;q=0.5
+    $langs = [];
+    $cols = explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
+    foreach ($cols as $i => $semicols) {
+        $lang = explode(';', $semicols);
+        if (count($lang) === 0) {
+            continue;
         }
+        array_push($langs, $lang[0]);
     }
+    return $langs;
+}
 
-    /* Don't translate english. */
-    if (!($found && strcmp($l, "en"))) {
-        return $text;
+function t_in($string_id, $lang) {
+    $trans = t_get_json($lang);
+    if ($trans === false) {
+        return false;
     }
-
-    /* Open translation file. */
-    $trans_j = file_get_contents(JIRAFEAU_ROOT . "lib/locales/$l.json");
-    if ($trans_j === false) {
-        return $text;
+    if (!array_key_exists($string_id, $trans)) {
+        return false;
     }
+    return $trans[$string_id];
+}
 
-    /* Decode JSON. */
-    $trans = json_decode($trans_j, true);
-    if ($trans === null) {
-        return $text;
+function t_get_raw_json($lang) {
+    $filename = str_replace("-", "_", $lang);
+    if (preg_match('/[^A-Za-z_\w]/', $filename)) {
+        return false;
     }
-
-    /* Try to find translation. */
-    if (!array_key_exists($text, $trans)) {
-        return $text;
+    $p = JIRAFEAU_ROOT . "lib/locales/$filename.json";
+    if (!file_exists($p)) {
+        return false;
     }
-
-    return $trans[$text];
+    $json = file_get_contents($p);
+    if ($json === false) {
+        return false;
+    }
+    return $json;
 }
 
-function json_lang_generator()
-{
-    $cfg = $GLOBALS['cfg'];
-    $languages_list = $GLOBALS['languages_list'];
+function t_get_json($lang) {
+    $raw_j = t_get_raw_json($lang);
+    $array = json_decode($raw_j, true);
+    if ($array === null) {
+        return false;
+    }
+    return $array;
+}
 
-    /* Detect user's langage if we are in automatic mode. */
-    if (strcmp($cfg['lang'], 'auto') == 0) {
-        if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
-            $l = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);
+function json_lang_generator($lang) {
+    $r = false;
+    if ($lang === null) {
+        $lang_config = $GLOBALS['cfg']['lang'];
+        if ($lang_config != "auto") {
+            $r = t_get_raw_json($lang_config);
         } else {
-            $l = "en";
+            foreach(t_visitor_langs() as $lang) {
+                $r = t_get_raw_json($lang);
+                if (!($r === false)) {
+                    break;
+                }
+            }
         }
     } else {
-        $l = $cfg['lang'];
+        $r = t_get_raw_json($lang);
     }
-
-    /* Is the langage in the list ? */
-    $found = false;
-    foreach ($languages_list as $key => $v) {
-        if (strcmp($l, $key) == 0) {
-            $found = true;
-        }
-    }
-
-    /* Don't translate english. */
-    if (!($found && strcmp($l, "en"))) {
-        return "{}";
-    }
-
-    /* Open translation file. */
-    $trans_j = file_get_contents(JIRAFEAU_ROOT . "lib/locales/$l.json");
-    return $trans_j;
+    return $r === false ? "{}" : $r;
 }