ncp-web: add localization (#372)

* Implement localization loader L10N.

Localize a few strings in index.php for testing.

* Determine language from HTTP_ACCEPT_LANGUAGE header.

* Fix parsing of available languages for localization.

* Fix parsing of language translations (for localization).

* Fix function L10N->find_language

* Change variable naming to comply with conventions.

* Add remaining localize calls in index.php.

Add more localization strings.

* Fix styles to prevent check mark from being hidden.

* Handle exception in case localization couldn't be loaded.

* Add module localization support.

* Fix detection of core module in L10N->load

* Remove module specific localization from core l10n file.

* Fix determination of module name in L10N->load.

* Add localization files for more modules.

* Ignore l10n directory in modules path.

* Add support for dropdown lists in module settings.

* Add support for saving dropdown menus.

* Fix regex for recognizing dropdown option lists.

* Fix dropdown list regex not recognizing active option.

* Fix typo in ncp-launcher.php

* Workaround for jquery's 'find' method not working. //TODO: Find proper fix.

* Fix parsing of dropdown lists when updating config.

* Load language setting from config if available.

* add ncp-provisioning to SD card images

* Add intellij config to gitignore

* Fix bug when loading language from nc-webui config.

* Remove redundant language definition.
Replace umlauts by html special char expressions.

* Change selected option markup from `*<option>*` to `_<option>_`.

* Remove ide metadata.

* Add translations for ncp-app nc-backup.

* Add translation hooks to ncp-launcher.php

* Fix type in translations for nc-backup

* Remove translation hooks for field contents in ncp-launcher.php

.gitignore

@@ -1,6 +1,7 @@
 .*.swp
 *.img
 *.bz2
+.idea/
 qemu-raspbian-network/
 torrent/
 armbian/

changelog.md

@@ -1,5 +1,7 @@
 
-[v0.46.34](https://github.com/nextcloud/nextcloudpi/commit/2694914) (2018-02-26) ncp-web: fix responsive in iPad
+[v0.46.35](https://github.com/nextcloud/nextcloudpi/commit/e417926) (2018-02-26) ncp-web: add localization (#372)
+
+[v0.46.34](https://github.com/nextcloud/nextcloudpi/commit/3fc902b) (2018-02-26) ncp-web: fix responsive in iPad
 
 [v0.46.33](https://github.com/nextcloud/nextcloudpi/commit/dea4836) (2018-02-23) Added some useful comments for first time users
 

etc/nextcloudpi-config.d/l10n/nc-audit/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-audit": "Sicherheitsüberprüfung"
+}}

etc/nextcloudpi-config.d/l10n/nc-automount/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-automount": "Automatische Datenträgereinbindung"
+}}

etc/nextcloudpi-config.d/l10n/nc-autoupdate-ncp/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-autoupdate-ncp": "Automatische NextCloudPi Updates"
+}}

etc/nextcloudpi-config.d/l10n/nc-backup-auto/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-backup-auto": "Automatische Backups"
+}}

etc/nextcloudpi-config.d/l10n/nc-backup/de.json

@@ -0,0 +1,7 @@
+{"translations": {
+    "nc-backup": "Backup erstellen",
+    "DESTDIR": "Zielverzeichnis",
+    "INCLUDEDATA": "Inkl. Dateien",
+    "COMPRESS": "Komprimieren",
+    "BACKUPLIMIT": "Maximale Anzahl"
+}}

etc/nextcloudpi-config.d/l10n/nc-database/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-database": "Datenbank"
+}}

etc/nextcloudpi-config.d/l10n/nc-datadir/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-datadir": "Datenverzeichnis"
+}}

etc/nextcloudpi-config.d/l10n/nc-export-npc/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-export-ncp": "NCP Export"
+}}

etc/nextcloudpi-config.d/l10n/nc-fix-permissions/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-fix-permissions": "Berechtigungen wiederherstellen"
+}}

etc/nextcloudpi-config.d/l10n/nc-format-USB/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-format-USB": "USB Laufwerke formatieren"
+}}

etc/nextcloudpi-config.d/l10n/nc-forward-ports/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-forward-ports": "Portweiterleitungen"
+}}

etc/nextcloudpi-config.d/l10n/nc-httpsonly/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-httpsonly": "HTTPS Zwang"
+}}

etc/nextcloudpi-config.d/l10n/nc-import-ncp/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-import-ncp": "NCP Import"
+}}

etc/nextcloudpi-config.d/l10n/nc-info/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-info": "System Informationen"
+}}

etc/nextcloudpi-config.d/l10n/nc-init/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-init": "Initialisierung"
+}}

etc/nextcloudpi-config.d/l10n/nc-limits/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-limits": "Systembegrenzungen"
+}}

etc/nextcloudpi-config.d/l10n/nc-nextcloud/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-nextcloud": "Nextcloud Einstellungen"
+}}

etc/nextcloudpi-config.d/l10n/nc-notify-updates/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-notify-updates": "Update-Benachrichtigungen"
+}}

etc/nextcloudpi-config.d/l10n/nc-passwd/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-passwd": "NCP Passwort"
+}}

etc/nextcloudpi-config.d/l10n/nc-ramlogs/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-ramlogs": "Ram Logs"
+}}

etc/nextcloudpi-config.d/l10n/nc-restore/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-restore": "Wiederherstellung"
+}}

etc/nextcloudpi-config.d/l10n/nc-scan-auto/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-scan-auto": "Automatischer Datei-Scan"
+}}

etc/nextcloudpi-config.d/l10n/nc-scan/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-scan": "Datei-Scan"
+}}

etc/nextcloudpi-config.d/l10n/nc-snapshot-auto/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-snapshot-auto": "Automatische Snapshots"
+}}

etc/nextcloudpi-config.d/l10n/nc-snapshot/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-snapshot": "Snapshot erstellen"
+}}

etc/nextcloudpi-config.d/l10n/nc-static-IP/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-static-IP": "Statische IP Adresse"
+}}

etc/nextcloudpi-config.d/l10n/nc-swapfile/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-swapfile": "Swap Datei"
+}}

etc/nextcloudpi-config.d/l10n/nc-update/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-update": "Update"
+}}

etc/nextcloudpi-config.d/l10n/nc-webui/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-webui": "NCP Weboberfläche"
+}}

etc/nextcloudpi-config.d/l10n/nc-wifi/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "nc-wifi": "WLAN"
+}}

etc/nextcloudpi-config.d/l10n/unattended-upgrades/de.json

@@ -0,0 +1,3 @@
+{"translations": {
+    "unattended-upgrades": "Unüberwachte System-Upgrades"
+}}

etc/nextcloudpi-config.d/nc-webui.sh

@@ -14,6 +14,7 @@
 #
 
 ACTIVE_=yes
+LANGUAGE_=[_auto_,en,de]
 DESCRIPTION="Enable or disable the NCP web interface"
 
 configure() 

ncp-web/L10N.php

@@ -0,0 +1,127 @@
+<?php
+
+class L10N {
+    private $translations = [];
+    const default_language = "en_US";
+    private $language;
+
+    public function __construct($desired_languages, $l10n_dir, $modules_path=null)
+    {
+        if (!isset($desired_languages)) {
+            $desired_languages = "";
+        }
+
+        $l10n_dir = rtrim($l10n_dir, '/');
+        $available_languages = array_filter(scandir($l10n_dir),
+            function ($s) {
+                return pathinfo($s, PATHINFO_EXTENSION) == "json";
+            });
+        $available_languages = array_map(
+            function ($s) {
+                return basename($s, ".json");
+            },
+            $available_languages);
+
+        $desired_lang = $this->load_language_setting($modules_path);
+        if($desired_lang != "auto")
+        {
+          $desired_languages = $desired_lang;
+        }
+        $lang = $this->find_language($available_languages, $desired_languages);
+        $this->language = $lang;
+        if ($lang === L10N::default_language || !file_exists(join('/', [$l10n_dir, $lang . ".json"])) || !$this->load($lang, $l10n_dir, $modules_path)) {
+            $this->language = L10N::default_language;
+        }
+    }
+
+    function load($lang, $l10n_dir, $modules_path)
+    {
+      $modules_path = join('/', [rtrim($modules_path, '/'), $l10n_dir]);
+      $files = [join('/', [$l10n_dir, $lang . ".json"])];
+      if (is_dir($modules_path)) {
+	foreach (scandir($modules_path) as $dir) {
+	  $file_path = join('/', [$modules_path, trim($dir, '/'), $lang . ".json"]);
+	  if (is_file($file_path)) {
+            array_push($files, $file_path);
+	  }
+	}
+      }
+
+      $jsonError = null;
+      foreach ($files as $file) {
+        $module_name = pathinfo(pathinfo($file, PATHINFO_DIRNAME), PATHINFO_BASENAME);
+        if( $module_name == pathinfo($l10n_dir, PATHINFO_BASENAME)) {
+          $module_name = "__core__";
+        }
+        $json = json_decode(file_get_contents($file), true);
+        if (!is_array($json)) {
+          $jsonError = json_last_error();
+          continue;
+	    }
+        $this->translations[$module_name] = $json['translations'];
+      }
+      return ($jsonError == null);
+    }
+
+    public function __($text, $module="__core__") {
+	if( isset($this->translations[$module]) && isset($this->translations[$module][$text])) {
+      return $this->translations[$module][$text];
+	}
+        return $text;
+    }
+
+    function find_language(array $available_languages, $desired_language) {
+
+        $available_languages = array_flip($available_languages);
+        $langs = [];
+        preg_match_all('~([\w-]+)(?:[^,\d]+([\d.]+))?~', strtolower($desired_language), $matches, PREG_SET_ORDER);
+
+        foreach($matches as $match) {
+
+            list($a, $b) = explode('-', $match[1]) + array('', '');
+            $value = isset($match[2]) ? (float) $match[2] : 1.0;
+
+            if(isset($available_languages[$match[1]])) {
+                $langs[$match[1]] = $value;
+                continue;
+            }
+
+            if(isset($available_languages[$a])) {
+                $langs[$a] = $value - 0.1;
+            }
+
+        }
+        arsort($langs);
+
+        if(count($langs) == 0) {
+            return L10N::default_language;
+        }
+        return array_keys($langs)[0];
+    }
+
+    function load_language_setting($modules_path) {
+      $webui_config_file = join('/', [rtrim($modules_path, '/'), 'nc-webui.sh']);
+      $fh    = fopen( $webui_config_file ,'r')
+        or exit( '{ "output": "' . $webui_config_file . ' read error" }' );
+      $lang = "auto";
+      while ( $line = fgets($fh) )
+      {
+        // drop down menu
+        if(preg_match('/^LANGUAGE_=\[(([_\w]+,)*[_\w]+)\]$/', $line, $matches))
+        {
+          $options = explode(',', $matches[1]);
+          foreach($options as $option)
+          {
+            if($option[0] == "_" && $option[count($option) - 1] == "_")
+            {
+              fclose($fh);
+              $lang = trim($option,'_');
+            }
+          }
+          fclose($fh);
+          return $lang;
+        }
+      }
+
+    }
+}