From 6ae5f3fd04bd7c9c9c5e65c262d64d255fe9d2b0 Mon Sep 17 00:00:00 2001
From: emanuele-f <black.silver@hotmail.it>
Date: Tue, 23 Mar 2021 19:26:15 +0100
Subject: [PATCH] Add initial language switch support

Also add italian translation
---
 .../com/emanuelef/remote_capture/Utils.java   |  10 ++
 .../activities/AboutActivity.java             |   4 +-
 .../activities/AppsActivity.java              |   4 +-
 .../activities/BaseActivity.java              |  24 ++++
 .../activities/ConnectionDetailsActivity.java |   3 +-
 .../activities/MainActivity.java              |   8 +-
 .../activities/SettingsActivity.java          |   4 +-
 .../activities/StatsActivity.java             |   3 +-
 .../emanuelef/remote_capture/model/Prefs.java |   1 +
 app/src/main/res/values-it/strings.xml        | 110 ++++++++++++++++++
 app/src/main/res/values-zh-rCN/strings.xml    |   1 -
 app/src/main/res/values/arrays.xml            |  10 ++
 app/src/main/res/values/strings.xml           |   5 +-
 app/src/main/res/xml/root_preferences.xml     |  13 ++-
 14 files changed, 176 insertions(+), 24 deletions(-)
 create mode 100644 app/src/main/java/com/emanuelef/remote_capture/activities/BaseActivity.java
 create mode 100644 app/src/main/res/values-it/strings.xml

diff --git a/app/src/main/java/com/emanuelef/remote_capture/Utils.java b/app/src/main/java/com/emanuelef/remote_capture/Utils.java
index 723a6bb8..edfe47dd 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/Utils.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/Utils.java
@@ -129,6 +129,16 @@ public class Utils {
         return fmt.format(new Date(epoch * 1000));
     }
 
+    public static void setAppLanguage(Context context, String language) {
+        Locale locale = new Locale(language);
+        Configuration config = new Configuration();
+
+        Locale.setDefault(locale);
+        config.locale = locale;
+        context.getResources().updateConfiguration(config,
+                context.getResources().getDisplayMetrics());
+    }
+
     public static String proto2str(int proto) {
         switch(proto) {
             case 6:     return "TCP";
diff --git a/app/src/main/java/com/emanuelef/remote_capture/activities/AboutActivity.java b/app/src/main/java/com/emanuelef/remote_capture/activities/AboutActivity.java
index 7e4a0c0d..65b8c327 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/activities/AboutActivity.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/activities/AboutActivity.java
@@ -24,12 +24,10 @@ import android.text.Html;
 import android.text.method.LinkMovementMethod;
 import android.widget.TextView;
 
-import androidx.appcompat.app.AppCompatActivity;
-
 import com.emanuelef.remote_capture.R;
 import com.emanuelef.remote_capture.Utils;
 
-public class AboutActivity extends AppCompatActivity {
+public class AboutActivity extends BaseActivity {
     private static final String TAG = "AboutActivity";
 
     @Override
diff --git a/app/src/main/java/com/emanuelef/remote_capture/activities/AppsActivity.java b/app/src/main/java/com/emanuelef/remote_capture/activities/AppsActivity.java
index eeca385c..d160b77a 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/activities/AppsActivity.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/activities/AppsActivity.java
@@ -21,11 +21,9 @@ package com.emanuelef.remote_capture.activities;
 
 import android.os.Bundle;
 
-import androidx.appcompat.app.AppCompatActivity;
-
 import com.emanuelef.remote_capture.R;
 
-public class AppsActivity extends AppCompatActivity {
+public class AppsActivity extends BaseActivity {
     private static final String TAG = "AppsActivity";
 
     @Override
diff --git a/app/src/main/java/com/emanuelef/remote_capture/activities/BaseActivity.java b/app/src/main/java/com/emanuelef/remote_capture/activities/BaseActivity.java
new file mode 100644
index 00000000..23586931
--- /dev/null
+++ b/app/src/main/java/com/emanuelef/remote_capture/activities/BaseActivity.java
@@ -0,0 +1,24 @@
+package com.emanuelef.remote_capture.activities;
+
+import android.content.SharedPreferences;
+import android.os.Bundle;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.preference.PreferenceManager;
+
+import com.emanuelef.remote_capture.Utils;
+import com.emanuelef.remote_capture.model.Prefs;
+
+class BaseActivity extends AppCompatActivity {
+    protected SharedPreferences mPrefs;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        mPrefs = PreferenceManager.getDefaultSharedPreferences(this);
+
+        if(!Prefs.useSystemLanguage(mPrefs))
+            Utils.setAppLanguage(this, "en");
+    }
+}
diff --git a/app/src/main/java/com/emanuelef/remote_capture/activities/ConnectionDetailsActivity.java b/app/src/main/java/com/emanuelef/remote_capture/activities/ConnectionDetailsActivity.java
index ef233c0e..6e88720c 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/activities/ConnectionDetailsActivity.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/activities/ConnectionDetailsActivity.java
@@ -20,7 +20,6 @@
 package com.emanuelef.remote_capture.activities;
 
 import androidx.annotation.NonNull;
-import androidx.appcompat.app.AppCompatActivity;
 
 import android.content.ClipData;
 import android.content.ClipboardManager;
@@ -37,7 +36,7 @@ import com.emanuelef.remote_capture.R;
 import com.emanuelef.remote_capture.Utils;
 import com.emanuelef.remote_capture.model.ConnectionDescriptor;
 
-public class ConnectionDetailsActivity extends AppCompatActivity {
+public class ConnectionDetailsActivity extends BaseActivity {
     private static final String TAG = "ConnectionDetails";
     public static final String CONN_EXTRA_KEY = "conn_descriptor";
     public static final String APP_NAME_EXTRA_KEY = "app_name";
diff --git a/app/src/main/java/com/emanuelef/remote_capture/activities/MainActivity.java b/app/src/main/java/com/emanuelef/remote_capture/activities/MainActivity.java
index 337c55df..23088fb7 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/activities/MainActivity.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/activities/MainActivity.java
@@ -23,7 +23,6 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
-import android.content.SharedPreferences;
 import android.database.Cursor;
 import android.net.Uri;
 import android.net.VpnService;
@@ -31,14 +30,12 @@ import android.net.VpnService;
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.ActionBarDrawerToggle;
 import androidx.appcompat.app.AlertDialog;
-import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.widget.Toolbar;
 import androidx.core.view.GravityCompat;
 import androidx.drawerlayout.widget.DrawerLayout;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
 import androidx.localbroadcastmanager.content.LocalBroadcastManager;
-import androidx.preference.PreferenceManager;
 import androidx.viewpager2.adapter.FragmentStateAdapter;
 import androidx.viewpager2.widget.ViewPager2;
 
@@ -68,8 +65,7 @@ import java.io.FileNotFoundException;
 
 import cat.ereza.customactivityoncrash.config.CaocConfig;
 
-public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
-    private SharedPreferences mPrefs;
+public class MainActivity extends BaseActivity implements NavigationView.OnNavigationItemSelectedListener {
     private ViewPager2 mPager;
     private TabLayout mTabLayout;
     private AppState mState;
@@ -113,8 +109,6 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
 
         setupTabs();
 
-        mPrefs = PreferenceManager.getDefaultSharedPreferences(this);
-
         /* Register for service status */
         mReceiver = new BroadcastReceiver() {
             @Override
diff --git a/app/src/main/java/com/emanuelef/remote_capture/activities/SettingsActivity.java b/app/src/main/java/com/emanuelef/remote_capture/activities/SettingsActivity.java
index c7307a40..b039e939 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/activities/SettingsActivity.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/activities/SettingsActivity.java
@@ -24,9 +24,7 @@ import android.text.InputType;
 import android.util.Patterns;
 
 import androidx.appcompat.app.ActionBar;
-import androidx.appcompat.app.AppCompatActivity;
 import androidx.preference.EditTextPreference;
-import androidx.preference.ListPreference;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceFragmentCompat;
 import androidx.preference.SwitchPreference;
@@ -36,7 +34,7 @@ import com.emanuelef.remote_capture.R;
 
 import java.util.regex.Matcher;
 
-public class SettingsActivity extends AppCompatActivity {
+public class SettingsActivity extends BaseActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
diff --git a/app/src/main/java/com/emanuelef/remote_capture/activities/StatsActivity.java b/app/src/main/java/com/emanuelef/remote_capture/activities/StatsActivity.java
index b8938767..4e026220 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/activities/StatsActivity.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/activities/StatsActivity.java
@@ -21,7 +21,6 @@ package com.emanuelef.remote_capture.activities;
 
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.ActionBar;
-import androidx.appcompat.app.AppCompatActivity;
 import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 
 import android.content.BroadcastReceiver;
@@ -43,7 +42,7 @@ import com.emanuelef.remote_capture.R;
 import com.emanuelef.remote_capture.Utils;
 import com.emanuelef.remote_capture.model.VPNStats;
 
-public class StatsActivity extends AppCompatActivity {
+public class StatsActivity extends BaseActivity {
     private BroadcastReceiver mReceiver;
     private TextView mBytesSent;
     private TextView mBytesRcvd;
diff --git a/app/src/main/java/com/emanuelef/remote_capture/model/Prefs.java b/app/src/main/java/com/emanuelef/remote_capture/model/Prefs.java
index 438047e5..a99a3106 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/model/Prefs.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/model/Prefs.java
@@ -65,4 +65,5 @@ public class Prefs {
     public static int getTlsProxyPort(SharedPreferences p)       { return(Integer.parseInt(p.getString(Prefs.PREF_TLS_PROXY_PORT_KEY, "8080"))); }
     public static String getAppFilter(SharedPreferences p)       { return(p.getString(PREF_APP_FILTER, "")); }
     public static boolean getIPv6Enabled(SharedPreferences p)    { return(p.getBoolean(PREF_IPV6_ENABLED, false)); }
+    public static boolean useSystemLanguage(SharedPreferences p) { return("system".equals(p.getString("app_language", "system")));}
 }
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
new file mode 100644
index 00000000..ff7cac9a
--- /dev/null
+++ b/app/src/main/res/values-it/strings.xml
@@ -0,0 +1,110 @@
+<resources>
+    <string name="start_button">Avvia</string>
+    <string name="stop_button">Ferma</string>
+    <string name="title_activity_settings">Impostazioni</string>
+    <string name="no_filter">Nessun Filtro</string>
+    <string name="collector_info">Collettore UDP: %1$s:%2$d</string>
+    <string name="http_server_status">Server HTTP: http://%1$s:%2$d</string>
+    <string name="up_and_down">%1$s ricevuti — %2$s inviati</string>
+    <string name="query">Query</string>
+    <string name="host">Host</string>
+    <string name="capture_not_running">La cattura non è in esecuzione!</string>
+    <string name="capture_not_started">La cattura non è stata avviata!</string>
+    <string name="app_filter">Filtro App</string>
+    <string name="ready">Pronto</string>
+    <string name="about">Informazioni</string>
+    <string name="status">Stato</string>
+    <string name="connections_view">Connessioni</string>
+    <string name="no_connections">Nessuna connessione</string>
+    <string name="connection_details">Dettagli Connessione</string>
+    <string name="app">App</string>
+    <string name="protocol">Protocollo</string>
+    <string name="source">Sorgente</string>
+    <string name="destination">Destinazione</string>
+    <string name="bytes">Bytes</string>
+    <string name="packets">Pacchetti</string>
+    <string name="duration">Durata</string>
+    <string name="http_server">Server HTTP</string>
+    <string name="udp_exporter">Esportatore UDP</string>
+    <string name="no_dump">Nessun Dump</string>
+    <string name="no_dump_info">Il PCAP non sarà dumpato</string>
+    <string name="http_server_info">Avvia un server HTTP per il download del PCAP</string>
+    <string name="udp_exporter_info">Invia il PCAP a un collettore UDP remoto</string>
+    <string name="http_server_port">Porta del Server HTTP</string>
+    <string name="receiver_ip_address">IP del Collettore</string>
+    <string name="receiver_port">Porta del Collettore</string>
+    <string name="dump_mode">Modalità di Dump</string>
+    <string name="tls_proxy_ip_address">IP del mitmproxy</string>
+    <string name="tls_proxy_port">Porta del mitmproxy</string>
+    <string name="enable_tls_decryption">Abilita Decrittazione TLS</string>
+    <string name="enable_tls_decryption_summary">Quando abilitata, tutto il traffico TLS sarà rediretto a un\'istanza mitmproxy remota per la decrittazione.</string>
+    <string name="tls_decryption">Decrittazione TLS</string>
+    <string name="user_guide">Guida Utente</string>
+    <string name="rate_app">Valuta</string>
+    <string name="open_telegram_group">Gruppo Telegram</string>
+    <string name="source_code">Codice Sorgente</string>
+    <string name="yes">SI</string>
+    <string name="no">NO</string>
+    <string name="existing_vpn_confirm">L\'app di VPN attualmente in esecuzione verrà disconnessa. Vuoi procedere?</string>
+    <string name="vpn_setup_failed">Setup della VPN fallito</string>
+    <string name="app_not_found">L\'app "%1$s" non è stata trovata</string>
+    <string name="apps_loading_please_wait">Caricamento delle app in corso, attendere</string>
+    <string name="stats">Statistiche</string>
+    <string name="active_connections">Connessioni Attive</string>
+    <string name="dropped_connections">Connessioni Droppate</string>
+    <string name="tot_connections">Connessioni Totali</string>
+    <string name="open_sockets">Socket Aperti</string>
+    <string name="max_file_descriptor">FD Massimo</string>
+    <string name="bytes_sent">Bytes Inviati</string>
+    <string name="bytes_rcvd">Bytes Ricevuti</string>
+    <string name="packets_sent">Pacchetti Inviati</string>
+    <string name="packets_rcvd">Pacchetti Ricevuti</string>
+    <string name="dns_queries">Query DNS</string>
+    <string name="search_apps">Cerca App</string>
+    <string name="no_apps">Nessuna app</string>
+    <string name="dns_server">Server DNS</string>
+    <string name="apps">App</string>
+    <string name="remove_app_filter">Rimuovi il filtro app</string>
+    <string name="set_app_filter">Imposta il filtro app</string>
+    <string name="navigation_drawer_open">Apri Drawer</string>
+    <string name="navigation_drawer_close">Chiudi Drawer</string>
+    <string name="pcap_file">File PCAP</string>
+    <string name="pcap_file_info">Crea un file PCAP nella memoria del dispositivo</string>
+    <string name="cannot_write_pcap_file">Impossibile scrivere il file PCAP</string>
+    <string name="cannot_write_file">Impossibile scrivere il file</string>
+    <string name="share">Condividi</string>
+    <string name="delete">Elimina</string>
+    <string name="ok">Ok</string>
+    <string name="pcap_file_action">Traffico salvato nel file %1$s (%2$s).</string>
+    <string name="delete_error">Impossibile eliminare il file</string>
+    <string name="capture_running">Cattura in esecuzione</string>
+    <string name="notification_msg">%1$s catturati, %2$s connessioni</string>
+    <string name="no_app_filter">Nessun filtro app impostato</string>
+    <string name="proto_and_port">%1$s, %2$d</string>
+    <string name="conn_status_open">Aperta</string>
+    <string name="first_seen">Inizio</string>
+    <string name="last_seen">Fine</string>
+    <string name="conn_status_closed">Chiusa</string>
+    <string name="copy_to_clipboard">Copia negli appunti</string>
+    <string name="copied_to_clipboard">Copiato negli appunti!</string>
+    <string name="connections_csv_fields_v1">IPProto,SrcIP,SrcPort,DstIp,DstPort,Uid,App,Proto,Status,Info,BytesSent,BytesRcvd,PktsSent,PktsRcvd,FirstSeen,LastSeen</string>
+    <string name="save_to_file">Esporta in un file</string>
+    <string name="file_saved">File salvato correttamente</string>
+    <string name="older_connections_notice">%1$d connessioni precedenti nascoste</string>
+    <string name="about_text">PCAPdroid è un software libero per la cattura e il monitoraggio di rete che funziona senza privilegi di root.</string>
+    <string name="app_no_warranty">PCAPdroid è distribuito nella speranza che sia utile, ma SENZA ALCUNA GARANZIA; senza neanche la garanzia implicita di COMMERCIABILITÀ o IDONEITÀ PER UNO SCOPO PARTICOLARE. Fare riferimento alla GNU General Public License per ulteriori dettagli.</string>
+    <string name="gpl_license_link">Licenza GPLv3</string>
+    <string name="get_app">Scaricala:</string>
+    <string name="tls_how_to">Come impostare la Decrittazione TLS</string>
+    <string name="unknown_app">Sconosciuta</string>
+    <string name="vpn_prefs">VPN</string>
+    <string name="enable_ipv6">Abilita IPv6</string>
+    <string name="enable_ipv6_summary">Permetti connessioni internet IPv6. Da abilitare soltanto in reti con gateway IPv6.</string>
+    <string name="error">Errore</string>
+    <string name="conn_status_unreachable">Irraggiungibile</string>
+    <string name="other_prefs">Altro</string>
+    <string name="app_language">Lingua dell\'App</string>
+    <string name="lang_english">Inglese</string>
+    <string name="lang_system_default">Predefinita del sistema</string>
+</resources>
+
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index a93d4fb2..faccf157 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -48,7 +48,6 @@
     <string name="tls_proxy_port">mitmproxy 端口</string>
     <string name="enable_tls_decryption">启用 TLS 解密</string>
     <string name="enable_tls_decryption_summary">启用后，所有 TLS 通信都将被重定向到远程 mitmproxy 实例进行解密。</string>
-    <string name="default_proxy_port">8080</string>
     <string name="tls_decryption">TLS 解密</string>
     <string name="user_guide">用户指南</string>
     <string name="rate_app">评分</string>
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index bb498353..fbd32ccc 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -20,4 +20,14 @@
         <item>@string/pcap_file_info</item>
         <item>@string/udp_exporter_info</item>
     </string-array>
+
+    <string-array name="app_languages">
+        <item>system</item>
+        <item>english</item>
+    </string-array>
+
+    <string-array name="app_languages_labels">
+        <item>@string/lang_system_default</item>
+        <item>@string/lang_english</item>
+    </string-array>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 6c2eaa21..173650ba 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -48,7 +48,6 @@
     <string name="tls_proxy_port">mitmproxy Port</string>
     <string name="enable_tls_decryption">Enable TLS Decryption</string>
     <string name="enable_tls_decryption_summary">When enabled, all the TLS traffic will be redirected to a remote mitmproxy instance for decryption.</string>
-    <string name="default_proxy_port">8080</string>
     <string name="tls_decryption">TLS Decryption</string>
     <string name="user_guide">User Guide</string>
     <string name="rate_app">Rate</string>
@@ -113,5 +112,9 @@
     <string name="enable_ipv6_summary">Allow IPv6 internet connections. This should only be enabled on networks with an IPv6 gateway.</string>
     <string name="error">Error</string>
     <string name="conn_status_unreachable">Unreachable</string>
+    <string name="other_prefs">Other</string>
+    <string name="app_language">App Language</string>
+    <string name="lang_english">English</string>
+    <string name="lang_system_default">System default</string>
 </resources>
 
diff --git a/app/src/main/res/xml/root_preferences.xml b/app/src/main/res/xml/root_preferences.xml
index 038f0c7c..a07253aa 100644
--- a/app/src/main/res/xml/root_preferences.xml
+++ b/app/src/main/res/xml/root_preferences.xml
@@ -70,16 +70,25 @@
             app:key="tls_proxy_port"
             app:title="@string/tls_proxy_port"
             app:iconSpaceReserved="false"
-            app:defaultValue="@string/default_proxy_port"
+            app:defaultValue="8080"
             app:useSimpleSummaryProvider="true" />
     </PreferenceCategory>
 
-    <PreferenceCategory app:title="@string/vpn_prefs" app:iconSpaceReserved="false">
+    <PreferenceCategory app:title="@string/other_prefs" app:iconSpaceReserved="false">
         <SwitchPreference
             app:key="ipv6_enabled"
             app:title="@string/enable_ipv6"
             app:iconSpaceReserved="false"
             app:summary="@string/enable_ipv6_summary"
             app:defaultValue="false" />
+
+        <DropDownPreference
+            app:key="app_language"
+            app:title="@string/app_language"
+            android:entries="@array/app_languages_labels"
+            android:entryValues="@array/app_languages"
+            app:iconSpaceReserved="false"
+            app:defaultValue="system"
+            app:useSimpleSummaryProvider="true"/>
     </PreferenceCategory>
 </PreferenceScreen>